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 const char *tag_cached = "";
40static const char *tag_unmerged = "";
41static const char *tag_removed = "";
42static const char *tag_other = "";
43static const char *tag_killed = "";
44static const char *tag_modified = "";
45static const char *tag_skip_worktree = "";
46static const char *tag_resolve_undo = "";
47static void write_name(const char* name, size_t len)
49{
50 write_name_quoted_relative(name, len, prefix, prefix_len, stdout,
51 line_terminator);
52}
53static void show_dir_entry(const char *tag, struct dir_entry *ent)
55{
56 int len = max_prefix_len;
57 if (len >= ent->len)
59 die("git ls-files: internal error - directory entry not superset of prefix");
60 if (!match_pathspec(pathspec, ent->name, ent->len, len, ps_matched))
62 return;
63 fputs(tag, stdout);
65 write_name(ent->name, ent->len);
66}
67static void show_other_files(struct dir_struct *dir)
69{
70 int i;
71 for (i = 0; i < dir->nr; i++) {
73 struct dir_entry *ent = dir->entries[i];
74 if (!cache_name_is_other(ent->name, ent->len))
75 continue;
76 show_dir_entry(tag_other, ent);
77 }
78}
79static void show_killed_files(struct dir_struct *dir)
81{
82 int i;
83 for (i = 0; i < dir->nr; i++) {
84 struct dir_entry *ent = dir->entries[i];
85 char *cp, *sp;
86 int pos, len, killed = 0;
87 for (cp = ent->name; cp - ent->name < ent->len; cp = sp + 1) {
89 sp = strchr(cp, '/');
90 if (!sp) {
91 /* If ent->name is prefix of an entry in the
92 * cache, it will be killed.
93 */
94 pos = cache_name_pos(ent->name, ent->len);
95 if (0 <= pos)
96 die("bug in show-killed-files");
97 pos = -pos - 1;
98 while (pos < active_nr &&
99 ce_stage(active_cache[pos]))
100 pos++; /* skip unmerged */
101 if (active_nr <= pos)
102 break;
103 /* pos points at a name immediately after
104 * ent->name in the cache. Does it expect
105 * ent->name to be a directory?
106 */
107 len = ce_namelen(active_cache[pos]);
108 if ((ent->len < len) &&
109 !strncmp(active_cache[pos]->name,
110 ent->name, ent->len) &&
111 active_cache[pos]->name[ent->len] == '/')
112 killed = 1;
113 break;
114 }
115 if (0 <= cache_name_pos(ent->name, sp - ent->name)) {
116 /* If any of the leading directories in
117 * ent->name is registered in the cache,
118 * ent->name will be killed.
119 */
120 killed = 1;
121 break;
122 }
123 }
124 if (killed)
125 show_dir_entry(tag_killed, dir->entries[i]);
126 }
127}
128static void show_ce_entry(const char *tag, struct cache_entry *ce)
130{
131 int len = max_prefix_len;
132 if (len >= ce_namelen(ce))
134 die("git ls-files: internal error - cache entry not superset of prefix");
135 if (!match_pathspec(pathspec, ce->name, ce_namelen(ce), len, ps_matched))
137 return;
138 if (tag && *tag && show_valid_bit &&
140 (ce->ce_flags & CE_VALID)) {
141 static char alttag[4];
142 memcpy(alttag, tag, 3);
143 if (isalpha(tag[0]))
144 alttag[0] = tolower(tag[0]);
145 else if (tag[0] == '?')
