Merge branch 'lt/diffgen' into next

[git.git] / refs.c

diff --git a/refs.c b/refs.c
index 7a2c56e..03398cc 100644 (file)
--- a/refs.c
+++ b/refs.c
@@ -6,10 +6,6 @@
 /* We allow "recursive" symbolic refs. Only within reason, though */
 #define MAXDEPTH 5
 
-#ifndef USE_SYMLINK_HEAD
-#define USE_SYMLINK_HEAD 1
-#endif
-
 const char *resolve_ref(const char *path, unsigned char *sha1, int reading)
 {
        int depth = MAXDEPTH, len;
@@ -80,7 +76,7 @@ int create_symref(const char *git_HEAD, const char *refs_heads_master)
        char ref[1000];
        int fd, len, written;
 
-#if USE_SYMLINK_HEAD
+#ifdef USE_SYMLINK_HEAD
        if (!only_use_symrefs) {
                unlink(git_HEAD);
                if (!symlink(refs_heads_master, git_HEAD))
@@ -155,10 +151,15 @@ static int do_for_each_ref(const char *base, int (*fn)(const char *path, const u
                                        break;
                                continue;
                        }
-                       if (read_ref(git_path("%s", path), sha1) < 0)
+                       if (read_ref(git_path("%s", path), sha1) < 0) {
+                               error("%s points nowhere!", path);
                                continue;
-                       if (!has_sha1_file(sha1))
+                       }
+                       if (!has_sha1_file(sha1)) {
+                               error("%s does not point to a valid "
+                                     "commit object!", path);
                                continue;
+                       }
                        retval = fn(path, sha1);
                        if (retval)
                                break;
@@ -272,7 +273,7 @@ static int write_ref_file(const char *filename,
        char term = '\n';
        if (write(fd, hex, 40) < 40 ||
            write(fd, &term, 1) < 1) {
-               error("Couldn't write %s\n", filename);
+               error("Couldn't write %s", filename);
                close(fd);
                return -1;
        }
@@ -347,14 +348,6 @@ int check_ref_format(const char *ref)
                if (!ch) {
                        if (level < 2)
                                return -1; /* at least of form "heads/blah" */
-
-                       /* Do not allow ref name to end in "HEAD"
-                        * Note that cp is poiting at one past NUL at the end.
-                        * i.e. cp[-1] = NUL.
-                        */
-                       if (5 <= cp - ref && !strcmp(cp - 5, "HEAD"))
-                               return -1;
-
                        return 0;
                }
        }