2 #include "object-store.h"
3 #include "repository.h"
13 #include "sha1-array.h"
17 #include "submodule-config.h"
21 static struct oidset gitmodules_found = OIDSET_INIT;
22 static struct oidset gitmodules_done = OIDSET_INIT;
27 #define FOREACH_MSG_ID(FUNC) \
29 FUNC(NUL_IN_HEADER, FATAL) \
30 FUNC(UNTERMINATED_HEADER, FATAL) \
32 FUNC(BAD_DATE, ERROR) \
33 FUNC(BAD_DATE_OVERFLOW, ERROR) \
34 FUNC(BAD_EMAIL, ERROR) \
35 FUNC(BAD_NAME, ERROR) \
36 FUNC(BAD_OBJECT_SHA1, ERROR) \
37 FUNC(BAD_PARENT_SHA1, ERROR) \
38 FUNC(BAD_TAG_OBJECT, ERROR) \
39 FUNC(BAD_TIMEZONE, ERROR) \
40 FUNC(BAD_TREE, ERROR) \
41 FUNC(BAD_TREE_SHA1, ERROR) \
42 FUNC(BAD_TYPE, ERROR) \
43 FUNC(DUPLICATE_ENTRIES, ERROR) \
44 FUNC(MISSING_AUTHOR, ERROR) \
45 FUNC(MISSING_COMMITTER, ERROR) \
46 FUNC(MISSING_EMAIL, ERROR) \
47 FUNC(MISSING_GRAFT, ERROR) \
48 FUNC(MISSING_NAME_BEFORE_EMAIL, ERROR) \
49 FUNC(MISSING_OBJECT, ERROR) \
50 FUNC(MISSING_PARENT, ERROR) \
51 FUNC(MISSING_SPACE_BEFORE_DATE, ERROR) \
52 FUNC(MISSING_SPACE_BEFORE_EMAIL, ERROR) \
53 FUNC(MISSING_TAG, ERROR) \
54 FUNC(MISSING_TAG_ENTRY, ERROR) \
55 FUNC(MISSING_TAG_OBJECT, ERROR) \
56 FUNC(MISSING_TREE, ERROR) \
57 FUNC(MISSING_TREE_OBJECT, ERROR) \
58 FUNC(MISSING_TYPE, ERROR) \
59 FUNC(MISSING_TYPE_ENTRY, ERROR) \
60 FUNC(MULTIPLE_AUTHORS, ERROR) \
61 FUNC(TAG_OBJECT_NOT_TAG, ERROR) \
62 FUNC(TREE_NOT_SORTED, ERROR) \
63 FUNC(UNKNOWN_TYPE, ERROR) \
64 FUNC(ZERO_PADDED_DATE, ERROR) \
65 FUNC(GITMODULES_MISSING, ERROR) \
66 FUNC(GITMODULES_BLOB, ERROR) \
67 FUNC(GITMODULES_LARGE, ERROR) \
68 FUNC(GITMODULES_NAME, ERROR) \
69 FUNC(GITMODULES_SYMLINK, ERROR) \
70 FUNC(GITMODULES_URL, ERROR) \
71 FUNC(GITMODULES_PATH, ERROR) \
72 FUNC(GITMODULES_UPDATE, ERROR) \
74 FUNC(BAD_FILEMODE, WARN) \
75 FUNC(EMPTY_NAME, WARN) \
76 FUNC(FULL_PATHNAME, WARN) \
78 FUNC(HAS_DOTDOT, WARN) \
79 FUNC(HAS_DOTGIT, WARN) \
80 FUNC(NULL_SHA1, WARN) \
81 FUNC(ZERO_PADDED_FILEMODE, WARN) \
82 FUNC(NUL_IN_COMMIT, WARN) \
83 /* infos (reported as warnings, but ignored by default) */ \
84 FUNC(GITMODULES_PARSE, INFO) \
85 FUNC(BAD_TAG_NAME, INFO) \
86 FUNC(MISSING_TAGGER_ENTRY, INFO)
88 #define MSG_ID(id, msg_type) FSCK_MSG_##id,
90 FOREACH_MSG_ID(MSG_ID)
96 #define MSG_ID(id, msg_type) { STR(id), NULL, NULL, FSCK_##msg_type },
98 const char *id_string;
99 const char *downcased;
100 const char *camelcased;
102 } msg_id_info[FSCK_MSG_MAX + 1] = {
103 FOREACH_MSG_ID(MSG_ID)
104 { NULL, NULL, NULL, -1 }
108 static void prepare_msg_ids(void)
112 if (msg_id_info[0].downcased)
115 /* convert id_string to lower case, without underscores. */
116 for (i = 0; i < FSCK_MSG_MAX; i++) {
117 const char *p = msg_id_info[i].id_string;
119 char *q = xmalloc(len);
121 msg_id_info[i].downcased = q;
126 *(q)++ = tolower(*(p)++);
129 p = msg_id_info[i].id_string;
131 msg_id_info[i].camelcased = q;
138 *q++ = tolower(*p++);
145 static int parse_msg_id(const char *text)
151 for (i = 0; i < FSCK_MSG_MAX; i++)
152 if (!strcmp(text, msg_id_info[i].downcased))
158 void list_config_fsck_msg_ids(struct string_list *list, const char *prefix)
