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
13 static int show_deleted = 0;
14 static int show_cached = 0;
15 static int show_others = 0;
16 static int show_ignored = 0;
17 static int show_stage = 0;
18 static int show_unmerged = 0;
19 static int show_killed = 0;
20 static int line_terminator = '\n';
22 static int prefix_len = 0, prefix_offset = 0;
23 static const char *prefix = NULL;
24 static const char *glob = NULL;
26 static const char *tag_cached = "";
27 static const char *tag_unmerged = "";
28 static const char *tag_removed = "";
29 static const char *tag_other = "";
30 static const char *tag_killed = "";
32 static char *exclude_per_dir = NULL;
34 /* We maintain three exclude pattern lists:
35 * EXC_CMDL lists patterns explicitly given on the command line.
36 * EXC_DIRS lists patterns obtained from per-directory ignore files.
37 * EXC_FILE lists patterns from fallback ignore files.
42 static struct exclude_list {
52 static void add_exclude(const char *string, const char *base,
53 int baselen, struct exclude_list *which)
55 struct exclude *x = xmalloc(sizeof (*x));
60 if (which->nr == which->alloc) {
61 which->alloc = alloc_nr(which->alloc);
62 which->excludes = realloc(which->excludes,
63 which->alloc * sizeof(x));
65 which->excludes[which->nr++] = x;
68 static int add_excludes_from_file_1(const char *fname,
71 struct exclude_list *which)
77 fd = open(fname, O_RDONLY);
80 size = lseek(fd, 0, SEEK_END);
83 lseek(fd, 0, SEEK_SET);
89 if (read(fd, buf, size) != size)
94 for (i = 0; i < size; i++) {
96 if (entry != buf + i && entry[0] != '#') {
98 add_exclude(entry, base, baselen, which);
111 static void add_excludes_from_file(const char *fname)
113 if (add_excludes_from_file_1(fname, "", 0,
114 &exclude_list[EXC_FILE]) < 0)
115 die("cannot use %s as an exclude file", fname);
118 static int push_exclude_per_directory(const char *base, int baselen)
120 char exclude_file[PATH_MAX];
121 struct exclude_list *el = &exclude_list[EXC_DIRS];
122 int current_nr = el->nr;
124 if (exclude_per_dir) {
125 memcpy(exclude_file, base, baselen);
126 strcpy(exclude_file + baselen, exclude_per_dir);
127 add_excludes_from_file_1(exclude_file, base, baselen, el);
132 static void pop_exclude_per_directory(int stk)
134 struct exclude_list *el = &exclude_list[EXC_DIRS];
137 free(el->excludes[--el->nr]);
140 /* Scan the list and let the last match determines the fate.
141 * Return 1 for exclude, 0 for include and -1 for undecided.
143 static int excluded_1(const char *pathname,
145 struct exclude_list *el)
150 for (i = el->nr - 1; 0 <= i; i--) {
151 struct exclude *x = el->excludes[i];
152 const char *exclude = x->pattern;
155 if (*exclude == '!') {
160 if (!strchr(exclude, '/')) {
162 const char *basename = strrchr(pathname, '/');
163 basename = (basename) ? basename+1 : pathname;
164 if (fnmatch(exclude, basename, 0) == 0)
168 /* match with FNM_PATHNAME:
169 * exclude has base (baselen long) inplicitly
172 int baselen = x->baselen;
176 if (pathlen < baselen ||
177 (baselen && pathname[baselen-1] != '/') ||
178 strncmp(pathname, x->base, baselen))
181 if (fnmatch(exclude, pathname+baselen,
187 return -1; /* undecided */
190 static int excluded(const char *pathname)
192 int pathlen = strlen(pathname);
195 for (st = EXC_CMDL; st <= EXC_FILE; st++) {
196 switch (excluded_1(pathname, pathlen, &exclude_list[st])) {
211 static struct nond_on_fs **dir;
213 static int dir_alloc;
215 static void add_name(const char *pathname, int len)
217 struct nond_on_fs *ent;
219 if (cache_name_pos(pathname, len) >= 0)
222 if (nr_dir == dir_alloc) {
223 dir_alloc = alloc_nr(dir_alloc);
224 dir = xrealloc(dir, dir_alloc*sizeof(ent));
226 ent = xmalloc(sizeof(*ent) + len + 1);
228 memcpy(ent->name, pathname, len);
234 * Read a directory tree. We currently ignore anything but
235 * directories, regular files and symlinks. That's because git
236 * doesn't handle them at all yet. Maybe that will change some
239 * Also, we ignore the name ".git" (even if it is not a directory).
