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add: propagate --chmod errors to exit status
[thirdparty/git.git] / builtin / add.c
1 /*
2 * "git add" builtin command
3 *
4 * Copyright (C) 2006 Linus Torvalds
5 */
6 #define USE_THE_INDEX_COMPATIBILITY_MACROS
7 #include "cache.h"
8 #include "config.h"
9 #include "builtin.h"
10 #include "lockfile.h"
11 #include "dir.h"
12 #include "pathspec.h"
13 #include "exec-cmd.h"
14 #include "cache-tree.h"
15 #include "run-command.h"
16 #include "parse-options.h"
17 #include "diff.h"
18 #include "diffcore.h"
19 #include "revision.h"
20 #include "bulk-checkin.h"
21 #include "strvec.h"
22 #include "submodule.h"
23 #include "add-interactive.h"
24
25 static const char * const builtin_add_usage[] = {
26 N_("git add [<options>] [--] <pathspec>..."),
27 NULL
28 };
29 static int patch_interactive, add_interactive, edit_interactive;
30 static int take_worktree_changes;
31 static int add_renormalize;
32 static int pathspec_file_nul;
33 static const char *pathspec_from_file;
34 static int legacy_stash_p; /* support for the scripted `git stash` */
35
36 struct update_callback_data {
37 int flags;
38 int add_errors;
39 };
40
41 static int chmod_pathspec(struct pathspec *pathspec, char flip, int show_only)
42 {
43 int i, ret = 0;
44
45 for (i = 0; i < active_nr; i++) {
46 struct cache_entry *ce = active_cache[i];
47 int err;
48
49 if (pathspec && !ce_path_match(&the_index, ce, pathspec, NULL))
50 continue;
51
52 if (!show_only)
53 err = chmod_cache_entry(ce, flip);
54 else
55 err = S_ISREG(ce->ce_mode) ? 0 : -1;
56
57 if (err < 0)
58 ret = error(_("cannot chmod %cx '%s'"), flip, ce->name);
59 }
60
61 return ret;
62 }
63
64 static int fix_unmerged_status(struct diff_filepair *p,
65 struct update_callback_data *data)
66 {
67 if (p->status != DIFF_STATUS_UNMERGED)
68 return p->status;
69 if (!(data->flags & ADD_CACHE_IGNORE_REMOVAL) && !p->two->mode)
70 /*
71 * This is not an explicit add request, and the
72 * path is missing from the working tree (deleted)
73 */
74 return DIFF_STATUS_DELETED;
75 else
76 /*
77 * Either an explicit add request, or path exists
78 * in the working tree. An attempt to explicitly
79 * add a path that does not exist in the working tree
80 * will be caught as an error by the caller immediately.
81 */
82 return DIFF_STATUS_MODIFIED;
83 }
84
85 static void update_callback(struct diff_queue_struct *q,
86 struct diff_options *opt, void *cbdata)
87 {
88 int i;
89 struct update_callback_data *data = cbdata;
90
91 for (i = 0; i < q->nr; i++) {
92 struct diff_filepair *p = q->queue[i];
93 const char *path = p->one->path;
94 switch (fix_unmerged_status(p, data)) {
95 default:
96 die(_("unexpected diff status %c"), p->status);
97 case DIFF_STATUS_MODIFIED:
98 case DIFF_STATUS_TYPE_CHANGED:
99 if (add_file_to_index(&the_index, path, data->flags)) {
100 if (!(data->flags & ADD_CACHE_IGNORE_ERRORS))
101 die(_("updating files failed"));
102 data->add_errors++;
103 }
104 break;
105 case DIFF_STATUS_DELETED:
106 if (data->flags & ADD_CACHE_IGNORE_REMOVAL)
107 break;
108 if (!(data->flags & ADD_CACHE_PRETEND))
