stash: make sure to write refreshed cache
[git/git.git] / builtin / stash.c
1 #define USE_THE_INDEX_COMPATIBILITY_MACROS
2 #include "builtin.h"
3 #include "config.h"
4 #include "parse-options.h"
5 #include "refs.h"
6 #include "lockfile.h"
7 #include "cache-tree.h"
8 #include "unpack-trees.h"
9 #include "merge-recursive.h"
10 #include "argv-array.h"
11 #include "run-command.h"
12 #include "dir.h"
13 #include "rerere.h"
14 #include "revision.h"
15 #include "log-tree.h"
16 #include "diffcore.h"
17 #include "exec-cmd.h"
18
19 #define INCLUDE_ALL_FILES 2
20
21 static const char * const git_stash_usage[] = {
22 N_("git stash list [<options>]"),
23 N_("git stash show [<options>] [<stash>]"),
24 N_("git stash drop [-q|--quiet] [<stash>]"),
25 N_("git stash ( pop | apply ) [--index] [-q|--quiet] [<stash>]"),
26 N_("git stash branch <branchname> [<stash>]"),
27 N_("git stash clear"),
28 N_("git stash [push [-p|--patch] [-k|--[no-]keep-index] [-q|--quiet]\n"
29 " [-u|--include-untracked] [-a|--all] [-m|--message <message>]\n"
30 " [--] [<pathspec>...]]"),
31 N_("git stash save [-p|--patch] [-k|--[no-]keep-index] [-q|--quiet]\n"
32 " [-u|--include-untracked] [-a|--all] [<message>]"),
33 NULL
34 };
35
36 static const char * const git_stash_list_usage[] = {
37 N_("git stash list [<options>]"),
38 NULL
39 };
40
41 static const char * const git_stash_show_usage[] = {
42 N_("git stash show [<options>] [<stash>]"),
43 NULL
44 };
45
46 static const char * const git_stash_drop_usage[] = {
47 N_("git stash drop [-q|--quiet] [<stash>]"),
48 NULL
49 };
50
51 static const char * const git_stash_pop_usage[] = {
52 N_("git stash pop [--index] [-q|--quiet] [<stash>]"),
53 NULL
54 };
55
56 static const char * const git_stash_apply_usage[] = {
57 N_("git stash apply [--index] [-q|--quiet] [<stash>]"),
58 NULL
59 };
60
61 static const char * const git_stash_branch_usage[] = {
62 N_("git stash branch <branchname> [<stash>]"),
63 NULL
64 };
65
66 static const char * const git_stash_clear_usage[] = {
67 N_("git stash clear"),
68 NULL
69 };
70
71 static const char * const git_stash_store_usage[] = {
72 N_("git stash store [-m|--message <message>] [-q|--quiet] <commit>"),
73 NULL
74 };
75
76 static const char * const git_stash_push_usage[] = {
77 N_("git stash [push [-p|--patch] [-k|--[no-]keep-index] [-q|--quiet]\n"
78 " [-u|--include-untracked] [-a|--all] [-m|--message <message>]\n"
79 " [--] [<pathspec>...]]"),
80 NULL
81 };
82
83 static const char * const git_stash_save_usage[] = {
84 N_("git stash save [-p|--patch] [-k|--[no-]keep-index] [-q|--quiet]\n"
85 " [-u|--include-untracked] [-a|--all] [<message>]"),
86 NULL
87 };
88
89 static const char *ref_stash = "refs/stash";
90 static struct strbuf stash_index_path = STRBUF_INIT;
91
92 /*
93 * w_commit is set to the commit containing the working tree
94 * b_commit is set to the base commit
95 * i_commit is set to the commit containing the index tree
96 * u_commit is set to the commit containing the untracked files tree
97 * w_tree is set to the working tree
98 * b_tree is set to the base tree
99 * i_tree is set to the index tree
100 * u_tree is set to the untracked files tree
101 */
102 struct stash_info {
103 struct object_id w_commit;
104 struct object_id b_commit;
105 struct object_id i_commit;
106 struct object_id u_commit;
107 struct object_id w_tree;
108 struct object_id b_tree;
109 struct object_id i_tree;
110 struct object_id u_tree;
111 struct strbuf revision;
112 int is_stash_ref;
113 int has_u;
114 };
115
116 static void free_stash_info(struct stash_info *info)
117 {
118 strbuf_release(&info->revision);
119 }
120
121 static void assert_stash_like(struct stash_info *info, const char *revision)
122 {
123 if (get_oidf(&info->b_commit, "%s^1", revision) ||
124 get_oidf(&info->w_tree, "%s:", revision) ||
125 get_oidf(&info->b_tree, "%s^1:", revision) ||
126 get_oidf(&info->i_tree, "%s^2:", revision))
127 die(_("'%s' is not a stash-like commit"), revision);
128 }
129
130 static int get_stash_info(struct stash_info *info, int argc, const char **argv)
131 {
132 int ret;
133 char *end_of_rev;
134 char *expanded_ref;
135 const char *revision;
136 const char *commit = NULL;
137 struct object_id dummy;
138 struct strbuf symbolic = STRBUF_INIT;
139
140 if (argc > 1) {
141 int i;
142 struct strbuf refs_msg = STRBUF_INIT;
143
144 for (i = 0; i < argc; i++)
145 strbuf_addf(&refs_msg, " '%s'", argv[i]);
146
147 fprintf_ln(stderr, _("Too many revisions specified:%s"),
148 refs_msg.buf);
149 strbuf_release(&refs_msg);
150
151 return -1;
152 }
153
154 if (argc == 1)
155 commit = argv[0];
156
157 strbuf_init(&info->revision, 0);
158 if (!commit) {
159 if (!ref_exists(ref_stash)) {
160 free_stash_info(info);
161 fprintf_ln(stderr, _("No stash entries found."));
162 return -1;
163 }
164
165 strbuf_addf(&info->revision, "%s@{0}", ref_stash);
166 } else if (strspn(commit, "0123456789") == strlen(commit)) {
167 strbuf_addf(&info->revision, "%s@{%s}", ref_stash, commit);
168 } else {
169 strbuf_addstr(&info->revision, commit);
170 }
171
172 revision = info->revision.buf;
173
174 if (get_oid(revision, &info->w_commit)) {
175 error(_("%s is not a valid reference"), revision);
176 free_stash_info(info);
177 return -1;
178 }
179
180 assert_stash_like(info, revision);
181
182 info->has_u = !get_oidf(&info->u_tree, "%s^3:", revision);
183
184 end_of_rev = strchrnul(revision, '@');
185 strbuf_add(&symbolic, revision, end_of_rev - revision);
186
187 ret = dwim_ref(symbolic.buf, symbolic.len, &dummy, &expanded_ref);
188 strbuf_release(&symbolic);
189 switch (ret) {
190 case 0: /* Not found, but valid ref */
191 info->is_stash_ref = 0;
192 break;
193 case 1:
194 info->is_stash_ref = !strcmp(expanded_ref, ref_stash);
195 break;
196 default: /* Invalid or ambiguous */
197 free_stash_info(info);
198 }
199
200 free(expanded_ref);
201 return !(ret == 0 || ret == 1);
202 }
203
204 static int do_clear_stash(void)
205 {
206 struct object_id obj;
207 if (get_oid(ref_stash, &obj))
