11 #include "sha1-array.h"
15 #include "submodule-config.h"
18 static struct oidset gitmodules_found = OIDSET_INIT;
19 static struct oidset gitmodules_done = OIDSET_INIT;
24 #define FOREACH_MSG_ID(FUNC) \
26 FUNC(NUL_IN_HEADER, FATAL) \
27 FUNC(UNTERMINATED_HEADER, FATAL) \
29 FUNC(BAD_DATE, ERROR) \
30 FUNC(BAD_DATE_OVERFLOW, ERROR) \
31 FUNC(BAD_EMAIL, ERROR) \
32 FUNC(BAD_NAME, ERROR) \
33 FUNC(BAD_OBJECT_SHA1, ERROR) \
34 FUNC(BAD_PARENT_SHA1, ERROR) \
35 FUNC(BAD_TAG_OBJECT, ERROR) \
36 FUNC(BAD_TIMEZONE, ERROR) \
37 FUNC(BAD_TREE, ERROR) \
38 FUNC(BAD_TREE_SHA1, ERROR) \
39 FUNC(BAD_TYPE, ERROR) \
40 FUNC(DUPLICATE_ENTRIES, ERROR) \
41 FUNC(MISSING_AUTHOR, ERROR) \
42 FUNC(MISSING_COMMITTER, ERROR) \
43 FUNC(MISSING_EMAIL, ERROR) \
44 FUNC(MISSING_GRAFT, ERROR) \
45 FUNC(MISSING_NAME_BEFORE_EMAIL, ERROR) \
46 FUNC(MISSING_OBJECT, ERROR) \
47 FUNC(MISSING_PARENT, ERROR) \
48 FUNC(MISSING_SPACE_BEFORE_DATE, ERROR) \
49 FUNC(MISSING_SPACE_BEFORE_EMAIL, ERROR) \
50 FUNC(MISSING_TAG, ERROR) \
51 FUNC(MISSING_TAG_ENTRY, ERROR) \
52 FUNC(MISSING_TAG_OBJECT, ERROR) \
53 FUNC(MISSING_TREE, ERROR) \
54 FUNC(MISSING_TREE_OBJECT, ERROR) \
55 FUNC(MISSING_TYPE, ERROR) \
56 FUNC(MISSING_TYPE_ENTRY, ERROR) \
57 FUNC(MULTIPLE_AUTHORS, ERROR) \
58 FUNC(TAG_OBJECT_NOT_TAG, ERROR) \
59 FUNC(TREE_NOT_SORTED, ERROR) \
60 FUNC(UNKNOWN_TYPE, ERROR) \
61 FUNC(ZERO_PADDED_DATE, ERROR) \
62 FUNC(GITMODULES_MISSING, ERROR) \
63 FUNC(GITMODULES_BLOB, ERROR) \
64 FUNC(GITMODULES_PARSE, ERROR) \
65 FUNC(GITMODULES_NAME, ERROR) \
66 FUNC(GITMODULES_SYMLINK, ERROR) \
67 FUNC(GITMODULES_URL, ERROR) \
68 FUNC(GITMODULES_PATH, ERROR) \
69 FUNC(GITMODULES_UPDATE, ERROR) \
71 FUNC(BAD_FILEMODE, WARN) \
72 FUNC(EMPTY_NAME, WARN) \
73 FUNC(FULL_PATHNAME, WARN) \
75 FUNC(HAS_DOTDOT, WARN) \
76 FUNC(HAS_DOTGIT, WARN) \
77 FUNC(NULL_SHA1, WARN) \
78 FUNC(ZERO_PADDED_FILEMODE, WARN) \
79 FUNC(NUL_IN_COMMIT, WARN) \
80 /* infos (reported as warnings, but ignored by default) */ \
81 FUNC(BAD_TAG_NAME, INFO) \
82 FUNC(MISSING_TAGGER_ENTRY, INFO)
84 #define MSG_ID(id, msg_type) FSCK_MSG_##id,
86 FOREACH_MSG_ID(MSG_ID)
92 #define MSG_ID(id, msg_type) { STR(id), NULL, FSCK_##msg_type },
94 const char *id_string;
95 const char *downcased;
97 } msg_id_info[FSCK_MSG_MAX + 1] = {
98 FOREACH_MSG_ID(MSG_ID)
103 static int parse_msg_id(const char *text)
107 if (!msg_id_info[0].downcased) {
108 /* convert id_string to lower case, without underscores. */
109 for (i = 0; i < FSCK_MSG_MAX; i++) {
110 const char *p = msg_id_info[i].id_string;
112 char *q = xmalloc(len);
114 msg_id_info[i].downcased = q;
119 *(q)++ = tolower(*(p)++);
124 for (i = 0; i < FSCK_MSG_MAX; i++)
125 if (!strcmp(text, msg_id_info[i].downcased))
