[catagits/Gitalist.git] / lib / Gitalist / Git / Project.pm

use MooseX::Declare;

=head1 NAME

Gitalist::Git::Project - Model of a git repository

=head1 SYNOPSIS

    my $gitrepo = dir('/repo/base/Gitalist');
    my $project = Gitalist::Git::Project->new($gitrepo);
     $project->name;        # 'Gitalist'
     $project->path;        # '/repo/base/Gitalist/.git'
     $project->description; # 'Unnamed repository.'

=head1 DESCRIPTION

This class models a git repository, referred to in Gitalist
as a "Project".

=cut

class Gitalist::Git::Project with Gitalist::Git::HasUtils {
    # FIXME, use Types::Path::Class and coerce
    use MooseX::Types::Common::String qw/NonEmptySimpleStr/;
    use MooseX::Types::Path::Class qw/Dir/;
    use MooseX::Types::Moose qw/Str Maybe Bool HashRef ArrayRef/;
    use List::MoreUtils qw/any zip/;
    use DateTime;
    use Gitalist::Git::Object::Blob;
    use Gitalist::Git::Object::Tree;
    use Gitalist::Git::Object::Commit;
    use Gitalist::Git::Object::Tag;

    our $SHA1RE = qr/[0-9a-fA-F]{40}/;

    around BUILDARGS (ClassName $class: Dir $dir) {
        # Allows us to be called as Project->new($dir)
        # Last path component becomes $self->name
        # Full path to git objects becomes $self->path
        my $name = $dir->dir_list(-1);
        $dir = $dir->subdir('.git') if (-f $dir->file('.git', 'HEAD'));
        confess("Can't find a git repository at " . $dir)
            unless ( -f $dir->file('HEAD') );
        return $class->$orig(name => $name,
                             path => $dir);
    }

=head1 ATTRIBUTES

=head2 name

The name of the Project.  By default, this is derived from the path to the git repository.

=cut
    has name => ( isa => NonEmptySimpleStr,
                  is => 'ro', required => 1 );

=head2 path

L<Path::Class:Dir> for the location of the git repository.

=cut
    has path => ( isa => Dir,
                  is => 'ro', required => 1);

=head2 description

String containing .git/description

=cut
    has description => ( isa => Str,
                         is => 'ro',
                         lazy_build => 1,
                     );

=head2 owner

Owner of the files on disk.

=cut
    has owner => ( isa => NonEmptySimpleStr,
                   is => 'ro',
                   lazy_build => 1,
               );

=head2 last_change

L<DateTime> for the time of the last update.
undef if the repository has never been used.

=cut
    has last_change => ( isa => Maybe['DateTime'],
                         is => 'ro',
                         lazy_build => 1,
                     );

=head2 is_bare

Bool indicating whether this Project is bare.

=cut
    has is_bare => ( isa => Bool,
                     is => 'ro',
                     lazy => 1,
                     default => sub {
                         -d $_[0]->path->parent->subdir->($_[0]->name)
                             ? 1 : 0
                         },
                     );

=head2 heads

ArrayRef of hashes containing the name and sha1 of all heads.

=cut
    has heads => ( isa => ArrayRef[HashRef],
                   is => 'ro',
                   lazy_build => 1);

=head2 references

Hashref of ArrayRefs for each reference.

=cut
    has references => ( isa => HashRef[ArrayRef[Str]],
                        is => 'ro',
                        lazy_build => 1 );

    method BUILD {
        $self->$_() for qw/last_change owner description/; # Ensure to build early.
    }

=head1 METHODS

=head2 head_hash ($head?)

Return the sha1 for HEAD, or any specified head.

=cut
    method head_hash (Str $head?) {
        my $output = $self->run_cmd(qw/rev-parse --verify/, $head || 'HEAD' );
        confess("No such head: " . $head) unless defined $output;

        my($sha1) = $output =~ /^($SHA1RE)$/;
        return $sha1;
    }

=head2 list_tree ($sha1?)

Return an array of contents for a given tree.
The tree is specified by sha1, and defaults to HEAD.
Each item is a L<Gitalist::Git::Object>.

