mmdebstrap: Show APT's dependency trace when in debug mode

A dependency trace is a powerful tool to debug issues related to
APT's selection of packages, especially in custom mode.

Thus it makes sense to ask APT to output a dependency trace when
`mmdebstrap` is run with the `--debug` flag.

.mailmap

@@ -1,6 +1,2 @@
 Johannes Schauer Marin Rodrigues <josch@mister-muffin.de>
 Johannes Schauer Marin Rodrigues <josch@mister-muffin.de> <j.schauer@email.de>
-Johannes Schauer Marin Rodrigues <josch@mister-muffin.de> <josch@debian.org>
-Johannes Schauer Marin Rodrigues <josch@mister-muffin.de> <Johannes Schauer Marin Rodrigues josch@debian.org>
-Helmut Grohne <helmut@subdivi.de> <helmut.grohne@intenta.de>
-Benjamin Drung <benjamin.drung@ionos.com> <benjamin.drung@cloud.ionos.com>

CHANGELOG.md

@@ -1,166 +1,3 @@
-1.5.4 (2024-10-28)
-------------------
-
- - do not generate apt sources.list entry if SUITE is empty
-
-1.5.3 (2024-09-13)
-------------------
-
- - tidy up any zombie processes
- - chrootless hurd-i386
- - add --skip=cleanup/reproducible/machine-id
- - m-a-b-q: replace test_installed by dpkg-checkbuilddeps
-
-1.5.2 (2024-06-26)
-------------------
-
- - mmdebstrap-autopkgtest-build-qemu produces bit-by-bit reproducible output
-
-1.5.1 (2024-06-03)
-------------------
-
- - in root and unshare mode, run 'mount --make-rprivate /' before bind-mounting
- - switch apt variant from using 'apt-get dist-upgrade' to apt patterns
-
-1.5.0 (2024-05-14)
-------------------
-
- - add --format=ext4
-
-1.4.3 (2024-02-01)
-------------------
-
- - take hard links into account when computing disk usage
-
-1.4.2 (2024-01-29)
-------------------
-
- - allow for start-stop-daemon to be in either /sbin or /usr/sbin
- - mmdebstrap-autopkgtest-build-qemu: fix octal mode computation and hostname
-
-1.4.1 (2024-01-09)
-------------------
-
- - set DPkg::Chroot-Directory in APT_CONFIG to simplify calling apt in hooks
- - disallow running chrootless as root without fakeroot unless
-   --skip=check/chrootless is used
- - only print short --help output if wrong args are passed
- - read files passed as --aptopt and --dpkgopt outside the unshared namespace
-
-1.4.0 (2023-10-24)
-------------------
-
- - add mmdebstrap-autopkgtest-build-qemu
- - export container=mmdebstrap-unshare env variable in unshare-mode hooks
- - add new skip options: output/dev, output/mknod, tar-in/mknod,
-   copy-in/mknod, sync-in/mknod
- - stop copying qemu-$arch-static binary into the chroot
- - tarfilter: add --type-exclude option
- - set MMDEBSTRAP_FORMAT in hooks
- - do not install priority:required in buildd variant following debootstrap
-
-1.3.8 (2023-08-20)
-------------------
-
- - hooks/merged-usr: implement post-merging as debootstrap does
- - exclude ./lost+found from tarball
-
-1.3.7 (2023-06-21)
-------------------
-
- - add hooks/copy-host-apt-sources-and-preferences
-
-1.3.6 (2023-06-16)
-------------------
-
- - bugfix release
-
-1.3.5 (2023-03-20)
-------------------
-
- - bugfix release
-
-1.3.4 (2023-03-16)
-------------------
-
- - more safeguards before automatically choosing unshare mode
-
-1.3.3 (2023-02-19)
-------------------
-
- - testsuite improvements
-
-1.3.2 (2023-02-16)
-------------------
-
- - unshare mode works in privileged docker containers
-
-1.3.1 (2023-01-20)
-------------------
-
- - bugfix release
-
-1.3.0 (2023-01-16)
-------------------
-
- - add hooks/maybe-jessie-or-older and hooks/maybe-merged-usr
- - add --skip=check/signed-by
- - hooks/jessie-or-older: split into two individual hook files
- - skip running apt-get update if we are very sure that it was already run
- - be more verbose when 'apt-get update' failed
- - warn if a hook is named like one but not executable and if a hook is
-   executable but not named like one
- - to find signed-by value, run gpg on the individual keys to print better
-   error messages in case it fails (gpg doesn't give an indication which file
-   it was unable to read) and print progress bar
- - allow empty sources.list entries
-
-1.2.5 (2023-01-04)
-------------------
-
- - bugfix release
-
-1.2.4 (2022-12-23)
-------------------
-
- - bugfix release
- - add jessie-or-older extract hook
-
-1.2.3 (2022-11-16)
-------------------
-
- - use Text::ParseWords::shellwords instead of spawning a new shell
- - mount and unmount once, instead for each run_chroot() call
-
-1.2.2 (2022-10-27)
-------------------
-
- - allow /etc/apt/trusted.gpg.d/ not to exist
- - always create /var/lib/dpkg/arch to make foreign architecture chrootless
-   tarballs bit-by-bit identical
- - write an empty /etc/machine-id instead of writing 'uninitialized'
- - only print progress bars on interactive terminals that are wide enough
-
-1.2.1 (2022-09-08)
-------------------
-
- - bugfix release
-
-1.2.0 (2022-09-05)
-------------------
-
- - remove proot mode
- - error out if stdout is an interactive terminal
- - replace taridshift by tarfilter --idshift
- - tarfilter: add --transform option
- - multiple --skip options can be separated by comma or whitespace
- - also cleanup the contents of /run
- - support apt patterns and paths with commas and whitespace in --include
- - hooks: store the values of the --include option in MMDEBSTRAP_INCLUDE
- - add new --skip options: chroot/start-stop-daemon, chroot/policy-rc.d
-   chroot/mount, chroot/mount/dev, chroot/mount/proc, chroot/mount/sys,
-   cleanup/run
-
 1.1.0 (2022-07-26)
 ----------------
 

README.md

@@ -23,11 +23,6 @@ For the full documentation use:
 
     pod2man ./mmdebstrap | man -l -
 
-Or read a HTML version of the man page in either of these locations:
-
- - https://gitlab.mister-muffin.de/josch/mmdebstrap/wiki
- - https://manpages.debian.org/unstable/mmdebstrap/mmdebstrap.1.en.html
-
 The sales pitch in comparison to debootstrap
 --------------------------------------------
 
@@ -39,7 +34,7 @@ Summary:
  - chroot with apt in 11 seconds
  - gzipped tarball with apt is 27M small
  - bit-by-bit reproducible output
- - unprivileged operation using Linux user namespaces or fakechroot
+ - unprivileged operation using Linux user namespaces, fakechroot or proot
  - can operate on filesystems mounted with nodev
  - foreign architecture chroots with qemu-user
  - variant installing only Essential:yes packages and dependencies
@@ -83,9 +78,9 @@ privileges to create a file (the chroot tarball) in one's home directory.
 Thus, mmdebstrap provides multiple options to create a chroot tarball with the
 right permissions **without superuser privileges**. This avoids a whole class
 of bugs like #921815. Depending on what is available, it uses either Linux user
-namespaces or fakechroot. Debootstrap supports fakechroot but will not
+namespaces, fakechroot or proot.  Debootstrap supports fakechroot but will not
 create a tarball with the right permissions by itself. Support for Linux user
-namespaces is missing (see #829134).
+namespaces and proot is missing (see bugs #829134 and #698347, respectively).
 
 When creating a chroot tarball with debootstrap, the temporary chroot directory
 cannot be on a filesystem that has been mounted with nodev. In unprivileged
@@ -158,21 +153,10 @@ Contributors
 
  - Johannes Schauer Marin Rodrigues (main author)
  - Helmut Grohne
- - Jochen Sprickerhof
- - Gioele Barabucci
  - Benjamin Drung
+ - Steve Dodd
  - Josh Triplett
  - Konstantin Demin
- - Chris Hofstaedtler
- - Colin Watson
- - David Kalnischkies
- - Emilio Pozuelo Monfort
- - Francesco Poli
- - Jakub Wilk
- - Joe Groocock
- - Max-Julian Pogner
- - Nicolas Vigier
- - Raul Tambre
- - Steve Dodd
  - Trent W. Buck
  - Vagrant Cascadian
+ - Gioele Barabucci

caching_proxy.py

@@ -1,118 +0,0 @@
-#!/usr/bin/env python3
-
-import sys
-import os
-import time
-import http.client
-import http.server
-from io import StringIO
-import pathlib
-import urllib.parse
-
-oldcachedir = None
-newcachedir = None
-readonly = False
-
-
-class ProxyRequestHandler(http.server.BaseHTTPRequestHandler):
-    def do_GET(self):
-        assert int(self.headers.get("Content-Length", 0)) == 0
-        assert self.headers["Host"]
-        pathprefix = "http://" + self.headers["Host"] + "/"
-        assert self.path.startswith(pathprefix)
-        sanitizedpath = urllib.parse.unquote(self.path.removeprefix(pathprefix))
-        oldpath = oldcachedir / sanitizedpath
-        newpath = newcachedir / sanitizedpath
-
-        if not readonly:
-            newpath.parent.mkdir(parents=True, exist_ok=True)
-
-        # just send back to client
-        if newpath.exists():
-            print(f"proxy cached: {self.path}", file=sys.stderr)
-            self.wfile.write(b"HTTP/1.1 200 OK\r\n")
-            self.send_header("Content-Length", newpath.stat().st_size)
-            self.end_headers()
-            with newpath.open(mode="rb") as new:
-                while True:
-                    buf = new.read(64 * 1024)  # same as shutil uses
-                    if not buf:
-                        break
-                    self.wfile.write(buf)
-            self.wfile.flush()
-            return
-
-        if readonly:
-            newpath = pathlib.Path("/dev/null")
-
-        # copy from oldpath to newpath and send back to client
-        # Only take files from the old cache if they are .deb files or Packages
-        # files in the by-hash directory as only those are unique by their path
-        # name. Other files like InRelease files have to be downloaded afresh.
-        if oldpath.exists() and (
-            oldpath.suffix == ".deb" or "by-hash" in oldpath.parts
-        ):
-            print(f"proxy cached: {self.path}", file=sys.stderr)
-            self.wfile.write(b"HTTP/1.1 200 OK\r\n")
-            self.send_header("Content-Length", oldpath.stat().st_size)
-            self.end_headers()
-            with oldpath.open(mode="rb") as old, newpath.open(mode="wb") as new:
-                # we are not using shutil.copyfileobj() because we want to
-                # write to two file objects simultaneously
-                while True:
-                    buf = old.read(64 * 1024)  # same as shutil uses
-                    if not buf:
-                        break
-                    self.wfile.write(buf)
-                    new.write(buf)
-            self.wfile.flush()
-            return
-
-        # download fresh copy
-        try:
-            print(f"\rproxy download: {self.path}", file=sys.stderr)
-            conn = http.client.HTTPConnection(self.headers["Host"], timeout=5)
-            conn.request("GET", self.path, None, dict(self.headers))
-            res = conn.getresponse()
-            assert (res.status, res.reason) == (200, "OK"), (res.status, res.reason)
-            self.wfile.write(b"HTTP/1.1 200 OK\r\n")
-            for k, v in res.getheaders():
-                # do not allow a persistent connection
-                if k == "connection":
-                    continue
-                self.send_header(k, v)
-            self.end_headers()
-            with newpath.open(mode="wb") as f:
-                # we are not using shutil.copyfileobj() because we want to
-                # write to two file objects simultaneously and throttle the
-                # writing speed to 1024 kB/s
-                while True:
-                    buf = res.read(64 * 1024)  # same as shutil uses
-                    if not buf:
-                        break
-                    self.wfile.write(buf)
-                    f.write(buf)
-                    time.sleep(64 / 1024)  # 1024 kB/s
-            self.wfile.flush()
-        except Exception as e:
-            self.send_error(502)
-
-
-def main():
-    global oldcachedir, newcachedir, readonly
-    if sys.argv[1] == "--readonly":
-        readonly = True
-        oldcachedir = pathlib.Path(sys.argv[2])
-        newcachedir = pathlib.Path(sys.argv[3])
-    else:
-        oldcachedir = pathlib.Path(sys.argv[1])
-        newcachedir = pathlib.Path(sys.argv[2])
-    print(f"starting caching proxy for {newcachedir}", file=sys.stderr)
-    httpd = http.server.ThreadingHTTPServer(
-        server_address=("", 8080), RequestHandlerClass=ProxyRequestHandler
-    )
-    httpd.serve_forever()
-
-
-if __name__ == "__main__":
-    main()

coverage.py

@@ -10,17 +10,16 @@ import argparse
 import time
 from datetime import timedelta
 from collections import defaultdict
-from itertools import product
 
 have_qemu = os.getenv("HAVE_QEMU", "yes") == "yes"
+have_unshare = os.getenv("HAVE_UNSHARE", "yes") == "yes"
 have_binfmt = os.getenv("HAVE_BINFMT", "yes") == "yes"
 run_ma_same_tests = os.getenv("RUN_MA_SAME_TESTS", "yes") == "yes"
-use_host_apt_config = os.getenv("USE_HOST_APT_CONFIG", "no") == "yes"
 cmd = os.getenv("CMD", "./mmdebstrap")
 
 default_dist = os.getenv("DEFAULT_DIST", "unstable")
 all_dists = ["oldstable", "stable", "testing", "unstable"]
-default_mode = "auto"
+default_mode = "auto" if have_unshare else "root"
 all_modes = ["auto", "root", "unshare", "fakechroot", "chrootless"]
 default_variant = "apt"
 all_variants = [
@@ -34,12 +33,12 @@ all_variants = [
     "standard",
 ]
 default_format = "auto"
-all_formats = ["auto", "directory", "tar", "squashfs", "ext2", "ext4", "null"]
+all_formats = ["auto", "directory", "tar", "squashfs", "ext2", "null"]
 
 mirror = os.getenv("mirror", "http://127.0.0.1/debian")
 hostarch = subprocess.check_output(["dpkg", "--print-architecture"]).decode().strip()
 
-release_path = f"./shared/cache/debian/dists/{default_dist}/InRelease"
+release_path = f"./shared/cache/debian/dists/{default_dist}/Release"
 if not os.path.exists(release_path):
     print("path doesn't exist:", release_path, file=sys.stderr)
     print("run ./make_mirror.sh first", file=sys.stderr)
@@ -67,96 +66,6 @@ def skip(condition, dist, mode, variant, fmt):
     return ""
 
 
-def parse_config(confname):
-    config_dict = defaultdict(dict)
-    config_order = list()
-    all_vals = {
-        "Dists": all_dists,
-        "Modes": all_modes,
-        "Variants": all_variants,
-        "Formats": all_formats,
-    }
-    with open(confname) as f:
-        for test in Deb822.iter_paragraphs(f):
-            if "Test" not in test.keys():
-                print("Test without name", file=sys.stderr)
-                exit(1)
-            name = test["Test"]
-            config_order.append(name)
-            for k in test.keys():
-                v = test[k]
-                if k not in [
-                    "Test",
-                    "Dists",
-                    "Modes",
-                    "Variants",
-                    "Formats",
-                    "Skip-If",
-                    "Needs-QEMU",
-                    "Needs-Root",
-                    "Needs-APT-Config",
-                ]:
-                    print(f"Unknown field name {k} in test {name}")
-                    exit(1)
-                if k in all_vals.keys():
-                    if v == "default":
-                        print(
-                            f"Setting {k} to default in Test {name} is redundant",
-                            file=sys.stderr,
-                        )
-                        exit(1)
-                    if v == "any":
-                        v = all_vals[k]
-                    else:
-                        # else, split the value by whitespace
-                        v = v.split()
-                        for i in v:
-                            if i not in all_vals[k]:
-                                print(
-                                    f"{i} is not a valid value for {k}", file=sys.stderr
-                                )
-                                exit(1)
-                config_dict[name][k] = v
-    return config_order, config_dict
-
-
-def format_test(num, total, name, dist, mode, variant, fmt, config_dict):
-    ret = f"({num}/{total}) {name}"
-    if len(config_dict[name].get("Dists", [])) > 1:
-        ret += f" --dist={dist}"
-    if len(config_dict[name].get("Modes", [])) > 1:
-        ret += f" --mode={mode}"
-    if len(config_dict[name].get("Variants", [])) > 1:
-        ret += f" --variant={variant}"
-    if len(config_dict[name].get("Formats", [])) > 1:
-        ret += f" --format={fmt}"
-    return ret
-
-
-def print_time_per_test(time_per_test, name="test"):
-    print(
-        f"average time per {name}:",
-        sum(time_per_test.values(), start=timedelta()) / len(time_per_test),
-        file=sys.stderr,
-    )
-    print(
-        f"median time per {name}:",
-        sorted(time_per_test.values())[len(time_per_test) // 2],
-        file=sys.stderr,
-    )
-    head_tail_num = 10
-    print(f"{head_tail_num} fastests {name}s:", file=sys.stderr)
-    for k, v in sorted(time_per_test.items(), key=lambda i: i[1])[
-        : min(head_tail_num, len(time_per_test))
-    ]:
-        print(f"    {k}: {v}", file=sys.stderr)
-    print(f"{head_tail_num} slowest {name}s:", file=sys.stderr)
-    for k, v in sorted(time_per_test.items(), key=lambda i: i[1], reverse=True)[
-        : min(head_tail_num, len(time_per_test))
-    ]:
-        print(f"    {k}: {v}", file=sys.stderr)
-
-
 def main():
     parser = argparse.ArgumentParser()
     parser.add_argument("test", nargs="*", help="only run these tests")
@@ -177,34 +86,14 @@ def main():
         default=0,
         help="exit after first num failures or errors.",
     )
-    parser.add_argument(
-        "--mode",
-        metavar="mode",
-        help=f"only run tests with this mode (Default = {default_mode})",
-    )
-    parser.add_argument(
-        "--dist",
-        metavar="dist",
-        help=f"only run tests with this dist (Default = {default_dist})",
-    )
-    parser.add_argument(
-        "--variant",
-        metavar="variant",
-        help=f"only run tests with this variant (Default = {default_variant})",
-    )
-    parser.add_argument(
-        "--format",
-        metavar="format",
-        help=f"only run tests with this format (Default = {default_format})",
-    )
-    parser.add_argument(
-        "--skip", metavar="test", action="append", help="skip this test"
-    )
+    parser.add_argument("--mode", metavar="mode", help="only run tests with this mode")
+    parser.add_argument("--dist", metavar="dist", help="only run tests with this dist")
     args = parser.parse_args()
 
     # copy over files from git or as distributed
-    for git, dist, target in [
+    for (git, dist, target) in [
         ("./mmdebstrap", "/usr/bin/mmdebstrap", "mmdebstrap"),
+        ("./taridshift", "/usr/bin/mmtaridshift", "taridshift"),
         ("./tarfilter", "/usr/bin/mmtarfilter", "tarfilter"),
         (
             "./proxysolver",
@@ -229,57 +118,59 @@ def main():
             "/usr/share/mmdebstrap/hooks", "shared/hooks", dirs_exist_ok=True
         )
 
-    # parse coverage.txt
-    config_order, config_dict = parse_config("coverage.txt")
-
-    indirbutnotcovered = set(
-        [d for d in os.listdir("tests") if not d.startswith(".")]
-    ) - set(config_order)
-    if indirbutnotcovered:
-        print(
-            "test(s) missing from coverage.txt: %s"
-            % (", ".join(sorted(indirbutnotcovered))),
-            file=sys.stderr,
-        )
-        exit(1)
-    coveredbutnotindir = set(config_order) - set(
-        [d for d in os.listdir("tests") if not d.startswith(".")]
-    )
-    if coveredbutnotindir:
-        print(
-            "test(s) missing from ./tests: %s"
-            % (", ".join(sorted(coveredbutnotindir))),
-            file=sys.stderr,
-        )
-
-        exit(1)
-
-    # produce the list of tests using the cartesian product of all allowed
-    # dists, modes, variants and formats of a given test
     tests = []
-    for name in config_order:
-        test = config_dict[name]
-        for dist, mode, variant, fmt in product(
-            test.get("Dists", [default_dist]),
-            test.get("Modes", [default_mode]),
-            test.get("Variants", [default_variant]),
-            test.get("Formats", [default_format]),
-        ):
-            skipreason = skip(test.get("Skip-If"), dist, mode, variant, fmt)
+    with open("coverage.txt") as f:
+        for test in Deb822.iter_paragraphs(f):
+            name = test["Test"]
+            dists = test.get("Dists", default_dist)
+            if dists == "any":
+                dists = all_dists
+            elif dists == "default":
+                dists = [default_dist]
+            else:
+                dists = dists.split()
+            modes = test.get("Modes", default_mode)
+            if modes == "any":
+                modes = all_modes
+            elif modes == "default":
+                modes = [default_mode]
+            else:
+                modes = modes.split()
+            variants = test.get("Variants", default_variant)
+            if variants == "any":
+                variants = all_variants
+            elif variants == "default":
+                variants = [default_variant]
+            else:
+                variants = variants.split()
+            formats = test.get("Formats", default_format)
+            if formats == "any":
+                formats = all_formats
+            elif formats == "default":
+                formats = [default_format]
+            else:
+                formats = formats.split()
+            for dist in dists:
+                for mode in modes:
+                    for variant in variants:
+                        for fmt in formats:
+                            skipreason = skip(
+                                test.get("Skip-If"), dist, mode, variant, fmt
+                            )
                             if skipreason:
                                 tt = ("skip", skipreason)
-            elif (
-                test.get("Needs-APT-Config", "false") == "true" and use_host_apt_config
-            ):
-                tt = ("skip", "test cannot use host apt config")
                             elif have_qemu:
                                 tt = "qemu"
                             elif test.get("Needs-QEMU", "false") == "true":
                                 tt = ("skip", "test needs QEMU")
                             elif test.get("Needs-Root", "false") == "true":
                                 tt = "sudo"
+                            elif mode == "auto" and not have_unshare:
+                                tt = "sudo"
                             elif mode == "root":
                                 tt = "sudo"
+                            elif mode == "unshare" and not have_unshare:
+                                tt = ("skip", "test needs unshare")
                             else:
                                 tt = "null"
                             tests.append((tt, name, dist, mode, variant, fmt))
@@ -312,8 +203,6 @@ def main():
     failed = []
     num_success = 0
     num_finished = 0
-    time_per_test = {}
-    acc_time_per_test = defaultdict(list)
     for i, (test, name, dist, mode, variant, fmt) in enumerate(tests):
         if torun and i not in torun:
             continue
@@ -334,7 +223,7 @@ def main():
             )
             print("time left: %s" % timeleft, file=sys.stderr)
         if failed:
-            print("failed: %d" % len(failed), file=sys.stderr)
+            print("failed: %d" % len(failed))
         num_finished += 1
         with open("tests/" + name) as fin, open("shared/test.sh", "w") as fout:
             for line in fin:
@@ -347,36 +236,6 @@ def main():
                 line = line.replace("{{ FORMAT }}", fmt)
                 line = line.replace("{{ HOSTARCH }}", hostarch)
                 fout.write(line)
-        # ignore:
-        # SC2016 Expressions don't expand in single quotes, use double quotes for that.
-        # SC2050 This expression is constant. Did you forget the $ on a variable?
-        # SC2194 This word is constant. Did you forget the $ on a variable?
-        shellcheck = subprocess.run(
-            [
-                "shellcheck",
-                "--exclude=SC2050,SC2194,SC2016",
-                "-f",
-                "gcc",
-                "shared/test.sh",
-            ],
-            check=False,
-            stdout=subprocess.PIPE,
-        ).stdout.decode()
-        shfmt = subprocess.run(
-            [
-                "shfmt",
-                "--posix",
-                "--binary-next-line",
-                "--case-indent",
-                "--indent",
-                "2",
-                "--simplify",
-                "-d",
-                "shared/test.sh",
-            ],
-            check=False,
-            stdout=subprocess.PIPE,
-        ).stdout.decode()
         argv = None
         match test:
             case "qemu":
@@ -387,29 +246,17 @@ def main():
                 argv = ["./run_null.sh"]
             case ("skip", reason):
                 skipped[reason].append(
-                    format_test(
-                        i + 1, len(tests), name, dist, mode, variant, fmt, config_dict
-                    )
+                    ("(%d/%d) %s" % (i + 1, len(tests), name), dist, mode, variant, fmt)
                 )
                 print(f"skipped because of {reason}", file=sys.stderr)
                 continue
         print(separator, file=sys.stderr)
-        if args.skip and name in args.skip:
-            print(f"skipping because of --skip={name}", file=sys.stderr)
-            continue
         if args.dist and args.dist != dist:
             print(f"skipping because of --dist={args.dist}", file=sys.stderr)
             continue
         if args.mode and args.mode != mode:
             print(f"skipping because of --mode={args.mode}", file=sys.stderr)
             continue
-        if args.variant and args.variant != variant:
-            print(f"skipping because of --variant={args.variant}", file=sys.stderr)
-            continue
-        if args.format and args.format != fmt:
-            print(f"skipping because of --format={args.format}", file=sys.stderr)
-            continue
-        before = time.time()
         proc = subprocess.Popen(argv)
         try:
             proc.wait()
@@ -417,28 +264,17 @@ def main():
             proc.terminate()
             proc.wait()
             break
-        after = time.time()
-        walltime = timedelta(seconds=int(after - before))
-        formated_test_name = format_test(
-            i + 1, len(tests), name, dist, mode, variant, fmt, config_dict
-        )
-        time_per_test[formated_test_name] = walltime
-        acc_time_per_test[name].append(walltime)
         print(separator, file=sys.stderr)
-        print(f"duration: {walltime}", file=sys.stderr)
-        if proc.returncode != 0 or shellcheck != "" or shfmt != "":
-            if shellcheck != "":
-                print(shellcheck)
-            if shfmt != "":
-                print(shfmt)
-            failed.append(formated_test_name)
+        if proc.returncode != 0:
+            failed.append(
+                ("(%d/%d) %s" % (i + 1, len(tests), name), dist, mode, variant, fmt)
+            )
             print("result: FAILURE", file=sys.stderr)
         else:
             print("result: SUCCESS", file=sys.stderr)
             num_success += 1
         if args.maxfail and len(failed) >= args.maxfail:
             break
-    print(separator, file=sys.stderr)
     print(
         "successfully ran %d tests" % num_success,
         file=sys.stderr,
@@ -449,24 +285,10 @@ def main():
             print(f"skipped because of {reason}:", file=sys.stderr)
             for t in l:
                 print(f"    {t}", file=sys.stderr)
-    if len(time_per_test) > 1:
-        print_time_per_test(time_per_test)
-    if len(acc_time_per_test) > 1:
-        print_time_per_test(
-            {
-                f"{len(v)}x {k}": sum(v, start=timedelta())
-                for k, v in acc_time_per_test.items()
-            },
-            "accumulated test",
-        )
     if failed:
         print("failed %d:" % len(failed), file=sys.stderr)
-        for f in failed:
-            print(f, file=sys.stderr)
-    currenttime = time.time()
-    walltime = timedelta(seconds=int(currenttime - starttime))
-    print(f"total runtime: {walltime}", file=sys.stderr)
-    if failed:
+        for t in failed:
+            print(f"    {t}", file=sys.stderr)
         exit(1)
 
 

coverage.sh

@@ -2,22 +2,11 @@
 
 set -eu
 
-# by default, use the mmdebstrap executable in the current directory together
-# with perl Devel::Cover but allow to overwrite this
-: "${CMD:=perl -MDevel::Cover=-silent,-nogcov ./mmdebstrap}"
-
-case "$CMD" in
-  "mmdebstrap "* | mmdebstrap | *" mmdebstrap" | *" mmdebstrap "*)
-    MMSCRIPT="$(command -v mmdebstrap 2>/dev/null)"
-    ;;
-  *) MMSCRIPT=./mmdebstrap ;;
-esac
-
-if [ -e "$MMSCRIPT" ]; then
+if [ -e ./mmdebstrap -a -e ./taridshift -a -e ./tarfilter -a -e ./coverage.py ]; then
 	TMPFILE=$(mktemp)
-  perltidy <"$MMSCRIPT" >"$TMPFILE"
+	perltidy < ./mmdebstrap > "$TMPFILE"
 	ret=0
-  diff -u "$MMSCRIPT" "$TMPFILE" || ret=$?
+	diff -u ./mmdebstrap "$TMPFILE" || ret=$?
 	if [ "$ret" -ne 0 ]; then
 		echo "perltidy failed" >&2
 		rm "$TMPFILE"
@@ -25,25 +14,16 @@ if [ -e "$MMSCRIPT" ]; then
 	fi
 	rm "$TMPFILE"
 
-  if [ "$(sed -e '/^__END__$/,$d' "$MMSCRIPT" | wc --max-line-length)" -gt 79 ]; then
+	if [ $(sed -e '/^__END__$/,$d' ./mmdebstrap | wc --max-line-length) -gt 79 ]; then
 		echo "exceeded maximum line length of 79 characters" >&2
 		exit 1
 	fi
 
-  perlcritic --severity 4 --verbose 8 "$MMSCRIPT"
+	perlcritic --severity 4 --verbose 8 ./mmdebstrap
 
-  pod2man "$MMSCRIPT" >/dev/null
+	black --check ./taridshift ./tarfilter ./coverage.py
 fi
 
-for f in tarfilter coverage.py caching_proxy.py; do
-  [ -e "./$f" ] || continue
-  black --check "./$f"
-done
-
-shellcheck --exclude=SC2016 coverage.sh make_mirror.sh run_null.sh run_qemu.sh gpgvnoexpkeysig mmdebstrap-autopkgtest-build-qemu hooks/*/*.sh
-
-shfmt --binary-next-line --case-indent --indent 2 --simplify -d coverage.sh make_mirror.sh run_null.sh run_qemu.sh mmdebstrap-autopkgtest-build-qemu gpgvnoexpkeysig
-
 mirrordir="./shared/cache/debian"
 
 if [ ! -e "$mirrordir" ]; then
@@ -60,15 +40,29 @@ rm -f shared/cover_db.img
 
 if [ "$HAVE_QEMU" = "yes" ]; then
 	# prepare image for cover_db
-  fallocate -l 64M shared/cover_db.img
-  /usr/sbin/mkfs.vfat shared/cover_db.img
+	guestfish -N shared/cover_db.img=disk:64M -- mkfs vfat /dev/sda
 
-  if [ ! -e "./shared/cache/debian-$DEFAULT_DIST.ext4" ]; then
-    echo "./shared/cache/debian-$DEFAULT_DIST.ext4 does not exist" >&2
+	if [ ! -e "./shared/cache/debian-$DEFAULT_DIST.qcow" ]; then
+		echo "./shared/cache/debian-$DEFAULT_DIST.qcow does not exist" >&2
 		exit 1
 	fi
 fi
 
+# check if all required debootstrap tarballs exist
+notfound=0
+for dist in oldstable stable testing unstable; do
+	for variant in minbase buildd -; do
+		if [ ! -e "shared/cache/debian-$dist-$variant.tar" ]; then
+			echo "shared/cache/debian-$dist-$variant.tar does not exist" >&2
+			notfound=1
+		fi
+	done
+done
+if [ "$notfound" -ne 0 ]; then
+	echo "not all required debootstrap tarballs are present" >&2
+	exit 1
+fi
+
 # choose the timestamp of the unstable Release file, so that we get
 # reproducible results for the same mirror timestamp
 SOURCE_DATE_EPOCH=$(date --date="$(grep-dctrl -s Date -n '' "$mirrordir/dists/$DEFAULT_DIST/Release")" +%s)
@@ -76,19 +70,29 @@ SOURCE_DATE_EPOCH=$(date --date="$(grep-dctrl -s Date -n '' "$mirrordir/dists/$D
 # for traditional sort order that uses native byte values
 export LC_ALL=C.UTF-8
 
+: "${HAVE_UNSHARE:=yes}"
+: "${HAVE_PROOT:=yes}"
 : "${HAVE_BINFMT:=yes}"
 
+defaultmode="auto"
+if [ "$HAVE_UNSHARE" != "yes" ]; then
+	defaultmode="root"
+fi
+
+# by default, use the mmdebstrap executable in the current directory together
+# with perl Devel::Cover but allow to overwrite this
+: "${CMD:=perl -MDevel::Cover=-silent,-nogcov ./mmdebstrap}"
 mirror="http://127.0.0.1/debian"
 
-export HAVE_QEMU HAVE_BINFMT RUN_MA_SAME_TESTS DEFAULT_DIST SOURCE_DATE_EPOCH CMD mirror
+export HAVE_QEMU HAVE_UNSHARE HAVE_BINFMT RUN_MA_SAME_TESTS DEFAULT_DIST SOURCE_DATE_EPOCH CMD mirror
 
-./coverage.py "$@"
+./coverage.py
 
 if [ -e shared/cover_db.img ]; then
 	# produce report inside the VM to make sure that the versions match or
 	# otherwise we might get:
 	# Can't read shared/cover_db/runs/1598213854.252.64287/cover.14 with Sereal: Sereal: Error: Bad Sereal header: Not a valid Sereal document. at offset 1 of input at srl_decoder.c line 600 at /usr/lib/x86_64-linux-gnu/perl5/5.30/Devel/Cover/DB/IO/Sereal.pm line 34, <$fh> chunk 1.
-  cat <<END >shared/test.sh
+	cat << END > shared/test.sh
 cover -nogcov -report html_basic cover_db >&2
 mkdir -p report
 for f in common.js coverage.html cover.css css.js mmdebstrap--branch.html mmdebstrap--condition.html mmdebstrap.html mmdebstrap--subroutine.html standardista-table-sorting.js; do
@@ -98,20 +102,15 @@ cover -delete cover_db >&2
 END
 	if [ "$HAVE_QEMU" = "yes" ]; then
 		./run_qemu.sh
+	elif [ "$mode" = "root" ]; then
+		./run_null.sh SUDO
 	else
 		./run_null.sh
 	fi
 
 	echo
-  echo "open file://$(pwd)/shared/report/coverage.html in a browser"
+	echo open file://$(pwd)/shared/report/coverage.html in a browser
 	echo
 fi
 
-# check if the wiki has to be updated with pod2markdown output
-if [ "${DEBEMAIL-}" = "josch@debian.org" ]; then
-  bash -exc "diff -u <(curl --silent https://gitlab.mister-muffin.de/josch/mmdebstrap/wiki/raw/Home | dos2unix; echo) <(pod2markdown < mmdebstrap)" || :
-fi
-
-rm -f shared/test.sh shared/tar1.txt shared/tar2.txt shared/pkglist.txt shared/doc-debian.tar.list shared/mmdebstrap shared/tarfilter shared/proxysolver
-
-echo "$0 finished successfully" >&2
+rm shared/test.sh shared/tar1.txt shared/tar2.txt shared/pkglist.txt shared/doc-debian.tar.list shared/mmdebstrap shared/taridshift shared/tarfilter shared/proxysolver

coverage.txt

@@ -1,20 +1,10 @@
-Test: debootstrap
-Dists: any
-Variants: minbase buildd -
-Needs-Root: true
-Needs-APT-Config: true
-
 Test: check-against-debootstrap-dist
 Dists: any
 Variants: minbase buildd -
 Needs-Root: true
-Needs-APT-Config: true
 
 Test: as-debootstrap-unshare-wrapper
-Modes: unshare
-Needs-Root: true
-Variants: minbase -
-Needs-APT-Config: true
+Needs-QEMU: true
 
 Test: help
 
@@ -30,7 +20,6 @@ Needs-Root: true
 
 Test: dist-using-codename
 Dists: any
-Needs-APT-Config: true
 
 Test: fail-without-etc-subuid
 Needs-QEMU: true
@@ -40,15 +29,12 @@ Needs-QEMU: true
 
 Test: unshare-as-root-user-inside-chroot
 Needs-Root: true
-Needs-APT-Config: true
 
 Test: root-mode-inside-chroot
 Needs-Root: true
-Needs-APT-Config: true
 
 Test: root-mode-inside-unshare-chroot
-Modes: unshare
-Needs-APT-Config: true
+Needs-QEMU: true
 
 Test: root-without-cap-sys-admin
 Needs-Root: true
@@ -56,27 +42,19 @@ Needs-Root: true
 Test: mount-is-missing
 Needs-QEMU: true
 
-Test: mmdebstrap
-Needs-Root: true
-Modes: root
-Formats: tar squashfs ext2 ext4
-Variants: essential apt minbase buildd - standard
-Skip-If:
- variant == "standard" and dist == "oldstable" # #864082, #1004557, #1004558
- mode == "fakechroot" and variant in ["-", "standard"] # no extended attributes
- variant == "standard" and dist in ["oldstable", "stable"] and hostarch in ["armel", "armhf", "mipsel"] # #1031276
-
 Test: check-for-bit-by-bit-identical-format-output
-Modes: unshare fakechroot
-Formats: tar squashfs ext2 ext4
-Variants: essential apt minbase buildd - standard
-Skip-If:
- variant == "standard" and dist == "oldstable" # #864082, #1004557, #1004558
- mode == "fakechroot" and variant in ["-", "standard"] # no extended attributes
- variant == "standard" and dist in ["oldstable", "stable"] and hostarch in ["armel", "armhf", "mipsel"] # #1031276
-
-Test: tarfilter-idshift
 Needs-QEMU: true
+Formats: tar squashfs ext2
+Variants: essential apt minbase buildd important standard
+Skip-If:
+ variant == "standard" and dist in ["oldstable", "stable"] # #864082, #1004557, #1004558
+ variant == "important" and dist == "oldstable" # /var/lib/systemd/catalog/database differs
+ fmt == "squashfs" and dist == "oldstable" # squashfs-tools-ng is not available
+ fmt == "ext2" and dist == "oldstable" # genext2fs does not support SOURCE_DATE_EPOCH
+
+Test: taridshift-utility
+Needs-QEMU: true
+Skip-If: dist == "oldstable" # python3 tarfile module does not preserve xattrs
 
 Test: progress-bars-on-fake-tty
 
@@ -96,21 +74,19 @@ Test: missing-device-nodes-outside-the-chroot
 Needs-QEMU: true
 
 Test: missing-dev-sys-proc-inside-the-chroot
-Modes: unshare
-Variants: custom
+Needs-QEMU: true
 
 Test: chroot-directory-not-accessible-by-apt-user
 Needs-Root: true
 
 Test: cwd-directory-not-accessible-by-unshared-user
-Needs-Root: true
-Modes: unshare
+Needs-QEMU: true
 
 Test: create-gzip-compressed-tarball
+Needs-QEMU: true
 
 Test: custom-tmpdir
-Needs-Root: true
-Modes: unshare
+Needs-QEMU: true
 
 Test: xz-compressed-tarball
 
@@ -133,7 +109,6 @@ Test: read-from-stdin-write-to-stdout
 Test: supply-components-manually
 Modes: root
 Needs-Root: true
-Needs-APT-Config: true
 
