diff -M: release the preimage candidate blobs after rename detection.

[git.git] / builtin-fsck.c

diff --git a/builtin-fsck.c b/builtin-fsck.c
index 4d8b66c344422dd60c72c72bbfbc5aa87be7907e..44ce629a498f986f239e008a61d32e10968907e0 100644 (file)
--- a/builtin-fsck.c
+++ b/builtin-fsck.c
@@ -219,6 +219,7 @@ static int fsck_tree(struct tree *item)
 {
        int retval;
        int has_full_path = 0;
+       int has_empty_name = 0;
        int has_zero_pad = 0;
        int has_bad_modes = 0;
        int has_dup_entries = 0;
@@ -242,6 +243,8 @@ static int fsck_tree(struct tree *item)
 
                if (strchr(name, '/'))
                        has_full_path = 1;
+               if (!*name)
+                       has_empty_name = 1;
                has_zero_pad |= *(char *)desc.buffer == '0';
                update_tree_entry(&desc);
 
@@ -253,6 +256,7 @@ static int fsck_tree(struct tree *item)
                case S_IFREG | 0644:
                case S_IFLNK:
                case S_IFDIR:
+               case S_IFDIRLNK:
                        break;
                /*
                 * This is nonstandard, but we had a few of these
@@ -290,6 +294,9 @@ static int fsck_tree(struct tree *item)
        if (has_full_path) {
                objwarning(&item->object, "contains full pathnames");
        }
+       if (has_empty_name) {
+               objwarning(&item->object, "contains empty pathname");
+       }
        if (has_zero_pad) {
                objwarning(&item->object, "contains zero-padded file modes");
        }
@@ -534,7 +541,7 @@ static void get_default_heads(void)
         * "show_unreachable" flag.
         */
        if (!default_refs) {
-               error("No default references");
+               fprintf(stderr, "notice: No default references\n");
                show_unreachable = 0;
        }
 }
@@ -554,15 +561,23 @@ static int fsck_head_link(void)
 {
        unsigned char sha1[20];
        int flag;
-       const char *head_points_at = resolve_ref("HEAD", sha1, 1, &flag);
-
-       if (!head_points_at || !(flag & REF_ISSYMREF))
-               return error("HEAD is not a symbolic ref");
-       if (prefixcmp(head_points_at, "refs/heads/"))
+       int null_is_error = 0;
+       const char *head_points_at = resolve_ref("HEAD", sha1, 0, &flag);
+
+       if (!head_points_at)
+               return error("Invalid HEAD");
+       if (!strcmp(head_points_at, "HEAD"))
+               /* detached HEAD */
+               null_is_error = 1;
+       else if (prefixcmp(head_points_at, "refs/heads/"))
                return error("HEAD points to something strange (%s)",
                             head_points_at);
-       if (is_null_sha1(sha1))
-               return error("HEAD: not a valid git pointer");
+       if (is_null_sha1(sha1)) {
+               if (null_is_error)
+                       return error("HEAD: detached HEAD points at nothing");
+               fprintf(stderr, "notice: HEAD points to an unborn branch (%s)\n",
+                       head_points_at + 11);
+       }
        return 0;
 }
 
@@ -653,7 +668,7 @@ int cmd_fsck(int argc, char **argv, const char *prefix)
                        verify_pack(p, 0);
 
                for (p = packed_git; p; p = p->next) {
-                       uint32_t i, num = num_packed_objects(p);
+                       uint32_t i, num = p->num_objects;
                        for (i = 0; i < num; i++)
                                fsck_sha1(nth_packed_object_sha1(p, i));
                }
@@ -695,8 +710,14 @@ int cmd_fsck(int argc, char **argv, const char *prefix)
                int i;
                read_cache();
                for (i = 0; i < active_nr; i++) {
-                       struct blob *blob = lookup_blob(active_cache[i]->sha1);
+                       unsigned int mode;
+                       struct blob *blob;
                        struct object *obj;
+
+                       mode = ntohl(active_cache[i]->ce_mode);
+                       if (S_ISDIRLNK(mode))
+                               continue;
+                       blob = lookup_blob(active_cache[i]->sha1);
                        if (!blob)
                                continue;
                        obj = &blob->object;