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Commit | Line | Data |
---|---|---|
7bd9bcf3 MH |
1 | /* |
2 | * The backend-independent part of the reference module. | |
3 | */ | |
4 | ||
95fc7512 | 5 | #include "cache.h" |
b2141fc1 | 6 | #include "config.h" |
7d4558c4 | 7 | #include "hashmap.h" |
697cc8ef | 8 | #include "lockfile.h" |
b05855b5 | 9 | #include "iterator.h" |
85023577 | 10 | #include "refs.h" |
4cb77009 | 11 | #include "refs/refs-internal.h" |
67541597 | 12 | #include "run-command.h" |
5e3aba33 | 13 | #include "hook.h" |
cbd53a21 | 14 | #include "object-store.h" |
cf0adba7 JH |
15 | #include "object.h" |
16 | #include "tag.h" | |
5d0bc90e | 17 | #include "submodule.h" |
17eff96b | 18 | #include "worktree.h" |
dbbcd44f | 19 | #include "strvec.h" |
23a3f0cb | 20 | #include "repository.h" |
67541597 | 21 | #include "sigchain.h" |
3581d793 | 22 | |
3dce444f RS |
23 | /* |
24 | * List of all available backends | |
25 | */ | |
26 | static struct ref_storage_be *refs_backends = &refs_be_files; | |
27 | ||
28 | static struct ref_storage_be *find_ref_storage_backend(const char *name) | |
29 | { | |
30 | struct ref_storage_be *be; | |
31 | for (be = refs_backends; be; be = be->next) | |
32 | if (!strcmp(be->name, name)) | |
33 | return be; | |
34 | return NULL; | |
35 | } | |
36 | ||
bc5fd6d3 | 37 | /* |
dde8a902 DT |
38 | * How to handle various characters in refnames: |
39 | * 0: An acceptable character for refs | |
5e650228 JH |
40 | * 1: End-of-component |
41 | * 2: ., look for a preceding . to reject .. in refs | |
42 | * 3: {, look for a preceding @ to reject @{ in refs | |
53a8555e | 43 | * 4: A bad character: ASCII control characters, and |
cd377f45 JK |
44 | * ":", "?", "[", "\", "^", "~", SP, or TAB |
45 | * 5: *, reject unless REFNAME_REFSPEC_PATTERN is set | |
dde8a902 DT |
46 | */ |
47 | static unsigned char refname_disposition[256] = { | |
5e650228 JH |
48 | 1, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, |
49 | 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, | |
cd377f45 | 50 | 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5, 0, 0, 0, 2, 1, |
5e650228 | 51 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0, 0, 0, 4, |
dde8a902 | 52 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
5e650228 JH |
53 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 4, 0, 4, 0, |
54 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
55 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 4, 4 | |
dde8a902 DT |
56 | }; |
57 | ||
58 | /* | |
59 | * Try to read one refname component from the front of refname. | |
60 | * Return the length of the component found, or -1 if the component is | |
61 | * not legal. It is legal if it is something reasonable to have under | |
62 | * ".git/refs/"; We do not like it if: | |
bc5fd6d3 | 63 | * |
1de16aec | 64 | * - it begins with ".", or |
bc5fd6d3 | 65 | * - it has double dots "..", or |
53a8555e | 66 | * - it has ASCII control characters, or |
cd377f45 JK |
67 | * - it has ":", "?", "[", "\", "^", "~", SP, or TAB anywhere, or |
68 | * - it has "*" anywhere unless REFNAME_REFSPEC_PATTERN is set, or | |
53a8555e JK |
69 | * - it ends with a "/", or |
70 | * - it ends with ".lock", or | |
71 | * - it contains a "@{" portion | |
1de16aec NTND |
72 | * |
73 | * When sanitized is not NULL, instead of rejecting the input refname | |
74 | * as an error, try to come up with a usable replacement for the input | |
75 | * refname in it. | |
bc5fd6d3 | 76 | */ |
1de16aec NTND |
77 | static int check_refname_component(const char *refname, int *flags, |
78 | struct strbuf *sanitized) | |
bc5fd6d3 MH |
79 | { |
80 | const char *cp; | |
81 | char last = '\0'; | |
1de16aec NTND |
82 | size_t component_start = 0; /* garbage - not a reasonable initial value */ |
83 | ||
84 | if (sanitized) | |
85 | component_start = sanitized->len; | |
bc5fd6d3 MH |
86 | |
87 | for (cp = refname; ; cp++) { | |
dde8a902 DT |
88 | int ch = *cp & 255; |
89 | unsigned char disp = refname_disposition[ch]; | |
1de16aec NTND |
90 | |
91 | if (sanitized && disp != 1) | |
92 | strbuf_addch(sanitized, ch); | |
93 | ||
dde8a902 | 94 | switch (disp) { |
5e650228 | 95 | case 1: |
dde8a902 | 96 | goto out; |
5e650228 | 97 | case 2: |
1de16aec NTND |
98 | if (last == '.') { /* Refname contains "..". */ |
99 | if (sanitized) | |
100 | /* collapse ".." to single "." */ | |
101 | strbuf_setlen(sanitized, sanitized->len - 1); | |
102 | else | |
103 | return -1; | |
104 | } | |
dde8a902 | 105 | break; |
5e650228 | 106 | case 3: |
1de16aec NTND |
107 | if (last == '@') { /* Refname contains "@{". */ |
108 | if (sanitized) | |
109 | sanitized->buf[sanitized->len-1] = '-'; | |
110 | else | |
111 | return -1; | |
112 | } | |
bc5fd6d3 | 113 | break; |
5e650228 | 114 | case 4: |
1de16aec NTND |
115 | /* forbidden char */ |
116 | if (sanitized) | |
117 | sanitized->buf[sanitized->len-1] = '-'; | |
118 | else | |
119 | return -1; | |
120 | break; | |
cd377f45 | 121 | case 5: |
1de16aec NTND |
122 | if (!(*flags & REFNAME_REFSPEC_PATTERN)) { |
123 | /* refspec can't be a pattern */ | |
124 | if (sanitized) | |
125 | sanitized->buf[sanitized->len-1] = '-'; | |
126 | else | |
127 | return -1; | |
128 | } | |
cd377f45 JK |
129 | |
130 | /* | |
131 | * Unset the pattern flag so that we only accept | |
132 | * a single asterisk for one side of refspec. | |
133 | */ | |
134 | *flags &= ~ REFNAME_REFSPEC_PATTERN; | |
135 | break; | |
dde8a902 | 136 | } |
bc5fd6d3 MH |
137 | last = ch; |
138 | } | |
dde8a902 | 139 | out: |
bc5fd6d3 | 140 | if (cp == refname) |
dac529e4 | 141 | return 0; /* Component has zero length. */ |
1de16aec NTND |
142 | |
143 | if (refname[0] == '.') { /* Component starts with '.'. */ | |
144 | if (sanitized) | |
145 | sanitized->buf[component_start] = '-'; | |
146 | else | |
147 | return -1; | |
148 | } | |
7108ad23 | 149 | if (cp - refname >= LOCK_SUFFIX_LEN && |
1de16aec NTND |
150 | !memcmp(cp - LOCK_SUFFIX_LEN, LOCK_SUFFIX, LOCK_SUFFIX_LEN)) { |
151 | if (!sanitized) | |
152 | return -1; | |
153 | /* Refname ends with ".lock". */ | |
154 | while (strbuf_strip_suffix(sanitized, LOCK_SUFFIX)) { | |
155 | /* try again in case we have .lock.lock */ | |
156 | } | |
157 | } | |
bc5fd6d3 MH |
158 | return cp - refname; |
159 | } | |
160 | ||
1de16aec NTND |
161 | static int check_or_sanitize_refname(const char *refname, int flags, |
162 | struct strbuf *sanitized) | |
bc5fd6d3 MH |
163 | { |
164 | int component_len, component_count = 0; | |
165 | ||
1de16aec | 166 | if (!strcmp(refname, "@")) { |
9ba89f48 | 167 | /* Refname is a single character '@'. */ |
1de16aec NTND |
168 | if (sanitized) |
169 | strbuf_addch(sanitized, '-'); | |
170 | else | |
171 | return -1; | |
