[PATCH] Teach progress eye-candy to fetch_refs_from_bundle()

[Junio C Hamano <gitster@pobox.com>]

With the usual "git" transport, a large-ish transfer with "git fetch" and
"git pull" give progress eye-candy to avoid boring users.  However, not
when they are reading from a bundle. I.e.

    $ git pull ../git-bundle.bndl master

This teaches bundle.c:unbundle() to give "-v" option to index-pack and
tell it to give progress bar when transport decides it is necessary.

The operation in the other direction, "git bundle create", could also
learn to honor --quiet but that is a separate issue.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 builtin/bundle.c |    2 +-
 bundle.c         |    7 +++++--
 bundle.h         |    3 ++-
 transport.c      |    3 ++-
 4 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/builtin/bundle.c b/builtin/bundle.c
index 81046a9..92a8a60 100644
--- a/builtin/bundle.c
+++ b/builtin/bundle.c
@@ -58,7 +58,7 @@ int cmd_bundle(int argc, const char **argv, const char *prefix)
 	} else if (!strcmp(cmd, "unbundle")) {
 		if (!startup_info->have_repository)
 			die(_("Need a repository to unbundle."));
-		return !!unbundle(&header, bundle_fd) ||
+		return !!unbundle(&header, bundle_fd, 0) ||
 			list_bundle_refs(&header, argc, argv);
 	} else
 		usage(builtin_bundle_usage);
diff --git a/bundle.c b/bundle.c
index f48fd7d..6bf8497 100644
--- a/bundle.c
+++ b/bundle.c
@@ -380,12 +380,15 @@ int create_bundle(struct bundle_header *header, const char *path,
 	return 0;
 }
 
-int unbundle(struct bundle_header *header, int bundle_fd)
+int unbundle(struct bundle_header *header, int bundle_fd, int flags)
 {
 	const char *argv_index_pack[] = {"index-pack",
-		"--fix-thin", "--stdin", NULL};
+					 "--fix-thin", "--stdin", NULL, NULL};
 	struct child_process ip;
 
+	if (flags & BUNDLE_VERBOSE)
+		argv_index_pack[3] = "-v";
+
 	if (verify_bundle(header, 0))
 		return -1;
 	memset(&ip, 0, sizeof(ip));
diff --git a/bundle.h b/bundle.h
index e2aedd6..c5a22c8 100644
--- a/bundle.h
+++ b/bundle.h
@@ -18,7 +18,8 @@ int read_bundle_header(const char *path, struct bundle_header *header);
 int create_bundle(struct bundle_header *header, const char *path,
 		int argc, const char **argv);
 int verify_bundle(struct bundle_header *header, int verbose);
-int unbundle(struct bundle_header *header, int bundle_fd);
+#define BUNDLE_VERBOSE 1
+int unbundle(struct bundle_header *header, int bundle_fd, int flags);
 int list_bundle_refs(struct bundle_header *header,
 		int argc, const char **argv);
 
diff --git a/transport.c b/transport.c
index fa279d5..e194061 100644
--- a/transport.c
+++ b/transport.c
@@ -432,7 +432,8 @@ static int fetch_refs_from_bundle(struct transport *transport,
 			       int nr_heads, struct ref **to_fetch)
 {
 	struct bundle_transport_data *data = transport->data;
-	return unbundle(&data->header, data->fd);
+	return unbundle(&data->header, data->fd,
+			transport->progress ? BUNDLE_VERBOSE : 0);
 }
 
 static int close_bundle(struct transport *transport)