dir.c: replace is_path_excluded with now equivalent is_excluded API
[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 #include "cache.h"
9 #include "quote.h"
10 #include "dir.h"
11 #include "builtin.h"
12 #include "tree.h"
13 #include "parse-options.h"
14 #include "resolve-undo.h"
15 #include "string-list.h"
16
17 static int abbrev;
18 static int show_deleted;
19 static int show_cached;
20 static int show_others;
21 static int show_stage;
22 static int show_unmerged;
23 static int show_resolve_undo;
24 static int show_modified;
25 static int show_killed;
26 static int show_valid_bit;
27 static int line_terminator = '\n';
28 static int debug_mode;
29
30 static const char *prefix;
31 static int max_prefix_len;
32 static int prefix_len;
33 static const char **pathspec;
34 static int error_unmatch;
35 static char *ps_matched;
36 static const char *with_tree;
37 static int exc_given;
38 static int exclude_args;
39
40 static const char *tag_cached = "";
41 static const char *tag_unmerged = "";
42 static const char *tag_removed = "";
43 static const char *tag_other = "";
44 static const char *tag_killed = "";
45 static const char *tag_modified = "";
46 static const char *tag_skip_worktree = "";
47 static const char *tag_resolve_undo = "";
48
49 static void write_name(const char* name, size_t len)
50 {
51 write_name_quoted_relative(name, len, prefix, prefix_len, stdout,
52 line_terminator);
53 }
54
55 static void show_dir_entry(const char *tag, struct dir_entry *ent)
56 {
57 int len = max_prefix_len;
58
59 if (len >= ent->len)
60 die("git ls-files: internal error - directory entry not superset of prefix");
61
62 if (!match_pathspec(pathspec, ent->name, ent->len, len, ps_matched))
63 return;
64
65 fputs(tag, stdout);
66 write_name(ent->name, ent->len);
67 }
68
69 static void show_other_files(struct dir_struct *dir)
70 {
71 int i;
72
73 for (i = 0; i < dir->nr; i++) {
74 struct dir_entry *ent = dir->entries[i];
75 if (!cache_name_is_other(ent->name, ent->len))
76 continue;
77 show_dir_entry(tag_other, ent);
78 }
79 }
80
81 static void show_killed_files(struct dir_struct *dir)
82 {
83 int i;
84 for (i = 0; i < dir->nr; i++) {
85 struct dir_entry *ent = dir->entries[i];
86 char *cp, *sp;
87 int pos, len, killed = 0;
88
89 for (cp = ent->name; cp - ent->name < ent->len; cp = sp + 1) {
90 sp = strchr(cp, '/');
91 if (!sp) {
92 /* If ent->name is prefix of an entry in the
93 * cache, it will be killed.
94 */
95 pos = cache_name_pos(ent->name, ent->len);
96 if (0 <= pos)
97 die("bug in show-killed-files");
98 pos = -pos - 1;
99 while (pos < active_nr &&
100 ce_stage(active_cache[pos]))
101 pos++; /* skip unmerged */
102 if (active_nr <= pos)
103 break;
104 /* pos points at a name immediately after
105 * ent->name in the cache. Does it expect
106 * ent->name to be a directory?
107 */
108 len = ce_namelen(active_cache[pos]);
109 if ((ent->len < len) &&
110 !strncmp(active_cache[pos]->name,
111 ent->name, ent->len) &&
112 active_cache[pos]->name[ent->len] == '/')
113 killed = 1;
114 break;
115 }
116 if (0 <= cache_name_pos(ent->name, sp - ent->name)) {
117 /* If any of the leading directories in
118 * ent->name is registered in the cache,
119 * ent->name will be killed.
120 */
121 killed = 1;
122 break;
123 }
124 }
125 if (killed)
126 show_dir_entry(tag_killed, dir->entries[i]);
127 }
128 }
129
130 static void show_ce_entry(const char *tag, struct cache_entry *ce)
131 {
132 int len = max_prefix_len;
133
134 if (len >= ce_namelen(ce))
135 die("git ls-files: internal error - cache entry not superset of prefix");
136
137 if (!match_pathspec(pathspec, ce->name, ce_namelen(ce), len, ps_matched))
138 return;
139
140 if (tag && *tag && show_valid_bit &&
141 (ce->ce_flags & CE_VALID)) {
142 static char alttag[4];
143 memcpy(alttag, tag, 3);
144 if (isalpha(tag[0]))
145 alttag[0] = tolower(tag[0]);
146 else if (tag[0] == '?')
