mmdebstrap/coverage.sh

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#!/bin/sh
set -eu
mkdir -p cover_db
if mountpoint -q -- cover_db; then
sudo umount cover_db
fi
# here is something crazy:
# as we run mmdebstrap, the process ends up being run by different users with
# different privileges (real or fake). But for being able to collect
# Devel::Cover data, they must all share a single directory. The only way that
# I found to make this work is to mount the database directory with a
# 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
fallocate -l 10M cover_db.img
sudo mkfs.vfat cover_db.img
sudo mount -o loop,umask=000 cover_db.img cover_db
nativearch=$(dpkg --print-architecture)
./make_mirror.sh
cd mirror
python3 -m http.server 8000 2>/dev/null & pid=$!
cd -
# wait for the server to start
sleep 1
if ! kill -0 $pid; then
echo "failed to start http server"
exit 1
fi
echo "running http server with pid $pid"
# choose the timestamp of the unstable Release file, so that we get
# reproducible results for the same mirror timestamp
export SOURCE_DATE_EPOCH=$(date --date="$(grep-dctrl -s Date -n '' mirror/dists/unstable/Release)" +%s)
CMD="perl -MDevel::Cover=-silent,-nogcov ./mmdebstrap"
# create directory in sudo mode
sudo $CMD --mode=root --variant=apt unstable ./debian-unstable "http://localhost:8000"
sudo tar -C ./debian-unstable --one-file-system -c . | tar -t | sort > tar1.txt
sudo rm -r --one-file-system ./debian-unstable
# create a tarball
$CMD --mode=unshare --variant=apt unstable unstable-chroot.tar "http://localhost:8000"
tar -tf unstable-chroot.tar | sort > tar2.txt
diff -u tar1.txt tar2.txt
rm unstable-chroot.tar
# read sources.list from standard input and write to standard output
echo "deb http://localhost:8000 unstable main" | $CMD --variant=apt > unstable-chroot.tar
tar -tf unstable-chroot.tar | sort > tar2.txt
diff -u tar1.txt tar2.txt
rm unstable-chroot.tar
# test aptopt
sudo $CMD --mode=root --variant=apt --aptopt="Acquire::Check-Valid-Until false" unstable ./debian-unstable "http://localhost:8000"
echo "Acquire::Check-Valid-Until false;" | cmp ./debian-unstable/etc/apt/apt.conf.d/99mmdebstrap -
sudo rm ./debian-unstable/etc/apt/apt.conf.d/99mmdebstrap
sudo tar -C ./debian-unstable --one-file-system -c . | tar -t | sort > tar2.txt
diff -u tar1.txt tar2.txt
sudo rm -r --one-file-system ./debian-unstable
# test dpkgopt
sudo $CMD --mode=root --variant=apt --dpkgopt="path-exclude=/usr/share/doc/*" unstable ./debian-unstable "http://localhost:8000"
echo "path-exclude=/usr/share/doc/*" | cmp ./debian-unstable/etc/dpkg/dpkg.cfg.d/99mmdebstrap -
sudo rm ./debian-unstable/etc/dpkg/dpkg.cfg.d/99mmdebstrap
sudo tar -C ./debian-unstable --one-file-system -c . | tar -t | sort > tar2.txt
grep -v '^./usr/share/doc/.' tar1.txt | diff -u - tar2.txt
sudo rm -r --one-file-system ./debian-unstable
# test --include
sudo $CMD --mode=root --variant=apt --include=doc-debian unstable ./debian-unstable "http://localhost:8000"
sudo rm ./debian-unstable/usr/share/doc-base/debian-*
sudo rm -r ./debian-unstable/usr/share/doc/debian
sudo rm -r ./debian-unstable/usr/share/doc/doc-debian
sudo rm ./debian-unstable/var/log/apt/eipp.log.xz
sudo rm ./debian-unstable/var/lib/dpkg/info/doc-debian.list
sudo rm ./debian-unstable/var/lib/dpkg/info/doc-debian.md5sums
sudo tar -C ./debian-unstable --one-file-system -c . | tar -t | sort > tar2.txt
diff -u tar1.txt tar2.txt
sudo rm -r --one-file-system ./debian-unstable
# test all variants
for variant in essential apt required minbase buildd important debootstrap - standard; do
sudo $CMD --mode=root --variant=$variant unstable ./debian-unstable "http://localhost:8000"
sudo tar -C ./debian-unstable --one-file-system -c . | tar -t | sort > "$variant.txt"
sudo rm -r --one-file-system ./debian-unstable
# check if the other modes produce the same result in each variant
for mode in unshare fakechroot proot; do
# fontconfig doesn't install reproducibly because differences
# in /var/cache/fontconfig/. See
# https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=864082
if [ "$variant" = standard ]; then