208 return 0;
209
210 return delete_ref(NULL, ref_stash, &obj, 0);
211 }
212
213 static int clear_stash(int argc, const char **argv, const char *prefix)
214 {
215 struct option options[] = {
216 OPT_END()
217 };
218
219 argc = parse_options(argc, argv, prefix, options,
220 git_stash_clear_usage,
221 PARSE_OPT_STOP_AT_NON_OPTION);
222
223 if (argc)
224 return error(_("git stash clear with parameters is "
225 "unimplemented"));
226
227 return do_clear_stash();
228 }
229
230 static int reset_tree(struct object_id *i_tree, int update, int reset)
231 {
232 int nr_trees = 1;
233 struct unpack_trees_options opts;
234 struct tree_desc t[MAX_UNPACK_TREES];
235 struct tree *tree;
236 struct lock_file lock_file = LOCK_INIT;
237
238 read_cache_preload(NULL);
239 if (refresh_cache(REFRESH_QUIET))
240 return -1;
241
242 hold_locked_index(&lock_file, LOCK_DIE_ON_ERROR);
243
244 memset(&opts, 0, sizeof(opts));
245
246 tree = parse_tree_indirect(i_tree);
247 if (parse_tree(tree))
248 return -1;
249
250 init_tree_desc(t, tree->buffer, tree->size);
251
252 opts.head_idx = 1;
253 opts.src_index = &the_index;
254 opts.dst_index = &the_index;
255 opts.merge = 1;
256 opts.reset = reset;
257 opts.update = update;
258 opts.fn = oneway_merge;
259
260 if (unpack_trees(nr_trees, t, &opts))
261 return -1;
262
263 if (write_locked_index(&the_index, &lock_file, COMMIT_LOCK))
264 return error(_("unable to write new index file"));
265
266 return 0;
267 }
268
269 static int diff_tree_binary(struct strbuf *out, struct object_id *w_commit)
270 {
271 struct child_process cp = CHILD_PROCESS_INIT;
272 const char *w_commit_hex = oid_to_hex(w_commit);
273
274 /*
275 * Diff-tree would not be very hard to replace with a native function,
276 * however it should be done together with apply_cached.
277 */
278 cp.git_cmd = 1;
279 argv_array_pushl(&cp.args, "diff-tree", "--binary", NULL);
280 argv_array_pushf(&cp.args, "%s^2^..%s^2", w_commit_hex, w_commit_hex);
281
282 return pipe_command(&cp, NULL, 0, out, 0, NULL, 0);
283 }
284
285 static int apply_cached(struct strbuf *out)
286 {
287 struct child_process cp = CHILD_PROCESS_INIT;
288
289 /*
290 * Apply currently only reads either from stdin or a file, thus
291 * apply_all_patches would have to be updated to optionally take a
292 * buffer.
293 */
294 cp.git_cmd = 1;
295 argv_array_pushl(&cp.args, "apply", "--cached", NULL);
296 return pipe_command(&cp, out->buf, out->len, NULL, 0, NULL, 0);
297 }
298
299 static int reset_head(void)
300 {
301 struct child_process cp = CHILD_PROCESS_INIT;
302
303 /*
304 * Reset is overall quite simple, however there is no current public
305 * API for resetting.
306 */
307 cp.git_cmd = 1;
308 argv_array_push(&cp.args, "reset");
309
310 return run_command(&cp);
311 }
312
313 static void add_diff_to_buf(struct diff_queue_struct *q,
314 struct diff_options *options,
315 void *data)
316 {
317 int i;
318
319 for (i = 0; i < q->nr; i++) {
320 strbuf_addstr(data, q->queue[i]->one->path);
321
322 /* NUL-terminate: will be fed to update-index -z */
323 strbuf_addch(data, '\0');
324 }
325 }
326
327 static int get_newly_staged(struct strbuf *out, struct object_id *c_tree)
328 {
329 struct child_process cp = CHILD_PROCESS_INIT;
330 const char *c_tree_hex = oid_to_hex(c_tree);
331
332 /*
333 * diff-index is very similar to diff-tree above, and should be
334 * converted together with update_index.
335 */
336 cp.git_cmd = 1;
337 argv_array_pushl(&cp.args, "diff-index", "--cached", "--name-only",
338 "--diff-filter=A", NULL);
339 argv_array_push(&cp.args, c_tree_hex);
340 return pipe_command(&cp, NULL, 0, out, 0, NULL, 0);
341 }
342
343 static int update_index(struct strbuf *out)
344 {
345 struct child_process cp = CHILD_PROCESS_INIT;
346
347 /*
348 * Update-index is very complicated and may need to have a public
349 * function exposed in order to remove this forking.
350 */
351 cp.git_cmd = 1;
352 argv_array_pushl(&cp.args, "update-index", "--add", "--stdin", NULL);
353 return pipe_command(&cp, out->buf, out->len, NULL, 0, NULL, 0);
354 }
355
356 static int restore_untracked(struct object_id *u_tree)
357 {
358 int res;
359 struct child_process cp = CHILD_PROCESS_INIT;
360
361 /*
362 * We need to run restore files from a given index, but without
363 * affecting the current index, so we use GIT_INDEX_FILE with
364 * run_command to fork processes that will not interfere.
365 */
366 cp.git_cmd = 1;
367 argv_array_push(&cp.args, "read-tree");
368 argv_array_push(&cp.args, oid_to_hex(u_tree));
369 argv_array_pushf(&cp.env_array, "GIT_INDEX_FILE=%s",
370 stash_index_path.buf);
371 if (run_command(&cp)) {
372 remove_path(stash_index_path.buf);
373 return -1;
374 }
375
376 child_process_init(&cp);
377 cp.git_cmd = 1;
378 argv_array_pushl(&cp.args, "checkout-index", "--all", NULL);
379 argv_array_pushf(&cp.env_array, "GIT_INDEX_FILE=%s",
380 stash_index_path.buf);
381
382 res = run_command(&cp);
383 remove_path(stash_index_path.buf);
384 return res;
385 }
386
387 static int do_apply_stash(const char *prefix, struct stash_info *info,
388 int index, int quiet)
389 {
390 int ret;
391 int has_index = index;
392 struct merge_options o;
393 struct object_id c_tree;
394 struct object_id index_tree;
395 struct commit *result;
396 const struct object_id *bases[1];
397
398 read_cache_preload(NULL);
399 if (refresh_and_write_cache(REFRESH_QUIET, 0, 0))
400 return -1;
401
402 if (write_cache_as_tree(&c_tree, 0, NULL))
403 return error(_("cannot apply a stash in the middle of a merge"));
404
405 if (index) {
406 if (oideq(&info->b_tree, &info->i_tree) ||
407 oideq(&c_tree, &info->i_tree)) {
408 has_index = 0;
409 } else {
410 struct strbuf out = STRBUF_INIT;
411
412 if (diff_tree_binary(&out, &info->w_commit)) {
413 strbuf_release(&out);
414 return error(_("could not generate diff %s^!."),
415 oid_to_hex(&info->w_commit));
416 }
417
418 ret = apply_cached(&out);
419 strbuf_release(&out);
420 if (ret)
421 return error(_("conflicts in index."
