git

1
#define USE_THE_REPOSITORY_VARIABLE
2

3
#include "git-compat-util.h"
4
#include "advice.h"
5
#include "wt-status.h"
6
#include "object.h"
7
#include "dir.h"
8
#include "commit.h"
9
#include "diff.h"
10
#include "environment.h"
11
#include "gettext.h"
12
#include "hash.h"
13
#include "hex.h"
14
#include "object-name.h"
15
#include "path.h"
16
#include "revision.h"
17
#include "diffcore.h"
18
#include "quote.h"
19
#include "run-command.h"
20
#include "strvec.h"
21
#include "remote.h"
22
#include "refs.h"
23
#include "submodule.h"
24
#include "column.h"
25
#include "read-cache.h"
26
#include "setup.h"
27
#include "strbuf.h"
28
#include "trace.h"
29
#include "trace2.h"
30
#include "tree.h"
31
#include "utf8.h"
32
#include "worktree.h"
33
#include "lockfile.h"
34
#include "sequencer.h"
35
#include "fsmonitor-settings.h"
36

37
#define AB_DELAY_WARNING_IN_MS (2 * 1000)
38
#define UF_DELAY_WARNING_IN_MS (2 * 1000)
39

40
static const char cut_line[] =
41
"------------------------ >8 ------------------------\n";
42

43
static char default_wt_status_colors[][COLOR_MAXLEN] = {
44
	GIT_COLOR_NORMAL, /* WT_STATUS_HEADER */
45
	GIT_COLOR_GREEN,  /* WT_STATUS_UPDATED */
46
	GIT_COLOR_RED,    /* WT_STATUS_CHANGED */
47
	GIT_COLOR_RED,    /* WT_STATUS_UNTRACKED */
48
	GIT_COLOR_RED,    /* WT_STATUS_NOBRANCH */
49
	GIT_COLOR_RED,    /* WT_STATUS_UNMERGED */
50
	GIT_COLOR_GREEN,  /* WT_STATUS_LOCAL_BRANCH */
51
	GIT_COLOR_RED,    /* WT_STATUS_REMOTE_BRANCH */
52
	GIT_COLOR_NIL,    /* WT_STATUS_ONBRANCH */
53
};
54

55
static const char *color(int slot, struct wt_status *s)
56
{
57
	const char *c = "";
58
	if (want_color(s->use_color))
59
		c = s->color_palette[slot];
60
	if (slot == WT_STATUS_ONBRANCH && color_is_nil(c))
61
		c = s->color_palette[WT_STATUS_HEADER];
62
	return c;
63
}
64

65
static void status_vprintf(struct wt_status *s, int at_bol, const char *color,
66
		const char *fmt, va_list ap, const char *trail)
67
{
68
	struct strbuf sb = STRBUF_INIT;
69
	struct strbuf linebuf = STRBUF_INIT;
70
	const char *line, *eol;
71

72
	strbuf_vaddf(&sb, fmt, ap);
73
	if (!sb.len) {
74
		if (s->display_comment_prefix) {
75
			strbuf_addstr(&sb, comment_line_str);
76
			if (!trail)
77
				strbuf_addch(&sb, ' ');
78
		}
79
		color_print_strbuf(s->fp, color, &sb);
80
		if (trail)
81
			fprintf(s->fp, "%s", trail);
82
		strbuf_release(&sb);
83
		return;
84
	}
85
	for (line = sb.buf; *line; line = eol + 1) {
86
		eol = strchr(line, '\n');
87

88
		strbuf_reset(&linebuf);
89
		if (at_bol && s->display_comment_prefix) {
90
			strbuf_addstr(&linebuf, comment_line_str);
91
			if (*line != '\n' && *line != '\t')
92
				strbuf_addch(&linebuf, ' ');
93
		}
94
		if (eol)
95
			strbuf_add(&linebuf, line, eol - line);
96
		else
97
			strbuf_addstr(&linebuf, line);
98
		color_print_strbuf(s->fp, color, &linebuf);
99
		if (eol)
100
			fprintf(s->fp, "\n");
101
		else
102
			break;
103
		at_bol = 1;
104
	}
105
	if (trail)
106
		fprintf(s->fp, "%s", trail);
107
	strbuf_release(&linebuf);
108
	strbuf_release(&sb);
109
}
110

111
void status_printf_ln(struct wt_status *s, const char *color,
112
			const char *fmt, ...)
113
{
114
	va_list ap;
115

116
	va_start(ap, fmt);
117
	status_vprintf(s, 1, color, fmt, ap, "\n");
118
	va_end(ap);
119
}
120

121
void status_printf(struct wt_status *s, const char *color,
122
			const char *fmt, ...)
123
{
124
	va_list ap;
125

126
	va_start(ap, fmt);
127
	status_vprintf(s, 1, color, fmt, ap, NULL);
128
	va_end(ap);
129
}
130

131
__attribute__((format (printf, 3, 4)))
132
static void status_printf_more(struct wt_status *s, const char *color,
133
			       const char *fmt, ...)
134
{
135
	va_list ap;
136

137
	va_start(ap, fmt);
138
	status_vprintf(s, 0, color, fmt, ap, NULL);
139
	va_end(ap);
140
}
141

142
void wt_status_prepare(struct repository *r, struct wt_status *s)
143
{
144
	memset(s, 0, sizeof(*s));
145
	s->repo = r;
146
	memcpy(s->color_palette, default_wt_status_colors,
147
	       sizeof(default_wt_status_colors));
148
	s->show_untracked_files = SHOW_NORMAL_UNTRACKED_FILES;
149
	s->use_color = -1;
150
	s->relative_paths = 1;
151
	s->branch = refs_resolve_refdup(get_main_ref_store(the_repository),
152
					"HEAD", 0, NULL, NULL);
153
	s->reference = "HEAD";
154
	s->fp = stdout;
155
	s->index_file = get_index_file();
156
	s->change.strdup_strings = 1;
157
	s->untracked.strdup_strings = 1;
158
	s->ignored.strdup_strings = 1;
159
	s->show_branch = -1;  /* unspecified */
160
	s->show_stash = 0;
161
	s->ahead_behind_flags = AHEAD_BEHIND_UNSPECIFIED;
162
	s->display_comment_prefix = 0;
163
	s->detect_rename = -1;
164
	s->rename_score = -1;
165
	s->rename_limit = -1;
166
}
167

168
static void wt_longstatus_print_unmerged_header(struct wt_status *s)
169
{
170
	int i;
171
	int del_mod_conflict = 0;
172
	int both_deleted = 0;
173
	int not_deleted = 0;
174
	const char *c = color(WT_STATUS_HEADER, s);
175

176
	status_printf_ln(s, c, _("Unmerged paths:"));
177

178
	for (i = 0; i < s->change.nr; i++) {
179
		struct string_list_item *it = &(s->change.items[i]);
180
		struct wt_status_change_data *d = it->util;
181

182
		switch (d->stagemask) {
183
		case 0:
184
			break;
185
		case 1:
186
			both_deleted = 1;
187
			break;
188
		case 3:
189
		case 5:
190
			del_mod_conflict = 1;
191
			break;
192
		default:
193
			not_deleted = 1;
194
			break;
195
		}
196
	}
197

198
	if (!s->hints)
199
		return;
200
	if (s->whence != FROM_COMMIT)
201
		;
202
	else if (!s->is_initial) {
203
		if (!strcmp(s->reference, "HEAD"))
204
			status_printf_ln(s, c,
205
					 _("  (use \"git restore --staged <file>...\" to unstage)"));
206
		else
207
			status_printf_ln(s, c,
208
					 _("  (use \"git restore --source=%s --staged <file>...\" to unstage)"),
209
					 s->reference);
210
	} else
211
		status_printf_ln(s, c, _("  (use \"git rm --cached <file>...\" to unstage)"));
212

213
	if (!both_deleted) {
214
		if (!del_mod_conflict)
215
			status_printf_ln(s, c, _("  (use \"git add <file>...\" to mark resolution)"));
216
		else
217
			status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" as appropriate to mark resolution)"));
218
	} else if (!del_mod_conflict && !not_deleted) {
219
		status_printf_ln(s, c, _("  (use \"git rm <file>...\" to mark resolution)"));
220
	} else {
221
		status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" as appropriate to mark resolution)"));
222
	}
223
}
224

225
static void wt_longstatus_print_cached_header(struct wt_status *s)
226
{
227
	const char *c = color(WT_STATUS_HEADER, s);
228

229
	status_printf_ln(s, c, _("Changes to be committed:"));
230
	if (!s->hints)
231
		return;
232
	if (s->whence != FROM_COMMIT)
233
		; /* NEEDSWORK: use "git reset --unresolve"??? */
234
	else if (!s->is_initial) {
235
		if (!strcmp(s->reference, "HEAD"))
236
			status_printf_ln(s, c
237
					 , _("  (use \"git restore --staged <file>...\" to unstage)"));
238
		else
239
			status_printf_ln(s, c,
240
					 _("  (use \"git restore --source=%s --staged <file>...\" to unstage)"),
241
					 s->reference);
242
	} else
243
		status_printf_ln(s, c, _("  (use \"git rm --cached <file>...\" to unstage)"));
244
}
245

246
static void wt_longstatus_print_dirty_header(struct wt_status *s,
247
					     int has_deleted,
248
					     int has_dirty_submodules)
249
{
250
	const char *c = color(WT_STATUS_HEADER, s);
251

252
	status_printf_ln(s, c, _("Changes not staged for commit:"));
253
	if (!s->hints)
254
		return;
255
	if (!has_deleted)
256
		status_printf_ln(s, c, _("  (use \"git add <file>...\" to update what will be committed)"));
257
	else
258
		status_printf_ln(s, c, _("  (use \"git add/rm <file>...\" to update what will be committed)"));
259
	status_printf_ln(s, c, _("  (use \"git restore <file>...\" to discard changes in working directory)"));
260
	if (has_dirty_submodules)
261
		status_printf_ln(s, c, _("  (commit or discard the untracked or modified content in submodules)"));
262
}
263

264
static void wt_longstatus_print_other_header(struct wt_status *s,
265
					     const char *what,
266
					     const char *how)
267
{
268
	const char *c = color(WT_STATUS_HEADER, s);
269
	status_printf_ln(s, c, "%s:", what);
270
	if (!s->hints)
271
		return;
272
	status_printf_ln(s, c, _("  (use \"git %s <file>...\" to include in what will be committed)"), how);
273
}
274

275
static void wt_longstatus_print_trailer(struct wt_status *s)
276
{
277
	status_printf_ln(s, color(WT_STATUS_HEADER, s), "%s", "");
278
}
279

280
static const char *wt_status_unmerged_status_string(int stagemask)
281
{
282
	switch (stagemask) {
283
	case 1:
284
		return _("both deleted:");
285
	case 2:
286
		return _("added by us:");
287
	case 3:
288
		return _("deleted by them:");
289
	case 4:
290
		return _("added by them:");
291
	case 5:
292
		return _("deleted by us:");
293
	case 6:
294
		return _("both added:");
295
	case 7:
296
		return _("both modified:");
297
	default:
298
		BUG("unhandled unmerged status %x", stagemask);
299
	}
300
}
301

302
static const char *wt_status_diff_status_string(int status)
303
{
304
	switch (status) {
305
	case DIFF_STATUS_ADDED:
306
		return _("new file:");
307
	case DIFF_STATUS_COPIED:
308
		return _("copied:");
309
	case DIFF_STATUS_DELETED:
310
		return _("deleted:");
311
	case DIFF_STATUS_MODIFIED:
312
		return _("modified:");
313
	case DIFF_STATUS_RENAMED:
314
		return _("renamed:");
315
	case DIFF_STATUS_TYPE_CHANGED:
316
		return _("typechange:");
317
	case DIFF_STATUS_UNKNOWN:
318
		return _("unknown:");
319
	case DIFF_STATUS_UNMERGED:
320
		return _("unmerged:");
321
	default:
322
		return NULL;
323
	}
324
}
325

326
static int maxwidth(const char *(*label)(int), int minval, int maxval)
327
{
328
	int result = 0, i;
329

330
	for (i = minval; i <= maxval; i++) {
331
		const char *s = label(i);
332
		int len = s ? utf8_strwidth(s) : 0;
333
		if (len > result)
334
			result = len;
335
	}
336
	return result;
337
}
338

339
static void wt_longstatus_print_unmerged_data(struct wt_status *s,
340
					      struct string_list_item *it)
341
{
342
	const char *c = color(WT_STATUS_UNMERGED, s);
343
	struct wt_status_change_data *d = it->util;
344
	struct strbuf onebuf = STRBUF_INIT;
345
	static char *padding;
346
	static int label_width;
347
	const char *one, *how;
348
	int len;
349

350
	if (!padding) {
351
		label_width = maxwidth(wt_status_unmerged_status_string, 1, 7);
352
		label_width += strlen(" ");
353
		padding = xmallocz(label_width);
354
		memset(padding, ' ', label_width);
355
	}
356

357
	one = quote_path(it->string, s->prefix, &onebuf, 0);
358
	status_printf(s, color(WT_STATUS_HEADER, s), "\t");
359

360
	how = wt_status_unmerged_status_string(d->stagemask);
361
	len = label_width - utf8_strwidth(how);
362
	status_printf_more(s, c, "%s%.*s%s\n", how, len, padding, one);
363
	strbuf_release(&onebuf);
364
}
365

