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Commit | Line | Data |
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752c0c24 | 1 | #include "cache.h" |
69aba532 | 2 | #include "repository.h" |
b2141fc1 | 3 | #include "config.h" |
851e18c3 | 4 | #include "submodule-config.h" |
752c0c24 JS |
5 | #include "submodule.h" |
6 | #include "dir.h" | |
7 | #include "diff.h" | |
8 | #include "commit.h" | |
9 | #include "revision.h" | |
ee6fc514 | 10 | #include "run-command.h" |
c7e1a736 | 11 | #include "diffcore.h" |
68d03e4a | 12 | #include "refs.h" |
aee9c7d6 | 13 | #include "string-list.h" |
6859de45 | 14 | #include "sha1-array.h" |
c1189cae | 15 | #include "argv-array.h" |
5fee9952 | 16 | #include "blob.h" |
fe85ee6e | 17 | #include "thread-utils.h" |
4638728c | 18 | #include "quote.h" |
06bf4ad1 | 19 | #include "remote.h" |
f6f85861 | 20 | #include "worktree.h" |
046b4823 | 21 | #include "parse-options.h" |
aee9c7d6 | 22 | |
d7a3803f | 23 | static int config_update_recurse_submodules = RECURSE_SUBMODULES_OFF; |
a6bb78c3 | 24 | static struct string_list changed_submodule_paths = STRING_LIST_INIT_DUP; |
6859de45 | 25 | static int initialized_fetch_ref_tips; |
910650d2 | 26 | static struct oid_array ref_tips_before_fetch; |
27 | static struct oid_array ref_tips_after_fetch; | |
6859de45 | 28 | |
d4e98b58 JL |
29 | /* |
30 | * The following flag is set if the .gitmodules file is unmerged. We then | |
31 | * disable recursion for all submodules where .git/config doesn't have a | |
32 | * matching config entry because we can't guess what might be configured in | |
33 | * .gitmodules unless the user resolves the conflict. When a command line | |
34 | * option is given (which always overrides configuration) this flag will be | |
35 | * ignored. | |
36 | */ | |
37 | static int gitmodules_is_unmerged; | |
752c0c24 | 38 | |
5fee9952 | 39 | /* |
91b83480 BW |
40 | * Check if the .gitmodules file has unstaged modifications. This must be |
41 | * checked before allowing modifications to the .gitmodules file with the | |
42 | * intention to stage them later, because when continuing we would stage the | |
43 | * modifications the user didn't stage herself too. That might change in a | |
44 | * future version when we learn to stage the changes we do ourselves without | |
45 | * staging any previous modifications. | |
5fee9952 | 46 | */ |
91b83480 | 47 | int is_staging_gitmodules_ok(const struct index_state *istate) |
5fee9952 | 48 | { |
91b83480 BW |
49 | int pos = index_name_pos(istate, GITMODULES_FILE, strlen(GITMODULES_FILE)); |
50 | ||
51 | if ((pos >= 0) && (pos < istate->cache_nr)) { | |
52 | struct stat st; | |
53 | if (lstat(GITMODULES_FILE, &st) == 0 && | |
54 | ce_match_stat(istate->cache[pos], &st, 0) & DATA_CHANGED) | |
55 | return 0; | |
56 | } | |
57 | ||
58 | return 1; | |
5fee9952 JL |
59 | } |
60 | ||
0656781f JL |
61 | /* |
62 | * Try to update the "path" entry in the "submodule.<name>" section of the | |
63 | * .gitmodules file. Return 0 only if a .gitmodules file was found, a section | |
64 | * with the correct path=<oldpath> setting was found and we could update it. | |
65 | */ | |
66 | int update_path_in_gitmodules(const char *oldpath, const char *newpath) | |
67 | { | |
68 | struct strbuf entry = STRBUF_INIT; | |
851e18c3 | 69 | const struct submodule *submodule; |
0656781f | 70 | |
4c0eeafe | 71 | if (!file_exists(GITMODULES_FILE)) /* Do nothing without .gitmodules */ |
0656781f JL |
72 | return -1; |
73 | ||
74 | if (gitmodules_is_unmerged) | |
75 | die(_("Cannot change unmerged .gitmodules, resolve merge conflicts first")); | |
76 | ||
851e18c3 HV |
77 | submodule = submodule_from_path(null_sha1, oldpath); |
78 | if (!submodule || !submodule->name) { | |
0656781f JL |
79 | warning(_("Could not find section in .gitmodules where path=%s"), oldpath); |
80 | return -1; | |
81 | } | |
82 | strbuf_addstr(&entry, "submodule."); | |
851e18c3 | 83 | strbuf_addstr(&entry, submodule->name); |
0656781f | 84 | strbuf_addstr(&entry, ".path"); |
4c0eeafe | 85 | if (git_config_set_in_file_gently(GITMODULES_FILE, entry.buf, newpath) < 0) { |
0656781f JL |
86 | /* Maybe the user already did that, don't error out here */ |
87 | warning(_("Could not update .gitmodules entry %s"), entry.buf); | |
88 | strbuf_release(&entry); | |
89 | return -1; | |
90 | } | |
91 | strbuf_release(&entry); | |
92 | return 0; | |
93 | } | |
94 | ||
95c16418 JL |
95 | /* |
96 | * Try to remove the "submodule.<name>" section from .gitmodules where the given | |
97 | * path is configured. Return 0 only if a .gitmodules file was found, a section | |
98 | * with the correct path=<path> setting was found and we could remove it. | |
99 | */ | |
100 | int remove_path_from_gitmodules(const char *path) | |
101 | { | |
102 | struct strbuf sect = STRBUF_INIT; | |
851e18c3 | 103 | const struct submodule *submodule; |
95c16418 | 104 | |
4c0eeafe | 105 | if (!file_exists(GITMODULES_FILE)) /* Do nothing without .gitmodules */ |
95c16418 JL |
106 | return -1; |
107 | ||
108 | if (gitmodules_is_unmerged) | |
109 | die(_("Cannot change unmerged .gitmodules, resolve merge conflicts first")); | |
110 | ||
851e18c3 HV |
111 | submodule = submodule_from_path(null_sha1, path); |
112 | if (!submodule || !submodule->name) { | |
95c16418 JL |
113 | warning(_("Could not find section in .gitmodules where path=%s"), path); |
114 | return -1; | |
115 | } | |
116 | strbuf_addstr(§, "submodule."); | |
851e18c3 | 117 | strbuf_addstr(§, submodule->name); |
4c0eeafe | 118 | if (git_config_rename_section_in_file(GITMODULES_FILE, sect.buf, NULL) < 0) { |
95c16418 JL |
119 | /* Maybe the user already did that, don't error out here */ |
120 | warning(_("Could not remove .gitmodules entry for %s"), path); | |
121 | strbuf_release(§); | |
122 | return -1; | |
123 | } | |
124 | strbuf_release(§); | |
125 | return 0; | |
126 | } | |
127 | ||
5fee9952 JL |
128 | void stage_updated_gitmodules(void) |
129 | { | |
4c0eeafe | 130 | if (add_file_to_cache(GITMODULES_FILE, 0)) |
5fee9952 JL |
131 | die(_("staging updated .gitmodules failed")); |
132 | } | |
133 | ||
cb58c932 | 134 | static int add_submodule_odb(const char *path) |
752c0c24 JS |
135 | { |
136 | struct strbuf objects_directory = STRBUF_INIT; | |
de7a7960 | 137 | int ret = 0; |
752c0c24 | 138 | |
99b43a61 JK |
139 | ret = strbuf_git_path_submodule(&objects_directory, path, "objects/"); |
140 | if (ret) | |
141 | goto done; | |
de7a7960 JL |
142 | if (!is_directory(objects_directory.buf)) { |
143 | ret = -1; | |
144 | goto done; | |
145 | } | |
a5b34d21 | 146 | add_to_alternates_memory(objects_directory.buf); |
de7a7960 JL |
147 | done: |
148 | strbuf_release(&objects_directory); | |
149 | return ret; | |
752c0c24 JS |
150 | } |
151 | ||
aee9c7d6 JL |
152 | void set_diffopt_flags_from_submodule_config(struct diff_options *diffopt, |
153 | const char *path) | |
154 | { | |
851e18c3 HV |
155 | const struct submodule *submodule = submodule_from_path(null_sha1, path); |
156 | if (submodule) { | |
157 | if (submodule->ignore) | |
158 | handle_ignore_submodules_arg(diffopt, submodule->ignore); | |
d4e98b58 JL |
159 | else if (gitmodules_is_unmerged) |
160 | DIFF_OPT_SET(diffopt, IGNORE_SUBMODULES); | |
aee9c7d6 JL |
161 | } |
162 | } | |
163 | ||
1d789d08 SB |
164 | /* For loading from the .gitmodules file. */ |
165 | static int git_modules_config(const char *var, const char *value, void *cb) | |
302ad7a9 | 166 | { |
f20e7c1e | 167 | if (starts_with(var, "submodule.")) |
302ad7a9 JL |
168 | return parse_submodule_config_option(var, value); |
169 | return 0; | |
170 | } | |
171 | ||
046b4823 | 172 | /* Loads all submodule settings from the config. */ |
1d789d08 SB |
173 | int submodule_config(const char *var, const char *value, void *cb) |
174 | { | |
046b4823 SB |
175 | if (!strcmp(var, "submodule.recurse")) { |
176 | int v = git_config_bool(var, value) ? | |
177 | RECURSE_SUBMODULES_ON : RECURSE_SUBMODULES_OFF; | |
178 | config_update_recurse_submodules = v; | |
179 | return 0; | |
180 | } else { | |
181 | return git_modules_config(var, value, cb); | |
182 | } | |
183 | } | |
184 | ||
185 | /* Cheap function that only determines if we're interested in submodules at all */ | |
186 | int git_default_submodule_config(const char *var, const char *value, void *cb) | |
187 | { | |
188 | if (!strcmp(var, "submodule.recurse")) { | |
189 | int v = git_config_bool(var, value) ? | |
190 | RECURSE_SUBMODULES_ON : RECURSE_SUBMODULES_OFF; | |
191 | config_update_recurse_submodules = v; | |
192 | } | |
193 | return 0; | |
1d789d08 SB |
194 | } |
195 | ||
d7a3803f SB |
196 | int option_parse_recurse_submodules_worktree_updater(const struct option *opt, |
197 | const char *arg, int unset) | |
198 | { | |
199 | if (unset) { | |
200 | config_update_recurse_submodules = RECURSE_SUBMODULES_OFF; | |
201 | return 0; | |
202 | } | |
203 | if (arg) | |
204 | config_update_recurse_submodules = | |
205 | parse_update_recurse_submodules_arg(opt->long_name, | |
206 | arg); | |
207 | else | |
208 | config_update_recurse_submodules = RECURSE_SUBMODULES_ON; | |
209 | ||
210 | return 0; | |
211 | } | |
212 | ||
213 | void load_submodule_cache(void) | |
214 | { | |
215 | if (config_update_recurse_submodules == RECURSE_SUBMODULES_OFF) | |
216 | return; | |
217 | ||
218 | gitmodules_config(); | |
219 | git_config(submodule_config, NULL); | |
220 | } | |
221 | ||
302ad7a9 JL |
222 | void gitmodules_config(void) |
223 | { | |
224 | const char *work_tree = get_git_work_tree(); | |
225 | if (work_tree) { | |
226 | struct strbuf gitmodules_path = STRBUF_INIT; | |
d4e98b58 | 227 | int pos; |
302ad7a9 | 228 | strbuf_addstr(&gitmodules_path, work_tree); |
4c0eeafe | 229 | strbuf_addstr(&gitmodules_path, "/" GITMODULES_FILE); |
d4e98b58 JL |
230 | if (read_cache() < 0) |
231 | die("index file corrupt"); | |
4c0eeafe | 232 | pos = cache_name_pos(GITMODULES_FILE, 11); |
d4e98b58 JL |
