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Commit | Line | Data |
---|---|---|
8bc9a0c7 LT |
1 | /* |
2 | * GIT - The information manager from hell | |
3 | * | |
4 | * Copyright (C) Linus Torvalds, 2005 | |
5 | */ | |
e83c5163 | 6 | #include "cache.h" |
973d6a20 | 7 | #include "quote.h" |
a6e5642f | 8 | #include "cache-tree.h" |
2bd452d3 | 9 | #include "tree-walk.h" |
fefe81c9 | 10 | #include "builtin.h" |
e011054b | 11 | #include "refs.h" |
e83c5163 | 12 | |
121481ab LT |
13 | /* |
14 | * Default to not allowing changes to the list of files. The | |
15 | * tool doesn't actually care, but this makes it harder to add | |
16 | * files to the revision control by mistake by doing something | |
f18d244a | 17 | * like "git update-index *" and suddenly having all the object |
121481ab LT |
18 | * files be revision controlled. |
19 | */ | |
caf4f582 JH |
20 | static int allow_add; |
21 | static int allow_remove; | |
22 | static int allow_replace; | |
caf4f582 | 23 | static int info_only; |
9b63f501 | 24 | static int force_remove; |
caf4f582 | 25 | static int verbose; |
96f1e58f | 26 | static int mark_valid_only; |
44a36913 | 27 | static int mark_skip_worktree_only; |
83b327ba NTND |
28 | #define MARK_FLAG 1 |
29 | #define UNMARK_FLAG 2 | |
5f73076c | 30 | |
28bea9e5 | 31 | __attribute__((format (printf, 1, 2))) |
caf4f582 JH |
32 | static void report(const char *fmt, ...) |
33 | { | |
34 | va_list vp; | |
35 | ||
36 | if (!verbose) | |
37 | return; | |
38 | ||
39 | va_start(vp, fmt); | |
40 | vprintf(fmt, vp); | |
41 | putchar('\n'); | |
42 | va_end(vp); | |
43 | } | |
44 | ||
83b327ba | 45 | static int mark_ce_flags(const char *path, int flag, int mark) |
5f73076c JH |
46 | { |
47 | int namelen = strlen(path); | |
48 | int pos = cache_name_pos(path, namelen); | |
49 | if (0 <= pos) { | |
83b327ba NTND |
50 | if (mark) |
51 | active_cache[pos]->ce_flags |= flag; | |
52 | else | |
53 | active_cache[pos]->ce_flags &= ~flag; | |
a6e5642f | 54 | cache_tree_invalidate_path(active_cache_tree, path); |
5f73076c JH |
55 | active_cache_changed = 1; |
56 | return 0; | |
57 | } | |
58 | return -1; | |
59 | } | |
60 | ||
e011054b | 61 | static int remove_one_path(const char *path) |
e83c5163 | 62 | { |
e011054b LT |
63 | if (!allow_remove) |
64 | return error("%s: does not exist and --remove not passed", path); | |
65 | if (remove_file_from_cache(path)) | |
66 | return error("%s: cannot remove from the index", path); | |
67 | return 0; | |
68 | } | |
a6e5642f | 69 | |
e011054b LT |
70 | /* |
71 | * Handle a path that couldn't be lstat'ed. It's either: | |
72 | * - missing file (ENOENT or ENOTDIR). That's ok if we're | |
73 | * supposed to be removing it and the removal actually | |
74 | * succeeds. | |
75 | * - permission error. That's never ok. | |
76 | */ | |
77 | static int process_lstat_error(const char *path, int err) | |
78 | { | |
79 | if (err == ENOENT || err == ENOTDIR) | |
80 | return remove_one_path(path); | |
81 | return error("lstat(\"%s\"): %s", path, strerror(errno)); | |
82 | } | |
a6e5642f | 83 | |
e011054b LT |
84 | static int add_one_path(struct cache_entry *old, const char *path, int len, struct stat *st) |
85 | { | |
22631473 LT |
86 | int option, size; |
87 | struct cache_entry *ce; | |
3e09cdfd | 88 | |
22631473 LT |
89 | /* Was the old index entry already up-to-date? */ |
90 | if (old && !ce_stage(old) && !ce_match_stat(old, st, 0)) | |
91 | return 0; | |
92 | ||
93 | size = cache_entry_size(len); | |
94 | ce = xcalloc(1, size); | |
e011054b | 95 | memcpy(ce->name, path, len); |
7a51ed66 | 96 | ce->ce_flags = len; |
e011054b LT |
97 | fill_stat_cache_info(ce, st); |
98 | ce->ce_mode = ce_mode_from_stat(old, st->st_mode); | |
