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.
6 * Copyright (C) Linus Torvalds, 2005
15 static int abbrev = 0;
16 static int show_deleted = 0;
17 static int show_cached = 0;
18 static int show_others = 0;
19 static int show_ignored = 0;
20 static int show_stage = 0;
21 static int show_unmerged = 0;
22 static int show_modified = 0;
23 static int show_killed = 0;
24 static int show_other_directories = 0;
25 static int hide_empty_directories = 0;
26 static int show_valid_bit = 0;
27 static int line_terminator = '\n';
29 static int prefix_len = 0, prefix_offset = 0;
30 static const char *prefix = NULL;
31 static const char **pathspec = NULL;
32 static int error_unmatch = 0;
33 static char *ps_matched = NULL;
35 static const char *tag_cached = "";
36 static const char *tag_unmerged = "";
37 static const char *tag_removed = "";
38 static const char *tag_other = "";
39 static const char *tag_killed = "";
40 static const char *tag_modified = "";
42 static const char *exclude_per_dir = NULL;
44 /* We maintain three exclude pattern lists:
45 * EXC_CMDL lists patterns explicitly given on the command line.
46 * EXC_DIRS lists patterns obtained from per-directory ignore files.
47 * EXC_FILE lists patterns from fallback ignore files.
52 static struct exclude_list {
62 static void add_exclude(const char *string, const char *base,
63 int baselen, struct exclude_list *which)
65 struct exclude *x = xmalloc(sizeof (*x));
70 if (which->nr == which->alloc) {
71 which->alloc = alloc_nr(which->alloc);
72 which->excludes = realloc(which->excludes,
73 which->alloc * sizeof(x));
75 which->excludes[which->nr++] = x;
78 static int add_excludes_from_file_1(const char *fname,
81 struct exclude_list *which)
87 fd = open(fname, O_RDONLY);
90 size = lseek(fd, 0, SEEK_END);
93 lseek(fd, 0, SEEK_SET);
98 buf = xmalloc(size+1);
99 if (read(fd, buf, size) != size)
105 for (i = 0; i < size; i++) {
106 if (buf[i] == '\n') {
107 if (entry != buf + i && entry[0] != '#') {
108 buf[i - (i && buf[i-1] == '\r')] = 0;
109 add_exclude(entry, base, baselen, which);
122 static void add_excludes_from_file(const char *fname)
124 if (add_excludes_from_file_1(fname, "", 0,
125 &exclude_list[EXC_FILE]) < 0)
126 die("cannot use %s as an exclude file", fname);
129 static int push_exclude_per_directory(const char *base, int baselen)
131 char exclude_file[PATH_MAX];
132 struct exclude_list *el = &exclude_list[EXC_DIRS];
133 int current_nr = el->nr;
135 if (exclude_per_dir) {
136 memcpy(exclude_file, base, baselen);
137 strcpy(exclude_file + baselen, exclude_per_dir);
138 add_excludes_from_file_1(exclude_file, base, baselen, el);
143 static void pop_exclude_per_directory(int stk)
145 struct exclude_list *el = &exclude_list[EXC_DIRS];
148 free(el->excludes[--el->nr]);
151 /* Scan the list and let the last match determines the fate.
152 * Return 1 for exclude, 0 for include and -1 for undecided.