 Test: stable-default-mirror
 Needs-QEMU: true
@@ -158,23 +133,19 @@ Needs-QEMU: true
 Test: mirror-is-deb
 
 Test: mirror-is-real-file
-Needs-APT-Config: true
 
 Test: deb822-1-2
 Modes: root
 Needs-Root: true
-Needs-APT-Config: true
 
 Test: deb822-2-2
 Modes: root
 Needs-Root: true
-Needs-APT-Config: true
 
 Test: automatic-mirror-from-suite
 Needs-QEMU: true
 
 Test: invalid-mirror
-Needs-APT-Config: true
 
 Test: fail-installing-to-root
 Modes: root
@@ -194,18 +165,16 @@ Skip-If:
  hostarch != "amd64"
  not run_ma_same_tests
 
-Test: include-foreign-libmagic-mgc
+Test: include-libmagic-mgc-arm64
 Needs-Root: true
-Needs-APT-Config: true
 Skip-If:
- hostarch not in ["amd64", "arm64"]
+ hostarch != "amd64"
  not run_ma_same_tests
 
-Test: include-foreign-libmagic-mgc-with-multiple-arch-options
+Test: include-libmagic-mgc-arm64-with-multiple-arch-options
 Needs-Root: true
-Needs-APT-Config: true
 Skip-If:
- hostarch not in ["amd64", "arm64"]
+ hostarch != "amd64"
  not run_ma_same_tests
 
 Test: aptopt
@@ -216,7 +185,6 @@ Needs-QEMU: true
 
 Test: keyring-overwrites
 Needs-Root: true
-Needs-APT-Config: true
 
 Test: signed-by-without-host-keys
 Needs-QEMU: true
@@ -226,7 +194,6 @@ Needs-QEMU: true
 
 Test: signed-by-with-host-keys
 Needs-Root: true
-Needs-APT-Config: true
 
 Test: dpkgopt
 Needs-Root: true
@@ -240,6 +207,9 @@ Needs-Root: true
 Test: include-with-multiple-apt-sources
 Needs-Root: true
 
+Test: merged-usr-via-setup-hook
+Needs-Root: true
+
 Test: essential-hook
 Needs-Root: true
 
@@ -260,34 +230,28 @@ Needs-Root: true
 
 Test: special-hooks-using-helpers
 Needs-Root: true
-Needs-APT-Config: true
 
 Test: special-hooks-using-helpers-and-env-vars
 Needs-Root: true
-Needs-APT-Config: true
 
 Test: special-hooks-with-mode-mode
 Modes: root unshare fakechroot
+Needs-QEMU: true
 
 Test: debootstrap-no-op-options
 Needs-Root: true
 
 Test: verbose
-Variants: standard
-Skip-If:
- variant == "standard" and dist == "oldstable" # #864082, #1004557, #1004558
+Needs-Root: true
 
 Test: debug
-Variants: standard
-Skip-If:
- variant == "standard" and dist == "oldstable" # #864082, #1004557, #1004558
+Needs-Root: true
 
 Test: quiet
 Needs-Root: true
 
 Test: logfile
 Needs-Root: true
-Needs-APT-Config: true
 
 Test: without-etc-resolv-conf-and-etc-hostname
 Needs-QEMU: true
@@ -300,83 +264,56 @@ Test: not-having-to-install-apt-in-include-because-a-hook-did-it-before
 
 Test: remove-start-stop-daemon-and-policy-rc-d-in-hook
 
-Test: skip-start-stop-daemon-policy-rc
-
-Test: skip-mount
-Modes: unshare
-
 Test: compare-output-with-pre-seeded-var-cache-apt-archives
 Needs-QEMU: true
 Variants: any
 Skip-If:
- variant == "standard" and dist == "oldstable" # #864082, #1004557, #1004558
+ variant == "standard" and dist in ["oldstable", "stable"] # #864082, #1004557, #1004558
+ variant == "important" and dist == "oldstable" # /var/lib/systemd/catalog/database differs
 
 Test: create-directory-dry-run
-Modes: root
 
 Test: create-tarball-dry-run
 Variants: any
 Modes: any
 
 Test: unpack-doc-debian
-Modes: root fakechroot
+Needs-QEMU: true
+Modes: any
 Variants: extract
-Needs-APT-Config: true
 
 Test: install-doc-debian
 Modes: chrootless
 Variants: custom
-Needs-APT-Config: true
 
-Test: chrootless
-Variants: essential
-Modes: chrootless
-Needs-Root: true
-Skip-If:
- dist == "oldstable"
-
-Test: chrootless-fakeroot
-Variants: essential
+Test: install-known-good-from-essential-yes
+Variants: custom
 Modes: chrootless
 Skip-If:
- dist == "oldstable"
- hostarch in ["i386", "armel", "armhf", "mipsel"] # #1023286
-
-Test: chrootless-foreign
-Variants: essential
-Modes: chrootless
-Skip-If:
- dist == "oldstable"
- hostarch not in ["amd64", "arm64"]
- not run_ma_same_tests
-Needs-QEMU: true
+ True # #1006692
+ dist in ["oldstable", "stable"]
 
 Test: install-doc-debian-and-output-tarball
 Variants: custom
 Modes: chrootless
-Needs-APT-Config: true
 
 Test: install-doc-debian-and-test-hooks
 Variants: custom
 Modes: chrootless
-Needs-APT-Config: true
 
-Test: install-libmagic-mgc-on-foreign
-Variants: custom
-Modes: chrootless
+Test: install-libmagic-mgc-on-arm64
 Skip-If:
- hostarch not in ["amd64", "arm64"]
+ hostarch != "amd64"
  not have_binfmt
 
 Test: install-busybox-based-sub-essential-system
 Needs-Root: true
 
-Test: create-foreign-tarball
+Test: create-arm64-tarball
 Modes: root unshare fakechroot
 Skip-If:
- hostarch not in ["amd64", "arm64"]
+ hostarch != "amd64"
  mode == "fakechroot" and not run_ma_same_tests
- mode == "fakechroot" and hostarch == "arm64" # usrmerge postinst under fakechroot wants to copy /lib/ld-linux-x86-64.so.2 (which does not exist) instead of /lib64/ld-linux-x86-64.so.2
  not have_binfmt
 
 Test: no-sbin-in-path
@@ -384,54 +321,4 @@ Modes: fakechroot
 
 Test: dev-ptmx
 Modes: root unshare
-
-Test: error-if-stdout-is-tty
-
-Test: variant-custom-timeout
-
-Test: include-deb-file
-Modes: root unshare fakechroot
-Needs-APT-Config: true
-
-Test: unshare-include-deb
-Modes: unshare
-
-Test: pivot_root
-Modes: root unshare
-Needs-APT-Config: true
-
-Test: jessie-or-older
-Needs-Root: true
-Modes: root unshare fakechroot
-Variants: essential apt minbase
-Skip-If: mode == "fakechroot" and hostarch in ["i386", "armel", "armhf", "mipsel"] # #1023286
-
-Test: apt-patterns
-
-Test: apt-patterns-custom
-
-Test: empty-sources.list
-
-Test: merged-fakechroot-inside-unmerged-chroot
-Needs-Root: true
-Needs-APT-Config: true
-Skip-If:
- hostarch in ["i386", "armel", "armhf", "mipsel"] # #1023286
- dist in ["testing", "unstable"]  # #1053671
-
-Test: auto-mode-as-normal-user
-Modes: auto
-
-Test: skip-output-dev
-Modes: root unshare
-
-Test: skip-output-mknod
-Modes: root unshare
-
-Test: skip-tar-in-mknod
-Modes: unshare
-
-Test: zombie-reaping
-Modes: unshare
-
-Test: empty-suite
+Needs-QEMU: true

gpgvnoexpkeysig

@@ -1,7 +1,6 @@
 #!/bin/sh
 #
-# No copyright is claimed.  This code is in the public domain; do with
-# it what you wish.
+# This script is in the public domain
 #
 # Author: Johannes Schauer Marin Rodrigues <josch@mister-muffin.de>
 #
@@ -41,7 +40,7 @@ find_gpgv_status_fd() {
 GPGSTATUSFD="$(find_gpgv_status_fd "$@")"
 
 case $GPGSTATUSFD in
-  '' | *[!0-9]*)
+	''|*[!0-9]*)
 		echo "invalid --status-fd argument" >&2
 		exit 1
 		;;

hooks/busybox/extract00.sh

@@ -2,7 +2,7 @@
 
 set -eu
 
-if [ "${MMDEBSTRAP_VERBOSITY:-1}" -ge 3 ]; then
+if [ "$MMDEBSTRAP_VERBOSITY" -ge 3 ]; then
 	set -x
 fi
 

hooks/busybox/setup00.sh

@@ -2,7 +2,7 @@
 
 set -eu
 
-if [ "${MMDEBSTRAP_VERBOSITY:-1}" -ge 3 ]; then
+if [ "$MMDEBSTRAP_VERBOSITY" -ge 3 ]; then
 	set -x
 fi
 

hooks/copy-host-apt-sources-and-preferences/customize00.pl

@@ -1,44 +0,0 @@
-#!/usr/bin/perl
-#
-# This script makes sure that all packages that are installed both locally as
-# well as inside the chroot have the same version.
-#
-# It is implemented in Perl because there are no associative arrays in POSIX
-# shell.
-
-use strict;
-use warnings;
-
-sub get_pkgs {
-    my $root = shift;
-    my %pkgs = ();
-    open(my $fh, '-|', 'dpkg-query', "--root=$root", '--showformat',
-        '${binary:Package}=${Version}\n', '--show')
-      // die "cannot exec dpkg-query";
-    while (my $line = <$fh>) {
-        my ($pkg, $ver) = split(/=/, $line, 2);
-        $pkgs{$pkg} = $ver;
-    }
-    close $fh;
-    if ($? != 0) { die "failed to run dpkg-query" }
-    return %pkgs;
-}
-
-my %pkgs_local  = get_pkgs('/');
-my %pkgs_chroot = get_pkgs($ARGV[0]);
-
-my @diff = ();
-foreach my $pkg (keys %pkgs_chroot) {
-    next unless exists $pkgs_local{$pkg};
-    if ($pkgs_local{$pkg} ne $pkgs_chroot{$pkg}) {
-        push @diff, $pkg;
-    }
-}
-
-if (scalar @diff > 0) {
-    print STDERR "E: packages from the host and the chroot differ:\n";
-    foreach my $pkg (@diff) {
-	print STDERR "E: $pkg $pkgs_local{$pkg} $pkgs_chroot{$pkg}\n";
-    }
-    exit 1;
-}

hooks/copy-host-apt-sources-and-preferences/setup00.sh

@@ -1,55 +0,0 @@
-#!/bin/sh
-#
-# This script makes sure that the apt sources.list and preferences from outside
-# the chroot also exist inside the chroot by *appending* them to any existing
-# files. If you do not want to keep the original content, add another setup
-# hook before this one which cleans up the files you don't want to keep.
-#
-# If instead of copying sources.list verbatim you want to mangle its contents,
-# consider using python-apt for that. An example can be found in the Debian
-# packaging of mmdebstrap in ./debian/tests/sourcesfilter
-
-set -eu
-
-if [ "${MMDEBSTRAP_VERBOSITY:-1}" -ge 3 ]; then
-	set -x
-fi
-
-if [ -n "${MMDEBSTRAP_SUITE:-}" ]; then
-	if [ "${MMDEBSTRAP_VERBOSITY:-1}" -ge 1 ]; then
-		echo "W: using a non-empty suite name $MMDEBSTRAP_SUITE does not make sense with this hook and might select the wrong Essential:yes package set" >&2
-	fi
-fi
-
-rootdir="$1"
-
-SOURCELIST="/etc/apt/sources.list"
-eval "$(apt-config shell SOURCELIST Dir::Etc::SourceList/f)"
-SOURCEPARTS="/etc/apt/sources.d/"
-eval "$(apt-config shell SOURCEPARTS Dir::Etc::SourceParts/d)"
-PREFERENCES="/etc/apt/preferences"
-eval "$(apt-config shell PREFERENCES Dir::Etc::Preferences/f)"
-PREFERENCESPARTS="/etc/apt/preferences.d/"
-eval "$(apt-config shell PREFERENCESPARTS Dir::Etc::PreferencesParts/d)"
-
-for f in "$SOURCELIST" \
-	"$SOURCEPARTS"/*.list \
-	"$SOURCEPARTS"/*.sources \
-	"$PREFERENCES" \
-	"$PREFERENCESPARTS"/*; do
-	[ -e "$f" ] || continue
-	mkdir --parents "$(dirname "$rootdir/$f")"
-	if [ -e "$rootdir/$f" ]; then
-		if [ "${MMDEBSTRAP_VERBOSITY:-1}" -ge 2 ]; then
-			echo "I: $f already exists in chroot, appending..." >&2
-		fi
-		# Add extra newline between old content and new content.
-		# This is required in case of deb822 files.
-		echo >> "$rootdir/$f"
-	fi
-	cat "$f" >> "$rootdir/$f"
-	if [ "${MMDEBSTRAP_VERBOSITY:-1}" -ge 3 ]; then
-		echo "D: contents of $f inside the chroot:" >&2
-		cat "$rootdir/$f" >&2
-	fi
-done

hooks/eatmydata/customize.sh

@@ -2,7 +2,7 @@
 
 set -eu
 
-if [ "${MMDEBSTRAP_VERBOSITY:-1}" -ge 3 ]; then
+if [ "$MMDEBSTRAP_VERBOSITY" -ge 3 ]; then
 	set -x
 fi
 
@@ -13,14 +13,14 @@ if [ -e "$rootdir/var/lib/dpkg/arch" ]; then
 else
 	chrootarch=$(dpkg --print-architecture)
 fi
-libdir="/usr/lib/$(dpkg-architecture -a "$chrootarch" -q DEB_HOST_MULTIARCH)"
+libdir="/usr/lib/$(dpkg-architecture -a $chrootarch -q DEB_HOST_MULTIARCH)"
 
 # if eatmydata was actually installed properly, then we are not removing
 # anything here
-if ! chroot "$rootdir" dpkg-query --show eatmydata; then
+if ! chroot "$rootdir" dpkg-query --list eatmydata; then
 	rm "$rootdir/usr/bin/eatmydata"
 fi
-if ! chroot "$rootdir" dpkg-query --show libeatmydata1; then
+if ! chroot "$rootdir" dpkg-query --list libeatmydata1; then
 	rm "$rootdir$libdir"/libeatmydata.so*
 fi
 

hooks/eatmydata/extract.sh

@@ -2,7 +2,7 @@
 
 set -eu
 
-if [ "${MMDEBSTRAP_VERBOSITY:-1}" -ge 3 ]; then
+if [ "$MMDEBSTRAP_VERBOSITY" -ge 3 ]; then
 	set -x
 fi
 
@@ -14,10 +14,8 @@ else
 	chrootarch=$(dpkg --print-architecture)
 fi
 
-trusted=
-eval "$(apt-config shell trusted Dir::Etc::trusted/f)"
-trustedparts=
-eval "$(apt-config shell trustedparts Dir::Etc::trustedparts/d)"
+eval $(apt-config shell trusted Dir::Etc::trusted/f)
+eval $(apt-config shell trustedparts Dir::Etc::trustedparts/d)
 tmpfile=$(mktemp --tmpdir="$rootdir/tmp")
 cat << END > "$tmpfile"
 Apt::Architecture "$chrootarch";
@@ -32,7 +30,7 @@ END
 tmpdir=$(mktemp --directory --tmpdir="$rootdir/tmp")
 env --chdir="$tmpdir" APT_CONFIG="$tmpfile" apt-get download --print-uris eatmydata libeatmydata1 \
 	| sed -ne "s/^'\([^']\+\)'\s\+\(\S\+\)\s\+\([0-9]\+\)\s\+\(SHA256:[a-f0-9]\+\)$/\1 \2 \3 \4/p" \
-	| while read -r uri fname size hash; do
+	| while read uri fname size hash; do
 		echo "processing $fname" >&2
 		if [ -e "$tmpdir/$fname" ]; then
 			echo "$tmpdir/$fname already exists" >&2
@@ -47,7 +45,7 @@ env --chdir="$tmpdir" APT_CONFIG="$tmpfile" apt-get download --print-uris eatmyd
 					| tar --directory="$rootdir/usr/bin" --strip-components=3 --extract --verbose ./usr/bin/eatmydata
 				;;
 			libeatmydata1_*_$chrootarch.deb)
-				libdir="/usr/lib/$(dpkg-architecture -a "$chrootarch" -q DEB_HOST_MULTIARCH)"
+				libdir="/usr/lib/$(dpkg-architecture -a $chrootarch -q DEB_HOST_MULTIARCH)"
 				mkdir -p "$rootdir$libdir"
 				dpkg-deb --fsys-tarfile "$tmpdir/$fname" \
 					| tar --directory="$rootdir$libdir" --strip-components=4 --extract --verbose --wildcards ".$libdir/libeatmydata.so*"

hooks/file-mirror-automount/customize00.sh

@@ -1,10 +1,8 @@
 #!/bin/sh
-#
-# shellcheck disable=SC2086
 
 set -eu
 
-if [ "${MMDEBSTRAP_VERBOSITY:-1}" -ge 3 ]; then
+if [ "$MMDEBSTRAP_VERBOSITY" -ge 3 ]; then
 	set -x
 fi
 
@@ -23,17 +21,17 @@ case $MMDEBSTRAP_MODE in
 		echo "removing the following directories:" >&2 ;;
 esac
 
-< "$rootdir/run/mmdebstrap/file-mirror-automount" \
-	xargs $xargsopts echo "    $rootdir/{}"
+cat "$rootdir/run/mmdebstrap/file-mirror-automount" \
+	| xargs $xargsopts echo "    $rootdir/{}"
 
 case $MMDEBSTRAP_MODE in
 	root|unshare)
-		< "$rootdir/run/mmdebstrap/file-mirror-automount" \
-			xargs $xargsopts umount "$rootdir/{}"
+		cat "$rootdir/run/mmdebstrap/file-mirror-automount" \
+			| xargs $xargsopts umount "$rootdir/{}"
 		;;
 	*)
-		< "$rootdir/run/mmdebstrap/file-mirror-automount" \
-			xargs $xargsopts rm -r "$rootdir/{}"
+		cat "$rootdir/run/mmdebstrap/file-mirror-automount" \
+			| xargs $xargsopts rm -r "$rootdir/{}"
 		;;
 esac
 

hooks/file-mirror-automount/setup00.sh

@@ -2,22 +2,17 @@
 
 set -eu
 
-if [ "${MMDEBSTRAP_VERBOSITY:-1}" -ge 3 ]; then
+if [ "$MMDEBSTRAP_VERBOSITY" -ge 3 ]; then
 	set -x
 fi
 
 rootdir="$1"
 
-# process all configured apt repositories
-env APT_CONFIG="$MMDEBSTRAP_APT_CONFIG" apt-get indextargets --no-release-info --format '$(REPO_URI)' \
+env APT_CONFIG=$MMDEBSTRAP_APT_CONFIG apt-get indextargets --no-release-info --format '$(REPO_URI)' \
 	| sed -ne 's/^file:\/\+//p' \
 	| sort -u \
-	| while read -r path; do
+	| while read path; do
 		mkdir -p "$rootdir/run/mmdebstrap"
-		if [ ! -d "/$path" ]; then
-			echo "W: /$path is not an existing directory" >&2
-			continue
-		fi
 		case $MMDEBSTRAP_MODE in
 			root|unshare)
 				echo "bind-mounting /$path into the chroot" >&2
@@ -26,48 +21,9 @@ env APT_CONFIG="$MMDEBSTRAP_APT_CONFIG" apt-get indextargets --no-release-info -
 				;;
 			*)
 				echo "copying /$path into the chroot" >&2
-				mkdir -p "$rootdir/$path"
-				"$MMDEBSTRAP_ARGV0" --hook-helper "$rootdir" "$MMDEBSTRAP_MODE" "$MMDEBSTRAP_HOOK" env "$MMDEBSTRAP_VERBOSITY" sync-in "/$path" "/$path" <&"$MMDEBSTRAP_HOOKSOCK" >&"$MMDEBSTRAP_HOOKSOCK"
+				mkdir -p "$rootdir/$(dirname $path)"
+				cp -av "/$path" "$rootdir/$(dirname $path)"
 				;;
 		esac
 		printf '/%s\0' "$path" >> "$rootdir/run/mmdebstrap/file-mirror-automount"
 	done
-
-# process all files given via --include
-set -f # turn off pathname expansion
-IFS=',' # split by comma
-for pkg in $MMDEBSTRAP_INCLUDE; do
-	set +f; unset IFS
-	case $pkg in
-		./*|../*|/*) : ;; # we are interested in this case
-		*) continue ;; # not a file
-	esac
-	# undo escaping
-	pkg="$(printf '%s' "$pkg" | sed 's/%2C/,/g; s/%25/%/g')"
-	# check for existance
-	if [ ! -f "$pkg" ]; then
-		echo "$pkg does not exist" >&2
-		continue
-	fi
-	# make path absolute
-	pkg="$(realpath "$pkg")"
-	case "$pkg" in
-		/*) : ;;
-		*) echo "path for $pkg is not absolute" >&2; continue;;
-	esac
-	mkdir -p "$rootdir/run/mmdebstrap"
-	mkdir -p "$rootdir/$(dirname "$pkg")"
-	case $MMDEBSTRAP_MODE in
-		root|unshare)
-			echo "bind-mounting $pkg into the chroot" >&2
-			touch "$rootdir/$pkg"
-			mount -o bind "$pkg" "$rootdir/$pkg"
-			;;
-		*)
-			echo "copying $pkg into the chroot" >&2
-			"$MMDEBSTRAP_ARGV0" --hook-helper "$rootdir" "$MMDEBSTRAP_MODE" "$MMDEBSTRAP_HOOK" env "$MMDEBSTRAP_VERBOSITY" upload "$pkg" "$pkg" <&"$MMDEBSTRAP_HOOKSOCK" >&"$MMDEBSTRAP_HOOKSOCK"
-			;;
-	esac
-	printf '/%s\0' "$pkg" >> "$rootdir/run/mmdebstrap/file-mirror-automount"
-done
-set +f; unset IFS

hooks/jessie-or-older/extract00.sh

@@ -1,16 +0,0 @@
-#!/bin/sh
-
-set -eu
-
-if [ "${MMDEBSTRAP_VERBOSITY:-1}" -ge 3 ]; then
-	set -x
-fi
-
-TARGET="$1"
-
-# not needed since dpkg 1.17.11
-for f in available diversions cmethopt; do
-	if [ ! -e "$TARGET/var/lib/dpkg/$f" ]; then
-		touch "$TARGET/var/lib/dpkg/$f"
-	fi
-done

hooks/jessie-or-older/extract01.sh

@@ -1,47 +0,0 @@
-#!/bin/sh
-#
-# needed until init 1.33 which pre-depends on systemd-sysv
-# starting with init 1.34, init is not Essential:yes anymore
-#
-# jessie has init 1.22
-
-set -eu
-
-if [ "${MMDEBSTRAP_VERBOSITY:-1}" -ge 3 ]; then
-	set -x
-fi
-
-TARGET="$1"
-
-if [ -z "${MMDEBSTRAP_ESSENTIAL+x}" ]; then
-	MMDEBSTRAP_ESSENTIAL=
-	for f in "$TARGET/var/cache/apt/archives/"*.deb; do
-		[ -f "$f" ] || continue
-		f="${f#"$TARGET"}"
-		MMDEBSTRAP_ESSENTIAL="$MMDEBSTRAP_ESSENTIAL $f"
-	done
-fi
-
-fname_base_passwd=
-fname_base_files=
-fname_dpkg=
-for pkg in $MMDEBSTRAP_ESSENTIAL; do
-	pkgname=$(dpkg-deb --show --showformat='${Package}' "$TARGET/$pkg")
-	# shellcheck disable=SC2034
-	case $pkgname in
-		base-passwd) fname_base_passwd=$pkg;;
-		base-files)  fname_base_files=$pkg;;
-		dpkg)        fname_dpkg=$pkg;;
-	esac
-done
-
-for var in base_passwd base_files dpkg; do
-	eval 'val=$fname_'"$var"
-	[ -z "$val" ] && continue
-	chroot "$TARGET" dpkg --install --force-depends "$val"
-done
-
-# shellcheck disable=SC2086
-chroot "$TARGET" dpkg --unpack --force-depends $MMDEBSTRAP_ESSENTIAL
-
-chroot "$TARGET" dpkg --configure --pending

hooks/maybe-jessie-or-older/extract00.sh

@@ -1,37 +0,0 @@
-#!/bin/sh
-
-set -eu
-
-# we need to check the version of dpkg
-# since at this point packages are just extracted but not installed, we cannot use dpkg-query
-# since we want to support chrootless, we cannot run dpkg --version inside the chroot
-# to avoid this hook depending on dpkg-dev being installed, we do not parse the extracted changelog with dpkg-parsechangelog
-# we also want to avoid parsing the changelog because /usr/share/doc might've been added to dpkg --path-exclude
-# instead, we just ask apt about the latest version of dpkg it knows of
-# this should only fail in situations where there are multiple versions of dpkg in different suites
-ver=$(env --chdir="$1" APT_CONFIG="$MMDEBSTRAP_APT_CONFIG" apt-cache show --no-all-versions dpkg 2>/dev/null | sed -ne 's/^Version: \(.*\)$/\1/p' || printf '')
-if [ -z "$ver" ]; then
-	echo "no package called dpkg can be installed -- not running jessie-or-older extract00 hook" >&2
-	exit 0
-fi
-
-if dpkg --compare-versions "$ver" ge 1.17.11; then
-	echo "dpkg version $ver is >= 1.17.11 -- not running jessie-or-older extract00 hook" >&2
-	exit 0
-else
-	echo "dpkg version $ver is << 1.17.11 -- running jessie-or-older extract00 hook" >&2
-fi
-
-# resolve the script path using several methods in order:
-#  1. using dirname -- "$0"
-#  2. using ./hooks
-#  3. using /usr/share/mmdebstrap/hooks/
-for p in "$(dirname -- "$0")/.." ./hooks /usr/share/mmdebstrap/hooks; do
-	if [ -x "$p/jessie-or-older/extract00.sh" ] && [ -x "$p/jessie-or-older/extract01.sh" ]; then
-		"$p/jessie-or-older/extract00.sh" "$1"
-		exit 0
-	fi
-done
-
-echo "cannot find jessie-or-older hook anywhere" >&2
-exit 1

hooks/maybe-jessie-or-older/extract01.sh

@@ -1,57 +0,0 @@
-#!/bin/sh
-
-set -eu
-
-# The jessie-or-older extract01 hook has to be run up to the point where the
-# Essential:yes field was removed from the init package (with
-# init-system-helpers 1.34). Since the essential packages have only been
-# extracted but not installed, we cannot use dpkg-query to find out its
-# version. Since /usr/share/doc might be missing due to dpkg --path-exclude, we
-# also cannot check whether /usr/share/doc/init/copyright exists. There also
-# was a time (before init-system-helpers 1.20) where there was no init package
-# at all where we also want to apply this hook. So we just ask apt about the
-# candidate version for init-system-helpers. This should only fail in
-# situations where there are multiple versions of init-system-helpers in
-# different suites.
-ver=$(env --chdir="$1" APT_CONFIG="$MMDEBSTRAP_APT_CONFIG" apt-cache show --no-all-versions init-system-helpers 2>/dev/null | sed -ne 's/^Version: \(.*\)$/\1/p' || printf '')
-if [ -z "$ver" ]; then
-	# there is no package called init-system-helpers, so either:
-	#  - this is so old that init-system-helpers didn't exist yet
-	#  - we are in a future where init-system-helpers doesn't exist anymore
-	#  - something strange is going on
-	# we should only call the hook in the first case
-	ver=$(env --chdir="$1" APT_CONFIG="$MMDEBSTRAP_APT_CONFIG" apt-cache show --no-all-versions base-files 2>/dev/null | sed -ne 's/^Version: \(.*\)$/\1/p' || printf '')
-	if [ -z "$ver" ]; then
-		echo "neither init-system-helpers nor base-files can be installed -- not running jessie-or-older extract01 hook" >&2
-		exit 0
-	fi
-
-	# Jessie is Debian 8
-	if dpkg --compare-versions "$ver" ge 8; then
-		echo "there is no init-system-helpers but base-files version $ver is >= 8 -- not running jessie-or-older extract01 hook" >&2
-		exit 0
-	else
-		echo "there is no init-system-helpers but base-files version $ver is << 8 -- running jessie-or-older extract01 hook" >&2
-	fi
-else
-	if dpkg --compare-versions "$ver" ge 1.34; then
-		echo "init-system-helpers version $ver is >= 1.34 -- not running jessie-or-older extract01 hook" >&2
-		exit 0
-	else
-		echo "init-system-helpers version $ver is << 1.34 -- running jessie-or-older extract01 hook" >&2
-	fi
-fi
-
-# resolve the script path using several methods in order:
-#  1. using dirname -- "$0"
-#  2. using ./hooks
-#  3. using /usr/share/mmdebstrap/hooks/
-for p in "$(dirname -- "$0")/.." ./hooks /usr/share/mmdebstrap/hooks; do
-	if [ -x "$p/jessie-or-older/extract00.sh" ] && [ -x "$p/jessie-or-older/extract01.sh" ]; then
-		"$p/jessie-or-older/extract01.sh" "$1"
-		exit 0
-	fi
-done
-
-echo "cannot find jessie-or-older hook anywhere" >&2
-exit 1

hooks/maybe-merged-usr/essential00.sh

@@ -1,40 +0,0 @@
-#!/bin/sh
-
-set -eu
-
-ver=$(dpkg-query --root="$1" -f '${db:Status-Status} ${Source} ${Version}' --show usr-is-merged 2>/dev/null || printf '')
-case "$ver" in
-	'')
-		echo "no package called usr-is-merged is installed -- not running merged-usr essential hook" >&2
-		exit 0
-		;;
-	'installed mmdebstrap-dummy-usr-is-merged 1')
-		echo "dummy usr-is-merged package installed -- running merged-usr essential hook" >&2
-		;;
-	'installed usrmerge '*)
-		echo "usr-is-merged package from src:usrmerge installed -- not running merged-usr essential hook" >&2
-		exit 0
-		;;
-	'not-installed  ')
-		echo "usr-is-merged was not installed in a previous hook -- not running merged-usr essential hook" >&2
-		exit 0
-		;;
-	*)
-		echo "unexpected situation for package usr-is-merged: $ver" >&2
-		exit 1
-		;;
-esac
-
-# resolve the script path using several methods in order:
-#  1. using dirname -- "$0"
-#  2. using ./hooks
-#  3. using /usr/share/mmdebstrap/hooks/
-for p in "$(dirname -- "$0")/.." ./hooks /usr/share/mmdebstrap/hooks; do
-	if [ -x "$p/merged-usr/setup00.sh" ] && [ -x "$p/merged-usr/extract00.sh" ] && [ -x "$p/merged-usr/essential00.sh" ]; then
-		"$p/merged-usr/essential00.sh" "$1"
-		exit 0
-	fi
-done
-
-echo "cannot find merged-usr hook anywhere" >&2
-exit 1

hooks/maybe-merged-usr/extract00.sh

@@ -1,37 +0,0 @@
-#!/bin/sh
-
-set -eu
-
-env --chdir="$1" APT_CONFIG="$MMDEBSTRAP_APT_CONFIG" apt-get update --error-on=any
-
-if env --chdir="$1" APT_CONFIG="$MMDEBSTRAP_APT_CONFIG" apt-cache show --no-all-versions usr-is-merged > /dev/null 2>&1; then
-	# if apt-cache exited successfully, then usr-is-merged exists either as
-	# a real or virtual package
-	if env --chdir="$1" APT_CONFIG="$MMDEBSTRAP_APT_CONFIG" apt-cache show --no-all-versions usr-is-merged 2>/dev/null | grep -q "Package: usr-is-merged"; then
-		echo "usr-is-merged found -- running merged-usr extract hook" >&2
-	else
-		# The usr-is-merged must be virtual, so assume that nothing
-		# has to be done. This is the case with Debian Trixie or later
-		# or with Ubuntu Lunar or later
-		echo "usr-is-merged found but not real -- not running merged-usr extract hook" >&2
-		exit 0
-	fi
-else
-	# if the usr-is-merged package cannot be installed with apt, do nothing
-	echo "no package providing usr-is-merged found -- not running merged-usr extract hook" >&2
-	exit 0
-fi
-
-# resolve the script path using several methods in order:
-#  1. using dirname -- "$0"
-#  2. using ./hooks
-#  3. using /usr/share/mmdebstrap/hooks/
-for p in "$(dirname -- "$0")/.." ./hooks /usr/share/mmdebstrap/hooks; do
-	if [ -x "$p/merged-usr/setup00.sh" ] && [ -x "$p/merged-usr/extract00.sh" ] && [ -x "$p/merged-usr/essential00.sh" ]; then
-		"$p/merged-usr/extract00.sh" "$1"
-		exit 0
-	fi
-done
-
-echo "cannot find merged-usr hook anywhere" >&2
-exit 1

hooks/maybe-merged-usr/setup00.sh

@@ -1,37 +0,0 @@
-#!/bin/sh
-
-set -eu
-
-env --chdir="$1" APT_CONFIG="$MMDEBSTRAP_APT_CONFIG" apt-get update --error-on=any
-
-if env --chdir="$1" APT_CONFIG="$MMDEBSTRAP_APT_CONFIG" apt-cache show --no-all-versions usr-is-merged > /dev/null 2>&1; then
-	# if apt-cache exited successfully, then usr-is-merged exists either as
-	# a real or virtual package
-	if env --chdir="$1" APT_CONFIG="$MMDEBSTRAP_APT_CONFIG" apt-cache show --no-all-versions usr-is-merged 2>/dev/null | grep -q "Package: usr-is-merged"; then
-		echo "usr-is-merged found -- running merged-usr setup hook" >&2
-	else
-		# The usr-is-merged must be virtual, so assume that nothing
-		# has to be done. This is the case with Debian Trixie or later
-		# or with Ubuntu Lunar or later
-		echo "usr-is-merged found but not real -- not running merged-usr setup hook" >&2
-		exit 0
-	fi
-else
-	# if the usr-is-merged package cannot be installed with apt, do nothing
-	echo "no package providing usr-is-merged found -- not running merged-usr setup hook" >&2
-	exit 0
-fi
-
-# resolve the script path using several methods in order:
-#  1. using dirname -- "$0"
-#  2. using ./hooks
-#  3. using /usr/share/mmdebstrap/hooks/
-for p in "$(dirname -- "$0")/.." ./hooks /usr/share/mmdebstrap/hooks; do
-	if [ -x "$p/merged-usr/setup00.sh" ] && [ -x "$p/merged-usr/extract00.sh" ] && [ -x "$p/merged-usr/essential00.sh" ]; then
-		"$p/merged-usr/setup00.sh" "$1"
-		exit 0
-	fi
-done
-
-echo "cannot find merged-usr hook anywhere" >&2
-exit 1

hooks/merged-usr/essential00.sh

@@ -2,27 +2,14 @@
 
 set -eu
 
-if [ "${MMDEBSTRAP_VERBOSITY:-1}" -ge 3 ]; then
+if [ "$MMDEBSTRAP_VERBOSITY" -ge 3 ]; then
         set -x
 fi
 
 TARGET="$1"
 
-if [ "${MMDEBSTRAP_MODE:-}" = "chrootless" ]; then
-	APT_CONFIG=$MMDEBSTRAP_APT_CONFIG apt-get --yes install \
-		-oDPkg::Chroot-Directory= \
-		-oDPkg::Options::=--force-not-root \
-		-oDPkg::Options::=--force-script-chrootless \
-		-oDPkg::Options::=--root="$TARGET" \
-		-oDPkg::Options::=--log="$TARGET/var/log/dpkg.log" \
-		usr-is-merged
-	export DPKG_ROOT="$TARGET"
-	dpkg-query --showformat '${db:Status-Status}\n' --show usr-is-merged | grep -q '^installed$'
-	dpkg-query --showformat '${Source}\n' --show usr-is-merged | grep -q '^usrmerge$'
-	dpkg --compare-versions "1" "lt" "$(dpkg-query --showformat '${Version}\n' --show usr-is-merged)"
-else
-	APT_CONFIG=$MMDEBSTRAP_APT_CONFIG apt-get --yes install usr-is-merged
-	chroot "$TARGET" dpkg-query --showformat '${db:Status-Status}\n' --show usr-is-merged | grep -q '^installed$'
-	chroot "$TARGET" dpkg-query --showformat '${Source}\n' --show usr-is-merged | grep -q '^usrmerge$'
-	dpkg --compare-versions "1" "lt" "$(chroot "$TARGET" dpkg-query --showformat '${Version}\n' --show usr-is-merged)"
-fi
+APT_CONFIG=$MMDEBSTRAP_APT_CONFIG apt-get --yes install -oDPkg::Chroot-Directory="$TARGET" usr-is-merged
+
+chroot "$TARGET" dpkg-query --showformat '${db:Status-Status}\n' --show usr-is-merged | grep -q '^installed$'
+chroot "$TARGET" dpkg-query --showformat '${Source}\n' --show usr-is-merged | grep -q '^usrmerge$'
+dpkg --compare-versions "1" "lt" "$(chroot "$TARGET" dpkg-query --showformat '${Version}\n' --show usr-is-merged)"

hooks/merged-usr/extract00.sh

@@ -1,85 +0,0 @@
-#!/bin/sh
-
-set -eu
-
-if [ "${MMDEBSTRAP_VERBOSITY:-1}" -ge 3 ]; then
-	set -x
-fi
-
-TARGET="$1"
-
-# can_usrmerge_symlink() and can_usrmerge_symlink() are
-# Copyright 2023 Helmut Grohne <helmut@subdivi.de>
-# and part of the debootstrap source in /usr/share/debootstrap/functions
-# https://salsa.debian.org/installer-team/debootstrap/-/merge_requests/96
-# https://bugs.debian.org/104989
-can_usrmerge_symlink() {
-	# Absolute symlinks can be relocated without problems.
-	test "${2#/}" = "$2" || return 0
-	while :; do
-		if test "${2#/}" != "$2"; then
-			# Handle double-slashes.
-			set -- "$1" "${2#/}"
-		elif test "${2#./}" != "$2"; then
-			# Handle ./ inside a link target.
-			set -- "$1" "${2#./}"
-		elif test "$2" = ..; then
-			# A parent directory symlink is ok if it does not
-			# cross the top level directory.
-			test "${1%/*/*}" != "$1" -a -n "${1%/*/*}"
-			return $?
-		elif test "${2#../}" != "$2"; then
-			# Symbolic link crossing / cannot be moved safely.
-			# This is prohibited by Debian Policy 10.5.
-			test "${1%/*/*}" = "$1" -o -z "${1%/*/*}" && return 1
-			set -- "${1%/*}" "${2#../}"
-		else
-			# Consider the symlink ok if its target does not
-			# contain a parent directory. When we fail here,
-			# the link target is non-minimal and doesn't happen
-			# in the archive.
-			test "${2#*/../}" = "$2"
-			return $?
-		fi
-	done
-}
-
-merge_usr_entry() {
-	# shellcheck disable=SC3043
-	local entry canon
-	canon="$TARGET/usr/${1#"$TARGET/"}"
-	test -h "$canon" &&
-		error 1 USRMERGEFAIL "cannot move %s as its destination exists as a symlink" "${1#"$TARGET"}"
-	if ! test -e "$canon"; then
-		mv "$1" "$canon"
-		return 0
-	fi
-	test -d "$1" ||
-		error 1 USRMERGEFAIL "cannot move non-directory %s as its destination exists" "${1#"$TARGET"}"
-	test -d "$canon" ||
-		error 1 USRMERGEFAIL "cannot move directory %s as its destination is not a directory" "${1#"$TARGET"}"
-	for entry in "$1/"* "$1/."*; do
-		# Some shells return . and .. on dot globs.
-		test "${entry%/.}" != "${entry%/..}" && continue
-		if test -h "$entry" && ! can_usrmerge_symlink "${entry#"$TARGET"}" "$(readlink "$entry")"; then
-			error 1 USRMERGEFAIL "cannot move relative symlink crossing top-level directory" "${entry#"$TARGET"}"
-		fi
-		# Ignore glob match failures
-		if test "${entry%'/*'}" != "${entry%'/.*'}" && ! test -e "$entry"; then
-			continue
-		fi
-		merge_usr_entry "$entry"
-	done
-	rmdir "$1"
-}
-
-# This is list includes all possible multilib directories. It must be
-# updated when new multilib directories are being added. Hopefully,
-# all new architectures use multiarch instead, so we never get to
-# update this.
-for dir in bin lib lib32 lib64 libo32 libx32 sbin; do
-	test -h "$TARGET/$dir" && continue
-	test -e "$TARGET/$dir" || continue
-	merge_usr_entry "$TARGET/$dir"
-	ln -s "usr/$dir" "$TARGET/$dir"
-done

hooks/merged-usr/setup00.sh

@@ -41,12 +41,44 @@
 
 set -eu
 
-if [ "${MMDEBSTRAP_VERBOSITY:-1}" -ge 3 ]; then
+if [ "$MMDEBSTRAP_VERBOSITY" -ge 3 ]; then
 	set -x
 fi
 
