Merge branch 'maint'
[git/haiku.git] / builtin-ls-files.c
blobac89eb2f770d3b8dbc35ee2c24d9d6c82b8fb6fe
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.
6 * Copyright (C) Linus Torvalds, 2005
7 */
8 #include "cache.h"
9 #include "quote.h"
10 #include "dir.h"
11 #include "builtin.h"
13 static int abbrev;
14 static int show_deleted;
15 static int show_cached;
16 static int show_others;
17 static int show_stage;
18 static int show_unmerged;
19 static int show_modified;
20 static int show_killed;
21 static int show_valid_bit;
22 static int line_terminator = '\n';
24 static int prefix_len;
25 static int prefix_offset;
26 static const char **pathspec;
27 static int error_unmatch;
28 static char *ps_matched;
30 static const char *tag_cached = "";
31 static const char *tag_unmerged = "";
32 static const char *tag_removed = "";
33 static const char *tag_other = "";
34 static const char *tag_killed = "";
35 static const char *tag_modified = "";
39 * Match a pathspec against a filename. The first "len" characters
40 * are the common prefix
42 static int match(const char **spec, char *ps_matched,
43 const char *filename, int len)
45 const char *m;
47 while ((m = *spec++) != NULL) {
48 int matchlen = strlen(m + len);
50 if (!matchlen)
51 goto matched;
52 if (!strncmp(m + len, filename + len, matchlen)) {
53 if (m[len + matchlen - 1] == '/')
54 goto matched;
55 switch (filename[len + matchlen]) {
56 case '/': case '\0':
57 goto matched;
60 if (!fnmatch(m + len, filename + len, 0))
61 goto matched;
62 if (ps_matched)
63 ps_matched++;
64 continue;
65 matched:
66 if (ps_matched)
67 *ps_matched = 1;
68 return 1;
70 return 0;
73 static void show_dir_entry(const char *tag, struct dir_entry *ent)
75 int len = prefix_len;
76 int offset = prefix_offset;
78 if (len >= ent->len)
79 die("git-ls-files: internal error - directory entry not superset of prefix");
81 if (pathspec && !match(pathspec, ps_matched, ent->name, len))
82 return;
84 fputs(tag, stdout);
85 write_name_quoted("", 0, ent->name + offset, line_terminator, stdout);
86 putchar(line_terminator);
89 static void show_other_files(struct dir_struct *dir)
91 int i;
92 for (i = 0; i < dir->nr; i++) {
93 /* We should not have a matching entry, but we
94 * may have an unmerged entry for this path.
96 struct dir_entry *ent = dir->entries[i];
97 int pos = cache_name_pos(ent->name, ent->len);
98 struct cache_entry *ce;
99 if (0 <= pos)
100 die("bug in show-other-files");
101 pos = -pos - 1;
102 if (pos < active_nr) {
103 ce = active_cache[pos];
104 if (ce_namelen(ce) == ent->len &&
105 !memcmp(ce->name, ent->name, ent->len))
106 continue; /* Yup, this one exists unmerged */
108 show_dir_entry(tag_other, ent);
112 static void show_killed_files(struct dir_struct *dir)
114 int i;
115 for (i = 0; i < dir->nr; i++) {
116 struct dir_entry *ent = dir->entries[i];
117 char *cp, *sp;
118 int pos, len, killed = 0;
120 for (cp = ent->name; cp - ent->name < ent->len; cp = sp + 1) {
121 sp = strchr(cp, '/');
122 if (!sp) {
123 /* If ent->name is prefix of an entry in the
124 * cache, it will be killed.
126 pos = cache_name_pos(ent->name, ent->len);
127 if (0 <= pos)
128 die("bug in show-killed-files");
129 pos = -pos - 1;
130 while (pos < active_nr &&
131 ce_stage(active_cache[pos]))
132 pos++; /* skip unmerged */
133 if (active_nr <= pos)
134 break;
135 /* pos points at a name immediately after
136 * ent->name in the cache. Does it expect
137 * ent->name to be a directory?
139 len = ce_namelen(active_cache[pos]);
140 if ((ent->len < len) &&
141 !strncmp(active_cache[pos]->name,
142 ent->name, ent->len) &&
143 active_cache[pos]->name[ent->len] == '/')
144 killed = 1;
145 break;
147 if (0 <= cache_name_pos(ent->name, sp - ent->name)) {
148 /* If any of the leading directories in
149 * ent->name is registered in the cache,
150 * ent->name will be killed.
152 killed = 1;
153 break;
156 if (killed)
157 show_dir_entry(tag_killed, dir->entries[i]);
161 static void show_ce_entry(const char *tag, struct cache_entry *ce)
163 int len = prefix_len;
164 int offset = prefix_offset;
166 if (len >= ce_namelen(ce))
167 die("git-ls-files: internal error - cache entry not superset of prefix");
169 if (pathspec && !match(pathspec, ps_matched, ce->name, len))
170 return;
172 if (tag && *tag && show_valid_bit &&
173 (ce->ce_flags & htons(CE_VALID))) {
174 static char alttag[4];
175 memcpy(alttag, tag, 3);
176 if (isalpha(tag[0]))
177 alttag[0] = tolower(tag[0]);
178 else if (tag[0] == '?')