233 | if (pos < 0) { /* .gitmodules not found or isn't merged */ |
234 | pos = -1 - pos; | |
235 | if (active_nr > pos) { /* there is a .gitmodules */ | |
236 | const struct cache_entry *ce = active_cache[pos]; | |
237 | if (ce_namelen(ce) == 11 && | |
4c0eeafe | 238 | !memcmp(ce->name, GITMODULES_FILE, 11)) |
d4e98b58 JL |
239 | gitmodules_is_unmerged = 1; |
240 | } | |
241 | } | |
242 | ||
243 | if (!gitmodules_is_unmerged) | |
1d789d08 SB |
244 | git_config_from_file(git_modules_config, |
245 | gitmodules_path.buf, NULL); | |
302ad7a9 JL |
246 | strbuf_release(&gitmodules_path); |
247 | } | |
248 | } | |
249 | ||
69aba532 BW |
250 | static int gitmodules_cb(const char *var, const char *value, void *data) |
251 | { | |
252 | struct repository *repo = data; | |
253 | return submodule_config_option(repo, var, value); | |
254 | } | |
255 | ||
256 | void repo_read_gitmodules(struct repository *repo) | |
257 | { | |
4c0eeafe | 258 | char *gitmodules_path = repo_worktree_path(repo, GITMODULES_FILE); |
69aba532 BW |
259 | |
260 | git_config_from_file(gitmodules_cb, gitmodules_path, repo); | |
261 | free(gitmodules_path); | |
262 | } | |
263 | ||
9ebf689a BW |
264 | void gitmodules_config_sha1(const unsigned char *commit_sha1) |
265 | { | |
266 | struct strbuf rev = STRBUF_INIT; | |
267 | unsigned char sha1[20]; | |
268 | ||
269 | if (gitmodule_sha1_from_commit(commit_sha1, sha1, &rev)) { | |
1d789d08 | 270 | git_config_from_blob_sha1(git_modules_config, rev.buf, |
9ebf689a BW |
271 | sha1, NULL); |
272 | } | |
273 | strbuf_release(&rev); | |
274 | } | |
275 | ||
f9f42560 BW |
276 | /* |
277 | * Determine if a submodule has been initialized at a given 'path' | |
278 | */ | |
627d9342 | 279 | int is_submodule_active(struct repository *repo, const char *path) |
f9f42560 BW |
280 | { |
281 | int ret = 0; | |
a086f921 BW |
282 | char *key = NULL; |
283 | char *value = NULL; | |
284 | const struct string_list *sl; | |
627d9342 BW |
285 | const struct submodule *module; |
286 | ||
287 | module = submodule_from_cache(repo, null_sha1, path); | |
f9f42560 | 288 | |
a086f921 BW |
289 | /* early return if there isn't a path->module mapping */ |
290 | if (!module) | |
291 | return 0; | |
f9f42560 | 292 | |
a086f921 BW |
293 | /* submodule.<name>.active is set */ |
294 | key = xstrfmt("submodule.%s.active", module->name); | |
627d9342 | 295 | if (!repo_config_get_bool(repo, key, &ret)) { |
a086f921 BW |
296 | free(key); |
297 | return ret; | |
298 | } | |
299 | free(key); | |
f9f42560 | 300 | |
a086f921 | 301 | /* submodule.active is set */ |
627d9342 | 302 | sl = repo_config_get_value_multi(repo, "submodule.active"); |
a086f921 BW |
303 | if (sl) { |
304 | struct pathspec ps; | |
305 | struct argv_array args = ARGV_ARRAY_INIT; | |
306 | const struct string_list_item *item; | |
f9f42560 | 307 | |
a086f921 BW |
308 | for_each_string_list_item(item, sl) { |
309 | argv_array_push(&args, item->string); | |
310 | } | |
311 | ||
312 | parse_pathspec(&ps, 0, 0, NULL, args.argv); | |
313 | ret = match_pathspec(&ps, path, strlen(path), 0, NULL, 1); | |
314 | ||
315 | argv_array_clear(&args); | |
316 | clear_pathspec(&ps); | |
317 | return ret; | |
f9f42560 BW |
318 | } |
319 | ||
a086f921 BW |
320 | /* fallback to checking if the URL is set */ |
321 | key = xstrfmt("submodule.%s.url", module->name); | |
627d9342 | 322 | ret = !repo_config_get_string(repo, key, &value); |
a086f921 BW |
323 | |
324 | free(value); | |
325 | free(key); | |
f9f42560 BW |
326 | return ret; |
327 | } | |
328 | ||
15cdc647 | 329 | int is_submodule_populated_gently(const char *path, int *return_error_code) |
5688c28d BW |
330 | { |
331 | int ret = 0; | |
332 | char *gitdir = xstrfmt("%s/.git", path); | |
333 | ||
15cdc647 | 334 | if (resolve_gitdir_gently(gitdir, return_error_code)) |
5688c28d BW |
335 | ret = 1; |
336 | ||
337 | free(gitdir); | |
338 | return ret; | |
339 | } | |
340 | ||
bdab9721 BW |
341 | /* |
342 | * Dies if the provided 'prefix' corresponds to an unpopulated submodule | |
343 | */ | |
344 | void die_in_unpopulated_submodule(const struct index_state *istate, | |
345 | const char *prefix) | |
346 | { | |
347 | int i, prefixlen; | |
348 | ||
349 | if (!prefix) | |
350 | return; | |
351 | ||
352 | prefixlen = strlen(prefix); | |
353 | ||
354 | for (i = 0; i < istate->cache_nr; i++) { | |
355 | struct cache_entry *ce = istate->cache[i]; | |
356 | int ce_len = ce_namelen(ce); | |
357 | ||
358 | if (!S_ISGITLINK(ce->ce_mode)) | |
359 | continue; | |
360 | if (prefixlen <= ce_len) | |
361 | continue; | |
362 | if (strncmp(ce->name, prefix, ce_len)) | |
363 | continue; | |
364 | if (prefix[ce_len] != '/') | |
365 | continue; | |
366 | ||
367 | die(_("in unpopulated submodule '%s'"), ce->name); | |
368 | } | |
369 | } | |
370 | ||
c08397e3 BW |
371 | /* |
372 | * Dies if any paths in the provided pathspec descends into a submodule | |
373 | */ | |
374 | void die_path_inside_submodule(const struct index_state *istate, | |
375 | const struct pathspec *ps) | |
376 | { | |
377 | int i, j; | |
378 | ||
379 | for (i = 0; i < istate->cache_nr; i++) { | |
380 | struct cache_entry *ce = istate->cache[i]; | |
381 | int ce_len = ce_namelen(ce); | |
382 | ||
383 | if (!S_ISGITLINK(ce->ce_mode)) | |
384 | continue; | |
385 | ||
386 | for (j = 0; j < ps->nr ; j++) { | |
387 | const struct pathspec_item *item = &ps->items[j]; | |
388 | ||
389 | if (item->len <= ce_len) | |
390 | continue; | |
391 | if (item->match[ce_len] != '/') | |
392 | continue; | |
393 | if (strncmp(ce->name, item->match, ce_len)) | |
394 | continue; | |
395 | if (item->len == ce_len + 1) | |
396 | continue; | |
397 | ||
398 | die(_("Pathspec '%s' is in submodule '%.*s'"), | |
399 | item->original, ce_len, ce->name); | |
400 | } | |
401 | } | |
402 | } | |
403 | ||
ea2fa5a3 SB |
404 | int parse_submodule_update_strategy(const char *value, |
405 | struct submodule_update_strategy *dst) | |
406 | { | |
407 | free((void*)dst->command); | |
408 | dst->command = NULL; | |
409 | if (!strcmp(value, "none")) | |
410 | dst->type = SM_UPDATE_NONE; | |
411 | else if (!strcmp(value, "checkout")) | |
412 | dst->type = SM_UPDATE_CHECKOUT; | |
413 | else if (!strcmp(value, "rebase")) | |
414 | dst->type = SM_UPDATE_REBASE; | |
415 | else if (!strcmp(value, "merge")) | |
416 | dst->type = SM_UPDATE_MERGE; | |
417 | else if (skip_prefix(value, "!", &value)) { | |
418 | dst->type = SM_UPDATE_COMMAND; | |
419 | dst->command = xstrdup(value); | |
420 | } else | |
421 | return -1; | |
422 | return 0; | |
423 | } | |
424 | ||
3604242f SB |
425 | const char *submodule_strategy_to_string(const struct submodule_update_strategy *s) |
426 | { | |
427 | struct strbuf sb = STRBUF_INIT; | |
428 | switch (s->type) { | |
429 | case SM_UPDATE_CHECKOUT: | |
430 | return "checkout"; | |
431 | case SM_UPDATE_MERGE: | |
432 | return "merge"; | |
433 | case SM_UPDATE_REBASE: | |
434 | return "rebase"; | |
435 | case SM_UPDATE_NONE: | |
436 | return "none"; | |
437 | case SM_UPDATE_UNSPECIFIED: | |
438 | return NULL; | |
439 | case SM_UPDATE_COMMAND: | |
440 | strbuf_addf(&sb, "!%s", s->command); | |
441 | return strbuf_detach(&sb, NULL); | |
442 | } | |
443 | return NULL; | |
444 | } | |
445 | ||
46a958b3 JL |
446 | void handle_ignore_submodules_arg(struct diff_options *diffopt, |
447 | const char *arg) | |
448 | { | |
be4f2b40 JS |
449 | DIFF_OPT_CLR(diffopt, IGNORE_SUBMODULES); |
450 | DIFF_OPT_CLR(diffopt, IGNORE_UNTRACKED_IN_SUBMODULES); | |
451 | DIFF_OPT_CLR(diffopt, IGNORE_DIRTY_SUBMODULES); | |
452 | ||
46a958b3 JL |
453 | if (!strcmp(arg, "all")) |
454 | DIFF_OPT_SET(diffopt, IGNORE_SUBMODULES); | |
455 | else if (!strcmp(arg, "untracked")) | |
456 | DIFF_OPT_SET(diffopt, IGNORE_UNTRACKED_IN_SUBMODULES); | |
457 | else if (!strcmp(arg, "dirty")) | |
458 | DIFF_OPT_SET(diffopt, IGNORE_DIRTY_SUBMODULES); | |
aee9c7d6 | 459 | else if (strcmp(arg, "none")) |
46a958b3 JL |
460 | die("bad --ignore-submodules argument: %s", arg); |
461 | } | |
462 | ||
808a95dc JN |
463 | static int prepare_submodule_summary(struct rev_info *rev, const char *path, |
464 | struct commit *left, struct commit *right, | |
8e6df650 | 465 | struct commit_list *merge_bases) |
808a95dc | 466 | { |
8e6df650 | 467 | struct commit_list *list; |
808a95dc JN |
468 | |
469 | init_revisions(rev, NULL); | |
470 | setup_revisions(0, NULL, rev, NULL); | |
471 | rev->left_right = 1; | |
472 | rev->first_parent_only = 1; | |
473 | left->object.flags |= SYMMETRIC_LEFT; | |
474 | add_pending_object(rev, &left->object, path); | |
475 | add_pending_object(rev, &right->object, path); | |
808a95dc JN |
476 | for (list = merge_bases; list; list = list->next) { |
477 | list->item->object.flags |= UNINTERESTING; | |
478 | add_pending_object(rev, &list->item->object, | |
f2fd0760 | 479 | oid_to_hex(&list->item->object.oid)); |
808a95dc JN |
480 | } |
481 | return prepare_revision_walk(rev); | |
482 | } | |
483 | ||
484 | static void print_submodule_summary(struct rev_info *rev, FILE *f, | |
0f33a067 | 485 | const char *line_prefix, |
808a95dc JN |
486 | const char *del, const char *add, const char *reset) |
487 | { | |
488 | static const char format[] = " %m %s"; | |
489 | struct strbuf sb = STRBUF_INIT; | |
490 | struct commit *commit; | |
491 | ||
492 | while ((commit = get_revision(rev))) { | |
493 | struct pretty_print_context ctx = {0}; | |
494 | ctx.date_mode = rev->date_mode; | |
ecaee805 | 495 | ctx.output_encoding = get_log_output_encoding(); |
808a95dc | 496 | strbuf_setlen(&sb, 0); |
0f33a067 | 497 | strbuf_addstr(&sb, line_prefix); |
808a95dc JN |
498 | if (commit->object.flags & SYMMETRIC_LEFT) { |
499 | if (del) | |
500 | strbuf_addstr(&sb, del); | |
501 | } | |
502 | else if (add) | |
503 | strbuf_addstr(&sb, add); | |
504 | format_commit_message(commit, format, &sb, &ctx); | |
505 | if (reset) | |
506 | strbuf_addstr(&sb, reset); | |
507 | strbuf_addch(&sb, '\n'); | |
