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Commit | Line | Data |
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f2dc849e JS |
1 | /* |
2 | * "git fast-export" builtin command | |
3 | * | |
4 | * Copyright (C) 2007 Johannes E. Schindelin | |
5 | */ | |
6 | #include "builtin.h" | |
7 | #include "cache.h" | |
8 | #include "commit.h" | |
9 | #include "object.h" | |
10 | #include "tag.h" | |
11 | #include "diff.h" | |
12 | #include "diffcore.h" | |
13 | #include "log-tree.h" | |
14 | #include "revision.h" | |
15 | #include "decorate.h" | |
c455c87c | 16 | #include "string-list.h" |
f2dc849e JS |
17 | #include "utf8.h" |
18 | #include "parse-options.h" | |
6280dfdc | 19 | #include "quote.h" |
f2dc849e JS |
20 | |
21 | static const char *fast_export_usage[] = { | |
3b787b96 | 22 | N_("git fast-export [rev-list-opts]"), |
f2dc849e JS |
23 | NULL |
24 | }; | |
25 | ||
26 | static int progress; | |
2d8ad469 | 27 | static enum { ABORT, VERBATIM, WARN, STRIP } signed_tag_mode = ABORT; |
d7a10c31 | 28 | static enum { ERROR, DROP, REWRITE } tag_of_filtered_mode = ERROR; |
4e46a8d6 | 29 | static int fake_missing_tagger; |
82670a5c | 30 | static int use_done_feature; |
79559f27 | 31 | static int no_data; |
7f40ab09 | 32 | static int full_tree; |
f2dc849e JS |
33 | |
34 | static int parse_opt_signed_tag_mode(const struct option *opt, | |
35 | const char *arg, int unset) | |
36 | { | |
37 | if (unset || !strcmp(arg, "abort")) | |
38 | signed_tag_mode = ABORT; | |
ee4bc371 JS |
39 | else if (!strcmp(arg, "verbatim") || !strcmp(arg, "ignore")) |
40 | signed_tag_mode = VERBATIM; | |
f2dc849e JS |
41 | else if (!strcmp(arg, "warn")) |
42 | signed_tag_mode = WARN; | |
43 | else if (!strcmp(arg, "strip")) | |
44 | signed_tag_mode = STRIP; | |
45 | else | |
46 | return error("Unknown signed-tag mode: %s", arg); | |
47 | return 0; | |
48 | } | |
49 | ||
2d8ad469 EN |
50 | static int parse_opt_tag_of_filtered_mode(const struct option *opt, |
51 | const char *arg, int unset) | |
52 | { | |
53 | if (unset || !strcmp(arg, "abort")) | |
d7a10c31 | 54 | tag_of_filtered_mode = ERROR; |
2d8ad469 EN |
55 | else if (!strcmp(arg, "drop")) |
56 | tag_of_filtered_mode = DROP; | |
57 | else if (!strcmp(arg, "rewrite")) | |
58 | tag_of_filtered_mode = REWRITE; | |
59 | else | |
60 | return error("Unknown tag-of-filtered mode: %s", arg); | |
61 | return 0; | |
62 | } | |
63 | ||
f2dc849e JS |
64 | static struct decoration idnums; |
65 | static uint32_t last_idnum; | |
66 | ||
67 | static int has_unshown_parent(struct commit *commit) | |
68 | { | |
69 | struct commit_list *parent; | |
70 | ||
71 | for (parent = commit->parents; parent; parent = parent->next) | |
72 | if (!(parent->item->object.flags & SHOWN) && | |
73 | !(parent->item->object.flags & UNINTERESTING)) | |
74 | return 1; | |
75 | return 0; | |
76 | } | |
77 | ||
78 | /* Since intptr_t is C99, we do not use it here */ | |
df6a7ff7 | 79 | static inline uint32_t *mark_to_ptr(uint32_t mark) |
f2dc849e | 80 | { |
df6a7ff7 PB |
81 | return ((uint32_t *)NULL) + mark; |
82 | } | |
83 | ||
84 | static inline uint32_t ptr_to_mark(void * mark) | |
85 | { | |
86 | return (uint32_t *)mark - (uint32_t *)NULL; | |
87 | } | |
88 | ||
