[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 Moose::Autobox;
    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 tags

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

=cut
    has tags => ( 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($sha1, $format)

Generate an archived snapshot of the repository.
$sha1 should be a commit or tree.
Returns a filehandle to read from.

=cut

method snapshot (NonEmptySimpleStr :$sha1,
                 NonEmptySimpleStr :$format
               ) {
    # TODO - only valid formats are 'tar' and 'zip'
    my $formats = { tgz => 'tar', zip => 'zip' };
    unless ($formats->exists($format)) {
        die("No such format: $format");
    }
    $format = $formats->{$format};
    my $name = $self->name;
    $name =~ s,([^/])/*\.git$,$1,;
    my $filename = $name;
    $filename .= "-$sha1.$format";
    $name =~ s/\047/\047\\\047\047/g;

    my @cmd = ('archive', "--format=$format", "--prefix=$name/", $sha1);
    return ($filename, $self->run_cmd_fh(@cmd));
    # TODO - support compressed archives
}

=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_tags {
        my @revlines = $self->run_cmd_list('for-each-ref',
          '--sort=-creatordate',
          '--format=%(objectname) %(objecttype) %(refname) %(*objectname) %(*objecttype) %(subject)%00%(creator)',
	  'refs/tags'
        );
        my @ret;
        for my $line (@revlines) {
            my($refinfo, $creatorinfo) = split /\0/, $line;
	    my($rev, $type, $name, $refid, $reftype, $title) = split(' ', $refinfo, 6);
            my($creator, $epoch, $tz) = ($creatorinfo =~ /^(.*) ([0-9]+) (.*)$/);
            $name =~ s!^refs/tags/!!;

