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Commit | Line | Data |
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355885d5 | 1 | #include "cache.h" |
cbd53a21 | 2 | #include "object-store.h" |
355885d5 MK |
3 | #include "object.h" |
4 | #include "blob.h" | |
5 | #include "tree.h" | |
6 | #include "tree-walk.h" | |
7 | #include "commit.h" | |
8 | #include "tag.h" | |
9 | #include "fsck.h" | |
cec097be | 10 | #include "refs.h" |
a18fcc9f | 11 | #include "utf8.h" |
cd94c6f9 | 12 | #include "sha1-array.h" |
7b35efd7 | 13 | #include "decorate.h" |
159e7b08 | 14 | #include "oidset.h" |
27387444 | 15 | #include "packfile.h" |
ed8b10f6 JK |
16 | #include "submodule-config.h" |
17 | #include "config.h" | |
3ac68a93 | 18 | #include "help.h" |
159e7b08 JK |
19 | |
20 | static struct oidset gitmodules_found = OIDSET_INIT; | |
21 | static struct oidset gitmodules_done = OIDSET_INIT; | |
355885d5 | 22 | |
f50c4407 | 23 | #define FSCK_FATAL -1 |
f27d05b1 | 24 | #define FSCK_INFO -2 |
f50c4407 | 25 | |
c99ba492 | 26 | #define FOREACH_MSG_ID(FUNC) \ |
f50c4407 JS |
27 | /* fatal errors */ \ |
28 | FUNC(NUL_IN_HEADER, FATAL) \ | |
29 | FUNC(UNTERMINATED_HEADER, FATAL) \ | |
c99ba492 JS |
30 | /* errors */ \ |
31 | FUNC(BAD_DATE, ERROR) \ | |
32 | FUNC(BAD_DATE_OVERFLOW, ERROR) \ | |
33 | FUNC(BAD_EMAIL, ERROR) \ | |
34 | FUNC(BAD_NAME, ERROR) \ | |
35 | FUNC(BAD_OBJECT_SHA1, ERROR) \ | |
36 | FUNC(BAD_PARENT_SHA1, ERROR) \ | |
37 | FUNC(BAD_TAG_OBJECT, ERROR) \ | |
38 | FUNC(BAD_TIMEZONE, ERROR) \ | |
39 | FUNC(BAD_TREE, ERROR) \ | |
40 | FUNC(BAD_TREE_SHA1, ERROR) \ | |
41 | FUNC(BAD_TYPE, ERROR) \ | |
42 | FUNC(DUPLICATE_ENTRIES, ERROR) \ | |
43 | FUNC(MISSING_AUTHOR, ERROR) \ | |
44 | FUNC(MISSING_COMMITTER, ERROR) \ | |
45 | FUNC(MISSING_EMAIL, ERROR) \ | |
46 | FUNC(MISSING_GRAFT, ERROR) \ | |
47 | FUNC(MISSING_NAME_BEFORE_EMAIL, ERROR) \ | |
48 | FUNC(MISSING_OBJECT, ERROR) \ | |
49 | FUNC(MISSING_PARENT, ERROR) \ | |
50 | FUNC(MISSING_SPACE_BEFORE_DATE, ERROR) \ | |
51 | FUNC(MISSING_SPACE_BEFORE_EMAIL, ERROR) \ | |
52 | FUNC(MISSING_TAG, ERROR) \ | |
53 | FUNC(MISSING_TAG_ENTRY, ERROR) \ | |
54 | FUNC(MISSING_TAG_OBJECT, ERROR) \ | |
55 | FUNC(MISSING_TREE, ERROR) \ | |
159e7b08 | 56 | FUNC(MISSING_TREE_OBJECT, ERROR) \ |
c99ba492 JS |
57 | FUNC(MISSING_TYPE, ERROR) \ |
58 | FUNC(MISSING_TYPE_ENTRY, ERROR) \ | |
c9ad147f | 59 | FUNC(MULTIPLE_AUTHORS, ERROR) \ |
c99ba492 JS |
60 | FUNC(TAG_OBJECT_NOT_TAG, ERROR) \ |
61 | FUNC(TREE_NOT_SORTED, ERROR) \ | |
62 | FUNC(UNKNOWN_TYPE, ERROR) \ | |
c99ba492 | 63 | FUNC(ZERO_PADDED_DATE, ERROR) \ |
159e7b08 JK |
64 | FUNC(GITMODULES_MISSING, ERROR) \ |
65 | FUNC(GITMODULES_BLOB, ERROR) \ | |
ed8b10f6 JK |
66 | FUNC(GITMODULES_PARSE, ERROR) \ |
67 | FUNC(GITMODULES_NAME, ERROR) \ | |
b7b1fca1 | 68 | FUNC(GITMODULES_SYMLINK, ERROR) \ |
c99ba492 JS |
69 | /* warnings */ \ |
70 | FUNC(BAD_FILEMODE, WARN) \ | |
c99ba492 JS |
71 | FUNC(EMPTY_NAME, WARN) \ |
72 | FUNC(FULL_PATHNAME, WARN) \ | |
73 | FUNC(HAS_DOT, WARN) \ | |
74 | FUNC(HAS_DOTDOT, WARN) \ | |
75 | FUNC(HAS_DOTGIT, WARN) \ | |
c99ba492 | 76 | FUNC(NULL_SHA1, WARN) \ |
f27d05b1 | 77 | FUNC(ZERO_PADDED_FILEMODE, WARN) \ |
6d2d780f | 78 | FUNC(NUL_IN_COMMIT, WARN) \ |
f27d05b1 JS |
79 | /* infos (reported as warnings, but ignored by default) */ \ |
80 | FUNC(BAD_TAG_NAME, INFO) \ | |
81 | FUNC(MISSING_TAGGER_ENTRY, INFO) | |
c99ba492 JS |
82 | |
83 | #define MSG_ID(id, msg_type) FSCK_MSG_##id, | |
84 | enum fsck_msg_id { | |
85 | FOREACH_MSG_ID(MSG_ID) | |
86 | FSCK_MSG_MAX | |
87 | }; | |
88 | #undef MSG_ID | |
89 | ||
f417eed8 | 90 | #define STR(x) #x |
a4a9cc19 | 91 | #define MSG_ID(id, msg_type) { STR(id), NULL, NULL, FSCK_##msg_type }, |
c99ba492 | 92 | static struct { |
f417eed8 JS |
93 | const char *id_string; |
94 | const char *downcased; | |
a4a9cc19 | 95 | const char *camelcased; |
c99ba492 JS |
96 | int msg_type; |
97 | } msg_id_info[FSCK_MSG_MAX + 1] = { | |
98 | FOREACH_MSG_ID(MSG_ID) | |
a4a9cc19 | 99 | { NULL, NULL, NULL, -1 } |
c99ba492 JS |
100 | }; |
101 | #undef MSG_ID | |
102 | ||
a46baac6 | 103 | static void prepare_msg_ids(void) |
f417eed8 JS |
104 | { |
105 | int i; | |
106 | ||
a46baac6 NTND |
107 | if (msg_id_info[0].downcased) |
108 | return; | |
109 | ||
110 | /* convert id_string to lower case, without underscores. */ | |
111 | for (i = 0; i < FSCK_MSG_MAX; i++) { | |
112 | const char *p = msg_id_info[i].id_string; | |
113 | int len = strlen(p); | |
114 | char *q = xmalloc(len); | |
115 | ||
116 | msg_id_info[i].downcased = q; | |
117 | while (*p) | |
118 | if (*p == '_') | |
119 | p++; | |
120 | else | |
121 | *(q)++ = tolower(*(p)++); | |
122 | *q = '\0'; | |
a4a9cc19 NTND |
123 | |
124 | p = msg_id_info[i].id_string; | |
125 | q = xmalloc(len); | |
126 | msg_id_info[i].camelcased = q; | |
127 | while (*p) { | |
128 | if (*p == '_') { | |
129 | p++; | |
130 | if (*p) | |
131 | *q++ = *p++; | |
132 | } else { | |
133 | *q++ = tolower(*p++); | |
134 | } | |
f417eed8 | 135 | } |
a4a9cc19 | 136 | *q = '\0'; |
f417eed8 | 137 | } |
a46baac6 NTND |
138 | } |
139 | ||
140 | static int parse_msg_id(const char *text) | |
141 | { | |
142 | int i; | |
143 | ||
144 | prepare_msg_ids(); | |
f417eed8 JS |
145 | |
146 | for (i = 0; i < FSCK_MSG_MAX; i++) | |