=cut
    method list_tree (Str $sha1?) {
        $sha1 ||= $self->head_hash;
        my $object = $self->get_object($sha1);
        return @{$object->tree};
    }

=head2 get_object ($sha1)

Return an appropriate subclass of L<Gitalist::Git::Object> for the given sha1.

=cut
    method get_object (NonEmptySimpleStr $sha1) {
        unless ( $self->_is_valid_rev($sha1) ) {
            $sha1 = $self->head_hash($sha1);
        }
        my $type = $self->run_cmd('cat-file', '-t', $sha1);
        chomp($type);
        my $class = 'Gitalist::Git::Object::' . ucfirst($type);
        $class->new(
            project => $self,
            sha1 => $sha1,
            type => $type,
        );
    }

=head2 hash_by_path($sha1, $path, $type?)

Returns the sha1 for a given path, optionally limited by type.

=cut
    method hash_by_path ($base, $path = '', $type?) {
        $path =~ s{/+$}();
        # FIXME should this really just take the first result?
        my @paths = $self->run_cmd('ls-tree', $base, '--', $path)
            or return;
        my $line = $paths[0];

        #'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa	panic.c'
        $line =~ m/^([0-9]+) (.+) ($SHA1RE)\t/;
        return defined $type && $type ne $2
            ? ()
                : $3;
    }

=head2 list_revs($sha1, $count?, $skip?, \%search?, $file?)

Returns a list of revs for the given head ($sha1).

=cut
    method list_revs ( NonEmptySimpleStr :$sha1!,
                       Int :$count?,
                       Int :$skip?,
                       HashRef :$search?,
                       NonEmptySimpleStr :$file? ) {
        $sha1 = $self->head_hash($sha1)
            if !$sha1 || $sha1 !~ $SHA1RE;

	my @search_opts;
        if ($search) {
            $search->{type} = 'grep'
                if $search->{type} eq 'commit';
            @search_opts = (
                # This seems a little fragile ...
                qq[--$search->{type}=$search->{text}],
                '--regexp-ignore-case',
                $search->{regexp} ? '--extended-regexp' : '--fixed-strings'
            );
        }

        my $output = $self->run_cmd(
            'rev-list',
            '--header',
            (defined $count ? "--max-count=$count" : ()),
            (defined $skip ? "--skip=$skip"       : ()),
            @search_opts,
            $sha1,
            '--',
            ($file ? $file : ()),
        );
        return unless $output;

        my @revs = $self->_parse_rev_list($output);

        return @revs;
    }

=head2 snapshot($head?, $format)

Generate an archived snapshot of the repository.
Returns a filehandle to read from.

=cut

method snapshot (Gitalist::Git::Object :$commit,
                 NonEmptySimpleStr :$format
               ) {
               return $commit->snapshot;
           }

=head2 diff($commit, $patch?, $parent?, $file?)

Generate a diff from a given L<Gitalist::Git::Object>.

=cut

    method diff ( Gitalist::Git::Object :$commit!,
                  Bool :$patch?,
                  Maybe[NonEmptySimpleStr] :$parent?,
                  NonEmptySimpleStr :$file?
              ) {
              return $commit->diff( patch => $patch,
                                    parent => $parent,
                                    file => $file);
    }

=head2 reflog(@lorgargs)

Return a list of hashes representing each reflog entry.

FIXME Should this return objects?

=cut
    method reflog (@logargs) {
        my @entries
            =  $self->run_cmd(qw(log -g), @logargs)
                =~ /(^commit.+?(?:(?=^commit)|(?=\z)))/msg;

        #  commit 02526fc15beddf2c64798a947fecdd8d11bf993d
        #  Reflog: HEAD@{14} (The Git Server <git@git.dev.venda.com>)
        #  Reflog message: push
        #  Author: Foo Barsby <fbarsby@example.com>
        #  Date:   Thu Sep 17 12:26:05 2009 +0100
        #
        #      Merge branch 'abc123'

        return map {
            # XXX Stuff like this makes me want to switch to Git::PurePerl
            my($sha1, $type, $author, $date)
                = m{
                       ^ commit \s+ ($SHA1RE)$
                       .*?
                       Reflog[ ]message: \s+ (.+?)$ \s+
                     Author: \s+ ([^<]+) <.*?$ \s+
                   Date: \s+ (.+?)$
               }xms;

            pos($_) = index($_, $date) + length $date;