89 | static inline void mark_object(struct object *object, uint32_t mark) | |
90 | { | |
91 | add_decoration(&idnums, object, mark_to_ptr(mark)); | |
92 | } | |
93 | ||
94 | static inline void mark_next_object(struct object *object) | |
95 | { | |
96 | mark_object(object, ++last_idnum); | |
f2dc849e JS |
97 | } |
98 | ||
99 | static int get_object_mark(struct object *object) | |
100 | { | |
101 | void *decoration = lookup_decoration(&idnums, object); | |
102 | if (!decoration) | |
103 | return 0; | |
df6a7ff7 | 104 | return ptr_to_mark(decoration); |
f2dc849e JS |
105 | } |
106 | ||
107 | static void show_progress(void) | |
108 | { | |
109 | static int counter = 0; | |
110 | if (!progress) | |
111 | return; | |
112 | if ((++counter % progress) == 0) | |
113 | printf("progress %d objects\n", counter); | |
114 | } | |
115 | ||
116 | static void handle_object(const unsigned char *sha1) | |
117 | { | |
118 | unsigned long size; | |
119 | enum object_type type; | |
120 | char *buf; | |
121 | struct object *object; | |
122 | ||
79559f27 GI |
123 | if (no_data) |
124 | return; | |
125 | ||
f2dc849e JS |
126 | if (is_null_sha1(sha1)) |
127 | return; | |
128 | ||
129 | object = parse_object(sha1); | |
130 | if (!object) | |
131 | die ("Could not read blob %s", sha1_to_hex(sha1)); | |
132 | ||
133 | if (object->flags & SHOWN) | |
134 | return; | |
135 | ||
136 | buf = read_sha1_file(sha1, &type, &size); | |
137 | if (!buf) | |
138 | die ("Could not read blob %s", sha1_to_hex(sha1)); | |
139 | ||
df6a7ff7 | 140 | mark_next_object(object); |
f2dc849e | 141 | |
6e1c2344 | 142 | printf("blob\nmark :%"PRIu32"\ndata %lu\n", last_idnum, size); |
b0fe0d72 | 143 | if (size && fwrite(buf, size, 1, stdout) != 1) |
0721c314 | 144 | die_errno ("Could not write blob '%s'", sha1_to_hex(sha1)); |
f2dc849e JS |
145 | printf("\n"); |
146 | ||
147 | show_progress(); | |
148 | ||
149 | object->flags |= SHOWN; | |
150 | free(buf); | |
151 | } | |
152 | ||
060df624 EN |
153 | static int depth_first(const void *a_, const void *b_) |
154 | { | |
155 | const struct diff_filepair *a = *((const struct diff_filepair **)a_); | |
156 | const struct diff_filepair *b = *((const struct diff_filepair **)b_); | |
157 | const char *name_a, *name_b; | |
158 | int len_a, len_b, len; | |
159 | int cmp; | |
160 | ||
161 | name_a = a->one ? a->one->path : a->two->path; | |
162 | name_b = b->one ? b->one->path : b->two->path; | |
163 | ||
164 | len_a = strlen(name_a); | |
165 | len_b = strlen(name_b); | |
166 | len = (len_a < len_b) ? len_a : len_b; | |
167 | ||
168 | /* strcmp will sort 'd' before 'd/e', we want 'd/e' before 'd' */ | |
169 | cmp = memcmp(name_a, name_b, len); | |
170 | if (cmp) | |
171 | return cmp; | |
4ce6fb80 JS |
172 | cmp = len_b - len_a; |
173 | if (cmp) | |
174 | return cmp; | |
175 | /* | |
176 | * Move 'R'ename entries last so that all references of the file | |
177 | * appear in the output before it is renamed (e.g., when a file | |
178 | * was copied and renamed in the same commit). | |
179 | */ | |
180 | return (a->status == 'R') - (b->status == 'R'); | |
060df624 EN |
181 | } |
182 | ||
6280dfdc JK |
183 | static void print_path(const char *path) |
184 | { | |