508 | fprintf(f, "%s", sb.buf); | |
509 | } | |
510 | strbuf_release(&sb); | |
511 | } | |
512 | ||
6cd5757c SB |
513 | static void prepare_submodule_repo_env_no_git_dir(struct argv_array *out) |
514 | { | |
515 | const char * const *var; | |
516 | ||
517 | for (var = local_repo_env; *var; var++) { | |
518 | if (strcmp(*var, CONFIG_DATA_ENVIRONMENT)) | |
519 | argv_array_push(out, *var); | |
520 | } | |
521 | } | |
522 | ||
523 | void prepare_submodule_repo_env(struct argv_array *out) | |
524 | { | |
525 | prepare_submodule_repo_env_no_git_dir(out); | |
526 | argv_array_pushf(out, "%s=%s", GIT_DIR_ENVIRONMENT, | |
527 | DEFAULT_GIT_DIR_ENVIRONMENT); | |
528 | } | |
529 | ||
8e6df650 JK |
530 | /* Helper function to display the submodule header line prior to the full |
531 | * summary output. If it can locate the submodule objects directory it will | |
532 | * attempt to lookup both the left and right commits and put them into the | |
533 | * left and right pointers. | |
534 | */ | |
535 | static void show_submodule_header(FILE *f, const char *path, | |
0f33a067 | 536 | const char *line_prefix, |
602a283a | 537 | struct object_id *one, struct object_id *two, |
4e215131 | 538 | unsigned dirty_submodule, const char *meta, |
8e6df650 JK |
539 | const char *reset, |
540 | struct commit **left, struct commit **right, | |
541 | struct commit_list **merge_bases) | |
752c0c24 | 542 | { |
752c0c24 JS |
543 | const char *message = NULL; |
544 | struct strbuf sb = STRBUF_INIT; | |
752c0c24 JS |
545 | int fast_forward = 0, fast_backward = 0; |
546 | ||
c7e1a736 | 547 | if (dirty_submodule & DIRTY_SUBMODULE_UNTRACKED) |
0f33a067 JK |
548 | fprintf(f, "%sSubmodule %s contains untracked content\n", |
549 | line_prefix, path); | |
c7e1a736 | 550 | if (dirty_submodule & DIRTY_SUBMODULE_MODIFIED) |
0f33a067 JK |
551 | fprintf(f, "%sSubmodule %s contains modified content\n", |
552 | line_prefix, path); | |
c7e1a736 | 553 | |
8e6df650 JK |
554 | if (is_null_oid(one)) |
555 | message = "(new submodule)"; | |
556 | else if (is_null_oid(two)) | |
557 | message = "(submodule deleted)"; | |
558 | ||
559 | if (add_submodule_odb(path)) { | |
560 | if (!message) | |
561 | message = "(not initialized)"; | |
562 | goto output_header; | |
563 | } | |
564 | ||
565 | /* | |
566 | * Attempt to lookup the commit references, and determine if this is | |
567 | * a fast forward or fast backwards update. | |
568 | */ | |
bc83266a | 569 | *left = lookup_commit_reference(one); |
570 | *right = lookup_commit_reference(two); | |
8e6df650 JK |
571 | |
572 | /* | |
573 | * Warn about missing commits in the submodule project, but only if | |
574 | * they aren't null. | |
575 | */ | |
576 | if ((!is_null_oid(one) && !*left) || | |
577 | (!is_null_oid(two) && !*right)) | |
578 | message = "(commits not present)"; | |
579 | ||
580 | *merge_bases = get_merge_bases(*left, *right); | |
581 | if (*merge_bases) { | |
582 | if ((*merge_bases)->item == *left) | |
583 | fast_forward = 1; | |
584 | else if ((*merge_bases)->item == *right) | |
585 | fast_backward = 1; | |
586 | } | |
587 | ||
602a283a | 588 | if (!oidcmp(one, two)) { |
c7e1a736 JL |
589 | strbuf_release(&sb); |
590 | return; | |
591 | } | |
592 | ||
8e6df650 | 593 | output_header: |
a94bb683 | 594 | strbuf_addf(&sb, "%s%sSubmodule %s ", line_prefix, meta, path); |
69e65449 | 595 | strbuf_add_unique_abbrev(&sb, one->hash, DEFAULT_ABBREV); |
a94bb683 | 596 | strbuf_addstr(&sb, (fast_backward || fast_forward) ? ".." : "..."); |
f0798e6c | 597 | strbuf_add_unique_abbrev(&sb, two->hash, DEFAULT_ABBREV); |
752c0c24 | 598 | if (message) |
4e215131 | 599 | strbuf_addf(&sb, " %s%s\n", message, reset); |
752c0c24 | 600 | else |
4e215131 | 601 | strbuf_addf(&sb, "%s:%s\n", fast_backward ? " (rewind)" : "", reset); |
752c0c24 JS |
602 | fwrite(sb.buf, sb.len, 1, f); |
603 | ||
752c0c24 JS |
604 | strbuf_release(&sb); |
605 | } | |
ee6fc514 | 606 | |
8e6df650 JK |
607 | void show_submodule_summary(FILE *f, const char *path, |
608 | const char *line_prefix, | |
609 | struct object_id *one, struct object_id *two, | |
610 | unsigned dirty_submodule, const char *meta, | |
611 | const char *del, const char *add, const char *reset) | |
612 | { | |
613 | struct rev_info rev; | |
614 | struct commit *left = NULL, *right = NULL; | |
615 | struct commit_list *merge_bases = NULL; | |
616 | ||
617 | show_submodule_header(f, path, line_prefix, one, two, dirty_submodule, | |
618 | meta, reset, &left, &right, &merge_bases); | |
619 | ||
620 | /* | |
621 | * If we don't have both a left and a right pointer, there is no | |
622 | * reason to try and display a summary. The header line should contain | |
623 | * all the information the user needs. | |
624 | */ | |
625 | if (!left || !right) | |
626 | goto out; | |
627 | ||
628 | /* Treat revision walker failure the same as missing commits */ | |
629 | if (prepare_submodule_summary(&rev, path, left, right, merge_bases)) { | |
630 | fprintf(f, "%s(revision walker failed)\n", line_prefix); | |
631 | goto out; | |
632 | } | |
633 | ||
634 | print_submodule_summary(&rev, f, line_prefix, del, add, reset); | |
635 | ||
636 | out: | |
637 | if (merge_bases) | |
638 | free_commit_list(merge_bases); | |
639 | clear_commit_marks(left, ~0); | |
640 | clear_commit_marks(right, ~0); | |
641 | } | |
642 | ||
fd47ae6a JK |
643 | void show_submodule_inline_diff(FILE *f, const char *path, |
644 | const char *line_prefix, | |
645 | struct object_id *one, struct object_id *two, | |
646 | unsigned dirty_submodule, const char *meta, | |
647 | const char *del, const char *add, const char *reset, | |
648 | const struct diff_options *o) | |
649 | { | |
650 | const struct object_id *old = &empty_tree_oid, *new = &empty_tree_oid; | |
651 | struct commit *left = NULL, *right = NULL; | |
652 | struct commit_list *merge_bases = NULL; | |
653 | struct strbuf submodule_dir = STRBUF_INIT; | |
654 | struct child_process cp = CHILD_PROCESS_INIT; | |
655 | ||
656 | show_submodule_header(f, path, line_prefix, one, two, dirty_submodule, | |
657 | meta, reset, &left, &right, &merge_bases); | |
658 | ||
659 | /* We need a valid left and right commit to display a difference */ | |
660 | if (!(left || is_null_oid(one)) || | |
661 | !(right || is_null_oid(two))) | |
662 | goto done; | |
663 | ||
664 | if (left) | |
665 | old = one; | |
666 | if (right) | |
667 | new = two; | |
668 | ||
669 | fflush(f); | |
670 | cp.git_cmd = 1; | |
671 | cp.dir = path; | |
672 | cp.out = dup(fileno(f)); | |
673 | cp.no_stdin = 1; | |
674 | ||
675 | /* TODO: other options may need to be passed here. */ | |
5a522142 SB |
676 | argv_array_pushl(&cp.args, "diff", "--submodule=diff", NULL); |
677 | ||
fd47ae6a JK |
678 | argv_array_pushf(&cp.args, "--line-prefix=%s", line_prefix); |
679 | if (DIFF_OPT_TST(o, REVERSE_DIFF)) { | |
680 | argv_array_pushf(&cp.args, "--src-prefix=%s%s/", | |
681 | o->b_prefix, path); | |
682 | argv_array_pushf(&cp.args, "--dst-prefix=%s%s/", | |
683 | o->a_prefix, path); | |
684 | } else { | |
685 | argv_array_pushf(&cp.args, "--src-prefix=%s%s/", | |
686 | o->a_prefix, path); | |
687 | argv_array_pushf(&cp.args, "--dst-prefix=%s%s/", | |
688 | o->b_prefix, path); | |
689 | } | |
690 | argv_array_push(&cp.args, oid_to_hex(old)); | |
691 | /* | |
692 | * If the submodule has modified content, we will diff against the | |
693 | * work tree, under the assumption that the user has asked for the | |
694 | * diff format and wishes to actually see all differences even if they | |
695 | * haven't yet been committed to the submodule yet. | |
696 | */ | |
697 | if (!(dirty_submodule & DIRTY_SUBMODULE_MODIFIED)) | |
698 | argv_array_push(&cp.args, oid_to_hex(new)); | |
699 | ||
17b254cd | 700 | prepare_submodule_repo_env(&cp.env_array); |
fd47ae6a JK |
701 | if (run_command(&cp)) |
702 | fprintf(f, "(diff failed)\n"); | |
703 | ||
704 | done: | |
705 | strbuf_release(&submodule_dir); | |
706 | if (merge_bases) | |
707 | free_commit_list(merge_bases); | |
708 | if (left) | |
709 | clear_commit_marks(left, ~0); | |
710 | if (right) | |
711 | clear_commit_marks(right, ~0); | |
712 | } | |
713 | ||
84f8925e SB |
714 | int should_update_submodules(void) |
715 | { | |
716 | return config_update_recurse_submodules == RECURSE_SUBMODULES_ON; | |
717 | } | |
718 | ||
719 | const struct submodule *submodule_from_ce(const struct cache_entry *ce) | |
720 | { | |
721 | if (!S_ISGITLINK(ce->ce_mode)) | |
722 | return NULL; | |
723 | ||
724 | if (!should_update_submodules()) | |
725 | return NULL; | |
726 | ||
727 | return submodule_from_path(null_sha1, ce->name); | |
728 | } | |
729 | ||
aacc5c1a BW |
730 | static struct oid_array *submodule_commits(struct string_list *submodules, |
731 | const char *path) | |
732 | { | |
733 | struct string_list_item *item; | |
734 | ||
735 | item = string_list_insert(submodules, path); | |
736 | if (item->util) | |
737 | return (struct oid_array *) item->util; | |
738 | ||
739 | /* NEEDSWORK: should we have oid_array_init()? */ | |
740 | item->util = xcalloc(1, sizeof(struct oid_array)); | |
741 | return (struct oid_array *) item->util; | |
742 | } | |
743 | ||
744 | static void collect_changed_submodules_cb(struct diff_queue_struct *q, | |
745 | struct diff_options *options, | |
746 | void *data) | |
747 | { | |
748 | int i; | |
749 | struct string_list *changed = data; | |
750 | ||
751 | for (i = 0; i < q->nr; i++) { | |
752 | struct diff_filepair *p = q->queue[i]; | |
753 | struct oid_array *commits; | |
754 | if (!S_ISGITLINK(p->two->mode)) | |
755 | continue; | |
756 | ||
757 | if (S_ISGITLINK(p->one->mode)) { | |
758 | /* | |
759 | * NEEDSWORK: We should honor the name configured in | |
760 | * the .gitmodules file of the commit we are examining | |
761 | * here to be able to correctly follow submodules | |
762 | * being moved around. | |
763 | */ | |
764 | commits = submodule_commits(changed, p->two->path); | |