 TARGET="$1"
 
+ARCH=$(dpkg --print-architecture)
+eval "$(APT_CONFIG="$MMDEBSTRAP_APT_CONFIG" apt-config shell ARCH Apt::Architecture)"
+
+if [ -e /usr/share/debootstrap/functions ]; then
+	. /usr/share/debootstrap/functions
+	doing_variant () { [ $1 != "buildd" ]; }
+	MERGED_USR="yes"
+	setup_merged_usr
+else
+	link_dir=""
+	case $ARCH in
+	    hurd-*) exit 0;;
+	    amd64) link_dir="lib32 lib64 libx32" ;;
+	    i386) link_dir="lib64 libx32" ;;
+	    mips|mipsel) link_dir="lib32 lib64" ;;
+	    mips64*|mipsn32*) link_dir="lib32 lib64 libo32" ;;
+	    powerpc) link_dir="lib64" ;;
+	    ppc64) link_dir="lib32 lib64" ;;
+	    ppc64el) link_dir="lib64" ;;
+	    s390x) link_dir="lib32" ;;
+	    sparc) link_dir="lib64" ;;
+	    sparc64) link_dir="lib32 lib64" ;;
+	    x32) link_dir="lib32 lib64 libx32" ;;
+	esac
+	link_dir="bin sbin lib $link_dir"
+
+	for dir in $link_dir; do
+		ln -s usr/"$dir" "$TARGET/$dir"
+		mkdir -p "$TARGET/usr/$dir"
+	done
+fi
+
 # now install an empty "usr-is-merged" package to avoid installing the
 # usrmerge package on this system even after init-system-helpers starts
 # depending on "usrmerge | usr-is-merged".

hooks/no-merged-usr/essential00.sh

@@ -1 +0,0 @@
-../merged-usr/essential00.sh

hooks/no-merged-usr/essential00.sh

@@ -0,0 +1,15 @@
+#!/bin/sh
+
+set -eu
+
+if [ "$MMDEBSTRAP_VERBOSITY" -ge 3 ]; then
+        set -x
+fi
+
+TARGET="$1"
+
+APT_CONFIG=$MMDEBSTRAP_APT_CONFIG apt-get --yes install -oDPkg::Chroot-Directory="$TARGET" usr-is-merged
+
+chroot "$TARGET" dpkg-query --showformat '${db:Status-Status}\n' --show usr-is-merged | grep -q '^installed$'
+chroot "$TARGET" dpkg-query --showformat '${Source}\n' --show usr-is-merged | grep -q '^usrmerge$'
+dpkg --compare-versions "1" "lt" "$(chroot "$TARGET" dpkg-query --showformat '${Version}\n' --show usr-is-merged)"

hooks/no-merged-usr/setup00.sh

@@ -11,14 +11,13 @@
 
 set -eu
 
-if [ "${MMDEBSTRAP_VERBOSITY:-1}" -ge 3 ]; then
+if [ "$MMDEBSTRAP_VERBOSITY" -ge 3 ]; then
         set -x
 fi
 
 TARGET="$1"
 
 echo "Warning: starting with Debian 12 (Bookworm), systems without merged-/usr are not supported anymore" >&2
-echo "Warning: starting with Debian 13 (Trixie), merged-/usr symlinks are shipped by packages in the essential-set making this hook ineffective" >&2
 
 echo "this system will not be supported in the future" > "$TARGET/etc/unsupported-skip-usrmerge-conversion"
 

ldconfig.fakechroot

@@ -106,24 +106,10 @@ def main():
     for d in get_libdirs(chroot, [chroot / "etc" / "ld.so.conf"]):
         make_relative(d)
 
-    rootarg = chroot
-    argv = sys.argv[1:]
-    for arg in sys.argv[1:]:
-        if arg == "-r":
-            rootarg = None
-        elif rootarg is None:
-            argpath = Path(arg)
-            if argpath.is_absolute():
-                rootarg = chroot / argpath.relative_to("/")
-            else:
-                rootarg = Path.cwd() / argpath
-    if rootarg is None:
-        rootarg = chroot
-
     # we add any additional arguments before "-r" such that any other "-r"
     # option will be overwritten by the one we set
     subprocess.check_call(
-        [chroot / "sbin" / "ldconfig"] + sys.argv[1:] + ["-r", rootarg]
+        [chroot / "sbin" / "ldconfig"] + sys.argv[1:] + ["-r", chroot]
     )
 
 

make_mirror.sh

@@ -11,7 +11,7 @@ set -eu
 
 deletecache() {
 	dir="$1"
-  echo "running deletecache $dir" >&2
+	echo "running deletecache $dir">&2
 	if [ ! -e "$dir" ]; then
 		return
 	fi
@@ -20,10 +20,7 @@ deletecache() {
 		return 1
 	fi
 	# be very careful with removing the old directory
-  # experimental is pulled in with USE_HOST_APT_CONFIG=yes on debci
-  # when testing a package from experimental
-  for dist in oldstable stable testing unstable experimental; do
-    # deleting artifacts from test "debootstrap"
+	for dist in oldstable stable testing unstable; do
 		for variant in minbase buildd -; do
 			if [ -e "$dir/debian-$dist-$variant.tar" ]; then
 				rm "$dir/debian-$dist-$variant.tar"
@@ -31,24 +28,12 @@ deletecache() {
 				echo "does not exist: $dir/debian-$dist-$variant.tar" >&2
 			fi
 		done
-    # deleting artifacts from test "mmdebstrap"
-    for variant in essential apt minbase buildd - standard; do
-      for format in tar ext2 ext4 squashfs; do
-        if [ -e "$dir/mmdebstrap-$dist-$variant.$format" ]; then
-          # attempt to delete for all dists because DEFAULT_DIST might've been different the last time
-          rm "$dir/mmdebstrap-$dist-$variant.$format"
-        elif [ "$dist" = "$DEFAULT_DIST" ]; then
-          # only warn about non-existance when it's expected to exist
-          echo "does not exist: $dir/mmdebstrap-$dist-$variant.$format" >&2
-        fi
-      done
-    done
 		if [ -e "$dir/debian/dists/$dist" ]; then
 			rm --one-file-system --recursive "$dir/debian/dists/$dist"
 		else
 			echo "does not exist: $dir/debian/dists/$dist" >&2
 		fi
-    case "$dist" in oldstable | stable)
+		case "$dist" in oldstable|stable)
 			if [ -e "$dir/debian/dists/$dist-updates" ]; then
 				rm --one-file-system --recursive "$dir/debian/dists/$dist-updates"
 			else
@@ -56,7 +41,15 @@ deletecache() {
 			fi
 			;;
 		esac
-    case "$dist" in oldstable | stable)
+		case "$dist" in
+			oldstable)
+				if [ -e "$dir/debian-security/dists/$dist/updates" ]; then
+					rm --one-file-system --recursive "$dir/debian-security/dists/$dist/updates"
+				else
+					echo "does not exist: $dir/debian-security/dists/$dist/updates" >&2
+				fi
+				;;
+			stable)
 				if [ -e "$dir/debian-security/dists/$dist-security" ]; then
 					rm --one-file-system --recursive "$dir/debian-security/dists/$dist-security"
 				else
@@ -65,21 +58,16 @@ deletecache() {
 				;;
 		esac
 	done
-  for f in "$dir/debian-"*.ext4; do
-    if [ -e "$f" ]; then
-      rm --one-file-system "$f"
-    fi
-  done
-  # on i386 and amd64, the intel-microcode and amd64-microcode packages
-  # from non-free-firwame get pulled in because they are
-  # priority:standard with USE_HOST_APT_CONFIG=yes
-  for c in main non-free-firmware; do
-    if [ -e "$dir/debian/pool/$c" ]; then
-      rm --one-file-system --recursive "$dir/debian/pool/$c"
+	if [ -e $dir/debian-*.qcow ]; then
+		rm --one-file-system "$dir"/debian-*.qcow
 	else
-      echo "does not exist: $dir/debian/pool/$c" >&2
+		echo "does not exist: $dir/debian-*.qcow" >&2
+	fi
+	if [ -e "$dir/debian/pool/main" ]; then
+		rm --one-file-system --recursive "$dir/debian/pool/main"
+	else
+		echo "does not exist: $dir/debian/pool/main" >&2
 	fi
-  done
 	if [ -e "$dir/debian-security/pool/updates/main" ]; then
 		rm --one-file-system --recursive "$dir/debian-security/pool/updates/main"
 	else
@@ -108,6 +96,72 @@ cleanup_newcachedir() {
 	deletecache "$newcachedir"
 }
 
+get_oldaptnames() {
+	if [ ! -e "$1/$2" ]; then
+		return
+	fi
+	xz -dc "$1/$2" \
+		| grep-dctrl --no-field-names --show-field=Package,Version,Architecture,Filename '' \
+		| paste -sd "    \n" \
+		| while read name ver arch fname; do
+			if [ ! -e "$1/$fname" ]; then
+				continue
+			fi
+			# apt stores deb files with the colon encoded as %3a while
+			# mirrors do not contain the epoch at all #645895
+			case "$ver" in *:*) ver="${ver%%:*}%3a${ver#*:}";; esac
+			aptname="$rootdir/var/cache/apt/archives/${name}_${ver}_${arch}.deb"
+			# we have to cp and not mv because other
+			# distributions might still need this file
+			# we have to cp and not symlink because apt
+			# doesn't recognize symlinks
+			cp --link "$1/$fname" "$aptname"
+			echo "$aptname"
+		done
+}
+
+get_newaptnames() {
+	if [ ! -e "$1/$2" ]; then
+		return
+	fi
+	# skip empty files by trying to uncompress the first byte of the payload
+	if [ "$(xz -dc "$1/$2" | head -c1 | wc -c)" -eq 0 ]; then
+		return
+	fi
+	xz -dc "$1/$2" \
+		| grep-dctrl --no-field-names --show-field=Package,Version,Architecture,Filename,SHA256 '' \
+		| paste -sd "     \n" \
+		| while read name ver arch fname hash; do
+			# sanity check for the hash because sometimes the
+			# archive switches the hash algorithm
+			if [ "${#hash}" -ne 64 ]; then
+				echo "expected hash length of 64 but got ${#hash} for: $hash" >&2
+				exit 1
+			fi
+			dir="${fname%/*}"
+			# apt stores deb files with the colon encoded as %3a while
+			# mirrors do not contain the epoch at all #645895
+			case "$ver" in *:*) ver="${ver%%:*}%3a${ver#*:}";; esac
+			aptname="$rootdir/var/cache/apt/archives/${name}_${ver}_${arch}.deb"
+			if [ -e "$aptname" ]; then
+				# make sure that we found the right file by checking its hash
+				echo "$hash  $aptname" | sha256sum --check >&2
+				mkdir -p "$1/$dir"
+				# since we move hardlinks around, the same hardlink might've been
+				# moved already into the same place by another distribution.
+				# mv(1) refuses to copy A to B if both are hardlinks of each other.
+				if [ "$aptname" -ef "$1/$fname" ]; then
+					# both files are already the same so we just need to
+					# delete the source
+					rm "$aptname"
+				else
+					mv "$aptname" "$1/$fname"
+				fi
+				echo "$aptname"
+			fi
+		done
+}
+
 cleanupapt() {
 	echo "running cleanupapt" >&2
 	if [ ! -e "$rootdir" ]; then
@@ -121,11 +175,10 @@ cleanupapt() {
 		"$rootdir/var/lib/dpkg/status" \
 		"$rootdir/var/lib/dpkg/lock-frontend" \
 		"$rootdir/var/lib/dpkg/lock" \
-    "$rootdir/var/lib/apt/lists/lock" \
 		"$rootdir/etc/apt/apt.conf" \
-    "$rootdir/etc/apt/sources.list.d/"* \
-    "$rootdir/etc/apt/preferences.d/"* \
 		"$rootdir/etc/apt/sources.list" \
+		"$rootdir/oldaptnames" \
+		"$rootdir/newaptnames" \
 		"$rootdir/var/cache/apt/archives/lock"; do
 		if [ ! -e "$f" ]; then
 			echo "does not exist: $f" >&2
@@ -154,16 +207,16 @@ update_cache() (
 	# we only set this trap here and overwrite the previous trap, because
 	# the update_cache function is run as part of a pipe and thus in its
 	# own process which will EXIT after it finished
-  trap 'kill "$PROXYPID" || :;cleanupapt' EXIT INT TERM
+	trap "cleanupapt" EXIT INT TERM
 
 	for p in /etc/apt/apt.conf.d /etc/apt/sources.list.d /etc/apt/preferences.d /var/cache/apt/archives /var/lib/apt/lists/partial /var/lib/dpkg; do
 		mkdir -p "$rootdir/$p"
 	done
 
 	# read sources.list content from stdin
-  cat >"$rootdir/etc/apt/sources.list"
+	cat > "$rootdir/etc/apt/sources.list"
 
-  cat <<END >"$rootdir/etc/apt/apt.conf"
+	cat << END > "$rootdir/etc/apt/apt.conf"
 Apt::Architecture "$nativearch";
 Apt::Architectures "$nativearch";
 Dir::Etc "$rootdir/etc/apt";
@@ -174,49 +227,34 @@ Apt::Get::Download-Only true;
 Acquire::Languages "none";
 Dir::Etc::Trusted "/etc/apt/trusted.gpg";
 Dir::Etc::TrustedParts "/etc/apt/trusted.gpg.d";
-Acquire::http::Proxy "http://127.0.0.1:8080/";
+Acquire::http::Dl-Limit "1000";
+Acquire::https::Dl-Limit "1000";
+Acquire::Retries "5";
 END
 
-  : >"$rootdir/var/lib/dpkg/status"
+	> "$rootdir/var/lib/dpkg/status"
 
-  if [ "$dist" = "$DEFAULT_DIST" ] && [ "$nativearch" = "$HOSTARCH" ] && [ "$USE_HOST_APT_CONFIG" = "yes" ]; then
-    # we append sources and settings instead of overwriting after
-    # an empty line
-    for f in /etc/apt/sources.list /etc/apt/sources.list.d/*; do
-      [ -e "$f" ] || continue
-      [ -e "$rootdir/$f" ] && echo >>"$rootdir/$f"
-      # Filter out file:// repositories as they are added
-      # to each mmdebstrap call verbatim by
-      # debian/tests/copy_host_apt_config
-      # Also filter out all mirrors that are not of suite
-      # $DEFAULT_DIST, except experimental if the suite
-      # is unstable. This prevents packages from
-      # unstable entering a testing mirror.
-      if [ "$dist" = unstable ]; then
-        grep -v ' file://' "$f" \
-          | grep -E " (unstable|experimental) " \
-            >>"$rootdir/$f" || :
-      else
-        grep -v ' file://' "$f" \
-          | grep " $DEFAULT_DIST " \
-            >>"$rootdir/$f" || :
-      fi
-    done
-    for f in /etc/apt/preferences.d/*; do
-      [ -e "$f" ] || continue
-      [ -e "$rootdir/$f" ] && echo >>"$rootdir/$f"
-      cat "$f" >>"$rootdir/$f"
-    done
-  fi
+	APT_CONFIG="$rootdir/etc/apt/apt.conf" apt-get update
 
-  echo "creating mirror for $dist" >&2
-  for f in /etc/apt/sources.list /etc/apt/sources.list.d/* /etc/apt/preferences.d/*; do
-    [ -e "$rootdir/$f" ] || continue
-    echo "contents of $f:" >&2
-    cat "$rootdir/$f" >&2
-  done
-
-  APT_CONFIG="$rootdir/etc/apt/apt.conf" apt-get update --error-on=any
+	# before downloading packages and before replacing the old Packages
+	# file, copy all old *.deb packages from the mirror to
+	# /var/cache/apt/archives so that apt will not re-download *.deb
+	# packages that we already have
+	{
+		get_oldaptnames "$oldmirrordir" "dists/$dist/main/binary-$nativearch/Packages.xz"
+		case "$dist" in oldstable|stable)
+			get_oldaptnames "$oldmirrordir" "dists/$dist-updates/main/binary-$nativearch/Packages.xz"
+			;;
+		esac
+		case "$dist" in
+			oldstable)
+				get_oldaptnames "$oldcachedir/debian-security" "dists/$dist/updates/main/binary-$nativearch/Packages.xz"
+				;;
+			stable)
+				get_oldaptnames "$oldcachedir/debian-security" "dists/$dist-security/main/binary-$nativearch/Packages.xz"
+				;;
+		esac
+	} | sort -u > "$rootdir/oldaptnames"
 
 	pkgs=$(APT_CONFIG="$rootdir/etc/apt/apt.conf" apt-get indextargets \
 		--format '$(FILENAME)' 'Created-By: Packages' "Architecture: $nativearch" \
@@ -226,24 +264,84 @@ END
 			--or --field=Priority important --or --field=Priority standard \
 			\))
 
-  pkgs="$pkgs build-essential busybox gpg eatmydata fakechroot fakeroot"
+	pkgs="$(echo $pkgs) build-essential busybox gpg eatmydata"
 
 	# we need usr-is-merged to simulate debootstrap behaviour for all dists
 	# starting from Debian 12 (Bullseye)
 	case "$dist" in
-    oldstable) : ;;
-    *) pkgs="$pkgs usr-is-merged usrmerge" ;;
+		oldstable|stable) : ;;
+		*) pkgs="$pkgs usr-is-merged" ;;
 	esac
 
-  # shellcheck disable=SC2086
-  APT_CONFIG="$rootdir/etc/apt/apt.conf" apt-get --yes install $pkgs \
-    || APT_CONFIG="$rootdir/etc/apt/apt.conf" apt-get --yes install \
-      -oDebug::pkgProblemResolver=true -oDebug::pkgDepCache::Marker=1 \
-      -oDebug::pkgDepCache::AutoInstall=1 \
-      $pkgs
+	APT_CONFIG="$rootdir/etc/apt/apt.conf" apt-get --yes install $pkgs
+
+	# to be able to also test gpg verification, we need to create a mirror
+	mkdir -p "$newmirrordir/dists/$dist/main/binary-$nativearch/"
+	curl --location "$mirror/dists/$dist/Release" > "$newmirrordir/dists/$dist/Release"
+	curl --location "$mirror/dists/$dist/Release.gpg" > "$newmirrordir/dists/$dist/Release.gpg"
+	curl --location "$mirror/dists/$dist/main/binary-$nativearch/Packages.xz" > "$newmirrordir/dists/$dist/main/binary-$nativearch/Packages.xz"
+	codename=$(awk '/^Codename: / { print $2; }' < "$newmirrordir/dists/$dist/Release")
+	[ -L "$newmirrordir/dists/$codename" ] || ln -s "$dist" "$newmirrordir/dists/$codename"
+	case "$dist" in oldstable|stable)
+		mkdir -p "$newmirrordir/dists/$dist-updates/main/binary-$nativearch/"
+		curl --location "$mirror/dists/$dist-updates/Release" > "$newmirrordir/dists/$dist-updates/Release"
+		curl --location "$mirror/dists/$dist-updates/Release.gpg" > "$newmirrordir/dists/$dist-updates/Release.gpg"
+		curl --location "$mirror/dists/$dist-updates/main/binary-$nativearch/Packages.xz" > "$newmirrordir/dists/$dist-updates/main/binary-$nativearch/Packages.xz"
+		[ -L "$newmirrordir/dists/$codename-updates" ] || ln -s "$dist-updates" "$newmirrordir/dists/$codename-updates"
+		;;
+	esac
+	case "$dist" in
+		oldstable)
+			mkdir -p "$newcachedir/debian-security/dists/$dist/updates/main/binary-$nativearch/"
+			curl --location "$security_mirror/dists/$dist/updates/Release" > "$newcachedir/debian-security/dists/$dist/updates/Release"
+			curl --location "$security_mirror/dists/$dist/updates/Release.gpg" > "$newcachedir/debian-security/dists/$dist/updates/Release.gpg"
+			curl --location "$security_mirror/dists/$dist/updates/main/binary-$nativearch/Packages.xz" > "$newcachedir/debian-security/dists/$dist/updates/main/binary-$nativearch/Packages.xz"
+			;;
+		stable)
+			mkdir -p "$newcachedir/debian-security/dists/$dist-security/main/binary-$nativearch/"
+			curl --location "$security_mirror/dists/$dist-security/Release" > "$newcachedir/debian-security/dists/$dist-security/Release"
+			curl --location "$security_mirror/dists/$dist-security/Release.gpg" > "$newcachedir/debian-security/dists/$dist-security/Release.gpg"
+			curl --location "$security_mirror/dists/$dist-security/main/binary-$nativearch/Packages.xz" > "$newcachedir/debian-security/dists/$dist-security/main/binary-$nativearch/Packages.xz"
+			[ -L "$newcachedir/debian-security/dists/$codename-security" ] || ln -s "$dist-security" "$newcachedir/debian-security/dists/$codename-security"
+			;;
+	esac
+
+	# the deb files downloaded by apt must be moved to their right locations in the
+	# pool directory
+	#
+	# Instead of parsing the Packages file, we could also attempt to move the deb
+	# files ourselves to the appropriate pool directories. But that approach
+	# requires re-creating the heuristic by which the directory is chosen, requires
+	# stripping the epoch from the filename and will break once mirrors change.
+	# This way, it doesn't matter where the mirror ends up storing the package.
+	{
+		get_newaptnames "$newmirrordir" "dists/$dist/main/binary-$nativearch/Packages.xz";
+		case "$dist" in oldstable|stable)
+			get_newaptnames "$newmirrordir" "dists/$dist-updates/main/binary-$nativearch/Packages.xz"
+			;;
+		esac
+		case "$dist" in
+			oldstable)
+				get_newaptnames "$newcachedir/debian-security" "dists/$dist/updates/main/binary-$nativearch/Packages.xz"
+				;;
+			stable)
+				get_newaptnames "$newcachedir/debian-security" "dists/$dist-security/main/binary-$nativearch/Packages.xz"
+				;;
+		esac
+	} | sort -u > "$rootdir/newaptnames"
 
 	rm "$rootdir/var/cache/apt/archives/lock"
 	rmdir "$rootdir/var/cache/apt/archives/partial"
+	# remove all packages that were in the old Packages file but not in the
+	# new one anymore
+	comm -23 "$rootdir/oldaptnames" "$rootdir/newaptnames" | xargs --delimiter="\n" --no-run-if-empty rm
+	# now the apt cache should be empty
+	if [ ! -z "$(ls -1qA "$rootdir/var/cache/apt/archives/")" ]; then
+		echo "$rootdir/var/cache/apt/archives not empty:"
+		ls -la "$rootdir/var/cache/apt/archives/"
+		exit 1
+	fi
+
 	APT_CONFIG="$rootdir/etc/apt/apt.conf" apt-get --option Dir::Etc::SourceList=/dev/null update
 	APT_CONFIG="$rootdir/etc/apt/apt.conf" apt-get clean
 
@@ -254,17 +352,6 @@ END
 	trap "-" EXIT INT TERM
 )
 
-check_proxy_running() {
-  if timeout 1 bash -c 'exec 3<>/dev/tcp/127.0.0.1/8080 && printf "GET http://deb.debian.org/debian/dists/'"$DEFAULT_DIST"'/InRelease HTTP/1.1\nHost: deb.debian.org\n\n" >&3 && grep "Suite: '"$DEFAULT_DIST"'" <&3 >/dev/null' 2>/dev/null; then
-    return 0
-  elif timeout 1 env http_proxy="http://127.0.0.1:8080/" wget --quiet -O - "http://deb.debian.org/debian/dists/$DEFAULT_DIST/InRelease" | grep "Suite: $DEFAULT_DIST" >/dev/null; then
-    return 0
-  elif timeout 1 curl --proxy "http://127.0.0.1:8080/" --silent "http://deb.debian.org/debian/dists/$DEFAULT_DIST/InRelease" | grep "Suite: $DEFAULT_DIST" >/dev/null; then
-    return 0
-  fi
-  return 1
-}
-
 if [ -e "./shared/cache.A" ] && [ -e "./shared/cache.B" ]; then
 	echo "both ./shared/cache.A and ./shared/cache.B exist" >&2
 	echo "was a former run of the script aborted?" >&2
@@ -272,22 +359,16 @@ if [ -e "./shared/cache.A" ] && [ -e "./shared/cache.B" ]; then
 		echo "cache symlink points to $(readlink ./shared/cache)" >&2
 		case "$(readlink ./shared/cache)" in
 			cache.A)
-        echo "removing ./shared/cache.B" >&2
-        rm -r ./shared/cache.B
+				echo "maybe rm -r ./shared/cache.B" >&2
 				;;
 			cache.B)
-        echo "removing ./shared/cache.A" >&2
-        rm -r ./shared/cache.A
+				echo "maybe rm -r ./shared/cache.A" >&2
 				;;
 			*)
 				echo "unexpected" >&2
-        exit 1
-        ;;
 		esac
-  else
-    echo "./shared/cache doesn't exist" >&2
-    exit 1
 	fi
+	exit 1
 fi
 
 if [ -e "./shared/cache.A" ]; then
@@ -309,72 +390,37 @@ security_mirror="http://security.debian.org/debian-security"
 components=main
 
 : "${DEFAULT_DIST:=unstable}"
-: "${ONLY_DEFAULT_DIST:=no}"
-: "${ONLY_HOSTARCH:=no}"
 : "${HAVE_QEMU:=yes}"
 : "${RUN_MA_SAME_TESTS:=yes}"
+: "${HAVE_PROOT:=yes}"
 # by default, use the mmdebstrap executable in the current directory
 : "${CMD:=./mmdebstrap}"
-: "${USE_HOST_APT_CONFIG:=no}"
-: "${FORCE_UPDATE:=no}"
 
-if [ "$FORCE_UPDATE" != "yes" ] && [ -e "$oldmirrordir/dists/$DEFAULT_DIST/InRelease" ]; then
-  http_code=$(curl --output /dev/null --silent --location --head --time-cond "$oldmirrordir/dists/$DEFAULT_DIST/InRelease" --write-out '%{http_code}' "$mirror/dists/$DEFAULT_DIST/InRelease")
+if [ -e "$oldmirrordir/dists/$DEFAULT_DIST/Release" ]; then
+	http_code=$(curl --output /dev/null --silent --location --head --time-cond "$oldmirrordir/dists/$DEFAULT_DIST/Release" --write-out '%{http_code}' "$mirror/dists/$DEFAULT_DIST/Release")
 	case "$http_code" in
 		200) ;; # need update
-    304)
-      echo up-to-date
-      exit 0
-      ;;
-    *)
-      echo "unexpected status: $http_code"
-      exit 1
-      ;;
+		304) echo up-to-date; exit 0;;
+		*) echo "unexpected status: $http_code"; exit 1;;
 	esac
 fi
 
-./caching_proxy.py "$oldcachedir" "$newcachedir" &
-PROXYPID=$!
-trap 'kill "$PROXYPID" || :' EXIT INT TERM
-
-for i in $(seq 10); do
-  check_proxy_running && break
-  sleep 1
-done
-if [ ! -s "$newmirrordir/dists/$DEFAULT_DIST/InRelease" ]; then
-  echo "failed to start proxy" >&2
-  kill $PROXYPID
-  exit 1
-fi
-
-trap 'kill "$PROXYPID" || :;cleanup_newcachedir' EXIT INT TERM
+trap "cleanup_newcachedir" EXIT INT TERM
 
 mkdir -p "$newcachedir"
 touch "$newcachedir/mmdebstrapcache"
 
 HOSTARCH=$(dpkg --print-architecture)
-arches="$HOSTARCH"
 if [ "$HOSTARCH" = amd64 ]; then
-  arches="$arches arm64 i386"
-elif [ "$HOSTARCH" = arm64 ]; then
-  arches="$arches amd64 armhf"
+	arches="amd64 arm64 i386"
+else
+	arches="$HOSTARCH"
 fi
 
-# we need the split_inline_sig() function
-# shellcheck disable=SC1091
-. /usr/share/debootstrap/functions
-
-for dist in oldstable stable testing unstable; do
-  for nativearch in $arches; do
+for nativearch in $arches; do
+	for dist in oldstable stable testing unstable; do
 		# non-host architectures are only downloaded for $DEFAULT_DIST
-    if [ "$nativearch" != "$HOSTARCH" ] && [ "$DEFAULT_DIST" != "$dist" ]; then
-      continue
-    fi
-    # if ONLY_DEFAULT_DIST is set, only download DEFAULT_DIST
-    if [ "$ONLY_DEFAULT_DIST" = "yes" ] && [ "$DEFAULT_DIST" != "$dist" ]; then
-      continue
-    fi
-    if [ "$ONLY_HOSTARCH" = "yes" ] && [ "$nativearch" != "$HOSTARCH" ]; then
+		if [ $nativearch != $HOSTARCH ] && [ $DEFAULT_DIST != $dist ]; then
 			continue
 		fi
 		# we need a first pass without updates and security patches
@@ -383,8 +429,16 @@ for dist in oldstable stable testing unstable; do
 		echo "deb [arch=$nativearch] $mirror $dist $components" | update_cache "$dist" "$nativearch"
 		# we need to include the base mirror again or otherwise
 		# packages like build-essential will be missing
-    case "$dist" in oldstable | stable)
-      cat <<END | update_cache "$dist" "$nativearch"
+		case "$dist" in
+			oldstable)
+				cat << END | update_cache "$dist" "$nativearch"
+deb [arch=$nativearch] $mirror $dist $components
+deb [arch=$nativearch] $mirror $dist-updates main
+deb [arch=$nativearch] $security_mirror $dist/updates main
+END
+				;;
+			stable)
+				cat << END | update_cache "$dist" "$nativearch"
 deb [arch=$nativearch] $mirror $dist $components
 deb [arch=$nativearch] $mirror $dist-updates main
 deb [arch=$nativearch] $security_mirror $dist-security main
@@ -392,20 +446,8 @@ END
 				;;
 		esac
 	done
-  codename=$(awk '/^Codename: / { print $2; }' <"$newmirrordir/dists/$dist/InRelease")
-  ln -s "$dist" "$newmirrordir/dists/$codename"
-
-  # split the InRelease file into Release and Release.gpg not because apt
-  # or debootstrap need it that way but because grep-dctrl does
-  split_inline_sig \
-    "$newmirrordir/dists/$dist/InRelease" \
-    "$newmirrordir/dists/$dist/Release" \
-    "$newmirrordir/dists/$dist/Release.gpg"
-  touch --reference="$newmirrordir/dists/$dist/InRelease" "$newmirrordir/dists/$dist/Release" "$newmirrordir/dists/$dist/Release.gpg"
 done
 
-kill $PROXYPID
-
 # Create some symlinks so that we can trick apt into accepting multiple apt
 # lines that point to the same repository but look different. This is to
 # avoid the warning:
@@ -423,7 +465,12 @@ cleanuptmpdir() {
 	if [ ! -e "$tmpdir" ]; then
 		return
 	fi
-  for f in "$tmpdir/worker.sh" "$tmpdir/mmdebstrap.service"; do
+	for f in "$tmpdir/extlinux.conf" \
+		"$tmpdir/worker.sh" \
+		"$tmpdir/mini-httpd" "$tmpdir/hosts" \
+		"$tmpdir/debian-chroot.tar" \
+		"$tmpdir/mmdebstrap.service" \
+		"$tmpdir/debian-$DEFAULT_DIST.img"; do
 		if [ ! -e "$f" ]; then
 			echo "does not exist: $f" >&2
 			continue
@@ -433,51 +480,76 @@ cleanuptmpdir() {
 	rmdir "$tmpdir"
 }
 
-SOURCE_DATE_EPOCH="$(date --date="$(grep-dctrl -s Date -n '' "$newmirrordir/dists/$DEFAULT_DIST/Release")" +%s)"
-export SOURCE_DATE_EPOCH
+export SOURCE_DATE_EPOCH=$(date --date="$(grep-dctrl -s Date -n '' "$newmirrordir/dists/$DEFAULT_DIST/Release")" +%s)
 
 if [ "$HAVE_QEMU" = "yes" ]; then
-  # we use the caching proxy again when building the qemu image
-  #  - we can re-use the packages that were already downloaded earlier
-  #  - we make sure that the qemu image uses the same Release file even
-  #    if a mirror push happened between now and earlier
-  #  - we avoid polluting the mirror with the additional packages by
-  #    using --readonly
-  ./caching_proxy.py --readonly "$oldcachedir" "$newcachedir" &
-  PROXYPID=$!
-
-  for i in $(seq 10); do
-    check_proxy_running && break
-    sleep 1
-  done
-  if [ ! -s "$newmirrordir/dists/$DEFAULT_DIST/InRelease" ]; then
-    echo "failed to start proxy" >&2
-    kill $PROXYPID
+	case "$HOSTARCH" in
+		amd64|i386)
+			# okay
+			;;
+		*)
+			echo "qemu support is only available on amd64 and i386" >&2
+			echo "because syslinux is only available on those arches" >&2
 			exit 1
-  fi
+			;;
+	esac
 
+	# We must not use any --dpkgopt here because any dpkg options still
+	# leak into the chroot with chrootless mode.
+	# We do not use our own package cache here because
+	#   - it doesn't (and shouldn't) contain the extra packages
+	#   - it doesn't matter if the base system is from a different mirror timestamp
+	# procps is needed for /sbin/sysctl
 	tmpdir="$(mktemp -d)"
-  trap 'kill "$PROXYPID" || :;cleanuptmpdir; cleanup_newcachedir' EXIT INT TERM
+	trap "cleanuptmpdir; cleanup_newcachedir" EXIT INT TERM
 
-  pkgs=perl-doc,systemd-sysv,perl,arch-test,fakechroot,fakeroot,mount,uidmap,qemu-user-binfmt,dpkg-dev,mini-httpd,libdevel-cover-perl,libtemplate-perl,debootstrap,procps,apt-cudf,aspcud,python3,libcap2-bin,gpg,debootstrap,distro-info-data,iproute2,ubuntu-keyring,apt-utils,squashfs-tools-ng,genext2fs,linux-image-generic,passwd,e2fsprogs,uuid-runtime
+	pkgs=perl-doc,systemd-sysv,perl,arch-test,fakechroot,fakeroot,mount,uidmap,qemu-user-static,binfmt-support,qemu-user,dpkg-dev,mini-httpd,libdevel-cover-perl,libtemplate-perl,debootstrap,procps,apt-cudf,aspcud,python3,libcap2-bin,gpg,debootstrap,distro-info-data,iproute2,ubuntu-keyring,apt-utils
+	if [ "$DEFAULT_DIST" != "oldstable" ]; then
+		pkgs="$pkgs,squashfs-tools-ng,genext2fs"
+	fi
+	if [ "$HAVE_PROOT" = "yes" ]; then
+		pkgs="$pkgs,proot"
+	fi
 	if [ ! -e ./mmdebstrap ]; then
 		pkgs="$pkgs,mmdebstrap"
 	fi
-  arches=$HOSTARCH
-  if [ "$RUN_MA_SAME_TESTS" = "yes" ]; then
 	case "$HOSTARCH" in
-      amd64)
-        arches=amd64,arm64
-        pkgs="$pkgs,libfakechroot:arm64,libfakeroot:arm64"
+		amd64|arm64)
+			pkgs="$pkgs,linux-image-$HOSTARCH"
 			;;
-      arm64)
-        arches=arm64,amd64
-        pkgs="$pkgs,libfakechroot:amd64,libfakeroot:amd64"
+		i386)
+			pkgs="$pkgs,linux-image-686"
+			;;
+		ppc64el)
+			pkgs="$pkgs,linux-image-powerpc64le"
+			;;
+		*)
+			echo "no kernel image for $HOSTARCH" >&2
+			exit 1
 			;;
 	esac
+	if [ "$HOSTARCH" = amd64 ] && [ "$RUN_MA_SAME_TESTS" = "yes" ]; then
+		arches=amd64,arm64
+		pkgs="$pkgs,libfakechroot:arm64,libfakeroot:arm64"
+	else
+		arches=$HOSTARCH
 	fi
+	$CMD --variant=apt --architectures=$arches --include="$pkgs" \
+		--aptopt='Acquire::http::Dl-Limit "1000"' \
+		--aptopt='Acquire::https::Dl-Limit "1000"' \
+		--aptopt='Acquire::Retries "5"' \
+		$DEFAULT_DIST - "$mirror" > "$tmpdir/debian-chroot.tar"
 