147 | if (!strcmp(text, msg_id_info[i].downcased)) | |
148 | return i; | |
149 | ||
150 | return -1; | |
151 | } | |
152 | ||
3ac68a93 NTND |
153 | void list_config_fsck_msg_ids(struct string_list *list, const char *prefix) |
154 | { | |
155 | int i; | |
156 | ||
157 | prepare_msg_ids(); | |
158 | ||
3ac68a93 | 159 | for (i = 0; i < FSCK_MSG_MAX; i++) |
a4a9cc19 | 160 | list_config_item(list, prefix, msg_id_info[i].camelcased); |
3ac68a93 NTND |
161 | } |
162 | ||
c99ba492 JS |
163 | static int fsck_msg_type(enum fsck_msg_id msg_id, |
164 | struct fsck_options *options) | |
165 | { | |
166 | int msg_type; | |
167 | ||
0282f4dc JS |
168 | assert(msg_id >= 0 && msg_id < FSCK_MSG_MAX); |
169 | ||
170 | if (options->msg_type) | |
171 | msg_type = options->msg_type[msg_id]; | |
172 | else { | |
173 | msg_type = msg_id_info[msg_id].msg_type; | |
174 | if (options->strict && msg_type == FSCK_WARN) | |
175 | msg_type = FSCK_ERROR; | |
176 | } | |
c99ba492 JS |
177 | |
178 | return msg_type; | |
179 | } | |
180 | ||
cd94c6f9 JS |
181 | static void init_skiplist(struct fsck_options *options, const char *path) |
182 | { | |
910650d2 | 183 | static struct oid_array skiplist = OID_ARRAY_INIT; |
cd94c6f9 | 184 | int sorted, fd; |
365c27fb | 185 | char buffer[GIT_MAX_HEXSZ + 1]; |
186 | struct object_id oid; | |
cd94c6f9 JS |
187 | |
188 | if (options->skiplist) | |
189 | sorted = options->skiplist->sorted; | |
190 | else { | |
191 | sorted = 1; | |
192 | options->skiplist = &skiplist; | |
193 | } | |
194 | ||
195 | fd = open(path, O_RDONLY); | |
196 | if (fd < 0) | |
197 | die("Could not open skip list: %s", path); | |
198 | for (;;) { | |
365c27fb | 199 | const char *p; |
cd94c6f9 JS |
200 | int result = read_in_full(fd, buffer, sizeof(buffer)); |
201 | if (result < 0) | |
202 | die_errno("Could not read '%s'", path); | |
203 | if (!result) | |
204 | break; | |
365c27fb | 205 | if (parse_oid_hex(buffer, &oid, &p) || *p != '\n') |
cd94c6f9 | 206 | die("Invalid SHA-1: %s", buffer); |
910650d2 | 207 | oid_array_append(&skiplist, &oid); |
cd94c6f9 | 208 | if (sorted && skiplist.nr > 1 && |
ee3051bd | 209 | oidcmp(&skiplist.oid[skiplist.nr - 2], |
210 | &oid) > 0) | |
cd94c6f9 JS |
211 | sorted = 0; |
212 | } | |
213 | close(fd); | |
214 | ||
215 | if (sorted) | |
216 | skiplist.sorted = 1; | |
217 | } | |
218 | ||
0282f4dc JS |
219 | static int parse_msg_type(const char *str) |
220 | { | |
221 | if (!strcmp(str, "error")) | |
222 | return FSCK_ERROR; | |
223 | else if (!strcmp(str, "warn")) | |
224 | return FSCK_WARN; | |
efaba7cc JS |
225 | else if (!strcmp(str, "ignore")) |
226 | return FSCK_IGNORE; | |
0282f4dc JS |
227 | else |
228 | die("Unknown fsck message type: '%s'", str); | |
229 | } | |
230 | ||
5d477a33 JS |
231 | int is_valid_msg_type(const char *msg_id, const char *msg_type) |
232 | { | |
233 | if (parse_msg_id(msg_id) < 0) | |
234 | return 0; | |
235 | parse_msg_type(msg_type); | |
236 | return 1; | |
237 | } | |
238 | ||
0282f4dc JS |
239 | void fsck_set_msg_type(struct fsck_options *options, |
240 | const char *msg_id, const char *msg_type) | |
241 | { | |
242 | int id = parse_msg_id(msg_id), type; | |
243 | ||
244 | if (id < 0) | |
245 | die("Unhandled message id: %s", msg_id); | |
246 | type = parse_msg_type(msg_type); | |
247 | ||
f50c4407 JS |
248 | if (type != FSCK_ERROR && msg_id_info[id].msg_type == FSCK_FATAL) |
249 | die("Cannot demote %s to %s", msg_id, msg_type); | |
250 | ||
0282f4dc JS |
251 | if (!options->msg_type) { |
252 | int i; | |
b32fa95f JK |
253 | int *msg_type; |
254 | ALLOC_ARRAY(msg_type, FSCK_MSG_MAX); | |
0282f4dc JS |
255 | for (i = 0; i < FSCK_MSG_MAX; i++) |
256 | msg_type[i] = fsck_msg_type(i, options); | |
257 | options->msg_type = msg_type; | |
258 | } | |
259 | ||
260 | options->msg_type[id] = type; | |
261 | } | |
262 | ||
263 | void fsck_set_msg_types(struct fsck_options *options, const char *values) | |
264 | { | |
265 | char *buf = xstrdup(values), *to_free = buf; | |
266 | int done = 0; | |
267 | ||
268 | while (!done) { | |
269 | int len = strcspn(buf, " ,|"), equal; | |
270 | ||
271 | done = !buf[len]; | |
272 | if (!len) { | |
273 | buf++; | |
274 | continue; | |
275 | } | |
276 | buf[len] = '\0'; | |
277 | ||
278 | for (equal = 0; | |
279 | equal < len && buf[equal] != '=' && buf[equal] != ':'; | |
280 | equal++) | |
281 | buf[equal] = tolower(buf[equal]); | |
282 | buf[equal] = '\0'; | |
283 | ||
cd94c6f9 JS |
284 | if (!strcmp(buf, "skiplist")) { |
285 | if (equal == len) | |
286 | die("skiplist requires a path"); | |
287 | init_skiplist(options, buf + equal + 1); | |
288 | buf += len + 1; | |
289 | continue; | |
290 | } | |
291 | ||
0282f4dc JS |
292 | if (equal == len) |
293 | die("Missing '=': '%s'", buf); | |
355885d5 | 294 | |
0282f4dc JS |
295 | fsck_set_msg_type(options, buf, buf + equal + 1); |
296 | buf += len + 1; | |
297 | } | |
298 | free(to_free); | |
299 | } | |
300 | ||
71ab8fa8 JS |
301 | static void append_msg_id(struct strbuf *sb, const char *msg_id) |
302 | { | |
303 | for (;;) { | |
304 | char c = *(msg_id)++; | |
305 | ||
306 | if (!c) | |
307 | break; | |
308 | if (c != '_') | |
309 | strbuf_addch(sb, tolower(c)); | |
310 | else { | |
311 | assert(*msg_id); | |