765 | oid_array_append(commits, &p->two->oid); | |
766 | } else { | |
767 | /* Submodule is new or was moved here */ | |
768 | /* | |
769 | * NEEDSWORK: When the .git directories of submodules | |
770 | * live inside the superprojects .git directory some | |
771 | * day we should fetch new submodules directly into | |
772 | * that location too when config or options request | |
773 | * that so they can be checked out from there. | |
774 | */ | |
775 | continue; | |
776 | } | |
777 | } | |
778 | } | |
779 | ||
780 | /* | |
781 | * Collect the paths of submodules in 'changed' which have changed based on | |
782 | * the revisions as specified in 'argv'. Each entry in 'changed' will also | |
783 | * have a corresponding 'struct oid_array' (in the 'util' field) which lists | |
784 | * what the submodule pointers were updated to during the change. | |
785 | */ | |
786 | static void collect_changed_submodules(struct string_list *changed, | |
787 | struct argv_array *argv) | |
788 | { | |
789 | struct rev_info rev; | |
790 | const struct commit *commit; | |
791 | ||
792 | init_revisions(&rev, NULL); | |
793 | setup_revisions(argv->argc, argv->argv, &rev, NULL); | |
794 | if (prepare_revision_walk(&rev)) | |
795 | die("revision walk setup failed"); | |
796 | ||
797 | while ((commit = get_revision(&rev))) { | |
798 | struct rev_info diff_rev; | |
799 | ||
800 | init_revisions(&diff_rev, NULL); | |
801 | diff_rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK; | |
802 | diff_rev.diffopt.format_callback = collect_changed_submodules_cb; | |
803 | diff_rev.diffopt.format_callback_data = changed; | |
804 | diff_tree_combined_merge(commit, 1, &diff_rev); | |
805 | } | |
806 | ||
807 | reset_revision_walk(); | |
808 | } | |
809 | ||
810 | static void free_submodules_oids(struct string_list *submodules) | |
811 | { | |
812 | struct string_list_item *item; | |
813 | for_each_string_list_item(item, submodules) | |
814 | oid_array_clear((struct oid_array *) item->util); | |
815 | string_list_clear(submodules, 1); | |
816 | } | |
817 | ||
7290ef58 MH |
818 | static int has_remote(const char *refname, const struct object_id *oid, |
819 | int flags, void *cb_data) | |
d2b17b32 FG |
820 | { |
821 | return 1; | |
822 | } | |
823 | ||
1b7ba794 | 824 | static int append_oid_to_argv(const struct object_id *oid, void *data) |
d2b17b32 | 825 | { |
9cfa1c26 | 826 | struct argv_array *argv = data; |
1b7ba794 | 827 | argv_array_push(argv, oid_to_hex(oid)); |
9cfa1c26 HV |
828 | return 0; |
829 | } | |
830 | ||
1b7ba794 | 831 | static int check_has_commit(const struct object_id *oid, void *data) |
d2b17b32 | 832 | { |
5b6607d2 HV |
833 | int *has_commit = data; |
834 | ||
bc83266a | 835 | if (!lookup_commit_reference(oid)) |
5b6607d2 HV |
836 | *has_commit = 0; |
837 | ||
838 | return 0; | |
839 | } | |
840 | ||
910650d2 | 841 | static int submodule_has_commits(const char *path, struct oid_array *commits) |
5b6607d2 HV |
842 | { |
843 | int has_commit = 1; | |
844 | ||
7c8d2b00 | 845 | /* |
64127575 | 846 | * Perform a cheap, but incorrect check for the existence of 'commits'. |
7c8d2b00 | 847 | * This is done by adding the submodule's object store to the in-core |
64127575 | 848 | * object store, and then querying for each commit's existence. If we |
7c8d2b00 BW |
849 | * do not have the commit object anywhere, there is no chance we have |
850 | * it in the object store of the correct submodule and have it | |
851 | * reachable from a ref, so we can fail early without spawning rev-list | |
852 | * which is expensive. | |
853 | */ | |
5b6607d2 HV |
854 | if (add_submodule_odb(path)) |
855 | return 0; | |
856 | ||
910650d2 | 857 | oid_array_for_each_unique(commits, check_has_commit, &has_commit); |
7c8d2b00 BW |
858 | |
859 | if (has_commit) { | |
860 | /* | |
861 | * Even if the submodule is checked out and the commit is | |
862 | * present, make sure it exists in the submodule's object store | |
863 | * and that it is reachable from a ref. | |
864 | */ | |
865 | struct child_process cp = CHILD_PROCESS_INIT; | |
866 | struct strbuf out = STRBUF_INIT; | |
867 | ||
868 | argv_array_pushl(&cp.args, "rev-list", "-n", "1", NULL); | |
869 | oid_array_for_each_unique(commits, append_oid_to_argv, &cp.args); | |
870 | argv_array_pushl(&cp.args, "--not", "--all", NULL); | |
871 | ||
872 | prepare_submodule_repo_env(&cp.env_array); | |
873 | cp.git_cmd = 1; | |
874 | cp.no_stdin = 1; | |
875 | cp.dir = path; | |
876 | ||
877 | if (capture_command(&cp, &out, GIT_MAX_HEXSZ + 1) || out.len) | |
878 | has_commit = 0; | |
879 | ||
880 | strbuf_release(&out); | |
881 | } | |
882 | ||
5b6607d2 HV |
883 | return has_commit; |
884 | } | |
885 | ||
910650d2 | 886 | static int submodule_needs_pushing(const char *path, struct oid_array *commits) |
5b6607d2 HV |
887 | { |
888 | if (!submodule_has_commits(path, commits)) | |
250ab24a HV |
889 | /* |
890 | * NOTE: We do consider it safe to return "no" here. The | |
891 | * correct answer would be "We do not know" instead of | |
892 | * "No push needed", but it is quite hard to change | |
893 | * the submodule pointer without having the submodule | |
894 | * around. If a user did however change the submodules | |
895 | * without having the submodule around, this indicates | |
896 | * an expert who knows what they are doing or a | |
897 | * maintainer integrating work from other people. In | |
898 | * both cases it should be safe to skip this check. | |
899 | */ | |
d2b17b32 FG |
900 | return 0; |
901 | ||
902 | if (for_each_remote_ref_submodule(path, has_remote, NULL) > 0) { | |
d3180279 | 903 | struct child_process cp = CHILD_PROCESS_INIT; |
d2b17b32 FG |
904 | struct strbuf buf = STRBUF_INIT; |
905 | int needs_pushing = 0; | |
906 | ||
5b6607d2 | 907 | argv_array_push(&cp.args, "rev-list"); |
910650d2 | 908 | oid_array_for_each_unique(commits, append_oid_to_argv, &cp.args); |
5b6607d2 HV |
909 | argv_array_pushl(&cp.args, "--not", "--remotes", "-n", "1" , NULL); |
910 | ||
c12e8656 | 911 | prepare_submodule_repo_env(&cp.env_array); |
d2b17b32 FG |
912 | cp.git_cmd = 1; |
913 | cp.no_stdin = 1; | |
914 | cp.out = -1; | |
915 | cp.dir = path; | |
916 | if (start_command(&cp)) | |
5b6607d2 HV |
917 | die("Could not run 'git rev-list <commits> --not --remotes -n 1' command in submodule %s", |
918 | path); | |
d2b17b32 FG |
919 | if (strbuf_read(&buf, cp.out, 41)) |
920 | needs_pushing = 1; | |
921 | finish_command(&cp); | |
922 | close(cp.out); | |
923 | strbuf_release(&buf); | |
924 | return needs_pushing; | |
925 | } | |
926 | ||
927 | return 0; | |
928 | } | |
929 | ||
910650d2 | 930 | int find_unpushed_submodules(struct oid_array *commits, |
a762e51e | 931 | const char *remotes_name, struct string_list *needs_pushing) |
d2b17b32 | 932 | { |
14739447 HV |
933 | struct string_list submodules = STRING_LIST_INIT_DUP; |
934 | struct string_list_item *submodule; | |
9cfa1c26 | 935 | struct argv_array argv = ARGV_ARRAY_INIT; |
a762e51e | 936 | |
9cfa1c26 HV |
937 | /* argv.argv[0] will be ignored by setup_revisions */ |
938 | argv_array_push(&argv, "find_unpushed_submodules"); | |
910650d2 | 939 | oid_array_for_each_unique(commits, append_oid_to_argv, &argv); |
9cfa1c26 HV |
940 | argv_array_push(&argv, "--not"); |
941 | argv_array_pushf(&argv, "--remotes=%s", remotes_name); | |
942 | ||
aacc5c1a | 943 | collect_changed_submodules(&submodules, &argv); |
d2b17b32 | 944 | |
14739447 | 945 | for_each_string_list_item(submodule, &submodules) { |
aacc5c1a BW |
946 | struct oid_array *commits = submodule->util; |
947 | const char *path = submodule->string; | |
5b6607d2 | 948 | |
aacc5c1a BW |
949 | if (submodule_needs_pushing(path, commits)) |
950 | string_list_insert(needs_pushing, path); | |
14739447 | 951 | } |
610b2337 BW |
952 | |
953 | free_submodules_oids(&submodules); | |
aacc5c1a | 954 | argv_array_clear(&argv); |
d2b17b32 | 955 | |
a762e51e | 956 | return needs_pushing->nr; |
d2b17b32 FG |
957 | } |
958 | ||
2a90556d | 959 | static int push_submodule(const char *path, |
06bf4ad1 BW |
960 | const struct remote *remote, |
961 | const char **refspec, int refspec_nr, | |
2a90556d BW |
962 | const struct string_list *push_options, |
963 | int dry_run) | |
eb21c732 HV |
964 | { |
965 | if (add_submodule_odb(path)) | |
966 | return 1; | |
967 | ||
968 | if (for_each_remote_ref_submodule(path, has_remote, NULL) > 0) { | |
d3180279 | 969 | struct child_process cp = CHILD_PROCESS_INIT; |
0301c821 BW |
970 | argv_array_push(&cp.args, "push"); |
971 | if (dry_run) | |
972 | argv_array_push(&cp.args, "--dry-run"); | |
eb21c732 | 973 | |
2a90556d BW |
974 | if (push_options && push_options->nr) { |
975 | const struct string_list_item *item; | |
976 | for_each_string_list_item(item, push_options) | |
977 | argv_array_pushf(&cp.args, "--push-option=%s", | |
978 | item->string); | |
979 | } | |
06bf4ad1 BW |
980 | |
981 | if (remote->origin != REMOTE_UNCONFIGURED) { | |
982 | int i; | |
983 | argv_array_push(&cp.args, remote->name); | |
984 | for (i = 0; i < refspec_nr; i++) | |
985 | argv_array_push(&cp.args, refspec[i]); | |
986 | } | |
987 | ||
c12e8656 | 988 | prepare_submodule_repo_env(&cp.env_array); |
eb21c732 HV |
989 | cp.git_cmd = 1; |
990 | cp.no_stdin = 1; | |
991 | cp.dir = path; | |
992 | if (run_command(&cp)) | |
993 | return 0; | |
994 | close(cp.out); | |
995 | } | |
996 | ||
997 | return 1; | |
998 | } | |
999 | ||
06bf4ad1 BW |
1000 | /* |
1001 | * Perform a check in the submodule to see if the remote and refspec work. | |
1002 | * Die if the submodule can't be pushed. | |
1003 | */ | |
1004 | static void submodule_push_check(const char *path, const struct remote *remote, | |
1005 | const char **refspec, int refspec_nr) | |
1006 | { | |
1007 | struct child_process cp = CHILD_PROCESS_INIT; | |
1008 | int i; | |
1009 | ||
1010 | argv_array_push(&cp.args, "submodule--helper"); | |
1011 | argv_array_push(&cp.args, "push-check"); | |
