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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" | |
19 | ||
20 | static const char *fast_export_usage[] = { | |
1b1dd23f | 21 | "git fast-export [rev-list-opts]", |
f2dc849e JS |
22 | NULL |
23 | }; | |
24 | ||
25 | static int progress; | |
2d8ad469 EN |
26 | static enum { ABORT, VERBATIM, WARN, STRIP } signed_tag_mode = ABORT; |
27 | static enum { ERROR, DROP, REWRITE } tag_of_filtered_mode = ABORT; | |
4e46a8d6 | 28 | static int fake_missing_tagger; |
79559f27 | 29 | static int no_data; |
f2dc849e JS |
30 | |
31 | static int parse_opt_signed_tag_mode(const struct option *opt, | |
32 | const char *arg, int unset) | |
33 | { | |
34 | if (unset || !strcmp(arg, "abort")) | |
35 | signed_tag_mode = ABORT; | |
ee4bc371 JS |
36 | else if (!strcmp(arg, "verbatim") || !strcmp(arg, "ignore")) |
37 | signed_tag_mode = VERBATIM; | |
f2dc849e JS |
38 | else if (!strcmp(arg, "warn")) |
39 | signed_tag_mode = WARN; | |
40 | else if (!strcmp(arg, "strip")) | |
41 | signed_tag_mode = STRIP; | |
42 | else | |
43 | return error("Unknown signed-tag mode: %s", arg); | |
44 | return 0; | |
45 | } | |
46 | ||
2d8ad469 EN |
47 | static int parse_opt_tag_of_filtered_mode(const struct option *opt, |
48 | const char *arg, int unset) | |
49 | { | |
50 | if (unset || !strcmp(arg, "abort")) | |
51 | tag_of_filtered_mode = ABORT; | |
52 | else if (!strcmp(arg, "drop")) | |
53 | tag_of_filtered_mode = DROP; | |
54 | else if (!strcmp(arg, "rewrite")) | |
55 | tag_of_filtered_mode = REWRITE; | |
56 | else | |
57 | return error("Unknown tag-of-filtered mode: %s", arg); | |
58 | return 0; | |
59 | } | |
60 | ||
f2dc849e JS |
61 | static struct decoration idnums; |
62 | static uint32_t last_idnum; | |
63 | ||
64 | static int has_unshown_parent(struct commit *commit) | |
65 | { | |
66 | struct commit_list *parent; | |
67 | ||
68 | for (parent = commit->parents; parent; parent = parent->next) | |
69 | if (!(parent->item->object.flags & SHOWN) && | |
70 | !(parent->item->object.flags & UNINTERESTING)) | |
71 | return 1; | |
72 | return 0; | |
73 | } | |
74 | ||
75 | /* Since intptr_t is C99, we do not use it here */ | |
df6a7ff7 | 76 | static inline uint32_t *mark_to_ptr(uint32_t mark) |
f2dc849e | 77 | { |
df6a7ff7 PB |
78 | return ((uint32_t *)NULL) + mark; |
79 | } | |
80 | ||
81 | static inline uint32_t ptr_to_mark(void * mark) | |
82 | { | |
83 | return (uint32_t *)mark - (uint32_t *)NULL; | |
84 | } | |
85 | ||
86 | static inline void mark_object(struct object *object, uint32_t mark) | |
87 | { | |
88 | add_decoration(&idnums, object, mark_to_ptr(mark)); | |
89 | } | |
90 | ||
91 | static inline void mark_next_object(struct object *object) | |
92 | { | |
93 | mark_object(object, ++last_idnum); | |
f2dc849e JS |
94 | } |
95 | ||
96 | static int get_object_mark(struct object *object) | |
97 | { | |
98 | void *decoration = lookup_decoration(&idnums, object); | |
99 | if (!decoration) | |
100 | return 0; | |
df6a7ff7 | 101 | return ptr_to_mark(decoration); |
f2dc849e JS |
102 | } |
103 | ||
104 | static void show_progress(void) | |
105 | { | |
106 | static int counter = 0; | |
107 | if (!progress) | |
