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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" |
4a39f79d | 12 | #include "resolve-undo.h" |
309be813 | 13 | #include "parse-options.h" |
64acde94 | 14 | #include "pathspec.h" |
429bb40a | 15 | #include "dir.h" |
e83c5163 | 16 | |
121481ab LT |
17 | /* |
18 | * Default to not allowing changes to the list of files. The | |
19 | * tool doesn't actually care, but this makes it harder to add | |
20 | * files to the revision control by mistake by doing something | |
f18d244a | 21 | * like "git update-index *" and suddenly having all the object |
121481ab LT |
22 | * files be revision controlled. |
23 | */ | |
caf4f582 JH |
24 | static int allow_add; |
25 | static int allow_remove; | |
26 | static int allow_replace; | |
caf4f582 | 27 | static int info_only; |
9b63f501 | 28 | static int force_remove; |
caf4f582 | 29 | static int verbose; |
96f1e58f | 30 | static int mark_valid_only; |
44a36913 | 31 | static int mark_skip_worktree_only; |
83b327ba NTND |
32 | #define MARK_FLAG 1 |
33 | #define UNMARK_FLAG 2 | |
5f73076c | 34 | |
28bea9e5 | 35 | __attribute__((format (printf, 1, 2))) |
caf4f582 JH |
36 | static void report(const char *fmt, ...) |
37 | { | |
38 | va_list vp; | |
39 | ||
40 | if (!verbose) | |
41 | return; | |
42 | ||
43 | va_start(vp, fmt); | |
44 | vprintf(fmt, vp); | |
45 | putchar('\n'); | |
46 | va_end(vp); | |
47 | } | |
48 | ||
83b327ba | 49 | static int mark_ce_flags(const char *path, int flag, int mark) |
5f73076c JH |
50 | { |
51 | int namelen = strlen(path); | |
52 | int pos = cache_name_pos(path, namelen); | |
53 | if (0 <= pos) { | |
83b327ba NTND |
54 | if (mark) |
55 | active_cache[pos]->ce_flags |= flag; | |
56 | else | |
57 | active_cache[pos]->ce_flags &= ~flag; | |
a5400efe | 58 | cache_tree_invalidate_path(&the_index, path); |
782a5ff9 | 59 | active_cache_changed |= CE_ENTRY_CHANGED; |
5f73076c JH |
60 | return 0; |
61 | } | |
62 | return -1; | |
63 | } | |
64 | ||
e011054b | 65 | static int remove_one_path(const char *path) |
e83c5163 | 66 | { |
e011054b LT |
67 | if (!allow_remove) |
68 | return error("%s: does not exist and --remove not passed", path); | |
69 | if (remove_file_from_cache(path)) | |
70 | return error("%s: cannot remove from the index", path); | |
71 | return 0; | |
72 | } | |
a6e5642f | 73 | |
e011054b LT |
74 | /* |
75 | * Handle a path that couldn't be lstat'ed. It's either: | |
76 | * - missing file (ENOENT or ENOTDIR). That's ok if we're | |
77 | * supposed to be removing it and the removal actually | |
78 | * succeeds. | |
79 | * - permission error. That's never ok. | |
80 | */ | |
81 | static int process_lstat_error(const char *path, int err) | |
82 | { | |
83 | if (err == ENOENT || err == ENOTDIR) | |
84 | return remove_one_path(path); | |
85 | return error("lstat(\"%s\"): %s", path, strerror(errno)); | |
86 | } | |
a6e5642f | 87 | |
9c5e6c80 | 88 | static int add_one_path(const struct cache_entry *old, const char *path, int len, struct stat *st) |
e011054b | 89 | { |
22631473 LT |
90 | int option, size; |
91 | struct cache_entry *ce; | |
3e09cdfd | 92 | |
22631473 LT |
93 | /* Was the old index entry already up-to-date? */ |
94 | if (old && !ce_stage(old) && !ce_match_stat(old, st, 0)) | |
95 | return 0; | |
96 | ||
97 | size = cache_entry_size(len); | |
98 | ce = xcalloc(1, size); | |
e011054b | 99 | memcpy(ce->name, path, len); |
b60e188c TG |
100 | ce->ce_flags = create_ce_flags(0); |
101 | ce->ce_namelen = len; | |
e011054b LT |
102 | fill_stat_cache_info(ce, st); |
103 | ce->ce_mode = ce_mode_from_stat(old, st->st_mode); | |
ec1fcc16 | 104 | |
c4ce46fc | 105 | if (index_path(ce->sha1, path, st, |
dc4cd767 JM |
106 | info_only ? 0 : HASH_WRITE_OBJECT)) { |
107 | free(ce); | |
ec1fcc16 | 108 | return -1; |
dc4cd767 | 109 | } |
192268c1 JH |
110 | option = allow_add ? ADD_CACHE_OK_TO_ADD : 0; |
111 | option |= allow_replace ? ADD_CACHE_OK_TO_REPLACE : 0; | |
34143b26 | 112 | if (add_cache_entry(ce, option)) |
e011054b | 113 | return error("%s: cannot add to the index - missing --add option?", path); |
34143b26 | 114 | return 0; |
121481ab LT |
115 | } |
116 | ||
e011054b LT |
117 | /* |
118 | * Handle a path that was a directory. Four cases: | |
119 | * | |
120 | * - it's already a gitlink in the index, and we keep it that | |
121 | * way, and update it if we can (if we cannot find the HEAD, | |
122 | * we're going to keep it unchanged in the index!) | |
123 | * | |
124 | * - it's a *file* in the index, in which case it should be | |
125 | * removed as a file if removal is allowed, since it doesn't | |
