summaryrefslogtreecommitdiff
path: root/builtin/add.c
blob: 298e0114f93166b7e3c1d3c2bc376a34afb7a671 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
/*
 * "git add" builtin command
 *
 * Copyright (C) 2006 Linus Torvalds
 */
#define USE_THE_INDEX_COMPATIBILITY_MACROS
#include "cache.h"
#include "config.h"
#include "builtin.h"
#include "lockfile.h"
#include "dir.h"
#include "pathspec.h"
#include "exec-cmd.h"
#include "cache-tree.h"
#include "run-command.h"
#include "parse-options.h"
#include "diff.h"
#include "diffcore.h"
#include "revision.h"
#include "bulk-checkin.h"
#include "argv-array.h"
#include "submodule.h"
#include "add-interactive.h"

static const char * const builtin_add_usage[] = {
	N_("git add [<options>] [--] <pathspec>..."),
	NULL
};
static int patch_interactive, add_interactive, edit_interactive;
static int take_worktree_changes;
static int add_renormalize;
static int pathspec_file_nul;
static const char *pathspec_from_file;
static int legacy_stash_p; /* support for the scripted `git stash` */

struct update_callback_data {
	int flags;
	int add_errors;
};

static void chmod_pathspec(struct pathspec *pathspec, char flip)
{
	int i;

	for (i = 0; i < active_nr; i++) {
		struct cache_entry *ce = active_cache[i];

		if (pathspec && !ce_path_match(&the_index, ce, pathspec, NULL))
			continue;

		if (chmod_cache_entry(ce, flip) < 0)
			fprintf(stderr, "cannot chmod %cx '%s'\n", flip, ce->name);
	}
}

static int fix_unmerged_status(struct diff_filepair *p,
			       struct update_callback_data *data)
{
	if (p->status != DIFF_STATUS_UNMERGED)
		return p->status;
	if (!(data->flags & ADD_CACHE_IGNORE_REMOVAL) && !p->two->mode)
		/*
		 * This is not an explicit add request, and the
		 * path is missing from the working tree (deleted)
		 */
		return DIFF_STATUS_DELETED;
	else
		/*
		 * Either an explicit add request, or path exists
		 * in the working tree.  An attempt to explicitly
		 * add a path that does not exist in the working tree
		 * will be caught as an error by the caller immediately.
		 */
		return DIFF_STATUS_MODIFIED;
}

static void update_callback(struct diff_queue_struct *q,
			    struct diff_options *opt, void *cbdata)
{
	int i;
	struct update_callback_data *data = cbdata;

	for (i = 0; i < q->nr; i++) {
		struct diff_filepair *p = q->queue[i];
		const char *path = p->one->path;
		switch (fix_unmerged_status(p, data)) {
		default:
			die(_("unexpected diff status %c"), p->status);
		case DIFF_STATUS_MODIFIED:
		case DIFF_STATUS_TYPE_CHANGED:
			if (add_file_to_index(&the_index, path,	data->flags)) {
				if (!(data->flags & ADD_CACHE_IGNORE_ERRORS))
					die(_("updating files failed"));
				data->add_errors++;
			}
			break;
		case DIFF_STATUS_DELETED:
			if (data->flags & ADD_CACHE_IGNORE_REMOVAL)
				break;
			if (!(data->flags & ADD_CACHE_PRETEND))
				remove_file_from_index(&the_index, path);
			if (data->flags & (ADD_CACHE_PRETEND|ADD_CACHE_VERBOSE))
				printf(_("remove '%s'\n"), path);
			break;
		}
	}
}

int add_files_to_cache(const char *prefix,
		       const struct pathspec *pathspec, int flags)
{
	struct update_callback_data data;
	struct rev_info rev;

	memset(&data, 0, sizeof(data));
	data.flags = flags;

	repo_init_revisions(the_repository, &rev, prefix);
	setup_revisions(0, NULL, &rev, NULL);
	if (pathspec)
		copy_pathspec(&rev.prune_data, pathspec);
	rev.diffopt.output_format = DIFF_FORMAT_CALLBACK;
	rev.diffopt.format_callback = update_callback;
	rev.diffopt.format_callback_data = &data;
	rev.diffopt.flags.override_submodule_config = 1;
	rev.max_count = 0; /* do not compare unmerged paths with stage #2 */
	run_diff_files(&rev, DIFF_RACY_IS_MODIFIED);
	clear_pathspec(&rev.prune_data);
	return !!data.add_errors;
}