            # Yeah, I just did that.
            my($msg) = /\G\s+(\S.*)/sg;
            {
                hash    => $sha1,
                type    => $type,
                author  => $author,

                # XXX Add DateTime goodness.
                date    => $date,
                message => $msg,
            }
            ;
        } @entries;
    }

    ## BUILDERS
    method _build__util {
        Gitalist::Git::Util->new(
            project => $self,
        );
    }

    method _build_description {
        my $description = "";
        eval {
            $description = $self->path->file('description')->slurp;
            chomp $description;
        };
        return $description;
    }

    method _build_owner {
        my ($gecos, $name) = (getpwuid $self->path->stat->uid)[6,0];
        $gecos =~ s/,+$//;
        return length($gecos) ? $gecos : $name;
    }

    method _build_last_change {
        my $last_change;
        my $output = $self->run_cmd(
            qw{ for-each-ref --format=%(committer)
                --sort=-committerdate --count=1 refs/heads
          });
        if (my ($epoch, $tz) = $output =~ /\s(\d+)\s+([+-]\d+)$/) {
            my $dt = DateTime->from_epoch(epoch => $epoch);
            $dt->set_time_zone($tz);
            $last_change = $dt;
        }
        return $last_change;
    }

    method _build_heads {
        my @revlines = $self->run_cmd_list(qw/for-each-ref --sort=-committerdate /, '--format=%(objectname)%00%(refname)%00%(committer)', 'refs/heads');
        my @ret;
        for my $line (@revlines) {
            my ($rev, $head, $commiter) = split /\0/, $line, 3;
            $head =~ s!^refs/heads/!!;

            push @ret, { sha1 => $rev, name => $head };

            #FIXME: That isn't the time I'm looking for..
            if (my ($epoch, $tz) = $line =~ /\s(\d+)\s+([+-]\d+)$/) {
                my $dt = DateTime->from_epoch(epoch => $epoch);
                $dt->set_time_zone($tz);
                $ret[-1]->{last_change} = $dt;
            }
        }

        return \@ret;
    }

    method _build_references {
    	# 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c refs/tags/v2.6.11
    	# c39ae07f393806ccf406ef966e9a15afc43cc36a refs/tags/v2.6.11^{}
    	my @reflist = $self->run_cmd_list(qw(show-ref --dereference))
            or return;
        my %refs;
        for (@reflist) {
            push @{$refs{$1}}, $2
                if m!^($SHA1RE)\srefs/(.*)$!;
        }

        return \%refs;
    }

    ## Private methods
    method _is_valid_rev (Str $rev) {
        return ($rev =~ /^($SHA1RE)$/);
    }

    method _parse_rev_list ($output) {
        return
            map  $self->get_gpp_object($_),
                grep $self->_is_valid_rev($_),
                    map  split(/\n/, $_, 6), split /\0/, $output;
    }

=head1 SEE ALSO

L<Gitalist::Git::Util> L<Gitalist::Git::Object>

=head1 AUTHORS AND COPYRIGHT

  Catalyst application:
    (C) 2009 Venda Ltd and Dan Brook <dbrook@venda.com>

  Original gitweb.cgi from which this was derived:
    (C) 2005-2006, Kay Sievers <kay.sievers@vrfy.org>
    (C) 2005, Christian Gierke

=head1 LICENSE

FIXME - Is this going to be GPLv2 as per gitweb? If so this is broken..

This library is free software. You can redistribute it and/or modify
it under the same terms as Perl itself.

