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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" | |
b2141fc1 | 7 | #include "config.h" |
f394e093 | 8 | #include "gettext.h" |
41771fa4 | 9 | #include "hex.h" |
fb58c8d5 | 10 | #include "refs.h" |
ec0cb496 | 11 | #include "refspec.h" |
87bed179 | 12 | #include "object-file.h" |
a034e910 | 13 | #include "object-store-ll.h" |
f2dc849e JS |
14 | #include "commit.h" |
15 | #include "object.h" | |
16 | #include "tag.h" | |
17 | #include "diff.h" | |
18 | #include "diffcore.h" | |
19 | #include "log-tree.h" | |
20 | #include "revision.h" | |
21 | #include "decorate.h" | |
c455c87c | 22 | #include "string-list.h" |
f2dc849e JS |
23 | #include "utf8.h" |
24 | #include "parse-options.h" | |
6280dfdc | 25 | #include "quote.h" |
03e9010c | 26 | #include "remote.h" |
a8722750 | 27 | #include "blob.h" |
87be2523 | 28 | #include "commit-slab.h" |
f2dc849e JS |
29 | |
30 | static const char *fast_export_usage[] = { | |
9164d97a | 31 | N_("git fast-export [<rev-list-opts>]"), |
f2dc849e JS |
32 | NULL |
33 | }; | |
34 | ||
35 | static int progress; | |
66e33092 JK |
36 | static enum signed_tag_mode { SIGNED_TAG_ABORT, VERBATIM, WARN, WARN_STRIP, STRIP } signed_tag_mode = SIGNED_TAG_ABORT; |
37 | static enum tag_of_filtered_mode { TAG_FILTERING_ABORT, DROP, REWRITE } tag_of_filtered_mode = TAG_FILTERING_ABORT; | |
38 | static enum reencode_mode { REENCODE_ABORT, REENCODE_YES, REENCODE_NO } reencode_mode = REENCODE_ABORT; | |
4e46a8d6 | 39 | static int fake_missing_tagger; |
82670a5c | 40 | static int use_done_feature; |
79559f27 | 41 | static int no_data; |
7f40ab09 | 42 | static int full_tree; |
530ca19c | 43 | static int reference_excluded_commits; |
a965bb31 | 44 | static int show_original_ids; |
a1638cfe | 45 | static int mark_tags; |
1d844ee7 | 46 | static struct string_list extra_refs = STRING_LIST_INIT_NODUP; |
fdf31b63 | 47 | static struct string_list tag_refs = STRING_LIST_INIT_NODUP; |
16eefc8e | 48 | static struct refspec refspecs = REFSPEC_INIT_FETCH; |
a8722750 | 49 | static int anonymize; |
65b5d9fa | 50 | static struct hashmap anonymized_seeds; |
87be2523 | 51 | static struct revision_sources revision_sources; |
f2dc849e JS |
52 | |
53 | static int parse_opt_signed_tag_mode(const struct option *opt, | |
54 | const char *arg, int unset) | |
55 | { | |
66e33092 JK |
56 | enum signed_tag_mode *val = opt->value; |
57 | ||
f2dc849e | 58 | if (unset || !strcmp(arg, "abort")) |
66e33092 | 59 | *val = SIGNED_TAG_ABORT; |
ee4bc371 | 60 | else if (!strcmp(arg, "verbatim") || !strcmp(arg, "ignore")) |
66e33092 | 61 | *val = VERBATIM; |
f2dc849e | 62 | else if (!strcmp(arg, "warn")) |
66e33092 | 63 | *val = WARN; |
cd16c59b | 64 | else if (!strcmp(arg, "warn-strip")) |
66e33092 | 65 | *val = WARN_STRIP; |
f2dc849e | 66 | else if (!strcmp(arg, "strip")) |
66e33092 | 67 | *val = STRIP; |
f2dc849e | 68 | else |
04a74b6c | 69 | return error("Unknown signed-tags mode: %s", arg); |
f2dc849e JS |
70 | return 0; |
71 | } | |
72 | ||
2d8ad469 EN |
73 | static int parse_opt_tag_of_filtered_mode(const struct option *opt, |
74 | const char *arg, int unset) | |
75 | { | |
66e33092 JK |
76 | enum tag_of_filtered_mode *val = opt->value; |
77 | ||
2d8ad469 | 78 | if (unset || !strcmp(arg, "abort")) |
66e33092 | 79 | *val = TAG_FILTERING_ABORT; |
2d8ad469 | 80 | else if (!strcmp(arg, "drop")) |
66e33092 | 81 | *val = DROP; |
2d8ad469 | 82 | else if (!strcmp(arg, "rewrite")) |
66e33092 | 83 | *val = REWRITE; |
2d8ad469 EN |
84 | else |
85 | return error("Unknown tag-of-filtered mode: %s", arg); | |
86 | return 0; | |
87 | } | |
88 | ||
e80001f8 EN |
89 | static int parse_opt_reencode_mode(const struct option *opt, |
90 | const char *arg, int unset) | |
91 | { | |
66e33092 JK |
92 | enum reencode_mode *val = opt->value; |
93 | ||
e80001f8 | 94 | if (unset) { |
66e33092 | 95 | *val = REENCODE_ABORT; |
e80001f8 EN |
96 | return 0; |
97 | } | |
98 | ||
99 | switch (git_parse_maybe_bool(arg)) { | |
100 | case 0: | |
66e33092 | 101 | *val = REENCODE_NO; |
e80001f8 EN |
102 | break; |
103 | case 1: | |
66e33092 | 104 | *val = REENCODE_YES; |
e80001f8 EN |
105 | break; |
106 | default: | |
107 | if (!strcasecmp(arg, "abort")) | |
66e33092 | 108 | *val = REENCODE_ABORT; |
e80001f8 EN |
109 | else |
110 | return error("Unknown reencoding mode: %s", arg); | |
111 | } | |
112 | ||
113 | return 0; | |
114 | } | |
115 | ||
f2dc849e JS |
116 | static struct decoration idnums; |
117 | static uint32_t last_idnum; | |
a8722750 JK |
118 | struct anonymized_entry { |
119 | struct hashmap_entry hash; | |
76e50f7f | 120 | char *anon; |
55b01456 | 121 | const char orig[FLEX_ARRAY]; |
a0f65641 JK |
122 | }; |
123 | ||
124 | struct anonymized_entry_key { | |
125 | struct hashmap_entry hash; | |
126 | const char *orig; | |
127 | size_t orig_len; | |
a8722750 JK |
128 | }; |
129 | ||
5cf88fd8 | 130 | static int anonymized_entry_cmp(const void *cmp_data UNUSED, |
939af16e EW |
131 | const struct hashmap_entry *eptr, |
132 | const struct hashmap_entry *entry_or_key, | |
a0f65641 | 133 | const void *keydata) |
a8722750 | 134 | { |
939af16e EW |
135 | const struct anonymized_entry *a, *b; |
136 | ||
137 | a = container_of(eptr, const struct anonymized_entry, hash); | |
a0f65641 JK |
138 | if (keydata) { |
139 | const struct anonymized_entry_key *key = keydata; | |
140 | int equal = !strncmp(a->orig, key->orig, key->orig_len) && | |
141 | !a->orig[key->orig_len]; | |
142 | return !equal; | |
143 | } | |
939af16e | 144 | |
a0f65641 JK |
145 | b = container_of(entry_or_key, const struct anonymized_entry, hash); |
146 | return strcmp(a->orig, b->orig); | |
a8722750 JK |
147 | } |
148 | ||
dcc4e134 JK |
149 | static struct anonymized_entry *add_anonymized_entry(struct hashmap *map, |
150 | unsigned hash, | |
151 | const char *orig, size_t len, | |
152 | char *anon) | |
153 | { | |
154 | struct anonymized_entry *ret, *old; | |
155 | ||
156 | if (!map->cmpfn) | |
157 | hashmap_init(map, anonymized_entry_cmp, NULL, 0); | |
158 | ||
159 | FLEX_ALLOC_MEM(ret, orig, orig, len); | |
160 | hashmap_entry_init(&ret->hash, hash); | |
161 | ret->anon = anon; | |
162 | old = hashmap_put_entry(map, ret, hash); | |
163 | ||
164 | if (old) { | |
165 | free(old->anon); | |
166 | free(old); | |
167 | } | |
168 | ||
169 | return ret; | |
170 | } | |
171 | ||
