tree.c: make read_tree*() take 'struct repository *'
[git/git.git] / builtin / ls-files.c
1 /*
2 * This merges the file listing in the directory cache index
3 * with the actual working directory list, and shows different
4 * combinations of the two.
5 *
6 * Copyright (C) Linus Torvalds, 2005
7 */
8 #define NO_THE_INDEX_COMPATIBILITY_MACROS
9 #include "cache.h"
10 #include "repository.h"
11 #include "config.h"
12 #include "quote.h"
13 #include "dir.h"
14 #include "builtin.h"
15 #include "tree.h"
16 #include "parse-options.h"
17 #include "resolve-undo.h"
18 #include "string-list.h"
19 #include "pathspec.h"
20 #include "run-command.h"
21 #include "submodule.h"
22 #include "submodule-config.h"
23
24 static int abbrev;
25 static int show_deleted;
26 static int show_cached;
27 static int show_others;
28 static int show_stage;
29 static int show_unmerged;
30 static int show_resolve_undo;
31 static int show_modified;
32 static int show_killed;
33 static int show_valid_bit;
34 static int show_fsmonitor_bit;
35 static int line_terminator = '\n';
36 static int debug_mode;
37 static int show_eol;
38 static int recurse_submodules;
39
40 static const char *prefix;
41 static int max_prefix_len;
42 static int prefix_len;
43 static struct pathspec pathspec;
44 static int error_unmatch;
45 static char *ps_matched;
46 static const char *with_tree;
47 static int exc_given;
48 static int exclude_args;
49
50 static const char *tag_cached = "";
51 static const char *tag_unmerged = "";
52 static const char *tag_removed = "";
53 static const char *tag_other = "";
54 static const char *tag_killed = "";
55 static const char *tag_modified = "";
56 static const char *tag_skip_worktree = "";
57 static const char *tag_resolve_undo = "";
58
59 static void write_eolinfo(const struct index_state *istate,
60 const struct cache_entry *ce, const char *path)
61 {
62 if (show_eol) {
63 struct stat st;
64 const char *i_txt = "";
65 const char *w_txt = "";
66 const char *a_txt = get_convert_attr_ascii(istate, path);
67 if (ce && S_ISREG(ce->ce_mode))
68 i_txt = get_cached_convert_stats_ascii(istate,
69 ce->name);
70 if (!lstat(path, &st) && S_ISREG(st.st_mode))
71 w_txt = get_wt_convert_stats_ascii(path);
72 printf("i/%-5s w/%-5s attr/%-17s\t", i_txt, w_txt, a_txt);
73 }
74 }
75
76 static void write_name(const char *name)
77 {
78 /*
79 * With "--full-name", prefix_len=0; this caller needs to pass
80 * an empty string in that case (a NULL is good for "").
81 */
82 write_name_quoted_relative(name, prefix_len ? prefix : NULL,
83 stdout, line_terminator);
84 }
85
86 static const char *get_tag(const struct cache_entry *ce, const char *tag)
87 {
88 static char alttag[4];
89
90 if (tag && *tag && ((show_valid_bit && (ce->ce_flags & CE_VALID)) ||
91 (show_fsmonitor_bit && (ce->ce_flags & CE_FSMONITOR_VALID)))) {
92 memcpy(alttag, tag, 3);
93
94 if (isalpha(tag[0])) {
95 alttag[0] = tolower(tag[0]);
96 } else if (tag[0] == '?') {
97 alttag[0] = '!';
98 } else {
99 alttag[0] = 'v';
100 alttag[1] = tag[0];
101 alttag[2] = ' ';
102 alttag[3] = 0;
103 }
104
105 tag = alttag;
106 }
107
108 return tag;
109 }
110
111 static void print_debug(const struct cache_entry *ce)
112 {
113 if (debug_mode) {
114 const struct stat_data *sd = &ce->ce_stat_data;
115
116 printf(" ctime: %d:%d\n", sd->sd_ctime.sec, sd->sd_ctime.nsec);
117 printf(" mtime: %d:%d\n", sd->sd_mtime.sec, sd->sd_mtime.nsec);
118 printf(" dev: %d\tino: %d\n", sd->sd_dev, sd->sd_ino);
119 printf(" uid: %d\tgid: %d\n", sd->sd_uid, sd->sd_gid);
120 printf(" size: %d\tflags: %x\n", sd->sd_size, ce->ce_flags);
121 }
122 }
123
124 static void show_dir_entry(const struct index_state *istate,
125 const char *tag, struct dir_entry *ent)
126 {
127 int len = max_prefix_len;
128
129 if (len > ent->len)