=cut

} # end class
Commit	Line	Data
56b6dbe6	1	use MooseX::Declare;
56b6dbe6	2
b5b638f7	3	=head1 NAME
b5b638f7	4
894bff59	5	Gitalist::Git::Project - Model of a git repository
b5b638f7	6
	7	=head1 SYNOPSIS
	8
561a3f14	9	my $gitrepo = dir('/repo/base/Gitalist');
	10	my $project = Gitalist::Git::Project->new($gitrepo);
	11	$project->name; # 'Gitalist'
	12	$project->path; # '/repo/base/Gitalist/.git'
	13	$project->description; # 'Unnamed repository.'
b5b638f7	14
	15	=head1 DESCRIPTION
	16
	17	This class models a git repository, referred to in Gitalist
	18	as a "Project".
	19
	20	=cut
	21
38b9e5c8	22	class Gitalist::Git::Project with Gitalist::Git::HasUtils {
56b6dbe6	23	# FIXME, use Types::Path::Class and coerce
56b6dbe6	24	use MooseX::Types::Common::String qw/NonEmptySimpleStr/;
84f31a44	25	use MooseX::Types::Path::Class qw/Dir/;
829d41ed	26	use MooseX::Types::Moose qw/Str Maybe Bool HashRef ArrayRef/;
77edf882	27	use List::MoreUtils qw/any zip/;
b5b638f7	28	use DateTime;
f3083570	29	use Gitalist::Git::Object::Blob;
467fa7d9	30	use Gitalist::Git::Object::Tree;
	31	use Gitalist::Git::Object::Commit;
	32	use Gitalist::Git::Object::Tag;
56b6dbe6	33
32a371cc	34	our $SHA1RE = qr/[0-9a-fA-F]{40}/;
	35
	36	around BUILDARGS (ClassName $class: Dir $dir) {
4b6bcf44	37	# Allows us to be called as Project->new($dir)
	38	# Last path component becomes $self->name
	39	# Full path to git objects becomes $self->path
32a371cc	40	my $name = $dir->dir_list(-1);
	41	$dir = $dir->subdir('.git') if (-f $dir->file('.git', 'HEAD'));
	42	confess("Can't find a git repository at " . $dir)
	43	unless ( -f $dir->file('HEAD') );
	44	return $class->$orig(name => $name,
	45	path => $dir);
	46	}
	47
b5b638f7	48	=head1 ATTRIBUTES
	49
	50	=head2 name
	51
cc88eca5	52	The name of the Project. By default, this is derived from the path to the git repository.
29debefd	53
cc88eca5	54	=cut
56b6dbe6	55	has name => ( isa => NonEmptySimpleStr,
01ced85b	56	is => 'ro', required => 1 );
b5b638f7	57
	58	=head2 path
	59
	60	L<Path::Class:Dir> for the location of the git repository.
	61
	62	=cut
84f31a44	63	has path => ( isa => Dir,
01ced85b	64	is => 'ro', required => 1);
56b6dbe6	65
b5b638f7	66	=head2 description
	67
	68	String containing .git/description
	69
	70	=cut
0617cbd0	71	has description => ( isa => Str,
56b6dbe6	72	is => 'ro',
	73	lazy_build => 1,
	74	);
b5b638f7	75
	76	=head2 owner
	77
	78	Owner of the files on disk.
	79
	80	=cut
56b6dbe6	81	has owner => ( isa => NonEmptySimpleStr,
	82	is => 'ro',
	83	lazy_build => 1,
	84	);
b5b638f7	85
	86	=head2 last_change
	87
	88	L<DateTime> for the time of the last update.
	89	undef if the repository has never been used.
	90
	91	=cut
0617cbd0	92	has last_change => ( isa => Maybe['DateTime'],
56b6dbe6	93	is => 'ro',
	94	lazy_build => 1,
	95	);
	96
b5b638f7	97	=head2 is_bare
	98
	99	Bool indicating whether this Project is bare.
	100
	101	=cut
b5b638f7	102	has is_bare => ( isa => Bool,
	103	is => 'ro',
	104	lazy => 1,
	105	default => sub {
	106	-d $_[0]->path->parent->subdir->($_[0]->name)