continue
fi
# FIXME: cannot test fakechroot or proot in any other variant
# than essential because of
# https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=909637
case "$mode" in
fakechroot|proot)
if [ "$variant" != "essential" ]; then
continue
fi
;;
esac
$CMD --mode=$mode --variant=$variant unstable unstable-chroot.tar "http://localhost:8000"
# in fakechroot mode, we use a fake ldconfig, so we have to
# artificially add some files
{ tar -tf unstable-chroot.tar;
[ "$mode" = "fakechroot" ] && printf "./etc/ld.so.cache\n./var/cache/ldconfig/\n";
} | sort | diff -u "./$variant.txt" -
rm unstable-chroot.tar
# Devel::Cover doesn't survive mmdebstrap re-exec-ing itself
# with fakechroot, thus, we do an additional run where we
# explicitly run mmdebstrap with fakechroot from the start
if [ "$mode" = "fakechroot" ]; then
fakechroot fakeroot $CMD --mode=$mode --variant=$variant unstable unstable-chroot.tar "http://localhost:8000"
{ tar -tf unstable-chroot.tar;
printf "./etc/ld.so.cache\n./var/cache/ldconfig/\n";
} | sort | diff -u "./$variant.txt" -
rm unstable-chroot.tar
fi
done
# some variants are equal and some are strict superset of the last
# special case of the buildd variant: nothing is a superset of it
case "$variant" in
essential) ;; # nothing to compare it to
apt)
[ $(comm -23 essential.txt apt.txt | wc -l) -eq 0 ]
[ $(comm -13 essential.txt apt.txt | wc -l) -gt 0 ]
rm essential.txt
;;
required)
[ $(comm -23 apt.txt required.txt | wc -l) -eq 0 ]
[ $(comm -13 apt.txt required.txt | wc -l) -gt 0 ]
rm apt.txt
;;
minbase) # equal to required
cmp required.txt minbase.txt
rm required.txt
;;
buildd)
[ $(comm -23 minbase.txt buildd.txt | wc -l) -eq 0 ]
[ $(comm -13 minbase.txt buildd.txt | wc -l) -gt 0 ]
rm buildd.txt # we need minbase.txt but not buildd.txt
;;
important)
[ $(comm -23 minbase.txt important.txt | wc -l) -eq 0 ]
[ $(comm -13 minbase.txt important.txt | wc -l) -gt 0 ]
rm minbase.txt
;;
debootstrap) # equal to important
cmp important.txt debootstrap.txt
rm important.txt
;;
-) # equal to debootstrap
cmp debootstrap.txt ./-.txt
rm debootstrap.txt
;;
standard)
[ $(comm -23 ./-.txt standard.txt | wc -l) -eq 0 ]
[ $(comm -13 ./-.txt standard.txt | wc -l) -gt 0 ]
rm ./-.txt standard.txt
;;
*) exit 1;;
esac
done
# test extract variant also with chrootless mode
for mode in root unshare fakechroot proot chrootless; do
prefix=
if [ "$mode" = "root" ]; then
prefix=sudo
fi
$prefix $CMD --mode=$mode --variant=extract --include=doc-debian unstable ./debian-unstable "http://localhost:8000"
# delete contents of doc-debian
sudo rm ./debian-unstable/usr/share/doc-base/debian-*
sudo rm -r ./debian-unstable/usr/share/doc/debian
sudo rm -r ./debian-unstable/usr/share/doc/doc-debian
# delete real files
sudo rm ./debian-unstable/etc/apt/sources.list
sudo rm ./debian-unstable/etc/fstab
sudo rm ./debian-unstable/etc/hostname
sudo rm ./debian-unstable/etc/resolv.conf
sudo rm ./debian-unstable/var/lib/dpkg/status
# delete symlinks
sudo rm ./debian-unstable/libx32
sudo rm ./debian-unstable/lib64
sudo rm ./debian-unstable/lib32
sudo rm ./debian-unstable/sbin
sudo rm ./debian-unstable/bin
sudo rm ./debian-unstable/lib
# delete ./dev (files might exist or not depending on the mode)
sudo rm -f ./debian-unstable/dev/console
sudo rm -f ./debian-unstable/dev/fd
sudo rm -f ./debian-unstable/dev/full
sudo rm -f ./debian-unstable/dev/null
sudo rm -f ./debian-unstable/dev/ptmx
sudo rm -f ./debian-unstable/dev/random
sudo rm -f ./debian-unstable/dev/stderr
sudo rm -f ./debian-unstable/dev/stdin
sudo rm -f ./debian-unstable/dev/stdout
sudo rm -f ./debian-unstable/dev/tty
sudo rm -f ./debian-unstable/dev/urandom
sudo rm -f ./debian-unstable/dev/zero
# in chrootless mode, there is more to remove
if [ "$mode" = "chrootless" ]; then
sudo rm ./debian-unstable/var/log/apt/eipp.log.xz
sudo rm ./debian-unstable/var/lib/dpkg/triggers/Lock
sudo rm ./debian-unstable/var/lib/dpkg/triggers/Unincorp
sudo rm ./debian-unstable/var/lib/dpkg/status-old
sudo rm ./debian-unstable/var/lib/dpkg/info/format