146 alttag[0] = '!';
147 else {
148 alttag[0] = 'v';
149 alttag[1] = tag[0];
150 alttag[2] = ' ';
151 alttag[3] = 0;
152 }
153 tag = alttag;
154 }
155 if (!show_stage) {
157 fputs(tag, stdout);
158 } else {
159 printf("%s%06o %s %d\t",
160 tag,
161 ce->ce_mode,
162 find_unique_abbrev(ce->sha1,abbrev),
163 ce_stage(ce));
164 }
165 write_name(ce->name, ce_namelen(ce));
166 if (debug_mode) {
167 printf(" ctime: %d:%d\n", ce->ce_ctime.sec, ce->ce_ctime.nsec);
168 printf(" mtime: %d:%d\n", ce->ce_mtime.sec, ce->ce_mtime.nsec);
169 printf(" dev: %d\tino: %d\n", ce->ce_dev, ce->ce_ino);
170 printf(" uid: %d\tgid: %d\n", ce->ce_uid, ce->ce_gid);
171 printf(" size: %d\tflags: %x\n", ce->ce_size, ce->ce_flags);
172 }
173}
174static void show_ru_info(void)
176{
177 struct string_list_item *item;
178 if (!the_index.resolve_undo)
180 return;
181 for_each_string_list_item(item, the_index.resolve_undo) {
183 const char *path = item->string;
184 struct resolve_undo_info *ui = item->util;
185 int i, len;
186 len = strlen(path);
188 if (len < max_prefix_len)
189 continue; /* outside of the prefix */
190 if (!match_pathspec(pathspec, path, len, max_prefix_len, ps_matched))
191 continue; /* uninterested */
192 for (i = 0; i < 3; i++) {
193 if (!ui->mode[i])
194 continue;
195 printf("%s%06o %s %d\t", tag_resolve_undo, ui->mode[i],
196 find_unique_abbrev(ui->sha1[i], abbrev),
197 i + 1);
198 write_name(path, len);
199 }
200 }
201}
202static void show_files(struct dir_struct *dir)
204{
205 int i;
206 /* For cached/deleted files we don't need to even do the readdir */
208 if (show_others || show_killed) {
209 fill_directory(dir, pathspec);
210 if (show_others)
211 show_other_files(dir);
212 if (show_killed)
213 show_killed_files(dir);
214 }
215 if (show_cached | show_stage) {
216 for (i = 0; i < active_nr; i++) {
217 struct cache_entry *ce = active_cache[i];
218 int dtype = ce_to_dtype(ce);
219 if (dir->flags & DIR_SHOW_IGNORED &&
220 !excluded(dir, ce->name, &dtype))
221 continue;
222 if (show_unmerged && !ce_stage(ce))
223 continue;
224 if (ce->ce_flags & CE_UPDATE)
225 continue;
226 show_ce_entry(ce_stage(ce) ? tag_unmerged :
227 (ce_skip_worktree(ce) ? tag_skip_worktree : tag_cached), ce);
228 }
229 }
230 if (show_deleted | show_modified) {
231 for (i = 0; i < active_nr; i++) {
232 struct cache_entry *ce = active_cache[i];
233 struct stat st;
234 int err;
235 int dtype = ce_to_dtype(ce);
236 if (dir->flags & DIR_SHOW_IGNORED &&
237 !excluded(dir, ce->name, &dtype))
238 continue;
239 if (ce->ce_flags & CE_UPDATE)
240 continue;
241 if (ce_skip_worktree(ce))
242 continue;
243 err = lstat(ce->name, &st);
244 if (show_deleted && err)
245 show_ce_entry(tag_removed, ce);
246 if (show_modified && ce_modified(ce, &st, 0))
247 show_ce_entry(tag_modified, ce);
248 }
249 }
250}
251/*
253 * Prune the index to only contain stuff starting with "prefix"
254 */
255static void prune_cache(const char *prefix)
256{
257 int pos = cache_name_pos(prefix, max_prefix_len);
258 unsigned int first, last;
259 if (pos < 0)
261 pos = -pos-1;
262 memmove(active_cache, active_cache + pos,
263 (active_nr - pos) * sizeof(struct cache_entry *));
264 active_nr -= pos;
265 first = 0;
266 last = active_nr;
267 while (last > first) {
268 int next = (last + first) >> 1;
269 struct cache_entry *ce = active_cache[next];
270 if (!strncmp(ce->name, prefix, max_prefix_len)) {
271 first = next+1;
272 continue;
273 }
274 last = next;
275 }
276 active_nr = last;
277}
278static const char *pathspec_prefix(const char *prefix)
280{
281 const char **p, *n, *prev;
282 unsigned long max;
283 if (!pathspec) {
285 max_prefix_len = prefix ? strlen(prefix) : 0;
286 return prefix;
287 }
288 prev = NULL;
290 max = PATH_MAX;
291 for (p = pathspec; (n = *p) != NULL; p++) {
292 int i, len = 0;
293 for (i = 0; i < max; i++) {
294 char c = n[i];
295 if (prev && prev[i] != c)
296 break;
297 if (!c || c == '*' || c == '?')