366
static void wt_longstatus_print_change_data(struct wt_status *s,
367
					    int change_type,
368
					    struct string_list_item *it)
369
{
370
	struct wt_status_change_data *d = it->util;
371
	const char *c = color(change_type, s);
372
	int status;
373
	char *one_name;
374
	char *two_name;
375
	const char *one, *two;
376
	struct strbuf onebuf = STRBUF_INIT, twobuf = STRBUF_INIT;
377
	struct strbuf extra = STRBUF_INIT;
378
	static char *padding;
379
	static int label_width;
380
	const char *what;
381
	int len;
382

383
	if (!padding) {
384
		/* If DIFF_STATUS_* uses outside the range [A..Z], we're in trouble */
385
		label_width = maxwidth(wt_status_diff_status_string, 'A', 'Z');
386
		label_width += strlen(" ");
387
		padding = xmallocz(label_width);
388
		memset(padding, ' ', label_width);
389
	}
390

391
	one_name = two_name = it->string;
392
	switch (change_type) {
393
	case WT_STATUS_UPDATED:
394
		status = d->index_status;
395
		break;
396
	case WT_STATUS_CHANGED:
397
		if (d->new_submodule_commits || d->dirty_submodule) {
398
			strbuf_addstr(&extra, " (");
399
			if (d->new_submodule_commits)
400
				strbuf_addstr(&extra, _("new commits, "));
401
			if (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED)
402
				strbuf_addstr(&extra, _("modified content, "));
403
			if (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED)
404
				strbuf_addstr(&extra, _("untracked content, "));
405
			strbuf_setlen(&extra, extra.len - 2);
406
			strbuf_addch(&extra, ')');
407
		}
408
		status = d->worktree_status;
409
		break;
410
	default:
411
		BUG("unhandled change_type %d in wt_longstatus_print_change_data",
412
		    change_type);
413
	}
414

415
	/*
416
	 * Only pick up the rename it's relevant. If the rename is for
417
	 * the changed section and we're printing the updated section,
418
	 * ignore it.
419
	 */
420
	if (d->rename_status == status)
421
		one_name = d->rename_source;
422

423
	one = quote_path(one_name, s->prefix, &onebuf, 0);
424
	two = quote_path(two_name, s->prefix, &twobuf, 0);
425

426
	status_printf(s, color(WT_STATUS_HEADER, s), "\t");
427
	what = wt_status_diff_status_string(status);
428
	if (!what)
429
		BUG("unhandled diff status %c", status);
430
	len = label_width - utf8_strwidth(what);
431
	assert(len >= 0);
432
	if (one_name != two_name)
433
		status_printf_more(s, c, "%s%.*s%s -> %s",
434
				   what, len, padding, one, two);
435
	else
436
		status_printf_more(s, c, "%s%.*s%s",
437
				   what, len, padding, one);
438
	if (extra.len) {
439
		status_printf_more(s, color(WT_STATUS_HEADER, s), "%s", extra.buf);
440
		strbuf_release(&extra);
441
	}
442
	status_printf_more(s, GIT_COLOR_NORMAL, "\n");
443
	strbuf_release(&onebuf);
444
	strbuf_release(&twobuf);
445
}
446

447
static char short_submodule_status(struct wt_status_change_data *d)
448
{
449
	if (d->new_submodule_commits)
450
		return 'M';
451
	if (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED)
452
		return 'm';
453
	if (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED)
454
		return '?';
455
	return d->worktree_status;
456
}
457

458
static void wt_status_collect_changed_cb(struct diff_queue_struct *q,
459
					 struct diff_options *options UNUSED,
460
					 void *data)
461
{
462
	struct wt_status *s = data;
463
	int i;
464

465
	if (!q->nr)
466
		return;
467
	s->workdir_dirty = 1;
468
	for (i = 0; i < q->nr; i++) {
469
		struct diff_filepair *p;
470
		struct string_list_item *it;
471
		struct wt_status_change_data *d;
472

473
		p = q->queue[i];
474
		it = string_list_insert(&s->change, p->two->path);
475
		d = it->util;
476
		if (!d) {
477
			CALLOC_ARRAY(d, 1);
478
			it->util = d;
479
		}
480
		if (!d->worktree_status)
481
			d->worktree_status = p->status;
482
		if (S_ISGITLINK(p->two->mode)) {
483
			d->dirty_submodule = p->two->dirty_submodule;
484
			d->new_submodule_commits = !oideq(&p->one->oid,
485
							  &p->two->oid);
486
			if (s->status_format == STATUS_FORMAT_SHORT)
487
				d->worktree_status = short_submodule_status(d);
488
		}
489

490
		switch (p->status) {
491
		case DIFF_STATUS_ADDED:
492
			d->mode_worktree = p->two->mode;
493
			break;
494

495
		case DIFF_STATUS_DELETED:
496
			d->mode_index = p->one->mode;
497
			oidcpy(&d->oid_index, &p->one->oid);
498
			/* mode_worktree is zero for a delete. */
499
			break;
500

501
		case DIFF_STATUS_COPIED:
502
		case DIFF_STATUS_RENAMED:
503
			if (d->rename_status)
504
				BUG("multiple renames on the same target? how?");
505
			d->rename_source = xstrdup(p->one->path);
506
			d->rename_score = p->score * 100 / MAX_SCORE;
507
			d->rename_status = p->status;
508
			/* fallthru */
509
		case DIFF_STATUS_MODIFIED:
510
		case DIFF_STATUS_TYPE_CHANGED:
511
		case DIFF_STATUS_UNMERGED:
512
			d->mode_index = p->one->mode;
513
			d->mode_worktree = p->two->mode;
514
			oidcpy(&d->oid_index, &p->one->oid);
515
			break;
516

517
		default:
518
			BUG("unhandled diff-files status '%c'", p->status);
519
			break;
520
		}
521

522
	}
523
}
524

525
static int unmerged_mask(struct index_state *istate, const char *path)
526
{
527
	int pos, mask;
528
	const struct cache_entry *ce;
529

530
	pos = index_name_pos(istate, path, strlen(path));
531
	if (0 <= pos)
532
		return 0;
533

534
	mask = 0;
535
	pos = -pos-1;
536
	while (pos < istate->cache_nr) {
537
		ce = istate->cache[pos++];
538
		if (strcmp(ce->name, path) || !ce_stage(ce))
539
			break;
540
		mask |= (1 << (ce_stage(ce) - 1));
541
	}
542
	return mask;
543
}
544

545
static void wt_status_collect_updated_cb(struct diff_queue_struct *q,
546
					 struct diff_options *options UNUSED,
547
					 void *data)
548
{
549
	struct wt_status *s = data;
550
	int i;
551

552
	for (i = 0; i < q->nr; i++) {
553
		struct diff_filepair *p;
554
		struct string_list_item *it;
555
		struct wt_status_change_data *d;
556

557
		p = q->queue[i];
558
		it = string_list_insert(&s->change, p->two->path);
559
		d = it->util;
560
		if (!d) {
561
			CALLOC_ARRAY(d, 1);
562
			it->util = d;
563
		}
564
		if (!d->index_status)
565
			d->index_status = p->status;
566
		switch (p->status) {
567
		case DIFF_STATUS_ADDED:
568
			/* Leave {mode,oid}_head zero for an add. */
569
			d->mode_index = p->two->mode;
570
			oidcpy(&d->oid_index, &p->two->oid);
571
			s->committable = 1;
572
			break;
573
		case DIFF_STATUS_DELETED:
574
			d->mode_head = p->one->mode;
575
			oidcpy(&d->oid_head, &p->one->oid);
576
			s->committable = 1;
577
			/* Leave {mode,oid}_index zero for a delete. */
578
			break;
579

580
		case DIFF_STATUS_COPIED:
581
		case DIFF_STATUS_RENAMED:
582
			if (d->rename_status)
583
				BUG("multiple renames on the same target? how?");
584
			d->rename_source = xstrdup(p->one->path);
585
			d->rename_score = p->score * 100 / MAX_SCORE;
586
			d->rename_status = p->status;
587
			/* fallthru */
588
		case DIFF_STATUS_MODIFIED:
589
		case DIFF_STATUS_TYPE_CHANGED:
590
			d->mode_head = p->one->mode;
591
			d->mode_index = p->two->mode;
592
			oidcpy(&d->oid_head, &p->one->oid);
593
			oidcpy(&d->oid_index, &p->two->oid);
594
			s->committable = 1;
595
			break;
596
		case DIFF_STATUS_UNMERGED:
597
			d->stagemask = unmerged_mask(s->repo->index,
598
						     p->two->path);
599
			/*
600
			 * Don't bother setting {mode,oid}_{head,index} since the print
601
			 * code will output the stage values directly and not use the
602
			 * values in these fields.
603
			 */
604
			break;
605

606
		default:
607
			BUG("unhandled diff-index status '%c'", p->status);
608
			break;
609
		}
610
	}
611
}
612

613
static void wt_status_collect_changes_worktree(struct wt_status *s)
614
{
615
	struct rev_info rev;
616

617
	repo_init_revisions(s->repo, &rev, NULL);
618
	setup_revisions(0, NULL, &rev, NULL);
619
	rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
620
	rev.diffopt.flags.dirty_submodules = 1;
621
	rev.diffopt.ita_invisible_in_index = 1;
622
	if (!s->show_untracked_files)
623
		rev.diffopt.flags.ignore_untracked_in_submodules = 1;
624
	if (s->ignore_submodule_arg) {
625
		rev.diffopt.flags.override_submodule_config = 1;
626
		handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
627
	} else if (!rev.diffopt.flags.ignore_submodule_set &&
628
			s->show_untracked_files != SHOW_NO_UNTRACKED_FILES)
629
		handle_ignore_submodules_arg(&rev.diffopt, "none");
630
	rev.diffopt.format_callback = wt_status_collect_changed_cb;
631
	rev.diffopt.format_callback_data = s;
632
	rev.diffopt.detect_rename = s->detect_rename >= 0 ? s->detect_rename : rev.diffopt.detect_rename;
633
	rev.diffopt.rename_limit = s->rename_limit >= 0 ? s->rename_limit : rev.diffopt.rename_limit;
634
	rev.diffopt.rename_score = s->rename_score >= 0 ? s->rename_score : rev.diffopt.rename_score;
635
	copy_pathspec(&rev.prune_data, &s->pathspec);
636
	run_diff_files(&rev, 0);
637
	release_revisions(&rev);
638
}
639

640
static void wt_status_collect_changes_index(struct wt_status *s)
641
{
642
	struct rev_info rev;
643
	struct setup_revision_opt opt;
644

645
	repo_init_revisions(s->repo, &rev, NULL);
646
	memset(&opt, 0, sizeof(opt));
647
	opt.def = s->is_initial ? empty_tree_oid_hex(the_repository->hash_algo) : s->reference;
648
	setup_revisions(0, NULL, &rev, &opt);
649

650
	rev.diffopt.flags.override_submodule_config = 1;
651
	rev.diffopt.ita_invisible_in_index = 1;
652
	if (s->ignore_submodule_arg) {
653
		handle_ignore_submodules_arg(&rev.diffopt, s->ignore_submodule_arg);
654
	} else {
655
		/*
656
		 * Unless the user did explicitly request a submodule ignore
657
		 * mode by passing a command line option we do not ignore any
658
		 * changed submodule SHA-1s when comparing index and HEAD, no
659
		 * matter what is configured. Otherwise the user won't be
660
		 * shown any submodules manually added (and which are
661
		 * staged to be committed), which would be really confusing.
662
		 */
663
		handle_ignore_submodules_arg(&rev.diffopt, "dirty");
664
	}
665

666
	rev.diffopt.output_format |= DIFF_FORMAT_CALLBACK;
667
	rev.diffopt.format_callback = wt_status_collect_updated_cb;
668
	rev.diffopt.format_callback_data = s;
669
	rev.diffopt.detect_rename = s->detect_rename >= 0 ? s->detect_rename : rev.diffopt.detect_rename;
670
	rev.diffopt.rename_limit = s->rename_limit >= 0 ? s->rename_limit : rev.diffopt.rename_limit;
671
	rev.diffopt.rename_score = s->rename_score >= 0 ? s->rename_score : rev.diffopt.rename_score;
672

673
	/*
674
	 * The `recursive` option must be enabled to allow the diff to recurse
675
	 * into subdirectories of sparse directory index entries. If it is not
676
	 * enabled, a subdirectory containing file(s) with changes is reported
677
	 * as "modified", rather than the modified files themselves.
678
	 */
679
	rev.diffopt.flags.recursive = 1;
680

681
	copy_pathspec(&rev.prune_data, &s->pathspec);
682
	run_diff_index(&rev, DIFF_INDEX_CACHED);
683
	release_revisions(&rev);
684
}
685

686
static int add_file_to_list(const struct object_id *oid,
687
			    struct strbuf *base, const char *path,
688
			    unsigned int mode, void *context)
689
{
690
	struct string_list_item *it;
691
	struct wt_status_change_data *d;
692
	struct wt_status *s = context;
693
	struct strbuf full_name = STRBUF_INIT;
694

695
	if (S_ISDIR(mode))
696
		return READ_TREE_RECURSIVE;
697

698
	strbuf_add(&full_name, base->buf, base->len);
699
	strbuf_addstr(&full_name, path);
700
	it = string_list_insert(&s->change, full_name.buf);
701
	d = it->util;
702
	if (!d) {
703
		CALLOC_ARRAY(d, 1);
704
		it->util = d;
705
	}
706

707
	d->index_status = DIFF_STATUS_ADDED;
708
	/* Leave {mode,oid}_head zero for adds. */
709
	d->mode_index = mode;
710
	oidcpy(&d->oid_index, oid);
711
	s->committable = 1;
712
	strbuf_release(&full_name);
713
	return 0;
714
}
715

