git: add support for qx wrapper

This lets us one-line git commands easily like ``, but without
having to remember --git-dir or escape arguments.

2 files changed, 16 insertions, 0 deletions

diff --git a/lib/PublicInbox/Git.pm b/lib/PublicInbox/Git.pm
index a7e50925..ac556426 100644
--- a/lib/PublicInbox/Git.pm
+++ b/lib/PublicInbox/Git.pm
@@ -131,6 +131,14 @@ sub popen {
         popen_rd(\@cmd);
 }
 
+sub qx {
+        my ($self, @cmd) = @_;
+        my $fh = $self->popen(@cmd);
+        return <$fh> if wantarray;
+        local $/;
+        <$fh>
+}
+
 sub cleanup {
         my ($self) = @_;
         _destroy($self, qw(in out pid));
diff --git a/t/git.t b/t/git.t
index 0f3dbae3..d7b20d0d 100644
--- a/t/git.t
+++ b/t/git.t
@@ -129,6 +129,14 @@ if (1) {
                 local $/;
                 is($all, <$fh>, 'entire read matches');
         };
+
+        my $ref = $gcf->qx(qw(cat-file blob), $buf);
+        is($all, $ref, 'qx read giant single string');
+
+        my @ref = $gcf->qx(qw(cat-file blob), $buf);
+        is($all, join('', @ref), 'qx returned array when wanted');
+        my $nl = scalar @ref;
+        ok($nl > 1, "qx returned array length of $nl");
 }
 
 done_testing();