240 * That likely will not change.
242 static void read_directory(const char *path, const char *base, int baselen)
244 DIR *dir = opendir(path);
249 char fullname[MAXPATHLEN + 1];
250 memcpy(fullname, base, baselen);
252 exclude_stk = push_exclude_per_directory(base, baselen);
254 while ((de = readdir(dir)) != NULL) {
257 if ((de->d_name[0] == '.') &&
258 (de->d_name[1] == 0 ||
259 !strcmp(de->d_name + 1, ".") ||
260 !strcmp(de->d_name + 1, "git")))
262 len = strlen(de->d_name);
263 memcpy(fullname + baselen, de->d_name, len+1);
264 if (excluded(fullname) != show_ignored)
272 if (lstat(fullname, &st))
274 if (S_ISREG(st.st_mode) || S_ISLNK(st.st_mode))
276 if (!S_ISDIR(st.st_mode))
280 memcpy(fullname + baselen + len, "/", 2);
281 read_directory(fullname, fullname,
288 add_name(fullname, baselen + len);
292 pop_exclude_per_directory(exclude_stk);
296 static int cmp_name(const void *p1, const void *p2)
298 const struct nond_on_fs *e1 = *(const struct nond_on_fs **)p1;
299 const struct nond_on_fs *e2 = *(const struct nond_on_fs **)p2;
301 return cache_name_compare(e1->name, e1->len,
305 static void show_dir_entry(const char *tag, struct nond_on_fs *ent)
307 int len = prefix_len;
308 int offset = prefix_offset;
311 die("git-ls-files: internal error - directory entry not superset of prefix");
313 if (glob && fnmatch(glob, ent->name + len, 0))
316 printf("%s%s%c", tag, ent->name + offset, line_terminator);
319 static void show_killed_files(void)
322 for (i = 0; i < nr_dir; i++) {
323 struct nond_on_fs *ent = dir[i];
325 int pos, len, killed = 0;
327 for (cp = ent->name; cp - ent->name < ent->len; cp = sp + 1) {
328 sp = strchr(cp, '/');
330 /* If ent->name is prefix of an entry in the
331 * cache, it will be killed.
333 pos = cache_name_pos(ent->name, ent->len);
335 die("bug in show-killed-files");
337 while (pos < active_nr &&
338 ce_stage(active_cache[pos]))
339 pos++; /* skip unmerged */
340 if (active_nr <= pos)
342 /* pos points at a name immediately after
343 * ent->name in the cache. Does it expect
344 * ent->name to be a directory?
346 len = ce_namelen(active_cache[pos]);
347 if ((ent->len < len) &&
348 !strncmp(active_cache[pos]->name,
349 ent->name, ent->len) &&
350 active_cache[pos]->name[ent->len] == '/')
354 if (0 <= cache_name_pos(ent->name, sp - ent->name)) {
355 /* If any of the leading directories in
356 * ent->name is registered in the cache,
357 * ent->name will be killed.