716
static void wt_status_collect_changes_initial(struct wt_status *s)
717
{
718
	struct index_state *istate = s->repo->index;
719
	int i;
720

721
	for (i = 0; i < istate->cache_nr; i++) {
722
		struct string_list_item *it;
723
		struct wt_status_change_data *d;
724
		const struct cache_entry *ce = istate->cache[i];
725

726
		if (!ce_path_match(istate, ce, &s->pathspec, NULL))
727
			continue;
728
		if (ce_intent_to_add(ce))
729
			continue;
730
		if (S_ISSPARSEDIR(ce->ce_mode)) {
731
			/*
732
			 * This is a sparse directory entry, so we want to collect all
733
			 * of the added files within the tree. This requires recursively
734
			 * expanding the trees to find the elements that are new in this
735
			 * tree and marking them with DIFF_STATUS_ADDED.
736
			 */
737
			struct strbuf base = STRBUF_INIT;
738
			struct pathspec ps = { 0 };
739
			struct tree *tree = lookup_tree(istate->repo, &ce->oid);
740

741
			ps.recursive = 1;
742
			ps.has_wildcard = 1;
743
			ps.max_depth = -1;
744

745
			strbuf_add(&base, ce->name, ce->ce_namelen);
746
			read_tree_at(istate->repo, tree, &base, 0, &ps,
747
				     add_file_to_list, s);
748
			continue;
749
		}
750

751
		it = string_list_insert(&s->change, ce->name);
752
		d = it->util;
753
		if (!d) {
754
			CALLOC_ARRAY(d, 1);
755
			it->util = d;
756
		}
757
		if (ce_stage(ce)) {
758
			d->index_status = DIFF_STATUS_UNMERGED;
759
			d->stagemask |= (1 << (ce_stage(ce) - 1));
760
			/*
761
			 * Don't bother setting {mode,oid}_{head,index} since the print
762
			 * code will output the stage values directly and not use the
763
			 * values in these fields.
764
			 */
765
			s->committable = 1;
766
		} else {
767
			d->index_status = DIFF_STATUS_ADDED;
768
			/* Leave {mode,oid}_head zero for adds. */
769
			d->mode_index = ce->ce_mode;
770
			oidcpy(&d->oid_index, &ce->oid);
771
			s->committable = 1;
772
		}
773
	}
774
}
775

776
static void wt_status_collect_untracked(struct wt_status *s)
777
{
778
	int i;
779
	struct dir_struct dir = DIR_INIT;
780
	uint64_t t_begin = getnanotime();
781
	struct index_state *istate = s->repo->index;
782

783
	if (!s->show_untracked_files)
784
		return;
785

786
	if (s->show_untracked_files != SHOW_ALL_UNTRACKED_FILES)
787
		dir.flags |=
788
			DIR_SHOW_OTHER_DIRECTORIES | DIR_HIDE_EMPTY_DIRECTORIES;
789
	if (s->show_ignored_mode) {
790
		dir.flags |= DIR_SHOW_IGNORED_TOO;
791

792
		if (s->show_ignored_mode == SHOW_MATCHING_IGNORED)
793
			dir.flags |= DIR_SHOW_IGNORED_TOO_MODE_MATCHING;
794
	} else {
795
		dir.untracked = istate->untracked;
796
	}
797

798
	setup_standard_excludes(&dir);
799

800
	fill_directory(&dir, istate, &s->pathspec);
801

802
	for (i = 0; i < dir.nr; i++) {
803
		struct dir_entry *ent = dir.entries[i];
804
		if (index_name_is_other(istate, ent->name, ent->len))
805
			string_list_insert(&s->untracked, ent->name);
806
	}
807

808
	for (i = 0; i < dir.ignored_nr; i++) {
809
		struct dir_entry *ent = dir.ignored[i];
810
		if (index_name_is_other(istate, ent->name, ent->len))
811
			string_list_insert(&s->ignored, ent->name);
812
	}
813

814
	dir_clear(&dir);
815

816
	if (advice_enabled(ADVICE_STATUS_U_OPTION))
817
		s->untracked_in_ms = (getnanotime() - t_begin) / 1000000;
818
}
819

820
static int has_unmerged(struct wt_status *s)
821
{
822
	int i;
823

824
	for (i = 0; i < s->change.nr; i++) {
825
		struct wt_status_change_data *d;
826
		d = s->change.items[i].util;
827
		if (d->stagemask)
828
			return 1;
829
	}
830
	return 0;
831
}
832

833
void wt_status_collect(struct wt_status *s)
834
{
835
	trace2_region_enter("status", "worktrees", s->repo);
836
	wt_status_collect_changes_worktree(s);
837
	trace2_region_leave("status", "worktrees", s->repo);
838

839
	if (s->is_initial) {
840
		trace2_region_enter("status", "initial", s->repo);
841
		wt_status_collect_changes_initial(s);
842
		trace2_region_leave("status", "initial", s->repo);
843
	} else {
844
		trace2_region_enter("status", "index", s->repo);
845
		wt_status_collect_changes_index(s);
846
		trace2_region_leave("status", "index", s->repo);
847
	}
848

849
	trace2_region_enter("status", "untracked", s->repo);
850
	wt_status_collect_untracked(s);
851
	trace2_region_leave("status", "untracked", s->repo);
852

853
	wt_status_get_state(s->repo, &s->state, s->branch && !strcmp(s->branch, "HEAD"));
854
	if (s->state.merge_in_progress && !has_unmerged(s))
855
		s->committable = 1;
856
}
857

858
void wt_status_collect_free_buffers(struct wt_status *s)
859
{
860
	wt_status_state_free_buffers(&s->state);
861
}
862

863
void wt_status_state_free_buffers(struct wt_status_state *state)
864
{
865
	FREE_AND_NULL(state->branch);
866
	FREE_AND_NULL(state->onto);
867
	FREE_AND_NULL(state->detached_from);
868
	FREE_AND_NULL(state->bisecting_from);
869
}
870

871
static void wt_longstatus_print_unmerged(struct wt_status *s)
872
{
873
	int shown_header = 0;
874
	int i;
875

876
	for (i = 0; i < s->change.nr; i++) {
877
		struct wt_status_change_data *d;
878
		struct string_list_item *it;
879
		it = &(s->change.items[i]);
880
		d = it->util;
881
		if (!d->stagemask)
882
			continue;
883
		if (!shown_header) {
884
			wt_longstatus_print_unmerged_header(s);
885
			shown_header = 1;
886
		}
887
		wt_longstatus_print_unmerged_data(s, it);
888
	}
889
	if (shown_header)
890
		wt_longstatus_print_trailer(s);
891

892
}
893

894
static void wt_longstatus_print_updated(struct wt_status *s)
895
{
896
	int shown_header = 0;
897
	int i;
898

899
	for (i = 0; i < s->change.nr; i++) {
900
		struct wt_status_change_data *d;
901
		struct string_list_item *it;
902
		it = &(s->change.items[i]);
903
		d = it->util;
904
		if (!d->index_status ||
905
		    d->index_status == DIFF_STATUS_UNMERGED)
906
			continue;
907
		if (!shown_header) {
908
			wt_longstatus_print_cached_header(s);
909
			shown_header = 1;
910
		}
911
		wt_longstatus_print_change_data(s, WT_STATUS_UPDATED, it);
912
	}
913
	if (shown_header)
914
		wt_longstatus_print_trailer(s);
915
}
916

917
/*
918
 * -1 : has delete
919
 *  0 : no change
920
 *  1 : some change but no delete
921
 */
922
static int wt_status_check_worktree_changes(struct wt_status *s,
923
					     int *dirty_submodules)
924
{
925
	int i;
926
	int changes = 0;
927

928
	*dirty_submodules = 0;
929

930
	for (i = 0; i < s->change.nr; i++) {
931
		struct wt_status_change_data *d;
932
		d = s->change.items[i].util;
933
		if (!d->worktree_status ||
934
		    d->worktree_status == DIFF_STATUS_UNMERGED)
935
			continue;
936
		if (!changes)
937
			changes = 1;
938
		if (d->dirty_submodule)
939
			*dirty_submodules = 1;
940
		if (d->worktree_status == DIFF_STATUS_DELETED)
941
			changes = -1;
942
	}
943
	return changes;
944
}
945

946
static void wt_longstatus_print_changed(struct wt_status *s)
947
{
948
	int i, dirty_submodules;
949
	int worktree_changes = wt_status_check_worktree_changes(s, &dirty_submodules);
950

951
	if (!worktree_changes)
952
		return;
953

954
	wt_longstatus_print_dirty_header(s, worktree_changes < 0, dirty_submodules);
955

956
	for (i = 0; i < s->change.nr; i++) {
957
		struct wt_status_change_data *d;
958
		struct string_list_item *it;
959
		it = &(s->change.items[i]);
960
		d = it->util;
961
		if (!d->worktree_status ||
962
		    d->worktree_status == DIFF_STATUS_UNMERGED)
963
			continue;
964
		wt_longstatus_print_change_data(s, WT_STATUS_CHANGED, it);
965
	}
966
	wt_longstatus_print_trailer(s);
967
}
968

969
static int stash_count_refs(struct object_id *ooid UNUSED,
970
			    struct object_id *noid UNUSED,
971
			    const char *email UNUSED,
972
			    timestamp_t timestamp UNUSED, int tz UNUSED,
973
			    const char *message UNUSED, void *cb_data)
974
{
975
	int *c = cb_data;
976
	(*c)++;
977
	return 0;
978
}
979

980
static int count_stash_entries(void)
981
{
982
	int n = 0;
983
	refs_for_each_reflog_ent(get_main_ref_store(the_repository),
984
				 "refs/stash", stash_count_refs, &n);
985
	return n;
986
}
987

988
static void wt_longstatus_print_stash_summary(struct wt_status *s)
989
{
990
	int stash_count = count_stash_entries();
991

992
	if (stash_count > 0)
993
		status_printf_ln(s, GIT_COLOR_NORMAL,
994
				 Q_("Your stash currently has %d entry",
995
				    "Your stash currently has %d entries", stash_count),
996
				 stash_count);
997
}
998

999
static void wt_longstatus_print_submodule_summary(struct wt_status *s, int uncommitted)
1000
{
1001
	struct child_process sm_summary = CHILD_PROCESS_INIT;
1002
	struct strbuf cmd_stdout = STRBUF_INIT;
1003
	struct strbuf summary = STRBUF_INIT;
1004
	char *summary_content;
1005

1006
	strvec_pushf(&sm_summary.env, "GIT_INDEX_FILE=%s", s->index_file);
1007

1008
	strvec_push(&sm_summary.args, "submodule");
1009
	strvec_push(&sm_summary.args, "summary");
1010
	strvec_push(&sm_summary.args, uncommitted ? "--files" : "--cached");
1011
	strvec_push(&sm_summary.args, "--for-status");
1012
	strvec_push(&sm_summary.args, "--summary-limit");
1013
	strvec_pushf(&sm_summary.args, "%d", s->submodule_summary);
1014
	if (!uncommitted)
1015
		strvec_push(&sm_summary.args, s->amend ? "HEAD^" : "HEAD");
1016

1017
	sm_summary.git_cmd = 1;
1018
	sm_summary.no_stdin = 1;
1019

1020
	capture_command(&sm_summary, &cmd_stdout, 1024);
1021

1022
	/* prepend header, only if there's an actual output */
1023
	if (cmd_stdout.len) {
1024
		if (uncommitted)
1025
			strbuf_addstr(&summary, _("Submodules changed but not updated:"));
1026
		else
1027
			strbuf_addstr(&summary, _("Submodule changes to be committed:"));
1028
		strbuf_addstr(&summary, "\n\n");
1029
	}
1030
	strbuf_addbuf(&summary, &cmd_stdout);
1031
	strbuf_release(&cmd_stdout);
1032

1033
	if (s->display_comment_prefix) {
1034
		size_t len;
1035
		summary_content = strbuf_detach(&summary, &len);
1036
		strbuf_add_commented_lines(&summary, summary_content, len, comment_line_str);
1037
		free(summary_content);
1038
	}
1039

1040
	fputs(summary.buf, s->fp);
1041
	strbuf_release(&summary);
1042
}
1043

1044
static void wt_longstatus_print_other(struct wt_status *s,
1045
				      struct string_list *l,
1046
				      const char *what,
1047
				      const char *how)
1048
{
1049
	int i;
1050
	struct strbuf buf = STRBUF_INIT;
1051
	static struct string_list output = STRING_LIST_INIT_DUP;
1052
	struct column_options copts;
1053

1054
	if (!l->nr)
1055
		return;
1056

1057
	wt_longstatus_print_other_header(s, what, how);
1058

1059
	for (i = 0; i < l->nr; i++) {
1060
		struct string_list_item *it;
1061
		const char *path;
1062
		it = &(l->items[i]);
1063
		path = quote_path(it->string, s->prefix, &buf, 0);
1064
		if (column_active(s->colopts)) {
1065
			string_list_append(&output, path);
1066
			continue;
1067
		}
1068
		status_printf(s, color(WT_STATUS_HEADER, s), "\t");
1069
		status_printf_more(s, color(WT_STATUS_UNTRACKED, s),
1070
				   "%s\n", path);
1071
	}
1072

1073
	strbuf_release(&buf);
1074
	if (!column_active(s->colopts))
1075
		goto conclude;
1076

