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"
16static int abbrev;
18static int show_deleted;
19static int show_cached;
20static int show_others;
21static int show_stage;
22static int show_unmerged;
23static int show_resolve_undo;
24static int show_modified;
25static int show_killed;
26static int show_valid_bit;
27static int line_terminator = '\n';
28static int debug_mode;
29static const char *prefix;
31static int max_prefix_len;
32static int prefix_len;
33static const char **pathspec;
34static int error_unmatch;
35static char *ps_matched;
36static const char *with_tree;
37static int exc_given;
38static int exclude_args;
39static const char *tag_cached = "";
41static const char *tag_unmerged = "";
42static const char *tag_removed = "";
43static const char *tag_other = "";
44static const char *tag_killed = "";
45static const char *tag_modified = "";
46static const char *tag_skip_worktree = "";
47static const char *tag_resolve_undo = "";
48static 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}
54static void show_dir_entry(const char *tag, struct dir_entry *ent)
56{
57 int len = max_prefix_len;
58 if (len >= ent->len)
60 die("git ls-files: internal error - directory entry not superset of prefix");
61 if (!match_pathspec(pathspec, ent->name, ent->len, len, ps_matched))
63 return;
64 fputs(tag, stdout);
66 write_name(ent->name, ent->len);
67}
68static void show_other_files(struct dir_struct *dir)
70{
71 int i;
72 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}
80static 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 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}
129static void show_ce_entry(const char *tag, struct cache_entry *ce)
131{
132 int len = max_prefix_len;
133 if (len >= ce_namelen(ce))
135 die("git ls-files: internal error - cache entry not superset of prefix");
136 if (!match_pathspec(pathspec, ce->name, ce_namelen(ce), len, ps_matched))
138 return;
139 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 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 struct stat_data *sd = &ce->ce_stat_data;
169 printf(" ctime: %d:%d\n", sd->sd_ctime.sec, sd->sd_ctime.nsec);
171 printf(" mtime: %d:%d\n", sd->sd_mtime.sec, sd->sd_mtime.nsec);
172 printf(" dev: %d\tino: %d\n", sd->sd_dev, sd->sd_ino);
173 printf(" uid: %d\tgid: %d\n", sd->sd_uid, sd->sd_gid);
174 printf(" size: %d\tflags: %x\n", sd->sd_size, ce->ce_flags);
175 }
176}
177static void show_ru_info(void)
179{
180 struct string_list_item *item;
181 if (!the_index.resolve_undo)
183 return;
184 for_each_string_list_item(item, the_index.resolve_undo) {
186 const char *path = item->string;
187 struct resolve_undo_info *ui = item->util;
188 int i, len;
189 len = strlen(path);
191 if (len < max_prefix_len)
192 continue; /* outside of the prefix */
193 if (!match_pathspec(pathspec, path, len, max_prefix_len, ps_matched))
194 continue; /* uninterested */
195 for (i = 0; i < 3; i++) {
196 if (!ui->mode[i])
197 continue;
198 printf("%s%06o %s %d\t", tag_resolve_undo, ui->mode[i],
199 find_unique_abbrev(ui->sha1[i], abbrev),
200 i + 1);
201 write_name(path, len);
202 }
203 }
204}
205static int ce_excluded(struct dir_struct *dir, struct cache_entry *ce)
207{
208 int dtype = ce_to_dtype(ce);
209 return is_excluded(dir, ce->name, &dtype);
210}
211static void show_files(struct dir_struct *dir)
213{
214 int i;
215 /* For cached/deleted files we don't need to even do the readdir */
217 if (show_others || show_killed) {
218 fill_directory(dir, pathspec);
219 if (show_others)
220 show_other_files(dir);
221 if (show_killed)
222 show_killed_files(dir);
223 }
224 if (show_cached || show_stage) {
225 for (i = 0; i < active_nr; i++) {
226 struct cache_entry *ce = active_cache[i];
227 if ((dir->flags & DIR_SHOW_IGNORED) &&