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

            #FIXME: That isn't the time I'm looking for..
            if($epoch and $tz) {
                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/;
2e79039a	27	use Moose::Autobox;
77edf882	28	use List::MoreUtils qw/any zip/;
b5b638f7	29	use DateTime;
f3083570	30	use Gitalist::Git::Object::Blob;
467fa7d9	31	use Gitalist::Git::Object::Tree;
	32	use Gitalist::Git::Object::Commit;
	33	use Gitalist::Git::Object::Tag;
56b6dbe6	34
32a371cc	35	our $SHA1RE = qr/[0-9a-fA-F]{40}/;
	36
	37	around BUILDARGS (ClassName $class: Dir $dir) {
4b6bcf44	38	# Allows us to be called as Project->new($dir)
	39	# Last path component becomes $self->name
	40	# Full path to git objects becomes $self->path
32a371cc	41	my $name = $dir->dir_list(-1);
	42	$dir = $dir->subdir('.git') if (-f $dir->file('.git', 'HEAD'));
	43	confess("Can't find a git repository at " . $dir)
	44	unless ( -f $dir->file('HEAD') );
	45	return $class->$orig(name => $name,
	46	path => $dir);
	47	}
	48
b5b638f7	49	=head1 ATTRIBUTES
	50
	51	=head2 name
	52
cc88eca5	53	The name of the Project. By default, this is derived from the path to the git repository.
29debefd	54
cc88eca5	55	=cut
56b6dbe6	56	has name => ( isa => NonEmptySimpleStr,
01ced85b	57	is => 'ro', required => 1 );
b5b638f7	58
	59	=head2 path
	60
	61	L<Path::Class:Dir> for the location of the git repository.
	62
	63	=cut
84f31a44	64	has path => ( isa => Dir,
01ced85b	65	is => 'ro', required => 1);
56b6dbe6	66
b5b638f7	67	=head2 description
	68
	69	String containing .git/description
	70
	71	=cut
0617cbd0	72	has description => ( isa => Str,
56b6dbe6	73	is => 'ro',
	74	lazy_build => 1,
	75	);
b5b638f7	76
	77	=head2 owner
	78
	79	Owner of the files on disk.
	80
	81	=cut
56b6dbe6	82	has owner => ( isa => NonEmptySimpleStr,
	83	is => 'ro',
	84	lazy_build => 1,
	85	);
b5b638f7	86
	87	=head2 last_change
	88
	89	L<DateTime> for the time of the last update.
	90	undef if the repository has never been used.
	91
	92	=cut
0617cbd0	93	has last_change => ( isa => Maybe['DateTime'],
56b6dbe6	94	is => 'ro',
	95	lazy_build => 1,
	96	);
	97
b5b638f7	98	=head2 is_bare
	99
	100	Bool indicating whether this Project is bare.
	101
	102	=cut
b5b638f7	103	has is_bare => ( isa => Bool,
	104	is => 'ro',
	105	lazy => 1,
	106	default => sub {
	107	-d $_[0]->path->parent->subdir->($_[0]->name)
	108	? 1 : 0
	109	},
	110	);
84f31a44	111
cc88eca5	112	=head2 heads
	113
	114	ArrayRef of hashes containing the name and sha1 of all heads.
	115
	116	=cut
	117	has heads => ( isa => ArrayRef[HashRef],
	118	is => 'ro',
	119	lazy_build => 1);
ea19a20c	120	=head2 tags
	121
	122	ArrayRef of hashes containing the name and sha1 of all tags.
	123
	124	=cut
	125	has tags => ( isa => ArrayRef[HashRef],
	126	is => 'ro',
	127	lazy_build => 1);
cc88eca5	128
	129	=head2 references
	130
	131	Hashref of ArrayRefs for each reference.
	132
	133	=cut
	134	has references => ( isa => HashRef[ArrayRef[Str]],
	135	is => 'ro',
	136	lazy_build => 1 );
	137
01ced85b	138	method BUILD {
38b9e5c8	139	$self->$_() for qw/last_change owner description/; # Ensure to build early.
01ced85b	140	}
01ced85b	141
32a371cc	142	=head1 METHODS
8dbe8024	143
cc88eca5	144	=head2 head_hash ($head?)
894bff59	145
32a371cc	146	Return the sha1 for HEAD, or any specified head.