172 | } | |
9ba89f48 | 173 | |
bc5fd6d3 | 174 | while (1) { |
1de16aec NTND |
175 | if (sanitized && sanitized->len) |
176 | strbuf_complete(sanitized, '/'); | |
177 | ||
bc5fd6d3 | 178 | /* We are at the start of a path component. */ |
1de16aec NTND |
179 | component_len = check_refname_component(refname, &flags, |
180 | sanitized); | |
181 | if (sanitized && component_len == 0) | |
182 | ; /* OK, omit empty component */ | |
183 | else if (component_len <= 0) | |
cd377f45 JK |
184 | return -1; |
185 | ||
bc5fd6d3 MH |
186 | component_count++; |
187 | if (refname[component_len] == '\0') | |
188 | break; | |
189 | /* Skip to next component. */ | |
190 | refname += component_len + 1; | |
191 | } | |
192 | ||
1de16aec NTND |
193 | if (refname[component_len - 1] == '.') { |
194 | /* Refname ends with '.'. */ | |
195 | if (sanitized) | |
196 | ; /* omit ending dot */ | |
197 | else | |
198 | return -1; | |
199 | } | |
bc5fd6d3 MH |
200 | if (!(flags & REFNAME_ALLOW_ONELEVEL) && component_count < 2) |
201 | return -1; /* Refname has only one component. */ | |
202 | return 0; | |
203 | } | |
204 | ||
1de16aec NTND |
205 | int check_refname_format(const char *refname, int flags) |
206 | { | |
207 | return check_or_sanitize_refname(refname, flags, NULL); | |
208 | } | |
209 | ||
210 | void sanitize_refname_component(const char *refname, struct strbuf *out) | |
211 | { | |
212 | if (check_or_sanitize_refname(refname, REFNAME_ALLOW_ONELEVEL, out)) | |
213 | BUG("sanitizing refname '%s' check returned error", refname); | |
214 | } | |
215 | ||
4cb77009 | 216 | int refname_is_safe(const char *refname) |
d0f810f0 | 217 | { |
39950fef MH |
218 | const char *rest; |
219 | ||
220 | if (skip_prefix(refname, "refs/", &rest)) { | |
d0f810f0 RS |
221 | char *buf; |
222 | int result; | |
e40f3557 MH |
223 | size_t restlen = strlen(rest); |
224 | ||
225 | /* rest must not be empty, or start or end with "/" */ | |
226 | if (!restlen || *rest == '/' || rest[restlen - 1] == '/') | |
227 | return 0; | |
d0f810f0 | 228 | |
d0f810f0 RS |
229 | /* |
230 | * Does the refname try to escape refs/? | |
231 | * For example: refs/foo/../bar is safe but refs/foo/../../bar | |
232 | * is not. | |
233 | */ | |
e40f3557 MH |
234 | buf = xmallocz(restlen); |
235 | result = !normalize_path_copy(buf, rest) && !strcmp(buf, rest); | |
d0f810f0 RS |
236 | free(buf); |
237 | return result; | |
238 | } | |
35db25c6 MH |
239 | |
240 | do { | |
d0f810f0 RS |
241 | if (!isupper(*refname) && *refname != '_') |
242 | return 0; | |
243 | refname++; | |
35db25c6 | 244 | } while (*refname); |
d0f810f0 RS |
245 | return 1; |
246 | } | |
247 | ||
67be7c5a MH |
248 | /* |
249 | * Return true if refname, which has the specified oid and flags, can | |
250 | * be resolved to an object in the database. If the referred-to object | |
251 | * does not exist, emit a warning and return false. | |
252 | */ | |
253 | int ref_resolves_to_object(const char *refname, | |
9bc45a28 | 254 | struct repository *repo, |
67be7c5a MH |
255 | const struct object_id *oid, |
256 | unsigned int flags) | |
257 | { | |
258 | if (flags & REF_ISBROKEN) | |
259 | return 0; | |
9bc45a28 | 260 | if (!repo_has_object_file(repo, oid)) { |
661558f0 | 261 | error(_("%s does not point to a valid object!"), refname); |
67be7c5a MH |
262 | return 0; |
263 | } | |
264 | return 1; | |
265 | } | |
266 | ||
7d2df051 NTND |
267 | char *refs_resolve_refdup(struct ref_store *refs, |
268 | const char *refname, int resolve_flags, | |
0f2dc722 | 269 | struct object_id *oid, int *flags) |
7d2df051 NTND |
270 | { |
271 | const char *result; | |
272 | ||
273 | result = refs_resolve_ref_unsafe(refs, refname, resolve_flags, | |
ce14de03 | 274 | oid, flags); |
7d2df051 NTND |
275 | return xstrdup_or_null(result); |
276 | } | |
277 | ||
7bd9bcf3 | 278 | char *resolve_refdup(const char *refname, int resolve_flags, |
0f2dc722 | 279 | struct object_id *oid, int *flags) |
e1e22e37 | 280 | { |
23a3f0cb | 281 | return refs_resolve_refdup(get_main_ref_store(the_repository), |
7d2df051 | 282 | refname, resolve_flags, |
0f2dc722 | 283 | oid, flags); |
cddc4258 MH |
284 | } |
285 | ||
7bd9bcf3 MH |
286 | /* The argument to filter_refs */ |
287 | struct ref_filter { | |
288 | const char *pattern; | |
9ab9b5df | 289 | const char *prefix; |
7bd9bcf3 MH |
290 | each_ref_fn *fn; |
291 | void *cb_data; | |
292 | }; | |
432ad41e | 293 | |
76887df0 | 294 | int read_ref_full(const char *refname, int resolve_flags, struct object_id *oid, int *flags) |
732134ed | 295 | { |
76887df0 ÆAB |
296 | struct ref_store *refs = get_main_ref_store(the_repository); |
297 | ||
f1da24ca | 298 | if (refs_resolve_ref_unsafe(refs, refname, resolve_flags, |
ce14de03 | 299 | oid, flags)) |
7bd9bcf3 MH |
300 | return 0; |
301 | return -1; | |
732134ed MH |
302 | } |
303 | ||
34c290a6 | 304 | int read_ref(const char *refname, struct object_id *oid) |
cddc4258 | 305 | { |
34c290a6 | 306 | return read_ref_full(refname, RESOLVE_REF_READING, oid, NULL); |
c774aab9 JP |
307 | } |
308 | ||
3f9f1acc | 309 | int refs_ref_exists(struct ref_store *refs, const char *refname) |
b3cd33d0 | 310 | { |
f1da24ca | 311 | return !!refs_resolve_ref_unsafe(refs, refname, RESOLVE_REF_READING, |
ce14de03 | 312 | NULL, NULL); |
b3cd33d0 NTND |
313 | } |
314 | ||
7bd9bcf3 | 315 | int ref_exists(const char *refname) |
bc5fd6d3 | 316 | { |
b3cd33d0 | 317 | return refs_ref_exists(get_main_ref_store(the_repository), refname); |
bc5fd6d3 MH |
318 | } |
319 | ||
7bd9bcf3 MH |
320 | static int filter_refs(const char *refname, const struct object_id *oid, |
321 | int flags, void *data) | |
432ad41e | 322 | { |
7bd9bcf3 MH |
323 | struct ref_filter *filter = (struct ref_filter *)data; |
324 | ||
55d34269 | 325 | if (wildmatch(filter->pattern, refname, 0)) |
7bd9bcf3 | 326 | return 0; |
9ab9b5df RA |
327 | if (filter->prefix) |
328 | skip_prefix(refname, filter->prefix, &refname); | |
7bd9bcf3 | 329 | return filter->fn(refname, oid, flags, filter->cb_data); |
432ad41e MH |
330 | } |
331 | ||
ac2ed0d7 | 332 | enum peel_status peel_object(const struct object_id *name, struct object_id *oid) |
c774aab9 | 333 | { |
45a187cc | 334 | struct object *o = lookup_unknown_object(the_repository, name); |
c774aab9 | 335 | |
7bd9bcf3 | 336 | if (o->type == OBJ_NONE) { |
0df8e965 | 337 | int type = oid_object_info(the_repository, name, NULL); |
6da43d93 | 338 | if (type < 0 || !object_as_type(o, type, 0)) |
7bd9bcf3 MH |
339 | return PEEL_INVALID; |
340 | } | |
bc5fd6d3 | 341 | |
7bd9bcf3 MH |
342 | if (o->type != OBJ_TAG) |
343 | return PEEL_NON_TAG; | |
e1980c9d | 344 | |
7bd9bcf3 MH |
345 | o = deref_tag_noverify(o); |
346 | if (!o) | |
347 | return PEEL_INVALID; | |
348 | ||