131 static int fsck_msg_type(enum fsck_msg_id msg_id,
132 struct fsck_options *options)
136 assert(msg_id >= 0 && msg_id < FSCK_MSG_MAX);
138 if (options->msg_type)
139 msg_type = options->msg_type[msg_id];
141 msg_type = msg_id_info[msg_id].msg_type;
142 if (options->strict && msg_type == FSCK_WARN)
143 msg_type = FSCK_ERROR;
149 static void init_skiplist(struct fsck_options *options, const char *path)
151 static struct oid_array skiplist = OID_ARRAY_INIT;
153 char buffer[GIT_MAX_HEXSZ + 1];
154 struct object_id oid;
156 if (options->skiplist)
157 sorted = options->skiplist->sorted;
160 options->skiplist = &skiplist;
163 fd = open(path, O_RDONLY);
165 die("Could not open skip list: %s", path);
168 int result = read_in_full(fd, buffer, sizeof(buffer));
170 die_errno("Could not read '%s'", path);
173 if (parse_oid_hex(buffer, &oid, &p) || *p != '\n')
174 die("Invalid SHA-1: %s", buffer);
175 oid_array_append(&skiplist, &oid);
176 if (sorted && skiplist.nr > 1 &&
177 oidcmp(&skiplist.oid[skiplist.nr - 2],
187 static int parse_msg_type(const char *str)
189 if (!strcmp(str, "error"))
191 else if (!strcmp(str, "warn"))
193 else if (!strcmp(str, "ignore"))
196 die("Unknown fsck message type: '%s'", str);
199 int is_valid_msg_type(const char *msg_id, const char *msg_type)
201 if (parse_msg_id(msg_id) < 0)
203 parse_msg_type(msg_type);
207 void fsck_set_msg_type(struct fsck_options *options,
208 const char *msg_id, const char *msg_type)
210 int id = parse_msg_id(msg_id), type;
213 die("Unhandled message id: %s", msg_id);
214 type = parse_msg_type(msg_type);
216 if (type != FSCK_ERROR && msg_id_info[id].msg_type == FSCK_FATAL)
217 die("Cannot demote %s to %s", msg_id, msg_type);
219 if (!options->msg_type) {
222 ALLOC_ARRAY(msg_type, FSCK_MSG_MAX);
223 for (i = 0; i < FSCK_MSG_MAX; i++)
224 msg_type[i] = fsck_msg_type(i, options);
225 options->msg_type = msg_type;
228 options->msg_type[id] = type;
231 void fsck_set_msg_types(struct fsck_options *options, const char *values)
233 char *buf = xstrdup(values), *to_free = buf;
237 int len = strcspn(buf, " ,|"), equal;
247 equal < len && buf[equal] != '=' && buf[equal] != ':';
249 buf[equal] = tolower(buf[equal]);
252 if (!strcmp(buf, "skiplist")) {
254 die("skiplist requires a path");
255 init_skiplist(options, buf + equal + 1);
261 die("Missing '=': '%s'", buf);
263 fsck_set_msg_type(options, buf, buf + equal + 1);
269 static void append_msg_id(struct strbuf *sb, const char *msg_id)
272 char c = *(msg_id)++;
277 strbuf_addch(sb, tolower(c));
280 strbuf_addch(sb, *(msg_id)++);
284 strbuf_addstr(sb, ": ");
287 __attribute__((format (printf, 4, 5)))
288 static int report(struct fsck_options *options, struct object *object,
289 enum fsck_msg_id id, const char *fmt, ...)