a8722750 JK |
172 | /* |
173 | * Basically keep a cache of X->Y so that we can repeatedly replace | |
174 | * the same anonymized string with another. The actual generation | |
175 | * is farmed out to the generate function. | |
176 | */ | |
7f407594 | 177 | static const char *anonymize_str(struct hashmap *map, |
65c756ff JK |
178 | char *(*generate)(void), |
179 | const char *orig, size_t len) | |
a8722750 | 180 | { |
a0f65641 JK |
181 | struct anonymized_entry_key key; |
182 | struct anonymized_entry *ret; | |
a8722750 | 183 | |
7f407594 | 184 | hashmap_entry_init(&key.hash, memhash(orig, len)); |
a8722750 | 185 | key.orig = orig; |
7f407594 | 186 | key.orig_len = len; |
a8722750 | 187 | |
65b5d9fa | 188 | /* First check if it's a token the user configured manually... */ |
d6484e9f | 189 | ret = hashmap_get_entry(&anonymized_seeds, &key, hash, &key); |
65b5d9fa JK |
190 | |
191 | /* ...otherwise check if we've already seen it in this context... */ | |
192 | if (!ret) | |
193 | ret = hashmap_get_entry(map, &key, hash, &key); | |
194 | ||
195 | /* ...and finally generate a new mapping if necessary */ | |
dcc4e134 JK |
196 | if (!ret) |
197 | ret = add_anonymized_entry(map, key.hash.hash, | |
65c756ff | 198 | orig, len, generate()); |
a8722750 | 199 | |
a8722750 JK |
200 | return ret->anon; |
201 | } | |
202 | ||
203 | /* | |
204 | * We anonymize each component of a path individually, | |
205 | * so that paths a/b and a/c will share a common root. | |
206 | * The paths are cached via anonymize_mem so that repeated | |
207 | * lookups for "a" will yield the same value. | |
208 | */ | |
209 | static void anonymize_path(struct strbuf *out, const char *path, | |
210 | struct hashmap *map, | |
65c756ff | 211 | char *(*generate)(void)) |
a8722750 JK |
212 | { |
213 | while (*path) { | |
214 | const char *end_of_component = strchrnul(path, '/'); | |
215 | size_t len = end_of_component - path; | |
65c756ff | 216 | const char *c = anonymize_str(map, generate, path, len); |
7f407594 | 217 | strbuf_addstr(out, c); |
a8722750 JK |
218 | path = end_of_component; |
219 | if (*path) | |
220 | strbuf_addch(out, *path++); | |
221 | } | |
222 | } | |
223 | ||
c112084a | 224 | static inline void *mark_to_ptr(uint32_t mark) |
f2dc849e | 225 | { |
c112084a | 226 | return (void *)(uintptr_t)mark; |
df6a7ff7 PB |
227 | } |
228 | ||
229 | static inline uint32_t ptr_to_mark(void * mark) | |
230 | { | |
c112084a | 231 | return (uint32_t)(uintptr_t)mark; |
df6a7ff7 PB |
232 | } |
233 | ||
234 | static inline void mark_object(struct object *object, uint32_t mark) | |
235 | { | |
236 | add_decoration(&idnums, object, mark_to_ptr(mark)); | |
237 | } | |
238 | ||
239 | static inline void mark_next_object(struct object *object) | |
240 | { | |
241 | mark_object(object, ++last_idnum); | |
f2dc849e JS |
242 | } |
243 | ||
244 | static int get_object_mark(struct object *object) | |
245 | { | |
246 | void *decoration = lookup_decoration(&idnums, object); | |
247 | if (!decoration) | |
248 | return 0; | |
df6a7ff7 | 249 | return ptr_to_mark(decoration); |
f2dc849e JS |
250 | } |
251 | ||
f129c427 EN |
252 | static struct commit *rewrite_commit(struct commit *p) |
253 | { | |
254 | for (;;) { | |
255 | if (p->parents && p->parents->next) | |
256 | break; | |
257 | if (p->object.flags & UNINTERESTING) | |
258 | break; | |
259 | if (!(p->object.flags & TREESAME)) | |
260 | break; | |
261 | if (!p->parents) | |
262 | return NULL; | |
263 | p = p->parents->item; | |
264 | } | |
265 | return p; | |
266 | } | |
267 | ||
f2dc849e JS |
268 | static void show_progress(void) |
269 | { | |
270 | static int counter = 0; | |
271 | if (!progress) | |
272 | return; | |
273 | if ((++counter % progress) == 0) | |
274 | printf("progress %d objects\n", counter); | |
275 | } | |
276 | ||
a8722750 JK |
277 | /* |
278 | * Ideally we would want some transformation of the blob data here | |
279 | * that is unreversible, but would still be the same size and have | |
280 | * the same data relationship to other blobs (so that we get the same | |
281 | * delta and packing behavior as the original). But the first and last | |
282 | * requirements there are probably mutually exclusive, so let's take | |
283 | * the easy way out for now, and just generate arbitrary content. | |
284 | * | |
285 | * There's no need to cache this result with anonymize_mem, since | |
286 | * we already handle blob content caching with marks. | |
287 | */ | |
288 | static char *anonymize_blob(unsigned long *size) | |
289 | { | |
290 | static int counter; | |
291 | struct strbuf out = STRBUF_INIT; | |
292 | strbuf_addf(&out, "anonymous blob %d", counter++); | |
293 | *size = out.len; | |
294 | return strbuf_detach(&out, NULL); | |
295 | } | |
296 | ||
273f8ee8 | 297 | static void export_blob(const struct object_id *oid) |
f2dc849e JS |
298 | { |
299 | unsigned long size; | |
300 | enum object_type type; | |
301 | char *buf; | |
302 | struct object *object; | |
30b939c3 | 303 | int eaten; |
f2dc849e | 304 | |
79559f27 GI |
305 | if (no_data) |
306 | return; | |
307 | ||
273f8ee8 | 308 | if (is_null_oid(oid)) |
f2dc849e JS |
309 | return; |
310 | ||
d0229abd | 311 | object = lookup_object(the_repository, oid); |
30b939c3 | 312 | if (object && object->flags & SHOWN) |
f2dc849e JS |
313 | return; |
314 | ||
a8722750 JK |
315 | if (anonymize) { |
316 | buf = anonymize_blob(&size); | |
da14a7ff | 317 | object = (struct object *)lookup_blob(the_repository, oid); |
a8722750 JK |
318 | eaten = 0; |
319 | } else { | |
bc726bd0 | 320 | buf = repo_read_object_file(the_repository, oid, &type, &size); |
a8722750 | 321 | if (!buf) |
1a07e59c | 322 | die("could not read blob %s", oid_to_hex(oid)); |
b98d1885 | 323 | if (check_object_signature(the_repository, oid, buf, size, |
44439c1c | 324 | type) < 0) |
843b9e6d | 325 | die("oid mismatch in blob %s", oid_to_hex(oid)); |
1ec5bfd2 SB |
326 | object = parse_object_buffer(the_repository, oid, type, |
327 | size, buf, &eaten); | |
a8722750 JK |
328 | } |
329 | ||
30b939c3 | 330 | if (!object) |
273f8ee8 | 331 | die("Could not read blob %s", oid_to_hex(oid)); |
f2dc849e | 332 | |
df6a7ff7 | 333 | mark_next_object(object); |
f2dc849e | 334 | |
a965bb31 EN |
335 | printf("blob\nmark :%"PRIu32"\n", last_idnum); |
336 | if (show_original_ids) | |
337 | printf("original-oid %s\n", oid_to_hex(oid)); | |
