1 files changed, 33 insertions, 0 deletions
diff --git a/third_party/git/perl/Git/IndexInfo.pm b/third_party/git/perl/Git/IndexInfo.pm
new file mode 100644
index 000000000000..a43108c98544
--- /dev/null
+++ b/third_party/git/perl/Git/IndexInfo.pm
@@ -0,0 +1,33 @@
+package Git::IndexInfo;
+use strict;
+use warnings;
+use Git qw/command_input_pipe command_close_pipe/;
+
+sub new {
+	my ($class) = @_;
+	my ($gui, $ctx) = command_input_pipe(qw/update-index -z --index-info/);
+	bless { gui => $gui, ctx => $ctx, nr => 0}, $class;
+}
+
+sub remove {
+	my ($self, $path) = @_;
+	if (print { $self->{gui} } '0 ', 0 x 40, "\t", $path, "\0") {
+		return ++$self->{nr};
+	}
+	undef;
+}
+
+sub update {
+	my ($self, $mode, $hash, $path) = @_;
+	if (print { $self->{gui} } $mode, ' ', $hash, "\t", $path, "\0") {
+		return ++$self->{nr};
+	}
+	undef;
+}
+
+sub DESTROY {
+	my ($self) = @_;
+	command_close_pipe($self->{gui}, $self->{ctx});
+}
+
+1;