164 for (i = 0; i < FSCK_MSG_MAX; i++)
165 list_config_item(list, prefix, msg_id_info[i].camelcased);
168 static int fsck_msg_type(enum fsck_msg_id msg_id,
169 struct fsck_options *options)
173 assert(msg_id >= 0 && msg_id < FSCK_MSG_MAX);
175 if (options->msg_type)
176 msg_type = options->msg_type[msg_id];
178 msg_type = msg_id_info[msg_id].msg_type;
179 if (options->strict && msg_type == FSCK_WARN)
180 msg_type = FSCK_ERROR;
186 static void init_skiplist(struct fsck_options *options, const char *path)
188 static struct oid_array skiplist = OID_ARRAY_INIT;
190 char buffer[GIT_MAX_HEXSZ + 1];
191 struct object_id oid;
193 if (options->skiplist)
194 sorted = options->skiplist->sorted;
197 options->skiplist = &skiplist;
200 fd = open(path, O_RDONLY);
202 die("Could not open skip list: %s", path);
205 int result = read_in_full(fd, buffer, sizeof(buffer));
207 die_errno("Could not read '%s'", path);
210 if (parse_oid_hex(buffer, &oid, &p) || *p != '\n')
211 die("Invalid SHA-1: %s", buffer);
212 oid_array_append(&skiplist, &oid);
213 if (sorted && skiplist.nr > 1 &&
214 oidcmp(&skiplist.oid[skiplist.nr - 2],
224 static int parse_msg_type(const char *str)
226 if (!strcmp(str, "error"))
228 else if (!strcmp(str, "warn"))
230 else if (!strcmp(str, "ignore"))
233 die("Unknown fsck message type: '%s'", str);
236 int is_valid_msg_type(const char *msg_id, const char *msg_type)
238 if (parse_msg_id(msg_id) < 0)
240 parse_msg_type(msg_type);
244 void fsck_set_msg_type(struct fsck_options *options,
245 const char *msg_id, const char *msg_type)
247 int id = parse_msg_id(msg_id), type;
250 die("Unhandled message id: %s", msg_id);
251 type = parse_msg_type(msg_type);
253 if (type != FSCK_ERROR && msg_id_info[id].msg_type == FSCK_FATAL)
254 die("Cannot demote %s to %s", msg_id, msg_type);
256 if (!options->msg_type) {
259 ALLOC_ARRAY(msg_type, FSCK_MSG_MAX);
260 for (i = 0; i < FSCK_MSG_MAX; i++)
261 msg_type[i] = fsck_msg_type(i, options);
262 options->msg_type = msg_type;
265 options->msg_type[id] = type;
268 void fsck_set_msg_types(struct fsck_options *options, const char *values)
270 char *buf = xstrdup(values), *to_free = buf;
274 int len = strcspn(buf, " ,|"), equal;
284 equal < len && buf[equal] != '=' && buf[equal] != ':';
286 buf[equal] = tolower(buf[equal]);
289 if (!strcmp(buf, "skiplist")) {
291 die("skiplist requires a path");
292 init_skiplist(options, buf + equal + 1);
298 die("Missing '=': '%s'", buf);
300 fsck_set_msg_type(options, buf, buf + equal + 1);
306 static void append_msg_id(struct strbuf *sb, const char *msg_id)
309 char c = *(msg_id)++;
314 strbuf_addch(sb, tolower(c));
317 strbuf_addch(sb, *(msg_id)++);
321 strbuf_addstr(sb, ": ");
324 static int object_on_skiplist(struct fsck_options *opts, struct object *obj)
326 if (opts && opts->skiplist && obj)
327 return oid_array_lookup(opts->skiplist, &obj->oid) >= 0;
331 __attribute__((format (printf, 4, 5)))
332 static int report(struct fsck_options *options, struct object *object,
333 enum fsck_msg_id id, const char *fmt, ...)
