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 void strip_trailing_slash_from_submodules(void)
280{
281 const char **p;
282 for (p = pathspec; *p != NULL; p++) {
284 int len = strlen(*p), pos;
285 if (len < 1 || (*p)[len - 1] != '/')
287 continue;
288 pos = cache_name_pos(*p, len - 1);
289 if (pos >= 0 && S_ISGITLINK(active_cache[pos]->ce_mode))
290 *p = xstrndup(*p, len - 1);
291 }
292}
293/*
295 * Read the tree specified with --with-tree option
296 * (typically, HEAD) into stage #1 and then
297 * squash them down to stage #0. This is used for
298 * --error-unmatch to list and check the path patterns
299 * that were given from the command line. We are not
300 * going to write this index out.
301 */
302void overlay_tree_on_cache(const char *tree_name, const char *prefix)
303{
304 struct tree *tree;
305 unsigned char sha1[20];
306 struct pathspec pathspec;
307 struct cache_entry *last_stage0 = NULL;
308 int i;
309 if (get_sha1(tree_name, sha1))
311 die("tree-ish %s not found.", tree_name);
312 tree = parse_tree_indirect(sha1);
313 if (!tree)
314 die("bad tree-ish %s", tree_name);
315 /* Hoist the unmerged entries up to stage #3 to make room */
317 for (i = 0; i < active_nr; i++) {
318 struct cache_entry *ce = active_cache[i];
319 if (!ce_stage(ce))
320 continue;
321 ce->ce_flags |= CE_STAGEMASK;
322 }
323 if (prefix) {
325 static const char *(matchbuf[2]);
326 matchbuf[0] = prefix;
327 matchbuf[1] = NULL;
328 init_pathspec(&pathspec, matchbuf);
329 pathspec.items[0].use_wildcard = 0;
330 } else
331 init_pathspec(&pathspec, NULL);
332 if (read_tree(tree, 1, &pathspec))
333 die("unable to read tree entries %s", tree_name);
334 for (i = 0; i < active_nr; i++) {
336 struct cache_entry *ce = active_cache[i];
337 switch (ce_stage(ce)) {
338 case 0:
339 last_stage0 = ce;
340 /* fallthru */
341 default:
342 continue;
343 case 1:
344 /*
345 * If there is stage #0 entry for this, we do not
346 * need to show it. We use CE_UPDATE bit to mark
347 * such an entry.
348 */
349 if (last_stage0 &&
350 !strcmp(last_stage0->name, ce->name))
351 ce->ce_flags |= CE_UPDATE;
352 }
353 }
354}
355int report_path_error(const char *ps_matched, const char **pathspec, int prefix_len)
357{
358 /*
359 * Make sure all pathspec matched; otherwise it is an error.
360 */
361 int num, errors = 0;
362 for (num = 0; pathspec[num]; num++) {
363 int other, found_dup;
364 if (ps_matched[num])
366 continue;
367 /*
368 * The caller might have fed identical pathspec
369 * twice. Do not barf on such a mistake.
370 */
371 for (found_dup = other = 0;
372 !found_dup && pathspec[other];
373 other++) {
374 if (other == num || !ps_matched[other])
375 continue;
376 if (!strcmp(pathspec[other], pathspec[num]))
377 /*
378 * Ok, we have a match already.
379 */
380 found_dup = 1;
381 }
382 if (found_dup)
383 continue;
384 error("pathspec '%s' did not match any file(s) known to git.",
386 pathspec[num] + prefix_len);
387 errors++;
388 }
389 return errors;
390}
391static const char * const ls_files_usage[] = {
393 "git ls-files [options] [<file>...]",
394 NULL
395};
396static int option_parse_z(const struct option *opt,
398 const char *arg, int unset)
399{
400 line_terminator = unset ? '\n' : '\0';
401 return 0;
403}
404static int option_parse_exclude(const struct option *opt,
406 const char *arg, int unset)
407{
408 struct exclude_list *list = opt->value;
409 exc_given = 1;
411 add_exclude(arg, "", 0, list);
412 return 0;
414}
415static int option_parse_exclude_from(const struct option *opt,
417 const char *arg, int unset)
418{
419 struct dir_struct *dir = opt->value;
420 exc_given = 1;
422 add_excludes_from_file(dir, arg);
423 return 0;
425}
426static int option_parse_exclude_standard(const struct option *opt,
428 const char *arg, int unset)
429{
430 struct dir_struct *dir = opt->value;
431 exc_given = 1;
433 setup_standard_excludes(dir);
434 return 0;
436}
437int cmd_ls_files(int argc, const char **argv, const char *cmd_prefix)
439{
440 int require_work_tree = 0, show_tag = 0;
441 const char *max_prefix;
442 struct dir_struct dir;
443 struct option builtin_ls_files_options[] = {
444 { OPTION_CALLBACK, 'z', NULL, NULL, NULL,
445 "paths are separated with NUL character",
446 PARSE_OPT_NOARG, option_parse_z },
447 OPT_BOOLEAN('t', NULL, &show_tag,
448 "identify the file status with tags"),
449 OPT_BOOLEAN('v', NULL, &show_valid_bit,
450 "use lowercase letters for 'assume unchanged' files"),
451 OPT_BOOLEAN('c', "cached", &show_cached,
452 "show cached files in the output (default)"),
453 OPT_BOOLEAN('d', "deleted", &show_deleted,