894bff59	147
32a371cc	148	=cut
32a371cc	149	method head_hash (Str $head?) {
	150	my $output = $self->run_cmd(qw/rev-parse --verify/, $head \|\| 'HEAD' );
	151	confess("No such head: " . $head) unless defined $output;
29debefd	152
32a371cc	153	my($sha1) = $output =~ /^($SHA1RE)$/;
32a371cc	154	return $sha1;
56b6dbe6	155	}
56b6dbe6	156
cc88eca5	157	=head2 list_tree ($sha1?)
a8a8f8f9	158
	159	Return an array of contents for a given tree.
	160	The tree is specified by sha1, and defaults to HEAD.
cc88eca5	161	Each item is a L<Gitalist::Git::Object>.
a8a8f8f9	162
a8a8f8f9	163	=cut
a8a8f8f9	164	method list_tree (Str $sha1?) {
a8a8f8f9	165	$sha1 \|\|= $self->head_hash;
b36b7e0b	166	my $object = $self->get_object($sha1);
b36b7e0b	167	return @{$object->tree};
a8a8f8f9	168	}
a8a8f8f9	169
cc88eca5	170	=head2 get_object ($sha1)
cc88eca5	171
467fa7d9	172	Return an appropriate subclass of L<Gitalist::Git::Object> for the given sha1.
cc88eca5	173
cc88eca5	174	=cut
8bb7649b	175	method get_object (NonEmptySimpleStr $sha1) {
894bff59	176	unless ( $self->_is_valid_rev($sha1) ) {
8bb7649b	177	$sha1 = $self->head_hash($sha1);
8bb7649b	178	}
e1307124	179	my $type = $self->run_cmd('cat-file', '-t', $sha1);
e1307124	180	chomp($type);
467fa7d9	181	my $class = 'Gitalist::Git::Object::' . ucfirst($type);
467fa7d9	182	$class->new(
54368e9d	183	project => $self,
54368e9d	184	sha1 => $sha1,
f3083570	185	type => $type,
54368e9d	186	);
54368e9d	187	}
8bb7649b	188
cc88eca5	189	=head2 hash_by_path($sha1, $path, $type?)
894bff59	190
cc88eca5	191	Returns the sha1 for a given path, optionally limited by type.
	192
	193	=cut
fc11c7f1	194	method hash_by_path ($base, $path = '', $type?) {
54368e9d	195	$path =~ s{/+$}();
32a371cc	196	# FIXME should this really just take the first result?
32a371cc	197	my @paths = $self->run_cmd('ls-tree', $base, '--', $path)
54368e9d	198	or return;
32a371cc	199	my $line = $paths[0];
54368e9d	200
	201	#'100644 blob 0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa panic.c'
	202	$line =~ m/^([0-9]+) (.+) ($SHA1RE)\t/;
	203	return defined $type && $type ne $2
	204	? ()
	205	: $3;
	206	}
	207
cc88eca5	208	=head2 list_revs($sha1, $count?, $skip?, \%search?, $file?)
	209
	210	Returns a list of revs for the given head ($sha1).
	211
	212	=cut
4111e151	213	method list_revs ( NonEmptySimpleStr :$sha1!,
	214	Int :$count?,
	215	Int :$skip?,
	216	HashRef :$search?,
05e8b4d0	217	NonEmptySimpleStr :$file? ) {
4111e151	218	$sha1 = $self->head_hash($sha1)
	219	if !$sha1 \|\| $sha1 !~ $SHA1RE;
	220
	221	my @search_opts;
05e8b4d0	222	if ($search) {
4111e151	223	$search->{type} = 'grep'
	224	if $search->{type} eq 'commit';
	225	@search_opts = (
	226	# This seems a little fragile ...
	227	qq[--$search->{type}=$search->{text}],
	228	'--regexp-ignore-case',
	229	$search->{regexp} ? '--extended-regexp' : '--fixed-strings'
	230	);
	231	}
	232
	233	my $output = $self->run_cmd(
	234	'rev-list',
	235	'--header',
	236	(defined $count ? "--max-count=$count" : ()),
	237	(defined $skip ? "--skip=$skip" : ()),
	238	@search_opts,
	239	$sha1,
	240	'--',
	241	($file ? $file : ()),
	242	);
	243	return unless $output;
	244
cc88eca5	245	my @revs = $self->_parse_rev_list($output);
4111e151	246
	247	return @revs;
	248	}
	249