1012 | argv_array_push(&cp.args, remote->name); | |
1013 | ||
1014 | for (i = 0; i < refspec_nr; i++) | |
1015 | argv_array_push(&cp.args, refspec[i]); | |
1016 | ||
1017 | prepare_submodule_repo_env(&cp.env_array); | |
1018 | cp.git_cmd = 1; | |
1019 | cp.no_stdin = 1; | |
1020 | cp.no_stdout = 1; | |
1021 | cp.dir = path; | |
1022 | ||
1023 | /* | |
1024 | * Simply indicate if 'submodule--helper push-check' failed. | |
1025 | * More detailed error information will be provided by the | |
1026 | * child process. | |
1027 | */ | |
1028 | if (run_command(&cp)) | |
1029 | die("process for submodule '%s' failed", path); | |
1030 | } | |
1031 | ||
910650d2 | 1032 | int push_unpushed_submodules(struct oid_array *commits, |
06bf4ad1 BW |
1033 | const struct remote *remote, |
1034 | const char **refspec, int refspec_nr, | |
2a90556d | 1035 | const struct string_list *push_options, |
0301c821 | 1036 | int dry_run) |
eb21c732 HV |
1037 | { |
1038 | int i, ret = 1; | |
f93d7c6f | 1039 | struct string_list needs_pushing = STRING_LIST_INIT_DUP; |
eb21c732 | 1040 | |
06bf4ad1 | 1041 | if (!find_unpushed_submodules(commits, remote->name, &needs_pushing)) |
eb21c732 HV |
1042 | return 1; |
1043 | ||
06bf4ad1 BW |
1044 | /* |
1045 | * Verify that the remote and refspec can be propagated to all | |
1046 | * submodules. This check can be skipped if the remote and refspec | |
1047 | * won't be propagated due to the remote being unconfigured (e.g. a URL | |
1048 | * instead of a remote name). | |
1049 | */ | |
1050 | if (remote->origin != REMOTE_UNCONFIGURED) | |
1051 | for (i = 0; i < needs_pushing.nr; i++) | |
1052 | submodule_push_check(needs_pushing.items[i].string, | |
1053 | remote, refspec, refspec_nr); | |
1054 | ||
1055 | /* Actually push the submodules */ | |
eb21c732 HV |
1056 | for (i = 0; i < needs_pushing.nr; i++) { |
1057 | const char *path = needs_pushing.items[i].string; | |
1058 | fprintf(stderr, "Pushing submodule '%s'\n", path); | |
06bf4ad1 BW |
1059 | if (!push_submodule(path, remote, refspec, refspec_nr, |
1060 | push_options, dry_run)) { | |
eb21c732 HV |
1061 | fprintf(stderr, "Unable to push submodule '%s'\n", path); |
1062 | ret = 0; | |
1063 | } | |
1064 | } | |
1065 | ||
1066 | string_list_clear(&needs_pushing, 0); | |
1067 | ||
1068 | return ret; | |
1069 | } | |
1070 | ||
419fd786 BW |
1071 | static int append_oid_to_array(const char *ref, const struct object_id *oid, |
1072 | int flags, void *data) | |
6859de45 | 1073 | { |
419fd786 BW |
1074 | struct oid_array *array = data; |
1075 | oid_array_append(array, oid); | |
6859de45 JK |
1076 | return 0; |
1077 | } | |
1078 | ||
2eb80bcd | 1079 | void check_for_new_submodule_commits(struct object_id *oid) |
6859de45 JK |
1080 | { |
1081 | if (!initialized_fetch_ref_tips) { | |
419fd786 | 1082 | for_each_ref(append_oid_to_array, &ref_tips_before_fetch); |
6859de45 JK |
1083 | initialized_fetch_ref_tips = 1; |
1084 | } | |
1085 | ||
910650d2 | 1086 | oid_array_append(&ref_tips_after_fetch, oid); |
6859de45 JK |
1087 | } |
1088 | ||
6859de45 | 1089 | static void calculate_changed_submodule_paths(void) |
88a21979 | 1090 | { |
c1189cae | 1091 | struct argv_array argv = ARGV_ARRAY_INIT; |
aacc5c1a BW |
1092 | struct string_list changed_submodules = STRING_LIST_INIT_DUP; |
1093 | const struct string_list_item *item; | |
88a21979 | 1094 | |
18322bad | 1095 | /* No need to check if there are no submodules configured */ |
851e18c3 | 1096 | if (!submodule_from_path(NULL, NULL)) |
18322bad JL |
1097 | return; |
1098 | ||
c1189cae | 1099 | argv_array_push(&argv, "--"); /* argv[0] program name */ |
910650d2 | 1100 | oid_array_for_each_unique(&ref_tips_after_fetch, |
d1a8460c | 1101 | append_oid_to_argv, &argv); |
c1189cae | 1102 | argv_array_push(&argv, "--not"); |
910650d2 | 1103 | oid_array_for_each_unique(&ref_tips_before_fetch, |
d1a8460c | 1104 | append_oid_to_argv, &argv); |
88a21979 JL |
1105 | |
1106 | /* | |
1107 | * Collect all submodules (whether checked out or not) for which new | |
1108 | * commits have been recorded upstream in "changed_submodule_paths". | |
1109 | */ | |
aacc5c1a BW |
1110 | collect_changed_submodules(&changed_submodules, &argv); |
1111 | ||
1112 | for_each_string_list_item(item, &changed_submodules) { | |
1113 | struct oid_array *commits = item->util; | |
1114 | const char *path = item->string; | |
1115 | ||
1116 | if (!submodule_has_commits(path, commits)) | |
1117 | string_list_append(&changed_submodule_paths, path); | |
88a21979 | 1118 | } |
6859de45 | 1119 | |
aacc5c1a | 1120 | free_submodules_oids(&changed_submodules); |
c1189cae | 1121 | argv_array_clear(&argv); |
910650d2 | 1122 | oid_array_clear(&ref_tips_before_fetch); |
1123 | oid_array_clear(&ref_tips_after_fetch); | |
6859de45 | 1124 | initialized_fetch_ref_tips = 0; |
88a21979 JL |
1125 | } |
1126 | ||
a6d7eb2c SB |
1127 | int submodule_touches_in_range(struct object_id *excl_oid, |
1128 | struct object_id *incl_oid) | |
1129 | { | |
1130 | struct string_list subs = STRING_LIST_INIT_DUP; | |
1131 | struct argv_array args = ARGV_ARRAY_INIT; | |
1132 | int ret; | |
1133 | ||
1134 | gitmodules_config(); | |
1135 | /* No need to check if there are no submodules configured */ | |
1136 | if (!submodule_from_path(NULL, NULL)) | |
1137 | return 0; | |
1138 | ||
1139 | argv_array_push(&args, "--"); /* args[0] program name */ | |
1140 | argv_array_push(&args, oid_to_hex(incl_oid)); | |
1141 | argv_array_push(&args, "--not"); | |
1142 | argv_array_push(&args, oid_to_hex(excl_oid)); | |
1143 | ||
1144 | collect_changed_submodules(&subs, &args); | |
1145 | ret = subs.nr; | |
1146 | ||
1147 | argv_array_clear(&args); | |
1148 | ||
1149 | free_submodules_oids(&subs); | |
1150 | return ret; | |
1151 | } | |
1152 | ||
fe85ee6e SB |
1153 | struct submodule_parallel_fetch { |
1154 | int count; | |
1155 | struct argv_array args; | |
1156 | const char *work_tree; | |
1157 | const char *prefix; | |
1158 | int command_line_option; | |
8fa29159 | 1159 | int default_option; |
fe85ee6e SB |
1160 | int quiet; |
1161 | int result; | |
1162 | }; | |
8fa29159 | 1163 | #define SPF_INIT {0, ARGV_ARRAY_INIT, NULL, NULL, 0, 0, 0, 0} |
fe85ee6e SB |
1164 | |
1165 | static int get_next_submodule(struct child_process *cp, | |
1166 | struct strbuf *err, void *data, void **task_cb) | |
7dce19d3 | 1167 | { |
fe85ee6e SB |
1168 | int ret = 0; |
1169 | struct submodule_parallel_fetch *spf = data; | |
6859de45 | 1170 | |
fe85ee6e | 1171 | for (; spf->count < active_nr; spf->count++) { |
7dce19d3 JL |
1172 | struct strbuf submodule_path = STRBUF_INIT; |
1173 | struct strbuf submodule_git_dir = STRBUF_INIT; | |
1174 | struct strbuf submodule_prefix = STRBUF_INIT; | |
fe85ee6e | 1175 | const struct cache_entry *ce = active_cache[spf->count]; |
851e18c3 HV |
1176 | const char *git_dir, *default_argv; |
1177 | const struct submodule *submodule; | |
7dce19d3 JL |
1178 | |
1179 | if (!S_ISGITLINK(ce->ce_mode)) | |
1180 | continue; | |
1181 | ||
851e18c3 HV |
1182 | submodule = submodule_from_path(null_sha1, ce->name); |
1183 | if (!submodule) | |
1184 | submodule = submodule_from_name(null_sha1, ce->name); | |
7dce19d3 | 1185 | |
88a21979 | 1186 | default_argv = "yes"; |
fe85ee6e | 1187 | if (spf->command_line_option == RECURSE_SUBMODULES_DEFAULT) { |
851e18c3 HV |
1188 | if (submodule && |
1189 | submodule->fetch_recurse != | |
1190 | RECURSE_SUBMODULES_NONE) { | |
1191 | if (submodule->fetch_recurse == | |
1192 | RECURSE_SUBMODULES_OFF) | |
c1a3c364 | 1193 | continue; |
851e18c3 HV |
1194 | if (submodule->fetch_recurse == |
1195 | RECURSE_SUBMODULES_ON_DEMAND) { | |
bf42b384 JL |
1196 | if (!unsorted_string_list_lookup(&changed_submodule_paths, ce->name)) |
1197 | continue; | |
1198 | default_argv = "on-demand"; | |
1199 | } | |
c1a3c364 | 1200 | } else { |
8fa29159 | 1201 | if ((spf->default_option == RECURSE_SUBMODULES_OFF) || |
d4e98b58 | 1202 | gitmodules_is_unmerged) |
c1a3c364 | 1203 | continue; |
8fa29159 | 1204 | if (spf->default_option == RECURSE_SUBMODULES_ON_DEMAND) { |
88a21979 JL |
1205 | if (!unsorted_string_list_lookup(&changed_submodule_paths, ce->name)) |
1206 | continue; | |
1207 | default_argv = "on-demand"; | |
1208 | } | |
c1a3c364 | 1209 | } |
fe85ee6e | 1210 | } else if (spf->command_line_option == RECURSE_SUBMODULES_ON_DEMAND) { |
8f0700dd JL |
1211 | if (!unsorted_string_list_lookup(&changed_submodule_paths, ce->name)) |
1212 | continue; | |
1213 | default_argv = "on-demand"; | |
be254a0e JL |
1214 | } |
1215 | ||
fe85ee6e | 1216 | strbuf_addf(&submodule_path, "%s/%s", spf->work_tree, ce->name); |
7dce19d3 | 1217 | strbuf_addf(&submodule_git_dir, "%s/.git", submodule_path.buf); |
fe85ee6e | 1218 | strbuf_addf(&submodule_prefix, "%s%s/", spf->prefix, ce->name); |
13d6ec91 | 1219 | git_dir = read_gitfile(submodule_git_dir.buf); |
7dce19d3 JL |
1220 | if (!git_dir) |
1221 | git_dir = submodule_git_dir.buf; | |
1222 | if (is_directory(git_dir)) { | |
fe85ee6e SB |
1223 | child_process_init(cp); |
1224 | cp->dir = strbuf_detach(&submodule_path, NULL); | |
c12e8656 | 1225 | prepare_submodule_repo_env(&cp->env_array); |
fe85ee6e SB |
1226 | cp->git_cmd = 1; |
1227 | if (!spf->quiet) | |
1228 | strbuf_addf(err, "Fetching submodule %s%s\n", | |
1229 | spf->prefix, ce->name); | |
1230 | argv_array_init(&cp->args); | |
1231 | argv_array_pushv(&cp->args, spf->args.argv); | |
1232 | argv_array_push(&cp->args, default_argv); | |
1233 | argv_array_push(&cp->args, "--submodule-prefix"); | |
1234 | argv_array_push(&cp->args, submodule_prefix.buf); | |
1235 | ret = 1; | |
7dce19d3 JL |
1236 | } |
1237 | strbuf_release(&submodule_path); | |
1238 | strbuf_release(&submodule_git_dir); | |
1239 | strbuf_release(&submodule_prefix); | |
fe85ee6e SB |
1240 | if (ret) { |
1241 | spf->count++; | |
1242 | return 1; | |
1243 | } | |
7dce19d3 | 1244 | } |
fe85ee6e SB |
1245 | return 0; |
1246 | } | |
1247 | ||