4d597532 | 338 | printf("data %"PRIuMAX"\n", (uintmax_t)size); |
b0fe0d72 | 339 | if (size && fwrite(buf, size, 1, stdout) != 1) |
1a07e59c | 340 | die_errno("could not write blob '%s'", oid_to_hex(oid)); |
f2dc849e JS |
341 | printf("\n"); |
342 | ||
343 | show_progress(); | |
344 | ||
345 | object->flags |= SHOWN; | |
30b939c3 JK |
346 | if (!eaten) |
347 | free(buf); | |
f2dc849e JS |
348 | } |
349 | ||
060df624 EN |
350 | static int depth_first(const void *a_, const void *b_) |
351 | { | |
352 | const struct diff_filepair *a = *((const struct diff_filepair **)a_); | |
353 | const struct diff_filepair *b = *((const struct diff_filepair **)b_); | |
354 | const char *name_a, *name_b; | |
355 | int len_a, len_b, len; | |
356 | int cmp; | |
357 | ||
358 | name_a = a->one ? a->one->path : a->two->path; | |
359 | name_b = b->one ? b->one->path : b->two->path; | |
360 | ||
361 | len_a = strlen(name_a); | |
362 | len_b = strlen(name_b); | |
363 | len = (len_a < len_b) ? len_a : len_b; | |
364 | ||
365 | /* strcmp will sort 'd' before 'd/e', we want 'd/e' before 'd' */ | |
366 | cmp = memcmp(name_a, name_b, len); | |
367 | if (cmp) | |
368 | return cmp; | |
4ce6fb80 JS |
369 | cmp = len_b - len_a; |
370 | if (cmp) | |
371 | return cmp; | |
372 | /* | |
373 | * Move 'R'ename entries last so that all references of the file | |
374 | * appear in the output before it is renamed (e.g., when a file | |
375 | * was copied and renamed in the same commit). | |
376 | */ | |
377 | return (a->status == 'R') - (b->status == 'R'); | |
060df624 EN |
378 | } |
379 | ||
a8722750 | 380 | static void print_path_1(const char *path) |
6280dfdc JK |
381 | { |
382 | int need_quote = quote_c_style(path, NULL, NULL, 0); | |
383 | if (need_quote) | |
384 | quote_c_style(path, NULL, stdout, 0); | |
ff59f6da JS |
385 | else if (strchr(path, ' ')) |
386 | printf("\"%s\"", path); | |
6280dfdc JK |
387 | else |
388 | printf("%s", path); | |
389 | } | |
390 | ||
65c756ff | 391 | static char *anonymize_path_component(void) |
a8722750 JK |
392 | { |
393 | static int counter; | |
394 | struct strbuf out = STRBUF_INIT; | |
395 | strbuf_addf(&out, "path%d", counter++); | |
7f407594 | 396 | return strbuf_detach(&out, NULL); |
a8722750 JK |
397 | } |
398 | ||
399 | static void print_path(const char *path) | |
400 | { | |
401 | if (!anonymize) | |
402 | print_path_1(path); | |
403 | else { | |
404 | static struct hashmap paths; | |
405 | static struct strbuf anon = STRBUF_INIT; | |
406 | ||
407 | anonymize_path(&anon, path, &paths, anonymize_path_component); | |
408 | print_path_1(anon.buf); | |
409 | strbuf_reset(&anon); | |
410 | } | |
411 | } | |
412 | ||
65c756ff | 413 | static char *generate_fake_oid(void) |
a8722750 | 414 | { |
843b9e6d EN |
415 | static uint32_t counter = 1; /* avoid null oid */ |
416 | const unsigned hashsz = the_hash_algo->rawsz; | |
176380fd | 417 | struct object_id oid; |
750bb325 JK |
418 | char *hex = xmallocz(GIT_MAX_HEXSZ); |
419 | ||
176380fd JK |
420 | oidclr(&oid); |
421 | put_be32(oid.hash + hashsz - 4, counter++); | |
422 | return oid_to_hex_r(hex, &oid); | |
a8722750 JK |
423 | } |
424 | ||
750bb325 | 425 | static const char *anonymize_oid(const char *oid_hex) |
a8722750 | 426 | { |
843b9e6d | 427 | static struct hashmap objs; |
750bb325 | 428 | size_t len = strlen(oid_hex); |
65c756ff | 429 | return anonymize_str(&objs, generate_fake_oid, oid_hex, len); |
a8722750 JK |
430 | } |
431 | ||
f2dc849e | 432 | static void show_filemodify(struct diff_queue_struct *q, |
61bdc7c5 | 433 | struct diff_options *options UNUSED, void *data) |
f2dc849e JS |
434 | { |
435 | int i; | |
b3e8ca89 | 436 | struct string_list *changed = data; |
060df624 EN |
437 | |
438 | /* | |
439 | * Handle files below a directory first, in case they are all deleted | |
440 | * and the directory changes to a file or symlink. | |
441 | */ | |
9ed0d8d6 | 442 | QSORT(q->queue, q->nr, depth_first); |
060df624 | 443 | |
f2dc849e | 444 | for (i = 0; i < q->nr; i++) { |
ae7c5dce | 445 | struct diff_filespec *ospec = q->queue[i]->one; |
f2dc849e | 446 | struct diff_filespec *spec = q->queue[i]->two; |
ae7c5dce AG |
447 | |
448 | switch (q->queue[i]->status) { | |
449 | case DIFF_STATUS_DELETED: | |
6280dfdc JK |
450 | printf("D "); |
451 | print_path(spec->path); | |
b3e8ca89 | 452 | string_list_insert(changed, spec->path); |
6280dfdc | 453 | putchar('\n'); |
ae7c5dce AG |
454 | break; |
455 | ||
456 | case DIFF_STATUS_COPIED: | |
457 | case DIFF_STATUS_RENAMED: | |
b3e8ca89 JT |
458 | /* |
459 | * If a change in the file corresponding to ospec->path | |
460 | * has been observed, we cannot trust its contents | |
461 | * because the diff is calculated based on the prior | |
462 | * contents, not the current contents. So, declare a | |
463 | * copy or rename only if there was no change observed. | |
464 | */ | |
465 | if (!string_list_has_string(changed, ospec->path)) { | |
466 | printf("%c ", q->queue[i]->status); | |
467 | print_path(ospec->path); | |
468 | putchar(' '); | |
469 | print_path(spec->path); | |
470 | string_list_insert(changed, spec->path); | |
471 | putchar('\n'); | |
472 | ||
4a7e27e9 | 473 | if (oideq(&ospec->oid, &spec->oid) && |
b3e8ca89 JT |
474 | ospec->mode == spec->mode) |
475 | break; | |
476 | } | |
ae7c5dce AG |
477 | /* fallthrough */ |
478 | ||
479 | case DIFF_STATUS_TYPE_CHANGED: | |
480 | case DIFF_STATUS_MODIFIED: | |
481 | case DIFF_STATUS_ADDED: | |
03db4525 AG |
482 | /* |
483 | * Links refer to objects in another repositories; | |
484 | * output the SHA-1 verbatim. | |
485 | */ | |
79559f27 | 486 | if (no_data || S_ISGITLINK(spec->mode)) |
6280dfdc | 487 | printf("M %06o %s ", spec->mode, |
750bb325 JK |
488 | anonymize ? |
489 | anonymize_oid(oid_to_hex(&spec->oid)) : | |
490 | oid_to_hex(&spec->oid)); | |
03db4525 | 491 | else { |
5abddd1e | 492 | struct object *object = lookup_object(the_repository, |
d0229abd | 493 | &spec->oid); |
6280dfdc JK |
494 | printf("M %06o :%d ", spec->mode, |
495 | get_object_mark(object)); | |
03db4525 | 496 | } |
6280dfdc | 497 | print_path(spec->path); |
b3e8ca89 | 498 | string_list_insert(changed, spec->path); |
6280dfdc | 499 | putchar('\n'); |
ae7c5dce AG |
500 | break; |
501 | ||
502 | default: | |
503 | die("Unexpected comparison status '%c' for %s, %s", | |
504 | q->queue[i]->status, | |
505 | ospec->path ? ospec->path : "none", | |