108 | return; | |
109 | if ((++counter % progress) == 0) | |
110 | printf("progress %d objects\n", counter); | |
111 | } | |
112 | ||
113 | static void handle_object(const unsigned char *sha1) | |
114 | { | |
115 | unsigned long size; | |
116 | enum object_type type; | |
117 | char *buf; | |
118 | struct object *object; | |
119 | ||
79559f27 GI |
120 | if (no_data) |
121 | return; | |
122 | ||
f2dc849e JS |
123 | if (is_null_sha1(sha1)) |
124 | return; | |
125 | ||
126 | object = parse_object(sha1); | |
127 | if (!object) | |
128 | die ("Could not read blob %s", sha1_to_hex(sha1)); | |
129 | ||
130 | if (object->flags & SHOWN) | |
131 | return; | |
132 | ||
133 | buf = read_sha1_file(sha1, &type, &size); | |
134 | if (!buf) | |
135 | die ("Could not read blob %s", sha1_to_hex(sha1)); | |
136 | ||
df6a7ff7 | 137 | mark_next_object(object); |
f2dc849e | 138 | |
6e1c2344 | 139 | printf("blob\nmark :%"PRIu32"\ndata %lu\n", last_idnum, size); |
b0fe0d72 | 140 | if (size && fwrite(buf, size, 1, stdout) != 1) |
0721c314 | 141 | die_errno ("Could not write blob '%s'", sha1_to_hex(sha1)); |
f2dc849e JS |
142 | printf("\n"); |
143 | ||
144 | show_progress(); | |
145 | ||
146 | object->flags |= SHOWN; | |
147 | free(buf); | |
148 | } | |
149 | ||
150 | static void show_filemodify(struct diff_queue_struct *q, | |
151 | struct diff_options *options, void *data) | |
152 | { | |
153 | int i; | |
154 | for (i = 0; i < q->nr; i++) { | |
ae7c5dce | 155 | struct diff_filespec *ospec = q->queue[i]->one; |
f2dc849e | 156 | struct diff_filespec *spec = q->queue[i]->two; |
ae7c5dce AG |
157 | |
158 | switch (q->queue[i]->status) { | |
159 | case DIFF_STATUS_DELETED: | |
f2dc849e | 160 | printf("D %s\n", spec->path); |
ae7c5dce AG |
161 | break; |
162 | ||
163 | case DIFF_STATUS_COPIED: | |
164 | case DIFF_STATUS_RENAMED: | |
165 | printf("%c \"%s\" \"%s\"\n", q->queue[i]->status, | |
166 | ospec->path, spec->path); | |
167 | ||
168 | if (!hashcmp(ospec->sha1, spec->sha1) && | |
169 | ospec->mode == spec->mode) | |
170 | break; | |
171 | /* fallthrough */ | |
172 | ||
173 | case DIFF_STATUS_TYPE_CHANGED: | |
174 | case DIFF_STATUS_MODIFIED: | |
175 | case DIFF_STATUS_ADDED: | |
03db4525 AG |
176 | /* |
177 | * Links refer to objects in another repositories; | |
178 | * output the SHA-1 verbatim. | |
179 | */ | |
79559f27 | 180 | if (no_data || S_ISGITLINK(spec->mode)) |
03db4525 AG |
181 | printf("M %06o %s %s\n", spec->mode, |
182 | sha1_to_hex(spec->sha1), spec->path); | |
183 | else { | |
184 | struct object *object = lookup_object(spec->sha1); | |
185 | printf("M %06o :%d %s\n", spec->mode, | |
186 | get_object_mark(object), spec->path); | |
187 | } | |
ae7c5dce AG |
188 | break; |
189 | ||
190 | default: | |
191 | die("Unexpected comparison status '%c' for %s, %s", | |
192 | q->queue[i]->status, | |
193 | ospec->path ? ospec->path : "none", | |
194 | spec->path ? spec->path : "none"); | |
f2dc849e JS |
195 | } |
196 | } | |
197 | } | |
198 | ||
199 | static const char *find_encoding(const char *begin, const char *end) | |
200 | { | |
201 | const char *needle = "\nencoding "; | |
202 | char *bol, *eol; | |
203 | ||
204 | bol = memmem(begin, end ? end - begin : strlen(begin), | |