ec1fcc16 | 99 | |
e011054b | 100 | if (index_path(ce->sha1, path, st, !info_only)) |
ec1fcc16 | 101 | return -1; |
192268c1 JH |
102 | option = allow_add ? ADD_CACHE_OK_TO_ADD : 0; |
103 | option |= allow_replace ? ADD_CACHE_OK_TO_REPLACE : 0; | |
34143b26 | 104 | if (add_cache_entry(ce, option)) |
e011054b | 105 | return error("%s: cannot add to the index - missing --add option?", path); |
34143b26 | 106 | return 0; |
121481ab LT |
107 | } |
108 | ||
e011054b LT |
109 | /* |
110 | * Handle a path that was a directory. Four cases: | |
111 | * | |
112 | * - it's already a gitlink in the index, and we keep it that | |
113 | * way, and update it if we can (if we cannot find the HEAD, | |
114 | * we're going to keep it unchanged in the index!) | |
115 | * | |
116 | * - it's a *file* in the index, in which case it should be | |
117 | * removed as a file if removal is allowed, since it doesn't | |
118 | * exist as such any more. If removal isn't allowed, it's | |
119 | * an error. | |
120 | * | |
121 | * (NOTE! This is old and arguably fairly strange behaviour. | |
122 | * We might want to make this an error unconditionally, and | |
123 | * use "--force-remove" if you actually want to force removal). | |
124 | * | |
125 | * - it used to exist as a subdirectory (ie multiple files with | |
126 | * this particular prefix) in the index, in which case it's wrong | |
127 | * to try to update it as a directory. | |
128 | * | |
129 | * - it doesn't exist at all in the index, but it is a valid | |
130 | * git directory, and it should be *added* as a gitlink. | |
131 | */ | |
132 | static int process_directory(const char *path, int len, struct stat *st) | |
133 | { | |
134 | unsigned char sha1[20]; | |
135 | int pos = cache_name_pos(path, len); | |
136 | ||
137 | /* Exact match: file or existing gitlink */ | |
138 | if (pos >= 0) { | |
139 | struct cache_entry *ce = active_cache[pos]; | |
7a51ed66 | 140 | if (S_ISGITLINK(ce->ce_mode)) { |
e011054b LT |
141 | |
142 | /* Do nothing to the index if there is no HEAD! */ | |
143 | if (resolve_gitlink_ref(path, "HEAD", sha1) < 0) | |
144 | return 0; | |
145 | ||
146 | return add_one_path(ce, path, len, st); | |
147 | } | |
148 | /* Should this be an unconditional error? */ | |
149 | return remove_one_path(path); | |
150 | } | |
151 | ||
152 | /* Inexact match: is there perhaps a subdirectory match? */ | |
153 | pos = -pos-1; | |
154 | while (pos < active_nr) { | |
155 | struct cache_entry *ce = active_cache[pos++]; | |
156 | ||
157 | if (strncmp(ce->name, path, len)) | |
158 | break; | |
159 | if (ce->name[len] > '/') | |
160 | break; | |
161 | if (ce->name[len] < '/') | |
162 | continue; | |
163 | ||
164 | /* Subdirectory match - error out */ | |
165 | return error("%s: is a directory - add individual files instead", path); | |
166 | } | |
167 | ||
168 | /* No match - should we add it as a gitlink? */ | |
169 | if (!resolve_gitlink_ref(path, "HEAD", sha1)) | |
170 | return add_one_path(NULL, path, len, st); | |
171 | ||
172 | /* Error out. */ | |
173 | return error("%s: is a directory - add files inside instead", path); | |
174 | } | |
175 | ||
e011054b LT |
176 | static int process_path(const char *path) |
177 | { | |
b4d1690d | 178 | int pos, len; |
e011054b | 179 | struct stat st; |
b4d1690d | 180 | struct cache_entry *ce; |
e011054b | 181 | |
806d13b1 | 182 | len = strlen(path); |
57199892 | 183 | if (has_symlink_leading_path(path, len)) |
806d13b1 JH |
184 | return error("'%s' is beyond a symbolic link", path); |
185 | ||
b4d1690d NTND |
186 | pos = cache_name_pos(path, len); |
187 | ce = pos < 0 ? NULL : active_cache[pos]; | |
188 | if (ce && ce_skip_worktree(ce)) { | |
189 | /* | |
