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- #!/usr/bin/perl
-
- eval 'exec /usr/bin/perl -S $0 ${1+"$@"}'
- if 0; # not running under some shell
- # -*- perl -*-
- # Copyright 2005 Frank Lichtenheld <frank@lichtenheld.de>
- #
- # 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, write to the Free Software
- # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- #
-
- =head1 NAME
-
- parsechangelog - parse Debian changelogs and output them in other formats
-
- =head1 SYNOPSIS
-
- parsechangelog [options] [changelogfile]
-
- Options:
- --help, -h print usage information
- --version, -V print version information
- --file, -l <file> changelog file to parse, defaults
- to 'debian/changelog'
- -F<changelogformat> ignored if changelogformat = 'debian'
- for compatibility with dpkg-dev
- -L<libdir> ignored for compatibility with dpkg-dev
- --format <outputformat> see man page for list of available
- output formats, defaults to 'dpkg'
- for compatibility with dpkg-dev
- --since, -s, -v <version> include all changes later than version
- --until, -u <version> include all changes earlier than version
- --from, -f <version> include all changes equal or later
- than version
- --to, -t <version> include all changes up to or equal
- than version
- --count, -c, -n <number> include <number> entries from the top
- (or the tail if <number> is lower than 0)
- --offset, -o <number> change the starting point for --count,
- counted from the top (or the tail if
- <number> is lower than 0)
- --all include all changes
-
- If neither C<changelogfile> nor C<-l E<lt>fileE<gt>> are specified,
- F<debian/changelog> will be used. If two different files are
- specified the program will abort.
-
- If the filename is C<-> the program reads the changelog from
- standard input.
-
- C<--all> overrides all other range selecting options. C<--count>
- overrides all other range selection options except for C<--all>.
- The range selecting options can be mixed together, but only one
- of C<--since> and C<--from> and one of C<--until> and C<--to> can be
- specified at the same time.
-
- The dpkg and rfc822 formats default to showing only the first entry
- when no other options are given with while the HTML and XML formats
- default to showing all entries.
-
- For a more extensive documentation of the range selecting options and
- some (hopefully enlightening) examples see
- L<Parse::DebianChangelog/"COMMON OUTPUT OPTIONS">.
-
- =head1 DESCRIPTION
-
- parsechangelog parses Debian changelogs as described in the Debian
- policy (version 3.6.2.1 at the time of this writing) and converts
- them to other output formats. See section L<"SEE ALSO"> for
- locations where to find the full format definition.
-
- The output formats supported are currently:
-
- =over 4
-
- =item dpkg
-
- Format as known from L<dpkg-parsechangelog(1)>. All requested entries
- (see L<"SYNOPSIS"> on how to select specific entries) are returned in
- the usual Debian control format, merged in one stanza, ready to be used
- in a F<.changes> file.
-
- =item rfc822
-
- Similar to the C<dpkg> format, but the requested entries are returned
- as one stanza each, i.e. they are not merged. This is probably the format
- to use if you want a machine-usable representation of the changelog.
-
- =item xml
-
- Just a simple XML dump of the changelog data. Without any schema or
- DTD currently, just some made up XML. The actual format might still
- change. Comments and Improvements welcome.
-
- =item html
-
- The changelog is converted to a somewhat nice looking HTML file with
- some nice features as a quick-link bar with direct links to every entry.
- NOTE: This is not configurable yet and was specifically designed
- to be used on L<http://packages.debian.org/>. This is planned to be
- changed until version 1.0. The used Parse::DebianChangelog module
- already supports configuration, however, this isn't exposed by this
- program yet.
