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6 changed files with 203 additions and 162 deletions

View file

@ -1,12 +1,3 @@
0.8.1 (2021-10-07)
------------------
- enforce dpkg >= 1.20.0 and apt >= 2.3.7
- allow working directory be not world readable
- do not run xz and zstd with --threads=0 since this is a bad default for
machines with more than 100 cores
- bit-by-bit identical chrootless mode
0.8.0 (2021-09-21)
------------------

View file

@ -103,12 +103,12 @@ if [ ! -e shared/ldconfig.fakechroot ] || [ ldconfig.fakechroot -nt shared/ldcon
cp -a /usr/libexec/mmdebstrap/ldconfig.fakechroot shared/ldconfig.fakechroot
fi
fi
mkdir -p shared/hooks/merged-usr
if [ ! -e shared/hooks/merged-usr/setup00.sh ] || [ hooks/merged-usr/setup00.sh -nt shared/hooks/merged-usr/setup00.sh ]; then
if [ -e hooks/merged-usr/setup00.sh ]; then
cp -a hooks/merged-usr/setup00.sh shared/hooks/merged-usr/
mkdir -p shared/hooks
if [ ! -e shared/hooks/setup00-merged-usr.sh ] || [ hooks/setup00-merged-usr.sh -nt shared/hooks/setup00-merged-usr.sh ]; then
if [ -e hooks/setup00-merged-usr.sh ]; then
cp -a hooks/setup00-merged-usr.sh shared/hooks/
else
cp -a /usr/share/mmdebstrap/hooks/merged-usr/setup00.sh shared/hooks/merged-usr/
cp -a /usr/share/mmdebstrap/hooks/setup00-merged-usr.sh shared/hooks/
fi
fi
mkdir -p shared/hooks/eatmydata
@ -127,7 +127,7 @@ if [ ! -e shared/hooks/eatmydata/customize.sh ] || [ hooks/eatmydata/customize.s
fi
fi
starttime=
total=213
total=212
skipped=0
runtests=0
i=1
@ -240,7 +240,7 @@ rm /tmp/debian-$dist-debootstrap/var/lib/dpkg/status-old \
/tmp/debian-$dist-mm/var/lib/dpkg/status-old
# remove dpkg files
rm /tmp/debian-$dist-debootstrap/var/lib/dpkg/available
rm /tmp/debian-$dist-debootstrap/var/lib/dpkg/cmethopt
touch /tmp/debian-$dist-debootstrap/var/lib/dpkg/available
# since we installed packages directly from the .deb files, Priorities differ
# thus we first check for equality and then remove the files
chroot /tmp/debian-$dist-debootstrap dpkg --list > dpkg1
@ -1055,39 +1055,6 @@ else
runtests=$((runtests+1))
fi
print_header "mode=unshare,variant=apt: CWD directory not accessible by unshared user"
cat << END > shared/test.sh
#!/bin/sh
set -eu
export LC_ALL=C.UTF-8
if [ ! -e /mmdebstrap-testenv ]; then
echo "this test modifies the system and should only be run inside a container" >&2
exit 1
fi
adduser --gecos user --disabled-password user
sysctl -w kernel.unprivileged_userns_clone=1
mkdir /tmp/debian-chroot
chmod 700 /tmp/debian-chroot
chown user:user /tmp/debian-chroot
if [ "$CMD" = "./mmdebstrap" ]; then
CMD=\$(realpath --canonicalize-existing ./mmdebstrap)
elif [ "$CMD" = "perl -MDevel::Cover=-silent,-nogcov ./mmdebstrap" ]; then
CMD="perl -MDevel::Cover=-silent,-nogcov \$(realpath --canonicalize-existing ./mmdebstrap)"
else
CMD="$CMD"
fi
env --chdir=/tmp/debian-chroot runuser -u user -- \$CMD --mode=unshare --variant=apt $DEFAULT_DIST /tmp/debian-chroot.tar $mirror