185 | int need_quote = quote_c_style(path, NULL, NULL, 0); | |
186 | if (need_quote) | |
187 | quote_c_style(path, NULL, stdout, 0); | |
ff59f6da JS |
188 | else if (strchr(path, ' ')) |
189 | printf("\"%s\"", path); | |
6280dfdc JK |
190 | else |
191 | printf("%s", path); | |
192 | } | |
193 | ||
f2dc849e JS |
194 | static void show_filemodify(struct diff_queue_struct *q, |
195 | struct diff_options *options, void *data) | |
196 | { | |
197 | int i; | |
060df624 EN |
198 | |
199 | /* | |
200 | * Handle files below a directory first, in case they are all deleted | |
201 | * and the directory changes to a file or symlink. | |
202 | */ | |
203 | qsort(q->queue, q->nr, sizeof(q->queue[0]), depth_first); | |
204 | ||
f2dc849e | 205 | for (i = 0; i < q->nr; i++) { |
ae7c5dce | 206 | struct diff_filespec *ospec = q->queue[i]->one; |
f2dc849e | 207 | struct diff_filespec *spec = q->queue[i]->two; |
ae7c5dce AG |
208 | |
209 | switch (q->queue[i]->status) { | |
210 | case DIFF_STATUS_DELETED: | |
6280dfdc JK |
211 | printf("D "); |
212 | print_path(spec->path); | |
213 | putchar('\n'); | |
ae7c5dce AG |
214 | break; |
215 | ||
216 | case DIFF_STATUS_COPIED: | |
217 | case DIFF_STATUS_RENAMED: | |
6280dfdc JK |
218 | printf("%c ", q->queue[i]->status); |
219 | print_path(ospec->path); | |
220 | putchar(' '); | |
221 | print_path(spec->path); | |
222 | putchar('\n'); | |
ae7c5dce AG |
223 | |
224 | if (!hashcmp(ospec->sha1, spec->sha1) && | |
225 | ospec->mode == spec->mode) | |
226 | break; | |
227 | /* fallthrough */ | |
228 | ||
229 | case DIFF_STATUS_TYPE_CHANGED: | |
230 | case DIFF_STATUS_MODIFIED: | |
231 | case DIFF_STATUS_ADDED: | |
03db4525 AG |
232 | /* |
233 | * Links refer to objects in another repositories; | |
234 | * output the SHA-1 verbatim. | |
235 | */ | |
79559f27 | 236 | if (no_data || S_ISGITLINK(spec->mode)) |
6280dfdc JK |
237 | printf("M %06o %s ", spec->mode, |
238 | sha1_to_hex(spec->sha1)); | |
03db4525 AG |
239 | else { |
240 | struct object *object = lookup_object(spec->sha1); | |
6280dfdc JK |
241 | printf("M %06o :%d ", spec->mode, |
242 | get_object_mark(object)); | |
03db4525 | 243 | } |
6280dfdc JK |
244 | print_path(spec->path); |
245 | putchar('\n'); | |
ae7c5dce AG |
246 | break; |
247 | ||
248 | default: | |
249 | die("Unexpected comparison status '%c' for %s, %s", | |
250 | q->queue[i]->status, | |
251 | ospec->path ? ospec->path : "none", | |
252 | spec->path ? spec->path : "none"); | |
f2dc849e JS |
253 | } |
254 | } | |
255 | } | |
256 | ||
257 | static const char *find_encoding(const char *begin, const char *end) | |
258 | { | |
259 | const char *needle = "\nencoding "; | |
260 | char *bol, *eol; | |
261 | ||
262 | bol = memmem(begin, end ? end - begin : strlen(begin), | |
263 | needle, strlen(needle)); | |
264 | if (!bol) | |
265 | return git_commit_encoding; | |
266 | bol += strlen(needle); | |
267 | eol = strchrnul(bol, '\n'); | |
268 | *eol = '\0'; | |
269 | return bol; | |
270 | } | |
271 | ||
272 | static void handle_commit(struct commit *commit, struct rev_info *rev) | |
273 | { | |
274 | int saved_output_format = rev->diffopt.output_format; | |
275 | const char *author, *author_end, *committer, *committer_end; | |
276 | const char *encoding, *message; | |