130 die("git ls-files: internal error - directory entry not superset of prefix");
131
132 if (!dir_path_match(istate, ent, &pathspec, len, ps_matched))
133 return;
134
135 fputs(tag, stdout);
136 write_eolinfo(istate, NULL, ent->name);
137 write_name(ent->name);
138 }
139
140 static void show_other_files(const struct index_state *istate,
141 const struct dir_struct *dir)
142 {
143 int i;
144
145 for (i = 0; i < dir->nr; i++) {
146 struct dir_entry *ent = dir->entries[i];
147 if (!index_name_is_other(istate, ent->name, ent->len))
148 continue;
149 show_dir_entry(istate, tag_other, ent);
150 }
151 }
152
153 static void show_killed_files(const struct index_state *istate,
154 const struct dir_struct *dir)
155 {
156 int i;
157 for (i = 0; i < dir->nr; i++) {
158 struct dir_entry *ent = dir->entries[i];
159 char *cp, *sp;
160 int pos, len, killed = 0;
161
162 for (cp = ent->name; cp - ent->name < ent->len; cp = sp + 1) {
163 sp = strchr(cp, '/');
164 if (!sp) {
165 /* If ent->name is prefix of an entry in the
166 * cache, it will be killed.
167 */
168 pos = index_name_pos(istate, ent->name, ent->len);
169 if (0 <= pos)
170 BUG("killed-file %.*s not found",
171 ent->len, ent->name);
172 pos = -pos - 1;
173 while (pos < istate->cache_nr &&
174 ce_stage(istate->cache[pos]))
175 pos++; /* skip unmerged */
176 if (istate->cache_nr <= pos)
177 break;
178 /* pos points at a name immediately after
179 * ent->name in the cache. Does it expect
180 * ent->name to be a directory?
181 */
182 len = ce_namelen(istate->cache[pos]);
183 if ((ent->len < len) &&
184 !strncmp(istate->cache[pos]->name,
185 ent->name, ent->len) &&
186 istate->cache[pos]->name[ent->len] == '/')
187 killed = 1;
188 break;
189 }
190 if (0 <= index_name_pos(istate, ent->name, sp - ent->name)) {
191 /* If any of the leading directories in
192 * ent->name is registered in the cache,
193 * ent->name will be killed.
194 */
195 killed = 1;
196 break;
197 }
198 }
199 if (killed)
200 show_dir_entry(istate, tag_killed, dir->entries[i]);
201 }
202 }
203
204 static void show_files(struct repository *repo, struct dir_struct *dir);
205
206 static void show_submodule(struct repository *superproject,
207 struct dir_struct *dir, const char *path)
208 {
209 struct repository submodule;
210
211 if (repo_submodule_init(&submodule, superproject, path))
212 return;
213
214 if (repo_read_index(&submodule) < 0)
215 die("index file corrupt");
216
217 show_files(&submodule, dir);
218
219 repo_clear(&submodule);
220 }
221
222 static void show_ce(struct repository *repo, struct dir_struct *dir,
223 const struct cache_entry *ce, const char *fullname,
224 const char *tag)
225 {
226 if (max_prefix_len > strlen(fullname))
227 die("git ls-files: internal error - cache entry not superset of prefix");
228
229 if (recurse_submodules && S_ISGITLINK(ce->ce_mode) &&
230 is_submodule_active(repo, ce->name)) {
231 show_submodule(repo, dir, ce->name);
232 } else if (match_pathspec(repo->index, &pathspec, fullname, strlen(fullname),
233 max_prefix_len, ps_matched,
234 S_ISDIR(ce->ce_mode) ||
235 S_ISGITLINK(ce->ce_mode))) {
236 tag = get_tag(ce, tag);
237
238 if (!show_stage) {
239 fputs(tag, stdout);
240 } else {
241 printf("%s%06o %s %d\t",
242 tag,
243 ce->ce_mode,
244 find_unique_abbrev(&ce->oid, abbrev),
245 ce_stage(ce));
246 }
247 write_eolinfo(repo->index, ce, fullname);
248 write_name(fullname);
249 print_debug(ce);
250 }
251 }
252
253 static void show_ru_info(const struct index_state *istate)
254 {
255 struct string_list_item *item;
256
257 if (!istate->resolve_undo)
258 return;
259
260 for_each_string_list_item(item, istate->resolve_undo) {
261 const char *path = item->string;
262 struct resolve_undo_info *ui = item->util;
263 int i, len;
264
265 len = strlen(path);
266 if (len < max_prefix_len)