2a73b3da | 1248 | static int fetch_start_failure(struct strbuf *err, |
fe85ee6e SB |
1249 | void *cb, void *task_cb) |
1250 | { | |
1251 | struct submodule_parallel_fetch *spf = cb; | |
1252 | ||
1253 | spf->result = 1; | |
1254 | ||
1255 | return 0; | |
1256 | } | |
1257 | ||
2a73b3da SB |
1258 | static int fetch_finish(int retvalue, struct strbuf *err, |
1259 | void *cb, void *task_cb) | |
fe85ee6e SB |
1260 | { |
1261 | struct submodule_parallel_fetch *spf = cb; | |
1262 | ||
1263 | if (retvalue) | |
1264 | spf->result = 1; | |
1265 | ||
1266 | return 0; | |
1267 | } | |
1268 | ||
1269 | int fetch_populated_submodules(const struct argv_array *options, | |
1270 | const char *prefix, int command_line_option, | |
8fa29159 | 1271 | int default_option, |
62104ba1 | 1272 | int quiet, int max_parallel_jobs) |
fe85ee6e SB |
1273 | { |
1274 | int i; | |
fe85ee6e SB |
1275 | struct submodule_parallel_fetch spf = SPF_INIT; |
1276 | ||
1277 | spf.work_tree = get_git_work_tree(); | |
1278 | spf.command_line_option = command_line_option; | |
8fa29159 | 1279 | spf.default_option = default_option; |
fe85ee6e SB |
1280 | spf.quiet = quiet; |
1281 | spf.prefix = prefix; | |
1282 | ||
1283 | if (!spf.work_tree) | |
1284 | goto out; | |
1285 | ||
1286 | if (read_cache() < 0) | |
1287 | die("index file corrupt"); | |
1288 | ||
1289 | argv_array_push(&spf.args, "fetch"); | |
1290 | for (i = 0; i < options->argc; i++) | |
1291 | argv_array_push(&spf.args, options->argv[i]); | |
1292 | argv_array_push(&spf.args, "--recurse-submodules-default"); | |
1293 | /* default value, "--submodule-prefix" and its value are added later */ | |
1294 | ||
1295 | calculate_changed_submodule_paths(); | |
1296 | run_processes_parallel(max_parallel_jobs, | |
1297 | get_next_submodule, | |
1298 | fetch_start_failure, | |
1299 | fetch_finish, | |
1300 | &spf); | |
1301 | ||
1302 | argv_array_clear(&spf.args); | |
88a21979 JL |
1303 | out: |
1304 | string_list_clear(&changed_submodule_paths, 1); | |
fe85ee6e | 1305 | return spf.result; |
7dce19d3 JL |
1306 | } |
1307 | ||
3bfc4504 | 1308 | unsigned is_submodule_modified(const char *path, int ignore_untracked) |
ee6fc514 | 1309 | { |
d3180279 | 1310 | struct child_process cp = CHILD_PROCESS_INIT; |
ee6fc514 | 1311 | struct strbuf buf = STRBUF_INIT; |
af6865a7 | 1312 | FILE *fp; |
c7e1a736 | 1313 | unsigned dirty_submodule = 0; |
eee49b6c | 1314 | const char *git_dir; |
af6865a7 | 1315 | int ignore_cp_exit_code = 0; |
ee6fc514 | 1316 | |
eee49b6c | 1317 | strbuf_addf(&buf, "%s/.git", path); |
13d6ec91 | 1318 | git_dir = read_gitfile(buf.buf); |
eee49b6c JL |
1319 | if (!git_dir) |
1320 | git_dir = buf.buf; | |
5c896f7c SB |
1321 | if (!is_git_directory(git_dir)) { |
1322 | if (is_directory(git_dir)) | |
1323 | die(_("'%s' not recognized as a git repository"), git_dir); | |
ee6fc514 JL |
1324 | strbuf_release(&buf); |
1325 | /* The submodule is not checked out, so it is not modified */ | |
1326 | return 0; | |
ee6fc514 JL |
1327 | } |
1328 | strbuf_reset(&buf); | |
1329 | ||
fcecf0b9 | 1330 | argv_array_pushl(&cp.args, "status", "--porcelain=2", NULL); |
3bfc4504 | 1331 | if (ignore_untracked) |
d0d7fed1 | 1332 | argv_array_push(&cp.args, "-uno"); |
3bfc4504 | 1333 | |
c12e8656 | 1334 | prepare_submodule_repo_env(&cp.env_array); |
ee6fc514 JL |
1335 | cp.git_cmd = 1; |
1336 | cp.no_stdin = 1; | |
1337 | cp.out = -1; | |
eee49b6c | 1338 | cp.dir = path; |
ee6fc514 | 1339 | if (start_command(&cp)) |
fcecf0b9 | 1340 | die("Could not run 'git status --porcelain=2' in submodule %s", path); |
ee6fc514 | 1341 | |
af6865a7 SB |
1342 | fp = xfdopen(cp.out, "r"); |
1343 | while (strbuf_getwholeline(&buf, fp, '\n') != EOF) { | |
fcecf0b9 SB |
1344 | /* regular untracked files */ |
1345 | if (buf.buf[0] == '?') | |
c7e1a736 | 1346 | dirty_submodule |= DIRTY_SUBMODULE_UNTRACKED; |
40069d6e SB |
1347 | |
1348 | if (buf.buf[0] == 'u' || | |
1349 | buf.buf[0] == '1' || | |
1350 | buf.buf[0] == '2') { | |
1351 | /* T = line type, XY = status, SSSS = submodule state */ | |
1352 | if (buf.len < strlen("T XY SSSS")) | |
1353 | die("BUG: invalid status --porcelain=2 line %s", | |
1354 | buf.buf); | |
1355 | ||
1356 | if (buf.buf[5] == 'S' && buf.buf[8] == 'U') | |
1357 | /* nested untracked file */ | |
1358 | dirty_submodule |= DIRTY_SUBMODULE_UNTRACKED; | |
1359 | ||
1360 | if (buf.buf[0] == 'u' || | |
1361 | buf.buf[0] == '2' || | |
1362 | memcmp(buf.buf + 5, "S..U", 4)) | |
1363 | /* other change */ | |
1364 | dirty_submodule |= DIRTY_SUBMODULE_MODIFIED; | |
c7e1a736 | 1365 | } |
64f9a946 SB |
1366 | |
1367 | if ((dirty_submodule & DIRTY_SUBMODULE_MODIFIED) && | |
1368 | ((dirty_submodule & DIRTY_SUBMODULE_UNTRACKED) || | |
af6865a7 SB |
1369 | ignore_untracked)) { |
1370 | /* | |
1371 | * We're not interested in any further information from | |
1372 | * the child any more, neither output nor its exit code. | |
1373 | */ | |
1374 | ignore_cp_exit_code = 1; | |
c7e1a736 | 1375 | break; |
af6865a7 | 1376 | } |
c7e1a736 | 1377 | } |
af6865a7 | 1378 | fclose(fp); |
ee6fc514 | 1379 | |
af6865a7 | 1380 | if (finish_command(&cp) && !ignore_cp_exit_code) |
fcecf0b9 | 1381 | die("'git status --porcelain=2' failed in submodule %s", path); |
ee6fc514 | 1382 | |
ee6fc514 | 1383 | strbuf_release(&buf); |
c7e1a736 | 1384 | return dirty_submodule; |
ee6fc514 | 1385 | } |
68d03e4a | 1386 | |
293ab15e JL |
1387 | int submodule_uses_gitfile(const char *path) |
1388 | { | |
d3180279 | 1389 | struct child_process cp = CHILD_PROCESS_INIT; |
293ab15e JL |
1390 | const char *argv[] = { |
1391 | "submodule", | |
1392 | "foreach", | |
1393 | "--quiet", | |
1394 | "--recursive", | |
1395 | "test -f .git", | |
1396 | NULL, | |
1397 | }; | |
1398 | struct strbuf buf = STRBUF_INIT; | |
1399 | const char *git_dir; | |
1400 | ||
1401 | strbuf_addf(&buf, "%s/.git", path); | |
1402 | git_dir = read_gitfile(buf.buf); | |
1403 | if (!git_dir) { | |
1404 | strbuf_release(&buf); | |
1405 | return 0; | |
1406 | } | |
1407 | strbuf_release(&buf); | |
1408 | ||
1409 | /* Now test that all nested submodules use a gitfile too */ | |
293ab15e | 1410 | cp.argv = argv; |
c12e8656 | 1411 | prepare_submodule_repo_env(&cp.env_array); |
293ab15e JL |
1412 | cp.git_cmd = 1; |
1413 | cp.no_stdin = 1; | |
1414 | cp.no_stderr = 1; | |
1415 | cp.no_stdout = 1; | |
1416 | cp.dir = path; | |
1417 | if (run_command(&cp)) | |
1418 | return 0; | |
1419 | ||
1420 | return 1; | |
1421 | } | |
1422 | ||
83b76966 SB |
1423 | /* |
1424 | * Check if it is a bad idea to remove a submodule, i.e. if we'd lose data | |
1425 | * when doing so. | |
1426 | * | |
1427 | * Return 1 if we'd lose data, return 0 if the removal is fine, | |
1428 | * and negative values for errors. | |
1429 | */ | |
1430 | int bad_to_remove_submodule(const char *path, unsigned flags) | |
293ab15e | 1431 | { |
293ab15e | 1432 | ssize_t len; |
d3180279 | 1433 | struct child_process cp = CHILD_PROCESS_INIT; |
293ab15e | 1434 | struct strbuf buf = STRBUF_INIT; |
83b76966 | 1435 | int ret = 0; |
293ab15e | 1436 | |
dbe44faa | 1437 | if (!file_exists(path) || is_empty_dir(path)) |
83b76966 | 1438 | return 0; |
293ab15e JL |
1439 | |
1440 | if (!submodule_uses_gitfile(path)) | |
83b76966 | 1441 | return 1; |
293ab15e | 1442 | |
83b76966 | 1443 | argv_array_pushl(&cp.args, "status", "--porcelain", |
5a1c824f | 1444 | "--ignore-submodules=none", NULL); |
83b76966 SB |
1445 | |
1446 | if (flags & SUBMODULE_REMOVAL_IGNORE_UNTRACKED) | |
1447 | argv_array_push(&cp.args, "-uno"); | |
1448 | else | |
1449 | argv_array_push(&cp.args, "-uall"); | |
1450 | ||
1451 | if (!(flags & SUBMODULE_REMOVAL_IGNORE_IGNORED_UNTRACKED)) | |
1452 | argv_array_push(&cp.args, "--ignored"); | |
293ab15e | 1453 | |
c12e8656 | 1454 | prepare_submodule_repo_env(&cp.env_array); |
293ab15e JL |
1455 | cp.git_cmd = 1; |
1456 | cp.no_stdin = 1; | |
1457 | cp.out = -1; | |
1458 | cp.dir = path; | |
83b76966 SB |
1459 | if (start_command(&cp)) { |
1460 | if (flags & SUBMODULE_REMOVAL_DIE_ON_ERROR) | |
35ad44cb | 1461 | die(_("could not start 'git status' in submodule '%s'"), |
83b76966 SB |
1462 | path); |
1463 | ret = -1; | |
1464 | goto out; | |
1465 | } | |
293ab15e JL |
1466 | |
1467 | len = strbuf_read(&buf, cp.out, 1024); | |
1468 | if (len > 2) | |
83b76966 | 1469 | ret = 1; |
293ab15e JL |
1470 | close(cp.out); |
1471 | ||
83b76966 SB |
1472 | if (finish_command(&cp)) { |
1473 | if (flags & SUBMODULE_REMOVAL_DIE_ON_ERROR) | |
35ad44cb | 1474 | die(_("could not run 'git status' in submodule '%s'"), |
83b76966 SB |
1475 | path); |
1476 | ret = -1; | |
1477 | } | |
1478 | out: | |
293ab15e | 1479 | strbuf_release(&buf); |
83b76966 | 1480 | return ret; |
293ab15e JL |
1481 | } |
1482 | ||
202275b9 SB |
1483 | static const char *get_super_prefix_or_empty(void) |
1484 | { | |
1485 | const char *s = get_super_prefix(); | |
1486 | if (!s) | |
1487 | s = ""; | |
1488 | return s; | |
1489 | } | |
1490 | ||
6e3c1595 SB |
1491 | static int submodule_has_dirty_index(const struct submodule *sub) |
1492 | { | |
1493 | struct child_process cp = CHILD_PROCESS_INIT; | |
1494 | ||
da27bc81 | 1495 | prepare_submodule_repo_env(&cp.env_array); |
6e3c1595 SB |
1496 | |
1497 | cp.git_cmd = 1; | |
1498 | argv_array_pushl(&cp.args, "diff-index", "--quiet", | |
1499 | "--cached", "HEAD", NULL); | |
1500 | cp.no_stdin = 1; | |
1501 | cp.no_stdout = 1; | |
1502 | cp.dir = sub->path; | |
1503 | if (start_command(&cp)) | |
1504 | die("could not recurse into submodule '%s'", sub->path); | |
1505 | ||
1506 | return finish_command(&cp); | |
1507 | } | |
1508 | ||
1509 | static void submodule_reset_index(const char *path) | |
1510 | { | |
1511 | struct child_process cp = CHILD_PROCESS_INIT; | |
da27bc81 | 1512 | prepare_submodule_repo_env(&cp.env_array); |
6e3c1595 SB |
1513 | |
1514 | cp.git_cmd = 1; | |
1515 | cp.no_stdin = 1; | |
1516 | cp.dir = path; | |
1517 | ||
1518 | argv_array_pushf(&cp.args, "--super-prefix=%s%s/", | |
