Johannes Schauer Marin Rodrigues
337cc7237d
- implements the same as debootstrap in https://salsa.debian.org/installer-team/debootstrap/-/merge_requests/71 - builds a temporary usr-is-merged package and upgrades to the real one - create merged-/usr chroots for unstable and testing (which will become Debian 12 Bookworm) - add a dedicated merged-/usr section to the manual page
71 lines
3.4 KiB
Bash
71 lines
3.4 KiB
Bash
#!/bin/sh
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set -eu
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export LC_ALL=C.UTF-8
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export SOURCE_DATE_EPOCH={{ SOURCE_DATE_EPOCH }}
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if [ ! -e /mmdebstrap-testenv ]; then
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echo "this test modifies the system and should only be run inside a container" >&2
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exit 1
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fi
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sysctl -w kernel.unprivileged_userns_clone=1
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adduser --gecos user --disabled-password user
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runuser -u user -- {{ CMD }} --variant=custom --mode=unshare --setup-hook='env container=lxc debootstrap unstable "$1" {{ MIRROR }}' - /tmp/debian-mm.tar {{ MIRROR }}
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mkdir /tmp/debian-mm
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tar --xattrs --xattrs-include='*' -C /tmp/debian-mm -xf /tmp/debian-mm.tar
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mkdir /tmp/debian-debootstrap
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tar --xattrs --xattrs-include='*' -C /tmp/debian-debootstrap -xf "cache/debian-unstable--.tar"
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# diff cannot compare device nodes, so we use tar to do that for us and then
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# delete the directory
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tar -C /tmp/debian-debootstrap -cf dev1.tar ./dev
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tar -C /tmp/debian-mm -cf dev2.tar ./dev
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cmp dev1.tar dev2.tar
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rm dev1.tar dev2.tar
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rm -r /tmp/debian-debootstrap/dev /tmp/debian-mm/dev
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# remove downloaded deb packages
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rm /tmp/debian-debootstrap/var/cache/apt/archives/*.deb
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# remove aux-cache
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rm /tmp/debian-debootstrap/var/cache/ldconfig/aux-cache
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# remove logs
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rm /tmp/debian-debootstrap/var/log/dpkg.log \
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/tmp/debian-debootstrap/var/log/bootstrap.log \
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/tmp/debian-debootstrap/var/log/alternatives.log \
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/tmp/debian-mm/var/log/bootstrap.log
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# debootstrap doesn't clean apt
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rm /tmp/debian-debootstrap/var/lib/apt/lists/127.0.0.1_debian_dists_unstable_main_binary-{{ HOSTARCH }}_Packages \
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/tmp/debian-debootstrap/var/lib/apt/lists/127.0.0.1_debian_dists_unstable_Release \
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/tmp/debian-debootstrap/var/lib/apt/lists/127.0.0.1_debian_dists_unstable_Release.gpg
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rm /tmp/debian-debootstrap/etc/machine-id /tmp/debian-mm/etc/machine-id
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rm /tmp/debian-mm/var/cache/apt/archives/lock
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rm /tmp/debian-mm/var/lib/apt/lists/lock
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# check if the file content differs
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diff --no-dereference --recursive /tmp/debian-debootstrap /tmp/debian-mm
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# check permissions, ownership, symlink targets, modification times using tar
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# mtimes of directories created by mmdebstrap will differ, thus we equalize them first
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for d in etc/apt/preferences.d/ etc/apt/sources.list.d/ etc/dpkg/dpkg.cfg.d/ var/log/apt/; do
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touch --date="@{{ SOURCE_DATE_EPOCH }}" /tmp/debian-debootstrap/$d /tmp/debian-mm/$d
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done
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# debootstrap never ran apt -- fixing permissions
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for d in ./var/lib/apt/lists/partial ./var/cache/apt/archives/partial; do
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chroot /tmp/debian-debootstrap chmod 0700 $d
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chroot /tmp/debian-debootstrap chown _apt:root $d
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done
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tar -C /tmp/debian-debootstrap --numeric-owner --xattrs --xattrs-include='*' --sort=name --clamp-mtime --mtime=$(date --utc --date=@{{ SOURCE_DATE_EPOCH }} --iso-8601=seconds) -cf /tmp/root1.tar .
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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 .
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tar --full-time --verbose -tf /tmp/root1.tar > /tmp/root1.tar.list
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tar --full-time --verbose -tf /tmp/root2.tar > /tmp/root2.tar.list
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# despite SOURCE_DATE_EPOCH and --clamp-mtime, the timestamps in the tarball
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# will slightly differ from each other in the sub-second precision (last
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# decimals) so the tarballs will not be identical, so we use diff to compare
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# content and tar to compare attributes
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diff -u /tmp/root1.tar.list /tmp/root2.tar.list
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rm /tmp/root1.tar /tmp/root2.tar /tmp/root1.tar.list /tmp/root2.tar.list
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rm /tmp/debian-mm.tar
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rm -r /tmp/debian-debootstrap /tmp/debian-mm
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