tar -tf /tmp/debian-chroot.tar | sort | diff -u tar1.txt -
rm /tmp/debian-chroot.tar
END
if [ "$HAVE_QEMU" = "yes" ]; then
./run_qemu.sh
runtests=$((runtests+1))
else
echo "HAVE_QEMU != yes -- Skipping test..." >&2
skipped=$((skipped+1))
fi
print_header "mode=unshare,variant=apt: create gzip compressed tarball"
cat << END > shared/test.sh
#!/bin/sh
@ -2109,7 +2076,7 @@ cat << END > shared/test.sh
set -eu
export LC_ALL=C.UTF-8
$CMD --mode=root --variant=apt \
--setup-hook=./hooks/merged-usr/setup00.sh \
--setup-hook=./hooks/setup00-merged-usr.sh \
--customize-hook='[ -L "\$1"/bin -a -L "\$1"/sbin -a -L "\$1"/lib ]' \
$DEFAULT_DIST /tmp/debian-chroot $mirror
tar -C /tmp/debian-chroot --one-file-system -c . | tar -t | sort > tar2.txt
@ -2796,6 +2763,8 @@ 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/apt/lists/lock
rm /tmp/debian-chroot/var/lib/dpkg/available
rm /tmp/debian-chroot/var/lib/dpkg/cmethopt
rm /tmp/debian-chroot/var/lib/dpkg/status
# the rest should be empty directories that we can rmdir recursively
find /tmp/debian-chroot -depth -print0 | xargs -0 rmdir
@ -2824,6 +2793,8 @@ 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/apt/lists/lock
rm /tmp/debian-chroot/var/lib/dpkg/available
rm /tmp/debian-chroot/var/lib/dpkg/cmethopt
rm /tmp/debian-chroot/var/lib/dpkg/status
# the rest should be empty directories that we can rmdir recursively
find /tmp/debian-chroot -depth -print0 | xargs -0 rmdir
@ -2853,6 +2824,8 @@ 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/apt/lists/lock
rm /tmp/debian-chroot/var/lib/dpkg/available
rm /tmp/debian-chroot/var/lib/dpkg/cmethopt
rm /tmp/debian-chroot/var/lib/dpkg/status
# the rest should be empty directories that we can rmdir recursively
find /tmp/debian-chroot -depth -print0 | xargs -0 rmdir
@ -2871,8 +2844,8 @@ cat << END > shared/test.sh
set -eu
export LC_ALL=C.UTF-8
$CMD --mode=$defaultmode --variant=essential --include=apt \
--essential-hook='APT_CONFIG=\$MMDEBSTRAP_APT_CONFIG apt-get update' \
--essential-hook='APT_CONFIG=\$MMDEBSTRAP_APT_CONFIG apt-get --yes install -oDPkg::Chroot-Directory="\$1" apt' \
--essential-hook='apt-get -o Dir="\$1" -oDir::Etc::TrustedParts=/etc/apt/trusted.gpg.d -oAcquire::Languages=none update' \
--essential-hook='apt-get --yes install --no-install-recommends -o Dir="\$1" -oDPkg::Chroot-Directory="\$1" apt' \
$DEFAULT_DIST /tmp/debian-chroot.tar $mirror
tar -tf /tmp/debian-chroot.tar | sort | grep -v ./var/lib/apt/extended_states | diff -u tar1.txt -
rm /tmp/debian-chroot.tar
@ -2998,6 +2971,8 @@ rm /tmp/debian-chroot/etc/fstab
rm /tmp/debian-chroot/etc/hostname
rm /tmp/debian-chroot/etc/resolv.conf
rm /tmp/debian-chroot/var/lib/apt/lists/lock
rm /tmp/debian-chroot/var/lib/dpkg/available
rm /tmp/debian-chroot/var/lib/dpkg/cmethopt
rm /tmp/debian-chroot/var/lib/dpkg/status
# the rest should be empty directories that we can rmdir recursively
find /tmp/debian-chroot -depth -print0 | xargs -0 rmdir