312 | strbuf_addch(sb, *(msg_id)++); | |
313 | } | |
314 | } | |
315 | ||
316 | strbuf_addstr(sb, ": "); | |
317 | } | |
318 | ||
c99ba492 JS |
319 | __attribute__((format (printf, 4, 5))) |
320 | static int report(struct fsck_options *options, struct object *object, | |
321 | enum fsck_msg_id id, const char *fmt, ...) | |
322 | { | |
323 | va_list ap; | |
324 | struct strbuf sb = STRBUF_INIT; | |
325 | int msg_type = fsck_msg_type(id, options), result; | |
326 | ||
efaba7cc JS |
327 | if (msg_type == FSCK_IGNORE) |
328 | return 0; | |
329 | ||
cd94c6f9 | 330 | if (options->skiplist && object && |
910650d2 | 331 | oid_array_lookup(options->skiplist, &object->oid) >= 0) |
cd94c6f9 JS |
332 | return 0; |
333 | ||
f50c4407 JS |
334 | if (msg_type == FSCK_FATAL) |
335 | msg_type = FSCK_ERROR; | |
f27d05b1 JS |
336 | else if (msg_type == FSCK_INFO) |
337 | msg_type = FSCK_WARN; | |
f50c4407 | 338 | |
71ab8fa8 JS |
339 | append_msg_id(&sb, msg_id_info[id].id_string); |
340 | ||
c99ba492 JS |
341 | va_start(ap, fmt); |
342 | strbuf_vaddf(&sb, fmt, ap); | |
1cd772cc | 343 | result = options->error_func(options, object, msg_type, sb.buf); |
c99ba492 JS |
344 | strbuf_release(&sb); |
345 | va_end(ap); | |
346 | ||
347 | return result; | |
348 | } | |
349 | ||
7b35efd7 JS |
350 | static char *get_object_name(struct fsck_options *options, struct object *obj) |
351 | { | |
352 | if (!options->object_names) | |
353 | return NULL; | |
354 | return lookup_decoration(options->object_names, obj); | |
355 | } | |
356 | ||
357 | static void put_object_name(struct fsck_options *options, struct object *obj, | |
358 | const char *fmt, ...) | |
359 | { | |
360 | va_list ap; | |
361 | struct strbuf buf = STRBUF_INIT; | |
362 | char *existing; | |
363 | ||
364 | if (!options->object_names) | |
365 | return; | |
366 | existing = lookup_decoration(options->object_names, obj); | |
367 | if (existing) | |
368 | return; | |
369 | va_start(ap, fmt); | |
370 | strbuf_vaddf(&buf, fmt, ap); | |
371 | add_decoration(options->object_names, obj, strbuf_detach(&buf, NULL)); | |
372 | va_end(ap); | |
373 | } | |
374 | ||
90cf590f JS |
375 | static const char *describe_object(struct fsck_options *o, struct object *obj) |
376 | { | |
377 | static struct strbuf buf = STRBUF_INIT; | |
378 | char *name; | |
379 | ||
380 | strbuf_reset(&buf); | |
381 | strbuf_addstr(&buf, oid_to_hex(&obj->oid)); | |
382 | if (o->object_names && (name = lookup_decoration(o->object_names, obj))) | |
383 | strbuf_addf(&buf, " (%s)", name); | |
384 | ||
385 | return buf.buf; | |
386 | } | |
387 | ||
22410549 | 388 | static int fsck_walk_tree(struct tree *tree, void *data, struct fsck_options *options) |
355885d5 MK |
389 | { |
390 | struct tree_desc desc; | |
391 | struct name_entry entry; | |
392 | int res = 0; | |
7b35efd7 | 393 | const char *name; |
355885d5 MK |
394 | |
395 | if (parse_tree(tree)) | |
396 | return -1; | |
397 | ||
7b35efd7 | 398 | name = get_object_name(options, &tree->object); |
8354fa3d DT |
399 | if (init_tree_desc_gently(&desc, tree->buffer, tree->size)) |
400 | return -1; | |
401 | while (tree_entry_gently(&desc, &entry)) { | |
7b35efd7 | 402 | struct object *obj; |
355885d5 MK |
403 | int result; |
404 | ||
405 | if (S_ISGITLINK(entry.mode)) | |
406 | continue; | |
7b35efd7 JS |
407 | |
408 | if (S_ISDIR(entry.mode)) { | |
2720f6db RS |
409 | obj = (struct object *)lookup_tree(entry.oid); |
410 | if (name && obj) | |
7b35efd7 JS |
411 | put_object_name(options, obj, "%s%s/", name, |
412 | entry.path); | |
413 | result = options->walk(obj, OBJ_TREE, data, options); | |
414 | } | |
415 | else if (S_ISREG(entry.mode) || S_ISLNK(entry.mode)) { | |
2720f6db RS |
416 | obj = (struct object *)lookup_blob(entry.oid); |
417 | if (name && obj) | |
7b35efd7 JS |
418 | put_object_name(options, obj, "%s%s", name, |
419 | entry.path); | |
420 | result = options->walk(obj, OBJ_BLOB, data, options); | |
421 | } | |
355885d5 | 422 | else { |
82247e9b | 423 | result = error("in tree %s: entry %s has bad mode %.6o", |
90cf590f | 424 | describe_object(options, &tree->object), entry.path, entry.mode); |
355885d5 MK |
425 | } |
426 | if (result < 0) | |
427 | return result; | |
428 | if (!res) | |
429 | res = result; | |
430 | } | |
431 | return res; | |
432 | } | |
433 | ||
22410549 | 434 | static int fsck_walk_commit(struct commit *commit, void *data, struct fsck_options *options) |
355885d5 | 435 | { |
7b35efd7 | 436 | int counter = 0, generation = 0, name_prefix_len = 0; |
355885d5 MK |
437 | struct commit_list *parents; |
438 | int res; | |
439 | int result; | |
7b35efd7 | 440 | const char *name; |
355885d5 MK |
441 | |
442 | if (parse_commit(commit)) | |
443 | return -1; | |
444 | ||
7b35efd7 JS |
445 | name = get_object_name(options, &commit->object); |
446 | if (name) | |
2e27bd77 DS |
447 | put_object_name(options, &get_commit_tree(commit)->object, |
448 | "%s:", name); | |
7b35efd7 | 449 | |
2e27bd77 DS |
450 | result = options->walk((struct object *)get_commit_tree(commit), |
451 | OBJ_TREE, data, options); | |
355885d5 MK |
452 | if (result < 0) |
453 | return result; | |
454 | res = result; | |
455 | ||
456 | parents = commit->parents; | |
7b35efd7 JS |
457 | if (name && parents) { |
458 | int len = strlen(name), power; | |