	107	? 1 : 0
	108	},
	109	);
84f31a44	110
cc88eca5	111	=head2 heads
	112
	113	ArrayRef of hashes containing the name and sha1 of all heads.
	114
	115	=cut
	116	has heads => ( isa => ArrayRef[HashRef],
	117	is => 'ro',
	118	lazy_build => 1);
	119
	120	=head2 references
	121
	122	Hashref of ArrayRefs for each reference.
	123
	124	=cut
	125	has references => ( isa => HashRef[ArrayRef[Str]],
	126	is => 'ro',
	127	lazy_build => 1 );
	128
01ced85b	129	method BUILD {
38b9e5c8	130	$self->$_() for qw/last_change owner description/; # Ensure to build early.
01ced85b	131	}
01ced85b	132
32a371cc	133	=head1 METHODS
8dbe8024	134
cc88eca5	135	=head2 head_hash ($head?)
894bff59	136
32a371cc	137	Return the sha1 for HEAD, or any specified head.
894bff59	138
32a371cc	139	=cut
32a371cc	140	method head_hash (Str $head?) {
	141	my $output = $self->run_cmd(qw/rev-parse --verify/, $head \|\| 'HEAD' );
	142	confess("No such head: " . $head) unless defined $output;
29debefd	143
32a371cc	144	my($sha1) = $output =~ /^($SHA1RE)$/;
32a371cc	145	return $sha1;
56b6dbe6	146	}
56b6dbe6	147
cc88eca5	148	=head2 list_tree ($sha1?)
a8a8f8f9	149
	150	Return an array of contents for a given tree.
	151	The tree is specified by sha1, and defaults to HEAD.
cc88eca5	152	Each item is a L<Gitalist::Git::Object>.
a8a8f8f9	153
a8a8f8f9	154	=cut
a8a8f8f9	155	method list_tree (Str $sha1?) {
a8a8f8f9	156	$sha1 \|\|= $self->head_hash;
b36b7e0b	157	my $object = $self->get_object($sha1);
b36b7e0b	158	return @{$object->tree};
a8a8f8f9	159	}
a8a8f8f9	160
cc88eca5	161	=head2 get_object ($sha1)
cc88eca5	162
467fa7d9	163	Return an appropriate subclass of L<Gitalist::Git::Object> for the given sha1.
cc88eca5	164
cc88eca5	165	=cut
8bb7649b	166	method get_object (NonEmptySimpleStr $sha1) {
894bff59	167	unless ( $self->_is_valid_rev($sha1) ) {
8bb7649b	168	$sha1 = $self->head_hash($sha1);
8bb7649b	169	}
e1307124	170	my $type = $self->run_cmd('cat-file', '-t', $sha1);
e1307124	171	chomp($type);
467fa7d9	172	my $class = 'Gitalist::Git::Object::' . ucfirst($type);
467fa7d9	173	$class->new(
54368e9d	174	project => $self,
54368e9d	175	sha1 => $sha1,
f3083570	176	type => $type,
54368e9d	177	);
54368e9d	178	}
8bb7649b	179
cc88eca5	180	=head2 hash_by_path($sha1, $path, $type?)
894bff59	181
cc88eca5	182	Returns the sha1 for a given path, optionally limited by type.
	183
	184	=cut
fc11c7f1	185	method hash_by_path ($base, $path = '', $type?) {
54368e9d	186	$path =~ s{/+$}();
32a371cc	187	# FIXME should this really just take the first result?
32a371cc	188	my @paths = $self->run_cmd('ls-tree', $base, '--', $path)
54368e9d	189	or return;
32a371cc	190	my $line = $paths[0];
54368e9d	191
	192	#'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa panic.c'
	193	$line =~ m/^([0-9]+) (.+) ($SHA1RE)\t/;
	194	return defined $type && $type ne $2
	195	? ()
	196	: $3;
	197	}
	198
cc88eca5	199	=head2 list_revs($sha1, $count?, $skip?, \%search?, $file?)
	200
	201	Returns a list of revs for the given head ($sha1).
	202
	203	=cut
4111e151	204	method list_revs ( NonEmptySimpleStr :$sha1!,
	205	Int :$count?,
	206	Int :$skip?,
	207	HashRef :$search?,
05e8b4d0	208	NonEmptySimpleStr :$file? ) {
4111e151	209	$sha1 = $self->head_hash($sha1)
	210	if !$sha1 \|\| $sha1 !~ $SHA1RE;
	211
	212	my @search_opts;
05e8b4d0	213	if ($search) {
4111e151	214	$search->{type} = 'grep'
	215	if $search->{type} eq 'commit';
	216	@search_opts = (
	217	# This seems a little fragile ...
	218	qq[--$search->{type}=$search->{text}],
	219	'--regexp-ignore-case',
	220	$search->{regexp} ? '--extended-regexp' : '--fixed-strings'
	221	);
	222	}
	223
	224	my $output = $self->run_cmd(
	225	'rev-list',
	226	'--header',
	227	(defined $count ? "--max-count=$count" : ()),
	228	(defined $skip ? "--skip=$skip" : ()),
	229	@search_opts,
	230	$sha1,
	231	'--',
	232	($file ? $file : ()),
	233	);
	234	return unless $output;
	235
cc88eca5	236	my @revs = $self->_parse_rev_list($output);
4111e151	237
	238	return @revs;
	239	}
	240
30db8f5b	241	=head2 snapshot($head?, $format)
	242
	243	Generate an archived snapshot of the repository.
	244	Returns a filehandle to read from.
	245
	246	=cut
	247
	248	method snapshot (Gitalist::Git::Object :$commit,
	249	NonEmptySimpleStr :$format
	250	) {
	251	return $commit->snapshot;
	252	}
	253
cc88eca5	254	=head2 diff($commit, $patch?, $parent?, $file?)
cc88eca5	255
1501cb4e	256	Generate a diff from a given L<Gitalist::Git::Object>.
cc88eca5	257
cc88eca5	258	=cut
54368e9d	259
cc88eca5	260	method diff ( Gitalist::Git::Object :$commit!,
77edf882	261	Bool :$patch?,
fc948aee	262	Maybe[NonEmptySimpleStr] :$parent?,
1501cb4e	263	NonEmptySimpleStr :$file?
	264	) {
	265	return $commit->diff( patch => $patch,
	266	parent => $parent,
	267	file => $file);
77edf882	268	}
77edf882	269
cc88eca5	270	=head2 reflog(@lorgargs)
77edf882	271
cc88eca5	272	Return a list of hashes representing each reflog entry.
77edf882	273
cc88eca5	274	FIXME Should this return objects?
54368e9d	275
cc88eca5	276	=cut
d8abdf1c	277	method reflog (@logargs) {
	278	my @entries
	279	= $self->run_cmd(qw(log -g), @logargs)
	280	=~ /(^commit.+?(?:(?=^commit)\|(?=\z)))/msg;
	281
05e8b4d0	282	# commit 02526fc15beddf2c64798a947fecdd8d11bf993d
	283	# Reflog: HEAD@{14} (The Git Server <git@git.dev.venda.com>)
	284	# Reflog message: push
	285	# Author: Foo Barsby <fbarsby@example.com>
	286	# Date: Thu Sep 17 12:26:05 2009 +0100
	287	#
	288	# Merge branch 'abc123'
d8abdf1c	289
	290	return map {
	291	# XXX Stuff like this makes me want to switch to Git::PurePerl
	292	my($sha1, $type, $author, $date)
	293	= m{
	294	^ commit \s+ ($SHA1RE)$
	295	.*?
	296	Reflog[ ]message: \s+ (.+?)$ \s+
	297	Author: \s+ ([^<]+) <.*?$ \s+
	298	Date: \s+ (.+?)$
	299	}xms;
	300
	301	pos($_) = index($_, $date) + length $date;
	302
	303	# Yeah, I just did that.
	304	my($msg) = /\G\s+(\S.*)/sg;
	305	{
	306	hash => $sha1,
	307	type => $type,
	308	author => $author,
	309
	310	# XXX Add DateTime goodness.
	311	date => $date,
	312	message => $msg,
	313	}
	314	;
	315	} @entries;
	316	}
	317
