Create Head instances from unparsed git output.

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

diff --git a/lib/Gitalist/Git/Util.pm b/lib/Gitalist/Git/Util.pm
index 8f7dd0f..9638b8c 100644 (file)
--- a/lib/Gitalist/Git/Util.pm
+++ b/lib/Gitalist/Git/Util.pm
@@ -1,8 +1,21 @@
 use MooseX::Declare;
 
 class Gitalist::Git::Util {
-    has git      => ( isa => NonEmptySimpleStr, is => 'ro', lazy_build => 1 );
-    sub _build_git {
+    use File::Which;
+    use Git::PurePerl;
+    use IPC::Run qw(run start);
+    use Symbol qw(geniosym);
+    use MooseX::Types::Common::String qw/NonEmptySimpleStr/;
+
+    has repository => (
+        isa => 'Gitalist::Git::Repository',
+        handles => { gitdir => 'path' },
+        is => 'bare', # No accessor
+        weak_ref => 1, # Weak, you have to hold onto me.
+        predicate => 'has_repository',
+    );
+    has _git      => ( isa => NonEmptySimpleStr, is => 'ro', lazy_build => 1 );
+    sub _build__git {
         my $git = File::Which::which('git');
 
         if (!$git) {
@@ -15,11 +28,66 @@ EOR
         return $git;
     }
 
-    
+    has gpp      => (
+        isa => 'Git::PurePerl', is => 'ro', lazy => 1,
+        default => sub {
+            my $self = shift;
+            confess("Cannot get gpp without repository")
+                unless $self->has_repository;
+            Git::PurePerl->new(gitdir => $self->gitdir);
+        },
+    );
 
+    method run_cmd (@args) {
+        unshift @args, ( '--git-dir' => $self->gitdir )
+            if $self->has_repository;
+#        print STDERR 'RUNNING: ', $self->_git, qq[ @args], $/;
+        run [$self->_git, @args], \my($in, $out, $err);
 
+        return $out;
+    }
 
+    method run_cmd_fh (@args) {
+        my ($in, $out, $err) = (geniosym, geniosym, geniosym);
+        unshift @args, ('--git-dir' => $self->gitdir)
+            if $self->has_repository;
+#        print STDERR 'RUNNING: ', $self->_git, qq[ @args], $/;
+        start [$self->_git, @args],
+            '<pipe', $in,
+            '>pipe', $out,
+            '2>pipe', $err
+                or die "cmd returned *?";
+        return $out;
+    }
 
+    method run_cmd_list (@args) {
+        my $cmdout = $self->run_cmd(@args);
+        return $cmdout ? split(/\n/, $cmdout) : ();
+    }
+
+    method get_gpp_object (NonEmptySimpleStr $sha1) {
+        return $self->gpp->get_object($sha1) || undef;
+    }
 
-#
 } # end class
+
+__END__
+
+=head1 NAME
+
+Gitalist::Git::Util - Class for utilities to run git or deal with Git::PurePerl
+
+=head1 SEE ALSO
+
+L<Git::PurePerl>.
+
+=head1 AUTHORS
+
+See L<Gitalist> for authors.
+
+=head1 LICENSE
+
+See L<Gitalist> for the license.
+
+=cut
+