147 alttag[0] = '!';
148 else {
149 alttag[0] = 'v';
150 alttag[1] = tag[0];
151 alttag[2] = ' ';
152 alttag[3] = 0;
153 }
154 tag = alttag;
155 }
156
157 if (!show_stage) {
158 fputs(tag, stdout);
159 } else {
160 printf("%s%06o %s %d\t",
161 tag,
162 ce->ce_mode,
163 find_unique_abbrev(ce->sha1,abbrev),
164 ce_stage(ce));
165 }
166 write_name(ce->name, ce_namelen(ce));
167 if (debug_mode) {
168 printf(" ctime: %d:%d\n", ce->ce_ctime.sec, ce->ce_ctime.nsec);
169 printf(" mtime: %d:%d\n", ce->ce_mtime.sec, ce->ce_mtime.nsec);
170 printf(" dev: %d\tino: %d\n", ce->ce_dev, ce->ce_ino);
171 printf(" uid: %d\tgid: %d\n", ce->ce_uid, ce->ce_gid);
172 printf(" size: %d\tflags: %x\n", ce->ce_size, ce->ce_flags);
173 }
174 }
175
176 static void show_ru_info(void)
177 {
178 struct string_list_item *item;
179
180 if (!the_index.resolve_undo)
181 return;
182
183 for_each_string_list_item(item, the_index.resolve_undo) {
184 const char *path = item->string;
185 struct resolve_undo_info *ui = item->util;
186 int i, len;
187
188 len = strlen(path);
189 if (len < max_prefix_len)
190 continue; /* outside of the prefix */
191 if (!match_pathspec(pathspec, path, len, max_prefix_len, ps_matched))
192 continue; /* uninterested */
193 for (i = 0; i < 3; i++) {
194 if (!ui->mode[i])
195 continue;
196 printf("%s%06o %s %d\t", tag_resolve_undo, ui->mode[i],
197 find_unique_abbrev(ui->sha1[i], abbrev),
198 i + 1);
199 write_name(path, len);
200 }
201 }
202 }
203
204 static int ce_excluded(struct dir_struct *dir, struct cache_entry *ce)
205 {
206 int dtype = ce_to_dtype(ce);
207 return is_excluded(dir, ce->name, &dtype);
208 }
209
210 static void show_files(struct dir_struct *dir)
211 {
212 int i;
213
214 /* For cached/deleted files we don't need to even do the readdir */
215 if (show_others || show_killed) {
216 fill_directory(dir, pathspec);
217 if (show_others)
218 show_other_files(dir);
219 if (show_killed)
220 show_killed_files(dir);
221 }
222 if (show_cached | show_stage) {
223 for (i = 0; i < active_nr; i++) {
224 struct cache_entry *ce = active_cache[i];
225 if ((dir->flags & DIR_SHOW_IGNORED) &&
226 !ce_excluded(dir, ce))
227 continue;
228 if (show_unmerged && !ce_stage(ce))
229 continue;
230 if (ce->ce_flags & CE_UPDATE)
231 continue;
232 show_ce_entry(ce_stage(ce) ? tag_unmerged :
233 (ce_skip_worktree(ce) ? tag_skip_worktree : tag_cached), ce);
234 }
235 }
236 if (show_deleted | show_modified) {
237 for (i = 0; i < active_nr; i++) {
238 struct cache_entry *ce = active_cache[i];
239 struct stat st;
240 int err;
241 if ((dir->flags & DIR_SHOW_IGNORED) &&
242 !ce_excluded(dir, ce))
243 continue;
244 if (ce->ce_flags & CE_UPDATE)
245 continue;
246 if (ce_skip_worktree(ce))
247 continue;
248 err = lstat(ce->name, &st);
249 if (show_deleted && err)
250 show_ce_entry(tag_removed, ce);
251 if (show_modified && ce_modified(ce, &st, 0))
252 show_ce_entry(tag_modified, ce);
253 }
254 }
255 }
256
257 /*
258 * Prune the index to only contain stuff starting with "prefix"
259 */
260 static void prune_cache(const char *prefix)
261 {
262 int pos = cache_name_pos(prefix, max_prefix_len);
263 unsigned int first, last;
264
265 if (pos < 0)
266 pos = -pos-1;
267 memmove(active_cache, active_cache + pos,