336 struct strbuf sb = STRBUF_INIT;
337 int msg_type = fsck_msg_type(id, options), result;
339 if (msg_type == FSCK_IGNORE)
342 if (object_on_skiplist(options, object))
345 if (msg_type == FSCK_FATAL)
346 msg_type = FSCK_ERROR;
347 else if (msg_type == FSCK_INFO)
348 msg_type = FSCK_WARN;
350 append_msg_id(&sb, msg_id_info[id].id_string);
353 strbuf_vaddf(&sb, fmt, ap);
354 result = options->error_func(options, object, msg_type, sb.buf);
361 static char *get_object_name(struct fsck_options *options, struct object *obj)
363 if (!options->object_names)
365 return lookup_decoration(options->object_names, obj);
368 static void put_object_name(struct fsck_options *options, struct object *obj,
369 const char *fmt, ...)
372 struct strbuf buf = STRBUF_INIT;
375 if (!options->object_names)
377 existing = lookup_decoration(options->object_names, obj);
381 strbuf_vaddf(&buf, fmt, ap);
382 add_decoration(options->object_names, obj, strbuf_detach(&buf, NULL));
386 static const char *describe_object(struct fsck_options *o, struct object *obj)
388 static struct strbuf buf = STRBUF_INIT;
392 strbuf_addstr(&buf, oid_to_hex(&obj->oid));
393 if (o->object_names && (name = lookup_decoration(o->object_names, obj)))
394 strbuf_addf(&buf, " (%s)", name);
399 static int fsck_walk_tree(struct tree *tree, void *data, struct fsck_options *options)
401 struct tree_desc desc;
402 struct name_entry entry;
406 if (parse_tree(tree))
409 name = get_object_name(options, &tree->object);
410 if (init_tree_desc_gently(&desc, tree->buffer, tree->size))
412 while (tree_entry_gently(&desc, &entry)) {
416 if (S_ISGITLINK(entry.mode))
419 if (S_ISDIR(entry.mode)) {
420 obj = (struct object *)lookup_tree(the_repository, entry.oid);
422 put_object_name(options, obj, "%s%s/", name,
424 result = options->walk(obj, OBJ_TREE, data, options);
426 else if (S_ISREG(entry.mode) || S_ISLNK(entry.mode)) {
427 obj = (struct object *)lookup_blob(the_repository, entry.oid);
429 put_object_name(options, obj, "%s%s", name,
431 result = options->walk(obj, OBJ_BLOB, data, options);
434 result = error("in tree %s: entry %s has bad mode %.6o",
435 describe_object(options, &tree->object), entry.path, entry.mode);
445 static int fsck_walk_commit(struct commit *commit, void *data, struct fsck_options *options)
447 int counter = 0, generation = 0, name_prefix_len = 0;
448 struct commit_list *parents;
453 if (parse_commit(commit))
456 name = get_object_name(options, &commit->object);
458 put_object_name(options, &get_commit_tree(commit)->object,
461 result = options->walk((struct object *)get_commit_tree(commit),
462 OBJ_TREE, data, options);
467 parents = commit->parents;
468 if (name && parents) {
469 int len = strlen(name), power;
471 if (len && name[len - 1] == '^') {
473 name_prefix_len = len - 1;
475 else { /* parse ~<generation> suffix */
476 for (generation = 0, power = 1;
477 len && isdigit(name[len - 1]);
479 generation += power * (name[--len] - '0');
480 if (power > 1 && len && name[len - 1] == '~')
481 name_prefix_len = len - 1;
487 struct object *obj = &parents->item->object;
490 put_object_name(options, obj, "%s^%d",
492 else if (generation > 0)
493 put_object_name(options, obj, "%.*s~%d",
494 name_prefix_len, name, generation + 1);