ac2ed0d7 | 349 | oidcpy(oid, &o->oid); |
7bd9bcf3 | 350 | return PEEL_PEELED; |
e1980c9d JH |
351 | } |
352 | ||
7bd9bcf3 MH |
353 | struct warn_if_dangling_data { |
354 | FILE *fp; | |
355 | const char *refname; | |
356 | const struct string_list *refnames; | |
357 | const char *msg_fmt; | |
358 | }; | |
bc5fd6d3 | 359 | |
7bd9bcf3 MH |
360 | static int warn_if_dangling_symref(const char *refname, const struct object_id *oid, |
361 | int flags, void *cb_data) | |
362 | { | |
363 | struct warn_if_dangling_data *d = cb_data; | |
364 | const char *resolves_to; | |
bc5fd6d3 | 365 | |
7bd9bcf3 MH |
366 | if (!(flags & REF_ISSYMREF)) |
367 | return 0; | |
bc5fd6d3 | 368 | |
744c040b | 369 | resolves_to = resolve_ref_unsafe(refname, 0, NULL, NULL); |
7bd9bcf3 MH |
370 | if (!resolves_to |
371 | || (d->refname | |
372 | ? strcmp(resolves_to, d->refname) | |
373 | : !string_list_has_string(d->refnames, resolves_to))) { | |
374 | return 0; | |
375 | } | |
bc5fd6d3 | 376 | |
7bd9bcf3 MH |
377 | fprintf(d->fp, d->msg_fmt, refname); |
378 | fputc('\n', d->fp); | |
379 | return 0; | |
bc5fd6d3 MH |
380 | } |
381 | ||
7bd9bcf3 | 382 | void warn_dangling_symref(FILE *fp, const char *msg_fmt, const char *refname) |
f348ac92 | 383 | { |
7bd9bcf3 MH |
384 | struct warn_if_dangling_data data; |
385 | ||
386 | data.fp = fp; | |
387 | data.refname = refname; | |
388 | data.refnames = NULL; | |
389 | data.msg_fmt = msg_fmt; | |
390 | for_each_rawref(warn_if_dangling_symref, &data); | |
f348ac92 MH |
391 | } |
392 | ||
7bd9bcf3 | 393 | void warn_dangling_symrefs(FILE *fp, const char *msg_fmt, const struct string_list *refnames) |
432ad41e | 394 | { |
7bd9bcf3 | 395 | struct warn_if_dangling_data data; |
432ad41e | 396 | |
7bd9bcf3 MH |
397 | data.fp = fp; |
398 | data.refname = NULL; | |
399 | data.refnames = refnames; | |
400 | data.msg_fmt = msg_fmt; | |
401 | for_each_rawref(warn_if_dangling_symref, &data); | |
432ad41e MH |
402 | } |
403 | ||
7d2df051 NTND |
404 | int refs_for_each_tag_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
405 | { | |
406 | return refs_for_each_ref_in(refs, "refs/tags/", fn, cb_data); | |
407 | } | |
408 | ||
7bd9bcf3 | 409 | int for_each_tag_ref(each_ref_fn fn, void *cb_data) |
432ad41e | 410 | { |
23a3f0cb | 411 | return refs_for_each_tag_ref(get_main_ref_store(the_repository), fn, cb_data); |
432ad41e MH |
412 | } |
413 | ||
7d2df051 NTND |
414 | int refs_for_each_branch_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
415 | { | |
416 | return refs_for_each_ref_in(refs, "refs/heads/", fn, cb_data); | |
432ad41e MH |
417 | } |
418 | ||
7bd9bcf3 | 419 | int for_each_branch_ref(each_ref_fn fn, void *cb_data) |
432ad41e | 420 | { |
23a3f0cb | 421 | return refs_for_each_branch_ref(get_main_ref_store(the_repository), fn, cb_data); |
432ad41e MH |
422 | } |
423 | ||
7d2df051 NTND |
424 | int refs_for_each_remote_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
425 | { | |
426 | return refs_for_each_ref_in(refs, "refs/remotes/", fn, cb_data); | |
202a56a9 | 427 | } |
432ad41e | 428 | |
7bd9bcf3 | 429 | int for_each_remote_ref(each_ref_fn fn, void *cb_data) |
e9c4c111 | 430 | { |
23a3f0cb | 431 | return refs_for_each_remote_ref(get_main_ref_store(the_repository), fn, cb_data); |
202a56a9 MH |
432 | } |
433 | ||
7bd9bcf3 MH |
434 | int head_ref_namespaced(each_ref_fn fn, void *cb_data) |
435 | { | |
436 | struct strbuf buf = STRBUF_INIT; | |
437 | int ret = 0; | |
438 | struct object_id oid; | |
439 | int flag; | |
c774aab9 | 440 | |
7bd9bcf3 | 441 | strbuf_addf(&buf, "%sHEAD", get_git_namespace()); |
34c290a6 | 442 | if (!read_ref_full(buf.buf, RESOLVE_REF_READING, &oid, &flag)) |
7bd9bcf3 MH |
443 | ret = fn(buf.buf, &oid, flag, cb_data); |
444 | strbuf_release(&buf); | |
c774aab9 | 445 | |
7bd9bcf3 | 446 | return ret; |
e9c4c111 | 447 | } |
c774aab9 | 448 | |
65516f58 RA |
449 | void normalize_glob_ref(struct string_list_item *item, const char *prefix, |
450 | const char *pattern) | |
451 | { | |
452 | struct strbuf normalized_pattern = STRBUF_INIT; | |
453 | ||
454 | if (*pattern == '/') | |
455 | BUG("pattern must not start with '/'"); | |
456 | ||
457 | if (prefix) { | |
458 | strbuf_addstr(&normalized_pattern, prefix); | |
459 | } | |
460 | else if (!starts_with(pattern, "refs/")) | |
461 | strbuf_addstr(&normalized_pattern, "refs/"); | |
462 | strbuf_addstr(&normalized_pattern, pattern); | |
463 | strbuf_strip_suffix(&normalized_pattern, "/"); | |
464 | ||
465 | item->string = strbuf_detach(&normalized_pattern, NULL); | |
466 | item->util = has_glob_specials(pattern) ? NULL : item->string; | |
467 | strbuf_release(&normalized_pattern); | |
468 | } | |
469 | ||
7bd9bcf3 MH |
470 | int for_each_glob_ref_in(each_ref_fn fn, const char *pattern, |
471 | const char *prefix, void *cb_data) | |
662428f4 | 472 | { |
7bd9bcf3 MH |
473 | struct strbuf real_pattern = STRBUF_INIT; |
474 | struct ref_filter filter; | |
475 | int ret; | |
d08bae7e | 476 | |
59556548 | 477 | if (!prefix && !starts_with(pattern, "refs/")) |
d08bae7e | 478 | strbuf_addstr(&real_pattern, "refs/"); |
b09fe971 IL |
479 | else if (prefix) |
480 | strbuf_addstr(&real_pattern, prefix); | |
d08bae7e IL |
481 | strbuf_addstr(&real_pattern, pattern); |
482 | ||
894a9d33 | 483 | if (!has_glob_specials(pattern)) { |
9517e6b8 | 484 | /* Append implied '/' '*' if not present. */ |
00b6c178 | 485 | strbuf_complete(&real_pattern, '/'); |
d08bae7e IL |
486 | /* No need to check for '*', there is none. */ |
487 | strbuf_addch(&real_pattern, '*'); | |
488 | } | |
489 | ||
490 | filter.pattern = real_pattern.buf; | |
9ab9b5df | 491 | filter.prefix = prefix; |
d08bae7e IL |
492 | filter.fn = fn; |
493 | filter.cb_data = cb_data; | |
494 | ret = for_each_ref(filter_refs, &filter); | |
495 | ||
496 | strbuf_release(&real_pattern); | |
497 | return ret; | |
498 | } | |
499 | ||
b09fe971 IL |
500 | int for_each_glob_ref(each_ref_fn fn, const char *pattern, void *cb_data) |
501 | { | |
502 | return for_each_glob_ref_in(fn, pattern, NULL, cb_data); | |
503 | } | |
504 | ||
4577e483 | 505 | const char *prettify_refname(const char *name) |
a9c37a72 | 506 | { |
3e5b36c6 SG |
507 | if (skip_prefix(name, "refs/heads/", &name) || |
508 | skip_prefix(name, "refs/tags/", &name) || | |
509 | skip_prefix(name, "refs/remotes/", &name)) | |
510 | ; /* nothing */ | |
511 | return name; | |
a9c37a72 DB |
512 | } |
513 | ||
54457fe5 | 514 | static const char *ref_rev_parse_rules[] = { |
79803322 SP |
515 | "%.*s", |
516 | "refs/%.*s", | |
517 | "refs/tags/%.*s", | |
518 | "refs/heads/%.*s", | |
519 | "refs/remotes/%.*s", | |
520 | "refs/remotes/%.*s/HEAD", | |
521 | NULL | |
522 | }; | |
523 | ||
60650a48 JH |
524 | #define NUM_REV_PARSE_RULES (ARRAY_SIZE(ref_rev_parse_rules) - 1) |