-  cat <<END >"$tmpdir/mmdebstrap.service"
+	cat << END > "$tmpdir/extlinux.conf"
+default linux
+timeout 0
+
+label linux
+kernel /vmlinuz
+append initrd=/initrd.img root=/dev/vda1 rw console=ttyS0,115200
+serial 0 115200
+END
+	cat << END > "$tmpdir/mmdebstrap.service"
 [Unit]
 Description=mmdebstrap worker script
 
@@ -496,15 +568,13 @@ END
 	# filesystem that doesn't support ownership information at all and a umask that
 	# gives read/write access to everybody.
 	# https://github.com/pjcj/Devel--Cover/issues/223
-  cat <<'END' >"$tmpdir/worker.sh"
+	cat << 'END' > "$tmpdir/worker.sh"
 #!/bin/sh
 echo 'root:root' | chpasswd
 mount -t 9p -o trans=virtio,access=any,msize=128k mmdebstrap /mnt
 # need to restart mini-httpd because we mounted different content into www-root
 systemctl restart mini-httpd
 
-ip link set enp0s1 down || :
-
 handler () {
 	while IFS= read -r line || [ -n "$line" ]; do
 		printf "%s %s: %s\n" "$(date -u -d "0 $(date +%s.%3N) seconds - $2 seconds" +"%T.%3N")" "$1" "$line"
@@ -527,43 +597,108 @@ handler () {
 	    } 2>&1;
 	  } | { read xs; exit $xs; };
 	} 3>&1 || ret=$?
-	echo $ret > /mnt/exitstatus.txt
 	if [ -e cover_db.img ]; then
 		df -h cover_db
 		umount cover_db
 	fi
-) > /mnt/output.txt 2>&1
+	echo $ret
+) > /mnt/result.txt 2>&1
 umount /mnt
 systemctl poweroff
 END
 	chmod +x "$tmpdir/worker.sh"
+	# initially we serve from the new cache so that debootstrap can grab
+	# the new package repository and not the old
+	cat << END > "$tmpdir/mini-httpd"
+START=1
+DAEMON_OPTS="-h 127.0.0.1 -p 80 -u nobody -dd /mnt/$newcache -i /var/run/mini-httpd.pid -T UTF-8"
+END
+	cat << 'END' > "$tmpdir/hosts"
+127.0.0.1 localhost
+END
+	#libguestfs-test-tool
+	#export LIBGUESTFS_DEBUG=1 LIBGUESTFS_TRACE=1
+	#
+	# In case the rootfs was prepared in fakechroot mode, ldconfig has to
+	# run to populate /etc/ld.so.cache or otherwise fakechroot tests will
+	# fail to run.
+	#
+	# The disk size is sufficient in most cases. Sometimes, gcc will do
+	# an upload with unstripped executables to make tracking down ICEs much
+	# easier (see #872672, #894014). During times with unstripped gcc, the
+	# buildd variant will not be 400MB but 1.3GB large and needs a 10G
+	# disk.
 	if [ -z ${DISK_SIZE+x} ]; then
 		DISK_SIZE=10G
 	fi
-  # set PATH to pick up the correct mmdebstrap variant
-  env PATH="$(dirname "$(realpath --canonicalize-existing "$CMD")"):$PATH" \
-    debvm-create --skip=usrmerge,systemdnetwork \
-    --size="$DISK_SIZE" --release="$DEFAULT_DIST" \
-    --output="$newcachedir/debian-$DEFAULT_DIST.ext4" -- \
-    --architectures="$arches" --include="$pkgs" \
-    --setup-hook='echo "Acquire::http::Proxy \"http://127.0.0.1:8080/\";" > "$1/etc/apt/apt.conf.d/00proxy"' \
-    --hook-dir=/usr/share/mmdebstrap/hooks/maybe-merged-usr \
-    --customize-hook='rm "$1/etc/apt/apt.conf.d/00proxy"' \
-    --customize-hook='mkdir -p "$1/etc/systemd/system/multi-user.target.wants"' \
-    --customize-hook='ln -s ../mmdebstrap.service "$1/etc/systemd/system/multi-user.target.wants/mmdebstrap.service"' \
-    --customize-hook='touch "$1/mmdebstrap-testenv"' \
-    --customize-hook='copy-in "'"$tmpdir"'/mmdebstrap.service" /etc/systemd/system/' \
-    --customize-hook='copy-in "'"$tmpdir"'/worker.sh" /' \
-    --customize-hook='echo 127.0.0.1 localhost > "$1/etc/hosts"' \
-    --customize-hook='printf "START=1\nDAEMON_OPTS=\"-h 127.0.0.1 -p 80 -u nobody -dd /mnt/cache -i /var/run/mini-httpd.pid -T UTF-8\"\n" > "$1/etc/default/mini-httpd"' \
-    --customize-hook='touch "$1/etc/systemd/system/tmp.mount"' \
-    "$mirror"
-
-  kill $PROXYPID
+	guestfish -N "$tmpdir/debian-$DEFAULT_DIST.img"=disk:$DISK_SIZE -- \
+		part-disk /dev/sda mbr : \
+		mkfs ext2 /dev/sda1 : \
+		mount /dev/sda1 / : \
+		tar-in "$tmpdir/debian-chroot.tar" / : \
+		command /sbin/ldconfig : \
+		copy-in "$tmpdir/extlinux.conf" / : \
+		mkdir-p /etc/systemd/system/multi-user.target.wants : \
+		ln-s ../mmdebstrap.service /etc/systemd/system/multi-user.target.wants/mmdebstrap.service : \
+		copy-in "$tmpdir/mmdebstrap.service" /etc/systemd/system/ : \
+		copy-in "$tmpdir/worker.sh" / : \
+		copy-in "$tmpdir/mini-httpd" /etc/default : \
+		copy-in "$tmpdir/hosts" /etc/ : \
+		touch /mmdebstrap-testenv : \
+		upload /usr/lib/EXTLINUX/mbr.bin /mbr.bin : \
+		copy-file-to-device /mbr.bin /dev/sda size:440 : \
+		rm /mbr.bin : \
+		extlinux / : \
+		sync : \
+		umount / : \
+		part-set-bootable /dev/sda 1 true : \
+		shutdown
+	qemu-img convert -O qcow2 "$tmpdir/debian-$DEFAULT_DIST.img" "$newcachedir/debian-$DEFAULT_DIST.qcow"
 	cleanuptmpdir
 	trap "cleanup_newcachedir" EXIT INT TERM
 fi
 
+mirror="http://127.0.0.1/debian"
+for dist in oldstable stable testing unstable; do
+	for variant in minbase buildd -; do
+		echo "running debootstrap --variant=$variant $dist \${TEMPDIR} $mirror"
+		cat << END > shared/test.sh
+#!/bin/sh
+set -eu
+export LC_ALL=C.UTF-8
+export SOURCE_DATE_EPOCH=$SOURCE_DATE_EPOCH
+echo "SOURCE_DATE_EPOCH=\$SOURCE_DATE_EPOCH"
+tmpdir="\$(mktemp -d)"
+chmod 755 "\$tmpdir"
+case "$dist" in
+	oldstable|stable)
+		debootstrap --no-merged-usr --variant=$variant $dist "\$tmpdir" $mirror
+		;;
+	*)
+		debootstrap --merged-usr --variant=$variant $dist "\$tmpdir" $mirror
+		;;
+esac
+tar --sort=name --mtime=@$SOURCE_DATE_EPOCH --clamp-mtime --numeric-owner --one-file-system --xattrs -C "\$tmpdir" -c . > "$newcache/debian-$dist-$variant.tar"
+rm -r "\$tmpdir"
+END
+		if [ "$HAVE_QEMU" = "yes" ]; then
+			cachedir=$newcachedir ./run_qemu.sh
+		else
+			./run_null.sh SUDO
+		fi
+	done
+done
+
+if [ "$HAVE_QEMU" = "yes" ]; then
+	# now replace the minihttpd config with one that serves the new repository
+	guestfish -a "$newcachedir/debian-$DEFAULT_DIST.qcow" -i <<EOF
+upload -<<END /etc/default/mini-httpd
+START=1
+DAEMON_OPTS="-h 127.0.0.1 -p 80 -u nobody -dd /mnt/cache -i /var/run/mini-httpd.pid -T UTF-8"
+END
+EOF
+fi
+
 # delete possibly leftover symlink
 if [ -e ./shared/cache.tmp ]; then
 	rm ./shared/cache.tmp
@@ -575,5 +710,3 @@ mv --no-target-directory ./shared/cache.tmp ./shared/cache
 deletecache "$oldcachedir"
 
 trap - EXIT INT TERM
-
-echo "$0 finished successfully" >&2

mmdebstrap-autopkgtest-build-qemu

@@ -1,460 +1,255 @@
 #!/bin/sh
-# Copyright 2023 Johannes Schauer Marin Rodrigues <josch@debian.org>
-# Copyright 2023 Helmut Grohne <helmut@subdivi.de>
-# SPDX-License-Identifier: MIT
-
-# We generally use single quotes to avoid variable expansion:
-# shellcheck disable=SC2016
-
-# Replacement for autopkgtest-build-qemu and vmdb2 for all architectures
-# supporting EFI booting (amd64, arm64, armhf, i386, riscv64).
-# For use as replacement for autopkgtest-build-qemu and vmdb2 on ppc64el which
-# neither supports extlinux nor efi booting there is an unmaintained script
-# which uses grub instead to boot:
 #
-#     https://gitlab.mister-muffin.de/josch/mmdebstrap/src/commit/
-#     e523741610a4ed8579642bfc755956f64c847ef3/mmdebstrap-autopkgtest-build-qemu
-
-: <<'POD2MAN'
-=head1 NAME
-
-mmdebstrap-autopkgtest-build-qemu - autopkgtest-build-qemu without vmdb2 but mmdebstrap and EFI boot
-
-=head1 SYNOPSIS
-
-B<mmdebstrap-autopkgtest-build-qemu> [I<OPTIONS>] B<--boot>=B<efi> I<RELEASE> I<IMAGE>
-
-=head1 DESCRIPTION
-
-B<mmdebstrap-autopkgtest-build-qemu> is a mostly compatible drop-in replacement
-for L<autopkgtest-build-qemu(1)> with two main differences: Firstly, it uses
-L<mmdebstrap(1)> instead of L<vmdb2(1)> and thus is able to create QEMU disk
-images without requiring superuser privileges and with bit-by-bit reproducible
-output. Secondly, it uses L<systemd-boot(7)> and thus only supports booting via
-EFI. For architectures for which L<autopkgtest-virt-qemu(1)> does not default
-to EFI booting you must pass B<--boot=efi> when invoking the autopkgtest virt
-backend.
-
-=head1 POSITIONAL PARAMETERS
-
-=over 8
-
-=item I<RELEASE>
-
-The release to download from the I<MIRROR>.  This parameter is required.
-
-=item I<IMAGE>
-
-The file to write, in raw format. This parameter is required.
-
-=back
-
-=head1 OPTIONS
-
-=over 8
-
-=item B<--mirror>=I<MIRROR>
-
-Specify  which  distribution  to install.  It defaults to
-http://deb.debian.org/debian (i.e. Debian), but you can pass a mirror of any
-Debian derivative.
-
-=item B<--architecture>=I<ARCHITECTURE>
-
-Set the architecture for the virtual machine image, specified as a L<dpkg(1)>
-architecture.  If  omitted, the host architecture is assumed.
-
-B<--arch>=I<ARCH> is an alias for this option.
-
-=item B<--script>=I<SCRIPT>
-
-Specifies a user script that will be called with the root filesystem of the
-image as its first parameter. This script can them make any necesssary
-modifications to the root filesystem.
-
-The script must be a POSIX shell script, and should not depend on bash-specific
-features. This  script will be executed inside a L<chroot(1)> call in the
-virtual machine root filesystem.
-
-=item B<--size>=I<SIZE>
-
-Specifies the image size for the virtual machine, defaulting to 25G.
-
-=item B<--apt-proxy>=I<PROXY>
-
-Specify  an  apt proxy to use in the virtual machine.  By default, if you have
-an apt proxy configured on the host, the virtual machine will automatically use
-this, otherwise there is no default.
-
-=item B<--boot>=B<efi>, B<--efi>
-
-Select the way the generated image will expect to be booted. Unless you
-explicitly select --boot=efi, operation will fail.
-
-=item B<--keyring>=I<KEYRING>
-
-Passes an additional B<--keyring> parameter to B<mmdebstrap>.
-
-=back
-
-=head1 EXAMPLES
-
-Make sure, that F</path/to/debian-unstable.img> is a path that the unshared
-user has access to. This can be done by ensuring world-execute permissions on
-all path components or by creating the image in a world-readable directory like
-/tmp before copying it into its final location.
-
-    $ mmdebstrap-autopkgtest-build-qemu --boot=efi --arch=amd64 unstable /path/to/debian-unstable.img
-    [...]
-    $ autopkgtest mypackage -- qemu --boot=efi --dpkg-architecture=amd64 /path/to/debian-unstable.img
-
-Make sure to add B<--boot=efi> to both the B<mmdebstrap-autopkgtest-build-qemu>
-as well as the B<autopkgtest-virt-qemu> invocation.
-
-Create bit-by-bit reproducible images from a given snapshot.d.o timestamp.
-
-    SOURCE_DATE_EPOCH=1612543740 mmdebstrap-autopkgtest-build-qemu --boot=efi \
-        --mirror=http://snapshot.debian.org/archive/debian/20210205T164900Z/ \
-        unstable /path/to/debian-unstable.img
-
-=head1 SEE ALSO
-
-L<autopkgtest-build-qemu(1)>, L<autopkgtest-virt-qemu(1)>, L<mmdebstrap(1)>, L<autopkgtest(1)>
-
-=cut
-POD2MAN
+# © 2022 Johannes Schauer Marin Rodrigues <josch@mister-muffin.de>
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to
+# deal in the Software without restriction, including without limitation the
+# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+# sell copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# The software is provided "as is", without warranty of any kind, express or
+# implied, including but not limited to the warranties of merchantability,
+# fitness for a particular purpose and noninfringement. In no event shall the
+# authors or copyright holders be liable for any claim, damages or other
+# liability, whether in an action of contract, tort or otherwise, arising
+# from, out of or in connection with the software or the use or other dealings
+# in the software.
 
 set -eu
 
-die() {
-  echo "$*" 1>&2
-  exit 1
-}
+# This script creates debian-$RELEASE.qcow2 in the current directory which can
+# then be used by the autopkgtest qemu backend.
+#
+# Thanks to Francesco Poli for providing ideas and testing this.
+#
+# Thanks to Lars Wirzenius of vmdb2 where the grub and efi magic comes from.
+#
+# Only the native architecture is supported because guestfish doesn't support
+# foreign architectures.
+
 usage() {
-  die "usage: $0 [--architecture=|--apt-proxy=|--keyring=|--mirror=|--script=|--size=] --boot=efi <RELEASE> <IMAGE>"
+	echo "Usage: $0 [--size=SIZE] [--boot=BOOT] RELEASE IMAGE" >&2
+	echo >&2
+	echo "RELEASE is a Debian release like unstable" >&2
+	echo "IMAGE will be stored in qcow2 format" >&2
+	echo "SIZE is 25G by default" >&2
+	echo "BOOT is either auto (the default), bios, efi or ieee1275" >&2
 }
-usage_error() {
-  echo "error: $*" 1>&2
+
+nativearch="$(dpkg --print-architecture)"
+
+SIZE="25G" # default from autopkgtest-build-qemu
+BOOT="auto"
+if [ "$#" -lt 2 ]; then
+	echo "Error: Insufficient number of arguments" >&2
 	usage
-}
-
-BOOT=auto
-ARCHITECTURE=$(dpkg --print-architecture)
-IMAGE=
-MIRROR=
-KEYRING=
-RELEASE=
-SIZE=25G
-SCRIPT=
-
-# consumed by setup-testbed
-export AUTOPKGTEST_BUILD_QEMU=1
-
-opt_boot() {
-  BOOT="$1"
-}
-opt_architecture() {
-  ARCHITECTURE="$1"
-}
-opt_arch() {
-  ARCHITECTURE="$1"
-}
-opt_apt_proxy() {
-  # consumed by setup-testbed
-  export AUTOPKGTEST_APT_PROXY="$1"
-  # consumed by mmdebstrap
-  if test "$1" = DIRECT; then
-    unset http_proxy
-  else
-    export http_proxy="$1"
+	exit 1
+elif [ "$#" -eq 2 ]; then
+	RELEASE=$1
+	IMAGE=$2
+else
+	# parse options
+	OPTS=$(getopt -n "$0" -o h --long size:,boot:,architecture:,help -- "$@")
+	if [ "$?" -ne 0 ]; then
+		echo "Error: Cannot parse arguments" >&2
+		usage
+		exit 1
 	fi
-}
-opt_keyring() {
-  KEYRING="$1"
-}
-opt_mirror() {
-  # consumed by setup-testbed
-  export MIRROR="$1"
-}
-opt_script() {
-  test -f "$1" || die "passed script '$1' does not refer to a file"
-  SCRIPT="$1"
-}
-opt_size() {
-  SIZE="$1"
-}
-
-positional=1
-positional_1() {
-  # consumed by setup-testbed
-  export RELEASE="$1"
-}
-positional_2() {
-  IMAGE="$1"
-}
-positional_3() { opt_mirror "$@"; }
-positional_4() { opt_architecture "$@"; }
-positional_5() { opt_script "$@"; }
-positional_6() { opt_size "$@"; }
-positional_7() {
-  die "too many positional options"
-}
-
-while test "$#" -gt 0; do
+	eval set -- "$OPTS"
+	while true; do
 		case "$1" in
-    --architecture=* | --arch=* | --boot=* | --keyring=* | --mirror=* | --script=* | --size=*)
-      optname="${1%%=*}"
-      "opt_${optname#--}" "${1#*=}"
-      ;;
-    --apt-proxy=*)
-      opt_apt_proxy "${1#*=}"
-      ;;
-    --architecture | --arch | --boot | --keyring | --mirror | --script | --size)
-      test "$#" -ge 2 || usage_error "missing argument for $1"
-      "opt_${1#--}" "$2"
-      shift
-      ;;
-    --apt-proxy)
-      test "$#" -ge 2 || usage_error "missing argument for $1"
-      opt_apt_proxy "$2"
-      shift
-      ;;
-    --efi)
-      opt_boot efi
-      ;;
-    --*)
-      usage_error "unrecognized argument $1"
+			--size) SIZE="$2"; shift 2; continue;;
+			--boot) BOOT="$2"; shift 2; continue;;
+			--help) usage; exit 1;;
+			--architecture)
+				echo "Error: cannot (yet) create foreign architecture images" >&2
+				exit 1
 				;;
+			--) shift; break;;
 			*)
-      "positional_$positional" "$1"
-      positional=$((positional + 1))
+				echo "Error: unknown option $1" >&2
+				usage
+				exit 1
 				;;
 		esac
-  shift
-done
+	done
+	RELEASE=$1
+	IMAGE=$2
+fi
 
-test -z "$RELEASE" -o -z "$IMAGE" && usage_error "missing positional arguments"
-test "$BOOT" = efi \
-  || die "this tool does not support boot modes other than efi"
-
-case "$ARCHITECTURE" in
-  amd64)
-    EFIIMG=bootx64.efi
-    QEMUARCH=x86_64
-    VMFPKG=ovmf
-    LINUXIMAGE=linux-image-amd64
+# By default with --boot=auto (the default), bios boot is chosen for
+# amd64 and i386. Compare /usr/share/autopkgtest/lib/autopkgtest_qemu.py
+# But in practice, amd64 and i386 also support efi boot. But then
+# autopkgtest-virt-qemu has to be run with --boot=efi
+case "$BOOT" in
+	auto)
+		case "$nativearch" in
+			amd64|i386) BOOT=bios;;
+			armhf|arm64) BOOT=efi;;
+			ppc64el) BOOT=ieee1275;;
+		esac
 		;;
-  arm64)
-    EFIIMG=bootaa64.efi
-    QEMUARCH=aarch64
-    VMFPKG=qemu-efi-aarch64
-    LINUXIMAGE=linux-image-arm64
+	bios)
+		case "$nativearch" in amd64|i386);;
+			*)
+				echo "bios booting only possible on amd64 and i386" >&2
+				exit 1
 				;;
-  armhf)
-    EFIIMG=bootarm.efi
-    QEMUARCH=arm
-    VMFPKG=qemu-efi-arm
-    LINUXIMAGE=linux-image-armmp
+		esac
 		;;
-  i386)
-    EFIIMG=bootia32.efi
-    QEMUARCH=i386
-    VMFPKG=ovmf-ia32
-    LINUXIMAGE=linux-image-686-pae
+	efi)
+		case "$nativearch" in amd64|i386|armhf|arm64);;
+			*)
+				echo "efi booting only possible on amd64, i386, armhf and arm64" >&2
+				exit 1
 				;;
-  riscv64)
-    EFIIMG=bootriscv64.efi
-    QEMUARCH=riscv64
-    VMFPKG=
-    LINUXIMAGE=linux-image-riscv64
+		esac
+		;;
+	ieee1275)
+		if [ "$nativearch" != "ppc64el" ]; then
+			echo "ieee1275 booting only possible on ppc64el" >&2
+			exit 1
+		fi
 		;;
 	*)
-    die "unsupported architecture: $ARCHITECTURE"
+		echo "invalid value for --boot" >&2;;
+esac
+
+case "$nativearch" in
+	amd64)
+		[ $BOOT = bios ] || [ $BOOT = efi ]
+		if [ $BOOT = bios ]; then
+			include="linux-image-amd64 grub-pc"
+			grub_target="i386-pc"
+		elif [ $BOOT = efi ]; then
+			include="linux-image-amd64 grub-efi"
+			grub_target="x86_64-efi"
+		fi
+		;;
+	arm64)
+		[ $BOOT = efi ]
+		include="linux-image-arm64 grub-efi"
+		grub_target="arm64-efi"
+		;;
+	armhf)
+		[ $BOOT = efi ]
+		include="linux-image-armmp-lpae grub-efi"
+		grub_target="arm-efi"
+		;;
+	i386)
+		[ $BOOT = bios ] || [ $BOOT = efi ]
+		if [ $BOOT = bios ]; then
+			include="linux-image-686-pae grub-pc"
+			grub_target="i386-efi"
+		elif [ $BOOT = efi ]; then
+			include="linux-image-686-pae grub-efi"
+			grub_target="i386-efi"
+		fi
+		;;
+	ppc64el)
+		[ $BOOT = ieee1275 ]
+		include="linux-image-powerpc64le grub-ieee1275"
+		grub_target="powerpc-ieee1275"
+		;;
+	*)
+		echo "architecture $nativearch not yet supported" >&2
+		exit 1
 		;;
 esac
 
-if test "$(dpkg-query -f '${db:Status-Status}' -W binutils-multiarch)" = installed; then
-  GNU_PREFIX=
-  BINUTILS=
-else
-  GNU_ARCHITECTURE="$(dpkg-architecture "-a$ARCHITECTURE" -qDEB_HOST_GNU_TYPE)"
-  GNU_PREFIX="$GNU_ARCHITECTURE-"
-  GNU_SUFFIX="-$(echo "$GNU_ARCHITECTURE" | tr _ -)"
-  BINUTILS=", binutils$GNU_SUFFIX | binutils-multiarch"
-fi
-
-arches=" $(dpkg --print-architecture) $(dpkg --print-foreign-architectures | tr '\n' ' ') "
-case $arches in
-  *" $ARCHITECTURE "*) : ;; # nothing to do
-  *) die "enable $ARCHITECTURE by running: sudo dpkg --add-architecture $ARCHITECTURE && sudo apt update" ;;
+case "$nativearch" in
+	arm64|armhf) serial="loglevel=3 console=tty0 console=ttyAMA0,115200n8" ;;
+	ppc64el) serial="loglevel=3 console=tty0 console=hvc0,115200n8" ;;
+	*) serial="loglevel=3 console=tty0 console=ttyS0,115200n8" ;;
 esac
 
-test "$(dpkg-query -f '${db:Status-Status}' -W "dpkg-dev")" = installed \
-  || die "please install dpkg-dev"
+if ! command -v guestfish >/dev/null; then
+	echo "Error: requires guestfish being installed" >&2
+	exit 1
+fi
 
-dpkg-checkbuilddeps -d "autopkgtest, dosfstools, e2fsprogs, fdisk, mount, mtools, passwd, uidmap, libarchive13, systemd-boot-efi:$ARCHITECTURE $BINUTILS" /dev/null \
-  || die "please install the required packages listed above"
+if [ ! -e /usr/share/autopkgtest/setup-commands/setup-testbed ]; then
+	echo "Error: requires autopkgtest being installed" >&2
+	exit 1
+fi
 
-BOOTSTUB="/usr/lib/systemd/boot/efi/linux${EFIIMG#boot}.stub"
-
-WORKDIR=
-
-cleanup() {
-  test -n "$WORKDIR" && rm -Rf "$WORKDIR"
+run_mmdebstrap() {
+	mmdebstrap --variant=important --include="$include" \
+	--customize-hook='chroot "$1" passwd --delete root' \
+	--customize-hook='chroot "$1" useradd --home-dir /home/user --create-home user' \
+	--customize-hook='chroot "$1" passwd --delete user' \
+	--customize-hook='echo host > "$1/etc/hostname"' \
+	--customize-hook='echo "127.0.0.1 localhost host" > "$1/etc/hosts"' \
+	--customize-hook='env AUTOPKGTEST_BUILD_QEMU=1 /usr/share/autopkgtest/setup-commands/setup-testbed "$1"' \
+	"$RELEASE" -
 }
 
-trap cleanup EXIT INT TERM QUIT
+guestfish_bios() {
+	guestfish -- \
+	disk-create "$IMAGE" qcow2 "$SIZE" : \
+	add-drive "$IMAGE" format:qcow2 : \
+	launch : \
+	part-disk /dev/sda mbr : \
+	part-set-bootable /dev/sda 1 true : \
+	mkfs ext4 /dev/sda1 : mount /dev/sda1 / : \
+	tar-in - / xattrs:true : \
+	command "sh -c 'echo UUID=\$(blkid -c /dev/null -o value -s UUID /dev/sda1) / ext4 errors=remount-ro 0 1 > /etc/fstab'" : \
+	command "update-initramfs -u" : \
+	command "grub-mkconfig -o /boot/grub/grub.cfg" : \
+	command "grub-install /dev/sda --target=$grub_target --no-nvram --force-extra-removable --no-floppy --modules=part_gpt --grub-mkdevicemap=/boot/grub/device.map" : \
+	sync : umount / : shutdown
+}
 
-WORKDIR=$(mktemp -d)
+guestfish_efi() {
+	guestfish -- \
+	disk-create "$IMAGE" qcow2 "$SIZE" : \
+	add-drive "$IMAGE" format:qcow2 : \
+	launch : \
+	part-init /dev/sda gpt : \
+	part-add /dev/sda primary 8192 262144 : \
+	part-add /dev/sda primary 262145 -34 : \
+	part-set-gpt-type /dev/sda 1 C12A7328-F81F-11D2-BA4B-00A0C93EC93B  : \
+	mkfs ext4 /dev/sda2 : mount /dev/sda2 / : \
+	tar-in - / xattrs:true : \
+	mkdir-p /boot/efi : \
+	mkfs vfat /dev/sda1 : mount /dev/sda1 /boot/efi : \
+	command "sh -c 'echo UUID=\$(blkid -c /dev/null -o value -s UUID /dev/sda2) / ext4 errors=remount-ro 0 1 > /etc/fstab'" : \
+	command "sh -c 'echo UUID=\$(blkid -c /dev/null -o value -s UUID /dev/sda1) /boot/efi vfat errors=remount-ro 0 2 >> /etc/fstab'" : \
+	command "sed -i 's/^GRUB_CMDLINE_LINUX_DEFAULT=/GRUB_CMDLINE_LINUX_DEFAULT=\"biosdevname=0 net.ifnames=0 consoleblank=0 rw $serial\"/' /etc/default/grub" : \
+	command "update-initramfs -u" : \
+	command "grub-mkconfig -o /boot/grub/grub.cfg" : \
+	command "grub-install /dev/sda --target=$grub_target --no-nvram --force-extra-removable --no-floppy --modules=part_gpt --grub-mkdevicemap=/boot/grub/device.map" : \
+	sync : umount /boot/efi : umount / : shutdown
+}
 
-FAT_OFFSET_SECTORS=$((1024 * 2))
-FAT_SIZE_SECTORS=$((1024 * 254))
+guestfish_ieee1275() {
+	guestfish -- \
+	disk-create "$IMAGE" qcow2 "$SIZE" : \
+	add-drive "$IMAGE" format:qcow2 : \
+	launch : \
+	part-init /dev/sda gpt : \
+	part-add /dev/sda primary 8192 20480 : \
+	part-add /dev/sda primary 20481 -34 : \
+	part-set-gpt-type /dev/sda 1 9E1A2D38-C612-4316-AA26-8B49521E5A8B : \
+	mkfs ext4 /dev/sda2 : mount /dev/sda2 / : \
+	tar-in - / xattrs:true : \
+	command "sh -c 'echo UUID=\$(blkid -c /dev/null -o value -s UUID /dev/sda2) / ext4 errors=remount-ro 0 1 > /etc/fstab'" : \
+	command "sed -i 's/^GRUB_CMDLINE_LINUX_DEFAULT=/GRUB_CMDLINE_LINUX_DEFAULT=\"biosdevname=0 net.ifnames=0 consoleblank=0 rw $serial\"/' /etc/default/grub" : \
+	command "update-initramfs -u" : \
+	command "grub-mkconfig -o /boot/grub/grub.cfg" : \
+	command "grub-install /dev/sda --target=$grub_target --no-nvram --force-extra-removable --no-floppy --modules=part_gpt --grub-mkdevicemap=/boot/grub/device.map" : \
+	sync : umount / : shutdown
+}
 
-# The image is raw and not in qcow2 format because:
-#  - faster run-time as the "qemu-image convert" step is not needed
-#  - image can be used independent of qemu tooling
-#  - modifying the image just with "mount" instead of requiring qemu-nbd
-#  - sparse images make the file just as small as with qcow2
-#  - trim support is more difficult on qcow2
-#  - snapshots and overlays work just as well with raw images
-#  - users who prefer qcow2 get to choose to run it themselves with their own
-#    custom options like compression
-
-set -- \
-  --mode=unshare \
-  --format=tar \
-  --variant=important \
-  --architecture="$ARCHITECTURE"
-
-case $MIRROR in http://snapshot.debian.org/archive/* | https://snapshot.debian.org/archive/*)
-  set -- "$@" --aptopt='Acquire::Check-Valid-Until "false"'
-  ;;
+case "$BOOT" in
+	bios) run_mmdebstrap | guestfish_bios;;
+	efi) run_mmdebstrap | guestfish_efi;;
+	ieee1275) run_mmdebstrap | guestfish_ieee1275;;
 esac
 
-EXT_FEATURES=
-if test "$RELEASE" = jessie; then
-  set -- "$@" --keyring=/usr/share/keyrings/debian-archive-removed-keys.gpg
-  set -- "$@" --aptopt='Apt::Key::gpgvcommand "/usr/libexec/mmdebstrap/gpgvnoexpkeysig"'
-  set -- "$@" --hook-dir=/usr/share/mmdebstrap/hooks/jessie-or-older
-  EXT_FEATURES="^metadata_csum,^metadata_csum_seed,^orphan_file"
-fi
-
-set -- "$@" \
-  "--include=init,$LINUXIMAGE,python3" \
-  '--customize-hook=echo host >"$1/etc/hostname"' \
-  '--customize-hook=echo 127.0.0.1 localhost host >"$1/etc/hosts"' \
-  '--customize-hook=passwd --root "$1" --delete root' \
-  '--customize-hook=useradd --root "$1" --home-dir /home/user --create-home user' \
-  '--customize-hook=passwd --root "$1" --delete user' \
-  '--customize-hook=/usr/share/autopkgtest/setup-commands/setup-testbed'
-
-if test -n "$SCRIPT"; then
-  set -- "$@" \
-    "--customize-hook=upload '$SCRIPT' /userscript" \
-    "--chrooted-customize-hook=sh /userscript" \
-    '--customize-hook=rm -f "$1/userscript"'
-fi
-
-set -- "$@" \
-  "--customize-hook=download vmlinuz '$WORKDIR/kernel'" \
-  "--customize-hook=download initrd.img '$WORKDIR/initrd'" \
-  "$RELEASE" \
-  -
-
-test -n "$MIRROR" && set -- "$@" "$MIRROR"
-test -n "$KEYRING" && set -- "$@" "--keyring=$KEYRING"
-
-echo "+ mmdebstrap $*" >&2
-# https://github.com/koalaman/shellcheck/issues/2555
-# shellcheck disable=SC3040
-set -o pipefail
-mmdebstrap "$@" | {
-  set -- -t ext4 -L autopkgtestvm -d -
-  if test -n "$EXT_FEATURES"; then
-    set -- "$@" -O "$EXT_FEATURES"
-  fi
-  EXTOPTS="offset=$(((FAT_OFFSET_SECTORS + FAT_SIZE_SECTORS) * 512))"
-  if test -n "${SOURCE_DATE_EPOCH-}"; then
-    uuid="$(uuidgen --sha1 --namespace="$(uuidgen --sha1 --namespace='@dns' --name mister-muffin.de)" --name "$SOURCE_DATE_EPOCH")"
-    set -- "$@" -U "$uuid"
-    EXTOPTS="$EXTOPTS,hash_seed=$uuid"
-  fi
-  set -- "$@" -E "$EXTOPTS" "$IMAGE" "$SIZE"
-  echo "+ mke2fs $*" >&2
-  /sbin/mke2fs "$@"
-}
-
-echo "root=LABEL=autopkgtestvm rw console=ttyS0" >"$WORKDIR/cmdline"
-
-align_size() {
-  echo "$((($1) + ($2) - 1 - (($1) + ($2) - 1) % ($2)))"
-}
-
-alignment=$("${GNU_PREFIX}objdump" -p "$BOOTSTUB" | sed 's/^SectionAlignment\s\+\([0-9]\)/0x/;t;d')
-test -z "$alignment" && die "failed to discover the alignment of the efi stub"
-echo "determined efi vma alignment as $alignment"
-test "$RELEASE" = jessie -a "$((alignment))" -lt "$((1024 * 1024))" && {
-  echo "increasing efi vma alignment for jessie"
-  alignment=$((1024 * 1024))
-}
-lastoffset=0
-# shellcheck disable=SC2034  # unused variables serve documentation
-lastoffset="$("${GNU_PREFIX}objdump" -h "$BOOTSTUB" \
-  | while read -r idx name size vma lma fileoff algn behind; do
-    test -z "$behind" -a "${algn#"2**"}" != "$algn" || continue
-    offset=$((0x$vma + 0x$size))
-    test "$offset" -gt "$lastoffset" || continue
-    lastoffset="$offset"
-    echo "$lastoffset"
-  done | tail -n1)"
-lastoffset=$(align_size "$lastoffset" "$alignment")
-echo "determined minimum efi vma offset as $lastoffset"
-
-cmdline_size="$(stat -Lc%s "$WORKDIR/cmdline")"
-cmdline_size="$(align_size "$cmdline_size" "$alignment")"
-linux_size="$(stat -Lc%s "$WORKDIR/kernel")"
-linux_size="$(align_size "$linux_size" "$alignment")"
-cmdline_offset="$lastoffset"
-linux_offset=$((cmdline_offset + cmdline_size))
-initrd_offset=$((linux_offset + linux_size))
-
-SOURCE_DATE_EPOCH=0 \
-  "${GNU_PREFIX}objcopy" \
-  --enable-deterministic-archives \
-  --add-section .cmdline="$WORKDIR/cmdline" \
-  --change-section-vma .cmdline="$(printf 0x%x "$cmdline_offset")" \
-  --add-section .linux="$WORKDIR/kernel" \
-  --change-section-vma .linux="$(printf 0x%x "$linux_offset")" \
-  --add-section .initrd="$WORKDIR/initrd" \
-  --change-section-vma .initrd="$(printf 0x%x "$initrd_offset")" \
-  "$BOOTSTUB" "$WORKDIR/efiimg"
-
-rm -f "$WORKDIR/kernel" "$WORKDIR/initrd"
-
-truncate -s "$((FAT_SIZE_SECTORS * 512))" "$WORKDIR/fat"
-/sbin/mkfs.fat -F 32 --invariant "$WORKDIR/fat"
-mmd -i "$WORKDIR/fat" EFI EFI/BOOT
-mcopy -i "$WORKDIR/fat" "$WORKDIR/efiimg" "::EFI/BOOT/$EFIIMG"
-
-rm -f "$WORKDIR/efiimg"
-
-truncate --size="+$((34 * 512))" "$IMAGE"
-/sbin/sfdisk "$IMAGE" <<EOF
-label: gpt
-unit: sectors
-
-start=$FAT_OFFSET_SECTORS, size=$FAT_SIZE_SECTORS, type=C12A7328-F81F-11D2-BA4B-00A0C93EC93B
-start=$((FAT_OFFSET_SECTORS + FAT_SIZE_SECTORS)), type=0FC63DAF-8483-4772-8E79-3D69D8477DE4
-EOF
-
-dd if="$WORKDIR/fat" of="$IMAGE" conv=notrunc,sparse bs=512 "seek=$FAT_OFFSET_SECTORS" status=none
-
-if test "$(dpkg --print-architecture)" != "$ARCHITECTURE" && test "$(dpkg-query -f '${db:Status-Status}' -W "qemu-system-$QEMUARCH")" != installed; then
-  echo "I: you might need to install a package providing qemu-system-$QEMUARCH to use this image with autopkgtest-virt-qemu" >&2
-fi
-if test -n "$VMFPKG" && test "$(dpkg-query -f '${db:Status-Status}' -W "$VMFPKG")" != installed; then
-  echo "I: you might need to install $VMFPKG to use this image with autopkgtest-virt-qemu" >&2
-fi
-
-echo "I: SUCCESS! Your new image can be found here: $IMAGE" >&2
-echo "I: Don't forget to pass --boot=efi when running autopkgtest-virt-qemu with this image" >&2
+echo "Success! The image is stored as $IMAGE" >&2

run_null.sh

@@ -17,33 +17,14 @@ while [ "$#" -gt 0 ]; do
 	shift
 done
 
-# - Run command with fds 3 and 4 closed so that whatever test.sh does it
-#   cannot interfere with these.
-# - Both stdin and stderr of test.sh are written to stdout
-# - Write exit status of test.sh to fd 3
-# - Write stdout to shared/output.txt as well as to fd 4
-# - Redirect fd 3 to stdout
-# - Read fd 3 and let the group exit with that value
-# - Redirect fd 4 to stdout
-ret=0
-{
-  {
-    {
-      {
-        ret=0
-        (
-          exec 3>&- 4>&-
-          env --chdir=./shared $SUDO sh -x ./test.sh 2>&1
-        ) || ret=$?
-        echo $ret >&3
-      } | tee shared/output.txt >&4
-    } 3>&1
-  } | {
-    read -r xs
-    exit "$xs"
-  }
-} 4>&1 || ret=$?
-if [ "$ret" -ne 0 ]; then
+# subshell so that we can cd without effecting the rest
+(
+	set +e
+	cd ./shared;
+	$SUDO sh -x ./test.sh;
+	echo $?;
+) 2>&1 | tee shared/result.txt | head --lines=-1
+if [ "$(tail --lines=1 shared/result.txt)" -ne 0 ]; then
 	echo "test.sh failed"
 	exit 1
 fi

run_qemu.sh

@@ -4,15 +4,17 @@ set -eu
 
 : "${DEFAULT_DIST:=unstable}"
 : "${cachedir:=./shared/cache}"
-: "${MMDEBSTRAP_TESTS_DEBUG:=no}"
 tmpdir="$(mktemp -d)"
 
 cleanup() {
 	rv=$?
+	rm -f "$tmpdir/debian-$DEFAULT_DIST-overlay.qcow"
 	rm -f "$tmpdir/log"
 	[ -e "$tmpdir" ] && rmdir "$tmpdir"
-  if [ -e shared/output.txt ]; then
-    res="$(cat shared/exitstatus.txt)"
+	if [ -e shared/result.txt ]; then
+		head --lines=-1 shared/result.txt
+		res="$(tail --lines=1 shared/result.txt)"
+		rm shared/result.txt
 		if [ "$res" != "0" ]; then
 			# this might possibly overwrite another non-zero rv
 			rv=1
@@ -23,49 +25,24 @@ cleanup() {
 
 trap cleanup INT TERM EXIT
 
-echo 1 >shared/exitstatus.txt
-if [ -e shared/output.txt ]; then
-  rm shared/output.txt
-fi
-touch shared/output.txt
-setpriv --pdeathsig TERM tail -f shared/output.txt &
-
-set -- timeout --foreground 40m \
-  debvm-run --image="$(realpath "$cachedir")/debian-$DEFAULT_DIST.ext4" \
-  --
-cpuname=$(lscpu | awk '/Model name:/ {print $3}' | tr '\n' '+')
-ncpu=$(lscpu | awk '/Core\(s\) per socket:/ {print $4}' | tr '\n' '+')
-if [ "$cpuname" = "Cortex-A53+Cortex-A73+" ] && [ "$ncpu" = "2+4+" ]; then
-  # crude detection of the big.LITTLE heterogeneous setup of cores on the
-  # amlogic a311d bananapi
-  #
-  # https://lists.nongnu.org/archive/html/qemu-devel/2020-10/msg08494.html
-  # https://gitlab.com/qemu-project/qemu/-/issues/239
-  # https://segments.zhan.science/posts/kvm_on_pinehone_pro/#trouble-with-heterogeneous-architecture
-  set -- taskset --cpu-list 2,3,4,5 "$@" -smp 4
-fi
-
-set -- "$@" -nic none -m 4G -snapshot
-
-if [ "$MMDEBSTRAP_TESTS_DEBUG" = "no" ]; then
-  # to connect to serial use:
-  #   minicom -D 'unix#/tmp/ttyS0'
-  # or this (quit with ctrl+q):
-  #   socat stdin,raw,echo=0,escape=0x11 unix-connect:/tmp/ttyS0
-  set -- "$@" \
+# the path to debian-$DEFAULT_DIST.qcow must be absolute or otherwise qemu will
+# look for the path relative to debian-$DEFAULT_DIST-overlay.qcow
+qemu-img create -f qcow2 -b "$(realpath $cachedir)/debian-$DEFAULT_DIST.qcow" -F qcow2 "$tmpdir/debian-$DEFAULT_DIST-overlay.qcow"
+# to connect to serial use:
+#   minicom -D 'unix#/tmp/ttyS0'
+ret=0
+timeout --foreground 20m qemu-system-x86_64 \
+	-cpu host \
+	-no-user-config \
+	-M accel=kvm:tcg -m 4G -nographic \
+	-object rng-random,filename=/dev/urandom,id=rng0 -device virtio-rng-pci,rng=rng0 \
 	-monitor unix:/tmp/monitor,server,nowait \
 	-serial unix:/tmp/ttyS0,server,nowait \
-    -serial unix:/tmp/ttyS1,server,nowait
-fi
-
-set -- "$@" -virtfs local,id=mmdebstrap,path="$(pwd)/shared",security_model=none,mount_tag=mmdebstrap
-
-ret=0
-if [ "$MMDEBSTRAP_TESTS_DEBUG" = "no" ]; then
-  "$@" >"$tmpdir/log" 2>&1 || ret=$?
-else
-  "$@" 2>&1 | tee "$tmpdir/log" || ret=$?
-fi
+	-serial unix:/tmp/ttyS1,server,nowait \
+	-net nic,model=virtio -net user \
+	-virtfs local,id=mmdebstrap,path="$(pwd)/shared",security_model=none,mount_tag=mmdebstrap \
+	-drive file="$tmpdir/debian-$DEFAULT_DIST-overlay.qcow",cache=unsafe,index=0,if=virtio \
+	>"$tmpdir/log" 2>&1 || ret=$?
 if [ "$ret" -ne 0 ]; then
 	cat "$tmpdir/log"
 	exit $ret

tarfilter

@@ -43,80 +43,20 @@ class PaxFilterAction(argparse.Action):
         setattr(namespace, "paxfilter", items)
 