109 remove_file_from_index(&the_index, path);
110 if (data->flags & (ADD_CACHE_PRETEND|ADD_CACHE_VERBOSE))
111 printf(_("remove '%s'\n"), path);
112 break;
113 }
114 }
115 }
116
117 int add_files_to_cache(const char *prefix,
118 const struct pathspec *pathspec, int flags)
119 {
120 struct update_callback_data data;
121 struct rev_info rev;
122
123 memset(&data, 0, sizeof(data));
124 data.flags = flags;
125
126 repo_init_revisions(the_repository, &rev, prefix);
127 setup_revisions(0, NULL, &rev, NULL);
128 if (pathspec)
129 copy_pathspec(&rev.prune_data, pathspec);
130 rev.diffopt.output_format = DIFF_FORMAT_CALLBACK;
131 rev.diffopt.format_callback = update_callback;
132 rev.diffopt.format_callback_data = &data;
133 rev.diffopt.flags.override_submodule_config = 1;
134 rev.max_count = 0; /* do not compare unmerged paths with stage #2 */
135 run_diff_files(&rev, DIFF_RACY_IS_MODIFIED);
136 clear_pathspec(&rev.prune_data);
137 return !!data.add_errors;
138 }
139
140 static int renormalize_tracked_files(const struct pathspec *pathspec, int flags)
141 {
142 int i, retval = 0;
143
144 for (i = 0; i < active_nr; i++) {
145 struct cache_entry *ce = active_cache[i];
146
147 if (ce_stage(ce))
148 continue; /* do not touch unmerged paths */
149 if (!S_ISREG(ce->ce_mode) && !S_ISLNK(ce->ce_mode))
150 continue; /* do not touch non blobs */
151 if (pathspec && !ce_path_match(&the_index, ce, pathspec, NULL))
152 continue;
153 retval |= add_file_to_cache(ce->name, flags | ADD_CACHE_RENORMALIZE);
154 }
155
156 return retval;
157 }
158
159 static char *prune_directory(struct dir_struct *dir, struct pathspec *pathspec, int prefix)
160 {
161 char *seen;
162 int i;
163 struct dir_entry **src, **dst;
164
165 seen = xcalloc(pathspec->nr, 1);
166
167 src = dst = dir->entries;
168 i = dir->nr;
169 while (--i >= 0) {
170 struct dir_entry *entry = *src++;
171 if (dir_path_match(&the_index, entry, pathspec, prefix, seen))
172 *dst++ = entry;
173 }
174 dir->nr = dst - dir->entries;
175 add_pathspec_matches_against_index(pathspec, &the_index, seen);
176 return seen;
177 }
178
179 static void refresh(int verbose, const struct pathspec *pathspec)
180 {
181 char *seen;
182 int i;
183
184 seen = xcalloc(pathspec->nr, 1);
185 refresh_index(&the_index, verbose ? REFRESH_IN_PORCELAIN : REFRESH_QUIET,
186 pathspec, seen, _("Unstaged changes after refreshing the index:"));
187 for (i = 0; i < pathspec->nr; i++) {
188 if (!seen[i])
189 die(_("pathspec '%s' did not match any files"),
190 pathspec->items[i].match);
191 }
192 free(seen);
193 }
194
195 int run_add_interactive(const char *revision, const char *patch_mode,
196 const struct pathspec *pathspec)
197 {
198 int status, i;
199 struct strvec argv = STRVEC_INIT;
200 int use_builtin_add_i =
201 git_env_bool("GIT_TEST_ADD_I_USE_BUILTIN", -1);
202
203 if (use_builtin_add_i < 0) {
204 int experimental;
205 if (!git_config_get_bool("add.interactive.usebuiltin",
206 &use_builtin_add_i))
207 ; /* ok */
208 else if (!git_config_get_bool("feature.experimental", &experimental) &&
209 experimental)
210 use_builtin_add_i = 1;
211 }
212
213 if (use_builtin_add_i == 1) {
