git-filter-branch.sh: more portable tr usage: use \012, not \n.

[git.git] / refs.c

diff --git a/refs.c b/refs.c
index 07e260c8a15c9118ee829964aed65b209900dc36..759924d0c93621d72918f29145ae0377f34e8e0c 100644 (file)
--- a/refs.c
+++ b/refs.c
@@ -2,6 +2,7 @@
 #include "refs.h"
 #include "object.h"
 #include "tag.h"
+#include "dir.h"
 
 /* ISSYMREF=01 and ISPACKED=02 are public interfaces */
 #define REF_KNOWS_PEELED 04
@@ -579,18 +580,6 @@ int for_each_remote_ref(each_ref_fn fn, void *cb_data)
        return do_for_each_ref("refs/remotes/", fn, 13, cb_data);
 }
 
-/* NEEDSWORK: This is only used by ssh-upload and it should go; the
- * caller should do resolve_ref or read_ref like everybody else.  Or
- * maybe everybody else should use get_ref_sha1() instead of doing
- * read_ref().
- */
-int get_ref_sha1(const char *ref, unsigned char *sha1)
-{
-       if (check_ref_format(ref))
-               return -1;
-       return read_ref(mkpath("refs/%s", ref), sha1);
-}
-
 /*
  * Make sure "ref" is something reasonable to have under ".git/refs/";
  * We do not like it if:
@@ -654,6 +643,37 @@ int check_ref_format(const char *ref)
        }
 }
 
+const char *ref_rev_parse_rules[] = {
+       "%.*s",
+       "refs/%.*s",
+       "refs/tags/%.*s",
+       "refs/heads/%.*s",
+       "refs/remotes/%.*s",
+       "refs/remotes/%.*s/HEAD",
+       NULL
+};
+
+const char *ref_fetch_rules[] = {
+       "%.*s",
+       "refs/%.*s",
+       "refs/heads/%.*s",
+       NULL
+};
+
+int refname_match(const char *abbrev_name, const char *full_name, const char **rules)
+{
+       const char **p;
+       const int abbrev_name_len = strlen(abbrev_name);
+
+       for (p = rules; *p; p++) {
+               if (!strcmp(full_name, mkpath(*p, abbrev_name_len, abbrev_name))) {
+                       return 1;
+               }
+       }
+
+       return 0;
+}
+
 static struct ref_lock *verify_lock(struct ref_lock *lock,
        const unsigned char *old_sha1, int mustexist)
 {
@@ -671,57 +691,23 @@ static struct ref_lock *verify_lock(struct ref_lock *lock,
        return lock;
 }
 
-static int remove_empty_dir_recursive(char *path, int len)
-{
-       DIR *dir = opendir(path);
-       struct dirent *e;
-       int ret = 0;
-
-       if (!dir)
-               return -1;
-       if (path[len-1] != '/')
-               path[len++] = '/';
-       while ((e = readdir(dir)) != NULL) {
-               struct stat st;
-               int namlen;
-               if ((e->d_name[0] == '.') &&
-                   ((e->d_name[1] == 0) ||
-                    ((e->d_name[1] == '.') && e->d_name[2] == 0)))
-                       continue; /* "." and ".." */
-
-               namlen = strlen(e->d_name);
-               if ((len + namlen < PATH_MAX) &&
-                   strcpy(path + len, e->d_name) &&
-                   !lstat(path, &st) &&
-                   S_ISDIR(st.st_mode) &&
-                   !remove_empty_dir_recursive(path, len + namlen))
-                       continue; /* happy */
-
-               /* path too long, stat fails, or non-directory still exists */
-               ret = -1;
-               break;
-       }
-       closedir(dir);
-       if (!ret) {
-               path[len] = 0;
-               ret = rmdir(path);
-       }
-       return ret;
-}
-
-static int remove_empty_directories(char *file)
+static int remove_empty_directories(const char *file)
 {
        /* we want to create a file but there is a directory there;
         * if that is an empty directory (or a directory that contains
         * only empty directories), remove them.
         */
-       char path[PATH_MAX];
-       int len = strlen(file);
+       struct strbuf path;
+       int result;
 
-       if (len >= PATH_MAX) /* path too long ;-) */
-               return -1;
-       strcpy(path, file);
-       return remove_empty_dir_recursive(path, len);
+       strbuf_init(&path, 20);
+       strbuf_addstr(&path, file);
+
+       result = remove_dir_recursively(&path, 1);
+
+       strbuf_release(&path);
+
+       return result;
 }
 
 static int is_refname_available(const char *ref, const char *oldref,
@@ -1108,7 +1094,7 @@ static int log_ref_write(const char *ref_name, const unsigned char *old_sha1,
        adjust_shared_perm(log_file);
 
        msglen = msg ? strlen(msg) : 0;
-       committer = git_committer_info(-1);
+       committer = git_committer_info(0);
        maxlen = strlen(committer) + msglen + 100;
        logrec = xmalloc(maxlen);
        len = sprintf(logrec, "%s %s %s\n",
@@ -1478,3 +1464,11 @@ int update_ref(const char *action, const char *refname,
        }
        return 0;
 }
+
+struct ref *find_ref_by_name(struct ref *list, const char *name)
+{
+       for ( ; list; list = list->next)
+               if (!strcmp(list->name, name))
+                       return list;
+       return NULL;
+}