506 | spec->path ? spec->path : "none"); | |
f2dc849e JS |
507 | } |
508 | } | |
509 | } | |
510 | ||
511 | static const char *find_encoding(const char *begin, const char *end) | |
512 | { | |
513 | const char *needle = "\nencoding "; | |
514 | char *bol, *eol; | |
515 | ||
516 | bol = memmem(begin, end ? end - begin : strlen(begin), | |
517 | needle, strlen(needle)); | |
518 | if (!bol) | |
57a8be2c | 519 | return NULL; |
f2dc849e JS |
520 | bol += strlen(needle); |
521 | eol = strchrnul(bol, '\n'); | |
522 | *eol = '\0'; | |
523 | return bol; | |
524 | } | |
525 | ||
65c756ff | 526 | static char *anonymize_ref_component(void) |
a8722750 JK |
527 | { |
528 | static int counter; | |
529 | struct strbuf out = STRBUF_INIT; | |
530 | strbuf_addf(&out, "ref%d", counter++); | |
7f407594 | 531 | return strbuf_detach(&out, NULL); |
a8722750 JK |
532 | } |
533 | ||
534 | static const char *anonymize_refname(const char *refname) | |
535 | { | |
536 | /* | |
537 | * If any of these prefixes is found, we will leave it intact | |
538 | * so that tags remain tags and so forth. | |
539 | */ | |
540 | static const char *prefixes[] = { | |
541 | "refs/heads/", | |
542 | "refs/tags/", | |
543 | "refs/remotes/", | |
544 | "refs/" | |
545 | }; | |
546 | static struct hashmap refs; | |
547 | static struct strbuf anon = STRBUF_INIT; | |
548 | int i; | |
549 | ||
a8722750 JK |
550 | strbuf_reset(&anon); |
551 | for (i = 0; i < ARRAY_SIZE(prefixes); i++) { | |
552 | if (skip_prefix(refname, prefixes[i], &refname)) { | |
553 | strbuf_addstr(&anon, prefixes[i]); | |
554 | break; | |
555 | } | |
556 | } | |
557 | ||
558 | anonymize_path(&anon, refname, &refs, anonymize_ref_component); | |
559 | return anon.buf; | |
560 | } | |
561 | ||
562 | /* | |
563 | * We do not even bother to cache commit messages, as they are unlikely | |
564 | * to be repeated verbatim, and it is not that interesting when they are. | |
565 | */ | |
d051f171 | 566 | static char *anonymize_commit_message(void) |
a8722750 JK |
567 | { |
568 | static int counter; | |
569 | return xstrfmt("subject %d\n\nbody\n", counter++); | |
570 | } | |
571 | ||
65c756ff | 572 | static char *anonymize_ident(void) |
a8722750 JK |
573 | { |
574 | static int counter; | |
575 | struct strbuf out = STRBUF_INIT; | |
576 | strbuf_addf(&out, "User %d <user%d@example.com>", counter, counter); | |
577 | counter++; | |
7f407594 | 578 | return strbuf_detach(&out, NULL); |
a8722750 JK |
579 | } |
580 | ||
581 | /* | |
582 | * Our strategy here is to anonymize the names and email addresses, | |
583 | * but keep timestamps intact, as they influence things like traversal | |
584 | * order (and by themselves should not be too revealing). | |
585 | */ | |
586 | static void anonymize_ident_line(const char **beg, const char **end) | |
587 | { | |
6416a865 | 588 | static struct hashmap idents; |
a8722750 JK |
589 | static struct strbuf buffers[] = { STRBUF_INIT, STRBUF_INIT }; |
590 | static unsigned which_buffer; | |
591 | ||
592 | struct strbuf *out; | |
593 | struct ident_split split; | |
594 | const char *end_of_header; | |
595 | ||
596 | out = &buffers[which_buffer++]; | |
597 | which_buffer %= ARRAY_SIZE(buffers); | |
598 | strbuf_reset(out); | |
599 | ||
600 | /* skip "committer", "author", "tagger", etc */ | |
601 | end_of_header = strchr(*beg, ' '); | |
602 | if (!end_of_header) | |
033abf97 | 603 | BUG("malformed line fed to anonymize_ident_line: %.*s", |
a8722750 JK |
604 | (int)(*end - *beg), *beg); |
605 | end_of_header++; | |
606 | strbuf_add(out, *beg, end_of_header - *beg); | |
607 | ||
608 | if (!split_ident_line(&split, end_of_header, *end - end_of_header) && | |
609 | split.date_begin) { | |
610 | const char *ident; | |
611 | size_t len; | |
612 | ||
613 | len = split.mail_end - split.name_begin; | |
7f407594 | 614 | ident = anonymize_str(&idents, anonymize_ident, |
65c756ff | 615 | split.name_begin, len); |
7f407594 | 616 | strbuf_addstr(out, ident); |
a8722750 JK |
617 | strbuf_addch(out, ' '); |
618 | strbuf_add(out, split.date_begin, split.tz_end - split.date_begin); | |
619 | } else { | |
620 | strbuf_addstr(out, "Malformed Ident <malformed@example.com> 0 -0000"); | |
621 | } | |
622 | ||
623 | *beg = out->buf; | |
624 | *end = out->buf + out->len; | |
625 | } | |
626 | ||
b3e8ca89 JT |
627 | static void handle_commit(struct commit *commit, struct rev_info *rev, |
628 | struct string_list *paths_of_changed_objects) | |
f2dc849e JS |
629 | { |
630 | int saved_output_format = rev->diffopt.output_format; | |
bc6b8fc1 | 631 | const char *commit_buffer; |
f2dc849e JS |
632 | const char *author, *author_end, *committer, *committer_end; |
633 | const char *encoding, *message; | |
634 | char *reencoded = NULL; | |
635 | struct commit_list *p; | |
a8722750 | 636 | const char *refname; |
f2dc849e JS |
637 | int i; |
638 | ||
639 | rev->diffopt.output_format = DIFF_FORMAT_CALLBACK; | |
640 | ||
683ff884 | 641 | parse_commit_or_die(commit); |
ecb5091f | 642 | commit_buffer = repo_get_commit_buffer(the_repository, commit, NULL); |
bc6b8fc1 | 643 | author = strstr(commit_buffer, "\nauthor "); |
f2dc849e | 644 | if (!author) |
1a07e59c NTND |
645 | die("could not find author in commit %s", |
646 | oid_to_hex(&commit->object.oid)); | |
f2dc849e JS |
647 | author++; |
648 | author_end = strchrnul(author, '\n'); | |
649 | committer = strstr(author_end, "\ncommitter "); | |
650 | if (!committer) | |
1a07e59c NTND |
651 | die("could not find committer in commit %s", |
652 | oid_to_hex(&commit->object.oid)); | |
f2dc849e JS |
653 | committer++; |
654 | committer_end = strchrnul(committer, '\n'); | |
655 | message = strstr(committer_end, "\n\n"); | |
656 | encoding = find_encoding(committer_end, message); | |
657 | if (message) | |
658 | message += 2; | |
659 | ||
ebeec7db | 660 | if (commit->parents && |
530ca19c EN |
661 | (get_object_mark(&commit->parents->item->object) != 0 || |
662 | reference_excluded_commits) && | |
4087a02e | 663 | !full_tree) { |
683ff884 | 664 | parse_commit_or_die(commit->parents->item); |
2e27bd77 DS |
665 | diff_tree_oid(get_commit_tree_oid(commit->parents->item), |
666 | get_commit_tree_oid(commit), "", &rev->diffopt); | |
f2dc849e JS |
667 | } |
668 | else | |
2e27bd77 | 669 | diff_root_tree_oid(get_commit_tree_oid(commit), |
7b8dea0c | 670 | "", &rev->diffopt); |
f2dc849e | 671 | |