 
-class TypeFilterAction(argparse.Action):
-    def __call__(self, parser, namespace, values, option_string=None):
-        items = getattr(namespace, "typefilter", [])
-        match values:
-            case "REGTYPE" | "0":
-                items.append(tarfile.REGTYPE)
-            case "LNKTYPE" | "1":
-                items.append(tarfile.LNKTYPE)
-            case "SYMTYPE" | "2":
-                items.append(tarfile.SYMTYPE)
-            case "CHRTYPE" | "3":
-                items.append(tarfile.CHRTYPE)
-            case "BLKTYPE" | "4":
-                items.append(tarfile.BLKTYPE)
-            case "DIRTYPE" | "5":
-                items.append(tarfile.DIRTYPE)
-            case "FIFOTYPE" | "6":
-                items.append(tarfile.FIFOTYPE)
-            case _:
-                raise ValueError("invalid type: %s" % values)
-        setattr(namespace, "typefilter", items)
-
-
-class TransformAction(argparse.Action):
-    def __call__(self, parser, namespace, values, option_string=None):
-        items = getattr(namespace, "trans", [])
-        # This function mimics what src/transform.c from tar does
-        if not values.startswith("s"):
-            raise ValueError("regex must start with an 's'")
-        if len(values) <= 4:
-            # minimum regex: s/x//
-            raise ValueError("invalid regex (too short)")
-        d = values[1]
-        if values.startswith(f"s{d}{d}"):
-            raise ValueError("empty regex")
-        values = values.removeprefix(f"s{d}")
-        flags = 0
-        if values.endswith(f"{d}i"):
-            # trailing flags
-            flags = re.IGNORECASE
-            values = values.removesuffix(f"{d}i")
-        # This regex only finds non-empty tokens.
-        # Finding empty tokens would require a variable length look-behind
-        # or \K in order to find escaped delimiters which is not supported by
-        # the python re module.
-        tokens = re.findall(rf"(?:\\[\\{d}]|[^{d}])+", values)
-        match len(tokens):
-            case 0:
-                raise ValueError("invalid regex: not enough terms")
-            case 1:
-                repl = ""
-            case 2:
-                repl = tokens[1]
-            case _:
-                raise ValueError("invalid regex: too many terms: %s" % tokens)
-        items.append((re.compile(tokens[0], flags), repl))
-        setattr(namespace, "trans", items)
-
-
 def main():
     parser = argparse.ArgumentParser(
-        formatter_class=argparse.RawDescriptionHelpFormatter,
         description="""\
 Filters a tarball on standard input by the same rules as the dpkg --path-exclude
 and --path-include options and writes resulting tarball to standard output. See
-dpkg(1) for information on how these two options work in detail. To reuse the
-exact same semantics as used by dpkg, paths must be given as /path and not as
-./path even though they might be stored as such in the tarball.
+dpkg(1) for information on how these two options work in detail. Since this is
+meant for filtering tarballs storing a rootfs, notice that paths must be given
+as /path and not as ./path even though they might be stored as such in the
+tarball.
 
-Secondly, filter out unwanted pax extended headers using --pax-exclude and
---pax-include. This is useful in cases where a tool only accepts certain xattr
-prefixes. For example tar2sqfs only supports SCHILY.xattr.user.*,
-SCHILY.xattr.trusted.* and SCHILY.xattr.security.* but not
-SCHILY.xattr.system.posix_acl_default.*.
+Similarly, filter out unwanted pax extended headers. This is useful in cases
+where a tool only accepts certain xattr prefixes. For example tar2sqfs only
+supports SCHILY.xattr.user.*, SCHILY.xattr.trusted.* and
+SCHILY.xattr.security.* but not SCHILY.xattr.system.posix_acl_default.*.
 
 Both types of options use Unix shell-style wildcards:
 
@@ -125,85 +65,45 @@ Both types of options use Unix shell-style wildcards:
    [seq] matches any character in seq
   [!seq] matches any character not in seq
 
-Thirdly, filter out files matching a specific tar archive member type using
---type-exclude. Valid type names are REGTYPE (regular file), LNKTYPE
-(hardlink), SYMTYPE (symlink), CHRTYPE (character special), BLKTYPE (block
-special), DIRTYPE (directory), FIFOTYPE (fifo) or their tar format flag value
-(0-6, respectively).
-
-Fourthly, transform the path of tar members using a sed expression just as with
-GNU tar --transform.
-
-Fifthly, strip leading directory components off of tar members. Just as with
+Thirdly, strip leading directory components off of tar members. Just as with
 GNU tar --strip-components, tar members that have less or equal components in
 their path are not passed through.
-
-Lastly, shift user id and group id of each entry by the value given by the
---idshift argument. The resulting uid or gid must not be negative.
-""",
+"""
     )
     parser.add_argument(
         "--path-exclude",
         metavar="pattern",
         action=PathFilterAction,
-        help="Exclude path matching the given shell pattern. "
-        "This option can be specified multiple times.",
+        help="Exclude path matching the given shell pattern.",
     )
     parser.add_argument(
         "--path-include",
         metavar="pattern",
         action=PathFilterAction,
-        help="Re-include a pattern after a previous exclusion. "
-        "This option can be specified multiple times.",
+        help="Re-include a pattern after a previous exclusion.",
     )
     parser.add_argument(
         "--pax-exclude",
         metavar="pattern",
         action=PaxFilterAction,
-        help="Exclude pax header matching the given globbing pattern. "
-        "This option can be specified multiple times.",
+        help="Exclude pax header matching the given globbing pattern.",
     )
     parser.add_argument(
         "--pax-include",
         metavar="pattern",
         action=PaxFilterAction,
-        help="Re-include a pax header after a previous exclusion. "
-        "This option can be specified multiple times.",
-    )
-    parser.add_argument(
-        "--type-exclude",
-        metavar="type",
-        action=TypeFilterAction,
-        help="Exclude certain member types by their type. Choose types either "
-        "by their name (REGTYPE, LNKTYPE, SYMTYPE, CHRTYPE, BLKTYPE, DIRTYPE, "
-        "FIFOTYPE) or by their tar format flag values (0-6, respectively). "
-        "This option can be specified multiple times.",
-    )
-    parser.add_argument(
-        "--transform",
-        "--xform",
-        metavar="EXPRESSION",
-        action=TransformAction,
-        help="Use sed replace EXPRESSION to transform file names. "
-        "This option can be specified multiple times.",
+        help="Re-include a pax header after a previous exclusion.",
     )
     parser.add_argument(
         "--strip-components",
-        metavar="NUMBER",
+        metavar="number",
         type=int,
         help="Strip NUMBER leading components from file names",
     )
-    parser.add_argument(
-        "--idshift",
-        metavar="NUM",
-        type=int,
-        help="Integer value by which to shift the uid and gid of each entry",
-    )
     args = parser.parse_args()
     if (
         not hasattr(args, "pathfilter")
         and not hasattr(args, "paxfilter")
-        and not hasattr(args, "typefilter")
         and not hasattr(args, "strip_components")
     ):
         from shutil import copyfileobj
@@ -218,22 +118,19 @@ Lastly, shift user id and group id of each entry by the value given by the
         skip = False
         if not hasattr(args, "pathfilter"):
             return False
-        # normalize path and make it absolute by stripping off all leading
-        # dots and slashes and then prepending a slash
-        name = "/" + member.name.lstrip("./")
-        for t, r in args.pathfilter:
-            if r.match(name) is not None:
+        for (t, r) in args.pathfilter:
+            if r.match(member.name[1:]) is not None:
                 if t == "path_include":
                     skip = False
                 else:
                     skip = True
         if skip and (member.isdir() or member.issym()):
-            for t, r in args.pathfilter:
+            for (t, r) in args.pathfilter:
                 if t != "path_include":
                     continue
                 prefix = prefix_prog.sub(r"\1", r.pattern)
                 prefix = prefix.rstrip("/")
-                if name.startswith(prefix):
+                if member.name[1:].startswith(prefix):
                     return False
         return skip
 
@@ -241,7 +138,7 @@ Lastly, shift user id and group id of each entry by the value given by the
         if not hasattr(args, "paxfilter"):
             return False
         skip = False
-        for t, r in args.paxfilter:
+        for (t, r) in args.paxfilter:
             if r.match(header) is None:
                 continue
             if t == "pax_include":
@@ -250,28 +147,16 @@ Lastly, shift user id and group id of each entry by the value given by the
                 skip = True
         return skip
 
-    def type_filter_should_skip(member):
-        if not hasattr(args, "typefilter"):
-            return False
-        for t in args.typefilter:
-            if member.type == t:
-                return True
-        return False
-
-    # starting with Python 3.8, the default format became PAX_FORMAT but we
-    # are still explicit here in case of future changes.
+    # starting with Python 3.8, the default format became PAX_FORMAT, so this
+    # is only for compatibility with older versions of Python 3
     with tarfile.open(fileobj=sys.stdin.buffer, mode="r|*") as in_tar, tarfile.open(
         fileobj=sys.stdout.buffer, mode="w|", format=tarfile.PAX_FORMAT
     ) as out_tar:
         for member in in_tar:
             if path_filter_should_skip(member):
                 continue
-            if type_filter_should_skip(member):
-                continue
             if args.strip_components:
                 comps = member.name.split("/")
-                # just as with GNU tar, archive members with less or equal
-                # number of components are not passed through at all
                 if len(comps) <= args.strip_components:
                     continue
                 member.name = "/".join(comps[args.strip_components :])
@@ -280,18 +165,6 @@ Lastly, shift user id and group id of each entry by the value given by the
                 for k, v in member.pax_headers.items()
                 if not pax_filter_should_skip(k)
             }
-            if args.idshift:
-                if args.idshift < 0 and -args.idshift > member.uid:
-                    print("uid cannot be negative", file=sys.stderr)
-                    exit(1)
-                if args.idshift < 0 and -args.idshift > member.gid:
-                    print("gid cannot be negative", file=sys.stderr)
-                    exit(1)
-                member.uid += args.idshift
-                member.gid += args.idshift
-            if hasattr(args, "trans"):
-                for r, s in args.trans:
-                    member.name = r.sub(s, member.name)
             if member.isfile():
                 with in_tar.extractfile(member) as file:
                     out_tar.addfile(member, file)

taridshift

@@ -0,0 +1,67 @@
+#!/usr/bin/env python3
+#
+# This script is in the public domain
+#
+# Author: Johannes Schauer Marin Rodrigues <josch@mister-muffin.de>
+#
+# This script accepts a tarball on standard input and prints a tarball on
+# standard output with the same contents but all uid and gid ownership
+# information shifted by the value given as first command line argument.
+#
+# A tool like this should be written in C but libarchive has issues:
+# https://github.com/libarchive/libarchive/issues/587
+# https://github.com/libarchive/libarchive/pull/1288/ (needs 3.4.1)
+# Should these issues get fixed, then a good template is tarfilter.c in the
+# examples directory of libarchive.
+#
+# We are not using Perl either, because Archive::Tar slurps the whole tarball
+# into memory.
+#
+# We could also use Go but meh...
+# https://stackoverflow.com/a/59542307/784669
+
+import tarfile
+import sys
+import argparse
+
+
+def main():
+    parser = argparse.ArgumentParser(
+        description="""\
+Accepts a tarball on standard input and prints a tarball on standard output
+with the same contents but all uid and gid ownership information shifted by the
+value given as first command line argument.
+"""
+    )
+    parser.add_argument(
+        "idshift",
+        metavar="NUM",
+        type=int,
+        help="Integer value by which to shift the uid and gid of each entry",
+    )
+    args = parser.parse_args()
+
+    # starting with Python 3.8, the default format became PAX_FORMAT, so this
+    # is only for compatibility with older versions of Python 3
+    with tarfile.open(fileobj=sys.stdin.buffer, mode="r|*") as in_tar, tarfile.open(
+        fileobj=sys.stdout.buffer, mode="w|", format=tarfile.PAX_FORMAT
+    ) as out_tar:
+        for member in in_tar:
+            if args.idshift < 0 and -args.idshift > member.uid:
+                print("uid cannot be negative", file=sys.stderr)
+                exit(1)
+            if args.idshift < 0 and -args.idshift > member.gid:
+                print("gid cannot be negative", file=sys.stderr)
+                exit(1)
+
+            member.uid += args.idshift
+            member.gid += args.idshift
+            if member.isfile():
+                with in_tar.extractfile(member) as file:
+                    out_tar.addfile(member, file)
+            else:
+                out_tar.addfile(member)
+
+
+if __name__ == "__main__":
+    main()

tests/apt-patterns

@@ -1,8 +0,0 @@
-#!/bin/sh
-set -eu
-export LC_ALL=C.UTF-8
-trap "rm -f /tmp/debian-chroot.tar" EXIT INT TERM
-{{ CMD }} --mode={{ MODE }} --variant=essential \
-  --include '?or(?exact-name(dummy-does-not-exist),?exact-name(apt))' \
-  {{ DIST }} /tmp/debian-chroot.tar {{ MIRROR }}
-tar -tf /tmp/debian-chroot.tar | sort | diff -u tar1.txt -

tests/apt-patterns-custom

@@ -1,12 +0,0 @@
-#!/bin/sh
-set -eu
-export LC_ALL=C.UTF-8
-trap "rm -f /tmp/debian-chroot.tar" EXIT INT TERM
-{{ CMD }} --mode={{ MODE }} --variant=custom \
-  --include '?narrow(?archive(^{{ DIST }}$),?essential)' \
-  --include apt \
-  {{ DIST }} /tmp/debian-chroot.tar {{ MIRROR }}
-{
-  tar -tf /tmp/debian-chroot.tar
-  echo ./var/lib/apt/extended_states
-} | sort | diff -u tar1.txt -

tests/aptopt

@@ -2,7 +2,7 @@
 set -eu
 export LC_ALL=C.UTF-8
 trap "rm -rf /tmp/debian-chroot; rm -f /tmp/config" EXIT INT TERM
-echo 'Acquire::Languages "none";' >/tmp/config
+echo 'Acquire::Languages "none";' > /tmp/config
 {{ CMD }} --mode=root --variant=apt --aptopt='Acquire::Check-Valid-Until "false"' --aptopt=/tmp/config {{ DIST }} /tmp/debian-chroot {{ MIRROR }}
 printf 'Acquire::Check-Valid-Until "false";\nAcquire::Languages "none";\n' | cmp /tmp/debian-chroot/etc/apt/apt.conf.d/99mmdebstrap -
 rm /tmp/debian-chroot/etc/apt/apt.conf.d/99mmdebstrap

tests/arm64-without-qemu-support

@@ -5,7 +5,7 @@ if [ ! -e /mmdebstrap-testenv ]; then
 	echo "this test modifies the system and should only be run inside a container" >&2
 	exit 1
 fi
-apt-get remove --yes qemu-user-binfmt binfmt-support qemu-user
+apt-get remove --yes qemu-user-static binfmt-support qemu-user
 # the following is not necessary anymore since systemd-binfmt
 # successfully disables support upon removal of qemu-user with
 # the upload of src:systemd 251.2-4: https://bugs.debian.org/1012163

tests/as-debootstrap-unshare-wrapper

@@ -2,57 +2,25 @@
 set -eu
 export LC_ALL=C.UTF-8
 export SOURCE_DATE_EPOCH={{ SOURCE_DATE_EPOCH }}
-
-prefix=
-if [ "$(id -u)" -eq 0 ] && [ "{{ MODE }}" != "root" ] && [ "{{ MODE }}" != "auto" ]; then
-  if ! id "${SUDO_USER:-user}" >/dev/null 2>&1; then
-    if [ ! -e /mmdebstrap-testenv ]; then
+if [ ! -e /mmdebstrap-testenv ]; then
 	echo "this test modifies the system and should only be run inside a container" >&2
 	exit 1
-    fi
-    useradd --home-dir "/home/${SUDO_USER:-user}" --create-home "${SUDO_USER:-user}"
-  fi
-  prefix="runuser -u ${SUDO_USER:-user} --"
-fi
-
-# debootstrap uses apt-config to figure out whether the system running it has
-# any proxies configured and then runs the binary to set the http_proxy
-# environment variable. This will fail if debootstrap is run in a linux user
-# namespace because auto-apt-proxy will see /tmp/.auto-apt-proxy-0 as being
-# owned by the user "nobody" and group "nogroup" and fail with:
-#   insecure cache dir /tmp/.auto-apt-proxy-0. Must be owned by UID 0 and have permissions 700
-# We cannot overwrite a configuration item using the APT_CONFIG environment
-# variable, so instead we use it to set the Dir configuration option
-# to /dev/null to force all apt settings to their defaults.
-# There is currently no better way to disable this behavior. See also:
-# https://bugs.debian.org/1031105
-# https://salsa.debian.org/installer-team/debootstrap/-/merge_requests/90
-AUTOPROXY=
-eval "$(apt-config shell AUTOPROXY Acquire::http::Proxy-Auto-Detect)"
-if [ -n "$AUTOPROXY" ] && [ -x "$AUTOPROXY" ] && [ -e /tmp/.auto-apt-proxy-0 ]; then
-  TMP_APT_CONFIG=$(mktemp)
-  echo 'Dir "/dev/null";' >"$TMP_APT_CONFIG"
-  chmod 644 "$TMP_APT_CONFIG"
-fi
-
-$prefix {{ CMD }} --variant=custom --mode={{ MODE }} \
-  --setup-hook='env '"${AUTOPROXY:+APT_CONFIG='$TMP_APT_CONFIG'}"' debootstrap --variant={{ VARIANT }} unstable "$1" {{ MIRROR }}' \
-  - /tmp/debian-mm.tar {{ MIRROR }}
-if [ -n "$AUTOPROXY" ] && [ -x "$AUTOPROXY" ] && [ -e /tmp/.auto-apt-proxy-0 ]; then
-  rm "$TMP_APT_CONFIG"
 fi
+sysctl -w kernel.unprivileged_userns_clone=1
+adduser --gecos user --disabled-password user
+runuser -u user -- {{ CMD }} --variant=custom --mode=unshare --setup-hook='env container=lxc debootstrap unstable "$1" {{ MIRROR }}' - /tmp/debian-mm.tar {{ MIRROR }}
 
 mkdir /tmp/debian-mm
 tar --xattrs --xattrs-include='*' -C /tmp/debian-mm -xf /tmp/debian-mm.tar
 
 mkdir /tmp/debian-debootstrap
-tar --xattrs --xattrs-include='*' -C /tmp/debian-debootstrap -xf "cache/debian-unstable-{{ VARIANT }}.tar"
+tar --xattrs --xattrs-include='*' -C /tmp/debian-debootstrap -xf "cache/debian-unstable--.tar"
 
 # diff cannot compare device nodes, so we use tar to do that for us and then
 # delete the directory
 tar -C /tmp/debian-debootstrap -cf dev1.tar ./dev
 tar -C /tmp/debian-mm -cf dev2.tar ./dev
-cmp dev1.tar dev2.tar >&2
+cmp dev1.tar dev2.tar
 rm dev1.tar dev2.tar
 rm -r /tmp/debian-debootstrap/dev /tmp/debian-mm/dev
 
@@ -66,47 +34,17 @@ rm /tmp/debian-debootstrap/var/log/dpkg.log \
 	/tmp/debian-debootstrap/var/log/alternatives.log \
 	/tmp/debian-mm/var/log/bootstrap.log
 
-# clear out /run except for /run/lock
-find /tmp/debian-debootstrap/run/ -mindepth 1 -maxdepth 1 ! -name lock -print0 | xargs --no-run-if-empty -0 rm -r
-
 # debootstrap doesn't clean apt
 rm /tmp/debian-debootstrap/var/lib/apt/lists/127.0.0.1_debian_dists_unstable_main_binary-{{ HOSTARCH }}_Packages \
-  /tmp/debian-debootstrap/var/lib/apt/lists/127.0.0.1_debian_dists_unstable_InRelease \
 	/tmp/debian-debootstrap/var/lib/apt/lists/127.0.0.1_debian_dists_unstable_Release \
 	/tmp/debian-debootstrap/var/lib/apt/lists/127.0.0.1_debian_dists_unstable_Release.gpg
 
-if [ -e /tmp/debian-debootstrap/etc/machine-id ]; then
-  rm /tmp/debian-debootstrap/etc/machine-id /tmp/debian-mm/etc/machine-id
-fi
+rm /tmp/debian-debootstrap/etc/machine-id /tmp/debian-mm/etc/machine-id
 rm /tmp/debian-mm/var/cache/apt/archives/lock
 rm /tmp/debian-mm/var/lib/apt/lists/lock
-rm /tmp/debian-mm/var/lib/dpkg/arch
-
-# also needed for users that are created by systemd-sysusers before systemd 252
-# https://github.com/systemd/systemd/pull/24534
-for f in shadow shadow-; do
-  if [ ! -e /tmp/debian-debootstrap/etc/$f ]; then
-    continue
-  fi
-  if ! cmp /tmp/debian-debootstrap/etc/$f /tmp/debian-mm/etc/$f >&2; then
-    echo patching /etc/$f >&2
-    awk -v FS=: -v OFS=: -v SDE={{ SOURCE_DATE_EPOCH }} '{ print $1,$2,int(SDE/60/60/24),$4,$5,$6,$7,$8,$9 }' </tmp/debian-mm/etc/$f >/tmp/debian-mm/etc/$f.bak
-    cat /tmp/debian-mm/etc/$f.bak >/tmp/debian-mm/etc/$f
-    rm /tmp/debian-mm/etc/$f.bak
-  else
-    echo no difference for /etc/$f >&2
-  fi
-done
-
-# isc-dhcp-client postinst doesn't create this file in debootstrap run with
-# unshared wrapper. The responsible postinst snippet was automatically added
-# by dh_apparmor since isc-dhcp-client 4.4.3-P1-1.1
-if [ -e /tmp/debian-debootstrap/etc/apparmor.d/local/sbin.dhclient ] && [ ! -s /tmp/debian-debootstrap/etc/apparmor.d/local/sbin.dhclient ]; then
-  echo /sbin/setcap >/tmp/debian-debootstrap/etc/apparmor.d/local/sbin.dhclient
-fi
 
 # check if the file content differs
-diff --unified --no-dereference --recursive /tmp/debian-debootstrap /tmp/debian-mm >&2
+diff --no-dereference --recursive /tmp/debian-debootstrap /tmp/debian-mm
 
 # check permissions, ownership, symlink targets, modification times using tar
 # mtimes of directories created by mmdebstrap will differ, thus we equalize them first
@@ -118,15 +56,15 @@ for d in ./var/lib/apt/lists/partial ./var/cache/apt/archives/partial; do
 	chroot /tmp/debian-debootstrap chmod 0700 $d
 	chroot /tmp/debian-debootstrap chown _apt:root $d
 done
-tar -C /tmp/debian-debootstrap --numeric-owner --xattrs --xattrs-include='*' --sort=name --clamp-mtime --mtime="$(date --utc --date=@{{ SOURCE_DATE_EPOCH }} --iso-8601=seconds)" -cf /tmp/root1.tar .
-tar -C /tmp/debian-mm --numeric-owner --xattrs --xattrs-include='*' --sort=name --clamp-mtime --mtime="$(date --utc --date=@{{ SOURCE_DATE_EPOCH }} --iso-8601=seconds)" -cf /tmp/root2.tar .
-tar --full-time --verbose -tf /tmp/root1.tar >/tmp/root1.tar.list
-tar --full-time --verbose -tf /tmp/root2.tar >/tmp/root2.tar.list
+tar -C /tmp/debian-debootstrap --numeric-owner --xattrs --xattrs-include='*' --sort=name --clamp-mtime --mtime=$(date --utc --date=@{{ SOURCE_DATE_EPOCH }} --iso-8601=seconds) -cf /tmp/root1.tar .
+tar -C /tmp/debian-mm --numeric-owner --xattrs --xattrs-include='*' --sort=name --clamp-mtime --mtime=$(date --utc --date=@{{ SOURCE_DATE_EPOCH }} --iso-8601=seconds) -cf /tmp/root2.tar .
+tar --full-time --verbose -tf /tmp/root1.tar > /tmp/root1.tar.list
+tar --full-time --verbose -tf /tmp/root2.tar > /tmp/root2.tar.list
 # despite SOURCE_DATE_EPOCH and --clamp-mtime, the timestamps in the tarball
 # will slightly differ from each other in the sub-second precision (last
 # decimals) so the tarballs will not be identical, so we use diff to compare
 # content and tar to compare attributes
-diff -u /tmp/root1.tar.list /tmp/root2.tar.list >&2
+diff -u /tmp/root1.tar.list /tmp/root2.tar.list
 rm /tmp/root1.tar /tmp/root2.tar /tmp/root1.tar.list /tmp/root2.tar.list
 
 rm /tmp/debian-mm.tar

tests/ascii-armored-keys

@@ -5,17 +5,14 @@ if [ ! -e /mmdebstrap-testenv ]; then
 	echo "this test modifies the system and should only be run inside a container" >&2
 	exit 1
 fi
-for f in /etc/apt/trusted.gpg.d/*.gpg /etc/apt/trusted.gpg.d/*.asc; do
-  [ -e "$f" ] || continue
-  rm "$f"
-done
-rmdir /etc/apt/trusted.gpg.d
-mkdir /etc/apt/trusted.gpg.d
 for f in /usr/share/keyrings/*.gpg; do
 	name=$(basename "$f" .gpg)
-  gpg --no-default-keyring --keyring="/usr/share/keyrings/$name.gpg" --armor --output="/etc/apt/trusted.gpg.d/$name.asc" --export
-  rm "/usr/share/keyrings/$name.gpg"
+	gpg --enarmor < /usr/share/keyrings/$name.gpg \
+		| sed 's/ PGP ARMORED FILE/ PGP PUBLIC KEY BLOCK/;/^Comment: /d' \
+		> /etc/apt/trusted.gpg.d/$name.asc
 done
+rm /etc/apt/trusted.gpg.d/*.gpg
+rm /usr/share/keyrings/*.gpg
 {{ CMD }} --mode=root --variant=apt {{ DIST }} /tmp/debian-chroot.tar {{ MIRROR }}
 tar -tf /tmp/debian-chroot.tar | sort | diff -u tar1.txt -
 rm -r /tmp/debian-chroot.tar

tests/aspcud-apt-solver

@@ -3,12 +3,9 @@ set -eu
 export LC_ALL=C.UTF-8
 trap "rm -f /tmp/debian-chroot.tar" EXIT INT TERM
 {{ CMD }} --mode={{ MODE }} --variant=custom \
-  --include "$(tr '\n' ',' <pkglist.txt)" \
+    --include $(cat pkglist.txt | tr '\n' ',') \
     --aptopt='APT::Solver "aspcud"' \
     {{ DIST }} /tmp/debian-chroot.tar {{ MIRROR }}
-{
-  tar -tf /tmp/debian-chroot.tar
-  echo ./var/lib/apt/extended_states
-} | sort \
+tar -tf /tmp/debian-chroot.tar | sort \
     | grep -v '^./etc/apt/apt.conf.d/99mmdebstrap$' \
     | diff -u tar1.txt -

tests/auto-mode-as-normal-user

@@ -1,22 +0,0 @@
-#!/bin/sh
-set -eu
-export LC_ALL=C.UTF-8
-
-trap "rm -f /tmp/debian-chroot.tar.gz" EXIT INT TERM
-
-[ {{ MODE }} = "auto" ]
-
-prefix=
-if [ "$(id -u)" -eq 0 ]; then
-  if ! id "${SUDO_USER:-user}" >/dev/null 2>&1; then
-    if [ ! -e /mmdebstrap-testenv ]; then
-      echo "this test modifies the system and should only be run inside a container" >&2
-      exit 1
-    fi
-    useradd --home-dir "/home/${SUDO_USER:-user}" --create-home "${SUDO_USER:-user}"
-  fi
-  prefix="runuser -u ${SUDO_USER:-user} --"
-fi
-
-$prefix {{ CMD }} --mode={{ MODE }} --variant=apt {{ DIST }} /tmp/debian-chroot.tar.gz {{ MIRROR }}
-tar -tf /tmp/debian-chroot.tar.gz | sort | diff -u tar1.txt -

tests/auto-mode-without-unshare-capabilities

@@ -5,10 +5,8 @@ if [ ! -e /mmdebstrap-testenv ]; then
 	echo "this test modifies the system and should only be run inside a container" >&2
 	exit 1
 fi
-useradd --home-dir /home/user --create-home user
-if [ -e /proc/sys/kernel/unprivileged_userns_clone ] && [ "$(sysctl -n kernel.unprivileged_userns_clone)" = "1" ]; then
-  sysctl -w kernel.unprivileged_userns_clone=0
-fi
+adduser --gecos user --disabled-password user
+sysctl -w kernel.unprivileged_userns_clone=0
 runuser -u user -- {{ CMD }} --mode=auto --variant=apt {{ DIST }} /tmp/debian-chroot.tar.gz {{ MIRROR }}
 tar -tf /tmp/debian-chroot.tar.gz | sort | diff -u tar1.txt -
 rm /tmp/debian-chroot.tar.gz

tests/automatic-mirror-from-suite

@@ -5,7 +5,7 @@ if [ ! -e /mmdebstrap-testenv ]; then
 	echo "this test modifies the system and should only be run inside a container" >&2
 	exit 1
 fi
-cat <<HOSTS >>/etc/hosts
+cat << HOSTS >> /etc/hosts
 127.0.0.1 deb.debian.org
 127.0.0.1 security.debian.org
 HOSTS

tests/check-against-debootstrap-dist

@@ -10,10 +10,14 @@ echo "SOURCE_DATE_EPOCH=$SOURCE_DATE_EPOCH"
 # order in comparison to the systemd users
 # https://bugs.debian.org/969631
 # we cannot use useradd because passwd is not Essential:yes
+#
+# with cron 3.0pl1-142 and the introduction of cron-daemon-common, installation
+# order of cron and systemd started to differ between debootstrap and
+# mmdebstrap, resulting in different gid values
 {{ CMD }} --variant={{ VARIANT }} --mode={{ MODE }} \
-  --essential-hook='[ {{ DIST }} = oldstable ] && [ {{ VARIANT }} = - ] && echo _apt:*:100:65534::/nonexistent:/usr/sbin/nologin >> "$1"/etc/passwd || :' \
-  "$(if [ {{ DIST }} = oldstable ]; then echo --merged-usr; else echo --hook-dir=./hooks/merged-usr; fi)" \
-  "$(case {{ DIST }} in oldstable) echo --include=e2fsprogs,mount,tzdata,gcc-9-base ;; stable) echo --include=e2fsprogs,mount,tzdata ;; *) echo --include=base-files ;; esac)" \
+	--essential-hook='if [ {{ VARIANT }} = - ]; then echo _apt:*:100:65534::/nonexistent:/usr/sbin/nologin >> "$1"/etc/passwd; fi' \
+	--essential-hook='if [ {{ VARIANT }} = - ] && [ {{ DIST }} = unstable -o {{ DIST }} = testing ]; then printf "systemd-journal:x:101:\nsystemd-network:x:102:\nsystemd-resolve:x:103:\ncrontab:x:104:" >> "$1"/etc/group; fi' \
+	$(case {{ DIST }} in oldstable|stable) : ;; *) echo --hook-dir=./hooks/merged-usr ;; esac) \
 	{{ DIST }} /tmp/debian-{{ DIST }}-mm.tar {{ MIRROR }}
 
 mkdir /tmp/debian-{{ DIST }}-mm
@@ -25,34 +29,34 @@ tar --xattrs --xattrs-include='*' -C /tmp/debian-{{ DIST }}-debootstrap -xf "cac
 
 # diff cannot compare device nodes, so we use tar to do that for us and then
 # delete the directory
-tar -C /tmp/debian-{{ DIST }}-debootstrap -cf /tmp/dev1.tar ./dev
-tar -C /tmp/debian-{{ DIST }}-mm -cf /tmp/dev2.tar ./dev
+tar -C /tmp/debian-{{ DIST }}-debootstrap -cf dev1.tar ./dev
+tar -C /tmp/debian-{{ DIST }}-mm -cf dev2.tar ./dev
 ret=0
-cmp /tmp/dev1.tar /tmp/dev2.tar >&2 || ret=$?
+cmp dev1.tar dev2.tar || ret=$?
 if [ "$ret" -ne 0 ]; then
 	if type diffoscope >/dev/null; then
-    diffoscope /tmp/dev1.tar /tmp/dev2.tar
+		diffoscope dev1.tar dev2.tar
 		exit 1
 	else
 		echo "no diffoscope installed" >&2
 	fi
 	if type base64 >/dev/null; then
-    base64 /tmp/dev1.tar
-    base64 /tmp/dev2.tar
+		base64 dev1.tar
+		base64 dev2.tar
 		exit 1
 	else
 		echo "no base64 installed" >&2
 	fi
 	if type xxd >/dev/null; then
-    xxd /tmp/dev1.tar
-    xxd /tmp/dev2.tar
+		xxd dev1.tar
+		xxd dev2.tar
 		exit 1
 	else
 		echo "no xxd installed" >&2
 	fi
 	exit 1
 fi
-rm /tmp/dev1.tar /tmp/dev2.tar
+rm dev1.tar dev2.tar
 rm -r /tmp/debian-{{ DIST }}-debootstrap/dev /tmp/debian-{{ DIST }}-mm/dev
 
