[PATCH] Rework fsck-cache to use parse_object()

With support for parse_object() and tags in the core, fsck_cache can just
call them, and can be simplified a bit.

Signed-Off-By: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/fsck-cache.c b/fsck-cache.c
index f9b1431dd8f4f3b426a7e410de952277aaa11401..280a104050b665515418c00c33af8e6b0b0e2101 100644 (file)
--- a/fsck-cache.c
+++ b/fsck-cache.c
@@ -6,6 +6,7 @@
 #include "commit.h"
 #include "tree.h"
 #include "blob.h"
+#include "tag.h"
 
 #define REACHABLE 0x0001
 
@@ -21,6 +22,7 @@ static void check_connectivity(void)
        /* Look up all the requirements, warn about missing objects.. */
        for (i = 0; i < nr_objs; i++) {
                struct object *obj = objs[i];
+               struct object_list *refs;
 
                if (show_unreachable && !(obj->flags & REACHABLE)) {
                        printf("unreachable %s %s\n", obj->type, sha1_to_hex(obj->sha1));
@@ -35,101 +37,49 @@ static void check_connectivity(void)
                        printf("dangling %s %s\n", obj->type, 
                               sha1_to_hex(obj->sha1));
                }
+               for (refs = obj->refs; refs; refs = refs->next) {
+                       if (!refs->item->parsed) {
+                               printf("broken link from %s\n",
+                                      sha1_to_hex(obj->sha1));
+                               printf("              to %s\n",
+                                      sha1_to_hex(refs->item->sha1));
+                       }
+               }
        }
 }
 
-static int fsck_tree(unsigned char *sha1, void *data, unsigned long size)
+static int fsck_tree(struct tree *item)
 {
-       struct tree *item = lookup_tree(sha1);
-       if (parse_tree(item))
-               return -1;
        if (item->has_full_path) {
                fprintf(stderr, "warning: fsck-cache: tree %s "
-                       "has full pathnames in it\n", sha1_to_hex(sha1));
+                       "has full pathnames in it\n", 
+                       sha1_to_hex(item->object.sha1));
        }
        return 0;
 }
 
-static int fsck_commit(unsigned char *sha1, void *data, unsigned long size)
+static int fsck_commit(struct commit *commit)
 {
-       struct commit *commit = lookup_commit(sha1);
-       if (parse_commit(commit))
-               return -1;
        if (!commit->tree)
                return -1;
        if (!commit->parents && show_root)
-               printf("root %s\n", sha1_to_hex(sha1));
+               printf("root %s\n", sha1_to_hex(commit->object.sha1));
        if (!commit->date)
-               printf("bad commit date in %s\n", sha1_to_hex(sha1));
-       return 0;
-}
-
-static int fsck_blob(unsigned char *sha1, void *data, unsigned long size)
-{
-       struct blob *blob = lookup_blob(sha1);
-       blob->object.parsed = 1;
+               printf("bad commit date in %s\n", 
+                      sha1_to_hex(commit->object.sha1));
        return 0;
 }
 
-static int fsck_tag(unsigned char *sha1, void *data, unsigned long size)
+static int fsck_tag(struct tag *tag)
 {
-       int typelen, taglen;
-       unsigned char object[20];
-       char object_hex[60];
-       const char *type_line, *tag_line, *sig_line;
-
-       if (size < 64)
-               return -1;
-       if (memcmp("object ", data, 7) || get_sha1_hex(data + 7, object))
-               return -1;
-
-       type_line = data + 48;
-       if (memcmp("\ntype ", type_line-1, 6))
-               return -1;
-
-       tag_line = strchr(type_line, '\n');
-       if (!tag_line || memcmp("tag ", ++tag_line, 4))
-               return -1;
-
-       sig_line = strchr(tag_line, '\n');
-       if (!sig_line)
-               return -1;
-       sig_line++;
-
-       typelen = tag_line - type_line - strlen("type \n");
-       if (typelen >= 20)
-               return -1;
-       taglen = sig_line - tag_line - strlen("tag \n");
-
        if (!show_tags)
                return 0;
 
-       strcpy(object_hex, sha1_to_hex(object));
-       printf("tagged %.*s %s (%.*s) in %s\n",
-               typelen, type_line + 5,
-               object_hex,
-               taglen, tag_line + 4,
-               sha1_to_hex(sha1));
-       return 0;
-}
-
-static int fsck_entry(unsigned char *sha1, char *tag, void *data, 
-                     unsigned long size)
-{
-       if (!strcmp(tag, "blob")) {
-               if (fsck_blob(sha1, data, size) < 0)
-                       return -1;
-       } else if (!strcmp(tag, "tree")) {
-               if (fsck_tree(sha1, data, size) < 0)
-                       return -1;
-       } else if (!strcmp(tag, "commit")) {
-               if (fsck_commit(sha1, data, size) < 0)
-                       return -1;
-       } else if (!strcmp(tag, "tag")) {
-               if (fsck_tag(sha1, data, size) < 0)
-                       return -1;
-       } else
-               return -1;
+       printf("tagged %s %s",
+              tag->tagged->type,
+              sha1_to_hex(tag->tagged->sha1));
+       printf(" (%s) in %s\n",
+              tag->tag, sha1_to_hex(tag->object.sha1));
        return 0;
 }
 
@@ -137,20 +87,17 @@ static int fsck_name(char *hex)
 {
        unsigned char sha1[20];
        if (!get_sha1_hex(hex, sha1)) {
-               unsigned long mapsize;
-               void *map = map_sha1_file(sha1, &mapsize);
-               if (map) {
-                       char type[100];
-                       unsigned long size;
-                       void *buffer = unpack_sha1_file(map, mapsize, type, &size);
-                       if (!buffer)
-                               return -1;
-                       if (check_sha1_signature(sha1, buffer, size, type) < 0)
-                               printf("sha1 mismatch %s\n", sha1_to_hex(sha1));
-                       munmap(map, mapsize);
-                       if (!fsck_entry(sha1, type, buffer, size))
-                               return 0;
-               }
+               struct object *obj = parse_object(sha1);
+               if (!obj)
+                       return -1;
+               if (obj->type == blob_type)
+                       return 0;
+               if (obj->type == tree_type)
+                       return fsck_tree((struct tree *) obj);
+               if (obj->type == commit_type)
+                       return fsck_commit((struct commit *) obj);
+               if (obj->type == tag_type)
+                       return fsck_tag((struct tag *) obj);
        }
        return -1;
 }