364 show_dir_entry(tag_killed, dir[i]);
368 static void show_ce_entry(const char *tag, struct cache_entry *ce)
370 int len = prefix_len;
371 int offset = prefix_offset;
373 if (len >= ce_namelen(ce))
374 die("git-ls-files: internal error - cache entry not superset of prefix");
376 if (glob && fnmatch(glob, ce->name + len, 0))
380 printf("%s%s%c", tag, ce->name + offset, line_terminator);
382 printf("%s%06o %s %d\t%s%c",
385 sha1_to_hex(ce->sha1),
387 ce->name + offset, line_terminator);
390 static void show_files(void)
394 /* For cached/deleted files we don't need to even do the readdir */
395 if (show_others || show_killed) {
396 const char *path = ".", *base = "";
397 int baselen = prefix_len;
400 path = base = prefix;
401 read_directory(path, base, baselen);
402 qsort(dir, nr_dir, sizeof(struct nond_on_fs *), cmp_name);
404 for (i = 0; i < nr_dir; i++)
405 show_dir_entry(tag_other, dir[i]);
409 if (show_cached | show_stage) {
410 for (i = 0; i < active_nr; i++) {
411 struct cache_entry *ce = active_cache[i];
412 if (excluded(ce->name) != show_ignored)
414 if (show_unmerged && !ce_stage(ce))
416 show_ce_entry(ce_stage(ce) ? tag_unmerged : tag_cached, ce);
420 for (i = 0; i < active_nr; i++) {
421 struct cache_entry *ce = active_cache[i];
423 if (excluded(ce->name) != show_ignored)
425 if (!lstat(ce->name, &st))
427 show_ce_entry(tag_removed, ce);
433 * Prune the index to only contain stuff starting with "prefix"
435 static void prune_cache(void)
437 int pos = cache_name_pos(prefix, prefix_len);
438 unsigned int first, last;
446 while (last > first) {
447 int next = (last + first) >> 1;
448 struct cache_entry *ce = active_cache[next];
449 if (!strncmp(ce->name, prefix, prefix_len)) {
459 * If the glob starts with a subdirectory, append it to
460 * the prefix instead, for more efficient operation.
462 * But we do not update the "prefix_offset", which tells
463 * how much of the name to ignore at printout.
465 static void extend_prefix(void)
467 const char *p, *slash;
472 while ((c = *p++) != '\0') {
479 int len = slash - glob;
480 char *newprefix = xmalloc(len + prefix_len + 1);
481 memcpy(newprefix, prefix, prefix_len);
482 memcpy(newprefix + prefix_len, glob, len);
484 newprefix[prefix_len] = 0;
486 glob = *slash ? slash : NULL;
490 static const char ls_files_usage[] =
491 "git-ls-files [-z] [-t] (--[cached|deleted|others|stage|unmerged|killed])* "
492 "[ --ignored ] [--exclude=<pattern>] [--exclude-from=<file>] "
493 "[ --exclude-per-directory=<filename> ]";
495 int main(int argc, char **argv)
500 prefix = setup_git_directory();
502 prefix_offset = prefix_len = strlen(prefix);
504 for (i = 1; i < argc; i++) {
507 if (!strcmp(arg, "-z")) {
511 if (!strcmp(arg, "-t")) {
519 if (!strcmp(arg, "-c") || !strcmp(arg, "--cached")) {
523 if (!strcmp(arg, "-d") || !strcmp(arg, "--deleted")) {
527 if (!strcmp(arg, "-o") || !strcmp(arg, "--others")) {
531 if (!strcmp(arg, "-i") || !strcmp(arg, "--ignored")) {
535 if (!strcmp(arg, "-s") || !strcmp(arg, "--stage")) {
539 if (!strcmp(arg, "-k") || !strcmp(arg, "--killed")) {
543 if (!strcmp(arg, "-u") || !strcmp(arg, "--unmerged")) {
544 /* There's no point in showing unmerged unless
545 * you also show the stage information.
551 if (!strcmp(arg, "-x") && i+1 < argc) {
553 add_exclude(argv[++i], "", 0, &exclude_list[EXC_CMDL]);
556 if (!strncmp(arg, "--exclude=", 10)) {
558 add_exclude(arg+10, "", 0, &exclude_list[EXC_CMDL]);
561 if (!strcmp(arg, "-X") && i+1 < argc) {
563 add_excludes_from_file(argv[++i]);
566 if (!strncmp(arg, "--exclude-from=", 15)) {
568 add_excludes_from_file(arg+15);
571 if (!strncmp(arg, "--exclude-per-directory=", 24)) {
573 exclude_per_dir = arg + 24;
576 if (!strcmp(arg, "--full-name")) {
580 if (glob || *arg == '-')
581 usage(ls_files_usage);
588 if (show_ignored && !exc_given) {
589 fprintf(stderr, "%s: --ignored needs some exclude pattern\n",
594 /* With no flags, we default to showing the cached files */
595 if (!(show_stage | show_deleted | show_others | show_unmerged | show_killed))