179 alttag[0] = '!';
180 else {
181 alttag[0] = 'v';
182 alttag[1] = tag[0];
183 alttag[2] = ' ';
184 alttag[3] = 0;
186 tag = alttag;
189 if (!show_stage) {
190 fputs(tag, stdout);
191 write_name_quoted("", 0, ce->name + offset,
192 line_terminator, stdout);
193 putchar(line_terminator);
195 else {
196 printf("%s%06o %s %d\t",
197 tag,
198 ntohl(ce->ce_mode),
199 abbrev ? find_unique_abbrev(ce->sha1,abbrev)
200 : sha1_to_hex(ce->sha1),
201 ce_stage(ce));
202 write_name_quoted("", 0, ce->name + offset,
203 line_terminator, stdout);
204 putchar(line_terminator);
208 static void show_files(struct dir_struct *dir, const char *prefix)
210 int i;
212 /* For cached/deleted files we don't need to even do the readdir */
213 if (show_others || show_killed) {
214 const char *path = ".", *base = "";
215 int baselen = prefix_len;
217 if (baselen)
218 path = base = prefix;
219 read_directory(dir, path, base, baselen);
220 if (show_others)
221 show_other_files(dir);
222 if (show_killed)
223 show_killed_files(dir);
225 if (show_cached | show_stage) {
226 for (i = 0; i < active_nr; i++) {
227 struct cache_entry *ce = active_cache[i];
228 if (excluded(dir, ce->name) != dir->show_ignored)
229 continue;
230 if (show_unmerged && !ce_stage(ce))
231 continue;
232 show_ce_entry(ce_stage(ce) ? tag_unmerged : tag_cached, ce);
235 if (show_deleted | show_modified) {
236 for (i = 0; i < active_nr; i++) {
237 struct cache_entry *ce = active_cache[i];
238 struct stat st;
239 int err;
240 if (excluded(dir, ce->name) != dir->show_ignored)
241 continue;
242 err = lstat(ce->name, &st);
243 if (show_deleted && err)
244 show_ce_entry(tag_removed, ce);
245 if (show_modified && ce_modified(ce, &st, 0))
246 show_ce_entry(tag_modified, ce);
252 * Prune the index to only contain stuff starting with "prefix"
254 static void prune_cache(const char *prefix)
256 int pos = cache_name_pos(prefix, prefix_len);
257 unsigned int first, last;
259 if (pos < 0)
260 pos = -pos-1;
261 active_cache += pos;
262 active_nr -= pos;
263 first = 0;
264 last = active_nr;
265 while (last > first) {
266 int next = (last + first) >> 1;
267 struct cache_entry *ce = active_cache[next];
268 if (!strncmp(ce->name, prefix, prefix_len)) {
269 first = next+1;
270 continue;
272 last = next;
274 active_nr = last;
277 static const char *verify_pathspec(const char *prefix)
279 const char **p, *n, *prev;
280 char *real_prefix;
281 unsigned long max;
283 prev = NULL;
284 max = PATH_MAX;
285 for (p = pathspec; (n = *p) != NULL; p++) {
286 int i, len = 0;
287 for (i = 0; i < max; i++) {
288 char c = n[i];
289 if (prev && prev[i] != c)
290 break;
291 if (!c || c == '*' || c == '?')
292 break;
293 if (c == '/')
294 len = i+1;
296 prev = n;
297 if (len < max) {
298 max = len;
299 if (!max)
300 break;
304 if (prefix_offset > max || memcmp(prev, prefix, prefix_offset))
305 die("git-ls-files: cannot generate relative filenames containing '..'");
307 real_prefix = NULL;
308 prefix_len = max;
309 if (max) {
310 real_prefix = xmalloc(max + 1);
311 memcpy(real_prefix, prev, max);
312 real_prefix[max] = 0;
314 return real_prefix;
317 static const char ls_files_usage[] =
318 "git-ls-files [-z] [-t] [-v] (--[cached|deleted|others|stage|unmerged|killed|modified])* "
319 "[ --ignored ] [--exclude=<pattern>] [--exclude-from=<file>] "
320 "[ --exclude-per-directory=<filename> ] [--full-name] [--abbrev] "
321 "[--] [<file>]*";
323 int cmd_ls_files(int argc, const char **argv, const char *prefix)
325 int i;
326 int exc_given = 0, require_work_tree = 0;
327 struct dir_struct dir;
329 memset(&dir, 0, sizeof(dir));
330 if (prefix)
331 prefix_offset = strlen(prefix);
332 git_config(git_default_config);
334 for (i = 1; i < argc; i++) {
335 const char *arg = argv[i];
337 if (!strcmp(arg, "--")) {
338 i++;
339 break;
341 if (!strcmp(arg, "-z")) {
342 line_terminator = 0;
343 continue;