277 | char *reencoded = NULL; | |
278 | struct commit_list *p; | |
279 | int i; | |
280 | ||
281 | rev->diffopt.output_format = DIFF_FORMAT_CALLBACK; | |
282 | ||
283 | parse_commit(commit); | |
284 | author = strstr(commit->buffer, "\nauthor "); | |
285 | if (!author) | |
286 | die ("Could not find author in commit %s", | |
287 | sha1_to_hex(commit->object.sha1)); | |
288 | author++; | |
289 | author_end = strchrnul(author, '\n'); | |
290 | committer = strstr(author_end, "\ncommitter "); | |
291 | if (!committer) | |
292 | die ("Could not find committer in commit %s", | |
293 | sha1_to_hex(commit->object.sha1)); | |
294 | committer++; | |
295 | committer_end = strchrnul(committer, '\n'); | |
296 | message = strstr(committer_end, "\n\n"); | |
297 | encoding = find_encoding(committer_end, message); | |
298 | if (message) | |
299 | message += 2; | |
300 | ||
ebeec7db | 301 | if (commit->parents && |
4087a02e EN |
302 | get_object_mark(&commit->parents->item->object) != 0 && |
303 | !full_tree) { | |
f2dc849e JS |
304 | parse_commit(commit->parents->item); |
305 | diff_tree_sha1(commit->parents->item->tree->object.sha1, | |
306 | commit->tree->object.sha1, "", &rev->diffopt); | |
307 | } | |
308 | else | |
309 | diff_root_tree_sha1(commit->tree->object.sha1, | |
310 | "", &rev->diffopt); | |
311 | ||
03db4525 | 312 | /* Export the referenced blobs, and remember the marks. */ |
f2dc849e | 313 | for (i = 0; i < diff_queued_diff.nr; i++) |
03db4525 AG |
314 | if (!S_ISGITLINK(diff_queued_diff.queue[i]->two->mode)) |
315 | handle_object(diff_queued_diff.queue[i]->two->sha1); | |
f2dc849e | 316 | |
df6a7ff7 | 317 | mark_next_object(&commit->object); |
f2dc849e JS |
318 | if (!is_encoding_utf8(encoding)) |
319 | reencoded = reencode_string(message, "UTF-8", encoding); | |
d8933f01 SP |
320 | if (!commit->parents) |
321 | printf("reset %s\n", (const char*)commit->util); | |
6e1c2344 | 322 | printf("commit %s\nmark :%"PRIu32"\n%.*s\n%.*s\ndata %u\n%s", |
f2dc849e JS |
323 | (const char *)commit->util, last_idnum, |
324 | (int)(author_end - author), author, | |
325 | (int)(committer_end - committer), committer, | |
326 | (unsigned)(reencoded | |
327 | ? strlen(reencoded) : message | |
328 | ? strlen(message) : 0), | |
329 | reencoded ? reencoded : message ? message : ""); | |
8e0f7003 | 330 | free(reencoded); |
f2dc849e JS |
331 | |
332 | for (i = 0, p = commit->parents; p; p = p->next) { | |
333 | int mark = get_object_mark(&p->item->object); | |
334 | if (!mark) | |
335 | continue; | |
336 | if (i == 0) | |
337 | printf("from :%d\n", mark); | |
f2dc849e | 338 | else |
5070b49e | 339 | printf("merge :%d\n", mark); |
f2dc849e JS |
340 | i++; |
341 | } | |
f2dc849e | 342 | |
4087a02e EN |
343 | if (full_tree) |
344 | printf("deleteall\n"); | |
f2dc849e JS |
345 | log_tree_diff_flush(rev); |
346 | rev->diffopt.output_format = saved_output_format; | |
347 | ||
348 | printf("\n"); | |
349 | ||
350 | show_progress(); | |
351 | } | |
352 | ||
353 | static void handle_tail(struct object_array *commits, struct rev_info *revs) | |
354 | { | |
355 | struct commit *commit; | |
356 | while (commits->nr) { | |
357 | commit = (struct commit *)commits->objects[commits->nr - 1].item; | |