496 put_object_name(options, obj, "%s^", name);
498 result = options->walk((struct object *)parents->item, OBJ_COMMIT, data, options);
503 parents = parents->next;
508 static int fsck_walk_tag(struct tag *tag, void *data, struct fsck_options *options)
510 char *name = get_object_name(options, &tag->object);
515 put_object_name(options, tag->tagged, "%s", name);
516 return options->walk(tag->tagged, OBJ_ANY, data, options);
519 int fsck_walk(struct object *obj, void *data, struct fsck_options *options)
524 if (obj->type == OBJ_NONE)
525 parse_object(the_repository, &obj->oid);
531 return fsck_walk_tree((struct tree *)obj, data, options);
533 return fsck_walk_commit((struct commit *)obj, data, options);
535 return fsck_walk_tag((struct tag *)obj, data, options);
537 error("Unknown object type for %s", describe_object(options, obj));
543 * The entries in a tree are ordered in the _path_ order,
544 * which means that a directory entry is ordered by adding
545 * a slash to the end of it.
547 * So a directory called "a" is ordered _after_ a file
548 * called "a.c", because "a/" sorts after "a.c".
550 #define TREE_UNORDERED (-1)
551 #define TREE_HAS_DUPS (-2)
553 static int verify_ordered(unsigned mode1, const char *name1, unsigned mode2, const char *name2)
555 int len1 = strlen(name1);
556 int len2 = strlen(name2);
557 int len = len1 < len2 ? len1 : len2;
558 unsigned char c1, c2;
561 cmp = memcmp(name1, name2, len);
565 return TREE_UNORDERED;
568 * Ok, the first <len> characters are the same.
569 * Now we need to order the next one, but turn
570 * a '\0' into a '/' for a directory entry.
576 * git-write-tree used to write out a nonsense tree that has
577 * entries with the same name, one blob and one tree. Make
578 * sure we do not have duplicate entries.
580 return TREE_HAS_DUPS;
581 if (!c1 && S_ISDIR(mode1))
583 if (!c2 && S_ISDIR(mode2))
585 return c1 < c2 ? 0 : TREE_UNORDERED;
588 static int fsck_tree(struct tree *item, struct fsck_options *options)
591 int has_null_sha1 = 0;
592 int has_full_path = 0;
593 int has_empty_name = 0;
597 int has_zero_pad = 0;
598 int has_bad_modes = 0;
599 int has_dup_entries = 0;
600 int not_properly_sorted = 0;
601 struct tree_desc desc;
605 if (init_tree_desc_gently(&desc, item->buffer, item->size)) {
606 retval += report(options, &item->object, FSCK_MSG_BAD_TREE, "cannot be parsed as a tree");
615 const char *name, *backslash;
616 const struct object_id *oid;
618 oid = tree_entry_extract(&desc, &name, &mode);
620 has_null_sha1 |= is_null_oid(oid);
621 has_full_path |= !!strchr(name, '/');
622 has_empty_name |= !*name;
623 has_dot |= !strcmp(name, ".");
624 has_dotdot |= !strcmp(name, "..");
625 has_dotgit |= is_hfs_dotgit(name) || is_ntfs_dotgit(name);
626 has_zero_pad |= *(char *)desc.buffer == '0';
628 if (is_hfs_dotgitmodules(name) || is_ntfs_dotgitmodules(name)) {
630 oidset_insert(&gitmodules_found, oid);
632 retval += report(options, &item->object,
633 FSCK_MSG_GITMODULES_SYMLINK,
634 ".gitmodules is a symbolic link");
637 if ((backslash = strchr(name, '\\'))) {
640 has_dotgit |= is_ntfs_dotgit(backslash);
641 if (is_ntfs_dotgitmodules(backslash)) {
643 oidset_insert(&gitmodules_found, oid);