154 static int excluded_1(const char *pathname,
156 struct exclude_list *el)
161 for (i = el->nr - 1; 0 <= i; i--) {
162 struct exclude *x = el->excludes[i];
163 const char *exclude = x->pattern;
166 if (*exclude == '!') {
171 if (!strchr(exclude, '/')) {
173 const char *basename = strrchr(pathname, '/');
174 basename = (basename) ? basename+1 : pathname;
175 if (fnmatch(exclude, basename, 0) == 0)
179 /* match with FNM_PATHNAME:
180 * exclude has base (baselen long) implicitly
183 int baselen = x->baselen;
187 if (pathlen < baselen ||
188 (baselen && pathname[baselen-1] != '/') ||
189 strncmp(pathname, x->base, baselen))
192 if (fnmatch(exclude, pathname+baselen,
198 return -1; /* undecided */
201 static int excluded(const char *pathname)
203 int pathlen = strlen(pathname);
206 for (st = EXC_CMDL; st <= EXC_FILE; st++) {
207 switch (excluded_1(pathname, pathlen, &exclude_list[st])) {
219 char name[FLEX_ARRAY]; /* more */
222 static struct nond_on_fs **dir;
224 static int dir_alloc;
226 static void add_name(const char *pathname, int len)
228 struct nond_on_fs *ent;
230 if (cache_name_pos(pathname, len) >= 0)
233 if (nr_dir == dir_alloc) {
234 dir_alloc = alloc_nr(dir_alloc);
235 dir = xrealloc(dir, dir_alloc*sizeof(ent));
237 ent = xmalloc(sizeof(*ent) + len + 1);
239 memcpy(ent->name, pathname, len);
244 static int dir_exists(const char *dirname, int len)
246 int pos = cache_name_pos(dirname, len);
250 if (pos >= active_nr) /* can't */
252 return !strncmp(active_cache[pos]->name, dirname, len);
256 * Read a directory tree. We currently ignore anything but
257 * directories, regular files and symlinks. That's because git
258 * doesn't handle them at all yet. Maybe that will change some
261 * Also, we ignore the name ".git" (even if it is not a directory).
262 * That likely will not change.
264 static int read_directory(const char *path, const char *base, int baselen)
266 DIR *fdir = opendir(path);
272 char fullname[MAXPATHLEN + 1];
273 memcpy(fullname, base, baselen);
275 exclude_stk = push_exclude_per_directory(base, baselen);
277 while ((de = readdir(fdir)) != NULL) {
280 if ((de->d_name[0] == '.') &&
281 (de->d_name[1] == 0 ||
282 !strcmp(de->d_name + 1, ".") ||
283 !strcmp(de->d_name + 1, "git")))
285 len = strlen(de->d_name);
286 memcpy(fullname + baselen, de->d_name, len+1);
287 if (excluded(fullname) != show_ignored) {
288 if (!show_ignored || DTYPE(de) != DT_DIR) {
295 int subdir, rewind_base;
299 if (lstat(fullname, &st))
301 if (S_ISREG(st.st_mode) || S_ISLNK(st.st_mode))
303 if (!S_ISDIR(st.st_mode))
307 memcpy(fullname + baselen + len, "/", 2);
309 rewind_base = nr_dir;
310 subdir = read_directory(fullname, fullname,
312 if (show_other_directories &&
313 (subdir || !hide_empty_directories) &&
314 !dir_exists(fullname, baselen + len)) {
315 // Rewind the read subdirectory
316 while (nr_dir > rewind_base)
326 add_name(fullname, baselen + len);
331 pop_exclude_per_directory(exclude_stk);
337 static int cmp_name(const void *p1, const void *p2)
339 const struct nond_on_fs *e1 = *(const struct nond_on_fs **)p1;
340 const struct nond_on_fs *e2 = *(const struct nond_on_fs **)p2;
342 return cache_name_compare(e1->name, e1->len,
347 * Match a pathspec against a filename. The first "len" characters
348 * are the common prefix
350 static int match(const char **spec, char *ps_matched,
351 const char *filename, int len)
355 while ((m = *spec++) != NULL) {
356 int matchlen = strlen(m + len);
360 if (!strncmp(m + len, filename + len, matchlen)) {
361 if (m[len + matchlen - 1] == '/')
363 switch (filename[len + matchlen]) {
368 if (!fnmatch(m + len, filename + len, 0))
381 static void show_dir_entry(const char *tag, struct nond_on_fs *ent)
383 int len = prefix_len;
384 int offset = prefix_offset;
387 die("git-ls-files: internal error - directory entry not superset of prefix");
389 if (pathspec && !match(pathspec, ps_matched, ent->name, len))
393 write_name_quoted("", 0, ent->name + offset, line_terminator, stdout);
394 putchar(line_terminator);
397 static void show_other_files(void)
400 for (i = 0; i < nr_dir; i++) {
401 /* We should not have a matching entry, but we
402 * may have an unmerged entry for this path.