205 | needle, strlen(needle)); | |
206 | if (!bol) | |
207 | return git_commit_encoding; | |
208 | bol += strlen(needle); | |
209 | eol = strchrnul(bol, '\n'); | |
210 | *eol = '\0'; | |
211 | return bol; | |
212 | } | |
213 | ||
214 | static void handle_commit(struct commit *commit, struct rev_info *rev) | |
215 | { | |
216 | int saved_output_format = rev->diffopt.output_format; | |
217 | const char *author, *author_end, *committer, *committer_end; | |
218 | const char *encoding, *message; | |
219 | char *reencoded = NULL; | |
220 | struct commit_list *p; | |
221 | int i; | |
222 | ||
223 | rev->diffopt.output_format = DIFF_FORMAT_CALLBACK; | |
224 | ||
225 | parse_commit(commit); | |
226 | author = strstr(commit->buffer, "\nauthor "); | |
227 | if (!author) | |
228 | die ("Could not find author in commit %s", | |
229 | sha1_to_hex(commit->object.sha1)); | |
230 | author++; | |
231 | author_end = strchrnul(author, '\n'); | |
232 | committer = strstr(author_end, "\ncommitter "); | |
233 | if (!committer) | |
234 | die ("Could not find committer in commit %s", | |
235 | sha1_to_hex(commit->object.sha1)); | |
236 | committer++; | |
237 | committer_end = strchrnul(committer, '\n'); | |
238 | message = strstr(committer_end, "\n\n"); | |
239 | encoding = find_encoding(committer_end, message); | |
240 | if (message) | |
241 | message += 2; | |
242 | ||
ebeec7db EN |
243 | if (commit->parents && |
244 | get_object_mark(&commit->parents->item->object) != 0) { | |
f2dc849e JS |
245 | parse_commit(commit->parents->item); |
246 | diff_tree_sha1(commit->parents->item->tree->object.sha1, | |
247 | commit->tree->object.sha1, "", &rev->diffopt); | |
248 | } | |
249 | else | |
250 | diff_root_tree_sha1(commit->tree->object.sha1, | |
251 | "", &rev->diffopt); | |
252 | ||
03db4525 | 253 | /* Export the referenced blobs, and remember the marks. */ |
f2dc849e | 254 | for (i = 0; i < diff_queued_diff.nr; i++) |
03db4525 AG |
255 | if (!S_ISGITLINK(diff_queued_diff.queue[i]->two->mode)) |
256 | handle_object(diff_queued_diff.queue[i]->two->sha1); | |
f2dc849e | 257 | |
df6a7ff7 | 258 | mark_next_object(&commit->object); |
f2dc849e JS |
259 | if (!is_encoding_utf8(encoding)) |
260 | reencoded = reencode_string(message, "UTF-8", encoding); | |
d8933f01 SP |
261 | if (!commit->parents) |
262 | printf("reset %s\n", (const char*)commit->util); | |
6e1c2344 | 263 | printf("commit %s\nmark :%"PRIu32"\n%.*s\n%.*s\ndata %u\n%s", |
f2dc849e JS |
264 | (const char *)commit->util, last_idnum, |
265 | (int)(author_end - author), author, | |
266 | (int)(committer_end - committer), committer, | |
267 | (unsigned)(reencoded | |
268 | ? strlen(reencoded) : message | |
269 | ? strlen(message) : 0), | |
270 | reencoded ? reencoded : message ? message : ""); | |
8e0f7003 | 271 | free(reencoded); |
f2dc849e JS |
272 | |
273 | for (i = 0, p = commit->parents; p; p = p->next) { | |
274 | int mark = get_object_mark(&p->item->object); | |
275 | if (!mark) | |
276 | continue; | |
277 | if (i == 0) | |
278 | printf("from :%d\n", mark); | |
f2dc849e | 279 | else |
5070b49e | 280 | printf("merge :%d\n", mark); |
f2dc849e JS |
281 | i++; |