422 "Try without --index."));
423
424 discard_cache();
425 read_cache();
426 if (write_cache_as_tree(&index_tree, 0, NULL))
427 return error(_("could not save index tree"));
428
429 reset_head();
430 }
431 }
432
433 if (info->has_u && restore_untracked(&info->u_tree))
434 return error(_("could not restore untracked files from stash"));
435
436 init_merge_options(&o, the_repository);
437
438 o.branch1 = "Updated upstream";
439 o.branch2 = "Stashed changes";
440
441 if (oideq(&info->b_tree, &c_tree))
442 o.branch1 = "Version stash was based on";
443
444 if (quiet)
445 o.verbosity = 0;
446
447 if (o.verbosity >= 3)
448 printf_ln(_("Merging %s with %s"), o.branch1, o.branch2);
449
450 bases[0] = &info->b_tree;
451
452 ret = merge_recursive_generic(&o, &c_tree, &info->w_tree, 1, bases,
453 &result);
454 if (ret) {
455 rerere(0);
456
457 if (index)
458 fprintf_ln(stderr, _("Index was not unstashed."));
459
460 return ret;
461 }
462
463 if (has_index) {
464 if (reset_tree(&index_tree, 0, 0))
465 return -1;
466 } else {
467 struct strbuf out = STRBUF_INIT;
468
469 if (get_newly_staged(&out, &c_tree)) {
470 strbuf_release(&out);
471 return -1;
472 }
473
474 if (reset_tree(&c_tree, 0, 1)) {
475 strbuf_release(&out);
476 return -1;
477 }
478
479 ret = update_index(&out);
480 strbuf_release(&out);
481 if (ret)
482 return -1;
483
484 discard_cache();
485 }
486
487 if (quiet) {
488 if (refresh_and_write_cache(REFRESH_QUIET, 0, 0))
489 warning("could not refresh index");
490 } else {
491 struct child_process cp = CHILD_PROCESS_INIT;
492
493 /*
494 * Status is quite simple and could be replaced with calls to
495 * wt_status in the future, but it adds complexities which may
496 * require more tests.
497 */
498 cp.git_cmd = 1;
499 cp.dir = prefix;
500 argv_array_push(&cp.args, "status");
501 run_command(&cp);
502 }
503
504 return 0;
505 }
506
507 static int apply_stash(int argc, const char **argv, const char *prefix)
508 {
509 int ret;
510 int quiet = 0;
511 int index = 0;
512 struct stash_info info;
513 struct option options[] = {
514 OPT__QUIET(&quiet, N_("be quiet, only report errors")),
515 OPT_BOOL(0, "index", &index,
516 N_("attempt to recreate the index")),
517 OPT_END()
518 };
519
520 argc = parse_options(argc, argv, prefix, options,
521 git_stash_apply_usage, 0);
522
523 if (get_stash_info(&info, argc, argv))
524 return -1;
525
526 ret = do_apply_stash(prefix, &info, index, quiet);
527 free_stash_info(&info);
528 return ret;
529 }
530
531 static int do_drop_stash(struct stash_info *info, int quiet)
532 {
533 int ret;
534 struct child_process cp_reflog = CHILD_PROCESS_INIT;
535 struct child_process cp = CHILD_PROCESS_INIT;
536
537 /*
538 * reflog does not provide a simple function for deleting refs. One will
539 * need to be added to avoid implementing too much reflog code here
540 */
541
542 cp_reflog.git_cmd = 1;
543 argv_array_pushl(&cp_reflog.args, "reflog", "delete", "--updateref",
544 "--rewrite", NULL);
545 argv_array_push(&cp_reflog.args, info->revision.buf);
546 ret = run_command(&cp_reflog);
547 if (!ret) {
548 if (!quiet)
549 printf_ln(_("Dropped %s (%s)"), info->revision.buf,
550 oid_to_hex(&info->w_commit));
551 } else {
552 return error(_("%s: Could not drop stash entry"),
553 info->revision.buf);
554 }
555
556 /*
557 * This could easily be replaced by get_oid, but currently it will throw
558 * a fatal error when a reflog is empty, which we can not recover from.
559 */
560 cp.git_cmd = 1;
561 /* Even though --quiet is specified, rev-parse still outputs the hash */
562 cp.no_stdout = 1;
563 argv_array_pushl(&cp.args, "rev-parse", "--verify", "--quiet", NULL);
564 argv_array_pushf(&cp.args, "%s@{0}", ref_stash);
565 ret = run_command(&cp);
566
567 /* do_clear_stash if we just dropped the last stash entry */
568 if (ret)
569 do_clear_stash();
570
571 return 0;
572 }
573
574 static void assert_stash_ref(struct stash_info *info)
575 {
576 if (!info->is_stash_ref) {
577 error(_("'%s' is not a stash reference"), info->revision.buf);
578 free_stash_info(info);
579 exit(1);
580 }
581 }
582
583 static int drop_stash(int argc, const char **argv, const char *prefix)
584 {
585 int ret;
586 int quiet = 0;
587 struct stash_info info;
588 struct option options[] = {
589 OPT__QUIET(&quiet, N_("be quiet, only report errors")),
590 OPT_END()
591 };
592
593 argc = parse_options(argc, argv, prefix, options,
594 git_stash_drop_usage, 0);
595
596 if (get_stash_info(&info, argc, argv))
597 return -1;
598
599 assert_stash_ref(&info);
600
601 ret = do_drop_stash(&info, quiet);
602 free_stash_info(&info);
603 return ret;
604 }
605
606 static int pop_stash(int argc, const char **argv, const char *prefix)
607 {
608 int ret;
609 int index = 0;
610 int quiet = 0;
611 struct stash_info info;
612 struct option options[] = {
613 OPT__QUIET(&quiet, N_("be quiet, only report errors")),
614 OPT_BOOL(0, "index", &index,
615 N_("attempt to recreate the index")),
616 OPT_END()
617 };
618
619 argc = parse_options(argc, argv, prefix, options,
620 git_stash_pop_usage, 0);
621
622 if (get_stash_info(&info, argc, argv))
623 return -1;
624
625 assert_stash_ref(&info);
626 if ((ret = do_apply_stash(prefix, &info, index, quiet)))
627 printf_ln(_("The stash entry is kept in case "
628 "you need it again."));
629 else
630 ret = do_drop_stash(&info, quiet);
631
632 free_stash_info(&info);
633 return ret;
634 }
635
636 static int branch_stash(int argc, const char **argv, const char *prefix)
637 {
638 int ret;
639 const char *branch = NULL;
640 struct stash_info info;
641 struct child_process cp = CHILD_PROCESS_INIT;
642 struct option options[] = {
643 OPT_END()
644 };
645
646 argc = parse_options(argc, argv, prefix, options,
647 git_stash_branch_usage, 0);
648
649 if (!argc) {
650 fprintf_ln(stderr, _("No branch name specified"));
651 return -1;
652 }
653
654 branch = argv[0];
655
656 if (get_stash_info(&info, argc - 1, argv + 1))
657 return -1;
658
659 cp.git_cmd = 1;
660 argv_array_pushl(&cp.args, "checkout", "-b", NULL);