03db4525 | 672 | /* Export the referenced blobs, and remember the marks. */ |
f2dc849e | 673 | for (i = 0; i < diff_queued_diff.nr; i++) |
03db4525 | 674 | if (!S_ISGITLINK(diff_queued_diff.queue[i]->two->mode)) |
273f8ee8 | 675 | export_blob(&diff_queued_diff.queue[i]->two->oid); |
f2dc849e | 676 | |
87be2523 | 677 | refname = *revision_sources_at(&revision_sources, commit); |
fdf31b63 EN |
678 | /* |
679 | * FIXME: string_list_remove() below for each ref is overall | |
680 | * O(N^2). Compared to a history walk and diffing trees, this is | |
681 | * just lost in the noise in practice. However, theoretically a | |
682 | * repo may have enough refs for this to become slow. | |
683 | */ | |
684 | string_list_remove(&extra_refs, refname, 0); | |
a8722750 JK |
685 | if (anonymize) { |
686 | refname = anonymize_refname(refname); | |
687 | anonymize_ident_line(&committer, &committer_end); | |
688 | anonymize_ident_line(&author, &author_end); | |
689 | } | |
690 | ||
df6a7ff7 | 691 | mark_next_object(&commit->object); |
e80001f8 | 692 | if (anonymize) { |
d051f171 | 693 | reencoded = anonymize_commit_message(); |
e80001f8 EN |
694 | } else if (encoding) { |
695 | switch(reencode_mode) { | |
696 | case REENCODE_YES: | |
697 | reencoded = reencode_string(message, "UTF-8", encoding); | |
698 | break; | |
699 | case REENCODE_NO: | |
700 | break; | |
701 | case REENCODE_ABORT: | |
702 | die("Encountered commit-specific encoding %s in commit " | |
703 | "%s; use --reencode=[yes|no] to handle it", | |
704 | encoding, oid_to_hex(&commit->object.oid)); | |
705 | } | |
706 | } | |
d8933f01 | 707 | if (!commit->parents) |
a8722750 | 708 | printf("reset %s\n", refname); |
a965bb31 EN |
709 | printf("commit %s\nmark :%"PRIu32"\n", refname, last_idnum); |
710 | if (show_original_ids) | |
711 | printf("original-oid %s\n", oid_to_hex(&commit->object.oid)); | |
ccbfc96d | 712 | printf("%.*s\n%.*s\n", |
f2dc849e | 713 | (int)(author_end - author), author, |
ccbfc96d EN |
714 | (int)(committer_end - committer), committer); |
715 | if (!reencoded && encoding) | |
716 | printf("encoding %s\n", encoding); | |
717 | printf("data %u\n%s", | |
f2dc849e JS |
718 | (unsigned)(reencoded |
719 | ? strlen(reencoded) : message | |
720 | ? strlen(message) : 0), | |
721 | reencoded ? reencoded : message ? message : ""); | |
8e0f7003 | 722 | free(reencoded); |
ecb5091f | 723 | repo_unuse_commit_buffer(the_repository, commit, commit_buffer); |
f2dc849e JS |
724 | |
725 | for (i = 0, p = commit->parents; p; p = p->next) { | |
530ca19c EN |
726 | struct object *obj = &p->item->object; |
727 | int mark = get_object_mark(obj); | |
728 | ||
729 | if (!mark && !reference_excluded_commits) | |
f2dc849e JS |
730 | continue; |
731 | if (i == 0) | |
530ca19c EN |
732 | printf("from "); |
733 | else | |
734 | printf("merge "); | |
735 | if (mark) | |
736 | printf(":%d\n", mark); | |
f2dc849e | 737 | else |
750bb325 JK |
738 | printf("%s\n", |
739 | anonymize ? | |
740 | anonymize_oid(oid_to_hex(&obj->oid)) : | |
741 | oid_to_hex(&obj->oid)); | |
f2dc849e JS |
742 | i++; |
743 | } | |
f2dc849e | 744 | |
4087a02e EN |
745 | if (full_tree) |
746 | printf("deleteall\n"); | |
f2dc849e | 747 | log_tree_diff_flush(rev); |
b3e8ca89 | 748 | string_list_clear(paths_of_changed_objects, 0); |
f2dc849e JS |
749 | rev->diffopt.output_format = saved_output_format; |
750 | ||
751 | printf("\n"); | |
752 | ||
753 | show_progress(); | |
754 | } | |
755 | ||
65c756ff | 756 | static char *anonymize_tag(void) |
a8722750 JK |
757 | { |
758 | static int counter; | |
759 | struct strbuf out = STRBUF_INIT; | |
760 | strbuf_addf(&out, "tag message %d", counter++); | |
7f407594 | 761 | return strbuf_detach(&out, NULL); |
a8722750 JK |
762 | } |
763 | ||
f2dc849e JS |
764 | |
765 | static void handle_tag(const char *name, struct tag *tag) | |
766 | { | |
767 | unsigned long size; | |
768 | enum object_type type; | |
769 | char *buf; | |
770 | const char *tagger, *tagger_end, *message; | |
771 | size_t message_size = 0; | |
02c48cd6 | 772 | struct object *tagged; |
2d8ad469 EN |
773 | int tagged_mark; |
774 | struct commit *p; | |
02c48cd6 | 775 | |
98e023de | 776 | /* Trees have no identifier in fast-export output, thus we have no way |
02c48cd6 EN |
777 | * to output tags of trees, tags of tags of trees, etc. Simply omit |
778 | * such tags. | |
779 | */ | |
780 | tagged = tag->tagged; | |
781 | while (tagged->type == OBJ_TAG) { | |
782 | tagged = ((struct tag *)tagged)->tagged; | |
783 | } | |
784 | if (tagged->type == OBJ_TREE) { | |
785 | warning("Omitting tag %s,\nsince tags of trees (or tags of tags of trees, etc.) are not supported.", | |
f2fd0760 | 786 | oid_to_hex(&tag->object.oid)); |
02c48cd6 EN |
787 | return; |
788 | } | |
f2dc849e | 789 | |
bc726bd0 ÆAB |
790 | buf = repo_read_object_file(the_repository, &tag->object.oid, &type, |
791 | &size); | |
f2dc849e | 792 | if (!buf) |
1a07e59c | 793 | die("could not read tag %s", oid_to_hex(&tag->object.oid)); |
f2dc849e JS |
794 | message = memmem(buf, size, "\n\n", 2); |
795 | if (message) { | |
796 | message += 2; | |
797 | message_size = strlen(message); | |
798 | } | |
799 | tagger = memmem(buf, message ? message - buf : size, "\ntagger ", 8); | |
4e46a8d6 JS |
800 | if (!tagger) { |
801 | if (fake_missing_tagger) | |
802 | tagger = "tagger Unspecified Tagger " | |
803 | "<unspecified-tagger> 0 +0000"; | |
804 | else | |
805 | tagger = ""; | |
806 | tagger_end = tagger + strlen(tagger); | |
807 | } else { | |
808 | tagger++; | |
809 | tagger_end = strchrnul(tagger, '\n'); | |
a8722750 JK |
810 | if (anonymize) |
811 | anonymize_ident_line(&tagger, &tagger_end); | |
812 | } | |
813 | ||
814 | if (anonymize) { | |
815 | name = anonymize_refname(name); | |
816 | if (message) { | |
817 | static struct hashmap tags; | |
7f407594 | 818 | message = anonymize_str(&tags, anonymize_tag, |
65c756ff | 819 | message, message_size); |
2f040a96 | 820 | message_size = strlen(message); |
a8722750 | 821 | } |
4e46a8d6 | 822 | } |
f2dc849e JS |
823 | |
824 | /* handle signed tags */ | |
825 | if (message) { | |
826 | const char *signature = strstr(message, | |
827 | "\n-----BEGIN PGP SIGNATURE-----\n"); | |
828 | if (signature) | |
829 | switch(signed_tag_mode) { | |
b93b81e7 | 830 | case SIGNED_TAG_ABORT: |
1a07e59c NTND |
831 | die("encountered signed tag %s; use " |