228 !ce_excluded(dir, ce))
229 continue;
230 if (show_unmerged && !ce_stage(ce))
231 continue;
232 if (ce->ce_flags & CE_UPDATE)
233 continue;
234 show_ce_entry(ce_stage(ce) ? tag_unmerged :
235 (ce_skip_worktree(ce) ? tag_skip_worktree : tag_cached), ce);
236 }
237 }
238 if (show_deleted || show_modified) {
239 for (i = 0; i < active_nr; i++) {
240 struct cache_entry *ce = active_cache[i];
241 struct stat st;
242 int err;
243 if ((dir->flags & DIR_SHOW_IGNORED) &&
244 !ce_excluded(dir, ce))
245 continue;
246 if (ce->ce_flags & CE_UPDATE)
247 continue;
248 if (ce_skip_worktree(ce))
249 continue;
250 err = lstat(ce->name, &st);
251 if (show_deleted && err)
252 show_ce_entry(tag_removed, ce);
253 if (show_modified && ce_modified(ce, &st, 0))
254 show_ce_entry(tag_modified, ce);
255 }
256 }
257}
258/*
260 * Prune the index to only contain stuff starting with "prefix"
261 */
262static void prune_cache(const char *prefix)
263{
264 int pos = cache_name_pos(prefix, max_prefix_len);
265 unsigned int first, last;
266 if (pos < 0)
268 pos = -pos-1;
269 memmove(active_cache, active_cache + pos,
270 (active_nr - pos) * sizeof(struct cache_entry *));
271 active_nr -= pos;
272 first = 0;
273 last = active_nr;
274 while (last > first) {
275 int next = (last + first) >> 1;
276 struct cache_entry *ce = active_cache[next];
277 if (!strncmp(ce->name, prefix, max_prefix_len)) {
278 first = next+1;
279 continue;
280 }
281 last = next;
282 }
283 active_nr = last;
284}
285static void strip_trailing_slash_from_submodules(void)
287{
288 const char **p;
289 for (p = pathspec; *p != NULL; p++) {
291 int len = strlen(*p), pos;
292 if (len < 1 || (*p)[len - 1] != '/')
294 continue;
295 pos = cache_name_pos(*p, len - 1);
296 if (pos >= 0 && S_ISGITLINK(active_cache[pos]->ce_mode))
297 *p = xstrndup(*p, len - 1);
298 }
299}
300/*
302 * Read the tree specified with --with-tree option
303 * (typically, HEAD) into stage #1 and then
304 * squash them down to stage #0. This is used for
305 * --error-unmatch to list and check the path patterns
306 * that were given from the command line. We are not
307 * going to write this index out.
308 */
309void overlay_tree_on_cache(const char *tree_name, const char *prefix)
310{
311 struct tree *tree;
312 unsigned char sha1[20];
313 struct pathspec pathspec;
314 struct cache_entry *last_stage0 = NULL;
315 int i;
316 if (get_sha1(tree_name, sha1))
318 die("tree-ish %s not found.", tree_name);
319 tree = parse_tree_indirect(sha1);
320 if (!tree)
321 die("bad tree-ish %s", tree_name);
322 /* Hoist the unmerged entries up to stage #3 to make room */
324 for (i = 0; i < active_nr; i++) {
325 struct cache_entry *ce = active_cache[i];
326 if (!ce_stage(ce))
327 continue;
328 ce->ce_flags |= CE_STAGEMASK;
329 }
330 if (prefix) {
332 static const char *(matchbuf[2]);
333 matchbuf[0] = prefix;
334 matchbuf[1] = NULL;
335 init_pathspec(&pathspec, matchbuf);
336 pathspec.items[0].nowildcard_len = pathspec.items[0].len;
337 } else
338 init_pathspec(&pathspec, NULL);
339 if (read_tree(tree, 1, &pathspec))
340 die("unable to read tree entries %s", tree_name);
341 for (i = 0; i < active_nr; i++) {
343 struct cache_entry *ce = active_cache[i];
344 switch (ce_stage(ce)) {
345 case 0:
346 last_stage0 = ce;
347 /* fallthru */
348 default:
349 continue;
350 case 1:
351 /*
352 * If there is stage #0 entry for this, we do not
353 * need to show it. We use CE_UPDATE bit to mark
354 * such an entry.
355 */
356 if (last_stage0 &&
357 !strcmp(last_stage0->name, ce->name))
358 ce->ce_flags |= CE_UPDATE;
359 }
360 }
361}
362int report_path_error(const char *ps_matched, const char **pathspec, const char *prefix)
364{
365 /*
366 * Make sure all pathspec matched; otherwise it is an error.