1077
	strbuf_addf(&buf, "%s%s\t%s",
1078
		    color(WT_STATUS_HEADER, s),
1079
		    s->display_comment_prefix ? "#" : "",
1080
		    color(WT_STATUS_UNTRACKED, s));
1081
	memset(&copts, 0, sizeof(copts));
1082
	copts.padding = 1;
1083
	copts.indent = buf.buf;
1084
	if (want_color(s->use_color))
1085
		copts.nl = GIT_COLOR_RESET "\n";
1086
	print_columns(&output, s->colopts, &copts);
1087
	string_list_clear(&output, 0);
1088
	strbuf_release(&buf);
1089
conclude:
1090
	status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
1091
}
1092

1093
size_t wt_status_locate_end(const char *s, size_t len)
1094
{
1095
	const char *p;
1096
	struct strbuf pattern = STRBUF_INIT;
1097

1098
	strbuf_addf(&pattern, "\n%s %s", comment_line_str, cut_line);
1099
	if (starts_with(s, pattern.buf + 1))
1100
		len = 0;
1101
	else if ((p = strstr(s, pattern.buf))) {
1102
		size_t newlen = p - s + 1;
1103
		if (newlen < len)
1104
			len = newlen;
1105
	}
1106
	strbuf_release(&pattern);
1107
	return len;
1108
}
1109

1110
void wt_status_append_cut_line(struct strbuf *buf)
1111
{
1112
	const char *explanation = _("Do not modify or remove the line above.\nEverything below it will be ignored.");
1113

1114
	strbuf_commented_addf(buf, comment_line_str, "%s", cut_line);
1115
	strbuf_add_commented_lines(buf, explanation, strlen(explanation), comment_line_str);
1116
}
1117

1118
void wt_status_add_cut_line(struct wt_status *s)
1119
{
1120
	struct strbuf buf = STRBUF_INIT;
1121

1122
	if (s->added_cut_line)
1123
		return;
1124
	s->added_cut_line = 1;
1125
	wt_status_append_cut_line(&buf);
1126
	fputs(buf.buf, s->fp);
1127
	strbuf_release(&buf);
1128
}
1129

1130
static void wt_longstatus_print_verbose(struct wt_status *s)
1131
{
1132
	struct rev_info rev;
1133
	struct setup_revision_opt opt;
1134
	int dirty_submodules;
1135
	const char *c = color(WT_STATUS_HEADER, s);
1136

1137
	repo_init_revisions(s->repo, &rev, NULL);
1138
	rev.diffopt.flags.allow_textconv = 1;
1139
	rev.diffopt.ita_invisible_in_index = 1;
1140

1141
	memset(&opt, 0, sizeof(opt));
1142
	opt.def = s->is_initial ? empty_tree_oid_hex(the_repository->hash_algo) : s->reference;
1143
	setup_revisions(0, NULL, &rev, &opt);
1144

1145
	rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
1146
	rev.diffopt.detect_rename = s->detect_rename >= 0 ? s->detect_rename : rev.diffopt.detect_rename;
1147
	rev.diffopt.rename_limit = s->rename_limit >= 0 ? s->rename_limit : rev.diffopt.rename_limit;
1148
	rev.diffopt.rename_score = s->rename_score >= 0 ? s->rename_score : rev.diffopt.rename_score;
1149
	rev.diffopt.file = s->fp;
1150
	rev.diffopt.close_file = 0;
1151
	/*
1152
	 * If we're not going to stdout, then we definitely don't
1153
	 * want color, since we are going to the commit message
1154
	 * file (and even the "auto" setting won't work, since it
1155
	 * will have checked isatty on stdout). But we then do want
1156
	 * to insert the scissor line here to reliably remove the
1157
	 * diff before committing, if we didn't already include one
1158
	 * before.
1159
	 */
1160
	if (s->fp != stdout) {
1161
		rev.diffopt.use_color = 0;
1162
		wt_status_add_cut_line(s);
1163
	}
1164
	if (s->verbose > 1 && s->committable) {
1165
		/* print_updated() printed a header, so do we */
1166
		if (s->fp != stdout)
1167
			wt_longstatus_print_trailer(s);
1168
		status_printf_ln(s, c, _("Changes to be committed:"));
1169
		rev.diffopt.a_prefix = "c/";
1170
		rev.diffopt.b_prefix = "i/";
1171
	} /* else use prefix as per user config */
1172
	run_diff_index(&rev, DIFF_INDEX_CACHED);
1173
	if (s->verbose > 1 &&
1174
	    wt_status_check_worktree_changes(s, &dirty_submodules)) {
1175
		status_printf_ln(s, c,
1176
			"--------------------------------------------------");
1177
		status_printf_ln(s, c, _("Changes not staged for commit:"));
1178
		setup_work_tree();
1179
		rev.diffopt.a_prefix = "i/";
1180
		rev.diffopt.b_prefix = "w/";
1181
		run_diff_files(&rev, 0);
1182
	}
1183
	release_revisions(&rev);
1184
}
1185

1186
static void wt_longstatus_print_tracking(struct wt_status *s)
1187
{
1188
	struct strbuf sb = STRBUF_INIT;
1189
	const char *cp, *ep, *branch_name;
1190
	struct branch *branch;
1191
	uint64_t t_begin = 0;
1192

1193
	assert(s->branch && !s->is_initial);
1194
	if (!skip_prefix(s->branch, "refs/heads/", &branch_name))
1195
		return;
1196
	branch = branch_get(branch_name);
1197

1198
	t_begin = getnanotime();
1199

1200
	if (!format_tracking_info(branch, &sb, s->ahead_behind_flags,
1201
				  !s->commit_template))
1202
		return;
1203

1204
	if (advice_enabled(ADVICE_STATUS_AHEAD_BEHIND_WARNING) &&
1205
	    s->ahead_behind_flags == AHEAD_BEHIND_FULL) {
1206
		uint64_t t_delta_in_ms = (getnanotime() - t_begin) / 1000000;
1207
		if (t_delta_in_ms > AB_DELAY_WARNING_IN_MS) {
1208
			strbuf_addf(&sb, _("\n"
1209
					   "It took %.2f seconds to compute the branch ahead/behind values.\n"
1210
					   "You can use '--no-ahead-behind' to avoid this.\n"),
1211
				    t_delta_in_ms / 1000.0);
1212
		}
1213
	}
1214

1215
	for (cp = sb.buf; (ep = strchr(cp, '\n')) != NULL; cp = ep + 1)
1216
		color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s),
1217
				 "%s%s%.*s",
1218
				 s->display_comment_prefix ? comment_line_str : "",
1219
				 s->display_comment_prefix ? " " : "",
1220
				 (int)(ep - cp), cp);
1221
	if (s->display_comment_prefix)
1222
		color_fprintf_ln(s->fp, color(WT_STATUS_HEADER, s), "%s",
1223
				 comment_line_str);
1224
	else
1225
		fputs("\n", s->fp);
1226
	strbuf_release(&sb);
1227
}
1228

1229
static int uf_was_slow(struct wt_status *s)
1230
{
1231
	if (getenv("GIT_TEST_UF_DELAY_WARNING"))
1232
		s->untracked_in_ms = 3250;
1233
	return UF_DELAY_WARNING_IN_MS < s->untracked_in_ms;
1234
}
1235

1236
static void show_merge_in_progress(struct wt_status *s,
1237
				   const char *color)
1238
{
1239
	if (has_unmerged(s)) {
1240
		status_printf_ln(s, color, _("You have unmerged paths."));
1241
		if (s->hints) {
1242
			status_printf_ln(s, color,
1243
					 _("  (fix conflicts and run \"git commit\")"));
1244
			status_printf_ln(s, color,
1245
					 _("  (use \"git merge --abort\" to abort the merge)"));
1246
		}
1247
	} else {
1248
		status_printf_ln(s, color,
1249
			_("All conflicts fixed but you are still merging."));
1250
		if (s->hints)
1251
			status_printf_ln(s, color,
1252
				_("  (use \"git commit\" to conclude merge)"));
1253
	}
1254
	wt_longstatus_print_trailer(s);
1255
}
1256

1257
static void show_am_in_progress(struct wt_status *s,
1258
				const char *color)
1259
{
1260
	int am_empty_patch;
1261

1262
	status_printf_ln(s, color,
1263
		_("You are in the middle of an am session."));
1264
	if (s->state.am_empty_patch)
1265
		status_printf_ln(s, color,
1266
			_("The current patch is empty."));
1267
	if (s->hints) {
1268
		am_empty_patch = s->state.am_empty_patch;
1269
		if (!am_empty_patch)
1270
			status_printf_ln(s, color,
1271
				_("  (fix conflicts and then run \"git am --continue\")"));
1272
		status_printf_ln(s, color,
1273
			_("  (use \"git am --skip\" to skip this patch)"));
1274
		if (am_empty_patch)
1275
			status_printf_ln(s, color,
1276
				_("  (use \"git am --allow-empty\" to record this patch as an empty commit)"));
1277
		status_printf_ln(s, color,
1278
			_("  (use \"git am --abort\" to restore the original branch)"));
1279
	}
1280
	wt_longstatus_print_trailer(s);
1281
}
1282

1283
static char *read_line_from_git_path(const char *filename)
1284
{
1285
	struct strbuf buf = STRBUF_INIT;
1286
	FILE *fp = fopen_or_warn(git_path("%s", filename), "r");
1287

1288
	if (!fp) {
1289
		strbuf_release(&buf);
1290
		return NULL;
1291
	}
1292
	strbuf_getline_lf(&buf, fp);
1293
	if (!fclose(fp)) {
1294
		return strbuf_detach(&buf, NULL);
1295
	} else {
1296
		strbuf_release(&buf);
1297
		return NULL;
1298
	}
1299
}
1300

1301
static int split_commit_in_progress(struct wt_status *s)
1302
{
1303
	int split_in_progress = 0;
1304
	struct object_id head_oid, orig_head_oid;
1305
	char *rebase_amend, *rebase_orig_head;
1306
	int head_flags, orig_head_flags;
1307

1308
	if ((!s->amend && !s->nowarn && !s->workdir_dirty) ||
1309
	    !s->branch || strcmp(s->branch, "HEAD"))
1310
		return 0;
1311

1312
	if (refs_read_ref_full(get_main_ref_store(the_repository), "HEAD", RESOLVE_REF_READING | RESOLVE_REF_NO_RECURSE,
1313
			       &head_oid, &head_flags) ||
1314
	    refs_read_ref_full(get_main_ref_store(the_repository), "ORIG_HEAD", RESOLVE_REF_READING | RESOLVE_REF_NO_RECURSE,
1315
			       &orig_head_oid, &orig_head_flags))
1316
		return 0;
1317
	if (head_flags & REF_ISSYMREF || orig_head_flags & REF_ISSYMREF)
1318
		return 0;
1319

1320
	rebase_amend = read_line_from_git_path("rebase-merge/amend");
1321
	rebase_orig_head = read_line_from_git_path("rebase-merge/orig-head");
1322

1323
	if (!rebase_amend || !rebase_orig_head)
1324
		; /* fall through, no split in progress */
1325
	else if (!strcmp(rebase_amend, rebase_orig_head))
1326
		split_in_progress = !!strcmp(oid_to_hex(&head_oid), rebase_amend);
1327
	else if (strcmp(oid_to_hex(&orig_head_oid), rebase_orig_head))
1328
		split_in_progress = 1;
1329

1330
	free(rebase_amend);
1331
	free(rebase_orig_head);
1332

1333
	return split_in_progress;
1334
}
1335

1336
/*
1337
 * Turn
1338
 * "pick d6a2f0303e897ec257dd0e0a39a5ccb709bc2047 some message"
1339
 * into
1340
 * "pick d6a2f03 some message"
1341
 *
1342
 * The function assumes that the line does not contain useless spaces
1343
 * before or after the command.
1344
 */
1345
static void abbrev_oid_in_line(struct strbuf *line)
1346
{
1347
	struct strbuf **split;
1348
	int i;
1349

1350
	if (starts_with(line->buf, "exec ") ||
1351
	    starts_with(line->buf, "x ") ||
1352
	    starts_with(line->buf, "label ") ||
1353
	    starts_with(line->buf, "l "))
1354
		return;
1355

1356
	split = strbuf_split_max(line, ' ', 3);
1357
	if (split[0] && split[1]) {
1358
		struct object_id oid;
1359

1360
		/*
1361
		 * strbuf_split_max left a space. Trim it and re-add
1362
		 * it after abbreviation.
1363
		 */
1364
		strbuf_trim(split[1]);
1365
		if (!repo_get_oid(the_repository, split[1]->buf, &oid)) {
1366
			strbuf_reset(split[1]);
1367
			strbuf_add_unique_abbrev(split[1], &oid,
1368
						 DEFAULT_ABBREV);
1369
			strbuf_addch(split[1], ' ');
1370
			strbuf_reset(line);
1371
			for (i = 0; split[i]; i++)
1372
				strbuf_addbuf(line, split[i]);
1373
		}
1374
	}
1375
	strbuf_list_free(split);
1376
}
1377

1378
static int read_rebase_todolist(const char *fname, struct string_list *lines)
1379
{
1380
	struct strbuf line = STRBUF_INIT;
1381
	FILE *f = fopen(git_path("%s", fname), "r");
1382

1383
	if (!f) {
1384
		if (errno == ENOENT)
1385
			return -1;
1386
		die_errno("Could not open file %s for reading",
1387
			  git_path("%s", fname));
1388
	}
1389
	while (!strbuf_getline_lf(&line, f)) {
1390
		if (starts_with(line.buf, comment_line_str))
1391
			continue;
1392
		strbuf_trim(&line);
1393
		if (!line.len)
1394
			continue;
1395
		abbrev_oid_in_line(&line);
1396
		string_list_append(lines, line.buf);
1397
	}
1398
	fclose(f);
1399
	strbuf_release(&line);
1400
	return 0;
1401
}
1402

