#!/bin/sh set -eu export LC_ALL=C.UTF-8 export SOURCE_DATE_EPOCH={{ SOURCE_DATE_EPOCH }} echo "SOURCE_DATE_EPOCH=$SOURCE_DATE_EPOCH" # we create the apt user ourselves or otherwise its uid/gid will differ # compared to the one chosen in debootstrap because of different installation # 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='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:999:\nsystemd-network:x:998:\ncrontab:x:101:" >> "$1"/etc/group; fi' \ $(case {{ DIST }} in oldstable|stable) : ;; *) echo --hook-dir=./hooks/merged-usr ;; esac) \ {{ DIST }} /tmp/debian-{{ DIST }}-mm.tar {{ MIRROR }} mkdir /tmp/debian-{{ DIST }}-mm tar --xattrs --xattrs-include='*' -C /tmp/debian-{{ DIST }}-mm -xf /tmp/debian-{{ DIST }}-mm.tar rm /tmp/debian-{{ DIST }}-mm.tar mkdir /tmp/debian-{{ DIST }}-debootstrap tar --xattrs --xattrs-include='*' -C /tmp/debian-{{ DIST }}-debootstrap -xf "cache/debian-{{ DIST }}-{{ VARIANT }}.tar" # diff cannot compare device nodes, so we use tar to do that for us and then # delete the directory tar -C /tmp/debian-{{ DIST }}-debootstrap -cf dev1.tar ./dev tar -C /tmp/debian-{{ DIST }}-mm -cf dev2.tar ./dev ret=0 cmp dev1.tar dev2.tar >&2 || ret=$? if [ "$ret" -ne 0 ]; then if type diffoscope >/dev/null; then diffoscope dev1.tar dev2.tar exit 1 else echo "no diffoscope installed" >&2 fi if type base64 >/dev/null; then base64 dev1.tar base64 dev2.tar exit 1 else echo "no base64 installed" >&2 fi if type xxd >/dev/null; then xxd dev1.tar xxd dev2.tar exit 1 else echo "no xxd installed" >&2 fi exit 1 fi rm dev1.tar dev2.tar rm -r /tmp/debian-{{ DIST }}-debootstrap/dev /tmp/debian-{{ DIST }}-mm/dev # remove downloaded deb packages rm /tmp/debian-{{ DIST }}-debootstrap/var/cache/apt/archives/*.deb # remove aux-cache rm /tmp/debian-{{ DIST }}-debootstrap/var/cache/ldconfig/aux-cache # remove logs rm /tmp/debian-{{ DIST }}-debootstrap/var/log/dpkg.log \ /tmp/debian-{{ DIST }}-debootstrap/var/log/bootstrap.log \ /tmp/debian-{{ DIST }}-debootstrap/var/log/alternatives.log # remove *-old files rm /tmp/debian-{{ DIST }}-debootstrap/var/cache/debconf/config.dat-old \ /tmp/debian-{{ DIST }}-mm/var/cache/debconf/config.dat-old 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 # 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 > dpkg1 chroot /tmp/debian-{{ DIST }}-mm dpkg --list > dpkg2 diff -u dpkg1 dpkg2 >&2 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 >&2 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 rm /tmp/debian-{{ DIST }}-debootstrap/etc/apt/apt.conf.d/01autoremove-kernels 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 # 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 }}_Release \ /tmp/debian-{{ DIST }}-debootstrap/var/lib/apt/lists/127.0.0.1_debian_dists_{{ DIST }}_Release.gpg if [ "{{ VARIANT }}" = "-" ]; then rm /tmp/debian-{{ DIST }}-debootstrap/etc/machine-id rm /tmp/debian-{{ DIST }}-mm/etc/machine-id rm /tmp/debian-{{ DIST }}-debootstrap/var/lib/systemd/catalog/database rm /tmp/debian-{{ DIST }}-mm/var/lib/systemd/catalog/database 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: $cap" >&2 exit 1 fi cap=$(chroot /tmp/debian-{{ DIST }}-mm /sbin/getcap /bin/ping) if [ "$cap" != "$expected" ]; then echo "expected bin/ping to have capabilities $expected" >&2 echo "but mmdebstrap produced: $cap" >&2 exit 1 fi fi rm /tmp/debian-{{ DIST }}-mm/var/cache/apt/archives/lock rm /tmp/debian-{{ DIST }}-mm/var/lib/apt/extended_states rm /tmp/debian-{{ DIST }}-mm/var/lib/apt/lists/lock # the list of shells might be sorted wrongly # /var/lib/dpkg/triggers/File might be sorted wrongly for f in "/var/lib/dpkg/triggers/File" "/etc/shells"; do f1="/tmp/debian-{{ DIST }}-debootstrap/$f" f2="/tmp/debian-{{ DIST }}-mm/$f" # both chroots must have the file if [ ! -e "$f1" ] || [ ! -e "$f2" ]; then continue fi # the file must be different if cmp "$f1" "$f2" >&2; then continue fi # then sort both sort -o "$f1" "$f1" sort -o "$f2" "$f2" done # Because of unreproducible uids (#969631) we created the _apt user ourselves # and because passwd is not Essential:yes we didn't use useradd. But newer # versions of adduser and shadow will create a different /etc/shadow for f in shadow shadow-; do if grep -q '^_apt:!:' /tmp/debian-{{ DIST }}-debootstrap/etc/$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 crontab; do for password in "!" "!\\*"; do if grep -q '^'"$group"':'"$password"':' /tmp/debian-{{ DIST }}-debootstrap/etc/$f; then sed -i 's/^'"$group"':x::/'"$group"':'"$password"'::/' /tmp/debian-{{ DIST }}-mm/etc/$f fi done done done for log in faillog lastlog; do if ! cmp /tmp/debian-{{ DIST }}-debootstrap/var/log/$log /tmp/debian-{{ DIST }}-mm/var/log/$log >&2;then # if the files differ, make sure they are all zeroes cmp -n $(stat -c %s /tmp/debian-{{ DIST }}-debootstrap/var/log/$log) /tmp/debian-{{ DIST }}-debootstrap/var/log/$log /dev/zero >&2 cmp -n $(stat -c %s /tmp/debian-{{ DIST }}-mm/var/log/$log) /tmp/debian-{{ DIST }}-mm/var/log/$log /dev/zero >&2 # then delete them rm /tmp/debian-{{ DIST }}-debootstrap/var/log/$log /tmp/debian-{{ DIST }}-mm/var/log/$log fi 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 >&2; 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- >&2; 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 # 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 # check if the file content differs diff --unified --no-dereference --recursive /tmp/debian-{{ DIST }}-debootstrap /tmp/debian-{{ DIST }}-mm >&2 # check permissions, ownership, symlink targets, modification times using tar # directory mtimes will differ, thus we equalize them first 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 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 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 # # we cannot use this (yet) because it cannot cope with paths that have [ or @ in them #fmtree -c -p /tmp/debian-{{ DIST }}-debootstrap -k flags,gid,link,mode,size,time,uid | sudo fmtree -p /tmp/debian-{{ DIST }}-mm rm -r /tmp/debian-{{ DIST }}-debootstrap /tmp/debian-{{ DIST }}-mm