126 | * exist as such any more. If removal isn't allowed, it's | |
127 | * an error. | |
128 | * | |
129 | * (NOTE! This is old and arguably fairly strange behaviour. | |
130 | * We might want to make this an error unconditionally, and | |
131 | * use "--force-remove" if you actually want to force removal). | |
132 | * | |
133 | * - it used to exist as a subdirectory (ie multiple files with | |
134 | * this particular prefix) in the index, in which case it's wrong | |
135 | * to try to update it as a directory. | |
136 | * | |
137 | * - it doesn't exist at all in the index, but it is a valid | |
138 | * git directory, and it should be *added* as a gitlink. | |
139 | */ | |
140 | static int process_directory(const char *path, int len, struct stat *st) | |
141 | { | |
142 | unsigned char sha1[20]; | |
143 | int pos = cache_name_pos(path, len); | |
144 | ||
145 | /* Exact match: file or existing gitlink */ | |
146 | if (pos >= 0) { | |
9c5e6c80 | 147 | const struct cache_entry *ce = active_cache[pos]; |
7a51ed66 | 148 | if (S_ISGITLINK(ce->ce_mode)) { |
e011054b LT |
149 | |
150 | /* Do nothing to the index if there is no HEAD! */ | |
151 | if (resolve_gitlink_ref(path, "HEAD", sha1) < 0) | |
152 | return 0; | |
153 | ||
154 | return add_one_path(ce, path, len, st); | |
155 | } | |
156 | /* Should this be an unconditional error? */ | |
157 | return remove_one_path(path); | |
158 | } | |
159 | ||
160 | /* Inexact match: is there perhaps a subdirectory match? */ | |
161 | pos = -pos-1; | |
162 | while (pos < active_nr) { | |
9c5e6c80 | 163 | const struct cache_entry *ce = active_cache[pos++]; |
e011054b LT |
164 | |
165 | if (strncmp(ce->name, path, len)) | |
166 | break; | |
167 | if (ce->name[len] > '/') | |
168 | break; | |
169 | if (ce->name[len] < '/') | |
170 | continue; | |
171 | ||
172 | /* Subdirectory match - error out */ | |
173 | return error("%s: is a directory - add individual files instead", path); | |
174 | } | |
175 | ||
176 | /* No match - should we add it as a gitlink? */ | |
177 | if (!resolve_gitlink_ref(path, "HEAD", sha1)) | |
178 | return add_one_path(NULL, path, len, st); | |
179 | ||
180 | /* Error out. */ | |
181 | return error("%s: is a directory - add files inside instead", path); | |
182 | } | |
183 | ||
e011054b LT |
184 | static int process_path(const char *path) |
185 | { | |
b4d1690d | 186 | int pos, len; |
e011054b | 187 | struct stat st; |
9c5e6c80 | 188 | const struct cache_entry *ce; |
e011054b | 189 | |
806d13b1 | 190 | len = strlen(path); |
57199892 | 191 | if (has_symlink_leading_path(path, len)) |
806d13b1 JH |
192 | return error("'%s' is beyond a symbolic link", path); |
193 | ||
b4d1690d NTND |
194 | pos = cache_name_pos(path, len); |
195 | ce = pos < 0 ? NULL : active_cache[pos]; | |
196 | if (ce && ce_skip_worktree(ce)) { | |
197 | /* | |
198 | * working directory version is assumed "good" | |
199 | * so updating it does not make sense. | |
200 | * On the other hand, removing it from index should work | |
201 | */ | |
202 | if (allow_remove && remove_file_from_cache(path)) | |
203 | return error("%s: cannot remove from the index", path); | |
204 | return 0; | |
205 | } | |
206 | ||
e011054b LT |
207 | /* |
208 | * First things first: get the stat information, to decide | |
209 | * what to do about the pathname! | |
210 | */ | |
211 | if (lstat(path, &st) < 0) | |
212 | return process_lstat_error(path, errno); | |
213 | ||
e011054b LT |
214 | if (S_ISDIR(st.st_mode)) |
215 | return process_directory(path, len, &st); | |
216 | ||
b4d1690d | 217 | return add_one_path(ce, path, len, &st); |
e011054b LT |
218 | } |
219 | ||
d23748a6 JH |
220 | static int add_cacheinfo(unsigned int mode, const unsigned char *sha1, |
221 | const char *path, int stage) | |
9945d980 | 222 | { |
192268c1 | 223 | int size, len, option; |
9945d980 LT |
224 | struct cache_entry *ce; |
225 | ||
d23748a6 | 226 | if (!verify_path(path)) |
7e7abea9 | 227 | return error("Invalid path '%s'", path); |
9945d980 | 228 | |
d23748a6 | 229 | len = strlen(path); |
9945d980 | 230 | size = cache_entry_size(len); |
90321c10 | 231 | ce = xcalloc(1, size); |
9945d980 | 232 | |
e702496e | 233 | hashcpy(ce->sha1, sha1); |
d23748a6 | 234 | memcpy(ce->name, path, len); |
b60e188c TG |
235 | ce->ce_flags = create_ce_flags(stage); |
236 | ce->ce_namelen = len; | |
e4479470 | 237 | ce->ce_mode = create_ce_mode(mode); |
5f73076c | 238 | if (assume_unchanged) |
7a51ed66 | 239 | ce->ce_flags |= CE_VALID; |
192268c1 JH |
240 | option = allow_add ? ADD_CACHE_OK_TO_ADD : 0; |