static int renormalize_tracked_files(const struct pathspec *pathspec, int flags)
{
	int i, retval = 0;

	for (i = 0; i < active_nr; i++) {
		struct cache_entry *ce = active_cache[i];

		if (ce_stage(ce))
			continue; /* do not touch unmerged paths */
		if (!S_ISREG(ce->ce_mode) && !S_ISLNK(ce->ce_mode))
			continue; /* do not touch non blobs */
		if (pathspec && !ce_path_match(&the_index, ce, pathspec, NULL))
			continue;
		retval |= add_file_to_cache(ce->name, flags | ADD_CACHE_RENORMALIZE);
	}

	return retval;
}

static char *prune_directory(struct dir_struct *dir, struct pathspec *pathspec, int prefix)
{
	char *seen;
	int i;
	struct dir_entry **src, **dst;

	seen = xcalloc(pathspec->nr, 1);

	src = dst = dir->entries;
	i = dir->nr;
	while (--i >= 0) {
		struct dir_entry *entry = *src++;
		if (dir_path_match(&the_index, entry, pathspec, prefix, seen))
			*dst++ = entry;
	}
	dir->nr = dst - dir->entries;
	add_pathspec_matches_against_index(pathspec, &the_index, seen);
	return seen;
}

static void refresh(int verbose, const struct pathspec *pathspec)
{
	char *seen;
	int i;

	seen = xcalloc(pathspec->nr, 1);
	refresh_index(&the_index, verbose ? REFRESH_IN_PORCELAIN : REFRESH_QUIET,
		      pathspec, seen, _("Unstaged changes after refreshing the index:"));
	for (i = 0; i < pathspec->nr; i++) {
		if (!seen[i])
			die(_("pathspec '%s' did not match any files"),
			    pathspec->items[i].match);
	}
	free(seen);
}

int run_add_interactive(const char *revision, const char *patch_mode,
			const struct pathspec *pathspec)
{
	int status, i;
	struct argv_array argv = ARGV_ARRAY_INIT;
	int use_builtin_add_i =
		git_env_bool("GIT_TEST_ADD_I_USE_BUILTIN", -1);

	if (use_builtin_add_i < 0)
		git_config_get_bool("add.interactive.usebuiltin",
				    &use_builtin_add_i);

	if (use_builtin_add_i == 1) {
		enum add_p_mode mode;

		if (!patch_mode)
			return !!run_add_i(the_repository, pathspec);

		if (!strcmp(patch_mode, "--patch"))
			mode = ADD_P_ADD;
		else if (!strcmp(patch_mode, "--patch=stash"))
			mode = ADD_P_STASH;
		else if (!strcmp(patch_mode, "--patch=reset"))
			mode = ADD_P_RESET;
		else if (!strcmp(patch_mode, "--patch=checkout"))
			mode = ADD_P_CHECKOUT;
		else if (!strcmp(patch_mode, "--patch=worktree"))
			mode = ADD_P_WORKTREE;
		else
			die("'%s' not supported", patch_mode);

		return !!run_add_p(the_repository, mode, revision, pathspec);
	}

	argv_array_push(&argv, "add--interactive");
	if (patch_mode)
		argv_array_push(&argv, patch_mode);
	if (revision)
		argv_array_push(&argv, revision);
	argv_array_push(&argv, "--");
	for (i = 0; i < pathspec->nr; i++)
		/* pass original pathspec, to be re-parsed */
		argv_array_push(&argv, pathspec->items[i].original);

	status = run_command_v_opt(argv.argv, RUN_GIT_CMD);
	argv_array_clear(&argv);
	return status;
}

int interactive_add(int argc, const char **argv, const char *prefix, int patch)
{
	struct pathspec pathspec;

	parse_pathspec(&pathspec, 0,
		       PATHSPEC_PREFER_FULL |
		       PATHSPEC_SYMLINK_LEADING_PATH |
		       PATHSPEC_PREFIX_ORIGIN,
		       prefix, argv);

	return run_add_interactive(NULL,
				   patch ? "--patch" : NULL,
				   &pathspec);
}

static int edit_patch(int argc, const char **argv, const char *prefix)
{
	char *file = git_pathdup("ADD_EDIT.patch");
	const char *apply_argv[] = { "apply", "--recount", "--cached",
		NULL, NULL };
	struct child_process child = CHILD_PROCESS_INIT;
	struct rev_info rev;
	int out;
	struct stat st;

	apply_argv[3] = file;