661 argv_array_push(&cp.args, branch);
662 argv_array_push(&cp.args, oid_to_hex(&info.b_commit));
663 ret = run_command(&cp);
664 if (!ret)
665 ret = do_apply_stash(prefix, &info, 1, 0);
666 if (!ret && info.is_stash_ref)
667 ret = do_drop_stash(&info, 0);
668
669 free_stash_info(&info);
670
671 return ret;
672 }
673
674 static int list_stash(int argc, const char **argv, const char *prefix)
675 {
676 struct child_process cp = CHILD_PROCESS_INIT;
677 struct option options[] = {
678 OPT_END()
679 };
680
681 argc = parse_options(argc, argv, prefix, options,
682 git_stash_list_usage,
683 PARSE_OPT_KEEP_UNKNOWN);
684
685 if (!ref_exists(ref_stash))
686 return 0;
687
688 cp.git_cmd = 1;
689 argv_array_pushl(&cp.args, "log", "--format=%gd: %gs", "-g",
690 "--first-parent", "-m", NULL);
691 argv_array_pushv(&cp.args, argv);
692 argv_array_push(&cp.args, ref_stash);
693 argv_array_push(&cp.args, "--");
694 return run_command(&cp);
695 }
696
697 static int show_stat = 1;
698 static int show_patch;
699
700 static int git_stash_config(const char *var, const char *value, void *cb)
701 {
702 if (!strcmp(var, "stash.showstat")) {
703 show_stat = git_config_bool(var, value);
704 return 0;
705 }
706 if (!strcmp(var, "stash.showpatch")) {
707 show_patch = git_config_bool(var, value);
708 return 0;
709 }
710 return git_default_config(var, value, cb);
711 }
712
713 static int show_stash(int argc, const char **argv, const char *prefix)
714 {
715 int i;
716 int ret = 0;
717 struct stash_info info;
718 struct rev_info rev;
719 struct argv_array stash_args = ARGV_ARRAY_INIT;
720 struct argv_array revision_args = ARGV_ARRAY_INIT;
721 struct option options[] = {
722 OPT_END()
723 };
724
725 init_diff_ui_defaults();
726 git_config(git_diff_ui_config, NULL);
727 init_revisions(&rev, prefix);
728
729 argv_array_push(&revision_args, argv[0]);
730 for (i = 1; i < argc; i++) {
731 if (argv[i][0] != '-')
732 argv_array_push(&stash_args, argv[i]);
733 else
734 argv_array_push(&revision_args, argv[i]);
735 }
736
737 ret = get_stash_info(&info, stash_args.argc, stash_args.argv);
738 argv_array_clear(&stash_args);
739 if (ret)
740 return -1;
741
742 /*
743 * The config settings are applied only if there are not passed
744 * any options.
745 */
746 if (revision_args.argc == 1) {
747 git_config(git_stash_config, NULL);
748 if (show_stat)
749 rev.diffopt.output_format = DIFF_FORMAT_DIFFSTAT;
750
751 if (show_patch)
752 rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
753
754 if (!show_stat && !show_patch) {
755 free_stash_info(&info);
756 return 0;
757 }
758 }
759
760 argc = setup_revisions(revision_args.argc, revision_args.argv, &rev, NULL);
761 if (argc > 1) {
762 free_stash_info(&info);
763 usage_with_options(git_stash_show_usage, options);
764 }
765 if (!rev.diffopt.output_format) {
766 rev.diffopt.output_format = DIFF_FORMAT_PATCH;
767 diff_setup_done(&rev.diffopt);
768 }
769
770 rev.diffopt.flags.recursive = 1;
771 setup_diff_pager(&rev.diffopt);
772 diff_tree_oid(&info.b_commit, &info.w_commit, "", &rev.diffopt);
773 log_tree_diff_flush(&rev);
774
775 free_stash_info(&info);
776 return diff_result_code(&rev.diffopt, 0);
777 }
778
779 static int do_store_stash(const struct object_id *w_commit, const char *stash_msg,
780 int quiet)
781 {
782 if (!stash_msg)
783 stash_msg = "Created via \"git stash store\".";
784
785 if (update_ref(stash_msg, ref_stash, w_commit, NULL,
786 REF_FORCE_CREATE_REFLOG,
787 quiet ? UPDATE_REFS_QUIET_ON_ERR :
788 UPDATE_REFS_MSG_ON_ERR)) {
789 if (!quiet) {
790 fprintf_ln(stderr, _("Cannot update %s with %s"),
791 ref_stash, oid_to_hex(w_commit));
792 }
793 return -1;
794 }
795
796 return 0;
797 }
798
799 static int store_stash(int argc, const char **argv, const char *prefix)
800 {
801 int quiet = 0;
802 const char *stash_msg = NULL;
803 struct object_id obj;
804 struct object_context dummy;
805 struct option options[] = {
806 OPT__QUIET(&quiet, N_("be quiet")),
807 OPT_STRING('m', "message", &stash_msg, "message",
808 N_("stash message")),
809 OPT_END()
810 };
811
812 argc = parse_options(argc, argv, prefix, options,
813 git_stash_store_usage,
814 PARSE_OPT_KEEP_UNKNOWN);
815
816 if (argc != 1) {
817 if (!quiet)
818 fprintf_ln(stderr, _("\"git stash store\" requires one "
819 "<commit> argument"));
820 return -1;
821 }
822
823 if (get_oid_with_context(the_repository,
824 argv[0], quiet ? GET_OID_QUIETLY : 0, &obj,
825 &dummy)) {
826 if (!quiet)
827 fprintf_ln(stderr, _("Cannot update %s with %s"),
828 ref_stash, argv[0]);
829 return -1;
830 }
831
832 return do_store_stash(&obj, stash_msg, quiet);
833 }
834
835 static void add_pathspecs(struct argv_array *args,
836 const struct pathspec *ps) {
837 int i;
838
839 for (i = 0; i < ps->nr; i++)
840 argv_array_push(args, ps->items[i].original);
841 }
842
843 /*
844 * `untracked_files` will be filled with the names of untracked files.
845 * The return value is:
846 *
847 * = 0 if there are not any untracked files
848 * > 0 if there are untracked files
849 */
850 static int get_untracked_files(const struct pathspec *ps, int include_untracked,
851 struct strbuf *untracked_files)
852 {
853 int i;
854 int max_len;
855 int found = 0;
856 char *seen;
857 struct dir_struct dir;
858
859 memset(&dir, 0, sizeof(dir));
860 if (include_untracked != INCLUDE_ALL_FILES)
861 setup_standard_excludes(&dir);
862
863 seen = xcalloc(ps->nr, 1);
864
865 max_len = fill_directory(&dir, the_repository->index, ps);
866 for (i = 0; i < dir.nr; i++) {
867 struct dir_entry *ent = dir.entries[i];
868 if (dir_path_match(&the_index, ent, ps, max_len, seen)) {
869 found++;
870 strbuf_addstr(untracked_files, ent->name);
871 /* NUL-terminate: will be fed to update-index -z */
872 strbuf_addch(untracked_files, '\0');
873 }
874 free(ent);
875 }
876
877 free(seen);
878 free(dir.entries);
879 free(dir.ignored);
880 clear_directory(&dir);
881 return found;
882 }
883
884 /*
885 * The return value of `check_changes_tracked_files()` can be:
886 *
887 * < 0 if there was an error
888 * = 0 if there are no changes.