525 | ||
526 | /* | |
527 | * Is it possible that the caller meant full_name with abbrev_name? | |
528 | * If so return a non-zero value to signal "yes"; the magnitude of | |
529 | * the returned value gives the precedence used for disambiguation. | |
530 | * | |
531 | * If abbrev_name cannot mean full_name, return 0. | |
532 | */ | |
54457fe5 | 533 | int refname_match(const char *abbrev_name, const char *full_name) |
79803322 SP |
534 | { |
535 | const char **p; | |
536 | const int abbrev_name_len = strlen(abbrev_name); | |
60650a48 | 537 | const int num_rules = NUM_REV_PARSE_RULES; |
79803322 | 538 | |
60650a48 JH |
539 | for (p = ref_rev_parse_rules; *p; p++) |
540 | if (!strcmp(full_name, mkpath(*p, abbrev_name_len, abbrev_name))) | |
541 | return &ref_rev_parse_rules[num_rules] - p; | |
79803322 SP |
542 | |
543 | return 0; | |
544 | } | |
545 | ||
b4be7410 BW |
546 | /* |
547 | * Given a 'prefix' expand it by the rules in 'ref_rev_parse_rules' and add | |
548 | * the results to 'prefixes' | |
549 | */ | |
c972bf4c | 550 | void expand_ref_prefix(struct strvec *prefixes, const char *prefix) |
b4be7410 BW |
551 | { |
552 | const char **p; | |
553 | int len = strlen(prefix); | |
554 | ||
555 | for (p = ref_rev_parse_rules; *p; p++) | |
c972bf4c | 556 | strvec_pushf(prefixes, *p, len, prefix); |
b4be7410 BW |
557 | } |
558 | ||
675704c7 JS |
559 | static const char default_branch_name_advice[] = N_( |
560 | "Using '%s' as the name for the initial branch. This default branch name\n" | |
561 | "is subject to change. To configure the initial branch name to use in all\n" | |
562 | "of your new repositories, which will suppress this warning, call:\n" | |
563 | "\n" | |
564 | "\tgit config --global init.defaultBranch <name>\n" | |
565 | "\n" | |
566 | "Names commonly chosen instead of 'master' are 'main', 'trunk' and\n" | |
567 | "'development'. The just-created branch can be renamed via this command:\n" | |
568 | "\n" | |
569 | "\tgit branch -m <name>\n" | |
570 | ); | |
571 | ||
cc0f13c5 | 572 | char *repo_default_branch_name(struct repository *r, int quiet) |
8747ebb7 DGW |
573 | { |
574 | const char *config_key = "init.defaultbranch"; | |
575 | const char *config_display_key = "init.defaultBranch"; | |
576 | char *ret = NULL, *full_ref; | |
704fed9e | 577 | const char *env = getenv("GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME"); |
8747ebb7 | 578 | |
704fed9e JS |
579 | if (env && *env) |
580 | ret = xstrdup(env); | |
581 | else if (repo_config_get_string(r, config_key, &ret) < 0) | |
8747ebb7 DGW |
582 | die(_("could not retrieve `%s`"), config_display_key); |
583 | ||
675704c7 | 584 | if (!ret) { |
8747ebb7 | 585 | ret = xstrdup("master"); |
675704c7 JS |
586 | if (!quiet) |
587 | advise(_(default_branch_name_advice), ret); | |
588 | } | |
8747ebb7 DGW |
589 | |
590 | full_ref = xstrfmt("refs/heads/%s", ret); | |
591 | if (check_refname_format(full_ref, 0)) | |
592 | die(_("invalid branch name: %s = %s"), config_display_key, ret); | |
593 | free(full_ref); | |
594 | ||
595 | return ret; | |
596 | } | |
597 | ||
cc0f13c5 | 598 | const char *git_default_branch_name(int quiet) |
8747ebb7 DGW |
599 | { |
600 | static char *ret; | |
601 | ||
602 | if (!ret) | |
cc0f13c5 | 603 | ret = repo_default_branch_name(the_repository, quiet); |
8747ebb7 DGW |
604 | |
605 | return ret; | |
606 | } | |
607 | ||
ff74f7f1 JH |
608 | /* |
609 | * *string and *len will only be substituted, and *string returned (for | |
610 | * later free()ing) if the string passed in is a magic short-hand form | |
611 | * to name a branch. | |
612 | */ | |
8f56e9d4 | 613 | static char *substitute_branch_name(struct repository *r, |
f24c30e0 JT |
614 | const char **string, int *len, |
615 | int nonfatal_dangling_mark) | |
ff74f7f1 JH |
616 | { |
617 | struct strbuf buf = STRBUF_INIT; | |
f24c30e0 JT |
618 | struct interpret_branch_name_options options = { |
619 | .nonfatal_dangling_mark = nonfatal_dangling_mark | |
620 | }; | |
a4f66a78 | 621 | int ret = repo_interpret_branch_name(r, *string, *len, &buf, &options); |
ff74f7f1 JH |
622 | |
623 | if (ret == *len) { | |
624 | size_t size; | |
625 | *string = strbuf_detach(&buf, &size); | |
626 | *len = size; | |
627 | return (char *)*string; | |
628 | } | |
629 | ||
630 | return NULL; | |
631 | } | |
632 | ||
d8984c53 | 633 | int repo_dwim_ref(struct repository *r, const char *str, int len, |
f24c30e0 | 634 | struct object_id *oid, char **ref, int nonfatal_dangling_mark) |
ff74f7f1 | 635 | { |
f24c30e0 JT |
636 | char *last_branch = substitute_branch_name(r, &str, &len, |
637 | nonfatal_dangling_mark); | |
d8984c53 | 638 | int refs_found = expand_ref(r, str, len, oid, ref); |
41da7111 NTND |
639 | free(last_branch); |
640 | return refs_found; | |
641 | } | |
642 | ||
0b1dbf53 NTND |
643 | int expand_ref(struct repository *repo, const char *str, int len, |
644 | struct object_id *oid, char **ref) | |
41da7111 | 645 | { |
ff74f7f1 JH |
646 | const char **p, *r; |
647 | int refs_found = 0; | |
6cd4a898 | 648 | struct strbuf fullref = STRBUF_INIT; |
ff74f7f1 JH |
649 | |
650 | *ref = NULL; | |
651 | for (p = ref_rev_parse_rules; *p; p++) { | |
cca5fa64 | 652 | struct object_id oid_from_ref; |
653 | struct object_id *this_result; | |
ff74f7f1 | 654 | int flag; |
6582bd31 | 655 | struct ref_store *refs = get_main_ref_store(repo); |
ff74f7f1 | 656 | |
cca5fa64 | 657 | this_result = refs_found ? &oid_from_ref : oid; |
6cd4a898 JK |
658 | strbuf_reset(&fullref); |
659 | strbuf_addf(&fullref, *p, len, str); | |
f1da24ca | 660 | r = refs_resolve_ref_unsafe(refs, fullref.buf, |
6582bd31 | 661 | RESOLVE_REF_READING, |
ce14de03 | 662 | this_result, &flag); |
ff74f7f1 JH |
663 | if (r) { |
664 | if (!refs_found++) | |
665 | *ref = xstrdup(r); | |
666 | if (!warn_ambiguous_refs) | |
667 | break; | |
6cd4a898 | 668 | } else if ((flag & REF_ISSYMREF) && strcmp(fullref.buf, "HEAD")) { |
661558f0 | 669 | warning(_("ignoring dangling symref %s"), fullref.buf); |
6cd4a898 | 670 | } else if ((flag & REF_ISBROKEN) && strchr(fullref.buf, '/')) { |
661558f0 | 671 | warning(_("ignoring broken ref %s"), fullref.buf); |
55956350 | 672 | } |
ff74f7f1 | 673 | } |
6cd4a898 | 674 | strbuf_release(&fullref); |
ff74f7f1 JH |
675 | return refs_found; |
676 | } | |
677 | ||
56700903 NTND |
678 | int repo_dwim_log(struct repository *r, const char *str, int len, |
679 | struct object_id *oid, char **log) | |
ff74f7f1 | 680 | { |
56700903 | 681 | struct ref_store *refs = get_main_ref_store(r); |
f24c30e0 | 682 | char *last_branch = substitute_branch_name(r, &str, &len, 0); |
ff74f7f1 JH |
683 | const char **p; |
684 | int logs_found = 0; | |
6cd4a898 | 685 | struct strbuf path = STRBUF_INIT; |