268 (active_nr - pos) * sizeof(struct cache_entry *));
269 active_nr -= pos;
270 first = 0;
271 last = active_nr;
272 while (last > first) {
273 int next = (last + first) >> 1;
274 struct cache_entry *ce = active_cache[next];
275 if (!strncmp(ce->name, prefix, max_prefix_len)) {
276 first = next+1;
277 continue;
278 }
279 last = next;
280 }
281 active_nr = last;
282 }
283
284 static void strip_trailing_slash_from_submodules(void)
285 {
286 const char **p;
287
288 for (p = pathspec; *p != NULL; p++) {
289 int len = strlen(*p), pos;
290
291 if (len < 1 || (*p)[len - 1] != '/')
292 continue;
293 pos = cache_name_pos(*p, len - 1);
294 if (pos >= 0 && S_ISGITLINK(active_cache[pos]->ce_mode))
295 *p = xstrndup(*p, len - 1);
296 }
297 }
298
299 /*
300 * Read the tree specified with --with-tree option
301 * (typically, HEAD) into stage #1 and then
302 * squash them down to stage #0. This is used for
303 * --error-unmatch to list and check the path patterns
304 * that were given from the command line. We are not
305 * going to write this index out.
306 */
307 void overlay_tree_on_cache(const char *tree_name, const char *prefix)
308 {
309 struct tree *tree;
310 unsigned char sha1[20];
311 struct pathspec pathspec;
312 struct cache_entry *last_stage0 = NULL;
313 int i;
314
315 if (get_sha1(tree_name, sha1))
316 die("tree-ish %s not found.", tree_name);
317 tree = parse_tree_indirect(sha1);
318 if (!tree)
319 die("bad tree-ish %s", tree_name);
320
321 /* Hoist the unmerged entries up to stage #3 to make room */
322 for (i = 0; i < active_nr; i++) {
323 struct cache_entry *ce = active_cache[i];
324 if (!ce_stage(ce))
325 continue;
326 ce->ce_flags |= CE_STAGEMASK;
327 }
328
329 if (prefix) {
330 static const char *(matchbuf[2]);
331 matchbuf[0] = prefix;
332 matchbuf[1] = NULL;
333 init_pathspec(&pathspec, matchbuf);
334 pathspec.items[0].nowildcard_len = pathspec.items[0].len;
335 } else
336 init_pathspec(&pathspec, NULL);
337 if (read_tree(tree, 1, &pathspec))
338 die("unable to read tree entries %s", tree_name);
339
340 for (i = 0; i < active_nr; i++) {
341 struct cache_entry *ce = active_cache[i];
342 switch (ce_stage(ce)) {
343 case 0:
344 last_stage0 = ce;
345 /* fallthru */
346 default:
347 continue;
348 case 1:
349 /*
350 * If there is stage #0 entry for this, we do not
351 * need to show it. We use CE_UPDATE bit to mark
352 * such an entry.
353 */
354 if (last_stage0 &&
355 !strcmp(last_stage0->name, ce->name))
356 ce->ce_flags |= CE_UPDATE;
357 }
358 }
359 }
360
361 int report_path_error(const char *ps_matched, const char **pathspec, const char *prefix)
362 {
363 /*
364 * Make sure all pathspec matched; otherwise it is an error.
365 */
366 struct strbuf sb = STRBUF_INIT;
367 const char *name;
368 int num, errors = 0;
369 for (num = 0; pathspec[num]; num++) {
370 int other, found_dup;
371
372 if (ps_matched[num])
373 continue;
374 /*
375 * The caller might have fed identical pathspec
376 * twice. Do not barf on such a mistake.
377 */
378 for (found_dup = other = 0;
379 !found_dup && pathspec[other];
380 other++) {
381 if (other == num || !ps_matched[other])
382 continue;
383 if (!strcmp(pathspec[other], pathspec[num]))
384 /*
385 * Ok, we have a match already.