@ -3241,6 +3216,10 @@ rm /tmp/debian-chroot/var/lib/dpkg/status
rm /tmp/debian-chroot/var/cache/apt/archives/lock
rm /tmp/debian-chroot/var/lib/dpkg/lock
rm /tmp/debian-chroot/var/lib/dpkg/lock-frontend
if [ "$mode" != "chrootless" ] || dpkg --compare-versions "\$(dpkg --robot --version)" lt 1.20.0; then
rm /tmp/debian-chroot/var/lib/dpkg/available
rm /tmp/debian-chroot/var/lib/dpkg/cmethopt
fi
rm /tmp/debian-chroot/var/lib/apt/lists/lock
## delete merged usr symlinks
#rm /tmp/debian-chroot/libx32
@ -3306,6 +3285,10 @@ 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
rm /tmp/debian-chroot/var/lib/apt/lists/lock
if [ "$mode" != "chrootless" ] || dpkg --compare-versions "\$(dpkg --robot --version)" lt 1.20.0; then
rm /tmp/debian-chroot/var/lib/dpkg/available
rm /tmp/debian-chroot/var/lib/dpkg/cmethopt
fi
## delete merged usr symlinks
#rm /tmp/debian-chroot/libx32
#rm /tmp/debian-chroot/lib64
@ -3452,6 +3435,10 @@ 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
rm /tmp/debian-chroot/var/lib/apt/lists/lock
if dpkg --compare-versions "\$(dpkg --robot --version)" lt 1.20.0; then
rm /tmp/debian-chroot/var/lib/dpkg/available
rm /tmp/debian-chroot/var/lib/dpkg/cmethopt
fi
## delete merged usr symlinks
#rm /tmp/debian-chroot/libx32
#rm /tmp/debian-chroot/lib64
@ -3510,6 +3497,10 @@ 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
rm /tmp/debian-chroot/var/lib/apt/lists/lock
if dpkg --compare-versions "\$(dpkg --robot --version)" lt 1.20.0; then
rm /tmp/debian-chroot/var/lib/dpkg/available
rm /tmp/debian-chroot/var/lib/dpkg/cmethopt
fi
## delete merged usr symlinks
#rm /tmp/debian-chroot/libx32
#rm /tmp/debian-chroot/lib64

View file

@ -4,7 +4,4 @@ set -exu
rootdir="$1"
# Run busybox using an absolute path so that this script also works in case
# /proc is not mounted. Busybox uses /proc/self/exe to figure out the path
# to its executable.
chroot "$rootdir" /bin/busybox --install -s
chroot "$rootdir" busybox --install -s

View file

@ -90,12 +90,6 @@ def main():
chroot = Path(os.environ["FAKECHROOT_BASE_ORIG"])
# if chrootless mode is used from within a fakechroot chroot, then
# FAKECHROOT_BASE_ORIG will point at the outer chroot. We want to use
# the path from DPKG_ROOT inside of that instead
if os.environ.get("DPKG_ROOT", "") not in ["", "/"]:
chroot /= os.environ["DPKG_ROOT"].lstrip("/")
if not (chroot / "sbin" / "ldconfig").exists():
sys.exit(0)

View file

@ -97,7 +97,7 @@ get_oldaptnames() {
if [ ! -e "$1/$2" ]; then
return
fi
xz -dc "$1/$2" \
gzip -dc "$1/$2" \
| grep-dctrl --no-field-names --show-field=Package,Version,Architecture,Filename '' \
| paste -sd " \n" \
| while read name ver arch fname; do
@ -122,10 +122,10 @@ get_newaptnames() {
return
fi
# skip empty files by trying to uncompress the first byte of the payload
if [ "$(xz -dc "$1/$2" | head -c1 | wc -c)" -eq 0 ]; then
