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