10 #define REACHABLE 0x0001
12 static int show_unreachable = 0;
13 static unsigned char head_sha1[20];
15 static void check_connectivity(void)
19 /* Look up all the requirements, warn about missing objects.. */
20 for (i = 0; i < nr_objs; i++) {
21 struct object *obj = objs[i];
23 if (show_unreachable && !(obj->flags & REACHABLE)) {
24 printf("unreachable %s %s\n", obj->type, sha1_to_hex(obj->sha1));
29 printf("missing %s %s\n", obj->type,
30 sha1_to_hex(obj->sha1));
33 printf("dangling %s %s\n", obj->type,
34 sha1_to_hex(obj->sha1));
39 static int fsck_tree(unsigned char *sha1, void *data, unsigned long size)
41 struct tree *item = lookup_tree(sha1);
44 if (item->has_full_path) {
45 fprintf(stderr, "warning: fsck-cache: tree %s "
46 "has full pathnames in it\n", sha1_to_hex(sha1));
51 static int fsck_commit(unsigned char *sha1, void *data, unsigned long size)
53 struct commit *commit = lookup_commit(sha1);
54 if (parse_commit(commit))
59 printf("root %s\n", sha1_to_hex(sha1));
63 static int fsck_entry(unsigned char *sha1, char *tag, void *data,
66 if (!strcmp(tag, "blob")) {
67 lookup_blob(sha1); /* Nothing to check; but notice it. */
68 } else if (!strcmp(tag, "tree")) {
69 if (fsck_tree(sha1, data, size) < 0)
71 } else if (!strcmp(tag, "commit")) {
72 if (fsck_commit(sha1, data, size) < 0)
79 static int fsck_name(char *hex)
81 unsigned char sha1[20];
82 if (!get_sha1_hex(hex, sha1)) {
83 unsigned long mapsize;
84 void *map = map_sha1_file(sha1, &mapsize);
89 if (!check_sha1_signature(sha1, map, mapsize))
90 buffer = unpack_sha1_file(map, mapsize, type,
93 if (buffer && !fsck_entry(sha1, type, buffer, size))
100 static int fsck_dir(int i, char *path)
102 DIR *dir = opendir(path);
106 return error("missing sha1 directory '%s'", path);
109 while ((de = readdir(dir)) != NULL) {
111 int len = strlen(de->d_name);
115 if (de->d_name[1] != '.')
118 if (de->d_name[0] != '.')
122 sprintf(name, "%02x", i);
123 memcpy(name+2, de->d_name, len+1);
124 if (!fsck_name(name))
127 fprintf(stderr, "bad sha1 file: %s/%s\n", path, de->d_name);
133 int main(int argc, char **argv)
138 sha1_dir = getenv(DB_ENVIRONMENT) ? : DEFAULT_DB_ENVIRONMENT;
139 for (i = 0; i < 256; i++) {
140 static char dir[4096];
141 sprintf(dir, "%s/%02x", sha1_dir, i);
146 for (i = 1; i < argc; i++) {
147 if (!strcmp(argv[i], "--unreachable")) {
148 show_unreachable = 1;
151 if (!get_sha1_hex(argv[i], head_sha1)) {
152 struct object *obj = &lookup_commit(head_sha1)->object;
154 mark_reachable(obj, REACHABLE);
158 error("fsck-cache [[--unreachable] <head-sha1>*]");
162 if (show_unreachable) {
163 fprintf(stderr, "unable to do reachability without a head\n");
164 show_unreachable = 0;
166 fprintf(stderr, "expect dangling commits - potential heads - due to lack of head information\n");
169 check_connectivity();