if [ "$(gzip -dc "$1/$2" | head -c1 | wc -c)" -eq 0 ]; then
return
fi
xz -dc "$1/$2" \
gzip -dc "$1/$2" \
| grep-dctrl --no-field-names --show-field=Package,Version,Architecture,Filename,SHA256 '' \
| paste -sd " \n" \
| while read name ver arch fname hash; do
@ -235,17 +235,17 @@ END
# /var/cache/apt/archives so that apt will not re-download *.deb
# packages that we already have
{
get_oldaptnames "$oldmirrordir" "dists/$dist/main/binary-$nativearch/Packages.xz"
get_oldaptnames "$oldmirrordir" "dists/$dist/main/binary-$nativearch/Packages.gz"
case "$dist" in oldstable|stable)
get_oldaptnames "$oldmirrordir" "dists/$dist-updates/main/binary-$nativearch/Packages.xz"
get_oldaptnames "$oldmirrordir" "dists/$dist-updates/main/binary-$nativearch/Packages.gz"
;;
esac
case "$dist" in
oldstable)
get_oldaptnames "$oldcachedir/debian-security" "dists/$dist/updates/main/binary-$nativearch/Packages.xz"
get_oldaptnames "$oldcachedir/debian-security" "dists/$dist/updates/main/binary-$nativearch/Packages.gz"
;;
stable)
get_oldaptnames "$oldcachedir/debian-security" "dists/$dist-security/main/binary-$nativearch/Packages.xz"
get_oldaptnames "$oldcachedir/debian-security" "dists/$dist-security/main/binary-$nativearch/Packages.gz"
;;
esac
} | sort -u > "$rootdir/oldaptnames"
@ -266,12 +266,12 @@ END
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-$nativearch/Packages.xz"
curl --location "$mirror/dists/$dist/main/binary-$nativearch/Packages.gz" > "$newmirrordir/dists/$dist/main/binary-$nativearch/Packages.gz"
case "$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-$nativearch/Packages.xz"
curl --location "$mirror/dists/$dist-updates/main/binary-$nativearch/Packages.gz" > "$newmirrordir/dists/$dist-updates/main/binary-$nativearch/Packages.gz"
;;
esac
case "$dist" in
@ -279,13 +279,13 @@ END
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-$nativearch/Packages.xz"
curl --location "$security_mirror/dists/$dist/updates/main/binary-$nativearch/Packages.gz" > "$newcachedir/debian-security/dists/$dist/updates/main/binary-$nativearch/Packages.gz"
;;
stable)
mkdir -p "$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"
curl --location "$security_mirror/dists/$dist-security/main/binary-$nativearch/Packages.gz" > "$newcachedir/debian-security/dists/$dist-security/main/binary-$nativearch/Packages.gz"
;;
esac
@ -298,17 +298,17 @@ END
# 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-$nativearch/Packages.xz";
get_newaptnames "$newmirrordir" "dists/$dist/main/binary-$nativearch/Packages.gz";
case "$dist" in oldstable|stable)
get_newaptnames "$newmirrordir" "dists/$dist-updates/main/binary-$nativearch/Packages.xz"
get_newaptnames "$newmirrordir" "dists/$dist-updates/main/binary-$nativearch/Packages.gz"
;;
esac
case "$dist" in
oldstable)
get_newaptnames "$newcachedir/debian-security" "dists/$dist/updates/main/binary-$nativearch/Packages.xz"
get_newaptnames "$newcachedir/debian-security" "dists/$dist/updates/main/binary-$nativearch/Packages.gz"