1403
static void show_rebase_information(struct wt_status *s,
1404
				    const char *color)
1405
{
1406
	if (s->state.rebase_interactive_in_progress) {
1407
		int i;
1408
		int nr_lines_to_show = 2;
1409

1410
		struct string_list have_done = STRING_LIST_INIT_DUP;
1411
		struct string_list yet_to_do = STRING_LIST_INIT_DUP;
1412

1413
		read_rebase_todolist("rebase-merge/done", &have_done);
1414
		if (read_rebase_todolist("rebase-merge/git-rebase-todo",
1415
					 &yet_to_do))
1416
			status_printf_ln(s, color,
1417
				_("git-rebase-todo is missing."));
1418
		if (have_done.nr == 0)
1419
			status_printf_ln(s, color, _("No commands done."));
1420
		else {
1421
			status_printf_ln(s, color,
1422
				Q_("Last command done (%"PRIuMAX" command done):",
1423
					"Last commands done (%"PRIuMAX" commands done):",
1424
					have_done.nr),
1425
				(uintmax_t)have_done.nr);
1426
			for (i = (have_done.nr > nr_lines_to_show)
1427
				? have_done.nr - nr_lines_to_show : 0;
1428
				i < have_done.nr;
1429
				i++)
1430
				status_printf_ln(s, color, "   %s", have_done.items[i].string);
1431
			if (have_done.nr > nr_lines_to_show && s->hints)
1432
				status_printf_ln(s, color,
1433
					_("  (see more in file %s)"), git_path("rebase-merge/done"));
1434
		}
1435

1436
		if (yet_to_do.nr == 0)
1437
			status_printf_ln(s, color,
1438
					 _("No commands remaining."));
1439
		else {
1440
			status_printf_ln(s, color,
1441
				Q_("Next command to do (%"PRIuMAX" remaining command):",
1442
					"Next commands to do (%"PRIuMAX" remaining commands):",
1443
					yet_to_do.nr),
1444
				(uintmax_t)yet_to_do.nr);
1445
			for (i = 0; i < nr_lines_to_show && i < yet_to_do.nr; i++)
1446
				status_printf_ln(s, color, "   %s", yet_to_do.items[i].string);
1447
			if (s->hints)
1448
				status_printf_ln(s, color,
1449
					_("  (use \"git rebase --edit-todo\" to view and edit)"));
1450
		}
1451
		string_list_clear(&yet_to_do, 0);
1452
		string_list_clear(&have_done, 0);
1453
	}
1454
}
1455

1456
static void print_rebase_state(struct wt_status *s,
1457
			       const char *color)
1458
{
1459
	if (s->state.branch)
1460
		status_printf_ln(s, color,
1461
				 _("You are currently rebasing branch '%s' on '%s'."),
1462
				 s->state.branch,
1463
				 s->state.onto);
1464
	else
1465
		status_printf_ln(s, color,
1466
				 _("You are currently rebasing."));
1467
}
1468

1469
static void show_rebase_in_progress(struct wt_status *s,
1470
				    const char *color)
1471
{
1472
	struct stat st;
1473

1474
	show_rebase_information(s, color);
1475
	if (has_unmerged(s)) {
1476
		print_rebase_state(s, color);
1477
		if (s->hints) {
1478
			status_printf_ln(s, color,
1479
				_("  (fix conflicts and then run \"git rebase --continue\")"));
1480
			status_printf_ln(s, color,
1481
				_("  (use \"git rebase --skip\" to skip this patch)"));
1482
			status_printf_ln(s, color,
1483
				_("  (use \"git rebase --abort\" to check out the original branch)"));
1484
		}
1485
	} else if (s->state.rebase_in_progress ||
1486
		   !stat(git_path_merge_msg(s->repo), &st)) {
1487
		print_rebase_state(s, color);
1488
		if (s->hints)
1489
			status_printf_ln(s, color,
1490
				_("  (all conflicts fixed: run \"git rebase --continue\")"));
1491
	} else if (split_commit_in_progress(s)) {
1492
		if (s->state.branch)
1493
			status_printf_ln(s, color,
1494
					 _("You are currently splitting a commit while rebasing branch '%s' on '%s'."),
1495
					 s->state.branch,
1496
					 s->state.onto);
1497
		else
1498
			status_printf_ln(s, color,
1499
					 _("You are currently splitting a commit during a rebase."));
1500
		if (s->hints)
1501
			status_printf_ln(s, color,
1502
				_("  (Once your working directory is clean, run \"git rebase --continue\")"));
1503
	} else {
1504
		if (s->state.branch)
1505
			status_printf_ln(s, color,
1506
					 _("You are currently editing a commit while rebasing branch '%s' on '%s'."),
1507
					 s->state.branch,
1508
					 s->state.onto);
1509
		else
1510
			status_printf_ln(s, color,
1511
					 _("You are currently editing a commit during a rebase."));
1512
		if (s->hints && !s->amend) {
1513
			status_printf_ln(s, color,
1514
				_("  (use \"git commit --amend\" to amend the current commit)"));
1515
			status_printf_ln(s, color,
1516
				_("  (use \"git rebase --continue\" once you are satisfied with your changes)"));
1517
		}
1518
	}
1519
	wt_longstatus_print_trailer(s);
1520
}
1521

1522
static void show_cherry_pick_in_progress(struct wt_status *s,
1523
					 const char *color)
1524
{
1525
	if (is_null_oid(&s->state.cherry_pick_head_oid))
1526
		status_printf_ln(s, color,
1527
			_("Cherry-pick currently in progress."));
1528
	else
1529
		status_printf_ln(s, color,
1530
			_("You are currently cherry-picking commit %s."),
1531
			repo_find_unique_abbrev(the_repository, &s->state.cherry_pick_head_oid,
1532
						DEFAULT_ABBREV));
1533

1534
	if (s->hints) {
1535
		if (has_unmerged(s))
1536
			status_printf_ln(s, color,
1537
				_("  (fix conflicts and run \"git cherry-pick --continue\")"));
1538
		else if (is_null_oid(&s->state.cherry_pick_head_oid))
1539
			status_printf_ln(s, color,
1540
				_("  (run \"git cherry-pick --continue\" to continue)"));
1541
		else
1542
			status_printf_ln(s, color,
1543
				_("  (all conflicts fixed: run \"git cherry-pick --continue\")"));
1544
		status_printf_ln(s, color,
1545
			_("  (use \"git cherry-pick --skip\" to skip this patch)"));
1546
		status_printf_ln(s, color,
1547
			_("  (use \"git cherry-pick --abort\" to cancel the cherry-pick operation)"));
1548
	}
1549
	wt_longstatus_print_trailer(s);
1550
}
1551

1552
static void show_revert_in_progress(struct wt_status *s,
1553
				    const char *color)
1554
{
1555
	if (is_null_oid(&s->state.revert_head_oid))
1556
		status_printf_ln(s, color,
1557
			_("Revert currently in progress."));
1558
	else
1559
		status_printf_ln(s, color,
1560
			_("You are currently reverting commit %s."),
1561
			repo_find_unique_abbrev(the_repository, &s->state.revert_head_oid,
1562
						DEFAULT_ABBREV));
1563
	if (s->hints) {
1564
		if (has_unmerged(s))
1565
			status_printf_ln(s, color,
1566
				_("  (fix conflicts and run \"git revert --continue\")"));
1567
		else if (is_null_oid(&s->state.revert_head_oid))
1568
			status_printf_ln(s, color,
1569
				_("  (run \"git revert --continue\" to continue)"));
1570
		else
1571
			status_printf_ln(s, color,
1572
				_("  (all conflicts fixed: run \"git revert --continue\")"));
1573
		status_printf_ln(s, color,
1574
			_("  (use \"git revert --skip\" to skip this patch)"));
1575
		status_printf_ln(s, color,
1576
			_("  (use \"git revert --abort\" to cancel the revert operation)"));
1577
	}
1578
	wt_longstatus_print_trailer(s);
1579
}
1580

1581
static void show_bisect_in_progress(struct wt_status *s,
1582
				    const char *color)
1583
{
1584
	if (s->state.bisecting_from)
1585
		status_printf_ln(s, color,
1586
				 _("You are currently bisecting, started from branch '%s'."),
1587
				 s->state.bisecting_from);
1588
	else
1589
		status_printf_ln(s, color,
1590
				 _("You are currently bisecting."));
1591
	if (s->hints)
1592
		status_printf_ln(s, color,
1593
			_("  (use \"git bisect reset\" to get back to the original branch)"));
1594
	wt_longstatus_print_trailer(s);
1595
}
1596

1597
static void show_sparse_checkout_in_use(struct wt_status *s,
1598
					const char *color)
1599
{
1600
	if (s->state.sparse_checkout_percentage == SPARSE_CHECKOUT_DISABLED)
1601
		return;
1602

1603
	if (s->state.sparse_checkout_percentage == SPARSE_CHECKOUT_SPARSE_INDEX)
1604
		status_printf_ln(s, color, _("You are in a sparse checkout."));
1605
	else
1606
		status_printf_ln(s, color,
1607
				_("You are in a sparse checkout with %d%% of tracked files present."),
1608
				s->state.sparse_checkout_percentage);
1609
	wt_longstatus_print_trailer(s);
1610
}
1611

1612
/*
1613
 * Extract branch information from rebase/bisect
1614
 */
1615
static char *get_branch(const struct worktree *wt, const char *path)
1616
{
1617
	struct strbuf sb = STRBUF_INIT;
1618
	struct object_id oid;
1619
	const char *branch_name;
1620

1621
	if (strbuf_read_file(&sb, worktree_git_path(the_repository, wt, "%s", path), 0) <= 0)
1622
		goto got_nothing;
1623

1624
	while (sb.len && sb.buf[sb.len - 1] == '\n')
1625
		strbuf_setlen(&sb, sb.len - 1);
1626
	if (!sb.len)
1627
		goto got_nothing;
1628
	if (skip_prefix(sb.buf, "refs/heads/", &branch_name))
1629
		strbuf_remove(&sb, 0, branch_name - sb.buf);
1630
	else if (starts_with(sb.buf, "refs/"))
1631
		;
1632
	else if (!get_oid_hex(sb.buf, &oid)) {
1633
		strbuf_reset(&sb);
1634
		strbuf_add_unique_abbrev(&sb, &oid, DEFAULT_ABBREV);
1635
	} else if (!strcmp(sb.buf, "detached HEAD")) /* rebase */
1636
		goto got_nothing;
1637
	else			/* bisect */
1638
		;
1639
	return strbuf_detach(&sb, NULL);
1640

1641
got_nothing:
1642
	strbuf_release(&sb);
1643
	return NULL;
1644
}
1645

1646
struct grab_1st_switch_cbdata {
1647
	struct strbuf buf;
1648
	struct object_id noid;
1649
};
1650

1651
static int grab_1st_switch(struct object_id *ooid UNUSED,
1652
			   struct object_id *noid,
1653
			   const char *email UNUSED,
1654
			   timestamp_t timestamp UNUSED, int tz UNUSED,
1655
			   const char *message, void *cb_data)
1656
{
1657
	struct grab_1st_switch_cbdata *cb = cb_data;
1658
	const char *target = NULL, *end;
1659

1660
	if (!skip_prefix(message, "checkout: moving from ", &message))
1661
		return 0;
1662
	target = strstr(message, " to ");
1663
	if (!target)
1664
		return 0;
1665
	target += strlen(" to ");
1666
	strbuf_reset(&cb->buf);
1667
	oidcpy(&cb->noid, noid);
1668
	end = strchrnul(target, '\n');
1669
	strbuf_add(&cb->buf, target, end - target);
1670
	if (!strcmp(cb->buf.buf, "HEAD")) {
1671
		/* HEAD is relative. Resolve it to the right reflog entry. */
1672
		strbuf_reset(&cb->buf);
1673
		strbuf_add_unique_abbrev(&cb->buf, noid, DEFAULT_ABBREV);
1674
	}
1675
	return 1;
1676
}
1677

1678
static void wt_status_get_detached_from(struct repository *r,
1679
					struct wt_status_state *state)
1680
{
1681
	struct grab_1st_switch_cbdata cb;
1682
	struct commit *commit;
1683
	struct object_id oid;
1684
	char *ref = NULL;
1685

1686
	strbuf_init(&cb.buf, 0);
1687
	if (refs_for_each_reflog_ent_reverse(get_main_ref_store(the_repository), "HEAD", grab_1st_switch, &cb) <= 0) {
1688
		strbuf_release(&cb.buf);
1689
		return;
1690
	}
1691

1692
	if (repo_dwim_ref(r, cb.buf.buf, cb.buf.len, &oid, &ref,
1693
			  1) == 1 &&
1694
	    /* oid is a commit? match without further lookup */
1695
	    (oideq(&cb.noid, &oid) ||
1696
	     /* perhaps oid is a tag, try to dereference to a commit */
1697
	     ((commit = lookup_commit_reference_gently(r, &oid, 1)) != NULL &&
1698
	      oideq(&cb.noid, &commit->object.oid)))) {
1699
		const char *from = ref;
1700
		if (!skip_prefix(from, "refs/tags/", &from))
1701
			skip_prefix(from, "refs/remotes/", &from);
1702
		state->detached_from = xstrdup(from);
1703
	} else
1704
		state->detached_from =
1705
			xstrdup(repo_find_unique_abbrev(r, &cb.noid, DEFAULT_ABBREV));
1706
	oidcpy(&state->detached_oid, &cb.noid);
1707
	state->detached_at = !repo_get_oid(r, "HEAD", &oid) &&
1708
			     oideq(&oid, &state->detached_oid);
1709