282 | } | |
f2dc849e JS |
283 | |
284 | log_tree_diff_flush(rev); | |
285 | rev->diffopt.output_format = saved_output_format; | |
286 | ||
287 | printf("\n"); | |
288 | ||
289 | show_progress(); | |
290 | } | |
291 | ||
292 | static void handle_tail(struct object_array *commits, struct rev_info *revs) | |
293 | { | |
294 | struct commit *commit; | |
295 | while (commits->nr) { | |
296 | commit = (struct commit *)commits->objects[commits->nr - 1].item; | |
297 | if (has_unshown_parent(commit)) | |
298 | return; | |
299 | handle_commit(commit, revs); | |
300 | commits->nr--; | |
301 | } | |
302 | } | |
303 | ||
304 | static void handle_tag(const char *name, struct tag *tag) | |
305 | { | |
306 | unsigned long size; | |
307 | enum object_type type; | |
308 | char *buf; | |
309 | const char *tagger, *tagger_end, *message; | |
310 | size_t message_size = 0; | |
02c48cd6 | 311 | struct object *tagged; |
2d8ad469 EN |
312 | int tagged_mark; |
313 | struct commit *p; | |
02c48cd6 EN |
314 | |
315 | /* Trees have no identifer in fast-export output, thus we have no way | |
316 | * to output tags of trees, tags of tags of trees, etc. Simply omit | |
317 | * such tags. | |
318 | */ | |
319 | tagged = tag->tagged; | |
320 | while (tagged->type == OBJ_TAG) { | |
321 | tagged = ((struct tag *)tagged)->tagged; | |
322 | } | |
323 | if (tagged->type == OBJ_TREE) { | |
324 | warning("Omitting tag %s,\nsince tags of trees (or tags of tags of trees, etc.) are not supported.", | |
325 | sha1_to_hex(tag->object.sha1)); | |
326 | return; | |
327 | } | |
f2dc849e JS |
328 | |
329 | buf = read_sha1_file(tag->object.sha1, &type, &size); | |
330 | if (!buf) | |
331 | die ("Could not read tag %s", sha1_to_hex(tag->object.sha1)); | |
332 | message = memmem(buf, size, "\n\n", 2); | |
333 | if (message) { | |
334 | message += 2; | |
335 | message_size = strlen(message); | |
336 | } | |
337 | tagger = memmem(buf, message ? message - buf : size, "\ntagger ", 8); | |
4e46a8d6 JS |
338 | if (!tagger) { |
339 | if (fake_missing_tagger) | |
340 | tagger = "tagger Unspecified Tagger " | |
341 | "<unspecified-tagger> 0 +0000"; | |
342 | else | |
343 | tagger = ""; | |
344 | tagger_end = tagger + strlen(tagger); | |
345 | } else { | |
346 | tagger++; | |
347 | tagger_end = strchrnul(tagger, '\n'); | |
348 | } | |
f2dc849e JS |
349 | |
350 | /* handle signed tags */ | |
351 | if (message) { | |
352 | const char *signature = strstr(message, | |
353 | "\n-----BEGIN PGP SIGNATURE-----\n"); | |
354 | if (signature) | |
355 | switch(signed_tag_mode) { | |
356 | case ABORT: | |
357 | die ("Encountered signed tag %s; use " | |
358 | "--signed-tag=<mode> to handle it.", | |
359 | sha1_to_hex(tag->object.sha1)); | |
360 | case WARN: | |
361 | warning ("Exporting signed tag %s", | |
362 | sha1_to_hex(tag->object.sha1)); | |
363 | /* fallthru */ | |
ee4bc371 | 364 | case VERBATIM: |
f2dc849e JS |
365 | break; |
366 | case STRIP: | |
367 | message_size = signature + 1 - message; | |
368 | break; | |
369 | } | |
370 | } | |
371 | ||
2d8ad469 EN |
372 | /* handle tag->tagged having been filtered out due to paths specified */ |
373 | tagged = tag->tagged; | |
374 | tagged_mark = get_object_mark(tagged); | |