298 break;
299 if (c == '/')
300 len = i+1;
301 }
302 prev = n;
303 if (len < max) {
304 max = len;
305 if (!max)
306 break;
307 }
308 }
309 max_prefix_len = max;
311 return max ? xmemdupz(prev, max) : NULL;
312}
313static void strip_trailing_slash_from_submodules(void)
315{
316 const char **p;
317 for (p = pathspec; *p != NULL; p++) {
319 int len = strlen(*p), pos;
320 if (len < 1 || (*p)[len - 1] != '/')
322 continue;
323 pos = cache_name_pos(*p, len - 1);
324 if (pos >= 0 && S_ISGITLINK(active_cache[pos]->ce_mode))
325 *p = xstrndup(*p, len - 1);
326 }
327}
328/*
330 * Read the tree specified with --with-tree option
331 * (typically, HEAD) into stage #1 and then
332 * squash them down to stage #0. This is used for
333 * --error-unmatch to list and check the path patterns
334 * that were given from the command line. We are not
335 * going to write this index out.
336 */
337void overlay_tree_on_cache(const char *tree_name, const char *prefix)
338{
339 struct tree *tree;
340 unsigned char sha1[20];
341 const char **match;
342 struct cache_entry *last_stage0 = NULL;
343 int i;
344 if (get_sha1(tree_name, sha1))
346 die("tree-ish %s not found.", tree_name);
347 tree = parse_tree_indirect(sha1);
348 if (!tree)
349 die("bad tree-ish %s", tree_name);
350 /* Hoist the unmerged entries up to stage #3 to make room */
352 for (i = 0; i < active_nr; i++) {
353 struct cache_entry *ce = active_cache[i];
354 if (!ce_stage(ce))
355 continue;
356 ce->ce_flags |= CE_STAGEMASK;
357 }
358 if (prefix) {
360 static const char *(matchbuf[2]);
361 matchbuf[0] = prefix;
362 matchbuf[1] = NULL;
363 match = matchbuf;
364 } else
365 match = NULL;
366 if (read_tree(tree, 1, match))
367 die("unable to read tree entries %s", tree_name);
368 for (i = 0; i < active_nr; i++) {
370 struct cache_entry *ce = active_cache[i];
371 switch (ce_stage(ce)) {
372 case 0:
373 last_stage0 = ce;
374 /* fallthru */
375 default:
376 continue;
377 case 1:
378 /*
379 * If there is stage #0 entry for this, we do not
380 * need to show it. We use CE_UPDATE bit to mark
381 * such an entry.
382 */
383 if (last_stage0 &&
384 !strcmp(last_stage0->name, ce->name))
385 ce->ce_flags |= CE_UPDATE;
386 }
387 }
388}
389int report_path_error(const char *ps_matched, const char **pathspec, int prefix_len)
391{
392 /*
393 * Make sure all pathspec matched; otherwise it is an error.
394 */
395 int num, errors = 0;
396 for (num = 0; pathspec[num]; num++) {
397 int other, found_dup;
398 if (ps_matched[num])
400 continue;
401 /*
402 * The caller might have fed identical pathspec
403 * twice. Do not barf on such a mistake.