292 struct strbuf sb = STRBUF_INIT;
293 int msg_type = fsck_msg_type(id, options), result;
295 if (msg_type == FSCK_IGNORE)
298 if (options->skiplist && object &&
299 oid_array_lookup(options->skiplist, &object->oid) >= 0)
302 if (msg_type == FSCK_FATAL)
303 msg_type = FSCK_ERROR;
304 else if (msg_type == FSCK_INFO)
305 msg_type = FSCK_WARN;
307 append_msg_id(&sb, msg_id_info[id].id_string);
310 strbuf_vaddf(&sb, fmt, ap);
311 result = options->error_func(options, object, msg_type, sb.buf);
318 static char *get_object_name(struct fsck_options *options, struct object *obj)
320 if (!options->object_names)
322 return lookup_decoration(options->object_names, obj);
325 static void put_object_name(struct fsck_options *options, struct object *obj,
326 const char *fmt, ...)
329 struct strbuf buf = STRBUF_INIT;
332 if (!options->object_names)
334 existing = lookup_decoration(options->object_names, obj);
338 strbuf_vaddf(&buf, fmt, ap);
339 add_decoration(options->object_names, obj, strbuf_detach(&buf, NULL));
343 static const char *describe_object(struct fsck_options *o, struct object *obj)
345 static struct strbuf buf = STRBUF_INIT;
349 strbuf_addstr(&buf, oid_to_hex(&obj->oid));
350 if (o->object_names && (name = lookup_decoration(o->object_names, obj)))
351 strbuf_addf(&buf, " (%s)", name);
356 static int fsck_walk_tree(struct tree *tree, void *data, struct fsck_options *options)
358 struct tree_desc desc;
359 struct name_entry entry;
363 if (parse_tree(tree))
366 name = get_object_name(options, &tree->object);
367 if (init_tree_desc_gently(&desc, tree->buffer, tree->size))
369 while (tree_entry_gently(&desc, &entry)) {
373 if (S_ISGITLINK(entry.mode))
376 if (S_ISDIR(entry.mode)) {
377 obj = (struct object *)lookup_tree(entry.oid);
379 put_object_name(options, obj, "%s%s/", name,
381 result = options->walk(obj, OBJ_TREE, data, options);
383 else if (S_ISREG(entry.mode) || S_ISLNK(entry.mode)) {
384 obj = (struct object *)lookup_blob(entry.oid);
386 put_object_name(options, obj, "%s%s", name,
388 result = options->walk(obj, OBJ_BLOB, data, options);
391 result = error("in tree %s: entry %s has bad mode %.6o",
392 describe_object(options, &tree->object), entry.path, entry.mode);
402 static int fsck_walk_commit(struct commit *commit, void *data, struct fsck_options *options)
404 int counter = 0, generation = 0, name_prefix_len = 0;
405 struct commit_list *parents;
410 if (parse_commit(commit))
413 name = get_object_name(options, &commit->object);
415 put_object_name(options, &get_commit_tree(commit)->object,
418 result = options->walk((struct object *)get_commit_tree(commit),
419 OBJ_TREE, data, options);
424 parents = commit->parents;
425 if (name && parents) {
426 int len = strlen(name), power;
428 if (len && name[len - 1] == '^') {
430 name_prefix_len = len - 1;
432 else { /* parse ~<generation> suffix */
433 for (generation = 0, power = 1;
434 len && isdigit(name[len - 1]);
436 generation += power * (name[--len] - '0');
437 if (power > 1 && len && name[len - 1] == '~')
438 name_prefix_len = len - 1;
444 struct object *obj = &parents->item->object;
447 put_object_name(options, obj, "%s^%d",
449 else if (generation > 0)