345 if (!strcmp(arg, "-t") || !strcmp(arg, "-v")) {
346 tag_cached = "H ";
347 tag_unmerged = "M ";
348 tag_removed = "R ";
349 tag_modified = "C ";
350 tag_other = "? ";
351 tag_killed = "K ";
352 if (arg[1] == 'v')
353 show_valid_bit = 1;
354 continue;
356 if (!strcmp(arg, "-c") || !strcmp(arg, "--cached")) {
357 show_cached = 1;
358 continue;
360 if (!strcmp(arg, "-d") || !strcmp(arg, "--deleted")) {
361 show_deleted = 1;
362 continue;
364 if (!strcmp(arg, "-m") || !strcmp(arg, "--modified")) {
365 show_modified = 1;
366 require_work_tree = 1;
367 continue;
369 if (!strcmp(arg, "-o") || !strcmp(arg, "--others")) {
370 show_others = 1;
371 require_work_tree = 1;
372 continue;
374 if (!strcmp(arg, "-i") || !strcmp(arg, "--ignored")) {
375 dir.show_ignored = 1;
376 require_work_tree = 1;
377 continue;
379 if (!strcmp(arg, "-s") || !strcmp(arg, "--stage")) {
380 show_stage = 1;
381 continue;
383 if (!strcmp(arg, "-k") || !strcmp(arg, "--killed")) {
384 show_killed = 1;
385 require_work_tree = 1;
386 continue;
388 if (!strcmp(arg, "--directory")) {
389 dir.show_other_directories = 1;
390 continue;
392 if (!strcmp(arg, "--no-empty-directory")) {
393 dir.hide_empty_directories = 1;
394 continue;
396 if (!strcmp(arg, "-u") || !strcmp(arg, "--unmerged")) {
397 /* There's no point in showing unmerged unless
398 * you also show the stage information.
400 show_stage = 1;
401 show_unmerged = 1;
402 continue;
404 if (!strcmp(arg, "-x") && i+1 < argc) {
405 exc_given = 1;
406 add_exclude(argv[++i], "", 0, &dir.exclude_list[EXC_CMDL]);
407 continue;
409 if (!strncmp(arg, "--exclude=", 10)) {
410 exc_given = 1;
411 add_exclude(arg+10, "", 0, &dir.exclude_list[EXC_CMDL]);
412 continue;
414 if (!strcmp(arg, "-X") && i+1 < argc) {
415 exc_given = 1;
416 add_excludes_from_file(&dir, argv[++i]);
417 continue;
419 if (!strncmp(arg, "--exclude-from=", 15)) {
420 exc_given = 1;
421 add_excludes_from_file(&dir, arg+15);
422 continue;
424 if (!strncmp(arg, "--exclude-per-directory=", 24)) {
425 exc_given = 1;
426 dir.exclude_per_dir = arg + 24;
427 continue;
429 if (!strcmp(arg, "--full-name")) {
430 prefix_offset = 0;
431 continue;
433 if (!strcmp(arg, "--error-unmatch")) {
434 error_unmatch = 1;
435 continue;
437 if (!strncmp(arg, "--abbrev=", 9)) {
438 abbrev = strtoul(arg+9, NULL, 10);
439 if (abbrev && abbrev < MINIMUM_ABBREV)
440 abbrev = MINIMUM_ABBREV;
441 else if (abbrev > 40)
442 abbrev = 40;
443 continue;
445 if (!strcmp(arg, "--abbrev")) {
446 abbrev = DEFAULT_ABBREV;
447 continue;
449 if (*arg == '-')
450 usage(ls_files_usage);
451 break;
454 if (require_work_tree &&
455 (is_bare_repository() || is_inside_git_dir()))
456 die("This operation must be run in a work tree");
458 pathspec = get_pathspec(prefix, argv + i);
460 /* Verify that the pathspec matches the prefix */
461 if (pathspec)
462 prefix = verify_pathspec(prefix);
464 /* Treat unmatching pathspec elements as errors */
465 if (pathspec && error_unmatch) {
466 int num;
467 for (num = 0; pathspec[num]; num++)
469 ps_matched = xcalloc(1, num);
472 if (dir.show_ignored && !exc_given) {
473 fprintf(stderr, "%s: --ignored needs some exclude pattern\n",
474 argv[0]);
475 exit(1);
478 /* With no flags, we default to showing the cached files */
479 if (!(show_stage | show_deleted | show_others | show_unmerged |
480 show_killed | show_modified))
481 show_cached = 1;
483 read_cache();
484 if (prefix)
485 prune_cache(prefix);
486 show_files(&dir, prefix);
488 if (ps_matched) {
489 /* We need to make sure all pathspec matched otherwise
490 * it is an error.
492 int num, errors = 0;
493 for (num = 0; pathspec[num]; num++) {
494 if (ps_matched[num])
495 continue;
496 error("pathspec '%s' did not match any file(s) known to git.",
497 pathspec[num] + prefix_offset);
498 errors++;
501 if (errors)
502 fprintf(stderr, "Did you forget to 'git add'?\n");
504 return errors ? 1 : 0;
507 return 0;