832 | "--signed-tags=<mode> to handle it", | |
833 | oid_to_hex(&tag->object.oid)); | |
f2dc849e | 834 | case WARN: |
1a07e59c NTND |
835 | warning("exporting signed tag %s", |
836 | oid_to_hex(&tag->object.oid)); | |
f2dc849e | 837 | /* fallthru */ |
ee4bc371 | 838 | case VERBATIM: |
f2dc849e | 839 | break; |
cd16c59b | 840 | case WARN_STRIP: |
1a07e59c NTND |
841 | warning("stripping signature from tag %s", |
842 | oid_to_hex(&tag->object.oid)); | |
cd16c59b | 843 | /* fallthru */ |
f2dc849e JS |
844 | case STRIP: |
845 | message_size = signature + 1 - message; | |
846 | break; | |
847 | } | |
848 | } | |
849 | ||
2d8ad469 EN |
850 | /* handle tag->tagged having been filtered out due to paths specified */ |
851 | tagged = tag->tagged; | |
852 | tagged_mark = get_object_mark(tagged); | |
853 | if (!tagged_mark) { | |
854 | switch(tag_of_filtered_mode) { | |
b93b81e7 | 855 | case TAG_FILTERING_ABORT: |
1a07e59c NTND |
856 | die("tag %s tags unexported object; use " |
857 | "--tag-of-filtered-object=<mode> to handle it", | |
858 | oid_to_hex(&tag->object.oid)); | |
2d8ad469 EN |
859 | case DROP: |
860 | /* Ignore this tag altogether */ | |
1efb1e9a | 861 | free(buf); |
2d8ad469 EN |
862 | return; |
863 | case REWRITE: | |
941790d7 EN |
864 | if (tagged->type == OBJ_TAG && !mark_tags) { |
865 | die(_("Error: Cannot export nested tags unless --mark-tags is specified.")); | |
866 | } else if (tagged->type == OBJ_COMMIT) { | |
867 | p = rewrite_commit((struct commit *)tagged); | |
868 | if (!p) { | |
869 | printf("reset %s\nfrom %s\n\n", | |
14228447 | 870 | name, oid_to_hex(null_oid())); |
941790d7 EN |
871 | free(buf); |
872 | return; | |
873 | } | |
874 | tagged_mark = get_object_mark(&p->object); | |
875 | } else { | |
876 | /* tagged->type is either OBJ_BLOB or OBJ_TAG */ | |
877 | tagged_mark = get_object_mark(tagged); | |
2d8ad469 | 878 | } |
2d8ad469 EN |
879 | } |
880 | } | |
881 | ||
941790d7 EN |
882 | if (tagged->type == OBJ_TAG) { |
883 | printf("reset %s\nfrom %s\n\n", | |
14228447 | 884 | name, oid_to_hex(null_oid())); |
941790d7 | 885 | } |
145136a9 | 886 | skip_prefix(name, "refs/tags/", &name); |
af2abd87 | 887 | printf("tag %s\n", name); |
a1638cfe EN |
888 | if (mark_tags) { |
889 | mark_next_object(&tag->object); | |
890 | printf("mark :%"PRIu32"\n", last_idnum); | |
891 | } | |
af2abd87 EN |
892 | if (tagged_mark) |
893 | printf("from :%d\n", tagged_mark); | |
894 | else | |
895 | printf("from %s\n", oid_to_hex(&tagged->oid)); | |
896 | ||
a965bb31 EN |
897 | if (show_original_ids) |
898 | printf("original-oid %s\n", oid_to_hex(&tag->object.oid)); | |
899 | printf("%.*s%sdata %d\n%.*s\n", | |
f2dc849e | 900 | (int)(tagger_end - tagger), tagger, |
4e46a8d6 | 901 | tagger == tagger_end ? "" : "\n", |
f2dc849e | 902 | (int)message_size, (int)message_size, message ? message : ""); |
1efb1e9a | 903 | free(buf); |
f2dc849e JS |
904 | } |
905 | ||
3e9b9cb1 FC |
906 | static struct commit *get_commit(struct rev_cmdline_entry *e, char *full_name) |
907 | { | |
908 | switch (e->item->type) { | |
909 | case OBJ_COMMIT: | |
910 | return (struct commit *)e->item; | |
911 | case OBJ_TAG: { | |
912 | struct tag *tag = (struct tag *)e->item; | |
913 | ||
914 | /* handle nested tags */ | |
915 | while (tag && tag->object.type == OBJ_TAG) { | |
109cd76d | 916 | parse_object(the_repository, &tag->object.oid); |
fdf31b63 | 917 | string_list_append(&tag_refs, full_name)->util = tag; |
3e9b9cb1 FC |
918 | tag = (struct tag *)tag->tagged; |
919 | } | |
920 | if (!tag) | |
921 | die("Tag %s points nowhere?", e->name); | |
922 | return (struct commit *)tag; | |
3e9b9cb1 FC |
923 | } |
924 | default: | |
925 | return NULL; | |
926 | } | |
927 | } | |
928 | ||
1d844ee7 | 929 | static void get_tags_and_duplicates(struct rev_cmdline_info *info) |
f2dc849e | 930 | { |
f2dc849e JS |
931 | int i; |
932 | ||
49266e8a FC |
933 | for (i = 0; i < info->nr; i++) { |
934 | struct rev_cmdline_entry *e = info->rev + i; | |
273f8ee8 | 935 | struct object_id oid; |
2d242de4 | 936 | struct commit *commit; |
f2dc849e JS |
937 | char *full_name; |
938 | ||
49266e8a FC |
939 | if (e->flags & UNINTERESTING) |
940 | continue; | |
941 | ||
12cb1c10 ÆAB |
942 | if (repo_dwim_ref(the_repository, e->name, strlen(e->name), |
943 | &oid, &full_name, 0) != 1) | |
f2dc849e JS |
944 | continue; |
945 | ||
16eefc8e | 946 | if (refspecs.nr) { |
03e9010c | 947 | char *private; |
d000414e | 948 | private = apply_refspecs(&refspecs, full_name); |
03e9010c FC |
949 | if (private) { |
950 | free(full_name); | |
951 | full_name = private; | |
952 | } | |
953 | } | |
954 | ||
3e9b9cb1 FC |
955 | commit = get_commit(e, full_name); |
956 | if (!commit) { | |
2d07f6d4 EFL |
957 | warning("%s: Unexpected object of type %s, skipping.", |
958 | e->name, | |
debca9d2 | 959 | type_name(e->item->type)); |
2d07f6d4 | 960 | continue; |
f2dc849e | 961 | } |
f28e7c90 | 962 | |
3e9b9cb1 FC |
963 | switch(commit->object.type) { |
964 | case OBJ_COMMIT: | |
965 | break; | |
966 | case OBJ_BLOB: | |
273f8ee8 | 967 | export_blob(&commit->object.oid); |
3e9b9cb1 FC |
968 | continue; |
969 | default: /* OBJ_TAG (nested tags) is already handled */ | |
970 | warning("Tag points to object of unexpected type %s, skipping.", | |
debca9d2 | 971 | type_name(commit->object.type)); |
3e9b9cb1 FC |
972 | continue; |
973 | } | |
974 | ||
f28e7c90 | 975 | /* |
fdf31b63 EN |
976 | * Make sure this ref gets properly updated eventually, whether |
977 | * through a commit or manually at the end. | |
f28e7c90 | 978 | */ |
fdf31b63 | 979 | if (e->item->type != OBJ_TAG) |
1d844ee7 | 980 | string_list_append(&extra_refs, full_name)->util = commit; |
fdf31b63 | 981 | |
87be2523 NTND |
982 | if (!*revision_sources_at(&revision_sources, commit)) |
983 | *revision_sources_at(&revision_sources, commit) = full_name; | |
f2dc849e | 984 | } |
fdf31b63 EN |
985 | |
986 | string_list_sort(&extra_refs); | |
987 | string_list_remove_duplicates(&extra_refs, 0); | |
f2dc849e JS |
988 | } |
989 | ||
fdf31b63 | 990 | static void handle_tags_and_duplicates(struct string_list *extras) |
f2dc849e JS |
991 | { |
992 | struct commit *commit; | |
993 | int i; | |
994 | ||
fdf31b63 EN |
995 | for (i = extras->nr - 1; i >= 0; i--) { |
996 | const char *name = extras->items[i].string; | |
997 | struct object *object = extras->items[i].util; | |
998 | int mark; | |
