forked from josch/mmdebstrap
add hooks/copy-host-apt-sources-and-preferences
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2 changed files with 87 additions and 0 deletions
44
hooks/copy-host-apt-sources-and-preferences/customize00.pl
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44
hooks/copy-host-apt-sources-and-preferences/customize00.pl
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#!/usr/bin/perl
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#
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# This script makes sure that all packages that are installed both locally as
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# well as inside the chroot have the same version.
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#
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# It is implemented in Perl because there are no associative arrays in POSIX
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# shell.
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use strict;
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use warnings;
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sub get_pkgs {
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my $root = shift;
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my %pkgs = ();
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open(my $fh, '-|', 'dpkg-query', "--root=$root", '--showformat',
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'${binary:Package}=${Version}\n', '--show')
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// die "cannot exec dpkg-query";
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while (my $line = <$fh>) {
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my ($pkg, $ver) = split(/=/, $line, 2);
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$pkgs{$pkg} = $ver;
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}
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close $fh;
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if ($? != 0) { die "failed to run dpkg-query" }
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return %pkgs;
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}
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my %pkgs_local = get_pkgs('/');
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my %pkgs_chroot = get_pkgs($ARGV[0]);
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my @diff = ();
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foreach my $pkg (keys %pkgs_chroot) {
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next unless exists $pkgs_local{$pkg};
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if ($pkgs_local{$pkg} ne $pkgs_chroot{$pkg}) {
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push @diff, $pkg;
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}
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}
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if (scalar @diff > 0) {
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print STDERR "E: packages from the host and the chroot differ:\n";
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foreach my $pkg (@diff) {
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print STDERR "E: $pkg $pkgs_local{$pkg} $pkgs_chroot{$pkg}\n";
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}
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exit 1;
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}
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43
hooks/copy-host-apt-sources-and-preferences/setup00.sh
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hooks/copy-host-apt-sources-and-preferences/setup00.sh
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#!/bin/sh
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set -eu
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if [ "${MMDEBSTRAP_VERBOSITY:-1}" -ge 3 ]; then
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set -x
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fi
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if [ -n "${MMDEBSTRAP_SUITE:-}" ]; then
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if [ "${MMDEBSTRAP_VERBOSITY:-1}" -ge 1 ]; then
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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
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fi
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fi
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rootdir="$1"
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SOURCELIST="/etc/apt/sources.list"
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eval "$(apt-config shell SOURCELIST Dir::Etc::SourceList/f)"
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SOURCEPARTS="/etc/apt/sources.d/"
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eval "$(apt-config shell SOURCEPARTS Dir::Etc::SourceParts/d)"
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PREFERENCES="/etc/apt/preferences"
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eval "$(apt-config shell PREFERENCES Dir::Etc::Preferences/f)"
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PREFERENCESPARTS="/etc/apt/preferences.d/"
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eval "$(apt-config shell PREFERENCESPARTS Dir::Etc::PreferencesParts/d)"
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for f in "$SOURCELIST" \
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"$SOURCEPARTS"/*.list \
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"$SOURCEPARTS"/*.sources \
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"$PREFERENCES" \
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"$PREFERENCESPARTS"/*; do
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[ -e "$f" ] || continue
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if [ -e "$rootdir/$f" ]; then
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if [ "${MMDEBSTRAP_VERBOSITY:-1}" -ge 2 ]; then
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echo "I: $f already exists in chroot, appending..." >&2
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fi
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echo >> "$rootdir/$f"
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fi
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cat "$f" >> "$rootdir/$f"
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if [ "${MMDEBSTRAP_VERBOSITY:-1}" -ge 3 ]; then
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echo "D: contents of $f inside the chroot:" >&2
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cat "$rootdir/$f" >&2
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fi
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done
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