450 put_object_name(options, obj, "%.*s~%d",
451 name_prefix_len, name, generation + 1);
453 put_object_name(options, obj, "%s^", name);
455 result = options->walk((struct object *)parents->item, OBJ_COMMIT, data, options);
460 parents = parents->next;
465 static int fsck_walk_tag(struct tag *tag, void *data, struct fsck_options *options)
467 char *name = get_object_name(options, &tag->object);
472 put_object_name(options, tag->tagged, "%s", name);
473 return options->walk(tag->tagged, OBJ_ANY, data, options);
476 int fsck_walk(struct object *obj, void *data, struct fsck_options *options)
481 if (obj->type == OBJ_NONE)
482 parse_object(&obj->oid);
488 return fsck_walk_tree((struct tree *)obj, data, options);
490 return fsck_walk_commit((struct commit *)obj, data, options);
492 return fsck_walk_tag((struct tag *)obj, data, options);
494 error("Unknown object type for %s", describe_object(options, obj));
500 * The entries in a tree are ordered in the _path_ order,
501 * which means that a directory entry is ordered by adding
502 * a slash to the end of it.
504 * So a directory called "a" is ordered _after_ a file
505 * called "a.c", because "a/" sorts after "a.c".
507 #define TREE_UNORDERED (-1)
508 #define TREE_HAS_DUPS (-2)
510 static int verify_ordered(unsigned mode1, const char *name1, unsigned mode2, const char *name2)
512 int len1 = strlen(name1);
513 int len2 = strlen(name2);
514 int len = len1 < len2 ? len1 : len2;
515 unsigned char c1, c2;
518 cmp = memcmp(name1, name2, len);
522 return TREE_UNORDERED;
525 * Ok, the first <len> characters are the same.
526 * Now we need to order the next one, but turn
527 * a '\0' into a '/' for a directory entry.
533 * git-write-tree used to write out a nonsense tree that has
534 * entries with the same name, one blob and one tree. Make
535 * sure we do not have duplicate entries.
537 return TREE_HAS_DUPS;
538 if (!c1 && S_ISDIR(mode1))
540 if (!c2 && S_ISDIR(mode2))
542 return c1 < c2 ? 0 : TREE_UNORDERED;
545 static int fsck_tree(struct tree *item, struct fsck_options *options)
548 int has_null_sha1 = 0;
549 int has_full_path = 0;
550 int has_empty_name = 0;
554 int has_zero_pad = 0;
555 int has_bad_modes = 0;
556 int has_dup_entries = 0;
557 int not_properly_sorted = 0;
558 struct tree_desc desc;
562 if (init_tree_desc_gently(&desc, item->buffer, item->size)) {
563 retval += report(options, &item->object, FSCK_MSG_BAD_TREE, "cannot be parsed as a tree");
572 const char *name, *backslash;
573 const struct object_id *oid;
575 oid = tree_entry_extract(&desc, &name, &mode);
577 has_null_sha1 |= is_null_oid(oid);
578 has_full_path |= !!strchr(name, '/');
579 has_empty_name |= !*name;
580 has_dot |= !strcmp(name, ".");
581 has_dotdot |= !strcmp(name, "..");
582 has_dotgit |= is_hfs_dotgit(name) || is_ntfs_dotgit(name);
583 has_zero_pad |= *(char *)desc.buffer == '0';
585 if (is_hfs_dotgitmodules(name) || is_ntfs_dotgitmodules(name)) {
587 oidset_insert(&gitmodules_found, oid);
589 retval += report(options, &item->object,
590 FSCK_MSG_GITMODULES_SYMLINK,
591 ".gitmodules is a symbolic link");
594 if ((backslash = strchr(name, '\\'))) {
597 has_dotgit |= is_ntfs_dotgit(backslash);
598 if (is_ntfs_dotgitmodules(backslash)) {