190 | * working directory version is assumed "good" | |
191 | * so updating it does not make sense. | |
192 | * On the other hand, removing it from index should work | |
193 | */ | |
194 | if (allow_remove && remove_file_from_cache(path)) | |
195 | return error("%s: cannot remove from the index", path); | |
196 | return 0; | |
197 | } | |
198 | ||
e011054b LT |
199 | /* |
200 | * First things first: get the stat information, to decide | |
201 | * what to do about the pathname! | |
202 | */ | |
203 | if (lstat(path, &st) < 0) | |
204 | return process_lstat_error(path, errno); | |
205 | ||
e011054b LT |
206 | if (S_ISDIR(st.st_mode)) |
207 | return process_directory(path, len, &st); | |
208 | ||
b4d1690d NTND |
209 | /* |
210 | * Process a regular file | |
211 | */ | |
212 | if (ce && S_ISGITLINK(ce->ce_mode)) | |
213 | return error("%s is already a gitlink, not replacing", path); | |
214 | ||
215 | return add_one_path(ce, path, len, &st); | |
e011054b LT |
216 | } |
217 | ||
d23748a6 JH |
218 | static int add_cacheinfo(unsigned int mode, const unsigned char *sha1, |
219 | const char *path, int stage) | |
9945d980 | 220 | { |
192268c1 | 221 | int size, len, option; |
9945d980 LT |
222 | struct cache_entry *ce; |
223 | ||
d23748a6 | 224 | if (!verify_path(path)) |
7e7abea9 | 225 | return error("Invalid path '%s'", path); |
9945d980 | 226 | |
d23748a6 | 227 | len = strlen(path); |
9945d980 | 228 | size = cache_entry_size(len); |
90321c10 | 229 | ce = xcalloc(1, size); |
9945d980 | 230 | |
e702496e | 231 | hashcpy(ce->sha1, sha1); |
d23748a6 JH |
232 | memcpy(ce->name, path, len); |
233 | ce->ce_flags = create_ce_flags(len, stage); | |
e4479470 | 234 | ce->ce_mode = create_ce_mode(mode); |
5f73076c | 235 | if (assume_unchanged) |
7a51ed66 | 236 | ce->ce_flags |= CE_VALID; |
192268c1 JH |
237 | option = allow_add ? ADD_CACHE_OK_TO_ADD : 0; |
238 | option |= allow_replace ? ADD_CACHE_OK_TO_REPLACE : 0; | |
caf4f582 JH |
239 | if (add_cache_entry(ce, option)) |
240 | return error("%s: cannot add to the index - missing --add option?", | |
d23748a6 JH |
241 | path); |
242 | report("add '%s'", path); | |
caf4f582 | 243 | return 0; |
9945d980 LT |
244 | } |
245 | ||
227bdb18 | 246 | static void chmod_path(int flip, const char *path) |
3e09cdfd JH |
247 | { |
248 | int pos; | |
249 | struct cache_entry *ce; | |
250 | unsigned int mode; | |
f2a19340 | 251 | |
3e09cdfd JH |
252 | pos = cache_name_pos(path, strlen(path)); |
253 | if (pos < 0) | |
227bdb18 | 254 | goto fail; |
3e09cdfd | 255 | ce = active_cache[pos]; |
7a51ed66 | 256 | mode = ce->ce_mode; |
3e09cdfd | 257 | if (!S_ISREG(mode)) |
227bdb18 | 258 | goto fail; |
3e09cdfd JH |
259 | switch (flip) { |
260 | case '+': | |
7a51ed66 | 261 | ce->ce_mode |= 0111; break; |
3e09cdfd | 262 | case '-': |
7a51ed66 | 263 | ce->ce_mode &= ~0111; break; |
3e09cdfd | 264 | default: |
227bdb18 | 265 | goto fail; |
3e09cdfd | 266 | } |
a6e5642f | 267 | cache_tree_invalidate_path(active_cache_tree, path); |
3e09cdfd | 268 | active_cache_changed = 1; |
227bdb18 AR |
269 | report("chmod %cx '%s'", flip, path); |
270 | return; | |
271 | fail: | |
7e44c935 | 272 | die("git update-index: cannot chmod %cx '%s'", flip, path); |
3e09cdfd JH |
273 | } |
274 | ||
ee1bec3d JH |
275 | static void update_one(const char *path, const char *prefix, int prefix_length) |
276 | { | |
277 | const char *p = prefix_path(prefix, prefix_length, path); | |
278 | if (!verify_path(p)) { | |
279 | fprintf(stderr, "Ignoring path %s\n", path); | |
fb69a760 | 280 | goto free_return; |
ee1bec3d | 281 | } |
5f73076c | 282 | if (mark_valid_only) { |
83b327ba | 283 | if (mark_ce_flags(p, CE_VALID, mark_valid_only == MARK_FLAG)) |
5f73076c | 284 | die("Unable to mark file %s", path); |