 # remove downloaded deb packages
@@ -70,23 +74,19 @@ rm /tmp/debian-{{ DIST }}-debootstrap/var/cache/debconf/templates.dat-old \
 	/tmp/debian-{{ DIST }}-mm/var/cache/debconf/templates.dat-old
 rm /tmp/debian-{{ DIST }}-debootstrap/var/lib/dpkg/status-old \
 	/tmp/debian-{{ DIST }}-mm/var/lib/dpkg/status-old
-rm -f /tmp/debian-{{ DIST }}-debootstrap/var/lib/dpkg/diversions-old \
-  /tmp/debian-{{ DIST }}-mm/var/lib/dpkg/diversions-old
 # remove dpkg files
 rm /tmp/debian-{{ DIST }}-debootstrap/var/lib/dpkg/available
 rm /tmp/debian-{{ DIST }}-debootstrap/var/lib/dpkg/cmethopt
-# remove /var/lib/dpkg/arch
-rm /tmp/debian-{{ DIST }}-mm/var/lib/dpkg/arch
 # since we installed packages directly from the .deb files, Priorities differ
 # thus we first check for equality and then remove the files
-chroot /tmp/debian-{{ DIST }}-debootstrap dpkg --list >/tmp/dpkg1
-chroot /tmp/debian-{{ DIST }}-mm dpkg --list >/tmp/dpkg2
-diff -u /tmp/dpkg1 /tmp/dpkg2 >&2
-rm /tmp/dpkg1 /tmp/dpkg2
-grep -v '^Priority: ' /tmp/debian-{{ DIST }}-debootstrap/var/lib/dpkg/status >/tmp/status1
-grep -v '^Priority: ' /tmp/debian-{{ DIST }}-mm/var/lib/dpkg/status >/tmp/status2
-diff -u /tmp/status1 /tmp/status2 >&2
-rm /tmp/status1 /tmp/status2
+chroot /tmp/debian-{{ DIST }}-debootstrap dpkg --list > dpkg1
+chroot /tmp/debian-{{ DIST }}-mm dpkg --list > dpkg2
+diff -u dpkg1 dpkg2
+rm dpkg1 dpkg2
+grep -v '^Priority: ' /tmp/debian-{{ DIST }}-debootstrap/var/lib/dpkg/status > status1
+grep -v '^Priority: ' /tmp/debian-{{ DIST }}-mm/var/lib/dpkg/status > status2
+diff -u status1 status2
+rm status1 status2
 rm /tmp/debian-{{ DIST }}-debootstrap/var/lib/dpkg/status /tmp/debian-{{ DIST }}-mm/var/lib/dpkg/status
 # debootstrap exposes the hosts's kernel version
 if [ -e /tmp/debian-{{ DIST }}-debootstrap/etc/apt/apt.conf.d/01autoremove-kernels ]; then
@@ -95,11 +95,15 @@ fi
 if [ -e /tmp/debian-{{ DIST }}-mm/etc/apt/apt.conf.d/01autoremove-kernels ]; then
 	rm /tmp/debian-{{ DIST }}-mm/etc/apt/apt.conf.d/01autoremove-kernels
 fi
-# clear out /run except for /run/lock
-find /tmp/debian-{{ DIST }}-debootstrap/run/ -mindepth 1 -maxdepth 1 ! -name lock -print0 | xargs --no-run-if-empty -0 rm -r
+# who creates /run/mount?
+if [ -e "/tmp/debian-{{ DIST }}-debootstrap/run/mount/utab" ]; then
+	rm "/tmp/debian-{{ DIST }}-debootstrap/run/mount/utab"
+fi
+if [ -e "/tmp/debian-{{ DIST }}-debootstrap/run/mount" ]; then
+	rmdir "/tmp/debian-{{ DIST }}-debootstrap/run/mount"
+fi
 # debootstrap doesn't clean apt
 rm /tmp/debian-{{ DIST }}-debootstrap/var/lib/apt/lists/127.0.0.1_debian_dists_{{ DIST }}_main_binary-{{ HOSTARCH }}_Packages \
-  /tmp/debian-{{ DIST }}-debootstrap/var/lib/apt/lists/127.0.0.1_debian_dists_{{ DIST }}_InRelease \
 	/tmp/debian-{{ DIST }}-debootstrap/var/lib/apt/lists/127.0.0.1_debian_dists_{{ DIST }}_Release \
 	/tmp/debian-{{ DIST }}-debootstrap/var/lib/apt/lists/127.0.0.1_debian_dists_{{ DIST }}_Release.gpg
 
@@ -109,9 +113,11 @@ if [ "{{ VARIANT }}" = "-" ]; then
 	rm /tmp/debian-{{ DIST }}-debootstrap/var/lib/systemd/catalog/database
 	rm /tmp/debian-{{ DIST }}-mm/var/lib/systemd/catalog/database
 
-  case {{ DIST }} in oldstable | stable)
 	cap=$(chroot /tmp/debian-{{ DIST }}-debootstrap /sbin/getcap /bin/ping)
 	expected="/bin/ping cap_net_raw=ep"
+	if [ "{{ DIST }}" = oldstable ]; then
+		expected="/bin/ping = cap_net_raw+ep"
+	fi
 	if [ "$cap" != "$expected" ]; then
 		echo "expected bin/ping to have capabilities $expected" >&2
 		echo "but debootstrap produced: $cap" >&2
@@ -123,10 +129,7 @@ if [ "{{ VARIANT }}" = "-" ]; then
 		echo "but mmdebstrap produced: $cap" >&2
 		exit 1
 	fi
-    ;;
-  esac
 fi
-
 rm /tmp/debian-{{ DIST }}-mm/var/cache/apt/archives/lock
 rm /tmp/debian-{{ DIST }}-mm/var/lib/apt/extended_states
 rm /tmp/debian-{{ DIST }}-mm/var/lib/apt/lists/lock
@@ -141,7 +144,7 @@ for f in "/var/lib/dpkg/triggers/File" "/etc/shells"; do
 		continue
 	fi
 	# the file must be different
-  if cmp "$f1" "$f2" >&2; then
+	if cmp "$f1" "$f2"; then
 		continue
 	fi
 	# then sort both
@@ -152,84 +155,50 @@ done
 # Because of unreproducible uids (#969631) we created the _apt user ourselves
 # and because passwd is not Essential:yes we didn't use useradd. But newer
 # versions of adduser and shadow will create a different /etc/shadow
-if [ "{{ VARIANT }}" = "-" ] && [ "{{ DIST}}" = oldstable ]; then
-  for f in shadow shadow-; do
+for f in shadow shadow-; do
 	if grep -q '^_apt:!:' /tmp/debian-{{ DIST }}-debootstrap/etc/$f; then
 		sed -i 's/^_apt:\*:\([^:]\+\):0:99999:7:::$/_apt:!:\1::::::/' /tmp/debian-{{ DIST }}-mm/etc/$f
 	fi
+done
+# same as above but for cron and systemd groups
+for f in gshadow gshadow-; do
+	for group in systemd-journal systemd-network systemd-resolve crontab; do
+		if grep -q '^'"$group"':!:' /tmp/debian-{{ DIST }}-debootstrap/etc/$f; then
+			sed -i 's/^'"$group"':x::/'"$group"':!::/' /tmp/debian-{{ DIST }}-mm/etc/$f
+		fi
 	done
-fi
-
-for log in faillog lastlog; do
-  f1="/tmp/debian-{{ DIST }}-debootstrap/var/log/$log"
-  f2="/tmp/debian-{{ DIST }}-mm/var/log/$log"
-  # skip cmp if file is absent in both chroots
-  if [ ! -e "$f1" ] && [ ! -e "$f2" ]; then
-    continue
-  fi
-  if ! cmp "$f1" "$f2" >&2; then
-    # if the files differ, make sure they are all zeroes
-    cmp -n "$(stat -c %s "$f1")" "$f1" /dev/zero >&2
-    cmp -n "$(stat -c %s "$f2")" "$f2" /dev/zero >&2
-    # then delete them
-    rm "$f1" "$f2"
-  fi
 done
 
-if [ "{{ VARIANT }}" = "-" ]; then
-  # the order in which systemd and cron get installed differ and thus the order
-  # of lines in /etc/group and /etc/gshadow differs
-  for f in group group- gshadow gshadow-; do
-    for d in mm debootstrap; do
-      sort /tmp/debian-{{ DIST }}-$d/etc/$f >/tmp/debian-{{ DIST }}-$d/etc/$f.bak
-      mv /tmp/debian-{{ DIST }}-$d/etc/$f.bak /tmp/debian-{{ DIST }}-$d/etc/$f
-    done
-  done
-  # the order in which systemd and passwd get installed differ and thus
-  # the order of lines in /etc/shadow and /etc/shadow- differs
-  for f in shadow shadow-; do
-    for d in mm debootstrap; do
-      sort /tmp/debian-{{ DIST }}-$d/etc/$f >/tmp/debian-{{ DIST }}-$d/etc/$f.bak
-      mv /tmp/debian-{{ DIST }}-$d/etc/$f.bak /tmp/debian-{{ DIST }}-$d/etc/$f
-    done
-  done
-  # and since the order was different, ignore the *- files
-  for f in shadow- passwd-; do
-    for d in mm debootstrap; do
-      rm /tmp/debian-{{ DIST }}-$d/etc/$f
-    done
-  done
+# workaround for https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=917773
+if ! cmp /tmp/debian-{{ DIST }}-debootstrap/etc/shadow /tmp/debian-{{ DIST }}-mm/etc/shadow; then
+	echo patching /etc/shadow on {{ DIST }} {{ VARIANT }} >&2
+	awk -v FS=: -v OFS=: -v SDE={{ SOURCE_DATE_EPOCH }} '{ print $1,$2,int(SDE/60/60/24),$4,$5,$6,$7,$8,$9 }' < /tmp/debian-{{ DIST }}-mm/etc/shadow > /tmp/debian-{{ DIST }}-mm/etc/shadow.bak
+	cat /tmp/debian-{{ DIST }}-mm/etc/shadow.bak > /tmp/debian-{{ DIST }}-mm/etc/shadow
+	rm /tmp/debian-{{ DIST }}-mm/etc/shadow.bak
+else
+	echo no difference for /etc/shadow on {{ DIST }} {{ VARIANT }} >&2
+fi
+if ! cmp /tmp/debian-{{ DIST }}-debootstrap/etc/shadow- /tmp/debian-{{ DIST }}-mm/etc/shadow-; then
+	echo patching /etc/shadow- on {{ DIST }} {{ VARIANT }} >&2
+	awk -v FS=: -v OFS=: -v SDE={{ SOURCE_DATE_EPOCH }} '{ print $1,$2,int(SDE/60/60/24),$4,$5,$6,$7,$8,$9 }' < /tmp/debian-{{ DIST }}-mm/etc/shadow- > /tmp/debian-{{ DIST }}-mm/etc/shadow-.bak
+	cat /tmp/debian-{{ DIST }}-mm/etc/shadow-.bak > /tmp/debian-{{ DIST }}-mm/etc/shadow-
+	rm /tmp/debian-{{ DIST }}-mm/etc/shadow-.bak
+else
+	echo no difference for /etc/shadow- on {{ DIST }} {{ VARIANT }} >&2
 fi
 
-# since debootstrap 1.0.133 there is no tzdata in the buildd variant and thus
-# debootstrap creates its own /etc/localtime
-if [ "{{ VARIANT }}" = "buildd" ] && [ "{{ DIST }}" != "stable" ] && [ "{{ DIST }}" != "oldstable" ]; then
-  [ "$(readlink /tmp/debian-{{ DIST }}-debootstrap/etc/localtime)" = /usr/share/zoneinfo/UTC ]
-  rm /tmp/debian-{{ DIST }}-debootstrap/etc/localtime
+# Because of unreproducible uids (#969631) we created the _apt user ourselves
+# and because passwd is not Essential:yes we didn't use useradd. But passwd
+# since 1:4.11.1+dfsg1-1 will create empty mail files, so we create it too.
+# https://bugs.debian.org/1004710
+if [ {{ VARIANT }} = - ]; then
+	if [ -e /tmp/debian-{{ DIST }}-debootstrap/var/mail/_apt ]; then
+		touch /tmp/debian-{{ DIST }}-mm/var/mail/_apt
+		chmod 660 /tmp/debian-{{ DIST }}-mm/var/mail/_apt
+		chown 100:8 /tmp/debian-{{ DIST }}-mm/var/mail/_apt
+	fi
 fi
 
-# starting with systemd 255 upstream dropped splitusr support and depending on
-# the installation order, symlink targets are prefixed with /usr or not
-# See #1060000 and #1054137
-case {{ DIST }} in testing | unstable)
-  for f in multi-user.target.wants/e2scrub_reap.service timers.target.wants/apt-daily-upgrade.timer timers.target.wants/apt-daily.timer timers.target.wants/e2scrub_all.timer; do
-    for d in mm debootstrap; do
-      [ -L "/tmp/debian-{{ DIST }}-$d/etc/systemd/system/$f" ] || continue
-      oldlink="$(readlink "/tmp/debian-{{ DIST }}-$d/etc/systemd/system/$f")"
-      case $oldlink in
-        /usr/*) : ;;
-        /*) oldlink="/usr$oldlink" ;;
-        *)
-          echo unexpected >&2
-          exit 1
-          ;;
-      esac
-      ln -sf "$oldlink" "/tmp/debian-{{ DIST }}-$d/etc/systemd/system/$f"
-    done
-  done
-  ;;
-esac
-
 # check if the file content differs
 diff --unified --no-dereference --recursive /tmp/debian-{{ DIST }}-debootstrap /tmp/debian-{{ DIST }}-mm >&2
 
@@ -238,15 +207,14 @@ diff --unified --no-dereference --recursive /tmp/debian-{{ DIST }}-debootstrap /
 find /tmp/debian-{{ DIST }}-debootstrap /tmp/debian-{{ DIST }}-mm -type d -print0 | xargs -0 touch --date="@{{ SOURCE_DATE_EPOCH }}"
 # debootstrap never ran apt -- fixing permissions
 for d in ./var/lib/apt/lists/partial ./var/cache/apt/archives/partial; do
-  unmergedPATH="$PATH$(if [ "{{ DIST }}" = oldstable ]; then echo :/bin:/sbin; fi)"
-  PATH="$unmergedPATH" chroot /tmp/debian-{{ DIST }}-debootstrap chmod 0700 $d
-  PATH="$unmergedPATH" chroot /tmp/debian-{{ DIST }}-debootstrap chown "$(id -u _apt):root" $d
+	chroot /tmp/debian-{{ DIST }}-debootstrap chmod 0700 $d
+	chroot /tmp/debian-{{ DIST }}-debootstrap chown _apt:root $d
 done
-tar -C /tmp/debian-{{ DIST }}-debootstrap --numeric-owner --sort=name --clamp-mtime --mtime="$(date --utc --date=@{{ SOURCE_DATE_EPOCH }} --iso-8601=seconds)" -cf /tmp/root1.tar .
-tar -C /tmp/debian-{{ DIST }}-mm --numeric-owner --sort=name --clamp-mtime --mtime="$(date --utc --date=@{{ SOURCE_DATE_EPOCH }} --iso-8601=seconds)" -cf /tmp/root2.tar .
-tar --full-time --verbose -tf /tmp/root1.tar >/tmp/root1.tar.list
-tar --full-time --verbose -tf /tmp/root2.tar >/tmp/root2.tar.list
-diff -u /tmp/root1.tar.list /tmp/root2.tar.list >&2
+tar -C /tmp/debian-{{ DIST }}-debootstrap --numeric-owner --sort=name --clamp-mtime --mtime=$(date --utc --date=@{{ SOURCE_DATE_EPOCH }} --iso-8601=seconds) -cf /tmp/root1.tar .
+tar -C /tmp/debian-{{ DIST }}-mm --numeric-owner --sort=name --clamp-mtime --mtime=$(date --utc --date=@{{ SOURCE_DATE_EPOCH }} --iso-8601=seconds) -cf /tmp/root2.tar .
+tar --full-time --verbose -tf /tmp/root1.tar > /tmp/root1.tar.list
+tar --full-time --verbose -tf /tmp/root2.tar > /tmp/root2.tar.list
+diff -u /tmp/root1.tar.list /tmp/root2.tar.list
 rm /tmp/root1.tar /tmp/root2.tar /tmp/root1.tar.list /tmp/root2.tar.list
 
 # check if file properties (permissions, ownership, symlink names, modification time) differ

tests/check-for-bit-by-bit-identical-format-output

@@ -1,28 +1,35 @@
 #!/bin/sh
 set -eu
 export LC_ALL=C.UTF-8
-export SOURCE_DATE_EPOCH={{ SOURCE_DATE_EPOCH }}
-
-trap "rm -f /tmp/debian-chroot-{{ MODE }}.{{ FORMAT }}" EXIT INT TERM
-
-case {{ MODE }} in unshare | fakechroot) : ;; *) exit 1 ;; esac
-
-prefix=
-if [ "$(id -u)" -eq 0 ] && [ "{{ MODE }}" != "root" ] && [ "{{ MODE }}" != "auto" ]; then
-  if ! id "${SUDO_USER:-user}" >/dev/null 2>&1; then
-    if [ ! -e /mmdebstrap-testenv ]; then
+if [ ! -e /mmdebstrap-testenv ]; then
 	echo "this test modifies the system and should only be run inside a container" >&2
 	exit 1
-    fi
-    useradd --home-dir "/home/${SUDO_USER:-user}" --create-home "${SUDO_USER:-user}"
-  fi
-  prefix="runuser -u ${SUDO_USER:-user} --"
 fi
-
-$prefix {{ CMD }} --mode={{ MODE }} --variant={{ VARIANT }} {{ DIST }} /tmp/debian-chroot-{{ MODE }}.{{ FORMAT }} {{ MIRROR }}
-cmp ./cache/mmdebstrap-{{ DIST }}-{{ VARIANT }}.{{ FORMAT }} /tmp/debian-chroot-{{ MODE }}.{{ FORMAT }} \
-  || diffoscope ./cache/mmdebstrap-{{ DIST }}-{{ VARIANT }}.{{ FORMAT }} /tmp/debian-chroot-{{ MODE }}.{{ FORMAT }}
-
-# we cannot test chrootless mode here, because mmdebstrap relies on the
-# usrmerge package to set up merged-/usr and that doesn't work in chrootless
-# mode
+adduser --gecos user --disabled-password user
+sysctl -w kernel.unprivileged_userns_clone=1
+export SOURCE_DATE_EPOCH={{ SOURCE_DATE_EPOCH }}
+mount -o size=4G -t tmpfs tmpfs /tmp # workaround for #1010957
+{{ CMD }} --mode=root --variant={{ VARIANT }} {{ DIST }} /tmp/debian-chroot-root.{{ FORMAT }} {{ MIRROR }}
+if [ "{{ FORMAT }}" = tar ]; then
+	printf 'ustar ' | cmp --bytes=6 --ignore-initial=257:0 /tmp/debian-chroot-root.tar -
+elif [ "{{ FORMAT }}" = squashfs ]; then
+	printf 'hsqs' | cmp --bytes=4 /tmp/debian-chroot-root.squashfs -
+elif [ "{{ FORMAT }}" = ext2 ]; then
+	printf '\123\357' | cmp --bytes=2 --ignore-initial=1080:0 /tmp/debian-chroot-root.ext2 -
+else
+	echo "unknown format: {{ FORMAT }}" >&2
+	exit 1
+fi
+runuser -u user -- {{ CMD }} --mode=unshare --variant={{ VARIANT }} {{ DIST }} /tmp/debian-chroot-unshare.{{ FORMAT }} {{ MIRROR }}
+cmp /tmp/debian-chroot-root.{{ FORMAT }} /tmp/debian-chroot-unshare.{{ FORMAT }}
+rm /tmp/debian-chroot-unshare.{{ FORMAT }}
+case {{ VARIANT }} in essential|apt|minbase|buildd)
+	# variants important and standard differ because permissions drwxr-sr-x
+	# and extended attributes of ./var/log/journal/ cannot be preserved
+	# in fakechroot mode
+	runuser -u user -- {{ CMD }} --mode=fakechroot --variant={{ VARIANT }} {{ DIST }} /tmp/debian-chroot-fakechroot.{{ FORMAT }} {{ MIRROR }}
+	cmp /tmp/debian-chroot-root.{{ FORMAT }} /tmp/debian-chroot-fakechroot.{{ FORMAT }}
+	rm /tmp/debian-chroot-fakechroot.{{ FORMAT }}
+	;;
+esac
+rm /tmp/debian-chroot-root.{{ FORMAT }}

tests/chrootless

@@ -1,16 +0,0 @@
-#!/bin/sh
-set -eu
-export LC_ALL=C.UTF-8
-export SOURCE_DATE_EPOCH={{ SOURCE_DATE_EPOCH }}
-trap "rm -f /tmp/chrootless.tar /tmp/root.tar" EXIT INT TERM
-# we need --hook-dir=./hooks/merged-usr because usrmerge does not understand
-# DPKG_ROOT
-for INCLUDE in '' 'apt' 'apt,build-essential' 'systemd-sysv'; do
-  for MODE in root chrootless; do
-    {{ CMD }} --mode=$MODE --variant={{ VARIANT }} --hook-dir=./hooks/merged-usr \
-      ${INCLUDE:+--include="$INCLUDE"} --skip=check/chrootless \
-      {{ DIST }} "/tmp/$MODE.tar" {{ MIRROR }}
-  done
-  cmp /tmp/root.tar /tmp/chrootless.tar || diffoscope /tmp/root.tar /tmp/chrootless.tar
-  rm /tmp/chrootless.tar /tmp/root.tar
-done

tests/chrootless-fakeroot

@@ -1,43 +0,0 @@
-#!/bin/sh
-set -eu
-export LC_ALL=C.UTF-8
-export SOURCE_DATE_EPOCH={{ SOURCE_DATE_EPOCH }}
-trap "rm -f /tmp/chrootless.tar /tmp/root.tar" EXIT INT TERM
-
-[ {{ MODE }} = chrootless ]
-
-prefix=
-if [ "$(id -u)" -eq 0 ] && [ "{{ MODE }}" != "root" ] && [ "{{ MODE }}" != "auto" ]; then
-  if ! id "${SUDO_USER:-user}" >/dev/null 2>&1; then
-    if [ ! -e /mmdebstrap-testenv ]; then
-      echo "this test modifies the system and should only be run inside a container" >&2
-      exit 1
-    fi
-    useradd --home-dir "/home/${SUDO_USER:-user}" --create-home "${SUDO_USER:-user}"
-  fi
-  prefix="runuser -u ${SUDO_USER:-user} --"
-fi
-
-MMTARFILTER=
-[ -x /usr/bin/mmtarfilter ] && MMTARFILTER=/usr/bin/mmtarfilter
-[ -x ./tarfilter ] && MMTARFILTER=./tarfilter
-
-# we need --hook-dir=./hooks/merged-usr because usrmerge does not understand
-# DPKG_ROOT
-# permissions drwxr-sr-x and extended attributes of ./var/log/journal/ cannot
-# be preserved under fakeroot
-# this applies to 'z' lines in files in /usr/lib/tmpfiles.d/
-for INCLUDE in '' 'apt' 'apt,build-essential' 'systemd-sysv'; do
-  {{ CMD }} --variant={{ VARIANT }} --hook-dir=./hooks/merged-usr \
-    ${INCLUDE:+--include="$INCLUDE"} \
-    {{ DIST }} - {{ MIRROR }} \
-    | "$MMTARFILTER" --path-exclude="/var/log/journal" --path-exclude="/etc/credstore*" \
-      >/tmp/root.tar
-  $prefix fakeroot {{ CMD }} --mode={{ MODE }} --variant={{ VARIANT }} --hook-dir=./hooks/merged-usr \
-    ${INCLUDE:+--include="$INCLUDE"} \
-    {{ DIST }} - {{ MIRROR }} \
-    | "$MMTARFILTER" --path-exclude="/var/log/journal" --path-exclude="/etc/credstore*" \
-      >/tmp/chrootless.tar
-  cmp /tmp/root.tar /tmp/chrootless.tar || diffoscope /tmp/root.tar /tmp/chrootless.tar
-  rm /tmp/chrootless.tar /tmp/root.tar
-done

tests/chrootless-foreign

@@ -1,66 +0,0 @@
-#!/bin/sh
-set -eu
-export LC_ALL=C.UTF-8
-export SOURCE_DATE_EPOCH={{ SOURCE_DATE_EPOCH }}
-trap "rm -f /tmp/chrootless.tar /tmp/root.tar" EXIT INT TERM
-if [ ! -e /mmdebstrap-testenv ]; then
-  echo "this test modifies the system and should only be run inside a container" >&2
-  exit 1
-fi
-
-deb2qemu() {
-  case "$1" in
-    amd64) echo x86_64 ;;
-    arm64) echo aarch64 ;;
-    armel | armhf) echo arm ;;
-    ppc64el) echo ppc64le ;;
-    *) echo "$1" ;;
-  esac
-}
-if [ "$(dpkg --print-architecture)" = "arm64" ]; then
-  arch=amd64
-else
-  arch=arm64
-fi
-
-[ "$(id -u)" -eq 0 ]
-[ -e "/proc/sys/fs/binfmt_misc/qemu-$(deb2qemu "$arch")" ]
-
-# we need --hook-dir=./hooks/merged-usr because usrmerge does not understand
-# DPKG_ROOT
-#
-# dpkg is unable to install architecture arch:all packages with a
-# dependency on an arch:any package (perl-modules-5.34 in this case)
-# inside foreign architecture chrootless chroots, because dpkg will use
-# its own architecture as the native architecture, see #825385 and #1020533
-# So we are not testing the installation of apt,build-essential here.
-for INCLUDE in '' 'apt' 'systemd-sysv'; do
-  echo 1 >"/proc/sys/fs/binfmt_misc/qemu-$(deb2qemu "$arch")"
-  arch-test "$arch"
-  {{ CMD }} --mode=root --architecture="$arch" --variant={{ VARIANT }} \
-    --hook-dir=./hooks/merged-usr ${INCLUDE:+--include="$INCLUDE"} \
-    {{ DIST }} "/tmp/root.tar" {{ MIRROR }}
-  echo 0 >"/proc/sys/fs/binfmt_misc/qemu-$(deb2qemu "$arch")"
-  arch-test "$arch" && exit 1
-  {{ CMD }} --mode=chrootless --architecture="$arch" --variant={{ VARIANT }} \
-    --hook-dir=./hooks/merged-usr ${INCLUDE:+--include="$INCLUDE"} \
-    --skip=check/chrootless {{ DIST }} "/tmp/chrootless.tar" {{ MIRROR }}
-  # when creating a foreign architecture chroot, the tarballs are not
-  # bit-by-bit identical but contain a few remaining differences:
-  #
-  #  * /etc/ld.so.cache -- hard problem, must be solved in glibc upstream
-  #  * /var/lib/dpkg/triggers -- #990712
-  #  * /var/cache/debconf/*.dat-old -- needs investigation
-  for tar in root chrootless; do
-    ./tarfilter <"/tmp/$tar.tar" \
-      --path-exclude=/var/cache/debconf/config.dat-old \
-      --path-exclude=/var/cache/debconf/templates.dat-old \
-      --path-exclude=/etc/ld.so.cache \
-      --path-exclude=/var/lib/dpkg/triggers/File \
-      --path-exclude=/var/lib/dpkg/triggers/ldconfig \
-      >"/tmp/$tar.tar.tmp"
-    mv "/tmp/$tar.tar.tmp" "/tmp/$tar.tar"
-  done
-  cmp /tmp/root.tar /tmp/chrootless.tar || diffoscope /tmp/root.tar /tmp/chrootless.tar
-  rm /tmp/chrootless.tar /tmp/root.tar
-done

tests/compare-output-with-pre-seeded-var-cache-apt-archives

@@ -10,35 +10,36 @@ if [ ! -e /mmdebstrap-testenv ]; then
 	echo "this test requires the cache directory to be mounted on /mnt and should only be run inside a container" >&2
 	exit 1
 fi
-tmpdir=$(mktemp -d)
-trap 'rm -f "$tmpdir"/*.deb /tmp/orig.tar /tmp/test1.tar /tmp/test2.tar; rmdir "$tmpdir"' EXIT INT TERM
-
 include="--include=doc-debian"
 if [ "{{ VARIANT }}" = "custom" ]; then
 	include="$include,base-files,base-passwd,coreutils,dash,diffutils,dpkg,libc-bin,sed"
 fi
+mount -o size=4G -t tmpfs tmpfs /tmp # workaround for #1010957
 {{ CMD }} $include --mode={{ MODE }} --variant={{ VARIANT }} \
 	--setup-hook='mkdir -p "$1"/var/cache/apt/archives/partial' \
 	--setup-hook='touch "$1"/var/cache/apt/archives/lock' \
 	--setup-hook='chmod 0640 "$1"/var/cache/apt/archives/lock' \
-  {{ DIST }} - {{ MIRROR }} >/tmp/orig.tar
+	{{ DIST }} - {{ MIRROR }} > orig.tar
 # somehow, when trying to create a tarball from the 9p mount, tar throws the
 # following error: tar: ./doc-debian_6.4_all.deb: File shrank by 132942 bytes; padding with zeros
 # to reproduce, try: tar --directory /mnt/cache/debian/pool/main/d/doc-debian/ --create --file - . | tar --directory /tmp/ --extract --file -
 # this will be different:
 # md5sum /mnt/cache/debian/pool/main/d/doc-debian/*.deb /tmp/*.deb
 # another reason to copy the files into a new directory is, that we can use shell globs
+tmpdir=$(mktemp -d)
 cp /mnt/cache/debian/pool/main/b/busybox/busybox_*"_{{ HOSTARCH }}.deb" /mnt/cache/debian/pool/main/a/apt/apt_*"_{{ HOSTARCH }}.deb" "$tmpdir"
 {{ CMD }} $include --mode={{ MODE }} --variant={{ VARIANT }} \
 	--setup-hook='mkdir -p "$1"/var/cache/apt/archives/partial' \
 	--setup-hook='sync-in "'"$tmpdir"'" /var/cache/apt/archives/partial' \
-  {{ DIST }} - {{ MIRROR }} >/tmp/test1.tar
-cmp /tmp/orig.tar /tmp/test1.tar
+	{{ DIST }} - {{ MIRROR }} > test1.tar
+cmp orig.tar test1.tar
 {{ CMD }} $include --mode={{ MODE }} --variant={{ VARIANT }} \
 	--customize-hook='touch "$1"/var/cache/apt/archives/partial' \
 	--setup-hook='mkdir -p "$1"/var/cache/apt/archives/' \
 	--setup-hook='sync-in "'"$tmpdir"'" /var/cache/apt/archives/' \
 	--setup-hook='chmod 0755 "$1"/var/cache/apt/archives/' \
 	--customize-hook='find "'"$tmpdir"'" -type f -exec md5sum "{}" \; | sed "s|"'"$tmpdir"'"|$1/var/cache/apt/archives|" | md5sum --check' \
-  {{ DIST }} - {{ MIRROR }} >/tmp/test2.tar
-cmp /tmp/orig.tar /tmp/test2.tar
+	{{ DIST }} - {{ MIRROR }} > test2.tar
+cmp orig.tar test2.tar
+rm "$tmpdir"/*.deb orig.tar test1.tar test2.tar
+rmdir "$tmpdir"

tests/create-arm64-tarball

@@ -0,0 +1,45 @@
+#!/bin/sh
+set -eu
+export LC_ALL=C.UTF-8
+if [ "$(id -u)" -eq 0 ] && ! id -u user > /dev/null 2>&1; then
+	if [ ! -e /mmdebstrap-testenv ]; then
+		echo "this test modifies the system and should only be run inside a container" >&2
+		exit 1
+	fi
+	adduser --gecos user --disabled-password user
+fi
+if [ "{{ MODE }}" = unshare ]; then
+	if [ ! -e /mmdebstrap-testenv ]; then
+		echo "this test modifies the system and should only be run inside a container" >&2
+		exit 1
+	fi
+	sysctl -w kernel.unprivileged_userns_clone=1
+fi
+prefix=
+[ "$(id -u)" -eq 0 ] && [ "{{ MODE }}" != "root" ] && prefix="runuser -u user --"
+[ "{{ MODE }}" = "fakechroot" ] && prefix="$prefix fakechroot fakeroot"
+$prefix {{ CMD }} --mode={{ MODE }} --variant=apt --architectures=arm64 {{ DIST }} /tmp/debian-chroot.tar {{ MIRROR }}
+# we ignore differences between architectures by ignoring some files
+# and renaming others
+# in proot mode, some extra files are put there by proot
+{ tar -tf /tmp/debian-chroot.tar \
+	| grep -v '^\./lib/ld-linux-aarch64\.so\.1$' \
+	| grep -v '^\./lib/aarch64-linux-gnu/ld-linux-aarch64\.so\.1$' \
+	| grep -v '^\./usr/share/doc/[^/]\+/changelog\(\.Debian\)\?\.arm64\.gz$' \
+	| sed 's/aarch64-linux-gnu/x86_64-linux-gnu/' \
+	| sed 's/arm64/amd64/';
+} | sort > tar2.txt
+{ cat tar1.txt \
+	| grep -v '^\./usr/bin/i386$' \
+	| grep -v '^\./usr/bin/x86_64$' \
+	| grep -v '^\./lib64/$' \
+	| grep -v '^\./lib64/ld-linux-x86-64\.so\.2$' \
+	| grep -v '^\./lib/x86_64-linux-gnu/ld-linux-x86-64\.so\.2$' \
+	| grep -v '^\./lib/x86_64-linux-gnu/libmvec-2\.[0-9]\+\.so$' \
+	| grep -v '^\./lib/x86_64-linux-gnu/libmvec\.so\.1$' \
+	| grep -v '^\./usr/share/doc/[^/]\+/changelog\(\.Debian\)\?\.amd64\.gz$' \
+	| grep -v '^\./usr/share/man/man8/i386\.8\.gz$' \
+	| grep -v '^\./usr/share/man/man8/x86_64\.8\.gz$';
+	[ "{{ MODE }}" = "proot" ] && printf "./etc/ld.so.preload\n";
+} | sort | diff -u - tar2.txt
+rm /tmp/debian-chroot.tar

tests/create-directory

@@ -1,9 +1,7 @@
 #!/bin/sh
 set -eu
 export LC_ALL=C.UTF-8
-
-trap "rm -rf /tmp/debian-chroot" EXIT INT TERM
-
 {{ CMD }} --mode=root --variant=apt {{ DIST }} /tmp/debian-chroot {{ MIRROR }}
-chroot /tmp/debian-chroot dpkg-query --showformat '${binary:Package}\n' --show >pkglist.txt
-tar -C /tmp/debian-chroot --one-file-system -c . | tar -t | sort >tar1.txt
+chroot /tmp/debian-chroot dpkg-query --showformat '${binary:Package}\n' --show > pkglist.txt
+tar -C /tmp/debian-chroot --one-file-system -c . | tar -t | sort > tar1.txt
+rm -r /tmp/debian-chroot

tests/create-directory-dry-run

@@ -24,6 +24,5 @@ rm /tmp/debian-chroot/etc/hostname
 rm /tmp/debian-chroot/etc/resolv.conf
 rm /tmp/debian-chroot/var/lib/apt/lists/lock
 rm /tmp/debian-chroot/var/lib/dpkg/status
-rm /tmp/debian-chroot/var/lib/dpkg/arch
 # the rest should be empty directories that we can rmdir recursively
 find /tmp/debian-chroot -depth -print0 | xargs -0 rmdir

tests/create-foreign-tarball

@@ -1,78 +0,0 @@
-#!/bin/sh
-set -eu
-export LC_ALL=C.UTF-8
-
-prefix=
-if [ "$(id -u)" -eq 0 ] && [ "{{ MODE }}" != "root" ] && [ "{{ MODE }}" != "auto" ]; then
-  if ! id "${SUDO_USER:-user}" >/dev/null 2>&1; then
-    if [ ! -e /mmdebstrap-testenv ]; then
-      echo "this test modifies the system and should only be run inside a container" >&2
-      exit 1
-    fi
-    useradd --home-dir "/home/${SUDO_USER:-user}" --create-home "${SUDO_USER:-user}"
-  fi
-  prefix="runuser -u ${SUDO_USER:-user} --"
-fi
-
-case "$(dpkg --print-architecture)" in
-  arm64)
-    native_arch=arm64
-    native_gnu=aarch64-linux-gnu
-    foreign_arch=amd64
-    foreign_gnu=x86_64-linux-gnu
-    ;;
-  amd64)
-    native_arch=amd64
-    native_gnu=x86_64-linux-gnu
-    foreign_arch=arm64
-    foreign_gnu=aarch64-linux-gnu
-    ;;
-  *)
-    echo "unsupported native architecture" >&2
-    exit 1
-    ;;
-esac
-
-[ "{{ MODE }}" = "fakechroot" ] && prefix="$prefix fakechroot fakeroot"
-$prefix {{ CMD }} --mode={{ MODE }} --variant=apt --architectures="$foreign_arch" \
-  {{ DIST }} /tmp/debian-chroot.tar {{ MIRROR }}
-# we ignore differences between architectures by ignoring some files
-# and renaming others
-{
-  tar -tf /tmp/debian-chroot.tar \
-    | grep -v '^\./usr/bin/i386$' \
-    | grep -v '^\./usr/bin/x86_64$' \
-    | grep -v '^\./lib64$' \
-    | grep -v '^\./usr/lib64/$' \
-    | grep -v '^\./usr/lib64/ld-linux-x86-64\.so\.2$' \
-    | grep -v '^\./usr/lib/ld-linux-aarch64\.so\.1$' \
-    | grep -v "^\\./usr/lib/$foreign_gnu/ld-linux-aarch64\\.so\\.1$" \
-    | grep -v "^\\./usr/lib/$foreign_gnu/ld-linux-x86-64\\.so\\.2$" \
-    | grep -v "^\\./usr/lib/$foreign_gnu/perl/5\\.[0-9][.0-9]\\+/.*\\.ph$" \
-    | grep -v "^\\./usr/lib/$foreign_gnu/libmvec\\.so\\.1$" \
-    | grep -v "^\\./usr/share/doc/[^/]\\+/changelog\\(\\.Debian\\)\\?\\.$foreign_arch\\.gz$" \
-    | grep -v '^\./usr/share/man/man8/i386\.8\.gz$' \
-    | grep -v '^\./usr/share/man/man8/x86_64\.8\.gz$' \
-    | sed "s/$foreign_gnu/$native_gnu/" \
-    | sed "s/$foreign_arch/$native_arch/"
-} | sort >/tmp/tar2.txt
-{
-  grep <tar1.txt -v '^\./usr/bin/i386$' \
-    | grep -v '^\./usr/bin/x86_64$' \
-    | grep -v '^\./lib32$' \
-    | grep -v '^\./lib64$' \
-    | grep -v '^\./libx32$' \
-    | grep -v '^\./usr/lib32/$' \
-    | grep -v '^\./usr/libx32/$' \
-    | grep -v '^\./usr/lib64/$' \
-    | grep -v '^\./usr/lib64/ld-linux-x86-64\.so\.2$' \
-    | grep -v '^\./usr/lib/ld-linux-aarch64\.so\.1$' \
-    | grep -v "^\\./usr/lib/$native_gnu/ld-linux-x86-64\\.so\\.2$" \
-    | grep -v "^\\./usr/lib/$native_gnu/ld-linux-aarch64\\.so\\.1$" \
-    | grep -v "^\\./usr/lib/$native_gnu/libmvec\\.so\\.1$" \
-    | grep -v "^\\./usr/lib/$native_gnu/perl/5\\.[0-9][.0-9]\\+/.*\\.ph$" \
-    | grep -v "^\\./usr/share/doc/[^/]\\+/changelog\\(\\.Debian\\)\\?\\.$native_arch\\.gz$" \
-    | grep -v '^\./usr/share/man/man8/i386\.8\.gz$' \
-    | grep -v '^\./usr/share/man/man8/x86_64\.8\.gz$'
-} | sort | diff -u - /tmp/tar2.txt >&2
-rm /tmp/debian-chroot.tar /tmp/tar2.txt