600 oidset_insert(&gitmodules_found, oid);
602 retval += report(options, &item->object,
603 FSCK_MSG_GITMODULES_SYMLINK,
604 ".gitmodules is a symbolic link");
606 backslash = strchr(backslash, '\\');
610 if (update_tree_entry_gently(&desc)) {
611 retval += report(options, &item->object, FSCK_MSG_BAD_TREE, "cannot be parsed as a tree");
626 * This is nonstandard, but we had a few of these
627 * early on when we honored the full set of mode
631 if (!options->strict)
639 switch (verify_ordered(o_mode, o_name, mode, name)) {
641 not_properly_sorted = 1;
656 retval += report(options, &item->object, FSCK_MSG_NULL_SHA1, "contains entries pointing to null sha1");
658 retval += report(options, &item->object, FSCK_MSG_FULL_PATHNAME, "contains full pathnames");
660 retval += report(options, &item->object, FSCK_MSG_EMPTY_NAME, "contains empty pathname");
662 retval += report(options, &item->object, FSCK_MSG_HAS_DOT, "contains '.'");
664 retval += report(options, &item->object, FSCK_MSG_HAS_DOTDOT, "contains '..'");
666 retval += report(options, &item->object, FSCK_MSG_HAS_DOTGIT, "contains '.git'");
668 retval += report(options, &item->object, FSCK_MSG_ZERO_PADDED_FILEMODE, "contains zero-padded file modes");
670 retval += report(options, &item->object, FSCK_MSG_BAD_FILEMODE, "contains bad file modes");
672 retval += report(options, &item->object, FSCK_MSG_DUPLICATE_ENTRIES, "contains duplicate file entries");
673 if (not_properly_sorted)
674 retval += report(options, &item->object, FSCK_MSG_TREE_NOT_SORTED, "not properly sorted");
678 static int verify_headers(const void *data, unsigned long size,
679 struct object *obj, struct fsck_options *options)
681 const char *buffer = (const char *)data;
684 for (i = 0; i < size; i++) {
687 return report(options, obj,
688 FSCK_MSG_NUL_IN_HEADER,
689 "unterminated header: NUL at offset %ld", i);
691 if (i + 1 < size && buffer[i + 1] == '\n')
697 * We did not find double-LF that separates the header
698 * and the body. Not having a body is not a crime but
699 * we do want to see the terminating LF for the last header
702 if (size && buffer[size - 1] == '\n')
705 return report(options, obj,
706 FSCK_MSG_UNTERMINATED_HEADER, "unterminated header");
709 static int fsck_ident(const char **ident, struct object *obj, struct fsck_options *options)
711 const char *p = *ident;
714 *ident = strchrnul(*ident, '\n');
719 return report(options, obj, FSCK_MSG_MISSING_NAME_BEFORE_EMAIL, "invalid author/committer line - missing space before email");
720 p += strcspn(p, "<>\n");
722 return report(options, obj, FSCK_MSG_BAD_NAME, "invalid author/committer line - bad name");
724 return report(options, obj, FSCK_MSG_MISSING_EMAIL, "invalid author/committer line - missing email");
726 return report(options, obj, FSCK_MSG_MISSING_SPACE_BEFORE_EMAIL, "invalid author/committer line - missing space before email");
728 p += strcspn(p, "<>\n");
730 return report(options, obj, FSCK_MSG_BAD_EMAIL, "invalid author/committer line - bad email");
733 return report(options, obj, FSCK_MSG_MISSING_SPACE_BEFORE_DATE, "invalid author/committer line - missing space before date");
735 if (*p == '0' && p[1] != ' ')