999 | ||
f2dc849e JS |
1000 | switch (object->type) { |
1001 | case OBJ_TAG: | |
1002 | handle_tag(name, (struct tag *)object); | |
1003 | break; | |
1004 | case OBJ_COMMIT: | |
a8722750 JK |
1005 | if (anonymize) |
1006 | name = anonymize_refname(name); | |
f2dc849e | 1007 | /* create refs pointing to already seen commits */ |
cd13762d EN |
1008 | commit = rewrite_commit((struct commit *)object); |
1009 | if (!commit) { | |
1010 | /* | |
1011 | * Neither this object nor any of its | |
1012 | * ancestors touch any relevant paths, so | |
1013 | * it has been filtered to nothing. Delete | |
1014 | * it. | |
1015 | */ | |
1016 | printf("reset %s\nfrom %s\n\n", | |
14228447 | 1017 | name, oid_to_hex(null_oid())); |
cd13762d EN |
1018 | continue; |
1019 | } | |
fdf31b63 EN |
1020 | |
1021 | mark = get_object_mark(&commit->object); | |
1022 | if (!mark) { | |
1023 | /* | |
1024 | * Getting here means we have a commit which | |
1025 | * was excluded by a negative refspec (e.g. | |
5a0c32bd | 1026 | * fast-export ^HEAD HEAD). If we are |
530ca19c EN |
1027 | * referencing excluded commits, set the ref |
1028 | * to the exact commit. Otherwise, the user | |
fdf31b63 | 1029 | * wants the branch exported but every commit |
530ca19c EN |
1030 | * in its history to be deleted, which basically |
1031 | * just means deletion of the ref. | |
fdf31b63 | 1032 | */ |
530ca19c EN |
1033 | if (!reference_excluded_commits) { |
1034 | /* delete the ref */ | |
1035 | printf("reset %s\nfrom %s\n\n", | |
14228447 | 1036 | name, oid_to_hex(null_oid())); |
530ca19c EN |
1037 | continue; |
1038 | } | |
1039 | /* set ref to commit using oid, not mark */ | |
1040 | printf("reset %s\nfrom %s\n\n", name, | |
1041 | oid_to_hex(&commit->object.oid)); | |
fdf31b63 EN |
1042 | continue; |
1043 | } | |
1044 | ||
1045 | printf("reset %s\nfrom :%d\n\n", name, mark | |
1046 | ); | |
f2dc849e JS |
1047 | show_progress(); |
1048 | break; | |
1049 | } | |
1050 | } | |
1051 | } | |
1052 | ||
df6a7ff7 PB |
1053 | static void export_marks(char *file) |
1054 | { | |
1055 | unsigned int i; | |
1056 | uint32_t mark; | |
ddd3e312 | 1057 | struct decoration_entry *deco = idnums.entries; |
df6a7ff7 | 1058 | FILE *f; |
96d69b55 | 1059 | int e = 0; |
df6a7ff7 | 1060 | |
ea56518d | 1061 | f = fopen_for_writing(file); |
df6a7ff7 | 1062 | if (!f) |
bb6ad28c | 1063 | die_errno("Unable to open marks file %s for writing.", file); |
df6a7ff7 | 1064 | |
69913575 JH |
1065 | for (i = 0; i < idnums.size; i++) { |
1066 | if (deco->base && deco->base->type == 1) { | |
df6a7ff7 | 1067 | mark = ptr_to_mark(deco->decoration); |
96d69b55 | 1068 | if (fprintf(f, ":%"PRIu32" %s\n", mark, |
f2fd0760 | 1069 | oid_to_hex(&deco->base->oid)) < 0) { |
96d69b55 MA |
1070 | e = 1; |
1071 | break; | |
1072 | } | |
df6a7ff7 | 1073 | } |
69913575 | 1074 | deco++; |
df6a7ff7 PB |
1075 | } |
1076 | ||
96d69b55 MA |
1077 | e |= ferror(f); |
1078 | e |= fclose(f); | |
1079 | if (e) | |
df6a7ff7 PB |
1080 | error("Unable to write marks file %s.", file); |
1081 | } | |
1082 | ||
208d6924 | 1083 | static void import_marks(char *input_file, int check_exists) |
df6a7ff7 PB |
1084 | { |
1085 | char line[512]; | |
208d6924 EN |
1086 | FILE *f; |
1087 | struct stat sb; | |
1088 | ||
1089 | if (check_exists && stat(input_file, &sb)) | |
1090 | return; | |
df6a7ff7 | 1091 | |
208d6924 | 1092 | f = xfopen(input_file, "r"); |
df6a7ff7 PB |
1093 | while (fgets(line, sizeof(line), f)) { |
1094 | uint32_t mark; | |
1095 | char *line_end, *mark_end; | |
273f8ee8 | 1096 | struct object_id oid; |
df6a7ff7 | 1097 | struct object *object; |
47bd9bf8 | 1098 | struct commit *commit; |
e6812cfa | 1099 | enum object_type type; |
df6a7ff7 PB |
1100 | |
1101 | line_end = strchr(line, '\n'); | |
1102 | if (line[0] != ':' || !line_end) | |
1103 | die("corrupt mark line: %s", line); | |
69913575 | 1104 | *line_end = '\0'; |
df6a7ff7 PB |
1105 | |
1106 | mark = strtoumax(line + 1, &mark_end, 10); | |
1107 | if (!mark || mark_end == line + 1 | |
273f8ee8 | 1108 | || *mark_end != ' ' || get_oid_hex(mark_end + 1, &oid)) |
df6a7ff7 PB |
1109 | die("corrupt mark line: %s", line); |
1110 | ||
c4458ecd AP |
1111 | if (last_idnum < mark) |
1112 | last_idnum = mark; | |
1113 | ||
0df8e965 | 1114 | type = oid_object_info(the_repository, &oid, NULL); |
e6812cfa | 1115 | if (type < 0) |
273f8ee8 | 1116 | die("object not found: %s", oid_to_hex(&oid)); |
e6812cfa FC |
1117 | |
1118 | if (type != OBJ_COMMIT) | |
1119 | /* only commits */ | |
c4458ecd | 1120 | continue; |
df6a7ff7 | 1121 | |
c1f5eb49 | 1122 | commit = lookup_commit(the_repository, &oid); |
47bd9bf8 | 1123 | if (!commit) |
273f8ee8 | 1124 | die("not a commit? can't happen: %s", oid_to_hex(&oid)); |
47bd9bf8 FC |
1125 | |
1126 | object = &commit->object; | |
e6812cfa | 1127 | |
df6a7ff7 | 1128 | if (object->flags & SHOWN) |
273f8ee8 | 1129 | error("Object %s already has a mark", oid_to_hex(&oid)); |
df6a7ff7 PB |
1130 | |
1131 | mark_object(object, mark); | |
df6a7ff7 PB |
1132 | |
1133 | object->flags |= SHOWN; | |
1134 | } | |
1135 | fclose(f); | |
1136 | } | |
1137 | ||
60ed2643 FC |
1138 | static void handle_deletes(void) |
1139 | { | |
1140 | int i; | |
16eefc8e BW |
1141 | for (i = 0; i < refspecs.nr; i++) { |
1142 | struct refspec_item *refspec = &refspecs.items[i]; | |
60ed2643 FC |
1143 | if (*refspec->src) |
1144 | continue; | |
1145 | ||
1146 | printf("reset %s\nfrom %s\n\n", | |
14228447 | 1147 | refspec->dst, oid_to_hex(null_oid())); |
60ed2643 FC |
1148 | } |
1149 | } | |
1150 | ||
65b5d9fa JK |
1151 | static int parse_opt_anonymize_map(const struct option *opt, |
1152 | const char *arg, int unset) | |
1153 | { | |
1154 | struct hashmap *map = opt->value; | |
1155 | const char *delim, *value; | |
1156 | size_t keylen; | |
1157 | ||
1158 | BUG_ON_OPT_NEG(unset); | |
1159 | ||
1160 | delim = strchr(arg, ':'); | |
1161 | if (delim) { | |
1162 | keylen = delim - arg; | |
1163 | value = delim + 1; | |
1164 | } else { | |
1165 | keylen = strlen(arg); | |
1166 | value = arg; | |
1167 | } | |
1168 | ||
1169 | if (!keylen || !*value) | |
1170 | return error(_("--anonymize-map token cannot be empty")); | |
1171 | ||
aa548459 JK |
1172 | add_anonymized_entry(map, memhash(arg, keylen), arg, keylen, |
1173 | xstrdup(value)); | |
65b5d9fa JK |
1174 | |
1175 | return 0; | |
1176 | } | |
1177 | ||