889 * > 0 if there are changes.
890 */
891 static int check_changes_tracked_files(const struct pathspec *ps)
892 {
893 int result;
894 struct rev_info rev;
895 struct object_id dummy;
896 int ret = 0;
897
898 /* No initial commit. */
899 if (get_oid("HEAD", &dummy))
900 return -1;
901
902 if (read_cache() < 0)
903 return -1;
904
905 init_revisions(&rev, NULL);
906 copy_pathspec(&rev.prune_data, ps);
907
908 rev.diffopt.flags.quick = 1;
909 rev.diffopt.flags.ignore_submodules = 1;
910 rev.abbrev = 0;
911
912 add_head_to_pending(&rev);
913 diff_setup_done(&rev.diffopt);
914
915 result = run_diff_index(&rev, 1);
916 if (diff_result_code(&rev.diffopt, result)) {
917 ret = 1;
918 goto done;
919 }
920
921 object_array_clear(&rev.pending);
922 result = run_diff_files(&rev, 0);
923 if (diff_result_code(&rev.diffopt, result)) {
924 ret = 1;
925 goto done;
926 }
927
928 done:
929 clear_pathspec(&rev.prune_data);
930 return ret;
931 }
932
933 /*
934 * The function will fill `untracked_files` with the names of untracked files
935 * It will return 1 if there were any changes and 0 if there were not.
936 */
937 static int check_changes(const struct pathspec *ps, int include_untracked,
938 struct strbuf *untracked_files)
939 {
940 int ret = 0;
941 if (check_changes_tracked_files(ps))
942 ret = 1;
943
944 if (include_untracked && get_untracked_files(ps, include_untracked,
945 untracked_files))
946 ret = 1;
947
948 return ret;
949 }
950
951 static int save_untracked_files(struct stash_info *info, struct strbuf *msg,
952 struct strbuf files)
953 {
954 int ret = 0;
955 struct strbuf untracked_msg = STRBUF_INIT;
956 struct child_process cp_upd_index = CHILD_PROCESS_INIT;
957 struct index_state istate = { NULL };
958
959 cp_upd_index.git_cmd = 1;
960 argv_array_pushl(&cp_upd_index.args, "update-index", "-z", "--add",
961 "--remove", "--stdin", NULL);
962 argv_array_pushf(&cp_upd_index.env_array, "GIT_INDEX_FILE=%s",
963 stash_index_path.buf);
964
965 strbuf_addf(&untracked_msg, "untracked files on %s\n", msg->buf);
966 if (pipe_command(&cp_upd_index, files.buf, files.len, NULL, 0,
967 NULL, 0)) {
968 ret = -1;
969 goto done;
970 }
971
972 if (write_index_as_tree(&info->u_tree, &istate, stash_index_path.buf, 0,
973 NULL)) {
974 ret = -1;
975 goto done;
976 }
977
978 if (commit_tree(untracked_msg.buf, untracked_msg.len,
979 &info->u_tree, NULL, &info->u_commit, NULL, NULL)) {
980 ret = -1;
981 goto done;
982 }
983
984 done:
985 discard_index(&istate);
986 strbuf_release(&untracked_msg);
987 remove_path(stash_index_path.buf);
988 return ret;
989 }
990
991 static int stash_patch(struct stash_info *info, const struct pathspec *ps,
992 struct strbuf *out_patch, int quiet)
993 {
994 int ret = 0;
995 struct child_process cp_read_tree = CHILD_PROCESS_INIT;
996 struct child_process cp_add_i = CHILD_PROCESS_INIT;
997 struct child_process cp_diff_tree = CHILD_PROCESS_INIT;
998 struct index_state istate = { NULL };
999
1000 remove_path(stash_index_path.buf);
1001
1002 cp_read_tree.git_cmd = 1;
1003 argv_array_pushl(&cp_read_tree.args, "read-tree", "HEAD", NULL);
1004 argv_array_pushf(&cp_read_tree.env_array, "GIT_INDEX_FILE=%s",
1005 stash_index_path.buf);
1006 if (run_command(&cp_read_tree)) {
1007 ret = -1;
1008 goto done;
1009 }
1010
1011 /* Find out what the user wants. */
1012 cp_add_i.git_cmd = 1;
1013 argv_array_pushl(&cp_add_i.args, "add--interactive", "--patch=stash",
1014 "--", NULL);
1015 add_pathspecs(&cp_add_i.args, ps);
1016 argv_array_pushf(&cp_add_i.env_array, "GIT_INDEX_FILE=%s",
1017 stash_index_path.buf);
1018 if (run_command(&cp_add_i)) {
1019 ret = -1;
1020 goto done;
1021 }
1022
1023 /* State of the working tree. */
1024 if (write_index_as_tree(&info->w_tree, &istate, stash_index_path.buf, 0,
1025 NULL)) {
1026 ret = -1;
1027 goto done;
1028 }
1029
1030 cp_diff_tree.git_cmd = 1;
1031 argv_array_pushl(&cp_diff_tree.args, "diff-tree", "-p", "HEAD",
1032 oid_to_hex(&info->w_tree), "--", NULL);
1033 if (pipe_command(&cp_diff_tree, NULL, 0, out_patch, 0, NULL, 0)) {
1034 ret = -1;
1035 goto done;
1036 }
1037
1038 if (!out_patch->len) {
1039 if (!quiet)
1040 fprintf_ln(stderr, _("No changes selected"));
1041 ret = 1;
1042 }
1043
1044 done:
1045 discard_index(&istate);
1046 remove_path(stash_index_path.buf);
1047 return ret;
1048 }
1049
1050 static int stash_working_tree(struct stash_info *info, const struct pathspec *ps)
1051 {
1052 int ret = 0;
1053 struct rev_info rev;
1054 struct child_process cp_upd_index = CHILD_PROCESS_INIT;
1055 struct strbuf diff_output = STRBUF_INIT;
1056 struct index_state istate = { NULL };
1057
1058 init_revisions(&rev, NULL);
1059 copy_pathspec(&rev.prune_data, ps);
1060
1061 set_alternate_index_output(stash_index_path.buf);
1062 if (reset_tree(&info->i_tree, 0, 0)) {
1063 ret = -1;
1064 goto done;
1065 }
1066 set_alternate_index_output(NULL);
1067
1068 rev.diffopt.output_format = DIFF_FORMAT_CALLBACK;
1069 rev.diffopt.format_callback = add_diff_to_buf;
1070 rev.diffopt.format_callback_data = &diff_output;
1071
1072 if (read_cache_preload(&rev.diffopt.pathspec) < 0) {
1073 ret = -1;
1074 goto done;
1075 }
1076
1077 add_pending_object(&rev, parse_object(the_repository, &info->b_commit),
1078 "");
1079 if (run_diff_index(&rev, 0)) {
1080 ret = -1;
1081 goto done;
1082 }
1083
1084 cp_upd_index.git_cmd = 1;