404 */
405 for (found_dup = other = 0;
406 !found_dup && pathspec[other];
407 other++) {
408 if (other == num || !ps_matched[other])
409 continue;
410 if (!strcmp(pathspec[other], pathspec[num]))
411 /*
412 * Ok, we have a match already.
413 */
414 found_dup = 1;
415 }
416 if (found_dup)
417 continue;
418 error("pathspec '%s' did not match any file(s) known to git.",
420 pathspec[num] + prefix_len);
421 errors++;
422 }
423 return errors;
424}
425static const char * const ls_files_usage[] = {
427 "git ls-files [options] [<file>...]",
428 NULL
429};
430static int option_parse_z(const struct option *opt,
432 const char *arg, int unset)
433{
434 line_terminator = unset ? '\n' : '\0';
435 return 0;
437}
438static int option_parse_exclude(const struct option *opt,
440 const char *arg, int unset)
441{
442 struct exclude_list *list = opt->value;
443 exc_given = 1;
445 add_exclude(arg, "", 0, list);
446 return 0;
448}
449static int option_parse_exclude_from(const struct option *opt,
451 const char *arg, int unset)
452{
453 struct dir_struct *dir = opt->value;
454 exc_given = 1;
456 add_excludes_from_file(dir, arg);
457 return 0;
459}
460static int option_parse_exclude_standard(const struct option *opt,
462 const char *arg, int unset)
463{
464 struct dir_struct *dir = opt->value;
465 exc_given = 1;
467 setup_standard_excludes(dir);
468 return 0;
470}
471int cmd_ls_files(int argc, const char **argv, const char *cmd_prefix)
473{
474 int require_work_tree = 0, show_tag = 0;
475 const char *max_prefix;
476 struct dir_struct dir;
477 struct option builtin_ls_files_options[] = {
478 { OPTION_CALLBACK, 'z', NULL, NULL, NULL,
479 "paths are separated with NUL character",
480 PARSE_OPT_NOARG, option_parse_z },
481 OPT_BOOLEAN('t', NULL, &show_tag,
482 "identify the file status with tags"),
483 OPT_BOOLEAN('v', NULL, &show_valid_bit,
484 "use lowercase letters for 'assume unchanged' files"),
485 OPT_BOOLEAN('c', "cached", &show_cached,
486 "show cached files in the output (default)"),
487 OPT_BOOLEAN('d', "deleted", &show_deleted,
488 "show deleted files in the output"),
489 OPT_BOOLEAN('m', "modified", &show_modified,
490 "show modified files in the output"),
491 OPT_BOOLEAN('o', "others", &show_others,
492 "show other files in the output"),
493 OPT_BIT('i', "ignored", &dir.flags,
494 "show ignored files in the output",
495 DIR_SHOW_IGNORED),
496 OPT_BOOLEAN('s', "stage", &show_stage,
497 "show staged contents' object name in the output"),
498 OPT_BOOLEAN('k', "killed", &show_killed,
499 "show files on the filesystem that need to be removed"),
500 OPT_BIT(0, "directory", &dir.flags,
501 "show 'other' directories' name only",
502 DIR_SHOW_OTHER_DIRECTORIES),
503 OPT_NEGBIT(0, "empty-directory", &dir.flags,
504 "don't show empty directories",
505 DIR_HIDE_EMPTY_DIRECTORIES),
506 OPT_BOOLEAN('u', "unmerged", &show_unmerged,
507 "show unmerged files in the output"),
508 OPT_BOOLEAN(0, "resolve-undo", &show_resolve_undo,
509 "show resolve-undo information"),
510 { OPTION_CALLBACK, 'x', "exclude", &dir.exclude_list[EXC_CMDL], "pattern",
511 "skip files matching pattern",
512 0, option_parse_exclude },
513 { OPTION_CALLBACK, 'X', "exclude-from", &dir, "file",
514 "exclude patterns are read from <file>",