ff74f7f1 JH |
686 | |
687 | *log = NULL; | |
688 | for (p = ref_rev_parse_rules; *p; p++) { | |
334dc52f | 689 | struct object_id hash; |
ff74f7f1 JH |
690 | const char *ref, *it; |
691 | ||
6cd4a898 JK |
692 | strbuf_reset(&path); |
693 | strbuf_addf(&path, *p, len, str); | |
56700903 NTND |
694 | ref = refs_resolve_ref_unsafe(refs, path.buf, |
695 | RESOLVE_REF_READING, | |
ce14de03 | 696 | oid ? &hash : NULL, NULL); |
ff74f7f1 JH |
697 | if (!ref) |
698 | continue; | |
56700903 | 699 | if (refs_reflog_exists(refs, path.buf)) |
6cd4a898 | 700 | it = path.buf; |
56700903 NTND |
701 | else if (strcmp(ref, path.buf) && |
702 | refs_reflog_exists(refs, ref)) | |
ff74f7f1 JH |
703 | it = ref; |
704 | else | |
705 | continue; | |
706 | if (!logs_found++) { | |
707 | *log = xstrdup(it); | |
6f45ec88 ÆAB |
708 | if (oid) |
709 | oidcpy(oid, &hash); | |
ff74f7f1 | 710 | } |
7bd9bcf3 MH |
711 | if (!warn_ambiguous_refs) |
712 | break; | |
c0277d15 | 713 | } |
6cd4a898 | 714 | strbuf_release(&path); |
7bd9bcf3 MH |
715 | free(last_branch); |
716 | return logs_found; | |
2ddb5d17 BK |
717 | } |
718 | ||
56700903 NTND |
719 | int dwim_log(const char *str, int len, struct object_id *oid, char **log) |
720 | { | |
721 | return repo_dwim_log(the_repository, str, len, oid, log); | |
722 | } | |
723 | ||
266b1827 DT |
724 | static int is_per_worktree_ref(const char *refname) |
725 | { | |
55dd8b91 HWN |
726 | return starts_with(refname, "refs/worktree/") || |
727 | starts_with(refname, "refs/bisect/") || | |
728 | starts_with(refname, "refs/rewritten/"); | |
266b1827 DT |
729 | } |
730 | ||
731 | static int is_pseudoref_syntax(const char *refname) | |
732 | { | |
733 | const char *c; | |
734 | ||
735 | for (c = refname; *c; c++) { | |
736 | if (!isupper(*c) && *c != '-' && *c != '_') | |
737 | return 0; | |
738 | } | |
739 | ||
740 | return 1; | |
741 | } | |
742 | ||
3a3b9d8c NTND |
743 | static int is_main_pseudoref_syntax(const char *refname) |
744 | { | |
745 | return skip_prefix(refname, "main-worktree/", &refname) && | |
746 | *refname && | |
747 | is_pseudoref_syntax(refname); | |
748 | } | |
749 | ||
750 | static int is_other_pseudoref_syntax(const char *refname) | |
751 | { | |
752 | if (!skip_prefix(refname, "worktrees/", &refname)) | |
753 | return 0; | |
754 | refname = strchr(refname, '/'); | |
755 | if (!refname || !refname[1]) | |
756 | return 0; | |
757 | return is_pseudoref_syntax(refname + 1); | |
758 | } | |
759 | ||
266b1827 DT |
760 | enum ref_type ref_type(const char *refname) |
761 | { | |
762 | if (is_per_worktree_ref(refname)) | |
763 | return REF_TYPE_PER_WORKTREE; | |
764 | if (is_pseudoref_syntax(refname)) | |
765 | return REF_TYPE_PSEUDOREF; | |
3a3b9d8c NTND |
766 | if (is_main_pseudoref_syntax(refname)) |
767 | return REF_TYPE_MAIN_PSEUDOREF; | |
768 | if (is_other_pseudoref_syntax(refname)) | |
769 | return REF_TYPE_OTHER_PSEUDOREF; | |
5c79f74f | 770 | return REF_TYPE_NORMAL; |
266b1827 DT |
771 | } |
772 | ||
4ff0f01c MH |
773 | long get_files_ref_lock_timeout_ms(void) |
774 | { | |
775 | static int configured = 0; | |
776 | ||
777 | /* The default timeout is 100 ms: */ | |
778 | static int timeout_ms = 100; | |
779 | ||
780 | if (!configured) { | |
781 | git_config_get_int("core.filesreflocktimeout", &timeout_ms); | |
782 | configured = 1; | |
783 | } | |
784 | ||
785 | return timeout_ms; | |
786 | } | |
787 | ||
c0fe4e8b NTND |
788 | int refs_delete_ref(struct ref_store *refs, const char *msg, |
789 | const char *refname, | |
2616a5e5 | 790 | const struct object_id *old_oid, |
c0fe4e8b | 791 | unsigned int flags) |
41b625b0 | 792 | { |
7521cc46 | 793 | struct ref_transaction *transaction; |
a4c653df | 794 | struct strbuf err = STRBUF_INIT; |
8b5157e4 | 795 | |
fbe73f61 | 796 | transaction = ref_store_transaction_begin(refs, 0, &err); |
7521cc46 | 797 | if (!transaction || |
89f3bbdd | 798 | ref_transaction_delete(transaction, refname, old_oid, |
755b49ae | 799 | flags, msg, &err) || |
db7516ab | 800 | ref_transaction_commit(transaction, &err)) { |
7521cc46 RS |
801 | error("%s", err.buf); |
802 | ref_transaction_free(transaction); | |
803 | strbuf_release(&err); | |
c0277d15 | 804 | return 1; |
41b625b0 | 805 | } |
7bd9bcf3 MH |
806 | ref_transaction_free(transaction); |
807 | strbuf_release(&err); | |
b531394d BC |
808 | return 0; |
809 | } | |
41b625b0 | 810 | |
c0fe4e8b | 811 | int delete_ref(const char *msg, const char *refname, |
2616a5e5 | 812 | const struct object_id *old_oid, unsigned int flags) |
c0fe4e8b | 813 | { |
23a3f0cb | 814 | return refs_delete_ref(get_main_ref_store(the_repository), msg, refname, |
2616a5e5 | 815 | old_oid, flags); |
c0fe4e8b NTND |
816 | } |
817 | ||
523fa69c | 818 | static void copy_reflog_msg(struct strbuf *sb, const char *msg) |
0ec29a47 | 819 | { |
0ec29a47 JH |
820 | char c; |
821 | int wasspace = 1; | |
8b5157e4 | 822 | |
0ec29a47 JH |
823 | while ((c = *msg++)) { |
824 | if (wasspace && isspace(c)) | |
825 | continue; | |
826 | wasspace = isspace(c); | |
827 | if (wasspace) | |
828 | c = ' '; | |
80a6c207 | 829 | strbuf_addch(sb, c); |
a4c653df | 830 | } |
80a6c207 | 831 | strbuf_rtrim(sb); |
0ec29a47 | 832 | } |
8b5157e4 | 833 | |
523fa69c JH |
834 | static char *normalize_reflog_message(const char *msg) |
835 | { | |
836 | struct strbuf sb = STRBUF_INIT; | |
837 | ||
838 | if (msg && *msg) | |
839 | copy_reflog_msg(&sb, msg); | |
840 | return strbuf_detach(&sb, NULL); | |
841 | } | |
842 | ||
4cb77009 | 843 | int should_autocreate_reflog(const char *refname) |
4e2bef57 | 844 | { |
341fb286 CW |
845 | switch (log_all_ref_updates) { |
846 | case LOG_REFS_ALWAYS: | |
847 | return 1; | |
848 | case LOG_REFS_NORMAL: | |
849 | return starts_with(refname, "refs/heads/") || | |
850 | starts_with(refname, "refs/remotes/") || | |
851 | starts_with(refname, "refs/notes/") || | |
852 | !strcmp(refname, "HEAD"); | |
853 | default: | |
4e2bef57 | 854 | return 0; |
341fb286 | 855 | } |
4e2bef57 DT |
856 | } |
857 | ||
e7e0f26e | 858 | int is_branch(const char *refname) |
c3b0dec5 | 859 | { |
59556548 | 860 | return !strcmp(refname, "HEAD") || starts_with(refname, "refs/heads/"); |
41b625b0 NP |
861 | } |
862 | ||
4207ed28 RS |
863 | struct read_ref_at_cb { |
864 | const char *refname; | |
dddbad72 | 865 | timestamp_t at_time; |
4207ed28 RS |
866 | int cnt; |
867 | int reccnt; | |
8eb36d94 | 868 | struct object_id *oid; |
4207ed28 RS |
869 | int found_it; |
870 | ||
8eb36d94 | 871 | struct object_id ooid; |
872 | struct object_id noid; | |
4207ed28 | 873 | int tz; |
dddbad72 | 874 | timestamp_t date; |
4207ed28 | 875 | char **msg; |
dddbad72 | 876 | timestamp_t *cutoff_time; |
4207ed28 RS |
877 | int *cutoff_tz; |
878 | int *cutoff_cnt; | |