1519 | get_super_prefix_or_empty(), path); | |
1520 | argv_array_pushl(&cp.args, "read-tree", "-u", "--reset", NULL); | |
1521 | ||
1522 | argv_array_push(&cp.args, EMPTY_TREE_SHA1_HEX); | |
1523 | ||
1524 | if (run_command(&cp)) | |
1525 | die("could not reset submodule index"); | |
1526 | } | |
1527 | ||
1528 | /** | |
1529 | * Moves a submodule at a given path from a given head to another new head. | |
1530 | * For edge cases (a submodule coming into existence or removing a submodule) | |
1531 | * pass NULL for old or new respectively. | |
1532 | */ | |
1533 | int submodule_move_head(const char *path, | |
1534 | const char *old, | |
1535 | const char *new, | |
1536 | unsigned flags) | |
1537 | { | |
1538 | int ret = 0; | |
1539 | struct child_process cp = CHILD_PROCESS_INIT; | |
1540 | const struct submodule *sub; | |
f2d48994 | 1541 | int *error_code_ptr, error_code; |
6e3c1595 | 1542 | |
627d9342 | 1543 | if (!is_submodule_active(the_repository, path)) |
823bab09 SB |
1544 | return 0; |
1545 | ||
f2d48994 SB |
1546 | if (flags & SUBMODULE_MOVE_HEAD_FORCE) |
1547 | /* | |
1548 | * Pass non NULL pointer to is_submodule_populated_gently | |
1549 | * to prevent die()-ing. We'll use connect_work_tree_and_git_dir | |
1550 | * to fixup the submodule in the force case later. | |
1551 | */ | |
1552 | error_code_ptr = &error_code; | |
1553 | else | |
1554 | error_code_ptr = NULL; | |
1555 | ||
1556 | if (old && !is_submodule_populated_gently(path, error_code_ptr)) | |
1557 | return 0; | |
6e3c1595 SB |
1558 | |
1559 | sub = submodule_from_path(null_sha1, path); | |
1560 | ||
1561 | if (!sub) | |
1562 | die("BUG: could not get submodule information for '%s'", path); | |
1563 | ||
1564 | if (old && !(flags & SUBMODULE_MOVE_HEAD_FORCE)) { | |
1565 | /* Check if the submodule has a dirty index. */ | |
1566 | if (submodule_has_dirty_index(sub)) | |
1567 | return error(_("submodule '%s' has dirty index"), path); | |
1568 | } | |
1569 | ||
1570 | if (!(flags & SUBMODULE_MOVE_HEAD_DRY_RUN)) { | |
1571 | if (old) { | |
1572 | if (!submodule_uses_gitfile(path)) | |
1573 | absorb_git_dir_into_superproject("", path, | |
1574 | ABSORB_GITDIR_RECURSE_SUBMODULES); | |
1575 | } else { | |
f2d48994 | 1576 | char *gitdir = xstrfmt("%s/modules/%s", |
6e3c1595 | 1577 | get_git_common_dir(), sub->name); |
f2d48994 SB |
1578 | connect_work_tree_and_git_dir(path, gitdir); |
1579 | free(gitdir); | |
6e3c1595 SB |
1580 | |
1581 | /* make sure the index is clean as well */ | |
1582 | submodule_reset_index(path); | |
1583 | } | |
f2d48994 SB |
1584 | |
1585 | if (old && (flags & SUBMODULE_MOVE_HEAD_FORCE)) { | |
1586 | char *gitdir = xstrfmt("%s/modules/%s", | |
1587 | get_git_common_dir(), sub->name); | |
1588 | connect_work_tree_and_git_dir(path, gitdir); | |
1589 | free(gitdir); | |
1590 | } | |
6e3c1595 SB |
1591 | } |
1592 | ||
da27bc81 | 1593 | prepare_submodule_repo_env(&cp.env_array); |
6e3c1595 SB |
1594 | |
1595 | cp.git_cmd = 1; | |
1596 | cp.no_stdin = 1; | |
1597 | cp.dir = path; | |
1598 | ||
1599 | argv_array_pushf(&cp.args, "--super-prefix=%s%s/", | |
1600 | get_super_prefix_or_empty(), path); | |
218c8837 | 1601 | argv_array_pushl(&cp.args, "read-tree", "--recurse-submodules", NULL); |
6e3c1595 SB |
1602 | |
1603 | if (flags & SUBMODULE_MOVE_HEAD_DRY_RUN) | |
1604 | argv_array_push(&cp.args, "-n"); | |
1605 | else | |
1606 | argv_array_push(&cp.args, "-u"); | |
1607 | ||
1608 | if (flags & SUBMODULE_MOVE_HEAD_FORCE) | |
1609 | argv_array_push(&cp.args, "--reset"); | |
1610 | else | |
1611 | argv_array_push(&cp.args, "-m"); | |
1612 | ||
1613 | argv_array_push(&cp.args, old ? old : EMPTY_TREE_SHA1_HEX); | |
1614 | argv_array_push(&cp.args, new ? new : EMPTY_TREE_SHA1_HEX); | |
1615 | ||
1616 | if (run_command(&cp)) { | |
1617 | ret = -1; | |
1618 | goto out; | |
1619 | } | |
1620 | ||
1621 | if (!(flags & SUBMODULE_MOVE_HEAD_DRY_RUN)) { | |
1622 | if (new) { | |
a17062cf | 1623 | child_process_init(&cp); |
6e3c1595 | 1624 | /* also set the HEAD accordingly */ |
a17062cf SB |
1625 | cp.git_cmd = 1; |
1626 | cp.no_stdin = 1; | |
1627 | cp.dir = path; | |
6e3c1595 | 1628 | |
218c8837 | 1629 | prepare_submodule_repo_env(&cp.env_array); |
a17062cf | 1630 | argv_array_pushl(&cp.args, "update-ref", "HEAD", new, NULL); |
6e3c1595 | 1631 | |
a17062cf | 1632 | if (run_command(&cp)) { |
6e3c1595 SB |
1633 | ret = -1; |
1634 | goto out; | |
1635 | } | |
1636 | } else { | |
1637 | struct strbuf sb = STRBUF_INIT; | |
1638 | ||
1639 | strbuf_addf(&sb, "%s/.git", path); | |
1640 | unlink_or_warn(sb.buf); | |
1641 | strbuf_release(&sb); | |
1642 | ||
1643 | if (is_empty_dir(path)) | |
1644 | rmdir_or_warn(path); | |
1645 | } | |
1646 | } | |
1647 | out: | |
1648 | return ret; | |
1649 | } | |
1650 | ||
68d03e4a HV |
1651 | static int find_first_merges(struct object_array *result, const char *path, |
1652 | struct commit *a, struct commit *b) | |
1653 | { | |
1654 | int i, j; | |
3826902d | 1655 | struct object_array merges = OBJECT_ARRAY_INIT; |
68d03e4a HV |
1656 | struct commit *commit; |
1657 | int contains_another; | |
1658 | ||
1659 | char merged_revision[42]; | |
1660 | const char *rev_args[] = { "rev-list", "--merges", "--ancestry-path", | |
1661 | "--all", merged_revision, NULL }; | |
1662 | struct rev_info revs; | |
1663 | struct setup_revision_opt rev_opts; | |
1664 | ||
68d03e4a HV |
1665 | memset(result, 0, sizeof(struct object_array)); |
1666 | memset(&rev_opts, 0, sizeof(rev_opts)); | |
1667 | ||
1668 | /* get all revisions that merge commit a */ | |
1a168e5c | 1669 | xsnprintf(merged_revision, sizeof(merged_revision), "^%s", |
f2fd0760 | 1670 | oid_to_hex(&a->object.oid)); |
68d03e4a HV |
1671 | init_revisions(&revs, NULL); |
1672 | rev_opts.submodule = path; | |
94c0cc8f | 1673 | setup_revisions(ARRAY_SIZE(rev_args)-1, rev_args, &revs, &rev_opts); |
68d03e4a HV |
1674 | |
1675 | /* save all revisions from the above list that contain b */ | |
1676 | if (prepare_revision_walk(&revs)) | |
1677 | die("revision walk setup failed"); | |
1678 | while ((commit = get_revision(&revs)) != NULL) { | |
1679 | struct object *o = &(commit->object); | |
a20efee9 | 1680 | if (in_merge_bases(b, commit)) |
68d03e4a HV |
1681 | add_object_array(o, NULL, &merges); |
1682 | } | |
bcc0a3ea | 1683 | reset_revision_walk(); |
68d03e4a HV |
1684 | |
1685 | /* Now we've got all merges that contain a and b. Prune all | |
1686 | * merges that contain another found merge and save them in | |
1687 | * result. | |
1688 | */ | |
1689 | for (i = 0; i < merges.nr; i++) { | |
1690 | struct commit *m1 = (struct commit *) merges.objects[i].item; | |
1691 | ||
1692 | contains_another = 0; | |
1693 | for (j = 0; j < merges.nr; j++) { | |
1694 | struct commit *m2 = (struct commit *) merges.objects[j].item; | |
a20efee9 | 1695 | if (i != j && in_merge_bases(m2, m1)) { |
68d03e4a HV |
1696 | contains_another = 1; |
1697 | break; | |
1698 | } | |
1699 | } | |
1700 | ||
1701 | if (!contains_another) | |
5de0c015 | 1702 | add_object_array(merges.objects[i].item, NULL, result); |
68d03e4a HV |
1703 | } |
1704 | ||
1705 | free(merges.objects); | |
1706 | return result->nr; | |
1707 | } | |
1708 | ||
1709 | static void print_commit(struct commit *commit) | |
1710 | { | |
1711 | struct strbuf sb = STRBUF_INIT; | |
1712 | struct pretty_print_context ctx = {0}; | |
a5481a6c | 1713 | ctx.date_mode.type = DATE_NORMAL; |
68d03e4a HV |
1714 | format_commit_message(commit, " %h: %m %s", &sb, &ctx); |
1715 | fprintf(stderr, "%s\n", sb.buf); | |
1716 | strbuf_release(&sb); | |
1717 | } | |
1718 | ||
1719 | #define MERGE_WARNING(path, msg) \ | |
1720 | warning("Failed to merge submodule %s (%s)", path, msg); | |
1721 | ||
71f35d5c | 1722 | int merge_submodule(struct object_id *result, const char *path, |
1723 | const struct object_id *base, const struct object_id *a, | |
1724 | const struct object_id *b, int search) | |
68d03e4a HV |
1725 | { |
1726 | struct commit *commit_base, *commit_a, *commit_b; | |
1727 | int parent_count; | |
1728 | struct object_array merges; | |
1729 | ||
1730 | int i; | |
1731 | ||
1732 | /* store a in result in case we fail */ | |
71f35d5c | 1733 | oidcpy(result, a); |
68d03e4a HV |
1734 | |
1735 | /* we can not handle deletion conflicts */ | |
71f35d5c | 1736 | if (is_null_oid(base)) |
68d03e4a | 1737 | return 0; |
71f35d5c | 1738 | if (is_null_oid(a)) |
68d03e4a | 1739 | return 0; |
71f35d5c | 1740 | if (is_null_oid(b)) |
68d03e4a HV |
1741 | return 0; |
1742 | ||
1743 | if (add_submodule_odb(path)) { | |
1744 | MERGE_WARNING(path, "not checked out"); | |
1745 | return 0; | |
1746 | } | |
1747 | ||
1748 | if (!(commit_base = lookup_commit_reference(base)) || | |
1749 | !(commit_a = lookup_commit_reference(a)) || | |
1750 | !(commit_b = lookup_commit_reference(b))) { | |
1751 | MERGE_WARNING(path, "commits not present"); | |
1752 | return 0; | |
1753 | } | |
1754 | ||
1755 | /* check whether both changes are forward */ | |
a20efee9 JH |
1756 | if (!in_merge_bases(commit_base, commit_a) || |
1757 | !in_merge_bases(commit_base, commit_b)) { | |
68d03e4a HV |
1758 | MERGE_WARNING(path, "commits don't follow merge-base"); |
1759 | return 0; | |
1760 | } | |
1761 | ||
1762 | /* Case #1: a is contained in b or vice versa */ | |
a20efee9 | 1763 | if (in_merge_bases(commit_a, commit_b)) { |
71f35d5c | 1764 | oidcpy(result, b); |
68d03e4a HV |
1765 | return 1; |
1766 | } | |
a20efee9 | 1767 | if (in_merge_bases(commit_b, commit_a)) { |
71f35d5c | 1768 | oidcpy(result, a); |
68d03e4a HV |
1769 | return 1; |
1770 | } | |
1771 | ||
1772 | /* | |
1773 | * Case #2: There are one or more merges that contain a and b in | |
1774 | * the submodule. If there is only one, then present it as a | |
1775 | * suggestion to the user, but leave it marked unmerged so the | |
1776 | * user needs to confirm the resolution. | |
1777 | */ | |
1778 | ||
80988783 BK |
