Merge branch 'nd/maint-clone-gitdir' into maint

* nd/maint-clone-gitdir:
  clone: allow to clone from .git file
  read_gitfile_gently(): rename misnamed function to read_gitfile()

1 files changed, 18 insertions, 1 deletions

diff --git a/builtin/clone.c b/builtin/clone.c
index f579794d9a..ec57f3dbe4 100644
--- a/builtin/clone.c
+++ b/builtin/clone.c
@@ -101,9 +101,26 @@ static char *get_repo_path(const char *repo, int *is_bundle)
 	for (i = 0; i < ARRAY_SIZE(suffix); i++) {
 		const char *path;
 		path = mkpath("%s%s", repo, suffix[i]);
-		if (is_directory(path)) {
+		if (stat(path, &st))
+			continue;
+		if (S_ISDIR(st.st_mode)) {
 			*is_bundle = 0;
 			return xstrdup(absolute_path(path));
+		} else if (S_ISREG(st.st_mode) && st.st_size > 8) {
+			/* Is it a "gitfile"? */
+			char signature[8];
+			int len, fd = open(path, O_RDONLY);
+			if (fd < 0)
+				continue;
+			len = read_in_full(fd, signature, 8);
+			close(fd);
+			if (len != 8 || strncmp(signature, "gitdir: ", 8))
+				continue;
+			path = read_gitfile(path);
+			if (path) {
+				*is_bundle = 0;
+				return xstrdup(absolute_path(path));
+			}
 		}
 	}