;;
stable)
get_newaptnames "$newcachedir/debian-security" "dists/$dist-security/main/binary-$nativearch/Packages.xz"
get_newaptnames "$newcachedir/debian-security" "dists/$dist-security/main/binary-$nativearch/Packages.gz"
;;
esac
} | sort -u > "$rootdir/newaptnames"

View file

@ -23,13 +23,13 @@
use strict;
use warnings;
our $VERSION = '0.8.1';
our $VERSION = '0.8.0';
use English;
use Getopt::Long;
use Pod::Usage;
use File::Copy;
use File::Path qw(make_path);
use File::Path qw(make_path remove_tree);
use File::Temp qw(tempfile tempdir);
use File::Basename;
use File::Find;
@ -244,9 +244,9 @@ sub get_tar_compressor {
} elsif ($filename =~ /\.lz4$/) {
return ['lz4'];
} elsif ($filename =~ /\.(xz|txz)$/) {
return ['xz'];
return ['xz', '--threads=0'];
} elsif ($filename =~ /\.zst$/) {
return ['zstd'];
return ['zstd', '--threads=0'];
}
return;
}
@ -1550,6 +1550,41 @@ sub setup {
sub run_setup() {
my $options = shift;
my $dpkgversion = version->new(0);
{
my $pid = open my $fh, '-|' // error "failed to fork(): $!";
if ($pid == 0) {
# redirect stderr to /dev/null to hide error messages from dpkg
# versions before 1.20.0
open(STDERR, '>', '/dev/null')
or error "cannot open /dev/null for writing: $!";
exec 'dpkg', '--robot', '--version';
}
chomp(
my $content = do { local $/; <$fh> }
);
close $fh;
# the --robot option was introduced in 1.20.0 but until 1.20.2 the
# output contained a string after the version, separated by a
# whitespace -- since then, it's only the version
if ($? == 0 and $content =~ /^([0-9.]+)( .*)?$/) {
# dpkg is new enough for the --robot option
$dpkgversion = version->new($1);
}
}
my $aptversion = version->new(0);
{
my $pid = open my $fh, '-|', 'apt-get',
'--version' // error "failed to fork(): $!";
chomp(my $firstline = <$fh>);
close $fh;
if ( $? == 0
and $firstline =~ /^apt ([0-9]+\.[0-9]+\.[0-9]+) \([a-z0-9-]+\)$/)
{
$aptversion = version->new($1);
}
}
{
my @directories = (
'/etc/apt/apt.conf.d', '/etc/apt/sources.list.d',
@ -1560,7 +1595,8 @@ sub run_setup() {
push @directories, '/var/lib/dpkg';
# since we do not know the dpkg version inside the chroot at this
# point, we can only omit it in chrootless mode
if ($options->{mode} ne 'chrootless'
if ( $options->{mode} ne 'chrootless'
or $dpkgversion < "1.20.0"
or scalar @{ $options->{dpkgopts} } > 0) {
push @directories, '/etc/dpkg/dpkg.cfg.d/';
}
@ -1573,7 +1609,8 @@ sub run_setup() {
push @directories, '/var/log/apt';
# since we do not know the dpkg version inside the chroot at this
# point, we can only omit it in chrootless mode
if ($options->{mode} ne 'chrootless') {
if ( $options->{mode} ne 'chrootless'
or $dpkgversion < "1.20.0") {
push @directories, '/var/lib/dpkg/triggers',
'/var/lib/dpkg/info', '/var/lib/dpkg/alternatives',
'/var/lib/dpkg/updates';
@ -1651,6 +1688,24 @@ sub run_setup() {
# options.
print $conf "pkgCacheGen::ForceEssential \",\";\n";