367 */
368 struct strbuf sb = STRBUF_INIT;
369 const char *name;
370 int num, errors = 0;
371 for (num = 0; pathspec[num]; num++) {
372 int other, found_dup;
373 if (ps_matched[num])
375 continue;
376 /*
377 * The caller might have fed identical pathspec
378 * twice. Do not barf on such a mistake.
379 */
380 for (found_dup = other = 0;
381 !found_dup && pathspec[other];
382 other++) {
383 if (other == num || !ps_matched[other])
384 continue;
385 if (!strcmp(pathspec[other], pathspec[num]))
386 /*
387 * Ok, we have a match already.
388 */
389 found_dup = 1;
390 }
391 if (found_dup)
392 continue;
393 name = quote_path_relative(pathspec[num], -1, &sb, prefix);
395 error("pathspec '%s' did not match any file(s) known to git.",
396 name);
397 errors++;
398 }
399 strbuf_release(&sb);
400 return errors;
401}
402static const char * const ls_files_usage[] = {
404 N_("git ls-files [options] [<file>...]"),
405 NULL
406};
407static int option_parse_z(const struct option *opt,
409 const char *arg, int unset)
410{
411 line_terminator = unset ? '\n' : '\0';
412 return 0;
414}
415static int option_parse_exclude(const struct option *opt,
417 const char *arg, int unset)
418{
419 struct string_list *exclude_list = opt->value;
420 exc_given = 1;
422 string_list_append(exclude_list, arg);
423 return 0;
425}
426static int option_parse_exclude_from(const struct option *opt,
428 const char *arg, int unset)
429{
430 struct dir_struct *dir = opt->value;
431 exc_given = 1;
433 add_excludes_from_file(dir, arg);
434 return 0;
436}
437static int option_parse_exclude_standard(const struct option *opt,
439 const char *arg, int unset)
440{
441 struct dir_struct *dir = opt->value;
442 exc_given = 1;
444 setup_standard_excludes(dir);
445 return 0;
447}
448int cmd_ls_files(int argc, const char **argv, const char *cmd_prefix)
450{
451 int require_work_tree = 0, show_tag = 0, i;
452 const char *max_prefix;
453 struct dir_struct dir;
454 struct exclude_list *el;
455 struct string_list exclude_list = STRING_LIST_INIT_NODUP;
456 struct option builtin_ls_files_options[] = {
457 { OPTION_CALLBACK, 'z', NULL, NULL, NULL,
458 N_("paths are separated with NUL character"),
459 PARSE_OPT_NOARG, option_parse_z },
460 OPT_BOOLEAN('t', NULL, &show_tag,
461 N_("identify the file status with tags")),
462 OPT_BOOLEAN('v', NULL, &show_valid_bit,
463 N_("use lowercase letters for 'assume unchanged' files")),
464 OPT_BOOLEAN('c', "cached", &show_cached,
465 N_("show cached files in the output (default)")),
466 OPT_BOOLEAN('d', "deleted", &show_deleted,
467 N_("show deleted files in the output")),
468 OPT_BOOLEAN('m', "modified", &show_modified,
469 N_("show modified files in the output")),
470 OPT_BOOLEAN('o', "others", &show_others,
471 N_("show other files in the output")),
472 OPT_BIT('i', "ignored", &dir.flags,
473 N_("show ignored files in the output"),
474 DIR_SHOW_IGNORED),
475 OPT_BOOLEAN('s', "stage", &show_stage,
476 N_("show staged contents' object name in the output")),
477 OPT_BOOLEAN('k', "killed", &show_killed,
478 N_("show files on the filesystem that need to be removed")),
479 OPT_BIT(0, "directory", &dir.flags,
480 N_("show 'other' directories' name only"),
481 DIR_SHOW_OTHER_DIRECTORIES),
482 OPT_NEGBIT(0, "empty-directory", &dir.flags,
483 N_("don't show empty directories"),
484 DIR_HIDE_EMPTY_DIRECTORIES),
485 OPT_BOOLEAN('u', "unmerged", &show_unmerged,
486 N_("show unmerged files in the output")),
487 OPT_BOOLEAN(0, "resolve-undo", &show_resolve_undo,
488 N_("show resolve-undo information")),
489 { OPTION_CALLBACK, 'x', "exclude", &exclude_list, N_("pattern"),
490 N_("skip files matching pattern"),
491 0, option_parse_exclude },
