help: Do not unnecessarily look for a repository

diff --git a/refs.c b/refs.c
index 3da3c8cefcbe123485fb5a68f2406488275ce43b..808f56bb27b6ece616f400154fe98c9cef12f8ba 100644 (file)
--- a/refs.c
+++ b/refs.c
@@ -668,6 +668,11 @@ int for_each_remote_ref(each_ref_fn fn, void *cb_data)
        return for_each_ref_in("refs/remotes/", fn, cb_data);
 }
 
+int for_each_replace_ref(each_ref_fn fn, void *cb_data)
+{
+       return do_for_each_ref("refs/replace/", fn, 13, 0, cb_data);
+}
+
 int for_each_rawref(each_ref_fn fn, void *cb_data)
 {
        return do_for_each_ref("refs/", fn, 0,
@@ -683,12 +688,13 @@ int for_each_rawref(each_ref_fn fn, void *cb_data)
  * - it has ASCII control character, "~", "^", ":" or SP, anywhere, or
  * - it ends with a "/".
  * - it ends with ".lock"
+ * - it contains a "\" (backslash)
  */
 
 static inline int bad_ref_char(int ch)
 {
        if (((unsigned) ch) <= ' ' ||
-           ch == '~' || ch == '^' || ch == ':')
+           ch == '~' || ch == '^' || ch == ':' || ch == '\\')
                return 1;
        /* 2.13 Pattern Matching Notation */
        if (ch == '?' || ch == '[') /* Unsupported */
@@ -751,9 +757,8 @@ int check_ref_format(const char *ref)
        }
 }
 
-const char *prettify_ref(const struct ref *ref)
+const char *prettify_refname(const char *name)
 {
-       const char *name = ref->name;
        return name + (
                !prefixcmp(name, "refs/heads/") ? 11 :
                !prefixcmp(name, "refs/tags/") ? 10 :
@@ -821,7 +826,7 @@ static int remove_empty_directories(const char *file)
        strbuf_init(&path, 20);
        strbuf_addstr(&path, file);
 
-       result = remove_dir_recursively(&path, 1);
+       result = remove_dir_recursively(&path, REMOVE_DIR_EMPTY_ONLY);
 
        strbuf_release(&path);
 
@@ -967,8 +972,10 @@ static int repack_without_ref(const char *refname)
        if (!found)
                return 0;
        fd = hold_lock_file_for_update(&packlock, git_path("packed-refs"), 0);
-       if (fd < 0)
+       if (fd < 0) {
+               unable_to_lock_error(git_path("packed-refs"), errno);
                return error("cannot delete '%s' from packed refs", refname);
+       }
 
        for (list = packed_ref_list; list; list = list->next) {
                char line[PATH_MAX + 100];
@@ -1419,7 +1426,7 @@ int read_ref_at(const char *ref, unsigned long at_time, int cnt, unsigned char *
        logfile = git_path("logs/%s", ref);
        logfd = open(logfile, O_RDONLY, 0);
        if (logfd < 0)
-               die("Unable to read log %s: %s", logfile, strerror(errno));
+               die_errno("Unable to read log '%s'", logfile);
        fstat(logfd, &st);
        if (!st.st_size)
                die("Log %s is empty.", logfile);