1085 argv_array_pushl(&cp_upd_index.args, "update-index", "-z", "--add",
1086 "--remove", "--stdin", NULL);
1087 argv_array_pushf(&cp_upd_index.env_array, "GIT_INDEX_FILE=%s",
1088 stash_index_path.buf);
1089
1090 if (pipe_command(&cp_upd_index, diff_output.buf, diff_output.len,
1091 NULL, 0, NULL, 0)) {
1092 ret = -1;
1093 goto done;
1094 }
1095
1096 if (write_index_as_tree(&info->w_tree, &istate, stash_index_path.buf, 0,
1097 NULL)) {
1098 ret = -1;
1099 goto done;
1100 }
1101
1102 done:
1103 discard_index(&istate);
1104 UNLEAK(rev);
1105 object_array_clear(&rev.pending);
1106 clear_pathspec(&rev.prune_data);
1107 strbuf_release(&diff_output);
1108 remove_path(stash_index_path.buf);
1109 return ret;
1110 }
1111
1112 static int do_create_stash(const struct pathspec *ps, struct strbuf *stash_msg_buf,
1113 int include_untracked, int patch_mode,
1114 struct stash_info *info, struct strbuf *patch,
1115 int quiet)
1116 {
1117 int ret = 0;
1118 int flags = 0;
1119 int untracked_commit_option = 0;
1120 const char *head_short_sha1 = NULL;
1121 const char *branch_ref = NULL;
1122 const char *branch_name = "(no branch)";
1123 struct commit *head_commit = NULL;
1124 struct commit_list *parents = NULL;
1125 struct strbuf msg = STRBUF_INIT;
1126 struct strbuf commit_tree_label = STRBUF_INIT;
1127 struct strbuf untracked_files = STRBUF_INIT;
1128
1129 prepare_fallback_ident("git stash", "git@stash");
1130
1131 read_cache_preload(NULL);
1132 if (refresh_and_write_cache(REFRESH_QUIET, 0, 0) < 0) {
1133 ret = -1;
1134 goto done;
1135 }
1136
1137 if (get_oid("HEAD", &info->b_commit)) {
1138 if (!quiet)
1139 fprintf_ln(stderr, _("You do not have "
1140 "the initial commit yet"));
1141 ret = -1;
1142 goto done;
1143 } else {
1144 head_commit = lookup_commit(the_repository, &info->b_commit);
1145 }
1146
1147 if (!check_changes(ps, include_untracked, &untracked_files)) {
1148 ret = 1;
1149 goto done;
1150 }
1151
1152 branch_ref = resolve_ref_unsafe("HEAD", 0, NULL, &flags);
1153 if (flags & REF_ISSYMREF)
1154 branch_name = strrchr(branch_ref, '/') + 1;
1155 head_short_sha1 = find_unique_abbrev(&head_commit->object.oid,
1156 DEFAULT_ABBREV);
1157 strbuf_addf(&msg, "%s: %s ", branch_name, head_short_sha1);
1158 pp_commit_easy(CMIT_FMT_ONELINE, head_commit, &msg);
1159
1160 strbuf_addf(&commit_tree_label, "index on %s\n", msg.buf);
1161 commit_list_insert(head_commit, &parents);
1162 if (write_cache_as_tree(&info->i_tree, 0, NULL) ||
1163 commit_tree(commit_tree_label.buf, commit_tree_label.len,
1164 &info->i_tree, parents, &info->i_commit, NULL, NULL)) {
1165 if (!quiet)
1166 fprintf_ln(stderr, _("Cannot save the current "
1167 "index state"));
1168 ret = -1;
1169 goto done;
1170 }
1171
1172 if (include_untracked) {
1173 if (save_untracked_files(info, &msg, untracked_files)) {
1174 if (!quiet)
1175 fprintf_ln(stderr, _("Cannot save "
1176 "the untracked files"));
1177 ret = -1;
1178 goto done;
1179 }
1180 untracked_commit_option = 1;
1181 }
1182 if (patch_mode) {
1183 ret = stash_patch(info, ps, patch, quiet);
1184 if (ret < 0) {
1185 if (!quiet)
1186 fprintf_ln(stderr, _("Cannot save the current "
1187 "worktree state"));
1188 goto done;
1189 } else if (ret > 0) {
1190 goto done;
1191 }
1192 } else {
1193 if (stash_working_tree(info, ps)) {
1194 if (!quiet)
1195 fprintf_ln(stderr, _("Cannot save the current "
1196 "worktree state"));
1197 ret = -1;
1198 goto done;
1199 }
1200 }
1201
1202 if (!stash_msg_buf->len)
1203 strbuf_addf(stash_msg_buf, "WIP on %s", msg.buf);
1204 else
1205 strbuf_insertf(stash_msg_buf, 0, "On %s: ", branch_name);
1206
1207 /*
1208 * `parents` will be empty after calling `commit_tree()`, so there is
1209 * no need to call `free_commit_list()`
1210 */
1211 parents = NULL;
1212 if (untracked_commit_option)
1213 commit_list_insert(lookup_commit(the_repository,
1214 &info->u_commit),
1215 &parents);
1216 commit_list_insert(lookup_commit(the_repository, &info->i_commit),
1217 &parents);
1218 commit_list_insert(head_commit, &parents);
1219
1220 if (commit_tree(stash_msg_buf->buf, stash_msg_buf->len, &info->w_tree,
1221 parents, &info->w_commit, NULL, NULL)) {
1222 if (!quiet)
1223 fprintf_ln(stderr, _("Cannot record "
1224 "working tree state"));
1225 ret = -1;
1226 goto done;
1227 }
1228
1229 done:
1230 strbuf_release(&commit_tree_label);
1231 strbuf_release(&msg);
1232 strbuf_release(&untracked_files);
1233 return ret;
1234 }
1235
1236 static int create_stash(int argc, const char **argv, const char *prefix)
1237 {
1238 int ret = 0;
1239 struct strbuf stash_msg_buf = STRBUF_INIT;
1240 struct stash_info info;
1241 struct pathspec ps;
1242
1243 /* Starting with argv[1], since argv[0] is "create" */
1244 strbuf_join_argv(&stash_msg_buf, argc - 1, ++argv, ' ');
1245
1246 memset(&ps, 0, sizeof(ps));
1247 if (!check_changes_tracked_files(&ps))
1248 return 0;
1249
1250 ret = do_create_stash(&ps, &stash_msg_buf, 0, 0, &info,
1251 NULL, 0);
1252 if (!ret)
1253 printf_ln("%s", oid_to_hex(&info.w_commit));
1254
1255 strbuf_release(&stash_msg_buf);
1256 return ret;
1257 }
1258
1259 static int do_push_stash(const struct pathspec *ps, const char *stash_msg, int quiet,
1260 int keep_index, int patch_mode, int include_untracked)
1261 {
1262 int ret = 0;
1263 struct stash_info info;
1264 struct strbuf patch = STRBUF_INIT;
1265 struct strbuf stash_msg_buf = STRBUF_INIT;