214 enum add_p_mode mode;
215
216 if (!patch_mode)
217 return !!run_add_i(the_repository, pathspec);
218
219 if (!strcmp(patch_mode, "--patch"))
220 mode = ADD_P_ADD;
221 else if (!strcmp(patch_mode, "--patch=stash"))
222 mode = ADD_P_STASH;
223 else if (!strcmp(patch_mode, "--patch=reset"))
224 mode = ADD_P_RESET;
225 else if (!strcmp(patch_mode, "--patch=checkout"))
226 mode = ADD_P_CHECKOUT;
227 else if (!strcmp(patch_mode, "--patch=worktree"))
228 mode = ADD_P_WORKTREE;
229 else
230 die("'%s' not supported", patch_mode);
231
232 return !!run_add_p(the_repository, mode, revision, pathspec);
233 }
234
235 strvec_push(&argv, "add--interactive");
236 if (patch_mode)
237 strvec_push(&argv, patch_mode);
238 if (revision)
239 strvec_push(&argv, revision);
240 strvec_push(&argv, "--");
241 for (i = 0; i < pathspec->nr; i++)
242 /* pass original pathspec, to be re-parsed */
243 strvec_push(&argv, pathspec->items[i].original);
244
245 status = run_command_v_opt(argv.v, RUN_GIT_CMD);
246 strvec_clear(&argv);
247 return status;
248 }
249
250 int interactive_add(const char **argv, const char *prefix, int patch)
251 {
252 struct pathspec pathspec;
253
254 parse_pathspec(&pathspec, 0,
255 PATHSPEC_PREFER_FULL |
256 PATHSPEC_SYMLINK_LEADING_PATH |
257 PATHSPEC_PREFIX_ORIGIN,
258 prefix, argv);
259
260 return run_add_interactive(NULL,
261 patch ? "--patch" : NULL,
262 &pathspec);
263 }
264
265 static int edit_patch(int argc, const char **argv, const char *prefix)
266 {
267 char *file = git_pathdup("ADD_EDIT.patch");
268 const char *apply_argv[] = { "apply", "--recount", "--cached",
269 NULL, NULL };
270 struct child_process child = CHILD_PROCESS_INIT;
271 struct rev_info rev;
272 int out;
273 struct stat st;
274
275 apply_argv[3] = file;
276
277 git_config(git_diff_basic_config, NULL); /* no "diff" UI options */
278
279 if (read_cache() < 0)
280 die(_("Could not read the index"));
281
282 repo_init_revisions(the_repository, &rev, prefix);
283 rev.diffopt.context = 7;
284
285 argc = setup_revisions(argc, argv, &rev, NULL);
286 rev.diffopt.output_format = DIFF_FORMAT_PATCH;
287 rev.diffopt.use_color = 0;
288 rev.diffopt.flags.ignore_dirty_submodules = 1;
289 out = open(file, O_CREAT | O_WRONLY | O_TRUNC, 0666);
290 if (out < 0)
291 die(_("Could not open '%s' for writing."), file);
292 rev.diffopt.file = xfdopen(out, "w");
293 rev.diffopt.close_file = 1;
294 if (run_diff_files(&rev, 0))
295 die(_("Could not write patch"));
296
297 if (launch_editor(file, NULL, NULL))
298 die(_("editing patch failed"));
299
300 if (stat(file, &st))
301 die_errno(_("Could not stat '%s'"), file);
302 if (!st.st_size)
303 die(_("Empty patch. Aborted."));
304
305 child.git_cmd = 1;
306 child.argv = apply_argv;
307 if (run_command(&child))
308 die(_("Could not apply '%s'"), file);
309
310 unlink(file);
311 free(file);
312 return 0;
313 }
314
315 static const char ignore_error[] =
316 N_("The following paths are ignored by one of your .gitignore files:\n");
317
318 static int verbose, show_only, ignored_too, refresh_only;
319 static int ignore_add_errors, intent_to_add, ignore_missing;
320 static int warn_on_embedded_repo = 1;
