1 files changed, 111 insertions, 0 deletions
diff --git a/lib/LXRng/Repo/Git.pm b/lib/LXRng/Repo/Git.pm
new file mode 100644
index 0000000..2d6ea33
--- /dev/null
+++ b/lib/LXRng/Repo/Git.pm
@@ -0,0 +1,111 @@
+package LXRng::Repo::Git;
+
+use strict;
+use Memoize;
+use LXRng::Cached;
+use LXRng::Repo::Git::Iterator;
+use LXRng::Repo::Git::File;
+use LXRng::Repo::Git::Directory;
+
+sub _git_cmd {
+    my ($self, $cmd, @args) = @_;
+
+    my $git;
+    my $pid = open($git, "-|");
+    die $! unless defined $pid;
+    if ($pid == 0) {
+	$ENV{'GIT_DIR'} = $$self{'root'};
+	exec('git', $cmd, @args);
+	warn $!;
+	kill(9, $$);
+    }
+    return $git;
+}
+
+sub new {
+    my ($class, $root, %args) = @_;
+
+    memoize('_release_timestamp');
+
+    return bless({root => $root, %args}, $class);
+}
+
+sub _release_timestamp {
+    my ($self, $release) = @_;
+
+    my $cinfo = $self->_git_cmd('cat-file', 'commit', $release);
+
+    my $time;
+    while (<$cinfo>) {
+	$time = $1 if /^author .*? (\d+(?: [-+]\d+|))$/ ;
+	$time ||= $1 if /^committer .*? (\d+(?: [-+]\d+|))$/ ;
+    }
+    
+    return $time;
+}
+
+sub _use_author_timestamp {
+    my ($self) = @_;
+
+    return $$self{'author_timestamp'};
+}
+
+sub _sort_key {
+    my ($v) = @_;
+
+    $v =~ s/(\d+)/sprintf("%05d", $1)/ge;
+    return $v;
+}
+
+sub allversions {
+    my ($self) = @_;
+
+    cached {
+	my @tags;
+	my $tags = $self->_git_cmd('tag', '-l');
+	while (<$tags>) {
+	    chomp;
+	    next if $$self{'release_re'} and $_ !~ $$self{'release_re'};
+	    push(@tags, $_);
+	}
+
+	return (sort {_sort_key($b) cmp _sort_key($a) } @tags);
+    };
+}
+
+sub node {
+    my ($self, $path, $release) = @_;
+
+    $path =~ s,^/+,,;
+    $path =~ s,/+$,,;
+
+    if ($path eq '') {
+	open(my $tag, '<', $$self{'root'}.'/refs/tags/'.$release)
+	    or return undef;
+	my $ref = <$tag>;
+	close($tag);
+	chomp($ref);
+	return LXRng::Repo::Git::Directory->new($self, '', $ref);
+    }
+
+    my $git = $self->_git_cmd('ls-tree', $release, $path);
+    my ($mode, $type, $ref, $gitpath) = split(" ", <$git>);
+
+    if ($type eq 'tree') {
+	return LXRng::Repo::Git::Directory->new($self, $path, $ref, $release);
+    }
+    elsif ($type eq 'blob') {
+	return LXRng::Repo::Git::File->new($self, $path, $ref, $release);
+    }
+    else {
+	return undef;
+    }
+}
+
+sub iterator {
+    my ($self, $release) = @_;
+
+    return LXRng::Repo::Git::Iterator->new($self, $release);
+}
+
+1;