459 | ||
460 | if (len && name[len - 1] == '^') { | |
461 | generation = 1; | |
462 | name_prefix_len = len - 1; | |
463 | } | |
464 | else { /* parse ~<generation> suffix */ | |
465 | for (generation = 0, power = 1; | |
466 | len && isdigit(name[len - 1]); | |
467 | power *= 10) | |
468 | generation += power * (name[--len] - '0'); | |
469 | if (power > 1 && len && name[len - 1] == '~') | |
470 | name_prefix_len = len - 1; | |
471 | } | |
472 | } | |
473 | ||
355885d5 | 474 | while (parents) { |
7b35efd7 JS |
475 | if (name) { |
476 | struct object *obj = &parents->item->object; | |
477 | ||
478 | if (++counter > 1) | |
479 | put_object_name(options, obj, "%s^%d", | |
480 | name, counter); | |
481 | else if (generation > 0) | |
482 | put_object_name(options, obj, "%.*s~%d", | |
483 | name_prefix_len, name, generation + 1); | |
484 | else | |
485 | put_object_name(options, obj, "%s^", name); | |
486 | } | |
22410549 | 487 | result = options->walk((struct object *)parents->item, OBJ_COMMIT, data, options); |
355885d5 MK |
488 | if (result < 0) |
489 | return result; | |
490 | if (!res) | |
491 | res = result; | |
492 | parents = parents->next; | |
493 | } | |
494 | return res; | |
495 | } | |
496 | ||
22410549 | 497 | static int fsck_walk_tag(struct tag *tag, void *data, struct fsck_options *options) |
355885d5 | 498 | { |
7b35efd7 JS |
499 | char *name = get_object_name(options, &tag->object); |
500 | ||
355885d5 MK |
501 | if (parse_tag(tag)) |
502 | return -1; | |
7b35efd7 JS |
503 | if (name) |
504 | put_object_name(options, tag->tagged, "%s", name); | |
22410549 | 505 | return options->walk(tag->tagged, OBJ_ANY, data, options); |
355885d5 MK |
506 | } |
507 | ||
22410549 | 508 | int fsck_walk(struct object *obj, void *data, struct fsck_options *options) |
355885d5 MK |
509 | { |
510 | if (!obj) | |
511 | return -1; | |
a2b22854 JK |
512 | |
513 | if (obj->type == OBJ_NONE) | |
c251c83d | 514 | parse_object(&obj->oid); |
a2b22854 | 515 | |
355885d5 MK |
516 | switch (obj->type) { |
517 | case OBJ_BLOB: | |
518 | return 0; | |
519 | case OBJ_TREE: | |
22410549 | 520 | return fsck_walk_tree((struct tree *)obj, data, options); |
355885d5 | 521 | case OBJ_COMMIT: |
22410549 | 522 | return fsck_walk_commit((struct commit *)obj, data, options); |
355885d5 | 523 | case OBJ_TAG: |
22410549 | 524 | return fsck_walk_tag((struct tag *)obj, data, options); |
355885d5 | 525 | default: |
90cf590f | 526 | error("Unknown object type for %s", describe_object(options, obj)); |
355885d5 MK |
527 | return -1; |
528 | } | |
529 | } | |
ba002f3b MK |
530 | |
531 | /* | |
532 | * The entries in a tree are ordered in the _path_ order, | |
533 | * which means that a directory entry is ordered by adding | |
534 | * a slash to the end of it. | |
535 | * | |
536 | * So a directory called "a" is ordered _after_ a file | |
537 | * called "a.c", because "a/" sorts after "a.c". | |
538 | */ | |
539 | #define TREE_UNORDERED (-1) | |
540 | #define TREE_HAS_DUPS (-2) | |
541 | ||
542 | static int verify_ordered(unsigned mode1, const char *name1, unsigned mode2, const char *name2) | |
543 | { | |
544 | int len1 = strlen(name1); | |
545 | int len2 = strlen(name2); | |
546 | int len = len1 < len2 ? len1 : len2; | |
547 | unsigned char c1, c2; | |
548 | int cmp; | |
549 | ||
550 | cmp = memcmp(name1, name2, len); | |
551 | if (cmp < 0) | |
552 | return 0; | |
553 | if (cmp > 0) | |
554 | return TREE_UNORDERED; | |
555 | ||
556 | /* | |
557 | * Ok, the first <len> characters are the same. | |
558 | * Now we need to order the next one, but turn | |
559 | * a '\0' into a '/' for a directory entry. | |
560 | */ | |
561 | c1 = name1[len]; | |
562 | c2 = name2[len]; | |
563 | if (!c1 && !c2) | |
564 | /* | |
565 | * git-write-tree used to write out a nonsense tree that has | |
566 | * entries with the same name, one blob and one tree. Make | |
567 | * sure we do not have duplicate entries. | |
568 | */ | |
569 | return TREE_HAS_DUPS; | |
570 | if (!c1 && S_ISDIR(mode1)) | |
571 | c1 = '/'; | |
572 | if (!c2 && S_ISDIR(mode2)) | |
573 | c2 = '/'; | |
574 | return c1 < c2 ? 0 : TREE_UNORDERED; | |
575 | } | |
576 | ||
22410549 | 577 | static int fsck_tree(struct tree *item, struct fsck_options *options) |
ba002f3b | 578 | { |
8354fa3d | 579 | int retval = 0; |
c479d14a | 580 | int has_null_sha1 = 0; |
ba002f3b MK |
581 | int has_full_path = 0; |
582 | int has_empty_name = 0; | |
5d34a435 JK |
583 | int has_dot = 0; |
584 | int has_dotdot = 0; | |
5c17f512 | 585 | int has_dotgit = 0; |
ba002f3b MK |
586 | int has_zero_pad = 0; |
587 | int has_bad_modes = 0; | |
588 | int has_dup_entries = 0; | |
589 | int not_properly_sorted = 0; | |
590 | struct tree_desc desc; | |
591 | unsigned o_mode; | |
592 | const char *o_name; | |
ba002f3b | 593 | |
8354fa3d DT |
594 | if (init_tree_desc_gently(&desc, item->buffer, item->size)) { |
595 | retval += report(options, &item->object, FSCK_MSG_BAD_TREE, "cannot be parsed as a tree"); | |
596 | return retval; | |
597 | } | |
ba002f3b MK |
598 | |
599 | o_mode = 0; | |
600 | o_name = NULL; | |
ba002f3b MK |
601 | |
602 | while (desc.size) { | |
603 | unsigned mode; | |
604 | const char *name; | |
ce6663a9 | 605 | const struct object_id *oid; |
ba002f3b | 606 | |
ce6663a9 | 607 | oid = tree_entry_extract(&desc, &name, &mode); |
ba002f3b | 608 | |
ce6663a9 | 609 | has_null_sha1 |= is_null_oid(oid); |
effd12ec HS |
610 | has_full_path |= !!strchr(name, '/'); |
611 | has_empty_name |= !*name; | |
612 | has_dot |= !strcmp(name, "."); | |
613 | has_dotdot |= !strcmp(name, ".."); | |
ed9c3220 | 614 | has_dotgit |= is_hfs_dotgit(name) || is_ntfs_dotgit(name); |
ba002f3b | 615 | has_zero_pad |= *(char *)desc.buffer == '0'; |
159e7b08 | 616 | |
b7b1fca1 JK |
617 | if (is_hfs_dotgitmodules(name) || is_ntfs_dotgitmodules(name)) { |
618 | if (!S_ISLNK(mode)) | |
619 | oidset_insert(&gitmodules_found, oid); | |
620 | else | |
621 | retval += report(options, &item->object, | |
622 | FSCK_MSG_GITMODULES_SYMLINK, | |
623 | ".gitmodules is a symbolic link"); | |
624 | } | |
159e7b08 | 625 | |
8354fa3d DT |
626 | if (update_tree_entry_gently(&desc)) { |
627 | retval += report(options, &item->object, FSCK_MSG_BAD_TREE, "cannot be parsed as a tree"); | |
628 | break; | |
629 | } | |
ba002f3b MK |
630 | |
631 | switch (mode) { | |
632 | /* | |
633 | * Standard modes.. | |
634 | */ | |
635 | case S_IFREG | 0755: | |
636 | case S_IFREG | 0644: | |
637 | case S_IFLNK: | |
638 | case S_IFDIR: | |
639 | case S_IFGITLINK: | |
640 | break; | |
641 | /* | |
642 | * This is nonstandard, but we had a few of these | |
643 | * early on when we honored the full set of mode | |
644 | * bits.. | |
645 | */ | |
646 | case S_IFREG | 0664: | |
22410549 | 647 | if (!options->strict) |
ba002f3b | 648 | break; |
1cf01a34 | 649 | /* fallthrough */ |
ba002f3b MK |
650 | default: |
651 | has_bad_modes = 1; | |
652 | } | |
653 | ||
654 | if (o_name) { | |
655 | switch (verify_ordered(o_mode, o_name, mode, name)) { | |
656 | case TREE_UNORDERED: | |
657 | not_properly_sorted = 1; | |
658 | break; | |
659 | case TREE_HAS_DUPS: | |
660 | has_dup_entries = 1; | |
661 | break; | |
662 | default: | |
663 | break; | |
664 | } | |
665 | } | |
666 | ||
667 | o_mode = mode; | |
668 | o_name = name; | |
ba002f3b MK |
669 | } |
670 | ||
c479d14a | 671 | if (has_null_sha1) |
c99ba492 | 672 | retval += report(options, &item->object, FSCK_MSG_NULL_SHA1, "contains entries pointing to null sha1"); |
ba002f3b | 673 | if (has_full_path) |
c99ba492 | 674 | retval += report(options, &item->object, FSCK_MSG_FULL_PATHNAME, "contains full pathnames"); |
ba002f3b | 675 | if (has_empty_name) |
c99ba492 | 676 | retval += report(options, &item->object, FSCK_MSG_EMPTY_NAME, "contains empty pathname"); |
5d34a435 | 677 | if (has_dot) |
c99ba492 | 678 | retval += report(options, &item->object, FSCK_MSG_HAS_DOT, "contains '.'"); |
5d34a435 | 679 | if (has_dotdot) |
c99ba492 | 680 | retval += report(options, &item->object, FSCK_MSG_HAS_DOTDOT, "contains '..'"); |
5c17f512 | 681 | if (has_dotgit) |
c99ba492 | 682 | retval += report(options, &item->object, FSCK_MSG_HAS_DOTGIT, "contains '.git'"); |
ba002f3b | 683 | if (has_zero_pad) |
c99ba492 | 684 | retval += report(options, &item->object, FSCK_MSG_ZERO_PADDED_FILEMODE, "contains zero-padded file modes"); |
ba002f3b | 685 | if (has_bad_modes) |
c99ba492 | 686 | retval += report(options, &item->object, FSCK_MSG_BAD_FILEMODE, "contains bad file modes"); |
ba002f3b | 687 | if (has_dup_entries) |
c99ba492 | 688 | retval += report(options, &item->object, FSCK_MSG_DUPLICATE_ENTRIES, "contains duplicate file entries"); |
ba002f3b | 689 | if (not_properly_sorted) |
c99ba492 | 690 | retval += report(options, &item->object, FSCK_MSG_TREE_NOT_SORTED, "not properly sorted"); |
ba002f3b MK |
691 | return retval; |
692 | } | |
693 | ||
84d18c0b | 694 | static int verify_headers(const void *data, unsigned long size, |
b2f44feb | 695 | struct object *obj, struct fsck_options *options) |
4d0d8975 JS |
696 | { |
697 | const char *buffer = (const char *)data; | |
698 | unsigned long i; | |
699 | ||
700 | for (i = 0; i < size; i++) { | |
701 | switch (buffer[i]) { | |
702 | case '\0': | |
c99ba492 JS |
703 | return report(options, obj, |
704 | FSCK_MSG_NUL_IN_HEADER, | |
705 | "unterminated header: NUL at offset %ld", i); | |
4d0d8975 JS |
706 | case '\n': |
707 | if (i + 1 < size && buffer[i + 1] == '\n') | |
708 | return 0; | |
709 | } | |
710 | } | |
711 | ||
84d18c0b JH |
712 | /* |
713 | * We did not find double-LF that separates the header | |
714 | * and the body. Not having a body is not a crime but | |
715 | * we do want to see the terminating LF for the last header | |
716 | * line. | |
717 | */ | |
718 | if (size && buffer[size - 1] == '\n') | |
719 | return 0; | |
720 | ||
c99ba492 JS |
721 | return report(options, obj, |
722 | FSCK_MSG_UNTERMINATED_HEADER, "unterminated header"); | |
4d0d8975 JS |
723 | } |
724 | ||
22410549 | 725 | static int fsck_ident(const char **ident, struct object *obj, struct fsck_options *options) |
daae1922 | 726 | { |
e6826e33 | 727 | const char *p = *ident; |
d4b8de04 JK |
728 | char *end; |
729 | ||
e6826e33 JS |
730 | *ident = strchrnul(*ident, '\n'); |
731 | if (**ident == '\n') | |
732 | (*ident)++; | |
733 | ||
734 | if (*p == '<') | |
c99ba492 | 735 | return report(options, obj, FSCK_MSG_MISSING_NAME_BEFORE_EMAIL, "invalid author/committer line - missing space before email"); |
e6826e33 JS |
736 | p += strcspn(p, "<>\n"); |
737 | if (*p == '>') | |
c99ba492 | 738 | return report(options, obj, FSCK_MSG_BAD_NAME, "invalid author/committer line - bad name"); |
e6826e33 | 739 | if (*p != '<') |
c99ba492 | 740 | return report(options, obj, FSCK_MSG_MISSING_EMAIL, "invalid author/committer line - missing email"); |
e6826e33 | 741 | if (p[-1] != ' ') |
c99ba492 | 742 | return report(options, obj, FSCK_MSG_MISSING_SPACE_BEFORE_EMAIL, "invalid author/committer line - missing space before email"); |
e6826e33 JS |
743 | p++; |
744 | p += strcspn(p, "<>\n"); | |
745 | if (*p != '>') | |
c99ba492 | 746 | return report(options, obj, FSCK_MSG_BAD_EMAIL, "invalid author/committer line - bad email"); |
e6826e33 JS |
747 | p++; |
748 | if (*p != ' ') | |
c99ba492 | 749 | return report(options, obj, FSCK_MSG_MISSING_SPACE_BEFORE_DATE, "invalid author/committer line - missing space before date"); |
e6826e33 JS |
750 | p++; |
751 | if (*p == '0' && p[1] != ' ') | |
c99ba492 | 752 | return report(options, obj, FSCK_MSG_ZERO_PADDED_DATE, "invalid author/committer line - zero-padded date"); |
1aeb7e75 | 753 | if (date_overflows(parse_timestamp(p, &end, 10))) |
c99ba492 | 754 | return report(options, obj, FSCK_MSG_BAD_DATE_OVERFLOW, "invalid author/committer line - date causes integer overflow"); |
e6826e33 | 755 | if ((end == p || *end != ' ')) |
c99ba492 | 756 | return report(options, obj, FSCK_MSG_BAD_DATE, "invalid author/committer line - bad date"); |
e6826e33 JS |
757 | p = end + 1; |
758 | if ((*p != '+' && *p != '-') || | |
759 | !isdigit(p[1]) || | |
760 | !isdigit(p[2]) || | |
761 | !isdigit(p[3]) || | |
762 | !isdigit(p[4]) || | |
763 | (p[5] != '\n')) | |
c99ba492 | 764 | return report(options, obj, FSCK_MSG_BAD_TIMEZONE, "invalid author/committer line - bad time zone"); |
e6826e33 | 765 | p += 6; |
daae1922 JN |
766 | return 0; |
767 | } | |
768 | ||
bc6b8fc1 | 769 | static int fsck_commit_buffer(struct commit *commit, const char *buffer, |
22410549 | 770 | unsigned long size, struct fsck_options *options) |
ba002f3b | 771 | { |
c54f5ca9 | 772 | struct object_id tree_oid, oid; |
ba002f3b | 773 | struct commit_graft *graft; |
c9ad147f | 774 | unsigned parent_count, parent_line_count = 0, author_count; |
daae1922 | 775 | int err; |
6d2d780f | 776 | const char *buffer_begin = buffer; |
c54f5ca9 | 777 | const char *p; |
ba002f3b | 778 | |
b2f44feb | 779 | if (verify_headers(buffer, size, &commit->object, options)) |
4d0d8975 JS |
780 | return -1; |
781 | ||
cf4fff57 | 782 | if (!skip_prefix(buffer, "tree ", &buffer)) |
c99ba492 | 783 | return report(options, &commit->object, FSCK_MSG_MISSING_TREE, "invalid format - expected 'tree' line"); |
c54f5ca9 | 784 | if (parse_oid_hex(buffer, &tree_oid, &p) || *p != '\n') { |
b3584761 JS |
785 | err = report(options, &commit->object, FSCK_MSG_BAD_TREE_SHA1, "invalid 'tree' line format - bad sha1"); |
786 | if (err) | |
787 | return err; | |
788 | } | |
c54f5ca9 | 789 | buffer = p + 1; |
cf4fff57 | 790 | while (skip_prefix(buffer, "parent ", &buffer)) { |
c54f5ca9 | 791 | if (parse_oid_hex(buffer, &oid, &p) || *p != '\n') { |
b3584761 JS |
792 | err = report(options, &commit->object, FSCK_MSG_BAD_PARENT_SHA1, "invalid 'parent' line format - bad sha1"); |
793 | if (err) | |
794 | return err; | |
795 | } | |
c54f5ca9 | 796 | buffer = p + 1; |
9d02150c | 797 | parent_line_count++; |
ba002f3b | 798 | } |
1f93ecd1 | 799 | graft = lookup_commit_graft(the_repository, &commit->object.oid); |
9d02150c | 800 | parent_count = commit_list_count(commit->parents); |
ba002f3b | 801 | if (graft) { |
9d02150c | 802 | if (graft->nr_parent == -1 && !parent_count) |
ba002f3b | 803 | ; /* shallow commit */ |
b3584761 JS |
804 | else if (graft->nr_parent != parent_count) { |
805 | err = report(options, &commit->object, FSCK_MSG_MISSING_GRAFT, "graft objects missing"); | |
806 | if (err) | |
807 | return err; | |
808 | } | |
ba002f3b | 809 | } else { |
b3584761 JS |
810 | if (parent_count != parent_line_count) { |
811 | err = report(options, &commit->object, FSCK_MSG_MISSING_PARENT, "parent objects missing"); | |
812 | if (err) | |
813 | return err; | |
814 | } | |
ba002f3b | 815 | } |
c9ad147f JS |
816 | author_count = 0; |
817 | while (skip_prefix(buffer, "author ", &buffer)) { | |
818 | author_count++; | |
819 | err = fsck_ident(&buffer, &commit->object, options); | |
820 | if (err) | |
821 | return err; | |
ba002f3b | 822 | } |
c9ad147f JS |
823 | if (author_count < 1) |
824 | err = report(options, &commit->object, FSCK_MSG_MISSING_AUTHOR, "invalid format - expected 'author' line"); | |
825 | else if (author_count > 1) | |
826 | err = report(options, &commit->object, FSCK_MSG_MULTIPLE_AUTHORS, "invalid format - multiple 'author' lines"); | |
daae1922 JN |
827 | if (err) |
828 | return err; | |
cf4fff57 | 829 | if (!skip_prefix(buffer, "committer ", &buffer)) |
c99ba492 | 830 | return report(options, &commit->object, FSCK_MSG_MISSING_COMMITTER, "invalid format - expected 'committer' line"); |
22410549 | 831 | err = fsck_ident(&buffer, &commit->object, options); |
daae1922 JN |
832 | if (err) |
833 | return err; | |
2e27bd77 | 834 | if (!get_commit_tree(commit)) { |
c54f5ca9 | 835 | err = report(options, &commit->object, FSCK_MSG_BAD_TREE, "could not load commit's tree %s", oid_to_hex(&tree_oid)); |
5af29718 JH |
836 | if (err) |
837 | return err; | |
838 | } | |
6d2d780f JH |
839 | if (memchr(buffer_begin, '\0', size)) { |
840 | err = report(options, &commit->object, FSCK_MSG_NUL_IN_COMMIT, | |
841 | "NUL byte in the commit object body"); | |
842 | if (err) | |
843 | return err; | |
844 | } | |
ba002f3b MK |
845 | return 0; |
846 | } | |
847 | ||
90a398bb | 848 | static int fsck_commit(struct commit *commit, const char *data, |
22410549 | 849 | unsigned long size, struct fsck_options *options) |
bc6b8fc1 | 850 | { |
90a398bb | 851 | const char *buffer = data ? data : get_commit_buffer(commit, &size); |
22410549 | 852 | int ret = fsck_commit_buffer(commit, buffer, size, options); |
90a398bb JS |
853 | if (!data) |
854 | unuse_commit_buffer(commit, buffer); | |
bc6b8fc1 JK |
855 | return ret; |
856 | } | |
857 | ||
cec097be | 858 | static int fsck_tag_buffer(struct tag *tag, const char *data, |
22410549 | 859 | unsigned long size, struct fsck_options *options) |
cec097be | 860 | { |
c54f5ca9 | 861 | struct object_id oid; |
cec097be JS |
862 | int ret = 0; |
863 | const char *buffer; | |
864 | char *to_free = NULL, *eol; | |
865 | struct strbuf sb = STRBUF_INIT; | |
c54f5ca9 | 866 | const char *p; |
cec097be JS |
867 | |
868 | if (data) | |
869 | buffer = data; | |
870 | else { | |
871 | enum object_type type; | |
872 | ||
873 | buffer = to_free = | |
b4f5aca4 | 874 | read_object_file(&tag->object.oid, &type, &size); |
cec097be | 875 | if (!buffer) |
c99ba492 JS |
876 | return report(options, &tag->object, |
877 | FSCK_MSG_MISSING_TAG_OBJECT, | |
cec097be JS |
878 | "cannot read tag object"); |
879 | ||
880 | if (type != OBJ_TAG) { | |
c99ba492 JS |
881 | ret = report(options, &tag->object, |
882 | FSCK_MSG_TAG_OBJECT_NOT_TAG, | |
cec097be | 883 | "expected tag got %s", |
debca9d2 | 884 | type_name(type)); |
cec097be JS |
885 | goto done; |
886 | } | |
887 | } | |
888 | ||
8a272f29 RS |
889 | ret = verify_headers(buffer, size, &tag->object, options); |
890 | if (ret) | |
cec097be JS |
891 | goto done; |
892 | ||
893 | if (!skip_prefix(buffer, "object ", &buffer)) { | |
c99ba492 | 894 | ret = report(options, &tag->object, FSCK_MSG_MISSING_OBJECT, "invalid format - expected 'object' line"); |
cec097be JS |
895 | goto done; |
896 | } | |
c54f5ca9 | 897 | if (parse_oid_hex(buffer, &oid, &p) || *p != '\n') { |
c99ba492 | 898 | ret = report(options, &tag->object, FSCK_MSG_BAD_OBJECT_SHA1, "invalid 'object' line format - bad sha1"); |
7d7d5b05 JS |
899 | if (ret) |
900 | goto done; | |
cec097be | 901 | } |
c54f5ca9 | 902 | buffer = p + 1; |
cec097be JS |
903 | |
904 | if (!skip_prefix(buffer, "type ", &buffer)) { | |
c99ba492 | 905 | ret = report(options, &tag->object, FSCK_MSG_MISSING_TYPE_ENTRY, "invalid format - expected 'type' line"); |
cec097be JS |
906 | goto done; |
907 | } | |
908 | eol = strchr(buffer, '\n'); | |
909 | if (!eol) { | |
c99ba492 | 910 | ret = report(options, &tag->object, FSCK_MSG_MISSING_TYPE, "invalid format - unexpected end after 'type' line"); |
cec097be JS |
911 | goto done; |
912 | } | |
913 | if (type_from_string_gently(buffer, eol - buffer, 1) < 0) | |
c99ba492 | 914 | ret = report(options, &tag->object, FSCK_MSG_BAD_TYPE, "invalid 'type' value"); |
cec097be JS |
915 | if (ret) |
916 | goto done; | |
917 | buffer = eol + 1; | |
918 | ||
919 | if (!skip_prefix(buffer, "tag ", &buffer)) { | |
c99ba492 | 920 | ret = report(options, &tag->object, FSCK_MSG_MISSING_TAG_ENTRY, "invalid format - expected 'tag' line"); |
cec097be JS |
921 | goto done; |
922 | } | |
923 | eol = strchr(buffer, '\n'); | |
924 | if (!eol) { | |
c99ba492 | 925 | ret = report(options, &tag->object, FSCK_MSG_MISSING_TAG, "invalid format - unexpected end after 'type' line"); |
cec097be JS |
926 | goto done; |
927 | } | |
928 | strbuf_addf(&sb, "refs/tags/%.*s", (int)(eol - buffer), buffer); | |
f27d05b1 JS |
929 | if (check_refname_format(sb.buf, 0)) { |
930 | ret = report(options, &tag->object, FSCK_MSG_BAD_TAG_NAME, | |
c99ba492 | 931 | "invalid 'tag' name: %.*s", |
7add4419 | 932 | (int)(eol - buffer), buffer); |
f27d05b1 JS |
933 | if (ret) |
934 | goto done; | |
935 | } | |
cec097be JS |
936 | buffer = eol + 1; |
937 | ||
f27d05b1 | 938 | if (!skip_prefix(buffer, "tagger ", &buffer)) { |
cec097be | 939 | /* early tags do not contain 'tagger' lines; warn only */ |
f27d05b1 JS |
940 | ret = report(options, &tag->object, FSCK_MSG_MISSING_TAGGER_ENTRY, "invalid format - expected 'tagger' line"); |
941 | if (ret) | |
942 | goto done; | |
943 | } | |
cec097be | 944 | else |
22410549 | 945 | ret = fsck_ident(&buffer, &tag->object, options); |
cec097be JS |
946 | |
947 | done: | |
948 | strbuf_release(&sb); | |
949 | free(to_free); | |
950 | return ret; | |
951 | } | |
952 | ||
90a398bb | 953 | static int fsck_tag(struct tag *tag, const char *data, |
22410549 | 954 | unsigned long size, struct fsck_options *options) |
ba002f3b MK |
955 | { |
956 | struct object *tagged = tag->tagged; | |
957 | ||
958 | if (!tagged) | |
c99ba492 | 959 | return report(options, &tag->object, FSCK_MSG_BAD_TAG_OBJECT, "could not load tagged object"); |
cec097be | 960 | |
22410549 | 961 | return fsck_tag_buffer(tag, data, size, options); |