fb69a760 | 285 | goto free_return; |
5f73076c | 286 | } |
44a36913 NTND |
287 | if (mark_skip_worktree_only) { |
288 | if (mark_ce_flags(p, CE_SKIP_WORKTREE, mark_skip_worktree_only == MARK_FLAG)) | |
5f73076c | 289 | die("Unable to mark file %s", path); |
fb69a760 | 290 | goto free_return; |
5f73076c JH |
291 | } |
292 | ||
ee1bec3d JH |
293 | if (force_remove) { |
294 | if (remove_file_from_cache(p)) | |
7e44c935 | 295 | die("git update-index: unable to remove %s", path); |
caf4f582 | 296 | report("remove '%s'", path); |
fb69a760 | 297 | goto free_return; |
ee1bec3d | 298 | } |
e011054b LT |
299 | if (process_path(p)) |
300 | die("Unable to process path %s", path); | |
caf4f582 | 301 | report("add '%s'", path); |
fb69a760 | 302 | free_return: |
0cc9e70c | 303 | if (p < path || p > path + strlen(path)) |
4b25d091 | 304 | free((char *)p); |
ee1bec3d JH |
305 | } |
306 | ||
d4dbf36d JH |
307 | static void read_index_info(int line_termination) |
308 | { | |
f285a2d7 BC |
309 | struct strbuf buf = STRBUF_INIT; |
310 | struct strbuf uq = STRBUF_INIT; | |
7fb1011e | 311 | |
7fb1011e | 312 | while (strbuf_getline(&buf, stdin, line_termination) != EOF) { |
9c20a470 | 313 | char *ptr, *tab; |
973d6a20 | 314 | char *path_name; |
d4dbf36d JH |
315 | unsigned char sha1[20]; |
316 | unsigned int mode; | |
6aead43d | 317 | unsigned long ul; |
d23748a6 JH |
318 | int stage; |
319 | ||
320 | /* This reads lines formatted in one of three formats: | |
321 | * | |
322 | * (1) mode SP sha1 TAB path | |
f18d244a | 323 | * The first format is what "git apply --index-info" |
d23748a6 JH |
324 | * reports, and used to reconstruct a partial tree |
325 | * that is used for phony merge base tree when falling | |
326 | * back on 3-way merge. | |
327 | * | |
328 | * (2) mode SP type SP sha1 TAB path | |
f18d244a | 329 | * The second format is to stuff "git ls-tree" output |
d23748a6 | 330 | * into the index file. |
fefe81c9 | 331 | * |
d23748a6 JH |
332 | * (3) mode SP sha1 SP stage TAB path |
333 | * This format is to put higher order stages into the | |
f18d244a | 334 | * index file and matches "git ls-files --stage" output. |
d23748a6 | 335 | */ |
6aead43d JM |
336 | errno = 0; |
337 | ul = strtoul(buf.buf, &ptr, 8); | |
338 | if (ptr == buf.buf || *ptr != ' ' | |
339 | || errno || (unsigned int) ul != ul) | |
d4dbf36d | 340 | goto bad_line; |
6aead43d | 341 | mode = ul; |
d4dbf36d | 342 | |
9c20a470 JH |
343 | tab = strchr(ptr, '\t'); |
344 | if (!tab || tab - ptr < 41) | |
345 | goto bad_line; | |
d23748a6 | 346 | |
2d497115 | 347 | if (tab[-2] == ' ' && '0' <= tab[-1] && tab[-1] <= '3') { |
d23748a6 JH |
348 | stage = tab[-1] - '0'; |
349 | ptr = tab + 1; /* point at the head of path */ | |
350 | tab = tab - 2; /* point at tail of sha1 */ | |
351 | } | |
352 | else { | |
353 | stage = 0; | |
354 | ptr = tab + 1; /* point at the head of path */ | |
355 | } | |
356 | ||
9c20a470 JH |
357 | if (get_sha1_hex(tab - 40, sha1) || tab[-41] != ' ') |
358 | goto bad_line; | |
973d6a20 | 359 | |
7fb1011e PH |
360 | path_name = ptr; |
361 | if (line_termination && path_name[0] == '"') { | |
362 | strbuf_reset(&uq); | |
363 | if (unquote_c_style(&uq, path_name, NULL)) { | |
7e44c935 | 364 | die("git update-index: bad quoting of path name"); |
7fb1011e PH |
365 | } |
366 | path_name = uq.buf; | |
367 | } | |
973d6a20 JH |
368 | |
369 | if (!verify_path(path_name)) { | |
370 | fprintf(stderr, "Ignoring path %s\n", path_name); | |
d4dbf36d JH |
371 | continue; |
372 | } | |
373 | ||
374 | if (!mode) { | |
375 | /* mode == 0 means there is no such path -- remove */ | |
973d6a20 | 376 | if (remove_file_from_cache(path_name)) |
7e44c935 | 377 | die("git update-index: unable to remove %s", |