321
322 #define ADDREMOVE_DEFAULT 1
323 static int addremove = ADDREMOVE_DEFAULT;
324 static int addremove_explicit = -1; /* unspecified */
325
326 static char *chmod_arg;
327
328 static int ignore_removal_cb(const struct option *opt, const char *arg, int unset)
329 {
330 /* if we are told to ignore, we are not adding removals */
331 *(int *)opt->value = !unset ? 0 : 1;
332 return 0;
333 }
334
335 static struct option builtin_add_options[] = {
336 OPT__DRY_RUN(&show_only, N_("dry run")),
337 OPT__VERBOSE(&verbose, N_("be verbose")),
338 OPT_GROUP(""),
339 OPT_BOOL('i', "interactive", &add_interactive, N_("interactive picking")),
340 OPT_BOOL('p', "patch", &patch_interactive, N_("select hunks interactively")),
341 OPT_BOOL('e', "edit", &edit_interactive, N_("edit current diff and apply")),
342 OPT__FORCE(&ignored_too, N_("allow adding otherwise ignored files"), 0),
343 OPT_BOOL('u', "update", &take_worktree_changes, N_("update tracked files")),
344 OPT_BOOL(0, "renormalize", &add_renormalize, N_("renormalize EOL of tracked files (implies -u)")),
345 OPT_BOOL('N', "intent-to-add", &intent_to_add, N_("record only the fact that the path will be added later")),
346 OPT_BOOL('A', "all", &addremove_explicit, N_("add changes from all tracked and untracked files")),
347 OPT_CALLBACK_F(0, "ignore-removal", &addremove_explicit,
348 NULL /* takes no arguments */,
349 N_("ignore paths removed in the working tree (same as --no-all)"),
350 PARSE_OPT_NOARG, ignore_removal_cb),
351 OPT_BOOL( 0 , "refresh", &refresh_only, N_("don't add, only refresh the index")),
352 OPT_BOOL( 0 , "ignore-errors", &ignore_add_errors, N_("just skip files which cannot be added because of errors")),
353 OPT_BOOL( 0 , "ignore-missing", &ignore_missing, N_("check if - even missing - files are ignored in dry run")),
354 OPT_STRING(0, "chmod", &chmod_arg, "(+|-)x",
355 N_("override the executable bit of the listed files")),
356 OPT_HIDDEN_BOOL(0, "warn-embedded-repo", &warn_on_embedded_repo,
357 N_("warn when adding an embedded repository")),
358 OPT_HIDDEN_BOOL(0, "legacy-stash-p", &legacy_stash_p,
359 N_("backend for `git stash -p`")),
360 OPT_PATHSPEC_FROM_FILE(&pathspec_from_file),
361 OPT_PATHSPEC_FILE_NUL(&pathspec_file_nul),
362 OPT_END(),
363 };
364
365 static int add_config(const char *var, const char *value, void *cb)
366 {
367 if (!strcmp(var, "add.ignoreerrors") ||
368 !strcmp(var, "add.ignore-errors")) {
369 ignore_add_errors = git_config_bool(var, value);
370 return 0;
371 }
372
373 return git_default_config(var, value, cb);
374 }
375
376 static const char embedded_advice[] = N_(
377 "You've added another git repository inside your current repository.\n"
378 "Clones of the outer repository will not contain the contents of\n"
379 "the embedded repository and will not know how to obtain it.\n"
380 "If you meant to add a submodule, use:\n"
381 "\n"
382 " git submodule add <url> %s\n"
383 "\n"
384 "If you added this path by mistake, you can remove it from the\n"
385 "index with:\n"
386 "\n"
387 " git rm --cached %s\n"
388 "\n"
389 "See \"git help submodule\" for more information."