1710
	free(ref);
1711
	strbuf_release(&cb.buf);
1712
}
1713

1714
int wt_status_check_rebase(const struct worktree *wt,
1715
			   struct wt_status_state *state)
1716
{
1717
	struct stat st;
1718

1719
	if (!stat(worktree_git_path(the_repository, wt, "rebase-apply"), &st)) {
1720
		if (!stat(worktree_git_path(the_repository, wt, "rebase-apply/applying"), &st)) {
1721
			state->am_in_progress = 1;
1722
			if (!stat(worktree_git_path(the_repository, wt, "rebase-apply/patch"), &st) && !st.st_size)
1723
				state->am_empty_patch = 1;
1724
		} else {
1725
			state->rebase_in_progress = 1;
1726
			state->branch = get_branch(wt, "rebase-apply/head-name");
1727
			state->onto = get_branch(wt, "rebase-apply/onto");
1728
		}
1729
	} else if (!stat(worktree_git_path(the_repository, wt, "rebase-merge"), &st)) {
1730
		if (!stat(worktree_git_path(the_repository, wt, "rebase-merge/interactive"), &st))
1731
			state->rebase_interactive_in_progress = 1;
1732
		else
1733
			state->rebase_in_progress = 1;
1734
		state->branch = get_branch(wt, "rebase-merge/head-name");
1735
		state->onto = get_branch(wt, "rebase-merge/onto");
1736
	} else
1737
		return 0;
1738
	return 1;
1739
}
1740

1741
int wt_status_check_bisect(const struct worktree *wt,
1742
			   struct wt_status_state *state)
1743
{
1744
	struct stat st;
1745

1746
	if (!stat(worktree_git_path(the_repository, wt, "BISECT_LOG"), &st)) {
1747
		state->bisect_in_progress = 1;
1748
		state->bisecting_from = get_branch(wt, "BISECT_START");
1749
		return 1;
1750
	}
1751
	return 0;
1752
}
1753

1754
static void wt_status_check_sparse_checkout(struct repository *r,
1755
					    struct wt_status_state *state)
1756
{
1757
	int skip_worktree = 0;
1758
	int i;
1759

1760
	if (!core_apply_sparse_checkout || r->index->cache_nr == 0) {
1761
		/*
1762
		 * Don't compute percentage of checked out files if we
1763
		 * aren't in a sparse checkout or would get division by 0.
1764
		 */
1765
		state->sparse_checkout_percentage = SPARSE_CHECKOUT_DISABLED;
1766
		return;
1767
	}
1768

1769
	if (r->index->sparse_index) {
1770
		state->sparse_checkout_percentage = SPARSE_CHECKOUT_SPARSE_INDEX;
1771
		return;
1772
	}
1773

1774
	for (i = 0; i < r->index->cache_nr; i++) {
1775
		struct cache_entry *ce = r->index->cache[i];
1776
		if (ce_skip_worktree(ce))
1777
			skip_worktree++;
1778
	}
1779

1780
	state->sparse_checkout_percentage =
1781
		100 - (100 * skip_worktree)/r->index->cache_nr;
1782
}
1783

1784
void wt_status_get_state(struct repository *r,
1785
			 struct wt_status_state *state,
1786
			 int get_detached_from)
1787
{
1788
	struct stat st;
1789
	struct object_id oid;
1790
	enum replay_action action;
1791

1792
	if (!stat(git_path_merge_head(r), &st)) {
1793
		wt_status_check_rebase(NULL, state);
1794
		state->merge_in_progress = 1;
1795
	} else if (wt_status_check_rebase(NULL, state)) {
1796
		;		/* all set */
1797
	} else if (refs_ref_exists(get_main_ref_store(r), "CHERRY_PICK_HEAD") &&
1798
		   !repo_get_oid(r, "CHERRY_PICK_HEAD", &oid)) {
1799
		state->cherry_pick_in_progress = 1;
1800
		oidcpy(&state->cherry_pick_head_oid, &oid);
1801
	}
1802
	wt_status_check_bisect(NULL, state);
1803
	if (refs_ref_exists(get_main_ref_store(r), "REVERT_HEAD") &&
1804
	    !repo_get_oid(r, "REVERT_HEAD", &oid)) {
1805
		state->revert_in_progress = 1;
1806
		oidcpy(&state->revert_head_oid, &oid);
1807
	}
1808
	if (!sequencer_get_last_command(r, &action)) {
1809
		if (action == REPLAY_PICK && !state->cherry_pick_in_progress) {
1810
			state->cherry_pick_in_progress = 1;
1811
			oidcpy(&state->cherry_pick_head_oid, null_oid());
1812
		} else if (action == REPLAY_REVERT && !state->revert_in_progress) {
1813
			state->revert_in_progress = 1;
1814
			oidcpy(&state->revert_head_oid, null_oid());
1815
		}
1816
	}
1817
	if (get_detached_from)
1818
		wt_status_get_detached_from(r, state);
1819
	wt_status_check_sparse_checkout(r, state);
1820
}
1821

1822
static void wt_longstatus_print_state(struct wt_status *s)
1823
{
1824
	const char *state_color = color(WT_STATUS_HEADER, s);
1825
	struct wt_status_state *state = &s->state;
1826

1827
	if (state->merge_in_progress) {
1828
		if (state->rebase_interactive_in_progress) {
1829
			show_rebase_information(s, state_color);
1830
			fputs("\n", s->fp);
1831
		}
1832
		show_merge_in_progress(s, state_color);
1833
	} else if (state->am_in_progress)
1834
		show_am_in_progress(s, state_color);
1835
	else if (state->rebase_in_progress || state->rebase_interactive_in_progress)
1836
		show_rebase_in_progress(s, state_color);
1837
	else if (state->cherry_pick_in_progress)
1838
		show_cherry_pick_in_progress(s, state_color);
1839
	else if (state->revert_in_progress)
1840
		show_revert_in_progress(s, state_color);
1841
	if (state->bisect_in_progress)
1842
		show_bisect_in_progress(s, state_color);
1843

1844
	if (state->sparse_checkout_percentage != SPARSE_CHECKOUT_DISABLED)
1845
		show_sparse_checkout_in_use(s, state_color);
1846
}
1847

1848
static void wt_longstatus_print(struct wt_status *s)
1849
{
1850
	const char *branch_color = color(WT_STATUS_ONBRANCH, s);
1851
	const char *branch_status_color = color(WT_STATUS_HEADER, s);
1852
	enum fsmonitor_mode fsm_mode = fsm_settings__get_mode(s->repo);
1853

1854
	if (s->branch) {
1855
		const char *on_what = _("On branch ");
1856
		const char *branch_name = s->branch;
1857
		if (!strcmp(branch_name, "HEAD")) {
1858
			branch_status_color = color(WT_STATUS_NOBRANCH, s);
1859
			if (s->state.rebase_in_progress ||
1860
			    s->state.rebase_interactive_in_progress) {
1861
				if (s->state.rebase_interactive_in_progress)
1862
					on_what = _("interactive rebase in progress; onto ");
1863
				else
1864
					on_what = _("rebase in progress; onto ");
1865
				branch_name = s->state.onto;
1866
			} else if (s->state.detached_from) {
1867
				branch_name = s->state.detached_from;
1868
				if (s->state.detached_at)
1869
					on_what = _("HEAD detached at ");
1870
				else
1871
					on_what = _("HEAD detached from ");
1872
			} else {
1873
				branch_name = "";
1874
				on_what = _("Not currently on any branch.");
1875
			}
1876
		} else
1877
			skip_prefix(branch_name, "refs/heads/", &branch_name);
1878
		status_printf(s, color(WT_STATUS_HEADER, s), "%s", "");
1879
		status_printf_more(s, branch_status_color, "%s", on_what);
1880
		status_printf_more(s, branch_color, "%s\n", branch_name);
1881
		if (!s->is_initial)
1882
			wt_longstatus_print_tracking(s);
1883
	}
1884

1885
	wt_longstatus_print_state(s);
1886

1887
	if (s->is_initial) {
1888
		status_printf_ln(s, color(WT_STATUS_HEADER, s), "%s", "");
1889
		status_printf_ln(s, color(WT_STATUS_HEADER, s),
1890
				 s->commit_template
1891
				 ? _("Initial commit")
1892
				 : _("No commits yet"));
1893
		status_printf_ln(s, color(WT_STATUS_HEADER, s), "%s", "");
1894
	}
1895

1896
	wt_longstatus_print_updated(s);
1897
	wt_longstatus_print_unmerged(s);
1898
	wt_longstatus_print_changed(s);
1899
	if (s->submodule_summary &&
1900
	    (!s->ignore_submodule_arg ||
1901
	     strcmp(s->ignore_submodule_arg, "all"))) {
1902
		wt_longstatus_print_submodule_summary(s, 0);  /* staged */
1903
		wt_longstatus_print_submodule_summary(s, 1);  /* unstaged */
1904
	}
1905
	if (s->show_untracked_files) {
1906
		wt_longstatus_print_other(s, &s->untracked, _("Untracked files"), "add");
1907
		if (s->show_ignored_mode)
1908
			wt_longstatus_print_other(s, &s->ignored, _("Ignored files"), "add -f");
1909
		if (advice_enabled(ADVICE_STATUS_U_OPTION) && uf_was_slow(s)) {
1910
			status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
1911
			if (fsm_mode > FSMONITOR_MODE_DISABLED) {
1912
				status_printf_ln(s, GIT_COLOR_NORMAL,
1913
						_("It took %.2f seconds to enumerate untracked files,\n"
1914
						"but the results were cached, and subsequent runs may be faster."),
1915
						s->untracked_in_ms / 1000.0);
1916
			} else {
1917
				status_printf_ln(s, GIT_COLOR_NORMAL,
1918
						_("It took %.2f seconds to enumerate untracked files."),
1919
						s->untracked_in_ms / 1000.0);
1920
			}
1921
			status_printf_ln(s, GIT_COLOR_NORMAL,
1922
					_("See 'git help status' for information on how to improve this."));
1923
			status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
1924
		}
1925
	} else if (s->committable)
1926
		status_printf_ln(s, GIT_COLOR_NORMAL, _("Untracked files not listed%s"),
1927
			s->hints
1928
			? _(" (use -u option to show untracked files)") : "");
1929

1930
	if (s->verbose)
1931
		wt_longstatus_print_verbose(s);
1932
	if (!s->committable) {
1933
		if (s->amend)
1934
			status_printf_ln(s, GIT_COLOR_NORMAL, _("No changes"));
1935
		else if (s->nowarn)
1936
			; /* nothing */
1937
		else if (s->workdir_dirty) {
1938
			if (s->hints)
1939
				fprintf(s->fp, _("no changes added to commit "
1940
						 "(use \"git add\" and/or "
1941
						 "\"git commit -a\")\n"));
1942
			else
1943
				fprintf(s->fp, _("no changes added to "
1944
						 "commit\n"));
1945
		} else if (s->untracked.nr) {
1946
			if (s->hints)
1947
				fprintf(s->fp, _("nothing added to commit but "
1948
						 "untracked files present (use "
1949
						 "\"git add\" to track)\n"));
1950
			else
1951
				fprintf(s->fp, _("nothing added to commit but "
1952
						 "untracked files present\n"));
1953
		} else if (s->is_initial) {
1954
			if (s->hints)
1955
				fprintf(s->fp, _("nothing to commit (create/"
1956
						 "copy files and use \"git "
1957
						 "add\" to track)\n"));
1958
			else
1959
				fprintf(s->fp, _("nothing to commit\n"));
1960
		} else if (!s->show_untracked_files) {
1961
			if (s->hints)
1962
				fprintf(s->fp, _("nothing to commit (use -u to "
1963
						 "show untracked files)\n"));
1964
			else
1965
				fprintf(s->fp, _("nothing to commit\n"));
1966
		} else
1967
			fprintf(s->fp, _("nothing to commit, working tree "
1968
					 "clean\n"));
1969
	}
1970
	if(s->show_stash)
1971
		wt_longstatus_print_stash_summary(s);
1972
}
1973

1974
static void wt_shortstatus_unmerged(struct string_list_item *it,
1975
			   struct wt_status *s)
1976
{
1977
	struct wt_status_change_data *d = it->util;
1978
	const char *how = "??";
1979

1980
	switch (d->stagemask) {
1981
	case 1: how = "DD"; break; /* both deleted */
1982
	case 2: how = "AU"; break; /* added by us */
1983
	case 3: how = "UD"; break; /* deleted by them */
1984
	case 4: how = "UA"; break; /* added by them */
1985
	case 5: how = "DU"; break; /* deleted by us */
1986
	case 6: how = "AA"; break; /* both added */
1987
	case 7: how = "UU"; break; /* both modified */
1988
	}
1989
	color_fprintf(s->fp, color(WT_STATUS_UNMERGED, s), "%s", how);
1990
	if (s->null_termination) {
1991
		fprintf(s->fp, " %s%c", it->string, 0);
1992
	} else {
1993
		struct strbuf onebuf = STRBUF_INIT;
1994
		const char *one;
1995
		one = quote_path(it->string, s->prefix, &onebuf, QUOTE_PATH_QUOTE_SP);
1996
		fprintf(s->fp, " %s\n", one);
1997
		strbuf_release(&onebuf);
1998
	}
1999
}
2000

2001
static void wt_shortstatus_status(struct string_list_item *it,
2002
			 struct wt_status *s)
2003
{
2004
	struct wt_status_change_data *d = it->util;
2005