1779 | /* Skip the search if makes no sense to the calling context. */ |
1780 | if (!search) | |
1781 | return 0; | |
1782 | ||
68d03e4a HV |
1783 | /* find commit which merges them */ |
1784 | parent_count = find_first_merges(&merges, path, commit_a, commit_b); | |
1785 | switch (parent_count) { | |
1786 | case 0: | |
1787 | MERGE_WARNING(path, "merge following commits not found"); | |
1788 | break; | |
1789 | ||
1790 | case 1: | |
1791 | MERGE_WARNING(path, "not fast-forward"); | |
1792 | fprintf(stderr, "Found a possible merge resolution " | |
1793 | "for the submodule:\n"); | |
1794 | print_commit((struct commit *) merges.objects[0].item); | |
1795 | fprintf(stderr, | |
1796 | "If this is correct simply add it to the index " | |
1797 | "for example\n" | |
1798 | "by using:\n\n" | |
1799 | " git update-index --cacheinfo 160000 %s \"%s\"\n\n" | |
1800 | "which will accept this suggestion.\n", | |
f2fd0760 | 1801 | oid_to_hex(&merges.objects[0].item->oid), path); |
68d03e4a HV |
1802 | break; |
1803 | ||
1804 | default: | |
1805 | MERGE_WARNING(path, "multiple merges found"); | |
1806 | for (i = 0; i < merges.nr; i++) | |
1807 | print_commit((struct commit *) merges.objects[i].item); | |
1808 | } | |
1809 | ||
1810 | free(merges.objects); | |
1811 | return 0; | |
1812 | } | |
a88c915d | 1813 | |
f6f85861 SB |
1814 | /* |
1815 | * Embeds a single submodules git directory into the superprojects git dir, | |
1816 | * non recursively. | |
1817 | */ | |
1818 | static void relocate_single_git_dir_into_superproject(const char *prefix, | |
1819 | const char *path) | |
1820 | { | |
1821 | char *old_git_dir = NULL, *real_old_git_dir = NULL, *real_new_git_dir = NULL; | |
1822 | const char *new_git_dir; | |
1823 | const struct submodule *sub; | |
1824 | ||
1825 | if (submodule_uses_worktrees(path)) | |
1826 | die(_("relocate_gitdir for submodule '%s' with " | |
1827 | "more than one worktree not supported"), path); | |
1828 | ||
1829 | old_git_dir = xstrfmt("%s/.git", path); | |
1830 | if (read_gitfile(old_git_dir)) | |
1831 | /* If it is an actual gitfile, it doesn't need migration. */ | |
1832 | return; | |
1833 | ||
ce83eadd | 1834 | real_old_git_dir = real_pathdup(old_git_dir, 1); |
f6f85861 SB |
1835 | |
1836 | sub = submodule_from_path(null_sha1, path); | |
1837 | if (!sub) | |
1838 | die(_("could not lookup name for submodule '%s'"), path); | |
1839 | ||
1840 | new_git_dir = git_path("modules/%s", sub->name); | |
1841 | if (safe_create_leading_directories_const(new_git_dir) < 0) | |
1842 | die(_("could not create directory '%s'"), new_git_dir); | |
ce83eadd | 1843 | real_new_git_dir = real_pathdup(new_git_dir, 1); |
f6f85861 | 1844 | |
f6f85861 | 1845 | fprintf(stderr, _("Migrating git directory of '%s%s' from\n'%s' to\n'%s'\n"), |
202275b9 | 1846 | get_super_prefix_or_empty(), path, |
f6f85861 SB |
1847 | real_old_git_dir, real_new_git_dir); |
1848 | ||
1849 | relocate_gitdir(path, real_old_git_dir, real_new_git_dir); | |
1850 | ||
1851 | free(old_git_dir); | |
1852 | free(real_old_git_dir); | |
1853 | free(real_new_git_dir); | |
1854 | } | |
1855 | ||
1856 | /* | |
1857 | * Migrate the git directory of the submodule given by path from | |
1858 | * having its git directory within the working tree to the git dir nested | |
1859 | * in its superprojects git dir under modules/. | |
1860 | */ | |
1861 | void absorb_git_dir_into_superproject(const char *prefix, | |
1862 | const char *path, | |
1863 | unsigned flags) | |
1864 | { | |
ec9629b3 SB |
1865 | int err_code; |
1866 | const char *sub_git_dir; | |
f6f85861 | 1867 | struct strbuf gitdir = STRBUF_INIT; |
f6f85861 | 1868 | strbuf_addf(&gitdir, "%s/.git", path); |
ec9629b3 | 1869 | sub_git_dir = resolve_gitdir_gently(gitdir.buf, &err_code); |
f6f85861 SB |
1870 | |
1871 | /* Not populated? */ | |
ec9629b3 | 1872 | if (!sub_git_dir) { |
ec9629b3 SB |
1873 | const struct submodule *sub; |
1874 | ||
1875 | if (err_code == READ_GITFILE_ERR_STAT_FAILED) { | |
1876 | /* unpopulated as expected */ | |
1877 | strbuf_release(&gitdir); | |
1878 | return; | |
1879 | } | |
1880 | ||
1881 | if (err_code != READ_GITFILE_ERR_NOT_A_REPO) | |
1882 | /* We don't know what broke here. */ | |
1883 | read_gitfile_error_die(err_code, path, NULL); | |
1884 | ||
1885 | /* | |
1886 | * Maybe populated, but no git directory was found? | |
1887 | * This can happen if the superproject is a submodule | |
1888 | * itself and was just absorbed. The absorption of the | |
1889 | * superproject did not rewrite the git file links yet, | |
1890 | * fix it now. | |
1891 | */ | |
1892 | sub = submodule_from_path(null_sha1, path); | |
1893 | if (!sub) | |
1894 | die(_("could not lookup name for submodule '%s'"), path); | |
365444a6 SB |
1895 | connect_work_tree_and_git_dir(path, |
1896 | git_path("modules/%s", sub->name)); | |
ec9629b3 SB |
1897 | } else { |
1898 | /* Is it already absorbed into the superprojects git dir? */ | |
ce83eadd JS |
1899 | char *real_sub_git_dir = real_pathdup(sub_git_dir, 1); |
1900 | char *real_common_git_dir = real_pathdup(get_git_common_dir(), 1); | |
f6f85861 | 1901 | |
ec9629b3 SB |
1902 | if (!starts_with(real_sub_git_dir, real_common_git_dir)) |
1903 | relocate_single_git_dir_into_superproject(prefix, path); | |
1904 | ||
1905 | free(real_sub_git_dir); | |
1906 | free(real_common_git_dir); | |
1907 | } | |
1908 | strbuf_release(&gitdir); | |
f6f85861 SB |
1909 | |
1910 | if (flags & ABSORB_GITDIR_RECURSE_SUBMODULES) { | |
1911 | struct child_process cp = CHILD_PROCESS_INIT; | |
1912 | struct strbuf sb = STRBUF_INIT; | |
1913 | ||
1914 | if (flags & ~ABSORB_GITDIR_RECURSE_SUBMODULES) | |
1915 | die("BUG: we don't know how to pass the flags down?"); | |
1916 | ||
202275b9 | 1917 | strbuf_addstr(&sb, get_super_prefix_or_empty()); |
f6f85861 SB |
1918 | strbuf_addstr(&sb, path); |
1919 | strbuf_addch(&sb, '/'); | |
1920 | ||
1921 | cp.dir = path; | |
1922 | cp.git_cmd = 1; | |
1923 | cp.no_stdin = 1; | |
1924 | argv_array_pushl(&cp.args, "--super-prefix", sb.buf, | |
1925 | "submodule--helper", | |
1926 | "absorb-git-dirs", NULL); | |
1927 | prepare_submodule_repo_env(&cp.env_array); | |
1928 | if (run_command(&cp)) | |
1929 | die(_("could not recurse into submodule '%s'"), path); | |
1930 | ||
1931 | strbuf_release(&sb); | |
1932 | } | |
f6f85861 | 1933 | } |
bf0231c6 SB |
1934 | |
1935 | const char *get_superproject_working_tree(void) | |
1936 | { | |
1937 | struct child_process cp = CHILD_PROCESS_INIT; | |
1938 | struct strbuf sb = STRBUF_INIT; | |
1939 | const char *one_up = real_path_if_valid("../"); | |
1940 | const char *cwd = xgetcwd(); | |
1941 | const char *ret = NULL; | |
1942 | const char *subpath; | |
1943 | int code; | |
1944 | ssize_t len; | |
1945 | ||
1946 | if (!is_inside_work_tree()) | |
1947 | /* | |
1948 | * FIXME: | |
1949 | * We might have a superproject, but it is harder | |
1950 | * to determine. | |
1951 | */ | |
1952 | return NULL; | |
1953 | ||
1954 | if (!one_up) | |
1955 | return NULL; | |
1956 | ||
1957 | subpath = relative_path(cwd, one_up, &sb); | |
1958 | ||
1959 | prepare_submodule_repo_env(&cp.env_array); | |
1960 | argv_array_pop(&cp.env_array); | |
1961 | ||
1962 | argv_array_pushl(&cp.args, "--literal-pathspecs", "-C", "..", | |
1963 | "ls-files", "-z", "--stage", "--full-name", "--", | |
1964 | subpath, NULL); | |
1965 | strbuf_reset(&sb); | |
1966 | ||
1967 | cp.no_stdin = 1; | |
1968 | cp.no_stderr = 1; | |
1969 | cp.out = -1; | |
1970 | cp.git_cmd = 1; | |
1971 | ||
1972 | if (start_command(&cp)) | |
1973 | die(_("could not start ls-files in ..")); | |
1974 | ||
1975 | len = strbuf_read(&sb, cp.out, PATH_MAX); | |
1976 | close(cp.out); | |
1977 | ||
1978 | if (starts_with(sb.buf, "160000")) { | |
1979 | int super_sub_len; | |
1980 | int cwd_len = strlen(cwd); | |
1981 | char *super_sub, *super_wt; | |
1982 | ||
1983 | /* | |
1984 | * There is a superproject having this repo as a submodule. | |
1985 | * The format is <mode> SP <hash> SP <stage> TAB <full name> \0, | |
1986 | * We're only interested in the name after the tab. | |
1987 | */ | |
1988 | super_sub = strchr(sb.buf, '\t') + 1; | |
1989 | super_sub_len = sb.buf + sb.len - super_sub - 1; | |
1990 | ||
1991 | if (super_sub_len > cwd_len || | |
1992 | strcmp(&cwd[cwd_len - super_sub_len], super_sub)) | |
1993 | die (_("BUG: returned path string doesn't match cwd?")); | |
1994 | ||
1995 | super_wt = xstrdup(cwd); | |
1996 | super_wt[cwd_len - super_sub_len] = '\0'; | |
1997 | ||
1998 | ret = real_path(super_wt); | |
1999 | free(super_wt); | |
2000 | } | |
2001 | strbuf_release(&sb); | |
2002 | ||
2003 | code = finish_command(&cp); | |
2004 | ||
2005 | if (code == 128) | |
2006 | /* '../' is not a git repository */ | |
2007 | return NULL; | |
2008 | if (code == 0 && len == 0) | |
2009 | /* There is an unrelated git repository at '../' */ | |
2010 | return NULL; | |
2011 | if (code) | |
2012 | die(_("ls-tree returned unexpected return code %d"), code); | |
2013 | ||
2014 | return ret; | |
2015 | } | |
bbbb7de7 NTND |
2016 | |
2017 | int submodule_to_gitdir(struct strbuf *buf, const char *submodule) | |
2018 | { | |
2019 | const struct submodule *sub; | |
2020 | const char *git_dir; | |
2021 | int ret = 0; | |
2022 | ||
2023 | strbuf_reset(buf); | |
2024 | strbuf_addstr(buf, submodule); | |
2025 | strbuf_complete(buf, '/'); | |
2026 | strbuf_addstr(buf, ".git"); | |
2027 | ||
2028 | git_dir = read_gitfile(buf->buf); | |
2029 | if (git_dir) { | |
2030 | strbuf_reset(buf); | |
2031 | strbuf_addstr(buf, git_dir); | |
2032 | } | |
2033 | if (!is_git_directory(buf->buf)) { | |
2034 | gitmodules_config(); | |
2035 | sub = submodule_from_path(null_sha1, submodule); | |
2036 | if (!sub) { | |
2037 | ret = -1; | |
2038 | goto cleanup; | |
2039 | } | |
2040 | strbuf_reset(buf); | |
2041 | strbuf_git_path(buf, "%s/%s", "modules", sub->name); | |
2042 | } | |
2043 | ||
2044 | cleanup: | |
2045 | return ret; | |
2046 | } |