josch/mmdebstrap
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allow empty sources.list entries

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This commit is contained in:
Johannes Schauer Marin Rodrigues 2023-01-16 15:13:39 +01:00
parent 860a9048d5
commit c738e96752
Signed by: josch
GPG key ID: F2CBA5C78FBD83E1
3 changed files with 82 additions and 50 deletions
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2
coverage.txt
View file

@ -362,3 +362,5 @@ Variants: essential apt minbase
Test: apt-patterns
Test: apt-patterns-custom
Test: empty-sources.list

36
mmdebstrap
View file

@ -2072,7 +2072,7 @@ sub run_setup() {
}
# write /etc/apt/sources.list and files in /etc/apt/sources.list.d/
{
if (scalar @{ $options->{sourceslists} } > 0) {
my $firstentry = $options->{sourceslists}->[0];
# if the first sources.list entry is of one-line type and without
# explicit filename, then write out an actual /etc/apt/sources.list
@ -2299,6 +2299,9 @@ sub run_update() {
close $fh;
if ($indextargets eq '') {
warning("apt-get indextargets output is empty");
if (scalar @{ $options->{sourceslists} } == 0) {
warning "no known apt sources.list entry";
}
for my $list (@{ $options->{sourceslists} }) {
if (defined $list->{fname}) {
info("Filename: $list->{fname}");
@ -5082,6 +5085,9 @@ sub main() {
## no critic (InputOutput::ProhibitExplicitStdin)
<STDIN>;
};
if ($content eq "") {
warning "sources.list from standard input is empty";
} else {
my $type = guess_sources_format($content);
if (!defined $type
|| ($type ne "deb822" and $type ne "one-line")) {
@ -5093,6 +5099,7 @@ sub main() {
fname => undef,
content => $content,
};
}
} else {
my @components = ();
foreach my $comp (@{ $options->{components} }) {
@ -5112,9 +5119,11 @@ sub main() {
}
}
my $compstr = join " ", @components;
# if the currently selected apt keyrings do not contain the
# necessary key material for the chosen suite, then attempt adding
# a signed-by option
# From the suite name we can maybe infer which key we need. If we
# can infer this information, then we need to check whether the
# currently running apt actually trusts this key or not. If it
# doesn't, then we need to add a signed-by line to the sources.list
# entry.
my $signedby = '';
my %suite_by_vendor = get_suite_by_vendor();
my $gpgproc = sub {
@ -5251,9 +5260,14 @@ sub main() {
## no critic (InputOutput::ProhibitExplicitStdin)
<STDIN>;
};
if ($content eq "") {
warning
"sources.list from standard input is empty";
} else {
my $type = guess_sources_format($content);
if (!defined $type
|| ($type ne 'deb822' and $type ne 'one-line')) {
|| ($type ne 'deb822' and $type ne 'one-line'))
{
error "cannot determine sources.list format";
}
# if last entry is of same type and without filename,
@ -5272,6 +5286,7 @@ sub main() {
content => $content,
};
}
}
} elsif ($arg =~ /^deb(-src)? /) {
my $content = "$arg\n";
# if last entry is of same type and without filename,
@ -5315,6 +5330,9 @@ sub main() {
$content .= $line;
}
close $fh;
if ($content eq "") {
warning "$arg is empty";
} else {
my $type = undef;
if ($arg =~ /\.list$/) {
$type = 'one-line';
@ -5324,7 +5342,8 @@ sub main() {
$type = guess_sources_format($content);
}
if (!defined $type
|| ($type ne 'deb822' and $type ne 'one-line')) {
|| ($type ne 'deb822' and $type ne 'one-line'))
{
error "cannot determine sources.list format";
}
push @{$sourceslists},
@ -5333,6 +5352,9 @@ sub main() {
fname => basename($arg),
content => $content,
};
}
} elsif ($arg eq '') {
# empty
} else {
error "invalid mirror: $arg";
}
@ -5351,7 +5373,7 @@ sub main() {
}
}
if (scalar @{$sourceslists} == 0) {
error "empty apt sources.list";
warning "empty apt sources.list";
}
debug("sources list entries:");
for my $list (@{$sourceslists}) {

8
tests/empty-sources.list Normal file
View file

@ -0,0 +1,8 @@
#!/bin/sh
set -eu
export LC_ALL=C.UTF-8
trap "rm -f /tmp/debian-chroot.tar" EXIT INT TERM
printf '' | {{ CMD }} --mode={{ MODE }} --variant=apt \
--setup-hook='echo "deb {{ MIRROR }} {{ DIST }} main" > "$1"/etc/apt/sources.list' \
{{ DIST }} /tmp/debian-chroot.tar -
tar -tf /tmp/debian-chroot.tar | sort | diff -u tar1.txt -