sudo rm ./debian-unstable/var/lib/dpkg/info/doc-debian.md5sums
sudo rm ./debian-unstable/var/lib/dpkg/info/doc-debian.list
fi
# the rest should be empty directories that we can rmdir recursively
sudo find ./debian-unstable -depth -print0 | xargs -0 sudo rmdir
done
# the custom variant only works with chrootless mode
$CMD --mode=chrootless --variant=custom --include=doc-debian unstable ./debian-unstable "http://localhost:8000"
# delete contents of doc-debian
sudo rm ./debian-unstable/usr/share/doc-base/debian-*
sudo rm -r ./debian-unstable/usr/share/doc/debian
sudo rm -r ./debian-unstable/usr/share/doc/doc-debian
# delete real files
sudo rm ./debian-unstable/etc/apt/sources.list
sudo rm ./debian-unstable/etc/fstab
sudo rm ./debian-unstable/etc/hostname
sudo rm ./debian-unstable/etc/resolv.conf
sudo rm ./debian-unstable/var/lib/dpkg/status
# delete symlinks
sudo rm ./debian-unstable/libx32
sudo rm ./debian-unstable/lib64
sudo rm ./debian-unstable/lib32
sudo rm ./debian-unstable/sbin
sudo rm ./debian-unstable/bin
sudo rm ./debian-unstable/lib
# in chrootless mode, there is more to remove
sudo rm ./debian-unstable/var/log/apt/eipp.log.xz
sudo rm ./debian-unstable/var/lib/dpkg/triggers/Lock
sudo rm ./debian-unstable/var/lib/dpkg/triggers/Unincorp
sudo rm ./debian-unstable/var/lib/dpkg/status-old
sudo rm ./debian-unstable/var/lib/dpkg/info/format
sudo rm ./debian-unstable/var/lib/dpkg/info/doc-debian.md5sums
sudo rm ./debian-unstable/var/lib/dpkg/info/doc-debian.list
# the rest should be empty directories that we can rmdir recursively
sudo find ./debian-unstable -depth -print0 | xargs -0 sudo rmdir
# test foreign architecture with all modes
# create directory in sudo mode
# FIXME: once fakechroot and proot are fixed, we have to test more variants
# than just essential
sudo $CMD --mode=root --variant=essential unstable ./debian-unstable "http://localhost:8000"
sudo tar -C ./debian-unstable --one-file-system -c . | tar -t | sort > tar1.txt
sudo rm -r --one-file-system ./debian-unstable
# FIXME: once fakechroot and proot are fixed, we can switch to variant=apt
# FIXME: cannot test fakechroot or proot because of
# https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=909637
for mode in root unshare fakechroot proot; do
prefix=
if [ "$mode" = "root" ]; then
prefix=sudo
elif [ "$mode" = "fakechroot" ]; then
# Devel::Cover doesn't survive mmdebstrap re-exec-ing itself
# with fakechroot, thus, we explicitly run mmdebstrap with
# fakechroot from the start
prefix="fakechroot fakeroot"
fi
$prefix $CMD --mode=$mode --variant=essential --architectures=armhf unstable ./debian-unstable.tar "http://localhost:8000"
# we ignore differences between architectures by ignoring some files
# and renaming others
# in fakechroot mode, we use a fake ldconfig, so we have to
# artificially add some files
# in proot mode, some extra files are put there by proot
{ tar -tf ./debian-unstable.tar \
| grep -v '^./usr/lib/ld-linux-armhf.so.3$' \
| grep -v '^./usr/lib/arm-linux-gnueabihf/ld-linux.so.3$' \
| grep -v '^./usr/lib/arm-linux-gnueabihf/ld-linux-armhf.so.3$' \
| sed 's/arm-linux-gnueabihf/x86_64-linux-gnu/' \
| sed 's/armhf/amd64/';
[ "$mode" = "fakechroot" ] && printf "./etc/ld.so.cache\n./var/cache/ldconfig/\n";
} | sort > tar2.txt
{ cat tar1.txt \
| grep -v '^./usr/bin/i386$' \
| grep -v '^./usr/bin/x86_64$' \
| grep -v '^./usr/lib64/ld-linux-x86-64.so.2$' \
| grep -v '^./usr/lib/x86_64-linux-gnu/ld-linux-x86-64.so.2$' \
| grep -v '^./usr/lib/x86_64-linux-gnu/libmvec-2.27.so$' \
| grep -v '^./usr/lib/x86_64-linux-gnu/libmvec.so.1$' \
| 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./host-rootfs/\n";
} | sort | diff -u - tar2.txt
sudo rm ./debian-unstable.tar
done
# test if auto mode picks the right mode
kill $pid
wait $pid || true
cover -nogcov -report html_basic
mkdir -p report
for f in common.js coverage.html cover.css css.js mmdebstrap--branch.html mmdebstrap--condition.html mmdebstrap.html mmdebstrap--subroutine.html standardista-table-sorting.js; do
cp -a cover_db/$f report
done
sudo umount cover_db
sudo rmdir cover_db
#rm tar1.txt tar2.txt