tests/create-gzip-compressed-tarball

@@ -1,20 +1,13 @@
 #!/bin/sh
 set -eu
 export LC_ALL=C.UTF-8
-
-prefix=
-if [ "$(id -u)" -eq 0 ] && [ "{{ MODE }}" != "root" ] && [ "{{ MODE }}" != "auto" ]; then
-  if ! id "${SUDO_USER:-user}" >/dev/null 2>&1; then
-    if [ ! -e /mmdebstrap-testenv ]; then
+if [ ! -e /mmdebstrap-testenv ]; then
 	echo "this test modifies the system and should only be run inside a container" >&2
 	exit 1
-    fi
-    useradd --home-dir "/home/${SUDO_USER:-user}" --create-home "${SUDO_USER:-user}"
-  fi
-  prefix="runuser -u ${SUDO_USER:-user} --"
 fi
-
-$prefix {{ CMD }} --mode={{ MODE }} --variant=apt {{ DIST }} /tmp/debian-chroot.tar.gz {{ MIRROR }}
+adduser --gecos user --disabled-password user
+sysctl -w kernel.unprivileged_userns_clone=1
+runuser -u user -- {{ CMD }} --mode=unshare --variant=apt {{ DIST }} /tmp/debian-chroot.tar.gz {{ MIRROR }}
 printf '\037\213\010' | cmp --bytes=3 /tmp/debian-chroot.tar.gz -
 tar -tf /tmp/debian-chroot.tar.gz | sort | diff -u tar1.txt -
 rm /tmp/debian-chroot.tar.gz

tests/create-tarball-dry-run

@@ -6,21 +6,29 @@
 set -eu
 export LC_ALL=C.UTF-8
 prefix=
-include=,
+include=
 if [ "$(id -u)" -eq 0 ] && [ "{{ MODE }}" != root ] && [ "{{ MODE }}" != auto ]; then
-  if ! id "${SUDO_USER:-user}" >/dev/null 2>&1; then
+	# this must be qemu
+	if ! id -u user >/dev/null 2>&1; then
 		if [ ! -e /mmdebstrap-testenv ]; then
 			echo "this test modifies the system and should only be run inside a container" >&2
 			exit 1
 		fi
-    useradd --home-dir "/home/${SUDO_USER:-user}" --create-home "${SUDO_USER:-user}"
+		adduser --gecos user --disabled-password user
 	fi
-  prefix="runuser -u ${SUDO_USER:-user} --"
-  if [ "{{ VARIANT }}" = extract ] || [ "{{ VARIANT }}" = custom ]; then
-    include="$(tr '\n' ',' <pkglist.txt)"
+	if [ "{{ MODE }}" = unshare ]; then
+		if [ ! -e /mmdebstrap-testenv ]; then
+			echo "this test modifies the system and should only be run inside a container" >&2
+			exit 1
+		fi
+		sysctl -w kernel.unprivileged_userns_clone=1
+	fi
+	prefix="runuser -u user --"
+	if [ "{{ MODE }}" = extract ] || [ "{{ MODE }}" = custom ]; then
+		include="--include=$(cat pkglist.txt | tr '\n' ',')"
 	fi
 fi
-$prefix {{ CMD }} --mode={{ MODE }} --include="$include" --dry-run --variant={{ VARIANT }} {{ DIST }} /tmp/debian-chroot.tar {{ MIRROR }}
+$prefix {{ CMD }} --mode={{ MODE }} $include --dry-run --variant={{ VARIANT }} {{ DIST }} /tmp/debian-chroot.tar {{ MIRROR }}
 if [ -e /tmp/debian-chroot.tar ]; then
 	echo "/tmp/debian-chroot.tar must not be created with --dry-run" >&2
 	exit 1

tests/create-tarball-with-tmp-mounted-nodev

@@ -5,7 +5,7 @@ if [ ! -e /mmdebstrap-testenv ]; then
 	echo "this test modifies the system and should only be run inside a container" >&2
 	exit 1
 fi
-mount -t tmpfs -o nodev,nosuid,size=400M tmpfs /tmp
+mount -t tmpfs -o nodev,nosuid,size=300M tmpfs /tmp
 # use --customize-hook to exercise the mounting/unmounting code of block devices in root mode
 {{ CMD }} --mode=root --variant=apt --customize-hook='mount | grep /dev/full' --customize-hook='test "$(echo foo | tee /dev/full 2>&1 1>/dev/null)" = "tee: /dev/full: No space left on device"' {{ DIST }} /tmp/debian-chroot.tar {{ MIRROR }}
 tar -tf /tmp/debian-chroot.tar | sort | diff -u tar1.txt -

tests/custom-tmpdir

@@ -1,33 +1,22 @@
 #!/bin/sh
 set -eu
 export LC_ALL=C.UTF-8
-
-[ "$(id -u)" -eq 0 ]
-[ {{ MODE }} = "unshare" ]
-
-if ! id "${SUDO_USER:-user}" >/dev/null 2>&1; then
-  if [ ! -e /mmdebstrap-testenv ]; then
+if [ ! -e /mmdebstrap-testenv ]; then
 	echo "this test modifies the system and should only be run inside a container" >&2
 	exit 1
-  fi
-  useradd --home-dir "/home/${SUDO_USER:-user}" --create-home "${SUDO_USER:-user}"
 fi
-prefix="runuser -u ${SUDO_USER:-user} --"
-
 # https://www.etalabs.net/sh_tricks.html
-quote() { printf %s\\n "$1" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/'/"; }
-homedir=$($prefix sh -c 'cd && pwd')
+quote () { printf %s\\n "$1" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/'/" ; }
+adduser --gecos user --disabled-password user
+sysctl -w kernel.unprivileged_userns_clone=1
+homedir=$(runuser -u user -- sh -c 'cd && pwd')
 # apt:test/integration/test-apt-key
-TMPDIR_ADD='This is fü$$ing cràzy, $(apt -v)$!'
-$prefix mkdir "$homedir/$TMPDIR_ADD"
-# make sure the unshared user can traverse into the TMPDIR
-chmod 711 "$homedir"
-# set permissions and sticky bit like the real /tmp
-chmod 1777 "$homedir/$TMPDIR_ADD"
-$prefix env TMPDIR="$homedir/$TMPDIR_ADD" {{ CMD }} --mode={{ MODE }} --variant=apt \
+TMPDIR_ADD="This is fü\$\$ing cràzy, \$(apt -v)\$!"
+runuser -u user -- mkdir "$homedir/$TMPDIR_ADD"
+runuser -u user -- env TMPDIR="$homedir/$TMPDIR_ADD" {{ CMD }} --mode=unshare --variant=apt \
 	--setup-hook='case "$1" in '"$(quote "$homedir/$TMPDIR_ADD/mmdebstrap.")"'??????????) exit 0;; *) echo "$1"; exit 1;; esac' \
 	 {{ DIST }} /tmp/debian-chroot.tar {{ MIRROR }}
 tar -tf /tmp/debian-chroot.tar | sort | diff -u tar1.txt -
 # use rmdir as a quick check that nothing is remaining in TMPDIR
-$prefix rmdir "$homedir/$TMPDIR_ADD"
+runuser -u user -- rmdir "$homedir/$TMPDIR_ADD"
 rm /tmp/debian-chroot.tar

tests/customize-hook

@@ -2,7 +2,7 @@
 set -eu
 export LC_ALL=C.UTF-8
 trap "rm -rf /tmp/debian-chroot; rm -f /tmp/customize.sh" EXIT INT TERM
-cat <<'SCRIPT' >/tmp/customize.sh
+cat << 'SCRIPT' > /tmp/customize.sh
 #!/bin/sh
 chroot "$1" whoami > "$1/output2"
 chroot "$1" pwd >> "$1/output2"

tests/cwd-directory-not-accessible-by-unshared-user

@@ -1,30 +1,22 @@
 #!/bin/sh
 set -eu
 export LC_ALL=C.UTF-8
-
-[ "$(id -u)" -eq 0 ]
-[ {{ MODE }} = "unshare" ]
-
-if ! id "${SUDO_USER:-user}" >/dev/null 2>&1; then
-  if [ ! -e /mmdebstrap-testenv ]; then
+if [ ! -e /mmdebstrap-testenv ]; then
 	echo "this test modifies the system and should only be run inside a container" >&2
 	exit 1
-  fi
-  useradd --home-dir "/home/${SUDO_USER:-user}" --create-home "${SUDO_USER:-user}"
 fi
-prefix="runuser -u ${SUDO_USER:-user} --"
-
+adduser --gecos user --disabled-password user
+sysctl -w kernel.unprivileged_userns_clone=1
 mkdir /tmp/debian-chroot
 chmod 700 /tmp/debian-chroot
-chown "${SUDO_USER:-user}:${SUDO_USER:-user}" /tmp/debian-chroot
-set -- env --chdir=/tmp/debian-chroot
+chown user:user /tmp/debian-chroot
 if [ "{{ CMD }}" = "./mmdebstrap" ]; then
-  set -- "$@" "$(realpath --canonicalize-existing ./mmdebstrap)"
+	CMD=$(realpath --canonicalize-existing ./mmdebstrap)
 elif [ "{{ CMD }}" = "perl -MDevel::Cover=-silent,-nogcov ./mmdebstrap" ]; then
-  set -- "$@" perl -MDevel::Cover=-silent,-nogcov "$(realpath --canonicalize-existing ./mmdebstrap)"
+	CMD="perl -MDevel::Cover=-silent,-nogcov $(realpath --canonicalize-existing ./mmdebstrap)"
 else
-  set -- "$@" {{ CMD }}
+	CMD="{{ CMD }}"
 fi
-$prefix "$@" --mode={{ MODE }} --variant=apt {{ DIST }} /tmp/debian-chroot.tar {{ MIRROR }}
+env --chdir=/tmp/debian-chroot runuser -u user -- $CMD --mode=unshare --variant=apt {{ DIST }} /tmp/debian-chroot.tar {{ MIRROR }}
 tar -tf /tmp/debian-chroot.tar | sort | diff -u tar1.txt -
 rm /tmp/debian-chroot.tar

tests/deb822-1-2

@@ -2,13 +2,13 @@
 set -eu
 export LC_ALL=C.UTF-8
 trap "rm -rf /tmp/debian-chroot; rm -f /tmp/sources.list /tmp/deb822.sources" EXIT INT TERM
-cat <<SOURCES >/tmp/deb822.sources
+cat << SOURCES > /tmp/deb822.sources
 Types: deb
 URIs: {{ MIRROR }}1
 Suites: {{ DIST }}
 Components: main
 SOURCES
-echo "deb {{ MIRROR }}2 {{ DIST }} main" >/tmp/sources.list
+echo "deb {{ MIRROR }}2 {{ DIST }} main" > /tmp/sources.list
 echo "deb {{ MIRROR }}3 {{ DIST }} main" \
 	| {{ CMD }} --mode={{ MODE }} --variant=apt {{ DIST }} \
 		/tmp/debian-chroot \
@@ -19,13 +19,13 @@ echo "deb {{ MIRROR }}3 {{ DIST }} main" \
 		{{ MIRROR }}6 \
 		/tmp/sources.list
 test ! -e /tmp/debian-chroot/etc/apt/sources.list
-cat <<SOURCES | cmp /tmp/debian-chroot/etc/apt/sources.list.d/0000deb822.sources -
+cat << SOURCES | cmp /tmp/debian-chroot/etc/apt/sources.list.d/0000deb822.sources -
 Types: deb
 URIs: {{ MIRROR }}1
 Suites: {{ DIST }}
 Components: main
 SOURCES
-cat <<SOURCES | cmp /tmp/debian-chroot/etc/apt/sources.list.d/0001main.list -
+cat << SOURCES | cmp /tmp/debian-chroot/etc/apt/sources.list.d/0001main.list -
 deb {{ MIRROR }}4 {{ DIST }} main
 
 deb {{ MIRROR }}3 {{ DIST }} main
@@ -40,6 +40,6 @@ tar -C /tmp/debian-chroot --one-file-system -c . \
 		tar -t \
 			| grep -v "^./etc/apt/sources.list.d/0000deb822.sources$" \
 			| grep -v "^./etc/apt/sources.list.d/0001main.list$" \
-      | grep -v "^./etc/apt/sources.list.d/0002sources.list"
-    printf "./etc/apt/sources.list\n"
+			| grep -v "^./etc/apt/sources.list.d/0002sources.list";
+		printf "./etc/apt/sources.list\n";
 	} | sort | diff -u tar1.txt -

tests/deb822-2-2

@@ -2,14 +2,14 @@
 set -eu
 export LC_ALL=C.UTF-8
 trap "rm -rf /tmp/debian-chroot; rm -f /tmp/sources /tmp/deb822" EXIT INT TERM
-cat <<SOURCES >/tmp/deb822
+cat << SOURCES > /tmp/deb822
 Types: deb
 URIs: {{ MIRROR }}1
 Suites: {{ DIST }}
 Components: main
 SOURCES
-echo "deb {{ MIRROR }}2 {{ DIST }} main" >/tmp/sources
-cat <<SOURCES | {{ CMD }} --mode={{ MODE }} --variant=apt {{ DIST }} \
+echo "deb {{ MIRROR }}2 {{ DIST }} main" > /tmp/sources
+cat << SOURCES | {{ CMD }} --mode={{ MODE }} --variant=apt {{ DIST }} \
 		/tmp/debian-chroot \
 		/tmp/deb822 \
 		- \
@@ -21,13 +21,13 @@ Components: main
 SOURCES
 test ! -e /tmp/debian-chroot/etc/apt/sources.list
 ls -lha /tmp/debian-chroot/etc/apt/sources.list.d/
-cat <<SOURCES | cmp /tmp/debian-chroot/etc/apt/sources.list.d/0000deb822.sources -
+cat << SOURCES | cmp /tmp/debian-chroot/etc/apt/sources.list.d/0000deb822.sources -
 Types: deb
 URIs: {{ MIRROR }}1
 Suites: {{ DIST }}
 Components: main
 SOURCES
-cat <<SOURCES | cmp /tmp/debian-chroot/etc/apt/sources.list.d/0001main.sources -
+cat << SOURCES | cmp /tmp/debian-chroot/etc/apt/sources.list.d/0001main.sources -
 Types: deb
 URIs: {{ MIRROR }}3
 Suites: {{ DIST }}
@@ -39,6 +39,6 @@ tar -C /tmp/debian-chroot --one-file-system -c . \
 		tar -t \
 			| grep -v "^./etc/apt/sources.list.d/0000deb822.sources$" \
 			| grep -v "^./etc/apt/sources.list.d/0001main.sources$" \
-      | grep -v "^./etc/apt/sources.list.d/0002sources.list$"
-    printf "./etc/apt/sources.list\n"
+			| grep -v "^./etc/apt/sources.list.d/0002sources.list$";
+		printf "./etc/apt/sources.list\n";
 	} | sort | diff -u tar1.txt -

tests/debootstrap

@@ -1,16 +0,0 @@
-#!/bin/sh
-set -eu
-export LC_ALL=C.UTF-8
-export SOURCE_DATE_EPOCH={{ SOURCE_DATE_EPOCH }}
-
-tmpdir="$(mktemp -d)"
-chmod 755 "$tmpdir"
-ret=0
-debootstrap "$([ "{{ DIST }}" = oldstable ] && echo --no-merged-usr || echo --merged-usr)" --variant={{ VARIANT }} {{ DIST }} "$tmpdir" {{ MIRROR }} || ret=$?
-if [ "$ret" -ne 0 ]; then
-  echo "E: debootstrap failed, dumping $tmpdir/debootstrap/debootstrap.log"
-  cat "$tmpdir/debootstrap/debootstrap.log"
-  exit 1
-fi
-tar --sort=name --mtime=@$SOURCE_DATE_EPOCH --clamp-mtime --numeric-owner --one-file-system --xattrs -C "$tmpdir" -c . >"./cache/debian-{{ DIST }}-{{ VARIANT }}.tar"
-rm -r "$tmpdir"

tests/debug

@@ -1,15 +1,6 @@
 #!/bin/sh
 set -eu
 export LC_ALL=C.UTF-8
-export SOURCE_DATE_EPOCH={{ SOURCE_DATE_EPOCH }}
-
-trap "rm -f /tmp/debian-chroot.tar" EXIT INT TERM
-
-# we use variant standard in verbose mode to see the maximum number of packages
-# that was chosen in case of USE_HOST_APT_CONFIG=yes
-case {{ VARIANT }} in standard) : ;; *) exit 1 ;; esac
-
-{{ CMD }} --variant={{ VARIANT }} --debug {{ DIST }} /tmp/debian-chroot.tar {{ MIRROR }}
-
-cmp ./cache/mmdebstrap-{{ DIST }}-{{ VARIANT }}.tar /tmp/debian-chroot.tar \
-  || diffoscope ./cache/mmdebstrap-{{ DIST }}-{{ VARIANT }}.tar /tmp/debian-chroot.tar
+{{ CMD }} --mode=root --variant=apt --debug {{ DIST }} /tmp/debian-chroot {{ MIRROR }}
+tar -C /tmp/debian-chroot --one-file-system -c . | tar -t | sort | diff -u tar1.txt -
+rm -r /tmp/debian-chroot

tests/dev-ptmx

@@ -7,20 +7,18 @@ if [ {{ MODE }} != unshare ] && [ {{ MODE }} != root ]; then
 	exit 1
 fi
 
-prefix=
-if [ "$(id -u)" -eq 0 ] && [ "{{ MODE }}" != "root" ] && [ "{{ MODE }}" != "auto" ]; then
-  if ! id "${SUDO_USER:-user}" >/dev/null 2>&1; then
-    if [ ! -e /mmdebstrap-testenv ]; then
+if [ ! -e /mmdebstrap-testenv ]; then
 	echo "this test modifies the system and should only be run inside a container" >&2
 	exit 1
-    fi
-    useradd --home-dir "/home/${SUDO_USER:-user}" --create-home "${SUDO_USER:-user}"
-  fi
-  prefix="runuser -u ${SUDO_USER:-user} --"
 fi
+if [ "$(id -u)" -eq 0 ] && ! id -u user > /dev/null 2>&1; then
+	adduser --gecos user --disabled-password user
+fi
+prefix=
+[ "$(id -u)" -eq 0 ] && [ "{{ MODE }}" != "root" ] && prefix="runuser -u user --"
 
 # this mimics what apt does in apt-pkg/deb/dpkgpm.cc/pkgDPkgPM::StartPtyMagic()
-cat >/tmp/test.c <<'END'
+cat > /tmp/test.c << 'END'
 #define _GNU_SOURCE
 
 #include <stdlib.h>
@@ -118,24 +116,22 @@ END
 
 # use script to create a fake tty
 # run all tests as root and as a normal user (the latter requires ptmxmode=666)
-script -qfec "$prefix {{ CMD }} --mode={{ MODE }} --variant=apt \
-	--include=gcc,libc6-dev,python3,passwd \
-	--customize-hook='chroot \"\$1\" useradd --home-dir /home/user --create-home user' \
+script -qfc "$prefix {{ CMD }} --mode={{ MODE }} --variant=apt \
+	--include=gcc,libc6-dev,python3 \
+	--customize-hook='chroot \"\$1\" adduser --gecos user --disabled-password user' \
 	--customize-hook='chroot \"\$1\" python3 -c \"import pty; print(pty.openpty())\"' \
 	--customize-hook='chroot \"\$1\" runuser -u user -- python3 -c \"import pty; print(pty.openpty())\"' \
 	--customize-hook='chroot \"\$1\" script -c \"echo foobar\"' \
 	--customize-hook='chroot \"\$1\" runuser -u user -- env --chdir=/home/user script -c \"echo foobar\"' \
-	--customize-hook='chroot \"\$1\" apt-get install --yes doc-debian 2>&1 | tee \"\$1\"/tmp/log' \
+	--customize-hook='chroot \"\$1\" apt-get install --yes doc-debian 2>&1 | tee /tmp/log' \
 	--customize-hook=\"copy-in /tmp/test.c /tmp\" \
 	--customize-hook='chroot \"\$1\" gcc /tmp/test.c -o /tmp/test' \
 	--customize-hook='chroot \"\$1\" /tmp/test' \
 	--customize-hook='chroot \"\$1\" runuser -u user -- /tmp/test' \
 	--customize-hook='rm \"\$1\"/tmp/test \"\$1\"/tmp/test.c' \
-	--customize-hook=\"copy-out /tmp/log /tmp\" \
 	{{ DIST }} /dev/null {{ MIRROR }}" /dev/null
 
 fail=0
-[ -r /tmp/log ] || fail=1
 grep '^E:' /tmp/log && fail=1
 grep 'Can not write log' /tmp/log && fail=1
 grep 'posix_openpt' /tmp/log && fail=1

tests/dist-using-codename

@@ -4,10 +4,8 @@
 
 set -eu
 export LC_ALL=C.UTF-8
-trap "rm -f InRelease; rm -rf /tmp/debian-chroot.tar /tmp/expected" EXIT INT TERM
-/usr/lib/apt/apt-helper download-file "{{ MIRROR }}/dists/{{ DIST }}/InRelease" InRelease
-codename=$(awk '/^Codename: / { print $2; }' InRelease)
-{{ CMD }} --mode={{ MODE }} --variant=apt "$codename" /tmp/debian-chroot.tar {{ MIRROR }}
-echo "deb {{ MIRROR }} $codename main" >/tmp/expected
-tar --to-stdout --extract --file /tmp/debian-chroot.tar ./etc/apt/sources.list \
-  | diff -u /tmp/expected -
+trap "rm -f Release; rm -rf /tmp/debian-chroot" EXIT INT TERM
+/usr/lib/apt/apt-helper download-file "{{ MIRROR }}/dists/{{ DIST }}/Release" Release
+codename=$(awk '/^Codename: / { print $2; }' Release)
+{{ CMD }} --mode={{ MODE }} --variant=apt $codename /tmp/debian-chroot {{ MIRROR }}
+echo "deb {{ MIRROR }} $codename main" | diff -u - /tmp/debian-chroot/etc/apt/sources.list

tests/dpkgopt

@@ -2,13 +2,9 @@
 set -eu
 export LC_ALL=C.UTF-8
 trap "rm -rf /tmp/debian-chroot; rm -f /tmp/config" EXIT INT TERM
-echo no-pager >/tmp/config
+echo no-pager > /tmp/config
 {{ CMD }} --mode=root --variant=apt --dpkgopt="path-exclude=/usr/share/doc/*" --dpkgopt=/tmp/config --dpkgopt="path-include=/usr/share/doc/dpkg/copyright" {{ DIST }} /tmp/debian-chroot {{ MIRROR }}
 printf 'path-exclude=/usr/share/doc/*\nno-pager\npath-include=/usr/share/doc/dpkg/copyright\n' | cmp /tmp/debian-chroot/etc/dpkg/dpkg.cfg.d/99mmdebstrap -
 rm /tmp/debian-chroot/etc/dpkg/dpkg.cfg.d/99mmdebstrap
-tar -C /tmp/debian-chroot --one-file-system -c . | tar -t | sort >tar2.txt
-{
-  grep -v '^./usr/share/doc/.' tar1.txt
-  echo ./usr/share/doc/dpkg/
-  echo ./usr/share/doc/dpkg/copyright
-} | sort | diff -u - tar2.txt
+tar -C /tmp/debian-chroot --one-file-system -c . | tar -t | sort > tar2.txt
+{ grep -v '^./usr/share/doc/.' tar1.txt; echo ./usr/share/doc/dpkg/; echo ./usr/share/doc/dpkg/copyright; } | sort | diff -u - tar2.txt

tests/eatmydata-via-hook-dir

@@ -1,7 +1,7 @@
 #!/bin/sh
 set -eu
 export LC_ALL=C.UTF-8
-cat <<SCRIPT >/tmp/checkeatmydata.sh
+cat << SCRIPT > /tmp/checkeatmydata.sh
 #!/bin/sh
 set -exu
 cat << EOF | diff - "\$1"/usr/bin/dpkg
@@ -12,24 +12,18 @@ EOF
 SCRIPT
 chmod +x /tmp/checkeatmydata.sh
 # first four bytes: magic
-elfheader='\177ELF'
+elfheader="\\177ELF"
 # fifth byte: bits
 case "$(dpkg-architecture -qDEB_HOST_ARCH_BITS)" in
-  32) elfheader="$elfheader\\001" ;;
-  64) elfheader="$elfheader\\002" ;;
-  *)
-    echo "bits not supported"
-    exit 1
-    ;;
+	32) elfheader="$elfheader\\001";;
+	64) elfheader="$elfheader\\002";;
+	*) echo "bits not supported"; exit 1;;
 esac
 # sixth byte: endian
 case "$(dpkg-architecture -qDEB_HOST_ARCH_ENDIAN)" in
-  little) elfheader="$elfheader\\001" ;;
-  big) elfheader="$elfheader\\002" ;;
-  *)
-    echo "endian not supported"
-    exit 1
-    ;;
+	little) elfheader="$elfheader\\001";;
+	big) elfheader="$elfheader\\002";;
+	*) echo "endian not supported"; exit 1;;
 esac
 # seventh and eigth byte: elf version (1) and abi (unset)
 elfheader="$elfheader\\001\\000"
@@ -40,9 +34,6 @@ elfheader="$elfheader\\001\\000"
 	--hook-dir=./hooks/eatmydata \
 	--customize-hook='printf "'"$elfheader"'" | cmp --bytes=8 - "$1"/usr/bin/dpkg' \
 	 {{ DIST }} /tmp/debian-chroot {{ MIRROR }}
-tar -C /tmp/debian-chroot --one-file-system -c . \
-  | tar -t \
-  | sort \
-  | diff -u tar1.txt -
+tar -C /tmp/debian-chroot --one-file-system -c . | tar -t | sort | diff -u tar1.txt -
 rm /tmp/checkeatmydata.sh
 rm -r /tmp/debian-chroot

tests/empty-sources.list

@@ -1,8 +0,0 @@
-#!/bin/sh
-set -eu
-export LC_ALL=C.UTF-8
-trap "rm -f /tmp/debian-chroot.tar" EXIT INT TERM
-printf '' | {{ CMD }} --mode={{ MODE }} --variant=apt \
-  --setup-hook='test -e "$1"/etc/apt/sources.list || echo "deb {{ MIRROR }} {{ DIST }} main" > "$1"/etc/apt/sources.list' \
-  {{ DIST }} /tmp/debian-chroot.tar -
-tar -tf /tmp/debian-chroot.tar | sort | diff -u tar1.txt -

tests/empty-suite

@@ -1,13 +0,0 @@
-#!/bin/sh
-set -eu
-export LC_ALL=C.UTF-8
-export SOURCE_DATE_EPOCH={{ SOURCE_DATE_EPOCH }}
-
-trap "rm -f /tmp/debian-chroot.tar" EXIT INT TERM
-
-{{ CMD }} --variant={{ VARIANT }} --verbose \
-  --setup-hook='echo deb {{ MIRROR }} {{ DIST }} main >> "$1"/etc/apt/sources.list' \
-  '' /tmp/debian-chroot.tar
-
-cmp ./cache/mmdebstrap-{{ DIST }}-{{ VARIANT }}.tar /tmp/debian-chroot.tar \
-  || diffoscope ./cache/mmdebstrap-{{ DIST }}-{{ VARIANT }}.tar /tmp/debian-chroot.tar

tests/error-if-stdout-is-tty

@@ -1,12 +0,0 @@
-#!/bin/sh
-
-set -eu
-
-export LC_ALL=C.UTF-8
-
-ret=0
-script -qfec "{{ CMD }} --mode={{ MODE }} --variant=apt {{ DIST }} - {{ MIRROR }}" /dev/null || ret=$?
-if [ "$ret" = 0 ]; then
-  echo expected failure but got exit $ret >&2
-  exit 1
-fi

tests/essential-hook

@@ -2,19 +2,19 @@
 set -eu
 export LC_ALL=C.UTF-8
 trap "rm -rf /tmp/debian-chroot; rm -f /tmp/essential.sh" EXIT INT TERM
-cat <<'SCRIPT' >/tmp/essential.sh
+cat << 'SCRIPT' > /tmp/essential.sh
 #!/bin/sh
 echo tzdata tzdata/Zones/Europe select Berlin | chroot "$1" debconf-set-selections
 SCRIPT
 chmod +x /tmp/essential.sh
 {{ CMD }} --mode=root --variant=apt --include=tzdata --essential-hook='echo tzdata tzdata/Areas select Europe | chroot "$1" debconf-set-selections' --essential-hook=/tmp/essential.sh {{ DIST }} /tmp/debian-chroot {{ MIRROR }}
-[ "$(readlink /tmp/debian-chroot/etc/localtime)" = "/usr/share/zoneinfo/Europe/Berlin" ]
+echo Europe/Berlin | cmp /tmp/debian-chroot/etc/timezone
 tar -C /tmp/debian-chroot --one-file-system -c . | tar -t | sort \
 	| grep -v '^./etc/localtime' \
 	| grep -v '^./etc/timezone' \
 	| grep -v '^./usr/sbin/tzconfig' \
 	| grep -v '^./usr/share/doc/tzdata' \
-  | grep -v '^./usr/share/lintian/overrides/tzdata' \
 	| grep -v '^./usr/share/zoneinfo' \
 	| grep -v '^./var/lib/dpkg/info/tzdata.' \
+	| grep -v '^./var/lib/apt/extended_states$' \
 	| diff -u tar1.txt -

tests/fail-installing-to-existing-file

@@ -1,9 +1,6 @@
 #!/bin/sh
 set -eu
 export LC_ALL=C.UTF-8
-
-trap "rm -f /tmp/exists" EXIT INT TERM
-
 touch /tmp/exists
 ret=0
 {{ CMD }} --mode={{ MODE }} --variant=apt {{ DIST }} /tmp/exists {{ MIRROR }} || ret=$?

tests/fail-with-path-with-quotes

@@ -1,9 +1,6 @@
 #!/bin/sh
 set -eu
 export LC_ALL=C.UTF-8
-
-trap 'rm -rf /tmp/quoted\"path' EXIT INT TERM
-
 ret=0
 {{ CMD }} --mode={{ MODE }} --variant=apt {{ DIST }} /tmp/quoted\"path {{ MIRROR }} || ret=$?
 if [ "$ret" = 0 ]; then

tests/fail-without-etc-subuid

@@ -5,7 +5,8 @@ if [ ! -e /mmdebstrap-testenv ]; then
 	echo "this test modifies the system and should only be run inside a container" >&2
 	exit 1
 fi
-useradd --home-dir /home/user --create-home user
+adduser --gecos user --disabled-password user
+sysctl -w kernel.unprivileged_userns_clone=1
 rm /etc/subuid
 ret=0
 runuser -u user -- {{ CMD }} --mode=unshare --variant=apt {{ DIST }} /tmp/debian-chroot {{ MIRROR }} || ret=$?
@@ -13,4 +14,4 @@ if [ "$ret" = 0 ]; then
 	echo expected failure but got exit $ret >&2
 	exit 1
 fi
-[ ! -e /tmp/debian-chroot ]
+rm -r /tmp/debian-chroot

tests/fail-without-username-in-etc-subuid

@@ -5,8 +5,9 @@ if [ ! -e /mmdebstrap-testenv ]; then
 	echo "this test modifies the system and should only be run inside a container" >&2
 	exit 1
 fi
-useradd --home-dir /home/user --create-home user
-awk -F: '$1!="user"' /etc/subuid >/etc/subuid.tmp
+adduser --gecos user --disabled-password user
+sysctl -w kernel.unprivileged_userns_clone=1
+awk -F: '$1!="user"' /etc/subuid > /etc/subuid.tmp
 mv /etc/subuid.tmp /etc/subuid
 ret=0
 runuser -u user -- {{ CMD }} --mode=unshare --variant=apt {{ DIST }} /tmp/debian-chroot {{ MIRROR }} || ret=$?
@@ -14,4 +15,4 @@ if [ "$ret" = 0 ]; then
 	echo expected failure but got exit $ret >&2
 	exit 1
 fi
-[ ! -e /tmp/debian-chroot ]
+rm -r /tmp/debian-chroot

tests/file-mirror

@@ -5,9 +5,6 @@ if [ ! -e /mmdebstrap-testenv ]; then
 	echo "this test requires the cache directory to be mounted on /mnt and should only be run inside a container" >&2
 	exit 1
 fi
-{{ CMD }} --mode={{ MODE }} --variant=apt \
-  --setup-hook='mkdir -p "$1"/mnt/cache/debian; mount -o ro,bind /mnt/cache/debian "$1"/mnt/cache/debian' \
-  --customize-hook='umount "$1"/mnt/cache/debian; rmdir "$1"/mnt/cache/debian "$1"/mnt/cache' \
-  {{ DIST }} /tmp/debian-chroot.tar "deb file:///mnt/cache/debian {{ DIST }} main"
+{{ CMD }} --mode={{ MODE }} --variant=apt --setup-hook='mkdir -p "$1"/mnt/cache/debian; mount -o ro,bind /mnt/cache/debian "$1"/mnt/cache/debian' --customize-hook='umount "$1"/mnt/cache/debian; rmdir "$1"/mnt/cache/debian "$1"/mnt/cache' {{ DIST }} /tmp/debian-chroot.tar "deb file:///mnt/cache/debian {{ DIST }} main"
 tar -tf /tmp/debian-chroot.tar | sort | diff -u tar1.txt -
 rm /tmp/debian-chroot.tar

tests/file-mirror-automount-hook

@@ -5,8 +5,8 @@ if [ ! -e /mmdebstrap-testenv ]; then
 	echo "this test requires the cache directory to be mounted on /mnt and should only be run inside a container" >&2
 	exit 1
 fi
-if [ "$(id -u)" -eq 0 ] && ! id -u user >/dev/null 2>&1; then
-  useradd --home-dir /home/user --create-home user
+if [ "$(id -u)" -eq 0 ] && ! id -u user > /dev/null 2>&1; then
+	adduser --gecos user --disabled-password user
 fi
 prefix=
 [ "$(id -u)" -eq 0 ] && [ "{{ MODE }}" != "root" ] && prefix="runuser -u user --"

tests/hook-directory

@@ -4,12 +4,12 @@ export LC_ALL=C.UTF-8
 for h in hookA hookB; do
 	mkdir /tmp/$h
 	for s in setup extract essential customize; do
-    cat <<SCRIPT >/tmp/$h/${s}00.sh
+		cat << SCRIPT > /tmp/$h/${s}00.sh
 #!/bin/sh
 echo $h/${s}00 >> "\$1/$s"
 SCRIPT
 		chmod +x /tmp/$h/${s}00.sh
-    cat <<SCRIPT >/tmp/$h/${s}01.sh
+		cat << SCRIPT > /tmp/$h/${s}01.sh
 echo $h/${s}01 >> "\$1/$s"
 SCRIPT
 		chmod +x /tmp/$h/${s}01.sh

tests/i386-which-can-be-executed-without-qemu

@@ -6,37 +6,33 @@ if [ ! -e /mmdebstrap-testenv ]; then
 	exit 1
 fi
 # remove qemu just to be sure
-apt-get remove --yes qemu-user-binfmt binfmt-support qemu-user
+apt-get remove --yes qemu-user-static binfmt-support qemu-user
 {{ CMD }} --mode={{ MODE }} --variant=apt --architectures=i386 {{ DIST }} /tmp/debian-chroot.tar {{ MIRROR }}
 # we ignore differences between architectures by ignoring some files
 # and renaming others
-{
-  tar -tf /tmp/debian-chroot.tar \
+{ tar -tf /tmp/debian-chroot.tar \
 	| grep -v '^\./usr/bin/i386$' \
-    | grep -v '^\./usr/lib/ld-linux\.so\.2$' \
-    | grep -v '^\./usr/lib/i386-linux-gnu/ld-linux\.so\.2$' \
+	| grep -v '^\./lib/ld-linux\.so\.2$' \
+	| grep -v '^\./lib/i386-linux-gnu/ld-linux\.so\.2$' \
 	| grep -v '^\./usr/lib/gcc/i686-linux-gnu/$' \
 	| grep -v '^\./usr/lib/gcc/i686-linux-gnu/[0-9]\+/$' \
 	| grep -v '^\./usr/share/man/man8/i386\.8\.gz$' \
 	| grep -v '^\./usr/share/doc/[^/]\+/changelog\(\.Debian\)\?\.i386\.gz$' \
 	| sed 's/i386-linux-gnu/x86_64-linux-gnu/' \
-    | sed 's/i386/amd64/' \
-    | sed 's/\/stubs-32.ph$/\/stubs-64.ph/'
-} | sort >tar2.txt
-{
-  grep <tar1.txt -v '^\./usr/bin/i386$' \
+	| sed 's/i386/amd64/';
+} | sort > tar2.txt
+{ cat tar1.txt \
+	| grep -v '^\./usr/bin/i386$' \
 	| grep -v '^\./usr/bin/x86_64$' \
-    | grep -v '^\./usr/lib32/$' \
-    | grep -v '^\./lib32$' \
-    | grep -v '^\./lib64$' \
-    | grep -v '^\./usr/lib64/$' \
-    | grep -v '^\./usr/lib64/ld-linux-x86-64\.so\.2$' \
+	| grep -v '^\./lib64/$' \
+	| grep -v '^\./lib64/ld-linux-x86-64\.so\.2$' \
 	| grep -v '^\./usr/lib/gcc/x86_64-linux-gnu/$' \
 	| grep -v '^\./usr/lib/gcc/x86_64-linux-gnu/[0-9]\+/$' \
-    | grep -v '^\./usr/lib/x86_64-linux-gnu/ld-linux-x86-64\.so\.2$' \
-    | grep -v '^\./usr/lib/x86_64-linux-gnu/libmvec\.so\.1$' \
+	| grep -v '^\./lib/x86_64-linux-gnu/ld-linux-x86-64\.so\.2$' \
+	| grep -v '^\./lib/x86_64-linux-gnu/libmvec-2\.[0-9]\+\.so$' \
+	| grep -v '^\./lib/x86_64-linux-gnu/libmvec\.so\.1$' \
 	| grep -v '^\./usr/share/doc/[^/]\+/changelog\(\.Debian\)\?\.amd64\.gz$' \
 	| grep -v '^\./usr/share/man/man8/i386\.8\.gz$' \
-    | grep -v '^\./usr/share/man/man8/x86_64\.8\.gz$'
-} | sort | diff -u - tar2.txt >&2
+	| grep -v '^\./usr/share/man/man8/x86_64\.8\.gz$';
+} | sort | diff -u - tar2.txt
 rm /tmp/debian-chroot.tar