358 | if (has_unshown_parent(commit)) | |
359 | return; | |
360 | handle_commit(commit, revs); | |
361 | commits->nr--; | |
362 | } | |
363 | } | |
364 | ||
365 | static void handle_tag(const char *name, struct tag *tag) | |
366 | { | |
367 | unsigned long size; | |
368 | enum object_type type; | |
369 | char *buf; | |
370 | const char *tagger, *tagger_end, *message; | |
371 | size_t message_size = 0; | |
02c48cd6 | 372 | struct object *tagged; |
2d8ad469 EN |
373 | int tagged_mark; |
374 | struct commit *p; | |
02c48cd6 EN |
375 | |
376 | /* Trees have no identifer in fast-export output, thus we have no way | |
377 | * to output tags of trees, tags of tags of trees, etc. Simply omit | |
378 | * such tags. | |
379 | */ | |
380 | tagged = tag->tagged; | |
381 | while (tagged->type == OBJ_TAG) { | |
382 | tagged = ((struct tag *)tagged)->tagged; | |
383 | } | |
384 | if (tagged->type == OBJ_TREE) { | |
385 | warning("Omitting tag %s,\nsince tags of trees (or tags of tags of trees, etc.) are not supported.", | |
386 | sha1_to_hex(tag->object.sha1)); | |
387 | return; | |
388 | } | |
f2dc849e JS |
389 | |
390 | buf = read_sha1_file(tag->object.sha1, &type, &size); | |
391 | if (!buf) | |
392 | die ("Could not read tag %s", sha1_to_hex(tag->object.sha1)); | |
393 | message = memmem(buf, size, "\n\n", 2); | |
394 | if (message) { | |
395 | message += 2; | |
396 | message_size = strlen(message); | |
397 | } | |
398 | tagger = memmem(buf, message ? message - buf : size, "\ntagger ", 8); | |
4e46a8d6 JS |
399 | if (!tagger) { |
400 | if (fake_missing_tagger) | |
401 | tagger = "tagger Unspecified Tagger " | |
402 | "<unspecified-tagger> 0 +0000"; | |
403 | else | |
404 | tagger = ""; | |
405 | tagger_end = tagger + strlen(tagger); | |
406 | } else { | |
407 | tagger++; | |
408 | tagger_end = strchrnul(tagger, '\n'); | |
409 | } | |
f2dc849e JS |
410 | |
411 | /* handle signed tags */ | |
412 | if (message) { | |
413 | const char *signature = strstr(message, | |
414 | "\n-----BEGIN PGP SIGNATURE-----\n"); | |
415 | if (signature) | |
416 | switch(signed_tag_mode) { | |
417 | case ABORT: | |
418 | die ("Encountered signed tag %s; use " | |
419 | "--signed-tag=<mode> to handle it.", | |
420 | sha1_to_hex(tag->object.sha1)); | |
421 | case WARN: | |
422 | warning ("Exporting signed tag %s", | |
423 | sha1_to_hex(tag->object.sha1)); | |
424 | /* fallthru */ | |
ee4bc371 | 425 | case VERBATIM: |
f2dc849e JS |
426 | break; |
427 | case STRIP: | |
428 | message_size = signature + 1 - message; | |
429 | break; | |
430 | } | |
431 | } | |
432 | ||
2d8ad469 EN |
433 | /* handle tag->tagged having been filtered out due to paths specified */ |
434 | tagged = tag->tagged; | |
435 | tagged_mark = get_object_mark(tagged); | |
436 | if (!tagged_mark) { | |
437 | switch(tag_of_filtered_mode) { | |
438 | case ABORT: | |
439 | die ("Tag %s tags unexported object; use " | |
440 | "--tag-of-filtered-object=<mode> to handle it.", | |
441 | sha1_to_hex(tag->object.sha1)); | |
442 | case DROP: | |
443 | /* Ignore this tag altogether */ | |
444 | return; | |
445 | case REWRITE: | |
446 | if (tagged->type != OBJ_COMMIT) { | |
447 | die ("Tag %s tags unexported %s!", | |
448 | sha1_to_hex(tag->object.sha1), | |