d4dbf36d JH |
378 | ptr); |
379 | } | |
380 | else { | |
381 | /* mode ' ' sha1 '\t' name | |
382 | * ptr[-1] points at tab, | |
383 | * ptr[-41] is at the beginning of sha1 | |
384 | */ | |
385 | ptr[-42] = ptr[-1] = 0; | |
d23748a6 | 386 | if (add_cacheinfo(mode, sha1, path_name, stage)) |
7e44c935 | 387 | die("git update-index: unable to update %s", |
973d6a20 | 388 | path_name); |
d4dbf36d JH |
389 | } |
390 | continue; | |
391 | ||
392 | bad_line: | |
393 | die("malformed index info %s", buf.buf); | |
394 | } | |
e6c019d0 | 395 | strbuf_release(&buf); |
7fb1011e | 396 | strbuf_release(&uq); |
d4dbf36d JH |
397 | } |
398 | ||
f6ab5bb2 | 399 | static const char update_index_usage[] = |
44a36913 | 400 | "git update-index [-q] [--add] [--replace] [--remove] [--unmerged] [--refresh] [--really-refresh] [--cacheinfo] [--chmod=(+|-)x] [--assume-unchanged] [--skip-worktree|--no-skip-worktree] [--info-only] [--force-remove] [--stdin] [--index-info] [--unresolve] [--again | -g] [--ignore-missing] [-z] [--verbose] [--] <file>..."; |
f6ab5bb2 | 401 | |
2bd452d3 JH |
402 | static unsigned char head_sha1[20]; |
403 | static unsigned char merge_head_sha1[20]; | |
404 | ||
405 | static struct cache_entry *read_one_ent(const char *which, | |
406 | unsigned char *ent, const char *path, | |
407 | int namelen, int stage) | |
408 | { | |
409 | unsigned mode; | |
410 | unsigned char sha1[20]; | |
411 | int size; | |
412 | struct cache_entry *ce; | |
413 | ||
414 | if (get_tree_entry(ent, path, sha1, &mode)) { | |
83e77a25 JH |
415 | if (which) |
416 | error("%s: not in %s branch.", path, which); | |
2bd452d3 JH |
417 | return NULL; |
418 | } | |
419 | if (mode == S_IFDIR) { | |
83e77a25 JH |
420 | if (which) |
421 | error("%s: not a blob in %s branch.", path, which); | |
2bd452d3 JH |
422 | return NULL; |
423 | } | |
424 | size = cache_entry_size(namelen); | |
425 | ce = xcalloc(1, size); | |
426 | ||
e702496e | 427 | hashcpy(ce->sha1, sha1); |
2bd452d3 JH |
428 | memcpy(ce->name, path, namelen); |
429 | ce->ce_flags = create_ce_flags(namelen, stage); | |
430 | ce->ce_mode = create_ce_mode(mode); | |
431 | return ce; | |
432 | } | |
433 | ||
434 | static int unresolve_one(const char *path) | |
435 | { | |
436 | int namelen = strlen(path); | |
437 | int pos; | |
438 | int ret = 0; | |
439 | struct cache_entry *ce_2 = NULL, *ce_3 = NULL; | |
440 | ||
441 | /* See if there is such entry in the index. */ | |
442 | pos = cache_name_pos(path, namelen); | |
443 | if (pos < 0) { | |
444 | /* If there isn't, either it is unmerged, or | |
445 | * resolved as "removed" by mistake. We do not | |
446 | * want to do anything in the former case. | |
447 | */ | |
448 | pos = -pos-1; | |
449 | if (pos < active_nr) { | |
450 | struct cache_entry *ce = active_cache[pos]; | |
451 | if (ce_namelen(ce) == namelen && | |
452 | !memcmp(ce->name, path, namelen)) { | |
453 | fprintf(stderr, | |
454 | "%s: skipping still unmerged path.\n", | |
455 | path); | |
456 | goto free_return; | |
457 | } | |
458 | } | |
459 | } | |
460 | ||
461 | /* Grab blobs from given path from HEAD and MERGE_HEAD, | |
462 | * stuff HEAD version in stage #2, | |
463 | * stuff MERGE_HEAD version in stage #3. | |
464 | */ | |
465 | ce_2 = read_one_ent("our", head_sha1, path, namelen, 2); | |
466 | ce_3 = read_one_ent("their", merge_head_sha1, path, namelen, 3); | |
467 | ||
468 | if (!ce_2 || !ce_3) { | |
469 | ret = -1; | |
470 | goto free_return; | |
471 | } | |
a89fccd2 | 472 | if (!hashcmp(ce_2->sha1, ce_3->sha1) && |
2bd452d3 JH |
473 | ce_2->ce_mode == ce_3->ce_mode) { |
474 | fprintf(stderr, "%s: identical in both, skipping.\n", | |
475 | path); | |
476 | goto free_return; | |