}
if ($options->{dryrun}
and ($aptversion < "2.1.16")) {
# Without this option, apt will fail with:
# E: Could not configure 'libc6:amd64'.
# E: Could not perform immediate configuration on 'libgcc1:amd64'.
#
# See https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=953260
#
# For some while there were other immediate configuration problems
# which were fixed by changing the dependencies in src:glibc:
# https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=972552
#
# Immediate configuration only was fixed in apt later which then also
# fixed these bugs:
# https://bugs.debian.org/973325
# https://bugs.debian.org/973305
print $conf "APT::Immediate-Configure false;\n";
}
close $conf;
# We put certain configuration items in their own configuration file
@ -1673,6 +1728,29 @@ sub run_setup() {
close $fh;
}
# /var/lib/dpkg/available is required to exist or otherwise package
# removals will fail
# since we do not know the dpkg version inside the chroot at this point, we
# can only omit it in chrootless mode
if ( $options->{mode} ne 'chrootless'
or $dpkgversion < "1.20.0") {
open my $fh, '>', "$options->{root}/var/lib/dpkg/available"
or error "failed to open(): $!";
close $fh;
}
# /var/lib/dpkg/cmethopt is used by dselect
# see #930788
# since we do not know the dpkg version inside the chroot at this point, we
# can only omit it in chrootless mode
if ( $options->{mode} ne 'chrootless'
or $dpkgversion < "1.20.0") {
open my $fh, '>', "$options->{root}/var/lib/dpkg/cmethopt"
or error "failed to open(): $!";
print $fh "apt apt\n";
close $fh;
}
# we create /var/lib/dpkg/arch inside the chroot either if there is more
# than the native architecture in the chroot or if chrootless mode is
# used to create a chroot of a different architecture than the native
@ -1961,10 +2039,27 @@ sub run_setup() {
sub run_update() {
my $options = shift;
my $aptversion = version->new(0);
{
my $pid = open my $fh, '-|', 'apt-get',
'--version' // error "failed to fork(): $!";
chomp(my $firstline = <$fh>);
close $fh;
if ( $? == 0
and $firstline =~ /^apt ([0-9]+\.[0-9]+\.[0-9]+) \([a-z0-9-]+\)$/)
{
$aptversion = version->new($1);
}
}
my $aptopts = {
ARGV => ['apt-get', 'update', '--error-on=any'],
ARGV => ['apt-get', 'update'],
CHDIR => $options->{root},
};
if ($aptversion < "2.1.16") {
$aptopts->{FIND_APT_WARNINGS} = 1;
} else {
push @{ $aptopts->{ARGV} }, '--error-on=any';
}
info "running apt-get update...";
run_apt_progress($aptopts);
@ -3007,14 +3102,15 @@ sub run_cleanup() {
# apt since 1.6 creates the auxfiles directory. If apt inside the
# chroot is older than that, then it will not know how to clean it.
if (-e "$options->{root}/var/lib/apt/lists/auxfiles") {
0 == system(
'rm',
'--interactive=never',
'--recursive',
'--preserve-root',
'--one-file-system',
"$options->{root}/var/lib/apt/lists/auxfiles"
) or error "rm failed: $?";
remove_tree("$options->{root}/var/lib/apt/lists/auxfiles",
{ error => \my $err });
if (@$err) {
for my $diag (@$err) {
my ($file, $message) = %$diag;
if ($file eq '') { warning "general error: $message"; }
else { warning "problem unlinking $file: $message"; }
}
}
}
}
@ -3084,11 +3180,15 @@ sub run_cleanup() {
next if $entry eq ".";
next if $entry eq "..";
warning "deleting files in /tmp: $entry";
0 == system(
'rm', '--interactive=never',
'--recursive', '--preserve-root',
'--one-file-system', "$options->{root}/tmp/$entry"
) or error "rm failed: $?";
remove_tree("$options->{root}/tmp/$entry",
{ error => \my $err });
if (@$err) {
for my $diag (@$err) {
my ($file, $message) = %$diag;
if ($file eq '') { warning "general error: $message"; }
else { warning "problem unlinking $file: $message"; }
}
}
}
closedir($dh);
}
@ -4464,11 +4564,8 @@ sub main() {
$ENV{PATH} = "/usr/sbin:/usr/bin:/sbin:/bin";
}
foreach my $tool (
'dpkg', 'dpkg-deb', 'apt-get', 'apt-cache',
'apt-config', 'tar', 'rm', 'find',
'env'
) {
foreach my $tool ('dpkg', 'dpkg-deb', 'apt-get', 'apt-cache', 'apt-config',
