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#!/usr/bin/perl -w
# changelog-file -- lintian collector script
# Copyright (C) 1998 Richard Braakman
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, you can find it on the World Wide
# Web at http://www.gnu.org/copyleft/gpl.html, or write to the Free
# Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
# MA 02110-1301, USA.
package Lintian::coll::changelog_file;
no lib '.';
use strict;
use warnings;
use autodie;
use File::Copy qw(copy);
use lib "$ENV{'LINTIAN_ROOT'}/lib";
use Lintian::Util qw(internal_error gunzip_file is_ancestor_of);
sub collect {
my ($pkg, $type, $dir) = @_;
unlink("$dir/changelog")
if -e "$dir/changelog" or -l "$dir/changelog";
# Extract NEWS.Debian files as well, with similar precautions.
# Ignore any symlinks to other packages here; in that case, we
# just won't check the file.
unlink("$dir/NEWS.Debian")
if -l "$dir/NEWS.Debian"
or -e _;
# Pick the first of these files that exists.
my @changelogs = (
"$dir/unpacked/usr/share/doc/$pkg/changelog.Debian.gz",
"$dir/unpacked/usr/share/doc/$pkg/changelog.Debian",
"$dir/unpacked/usr/share/doc/$pkg/changelog.debian.gz",
"$dir/unpacked/usr/share/doc/$pkg/changelog.debian",
"$dir/unpacked/usr/share/doc/$pkg/changelog.gz",
"$dir/unpacked/usr/share/doc/$pkg/changelog",
);
my $chl;
if (-d "$dir/unpacked/usr/share/doc/$pkg"
&& !is_ancestor_of("$dir/unpacked", "$dir/unpacked/usr/share/doc/$pkg")
) {
# If the parent dir is outside this package, pretend we didn't find
# anything.
return;
}
for (@changelogs) {
if (-l $_ || -f _) {
$chl = $_;
last;
}
}
# If the changelog file we found was a symlink, we have to be
# careful. It could be a symlink to some file outside of the
# laboratory and we don't want to end up reading that file by
# mistake. Relative links within the same directory or to a
# subdirectory we accept; anything else is replaced by an
# intentionally broken symlink so that checks can do the right
# thing.
if (defined($chl) && -l $chl) {
my $link = readlink($chl);
if ($link =~ /\.\./
|| ($link =~ m%/% && $link !~ m%^[^/]+(?:/+[^/]+)*\z%)) {
symlink("$dir/file-is-in-another-package", "$dir/changelog");
undef $chl;
} elsif (!-f $chl) {
undef $chl;
}
}
# If the changelog was a broken symlink, it will be undefined and we'll now
# treat it the same as if we didn't find a changelog and do nothing. If it
# was a symlink, copy the file, since otherwise the relative symlinks are
# going to break things.
if (not defined $chl) {
# no changelog found
} elsif ($chl =~ /\.gz$/) {
gunzip_file($chl, "$dir/changelog");
} elsif (-f $chl && -l $chl) {
copy($chl, "$dir/changelog") or internal_error("cannot copy $chl: $!");
} else {
link($chl, "$dir/changelog");
}
if ($chl && $chl !~ m/changelog\.debian/i) {
# Either this is a native package OR a non-native package where the
# debian changelog is missing. checks/changelog is not too happy
# with the latter case, so check looks like a Debian changelog.
open(my $fd, '<', "$dir/changelog");
my $ok = 0;
while (my $line = <$fd>) {
next if $line =~ m/^\s*+$/o;
# look for something like
# lintian (2.5.3) UNRELEASED; urgency=low
if ($line
=~ m/^\S+\s*\([^\)]+\)\s*(?:UNRELEASED|(?:[^ \t;]+\s*)+)\;/o) {
$ok = 1;
}
last;
}
close($fd);
# Remove it if it not the Debian changelog.
unlink("$dir/changelog") unless $ok;
}
my $news = "$dir/unpacked/usr/share/doc/$pkg/NEWS.Debian.gz";
if (-f $news) {
if (-l $news) {
my $link = readlink($news);
if ($link =~ /\.\./
|| ($link =~ m%/% && $link !~ m%^[^/]+(?:/+[^/]+)*\z%)) {
undef $news;
}
}
if ($news) {
gunzip_file($news, "$dir/NEWS.Debian");
}
}
return;
}
collect(@ARGV) if $0 =~ m,(?:^|/)changelog-file$,;
1;
# Local Variables:
# indent-tabs-mode: nil
# cperl-indent-level: 4
# End:
# vim: syntax=perl sw=4 sts=4 sr et
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