267 continue; /* outside of the prefix */
268 if (!match_pathspec(istate, &pathspec, path, len,
269 max_prefix_len, ps_matched, 0))
270 continue; /* uninterested */
271 for (i = 0; i < 3; i++) {
272 if (!ui->mode[i])
273 continue;
274 printf("%s%06o %s %d\t", tag_resolve_undo, ui->mode[i],
275 find_unique_abbrev(&ui->oid[i], abbrev),
276 i + 1);
277 write_name(path);
278 }
279 }
280 }
281
282 static int ce_excluded(struct dir_struct *dir, struct index_state *istate,
283 const char *fullname, const struct cache_entry *ce)
284 {
285 int dtype = ce_to_dtype(ce);
286 return is_excluded(dir, istate, fullname, &dtype);
287 }
288
289 static void construct_fullname(struct strbuf *out, const struct repository *repo,
290 const struct cache_entry *ce)
291 {
292 strbuf_reset(out);
293 if (repo->submodule_prefix)
294 strbuf_addstr(out, repo->submodule_prefix);
295 strbuf_addstr(out, ce->name);
296 }
297
298 static void show_files(struct repository *repo, struct dir_struct *dir)
299 {
300 int i;
301 struct strbuf fullname = STRBUF_INIT;
302
303 /* For cached/deleted files we don't need to even do the readdir */
304 if (show_others || show_killed) {
305 if (!show_others)
306 dir->flags |= DIR_COLLECT_KILLED_ONLY;
307 fill_directory(dir, repo->index, &pathspec);
308 if (show_others)
309 show_other_files(repo->index, dir);
310 if (show_killed)
311 show_killed_files(repo->index, dir);
312 }
313 if (show_cached || show_stage) {
314 for (i = 0; i < repo->index->cache_nr; i++) {
315 const struct cache_entry *ce = repo->index->cache[i];
316
317 construct_fullname(&fullname, repo, ce);
318
319 if ((dir->flags & DIR_SHOW_IGNORED) &&
320 !ce_excluded(dir, repo->index, fullname.buf, ce))
321 continue;
322 if (show_unmerged && !ce_stage(ce))
323 continue;
324 if (ce->ce_flags & CE_UPDATE)
325 continue;
326 show_ce(repo, dir, ce, fullname.buf,
327 ce_stage(ce) ? tag_unmerged :
328 (ce_skip_worktree(ce) ? tag_skip_worktree :
329 tag_cached));
330 }
331 }
332 if (show_deleted || show_modified) {
333 for (i = 0; i < repo->index->cache_nr; i++) {
334 const struct cache_entry *ce = repo->index->cache[i];
335 struct stat st;
336 int err;
337
338 construct_fullname(&fullname, repo, ce);
339
340 if ((dir->flags & DIR_SHOW_IGNORED) &&
341 !ce_excluded(dir, repo->index, fullname.buf, ce))
342 continue;
343 if (ce->ce_flags & CE_UPDATE)
344 continue;
345 if (ce_skip_worktree(ce))
346 continue;
347 err = lstat(fullname.buf, &st);
348 if (show_deleted && err)
349 show_ce(repo, dir, ce, fullname.buf, tag_removed);
350 if (show_modified && ie_modified(repo->index, ce, &st, 0))
351 show_ce(repo, dir, ce, fullname.buf, tag_modified);
352 }
353 }
354
355 strbuf_release(&fullname);
356 }
357
358 /*
359 * Prune the index to only contain stuff starting with "prefix"
360 */
361 static void prune_index(struct index_state *istate,
362 const char *prefix, size_t prefixlen)
363 {
364 int pos;
365 unsigned int first, last;
366
367 if (!prefix || !istate->cache_nr)
368 return;
369 pos = index_name_pos(istate, prefix, prefixlen);
370 if (pos < 0)
371 pos = -pos-1;
372 first = pos;
373 last = istate->cache_nr;
374 while (last > first) {
375 int next = (last + first) >> 1;
376 const struct cache_entry *ce = istate->cache[next];
377 if (!strncmp(ce->name, prefix, prefixlen)) {
378 first = next+1;
379 continue;
380 }
381 last = next;
382 }
383 MOVE_ARRAY(istate->cache, istate->cache + pos, last - pos);
384 istate->cache_nr = last - pos;
385 }
386
387 static int get_common_prefix_len(const char *common_prefix)
388 {
389 int common_prefix_len;
390
391 if (!common_prefix)
392 return 0;
393
394 common_prefix_len = strlen(common_prefix);
395
396 /*
397 * If the prefix has a trailing slash, strip it so that submodules wont
398 * be pruned from the index.