241 | option |= allow_replace ? ADD_CACHE_OK_TO_REPLACE : 0; | |
caf4f582 JH |
242 | if (add_cache_entry(ce, option)) |
243 | return error("%s: cannot add to the index - missing --add option?", | |
d23748a6 JH |
244 | path); |
245 | report("add '%s'", path); | |
caf4f582 | 246 | return 0; |
9945d980 LT |
247 | } |
248 | ||
227bdb18 | 249 | static void chmod_path(int flip, const char *path) |
3e09cdfd JH |
250 | { |
251 | int pos; | |
252 | struct cache_entry *ce; | |
253 | unsigned int mode; | |
f2a19340 | 254 | |
3e09cdfd JH |
255 | pos = cache_name_pos(path, strlen(path)); |
256 | if (pos < 0) | |
227bdb18 | 257 | goto fail; |
3e09cdfd | 258 | ce = active_cache[pos]; |
7a51ed66 | 259 | mode = ce->ce_mode; |
3e09cdfd | 260 | if (!S_ISREG(mode)) |
227bdb18 | 261 | goto fail; |
3e09cdfd JH |
262 | switch (flip) { |
263 | case '+': | |
7a51ed66 | 264 | ce->ce_mode |= 0111; break; |
3e09cdfd | 265 | case '-': |
7a51ed66 | 266 | ce->ce_mode &= ~0111; break; |
3e09cdfd | 267 | default: |
227bdb18 | 268 | goto fail; |
3e09cdfd | 269 | } |
a5400efe | 270 | cache_tree_invalidate_path(&the_index, path); |
782a5ff9 | 271 | active_cache_changed |= CE_ENTRY_CHANGED; |
227bdb18 AR |
272 | report("chmod %cx '%s'", flip, path); |
273 | return; | |
274 | fail: | |
7e44c935 | 275 | die("git update-index: cannot chmod %cx '%s'", flip, path); |
3e09cdfd JH |
276 | } |
277 | ||
6bb69077 | 278 | static void update_one(const char *path) |
ee1bec3d | 279 | { |
6bb69077 | 280 | if (!verify_path(path)) { |
ee1bec3d | 281 | fprintf(stderr, "Ignoring path %s\n", path); |
6bb69077 | 282 | return; |
ee1bec3d | 283 | } |
5f73076c | 284 | if (mark_valid_only) { |
6bb69077 | 285 | if (mark_ce_flags(path, CE_VALID, mark_valid_only == MARK_FLAG)) |
5f73076c | 286 | die("Unable to mark file %s", path); |
6bb69077 | 287 | return; |
5f73076c | 288 | } |
44a36913 | 289 | if (mark_skip_worktree_only) { |
6bb69077 | 290 | if (mark_ce_flags(path, CE_SKIP_WORKTREE, mark_skip_worktree_only == MARK_FLAG)) |
5f73076c | 291 | die("Unable to mark file %s", path); |
6bb69077 | 292 | return; |
5f73076c JH |
293 | } |
294 | ||
ee1bec3d | 295 | if (force_remove) { |
6bb69077 | 296 | if (remove_file_from_cache(path)) |
7e44c935 | 297 | die("git update-index: unable to remove %s", path); |
caf4f582 | 298 | report("remove '%s'", path); |
6bb69077 | 299 | return; |
ee1bec3d | 300 | } |
6bb69077 | 301 | if (process_path(path)) |
e011054b | 302 | die("Unable to process path %s", path); |
caf4f582 | 303 | report("add '%s'", path); |
ee1bec3d JH |
304 | } |
305 | ||
d4dbf36d JH |
306 | static void read_index_info(int line_termination) |
307 | { | |
f285a2d7 BC |
308 | struct strbuf buf = STRBUF_INIT; |
309 | struct strbuf uq = STRBUF_INIT; | |
7fb1011e | 310 | |
7fb1011e | 311 | while (strbuf_getline(&buf, stdin, line_termination) != EOF) { |
9c20a470 | 312 | char *ptr, *tab; |
973d6a20 | 313 | char *path_name; |
d4dbf36d JH |
314 | unsigned char sha1[20]; |
315 | unsigned int mode; | |
6aead43d | 316 | unsigned long ul; |
d23748a6 JH |
317 | int stage; |
318 | ||
319 | /* This reads lines formatted in one of three formats: | |
320 | * | |
321 | * (1) mode SP sha1 TAB path | |
f18d244a | 322 | * The first format is what "git apply --index-info" |
d23748a6 JH |
323 | * reports, and used to reconstruct a partial tree |
324 | * that is used for phony merge base tree when falling | |
325 | * back on 3-way merge. | |
326 | * | |
327 | * (2) mode SP type SP sha1 TAB path | |
f18d244a | 328 | * The second format is to stuff "git ls-tree" output |
d23748a6 | 329 | * into the index file. |
fefe81c9 | 330 | * |
d23748a6 JH |
331 | * (3) mode SP sha1 SP stage TAB path |
332 | * This format is to put higher order stages into the | |
f18d244a | 333 | * index file and matches "git ls-files --stage" output. |
d23748a6 | 334 | */ |
6aead43d JM |
335 | errno = 0; |
336 | ul = strtoul(buf.buf, &ptr, 8); | |
337 | if (ptr == buf.buf || *ptr != ' ' | |
338 | || errno || (unsigned int) ul != ul) | |
d4dbf36d | 339 | goto bad_line; |
6aead43d | 340 | mode = ul; |
d4dbf36d | 341 | |
9c20a470 JH |
342 | tab = strchr(ptr, '\t'); |
343 | if (!tab || tab - ptr < 41) | |
344 | goto bad_line; | |
d23748a6 | 345 | |
2d497115 | 346 | if (tab[-2] == ' ' && '0' <= tab[-1] && tab[-1] <= '3') { |
d23748a6 JH |
347 | stage = tab[-1] - '0'; |
348 | ptr = tab + 1; /* point at the head of path */ | |
349 | tab = tab - 2; /* point at tail of sha1 */ | |
350 | } | |
351 | else { | |
352 | stage = 0; | |
353 | ptr = tab + 1; /* point at the head of path */ | |
354 | } | |
355 | ||
9c20a470 JH |