645 retval += report(options, &item->object,
646 FSCK_MSG_GITMODULES_SYMLINK,
647 ".gitmodules is a symbolic link");
649 backslash = strchr(backslash, '\\');
653 if (update_tree_entry_gently(&desc)) {
654 retval += report(options, &item->object, FSCK_MSG_BAD_TREE, "cannot be parsed as a tree");
669 * This is nonstandard, but we had a few of these
670 * early on when we honored the full set of mode
674 if (!options->strict)
682 switch (verify_ordered(o_mode, o_name, mode, name)) {
684 not_properly_sorted = 1;
699 retval += report(options, &item->object, FSCK_MSG_NULL_SHA1, "contains entries pointing to null sha1");
701 retval += report(options, &item->object, FSCK_MSG_FULL_PATHNAME, "contains full pathnames");
703 retval += report(options, &item->object, FSCK_MSG_EMPTY_NAME, "contains empty pathname");
705 retval += report(options, &item->object, FSCK_MSG_HAS_DOT, "contains '.'");
707 retval += report(options, &item->object, FSCK_MSG_HAS_DOTDOT, "contains '..'");
709 retval += report(options, &item->object, FSCK_MSG_HAS_DOTGIT, "contains '.git'");
711 retval += report(options, &item->object, FSCK_MSG_ZERO_PADDED_FILEMODE, "contains zero-padded file modes");
713 retval += report(options, &item->object, FSCK_MSG_BAD_FILEMODE, "contains bad file modes");
715 retval += report(options, &item->object, FSCK_MSG_DUPLICATE_ENTRIES, "contains duplicate file entries");
716 if (not_properly_sorted)
717 retval += report(options, &item->object, FSCK_MSG_TREE_NOT_SORTED, "not properly sorted");
721 static int verify_headers(const void *data, unsigned long size,
722 struct object *obj, struct fsck_options *options)
724 const char *buffer = (const char *)data;
727 for (i = 0; i < size; i++) {
730 return report(options, obj,
731 FSCK_MSG_NUL_IN_HEADER,
732 "unterminated header: NUL at offset %ld", i);
734 if (i + 1 < size && buffer[i + 1] == '\n')
740 * We did not find double-LF that separates the header
741 * and the body. Not having a body is not a crime but
742 * we do want to see the terminating LF for the last header
745 if (size && buffer[size - 1] == '\n')
748 return report(options, obj,
749 FSCK_MSG_UNTERMINATED_HEADER, "unterminated header");
752 static int fsck_ident(const char **ident, struct object *obj, struct fsck_options *options)
754 const char *p = *ident;
757 *ident = strchrnul(*ident, '\n');
762 return report(options, obj, FSCK_MSG_MISSING_NAME_BEFORE_EMAIL, "invalid author/committer line - missing space before email");
763 p += strcspn(p, "<>\n");
765 return report(options, obj, FSCK_MSG_BAD_NAME, "invalid author/committer line - bad name");
767 return report(options, obj, FSCK_MSG_MISSING_EMAIL, "invalid author/committer line - missing email");
769 return report(options, obj, FSCK_MSG_MISSING_SPACE_BEFORE_EMAIL, "invalid author/committer line - missing space before email");
771 p += strcspn(p, "<>\n");
773 return report(options, obj, FSCK_MSG_BAD_EMAIL, "invalid author/committer line - bad email");
776 return report(options, obj, FSCK_MSG_MISSING_SPACE_BEFORE_DATE, "invalid author/committer line - missing space before date");
778 if (*p == '0' && p[1] != ' ')
779 return report(options, obj, FSCK_MSG_ZERO_PADDED_DATE, "invalid author/committer line - zero-padded date");