399 */
400 if (common_prefix[common_prefix_len - 1] == '/')
401 common_prefix_len--;
402
403 return common_prefix_len;
404 }
405
406 /*
407 * Read the tree specified with --with-tree option
408 * (typically, HEAD) into stage #1 and then
409 * squash them down to stage #0. This is used for
410 * --error-unmatch to list and check the path patterns
411 * that were given from the command line. We are not
412 * going to write this index out.
413 */
414 void overlay_tree_on_index(struct index_state *istate,
415 const char *tree_name, const char *prefix)
416 {
417 struct tree *tree;
418 struct object_id oid;
419 struct pathspec pathspec;
420 struct cache_entry *last_stage0 = NULL;
421 int i;
422
423 if (get_oid(tree_name, &oid))
424 die("tree-ish %s not found.", tree_name);
425 tree = parse_tree_indirect(&oid);
426 if (!tree)
427 die("bad tree-ish %s", tree_name);
428
429 /* Hoist the unmerged entries up to stage #3 to make room */
430 for (i = 0; i < istate->cache_nr; i++) {
431 struct cache_entry *ce = istate->cache[i];
432 if (!ce_stage(ce))
433 continue;
434 ce->ce_flags |= CE_STAGEMASK;
435 }
436
437 if (prefix) {
438 static const char *(matchbuf[1]);
439 matchbuf[0] = NULL;
440 parse_pathspec(&pathspec, PATHSPEC_ALL_MAGIC,
441 PATHSPEC_PREFER_CWD, prefix, matchbuf);
442 } else
443 memset(&pathspec, 0, sizeof(pathspec));
444 if (read_tree(the_repository, tree, 1, &pathspec, istate))
445 die("unable to read tree entries %s", tree_name);
446
447 for (i = 0; i < istate->cache_nr; i++) {
448 struct cache_entry *ce = istate->cache[i];
449 switch (ce_stage(ce)) {
450 case 0:
451 last_stage0 = ce;
452 /* fallthru */
453 default:
454 continue;
455 case 1:
456 /*
457 * If there is stage #0 entry for this, we do not
458 * need to show it. We use CE_UPDATE bit to mark
459 * such an entry.