356 | if (get_sha1_hex(tab - 40, sha1) || tab[-41] != ' ') |
357 | goto bad_line; | |
973d6a20 | 358 | |
7fb1011e PH |
359 | path_name = ptr; |
360 | if (line_termination && path_name[0] == '"') { | |
361 | strbuf_reset(&uq); | |
362 | if (unquote_c_style(&uq, path_name, NULL)) { | |
7e44c935 | 363 | die("git update-index: bad quoting of path name"); |
7fb1011e PH |
364 | } |
365 | path_name = uq.buf; | |
366 | } | |
973d6a20 JH |
367 | |
368 | if (!verify_path(path_name)) { | |
369 | fprintf(stderr, "Ignoring path %s\n", path_name); | |
d4dbf36d JH |
370 | continue; |
371 | } | |
372 | ||
373 | if (!mode) { | |
374 | /* mode == 0 means there is no such path -- remove */ | |
973d6a20 | 375 | if (remove_file_from_cache(path_name)) |
7e44c935 | 376 | die("git update-index: unable to remove %s", |
d4dbf36d JH |
377 | ptr); |
378 | } | |
379 | else { | |
380 | /* mode ' ' sha1 '\t' name | |
381 | * ptr[-1] points at tab, | |
382 | * ptr[-41] is at the beginning of sha1 | |
383 | */ | |
384 | ptr[-42] = ptr[-1] = 0; | |
d23748a6 | 385 | if (add_cacheinfo(mode, sha1, path_name, stage)) |
7e44c935 | 386 | die("git update-index: unable to update %s", |
973d6a20 | 387 | path_name); |
d4dbf36d JH |
388 | } |
389 | continue; | |
390 | ||
391 | bad_line: | |
392 | die("malformed index info %s", buf.buf); | |
393 | } | |
e6c019d0 | 394 | strbuf_release(&buf); |
7fb1011e | 395 | strbuf_release(&uq); |
d4dbf36d JH |
396 | } |
397 | ||
309be813 | 398 | static const char * const update_index_usage[] = { |
4a4838b4 | 399 | N_("git update-index [options] [--] [<file>...]"), |
309be813 JN |
400 | NULL |
401 | }; | |
f6ab5bb2 | 402 | |
2bd452d3 JH |
403 | static unsigned char head_sha1[20]; |
404 | static unsigned char merge_head_sha1[20]; | |
405 | ||
406 | static struct cache_entry *read_one_ent(const char *which, | |
407 | unsigned char *ent, const char *path, | |
408 | int namelen, int stage) | |
409 | { | |
410 | unsigned mode; | |
411 | unsigned char sha1[20]; | |
412 | int size; | |
413 | struct cache_entry *ce; | |
414 | ||
415 | if (get_tree_entry(ent, path, sha1, &mode)) { | |
83e77a25 JH |
416 | if (which) |
417 | error("%s: not in %s branch.", path, which); | |
2bd452d3 JH |
418 | return NULL; |
419 | } | |
420 | if (mode == S_IFDIR) { | |
83e77a25 JH |
421 | if (which) |
422 | error("%s: not a blob in %s branch.", path, which); | |
2bd452d3 JH |
423 | return NULL; |
424 | } | |
425 | size = cache_entry_size(namelen); | |
426 | ce = xcalloc(1, size); | |
427 | ||
e702496e | 428 | hashcpy(ce->sha1, sha1); |
2bd452d3 | 429 | memcpy(ce->name, path, namelen); |
b60e188c TG |
430 | ce->ce_flags = create_ce_flags(stage); |
431 | ce->ce_namelen = namelen; | |
2bd452d3 JH |
432 | ce->ce_mode = create_ce_mode(mode); |
433 | return ce; | |
434 | } | |
435 | ||
436 | static int unresolve_one(const char *path) | |
437 | { | |
438 | int namelen = strlen(path); | |
439 | int pos; | |
440 | int ret = 0; | |
441 | struct cache_entry *ce_2 = NULL, *ce_3 = NULL; | |
442 | ||
443 | /* See if there is such entry in the index. */ | |
444 | pos = cache_name_pos(path, namelen); | |
8aa38563 JH |
445 | if (0 <= pos) { |
446 | /* already merged */ | |
447 | pos = unmerge_cache_entry_at(pos); | |
448 | if (pos < active_nr) { | |
9c5e6c80 | 449 | const struct cache_entry *ce = active_cache[pos]; |
8aa38563 JH |
450 | if (ce_stage(ce) && |
451 | ce_namelen(ce) == namelen && | |
452 | !memcmp(ce->name, path, namelen)) | |
453 | return 0; | |
454 | } | |
455 | /* no resolve-undo information; fall back */ | |
456 | } else { | |
2bd452d3 JH |
457 | /* If there isn't, either it is unmerged, or |
458 | * resolved as "removed" by mistake. We do not | |
459 | * want to do anything in the former case. | |
460 | */ | |
461 | pos = -pos-1; | |
462 | if (pos < active_nr) { | |
9c5e6c80 | 463 | const struct cache_entry *ce = active_cache[pos]; |
2bd452d3 JH |
464 | if (ce_namelen(ce) == namelen && |
465 | !memcmp(ce->name, path, namelen)) { | |
466 | fprintf(stderr, | |
467 | "%s: skipping still unmerged path.\n", | |
468 | path); | |
469 | goto free_return; | |
470 | } | |
471 | } | |
472 | } | |
473 | ||
474 | /* Grab blobs from given path from HEAD and MERGE_HEAD, | |
475 | * stuff HEAD version in stage #2, | |
476 | * stuff MERGE_HEAD version in stage #3. | |
477 | */ | |
478 | ce_2 = read_one_ent("our", head_sha1, path, namelen, 2); | |
479 | ce_3 = read_one_ent("their", merge_head_sha1, path, namelen, 3); | |
480 | ||
481 | if (!ce_2 || !ce_3) { | |
482 | ret = -1; | |
483 | goto free_return; | |
484 | } | |
a89fccd2 | 485 | if (!hashcmp(ce_2->sha1, ce_3->sha1) && |