375 | if (!tagged_mark) { | |
376 | switch(tag_of_filtered_mode) { | |
377 | case ABORT: | |
378 | die ("Tag %s tags unexported object; use " | |
379 | "--tag-of-filtered-object=<mode> to handle it.", | |
380 | sha1_to_hex(tag->object.sha1)); | |
381 | case DROP: | |
382 | /* Ignore this tag altogether */ | |
383 | return; | |
384 | case REWRITE: | |
385 | if (tagged->type != OBJ_COMMIT) { | |
386 | die ("Tag %s tags unexported %s!", | |
387 | sha1_to_hex(tag->object.sha1), | |
388 | typename(tagged->type)); | |
389 | } | |
390 | p = (struct commit *)tagged; | |
391 | for (;;) { | |
392 | if (p->parents && p->parents->next) | |
393 | break; | |
394 | if (p->object.flags & UNINTERESTING) | |
395 | break; | |
396 | if (!(p->object.flags & TREESAME)) | |
397 | break; | |
398 | if (!p->parents) | |
399 | die ("Can't find replacement commit for tag %s\n", | |
400 | sha1_to_hex(tag->object.sha1)); | |
401 | p = p->parents->item; | |
402 | } | |
403 | tagged_mark = get_object_mark(&p->object); | |
404 | } | |
405 | } | |
406 | ||
f2dc849e JS |
407 | if (!prefixcmp(name, "refs/tags/")) |
408 | name += 10; | |
4e46a8d6 | 409 | printf("tag %s\nfrom :%d\n%.*s%sdata %d\n%.*s\n", |
2d8ad469 | 410 | name, tagged_mark, |
f2dc849e | 411 | (int)(tagger_end - tagger), tagger, |
4e46a8d6 | 412 | tagger == tagger_end ? "" : "\n", |
f2dc849e JS |
413 | (int)message_size, (int)message_size, message ? message : ""); |
414 | } | |
415 | ||
416 | static void get_tags_and_duplicates(struct object_array *pending, | |
c455c87c | 417 | struct string_list *extra_refs) |
f2dc849e JS |
418 | { |
419 | struct tag *tag; | |
420 | int i; | |
421 | ||
422 | for (i = 0; i < pending->nr; i++) { | |
423 | struct object_array_entry *e = pending->objects + i; | |
424 | unsigned char sha1[20]; | |
425 | struct commit *commit = commit; | |
426 | char *full_name; | |
427 | ||
428 | if (dwim_ref(e->name, strlen(e->name), sha1, &full_name) != 1) | |
429 | continue; | |
430 | ||
431 | switch (e->item->type) { | |
432 | case OBJ_COMMIT: | |
433 | commit = (struct commit *)e->item; | |
434 | break; | |
435 | case OBJ_TAG: | |
436 | tag = (struct tag *)e->item; | |
1982467d EFL |
437 | |
438 | /* handle nested tags */ | |
f2dc849e | 439 | while (tag && tag->object.type == OBJ_TAG) { |
1982467d | 440 | parse_object(tag->object.sha1); |
2075ffb5 | 441 | string_list_append(full_name, extra_refs)->util = tag; |
f2dc849e JS |
442 | tag = (struct tag *)tag->tagged; |
443 | } | |
444 | if (!tag) | |
445 | die ("Tag %s points nowhere?", e->name); | |
446 | switch(tag->object.type) { | |
447 | case OBJ_COMMIT: | |
448 | commit = (struct commit *)tag; | |
449 | break; | |
450 | case OBJ_BLOB: | |
451 | handle_object(tag->object.sha1); | |
452 | continue; | |
1982467d | 453 | default: /* OBJ_TAG (nested tags) is already handled */ |
c0582c53 EFL |
454 | warning("Tag points to object of unexpected type %s, skipping.", |
455 | typename(tag->object.type)); | |
456 | continue; | |
f2dc849e JS |
457 | } |
458 | break; | |
459 | default: | |
2d07f6d4 EFL |
460 | warning("%s: Unexpected object of type %s, skipping.", |
461 | e->name, | |
462 | typename(e->item->type)); | |