tests/include

@@ -3,9 +3,10 @@ set -eu
 export LC_ALL=C.UTF-8
 trap "rm -rf /tmp/debian-chroot" EXIT INT TERM
 {{ CMD }} --mode=root --variant=apt --include=doc-debian {{ DIST }} /tmp/debian-chroot {{ MIRROR }}
-rm /tmp/debian-chroot/usr/share/doc-base/doc-debian.debian-*
+rm /tmp/debian-chroot/usr/share/doc-base/debian-*
 rm -r /tmp/debian-chroot/usr/share/doc/debian
 rm -r /tmp/debian-chroot/usr/share/doc/doc-debian
+rm /tmp/debian-chroot/var/lib/apt/extended_states
 rm /tmp/debian-chroot/var/lib/dpkg/info/doc-debian.list
 rm /tmp/debian-chroot/var/lib/dpkg/info/doc-debian.md5sums
 tar -C /tmp/debian-chroot --one-file-system -c . | tar -t | sort | diff -u tar1.txt -

tests/include-deb-file

@@ -1,40 +0,0 @@
-#!/bin/sh
-
-set -eu
-export LC_ALL=C.UTF-8
-
-trap "rm -rf /tmp/dummypkg.deb /tmp/dummypkg" EXIT INT TERM
-
-prefix=
-if [ "$(id -u)" -eq 0 ] && [ "{{ MODE }}" != "root" ] && [ "{{ MODE }}" != "auto" ]; then
-  if ! id "${SUDO_USER:-user}" >/dev/null 2>&1; then
-    if [ ! -e /mmdebstrap-testenv ]; then
-      echo "this test modifies the system and should only be run inside a container" >&2
-      exit 1
-    fi
-    useradd --home-dir "/home/${SUDO_USER:-user}" --create-home "${SUDO_USER:-user}"
-  fi
-  prefix="runuser -u ${SUDO_USER:-user} --"
-fi
-
-# instead of obtaining a .deb from our cache, we create a new package because
-# otherwise apt might decide to download the package with the same name and
-# version from the cache instead of using the local .deb
-mkdir -p /tmp/dummypkg/DEBIAN
-cat <<END >"/tmp/dummypkg/DEBIAN/control"
-Package: dummypkg
-Priority: optional
-Section: oldlibs
-Maintainer: Johannes Schauer Marin Rodrigues <josch@debian.org>
-Architecture: all
-Multi-Arch: foreign
-Source: dummypkg
-Version: 1
-Description: dummypkg
-END
-dpkg-deb --build "/tmp/dummypkg" "/tmp/dummypkg.deb"
-
-$prefix {{ CMD }} --mode={{ MODE }} --variant=apt --include="/tmp/dummypkg.deb" \
-  --hook-dir=./hooks/file-mirror-automount \
-  --customize-hook='chroot "$1" dpkg-query -W -f="\${Status}\n" dummypkg | grep "^install ok installed$"' \
-  {{ DIST }} /dev/null {{ MIRROR }}

tests/include-foreign-libmagic-mgc-with-multiple-arch-options

@@ -1,50 +0,0 @@
-#!/bin/sh
-#
-# to test foreign architecture package installation we choose a package which
-#   - is not part of the native installation set
-#   - does not have any dependencies
-#   - installs only few files
-#   - doesn't change its name regularly (like gcc-*-base)
-
-case "$(dpkg --print-architecture)" in
-  arm64)
-    native_arch=arm64
-    foreign_arch=amd64
-    ;;
-  amd64)
-    native_arch=amd64
-    foreign_arch=arm64
-    ;;
-  *)
-    echo "unsupported native architecture" >&2
-    exit 1
-    ;;
-esac
-
-set -eu
-export LC_ALL=C.UTF-8
-{{ CMD }} --mode=root --variant=apt \
-  --architectures="$native_arch" \
-  --architectures="$foreign_arch" \
-  --include="libmagic-mgc:$foreign_arch" \
-  {{ DIST }} /tmp/debian-chroot {{ MIRROR }}
-{
-  echo "$native_arch"
-  echo "$foreign_arch"
-} | cmp /tmp/debian-chroot/var/lib/dpkg/arch -
-rm /tmp/debian-chroot/usr/lib/file/magic.mgc
-rm /tmp/debian-chroot/usr/share/doc/libmagic-mgc/README.Debian
-rm -f /tmp/debian-chroot/usr/share/doc/libmagic-mgc/"changelog.Debian.$foreign_arch.gz"
-rm /tmp/debian-chroot/usr/share/doc/libmagic-mgc/changelog.Debian.gz
-rm /tmp/debian-chroot/usr/share/doc/libmagic-mgc/changelog.gz
-rm /tmp/debian-chroot/usr/share/doc/libmagic-mgc/copyright
-rm /tmp/debian-chroot/usr/share/file/magic.mgc
-rm /tmp/debian-chroot/usr/share/misc/magic.mgc
-rm /tmp/debian-chroot/var/lib/dpkg/info/libmagic-mgc.list
-rm /tmp/debian-chroot/var/lib/dpkg/info/libmagic-mgc.md5sums
-rmdir /tmp/debian-chroot/usr/share/doc/libmagic-mgc/
-rmdir /tmp/debian-chroot/usr/share/file/magic/
-rmdir /tmp/debian-chroot/usr/share/file/
-rmdir /tmp/debian-chroot/usr/lib/file/
-tar -C /tmp/debian-chroot --one-file-system -c . | tar -t | sort | diff -u tar1.txt -
-rm -r /tmp/debian-chroot

tests/include-libmagic-mgc-arm64

@@ -6,41 +6,21 @@
 #   - installs only few files
 #   - doesn't change its name regularly (like gcc-*-base)
 
-case "$(dpkg --print-architecture)" in
-  arm64)
-    native_arch=arm64
-    foreign_arch=amd64
-    ;;
-  amd64)
-    native_arch=amd64
-    foreign_arch=arm64
-    ;;
-  *)
-    echo "unsupported native architecture" >&2
-    exit 1
-    ;;
-esac
-
 set -eu
 export LC_ALL=C.UTF-8
-{{ CMD }} --mode=root --variant=apt \
-  --architectures="$native_arch,$foreign_arch" \
-  --include="libmagic-mgc:$foreign_arch" \
-  {{ DIST }} /tmp/debian-chroot {{ MIRROR }}
-{
-  echo "$native_arch"
-  echo "$foreign_arch"
-} | cmp /tmp/debian-chroot/var/lib/dpkg/arch -
+{{ CMD }} --mode=root --variant=apt --architectures=amd64,arm64 --include=libmagic-mgc:arm64 {{ DIST }} /tmp/debian-chroot {{ MIRROR }}
+{ echo "amd64"; echo "arm64"; } | cmp /tmp/debian-chroot/var/lib/dpkg/arch -
+rm /tmp/debian-chroot/var/lib/dpkg/arch
+rm /tmp/debian-chroot/var/lib/apt/extended_states
+rm /tmp/debian-chroot/var/lib/dpkg/info/libmagic-mgc.list
+rm /tmp/debian-chroot/var/lib/dpkg/info/libmagic-mgc.md5sums
 rm /tmp/debian-chroot/usr/lib/file/magic.mgc
 rm /tmp/debian-chroot/usr/share/doc/libmagic-mgc/README.Debian
-rm -f /tmp/debian-chroot/usr/share/doc/libmagic-mgc/"changelog.Debian.$foreign_arch.gz"
 rm /tmp/debian-chroot/usr/share/doc/libmagic-mgc/changelog.Debian.gz
 rm /tmp/debian-chroot/usr/share/doc/libmagic-mgc/changelog.gz
 rm /tmp/debian-chroot/usr/share/doc/libmagic-mgc/copyright
 rm /tmp/debian-chroot/usr/share/file/magic.mgc
 rm /tmp/debian-chroot/usr/share/misc/magic.mgc
-rm /tmp/debian-chroot/var/lib/dpkg/info/libmagic-mgc.list
-rm /tmp/debian-chroot/var/lib/dpkg/info/libmagic-mgc.md5sums
 rmdir /tmp/debian-chroot/usr/share/doc/libmagic-mgc/
 rmdir /tmp/debian-chroot/usr/share/file/magic/
 rmdir /tmp/debian-chroot/usr/share/file/

tests/include-libmagic-mgc-arm64-with-multiple-arch-options

@@ -0,0 +1,22 @@
+#!/bin/sh
+set -eu
+export LC_ALL=C.UTF-8
+{{ CMD }} --mode=root --variant=apt --architectures=amd64 --architectures=arm64 --include=libmagic-mgc:arm64 {{ DIST }} /tmp/debian-chroot {{ MIRROR }}
+{ echo "amd64"; echo "arm64"; } | cmp /tmp/debian-chroot/var/lib/dpkg/arch -
+rm /tmp/debian-chroot/var/lib/dpkg/arch
+rm /tmp/debian-chroot/var/lib/apt/extended_states
+rm /tmp/debian-chroot/var/lib/dpkg/info/libmagic-mgc.list
+rm /tmp/debian-chroot/var/lib/dpkg/info/libmagic-mgc.md5sums
+rm /tmp/debian-chroot/usr/lib/file/magic.mgc
+rm /tmp/debian-chroot/usr/share/doc/libmagic-mgc/README.Debian
+rm /tmp/debian-chroot/usr/share/doc/libmagic-mgc/changelog.Debian.gz
+rm /tmp/debian-chroot/usr/share/doc/libmagic-mgc/changelog.gz
+rm /tmp/debian-chroot/usr/share/doc/libmagic-mgc/copyright
+rm /tmp/debian-chroot/usr/share/file/magic.mgc
+rm /tmp/debian-chroot/usr/share/misc/magic.mgc
+rmdir /tmp/debian-chroot/usr/share/doc/libmagic-mgc/
+rmdir /tmp/debian-chroot/usr/share/file/magic/
+rmdir /tmp/debian-chroot/usr/share/file/
+rmdir /tmp/debian-chroot/usr/lib/file/
+tar -C /tmp/debian-chroot --one-file-system -c . | tar -t | sort | diff -u tar1.txt -
+rm -r /tmp/debian-chroot

tests/install-busybox-based-sub-essential-system

@@ -1,9 +1,6 @@
 #!/bin/sh
 set -eu
 export LC_ALL=C.UTF-8
-
-trap "rm -rf /tmp/debian-chroot" EXIT INT TERM
-
 pkgs=base-files,base-passwd,busybox,debianutils,dpkg,libc-bin,mawk,tar
 # busybox --install -s will install symbolic links into the rootfs, leaving
 # existing files untouched. It has to run after extraction (otherwise there is
@@ -15,27 +12,22 @@ pkgs=base-files,base-passwd,busybox,debianutils,dpkg,libc-bin,mawk,tar
     --setup-hook='printf "root:x:0:\nmail:x:8:\nutmp:x:43:\n" > "$1/etc/group"' \
     --extract-hook='chroot "$1" busybox --install -s' \
     {{ DIST }} /tmp/debian-chroot {{ MIRROR }}
-echo "$pkgs" | tr ',' '\n' >/tmp/expected
+echo "$pkgs" | tr ',' '\n' > /tmp/expected
 chroot /tmp/debian-chroot dpkg-query -f '${binary:Package}\n' -W \
 	| comm -12 - /tmp/expected \
 	| diff -u - /tmp/expected
 rm /tmp/expected
 for cmd in echo cat sed grep; do
 	test -L /tmp/debian-chroot/bin/$cmd
-  test "$(readlink /tmp/debian-chroot/bin/$cmd)" = "/usr/bin/busybox"
+	test "$(readlink /tmp/debian-chroot/bin/$cmd)" = "/bin/busybox"
 done
-for cmd in sort tee; do
+for cmd in sort; do
 	test -L /tmp/debian-chroot/usr/bin/$cmd
-  test "$(readlink /tmp/debian-chroot/usr/bin/$cmd)" = "/usr/bin/busybox"
+	test "$(readlink /tmp/debian-chroot/usr/bin/$cmd)" = "/bin/busybox"
 done
-
-# if /bin or /sbin are not symlinks, add /bin and /sbin to PATH
-if [ ! -L /tmp/debian-chroot/bin ] || [ ! -L /tmp/debian-chroot/sbin ]; then
-  export PATH="$PATH:/sbin:/bin"
-fi
 chroot /tmp/debian-chroot echo foobar \
 	| chroot /tmp/debian-chroot cat \
 	| chroot /tmp/debian-chroot sort \
-  | chroot /tmp/debian-chroot tee /dev/null \
 	| chroot /tmp/debian-chroot sed 's/foobar/blubber/' \
 	| chroot /tmp/debian-chroot grep blubber >/dev/null
+rm -r /tmp/debian-chroot

tests/install-doc-debian

@@ -1,30 +1,21 @@
 #!/bin/sh
 set -eu
 export LC_ALL=C.UTF-8
-
-[ {{ VARIANT }} = "custom" ]
-[ {{ MODE }} = "chrootless" ]
-
-trap "rm -rf /tmp/debian-chroot" EXIT INT TERM
-
-prefix=
-if [ "$(id -u)" -eq 0 ] && [ "{{ MODE }}" != "root" ] && [ "{{ MODE }}" != "auto" ]; then
-  if ! id "${SUDO_USER:-user}" >/dev/null 2>&1; then
+if [ "$(id -u)" -eq 0 ] && ! id -u user > /dev/null 2>&1; then
 	if [ ! -e /mmdebstrap-testenv ]; then
 		echo "this test modifies the system and should only be run inside a container" >&2
 		exit 1
 	fi
-    useradd --home-dir "/home/${SUDO_USER:-user}" --create-home "${SUDO_USER:-user}"
-  fi
-  prefix="runuser -u ${SUDO_USER:-user} --"
+	adduser --gecos user --disabled-password user
 fi
-
-$prefix {{ CMD }} --mode={{ MODE }} --variant={{ VARIANT }} --include=doc-debian {{ DIST }} /tmp/debian-chroot {{ MIRROR }}
-tar -C /tmp/debian-chroot --owner=0 --group=0 --numeric-owner --sort=name --clamp-mtime --mtime="$(date --utc --date=@{{ SOURCE_DATE_EPOCH }} --iso-8601=seconds)" -cf /tmp/debian-chroot.tar .
-tar tvf /tmp/debian-chroot.tar >doc-debian.tar.list
+prefix=
+[ "$(id -u)" -eq 0 ] && prefix="runuser -u user --"
+$prefix {{ CMD }} --mode=chrootless --variant=custom --include=doc-debian {{ DIST }} /tmp/debian-chroot {{ MIRROR }}
+tar -C /tmp/debian-chroot --owner=0 --group=0 --numeric-owner --sort=name --clamp-mtime --mtime=$(date --utc --date=@{{ SOURCE_DATE_EPOCH }} --iso-8601=seconds) -cf /tmp/debian-chroot.tar .
+tar tvf /tmp/debian-chroot.tar > doc-debian.tar.list
 rm /tmp/debian-chroot.tar
 # delete contents of doc-debian
-rm /tmp/debian-chroot/usr/share/doc-base/doc-debian.debian-*
+rm /tmp/debian-chroot/usr/share/doc-base/debian-*
 rm -r /tmp/debian-chroot/usr/share/doc/debian
 rm -r /tmp/debian-chroot/usr/share/doc/doc-debian
 # delete real files
@@ -33,7 +24,6 @@ rm /tmp/debian-chroot/etc/fstab
 rm /tmp/debian-chroot/etc/hostname
 rm /tmp/debian-chroot/etc/resolv.conf
 rm /tmp/debian-chroot/var/lib/dpkg/status
-rm /tmp/debian-chroot/var/lib/dpkg/arch
 rm /tmp/debian-chroot/var/cache/apt/archives/lock
 rm /tmp/debian-chroot/var/lib/dpkg/lock
 rm /tmp/debian-chroot/var/lib/dpkg/lock-frontend

tests/install-doc-debian-and-output-tarball

@@ -2,22 +2,15 @@
 set -eu
 export LC_ALL=C.UTF-8
 export SOURCE_DATE_EPOCH={{ SOURCE_DATE_EPOCH }}
-
-[ {{ VARIANT }} = "custom" ]
-[ {{ MODE }} = "chrootless" ]
-
-prefix=
-if [ "$(id -u)" -eq 0 ] && [ "{{ MODE }}" != "root" ] && [ "{{ MODE }}" != "auto" ]; then
-  if ! id "${SUDO_USER:-user}" >/dev/null 2>&1; then
+if [ "$(id -u)" -eq 0 ] && ! id -u user > /dev/null 2>&1; then
 	if [ ! -e /mmdebstrap-testenv ]; then
 		echo "this test modifies the system and should only be run inside a container" >&2
 		exit 1
 	fi
-    useradd --home-dir "/home/${SUDO_USER:-user}" --create-home "${SUDO_USER:-user}"
-  fi
-  prefix="runuser -u ${SUDO_USER:-user} --"
+	adduser --gecos user --disabled-password user
 fi
-
-$prefix {{ CMD }} --mode={{ MODE }} --variant={{ VARIANT }} --include=doc-debian {{ DIST }} /tmp/debian-chroot.tar {{ MIRROR }}
+prefix=
+[ "$(id -u)" -eq 0 ] && prefix="runuser -u user --"
+$prefix {{ CMD }} --mode=chrootless --variant=custom --include=doc-debian {{ DIST }} /tmp/debian-chroot.tar {{ MIRROR }}
 tar tvf /tmp/debian-chroot.tar | grep -v ' ./dev' | diff -u doc-debian.tar.list -
 rm /tmp/debian-chroot.tar

tests/install-doc-debian-and-test-hooks

@@ -2,32 +2,23 @@
 set -eu
 export LC_ALL=C.UTF-8
 export SOURCE_DATE_EPOCH={{ SOURCE_DATE_EPOCH }}
-
-[ {{ VARIANT }} = "custom" ]
-[ {{ MODE }} = "chrootless" ]
-
-trap "rm -rf /tmp/debian-chroot" EXIT INT TERM
-
-prefix=
-if [ "$(id -u)" -eq 0 ] && [ "{{ MODE }}" != "root" ] && [ "{{ MODE }}" != "auto" ]; then
-  if ! id "${SUDO_USER:-user}" >/dev/null 2>&1; then
+if [ "$(id -u)" -eq 0 ] && ! id -u user > /dev/null 2>&1; then
 	if [ ! -e /mmdebstrap-testenv ]; then
 		echo "this test modifies the system and should only be run inside a container" >&2
 		exit 1
 	fi
-    useradd --home-dir "/home/${SUDO_USER:-user}" --create-home "${SUDO_USER:-user}"
-  fi
-  prefix="runuser -u ${SUDO_USER:-user} --"
+	adduser --gecos user --disabled-password user
 fi
-
-$prefix {{ CMD }} --mode={{ MODE }} --skip=cleanup/tmp --variant={{ VARIANT }} --include=doc-debian --setup-hook='touch "$1/tmp/setup"' --customize-hook='touch "$1/tmp/customize"' {{ DIST }} /tmp/debian-chroot {{ MIRROR }}
+prefix=
+[ "$(id -u)" -eq 0 ] && prefix="runuser -u user --"
+$prefix {{ CMD }} --mode=chrootless --skip=cleanup/tmp --variant=custom --include=doc-debian --setup-hook='touch "$1/tmp/setup"' --customize-hook='touch "$1/tmp/customize"' {{ DIST }} /tmp/debian-chroot {{ MIRROR }}
 rm /tmp/debian-chroot/tmp/setup
 rm /tmp/debian-chroot/tmp/customize
-tar -C /tmp/debian-chroot --owner=0 --group=0 --numeric-owner --sort=name --clamp-mtime --mtime="$(date --utc --date=@{{ SOURCE_DATE_EPOCH }} --iso-8601=seconds)" -cf /tmp/debian-chroot.tar .
+tar -C /tmp/debian-chroot --owner=0 --group=0 --numeric-owner --sort=name --clamp-mtime --mtime=$(date --utc --date=@{{ SOURCE_DATE_EPOCH }} --iso-8601=seconds) -cf /tmp/debian-chroot.tar .
 tar tvf /tmp/debian-chroot.tar | grep -v ' ./dev' | diff -u doc-debian.tar.list -
 rm /tmp/debian-chroot.tar
 # delete contents of doc-debian
-rm /tmp/debian-chroot/usr/share/doc-base/doc-debian.debian-*
+rm /tmp/debian-chroot/usr/share/doc-base/debian-*
 rm -r /tmp/debian-chroot/usr/share/doc/debian
 rm -r /tmp/debian-chroot/usr/share/doc/doc-debian
 # delete real files
@@ -36,7 +27,6 @@ rm /tmp/debian-chroot/etc/fstab
 rm /tmp/debian-chroot/etc/hostname
 rm /tmp/debian-chroot/etc/resolv.conf
 rm /tmp/debian-chroot/var/lib/dpkg/status
-rm /tmp/debian-chroot/var/lib/dpkg/arch
 rm /tmp/debian-chroot/var/cache/apt/archives/lock
 rm /tmp/debian-chroot/var/lib/dpkg/lock
 rm /tmp/debian-chroot/var/lib/dpkg/lock-frontend

tests/install-known-good-from-essential-yes

@@ -0,0 +1,43 @@
+#!/bin/sh
+#
+# regularly check whether more packages work with chrootless:
+# for p in $(grep-aptavail -F Essential yes -s Package -n | sort -u); do ./mmdebstrap --             mode=chrootless --variant=custom --include=bsdutils,coreutils,debianutils,diffutils,dpkg,            findutils,grep,gzip,hostname,init-system-helpers,ncurses-base,ncurses-bin,perl-base,sed,             sysvinit-utils,tar,$p unstable /dev/null; done
+#
+# see https://bugs.debian.org/cgi-bin/pkgreport.cgi?users=debian-dpkg@lists.debian.org;tag=dpkg-     root-support
+#
+# base-files: #824594
+# base-passwd: debconf
+# bash: depends base-files
+# bsdutils: ok
+# coreutils: ok
+# dash: debconf
+# debianutils: ok
+# diffutils: ok
+# dpkg: ok
+# findutils: ok
+# grep: ok
+# gzip: ok
+# hostname: ok
+# init-system-helpers: ok
+# libc-bin: #983412
+# login: debconf
+# ncurses-base: ok
+# ncurses-bin: ok
+# perl-base: ok
+# sed: ok
+# sysvinit-utils: ok
+# tar: ok
+# util-linux: debconf
+
+set -eu
+export LC_ALL=C.UTF-8
+if [ "$(id -u)" -eq 0 ] && ! id -u user > /dev/null 2>&1; then
+	if [ ! -e /mmdebstrap-testenv ]; then
+		echo "this test modifies the system and should only be run inside a container" >&2
+		exit 1
+	fi
+	adduser --gecos user --disabled-password user
+fi
+prefix=
+[ "$(id -u)" -eq 0 ] && prefix="runuser -u user --"
+$prefix {{ CMD }} --mode=chrootless --variant=custom --include=bsdutils,coreutils,debianutils,diffutils,dpkg,findutils,grep,gzip,hostname,init-system-helpers,ncurses-base,ncurses-bin,perl-base,sed,sysvinit-utils,tar {{ DIST }} /dev/null {{ MIRROR }}

tests/install-libmagic-mgc-on-arm64

@@ -1,43 +1,22 @@
 #!/bin/sh
 set -eu
 export LC_ALL=C.UTF-8
-
-[ {{ VARIANT }} = "custom" ]
-[ {{ MODE }} = "chrootless" ]
-
-prefix=
-if [ "$(id -u)" -eq 0 ] && [ "{{ MODE }}" != "root" ] && [ "{{ MODE }}" != "auto" ]; then
-  if ! id "${SUDO_USER:-user}" >/dev/null 2>&1; then
+if [ "$(id -u)" -eq 0 ] && ! id -u user > /dev/null 2>&1; then
 	if [ ! -e /mmdebstrap-testenv ]; then
 		echo "this test modifies the system and should only be run inside a container" >&2
 		exit 1
 	fi
-    useradd --home-dir "/home/${SUDO_USER:-user}" --create-home "${SUDO_USER:-user}"
-  fi
-  prefix="runuser -u ${SUDO_USER:-user} --"
+	adduser --gecos user --disabled-password user
 fi
-
-case "$(dpkg --print-architecture)" in
-  arm64)
-    foreign_arch=amd64
-    ;;
-  amd64)
-    foreign_arch=arm64
-    ;;
-  *)
-    echo "unsupported native architecture" >&2
-    exit 1
-    ;;
-esac
-
-$prefix {{ CMD }} --mode={{ MODE }} --variant={{ VARIANT }} --architectures="$foreign_arch" --include=libmagic-mgc {{ DIST }} /tmp/debian-chroot {{ MIRROR }}
+prefix=
+[ "$(id -u)" -eq 0 ] && prefix="runuser -u user --"
+$prefix {{ CMD }} --mode=chrootless --variant=custom --architectures=arm64 --include=libmagic-mgc {{ DIST }} /tmp/debian-chroot {{ MIRROR }}
 # delete contents of libmagic-mgc
 rm /tmp/debian-chroot/usr/lib/file/magic.mgc
 rm /tmp/debian-chroot/usr/share/doc/libmagic-mgc/README.Debian
 rm /tmp/debian-chroot/usr/share/doc/libmagic-mgc/changelog.Debian.gz
 rm /tmp/debian-chroot/usr/share/doc/libmagic-mgc/changelog.gz
 rm /tmp/debian-chroot/usr/share/doc/libmagic-mgc/copyright
-rm -f /tmp/debian-chroot/usr/share/doc/libmagic-mgc/"changelog.Debian.$foreign_arch.gz"
 rm /tmp/debian-chroot/usr/share/file/magic.mgc
 rm /tmp/debian-chroot/usr/share/misc/magic.mgc
 # delete real files

tests/jessie-or-older

@@ -1,43 +0,0 @@
-#!/bin/sh
-set -eu
-export LC_ALL=C.UTF-8
-export SOURCE_DATE_EPOCH={{ SOURCE_DATE_EPOCH }}
-
-trap "rm -f /tmp/debian-chroot-{{ MODE }}.tar /tmp/debian-chroot-root-normal.tar" EXIT INT TERM
-
-[ "$(id -u)" -eq 0 ]
-
-prefix=
-if [ "$(id -u)" -eq 0 ] && [ "{{ MODE }}" != "root" ] && [ "{{ MODE }}" != "auto" ]; then
-  if ! id "${SUDO_USER:-user}" >/dev/null 2>&1; then
-    if [ ! -e /mmdebstrap-testenv ]; then
-      echo "this test modifies the system and should only be run inside a container" >&2
-      exit 1
-    fi
-    useradd --home-dir "/home/${SUDO_USER:-user}" --create-home "${SUDO_USER:-user}"
-  fi
-  prefix="runuser -u ${SUDO_USER:-user} --"
-fi
-
-MMTARFILTER=
-[ -x /usr/bin/mmtarfilter ] && MMTARFILTER=/usr/bin/mmtarfilter
-[ -x ./tarfilter ] && MMTARFILTER=./tarfilter
-
-filter() {
-  "$MMTARFILTER" \
-    --path-exclude=/usr/bin/uncompress \
-    --path-exclude=/var/cache/debconf/config.dat-old \
-    --path-exclude=/var/cache/debconf/templates.dat-old \
-    --path-exclude=/var/lib/dpkg/available \
-    --path-exclude=/var/lib/dpkg/diversions \
-    --path-exclude=/var/lib/dpkg/diversions-old \
-    --path-exclude=/var/lib/dpkg/cmethopt \
-    --path-exclude=/var/lib/dpkg/status-old \
-    --path-exclude=/var/lib/shells.state
-}
-
-# base for comparison without jessie-or-older hook
-{{ CMD }} --mode=root --variant={{ VARIANT }} {{ DIST }} - {{ MIRROR }} >/tmp/debian-chroot-root-normal.tar
-
-$prefix {{ CMD }} --mode={{ MODE }} --variant={{ VARIANT }} --hook-dir=./hooks/jessie-or-older {{ DIST }} - {{ MIRROR }} | filter >/tmp/debian-chroot-{{ MODE }}.tar
-filter </tmp/debian-chroot-root-normal.tar | cmp - /tmp/debian-chroot-{{ MODE }}.tar

tests/keyring

@@ -5,12 +5,7 @@ if [ ! -e /mmdebstrap-testenv ]; then
 	echo "this test modifies the system and should only be run inside a container" >&2
 	exit 1
 fi
-for f in /etc/apt/trusted.gpg.d/*.gpg /etc/apt/trusted.gpg.d/*.asc; do
-  [ -e "$f" ] || continue
-  rm "$f"
-done
-rmdir /etc/apt/trusted.gpg.d
-mkdir /etc/apt/trusted.gpg.d
+rm /etc/apt/trusted.gpg.d/*.gpg
 {{ CMD }} --mode=root --variant=apt --keyring=/usr/share/keyrings/debian-archive-keyring.gpg --keyring=/usr/share/keyrings/ {{ DIST }} /tmp/debian-chroot "deb {{ MIRROR }} {{ DIST }} main"
 # make sure that no [signedby=...] managed to make it into the sources.list
 echo "deb {{ MIRROR }} {{ DIST }} main" | cmp /tmp/debian-chroot/etc/apt/sources.list -

tests/logfile

@@ -1,23 +1,20 @@
 #!/bin/sh
 set -eu
 export LC_ALL=C.UTF-8
-
-trap "rm -rf /tmp/debian-chroot /tmp/log /tmp/trimmed" EXIT INT TERM
-
 # we check the full log to also prevent debug printfs to accidentally make it into a commit
 {{ CMD }} --mode=root --variant=apt --logfile=/tmp/log {{ DIST }} /tmp/debian-chroot {{ MIRROR }}
 # omit the last line which should contain the runtime
-head --lines=-1 /tmp/log >/tmp/trimmed
-cat <<LOG | diff -u - /tmp/trimmed
+head --lines=-1 /tmp/log > /tmp/trimmed
+cat << LOG | diff -u - /tmp/trimmed
 I: chroot architecture {{ HOSTARCH }} is equal to the host's architecture
-I: finding correct signed-by value...
 I: automatically chosen format: directory
 I: running apt-get update...
 I: downloading packages with apt...
 I: extracting archives...
 I: installing essential packages...
-I: installing remaining packages inside the chroot...
 I: cleaning package lists and apt cache...
 LOG
 tail --lines=1 /tmp/log | grep '^I: success in .* seconds$'
 tar -C /tmp/debian-chroot --one-file-system -c . | tar -t | sort | diff -u tar1.txt -
+rm -r /tmp/debian-chroot
+rm /tmp/log /tmp/trimmed

tests/merged-fakechroot-inside-unmerged-chroot

@@ -1,49 +0,0 @@
-#!/bin/sh
-#
-# make sure that the $FAKECHROOT_CMD_SUBST environment variable is set up
-# such that one can create a merged-/usr chroot from an unmerged-/usr system
-
-set -eu
-export LC_ALL=C.UTF-8
-export SOURCE_DATE_EPOCH={{ SOURCE_DATE_EPOCH }}
-trap "rm -f /tmp/chroot-fakechroot.tar /tmp/chroot-root.tar" EXIT INT TERM
-[ "$(whoami)" = "root" ]
-{{ CMD }} --mode=root --variant=apt --hook-dir=./hooks/merged-usr {{ DIST }} /tmp/chroot-root.tar {{ MIRROR }}
-cat <<'SCRIPT' >script.sh
-#!/bin/sh
-set -exu
-rootfs="$1"
-mkdir -p "$rootfs/mnt/hooks"
-[ -e /usr/libexec/mmdebstrap/ldconfig.fakechroot ] && cp -a /usr/libexec/mmdebstrap/ldconfig.fakechroot "$rootfs/mnt"
-[ -e ./ldconfig.fakechroot ] && cp -a ./ldconfig.fakechroot "$rootfs/mnt"
-[ -e /usr/share/mmdebstrap/hooks/merged-usr ] && cp -a /usr/share/mmdebstrap/hooks/merged-usr "$rootfs/mnt/hooks"
-[ -e ./hooks/merged-usr ] && cp -a ./hooks/merged-usr "$rootfs/mnt/hooks"
-[ -e /usr/bin/mmdebstrap ] && cp -aT /usr/bin/mmdebstrap "$rootfs/usr/bin/mmdebstrap"
-[ -e ./mmdebstrap ] && cp -aT ./mmdebstrap "$rootfs/mnt/mmdebstrap"
-chroot "$rootfs" env --chdir=/mnt \
-	runuser -u user -- \
-	{{ CMD }} --mode=fakechroot --variant=apt \
-	--hook-dir=./hooks/merged-usr \
-	--customize-hook='chroot "$1" echo "$FAKECHROOT_CMD_SUBST" | tr ":" "\n" | sort' \
-	--customize-hook='chroot "$1" sh -c "exec test \"\$(readlink /bin)\" = usr/bin"' \
-	--customize-hook='chroot "$1" sh -c "exec test \"\$(realpath -e /bin/ldd)\" = /usr/bin/ldd"' \
-	--customize-hook='chroot "$1" echo ":$FAKECHROOT_CMD_SUBST" | grep --quiet :/usr/bin/ldd=' \
-	--customize-hook='chroot "$1" echo ":$FAKECHROOT_CMD_SUBST" | grep --quiet :/bin/ldd=' \
-	--customize-hook='chroot "$1" env PATH=/bin ldd /bin/true 2>&1 | grep --quiet "fakeldd: objdump: command not found: install binutils package"' \
-	--customize-hook='chroot "$1" sh -c "exec test \"\$(readlink /sbin)\" = usr/sbin"' \
-	--customize-hook='chroot "$1" sh -c "exec test \"\$(realpath -e /sbin/ldconfig)\" = /usr/sbin/ldconfig"' \
-	--customize-hook='chroot "$1" echo ":$FAKECHROOT_CMD_SUBST" | grep --quiet :/usr/sbin/ldconfig=' \
-	--customize-hook='chroot "$1" echo ":$FAKECHROOT_CMD_SUBST" | grep --quiet :/sbin/ldconfig=' \
-	--customize-hook='chroot "$1" env PATH=/sbin ldconfig 2>&1 | grep --quiet "/usr/bin/env: ‘python3’: No such file or directory"' \
-	{{ DIST }} /tmp/chroot-fakechroot.tar {{ MIRROR }}
-SCRIPT
-chmod +x script.sh
-{{ CMD }} --mode=root --variant=apt --include=perl,python3,passwd,fakeroot,fakechroot \
-  --hook-dir=./hooks/no-merged-usr \
-  --customize-hook='chroot "$1" useradd --home-dir /home/user --create-home user' \
-  --customize-hook='chroot "$1" sh -c "exec test \"\$(realpath -e /usr/bin/ldd)\" = /usr/bin/ldd"' \
-  --customize-hook='chroot "$1" sh -c "exec test ! -e /usr/sbin/ldconfig"' \
-  --customize-hook=./script.sh \
-  --customize-hook="copy-out /tmp/chroot-fakechroot.tar /tmp" \
-  {{ DIST }} /dev/null {{ MIRROR }}
-cmp /tmp/chroot-fakechroot.tar /tmp/chroot-root.tar || diffoscope /tmp/chroot-fakechroot.tar /tmp/chroot-root.tar

tests/merged-usr-via-setup-hook

@@ -0,0 +1,50 @@
+#!/bin/sh
+set -eu
+export LC_ALL=C.UTF-8
+trap "rm -rf /tmp/debian-chroot" EXIT INT TERM
+{{ CMD }} --mode=root --variant=apt \
+	--essential-hook=./hooks/merged-usr/essential00.sh \
+	--setup-hook=./hooks/merged-usr/setup00.sh \
+	--customize-hook='[ -L "$1"/bin -a -L "$1"/sbin -a -L "$1"/lib ]' \
+	{{ DIST }} /tmp/debian-chroot {{ MIRROR }}
+tar -C /tmp/debian-chroot --one-file-system -c . | tar -t | sort > tar2.txt
+{
+	sed -e 's/^\.\/bin\//.\/usr\/bin\//;s/^\.\/lib\//.\/usr\/lib\//;s/^\.\/sbin\//.\/usr\/sbin\//;' tar1.txt | {
+		case {{ HOSTARCH }} in
+		amd64) sed -e 's/^\.\/lib32\//.\/usr\/lib32\//;s/^\.\/lib64\//.\/usr\/lib64\//;s/^\.\/libx32\//.\/usr\/libx32\//;';;
+		ppc64el) sed -e 's/^\.\/lib64\//.\/usr\/lib64\//;';;
+		*) cat;;
+		esac
+	};
+	echo ./bin;
+	echo ./lib;
+	echo ./sbin;
+	case {{ HOSTARCH }} in
+	amd64)
+		echo ./lib32;
+		echo ./lib64;
+		echo ./libx32;
+		echo ./usr/lib32/;
+		echo ./usr/libx32/;
+		;;
+	i386)
+		echo ./lib64;
+		echo ./libx32;
+		echo ./usr/lib64/;
+		echo ./usr/libx32/;
+		;;
+	ppc64el)
+		echo ./lib64;
+		;;
+	s390x)
+		echo ./lib32;
+		echo ./usr/lib32/;
+		;;
+	esac
+	echo ./usr/share/doc/usr-is-merged/
+	echo ./usr/share/doc/usr-is-merged/changelog.gz
+	echo ./usr/share/doc/usr-is-merged/copyright
+	echo ./var/lib/dpkg/info/usr-is-merged.list
+	echo ./var/lib/dpkg/info/usr-is-merged.md5sums
+	echo ./var/lib/dpkg/info/usr-is-merged.preinst
+} | sort -u | diff -u - tar2.txt

tests/mirror-is-real-file

@@ -2,7 +2,7 @@
 set -eu
 export LC_ALL=C.UTF-8
 trap "rm -f /tmp/debian-chroot.tar /tmp/sources.list" EXIT INT TERM
-echo "deb {{ MIRROR }} {{ DIST }} main" >/tmp/sources.list
+echo "deb {{ MIRROR }} {{ DIST }} main" > /tmp/sources.list
 {{ CMD }} --mode={{ MODE }} --variant=apt {{ DIST }} /tmp/debian-chroot.tar /tmp/sources.list
 tar -tf /tmp/debian-chroot.tar \
 	| sed 's#^./etc/apt/sources.list.d/0000sources.list$#./etc/apt/sources.list#' \