[PATCH 1/3] clone: do not accept --depth on local clones

["Nguyễn Thái Ngọc Duy" <pclouds@gmail.com>]

clone_local() function disregards --depth. Make it more apparent.
Also hint users that file:// works with --depth.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 builtin/clone.c |    8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/builtin/clone.c b/builtin/clone.c
index efb1e6f..e787cf2 100644
--- a/builtin/clone.c
+++ b/builtin/clone.c
@@ -361,7 +361,7 @@ static void write_remote_refs(const struct ref *local_refs)
 
 int cmd_clone(int argc, const char **argv, const char *prefix)
 {
-	int is_bundle = 0;
+	int is_bundle = 0, is_local;
 	struct stat buf;
 	const char *repo_name, *repo, *work_tree, *git_dir;
 	char *path, *dir;
@@ -414,6 +414,10 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
 		repo = xstrdup(make_absolute_path(repo_name));
 	else
 		repo = repo_name;
+	is_local = path && !is_bundle;
+	if (is_local && option_depth)
+		die("local clone with --depth does not make sense\n"
+		    "hint: use file:// instead");
 
 	if (argc == 2)
 		dir = xstrdup(argv[1]);
@@ -514,7 +518,7 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
 
 	strbuf_reset(&value);
 
-	if (path && !is_bundle) {
+	if (is_local) {
 		refs = clone_local(path, git_dir);
 		mapped_refs = wanted_peer_refs(refs, refspec);
 	} else {
-- 
1.7.1.rc1.69.g24c2f7