get_sha1(): fix error status regression

diff --git a/path.c b/path.c
index 6f3f5d56c0ed76f50d1aa37646d18ae280f1edbb..b6f71d1086981dc41bdbbc8954eccd9e9b719f98 100644 (file)
--- a/path.c
+++ b/path.c
@@ -283,7 +283,7 @@ char *expand_user_path(const char *path)
  * links.  User relative paths are also returned as they are given,
  * except DWIM suffixing.
  */
-char *enter_repo(char *path, int strict)
+const char *enter_repo(const char *path, int strict)
 {
        static char used_path[PATH_MAX];
        static char validated_path[PATH_MAX];
@@ -295,16 +295,19 @@ char *enter_repo(char *path, int strict)
                static const char *suffix[] = {
                        ".git/.git", "/.git", ".git", "", NULL,
                };
+               const char *gitfile;
                int len = strlen(path);
                int i;
-               while ((1 < len) && (path[len-1] == '/')) {
-                       path[len-1] = 0;
+               while ((1 < len) && (path[len-1] == '/'))
                        len--;
-               }
+
                if (PATH_MAX <= len)
                        return NULL;
-               if (path[0] == '~') {
-                       char *newpath = expand_user_path(path);
+               strncpy(used_path, path, len); used_path[len] = 0 ;
+               strcpy(validated_path, used_path);
+
+               if (used_path[0] == '~') {
+                       char *newpath = expand_user_path(used_path);
                        if (!newpath || (PATH_MAX - 10 < strlen(newpath))) {
                                free(newpath);
                                return NULL;
@@ -316,24 +319,23 @@ char *enter_repo(char *path, int strict)
                         * anyway.
                         */
                        strcpy(used_path, newpath); free(newpath);
-                       strcpy(validated_path, path);
-                       path = used_path;
                }
                else if (PATH_MAX - 10 < len)
                        return NULL;
-               else {
-                       path = strcpy(used_path, path);
-                       strcpy(validated_path, path);
-               }
-               len = strlen(path);
+               len = strlen(used_path);
                for (i = 0; suffix[i]; i++) {
-                       strcpy(path + len, suffix[i]);
-                       if (!access(path, F_OK)) {
+                       strcpy(used_path + len, suffix[i]);
+                       if (!access(used_path, F_OK)) {
                                strcat(validated_path, suffix[i]);
                                break;
                        }
                }
-               if (!suffix[i] || chdir(path))
+               if (!suffix[i])
+                       return NULL;
+               gitfile = read_gitfile(used_path) ;
+               if (gitfile)
+                       strcpy(used_path, gitfile);
+               if (chdir(used_path))
                        return NULL;
                path = validated_path;
        }