2e79039a	250	=head2 snapshot($sha1, $format)
30db8f5b	251
30db8f5b	252	Generate an archived snapshot of the repository.
2e79039a	253	$sha1 should be a commit or tree.
30db8f5b	254	Returns a filehandle to read from.
	255
	256	=cut
	257
2e79039a	258	method snapshot (NonEmptySimpleStr :$sha1,
30db8f5b	259	NonEmptySimpleStr :$format
30db8f5b	260	) {
2e79039a	261	# TODO - only valid formats are 'tar' and 'zip'
	262	my $formats = { tgz => 'tar', zip => 'zip' };
	263	unless ($formats->exists($format)) {
	264	die("No such format: $format");
	265	}
	266	$format = $formats->{$format};
	267	my $name = $self->name;
	268	$name =~ s,([^/])/*\.git$,$1,;
349064ed	269	my $filename = $name;
2e79039a	270	$filename .= "-$sha1.$format";
	271	$name =~ s/\047/\047\\\047\047/g;
	272
2e79039a	273	my @cmd = ('archive', "--format=$format", "--prefix=$name/", $sha1);
c0dbe239	274	return ($filename, $self->run_cmd_fh(@cmd));
2e79039a	275	# TODO - support compressed archives
2e79039a	276	}
30db8f5b	277
cc88eca5	278	=head2 diff($commit, $patch?, $parent?, $file?)
cc88eca5	279
1501cb4e	280	Generate a diff from a given L<Gitalist::Git::Object>.
cc88eca5	281
cc88eca5	282	=cut
54368e9d	283
cc88eca5	284	method diff ( Gitalist::Git::Object :$commit!,
77edf882	285	Bool :$patch?,
fc948aee	286	Maybe[NonEmptySimpleStr] :$parent?,
1501cb4e	287	NonEmptySimpleStr :$file?
	288	) {
	289	return $commit->diff( patch => $patch,
	290	parent => $parent,
	291	file => $file);
77edf882	292	}
77edf882	293
cc88eca5	294	=head2 reflog(@lorgargs)
77edf882	295
cc88eca5	296	Return a list of hashes representing each reflog entry.
77edf882	297
cc88eca5	298	FIXME Should this return objects?
54368e9d	299
cc88eca5	300	=cut
d8abdf1c	301	method reflog (@logargs) {
	302	my @entries
	303	= $self->run_cmd(qw(log -g), @logargs)
	304	=~ /(^commit.+?(?:(?=^commit)\|(?=\z)))/msg;
	305
05e8b4d0	306	# commit 02526fc15beddf2c64798a947fecdd8d11bf993d
	307	# Reflog: HEAD@{14} (The Git Server <git@git.dev.venda.com>)
	308	# Reflog message: push
	309	# Author: Foo Barsby <fbarsby@example.com>
	310	# Date: Thu Sep 17 12:26:05 2009 +0100
	311	#
	312	# Merge branch 'abc123'
d8abdf1c	313
	314	return map {
	315	# XXX Stuff like this makes me want to switch to Git::PurePerl
	316	my($sha1, $type, $author, $date)
	317	= m{
	318	^ commit \s+ ($SHA1RE)$
	319	.*?
	320	Reflog[ ]message: \s+ (.+?)$ \s+
	321	Author: \s+ ([^<]+) <.*?$ \s+
	322	Date: \s+ (.+?)$
	323	}xms;
	324
	325	pos($_) = index($_, $date) + length $date;
	326
	327	# Yeah, I just did that.
	328	my($msg) = /\G\s+(\S.*)/sg;
	329	{
	330	hash => $sha1,
	331	type => $type,
	332	author => $author,
	333
	334	# XXX Add DateTime goodness.
	335	date => $date,
	336	message => $msg,
	337	}
	338	;
	339	} @entries;
	340	}
	341
cc88eca5	342	## BUILDERS
32a371cc	343	method _build__util {
	344	Gitalist::Git::Util->new(
	345	project => $self,
	346	);
	347	}
	348
	349	method _build_description {
76c97bf6	350	my $description = "";
5d8568c6	351	eval {
76c97bf6	352	$description = $self->path->file('description')->slurp;
76c97bf6	353	chomp $description;
5d8568c6	354	};
76c97bf6	355	return $description;
32a371cc	356	}
	357
	358	method _build_owner {
	359	my ($gecos, $name) = (getpwuid $self->path->stat->uid)[6,0];
	360	$gecos =~ s/,+$//;
	361	return length($gecos) ? $gecos : $name;
	362	}
	363