-
- =back
-
- =cut
-
- use strict;
- use warnings;
-
- use Getopt::Long qw(:config gnu_getopt auto_help);
- use Pod::UsageTrans;
- use Locale::gettext;
- use POSIX;
- use Parse::DebianChangelog;
-
- setlocale(LC_MESSAGES, '');
- textdomain('Parse-DebianChangelog');
-
- my ( $since, $until, $from, $to, $all, $count, $offset, $file );
- my $default_file = 'debian/changelog';
- my $format = 'dpkg';
- my %allowed_formats = (
- dpkg => 1,
- html => 1,
- xml => 1,
- rfc822 => 1,
- );
-
- sub unsupported {
- my ($opt, $val) = @_;
-
- $opt ||= '';
- $val ||= '';
-
- if ($opt eq 'F' and $val ne 'debian') {
- die sprintf( gettext('changelog format %s not supported')."\n",
- $val );
- }
-
- if ($opt eq 'L') {
- warn gettext('ignored option -L')."\n";
- }
- }
-
- sub set_format {
- my ($opt, $val) = @_;
-
- unless ($allowed_formats{$val}) {
- die sprintf( gettext('output format %s not supported')."\n",
- $val );
- }
-
- $format = $val;
- }
-
- sub help {
- pod2usage(-msg => "$0 $Parse::DebianChangelog::VERSION\n".
- gettext( "Copyright (C) 2005 by Frank Lichtenheld\n" ).
- gettext( "This is free software; see the GNU General Public ".
- "Licence version 2 or later for copying conditions. ".
- "There is NO warranty." )."\n",
- -textdomain => 'Parse-DebianChangelog-Pod',
- -exitstatus => 0);
- }
-
- sub version {
- print "$0 $Parse::DebianChangelog::VERSION\n";
- exit 0;
- }
-
- GetOptions( "file|l=s" => \$file,
- "since|v=s" => \$since,
- "until|u=s" => \$until,
- "from|f=s" => \$from,
- "to|t=s" => \$to,
- "count|c|n=i" => \$count,
- "offset|o=i" => \$offset,
- "F=s" => \&unsupported,
- "L=s" => \&unsupported,
- "help|h" => \&help,
- "version|V" => \&version,
- "format=s" => \&set_format,
- "all|a" => \$all,
- )
- or pod2usage({
- -exitvalue => 2,
- -textdomain => 'Parse-DebianChangelog-Pod'
- });
-
- die gettext('too many arguments')."\n" if @ARGV > 1;
-
- if (@ARGV) {
- if ($file && ($file ne $ARGV[0])) {
- die sprintf( gettext('more than one file specified (%s and %s)')."\n",
- $file, $ARGV[0] );
- }
- $file = $ARGV[0];
- }
-
- my $changes = Parse::DebianChangelog->init();
-
- $file ||= $default_file;
- if ($file eq '-') {
- my @input = <STDIN>;
- $changes->parse({ instring => join('', @input) })
- or die sprintf( gettext('fatal error occured while parsing %s')."\n",
- 'input' );
- } else {
- $changes->parse({ infile => $file })
- or die sprintf( gettext('fatal error occured while parsing %s')."\n",
- $file );
- }
-
-
- my @all = $all ? ( all => $all ) : ();
-
- {
- # I know that looks ugly, but at least it is safer than an eval...
- no strict 'refs';
- my $func_name = "Parse::DebianChangelog::${format}_str";
- print &{"$func_name"}( $changes,
- { since => $since, until => $until,
- from => $from, to => $to,
- count => $count, offset => $offset,
- @all });
- }
-
- __END__
-
- =head1 SEE ALSO
-
- Parse::DebianChangelog, the underlying Perl module
-
- Description of the Debian changelog format in the Debian policy:
- L<http://www.debian.org/doc/debian-policy/ch-source.html#s-dpkgchangelog>.
-
- =head1 AUTHOR
-
- Frank Lichtenheld, E<lt>frank@lichtenheld.deE<gt>
-
- =head1 COPYRIGHT AND LICENSE
-
- Copyright (C) 2005 by Frank Lichtenheld
-
- 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, write to the Free Software
- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-
- =cut
-