780 if (date_overflows(parse_timestamp(p, &end, 10)))
781 return report(options, obj, FSCK_MSG_BAD_DATE_OVERFLOW, "invalid author/committer line - date causes integer overflow");
782 if ((end == p || *end != ' '))
783 return report(options, obj, FSCK_MSG_BAD_DATE, "invalid author/committer line - bad date");
785 if ((*p != '+' && *p != '-') ||
791 return report(options, obj, FSCK_MSG_BAD_TIMEZONE, "invalid author/committer line - bad time zone");
796 static int fsck_commit_buffer(struct commit *commit, const char *buffer,
797 unsigned long size, struct fsck_options *options)
799 struct object_id tree_oid, oid;
800 struct commit_graft *graft;
801 unsigned parent_count, parent_line_count = 0, author_count;
803 const char *buffer_begin = buffer;
806 if (verify_headers(buffer, size, &commit->object, options))
809 if (!skip_prefix(buffer, "tree ", &buffer))
810 return report(options, &commit->object, FSCK_MSG_MISSING_TREE, "invalid format - expected 'tree' line");
811 if (parse_oid_hex(buffer, &tree_oid, &p) || *p != '\n') {
812 err = report(options, &commit->object, FSCK_MSG_BAD_TREE_SHA1, "invalid 'tree' line format - bad sha1");
817 while (skip_prefix(buffer, "parent ", &buffer)) {
818 if (parse_oid_hex(buffer, &oid, &p) || *p != '\n') {
819 err = report(options, &commit->object, FSCK_MSG_BAD_PARENT_SHA1, "invalid 'parent' line format - bad sha1");
826 graft = lookup_commit_graft(the_repository, &commit->object.oid);
827 parent_count = commit_list_count(commit->parents);
829 if (graft->nr_parent == -1 && !parent_count)
830 ; /* shallow commit */
831 else if (graft->nr_parent != parent_count) {
832 err = report(options, &commit->object, FSCK_MSG_MISSING_GRAFT, "graft objects missing");
837 if (parent_count != parent_line_count) {
838 err = report(options, &commit->object, FSCK_MSG_MISSING_PARENT, "parent objects missing");
844 while (skip_prefix(buffer, "author ", &buffer)) {
846 err = fsck_ident(&buffer, &commit->object, options);
850 if (author_count < 1)
851 err = report(options, &commit->object, FSCK_MSG_MISSING_AUTHOR, "invalid format - expected 'author' line");
852 else if (author_count > 1)
853 err = report(options, &commit->object, FSCK_MSG_MULTIPLE_AUTHORS, "invalid format - multiple 'author' lines");
856 if (!skip_prefix(buffer, "committer ", &buffer))
857 return report(options, &commit->object, FSCK_MSG_MISSING_COMMITTER, "invalid format - expected 'committer' line");
858 err = fsck_ident(&buffer, &commit->object, options);
861 if (!get_commit_tree(commit)) {
862 err = report(options, &commit->object, FSCK_MSG_BAD_TREE, "could not load commit's tree %s", oid_to_hex(&tree_oid));
866 if (memchr(buffer_begin, '\0', size)) {
867 err = report(options, &commit->object, FSCK_MSG_NUL_IN_COMMIT,
868 "NUL byte in the commit object body");
875 static int fsck_commit(struct commit *commit, const char *data,
876 unsigned long size, struct fsck_options *options)
878 const char *buffer = data ? data : get_commit_buffer(commit, &size);
879 int ret = fsck_commit_buffer(commit, buffer, size, options);
881 unuse_commit_buffer(commit, buffer);
885 static int fsck_tag_buffer(struct tag *tag, const char *data,
886 unsigned long size, struct fsck_options *options)
888 struct object_id oid;