492 { OPTION_CALLBACK, 'X', "exclude-from", &dir, N_("file"),
493 N_("exclude patterns are read from <file>"),
494 0, option_parse_exclude_from },
495 OPT_STRING(0, "exclude-per-directory", &dir.exclude_per_dir, N_("file"),
496 N_("read additional per-directory exclude patterns in <file>")),
497 { OPTION_CALLBACK, 0, "exclude-standard", &dir, NULL,
498 N_("add the standard git exclusions"),
499 PARSE_OPT_NOARG, option_parse_exclude_standard },
500 { OPTION_SET_INT, 0, "full-name", &prefix_len, NULL,
501 N_("make the output relative to the project top directory"),
502 PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL },
503 OPT_BOOLEAN(0, "error-unmatch", &error_unmatch,
504 N_("if any <file> is not in the index, treat this as an error")),
505 OPT_STRING(0, "with-tree", &with_tree, N_("tree-ish"),
506 N_("pretend that paths removed since <tree-ish> are still present")),
507 OPT__ABBREV(&abbrev),
508 OPT_BOOLEAN(0, "debug", &debug_mode, N_("show debugging data")),
509 OPT_END()
510 };
511 if (argc == 2 && !strcmp(argv[1], "-h"))
513 usage_with_options(ls_files_usage, builtin_ls_files_options);
514 memset(&dir, 0, sizeof(dir));
516 prefix = cmd_prefix;
517 if (prefix)
518 prefix_len = strlen(prefix);
519 git_config(git_default_config, NULL);
520 if (read_cache() < 0)
522 die("index file corrupt");
523 argc = parse_options(argc, argv, prefix, builtin_ls_files_options,
525 ls_files_usage, 0);
526 el = add_exclude_list(&dir, EXC_CMDL, "--exclude option");
527 for (i = 0; i < exclude_list.nr; i++) {
528 add_exclude(exclude_list.items[i].string, "", 0, el, --exclude_args);
529 }
530 if (show_tag || show_valid_bit) {
531 tag_cached = "H ";
532 tag_unmerged = "M ";
533 tag_removed = "R ";
534 tag_modified = "C ";
535 tag_other = "? ";
536 tag_killed = "K ";
537 tag_skip_worktree = "S ";
538 tag_resolve_undo = "U ";
539 }
540 if (show_modified || show_others || show_deleted || (dir.flags & DIR_SHOW_IGNORED) || show_killed)
541 require_work_tree = 1;
542 if (show_unmerged)
543 /*
544 * There's no point in showing unmerged unless
545 * you also show the stage information.
546 */
547 show_stage = 1;
548 if (dir.exclude_per_dir)
549 exc_given = 1;
550 if (require_work_tree && !is_inside_work_tree())
552 setup_work_tree();
553 pathspec = get_pathspec(prefix, argv);
555 /* be nice with submodule paths ending in a slash */
557 if (pathspec)
558 strip_trailing_slash_from_submodules();
559 /* Find common prefix for all pathspec's */
561 max_prefix = common_prefix(pathspec);
562 max_prefix_len = max_prefix ? strlen(max_prefix) : 0;
563 /* Treat unmatching pathspec elements as errors */
565 if (pathspec && error_unmatch) {
566 int num;
567 for (num = 0; pathspec[num]; num++)
568 ;
569 ps_matched = xcalloc(1, num);
570 }
571 if ((dir.flags & DIR_SHOW_IGNORED) && !exc_given)
573 die("ls-files --ignored needs some exclude pattern");
574 /* With no flags, we default to showing the cached files */
576 if (!(show_stage || show_deleted || show_others || show_unmerged ||
577 show_killed || show_modified || show_resolve_undo))
578 show_cached = 1;
579 if (max_prefix)
581 prune_cache(max_prefix);
582 if (with_tree) {
583 /*
584 * Basic sanity check; show-stages and show-unmerged
585 * would not make any sense with this option.
586 */
587 if (show_stage || show_unmerged)
588 die("ls-files --with-tree is incompatible with -s or -u");
589 overlay_tree_on_cache(with_tree, max_prefix);
590 }
591 show_files(&dir);
592 if (show_resolve_undo)
593 show_ru_info();
594 if (ps_matched) {
596 int bad;
597 bad = report_path_error(ps_matched, pathspec, prefix);
598 if (bad)
599 fprintf(stderr, "Did you forget to 'git add'?\n");
600 return bad ? 1 : 0;
602 }
603 return 0;
605}