736 return report(options, obj, FSCK_MSG_ZERO_PADDED_DATE, "invalid author/committer line - zero-padded date");
737 if (date_overflows(parse_timestamp(p, &end, 10)))
738 return report(options, obj, FSCK_MSG_BAD_DATE_OVERFLOW, "invalid author/committer line - date causes integer overflow");
739 if ((end == p || *end != ' '))
740 return report(options, obj, FSCK_MSG_BAD_DATE, "invalid author/committer line - bad date");
742 if ((*p != '+' && *p != '-') ||
748 return report(options, obj, FSCK_MSG_BAD_TIMEZONE, "invalid author/committer line - bad time zone");
753 static int fsck_commit_buffer(struct commit *commit, const char *buffer,
754 unsigned long size, struct fsck_options *options)
756 struct object_id tree_oid, oid;
757 struct commit_graft *graft;
758 unsigned parent_count, parent_line_count = 0, author_count;
760 const char *buffer_begin = buffer;
763 if (verify_headers(buffer, size, &commit->object, options))
766 if (!skip_prefix(buffer, "tree ", &buffer))
767 return report(options, &commit->object, FSCK_MSG_MISSING_TREE, "invalid format - expected 'tree' line");
768 if (parse_oid_hex(buffer, &tree_oid, &p) || *p != '\n') {
769 err = report(options, &commit->object, FSCK_MSG_BAD_TREE_SHA1, "invalid 'tree' line format - bad sha1");
774 while (skip_prefix(buffer, "parent ", &buffer)) {
775 if (parse_oid_hex(buffer, &oid, &p) || *p != '\n') {
776 err = report(options, &commit->object, FSCK_MSG_BAD_PARENT_SHA1, "invalid 'parent' line format - bad sha1");
783 graft = lookup_commit_graft(&commit->object.oid);
784 parent_count = commit_list_count(commit->parents);
786 if (graft->nr_parent == -1 && !parent_count)
787 ; /* shallow commit */
788 else if (graft->nr_parent != parent_count) {
789 err = report(options, &commit->object, FSCK_MSG_MISSING_GRAFT, "graft objects missing");
794 if (parent_count != parent_line_count) {
795 err = report(options, &commit->object, FSCK_MSG_MISSING_PARENT, "parent objects missing");
801 while (skip_prefix(buffer, "author ", &buffer)) {
803 err = fsck_ident(&buffer, &commit->object, options);
807 if (author_count < 1)
808 err = report(options, &commit->object, FSCK_MSG_MISSING_AUTHOR, "invalid format - expected 'author' line");
809 else if (author_count > 1)
810 err = report(options, &commit->object, FSCK_MSG_MULTIPLE_AUTHORS, "invalid format - multiple 'author' lines");
813 if (!skip_prefix(buffer, "committer ", &buffer))
814 return report(options, &commit->object, FSCK_MSG_MISSING_COMMITTER, "invalid format - expected 'committer' line");
815 err = fsck_ident(&buffer, &commit->object, options);
818 if (!get_commit_tree(commit)) {
819 err = report(options, &commit->object, FSCK_MSG_BAD_TREE, "could not load commit's tree %s", oid_to_hex(&tree_oid));
823 if (memchr(buffer_begin, '\0', size)) {
824 err = report(options, &commit->object, FSCK_MSG_NUL_IN_COMMIT,
825 "NUL byte in the commit object body");
832 static int fsck_commit(struct commit *commit, const char *data,
833 unsigned long size, struct fsck_options *options)
835 const char *buffer = data ? data : get_commit_buffer(commit, &size);
836 int ret = fsck_commit_buffer(commit, buffer, size, options);
838 unuse_commit_buffer(commit, buffer);