390 );
391
392 static void check_embedded_repo(const char *path)
393 {
394 struct strbuf name = STRBUF_INIT;
395
396 if (!warn_on_embedded_repo)
397 return;
398 if (!ends_with(path, "/"))
399 return;
400
401 /* Drop trailing slash for aesthetics */
402 strbuf_addstr(&name, path);
403 strbuf_strip_suffix(&name, "/");
404
405 warning(_("adding embedded git repository: %s"), name.buf);
406 if (advice_add_embedded_repo) {
407 advise(embedded_advice, name.buf, name.buf);
408 /* there may be multiple entries; advise only once */
409 advice_add_embedded_repo = 0;
410 }
411
412 strbuf_release(&name);
413 }
414
415 static int add_files(struct dir_struct *dir, int flags)
416 {
417 int i, exit_status = 0;
418
419 if (dir->ignored_nr) {
420 fprintf(stderr, _(ignore_error));
421 for (i = 0; i < dir->ignored_nr; i++)
422 fprintf(stderr, "%s\n", dir->ignored[i]->name);
423 if (advice_add_ignored_file)
424 advise(_("Use -f if you really want to add them.\n"
425 "Turn this message off by running\n"
426 "\"git config advice.addIgnoredFile false\""));
427 exit_status = 1;
428 }
429
430 for (i = 0; i < dir->nr; i++) {
431 if (add_file_to_index(&the_index, dir->entries[i]->name, flags)) {
432 if (!ignore_add_errors)
433 die(_("adding files failed"));
434 exit_status = 1;
435 } else {
436 check_embedded_repo(dir->entries[i]->name);
437 }
438 }
439 return exit_status;
440 }
441
442 int cmd_add(int argc, const char **argv, const char *prefix)
443 {
444 int exit_status = 0;
445 struct pathspec pathspec;
446 struct dir_struct dir;
447 int flags;
448 int add_new_files;
449 int require_pathspec;
450 char *seen = NULL;
451 struct lock_file lock_file = LOCK_INIT;
452
453 git_config(add_config, NULL);
454
455 argc = parse_options(argc, argv, prefix, builtin_add_options,
456 builtin_add_usage, PARSE_OPT_KEEP_ARGV0);
457 if (patch_interactive)
458 add_interactive = 1;
459 if (add_interactive) {
460 if (pathspec_from_file)
461 die(_("--pathspec-from-file is incompatible with --interactive/--patch"));
462 exit(interactive_add(argv + 1, prefix, patch_interactive));
463 }
464 if (legacy_stash_p) {
465 struct pathspec pathspec;
466
467 parse_pathspec(&pathspec, 0,
468 PATHSPEC_PREFER_FULL |
469 PATHSPEC_SYMLINK_LEADING_PATH |
470 PATHSPEC_PREFIX_ORIGIN,
471 prefix, argv);
472
473 return run_add_interactive(NULL, "--patch=stash", &pathspec);
474 }
475
476 if (edit_interactive) {
477 if (pathspec_from_file)
478 die(_("--pathspec-from-file is incompatible with --edit"));
479 return(edit_patch(argc, argv, prefix));
480 }
481 argc--;
482 argv++;
483
484 if (0 <= addremove_explicit)
485 addremove = addremove_explicit;
486 else if (take_worktree_changes && ADDREMOVE_DEFAULT)
487 addremove = 0; /* "-u" was given but not "-A" */
488
489 if (addremove && take_worktree_changes)
490 die(_("-A and -u are mutually incompatible"));
491
492 if (!show_only && ignore_missing)
493 die(_("Option --ignore-missing can only be used together with --dry-run"));
494
495 if (chmod_arg && ((chmod_arg[0] != '-' && chmod_arg[0] != '+') ||
496 chmod_arg[1] != 'x' || chmod_arg[2]))
497 die(_("--chmod param '%s' must be either -x or +x"), chmod_arg);
498
499 add_new_files = !take_worktree_changes && !refresh_only && !add_renormalize;
500 require_pathspec = !(take_worktree_changes || (0 < addremove_explicit));
501
502 hold_locked_index(&lock_file, LOCK_DIE_ON_ERROR);
503
504 /*
505 * Check the "pathspec '%s' did not match any files" block
506 * below before enabling new magic.