463 | continue; | |
f2dc849e JS |
464 | } |
465 | if (commit->util) | |
466 | /* more than one name for the same object */ | |
2075ffb5 | 467 | string_list_append(full_name, extra_refs)->util = commit; |
f2dc849e JS |
468 | else |
469 | commit->util = full_name; | |
470 | } | |
471 | } | |
472 | ||
c455c87c | 473 | static void handle_tags_and_duplicates(struct string_list *extra_refs) |
f2dc849e JS |
474 | { |
475 | struct commit *commit; | |
476 | int i; | |
477 | ||
478 | for (i = extra_refs->nr - 1; i >= 0; i--) { | |
c455c87c | 479 | const char *name = extra_refs->items[i].string; |
f2dc849e JS |
480 | struct object *object = extra_refs->items[i].util; |
481 | switch (object->type) { | |
482 | case OBJ_TAG: | |
483 | handle_tag(name, (struct tag *)object); | |
484 | break; | |
485 | case OBJ_COMMIT: | |
486 | /* create refs pointing to already seen commits */ | |
487 | commit = (struct commit *)object; | |
488 | printf("reset %s\nfrom :%d\n\n", name, | |
489 | get_object_mark(&commit->object)); | |
490 | show_progress(); | |
491 | break; | |
492 | } | |
493 | } | |
494 | } | |
495 | ||
df6a7ff7 PB |
496 | static void export_marks(char *file) |
497 | { | |
498 | unsigned int i; | |
499 | uint32_t mark; | |
500 | struct object_decoration *deco = idnums.hash; | |
501 | FILE *f; | |
96d69b55 | 502 | int e = 0; |
df6a7ff7 PB |
503 | |
504 | f = fopen(file, "w"); | |
505 | if (!f) | |
96d69b55 | 506 | error("Unable to open marks file %s for writing.", file); |
df6a7ff7 | 507 | |
69913575 JH |
508 | for (i = 0; i < idnums.size; i++) { |
509 | if (deco->base && deco->base->type == 1) { | |
df6a7ff7 | 510 | mark = ptr_to_mark(deco->decoration); |
96d69b55 MA |
511 | if (fprintf(f, ":%"PRIu32" %s\n", mark, |
512 | sha1_to_hex(deco->base->sha1)) < 0) { | |
513 | e = 1; | |
514 | break; | |
515 | } | |
df6a7ff7 | 516 | } |
69913575 | 517 | deco++; |
df6a7ff7 PB |
518 | } |
519 | ||
96d69b55 MA |
520 | e |= ferror(f); |
521 | e |= fclose(f); | |
522 | if (e) | |
df6a7ff7 PB |
523 | error("Unable to write marks file %s.", file); |
524 | } | |
525 | ||
69913575 | 526 | static void import_marks(char *input_file) |
df6a7ff7 PB |
527 | { |
528 | char line[512]; | |
529 | FILE *f = fopen(input_file, "r"); | |
530 | if (!f) | |
d824cbba | 531 | die_errno("cannot read '%s'", input_file); |
df6a7ff7 PB |
532 | |
533 | while (fgets(line, sizeof(line), f)) { | |
534 | uint32_t mark; | |
535 | char *line_end, *mark_end; | |
536 | unsigned char sha1[20]; | |
537 | struct object *object; | |
538 | ||
539 | line_end = strchr(line, '\n'); | |
540 | if (line[0] != ':' || !line_end) | |
541 | die("corrupt mark line: %s", line); | |
69913575 | 542 | *line_end = '\0'; |
df6a7ff7 PB |
543 | |
544 | mark = strtoumax(line + 1, &mark_end, 10); | |
545 | if (!mark || mark_end == line + 1 | |
546 | || *mark_end != ' ' || get_sha1(mark_end + 1, sha1)) | |
547 | die("corrupt mark line: %s", line); | |
548 | ||
549 | object = parse_object(sha1); | |
550 | if (!object) | |
551 | die ("Could not read blob %s", sha1_to_hex(sha1)); | |
552 | ||
553 | if (object->flags & SHOWN) | |
554 | error("Object %s already has a mark", sha1); | |
555 | ||
556 | mark_object(object, mark); | |