515 0, option_parse_exclude_from },
516 OPT_STRING(0, "exclude-per-directory", &dir.exclude_per_dir, "file",
517 "read additional per-directory exclude patterns in <file>"),
518 { OPTION_CALLBACK, 0, "exclude-standard", &dir, NULL,
519 "add the standard git exclusions",
520 PARSE_OPT_NOARG, option_parse_exclude_standard },
521 { OPTION_SET_INT, 0, "full-name", &prefix_len, NULL,
522 "make the output relative to the project top directory",
523 PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL },
524 OPT_BOOLEAN(0, "error-unmatch", &error_unmatch,
525 "if any <file> is not in the index, treat this as an error"),
526 OPT_STRING(0, "with-tree", &with_tree, "tree-ish",
527 "pretend that paths removed since <tree-ish> are still present"),
528 OPT__ABBREV(&abbrev),
529 OPT_BOOLEAN(0, "debug", &debug_mode, "show debugging data"),
530 OPT_END()
531 };
532 memset(&dir, 0, sizeof(dir));
534 prefix = cmd_prefix;
535 if (prefix)
536 prefix_len = strlen(prefix);
537 git_config(git_default_config, NULL);
538 if (read_cache() < 0)
540 die("index file corrupt");
541 argc = parse_options(argc, argv, prefix, builtin_ls_files_options,
543 ls_files_usage, 0);
544 if (show_tag || show_valid_bit) {
545 tag_cached = "H ";
546 tag_unmerged = "M ";
547 tag_removed = "R ";
548 tag_modified = "C ";
549 tag_other = "? ";
550 tag_killed = "K ";
551 tag_skip_worktree = "S ";
552 tag_resolve_undo = "U ";
553 }
554 if (show_modified || show_others || show_deleted || (dir.flags & DIR_SHOW_IGNORED) || show_killed)
555 require_work_tree = 1;
556 if (show_unmerged)
557 /*
558 * There's no point in showing unmerged unless
559 * you also show the stage information.
560 */
561 show_stage = 1;
562 if (dir.exclude_per_dir)
563 exc_given = 1;
564 if (require_work_tree && !is_inside_work_tree())
566 setup_work_tree();
567 pathspec = get_pathspec(prefix, argv);
569 /* be nice with submodule paths ending in a slash */
571 if (pathspec)
572 strip_trailing_slash_from_submodules();
573 /* Find common prefix for all pathspec's */
575 max_prefix = pathspec_prefix(prefix);
576 /* Treat unmatching pathspec elements as errors */
578 if (pathspec && error_unmatch) {
579 int num;
580 for (num = 0; pathspec[num]; num++)
581 ;
582 ps_matched = xcalloc(1, num);
583 }
584 if ((dir.flags & DIR_SHOW_IGNORED) && !exc_given)
586 die("ls-files --ignored needs some exclude pattern");
587 /* With no flags, we default to showing the cached files */
589 if (!(show_stage | show_deleted | show_others | show_unmerged |
590 show_killed | show_modified | show_resolve_undo))
591 show_cached = 1;
592 if (max_prefix)
594 prune_cache(max_prefix);
595 if (with_tree) {
596 /*
597 * Basic sanity check; show-stages and show-unmerged
598 * would not make any sense with this option.
599 */
600 if (show_stage || show_unmerged)
601 die("ls-files --with-tree is incompatible with -s or -u");
602 overlay_tree_on_cache(with_tree, max_prefix);
603 }
604 show_files(&dir);
605 if (show_resolve_undo)
606 show_ru_info();
607 if (ps_matched) {
609 int bad;
610 bad = report_path_error(ps_matched, pathspec, prefix_len);
611 if (bad)
612 fprintf(stderr, "Did you forget to 'git add'?\n");
613 return bad ? 1 : 0;
615 }
616 return 0;
618}