507 */
508 parse_pathspec(&pathspec, PATHSPEC_ATTR,
509 PATHSPEC_PREFER_FULL |
510 PATHSPEC_SYMLINK_LEADING_PATH,
511 prefix, argv);
512
513 if (pathspec_from_file) {
514 if (pathspec.nr)
515 die(_("--pathspec-from-file is incompatible with pathspec arguments"));
516
517 parse_pathspec_file(&pathspec, PATHSPEC_ATTR,
518 PATHSPEC_PREFER_FULL |
519 PATHSPEC_SYMLINK_LEADING_PATH,
520 prefix, pathspec_from_file, pathspec_file_nul);
521 } else if (pathspec_file_nul) {
522 die(_("--pathspec-file-nul requires --pathspec-from-file"));
523 }
524
525 if (require_pathspec && pathspec.nr == 0) {
526 fprintf(stderr, _("Nothing specified, nothing added.\n"));
527 if (advice_add_empty_pathspec)
528 advise( _("Maybe you wanted to say 'git add .'?\n"
529 "Turn this message off by running\n"
530 "\"git config advice.addEmptyPathspec false\""));
531 return 0;
532 }
533
534 if (!take_worktree_changes && addremove_explicit < 0 && pathspec.nr)
535 /* Turn "git add pathspec..." to "git add -A pathspec..." */
536 addremove = 1;
537
538 flags = ((verbose ? ADD_CACHE_VERBOSE : 0) |
539 (show_only ? ADD_CACHE_PRETEND : 0) |
540 (intent_to_add ? ADD_CACHE_INTENT : 0) |
541 (ignore_add_errors ? ADD_CACHE_IGNORE_ERRORS : 0) |
542 (!(addremove || take_worktree_changes)
543 ? ADD_CACHE_IGNORE_REMOVAL : 0));
544
545 if (read_cache_preload(&pathspec) < 0)
546 die(_("index file corrupt"));
547
548 die_in_unpopulated_submodule(&the_index, prefix);
549 die_path_inside_submodule(&the_index, &pathspec);
550
551 dir_init(&dir);
552 if (add_new_files) {
553 int baselen;
554
555 /* Set up the default git porcelain excludes */
556 if (!ignored_too) {
557 dir.flags |= DIR_COLLECT_IGNORED;
558 setup_standard_excludes(&dir);
559 }
560
561 /* This picks up the paths that are not tracked */
562 baselen = fill_directory(&dir, &the_index, &pathspec);
563 if (pathspec.nr)
564 seen = prune_directory(&dir, &pathspec, baselen);
565 }
566
567 if (refresh_only) {
568 refresh(verbose, &pathspec);
569 goto finish;
570 }
571
572 if (pathspec.nr) {
573 int i;
574
575 if (!seen)
576 seen = find_pathspecs_matching_against_index(&pathspec, &the_index);
577
578 /*
579 * file_exists() assumes exact match
580 */
581 GUARD_PATHSPEC(&pathspec,
582 PATHSPEC_FROMTOP |
583 PATHSPEC_LITERAL |
584 PATHSPEC_GLOB |
585 PATHSPEC_ICASE |
586 PATHSPEC_EXCLUDE);
587
588 for (i = 0; i < pathspec.nr; i++) {
589 const char *path = pathspec.items[i].match;
590 if (pathspec.items[i].magic & PATHSPEC_EXCLUDE)
591 continue;
592 if (!seen[i] && path[0] &&
593 ((pathspec.items[i].magic &
594 (PATHSPEC_GLOB | PATHSPEC_ICASE)) ||
595 !file_exists(path))) {
596 if (ignore_missing) {
597 int dtype = DT_UNKNOWN;
598 if (is_excluded(&dir, &the_index, path, &dtype))
599 dir_add_ignored(&dir, &the_index,
600 path, pathspec.items[i].len);
601 } else
602 die(_("pathspec '%s' did not match any files"),
603 pathspec.items[i].original);
604 }
605 }
606 free(seen);
607 }
608
609 plug_bulk_checkin();
610
611 if (add_renormalize)
612 exit_status |= renormalize_tracked_files(&pathspec, flags);
613 else
614 exit_status |= add_files_to_cache(prefix, &pathspec, flags);
615
616 if (add_new_files)
617 exit_status |= add_files(&dir, flags);
618
619 if (chmod_arg && pathspec.nr)
620 exit_status |= chmod_pathspec(&pathspec, chmod_arg[0], show_only);
621 unplug_bulk_checkin();
622
623 finish:
624 if (write_locked_index(&the_index, &lock_file,
625 COMMIT_LOCK | SKIP_IF_UNCHANGED))
626 die(_("Unable to write new index file"));
627
628 dir_clear(&dir);
629 UNLEAK(pathspec);
630 return exit_status;
631 }