449 | typename(tagged->type)); | |
450 | } | |
451 | p = (struct commit *)tagged; | |
452 | for (;;) { | |
453 | if (p->parents && p->parents->next) | |
454 | break; | |
455 | if (p->object.flags & UNINTERESTING) | |
456 | break; | |
457 | if (!(p->object.flags & TREESAME)) | |
458 | break; | |
459 | if (!p->parents) | |
460 | die ("Can't find replacement commit for tag %s\n", | |
461 | sha1_to_hex(tag->object.sha1)); | |
462 | p = p->parents->item; | |
463 | } | |
464 | tagged_mark = get_object_mark(&p->object); | |
465 | } | |
466 | } | |
467 | ||
f2dc849e JS |
468 | if (!prefixcmp(name, "refs/tags/")) |
469 | name += 10; | |
4e46a8d6 | 470 | printf("tag %s\nfrom :%d\n%.*s%sdata %d\n%.*s\n", |
2d8ad469 | 471 | name, tagged_mark, |
f2dc849e | 472 | (int)(tagger_end - tagger), tagger, |
4e46a8d6 | 473 | tagger == tagger_end ? "" : "\n", |
f2dc849e JS |
474 | (int)message_size, (int)message_size, message ? message : ""); |
475 | } | |
476 | ||
477 | static void get_tags_and_duplicates(struct object_array *pending, | |
c455c87c | 478 | struct string_list *extra_refs) |
f2dc849e JS |
479 | { |
480 | struct tag *tag; | |
481 | int i; | |
482 | ||
483 | for (i = 0; i < pending->nr; i++) { | |
484 | struct object_array_entry *e = pending->objects + i; | |
485 | unsigned char sha1[20]; | |
486 | struct commit *commit = commit; | |
487 | char *full_name; | |
488 | ||
489 | if (dwim_ref(e->name, strlen(e->name), sha1, &full_name) != 1) | |
490 | continue; | |
491 | ||
492 | switch (e->item->type) { | |
493 | case OBJ_COMMIT: | |
494 | commit = (struct commit *)e->item; | |
495 | break; | |
496 | case OBJ_TAG: | |
497 | tag = (struct tag *)e->item; | |
1982467d EFL |
498 | |
499 | /* handle nested tags */ | |
f2dc849e | 500 | while (tag && tag->object.type == OBJ_TAG) { |
1982467d | 501 | parse_object(tag->object.sha1); |
1d2f80fa | 502 | string_list_append(extra_refs, full_name)->util = tag; |
f2dc849e JS |
503 | tag = (struct tag *)tag->tagged; |
504 | } | |
505 | if (!tag) | |
506 | die ("Tag %s points nowhere?", e->name); | |
507 | switch(tag->object.type) { | |
508 | case OBJ_COMMIT: | |
509 | commit = (struct commit *)tag; | |
510 | break; | |
511 | case OBJ_BLOB: | |
512 | handle_object(tag->object.sha1); | |
513 | continue; | |
1982467d | 514 | default: /* OBJ_TAG (nested tags) is already handled */ |
c0582c53 EFL |
515 | warning("Tag points to object of unexpected type %s, skipping.", |
516 | typename(tag->object.type)); | |
517 | continue; | |
f2dc849e JS |
518 | } |
519 | break; | |
520 | default: | |
2d07f6d4 EFL |
521 | warning("%s: Unexpected object of type %s, skipping.", |
522 | e->name, | |
523 | typename(e->item->type)); | |
524 | continue; | |
f2dc849e JS |
525 | } |
526 | if (commit->util) | |
527 | /* more than one name for the same object */ | |
1d2f80fa | 528 | string_list_append(extra_refs, full_name)->util = commit; |
f2dc849e JS |
529 | else |
530 | commit->util = full_name; | |
531 | } | |
532 | } | |
533 | ||
c455c87c | 534 | static void handle_tags_and_duplicates(struct string_list *extra_refs) |
f2dc849e JS |
535 | { |
536 | struct commit *commit; | |
537 | int i; | |
538 | ||
539 | for (i = extra_refs->nr - 1; i >= 0; i--) { | |