404 struct nond_on_fs *ent = dir[i];
405 int pos = cache_name_pos(ent->name, ent->len);
406 struct cache_entry *ce;
408 die("bug in show-other-files");
410 if (pos < active_nr) {
411 ce = active_cache[pos];
412 if (ce_namelen(ce) == ent->len &&
413 !memcmp(ce->name, ent->name, ent->len))
414 continue; /* Yup, this one exists unmerged */
416 show_dir_entry(tag_other, ent);
420 static void show_killed_files(void)
423 for (i = 0; i < nr_dir; i++) {
424 struct nond_on_fs *ent = dir[i];
426 int pos, len, killed = 0;
428 for (cp = ent->name; cp - ent->name < ent->len; cp = sp + 1) {
429 sp = strchr(cp, '/');
431 /* If ent->name is prefix of an entry in the
432 * cache, it will be killed.
434 pos = cache_name_pos(ent->name, ent->len);
436 die("bug in show-killed-files");
438 while (pos < active_nr &&
439 ce_stage(active_cache[pos]))
440 pos++; /* skip unmerged */
441 if (active_nr <= pos)
443 /* pos points at a name immediately after
444 * ent->name in the cache. Does it expect
445 * ent->name to be a directory?
447 len = ce_namelen(active_cache[pos]);
448 if ((ent->len < len) &&
449 !strncmp(active_cache[pos]->name,
450 ent->name, ent->len) &&
451 active_cache[pos]->name[ent->len] == '/')
455 if (0 <= cache_name_pos(ent->name, sp - ent->name)) {
456 /* If any of the leading directories in
457 * ent->name is registered in the cache,
458 * ent->name will be killed.
465 show_dir_entry(tag_killed, dir[i]);
469 static void show_ce_entry(const char *tag, struct cache_entry *ce)
471 int len = prefix_len;
472 int offset = prefix_offset;
474 if (len >= ce_namelen(ce))
475 die("git-ls-files: internal error - cache entry not superset of prefix");
477 if (pathspec && !match(pathspec, ps_matched, ce->name, len))
480 if (tag && *tag && show_valid_bit &&
481 (ce->ce_flags & htons(CE_VALID))) {
482 static char alttag[4];
483 memcpy(alttag, tag, 3);
485 alttag[0] = tolower(tag[0]);
486 else if (tag[0] == '?')
499 write_name_quoted("", 0, ce->name + offset,
500 line_terminator, stdout);
501 putchar(line_terminator);
504 printf("%s%06o %s %d\t",
507 abbrev ? find_unique_abbrev(ce->sha1,abbrev)
508 : sha1_to_hex(ce->sha1),
510 write_name_quoted("", 0, ce->name + offset,
511 line_terminator, stdout);
512 putchar(line_terminator);
516 static void show_files(void)
520 /* For cached/deleted files we don't need to even do the readdir */
521 if (show_others || show_killed) {
522 const char *path = ".", *base = "";
523 int baselen = prefix_len;
526 path = base = prefix;
527 if (exclude_per_dir) {
528 char *p, *pp = xmalloc(baselen+1);
529 memcpy(pp, prefix, baselen+1);
534 push_exclude_per_directory(pp, p-pp);
547 read_directory(path, base, baselen);
548 qsort(dir, nr_dir, sizeof(struct nond_on_fs *), cmp_name);
554 if (show_cached | show_stage) {
555 for (i = 0; i < active_nr; i++) {
556 struct cache_entry *ce = active_cache[i];
557 if (excluded(ce->name) != show_ignored)
559 if (show_unmerged && !ce_stage(ce))
561 show_ce_entry(ce_stage(ce) ? tag_unmerged : tag_cached, ce);
564 if (show_deleted | show_modified) {
565 for (i = 0; i < active_nr; i++) {
566 struct cache_entry *ce = active_cache[i];
569 if (excluded(ce->name) != show_ignored)
571 err = lstat(ce->name, &st);
572 if (show_deleted && err)
573 show_ce_entry(tag_removed, ce);
574 if (show_modified && ce_modified(ce, &st, 0))
575 show_ce_entry(tag_modified, ce);
581 * Prune the index to only contain stuff starting with "prefix"
583 static void prune_cache(void)
585 int pos = cache_name_pos(prefix, prefix_len);
586 unsigned int first, last;
594 while (last > first) {
595 int next = (last + first) >> 1;
596 struct cache_entry *ce = active_cache[next];
597 if (!strncmp(ce->name, prefix, prefix_len)) {
606 static void verify_pathspec(void)
608 const char **p, *n, *prev;
614 for (p = pathspec; (n = *p) != NULL; p++) {
616 for (i = 0; i < max; i++) {
618 if (prev && prev[i] != c)
620 if (!c || c == '*' || c == '?')