891 char *to_free = NULL, *eol;
892 struct strbuf sb = STRBUF_INIT;
898 enum object_type type;
901 read_object_file(&tag->object.oid, &type, &size);
903 return report(options, &tag->object,
904 FSCK_MSG_MISSING_TAG_OBJECT,
905 "cannot read tag object");
907 if (type != OBJ_TAG) {
908 ret = report(options, &tag->object,
909 FSCK_MSG_TAG_OBJECT_NOT_TAG,
910 "expected tag got %s",
916 ret = verify_headers(buffer, size, &tag->object, options);
920 if (!skip_prefix(buffer, "object ", &buffer)) {
921 ret = report(options, &tag->object, FSCK_MSG_MISSING_OBJECT, "invalid format - expected 'object' line");
924 if (parse_oid_hex(buffer, &oid, &p) || *p != '\n') {
925 ret = report(options, &tag->object, FSCK_MSG_BAD_OBJECT_SHA1, "invalid 'object' line format - bad sha1");
931 if (!skip_prefix(buffer, "type ", &buffer)) {
932 ret = report(options, &tag->object, FSCK_MSG_MISSING_TYPE_ENTRY, "invalid format - expected 'type' line");
935 eol = strchr(buffer, '\n');
937 ret = report(options, &tag->object, FSCK_MSG_MISSING_TYPE, "invalid format - unexpected end after 'type' line");
940 if (type_from_string_gently(buffer, eol - buffer, 1) < 0)
941 ret = report(options, &tag->object, FSCK_MSG_BAD_TYPE, "invalid 'type' value");
946 if (!skip_prefix(buffer, "tag ", &buffer)) {
947 ret = report(options, &tag->object, FSCK_MSG_MISSING_TAG_ENTRY, "invalid format - expected 'tag' line");
950 eol = strchr(buffer, '\n');
952 ret = report(options, &tag->object, FSCK_MSG_MISSING_TAG, "invalid format - unexpected end after 'type' line");
955 strbuf_addf(&sb, "refs/tags/%.*s", (int)(eol - buffer), buffer);
956 if (check_refname_format(sb.buf, 0)) {
957 ret = report(options, &tag->object, FSCK_MSG_BAD_TAG_NAME,
958 "invalid 'tag' name: %.*s",
959 (int)(eol - buffer), buffer);
965 if (!skip_prefix(buffer, "tagger ", &buffer)) {
966 /* early tags do not contain 'tagger' lines; warn only */
967 ret = report(options, &tag->object, FSCK_MSG_MISSING_TAGGER_ENTRY, "invalid format - expected 'tagger' line");
972 ret = fsck_ident(&buffer, &tag->object, options);
980 static int fsck_tag(struct tag *tag, const char *data,
981 unsigned long size, struct fsck_options *options)
983 struct object *tagged = tag->tagged;
986 return report(options, &tag->object, FSCK_MSG_BAD_TAG_OBJECT, "could not load tagged object");
988 return fsck_tag_buffer(tag, data, size, options);
991 struct fsck_gitmodules_data {
993 struct fsck_options *options;
997 static int fsck_gitmodules_fn(const char *var, const char *value, void *vdata)
999 struct fsck_gitmodules_data *data = vdata;
1000 const char *subsection, *key;
1004 if (parse_config_key(var, "submodule", &subsection, &subsection_len, &key) < 0 ||
1008 name = xmemdupz(subsection, subsection_len);
1009 if (check_submodule_name(name) < 0)
1010 data->ret |= report(data->options, data->obj,
1011 FSCK_MSG_GITMODULES_NAME,
1012 "disallowed submodule name: %s",
1014 if (!strcmp(key, "url") && value &&
1015 looks_like_command_line_option(value))
1016 data->ret |= report(data->options, data->obj,
1017 FSCK_MSG_GITMODULES_URL,
1018 "disallowed submodule url: %s",
1020 if (!strcmp(key, "path") && value &&
1021 looks_like_command_line_option(value))
1022 data->ret |= report(data->options, data->obj,