c455c87c | 540 | const char *name = extra_refs->items[i].string; |
f2dc849e JS |
541 | struct object *object = extra_refs->items[i].util; |
542 | switch (object->type) { | |
543 | case OBJ_TAG: | |
544 | handle_tag(name, (struct tag *)object); | |
545 | break; | |
546 | case OBJ_COMMIT: | |
547 | /* create refs pointing to already seen commits */ | |
548 | commit = (struct commit *)object; | |
549 | printf("reset %s\nfrom :%d\n\n", name, | |
550 | get_object_mark(&commit->object)); | |
551 | show_progress(); | |
552 | break; | |
553 | } | |
554 | } | |
555 | } | |
556 | ||
df6a7ff7 PB |
557 | static void export_marks(char *file) |
558 | { | |
559 | unsigned int i; | |
560 | uint32_t mark; | |
561 | struct object_decoration *deco = idnums.hash; | |
562 | FILE *f; | |
96d69b55 | 563 | int e = 0; |
df6a7ff7 PB |
564 | |
565 | f = fopen(file, "w"); | |
566 | if (!f) | |
bb6ad28c | 567 | die_errno("Unable to open marks file %s for writing.", file); |
df6a7ff7 | 568 | |
69913575 JH |
569 | for (i = 0; i < idnums.size; i++) { |
570 | if (deco->base && deco->base->type == 1) { | |
df6a7ff7 | 571 | mark = ptr_to_mark(deco->decoration); |
96d69b55 MA |
572 | if (fprintf(f, ":%"PRIu32" %s\n", mark, |
573 | sha1_to_hex(deco->base->sha1)) < 0) { | |
574 | e = 1; | |
575 | break; | |
576 | } | |
df6a7ff7 | 577 | } |
69913575 | 578 | deco++; |
df6a7ff7 PB |
579 | } |
580 | ||
96d69b55 MA |
581 | e |= ferror(f); |
582 | e |= fclose(f); | |
583 | if (e) | |
df6a7ff7 PB |
584 | error("Unable to write marks file %s.", file); |
585 | } | |
586 | ||
69913575 | 587 | static void import_marks(char *input_file) |
df6a7ff7 PB |
588 | { |
589 | char line[512]; | |
590 | FILE *f = fopen(input_file, "r"); | |
591 | if (!f) | |
d824cbba | 592 | die_errno("cannot read '%s'", input_file); |
df6a7ff7 PB |
593 | |
594 | while (fgets(line, sizeof(line), f)) { | |
595 | uint32_t mark; | |
596 | char *line_end, *mark_end; | |
597 | unsigned char sha1[20]; | |
598 | struct object *object; | |
599 | ||
600 | line_end = strchr(line, '\n'); | |
601 | if (line[0] != ':' || !line_end) | |
602 | die("corrupt mark line: %s", line); | |
69913575 | 603 | *line_end = '\0'; |
df6a7ff7 PB |
604 | |
605 | mark = strtoumax(line + 1, &mark_end, 10); | |
606 | if (!mark || mark_end == line + 1 | |
607 | || *mark_end != ' ' || get_sha1(mark_end + 1, sha1)) | |
608 | die("corrupt mark line: %s", line); | |
609 | ||
610 | object = parse_object(sha1); | |
611 | if (!object) | |
612 | die ("Could not read blob %s", sha1_to_hex(sha1)); | |
613 | ||
614 | if (object->flags & SHOWN) | |
43bc2302 | 615 | error("Object %s already has a mark", sha1_to_hex(sha1)); |
df6a7ff7 PB |
616 | |
617 | mark_object(object, mark); | |
618 | if (last_idnum < mark) | |
619 | last_idnum = mark; | |
620 | ||
621 | object->flags |= SHOWN; | |
622 | } | |
623 | fclose(f); | |
624 | } | |
625 | ||
f2dc849e JS |
626 | int cmd_fast_export(int argc, const char **argv, const char *prefix) |
627 | { | |
628 | struct rev_info revs; | |
3cd47459 | 629 | struct object_array commits = OBJECT_ARRAY_INIT; |
183113a5 | 630 | struct string_list extra_refs = STRING_LIST_INIT_NODUP; |
f2dc849e | 631 | struct commit *commit; |