454 "show deleted files in the output"),
455 OPT_BOOLEAN('m', "modified", &show_modified,
456 "show modified files in the output"),
457 OPT_BOOLEAN('o', "others", &show_others,
458 "show other files in the output"),
459 OPT_BIT('i', "ignored", &dir.flags,
460 "show ignored files in the output",
461 DIR_SHOW_IGNORED),
462 OPT_BOOLEAN('s', "stage", &show_stage,
463 "show staged contents' object name in the output"),
464 OPT_BOOLEAN('k', "killed", &show_killed,
465 "show files on the filesystem that need to be removed"),
466 OPT_BIT(0, "directory", &dir.flags,
467 "show 'other' directories' name only",
468 DIR_SHOW_OTHER_DIRECTORIES),
469 OPT_NEGBIT(0, "empty-directory", &dir.flags,
470 "don't show empty directories",
471 DIR_HIDE_EMPTY_DIRECTORIES),
472 OPT_BOOLEAN('u', "unmerged", &show_unmerged,
473 "show unmerged files in the output"),
474 OPT_BOOLEAN(0, "resolve-undo", &show_resolve_undo,
475 "show resolve-undo information"),
476 { OPTION_CALLBACK, 'x', "exclude", &dir.exclude_list[EXC_CMDL], "pattern",
477 "skip files matching pattern",
478 0, option_parse_exclude },
479 { OPTION_CALLBACK, 'X', "exclude-from", &dir, "file",
480 "exclude patterns are read from <file>",
481 0, option_parse_exclude_from },
482 OPT_STRING(0, "exclude-per-directory", &dir.exclude_per_dir, "file",
483 "read additional per-directory exclude patterns in <file>"),
484 { OPTION_CALLBACK, 0, "exclude-standard", &dir, NULL,
485 "add the standard git exclusions",
486 PARSE_OPT_NOARG, option_parse_exclude_standard },
487 { OPTION_SET_INT, 0, "full-name", &prefix_len, NULL,
488 "make the output relative to the project top directory",
489 PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL },
490 OPT_BOOLEAN(0, "error-unmatch", &error_unmatch,
491 "if any <file> is not in the index, treat this as an error"),
492 OPT_STRING(0, "with-tree", &with_tree, "tree-ish",
493 "pretend that paths removed since <tree-ish> are still present"),
494 OPT__ABBREV(&abbrev),
495 OPT_BOOLEAN(0, "debug", &debug_mode, "show debugging data"),
496 OPT_END()
497 };
498 if (argc == 2 && !strcmp(argv[1], "-h"))
500 usage_with_options(ls_files_usage, builtin_ls_files_options);
501 memset(&dir, 0, sizeof(dir));
503 prefix = cmd_prefix;
504 if (prefix)
505 prefix_len = strlen(prefix);
506 git_config(git_default_config, NULL);
507 if (read_cache() < 0)
509 die("index file corrupt");
510 argc = parse_options(argc, argv, prefix, builtin_ls_files_options,
512 ls_files_usage, 0);
513 if (show_tag || show_valid_bit) {
514 tag_cached = "H ";
515 tag_unmerged = "M ";
516 tag_removed = "R ";
517 tag_modified = "C ";
518 tag_other = "? ";
519 tag_killed = "K ";
520 tag_skip_worktree = "S ";
521 tag_resolve_undo = "U ";
522 }
523 if (show_modified || show_others || show_deleted || (dir.flags & DIR_SHOW_IGNORED) || show_killed)
524 require_work_tree = 1;
525 if (show_unmerged)
526 /*
527 * There's no point in showing unmerged unless
528 * you also show the stage information.
529 */
530 show_stage = 1;
531 if (dir.exclude_per_dir)
532 exc_given = 1;
533 if (require_work_tree && !is_inside_work_tree())
535 setup_work_tree();
536 pathspec = get_pathspec(prefix, argv);
538 /* be nice with submodule paths ending in a slash */
540 if (pathspec)
541 strip_trailing_slash_from_submodules();
542 /* Find common prefix for all pathspec's */
544 max_prefix = pathspec_prefix(prefix, pathspec);
545 max_prefix_len = max_prefix ? strlen(max_prefix) : 0;
546 /* Treat unmatching pathspec elements as errors */
548 if (pathspec && error_unmatch) {
549 int num;
550 for (num = 0; pathspec[num]; num++)
551 ;
552 ps_matched = xcalloc(1, num);
553 }
554 if ((dir.flags & DIR_SHOW_IGNORED) && !exc_given)
556 die("ls-files --ignored needs some exclude pattern");
557 /* With no flags, we default to showing the cached files */
559 if (!(show_stage | show_deleted | show_others | show_unmerged |
560 show_killed | show_modified | show_resolve_undo))
561 show_cached = 1;
562 if (max_prefix)
564 prune_cache(max_prefix);
565 if (with_tree) {
566 /*
567 * Basic sanity check; show-stages and show-unmerged
568 * would not make any sense with this option.
569 */
570 if (show_stage || show_unmerged)
571 die("ls-files --with-tree is incompatible with -s or -u");
572 overlay_tree_on_cache(with_tree, max_prefix);
573 }
574 show_files(&dir);
575 if (show_resolve_undo)
576 show_ru_info();
577 if (ps_matched) {
579 int bad;
580 bad = report_path_error(ps_matched, pathspec, prefix_len);
581 if (bad)
582 fprintf(stderr, "Did you forget to 'git add'?\n");
583 return bad ? 1 : 0;
585 }
586 return 0;
588}