879 | }; | |
880 | ||
95c2a718 DL |
881 | static void set_read_ref_cutoffs(struct read_ref_at_cb *cb, |
882 | timestamp_t timestamp, int tz, const char *message) | |
883 | { | |
884 | if (cb->msg) | |
885 | *cb->msg = xstrdup(message); | |
886 | if (cb->cutoff_time) | |
887 | *cb->cutoff_time = timestamp; | |
888 | if (cb->cutoff_tz) | |
889 | *cb->cutoff_tz = tz; | |
890 | if (cb->cutoff_cnt) | |
891 | *cb->cutoff_cnt = cb->reccnt; | |
892 | } | |
893 | ||
9461d272 | 894 | static int read_ref_at_ent(struct object_id *ooid, struct object_id *noid, |
dddbad72 | 895 | const char *email, timestamp_t timestamp, int tz, |
4207ed28 RS |
896 | const char *message, void *cb_data) |
897 | { | |
898 | struct read_ref_at_cb *cb = cb_data; | |
6436a202 | 899 | int reached_count; |
4207ed28 | 900 | |
4207ed28 RS |
901 | cb->tz = tz; |
902 | cb->date = timestamp; | |
903 | ||
6436a202 DL |
904 | /* |
905 | * It is not possible for cb->cnt == 0 on the first iteration because | |
906 | * that special case is handled in read_ref_at(). | |
907 | */ | |
908 | if (cb->cnt > 0) | |
909 | cb->cnt--; | |
910 | reached_count = cb->cnt == 0 && !is_null_oid(ooid); | |
911 | if (timestamp <= cb->at_time || reached_count) { | |
95c2a718 | 912 | set_read_ref_cutoffs(cb, timestamp, tz, message); |
4207ed28 | 913 | /* |
78fb4579 | 914 | * we have not yet updated cb->[n|o]oid so they still |
4207ed28 RS |
915 | * hold the values for the previous record. |
916 | */ | |
6436a202 DL |
917 | if (!is_null_oid(&cb->ooid) && !oideq(&cb->ooid, noid)) |
918 | warning(_("log for ref %s has gap after %s"), | |
a5481a6c | 919 | cb->refname, show_date(cb->date, cb->tz, DATE_MODE(RFC2822))); |
6436a202 DL |
920 | if (reached_count) |
921 | oidcpy(cb->oid, ooid); | |
922 | else if (!is_null_oid(&cb->ooid) || cb->date == cb->at_time) | |
8eb36d94 | 923 | oidcpy(cb->oid, noid); |
9001dc2a | 924 | else if (!oideq(noid, cb->oid)) |
661558f0 | 925 | warning(_("log for ref %s unexpectedly ended on %s"), |
4207ed28 | 926 | cb->refname, show_date(cb->date, cb->tz, |
a5481a6c | 927 | DATE_MODE(RFC2822))); |
4207ed28 | 928 | cb->found_it = 1; |
4207ed28 | 929 | } |
95c2a718 | 930 | cb->reccnt++; |
8eb36d94 | 931 | oidcpy(&cb->ooid, ooid); |
932 | oidcpy(&cb->noid, noid); | |
6436a202 DL |
933 | return cb->found_it; |
934 | } | |
935 | ||
936 | static int read_ref_at_ent_newest(struct object_id *ooid, struct object_id *noid, | |
937 | const char *email, timestamp_t timestamp, | |
938 | int tz, const char *message, void *cb_data) | |
939 | { | |
940 | struct read_ref_at_cb *cb = cb_data; | |
941 | ||
942 | set_read_ref_cutoffs(cb, timestamp, tz, message); | |
943 | oidcpy(cb->oid, noid); | |
944 | /* We just want the first entry */ | |
945 | return 1; | |
4207ed28 RS |
946 | } |
947 | ||
9461d272 | 948 | static int read_ref_at_ent_oldest(struct object_id *ooid, struct object_id *noid, |
dddbad72 | 949 | const char *email, timestamp_t timestamp, |
4207ed28 RS |
950 | int tz, const char *message, void *cb_data) |
951 | { | |
952 | struct read_ref_at_cb *cb = cb_data; | |
953 | ||
95c2a718 | 954 | set_read_ref_cutoffs(cb, timestamp, tz, message); |
8eb36d94 | 955 | oidcpy(cb->oid, ooid); |
956 | if (is_null_oid(cb->oid)) | |
957 | oidcpy(cb->oid, noid); | |
4207ed28 RS |
958 | /* We just want the first entry */ |
959 | return 1; | |
16d7cc90 JH |
960 | } |
961 | ||
7fdff474 NTND |
962 | int read_ref_at(struct ref_store *refs, const char *refname, |
963 | unsigned int flags, timestamp_t at_time, int cnt, | |
8eb36d94 | 964 | struct object_id *oid, char **msg, |
dddbad72 | 965 | timestamp_t *cutoff_time, int *cutoff_tz, int *cutoff_cnt) |
d556fae2 | 966 | { |
4207ed28 | 967 | struct read_ref_at_cb cb; |
d556fae2 | 968 | |
4207ed28 RS |
969 | memset(&cb, 0, sizeof(cb)); |
970 | cb.refname = refname; | |
971 | cb.at_time = at_time; | |
972 | cb.cnt = cnt; | |
973 | cb.msg = msg; | |
974 | cb.cutoff_time = cutoff_time; | |
975 | cb.cutoff_tz = cutoff_tz; | |
976 | cb.cutoff_cnt = cutoff_cnt; | |
8eb36d94 | 977 | cb.oid = oid; |
4207ed28 | 978 | |
6436a202 DL |
979 | if (cb.cnt == 0) { |
980 | refs_for_each_reflog_ent_reverse(refs, refname, read_ref_at_ent_newest, &cb); | |
981 | return 0; | |
982 | } | |
983 | ||
7fdff474 | 984 | refs_for_each_reflog_ent_reverse(refs, refname, read_ref_at_ent, &cb); |
4207ed28 | 985 | |
c41a87dd | 986 | if (!cb.reccnt) { |
321c89bf | 987 | if (flags & GET_OID_QUIETLY) |
c41a87dd DA |
988 | exit(128); |
989 | else | |
661558f0 | 990 | die(_("log for %s is empty"), refname); |
c41a87dd | 991 | } |
4207ed28 RS |
992 | if (cb.found_it) |
993 | return 0; | |
994 | ||
7fdff474 | 995 | refs_for_each_reflog_ent(refs, refname, read_ref_at_ent_oldest, &cb); |
d556fae2 | 996 | |
16d7cc90 | 997 | return 1; |
d556fae2 | 998 | } |
2ff81662 | 999 | |
c0fe4e8b | 1000 | struct ref_transaction *ref_store_transaction_begin(struct ref_store *refs, |
fbe73f61 | 1001 | unsigned int flags, |
c0fe4e8b | 1002 | struct strbuf *err) |
caa4046c | 1003 | { |
c0fe4e8b | 1004 | struct ref_transaction *tr; |
5a603b04 JN |
1005 | assert(err); |
1006 | ||
ca56dadb | 1007 | CALLOC_ARRAY(tr, 1); |
c0fe4e8b | 1008 | tr->ref_store = refs; |
fbe73f61 | 1009 | tr->flags = flags; |
c0fe4e8b NTND |
1010 | return tr; |
1011 | } | |
1012 | ||
1013 | struct ref_transaction *ref_transaction_begin(struct strbuf *err) | |
1014 | { | |
fbe73f61 | 1015 | return ref_store_transaction_begin(get_main_ref_store(the_repository), 0, err); |
caa4046c MH |
1016 | } |
1017 | ||
026bd1d3 | 1018 | void ref_transaction_free(struct ref_transaction *transaction) |
caa4046c | 1019 | { |
43a2dfde | 1020 | size_t i; |
caa4046c | 1021 | |
1b07255c RS |
1022 | if (!transaction) |
1023 | return; | |
1024 | ||
30173b88 MH |
1025 | switch (transaction->state) { |
1026 | case REF_TRANSACTION_OPEN: | |
1027 | case REF_TRANSACTION_CLOSED: | |
1028 | /* OK */ | |
1029 | break; | |
1030 | case REF_TRANSACTION_PREPARED: | |
033abf97 | 1031 | BUG("free called on a prepared reference transaction"); |
30173b88 MH |
1032 | break; |
1033 | default: | |
033abf97 | 1034 | BUG("unexpected reference transaction state"); |
30173b88 MH |
1035 | break; |
1036 | } | |
1037 | ||
db7516ab RS |
1038 | for (i = 0; i < transaction->nr; i++) { |
1039 | free(transaction->updates[i]->msg); | |
88615910 | 1040 | free(transaction->updates[i]); |
db7516ab | 1041 | } |
caa4046c MH |
1042 | free(transaction->updates); |
1043 | free(transaction); | |
1044 | } | |
1045 | ||
71564516 MH |
1046 | struct ref_update *ref_transaction_add_update( |
1047 | struct ref_transaction *transaction, | |
1048 | const char *refname, unsigned int flags, | |
89f3bbdd | 1049 | const struct object_id *new_oid, |
1050 | const struct object_id *old_oid, | |
71564516 | 1051 | const char *msg) |
caa4046c | 1052 | { |
96ffc06f | 1053 | struct ref_update *update; |
71564516 MH |
1054 | |
1055 | if (transaction->state != REF_TRANSACTION_OPEN) | |
033abf97 | 1056 | BUG("update called for transaction that is not open"); |
71564516 | 1057 | |
96ffc06f | 1058 | FLEX_ALLOC_STR(update, refname, refname); |
caa4046c MH |
1059 | ALLOC_GROW(transaction->updates, transaction->nr + 1, transaction->alloc); |
1060 | transaction->updates[transaction->nr++] = update; | |
71564516 MH |
1061 | |
1062 | update->flags = flags; | |
1063 | ||
1064 | if (flags & REF_HAVE_NEW) | |
89f3bbdd | 1065 | oidcpy(&update->new_oid, new_oid); |
71564516 | 1066 | if (flags & REF_HAVE_OLD) |
89f3bbdd | 1067 | oidcpy(&update->old_oid, old_oid); |
523fa69c | 1068 | update->msg = normalize_reflog_message(msg); |
caa4046c MH |
1069 | return update; |
1070 | } | |
1071 | ||
8e34800e RS |
1072 | int ref_transaction_update(struct ref_transaction *transaction, |
1073 | const char *refname, | |
89f3bbdd | 1074 | const struct object_id *new_oid, |
1075 | const struct object_id *old_oid, | |
1d147bdf | 1076 | unsigned int flags, const char *msg, |
8e34800e | 1077 | struct strbuf *err) |
caa4046c | 1078 | { |
5a603b04 JN |
1079 | assert(err); |
1080 | ||
3c966c7b HWN |
1081 | if (!(flags & REF_SKIP_REFNAME_VERIFICATION) && |
1082 | ((new_oid && !is_null_oid(new_oid)) ? | |
1083 | check_refname_format(refname, REFNAME_ALLOW_ONELEVEL) : | |
1084 | !refname_is_safe(refname))) { | |
661558f0 | 1085 | strbuf_addf(err, _("refusing to update ref with bad name '%s'"), |
d0f810f0 RS |
1086 | refname); |
1087 | return -1; | |
1088 | } | |
1089 | ||
a9bbbcec MH |
1090 | if (flags & ~REF_TRANSACTION_UPDATE_ALLOWED_FLAGS) |
1091 | BUG("illegal flags 0x%x passed to ref_transaction_update()", flags); | |
c788c54c | 1092 | |
49f1eb3b JK |
1093 | /* |
1094 | * Clear flags outside the allowed set; this should be a noop because | |
1095 | * of the BUG() check above, but it works around a -Wnonnull warning | |
1096 | * with some versions of "gcc -O3". | |
1097 | */ | |
1098 | flags &= REF_TRANSACTION_UPDATE_ALLOWED_FLAGS; | |
1099 | ||
89f3bbdd | 1100 | flags |= (new_oid ? REF_HAVE_NEW : 0) | (old_oid ? REF_HAVE_OLD : 0); |
71564516 MH |
1101 | |
1102 | ref_transaction_add_update(transaction, refname, flags, | |
89f3bbdd | 1103 | new_oid, old_oid, msg); |
8e34800e | 1104 | return 0; |
caa4046c MH |
1105 | } |
1106 | ||
b416af5b RS |
1107 | int ref_transaction_create(struct ref_transaction *transaction, |
1108 | const char *refname, | |
89f3bbdd | 1109 | const struct object_id *new_oid, |
fec14ec3 | 1110 | unsigned int flags, const char *msg, |
b416af5b | 1111 | struct strbuf *err) |
caa4046c | 1112 | { |
89f3bbdd | 1113 | if (!new_oid || is_null_oid(new_oid)) |
033abf97 | 1114 | BUG("create called without valid new_oid"); |
89f3bbdd | 1115 | return ref_transaction_update(transaction, refname, new_oid, |
14228447 | 1116 | null_oid(), flags, msg, err); |
caa4046c MH |
1117 | } |
1118 | ||
8c8bdc0d RS |
1119 | int ref_transaction_delete(struct ref_transaction *transaction, |
1120 | const char *refname, | |
89f3bbdd | 1121 | const struct object_id *old_oid, |
fb5a6bb6 | 1122 | unsigned int flags, const char *msg, |
8c8bdc0d | 1123 | struct strbuf *err) |
caa4046c | 1124 | { |
89f3bbdd | 1125 | if (old_oid && is_null_oid(old_oid)) |
033abf97 | 1126 | BUG("delete called with old_oid set to zeros"); |
1d147bdf | 1127 | return ref_transaction_update(transaction, refname, |
14228447 | 1128 | null_oid(), old_oid, |
1d147bdf | 1129 | flags, msg, err); |
caa4046c MH |
1130 | } |
1131 | ||
16180334 MH |
1132 | int ref_transaction_verify(struct ref_transaction *transaction, |
1133 | const char *refname, | |
89f3bbdd | 1134 | const struct object_id *old_oid, |
16180334 MH |
1135 | unsigned int flags, |
1136 | struct strbuf *err) | |
1137 | { | |
89f3bbdd | 1138 | if (!old_oid) |
033abf97 | 1139 | BUG("verify called with old_oid set to NULL"); |
16180334 | 1140 | return ref_transaction_update(transaction, refname, |
89f3bbdd | 1141 | NULL, old_oid, |
16180334 MH |
1142 | flags, NULL, err); |
1143 | } | |
1144 | ||
c0fe4e8b | 1145 | int refs_update_ref(struct ref_store *refs, const char *msg, |
ae077771 | 1146 | const char *refname, const struct object_id *new_oid, |
1147 | const struct object_id *old_oid, unsigned int flags, | |
c0fe4e8b | 1148 | enum action_on_err onerr) |
4738a333 | 1149 | { |
74ec19d4 | 1150 | struct ref_transaction *t = NULL; |
b4d75ac1 | 1151 | struct strbuf err = STRBUF_INIT; |
74ec19d4 | 1152 | int ret = 0; |
b4d75ac1 | 1153 | |
fbe73f61 | 1154 | t = ref_store_transaction_begin(refs, 0, &err); |
09743417 HWN |
1155 | if (!t || |
1156 | ref_transaction_update(t, refname, new_oid, old_oid, flags, msg, | |
1157 | &err) || | |
1158 | ref_transaction_commit(t, &err)) { | |
1159 | ret = 1; | |
1160 | ref_transaction_free(t); | |
74ec19d4 DT |
1161 | } |
1162 | if (ret) { | |
661558f0 | 1163 | const char *str = _("update_ref failed for ref '%s': %s"); |
b4d75ac1 | 1164 | |
b4d75ac1 RS |
1165 | switch (onerr) { |
1166 | case UPDATE_REFS_MSG_ON_ERR: | |
1167 | error(str, refname, err.buf); | |
1168 | break; | |
1169 | case UPDATE_REFS_DIE_ON_ERR: | |
1170 | die(str, refname, err.buf); | |
1171 | break; | |
1172 | case UPDATE_REFS_QUIET_ON_ERR: | |
1173 | break; | |
1174 | } | |
1175 | strbuf_release(&err); | |
4738a333 | 1176 | return 1; |
b4d75ac1 RS |
1177 | } |
1178 | strbuf_release(&err); | |
74ec19d4 DT |
1179 | if (t) |
1180 | ref_transaction_free(t); | |
b4d75ac1 | 1181 | return 0; |
4738a333 BK |
1182 | } |
1183 | ||
c0fe4e8b | 1184 | int update_ref(const char *msg, const char *refname, |
ae077771 | 1185 | const struct object_id *new_oid, |
1186 | const struct object_id *old_oid, | |
c0fe4e8b NTND |
1187 | unsigned int flags, enum action_on_err onerr) |
1188 | { | |
23a3f0cb | 1189 | return refs_update_ref(get_main_ref_store(the_repository), msg, refname, new_oid, |
ae077771 | 1190 | old_oid, flags, onerr); |
c0fe4e8b NTND |
1191 | } |
1192 | ||
546edf37 NTND |
1193 | char *refs_shorten_unambiguous_ref(struct ref_store *refs, |
1194 | const char *refname, int strict) | |
7c2b3029 JK |
1195 | { |
1196 | int i; | |
1197 | static char **scanf_fmts; | |
1198 | static int nr_rules; | |
1199 | char *short_name; | |
6cd4a898 | 1200 | struct strbuf resolved_buf = STRBUF_INIT; |
7c2b3029 | 1201 | |
7c2b3029 | 1202 | if (!nr_rules) { |
4346663a MH |
1203 | /* |
1204 | * Pre-generate scanf formats from ref_rev_parse_rules[]. | |
1205 | * Generate a format suitable for scanf from a | |
1206 | * ref_rev_parse_rules rule by interpolating "%s" at the | |
1207 | * location of the "%.*s". | |
1208 | */ | |