'tar') {
my $found = 0;
foreach my $path (split /:/, $ENV{PATH}) {
if (-f "$path/$tool" && -x _ ) {
@ -4481,49 +4578,6 @@ sub main() {
}
}
{
my $dpkgversion = version->new(0);
my $pid = open my $fh, '-|' // error "failed to fork(): $!";
if ($pid == 0) {
# redirect stderr to /dev/null to hide error messages from dpkg
# versions before 1.20.0
open(STDERR, '>', '/dev/null')
or error "cannot open /dev/null for writing: $!";
exec 'dpkg', '--robot', '--version';
}
chomp(
my $content = do { local $/; <$fh> }
);
close $fh;
# the --robot option was introduced in 1.20.0 but until 1.20.2 the
# output contained a string after the version, separated by a
# whitespace -- since then, it's only the version
if ($? == 0 and $content =~ /^([0-9.]+)( .*)?$/) {
# dpkg is new enough for the --robot option
$dpkgversion = version->new($1);
}
if ($dpkgversion < "1.20.0") {
error "need dpkg >= 1.20.0 but have $dpkgversion";
}
}
{
my $aptversion = version->new(0);
my $pid = open my $fh, '-|', 'apt-get',
'--version' // error "failed to fork(): $!";
chomp(
my $content = do { local $/; <$fh> }
);
close $fh;
if ( $? == 0
and $content =~ /^apt ([0-9]+\.[0-9]+\.[0-9]+) \([a-z0-9-]+\)$/m) {
$aptversion = version->new($1);
}
if ($aptversion < "2.3.7") {
error "need apt >= 2.3.7 but have $aptversion";
}
}
my $check_fakechroot_running = sub {
# test if we are inside fakechroot already
# We fork a child process because setting FAKECHROOT_DETECT seems to
@ -5896,18 +5950,31 @@ sub main() {
# no risk of removing anything important.
$pid = get_unshare_cmd(
sub {
# change CWD to chroot directory because find tries to
# chdir to the current directory which might not be
# accessible by the unshared user:
# find: Failed to restore initial working directory
0 == system('env', "--chdir=$options->{root}", 'find',
$options->{root}, '-mount',
'-mindepth', '1', '-delete')
or error "rm failed: $?";
# ignore failure in case the unshared user doesn't have the
# required permissions -- we attempt again later if
# necessary
rmdir "$options->{root}";
# File::Path will produce the error "cannot stat initial
# working directory" if the working directory cannot be
# accessed by the unprivileged unshared user. Thus, we
# first navigate to the parent of the root directory.
chdir "$options->{root}/.."
or error "unable to chdir() to parent directory of"
. " $options->{root}: $!";
remove_tree($options->{root}, { error => \my $err });
if (@$err) {
for my $diag (@$err) {
my ($file, $message) = %$diag;
if ($file eq '') {
warning "general error: $message";
} else {
# the unshared process might not have
# sufficient permissions to remove the root
# directory. We attempt its removal later, so
# don't warn if its removal fails now.
if ($file ne $options->{root}) {
warning
"problem unlinking $file: $message";
}
}
}
}
},
\@idmap
);
@ -5915,7 +5982,8 @@ sub main() {
$? == 0 or error "remove_tree failed";
# in unshare mode, the toplevel directory might've been created in
# a directory that the unshared user cannot change and thus cannot
# delete. We attempt its removal again outside as the normal user.
# delete. If the root directory still exists after remove_tree
# above, we attempt its removal again outside as the normal user.
if (-e $options->{root}) {
rmdir "$options->{root}"
or error "cannot rmdir $options->{root}: $!";
@ -5933,7 +6001,7 @@ sub main() {
# be removed.
0 == system('rm', '--interactive=never', '--recursive',
'--preserve-root', '--one-file-system', $options->{root})
or error "rm failed: $?";
or error "rm failed: $!";
} else {
error "unknown mode: $options->{mode}";
}
@ -7065,9 +7133,9 @@ extension to compressor applies:
.tlz lzma
.lzo lzop
.lz4 lz4
.xz xz
.txz xz
.zst zstd
.xz xz --threads=0
.txz xz --threads=0
.zst zstd --threads=0
To change compression specific options, either use the respecitve environment
variables like B<XZ_OPT> or send B<mmdebstrap> output to your compressor of