477 | } | |
478 | ||
479 | remove_file_from_cache(path); | |
480 | if (add_cache_entry(ce_2, ADD_CACHE_OK_TO_ADD)) { | |
481 | error("%s: cannot add our version to the index.", path); | |
482 | ret = -1; | |
483 | goto free_return; | |
484 | } | |
485 | if (!add_cache_entry(ce_3, ADD_CACHE_OK_TO_ADD)) | |
486 | return 0; | |
487 | error("%s: cannot add their version to the index.", path); | |
488 | ret = -1; | |
489 | free_return: | |
490 | free(ce_2); | |
491 | free(ce_3); | |
492 | return ret; | |
493 | } | |
494 | ||
495 | static void read_head_pointers(void) | |
496 | { | |
913c983e | 497 | if (read_ref("HEAD", head_sha1)) |
d7530708 | 498 | die("No HEAD -- no initial commit yet?"); |
913c983e | 499 | if (read_ref("MERGE_HEAD", merge_head_sha1)) { |
2bd452d3 JH |
500 | fprintf(stderr, "Not in the middle of a merge.\n"); |
501 | exit(0); | |
502 | } | |
503 | } | |
504 | ||
09895c1f JH |
505 | static int do_unresolve(int ac, const char **av, |
506 | const char *prefix, int prefix_length) | |
2bd452d3 JH |
507 | { |
508 | int i; | |
509 | int err = 0; | |
510 | ||
511 | /* Read HEAD and MERGE_HEAD; if MERGE_HEAD does not exist, we | |
512 | * are not doing a merge, so exit with success status. | |
513 | */ | |
514 | read_head_pointers(); | |
515 | ||
516 | for (i = 1; i < ac; i++) { | |
517 | const char *arg = av[i]; | |
09895c1f JH |
518 | const char *p = prefix_path(prefix, prefix_length, arg); |
519 | err |= unresolve_one(p); | |
0cc9e70c | 520 | if (p < arg || p > arg + strlen(arg)) |
4b25d091 | 521 | free((char *)p); |
2bd452d3 JH |
522 | } |
523 | return err; | |
524 | } | |
525 | ||
83e77a25 JH |
526 | static int do_reupdate(int ac, const char **av, |
527 | const char *prefix, int prefix_length) | |
528 | { | |
529 | /* Read HEAD and run update-index on paths that are | |
530 | * merged and already different between index and HEAD. | |
531 | */ | |
532 | int pos; | |
533 | int has_head = 1; | |
0cc9e70c | 534 | const char **pathspec = get_pathspec(prefix, av + 1); |
83e77a25 | 535 | |
913c983e | 536 | if (read_ref("HEAD", head_sha1)) |
83e77a25 JH |
537 | /* If there is no HEAD, that means it is an initial |
538 | * commit. Update everything in the index. | |
539 | */ | |
540 | has_head = 0; | |
541 | redo: | |
542 | for (pos = 0; pos < active_nr; pos++) { | |
543 | struct cache_entry *ce = active_cache[pos]; | |
544 | struct cache_entry *old = NULL; | |
545 | int save_nr; | |
22293b9c JH |
546 | |
547 | if (ce_stage(ce) || !ce_path_match(ce, pathspec)) | |
83e77a25 JH |
548 | continue; |
549 | if (has_head) | |
550 | old = read_one_ent(NULL, head_sha1, | |
551 | ce->name, ce_namelen(ce), 0); | |
552 | if (old && ce->ce_mode == old->ce_mode && | |
a89fccd2 | 553 | !hashcmp(ce->sha1, old->sha1)) { |
83e77a25 JH |
554 | free(old); |
555 | continue; /* unchanged */ | |
556 | } | |
557 | /* Be careful. The working tree may not have the | |
558 | * path anymore, in which case, under 'allow_remove', | |
559 | * or worse yet 'allow_replace', active_nr may decrease. | |
560 | */ | |
561 | save_nr = active_nr; | |
562 | update_one(ce->name + prefix_length, prefix, prefix_length); | |
563 | if (save_nr != active_nr) | |
564 | goto redo; | |
565 | } | |
566 | return 0; | |
567 | } | |
568 | ||
a633fca0 | 569 | int cmd_update_index(int argc, const char **argv, const char *prefix) |
e83c5163 | 570 | { |
ee1bec3d | 571 | int i, newfd, entries, has_errors = 0, line_termination = '\n'; |
121481ab | 572 | int allow_options = 1; |
ee1bec3d | 573 | int read_from_stdin = 0; |
ee1bec3d | 574 | int prefix_length = prefix ? strlen(prefix) : 0; |
227bdb18 | 575 | char set_executable_bit = 0; |
405e5b2f | 576 | unsigned int refresh_flags = 0; |