1023 FSCK_MSG_GITMODULES_PATH,
1024 "disallowed submodule path: %s",
1026 if (!strcmp(key, "update") && value &&
1027 parse_submodule_update_type(value) == SM_UPDATE_COMMAND)
1028 data->ret |= report(data->options, data->obj,
1029 FSCK_MSG_GITMODULES_UPDATE,
1030 "disallowed submodule update setting: %s",
1037 static int fsck_blob(struct blob *blob, const char *buf,
1038 unsigned long size, struct fsck_options *options)
1040 struct fsck_gitmodules_data data;
1041 struct config_options config_opts = { 0 };
1043 if (!oidset_contains(&gitmodules_found, &blob->object.oid))
1045 oidset_insert(&gitmodules_done, &blob->object.oid);
1047 if (object_on_skiplist(options, &blob->object))
1052 * A missing buffer here is a sign that the caller found the
1053 * blob too gigantic to load into memory. Let's just consider
1056 return report(options, &blob->object,
1057 FSCK_MSG_GITMODULES_LARGE,
1058 ".gitmodules too large to parse");
1061 data.obj = &blob->object;
1062 data.options = options;
1064 config_opts.error_action = CONFIG_ERROR_SILENT;
1065 if (git_config_from_mem(fsck_gitmodules_fn, CONFIG_ORIGIN_BLOB,
1066 ".gitmodules", buf, size, &data, &config_opts))
1067 data.ret |= report(options, &blob->object,
1068 FSCK_MSG_GITMODULES_PARSE,
1069 "could not parse gitmodules blob");
1074 int fsck_object(struct object *obj, void *data, unsigned long size,
1075 struct fsck_options *options)
1078 return report(options, obj, FSCK_MSG_BAD_OBJECT_SHA1, "no valid object to fsck");
1080 if (obj->type == OBJ_BLOB)
1081 return fsck_blob((struct blob *)obj, data, size, options);
1082 if (obj->type == OBJ_TREE)
1083 return fsck_tree((struct tree *) obj, options);
1084 if (obj->type == OBJ_COMMIT)
1085 return fsck_commit((struct commit *) obj, (const char *) data,
1087 if (obj->type == OBJ_TAG)
1088 return fsck_tag((struct tag *) obj, (const char *) data,
1091 return report(options, obj, FSCK_MSG_UNKNOWN_TYPE, "unknown type '%d' (internal fsck error)",
1095 int fsck_error_function(struct fsck_options *o,
1096 struct object *obj, int msg_type, const char *message)
1098 if (msg_type == FSCK_WARN) {
1099 warning("object %s: %s", describe_object(o, obj), message);
1102 error("object %s: %s", describe_object(o, obj), message);
1106 int fsck_finish(struct fsck_options *options)
1109 struct oidset_iter iter;
1110 const struct object_id *oid;
1112 oidset_iter_init(&gitmodules_found, &iter);
1113 while ((oid = oidset_iter_next(&iter))) {
1115 enum object_type type;
1119 if (oidset_contains(&gitmodules_done, oid))
1122 blob = lookup_blob(the_repository, oid);
1124 struct object *obj = lookup_unknown_object(oid->hash);
1125 ret |= report(options, obj,
1126 FSCK_MSG_GITMODULES_BLOB,
1127 "non-blob found at .gitmodules");
1131 buf = read_object_file(oid, &type, &size);
1133 if (is_promisor_object(&blob->object.oid))
1135 ret |= report(options, &blob->object,
1136 FSCK_MSG_GITMODULES_MISSING,
1137 "unable to read .gitmodules blob");
1141 if (type == OBJ_BLOB)
1142 ret |= fsck_blob(blob, buf, size, options);
1144 ret |= report(options, &blob->object,
1145 FSCK_MSG_GITMODULES_BLOB,
1146 "non-blob found at .gitmodules");
1151 oidset_clear(&gitmodules_found);
1152 oidset_clear(&gitmodules_done);