worktree: fix "add -B"

diff --git a/setup.c b/setup.c
index d34372520b05a2acee36f02ddc2ef68dde4b65fd..0deb02238ba426144e0b7b077c9f2ad5c7993d23 100644 (file)
--- a/setup.c
+++ b/setup.c
@@ -312,6 +312,23 @@ int is_git_directory(const char *suspect)
        return ret;
 }
 
+int is_nonbare_repository_dir(struct strbuf *path)
+{
+       int ret = 0;
+       int gitfile_error;
+       size_t orig_path_len = path->len;
+       assert(orig_path_len != 0);
+       strbuf_complete(path, '/');
+       strbuf_addstr(path, ".git");
+       if (read_gitfile_gently(path->buf, &gitfile_error) || is_git_directory(path->buf))
+               ret = 1;
+       if (gitfile_error == READ_GITFILE_ERR_OPEN_FAILED ||
+           gitfile_error == READ_GITFILE_ERR_READ_FAILED)
+               ret = 1;
+       strbuf_setlen(path, orig_path_len);
+       return ret;
+}
+
 int is_inside_git_dir(void)
 {
        if (inside_git_dir < 0)
@@ -434,17 +451,6 @@ static int check_repository_format_gently(const char *gitdir, int *nongit_ok)
        return ret;
 }
 
-static void update_linked_gitdir(const char *gitfile, const char *gitdir)
-{
-       struct strbuf path = STRBUF_INIT;
-       struct stat st;
-
-       strbuf_addf(&path, "%s/gitdir", gitdir);
-       if (stat(path.buf, &st) || st.st_mtime + 24 * 3600 < time(NULL))
-               write_file(path.buf, "%s", gitfile);
-       strbuf_release(&path);
-}
-
 /*
  * Try to read the location of the git directory from the .git file,
  * return path to git directory if found.
@@ -514,7 +520,6 @@ const char *read_gitfile_gently(const char *path, int *return_error_code)
                error_code = READ_GITFILE_ERR_NOT_A_REPO;
                goto cleanup_return;
        }
-       update_linked_gitdir(path, dir);
        path = real_path(dir);
 
 cleanup_return: