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Commit | Line | Data |
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355885d5 | 1 | #include "cache.h" |
cbd53a21 | 2 | #include "object-store.h" |
109cd76d | 3 | #include "repository.h" |
355885d5 MK |
4 | #include "object.h" |
5 | #include "blob.h" | |
6 | #include "tree.h" | |
7 | #include "tree-walk.h" | |
8 | #include "commit.h" | |
9 | #include "tag.h" | |
10 | #include "fsck.h" | |
cec097be | 11 | #include "refs.h" |
a18fcc9f | 12 | #include "utf8.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) \ | |
0d68764d | 66 | FUNC(GITMODULES_LARGE, ERROR) \ |
ed8b10f6 | 67 | FUNC(GITMODULES_NAME, ERROR) \ |
b7b1fca1 | 68 | FUNC(GITMODULES_SYMLINK, ERROR) \ |
a124133e | 69 | FUNC(GITMODULES_URL, ERROR) \ |
1a7fd1fb | 70 | FUNC(GITMODULES_PATH, ERROR) \ |
bb92255e | 71 | FUNC(GITMODULES_UPDATE, ERROR) \ |
c99ba492 JS |
72 | /* warnings */ \ |
73 | FUNC(BAD_FILEMODE, WARN) \ | |
c99ba492 JS |
74 | FUNC(EMPTY_NAME, WARN) \ |
75 | FUNC(FULL_PATHNAME, WARN) \ | |
76 | FUNC(HAS_DOT, WARN) \ | |
77 | FUNC(HAS_DOTDOT, WARN) \ | |
78 | FUNC(HAS_DOTGIT, WARN) \ | |
c99ba492 | 79 | FUNC(NULL_SHA1, WARN) \ |
f27d05b1 | 80 | FUNC(ZERO_PADDED_FILEMODE, WARN) \ |
6d2d780f | 81 | FUNC(NUL_IN_COMMIT, WARN) \ |
f27d05b1 | 82 | /* infos (reported as warnings, but ignored by default) */ \ |
64eb14d3 | 83 | FUNC(GITMODULES_PARSE, INFO) \ |
f27d05b1 JS |
84 | FUNC(BAD_TAG_NAME, INFO) \ |
85 | FUNC(MISSING_TAGGER_ENTRY, INFO) | |
c99ba492 JS |
86 | |
87 | #define MSG_ID(id, msg_type) FSCK_MSG_##id, | |
88 | enum fsck_msg_id { | |
89 | FOREACH_MSG_ID(MSG_ID) | |
90 | FSCK_MSG_MAX | |
91 | }; | |
92 | #undef MSG_ID | |
93 | ||
f417eed8 | 94 | #define STR(x) #x |
a4a9cc19 | 95 | #define MSG_ID(id, msg_type) { STR(id), NULL, NULL, FSCK_##msg_type }, |
c99ba492 | 96 | static struct { |
f417eed8 JS |
97 | const char *id_string; |
98 | const char *downcased; | |
a4a9cc19 | 99 | const char *camelcased; |
c99ba492 JS |
100 | int msg_type; |
101 | } msg_id_info[FSCK_MSG_MAX + 1] = { | |
102 | FOREACH_MSG_ID(MSG_ID) | |
a4a9cc19 | 103 | { NULL, NULL, NULL, -1 } |
c99ba492 JS |
104 | }; |
105 | #undef MSG_ID | |
106 | ||
a46baac6 | 107 | static void prepare_msg_ids(void) |
f417eed8 JS |
108 | { |
109 | int i; | |
110 | ||
a46baac6 NTND |
111 | if (msg_id_info[0].downcased) |
112 | return; | |
113 | ||
114 | /* convert id_string to lower case, without underscores. */ | |
115 | for (i = 0; i < FSCK_MSG_MAX; i++) { | |
116 | const char *p = msg_id_info[i].id_string; | |
117 | int len = strlen(p); | |
118 | char *q = xmalloc(len); | |
119 | ||
120 | msg_id_info[i].downcased = q; | |
121 | while (*p) | |
122 | if (*p == '_') | |
123 | p++; | |
124 | else | |
125 | *(q)++ = tolower(*(p)++); | |
126 | *q = '\0'; | |
a4a9cc19 NTND |
127 | |
128 | p = msg_id_info[i].id_string; | |
129 | q = xmalloc(len); | |
130 | msg_id_info[i].camelcased = q; | |
131 | while (*p) { | |
132 | if (*p == '_') { | |
133 | p++; | |
134 | if (*p) | |
135 | *q++ = *p++; | |
136 | } else { | |
137 | *q++ = tolower(*p++); | |
138 | } | |
f417eed8 | 139 | } |
a4a9cc19 | 140 | *q = '\0'; |
f417eed8 | 141 | } |
a46baac6 NTND |
142 | } |
143 | ||
144 | static int parse_msg_id(const char *text) | |
145 | { | |
146 | int i; | |
147 | ||
148 | prepare_msg_ids(); | |
f417eed8 JS |
149 | |
150 | for (i = 0; i < FSCK_MSG_MAX; i++) | |
151 | if (!strcmp(text, msg_id_info[i].downcased)) | |
152 | return i; | |
153 | ||
154 | return -1; | |
155 | } | |
156 | ||
3ac68a93 NTND |
157 | void list_config_fsck_msg_ids(struct string_list *list, const char *prefix) |
158 | { | |
159 | int i; | |
160 | ||
161 | prepare_msg_ids(); | |
162 | ||
3ac68a93 | 163 | for (i = 0; i < FSCK_MSG_MAX; i++) |
a4a9cc19 | 164 | list_config_item(list, prefix, msg_id_info[i].camelcased); |
3ac68a93 NTND |
165 | } |
166 | ||
c99ba492 JS |
167 | static int fsck_msg_type(enum fsck_msg_id msg_id, |
168 | struct fsck_options *options) | |
169 | { | |
170 | int msg_type; | |
171 | ||
0282f4dc JS |
172 | assert(msg_id >= 0 && msg_id < FSCK_MSG_MAX); |
173 | ||
174 | if (options->msg_type) | |
175 | msg_type = options->msg_type[msg_id]; | |
176 | else { | |
177 | msg_type = msg_id_info[msg_id].msg_type; | |
178 | if (options->strict && msg_type == FSCK_WARN) | |
179 | msg_type = FSCK_ERROR; | |
180 | } | |
c99ba492 JS |
181 | |
182 | return msg_type; | |
183 | } | |
184 | ||
cd94c6f9 JS |
185 | static void init_skiplist(struct fsck_options *options, const char *path) |
186 | { | |
fb895207 RS |
187 | FILE *fp; |
188 | struct strbuf sb = STRBUF_INIT; | |
365c27fb | 189 | struct object_id oid; |
cd94c6f9 | 190 | |
fb895207 RS |
191 | fp = fopen(path, "r"); |
192 | if (!fp) | |
cd94c6f9 | 193 | die("Could not open skip list: %s", path); |
fb895207 | 194 | while (!strbuf_getline(&sb, fp)) { |
365c27fb | 195 | const char *p; |
371a6550 ÆAB |
196 | const char *hash; |
197 | ||
198 | /* | |
199 | * Allow trailing comments, leading whitespace | |
200 | * (including before commits), and empty or whitespace | |
201 | * only lines. | |
202 | */ | |
203 | hash = strchr(sb.buf, '#'); | |
204 | if (hash) | |
205 | strbuf_setlen(&sb, hash - sb.buf); | |
206 | strbuf_trim(&sb); | |
207 | if (!sb.len) | |
208 | continue; | |
cd94c6f9 | 209 | |
fb895207 RS |
210 | if (parse_oid_hex(sb.buf, &oid, &p) || *p != '\0') |
211 | die("Invalid SHA-1: %s", sb.buf); | |
3b41fb0c | 212 | oidset_insert(&options->skiplist, &oid); |
cd94c6f9 | 213 | } |
fb895207 RS |
214 | if (ferror(fp)) |
215 | die_errno("Could not read '%s'", path); | |
216 | fclose(fp); | |
217 | strbuf_release(&sb); | |
cd94c6f9 JS |
218 | } |
219 | ||
0282f4dc JS |
220 | static int parse_msg_type(const char *str) |
221 | { | |
222 | if (!strcmp(str, "error")) | |
223 | return FSCK_ERROR; | |
224 | else if (!strcmp(str, "warn")) | |
225 | return FSCK_WARN; | |
efaba7cc JS |
226 | else if (!strcmp(str, "ignore")) |
227 | return FSCK_IGNORE; | |
0282f4dc JS |
228 | else |
229 | die("Unknown fsck message type: '%s'", str); | |
230 | } | |
231 | ||
5d477a33 JS |
232 | int is_valid_msg_type(const char *msg_id, const char *msg_type) |
233 | { | |
234 | if (parse_msg_id(msg_id) < 0) | |
235 | return 0; | |
236 | parse_msg_type(msg_type); | |
237 | return 1; | |
238 | } | |
239 | ||
0282f4dc JS |
240 | void fsck_set_msg_type(struct fsck_options *options, |
241 | const char *msg_id, const char *msg_type) | |
242 | { | |
243 | int id = parse_msg_id(msg_id), type; | |
244 | ||
245 | if (id < 0) | |
246 | die("Unhandled message id: %s", msg_id); | |
247 | type = parse_msg_type(msg_type); | |
248 | ||
f50c4407 JS |
249 | if (type != FSCK_ERROR && msg_id_info[id].msg_type == FSCK_FATAL) |
250 | die("Cannot demote %s to %s", msg_id, msg_type); | |
251 | ||
0282f4dc JS |
252 | if (!options->msg_type) { |
253 | int i; | |
b32fa95f JK |
254 | int *msg_type; |
255 | ALLOC_ARRAY(msg_type, FSCK_MSG_MAX); | |
0282f4dc JS |
256 | for (i = 0; i < FSCK_MSG_MAX; i++) |
257 | msg_type[i] = fsck_msg_type(i, options); | |
258 | options->msg_type = msg_type; | |
259 | } | |
260 | ||
261 | options->msg_type[id] = type; | |
262 | } | |
263 | ||
264 | void fsck_set_msg_types(struct fsck_options *options, const char *values) | |
265 | { | |
266 | char *buf = xstrdup(values), *to_free = buf; | |
267 | int done = 0; | |
268 | ||
269 | while (!done) { | |
270 | int len = strcspn(buf, " ,|"), equal; | |
271 | ||
272 | done = !buf[len]; | |
273 | if (!len) { | |
274 | buf++; | |
275 | continue; | |
276 | } | |
277 | buf[len] = '\0'; | |
278 | ||
279 | for (equal = 0; | |
280 | equal < len && buf[equal] != '=' && buf[equal] != ':'; | |
281 | equal++) | |
282 | buf[equal] = tolower(buf[equal]); | |
283 | buf[equal] = '\0'; | |
284 | ||
cd94c6f9 JS |
285 | if (!strcmp(buf, "skiplist")) { |
286 | if (equal == len) | |
287 | die("skiplist requires a path"); | |
288 | init_skiplist(options, buf + equal + 1); | |
289 | buf += len + 1; | |
290 | continue; | |
291 | } | |
292 | ||
0282f4dc JS |
293 | if (equal == len) |
294 | die("Missing '=': '%s'", buf); | |
355885d5 | 295 | |
0282f4dc JS |
296 | fsck_set_msg_type(options, buf, buf + equal + 1); |
297 | buf += len + 1; | |
298 | } | |
299 | free(to_free); | |
300 | } | |
301 | ||
71ab8fa8 JS |
302 | static void append_msg_id(struct strbuf *sb, const char *msg_id) |
303 | { | |
304 | for (;;) { | |
305 | char c = *(msg_id)++; | |
306 | ||
307 | if (!c) | |
308 | break; | |
309 | if (c != '_') | |
310 | strbuf_addch(sb, tolower(c)); | |
311 | else { | |
312 | assert(*msg_id); | |
313 | strbuf_addch(sb, *(msg_id)++); | |
314 | } | |
315 | } | |
316 | ||
317 | strbuf_addstr(sb, ": "); | |
318 | } | |
319 | ||
fb162877 RJ |
320 | static int object_on_skiplist(struct fsck_options *opts, struct object *obj) |
321 | { | |
3b41fb0c | 322 | return opts && obj && oidset_contains(&opts->skiplist, &obj->oid); |
fb162877 RJ |
323 | } |
324 | ||
c99ba492 JS |
325 | __attribute__((format (printf, 4, 5))) |
326 | static int report(struct fsck_options *options, struct object *object, | |
327 | enum fsck_msg_id id, const char *fmt, ...) | |
328 | { | |
329 | va_list ap; | |
330 | struct strbuf sb = STRBUF_INIT; | |
331 | int msg_type = fsck_msg_type(id, options), result; | |
332 | ||
efaba7cc JS |
333 | if (msg_type == FSCK_IGNORE) |
334 | return 0; | |
335 | ||
fb162877 | 336 | if (object_on_skiplist(options, object)) |
cd94c6f9 JS |
337 | return 0; |
338 | ||
f50c4407 JS |
339 | if (msg_type == FSCK_FATAL) |
340 | msg_type = FSCK_ERROR; | |
f27d05b1 JS |
341 | else if (msg_type == FSCK_INFO) |
342 | msg_type = FSCK_WARN; | |
f50c4407 | 343 | |
71ab8fa8 JS |
344 | append_msg_id(&sb, msg_id_info[id].id_string); |
345 | ||
c99ba492 JS |
346 | va_start(ap, fmt); |
347 | strbuf_vaddf(&sb, fmt, ap); | |
1cd772cc | 348 | result = options->error_func(options, object, msg_type, sb.buf); |
c99ba492 JS |
349 | strbuf_release(&sb); |
350 | va_end(ap); | |
351 | ||
352 | return result; | |
353 | } | |
354 | ||
7b35efd7 JS |
355 | static char *get_object_name(struct fsck_options *options, struct object *obj) |
356 | { | |
357 | if (!options->object_names) | |
358 | return NULL; | |
359 | return lookup_decoration(options->object_names, obj); | |
360 | } | |
361 | ||
362 | static void put_object_name(struct fsck_options *options, struct object *obj, | |
363 | const char *fmt, ...) | |
364 | { | |
365 | va_list ap; | |
366 | struct strbuf buf = STRBUF_INIT; | |
367 | char *existing; | |
368 | ||
369 | if (!options->object_names) | |
370 | return; | |
371 | existing = lookup_decoration(options->object_names, obj); | |
372 | if (existing) | |
373 | return; | |
374 | va_start(ap, fmt); | |
375 | strbuf_vaddf(&buf, fmt, ap); | |
376 | add_decoration(options->object_names, obj, strbuf_detach(&buf, NULL)); | |
377 | va_end(ap); | |
378 | } | |
379 | ||
90cf590f JS |
380 | static const char *describe_object(struct fsck_options *o, struct object *obj) |
381 | { | |
382 | static struct strbuf buf = STRBUF_INIT; | |
383 | char *name; | |
384 | ||
385 | strbuf_reset(&buf); | |
386 | strbuf_addstr(&buf, oid_to_hex(&obj->oid)); | |
387 | if (o->object_names && (name = lookup_decoration(o->object_names, obj))) | |
388 | strbuf_addf(&buf, " (%s)", name); | |
389 | ||
390 | return buf.buf; | |
391 | } | |
392 | ||
22410549 | 393 | static int fsck_walk_tree(struct tree *tree, void *data, struct fsck_options *options) |
355885d5 MK |
394 | { |
395 | struct tree_desc desc; | |
396 | struct name_entry entry; | |
397 | int res = 0; | |
7b35efd7 | 398 | const char *name; |
355885d5 MK |
399 | |
400 | if (parse_tree(tree)) | |
401 | return -1; | |
402 | ||
7b35efd7 | 403 | name = get_object_name(options, &tree->object); |
8354fa3d DT |
404 | if (init_tree_desc_gently(&desc, tree->buffer, tree->size)) |
405 | return -1; | |
406 | while (tree_entry_gently(&desc, &entry)) { | |
7b35efd7 | 407 | struct object *obj; |
355885d5 MK |
408 | int result; |
409 | ||
410 | if (S_ISGITLINK(entry.mode)) | |
411 | continue; | |
7b35efd7 JS |
412 | |
413 | if (S_ISDIR(entry.mode)) { | |
ea82b2a0 | 414 | obj = (struct object *)lookup_tree(the_repository, &entry.oid); |
2720f6db | 415 | if (name && obj) |
7b35efd7 JS |
416 | put_object_name(options, obj, "%s%s/", name, |
417 | entry.path); | |
418 | result = options->walk(obj, OBJ_TREE, data, options); | |
419 | } | |
420 | else if (S_ISREG(entry.mode) || S_ISLNK(entry.mode)) { | |
ea82b2a0 | 421 | obj = (struct object *)lookup_blob(the_repository, &entry.oid); |
2720f6db | 422 | if (name && obj) |
7b35efd7 JS |
423 | put_object_name(options, obj, "%s%s", name, |
424 | entry.path); | |
425 | result = options->walk(obj, OBJ_BLOB, data, options); | |
426 | } | |
355885d5 | 427 | else { |
82247e9b | 428 | result = error("in tree %s: entry %s has bad mode %.6o", |
90cf590f | 429 | describe_object(options, &tree->object), entry.path, entry.mode); |
355885d5 MK |
430 | } |
431 | if (result < 0) | |
432 | return result; | |
433 | if (!res) | |
434 | res = result; | |
435 | } | |
436 | return res; | |
437 | } | |
438 | ||
22410549 | 439 | static int fsck_walk_commit(struct commit *commit, void *data, struct fsck_options *options) |
355885d5 | 440 | { |
7b35efd7 | 441 | int counter = 0, generation = 0, name_prefix_len = 0; |
355885d5 MK |
442 | struct commit_list *parents; |
443 | int res; | |
444 | int result; | |
7b35efd7 | 445 | const char *name; |
355885d5 MK |
446 | |
447 | if (parse_commit(commit)) | |
448 | return -1; | |
449 | ||
7b35efd7 JS |
450 | name = get_object_name(options, &commit->object); |
451 | if (name) | |
2e27bd77 DS |
452 | put_object_name(options, &get_commit_tree(commit)->object, |
453 | "%s:", name); | |
7b35efd7 | 454 | |
2e27bd77 DS |
455 | result = options->walk((struct object *)get_commit_tree(commit), |
456 | OBJ_TREE, data, options); | |
355885d5 MK |
457 | if (result < 0) |
458 | return result; | |
459 | res = result; | |
460 | ||
461 | parents = commit->parents; | |
7b35efd7 JS |
462 | if (name && parents) { |
463 | int len = strlen(name), power; | |
464 | ||
465 | if (len && name[len - 1] == '^') { | |
466 | generation = 1; | |
467 | name_prefix_len = len - 1; | |
468 | } | |
469 | else { /* parse ~<generation> suffix */ | |
470 | for (generation = 0, power = 1; | |
471 | len && isdigit(name[len - 1]); | |
472 | power *= 10) | |
473 | generation += power * (name[--len] - '0'); | |
474 | if (power > 1 && len && name[len - 1] == '~') | |
475 | name_prefix_len = len - 1; | |
476 | } | |
477 | } | |
478 | ||
355885d5 | 479 | while (parents) { |
7b35efd7 JS |
480 | if (name) { |
481 | struct object *obj = &parents->item->object; | |
482 | ||
b84c7838 | 483 | if (counter++) |
7b35efd7 JS |
484 | put_object_name(options, obj, "%s^%d", |
485 | name, counter); | |
486 | else if (generation > 0) | |
487 | put_object_name(options, obj, "%.*s~%d", | |
488 | name_prefix_len, name, generation + 1); | |
489 | else | |
490 | put_object_name(options, obj, "%s^", name); | |
491 | } | |
22410549 | 492 | result = options->walk((struct object *)parents->item, OBJ_COMMIT, data, options); |
355885d5 MK |
493 | if (result < 0) |
494 | return result; | |
495 | if (!res) | |
496 | res = result; | |
497 | parents = parents->next; | |
498 | } | |
499 | return res; | |
500 | } | |
501 | ||
22410549 | 502 | static int fsck_walk_tag(struct tag *tag, void *data, struct fsck_options *options) |
355885d5 | 503 | { |
7b35efd7 JS |
504 | char *name = get_object_name(options, &tag->object); |
505 | ||
355885d5 MK |
506 | if (parse_tag(tag)) |
507 | return -1; | |
7b35efd7 JS |
508 | if (name) |
509 | put_object_name(options, tag->tagged, "%s", name); | |
22410549 | 510 | return options->walk(tag->tagged, OBJ_ANY, data, options); |
355885d5 MK |
511 | } |
512 | ||
22410549 | 513 | int fsck_walk(struct object *obj, void *data, struct fsck_options *options) |
355885d5 MK |
514 | { |
515 | if (!obj) | |
516 | return -1; | |
a2b22854 JK |
517 | |
518 | if (obj->type == OBJ_NONE) | |
109cd76d | 519 | parse_object(the_repository, &obj->oid); |
a2b22854 | 520 | |
355885d5 MK |
521 | switch (obj->type) { |
522 | case OBJ_BLOB: | |
523 | return 0; | |
524 | case OBJ_TREE: | |
22410549 | 525 | return fsck_walk_tree((struct tree *)obj, data, options); |
355885d5 | 526 | case OBJ_COMMIT: |
22410549 | 527 | return fsck_walk_commit((struct commit *)obj, data, options); |
355885d5 | 528 | case OBJ_TAG: |
22410549 | 529 | return fsck_walk_tag((struct tag *)obj, data, options); |
355885d5 | 530 | default: |
90cf590f | 531 | error("Unknown object type for %s", describe_object(options, obj)); |
355885d5 MK |
532 | return -1; |
533 | } | |
534 | } | |
ba002f3b MK |
535 | |
536 | /* | |
537 | * The entries in a tree are ordered in the _path_ order, | |
538 | * which means that a directory entry is ordered by adding | |
539 | * a slash to the end of it. | |
540 | * | |
541 | * So a directory called "a" is ordered _after_ a file | |
542 | * called "a.c", because "a/" sorts after "a.c". | |
543 | */ | |
544 | #define TREE_UNORDERED (-1) | |
545 | #define TREE_HAS_DUPS (-2) | |
546 | ||
547 | static int verify_ordered(unsigned mode1, const char *name1, unsigned mode2, const char *name2) | |
548 | { | |
549 | int len1 = strlen(name1); | |
550 | int len2 = strlen(name2); | |
551 | int len = len1 < len2 ? len1 : len2; | |
552 | unsigned char c1, c2; | |
553 | int cmp; | |
554 | ||
555 | cmp = memcmp(name1, name2, len); | |
556 | if (cmp < 0) | |
557 | return 0; | |
558 | if (cmp > 0) | |
559 | return TREE_UNORDERED; | |
560 | ||
561 | /* | |
562 | * Ok, the first <len> characters are the same. | |
563 | * Now we need to order the next one, but turn | |
564 | * a '\0' into a '/' for a directory entry. | |
565 | */ | |
566 | c1 = name1[len]; | |
567 | c2 = name2[len]; | |
568 | if (!c1 && !c2) | |
569 | /* | |
570 | * git-write-tree used to write out a nonsense tree that has | |
571 | * entries with the same name, one blob and one tree. Make | |
572 | * sure we do not have duplicate entries. | |
573 | */ | |
574 | return TREE_HAS_DUPS; | |
575 | if (!c1 && S_ISDIR(mode1)) | |
576 | c1 = '/'; | |
577 | if (!c2 && S_ISDIR(mode2)) | |
578 | c2 = '/'; | |
579 | return c1 < c2 ? 0 : TREE_UNORDERED; | |
580 | } | |
581 | ||
22410549 | 582 | static int fsck_tree(struct tree *item, struct fsck_options *options) |
ba002f3b | 583 | { |
8354fa3d | 584 | int retval = 0; |
c479d14a | 585 | int has_null_sha1 = 0; |
ba002f3b MK |
586 | int has_full_path = 0; |
587 | int has_empty_name = 0; | |
5d34a435 JK |
588 | int has_dot = 0; |
589 | int has_dotdot = 0; | |
5c17f512 | 590 | int has_dotgit = 0; |
ba002f3b MK |
591 | int has_zero_pad = 0; |
592 | int has_bad_modes = 0; | |
593 | int has_dup_entries = 0; | |
594 | int not_properly_sorted = 0; | |
595 | struct tree_desc desc; | |
596 | unsigned o_mode; | |
597 | const char *o_name; | |
ba002f3b | 598 | |
8354fa3d DT |
599 | if (init_tree_desc_gently(&desc, item->buffer, item->size)) { |
600 | retval += report(options, &item->object, FSCK_MSG_BAD_TREE, "cannot be parsed as a tree"); | |
601 | return retval; | |
602 | } | |
ba002f3b MK |
603 | |
604 | o_mode = 0; | |
605 | o_name = NULL; | |
ba002f3b MK |
606 | |
607 | while (desc.size) { | |
608 | unsigned mode; | |
288a74bc | 609 | const char *name, *backslash; |
ce6663a9 | 610 | const struct object_id *oid; |
ba002f3b | 611 | |
ce6663a9 | 612 | oid = tree_entry_extract(&desc, &name, &mode); |
ba002f3b | 613 | |
ce6663a9 | 614 | has_null_sha1 |= is_null_oid(oid); |
effd12ec HS |
615 | has_full_path |= !!strchr(name, '/'); |
616 | has_empty_name |= !*name; | |
617 | has_dot |= !strcmp(name, "."); | |
618 | has_dotdot |= !strcmp(name, ".."); | |
ed9c3220 | 619 | has_dotgit |= is_hfs_dotgit(name) || is_ntfs_dotgit(name); |
ba002f3b | 620 | has_zero_pad |= *(char *)desc.buffer == '0'; |
159e7b08 | 621 | |
b7b1fca1 JK |
622 | if (is_hfs_dotgitmodules(name) || is_ntfs_dotgitmodules(name)) { |
623 | if (!S_ISLNK(mode)) | |
624 | oidset_insert(&gitmodules_found, oid); | |
625 | else | |
626 | retval += report(options, &item->object, | |
627 | FSCK_MSG_GITMODULES_SYMLINK, | |
628 | ".gitmodules is a symbolic link"); | |
629 | } | |
159e7b08 | 630 | |
288a74bc JS |
631 | if ((backslash = strchr(name, '\\'))) { |
632 | while (backslash) { | |
633 | backslash++; | |
634 | has_dotgit |= is_ntfs_dotgit(backslash); | |
bdfef049 JS |
635 | if (is_ntfs_dotgitmodules(backslash)) { |
636 | if (!S_ISLNK(mode)) | |
637 | oidset_insert(&gitmodules_found, oid); | |
638 | else | |
639 | retval += report(options, &item->object, | |
640 | FSCK_MSG_GITMODULES_SYMLINK, | |
641 | ".gitmodules is a symbolic link"); | |
642 | } | |
288a74bc JS |
643 | backslash = strchr(backslash, '\\'); |
644 | } | |
645 | } | |
646 | ||
8354fa3d DT |
647 | if (update_tree_entry_gently(&desc)) { |
648 | retval += report(options, &item->object, FSCK_MSG_BAD_TREE, "cannot be parsed as a tree"); | |
649 | break; | |
650 | } | |
ba002f3b MK |
651 | |
652 | switch (mode) { | |
653 | /* | |
654 | * Standard modes.. | |
655 | */ | |
656 | case S_IFREG | 0755: | |
657 | case S_IFREG | 0644: | |
658 | case S_IFLNK: | |
659 | case S_IFDIR: | |
660 | case S_IFGITLINK: | |
661 | break; | |
662 | /* | |
663 | * This is nonstandard, but we had a few of these | |
664 | * early on when we honored the full set of mode | |
665 | * bits.. | |
666 | */ | |
667 | case S_IFREG | 0664: | |
22410549 | 668 | if (!options->strict) |
ba002f3b | 669 | break; |
1cf01a34 | 670 | /* fallthrough */ |
ba002f3b MK |
671 | default: |
672 | has_bad_modes = 1; | |
673 | } | |
674 | ||
675 | if (o_name) { | |
676 | switch (verify_ordered(o_mode, o_name, mode, name)) { | |
677 | case TREE_UNORDERED: | |
678 | not_properly_sorted = 1; | |
679 | break; | |
680 | case TREE_HAS_DUPS: | |
681 | has_dup_entries = 1; | |
682 | break; | |
683 | default: | |
684 | break; | |
685 | } | |
686 | } | |
687 | ||
688 | o_mode = mode; | |
689 | o_name = name; | |
ba002f3b MK |
690 | } |
691 | ||
c479d14a | 692 | if (has_null_sha1) |
c99ba492 | 693 | retval += report(options, &item->object, FSCK_MSG_NULL_SHA1, "contains entries pointing to null sha1"); |
ba002f3b | 694 | if (has_full_path) |
c99ba492 | 695 | retval += report(options, &item->object, FSCK_MSG_FULL_PATHNAME, "contains full pathnames"); |
ba002f3b | 696 | if (has_empty_name) |
c99ba492 | 697 | retval += report(options, &item->object, FSCK_MSG_EMPTY_NAME, "contains empty pathname"); |
5d34a435 | 698 | if (has_dot) |
c99ba492 | 699 | retval += report(options, &item->object, FSCK_MSG_HAS_DOT, "contains '.'"); |
5d34a435 | 700 | if (has_dotdot) |
c99ba492 | 701 | retval += report(options, &item->object, FSCK_MSG_HAS_DOTDOT, "contains '..'"); |
5c17f512 | 702 | if (has_dotgit) |
c99ba492 | 703 | retval += report(options, &item->object, FSCK_MSG_HAS_DOTGIT, "contains '.git'"); |
ba002f3b | 704 | if (has_zero_pad) |
c99ba492 | 705 | retval += report(options, &item->object, FSCK_MSG_ZERO_PADDED_FILEMODE, "contains zero-padded file modes"); |
ba002f3b | 706 | if (has_bad_modes) |
c99ba492 | 707 | retval += report(options, &item->object, FSCK_MSG_BAD_FILEMODE, "contains bad file modes"); |
ba002f3b | 708 | if (has_dup_entries) |
c99ba492 | 709 | retval += report(options, &item->object, FSCK_MSG_DUPLICATE_ENTRIES, "contains duplicate file entries"); |
ba002f3b | 710 | if (not_properly_sorted) |
c99ba492 | 711 | retval += report(options, &item->object, FSCK_MSG_TREE_NOT_SORTED, "not properly sorted"); |
ba002f3b MK |
712 | return retval; |
713 | } | |
714 | ||
84d18c0b | 715 | static int verify_headers(const void *data, unsigned long size, |
b2f44feb | 716 | struct object *obj, struct fsck_options *options) |
4d0d8975 JS |
717 | { |
718 | const char *buffer = (const char *)data; | |
719 | unsigned long i; | |
720 | ||
721 | for (i = 0; i < size; i++) { | |
722 | switch (buffer[i]) { | |
723 | case '\0': | |
c99ba492 JS |
724 | return report(options, obj, |
725 | FSCK_MSG_NUL_IN_HEADER, | |
726 | "unterminated header: NUL at offset %ld", i); | |
4d0d8975 JS |
727 | case '\n': |
728 | if (i + 1 < size && buffer[i + 1] == '\n') | |
729 | return 0; | |
730 | } | |
731 | } | |
732 | ||
84d18c0b JH |
733 | /* |
734 | * We did not find double-LF that separates the header | |
735 | * and the body. Not having a body is not a crime but | |
736 | * we do want to see the terminating LF for the last header | |
737 | * line. | |
738 | */ | |
739 | if (size && buffer[size - 1] == '\n') | |
740 | return 0; | |
741 | ||
c99ba492 JS |
742 | return report(options, obj, |
743 | FSCK_MSG_UNTERMINATED_HEADER, "unterminated header"); | |
4d0d8975 JS |
744 | } |
745 | ||
22410549 | 746 | static int fsck_ident(const char **ident, struct object *obj, struct fsck_options *options) |
daae1922 | 747 | { |
e6826e33 | 748 | const char *p = *ident; |
d4b8de04 JK |
749 | char *end; |
750 | ||
e6826e33 JS |
751 | *ident = strchrnul(*ident, '\n'); |
752 | if (**ident == '\n') | |
753 | (*ident)++; | |
754 | ||
755 | if (*p == '<') | |
c99ba492 | 756 | return report(options, obj, FSCK_MSG_MISSING_NAME_BEFORE_EMAIL, "invalid author/committer line - missing space before email"); |
e6826e33 JS |
757 | p += strcspn(p, "<>\n"); |
758 | if (*p == '>') | |
c99ba492 | 759 | return report(options, obj, FSCK_MSG_BAD_NAME, "invalid author/committer line - bad name"); |
e6826e33 | 760 | if (*p != '<') |
c99ba492 | 761 | return report(options, obj, FSCK_MSG_MISSING_EMAIL, "invalid author/committer line - missing email"); |
e6826e33 | 762 | if (p[-1] != ' ') |
c99ba492 | 763 | return report(options, obj, FSCK_MSG_MISSING_SPACE_BEFORE_EMAIL, "invalid author/committer line - missing space before email"); |
e6826e33 JS |
764 | p++; |
765 | p += strcspn(p, "<>\n"); | |
766 | if (*p != '>') | |
c99ba492 | 767 | return report(options, obj, FSCK_MSG_BAD_EMAIL, "invalid author/committer line - bad email"); |
e6826e33 JS |
768 | p++; |
769 | if (*p != ' ') | |
c99ba492 | 770 | return report(options, obj, FSCK_MSG_MISSING_SPACE_BEFORE_DATE, "invalid author/committer line - missing space before date"); |
e6826e33 JS |
771 | p++; |
772 | if (*p == '0' && p[1] != ' ') | |
c99ba492 | 773 | return report(options, obj, FSCK_MSG_ZERO_PADDED_DATE, "invalid author/committer line - zero-padded date"); |
1aeb7e75 | 774 | if (date_overflows(parse_timestamp(p, &end, 10))) |
c99ba492 | 775 | return report(options, obj, FSCK_MSG_BAD_DATE_OVERFLOW, "invalid author/committer line - date causes integer overflow"); |
e6826e33 | 776 | if ((end == p || *end != ' ')) |
c99ba492 | 777 | return report(options, obj, FSCK_MSG_BAD_DATE, "invalid author/committer line - bad date"); |
e6826e33 JS |
778 | p = end + 1; |
779 | if ((*p != '+' && *p != '-') || | |
780 | !isdigit(p[1]) || | |
781 | !isdigit(p[2]) || | |
782 | !isdigit(p[3]) || | |
783 | !isdigit(p[4]) || | |
784 | (p[5] != '\n')) | |
c99ba492 | 785 | return report(options, obj, FSCK_MSG_BAD_TIMEZONE, "invalid author/committer line - bad time zone"); |
e6826e33 | 786 | p += 6; |
daae1922 JN |
787 | return 0; |
788 | } | |
789 | ||
bc6b8fc1 | 790 | static int fsck_commit_buffer(struct commit *commit, const char *buffer, |
22410549 | 791 | unsigned long size, struct fsck_options *options) |
ba002f3b | 792 | { |
c54f5ca9 | 793 | struct object_id tree_oid, oid; |
ba002f3b | 794 | struct commit_graft *graft; |
c9ad147f | 795 | unsigned parent_count, parent_line_count = 0, author_count; |
daae1922 | 796 | int err; |
6d2d780f | 797 | const char *buffer_begin = buffer; |
c54f5ca9 | 798 | const char *p; |
ba002f3b | 799 | |
b2f44feb | 800 | if (verify_headers(buffer, size, &commit->object, options)) |
4d0d8975 JS |
801 | return -1; |
802 | ||
cf4fff57 | 803 | if (!skip_prefix(buffer, "tree ", &buffer)) |
c99ba492 | 804 | return report(options, &commit->object, FSCK_MSG_MISSING_TREE, "invalid format - expected 'tree' line"); |
c54f5ca9 | 805 | if (parse_oid_hex(buffer, &tree_oid, &p) || *p != '\n') { |
b3584761 JS |
806 | err = report(options, &commit->object, FSCK_MSG_BAD_TREE_SHA1, "invalid 'tree' line format - bad sha1"); |
807 | if (err) | |
808 | return err; | |
809 | } | |
c54f5ca9 | 810 | buffer = p + 1; |
cf4fff57 | 811 | while (skip_prefix(buffer, "parent ", &buffer)) { |
c54f5ca9 | 812 | if (parse_oid_hex(buffer, &oid, &p) || *p != '\n') { |
b3584761 JS |
813 | err = report(options, &commit->object, FSCK_MSG_BAD_PARENT_SHA1, "invalid 'parent' line format - bad sha1"); |
814 | if (err) | |
815 | return err; | |
816 | } | |
c54f5ca9 | 817 | buffer = p + 1; |
9d02150c | 818 | parent_line_count++; |
ba002f3b | 819 | } |
1f93ecd1 | 820 | graft = lookup_commit_graft(the_repository, &commit->object.oid); |
9d02150c | 821 | parent_count = commit_list_count(commit->parents); |
ba002f3b | 822 | if (graft) { |
9d02150c | 823 | if (graft->nr_parent == -1 && !parent_count) |
ba002f3b | 824 | ; /* shallow commit */ |
b3584761 JS |
825 | else if (graft->nr_parent != parent_count) { |
826 | err = report(options, &commit->object, FSCK_MSG_MISSING_GRAFT, "graft objects missing"); | |
827 | if (err) | |
828 | return err; | |
829 | } | |
ba002f3b | 830 | } else { |
b3584761 JS |
831 | if (parent_count != parent_line_count) { |
832 | err = report(options, &commit->object, FSCK_MSG_MISSING_PARENT, "parent objects missing"); | |
833 | if (err) | |
834 | return err; | |
835 | } | |
ba002f3b | 836 | } |
c9ad147f JS |
837 | author_count = 0; |
838 | while (skip_prefix(buffer, "author ", &buffer)) { | |
839 | author_count++; | |
840 | err = fsck_ident(&buffer, &commit->object, options); | |
841 | if (err) | |
842 | return err; | |
ba002f3b | 843 | } |
c9ad147f JS |
844 | if (author_count < 1) |
845 | err = report(options, &commit->object, FSCK_MSG_MISSING_AUTHOR, "invalid format - expected 'author' line"); | |
846 | else if (author_count > 1) | |
847 | err = report(options, &commit->object, FSCK_MSG_MULTIPLE_AUTHORS, "invalid format - multiple 'author' lines"); | |
daae1922 JN |
848 | if (err) |
849 | return err; | |
cf4fff57 | 850 | if (!skip_prefix(buffer, "committer ", &buffer)) |
c99ba492 | 851 | return report(options, &commit->object, FSCK_MSG_MISSING_COMMITTER, "invalid format - expected 'committer' line"); |
22410549 | 852 | err = fsck_ident(&buffer, &commit->object, options); |
daae1922 JN |
853 | if (err) |
854 | return err; | |
2e27bd77 | 855 | if (!get_commit_tree(commit)) { |
c54f5ca9 | 856 | err = report(options, &commit->object, FSCK_MSG_BAD_TREE, "could not load commit's tree %s", oid_to_hex(&tree_oid)); |
5af29718 JH |
857 | if (err) |
858 | return err; | |
859 | } | |
6d2d780f JH |
860 | if (memchr(buffer_begin, '\0', size)) { |
861 | err = report(options, &commit->object, FSCK_MSG_NUL_IN_COMMIT, | |
862 | "NUL byte in the commit object body"); | |
863 | if (err) | |
864 | return err; | |
865 | } | |
ba002f3b MK |
866 | return 0; |
867 | } | |
868 | ||
90a398bb | 869 | static int fsck_commit(struct commit *commit, const char *data, |
22410549 | 870 | unsigned long size, struct fsck_options *options) |
bc6b8fc1 | 871 | { |
90a398bb | 872 | const char *buffer = data ? data : get_commit_buffer(commit, &size); |
22410549 | 873 | int ret = fsck_commit_buffer(commit, buffer, size, options); |
90a398bb JS |
874 | if (!data) |
875 | unuse_commit_buffer(commit, buffer); | |
bc6b8fc1 JK |
876 | return ret; |
877 | } | |
878 | ||
cec097be | 879 | static int fsck_tag_buffer(struct tag *tag, const char *data, |
22410549 | 880 | unsigned long size, struct fsck_options *options) |
cec097be | 881 | { |
c54f5ca9 | 882 | struct object_id oid; |
cec097be JS |
883 | int ret = 0; |
884 | const char *buffer; | |
885 | char *to_free = NULL, *eol; | |
886 | struct strbuf sb = STRBUF_INIT; | |
c54f5ca9 | 887 | const char *p; |
cec097be JS |
888 | |
889 | if (data) | |
890 | buffer = data; | |
891 | else { | |
892 | enum object_type type; | |
893 | ||
894 | buffer = to_free = | |
b4f5aca4 | 895 | read_object_file(&tag->object.oid, &type, &size); |
cec097be | 896 | if (!buffer) |
c99ba492 JS |
897 | return report(options, &tag->object, |
898 | FSCK_MSG_MISSING_TAG_OBJECT, | |
cec097be JS |
899 | "cannot read tag object"); |
900 | ||
901 | if (type != OBJ_TAG) { | |
c99ba492 JS |
902 | ret = report(options, &tag->object, |
903 | FSCK_MSG_TAG_OBJECT_NOT_TAG, | |
cec097be | 904 | "expected tag got %s", |
debca9d2 | 905 | type_name(type)); |
cec097be JS |
906 | goto done; |
907 | } | |
908 | } | |
909 | ||
8a272f29 RS |
910 | ret = verify_headers(buffer, size, &tag->object, options); |
911 | if (ret) | |
cec097be JS |
912 | goto done; |
913 | ||
914 | if (!skip_prefix(buffer, "object ", &buffer)) { | |
c99ba492 | 915 | ret = report(options, &tag->object, FSCK_MSG_MISSING_OBJECT, "invalid format - expected 'object' line"); |
cec097be JS |
916 | goto done; |
917 | } | |
c54f5ca9 | 918 | if (parse_oid_hex(buffer, &oid, &p) || *p != '\n') { |
c99ba492 | 919 | ret = report(options, &tag->object, FSCK_MSG_BAD_OBJECT_SHA1, "invalid 'object' line format - bad sha1"); |
7d7d5b05 JS |
920 | if (ret) |
921 | goto done; | |
cec097be | 922 | } |
c54f5ca9 | 923 | buffer = p + 1; |
cec097be JS |
924 | |
925 | if (!skip_prefix(buffer, "type ", &buffer)) { | |
c99ba492 | 926 | ret = report(options, &tag->object, FSCK_MSG_MISSING_TYPE_ENTRY, "invalid format - expected 'type' line"); |
cec097be JS |
927 | goto done; |
928 | } | |
929 | eol = strchr(buffer, '\n'); | |
930 | if (!eol) { | |
c99ba492 | 931 | ret = report(options, &tag->object, FSCK_MSG_MISSING_TYPE, "invalid format - unexpected end after 'type' line"); |
cec097be JS |
932 | goto done; |
933 | } | |
934 | if (type_from_string_gently(buffer, eol - buffer, 1) < 0) | |
c99ba492 | 935 | ret = report(options, &tag->object, FSCK_MSG_BAD_TYPE, "invalid 'type' value"); |
cec097be JS |
936 | if (ret) |
937 | goto done; | |
938 | buffer = eol + 1; | |
939 | ||
940 | if (!skip_prefix(buffer, "tag ", &buffer)) { | |
c99ba492 | 941 | ret = report(options, &tag->object, FSCK_MSG_MISSING_TAG_ENTRY, "invalid format - expected 'tag' line"); |
cec097be JS |
942 | goto done; |
943 | } | |
944 | eol = strchr(buffer, '\n'); | |
945 | if (!eol) { | |
c99ba492 | 946 | ret = report(options, &tag->object, FSCK_MSG_MISSING_TAG, "invalid format - unexpected end after 'type' line"); |
cec097be JS |
947 | goto done; |
948 | } | |
949 | strbuf_addf(&sb, "refs/tags/%.*s", (int)(eol - buffer), buffer); | |
f27d05b1 JS |
950 | if (check_refname_format(sb.buf, 0)) { |
951 | ret = report(options, &tag->object, FSCK_MSG_BAD_TAG_NAME, | |
c99ba492 | 952 | "invalid 'tag' name: %.*s", |
7add4419 | 953 | (int)(eol - buffer), buffer); |
f27d05b1 JS |
954 | if (ret) |
955 | goto done; | |
956 | } | |
cec097be JS |
957 | buffer = eol + 1; |
958 | ||
f27d05b1 | 959 | if (!skip_prefix(buffer, "tagger ", &buffer)) { |
cec097be | 960 | /* early tags do not contain 'tagger' lines; warn only */ |
f27d05b1 JS |
961 | ret = report(options, &tag->object, FSCK_MSG_MISSING_TAGGER_ENTRY, "invalid format - expected 'tagger' line"); |
962 | if (ret) | |
963 | goto done; | |
964 | } | |
cec097be | 965 | else |
22410549 | 966 | ret = fsck_ident(&buffer, &tag->object, options); |
cec097be JS |
967 | |
968 | done: | |
969 | strbuf_release(&sb); | |
970 | free(to_free); | |
971 | return ret; | |
972 | } | |
973 | ||
90a398bb | 974 | static int fsck_tag(struct tag *tag, const char *data, |
22410549 | 975 | unsigned long size, struct fsck_options *options) |
ba002f3b MK |
976 | { |
977 | struct object *tagged = tag->tagged; | |
978 | ||
979 | if (!tagged) | |
c99ba492 | 980 | return report(options, &tag->object, FSCK_MSG_BAD_TAG_OBJECT, "could not load tagged object"); |
cec097be | 981 | |
22410549 | 982 | return fsck_tag_buffer(tag, data, size, options); |
ba002f3b MK |
983 | } |
984 | ||
ed8b10f6 JK |
985 | struct fsck_gitmodules_data { |
986 | struct object *obj; | |
987 | struct fsck_options *options; | |
988 | int ret; | |
989 | }; | |
990 | ||
991 | static int fsck_gitmodules_fn(const char *var, const char *value, void *vdata) | |
992 | { | |
993 | struct fsck_gitmodules_data *data = vdata; | |
994 | const char *subsection, *key; | |
995 | int subsection_len; | |
996 | char *name; | |
997 | ||
998 | if (parse_config_key(var, "submodule", &subsection, &subsection_len, &key) < 0 || | |
999 | !subsection) | |
1000 | return 0; | |
1001 | ||
1002 | name = xmemdupz(subsection, subsection_len); | |
1003 | if (check_submodule_name(name) < 0) | |
1004 | data->ret |= report(data->options, data->obj, | |
1005 | FSCK_MSG_GITMODULES_NAME, | |
1006 | "disallowed submodule name: %s", | |
1007 | name); | |
a124133e JK |
1008 | if (!strcmp(key, "url") && value && |
1009 | looks_like_command_line_option(value)) | |
1010 | data->ret |= report(data->options, data->obj, | |
1011 | FSCK_MSG_GITMODULES_URL, | |
1012 | "disallowed submodule url: %s", | |
1013 | value); | |
1a7fd1fb JK |
1014 | if (!strcmp(key, "path") && value && |
1015 | looks_like_command_line_option(value)) | |
1016 | data->ret |= report(data->options, data->obj, | |
1017 | FSCK_MSG_GITMODULES_PATH, | |
1018 | "disallowed submodule path: %s", | |
1019 | value); | |
bb92255e JN |
1020 | if (!strcmp(key, "update") && value && |
1021 | parse_submodule_update_type(value) == SM_UPDATE_COMMAND) | |
1022 | data->ret |= report(data->options, data->obj, | |
1023 | FSCK_MSG_GITMODULES_UPDATE, | |
1024 | "disallowed submodule update setting: %s", | |
1025 | value); | |
ed8b10f6 JK |
1026 | free(name); |
1027 | ||
1028 | return 0; | |
1029 | } | |
1030 | ||
7ac4f3a0 JK |
1031 | static int fsck_blob(struct blob *blob, const char *buf, |
1032 | unsigned long size, struct fsck_options *options) | |
1033 | { | |
ed8b10f6 | 1034 | struct fsck_gitmodules_data data; |
de6bd9e3 | 1035 | struct config_options config_opts = { 0 }; |
ed8b10f6 JK |
1036 | |
1037 | if (!oidset_contains(&gitmodules_found, &blob->object.oid)) | |
1038 | return 0; | |
1039 | oidset_insert(&gitmodules_done, &blob->object.oid); | |
1040 | ||
fb162877 RJ |
1041 | if (object_on_skiplist(options, &blob->object)) |
1042 | return 0; | |
1043 | ||
ed8b10f6 JK |
1044 | if (!buf) { |
1045 | /* | |
1046 | * A missing buffer here is a sign that the caller found the | |
1047 | * blob too gigantic to load into memory. Let's just consider | |
1048 | * that an error. | |
1049 | */ | |
1050 | return report(options, &blob->object, | |
0d68764d | 1051 | FSCK_MSG_GITMODULES_LARGE, |
ed8b10f6 JK |
1052 | ".gitmodules too large to parse"); |
1053 | } | |
1054 | ||
1055 | data.obj = &blob->object; | |
1056 | data.options = options; | |
1057 | data.ret = 0; | |
de6bd9e3 | 1058 | config_opts.error_action = CONFIG_ERROR_SILENT; |
ed8b10f6 | 1059 | if (git_config_from_mem(fsck_gitmodules_fn, CONFIG_ORIGIN_BLOB, |
de6bd9e3 | 1060 | ".gitmodules", buf, size, &data, &config_opts)) |
ed8b10f6 JK |
1061 | data.ret |= report(options, &blob->object, |
1062 | FSCK_MSG_GITMODULES_PARSE, | |
1063 | "could not parse gitmodules blob"); | |
1064 | ||
1065 | return data.ret; | |
7ac4f3a0 JK |
1066 | } |
1067 | ||
90a398bb | 1068 | int fsck_object(struct object *obj, void *data, unsigned long size, |
22410549 | 1069 | struct fsck_options *options) |
ba002f3b MK |
1070 | { |
1071 | if (!obj) | |
c99ba492 | 1072 | return report(options, obj, FSCK_MSG_BAD_OBJECT_SHA1, "no valid object to fsck"); |
ba002f3b MK |
1073 | |
1074 | if (obj->type == OBJ_BLOB) | |
7ac4f3a0 | 1075 | return fsck_blob((struct blob *)obj, data, size, options); |
ba002f3b | 1076 | if (obj->type == OBJ_TREE) |
22410549 | 1077 | return fsck_tree((struct tree *) obj, options); |
ba002f3b | 1078 | if (obj->type == OBJ_COMMIT) |
90a398bb | 1079 | return fsck_commit((struct commit *) obj, (const char *) data, |
22410549 | 1080 | size, options); |
ba002f3b | 1081 | if (obj->type == OBJ_TAG) |
90a398bb | 1082 | return fsck_tag((struct tag *) obj, (const char *) data, |
22410549 | 1083 | size, options); |
ba002f3b | 1084 | |
c99ba492 | 1085 | return report(options, obj, FSCK_MSG_UNKNOWN_TYPE, "unknown type '%d' (internal fsck error)", |
ba002f3b MK |
1086 | obj->type); |
1087 | } | |
d6ffc8d7 | 1088 | |
1cd772cc JS |
1089 | int fsck_error_function(struct fsck_options *o, |
1090 | struct object *obj, int msg_type, const char *message) | |
d6ffc8d7 | 1091 | { |
0282f4dc | 1092 | if (msg_type == FSCK_WARN) { |
90cf590f | 1093 | warning("object %s: %s", describe_object(o, obj), message); |
0282f4dc JS |
1094 | return 0; |
1095 | } | |
90cf590f | 1096 | error("object %s: %s", describe_object(o, obj), message); |
d6ffc8d7 MK |
1097 | return 1; |
1098 | } | |
159e7b08 JK |
1099 | |
1100 | int fsck_finish(struct fsck_options *options) | |
1101 | { | |
1102 | int ret = 0; | |
1103 | struct oidset_iter iter; | |
1104 | const struct object_id *oid; | |
1105 | ||
1106 | oidset_iter_init(&gitmodules_found, &iter); | |
1107 | while ((oid = oidset_iter_next(&iter))) { | |
1108 | struct blob *blob; | |
1109 | enum object_type type; | |
1110 | unsigned long size; | |
1111 | char *buf; | |
1112 | ||
1113 | if (oidset_contains(&gitmodules_done, oid)) | |
1114 | continue; | |
1115 | ||
da14a7ff | 1116 | blob = lookup_blob(the_repository, oid); |
159e7b08 | 1117 | if (!blob) { |
47cc9131 JK |
1118 | struct object *obj = lookup_unknown_object(oid->hash); |
1119 | ret |= report(options, obj, | |
159e7b08 JK |
1120 | FSCK_MSG_GITMODULES_BLOB, |
1121 | "non-blob found at .gitmodules"); | |
1122 | continue; | |
1123 | } | |
1124 | ||
7913f53b | 1125 | buf = read_object_file(oid, &type, &size); |
159e7b08 | 1126 | if (!buf) { |
27387444 JK |
1127 | if (is_promisor_object(&blob->object.oid)) |
1128 | continue; | |
159e7b08 JK |
1129 | ret |= report(options, &blob->object, |
1130 | FSCK_MSG_GITMODULES_MISSING, | |
1131 | "unable to read .gitmodules blob"); | |
1132 | continue; | |
1133 | } | |
1134 | ||
1135 | if (type == OBJ_BLOB) | |
1136 | ret |= fsck_blob(blob, buf, size, options); | |
1137 | else | |
1138 | ret |= report(options, &blob->object, | |
1139 | FSCK_MSG_GITMODULES_BLOB, | |
1140 | "non-blob found at .gitmodules"); | |
1141 | free(buf); | |
1142 | } | |
1143 | ||
1144 | ||
1145 | oidset_clear(&gitmodules_found); | |
1146 | oidset_clear(&gitmodules_done); | |
1147 | return ret; | |
1148 | } |