1266 struct strbuf untracked_files = STRBUF_INIT;
1267
1268 if (patch_mode && keep_index == -1)
1269 keep_index = 1;
1270
1271 if (patch_mode && include_untracked) {
1272 fprintf_ln(stderr, _("Can't use --patch and --include-untracked"
1273 " or --all at the same time"));
1274 ret = -1;
1275 goto done;
1276 }
1277
1278 read_cache_preload(NULL);
1279 if (!include_untracked && ps->nr) {
1280 int i;
1281 char *ps_matched = xcalloc(ps->nr, 1);
1282
1283 for (i = 0; i < active_nr; i++)
1284 ce_path_match(&the_index, active_cache[i], ps,
1285 ps_matched);
1286
1287 if (report_path_error(ps_matched, ps)) {
1288 fprintf_ln(stderr, _("Did you forget to 'git add'?"));
1289 ret = -1;
1290 free(ps_matched);
1291 goto done;
1292 }
1293 free(ps_matched);
1294 }
1295
1296 if (refresh_and_write_cache(REFRESH_QUIET, 0, 0)) {
1297 ret = -1;
1298 goto done;
1299 }
1300
1301 if (!check_changes(ps, include_untracked, &untracked_files)) {
1302 if (!quiet)
1303 printf_ln(_("No local changes to save"));
1304 goto done;
1305 }
1306
1307 if (!reflog_exists(ref_stash) && do_clear_stash()) {
1308 ret = -1;
1309 if (!quiet)
1310 fprintf_ln(stderr, _("Cannot initialize stash"));
1311 goto done;
1312 }
1313
1314 if (stash_msg)
1315 strbuf_addstr(&stash_msg_buf, stash_msg);
1316 if (do_create_stash(ps, &stash_msg_buf, include_untracked, patch_mode,
1317 &info, &patch, quiet)) {
1318 ret = -1;
1319 goto done;
1320 }
1321
1322 if (do_store_stash(&info.w_commit, stash_msg_buf.buf, 1)) {
1323 ret = -1;
1324 if (!quiet)
1325 fprintf_ln(stderr, _("Cannot save the current status"));
1326 goto done;
1327 }
1328
1329 if (!quiet)
1330 printf_ln(_("Saved working directory and index state %s"),
1331 stash_msg_buf.buf);
1332
1333 if (!patch_mode) {
1334 if (include_untracked && !ps->nr) {
1335 struct child_process cp = CHILD_PROCESS_INIT;
1336
1337 cp.git_cmd = 1;
1338 argv_array_pushl(&cp.args, "clean", "--force",
1339 "--quiet", "-d", NULL);
1340 if (include_untracked == INCLUDE_ALL_FILES)
1341 argv_array_push(&cp.args, "-x");
1342 if (run_command(&cp)) {
1343 ret = -1;
1344 goto done;
1345 }
1346 }
1347 discard_cache();
1348 if (ps->nr) {
1349 struct child_process cp_add = CHILD_PROCESS_INIT;
1350 struct child_process cp_diff = CHILD_PROCESS_INIT;
1351 struct child_process cp_apply = CHILD_PROCESS_INIT;
1352 struct strbuf out = STRBUF_INIT;
1353
1354 cp_add.git_cmd = 1;
1355 argv_array_push(&cp_add.args, "add");
1356 if (!include_untracked)
1357 argv_array_push(&cp_add.args, "-u");
1358 if (include_untracked == INCLUDE_ALL_FILES)
1359 argv_array_push(&cp_add.args, "--force");
1360 argv_array_push(&cp_add.args, "--");
1361 add_pathspecs(&cp_add.args, ps);
1362 if (run_command(&cp_add)) {
1363 ret = -1;
1364 goto done;
1365 }
1366
1367 cp_diff.git_cmd = 1;
1368 argv_array_pushl(&cp_diff.args, "diff-index", "-p",
1369 "--cached", "--binary", "HEAD", "--",
1370 NULL);
1371 add_pathspecs(&cp_diff.args, ps);
1372 if (pipe_command(&cp_diff, NULL, 0, &out, 0, NULL, 0)) {
1373 ret = -1;
1374 goto done;
1375 }
1376
1377 cp_apply.git_cmd = 1;
1378 argv_array_pushl(&cp_apply.args, "apply", "--index",
1379 "-R", NULL);
1380 if (pipe_command(&cp_apply, out.buf, out.len, NULL, 0,
1381 NULL, 0)) {
1382 ret = -1;
1383 goto done;
1384 }
1385 } else {
1386 struct child_process cp = CHILD_PROCESS_INIT;
1387 cp.git_cmd = 1;
1388 argv_array_pushl(&cp.args, "reset", "--hard", "-q",
1389 NULL);
1390 if (run_command(&cp)) {
1391 ret = -1;
1392 goto done;
1393 }
1394 }
1395
1396 if (keep_index == 1 && !is_null_oid(&info.i_tree)) {
1397 struct child_process cp = CHILD_PROCESS_INIT;
1398
1399 cp.git_cmd = 1;
1400 argv_array_pushl(&cp.args, "checkout", "--no-overlay",
1401 oid_to_hex(&info.i_tree), "--", NULL);
1402 if (!ps->nr)
1403 argv_array_push(&cp.args, ":/");
1404 else
1405 add_pathspecs(&cp.args, ps);
1406 if (run_command(&cp)) {
1407 ret = -1;
1408 goto done;
1409 }
1410 }
1411 goto done;
1412 } else {
1413 struct child_process cp = CHILD_PROCESS_INIT;
1414
1415 cp.git_cmd = 1;
1416 argv_array_pushl(&cp.args, "apply", "-R", NULL);
1417
1418 if (pipe_command(&cp, patch.buf, patch.len, NULL, 0, NULL, 0)) {
1419 if (!quiet)
1420 fprintf_ln(stderr, _("Cannot remove "
1421 "worktree changes"));
1422 ret = -1;
1423 goto done;
1424 }
1425
1426 if (keep_index < 1) {
1427 struct child_process cp = CHILD_PROCESS_INIT;
1428
1429 cp.git_cmd = 1;
1430 argv_array_pushl(&cp.args, "reset", "-q", "--", NULL);
1431 add_pathspecs(&cp.args, ps);
1432 if (run_command(&cp)) {
1433 ret = -1;
1434 goto done;
1435 }
1436 }
1437 goto done;
1438 }
1439
1440 done:
1441 strbuf_release(&stash_msg_buf);
1442 return ret;
1443 }
1444
1445 static int push_stash(int argc, const char **argv, const char *prefix)
1446 {
1447 int keep_index = -1;
1448 int patch_mode = 0;
1449 int include_untracked = 0;
1450 int quiet = 0;
1451 const char *stash_msg = NULL;
1452 struct pathspec ps;
1453 struct option options[] = {
1454 OPT_BOOL('k', "keep-index", &keep_index,
1455 N_("keep index")),
1456 OPT_BOOL('p', "patch", &patch_mode,
1457 N_("stash in patch mode")),
1458 OPT__QUIET(&quiet, N_("quiet mode")),
1459 OPT_BOOL('u', "include-untracked", &include_untracked,
1460 N_("include untracked files in stash")),
1461 OPT_SET_INT('a', "all", &include_untracked,
1462 N_("include ignore files"), 2),
1463 OPT_STRING('m', "message", &stash_msg, N_("message"),
