[PATCH v2 4/4] bundle: show progress on "unbundle"

["Ævar Arnfjörð Bjarmason" <avarab@gmail.com>]

The "unbundle" command added in 2e0afafebd8 (Add git-bundle: move
objects and references by archive, 2007-02-22) did not show progress
output, even though the underlying API learned how to show progress in
be042aff24c (Teach progress eye-candy to fetch_refs_from_bundle(),
2011-09-18).

Now we'll show "Unbundling objects" using the new --progress-title
option to "git index-pack", to go with its existing "Receiving
objects" and "Indexing objects" (which it shows when invoked with
"--stdin", and with a pack file, respectively).

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
---
 builtin/bundle.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/builtin/bundle.c b/builtin/bundle.c
index 10f6f45770a..f027cce3fef 100644
--- a/builtin/bundle.c
+++ b/builtin/bundle.c
@@ -162,7 +162,11 @@ static int cmd_bundle_unbundle(int argc, const char **argv, const char *prefix)
 	struct bundle_header header = BUNDLE_HEADER_INIT;
 	int bundle_fd = -1;
 	int ret;
+	int progress = isatty(2);
+
 	struct option options[] = {
+		OPT_BOOL(0, "progress", &progress,
+			 N_("show progress meter")),
 		OPT_END()
 	};
 	char* bundle_file;
@@ -178,6 +182,13 @@ static int cmd_bundle_unbundle(int argc, const char **argv, const char *prefix)
 	}
 	if (!startup_info->have_repository)
 		die(_("Need a repository to unbundle."));
+
+	if (progress) {
+		strvec_push(&extra_args, "-v");
+		strvec_push(&extra_args, "--progress-title");
+		strvec_push(&extra_args, _("Unbundling objects"));
+	}
+
 	ret = !!unbundle(the_repository, &header, bundle_fd, &extra_args) ||
 		list_bundle_refs(&header, argc, argv);
 	bundle_header_release(&header);
-- 
2.33.0.662.g438caf9576d