#!/usr/bin/perl -w # changelog-file -- maemian 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. use strict; use lib "$ENV{'MAEMIAN_ROOT'}/lib"; use Util; ($#ARGV == 1) or fail("syntax: changelog-file "); my $pkg = shift; my $type = shift; -f "fields/package" or fail("changelog-file invoked in wrong directory"); unlink("changelog"); # Pick the first of these files that exists. my @changelogs = ("unpacked/usr/share/doc/$pkg/changelog.Debian.gz", "unpacked/usr/share/doc/$pkg/changelog.Debian", "unpacked/usr/share/doc/$pkg/changelog.debian.gz", "unpacked/usr/share/doc/$pkg/changelog.debian", "unpacked/usr/share/doc/$pkg/changelog.gz", "unpacked/usr/share/doc/$pkg/changelog", "unpacked/usr/doc/$pkg/changelog.Debian.gz", "unpacked/usr/doc/$pkg/changelog.Debian", "unpacked/usr/doc/$pkg/changelog.debian.gz", "unpacked/usr/doc/$pkg/changelog.debian", "unpacked/usr/doc/$pkg/changelog.gz", "unpacked/usr/doc/$pkg/changelog"); my $chl; for (@changelogs) { if (-l $_ || -f $_) { $chl = $_; last; } } # If the changelog file we found was a symlink, we have to be careful. It # could be a symlink to some file outside of the laboratory and we don't want # to end up reading that file by mistake. Relative links within the same # directory or to a subdirectory we accept; anything else is replaced by an # intentinally broken symlink so that checks can do the right thing. if (defined ($chl) && -l $chl) { my $link = readlink $chl or fail("cannot readlink $chl: $!"); if ($link =~ /\.\./ || ($link =~ m%/% && $link !~ m%^[^/]+(/+[^/]+)*\z%)) { symlink('file-is-in-another-package', 'changelog') or fail("cannot create changelog symlink: $!"); 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, 'changelog'); } elsif (-f $chl && -l $chl) { local $_; open (CHL, '<', $chl) or fail("cannot open $chl: $!"); open (COPY, '>', 'changelog') or fail("cannot create changelog: $!"); print COPY while ; close CHL; close COPY; } else { link($chl, "changelog") or fail("cannot link $chl to changelog: $!"); } # Extract NEWS.Debian files as well, with similar precautious. Ignore any # symlinks to other packages here; in that case, we just won't check the file. unlink('NEWS.Debian'); my $news = "unpacked/usr/share/doc/$pkg/NEWS.Debian.gz"; if (-f $news) { if (-l $news) { my $link = readlink $news or fail("cannot readlink $chl: $!"); if ($link =~ /\.\./ || ($link =~ m%/% && $link !~ m%^[^/]+(/+[^/]+)*\z%)) { undef $news; } elsif (! -f $news) { undef $news; } } if ($news) { gunzip_file($news, "NEWS.Debian"); } }