460 */
461 if (last_stage0 &&
462 !strcmp(last_stage0->name, ce->name))
463 ce->ce_flags |= CE_UPDATE;
464 }
465 }
466 }
467
468 static const char * const ls_files_usage[] = {
469 N_("git ls-files [<options>] [<file>...]"),
470 NULL
471 };
472
473 static int option_parse_exclude(const struct option *opt,
474 const char *arg, int unset)
475 {
476 struct string_list *exclude_list = opt->value;
477
478 BUG_ON_OPT_NEG(unset);
479
480 exc_given = 1;
481 string_list_append(exclude_list, arg);
482
483 return 0;
484 }
485
486 static int option_parse_exclude_from(const struct option *opt,
487 const char *arg, int unset)
488 {
489 struct dir_struct *dir = opt->value;
490
491 BUG_ON_OPT_NEG(unset);
492
493 exc_given = 1;
494 add_excludes_from_file(dir, arg);
495
496 return 0;
497 }
498
499 static int option_parse_exclude_standard(const struct option *opt,
500 const char *arg, int unset)
501 {
502 struct dir_struct *dir = opt->value;
503
504 BUG_ON_OPT_NEG(unset);
505 BUG_ON_OPT_ARG(arg);
506
507 exc_given = 1;
508 setup_standard_excludes(dir);
509
510 return 0;
511 }
512
513 int cmd_ls_files(int argc, const char **argv, const char *cmd_prefix)
514 {
515 int require_work_tree = 0, show_tag = 0, i;
516 const char *max_prefix;
517 struct dir_struct dir;
518 struct exclude_list *el;
519 struct string_list exclude_list = STRING_LIST_INIT_NODUP;
520 struct option builtin_ls_files_options[] = {
521 /* Think twice before adding "--nul" synonym to this */
522 OPT_SET_INT('z', NULL, &line_terminator,
523 N_("paths are separated with NUL character"), '\0'),
524 OPT_BOOL('t', NULL, &show_tag,
525 N_("identify the file status with tags")),
526 OPT_BOOL('v', NULL, &show_valid_bit,
527 N_("use lowercase letters for 'assume unchanged' files")),
528 OPT_BOOL('f', NULL, &show_fsmonitor_bit,
529 N_("use lowercase letters for 'fsmonitor clean' files")),
530 OPT_BOOL('c', "cached", &show_cached,
531 N_("show cached files in the output (default)")),
532 OPT_BOOL('d', "deleted", &show_deleted,
533 N_("show deleted files in the output")),
534 OPT_BOOL('m', "modified", &show_modified,
535 N_("show modified files in the output")),
536 OPT_BOOL('o', "others", &show_others,
537 N_("show other files in the output")),
538 OPT_BIT('i', "ignored", &dir.flags,
539 N_("show ignored files in the output"),
540 DIR_SHOW_IGNORED),
541 OPT_BOOL('s', "stage", &show_stage,
542 N_("show staged contents' object name in the output")),
543 OPT_BOOL('k', "killed", &show_killed,
544 N_("show files on the filesystem that need to be removed")),
545 OPT_BIT(0, "directory", &dir.flags,
546 N_("show 'other' directories' names only"),
547 DIR_SHOW_OTHER_DIRECTORIES),
548 OPT_BOOL(0, "eol", &show_eol, N_("show line endings of files")),
549 OPT_NEGBIT(0, "empty-directory", &dir.flags,
550 N_("don't show empty directories"),
551 DIR_HIDE_EMPTY_DIRECTORIES),
552 OPT_BOOL('u', "unmerged", &show_unmerged,
553 N_("show unmerged files in the output")),
554 OPT_BOOL(0, "resolve-undo", &show_resolve_undo,
555 N_("show resolve-undo information")),
556 { OPTION_CALLBACK, 'x', "exclude", &exclude_list, N_("pattern"),
557 N_("skip files matching pattern"),
558 PARSE_OPT_NONEG, option_parse_exclude },
559 { OPTION_CALLBACK, 'X', "exclude-from", &dir, N_("file"),
560 N_("exclude patterns are read from <file>"),
561 PARSE_OPT_NONEG, option_parse_exclude_from },
562 OPT_STRING(0, "exclude-per-directory", &dir.exclude_per_dir, N_("file"),
563 N_("read additional per-directory exclude patterns in <file>")),
564 { OPTION_CALLBACK, 0, "exclude-standard", &dir, NULL,
565 N_("add the standard git exclusions"),
566 PARSE_OPT_NOARG | PARSE_OPT_NONEG,
567 option_parse_exclude_standard },
568 OPT_SET_INT_F(0, "full-name", &prefix_len,
569 N_("make the output relative to the project top directory"),
570 0, PARSE_OPT_NONEG),
571 OPT_BOOL(0, "recurse-submodules", &recurse_submodules,
572 N_("recurse through submodules")),