842 static int fsck_tag_buffer(struct tag *tag, const char *data,
843 unsigned long size, struct fsck_options *options)
845 struct object_id oid;
848 char *to_free = NULL, *eol;
849 struct strbuf sb = STRBUF_INIT;
855 enum object_type type;
858 read_object_file(&tag->object.oid, &type, &size);
860 return report(options, &tag->object,
861 FSCK_MSG_MISSING_TAG_OBJECT,
862 "cannot read tag object");
864 if (type != OBJ_TAG) {
865 ret = report(options, &tag->object,
866 FSCK_MSG_TAG_OBJECT_NOT_TAG,
867 "expected tag got %s",
873 ret = verify_headers(buffer, size, &tag->object, options);
877 if (!skip_prefix(buffer, "object ", &buffer)) {
878 ret = report(options, &tag->object, FSCK_MSG_MISSING_OBJECT, "invalid format - expected 'object' line");
881 if (parse_oid_hex(buffer, &oid, &p) || *p != '\n') {
882 ret = report(options, &tag->object, FSCK_MSG_BAD_OBJECT_SHA1, "invalid 'object' line format - bad sha1");
888 if (!skip_prefix(buffer, "type ", &buffer)) {
889 ret = report(options, &tag->object, FSCK_MSG_MISSING_TYPE_ENTRY, "invalid format - expected 'type' line");
892 eol = strchr(buffer, '\n');
894 ret = report(options, &tag->object, FSCK_MSG_MISSING_TYPE, "invalid format - unexpected end after 'type' line");
897 if (type_from_string_gently(buffer, eol - buffer, 1) < 0)
898 ret = report(options, &tag->object, FSCK_MSG_BAD_TYPE, "invalid 'type' value");
903 if (!skip_prefix(buffer, "tag ", &buffer)) {
904 ret = report(options, &tag->object, FSCK_MSG_MISSING_TAG_ENTRY, "invalid format - expected 'tag' line");
907 eol = strchr(buffer, '\n');
909 ret = report(options, &tag->object, FSCK_MSG_MISSING_TAG, "invalid format - unexpected end after 'type' line");
912 strbuf_addf(&sb, "refs/tags/%.*s", (int)(eol - buffer), buffer);
913 if (check_refname_format(sb.buf, 0)) {
914 ret = report(options, &tag->object, FSCK_MSG_BAD_TAG_NAME,
915 "invalid 'tag' name: %.*s",
916 (int)(eol - buffer), buffer);
922 if (!skip_prefix(buffer, "tagger ", &buffer)) {
923 /* early tags do not contain 'tagger' lines; warn only */
924 ret = report(options, &tag->object, FSCK_MSG_MISSING_TAGGER_ENTRY, "invalid format - expected 'tagger' line");
929 ret = fsck_ident(&buffer, &tag->object, options);
937 static int fsck_tag(struct tag *tag, const char *data,
938 unsigned long size, struct fsck_options *options)
940 struct object *tagged = tag->tagged;
943 return report(options, &tag->object, FSCK_MSG_BAD_TAG_OBJECT, "could not load tagged object");
945 return fsck_tag_buffer(tag, data, size, options);
948 struct fsck_gitmodules_data {
950 struct fsck_options *options;
954 static int fsck_gitmodules_fn(const char *var, const char *value, void *vdata)
956 struct fsck_gitmodules_data *data = vdata;
957 const char *subsection, *key;
961 if (parse_config_key(var, "submodule", &subsection, &subsection_len, &key) < 0 ||
965 name = xmemdupz(subsection, subsection_len);
966 if (check_submodule_name(name) < 0)
967 data->ret |= report(data->options, data->obj,
968 FSCK_MSG_GITMODULES_NAME,
969 "disallowed submodule name: %s",
971 if (!strcmp(key, "url") && value &&
972 looks_like_command_line_option(value))
973 data->ret |= report(data->options, data->obj,
974 FSCK_MSG_GITMODULES_URL,