	git_config(git_diff_basic_config, NULL); /* no "diff" UI options */

	if (read_cache() < 0)
		die(_("Could not read the index"));

	repo_init_revisions(the_repository, &rev, prefix);
	rev.diffopt.context = 7;

	argc = setup_revisions(argc, argv, &rev, NULL);
	rev.diffopt.output_format = DIFF_FORMAT_PATCH;
	rev.diffopt.use_color = 0;
	rev.diffopt.flags.ignore_dirty_submodules = 1;
	out = open(file, O_CREAT | O_WRONLY | O_TRUNC, 0666);
	if (out < 0)
		die(_("Could not open '%s' for writing."), file);
	rev.diffopt.file = xfdopen(out, "w");
	rev.diffopt.close_file = 1;
	if (run_diff_files(&rev, 0))
		die(_("Could not write patch"));

	if (launch_editor(file, NULL, NULL))
		die(_("editing patch failed"));

	if (stat(file, &st))
		die_errno(_("Could not stat '%s'"), file);
	if (!st.st_size)
		die(_("Empty patch. Aborted."));

	child.git_cmd = 1;
	child.argv = apply_argv;
	if (run_command(&child))
		die(_("Could not apply '%s'"), file);

	unlink(file);
	free(file);
	return 0;
}

static const char ignore_error[] =
N_("The following paths are ignored by one of your .gitignore files:\n");

static int verbose, show_only, ignored_too, refresh_only;
static int ignore_add_errors, intent_to_add, ignore_missing;
static int warn_on_embedded_repo = 1;

#define ADDREMOVE_DEFAULT 1
static int addremove = ADDREMOVE_DEFAULT;
static int addremove_explicit = -1; /* unspecified */

static char *chmod_arg;

static int ignore_removal_cb(const struct option *opt, const char *arg, int unset)
{
	/* if we are told to ignore, we are not adding removals */
	*(int *)opt->value = !unset ? 0 : 1;
	return 0;
}

static struct option builtin_add_options[] = {
	OPT__DRY_RUN(&show_only, N_("dry run")),
	OPT__VERBOSE(&verbose, N_("be verbose")),
	OPT_GROUP(""),
	OPT_BOOL('i', "interactive", &add_interactive, N_("interactive picking")),
	OPT_BOOL('p', "patch", &patch_interactive, N_("select hunks interactively")),
	OPT_BOOL('e', "edit", &edit_interactive, N_("edit current diff and apply")),
	OPT__FORCE(&ignored_too, N_("allow adding otherwise ignored files"), 0),
	OPT_BOOL('u', "update", &take_worktree_changes, N_("update tracked files")),
	OPT_BOOL(0, "renormalize", &add_renormalize, N_("renormalize EOL of tracked files (implies -u)")),
	OPT_BOOL('N', "intent-to-add", &intent_to_add, N_("record only the fact that the path will be added later")),
	OPT_BOOL('A', "all", &addremove_explicit, N_("add changes from all tracked and untracked files")),
	OPT_CALLBACK_F(0, "ignore-removal", &addremove_explicit,
	  NULL /* takes no arguments */,
	  N_("ignore paths removed in the working tree (same as --no-all)"),
	  PARSE_OPT_NOARG, ignore_removal_cb),
	OPT_BOOL( 0 , "refresh", &refresh_only, N_("don't add, only refresh the index")),
	OPT_BOOL( 0 , "ignore-errors", &ignore_add_errors, N_("just skip files which cannot be added because of errors")),
	OPT_BOOL( 0 , "ignore-missing", &ignore_missing, N_("check if - even missing - files are ignored in dry run")),
	OPT_STRING(0, "chmod", &chmod_arg, "(+|-)x",
		   N_("override the executable bit of the listed files")),
	OPT_HIDDEN_BOOL(0, "warn-embedded-repo", &warn_on_embedded_repo,
			N_("warn when adding an embedded repository")),
	OPT_HIDDEN_BOOL(0, "legacy-stash-p", &legacy_stash_p,
			N_("backend for `git stash -p`")),
	OPT_PATHSPEC_FROM_FILE(&pathspec_from_file),
	OPT_PATHSPEC_FILE_NUL(&pathspec_file_nul),
	OPT_END(),
};

static int add_config(const char *var, const char *value, void *cb)
{
	if (!strcmp(var, "add.ignoreerrors") ||
	    !strcmp(var, "add.ignore-errors")) {
		ignore_add_errors = git_config_bool(var, value);
		return 0;
	}