7b802b86 | 577 | int lock_error = 0; |
fefe81c9 | 578 | struct lock_file *lock_file; |
bb233d69 | 579 | |
ef90d6d4 | 580 | git_config(git_default_config, NULL); |
3e09cdfd | 581 | |
fefe81c9 | 582 | /* We can't free this memory, it becomes part of a linked list parsed atexit() */ |
928e47e3 | 583 | lock_file = xcalloc(1, sizeof(struct lock_file)); |
fefe81c9 | 584 | |
30ca07a2 | 585 | newfd = hold_locked_index(lock_file, 0); |
7b802b86 JH |
586 | if (newfd < 0) |
587 | lock_error = errno; | |
9614b8dc | 588 | |
e83c5163 | 589 | entries = read_cache(); |
9614b8dc | 590 | if (entries < 0) |
2de381f9 | 591 | die("cache corrupted"); |
e83c5163 | 592 | |
e83c5163 | 593 | for (i = 1 ; i < argc; i++) { |
6b5ee137 | 594 | const char *path = argv[i]; |
9ebe6cf9 | 595 | const char *p; |
121481ab LT |
596 | |
597 | if (allow_options && *path == '-') { | |
598 | if (!strcmp(path, "--")) { | |
599 | allow_options = 0; | |
600 | continue; | |
601 | } | |
0ed3715f | 602 | if (!strcmp(path, "-q")) { |
405e5b2f | 603 | refresh_flags |= REFRESH_QUIET; |
0ed3715f LT |
604 | continue; |
605 | } | |
5fdeacb0 JS |
606 | if (!strcmp(path, "--ignore-submodules")) { |
607 | refresh_flags |= REFRESH_IGNORE_SUBMODULES; | |
608 | continue; | |
609 | } | |
121481ab LT |
610 | if (!strcmp(path, "--add")) { |
611 | allow_add = 1; | |
612 | continue; | |
613 | } | |
192268c1 JH |
614 | if (!strcmp(path, "--replace")) { |
615 | allow_replace = 1; | |
616 | continue; | |
617 | } | |
121481ab LT |
618 | if (!strcmp(path, "--remove")) { |
619 | allow_remove = 1; | |
620 | continue; | |
621 | } | |
5d1a5c02 | 622 | if (!strcmp(path, "--unmerged")) { |
405e5b2f | 623 | refresh_flags |= REFRESH_UNMERGED; |
5d1a5c02 LT |
624 | continue; |
625 | } | |
121481ab | 626 | if (!strcmp(path, "--refresh")) { |
f83eafdd | 627 | setup_work_tree(); |
405e5b2f | 628 | has_errors |= refresh_cache(refresh_flags); |
5f73076c JH |
629 | continue; |
630 | } | |
631 | if (!strcmp(path, "--really-refresh")) { | |
f83eafdd | 632 | setup_work_tree(); |
405e5b2f | 633 | has_errors |= refresh_cache(REFRESH_REALLY | refresh_flags); |
121481ab LT |
634 | continue; |
635 | } | |
9945d980 | 636 | if (!strcmp(path, "--cacheinfo")) { |
d23748a6 JH |
637 | unsigned char sha1[20]; |
638 | unsigned int mode; | |
639 | ||
b3f94c4b | 640 | if (i+3 >= argc) |
7e44c935 | 641 | die("git update-index: --cacheinfo <mode> <sha1> <path>"); |
d23748a6 | 642 | |
6e6db39a | 643 | if (strtoul_ui(argv[i+1], 8, &mode) || |
d23748a6 JH |
644 | get_sha1_hex(argv[i+2], sha1) || |
645 | add_cacheinfo(mode, sha1, argv[i+3], 0)) | |
7e44c935 | 646 | die("git update-index: --cacheinfo" |
d23748a6 | 647 | " cannot add %s", argv[i+3]); |
9945d980 LT |
648 | i += 3; |
649 | continue; | |
650 | } | |
3e09cdfd JH |
651 | if (!strcmp(path, "--chmod=-x") || |
652 | !strcmp(path, "--chmod=+x")) { | |
653 | if (argc <= i+1) | |
7e44c935 | 654 | die("git update-index: %s <path>", path); |
227bdb18 | 655 | set_executable_bit = path[8]; |
3e09cdfd JH |
656 | continue; |
657 | } | |
5f73076c | 658 | if (!strcmp(path, "--assume-unchanged")) { |
83b327ba | 659 | mark_valid_only = MARK_FLAG; |
5f73076c JH |
660 | continue; |
661 | } | |
662 | if (!strcmp(path, "--no-assume-unchanged")) { | |
83b327ba | 663 | mark_valid_only = UNMARK_FLAG; |
5f73076c JH |
664 | continue; |
665 | } | |
44a36913 NTND |
666 | if (!strcmp(path, "--no-skip-worktree")) { |
667 | mark_skip_worktree_only = UNMARK_FLAG; | |
668 | continue; | |
669 | } | |
670 | if (!strcmp(path, "--skip-worktree")) { | |
671 | mark_skip_worktree_only = MARK_FLAG; | |
5f73076c JH |
672 | continue; |
673 | } | |
df6e1516 BL |
674 | if (!strcmp(path, "--info-only")) { |
675 | info_only = 1; | |