386 */
387 found_dup = 1;
388 }
389 if (found_dup)
390 continue;
391
392 name = quote_path_relative(pathspec[num], -1, &sb, prefix);
393 error("pathspec '%s' did not match any file(s) known to git.",
394 name);
395 errors++;
396 }
397 strbuf_release(&sb);
398 return errors;
399 }
400
401 static const char * const ls_files_usage[] = {
402 N_("git ls-files [options] [<file>...]"),
403 NULL
404 };
405
406 static int option_parse_z(const struct option *opt,
407 const char *arg, int unset)
408 {
409 line_terminator = unset ? '\n' : '\0';
410
411 return 0;
412 }
413
414 static int option_parse_exclude(const struct option *opt,
415 const char *arg, int unset)
416 {
417 struct string_list *exclude_list = opt->value;
418
419 exc_given = 1;
420 string_list_append(exclude_list, arg);
421
422 return 0;
423 }
424
425 static int option_parse_exclude_from(const struct option *opt,
426 const char *arg, int unset)
427 {
428 struct dir_struct *dir = opt->value;
429
430 exc_given = 1;
431 add_excludes_from_file(dir, arg);
432
433 return 0;
434 }
435
436 static int option_parse_exclude_standard(const struct option *opt,
437 const char *arg, int unset)
438 {
439 struct dir_struct *dir = opt->value;
440
441 exc_given = 1;
442 setup_standard_excludes(dir);
443
444 return 0;
445 }
446
447 int cmd_ls_files(int argc, const char **argv, const char *cmd_prefix)
448 {
449 int require_work_tree = 0, show_tag = 0, i;
450 const char *max_prefix;
451 struct dir_struct dir;
452 struct exclude_list *el;
453 struct string_list exclude_list = STRING_LIST_INIT_NODUP;
454 struct option builtin_ls_files_options[] = {
455 { OPTION_CALLBACK, 'z', NULL, NULL, NULL,
456 N_("paths are separated with NUL character"),
457 PARSE_OPT_NOARG, option_parse_z },
458 OPT_BOOLEAN('t', NULL, &show_tag,
459 N_("identify the file status with tags")),
460 OPT_BOOLEAN('v', NULL, &show_valid_bit,
461 N_("use lowercase letters for 'assume unchanged' files")),
462 OPT_BOOLEAN('c', "cached", &show_cached,
463 N_("show cached files in the output (default)")),
464 OPT_BOOLEAN('d', "deleted", &show_deleted,
465 N_("show deleted files in the output")),
466 OPT_BOOLEAN('m', "modified", &show_modified,
467 N_("show modified files in the output")),
468 OPT_BOOLEAN('o', "others", &show_others,
469 N_("show other files in the output")),
470 OPT_BIT('i', "ignored", &dir.flags,
471 N_("show ignored files in the output"),
472 DIR_SHOW_IGNORED),
473 OPT_BOOLEAN('s', "stage", &show_stage,
474 N_("show staged contents' object name in the output")),
475 OPT_BOOLEAN('k', "killed", &show_killed,
476 N_("show files on the filesystem that need to be removed")),
477 OPT_BIT(0, "directory", &dir.flags,
478 N_("show 'other' directories' name only"),
479 DIR_SHOW_OTHER_DIRECTORIES),
480 OPT_NEGBIT(0, "empty-directory", &dir.flags,
481 N_("don't show empty directories"),
482 DIR_HIDE_EMPTY_DIRECTORIES),
483 OPT_BOOLEAN('u', "unmerged", &show_unmerged,
484 N_("show unmerged files in the output")),
485 OPT_BOOLEAN(0, "resolve-undo", &show_resolve_undo,
486 N_("show resolve-undo information")),
487 { OPTION_CALLBACK, 'x', "exclude", &exclude_list, N_("pattern"),
488 N_("skip files matching pattern"),
489 0, option_parse_exclude },
490 { OPTION_CALLBACK, 'X', "exclude-from", &dir, N_("file"),
491 N_("exclude patterns are read from <file>"),
492 0, option_parse_exclude_from },
493 OPT_STRING(0, "exclude-per-directory", &dir.exclude_per_dir, N_("file"),
494 N_("read additional per-directory exclude patterns in <file>")),
