[PATCH 19/32] clone: support --narrow option

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

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 builtin/clone.c |   15 ++++++++++++++-
 1 files changed, 14 insertions(+), 1 deletions(-)

diff --git a/builtin/clone.c b/builtin/clone.c
index efb1e6f..65c4cee 100644
--- a/builtin/clone.c
+++ b/builtin/clone.c
@@ -23,6 +23,7 @@
 #include "branch.h"
 #include "remote.h"
 #include "run-command.h"
+#include "narrow-tree.h"
 
 /*
  * Overall FIXMEs:
@@ -39,7 +40,7 @@ static const char * const builtin_clone_usage[] = {
 
 static int option_no_checkout, option_bare, option_mirror;
 static int option_local, option_no_hardlinks, option_shared, option_recursive;
-static char *option_template, *option_reference, *option_depth;
+static char *option_template, *option_reference, *option_depth, *option_narrow;
 static char *option_origin = NULL;
 static char *option_branch = NULL;
 static char *option_upload_pack = "git-upload-pack";
@@ -78,6 +79,8 @@ static struct option builtin_clone_options[] = {
 		   "path to git-upload-pack on the remote"),
 	OPT_STRING(0, "depth", &option_depth, "depth",
 		    "create a shallow clone of that depth"),
+	OPT_STRING(0, "narrow", &option_narrow, "tree",
+		   "narrow clone"),
 
 	OPT_END()
 };
@@ -515,6 +518,8 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
 	strbuf_reset(&value);
 
 	if (path && !is_bundle) {
+		if (option_narrow)
+			die("--narrow is not really for local clone. Please consider --shared");
 		refs = clone_local(path, git_dir);
 		mapped_refs = wanted_peer_refs(refs, refspec);
 	} else {
@@ -530,6 +535,14 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
 			transport_set_option(transport, TRANS_OPT_DEPTH,
 					     option_depth);
 
+		/* Do this early in order to set get_narrow_prefix() != NULL */
+		if (option_narrow) {
+			int fd = open(git_path("narrow"), O_RDWR | O_CREAT, 0644);
+			write(fd, option_narrow, strlen(option_narrow));
+			close(fd);
+			check_narrow_prefix();
+		}
+
 		transport_set_verbosity(transport, option_verbosity, option_progress);
 
 		if (option_upload_pack)
-- 
1.7.1.rc1.69.g24c2f7