2006
	if (d->index_status)
2007
		color_fprintf(s->fp, color(WT_STATUS_UPDATED, s), "%c", d->index_status);
2008
	else
2009
		fputc(' ', s->fp);
2010
	if (d->worktree_status)
2011
		color_fprintf(s->fp, color(WT_STATUS_CHANGED, s), "%c", d->worktree_status);
2012
	else
2013
		fputc(' ', s->fp);
2014
	fputc(' ', s->fp);
2015
	if (s->null_termination) {
2016
		fprintf(s->fp, "%s%c", it->string, 0);
2017
		if (d->rename_source)
2018
			fprintf(s->fp, "%s%c", d->rename_source, 0);
2019
	} else {
2020
		struct strbuf onebuf = STRBUF_INIT;
2021
		const char *one;
2022

2023
		if (d->rename_source) {
2024
			one = quote_path(d->rename_source, s->prefix, &onebuf,
2025
					 QUOTE_PATH_QUOTE_SP);
2026
			fprintf(s->fp, "%s -> ", one);
2027
			strbuf_release(&onebuf);
2028
		}
2029
		one = quote_path(it->string, s->prefix, &onebuf, QUOTE_PATH_QUOTE_SP);
2030
		fprintf(s->fp, "%s\n", one);
2031
		strbuf_release(&onebuf);
2032
	}
2033
}
2034

2035
static void wt_shortstatus_other(struct string_list_item *it,
2036
				 struct wt_status *s, const char *sign)
2037
{
2038
	if (s->null_termination) {
2039
		fprintf(s->fp, "%s %s%c", sign, it->string, 0);
2040
	} else {
2041
		struct strbuf onebuf = STRBUF_INIT;
2042
		const char *one;
2043
		one = quote_path(it->string, s->prefix, &onebuf, QUOTE_PATH_QUOTE_SP);
2044
		color_fprintf(s->fp, color(WT_STATUS_UNTRACKED, s), "%s", sign);
2045
		fprintf(s->fp, " %s\n", one);
2046
		strbuf_release(&onebuf);
2047
	}
2048
}
2049

2050
static void wt_shortstatus_print_tracking(struct wt_status *s)
2051
{
2052
	struct branch *branch;
2053
	const char *header_color = color(WT_STATUS_HEADER, s);
2054
	const char *branch_color_local = color(WT_STATUS_LOCAL_BRANCH, s);
2055
	const char *branch_color_remote = color(WT_STATUS_REMOTE_BRANCH, s);
2056

2057
	const char *base;
2058
	char *short_base;
2059
	const char *branch_name;
2060
	int num_ours, num_theirs, sti;
2061
	int upstream_is_gone = 0;
2062

2063
	color_fprintf(s->fp, color(WT_STATUS_HEADER, s), "## ");
2064

2065
	if (!s->branch)
2066
		return;
2067
	branch_name = s->branch;
2068

2069
#define LABEL(string) (s->no_gettext ? (string) : _(string))
2070

2071
	if (s->is_initial)
2072
		color_fprintf(s->fp, header_color, LABEL(N_("No commits yet on ")));
2073

2074
	if (!strcmp(s->branch, "HEAD")) {
2075
		color_fprintf(s->fp, color(WT_STATUS_NOBRANCH, s), "%s",
2076
			      LABEL(N_("HEAD (no branch)")));
2077
		goto conclude;
2078
	}
2079

2080
	skip_prefix(branch_name, "refs/heads/", &branch_name);
2081

2082
	branch = branch_get(branch_name);
2083

2084
	color_fprintf(s->fp, branch_color_local, "%s", branch_name);
2085

2086
	sti = stat_tracking_info(branch, &num_ours, &num_theirs, &base,
2087
				 0, s->ahead_behind_flags);
2088
	if (sti < 0) {
2089
		if (!base)
2090
			goto conclude;
2091

2092
		upstream_is_gone = 1;
2093
	}
2094

2095
	short_base = refs_shorten_unambiguous_ref(get_main_ref_store(the_repository),
2096
						  base, 0);
2097
	color_fprintf(s->fp, header_color, "...");
2098
	color_fprintf(s->fp, branch_color_remote, "%s", short_base);
2099
	free(short_base);
2100

2101
	if (!upstream_is_gone && !sti)
2102
		goto conclude;
2103

2104
	color_fprintf(s->fp, header_color, " [");
2105
	if (upstream_is_gone) {
2106
		color_fprintf(s->fp, header_color, LABEL(N_("gone")));
2107
	} else if (s->ahead_behind_flags == AHEAD_BEHIND_QUICK) {
2108
		color_fprintf(s->fp, header_color, LABEL(N_("different")));
2109
	} else if (!num_ours) {
2110
		color_fprintf(s->fp, header_color, LABEL(N_("behind ")));
2111
		color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
2112
	} else if (!num_theirs) {
2113
		color_fprintf(s->fp, header_color, LABEL(N_("ahead ")));
2114
		color_fprintf(s->fp, branch_color_local, "%d", num_ours);
2115
	} else {
2116
		color_fprintf(s->fp, header_color, LABEL(N_("ahead ")));
2117
		color_fprintf(s->fp, branch_color_local, "%d", num_ours);
2118
		color_fprintf(s->fp, header_color, ", %s", LABEL(N_("behind ")));
2119
		color_fprintf(s->fp, branch_color_remote, "%d", num_theirs);
2120
	}
2121

2122
	color_fprintf(s->fp, header_color, "]");
2123
 conclude:
2124
	fputc(s->null_termination ? '\0' : '\n', s->fp);
2125
}
2126

2127
static void wt_shortstatus_print(struct wt_status *s)
2128
{
2129
	struct string_list_item *it;
2130

2131
	if (s->show_branch)
2132
		wt_shortstatus_print_tracking(s);
2133

2134
	for_each_string_list_item(it, &s->change) {
2135
		struct wt_status_change_data *d = it->util;
2136

2137
		if (d->stagemask)
2138
			wt_shortstatus_unmerged(it, s);
2139
		else
2140
			wt_shortstatus_status(it, s);
2141
	}
2142
	for_each_string_list_item(it, &s->untracked)
2143
		wt_shortstatus_other(it, s, "??");
2144

2145
	for_each_string_list_item(it, &s->ignored)
2146
		wt_shortstatus_other(it, s, "!!");
2147
}
2148

2149
static void wt_porcelain_print(struct wt_status *s)
2150
{
2151
	s->use_color = 0;
2152
	s->relative_paths = 0;
2153
	s->prefix = NULL;
2154
	s->no_gettext = 1;
2155
	wt_shortstatus_print(s);
2156
}
2157

2158
/*
2159
 * Print branch information for porcelain v2 output.  These lines
2160
 * are printed when the '--branch' parameter is given.
2161
 *
2162
 *    # branch.oid <commit><eol>
2163
 *    # branch.head <head><eol>
2164
 *   [# branch.upstream <upstream><eol>
2165
 *   [# branch.ab +<ahead> -<behind><eol>]]
2166
 *
2167
 *      <commit> ::= the current commit hash or the literal
2168
 *                   "(initial)" to indicate an initialized repo
2169
 *                   with no commits.
2170
 *
2171
 *        <head> ::= <branch_name> the current branch name or
2172
 *                   "(detached)" literal when detached head or
2173
 *                   "(unknown)" when something is wrong.
2174
 *
2175
 *    <upstream> ::= the upstream branch name, when set.
2176
 *
2177
 *       <ahead> ::= integer ahead value or '?'.
2178
 *
2179
 *      <behind> ::= integer behind value or '?'.
2180
 *
2181
 * The end-of-line is defined by the -z flag.
2182
 *
2183
 *                 <eol> ::= NUL when -z,
2184
 *                           LF when NOT -z.
2185
 *
2186
 * When an upstream is set and present, the 'branch.ab' line will
2187
 * be printed with the ahead/behind counts for the branch and the
2188
 * upstream.  When AHEAD_BEHIND_QUICK is requested and the branches
2189
 * are different, '?' will be substituted for the actual count.
2190
 */
2191
static void wt_porcelain_v2_print_tracking(struct wt_status *s)
2192
{
2193
	struct branch *branch;
2194
	const char *base;
2195
	const char *branch_name;
2196
	int ab_info, nr_ahead, nr_behind;
2197
	char eol = s->null_termination ? '\0' : '\n';
2198

2199
	fprintf(s->fp, "# branch.oid %s%c",
2200
			(s->is_initial ? "(initial)" : oid_to_hex(&s->oid_commit)),
2201
			eol);
2202

2203
	if (!s->branch)
2204
		fprintf(s->fp, "# branch.head %s%c", "(unknown)", eol);
2205
	else {
2206
		if (!strcmp(s->branch, "HEAD")) {
2207
			fprintf(s->fp, "# branch.head %s%c", "(detached)", eol);
2208

2209
			if (s->state.rebase_in_progress ||
2210
			    s->state.rebase_interactive_in_progress)
2211
				branch_name = s->state.onto;
2212
			else if (s->state.detached_from)
2213
				branch_name = s->state.detached_from;
2214
			else
2215
				branch_name = "";
2216
		} else {
2217
			branch_name = NULL;
2218
			skip_prefix(s->branch, "refs/heads/", &branch_name);
2219

2220
			fprintf(s->fp, "# branch.head %s%c", branch_name, eol);
2221
		}
2222

2223
		/* Lookup stats on the upstream tracking branch, if set. */
2224
		branch = branch_get(branch_name);
2225
		base = NULL;
2226
		ab_info = stat_tracking_info(branch, &nr_ahead, &nr_behind,
2227
					     &base, 0, s->ahead_behind_flags);
2228
		if (base) {
2229
			base = refs_shorten_unambiguous_ref(get_main_ref_store(the_repository),
2230
							    base, 0);
2231
			fprintf(s->fp, "# branch.upstream %s%c", base, eol);
2232
			free((char *)base);
2233

2234
			if (ab_info > 0) {
2235
				/* different */
2236
				if (nr_ahead || nr_behind)
2237
					fprintf(s->fp, "# branch.ab +%d -%d%c",
2238
						nr_ahead, nr_behind, eol);
2239
				else
2240
					fprintf(s->fp, "# branch.ab +? -?%c",
2241
						eol);
2242
			} else if (!ab_info) {
2243
				/* same */
2244
				fprintf(s->fp, "# branch.ab +0 -0%c", eol);
2245
			}
2246
		}
2247
	}
2248
}
2249

2250
/*
2251
 * Print the stash count in a porcelain-friendly format
2252
 */
2253
static void wt_porcelain_v2_print_stash(struct wt_status *s)
2254
{
2255
	int stash_count = count_stash_entries();
2256
	char eol = s->null_termination ? '\0' : '\n';
2257

2258
	if (stash_count > 0)
2259
		fprintf(s->fp, "# stash %d%c", stash_count, eol);
2260
}
2261

2262
/*
2263
 * Convert various submodule status values into a
2264
 * fixed-length string of characters in the buffer provided.
2265
 */
2266
static void wt_porcelain_v2_submodule_state(
2267
	struct wt_status_change_data *d,
2268
	char sub[5])
2269
{
2270
	if (S_ISGITLINK(d->mode_head) ||
2271
		S_ISGITLINK(d->mode_index) ||
2272
		S_ISGITLINK(d->mode_worktree)) {
2273
		sub[0] = 'S';
2274
		sub[1] = d->new_submodule_commits ? 'C' : '.';
2275
		sub[2] = (d->dirty_submodule & DIRTY_SUBMODULE_MODIFIED) ? 'M' : '.';
2276
		sub[3] = (d->dirty_submodule & DIRTY_SUBMODULE_UNTRACKED) ? 'U' : '.';
2277
	} else {
2278
		sub[0] = 'N';
2279
		sub[1] = '.';
2280
		sub[2] = '.';
2281
		sub[3] = '.';
2282
	}
2283
	sub[4] = 0;
2284
}
2285

2286
/*
2287
 * Fix-up changed entries before we print them.
2288
 */
2289
static void wt_porcelain_v2_fix_up_changed(struct string_list_item *it)
2290
{
2291
	struct wt_status_change_data *d = it->util;
2292

2293
	if (!d->index_status) {
2294
		/*
2295
		 * This entry is unchanged in the index (relative to the head).
2296
		 * Therefore, the collect_updated_cb was never called for this
2297
		 * entry (during the head-vs-index scan) and so the head column
2298
		 * fields were never set.
2299
		 *
2300
		 * We must have data for the index column (from the
2301
		 * index-vs-worktree scan (otherwise, this entry should not be
2302
		 * in the list of changes)).
2303
		 *
2304
		 * Copy index column fields to the head column, so that our
2305
		 * output looks complete.
2306
		 */
2307
		assert(d->mode_head == 0);
2308
		d->mode_head = d->mode_index;
2309
		oidcpy(&d->oid_head, &d->oid_index);
2310
	}
2311

2312
	if (!d->worktree_status) {
2313
		/*
2314
		 * This entry is unchanged in the worktree (relative to the index).
2315
		 * Therefore, the collect_changed_cb was never called for this entry
2316
		 * (during the index-vs-worktree scan) and so the worktree column
2317
		 * fields were never set.
2318
		 *
2319
		 * We must have data for the index column (from the head-vs-index
2320
		 * scan).
2321
		 *
2322
		 * Copy the index column fields to the worktree column so that
2323
		 * our output looks complete.
2324
		 *
2325
		 * Note that we only have a mode field in the worktree column
2326
		 * because the scan code tries really hard to not have to compute it.
2327
		 */
2328
		assert(d->mode_worktree == 0);
2329
		d->mode_worktree = d->mode_index;
2330
	}
2331
}
2332