633 if (prefix_offset > max || memcmp(prev, prefix, prefix_offset))
634 die("git-ls-files: cannot generate relative filenames containing '..'");
639 real_prefix = xmalloc(max + 1);
640 memcpy(real_prefix, prev, max);
641 real_prefix[max] = 0;
643 prefix = real_prefix;
646 static const char ls_files_usage[] =
647 "git-ls-files [-z] [-t] [-v] (--[cached|deleted|others|stage|unmerged|killed|modified])* "
648 "[ --ignored ] [--exclude=<pattern>] [--exclude-from=<file>] "
649 "[ --exclude-per-directory=<filename> ] [--full-name] [--abbrev] "
652 int cmd_ls_files(int argc, const char **argv, char** envp)
657 prefix = setup_git_directory();
659 prefix_offset = strlen(prefix);
660 git_config(git_default_config);
662 for (i = 1; i < argc; i++) {
663 const char *arg = argv[i];
665 if (!strcmp(arg, "--")) {
669 if (!strcmp(arg, "-z")) {
673 if (!strcmp(arg, "-t") || !strcmp(arg, "-v")) {
684 if (!strcmp(arg, "-c") || !strcmp(arg, "--cached")) {
688 if (!strcmp(arg, "-d") || !strcmp(arg, "--deleted")) {
692 if (!strcmp(arg, "-m") || !strcmp(arg, "--modified")) {
696 if (!strcmp(arg, "-o") || !strcmp(arg, "--others")) {
700 if (!strcmp(arg, "-i") || !strcmp(arg, "--ignored")) {
704 if (!strcmp(arg, "-s") || !strcmp(arg, "--stage")) {
708 if (!strcmp(arg, "-k") || !strcmp(arg, "--killed")) {
712 if (!strcmp(arg, "--directory")) {
713 show_other_directories = 1;
716 if (!strcmp(arg, "--no-empty-directory")) {
717 hide_empty_directories = 1;
720 if (!strcmp(arg, "-u") || !strcmp(arg, "--unmerged")) {
721 /* There's no point in showing unmerged unless
722 * you also show the stage information.
728 if (!strcmp(arg, "-x") && i+1 < argc) {
730 add_exclude(argv[++i], "", 0, &exclude_list[EXC_CMDL]);
733 if (!strncmp(arg, "--exclude=", 10)) {
735 add_exclude(arg+10, "", 0, &exclude_list[EXC_CMDL]);
738 if (!strcmp(arg, "-X") && i+1 < argc) {
740 add_excludes_from_file(argv[++i]);
743 if (!strncmp(arg, "--exclude-from=", 15)) {
745 add_excludes_from_file(arg+15);
748 if (!strncmp(arg, "--exclude-per-directory=", 24)) {
750 exclude_per_dir = arg + 24;
753 if (!strcmp(arg, "--full-name")) {
757 if (!strcmp(arg, "--error-unmatch")) {
761 if (!strncmp(arg, "--abbrev=", 9)) {
762 abbrev = strtoul(arg+9, NULL, 10);
763 if (abbrev && abbrev < MINIMUM_ABBREV)
764 abbrev = MINIMUM_ABBREV;
765 else if (abbrev > 40)
769 if (!strcmp(arg, "--abbrev")) {
770 abbrev = DEFAULT_ABBREV;
774 usage(ls_files_usage);
778 pathspec = get_pathspec(prefix, argv + i);
780 /* Verify that the pathspec matches the prefix */
784 /* Treat unmatching pathspec elements as errors */
785 if (pathspec && error_unmatch) {
787 for (num = 0; pathspec[num]; num++)
789 ps_matched = xcalloc(1, num);
792 if (show_ignored && !exc_given) {
793 fprintf(stderr, "%s: --ignored needs some exclude pattern\n",
798 /* With no flags, we default to showing the cached files */
799 if (!(show_stage | show_deleted | show_others | show_unmerged |
800 show_killed | show_modified))
809 /* We need to make sure all pathspec matched otherwise
813 for (num = 0; pathspec[num]; num++) {
816 error("pathspec '%s' did not match any.",
817 pathspec[num] + prefix_offset);
820 return errors ? 1 : 0;