cc88eca5	318	## BUILDERS
32a371cc	319	method _build__util {
	320	Gitalist::Git::Util->new(
	321	project => $self,
	322	);
	323	}
	324
	325	method _build_description {
76c97bf6	326	my $description = "";
5d8568c6	327	eval {
76c97bf6	328	$description = $self->path->file('description')->slurp;
76c97bf6	329	chomp $description;
5d8568c6	330	};
76c97bf6	331	return $description;
32a371cc	332	}
	333
	334	method _build_owner {
	335	my ($gecos, $name) = (getpwuid $self->path->stat->uid)[6,0];
	336	$gecos =~ s/,+$//;
	337	return length($gecos) ? $gecos : $name;
	338	}
	339
	340	method _build_last_change {
	341	my $last_change;
	342	my $output = $self->run_cmd(
	343	qw{ for-each-ref --format=%(committer)
	344	--sort=-committerdate --count=1 refs/heads
	345	});
	346	if (my ($epoch, $tz) = $output =~ /\s(\d+)\s+([+-]\d+)$/) {
	347	my $dt = DateTime->from_epoch(epoch => $epoch);
	348	$dt->set_time_zone($tz);
	349	$last_change = $dt;
	350	}
	351	return $last_change;
	352	}
	353
cc88eca5	354	method _build_heads {
	355	my @revlines = $self->run_cmd_list(qw/for-each-ref --sort=-committerdate /, '--format=%(objectname)%00%(refname)%00%(committer)', 'refs/heads');
	356	my @ret;
	357	for my $line (@revlines) {
	358	my ($rev, $head, $commiter) = split /\0/, $line, 3;
	359	$head =~ s!^refs/heads/!!;
	360
	361	push @ret, { sha1 => $rev, name => $head };
	362
	363	#FIXME: That isn't the time I'm looking for..
	364	if (my ($epoch, $tz) = $line =~ /\s(\d+)\s+([+-]\d+)$/) {
	365	my $dt = DateTime->from_epoch(epoch => $epoch);
	366	$dt->set_time_zone($tz);
	367	$ret[-1]->{last_change} = $dt;
	368	}
	369	}
	370
	371	return \@ret;
	372	}
	373
	374	method _build_references {
	375	# 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c refs/tags/v2.6.11
	376	# c39ae07f393806ccf406ef966e9a15afc43cc36a refs/tags/v2.6.11^{}
	377	my @reflist = $self->run_cmd_list(qw(show-ref --dereference))
05e8b4d0	378	or return;
cc88eca5	379	my %refs;
05e8b4d0	380	for (@reflist) {
	381	push @{$refs{$1}}, $2
	382	if m!^($SHA1RE)\srefs/(.*)$!;
	383	}
cc88eca5	384
05e8b4d0	385	return \%refs;
cc88eca5	386	}
	387
	388	## Private methods
	389	method _is_valid_rev (Str $rev) {
	390	return ($rev =~ /^($SHA1RE)$/);
	391	}
	392
	393	method _parse_rev_list ($output) {
	394	return
	395	map $self->get_gpp_object($_),
	396	grep $self->_is_valid_rev($_),
	397	map split(/\n/, $_, 6), split /\0/, $output;
	398	}
	399
b5b638f7	400	=head1 SEE ALSO
	401
	402	L<Gitalist::Git::Util> L<Gitalist::Git::Object>
	403
	404	=head1 AUTHORS AND COPYRIGHT
	405
	406	Catalyst application:
	407	(C) 2009 Venda Ltd and Dan Brook <dbrook@venda.com>
	408
	409	Original gitweb.cgi from which this was derived:
	410	(C) 2005-2006, Kay Sievers <kay.sievers@vrfy.org>
	411	(C) 2005, Christian Gierke
	412
	413	=head1 LICENSE
	414
	415	FIXME - Is this going to be GPLv2 as per gitweb? If so this is broken..
	416
	417	This library is free software. You can redistribute it and/or modify
	418	it under the same terms as Perl itself.
	419
	420	=cut
	421
56b6dbe6	422	} # end class