2333
/*
2334
 * Print porcelain v2 info for tracked entries with changes.
2335
 */
2336
static void wt_porcelain_v2_print_changed_entry(
2337
	struct string_list_item *it,
2338
	struct wt_status *s)
2339
{
2340
	struct wt_status_change_data *d = it->util;
2341
	struct strbuf buf = STRBUF_INIT;
2342
	struct strbuf buf_from = STRBUF_INIT;
2343
	const char *path = NULL;
2344
	const char *path_from = NULL;
2345
	char key[3];
2346
	char submodule_token[5];
2347
	char sep_char, eol_char;
2348

2349
	wt_porcelain_v2_fix_up_changed(it);
2350
	wt_porcelain_v2_submodule_state(d, submodule_token);
2351

2352
	key[0] = d->index_status ? d->index_status : '.';
2353
	key[1] = d->worktree_status ? d->worktree_status : '.';
2354
	key[2] = 0;
2355

2356
	if (s->null_termination) {
2357
		/*
2358
		 * In -z mode, we DO NOT C-quote pathnames.  Current path is ALWAYS first.
2359
		 * A single NUL character separates them.
2360
		 */
2361
		sep_char = '\0';
2362
		eol_char = '\0';
2363
		path = it->string;
2364
		path_from = d->rename_source;
2365
	} else {
2366
		/*
2367
		 * Path(s) are C-quoted if necessary. Current path is ALWAYS first.
2368
		 * The source path is only present when necessary.
2369
		 * A single TAB separates them (because paths can contain spaces
2370
		 * which are not escaped and C-quoting does escape TAB characters).
2371
		 */
2372
		sep_char = '\t';
2373
		eol_char = '\n';
2374
		path = quote_path(it->string, s->prefix, &buf, 0);
2375
		if (d->rename_source)
2376
			path_from = quote_path(d->rename_source, s->prefix, &buf_from, 0);
2377
	}
2378

2379
	if (path_from)
2380
		fprintf(s->fp, "2 %s %s %06o %06o %06o %s %s %c%d %s%c%s%c",
2381
				key, submodule_token,
2382
				d->mode_head, d->mode_index, d->mode_worktree,
2383
				oid_to_hex(&d->oid_head), oid_to_hex(&d->oid_index),
2384
				d->rename_status, d->rename_score,
2385
				path, sep_char, path_from, eol_char);
2386
	else
2387
		fprintf(s->fp, "1 %s %s %06o %06o %06o %s %s %s%c",
2388
				key, submodule_token,
2389
				d->mode_head, d->mode_index, d->mode_worktree,
2390
				oid_to_hex(&d->oid_head), oid_to_hex(&d->oid_index),
2391
				path, eol_char);
2392

2393
	strbuf_release(&buf);
2394
	strbuf_release(&buf_from);
2395
}
2396

2397
/*
2398
 * Print porcelain v2 status info for unmerged entries.
2399
 */
2400
static void wt_porcelain_v2_print_unmerged_entry(
2401
	struct string_list_item *it,
2402
	struct wt_status *s)
2403
{
2404
	struct wt_status_change_data *d = it->util;
2405
	struct index_state *istate = s->repo->index;
2406
	const struct cache_entry *ce;
2407
	struct strbuf buf_index = STRBUF_INIT;
2408
	const char *path_index = NULL;
2409
	int pos, stage, sum;
2410
	struct {
2411
		int mode;
2412
		struct object_id oid;
2413
	} stages[3];
2414
	const char *key;
2415
	char submodule_token[5];
2416
	char unmerged_prefix = 'u';
2417
	char eol_char = s->null_termination ? '\0' : '\n';
2418

2419
	wt_porcelain_v2_submodule_state(d, submodule_token);
2420

2421
	switch (d->stagemask) {
2422
	case 1: key = "DD"; break; /* both deleted */
2423
	case 2: key = "AU"; break; /* added by us */
2424
	case 3: key = "UD"; break; /* deleted by them */
2425
	case 4: key = "UA"; break; /* added by them */
2426
	case 5: key = "DU"; break; /* deleted by us */
2427
	case 6: key = "AA"; break; /* both added */
2428
	case 7: key = "UU"; break; /* both modified */
2429
	default:
2430
		BUG("unhandled unmerged status %x", d->stagemask);
2431
	}
2432

2433
	/*
2434
	 * Disregard d.aux.porcelain_v2 data that we accumulated
2435
	 * for the head and index columns during the scans and
2436
	 * replace with the actual stage data.
2437
	 *
2438
	 * Note that this is a last-one-wins for each the individual
2439
	 * stage [123] columns in the event of multiple cache entries
2440
	 * for same stage.
2441
	 */
2442
	memset(stages, 0, sizeof(stages));
2443
	sum = 0;
2444
	pos = index_name_pos(istate, it->string, strlen(it->string));
2445
	assert(pos < 0);
2446
	pos = -pos-1;
2447
	while (pos < istate->cache_nr) {
2448
		ce = istate->cache[pos++];
2449
		stage = ce_stage(ce);
2450
		if (strcmp(ce->name, it->string) || !stage)
2451
			break;
2452
		stages[stage - 1].mode = ce->ce_mode;
2453
		oidcpy(&stages[stage - 1].oid, &ce->oid);
2454
		sum |= (1 << (stage - 1));
2455
	}
2456
	if (sum != d->stagemask)
2457
		BUG("observed stagemask 0x%x != expected stagemask 0x%x", sum, d->stagemask);
2458

2459
	if (s->null_termination)
2460
		path_index = it->string;
2461
	else
2462
		path_index = quote_path(it->string, s->prefix, &buf_index, 0);
2463

2464
	fprintf(s->fp, "%c %s %s %06o %06o %06o %06o %s %s %s %s%c",
2465
			unmerged_prefix, key, submodule_token,
2466
			stages[0].mode, /* stage 1 */
2467
			stages[1].mode, /* stage 2 */
2468
			stages[2].mode, /* stage 3 */
2469
			d->mode_worktree,
2470
			oid_to_hex(&stages[0].oid), /* stage 1 */
2471
			oid_to_hex(&stages[1].oid), /* stage 2 */
2472
			oid_to_hex(&stages[2].oid), /* stage 3 */
2473
			path_index,
2474
			eol_char);
2475

2476
	strbuf_release(&buf_index);
2477
}
2478

2479
/*
2480
 * Print porcelain V2 status info for untracked and ignored entries.
2481
 */
2482
static void wt_porcelain_v2_print_other(
2483
	struct string_list_item *it,
2484
	struct wt_status *s,
2485
	char prefix)
2486
{
2487
	struct strbuf buf = STRBUF_INIT;
2488
	const char *path;
2489
	char eol_char;
2490

2491
	if (s->null_termination) {
2492
		path = it->string;
2493
		eol_char = '\0';
2494
	} else {
2495
		path = quote_path(it->string, s->prefix, &buf, 0);
2496
		eol_char = '\n';
2497
	}
2498

2499
	fprintf(s->fp, "%c %s%c", prefix, path, eol_char);
2500

2501
	strbuf_release(&buf);
2502
}
2503

2504
/*
2505
 * Print porcelain V2 status.
2506
 *
2507
 * [<v2_branch>]
2508
 * [<v2_changed_items>]*
2509
 * [<v2_unmerged_items>]*
2510
 * [<v2_untracked_items>]*
2511
 * [<v2_ignored_items>]*
2512
 *
2513
 */
2514
static void wt_porcelain_v2_print(struct wt_status *s)
2515
{
2516
	struct wt_status_change_data *d;
2517
	struct string_list_item *it;
2518
	int i;
2519

2520
	if (s->show_branch)
2521
		wt_porcelain_v2_print_tracking(s);
2522

2523
	if (s->show_stash)
2524
		wt_porcelain_v2_print_stash(s);
2525

2526
	for (i = 0; i < s->change.nr; i++) {
2527
		it = &(s->change.items[i]);
2528
		d = it->util;
2529
		if (!d->stagemask)
2530
			wt_porcelain_v2_print_changed_entry(it, s);
2531
	}
2532

2533
	for (i = 0; i < s->change.nr; i++) {
2534
		it = &(s->change.items[i]);
2535
		d = it->util;
2536
		if (d->stagemask)
2537
			wt_porcelain_v2_print_unmerged_entry(it, s);
2538
	}
2539

2540
	for (i = 0; i < s->untracked.nr; i++) {
2541
		it = &(s->untracked.items[i]);
2542
		wt_porcelain_v2_print_other(it, s, '?');
2543
	}
2544

2545
	for (i = 0; i < s->ignored.nr; i++) {
2546
		it = &(s->ignored.items[i]);
2547
		wt_porcelain_v2_print_other(it, s, '!');
2548
	}
2549
}
2550

2551
void wt_status_print(struct wt_status *s)
2552
{
2553
	trace2_data_intmax("status", s->repo, "count/changed", s->change.nr);
2554
	trace2_data_intmax("status", s->repo, "count/untracked",
2555
			   s->untracked.nr);
2556
	trace2_data_intmax("status", s->repo, "count/ignored", s->ignored.nr);
2557

2558
	trace2_region_enter("status", "print", s->repo);
2559

2560
	switch (s->status_format) {
2561
	case STATUS_FORMAT_SHORT:
2562
		wt_shortstatus_print(s);
2563
		break;
2564
	case STATUS_FORMAT_PORCELAIN:
2565
		wt_porcelain_print(s);
2566
		break;
2567
	case STATUS_FORMAT_PORCELAIN_V2:
2568
		wt_porcelain_v2_print(s);
2569
		break;
2570
	case STATUS_FORMAT_UNSPECIFIED:
2571
		BUG("finalize_deferred_config() should have been called");
2572
		break;
2573
	case STATUS_FORMAT_NONE:
2574
	case STATUS_FORMAT_LONG:
2575
		wt_longstatus_print(s);
2576
		break;
2577
	}
2578

2579
	trace2_region_leave("status", "print", s->repo);
2580
}
2581

2582
/**
2583
 * Returns 1 if there are unstaged changes, 0 otherwise.
2584
 */
2585
int has_unstaged_changes(struct repository *r, int ignore_submodules)
2586
{
2587
	struct rev_info rev_info;
2588
	int result;
2589

2590
	repo_init_revisions(r, &rev_info, NULL);
2591
	if (ignore_submodules) {
2592
		rev_info.diffopt.flags.ignore_submodules = 1;
2593
		rev_info.diffopt.flags.override_submodule_config = 1;
2594
	}
2595
	rev_info.diffopt.flags.quick = 1;
2596
	diff_setup_done(&rev_info.diffopt);
2597
	run_diff_files(&rev_info, 0);
2598
	result = diff_result_code(&rev_info.diffopt);
2599
	release_revisions(&rev_info);
2600
	return result;
2601
}
2602

2603
/**
2604
 * Returns 1 if there are uncommitted changes, 0 otherwise.
2605
 */
2606
int has_uncommitted_changes(struct repository *r,
2607
			    int ignore_submodules)
2608
{
2609
	struct rev_info rev_info;
2610
	int result;
2611

2612
	if (is_index_unborn(r->index))
2613
		return 0;
2614

2615
	repo_init_revisions(r, &rev_info, NULL);
2616
	if (ignore_submodules)
2617
		rev_info.diffopt.flags.ignore_submodules = 1;
2618
	rev_info.diffopt.flags.quick = 1;
2619

2620
	add_head_to_pending(&rev_info);
2621
	if (!rev_info.pending.nr) {
2622
		/*
2623
		 * We have no head (or it's corrupt); use the empty tree,
2624
		 * which will complain if the index is non-empty.
2625
		 */
2626
		struct tree *tree = lookup_tree(r, the_hash_algo->empty_tree);
2627
		add_pending_object(&rev_info, &tree->object, "");
2628
	}
2629

2630
	diff_setup_done(&rev_info.diffopt);
2631
	run_diff_index(&rev_info, DIFF_INDEX_CACHED);
2632
	result = diff_result_code(&rev_info.diffopt);
2633
	release_revisions(&rev_info);
2634
	return result;
2635
}
2636

2637
/**
2638
 * If the work tree has unstaged or uncommitted changes, dies with the
2639
 * appropriate message.
2640
 */
2641
int require_clean_work_tree(struct repository *r,
2642
			    const char *action,
2643
			    const char *hint,
2644
			    int ignore_submodules,
2645
			    int gently)
2646
{
2647
	struct lock_file lock_file = LOCK_INIT;
2648
	int err = 0, fd;
2649

2650
	fd = repo_hold_locked_index(r, &lock_file, 0);
2651
	refresh_index(r->index, REFRESH_QUIET, NULL, NULL, NULL);
2652
	if (0 <= fd)
2653
		repo_update_index_if_able(r, &lock_file);
2654
	rollback_lock_file(&lock_file);
2655

2656
	if (has_unstaged_changes(r, ignore_submodules)) {
2657
		/* TRANSLATORS: the action is e.g. "pull with rebase" */
2658
		error(_("cannot %s: You have unstaged changes."), _(action));
2659
		err = 1;
2660
	}
2661

2662
	if (has_uncommitted_changes(r, ignore_submodules)) {
2663
		if (err)
2664
			error(_("additionally, your index contains uncommitted changes."));
2665
		else
2666
			error(_("cannot %s: Your index contains uncommitted changes."),
2667
			      _(action));
2668
		err = 1;
2669
	}
2670

2671
	if (err) {
2672
		if (hint) {
2673
			if (!*hint)
2674
				BUG("empty hint passed to require_clean_work_tree();"
2675
				    " use NULL instead");
2676
			error("%s", hint);
2677
		}
2678
		if (!gently)
2679
			exit(128);
2680
	}
2681

2682
	return err;
2683
}
2684