2bd452d3 JH |
486 | ce_2->ce_mode == ce_3->ce_mode) { |
487 | fprintf(stderr, "%s: identical in both, skipping.\n", | |
488 | path); | |
489 | goto free_return; | |
490 | } | |
491 | ||
492 | remove_file_from_cache(path); | |
493 | if (add_cache_entry(ce_2, ADD_CACHE_OK_TO_ADD)) { | |
494 | error("%s: cannot add our version to the index.", path); | |
495 | ret = -1; | |
496 | goto free_return; | |
497 | } | |
498 | if (!add_cache_entry(ce_3, ADD_CACHE_OK_TO_ADD)) | |
499 | return 0; | |
500 | error("%s: cannot add their version to the index.", path); | |
501 | ret = -1; | |
502 | free_return: | |
503 | free(ce_2); | |
504 | free(ce_3); | |
505 | return ret; | |
506 | } | |
507 | ||
508 | static void read_head_pointers(void) | |
509 | { | |
913c983e | 510 | if (read_ref("HEAD", head_sha1)) |
d7530708 | 511 | die("No HEAD -- no initial commit yet?"); |
913c983e | 512 | if (read_ref("MERGE_HEAD", merge_head_sha1)) { |
2bd452d3 JH |
513 | fprintf(stderr, "Not in the middle of a merge.\n"); |
514 | exit(0); | |
515 | } | |
516 | } | |
517 | ||
09895c1f JH |
518 | static int do_unresolve(int ac, const char **av, |
519 | const char *prefix, int prefix_length) | |
2bd452d3 JH |
520 | { |
521 | int i; | |
522 | int err = 0; | |
523 | ||
524 | /* Read HEAD and MERGE_HEAD; if MERGE_HEAD does not exist, we | |
525 | * are not doing a merge, so exit with success status. | |
526 | */ | |
527 | read_head_pointers(); | |
528 | ||
529 | for (i = 1; i < ac; i++) { | |
530 | const char *arg = av[i]; | |
09895c1f JH |
531 | const char *p = prefix_path(prefix, prefix_length, arg); |
532 | err |= unresolve_one(p); | |
0cc9e70c | 533 | if (p < arg || p > arg + strlen(arg)) |
4b25d091 | 534 | free((char *)p); |
2bd452d3 JH |
535 | } |
536 | return err; | |
537 | } | |
538 | ||
83e77a25 JH |
539 | static int do_reupdate(int ac, const char **av, |
540 | const char *prefix, int prefix_length) | |
541 | { | |
542 | /* Read HEAD and run update-index on paths that are | |
543 | * merged and already different between index and HEAD. | |
544 | */ | |
545 | int pos; | |
546 | int has_head = 1; | |
eb9cb55b NTND |
547 | struct pathspec pathspec; |
548 | ||
0fdc2ae5 NTND |
549 | parse_pathspec(&pathspec, 0, |
550 | PATHSPEC_PREFER_CWD, | |
551 | prefix, av + 1); | |
83e77a25 | 552 | |
913c983e | 553 | if (read_ref("HEAD", head_sha1)) |
83e77a25 JH |
554 | /* If there is no HEAD, that means it is an initial |
555 | * commit. Update everything in the index. | |
556 | */ | |
557 | has_head = 0; | |
558 | redo: | |
559 | for (pos = 0; pos < active_nr; pos++) { | |
9c5e6c80 | 560 | const struct cache_entry *ce = active_cache[pos]; |
83e77a25 JH |
561 | struct cache_entry *old = NULL; |
562 | int save_nr; | |
5699d17e | 563 | char *path; |
22293b9c | 564 | |
429bb40a | 565 | if (ce_stage(ce) || !ce_path_match(ce, &pathspec, NULL)) |
83e77a25 JH |
566 | continue; |
567 | if (has_head) | |
568 | old = read_one_ent(NULL, head_sha1, | |
569 | ce->name, ce_namelen(ce), 0); | |
570 | if (old && ce->ce_mode == old->ce_mode && | |
a89fccd2 | 571 | !hashcmp(ce->sha1, old->sha1)) { |
83e77a25 JH |
572 | free(old); |
573 | continue; /* unchanged */ | |
574 | } | |
575 | /* Be careful. The working tree may not have the | |
576 | * path anymore, in which case, under 'allow_remove', | |
577 | * or worse yet 'allow_replace', active_nr may decrease. | |
578 | */ | |
579 | save_nr = active_nr; | |
5699d17e KB |
580 | path = xstrdup(ce->name); |
581 | update_one(path); | |
582 | free(path); | |
83e77a25 JH |
583 | if (save_nr != active_nr) |
584 | goto redo; | |
585 | } | |
eb9cb55b | 586 | free_pathspec(&pathspec); |
83e77a25 JH |
587 | return 0; |
588 | } | |
589 | ||
309be813 JN |
590 | struct refresh_params { |
591 | unsigned int flags; | |
592 | int *has_errors; | |
593 | }; | |
594 | ||
595 | static int refresh(struct refresh_params *o, unsigned int flag) | |
596 | { | |
597 | setup_work_tree(); | |
7349afd2 | 598 | read_cache_preload(NULL); |
309be813 JN |
599 | *o->has_errors |= refresh_cache(o->flags | flag); |
600 | return 0; | |
601 | } | |
602 | ||
603 | static int refresh_callback(const struct option *opt, | |
604 | const char *arg, int unset) | |
605 | { | |
606 | return refresh(opt->value, 0); | |
607 | } | |
608 | ||
609 | static int really_refresh_callback(const struct option *opt, | |
610 | const char *arg, int unset) | |
611 | { | |
612 | return refresh(opt->value, REFRESH_REALLY); | |
613 | } | |
614 | ||
615 | static int chmod_callback(const struct option *opt, | |
616 | const char *arg, int unset) | |
617 | { | |