df6a7ff7 | 632 | char *export_filename = NULL, *import_filename = NULL; |
f2dc849e JS |
633 | struct option options[] = { |
634 | OPT_INTEGER(0, "progress", &progress, | |
3b787b96 NTND |
635 | N_("show progress after <n> objects")), |
636 | OPT_CALLBACK(0, "signed-tags", &signed_tag_mode, N_("mode"), | |
637 | N_("select handling of signed tags"), | |
f2dc849e | 638 | parse_opt_signed_tag_mode), |
3b787b96 NTND |
639 | OPT_CALLBACK(0, "tag-of-filtered-object", &tag_of_filtered_mode, N_("mode"), |
640 | N_("select handling of tags that tag filtered objects"), | |
2d8ad469 | 641 | parse_opt_tag_of_filtered_mode), |
3b787b96 NTND |
642 | OPT_STRING(0, "export-marks", &export_filename, N_("file"), |
643 | N_("Dump marks to this file")), | |
644 | OPT_STRING(0, "import-marks", &import_filename, N_("file"), | |
645 | N_("Import marks from this file")), | |
4e46a8d6 | 646 | OPT_BOOLEAN(0, "fake-missing-tagger", &fake_missing_tagger, |
3b787b96 | 647 | N_("Fake a tagger when tags lack one")), |
7f40ab09 | 648 | OPT_BOOLEAN(0, "full-tree", &full_tree, |
3b787b96 | 649 | N_("Output full tree for each commit")), |
82670a5c | 650 | OPT_BOOLEAN(0, "use-done-feature", &use_done_feature, |
3b787b96 NTND |
651 | N_("Use the done feature to terminate the stream")), |
652 | OPT_BOOL(0, "no-data", &no_data, N_("Skip output of blob data")), | |
f2dc849e JS |
653 | OPT_END() |
654 | }; | |
655 | ||
dcfdbdf0 MV |
656 | if (argc == 1) |
657 | usage_with_options (fast_export_usage, options); | |
658 | ||
f2dc849e | 659 | /* we handle encodings */ |
ef90d6d4 | 660 | git_config(git_default_config, NULL); |
f2dc849e JS |
661 | |
662 | init_revisions(&revs, prefix); | |
668f3aa7 | 663 | revs.topo_order = 1; |
2374502c | 664 | revs.show_source = 1; |
32164131 | 665 | revs.rewrite_parents = 1; |
f2dc849e | 666 | argc = setup_revisions(argc, argv, &revs, NULL); |
37782920 | 667 | argc = parse_options(argc, argv, prefix, options, fast_export_usage, 0); |
f2dc849e JS |
668 | if (argc > 1) |
669 | usage_with_options (fast_export_usage, options); | |
670 | ||
82670a5c SR |
671 | if (use_done_feature) |
672 | printf("feature done\n"); | |
673 | ||
df6a7ff7 PB |
674 | if (import_filename) |
675 | import_marks(import_filename); | |
676 | ||
afe069d1 | 677 | if (import_filename && revs.prune_data.nr) |
4087a02e EN |
678 | full_tree = 1; |
679 | ||
f2dc849e JS |
680 | get_tags_and_duplicates(&revs.pending, &extra_refs); |
681 | ||
3d51e1b5 MK |
682 | if (prepare_revision_walk(&revs)) |
683 | die("revision walk setup failed"); | |
f2dc849e JS |
684 | revs.diffopt.format_callback = show_filemodify; |
685 | DIFF_OPT_SET(&revs.diffopt, RECURSIVE); | |
686 | while ((commit = get_revision(&revs))) { | |
687 | if (has_unshown_parent(commit)) { | |
f2dc849e | 688 | add_object_array(&commit->object, NULL, &commits); |
f2dc849e JS |
689 | } |
690 | else { | |
691 | handle_commit(commit, &revs); | |
692 | handle_tail(&commits, &revs); | |
693 | } | |
694 | } | |
695 | ||
696 | handle_tags_and_duplicates(&extra_refs); | |
697 | ||
df6a7ff7 PB |
698 | if (export_filename) |
699 | export_marks(export_filename); | |
700 | ||
82670a5c SR |
701 | if (use_done_feature) |
702 | printf("done\n"); | |
703 | ||
f2dc849e JS |
704 | return 0; |
705 | } |