495 { OPTION_CALLBACK, 0, "exclude-standard", &dir, NULL,
496 N_("add the standard git exclusions"),
497 PARSE_OPT_NOARG, option_parse_exclude_standard },
498 { OPTION_SET_INT, 0, "full-name", &prefix_len, NULL,
499 N_("make the output relative to the project top directory"),
500 PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL },
501 OPT_BOOLEAN(0, "error-unmatch", &error_unmatch,
502 N_("if any <file> is not in the index, treat this as an error")),
503 OPT_STRING(0, "with-tree", &with_tree, N_("tree-ish"),
504 N_("pretend that paths removed since <tree-ish> are still present")),
505 OPT__ABBREV(&abbrev),
506 OPT_BOOLEAN(0, "debug", &debug_mode, N_("show debugging data")),
507 OPT_END()
508 };
509
510 if (argc == 2 && !strcmp(argv[1], "-h"))
511 usage_with_options(ls_files_usage, builtin_ls_files_options);
512
513 memset(&dir, 0, sizeof(dir));
514 prefix = cmd_prefix;
515 if (prefix)
516 prefix_len = strlen(prefix);
517 git_config(git_default_config, NULL);
518
519 if (read_cache() < 0)
520 die("index file corrupt");
521
522 argc = parse_options(argc, argv, prefix, builtin_ls_files_options,
523 ls_files_usage, 0);
524 el = add_exclude_list(&dir, EXC_CMDL, "--exclude option");
525 for (i = 0; i < exclude_list.nr; i++) {
526 add_exclude(exclude_list.items[i].string, "", 0, el, --exclude_args);
527 }
528 if (show_tag || show_valid_bit) {
529 tag_cached = "H ";
530 tag_unmerged = "M ";
531 tag_removed = "R ";
532 tag_modified = "C ";
533 tag_other = "? ";
534 tag_killed = "K ";
535 tag_skip_worktree = "S ";
536 tag_resolve_undo = "U ";
537 }
538 if (show_modified || show_others || show_deleted || (dir.flags & DIR_SHOW_IGNORED) || show_killed)
539 require_work_tree = 1;
540 if (show_unmerged)
541 /*
542 * There's no point in showing unmerged unless
543 * you also show the stage information.
544 */
545 show_stage = 1;
546 if (dir.exclude_per_dir)
547 exc_given = 1;
548
549 if (require_work_tree && !is_inside_work_tree())
550 setup_work_tree();
551
552 pathspec = get_pathspec(prefix, argv);
553
554 /* be nice with submodule paths ending in a slash */
555 if (pathspec)
556 strip_trailing_slash_from_submodules();
557
558 /* Find common prefix for all pathspec's */
559 max_prefix = common_prefix(pathspec);
560 max_prefix_len = max_prefix ? strlen(max_prefix) : 0;
561
562 /* Treat unmatching pathspec elements as errors */
563 if (pathspec && error_unmatch) {
564 int num;
565 for (num = 0; pathspec[num]; num++)
566 ;
567 ps_matched = xcalloc(1, num);
568 }
569
570 if ((dir.flags & DIR_SHOW_IGNORED) && !exc_given)
571 die("ls-files --ignored needs some exclude pattern");
572
573 /* With no flags, we default to showing the cached files */
574 if (!(show_stage | show_deleted | show_others | show_unmerged |
575 show_killed | show_modified | show_resolve_undo))
576 show_cached = 1;
577
578 if (max_prefix)
579 prune_cache(max_prefix);
580 if (with_tree) {
581 /*
582 * Basic sanity check; show-stages and show-unmerged
583 * would not make any sense with this option.
584 */
585 if (show_stage || show_unmerged)
586 die("ls-files --with-tree is incompatible with -s or -u");
587 overlay_tree_on_cache(with_tree, max_prefix);
588 }
589 show_files(&dir);
590 if (show_resolve_undo)
591 show_ru_info();
592
593 if (ps_matched) {
594 int bad;
595 bad = report_path_error(ps_matched, pathspec, prefix);
596 if (bad)
597 fprintf(stderr, "Did you forget to 'git add'?\n");
598
599 return bad ? 1 : 0;
600 }
601
602 return 0;
603 }