ba002f3b MK |
962 | } |
963 | ||
ed8b10f6 JK |
964 | struct fsck_gitmodules_data { |
965 | struct object *obj; | |
966 | struct fsck_options *options; | |
967 | int ret; | |
968 | }; | |
969 | ||
970 | static int fsck_gitmodules_fn(const char *var, const char *value, void *vdata) | |
971 | { | |
972 | struct fsck_gitmodules_data *data = vdata; | |
973 | const char *subsection, *key; | |
974 | int subsection_len; | |
975 | char *name; | |
976 | ||
977 | if (parse_config_key(var, "submodule", &subsection, &subsection_len, &key) < 0 || | |
978 | !subsection) | |
979 | return 0; | |
980 | ||
981 | name = xmemdupz(subsection, subsection_len); | |
982 | if (check_submodule_name(name) < 0) | |
983 | data->ret |= report(data->options, data->obj, | |
984 | FSCK_MSG_GITMODULES_NAME, | |
985 | "disallowed submodule name: %s", | |
986 | name); | |
987 | free(name); | |
988 | ||
989 | return 0; | |
990 | } | |
991 | ||
7ac4f3a0 JK |
992 | static int fsck_blob(struct blob *blob, const char *buf, |
993 | unsigned long size, struct fsck_options *options) | |
994 | { | |
ed8b10f6 JK |
995 | struct fsck_gitmodules_data data; |
996 | ||
997 | if (!oidset_contains(&gitmodules_found, &blob->object.oid)) | |
998 | return 0; | |
999 | oidset_insert(&gitmodules_done, &blob->object.oid); | |
1000 | ||
1001 | if (!buf) { | |
1002 | /* | |
1003 | * A missing buffer here is a sign that the caller found the | |
1004 | * blob too gigantic to load into memory. Let's just consider | |
1005 | * that an error. | |
1006 | */ | |
1007 | return report(options, &blob->object, | |
1008 | FSCK_MSG_GITMODULES_PARSE, | |
1009 | ".gitmodules too large to parse"); | |
1010 | } | |
1011 | ||
1012 | data.obj = &blob->object; | |
1013 | data.options = options; | |
1014 | data.ret = 0; | |
1015 | if (git_config_from_mem(fsck_gitmodules_fn, CONFIG_ORIGIN_BLOB, | |
1016 | ".gitmodules", buf, size, &data)) | |
1017 | data.ret |= report(options, &blob->object, | |
1018 | FSCK_MSG_GITMODULES_PARSE, | |
1019 | "could not parse gitmodules blob"); | |
1020 | ||
1021 | return data.ret; | |
7ac4f3a0 JK |
1022 | } |
1023 | ||
90a398bb | 1024 | int fsck_object(struct object *obj, void *data, unsigned long size, |
22410549 | 1025 | struct fsck_options *options) |
ba002f3b MK |
1026 | { |
1027 | if (!obj) | |
c99ba492 | 1028 | return report(options, obj, FSCK_MSG_BAD_OBJECT_SHA1, "no valid object to fsck"); |
ba002f3b MK |
1029 | |
1030 | if (obj->type == OBJ_BLOB) | |
7ac4f3a0 | 1031 | return fsck_blob((struct blob *)obj, data, size, options); |
ba002f3b | 1032 | if (obj->type == OBJ_TREE) |
22410549 | 1033 | return fsck_tree((struct tree *) obj, options); |
ba002f3b | 1034 | if (obj->type == OBJ_COMMIT) |
90a398bb | 1035 | return fsck_commit((struct commit *) obj, (const char *) data, |
22410549 | 1036 | size, options); |
ba002f3b | 1037 | if (obj->type == OBJ_TAG) |
90a398bb | 1038 | return fsck_tag((struct tag *) obj, (const char *) data, |
22410549 | 1039 | size, options); |
ba002f3b | 1040 | |
c99ba492 | 1041 | return report(options, obj, FSCK_MSG_UNKNOWN_TYPE, "unknown type '%d' (internal fsck error)", |
ba002f3b MK |
1042 | obj->type); |
1043 | } | |
d6ffc8d7 | 1044 | |
1cd772cc JS |
1045 | int fsck_error_function(struct fsck_options *o, |
1046 | struct object *obj, int msg_type, const char *message) | |
d6ffc8d7 | 1047 | { |
0282f4dc | 1048 | if (msg_type == FSCK_WARN) { |
90cf590f | 1049 | warning("object %s: %s", describe_object(o, obj), message); |
0282f4dc JS |
1050 | return 0; |
1051 | } | |
90cf590f | 1052 | error("object %s: %s", describe_object(o, obj), message); |
d6ffc8d7 MK |
1053 | return 1; |
1054 | } | |
159e7b08 JK |
1055 | |
1056 | int fsck_finish(struct fsck_options *options) | |
1057 | { | |
1058 | int ret = 0; | |
1059 | struct oidset_iter iter; | |
1060 | const struct object_id *oid; | |
1061 | ||
1062 | oidset_iter_init(&gitmodules_found, &iter); | |
1063 | while ((oid = oidset_iter_next(&iter))) { | |
1064 | struct blob *blob; | |
1065 | enum object_type type; | |
1066 | unsigned long size; | |
1067 | char *buf; | |
1068 | ||
1069 | if (oidset_contains(&gitmodules_done, oid)) | |
1070 | continue; | |
1071 | ||
1072 | blob = lookup_blob(oid); | |
1073 | if (!blob) { | |
47cc9131 JK |
1074 | struct object *obj = lookup_unknown_object(oid->hash); |
1075 | ret |= report(options, obj, | |
159e7b08 JK |
1076 | FSCK_MSG_GITMODULES_BLOB, |
1077 | "non-blob found at .gitmodules"); | |
1078 | continue; | |
1079 | } | |
1080 | ||
7913f53b | 1081 | buf = read_object_file(oid, &type, &size); |
159e7b08 | 1082 | if (!buf) { |
27387444 JK |
1083 | if (is_promisor_object(&blob->object.oid)) |
1084 | continue; | |
159e7b08 JK |
1085 | ret |= report(options, &blob->object, |
1086 | FSCK_MSG_GITMODULES_MISSING, | |
1087 | "unable to read .gitmodules blob"); | |
1088 | continue; | |
1089 | } | |
1090 | ||
1091 | if (type == OBJ_BLOB) | |
1092 | ret |= fsck_blob(blob, buf, size, options); | |
1093 | else | |
1094 | ret |= report(options, &blob->object, | |
1095 | FSCK_MSG_GITMODULES_BLOB, | |
1096 | "non-blob found at .gitmodules"); | |
1097 | free(buf); | |
1098 | } | |
1099 | ||
1100 | ||
1101 | oidset_clear(&gitmodules_found); | |
1102 | oidset_clear(&gitmodules_done); | |
1103 | return ret; | |
1104 | } |