975 "disallowed submodule url: %s",
977 if (!strcmp(key, "path") && value &&
978 looks_like_command_line_option(value))
979 data->ret |= report(data->options, data->obj,
980 FSCK_MSG_GITMODULES_PATH,
981 "disallowed submodule path: %s",
983 if (!strcmp(key, "update") && value &&
984 parse_submodule_update_type(value) == SM_UPDATE_COMMAND)
985 data->ret |= report(data->options, data->obj,
986 FSCK_MSG_GITMODULES_UPDATE,
987 "disallowed submodule update setting: %s",
994 static int fsck_blob(struct blob *blob, const char *buf,
995 unsigned long size, struct fsck_options *options)
997 struct fsck_gitmodules_data data;
999 if (!oidset_contains(&gitmodules_found, &blob->object.oid))
1001 oidset_insert(&gitmodules_done, &blob->object.oid);
1005 * A missing buffer here is a sign that the caller found the
1006 * blob too gigantic to load into memory. Let's just consider
1009 return report(options, &blob->object,
1010 FSCK_MSG_GITMODULES_PARSE,
1011 ".gitmodules too large to parse");
1014 data.obj = &blob->object;
1015 data.options = options;
1017 if (git_config_from_mem(fsck_gitmodules_fn, CONFIG_ORIGIN_BLOB,
1018 ".gitmodules", buf, size, &data))
1019 data.ret |= report(options, &blob->object,
1020 FSCK_MSG_GITMODULES_PARSE,
1021 "could not parse gitmodules blob");
1026 int fsck_object(struct object *obj, void *data, unsigned long size,
1027 struct fsck_options *options)
1030 return report(options, obj, FSCK_MSG_BAD_OBJECT_SHA1, "no valid object to fsck");
1032 if (obj->type == OBJ_BLOB)
1033 return fsck_blob((struct blob *)obj, data, size, options);
1034 if (obj->type == OBJ_TREE)
1035 return fsck_tree((struct tree *) obj, options);
1036 if (obj->type == OBJ_COMMIT)
1037 return fsck_commit((struct commit *) obj, (const char *) data,
1039 if (obj->type == OBJ_TAG)
1040 return fsck_tag((struct tag *) obj, (const char *) data,
1043 return report(options, obj, FSCK_MSG_UNKNOWN_TYPE, "unknown type '%d' (internal fsck error)",
1047 int fsck_error_function(struct fsck_options *o,
1048 struct object *obj, int msg_type, const char *message)
1050 if (msg_type == FSCK_WARN) {
1051 warning("object %s: %s", describe_object(o, obj), message);
1054 error("object %s: %s", describe_object(o, obj), message);
1058 int fsck_finish(struct fsck_options *options)
1061 struct oidset_iter iter;
1062 const struct object_id *oid;
1064 oidset_iter_init(&gitmodules_found, &iter);
1065 while ((oid = oidset_iter_next(&iter))) {
1067 enum object_type type;
1071 if (oidset_contains(&gitmodules_done, oid))
1074 blob = lookup_blob(oid);
1076 struct object *obj = lookup_unknown_object(oid->hash);
1077 ret |= report(options, obj,
1078 FSCK_MSG_GITMODULES_BLOB,
1079 "non-blob found at .gitmodules");
1083 buf = read_object_file(oid, &type, &size);
1085 if (is_promisor_object(&blob->object.oid))
1087 ret |= report(options, &blob->object,
1088 FSCK_MSG_GITMODULES_MISSING,
1089 "unable to read .gitmodules blob");
1093 if (type == OBJ_BLOB)
1094 ret |= fsck_blob(blob, buf, size, options);
1096 ret |= report(options, &blob->object,
1097 FSCK_MSG_GITMODULES_BLOB,
1098 "non-blob found at .gitmodules");
1103 oidset_clear(&gitmodules_found);
1104 oidset_clear(&gitmodules_done);