618 | char *flip = opt->value; | |
619 | if ((arg[0] != '-' && arg[0] != '+') || arg[1] != 'x' || arg[2]) | |
620 | return error("option 'chmod' expects \"+x\" or \"-x\""); | |
621 | *flip = arg[0]; | |
622 | return 0; | |
623 | } | |
624 | ||
625 | static int resolve_undo_clear_callback(const struct option *opt, | |
626 | const char *arg, int unset) | |
627 | { | |
628 | resolve_undo_clear(); | |
629 | return 0; | |
630 | } | |
631 | ||
ec160ae1 JH |
632 | static int parse_new_style_cacheinfo(const char *arg, |
633 | unsigned int *mode, | |
634 | unsigned char sha1[], | |
635 | const char **path) | |
636 | { | |
637 | unsigned long ul; | |
638 | char *endp; | |
639 | ||
640 | errno = 0; | |
641 | ul = strtoul(arg, &endp, 8); | |
642 | if (errno || endp == arg || *endp != ',' || (unsigned int) ul != ul) | |
643 | return -1; /* not a new-style cacheinfo */ | |
644 | *mode = ul; | |
645 | endp++; | |
646 | if (get_sha1_hex(endp, sha1) || endp[40] != ',') | |
647 | return -1; | |
648 | *path = endp + 41; | |
649 | return 0; | |
650 | } | |
651 | ||
309be813 JN |
652 | static int cacheinfo_callback(struct parse_opt_ctx_t *ctx, |
653 | const struct option *opt, int unset) | |
654 | { | |
655 | unsigned char sha1[20]; | |
656 | unsigned int mode; | |
ec160ae1 | 657 | const char *path; |
309be813 | 658 | |
ec160ae1 JH |
659 | if (!parse_new_style_cacheinfo(ctx->argv[1], &mode, sha1, &path)) { |
660 | if (add_cacheinfo(mode, sha1, path, 0)) | |
661 | die("git update-index: --cacheinfo cannot add %s", path); | |
662 | ctx->argv++; | |
663 | ctx->argc--; | |
664 | return 0; | |
665 | } | |
309be813 | 666 | if (ctx->argc <= 3) |
ec160ae1 | 667 | return error("option 'cacheinfo' expects <mode>,<sha1>,<path>"); |
309be813 JN |
668 | if (strtoul_ui(*++ctx->argv, 8, &mode) || |
669 | get_sha1_hex(*++ctx->argv, sha1) || | |
670 | add_cacheinfo(mode, sha1, *++ctx->argv, 0)) | |
671 | die("git update-index: --cacheinfo cannot add %s", *ctx->argv); | |
672 | ctx->argc -= 3; | |
673 | return 0; | |
674 | } | |
675 | ||
676 | static int stdin_cacheinfo_callback(struct parse_opt_ctx_t *ctx, | |
677 | const struct option *opt, int unset) | |
678 | { | |
679 | int *line_termination = opt->value; | |
680 | ||
681 | if (ctx->argc != 1) | |
682 | return error("option '%s' must be the last argument", opt->long_name); | |
683 | allow_add = allow_replace = allow_remove = 1; | |
684 | read_index_info(*line_termination); | |
685 | return 0; | |
686 | } | |
687 | ||
688 | static int stdin_callback(struct parse_opt_ctx_t *ctx, | |
689 | const struct option *opt, int unset) | |
690 | { | |
691 | int *read_from_stdin = opt->value; | |
692 | ||
693 | if (ctx->argc != 1) | |
694 | return error("option '%s' must be the last argument", opt->long_name); | |
695 | *read_from_stdin = 1; | |
696 | return 0; | |
697 | } | |
698 | ||
699 | static int unresolve_callback(struct parse_opt_ctx_t *ctx, | |
700 | const struct option *opt, int flags) | |
701 | { | |
702 | int *has_errors = opt->value; | |
703 | const char *prefix = startup_info->prefix; | |
704 | ||
705 | /* consume remaining arguments. */ | |
706 | *has_errors = do_unresolve(ctx->argc, ctx->argv, | |
707 | prefix, prefix ? strlen(prefix) : 0); | |
708 | if (*has_errors) | |
709 | active_cache_changed = 0; | |
710 | ||
711 | ctx->argv += ctx->argc - 1; | |
712 | ctx->argc = 1; | |
713 | return 0; | |
714 | } | |
715 | ||
716 | static int reupdate_callback(struct parse_opt_ctx_t *ctx, | |
717 | const struct option *opt, int flags) | |
718 | { | |
719 | int *has_errors = opt->value; | |
720 | const char *prefix = startup_info->prefix; | |
721 | ||
722 | /* consume remaining arguments. */ | |
723 | setup_work_tree(); | |
724 | *has_errors = do_reupdate(ctx->argc, ctx->argv, | |
725 | prefix, prefix ? strlen(prefix) : 0); | |
726 | if (*has_errors) | |
727 | active_cache_changed = 0; | |
728 | ||
729 | ctx->argv += ctx->argc - 1; | |
730 | ctx->argc = 1; | |
731 | return 0; | |
732 | } | |
733 | ||
a633fca0 | 734 | int cmd_update_index(int argc, const char **argv, const char *prefix) |
e83c5163 | 735 | { |
309be813 | 736 | int newfd, entries, has_errors = 0, line_termination = '\n'; |
ee1bec3d | 737 | int read_from_stdin = 0; |
ee1bec3d | 738 | int prefix_length = prefix ? strlen(prefix) : 0; |
69dec66b | 739 | int preferred_index_format = 0; |
227bdb18 | 740 | char set_executable_bit = 0; |
309be813 | 741 | struct refresh_params refresh_args = {0, &has_errors}; |
7b802b86 | 742 | int lock_error = 0; |
fefe81c9 | 743 | struct lock_file *lock_file; |
309be813 JN |
744 | struct parse_opt_ctx_t ctx; |