	return git_default_config(var, value, cb);
}

static const char embedded_advice[] = N_(
"You've added another git repository inside your current repository.\n"
"Clones of the outer repository will not contain the contents of\n"
"the embedded repository and will not know how to obtain it.\n"
"If you meant to add a submodule, use:\n"
"\n"
"	git submodule add <url> %s\n"
"\n"
"If you added this path by mistake, you can remove it from the\n"
"index with:\n"
"\n"
"	git rm --cached %s\n"
"\n"
"See \"git help submodule\" for more information."
);

static void check_embedded_repo(const char *path)
{
	struct strbuf name = STRBUF_INIT;

	if (!warn_on_embedded_repo)
		return;
	if (!ends_with(path, "/"))
		return;

	/* Drop trailing slash for aesthetics */
	strbuf_addstr(&name, path);
	strbuf_strip_suffix(&name, "/");

	warning(_("adding embedded git repository: %s"), name.buf);
	if (advice_add_embedded_repo) {
		advise(embedded_advice, name.buf, name.buf);
		/* there may be multiple entries; advise only once */
		advice_add_embedded_repo = 0;
	}

	strbuf_release(&name);
}

static int add_files(struct dir_struct *dir, int flags)
{
	int i, exit_status = 0;

	if (dir->ignored_nr) {
		fprintf(stderr, _(ignore_error));
		for (i = 0; i < dir->ignored_nr; i++)
			fprintf(stderr, "%s\n", dir->ignored[i]->name);
		if (advice_add_ignored_file)
			advise(_("Use -f if you really want to add them.\n"
				"Turn this message off by running\n"
				"\"git config advice.addIgnoredFile false\""));
		exit_status = 1;
	}

	for (i = 0; i < dir->nr; i++) {
		if (add_file_to_index(&the_index, dir->entries[i]->name, flags)) {
			if (!ignore_add_errors)
				die(_("adding files failed"));
			exit_status = 1;
		} else {
			check_embedded_repo(dir->entries[i]->name);
		}
	}
	return exit_status;
}

int cmd_add(int argc, const char **argv, const char *prefix)
{
	int exit_status = 0;
	struct pathspec pathspec;
	struct dir_struct dir;
	int flags;
	int add_new_files;
	int require_pathspec;
	char *seen = NULL;
	struct lock_file lock_file = LOCK_INIT;

	git_config(add_config, NULL);

	argc = parse_options(argc, argv, prefix, builtin_add_options,
			  builtin_add_usage, PARSE_OPT_KEEP_ARGV0);
	if (patch_interactive)
		add_interactive = 1;
	if (add_interactive) {
		if (pathspec_from_file)
			die(_("--pathspec-from-file is incompatible with --interactive/--patch"));
		exit(interactive_add(argc - 1, argv + 1, prefix, patch_interactive));
	}
	if (legacy_stash_p) {
		struct pathspec pathspec;

		parse_pathspec(&pathspec, 0,
			PATHSPEC_PREFER_FULL |
			PATHSPEC_SYMLINK_LEADING_PATH |
			PATHSPEC_PREFIX_ORIGIN,
			prefix, argv);

		return run_add_interactive(NULL, "--patch=stash", &pathspec);
	}

	if (edit_interactive) {
		if (pathspec_from_file)
			die(_("--pathspec-from-file is incompatible with --edit"));
		return(edit_patch(argc, argv, prefix));
	}
	argc--;
	argv++;

	if (0 <= addremove_explicit)
		addremove = addremove_explicit;
	else if (take_worktree_changes && ADDREMOVE_DEFAULT)
		addremove = 0; /* "-u" was given but not "-A" */

	if (addremove && take_worktree_changes)
		die(_("-A and -u are mutually incompatible"));

	if (!show_only && ignore_missing)
		die(_("Option --ignore-missing can only be used together with --dry-run"));

	if (chmod_arg && ((chmod_arg[0] != '-' && chmod_arg[0] != '+') ||
			  chmod_arg[1] != 'x' || chmod_arg[2]))
		die(_("--chmod param '%s' must be either -x or +x"), chmod_arg);

	add_new_files = !take_worktree_changes && !refresh_only && !add_renormalize;
	require_pathspec = !(take_worktree_changes || (0 < addremove_explicit));

	hold_locked_index(&lock_file, LOCK_DIE_ON_ERROR);