557 | if (last_idnum < mark) | |
558 | last_idnum = mark; | |
559 | ||
560 | object->flags |= SHOWN; | |
561 | } | |
562 | fclose(f); | |
563 | } | |
564 | ||
f2dc849e JS |
565 | int cmd_fast_export(int argc, const char **argv, const char *prefix) |
566 | { | |
567 | struct rev_info revs; | |
568 | struct object_array commits = { 0, 0, NULL }; | |
c455c87c | 569 | struct string_list extra_refs = { NULL, 0, 0, 0 }; |
f2dc849e | 570 | struct commit *commit; |
df6a7ff7 | 571 | char *export_filename = NULL, *import_filename = NULL; |
f2dc849e JS |
572 | struct option options[] = { |
573 | OPT_INTEGER(0, "progress", &progress, | |
574 | "show progress after <n> objects"), | |
575 | OPT_CALLBACK(0, "signed-tags", &signed_tag_mode, "mode", | |
576 | "select handling of signed tags", | |
577 | parse_opt_signed_tag_mode), | |
2d8ad469 EN |
578 | OPT_CALLBACK(0, "tag-of-filtered-object", &tag_of_filtered_mode, "mode", |
579 | "select handling of tags that tag filtered objects", | |
580 | parse_opt_tag_of_filtered_mode), | |
df6a7ff7 PB |
581 | OPT_STRING(0, "export-marks", &export_filename, "FILE", |
582 | "Dump marks to this file"), | |
583 | OPT_STRING(0, "import-marks", &import_filename, "FILE", | |
584 | "Import marks from this file"), | |
4e46a8d6 JS |
585 | OPT_BOOLEAN(0, "fake-missing-tagger", &fake_missing_tagger, |
586 | "Fake a tagger when tags lack one"), | |
79559f27 GI |
587 | { OPTION_NEGBIT, 0, "data", &no_data, NULL, |
588 | "Skip output of blob data", | |
589 | PARSE_OPT_NOARG | PARSE_OPT_NEGHELP, NULL, 1 }, | |
f2dc849e JS |
590 | OPT_END() |
591 | }; | |
592 | ||
dcfdbdf0 MV |
593 | if (argc == 1) |
594 | usage_with_options (fast_export_usage, options); | |
595 | ||
f2dc849e | 596 | /* we handle encodings */ |
ef90d6d4 | 597 | git_config(git_default_config, NULL); |
f2dc849e JS |
598 | |
599 | init_revisions(&revs, prefix); | |
668f3aa7 | 600 | revs.topo_order = 1; |
2374502c | 601 | revs.show_source = 1; |
32164131 | 602 | revs.rewrite_parents = 1; |
f2dc849e | 603 | argc = setup_revisions(argc, argv, &revs, NULL); |
37782920 | 604 | argc = parse_options(argc, argv, prefix, options, fast_export_usage, 0); |
f2dc849e JS |
605 | if (argc > 1) |
606 | usage_with_options (fast_export_usage, options); | |
607 | ||
df6a7ff7 PB |
608 | if (import_filename) |
609 | import_marks(import_filename); | |
610 | ||
f2dc849e JS |
611 | get_tags_and_duplicates(&revs.pending, &extra_refs); |
612 | ||
3d51e1b5 MK |
613 | if (prepare_revision_walk(&revs)) |
614 | die("revision walk setup failed"); | |
f2dc849e JS |
615 | revs.diffopt.format_callback = show_filemodify; |
616 | DIFF_OPT_SET(&revs.diffopt, RECURSIVE); | |
617 | while ((commit = get_revision(&revs))) { | |
618 | if (has_unshown_parent(commit)) { | |
f2dc849e | 619 | add_object_array(&commit->object, NULL, &commits); |
f2dc849e JS |
620 | } |
621 | else { | |
622 | handle_commit(commit, &revs); | |
623 | handle_tail(&commits, &revs); | |
624 | } | |
625 | } | |
626 | ||
627 | handle_tags_and_duplicates(&extra_refs); | |
628 | ||
df6a7ff7 PB |
629 | if (export_filename) |
630 | export_marks(export_filename); | |
631 | ||
f2dc849e JS |
632 | return 0; |
633 | } |