1464 N_("stash message")),
1465 OPT_END()
1466 };
1467
1468 if (argc)
1469 argc = parse_options(argc, argv, prefix, options,
1470 git_stash_push_usage,
1471 0);
1472
1473 parse_pathspec(&ps, 0, PATHSPEC_PREFER_FULL | PATHSPEC_PREFIX_ORIGIN,
1474 prefix, argv);
1475 return do_push_stash(&ps, stash_msg, quiet, keep_index, patch_mode,
1476 include_untracked);
1477 }
1478
1479 static int save_stash(int argc, const char **argv, const char *prefix)
1480 {
1481 int keep_index = -1;
1482 int patch_mode = 0;
1483 int include_untracked = 0;
1484 int quiet = 0;
1485 int ret = 0;
1486 const char *stash_msg = NULL;
1487 struct pathspec ps;
1488 struct strbuf stash_msg_buf = STRBUF_INIT;
1489 struct option options[] = {
1490 OPT_BOOL('k', "keep-index", &keep_index,
1491 N_("keep index")),
1492 OPT_BOOL('p', "patch", &patch_mode,
1493 N_("stash in patch mode")),
1494 OPT__QUIET(&quiet, N_("quiet mode")),
1495 OPT_BOOL('u', "include-untracked", &include_untracked,
1496 N_("include untracked files in stash")),
1497 OPT_SET_INT('a', "all", &include_untracked,
1498 N_("include ignore files"), 2),
1499 OPT_STRING('m', "message", &stash_msg, "message",
1500 N_("stash message")),
1501 OPT_END()
1502 };
1503
1504 argc = parse_options(argc, argv, prefix, options,
1505 git_stash_save_usage,
1506 PARSE_OPT_KEEP_DASHDASH);
1507
1508 if (argc)
1509 stash_msg = strbuf_join_argv(&stash_msg_buf, argc, argv, ' ');
1510
1511 memset(&ps, 0, sizeof(ps));
1512 ret = do_push_stash(&ps, stash_msg, quiet, keep_index,
1513 patch_mode, include_untracked);
1514
1515 strbuf_release(&stash_msg_buf);
1516 return ret;
1517 }
1518
1519 static int use_builtin_stash(void)
1520 {
1521 struct child_process cp = CHILD_PROCESS_INIT;
1522 struct strbuf out = STRBUF_INIT;
1523 int ret, env = git_env_bool("GIT_TEST_STASH_USE_BUILTIN", -1);
1524
1525 if (env != -1)
1526 return env;
1527
1528 argv_array_pushl(&cp.args,
1529 "config", "--bool", "stash.usebuiltin", NULL);
1530 cp.git_cmd = 1;
1531 if (capture_command(&cp, &out, 6)) {
1532 strbuf_release(&out);
1533 return 1;
1534 }
1535
1536 strbuf_trim(&out);
1537 ret = !strcmp("true", out.buf);
1538 strbuf_release(&out);
1539 return ret;
1540 }
1541
1542 int cmd_stash(int argc, const char **argv, const char *prefix)
1543 {
1544 int i = -1;
1545 pid_t pid = getpid();
1546 const char *index_file;
1547 struct argv_array args = ARGV_ARRAY_INIT;
1548
1549 struct option options[] = {
1550 OPT_END()
1551 };
1552
1553 if (!use_builtin_stash()) {
1554 const char *path = mkpath("%s/git-legacy-stash",
1555 git_exec_path());
1556
1557 if (sane_execvp(path, (char **)argv) < 0)
1558 die_errno(_("could not exec %s"), path);
1559 else
1560 BUG("sane_execvp() returned???");
1561 }
1562
1563 prefix = setup_git_directory();
1564 trace_repo_setup(prefix);
1565 setup_work_tree();
1566
1567 git_config(git_diff_basic_config, NULL);
1568
1569 argc = parse_options(argc, argv, prefix, options, git_stash_usage,
1570 PARSE_OPT_KEEP_UNKNOWN | PARSE_OPT_KEEP_DASHDASH);
1571
1572 index_file = get_index_file();
1573 strbuf_addf(&stash_index_path, "%s.stash.%" PRIuMAX, index_file,
1574 (uintmax_t)pid);
1575
1576 if (!argc)
1577 return !!push_stash(0, NULL, prefix);
1578 else if (!strcmp(argv[0], "apply"))
1579 return !!apply_stash(argc, argv, prefix);
1580 else if (!strcmp(argv[0], "clear"))
1581 return !!clear_stash(argc, argv, prefix);
1582 else if (!strcmp(argv[0], "drop"))
1583 return !!drop_stash(argc, argv, prefix);
1584 else if (!strcmp(argv[0], "pop"))
1585 return !!pop_stash(argc, argv, prefix);
1586 else if (!strcmp(argv[0], "branch"))
1587 return !!branch_stash(argc, argv, prefix);
1588 else if (!strcmp(argv[0], "list"))
1589 return !!list_stash(argc, argv, prefix);
1590 else if (!strcmp(argv[0], "show"))
1591 return !!show_stash(argc, argv, prefix);
1592 else if (!strcmp(argv[0], "store"))
1593 return !!store_stash(argc, argv, prefix);
1594 else if (!strcmp(argv[0], "create"))
1595 return !!create_stash(argc, argv, prefix);
1596 else if (!strcmp(argv[0], "push"))
1597 return !!push_stash(argc, argv, prefix);
1598 else if (!strcmp(argv[0], "save"))
1599 return !!save_stash(argc, argv, prefix);
1600 else if (*argv[0] != '-')
1601 usage_msg_opt(xstrfmt(_("unknown subcommand: %s"), argv[0]),
1602 git_stash_usage, options);
1603
1604 if (strcmp(argv[0], "-p")) {
1605 while (++i < argc && strcmp(argv[i], "--")) {
1606 /*
1607 * `akpqu` is a string which contains all short options,
1608 * except `-m` which is verified separately.
1609 */
1610 if ((strlen(argv[i]) == 2) && *argv[i] == '-' &&
1611 strchr("akpqu", argv[i][1]))
1612 continue;
1613
1614 if (!strcmp(argv[i], "--all") ||
1615 !strcmp(argv[i], "--keep-index") ||
1616 !strcmp(argv[i], "--no-keep-index") ||
1617 !strcmp(argv[i], "--patch") ||
1618 !strcmp(argv[i], "--quiet") ||
1619 !strcmp(argv[i], "--include-untracked"))
1620 continue;
1621
1622 /*
1623 * `-m` and `--message=` are verified separately because
1624 * they need to be immediately followed by a string
1625 * (i.e.`-m"foobar"` or `--message="foobar"`).
1626 */
1627 if (starts_with(argv[i], "-m") ||
1628 starts_with(argv[i], "--message="))
1629 continue;
1630
1631 usage_with_options(git_stash_usage, options);
1632 }
1633 }
1634
1635 argv_array_push(&args, "push");
1636 argv_array_pushv(&args, argv);
1637 return !!push_stash(args.argc, args.argv, prefix);
1638 }