	/*
	 * Check the "pathspec '%s' did not match any files" block
	 * below before enabling new magic.
	 */
	parse_pathspec(&pathspec, PATHSPEC_ATTR,
		       PATHSPEC_PREFER_FULL |
		       PATHSPEC_SYMLINK_LEADING_PATH,
		       prefix, argv);

	if (pathspec_from_file) {
		if (pathspec.nr)
			die(_("--pathspec-from-file is incompatible with pathspec arguments"));

		parse_pathspec_file(&pathspec, PATHSPEC_ATTR,
				    PATHSPEC_PREFER_FULL |
				    PATHSPEC_SYMLINK_LEADING_PATH,
				    prefix, pathspec_from_file, pathspec_file_nul);
	} else if (pathspec_file_nul) {
		die(_("--pathspec-file-nul requires --pathspec-from-file"));
	}

	if (require_pathspec && pathspec.nr == 0) {
		fprintf(stderr, _("Nothing specified, nothing added.\n"));
		if (advice_add_empty_pathspec)
			advise( _("Maybe you wanted to say 'git add .'?\n"
				"Turn this message off by running\n"
				"\"git config advice.addEmptyPathspec false\""));
		return 0;
	}

	if (!take_worktree_changes && addremove_explicit < 0 && pathspec.nr)
		/* Turn "git add pathspec..." to "git add -A pathspec..." */
		addremove = 1;

	flags = ((verbose ? ADD_CACHE_VERBOSE : 0) |
		 (show_only ? ADD_CACHE_PRETEND : 0) |
		 (intent_to_add ? ADD_CACHE_INTENT : 0) |
		 (ignore_add_errors ? ADD_CACHE_IGNORE_ERRORS : 0) |
		 (!(addremove || take_worktree_changes)
		  ? ADD_CACHE_IGNORE_REMOVAL : 0));

	if (read_cache_preload(&pathspec) < 0)
		die(_("index file corrupt"));

	die_in_unpopulated_submodule(&the_index, prefix);
	die_path_inside_submodule(&the_index, &pathspec);

	if (add_new_files) {
		int baselen;

		/* Set up the default git porcelain excludes */
		memset(&dir, 0, sizeof(dir));
		if (!ignored_too) {
			dir.flags |= DIR_COLLECT_IGNORED;
			setup_standard_excludes(&dir);
		}

		/* This picks up the paths that are not tracked */
		baselen = fill_directory(&dir, &the_index, &pathspec);
		if (pathspec.nr)
			seen = prune_directory(&dir, &pathspec, baselen);
	}

	if (refresh_only) {
		refresh(verbose, &pathspec);
		goto finish;
	}

	if (pathspec.nr) {
		int i;

		if (!seen)
			seen = find_pathspecs_matching_against_index(&pathspec, &the_index);

		/*
		 * file_exists() assumes exact match
		 */
		GUARD_PATHSPEC(&pathspec,
			       PATHSPEC_FROMTOP |
			       PATHSPEC_LITERAL |
			       PATHSPEC_GLOB |
			       PATHSPEC_ICASE |
			       PATHSPEC_EXCLUDE);

		for (i = 0; i < pathspec.nr; i++) {
			const char *path = pathspec.items[i].match;
			if (pathspec.items[i].magic & PATHSPEC_EXCLUDE)
				continue;
			if (!seen[i] && path[0] &&
			    ((pathspec.items[i].magic &
			      (PATHSPEC_GLOB | PATHSPEC_ICASE)) ||
			     !file_exists(path))) {
				if (ignore_missing) {
					int dtype = DT_UNKNOWN;
					if (is_excluded(&dir, &the_index, path, &dtype))
						dir_add_ignored(&dir, &the_index,
								path, pathspec.items[i].len);
				} else
					die(_("pathspec '%s' did not match any files"),
					    pathspec.items[i].original);
			}
		}
		free(seen);
	}

	plug_bulk_checkin();

	if (add_renormalize)
		exit_status |= renormalize_tracked_files(&pathspec, flags);
	else
		exit_status |= add_files_to_cache(prefix, &pathspec, flags);

	if (add_new_files)
		exit_status |= add_files(&dir, flags);

	if (chmod_arg && pathspec.nr)
		chmod_pathspec(&pathspec, chmod_arg[0]);
	unplug_bulk_checkin();

finish:
	if (write_locked_index(&the_index, &lock_file,
			       COMMIT_LOCK | SKIP_IF_UNCHANGED))
		die(_("Unable to write new index file"));

	UNLEAK(pathspec);
	UNLEAK(dir);
	return exit_status;
}