745 | int parseopt_state = PARSE_OPT_UNKNOWN; | |
746 | struct option options[] = { | |
747 | OPT_BIT('q', NULL, &refresh_args.flags, | |
4a4838b4 | 748 | N_("continue refresh even when index needs update"), |
309be813 JN |
749 | REFRESH_QUIET), |
750 | OPT_BIT(0, "ignore-submodules", &refresh_args.flags, | |
4a4838b4 | 751 | N_("refresh: ignore submodules"), |
309be813 JN |
752 | REFRESH_IGNORE_SUBMODULES), |
753 | OPT_SET_INT(0, "add", &allow_add, | |
4a4838b4 | 754 | N_("do not ignore new files"), 1), |
309be813 | 755 | OPT_SET_INT(0, "replace", &allow_replace, |
4a4838b4 | 756 | N_("let files replace directories and vice-versa"), 1), |
309be813 | 757 | OPT_SET_INT(0, "remove", &allow_remove, |
4a4838b4 | 758 | N_("notice files missing from worktree"), 1), |
309be813 | 759 | OPT_BIT(0, "unmerged", &refresh_args.flags, |
4a4838b4 | 760 | N_("refresh even if index contains unmerged entries"), |
309be813 JN |
761 | REFRESH_UNMERGED), |
762 | {OPTION_CALLBACK, 0, "refresh", &refresh_args, NULL, | |
4a4838b4 | 763 | N_("refresh stat information"), |
309be813 JN |
764 | PARSE_OPT_NOARG | PARSE_OPT_NONEG, |
765 | refresh_callback}, | |
766 | {OPTION_CALLBACK, 0, "really-refresh", &refresh_args, NULL, | |
4a4838b4 | 767 | N_("like --refresh, but ignore assume-unchanged setting"), |
309be813 JN |
768 | PARSE_OPT_NOARG | PARSE_OPT_NONEG, |
769 | really_refresh_callback}, | |
770 | {OPTION_LOWLEVEL_CALLBACK, 0, "cacheinfo", NULL, | |
ec160ae1 | 771 | N_("<mode>,<object>,<path>"), |
4a4838b4 | 772 | N_("add the specified entry to the index"), |
ec160ae1 | 773 | PARSE_OPT_NOARG | /* disallow --cacheinfo=<mode> form */ |
309be813 JN |
774 | PARSE_OPT_NONEG | PARSE_OPT_LITERAL_ARGHELP, |
775 | (parse_opt_cb *) cacheinfo_callback}, | |
4a4838b4 NTND |
776 | {OPTION_CALLBACK, 0, "chmod", &set_executable_bit, N_("(+/-)x"), |
777 | N_("override the executable bit of the listed files"), | |
309be813 JN |
778 | PARSE_OPT_NONEG | PARSE_OPT_LITERAL_ARGHELP, |
779 | chmod_callback}, | |
780 | {OPTION_SET_INT, 0, "assume-unchanged", &mark_valid_only, NULL, | |
4a4838b4 | 781 | N_("mark files as \"not changing\""), |
309be813 JN |
782 | PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, MARK_FLAG}, |
783 | {OPTION_SET_INT, 0, "no-assume-unchanged", &mark_valid_only, NULL, | |
4a4838b4 | 784 | N_("clear assumed-unchanged bit"), |
309be813 JN |
785 | PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, UNMARK_FLAG}, |
786 | {OPTION_SET_INT, 0, "skip-worktree", &mark_skip_worktree_only, NULL, | |
4a4838b4 | 787 | N_("mark files as \"index-only\""), |
309be813 JN |
788 | PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, MARK_FLAG}, |
789 | {OPTION_SET_INT, 0, "no-skip-worktree", &mark_skip_worktree_only, NULL, | |
4a4838b4 | 790 | N_("clear skip-worktree bit"), |
309be813 JN |
791 | PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, UNMARK_FLAG}, |
792 | OPT_SET_INT(0, "info-only", &info_only, | |
4a4838b4 | 793 | N_("add to index only; do not add content to object database"), 1), |
309be813 | 794 | OPT_SET_INT(0, "force-remove", &force_remove, |
4a4838b4 | 795 | N_("remove named paths even if present in worktree"), 1), |
309be813 | 796 | OPT_SET_INT('z', NULL, &line_termination, |
4a4838b4 | 797 | N_("with --stdin: input lines are terminated by null bytes"), '\0'), |
309be813 | 798 | {OPTION_LOWLEVEL_CALLBACK, 0, "stdin", &read_from_stdin, NULL, |
4a4838b4 | 799 | N_("read list of paths to be updated from standard input"), |
309be813 JN |
800 | PARSE_OPT_NONEG | PARSE_OPT_NOARG, |
801 | (parse_opt_cb *) stdin_callback}, | |
802 | {OPTION_LOWLEVEL_CALLBACK, 0, "index-info", &line_termination, NULL, | |
4a4838b4 | 803 | N_("add entries from standard input to the index"), |
309be813 JN |
804 | PARSE_OPT_NONEG | PARSE_OPT_NOARG, |
805 | (parse_opt_cb *) stdin_cacheinfo_callback}, | |
806 | {OPTION_LOWLEVEL_CALLBACK, 0, "unresolve", &has_errors, NULL, | |
4a4838b4 | 807 | N_("repopulate stages #2 and #3 for the listed paths"), |
309be813 JN |
808 | PARSE_OPT_NONEG | PARSE_OPT_NOARG, |
809 | (parse_opt_cb *) unresolve_callback}, | |
810 | {OPTION_LOWLEVEL_CALLBACK, 'g', "again", &has_errors, NULL, | |
4a4838b4 | 811 | N_("only update entries that differ from HEAD"), |
309be813 JN |
812 | PARSE_OPT_NONEG | PARSE_OPT_NOARG, |
813 | (parse_opt_cb *) reupdate_callback}, | |
814 | OPT_BIT(0, "ignore-missing", &refresh_args.flags, | |
4a4838b4 | 815 | N_("ignore files missing from worktree"), |
309be813 JN |
816 | REFRESH_IGNORE_MISSING), |
817 | OPT_SET_INT(0, "verbose", &verbose, | |