676 | continue; | |
677 | } | |
0ff5bf7c | 678 | if (!strcmp(path, "--force-remove")) { |
9b63f501 | 679 | force_remove = 1; |
0ff5bf7c JH |
680 | continue; |
681 | } | |
ee1bec3d JH |
682 | if (!strcmp(path, "-z")) { |
683 | line_termination = 0; | |
684 | continue; | |
685 | } | |
686 | if (!strcmp(path, "--stdin")) { | |
687 | if (i != argc - 1) | |
688 | die("--stdin must be at the end"); | |
689 | read_from_stdin = 1; | |
690 | break; | |
691 | } | |
d4dbf36d | 692 | if (!strcmp(path, "--index-info")) { |
a41c175d SP |
693 | if (i != argc - 1) |
694 | die("--index-info must be at the end"); | |
d4dbf36d JH |
695 | allow_add = allow_replace = allow_remove = 1; |
696 | read_index_info(line_termination); | |
a41c175d | 697 | break; |
d4dbf36d | 698 | } |
2bd452d3 | 699 | if (!strcmp(path, "--unresolve")) { |
09895c1f JH |
700 | has_errors = do_unresolve(argc - i, argv + i, |
701 | prefix, prefix_length); | |
2bd452d3 JH |
702 | if (has_errors) |
703 | active_cache_changed = 0; | |
704 | goto finish; | |
705 | } | |
7099c9c7 | 706 | if (!strcmp(path, "--again") || !strcmp(path, "-g")) { |
f83eafdd | 707 | setup_work_tree(); |
83e77a25 JH |
708 | has_errors = do_reupdate(argc - i, argv + i, |
709 | prefix, prefix_length); | |
710 | if (has_errors) | |
711 | active_cache_changed = 0; | |
712 | goto finish; | |
713 | } | |
c6e007b0 | 714 | if (!strcmp(path, "--ignore-missing")) { |
405e5b2f | 715 | refresh_flags |= REFRESH_IGNORE_MISSING; |
c6e007b0 JB |
716 | continue; |
717 | } | |
caf4f582 JH |
718 | if (!strcmp(path, "--verbose")) { |
719 | verbose = 1; | |
720 | continue; | |
721 | } | |
f6ab5bb2 PB |
722 | if (!strcmp(path, "-h") || !strcmp(path, "--help")) |
723 | usage(update_index_usage); | |
2de381f9 | 724 | die("unknown option %s", path); |
121481ab | 725 | } |
f83eafdd | 726 | setup_work_tree(); |
9ebe6cf9 AR |
727 | p = prefix_path(prefix, prefix_length, path); |
728 | update_one(p, NULL, 0); | |
227bdb18 | 729 | if (set_executable_bit) |
9ebe6cf9 AR |
730 | chmod_path(set_executable_bit, p); |
731 | if (p < path || p > path + strlen(path)) | |
4b25d091 | 732 | free((char *)p); |
ee1bec3d JH |
733 | } |
734 | if (read_from_stdin) { | |
f285a2d7 | 735 | struct strbuf buf = STRBUF_INIT, nbuf = STRBUF_INIT; |
7fb1011e | 736 | |
f83eafdd | 737 | setup_work_tree(); |
7fb1011e | 738 | while (strbuf_getline(&buf, stdin, line_termination) != EOF) { |
fb69a760 | 739 | const char *p; |
7fb1011e PH |
740 | if (line_termination && buf.buf[0] == '"') { |
741 | strbuf_reset(&nbuf); | |
742 | if (unquote_c_style(&nbuf, buf.buf, NULL)) | |
743 | die("line is badly quoted"); | |
744 | strbuf_swap(&buf, &nbuf); | |
745 | } | |
746 | p = prefix_path(prefix, prefix_length, buf.buf); | |
fb69a760 JH |
747 | update_one(p, NULL, 0); |
748 | if (set_executable_bit) | |
227bdb18 | 749 | chmod_path(set_executable_bit, p); |
7fb1011e PH |
750 | if (p < buf.buf || p > buf.buf + buf.len) |
751 | free((char *)p); | |
9b63f501 | 752 | } |
7fb1011e | 753 | strbuf_release(&nbuf); |
e6c019d0 | 754 | strbuf_release(&buf); |
e83c5163 | 755 | } |
2bd452d3 JH |
756 | |
757 | finish: | |
5cd5ace7 | 758 | if (active_cache_changed) { |
7b802b86 JH |
759 | if (newfd < 0) { |
760 | if (refresh_flags & REFRESH_QUIET) | |
761 | exit(128); | |
e43a6fd3 | 762 | unable_to_lock_index_die(get_index_file(), lock_error); |
7b802b86 | 763 | } |
5cd5ace7 | 764 | if (write_cache(newfd, active_cache, active_nr) || |
4ed7cd3a | 765 | commit_locked_index(lock_file)) |
021b6e45 | 766 | die("Unable to write new index file"); |
5cd5ace7 | 767 | } |
9614b8dc | 768 | |
fefe81c9 LS |
769 | rollback_lock_file(lock_file); |
770 | ||
c4b83e61 | 771 | return has_errors ? 1 : 0; |
e83c5163 | 772 | } |