	364	method _build_last_change {
	365	my $last_change;
	366	my $output = $self->run_cmd(
	367	qw{ for-each-ref --format=%(committer)
	368	--sort=-committerdate --count=1 refs/heads
	369	});
	370	if (my ($epoch, $tz) = $output =~ /\s(\d+)\s+([+-]\d+)$/) {
	371	my $dt = DateTime->from_epoch(epoch => $epoch);
	372	$dt->set_time_zone($tz);
	373	$last_change = $dt;
	374	}
	375	return $last_change;
	376	}
	377
cc88eca5	378	method _build_heads {
	379	my @revlines = $self->run_cmd_list(qw/for-each-ref --sort=-committerdate /, '--format=%(objectname)%00%(refname)%00%(committer)', 'refs/heads');
	380	my @ret;
	381	for my $line (@revlines) {
	382	my ($rev, $head, $commiter) = split /\0/, $line, 3;
	383	$head =~ s!^refs/heads/!!;
	384
	385	push @ret, { sha1 => $rev, name => $head };
	386
	387	#FIXME: That isn't the time I'm looking for..
	388	if (my ($epoch, $tz) = $line =~ /\s(\d+)\s+([+-]\d+)$/) {
	389	my $dt = DateTime->from_epoch(epoch => $epoch);
	390	$dt->set_time_zone($tz);
	391	$ret[-1]->{last_change} = $dt;
	392	}
	393	}
	394
	395	return \@ret;
	396	}
	397
ea19a20c	398	method _build_tags {
	399	my @revlines = $self->run_cmd_list('for-each-ref',
	400	'--sort=-creatordate',
	401	'--format=%(objectname) %(objecttype) %(refname) %(objectname) %(objecttype) %(subject)%00%(creator)',
	402	'refs/tags'
	403	);
	404	my @ret;
	405	for my $line (@revlines) {
	406	my($refinfo, $creatorinfo) = split /\0/, $line;
	407	my($rev, $type, $name, $refid, $reftype, $title) = split(' ', $refinfo, 6);
	408	my($creator, $epoch, $tz) = ($creatorinfo =~ /^(.) ([0-9]+) (.)$/);
	409	$name =~ s!^refs/tags/!!;
	410
	411	push @ret, { sha1 => $rev, name => $name };
	412
	413	#FIXME: That isn't the time I'm looking for..
	414	if($epoch and $tz) {
	415	my $dt = DateTime->from_epoch(epoch => $epoch);
	416	$dt->set_time_zone($tz);
	417	$ret[-1]->{last_change} = $dt;
	418	}
	419	}
	420
	421	return \@ret;
	422	}
	423
cc88eca5	424	method _build_references {
	425	# 5dc01c595e6c6ec9ccda4f6f69c131c0dd945f8c refs/tags/v2.6.11
	426	# c39ae07f393806ccf406ef966e9a15afc43cc36a refs/tags/v2.6.11^{}
	427	my @reflist = $self->run_cmd_list(qw(show-ref --dereference))
05e8b4d0	428	or return;
cc88eca5	429	my %refs;
05e8b4d0	430	for (@reflist) {
	431	push @{$refs{$1}}, $2
	432	if m!^($SHA1RE)\srefs/(.*)$!;
	433	}
cc88eca5	434
05e8b4d0	435	return \%refs;
cc88eca5	436	}
	437
	438	## Private methods
	439	method _is_valid_rev (Str $rev) {
	440	return ($rev =~ /^($SHA1RE)$/);
	441	}
	442
	443	method _parse_rev_list ($output) {
	444	return
	445	map $self->get_gpp_object($_),
	446	grep $self->_is_valid_rev($_),
	447	map split(/\n/, $_, 6), split /\0/, $output;
	448	}
	449
b5b638f7	450	=head1 SEE ALSO
	451
	452	L<Gitalist::Git::Util> L<Gitalist::Git::Object>
	453
	454	=head1 AUTHORS AND COPYRIGHT
	455
	456	Catalyst application:
	457	(C) 2009 Venda Ltd and Dan Brook <dbrook@venda.com>
	458
	459	Original gitweb.cgi from which this was derived:
	460	(C) 2005-2006, Kay Sievers <kay.sievers@vrfy.org>
	461	(C) 2005, Christian Gierke
	462
	463	=head1 LICENSE
	464
	465	FIXME - Is this going to be GPLv2 as per gitweb? If so this is broken..
	466
	467	This library is free software. You can redistribute it and/or modify
	468	it under the same terms as Perl itself.
	469
	470	=cut
	471
56b6dbe6	472	} # end class