4a4838b4 | 818 | N_("report actions to standard output"), 1), |
309be813 | 819 | {OPTION_CALLBACK, 0, "clear-resolve-undo", NULL, NULL, |
4a4838b4 | 820 | N_("(for porcelains) forget saved unresolved conflicts"), |
309be813 JN |
821 | PARSE_OPT_NOARG | PARSE_OPT_NONEG, |
822 | resolve_undo_clear_callback}, | |
69dec66b | 823 | OPT_INTEGER(0, "index-version", &preferred_index_format, |
4a4838b4 | 824 | N_("write index in this format")), |
309be813 JN |
825 | OPT_END() |
826 | }; | |
bb233d69 | 827 | |
9c7c27ee | 828 | if (argc == 2 && !strcmp(argv[1], "-h")) |
b04d930b | 829 | usage_with_options(update_index_usage, options); |
9c7c27ee | 830 | |
ef90d6d4 | 831 | git_config(git_default_config, NULL); |
3e09cdfd | 832 | |
fefe81c9 | 833 | /* We can't free this memory, it becomes part of a linked list parsed atexit() */ |
928e47e3 | 834 | lock_file = xcalloc(1, sizeof(struct lock_file)); |
fefe81c9 | 835 | |
30ca07a2 | 836 | newfd = hold_locked_index(lock_file, 0); |
7b802b86 JH |
837 | if (newfd < 0) |
838 | lock_error = errno; | |
9614b8dc | 839 | |
e83c5163 | 840 | entries = read_cache(); |
9614b8dc | 841 | if (entries < 0) |
2de381f9 | 842 | die("cache corrupted"); |
e83c5163 | 843 | |
309be813 JN |
844 | /* |
845 | * Custom copy of parse_options() because we want to handle | |
846 | * filename arguments as they come. | |
847 | */ | |
848 | parse_options_start(&ctx, argc, argv, prefix, | |
849 | options, PARSE_OPT_STOP_AT_NON_OPTION); | |
850 | while (ctx.argc) { | |
851 | if (parseopt_state != PARSE_OPT_DONE) | |
852 | parseopt_state = parse_options_step(&ctx, options, | |
853 | update_index_usage); | |
854 | if (!ctx.argc) | |
855 | break; | |
856 | switch (parseopt_state) { | |
857 | case PARSE_OPT_HELP: | |
858 | exit(129); | |
859 | case PARSE_OPT_NON_OPTION: | |
860 | case PARSE_OPT_DONE: | |
861 | { | |
862 | const char *path = ctx.argv[0]; | |
863 | const char *p; | |
121481ab | 864 | |
309be813 JN |
865 | setup_work_tree(); |
866 | p = prefix_path(prefix, prefix_length, path); | |
6bb69077 | 867 | update_one(p); |
309be813 JN |
868 | if (set_executable_bit) |
869 | chmod_path(set_executable_bit, p); | |
6bb69077 | 870 | free((char *)p); |
309be813 JN |
871 | ctx.argc--; |
872 | ctx.argv++; | |
873 | break; | |
874 | } | |
875 | case PARSE_OPT_UNKNOWN: | |
876 | if (ctx.argv[0][1] == '-') | |
877 | error("unknown option '%s'", ctx.argv[0] + 2); | |
878 | else | |
879 | error("unknown switch '%c'", *ctx.opt); | |
880 | usage_with_options(update_index_usage, options); | |
121481ab | 881 | } |
ee1bec3d | 882 | } |
309be813 | 883 | argc = parse_options_end(&ctx); |
69dec66b JH |
884 | if (preferred_index_format) { |
885 | if (preferred_index_format < INDEX_FORMAT_LB || | |
886 | INDEX_FORMAT_UB < preferred_index_format) | |
887 | die("index-version %d not in range: %d..%d", | |
888 | preferred_index_format, | |
889 | INDEX_FORMAT_LB, INDEX_FORMAT_UB); | |
890 | ||
891 | if (the_index.version != preferred_index_format) | |
782a5ff9 | 892 | active_cache_changed |= SOMETHING_CHANGED; |
69dec66b JH |
893 | the_index.version = preferred_index_format; |
894 | } | |
309be813 | 895 | |
ee1bec3d | 896 | if (read_from_stdin) { |
f285a2d7 | 897 | struct strbuf buf = STRBUF_INIT, nbuf = STRBUF_INIT; |
7fb1011e | 898 | |
f83eafdd | 899 | setup_work_tree(); |
7fb1011e | 900 | while (strbuf_getline(&buf, stdin, line_termination) != EOF) { |
fb69a760 | 901 | const char *p; |
7fb1011e PH |
902 | if (line_termination && buf.buf[0] == '"') { |
903 | strbuf_reset(&nbuf); | |
904 | if (unquote_c_style(&nbuf, buf.buf, NULL)) | |
905 | die("line is badly quoted"); | |
906 | strbuf_swap(&buf, &nbuf); | |
907 | } | |
908 | p = prefix_path(prefix, prefix_length, buf.buf); | |
6bb69077 | 909 | update_one(p); |
fb69a760 | 910 | if (set_executable_bit) |
227bdb18 | 911 | chmod_path(set_executable_bit, p); |
6bb69077 | 912 | free((char *)p); |
9b63f501 | 913 | } |
7fb1011e | 914 | strbuf_release(&nbuf); |
e6c019d0 | 915 | strbuf_release(&buf); |
e83c5163 | 916 | } |
2bd452d3 | 917 | |
5cd5ace7 | 918 | if (active_cache_changed) { |
7b802b86 | 919 | if (newfd < 0) { |
309be813 | 920 | if (refresh_args.flags & REFRESH_QUIET) |
7b802b86 | 921 | exit(128); |
e43a6fd3 | 922 | unable_to_lock_index_die(get_index_file(), lock_error); |
7b802b86 | 923 | } |
03b86647 | 924 | if (write_locked_index(&the_index, lock_file, COMMIT_LOCK)) |
021b6e45 | 925 | die("Unable to write new index file"); |
5cd5ace7 | 926 | } |
9614b8dc | 927 | |
fefe81c9 LS |
928 | rollback_lock_file(lock_file); |
929 | ||
c4b83e61 | 930 | return has_errors ? 1 : 0; |
e83c5163 | 931 | } |