f2dc849e JS |
1178 | int cmd_fast_export(int argc, const char **argv, const char *prefix) |
1179 | { | |
1180 | struct rev_info revs; | |
f2dc849e | 1181 | struct commit *commit; |
208d6924 EN |
1182 | char *export_filename = NULL, |
1183 | *import_filename = NULL, | |
1184 | *import_filename_if_exists = NULL; | |
c4458ecd | 1185 | uint32_t lastimportid; |
03e9010c | 1186 | struct string_list refspecs_list = STRING_LIST_INIT_NODUP; |
b3e8ca89 | 1187 | struct string_list paths_of_changed_objects = STRING_LIST_INIT_DUP; |
f2dc849e JS |
1188 | struct option options[] = { |
1189 | OPT_INTEGER(0, "progress", &progress, | |
3b787b96 NTND |
1190 | N_("show progress after <n> objects")), |
1191 | OPT_CALLBACK(0, "signed-tags", &signed_tag_mode, N_("mode"), | |
1192 | N_("select handling of signed tags"), | |
f2dc849e | 1193 | parse_opt_signed_tag_mode), |
3b787b96 NTND |
1194 | OPT_CALLBACK(0, "tag-of-filtered-object", &tag_of_filtered_mode, N_("mode"), |
1195 | N_("select handling of tags that tag filtered objects"), | |
2d8ad469 | 1196 | parse_opt_tag_of_filtered_mode), |
e80001f8 EN |
1197 | OPT_CALLBACK(0, "reencode", &reencode_mode, N_("mode"), |
1198 | N_("select handling of commit messages in an alternate encoding"), | |
1199 | parse_opt_reencode_mode), | |
3b787b96 | 1200 | OPT_STRING(0, "export-marks", &export_filename, N_("file"), |
e73fe3dd | 1201 | N_("dump marks to this file")), |
3b787b96 | 1202 | OPT_STRING(0, "import-marks", &import_filename, N_("file"), |
e73fe3dd | 1203 | N_("import marks from this file")), |
208d6924 EN |
1204 | OPT_STRING(0, "import-marks-if-exists", |
1205 | &import_filename_if_exists, | |
1206 | N_("file"), | |
e73fe3dd | 1207 | N_("import marks from this file if it exists")), |
d5d09d47 | 1208 | OPT_BOOL(0, "fake-missing-tagger", &fake_missing_tagger, |
e73fe3dd | 1209 | N_("fake a tagger when tags lack one")), |
d5d09d47 | 1210 | OPT_BOOL(0, "full-tree", &full_tree, |
e73fe3dd | 1211 | N_("output full tree for each commit")), |
d5d09d47 | 1212 | OPT_BOOL(0, "use-done-feature", &use_done_feature, |
e73fe3dd ZH |
1213 | N_("use the done feature to terminate the stream")), |
1214 | OPT_BOOL(0, "no-data", &no_data, N_("skip output of blob data")), | |
03e9010c | 1215 | OPT_STRING_LIST(0, "refspec", &refspecs_list, N_("refspec"), |
e73fe3dd | 1216 | N_("apply refspec to exported refs")), |
a8722750 | 1217 | OPT_BOOL(0, "anonymize", &anonymize, N_("anonymize output")), |
65b5d9fa JK |
1218 | OPT_CALLBACK_F(0, "anonymize-map", &anonymized_seeds, N_("from:to"), |
1219 | N_("convert <from> to <to> in anonymized output"), | |
1220 | PARSE_OPT_NONEG, parse_opt_anonymize_map), | |
530ca19c | 1221 | OPT_BOOL(0, "reference-excluded-parents", |
e73fe3dd | 1222 | &reference_excluded_commits, N_("reference parents which are not in fast-export stream by object id")), |
a965bb31 | 1223 | OPT_BOOL(0, "show-original-ids", &show_original_ids, |
e73fe3dd | 1224 | N_("show original object ids of blobs/commits")), |
a1638cfe | 1225 | OPT_BOOL(0, "mark-tags", &mark_tags, |
e73fe3dd | 1226 | N_("label tags with mark ids")), |
530ca19c | 1227 | |
f2dc849e JS |
1228 | OPT_END() |
1229 | }; | |
1230 | ||
dcfdbdf0 MV |
1231 | if (argc == 1) |
1232 | usage_with_options (fast_export_usage, options); | |
1233 | ||
f2dc849e | 1234 | /* we handle encodings */ |
ef90d6d4 | 1235 | git_config(git_default_config, NULL); |
f2dc849e | 1236 | |
2abf3503 | 1237 | repo_init_revisions(the_repository, &revs, prefix); |
87be2523 | 1238 | init_revision_sources(&revision_sources); |
668f3aa7 | 1239 | revs.topo_order = 1; |
87be2523 | 1240 | revs.sources = &revision_sources; |
32164131 | 1241 | revs.rewrite_parents = 1; |
8b2f86a7 | 1242 | argc = parse_options(argc, argv, prefix, options, fast_export_usage, |
99d86d60 | 1243 | PARSE_OPT_KEEP_ARGV0 | PARSE_OPT_KEEP_UNKNOWN_OPT); |
f2dc849e | 1244 | argc = setup_revisions(argc, argv, &revs, NULL); |
f2dc849e JS |
1245 | if (argc > 1) |
1246 | usage_with_options (fast_export_usage, options); | |
1247 | ||
65b5d9fa | 1248 | if (anonymized_seeds.cmpfn && !anonymize) |
6fa00ee8 | 1249 | die(_("the option '%s' requires '%s'"), "--anonymize-map", "--anonymize"); |
65b5d9fa | 1250 | |
03e9010c | 1251 | if (refspecs_list.nr) { |
03e9010c FC |
1252 | int i; |
1253 | ||
03e9010c | 1254 | for (i = 0; i < refspecs_list.nr; i++) |
16eefc8e | 1255 | refspec_append(&refspecs, refspecs_list.items[i].string); |
03e9010c FC |
1256 | |
1257 | string_list_clear(&refspecs_list, 1); | |
03e9010c FC |
1258 | } |
1259 | ||
82670a5c SR |
1260 | if (use_done_feature) |
1261 | printf("feature done\n"); | |
1262 | ||
208d6924 | 1263 | if (import_filename && import_filename_if_exists) |
12909b6b | 1264 | die(_("options '%s' and '%s' cannot be used together"), "--import-marks", "--import-marks-if-exists"); |
df6a7ff7 | 1265 | if (import_filename) |
208d6924 EN |
1266 | import_marks(import_filename, 0); |
1267 | else if (import_filename_if_exists) | |
1268 | import_marks(import_filename_if_exists, 1); | |
c4458ecd | 1269 | lastimportid = last_idnum; |
df6a7ff7 | 1270 | |
afe069d1 | 1271 | if (import_filename && revs.prune_data.nr) |
4087a02e EN |
1272 | full_tree = 1; |
1273 | ||
1d844ee7 | 1274 | get_tags_and_duplicates(&revs.cmdline); |
f2dc849e | 1275 | |
3d51e1b5 MK |
1276 | if (prepare_revision_walk(&revs)) |
1277 | die("revision walk setup failed"); | |
726a228d WS |
1278 | |
1279 | revs.reverse = 1; | |
f2dc849e | 1280 | revs.diffopt.format_callback = show_filemodify; |
b3e8ca89 | 1281 | revs.diffopt.format_callback_data = &paths_of_changed_objects; |
0d1e0e78 | 1282 | revs.diffopt.flags.recursive = 1; |
d1c25272 | 1283 | revs.diffopt.no_free = 1; |
726a228d WS |
1284 | while ((commit = get_revision(&revs))) |
1285 | handle_commit(commit, &revs, &paths_of_changed_objects); | |
f2dc849e | 1286 | |
fdf31b63 EN |
1287 | handle_tags_and_duplicates(&extra_refs); |
1288 | handle_tags_and_duplicates(&tag_refs); | |
60ed2643 | 1289 | handle_deletes(); |
f2dc849e | 1290 | |
c4458ecd | 1291 | if (export_filename && lastimportid != last_idnum) |
df6a7ff7 PB |
1292 | export_marks(export_filename); |
1293 | ||
82670a5c SR |
1294 | if (use_done_feature) |
1295 | printf("done\n"); | |
1296 | ||
16eefc8e | 1297 | refspec_clear(&refspecs); |
2108fe4a | 1298 | release_revisions(&revs); |
03e9010c | 1299 | |
f2dc849e JS |
1300 | return 0; |
1301 | } |