573 OPT_BOOL(0, "error-unmatch", &error_unmatch,
574 N_("if any <file> is not in the index, treat this as an error")),
575 OPT_STRING(0, "with-tree", &with_tree, N_("tree-ish"),
576 N_("pretend that paths removed since <tree-ish> are still present")),
577 OPT__ABBREV(&abbrev),
578 OPT_BOOL(0, "debug", &debug_mode, N_("show debugging data")),
579 OPT_END()
580 };
581
582 if (argc == 2 && !strcmp(argv[1], "-h"))
583 usage_with_options(ls_files_usage, builtin_ls_files_options);
584
585 memset(&dir, 0, sizeof(dir));
586 prefix = cmd_prefix;
587 if (prefix)
588 prefix_len = strlen(prefix);
589 git_config(git_default_config, NULL);
590
591 if (repo_read_index(the_repository) < 0)
592 die("index file corrupt");
593
594 argc = parse_options(argc, argv, prefix, builtin_ls_files_options,
595 ls_files_usage, 0);
596 el = add_exclude_list(&dir, EXC_CMDL, "--exclude option");
597 for (i = 0; i < exclude_list.nr; i++) {
598 add_exclude(exclude_list.items[i].string, "", 0, el, --exclude_args);
599 }
600 if (show_tag || show_valid_bit || show_fsmonitor_bit) {
601 tag_cached = "H ";
602 tag_unmerged = "M ";
603 tag_removed = "R ";
604 tag_modified = "C ";
605 tag_other = "? ";
606 tag_killed = "K ";
607 tag_skip_worktree = "S ";
608 tag_resolve_undo = "U ";
609 }
610 if (show_modified || show_others || show_deleted || (dir.flags & DIR_SHOW_IGNORED) || show_killed)
611 require_work_tree = 1;
612 if (show_unmerged)
613 /*
614 * There's no point in showing unmerged unless
615 * you also show the stage information.
616 */
617 show_stage = 1;
618 if (dir.exclude_per_dir)
619 exc_given = 1;
620
621 if (require_work_tree && !is_inside_work_tree())
622 setup_work_tree();
623
624 if (recurse_submodules &&
625 (show_stage || show_deleted || show_others || show_unmerged ||
626 show_killed || show_modified || show_resolve_undo || with_tree))
627 die("ls-files --recurse-submodules unsupported mode");
628
629 if (recurse_submodules && error_unmatch)
630 die("ls-files --recurse-submodules does not support "
631 "--error-unmatch");
632
633 parse_pathspec(&pathspec, 0,
634 PATHSPEC_PREFER_CWD,
635 prefix, argv);
636
637 /*
638 * Find common prefix for all pathspec's
639 * This is used as a performance optimization which unfortunately cannot
640 * be done when recursing into submodules because when a pathspec is
641 * given which spans repository boundaries you can't simply remove the
642 * submodule entry because the pathspec may match something inside the
643 * submodule.
644 */
645 if (recurse_submodules)
646 max_prefix = NULL;
647 else
648 max_prefix = common_prefix(&pathspec);
649 max_prefix_len = get_common_prefix_len(max_prefix);
650
651 prune_index(the_repository->index, max_prefix, max_prefix_len);
652
653 /* Treat unmatching pathspec elements as errors */
654 if (pathspec.nr && error_unmatch)
655 ps_matched = xcalloc(pathspec.nr, 1);
656
657 if ((dir.flags & DIR_SHOW_IGNORED) && !exc_given)
658 die("ls-files --ignored needs some exclude pattern");
659
660 /* With no flags, we default to showing the cached files */
661 if (!(show_stage || show_deleted || show_others || show_unmerged ||
662 show_killed || show_modified || show_resolve_undo))
663 show_cached = 1;
664
665 if (with_tree) {
666 /*
667 * Basic sanity check; show-stages and show-unmerged
668 * would not make any sense with this option.
669 */
670 if (show_stage || show_unmerged)
671 die("ls-files --with-tree is incompatible with -s or -u");
672 overlay_tree_on_index(the_repository->index, with_tree, max_prefix);
673 }
674
675 show_files(the_repository, &dir);
676
677 if (show_resolve_undo)
678 show_ru_info(the_repository->index);
679
680 if (ps_matched) {
681 int bad;
682 bad = report_path_error(ps_matched, &pathspec, prefix);
683 if (bad)
684 fprintf(stderr, "Did you forget to 'git add'?\n");
685
686 return bad ? 1 : 0;
687 }
688
689 UNLEAK(dir);
690 return 0;
691 }