7c2b3029 | 1209 | size_t total_len = 0; |
84d5633f | 1210 | size_t offset = 0; |
7c2b3029 JK |
1211 | |
1212 | /* the rule list is NULL terminated, count them first */ | |
a4165851 | 1213 | for (nr_rules = 0; ref_rev_parse_rules[nr_rules]; nr_rules++) |
7902fe03 MH |
1214 | /* -2 for strlen("%.*s") - strlen("%s"); +1 for NUL */ |
1215 | total_len += strlen(ref_rev_parse_rules[nr_rules]) - 2 + 1; | |
7c2b3029 | 1216 | |
50492f7b | 1217 | scanf_fmts = xmalloc(st_add(st_mult(sizeof(char *), nr_rules), total_len)); |
7c2b3029 | 1218 | |
84d5633f | 1219 | offset = 0; |
7c2b3029 | 1220 | for (i = 0; i < nr_rules; i++) { |
4346663a | 1221 | assert(offset < total_len); |
84d5633f | 1222 | scanf_fmts[i] = (char *)&scanf_fmts[nr_rules] + offset; |
bf4baf1f JK |
1223 | offset += xsnprintf(scanf_fmts[i], total_len - offset, |
1224 | ref_rev_parse_rules[i], 2, "%s") + 1; | |
7c2b3029 JK |
1225 | } |
1226 | } | |
1227 | ||
1228 | /* bail out if there are no rules */ | |
1229 | if (!nr_rules) | |
dfefa935 | 1230 | return xstrdup(refname); |
7c2b3029 | 1231 | |
dfefa935 MH |
1232 | /* buffer for scanf result, at most refname must fit */ |
1233 | short_name = xstrdup(refname); | |
7c2b3029 JK |
1234 | |
1235 | /* skip first rule, it will always match */ | |
1236 | for (i = nr_rules - 1; i > 0 ; --i) { | |
1237 | int j; | |
6e7b3309 | 1238 | int rules_to_fail = i; |
7c2b3029 JK |
1239 | int short_name_len; |
1240 | ||
dfefa935 | 1241 | if (1 != sscanf(refname, scanf_fmts[i], short_name)) |
7c2b3029 JK |
1242 | continue; |
1243 | ||
1244 | short_name_len = strlen(short_name); | |
1245 | ||
6e7b3309 BW |
1246 | /* |
1247 | * in strict mode, all (except the matched one) rules | |
1248 | * must fail to resolve to a valid non-ambiguous ref | |
1249 | */ | |
1250 | if (strict) | |
1251 | rules_to_fail = nr_rules; | |
1252 | ||
7c2b3029 JK |
1253 | /* |
1254 | * check if the short name resolves to a valid ref, | |
1255 | * but use only rules prior to the matched one | |
1256 | */ | |
6e7b3309 | 1257 | for (j = 0; j < rules_to_fail; j++) { |
7c2b3029 | 1258 | const char *rule = ref_rev_parse_rules[j]; |
7c2b3029 | 1259 | |
6e7b3309 BW |
1260 | /* skip matched rule */ |
1261 | if (i == j) | |
1262 | continue; | |
1263 | ||
7c2b3029 JK |
1264 | /* |
1265 | * the short name is ambiguous, if it resolves | |
1266 | * (with this previous rule) to a valid ref | |
1267 | * read_ref() returns 0 on success | |
1268 | */ | |
6cd4a898 JK |
1269 | strbuf_reset(&resolved_buf); |
1270 | strbuf_addf(&resolved_buf, rule, | |
1271 | short_name_len, short_name); | |
546edf37 | 1272 | if (refs_ref_exists(refs, resolved_buf.buf)) |
7c2b3029 JK |
1273 | break; |
1274 | } | |
1275 | ||
1276 | /* | |
1277 | * short name is non-ambiguous if all previous rules | |
1278 | * haven't resolved to a valid ref | |
1279 | */ | |
6cd4a898 JK |
1280 | if (j == rules_to_fail) { |
1281 | strbuf_release(&resolved_buf); | |
7c2b3029 | 1282 | return short_name; |
6cd4a898 | 1283 | } |
7c2b3029 JK |
1284 | } |
1285 | ||
6cd4a898 | 1286 | strbuf_release(&resolved_buf); |
7c2b3029 | 1287 | free(short_name); |
dfefa935 | 1288 | return xstrdup(refname); |
7c2b3029 | 1289 | } |
daebaa78 | 1290 | |
546edf37 NTND |
1291 | char *shorten_unambiguous_ref(const char *refname, int strict) |
1292 | { | |
1293 | return refs_shorten_unambiguous_ref(get_main_ref_store(the_repository), | |
1294 | refname, strict); | |
1295 | } | |
1296 | ||
daebaa78 JH |
1297 | static struct string_list *hide_refs; |
1298 | ||
1299 | int parse_hide_refs_config(const char *var, const char *value, const char *section) | |
1300 | { | |
ad8c7cda | 1301 | const char *key; |
daebaa78 | 1302 | if (!strcmp("transfer.hiderefs", var) || |
ad8c7cda JK |
1303 | (!parse_config_key(var, section, NULL, NULL, &key) && |
1304 | !strcmp(key, "hiderefs"))) { | |
daebaa78 JH |
1305 | char *ref; |
1306 | int len; | |
1307 | ||
1308 | if (!value) | |
1309 | return config_error_nonbool(var); | |
1310 | ref = xstrdup(value); | |
1311 | len = strlen(ref); | |
1312 | while (len && ref[len - 1] == '/') | |
1313 | ref[--len] = '\0'; | |
1314 | if (!hide_refs) { | |
ca56dadb | 1315 | CALLOC_ARRAY(hide_refs, 1); |
daebaa78 JH |
1316 | hide_refs->strdup_strings = 1; |
1317 | } | |
1318 | string_list_append(hide_refs, ref); | |
1319 | } | |
1320 | return 0; | |
1321 | } | |
1322 | ||
78a766ab | 1323 | int ref_is_hidden(const char *refname, const char *refname_full) |
daebaa78 | 1324 | { |
2bc31d16 | 1325 | int i; |
daebaa78 JH |
1326 | |
1327 | if (!hide_refs) | |
1328 | return 0; | |
2bc31d16 JK |
1329 | for (i = hide_refs->nr - 1; i >= 0; i--) { |
1330 | const char *match = hide_refs->items[i].string; | |
78a766ab | 1331 | const char *subject; |
2bc31d16 | 1332 | int neg = 0; |
7a40a95e | 1333 | const char *p; |
2bc31d16 JK |
1334 | |
1335 | if (*match == '!') { | |
1336 | neg = 1; | |
1337 | match++; | |
1338 | } | |
1339 | ||
78a766ab LF |
1340 | if (*match == '^') { |
1341 | subject = refname_full; | |
1342 | match++; | |
1343 | } else { | |
1344 | subject = refname; | |
1345 | } | |
1346 | ||
1347 | /* refname can be NULL when namespaces are used. */ | |
7a40a95e CC |
1348 | if (subject && |
1349 | skip_prefix(subject, match, &p) && | |
1350 | (!*p || *p == '/')) | |
2bc31d16 | 1351 | return !neg; |
daebaa78 JH |
1352 | } |
1353 | return 0; | |
1354 | } | |
fa5b1830 | 1355 | |
0845122c DT |
1356 | const char *find_descendant_ref(const char *dirname, |
1357 | const struct string_list *extras, | |
1358 | const struct string_list *skip) | |
fa5b1830 | 1359 | { |
0845122c | 1360 | int pos; |
fa5b1830 | 1361 | |
0845122c DT |
1362 | if (!extras) |
1363 | return NULL; | |
fa5b1830 MH |
1364 | |
1365 | /* | |
0845122c DT |
1366 | * Look at the place where dirname would be inserted into |
1367 | * extras. If there is an entry at that position that starts | |
1368 | * with dirname (remember, dirname includes the trailing | |
1369 | * slash) and is not in skip, then we have a conflict. | |
fa5b1830 | 1370 | */ |
0845122c DT |
1371 | for (pos = string_list_find_insert_index(extras, dirname, 0); |
1372 | pos < extras->nr; pos++) { | |
1373 | const char *extra_refname = extras->items[pos].string; | |
fa5b1830 | 1374 | |
0845122c DT |
1375 | if (!starts_with(extra_refname, dirname)) |
1376 | break; | |
1377 | ||
1378 | if (!skip || !string_list_has_string(skip, extra_refname)) | |
1379 | return extra_refname; | |
fa5b1830 | 1380 | } |
0845122c DT |
1381 | return NULL; |
1382 | } | |
fa5b1830 | 1383 | |
62f0b399 | 1384 | int refs_head_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
2bf68ed5 DT |
1385 | { |
1386 | struct object_id oid; | |
1387 | int flag; | |
1388 | ||
f1da24ca | 1389 | if (refs_resolve_ref_unsafe(refs, "HEAD", RESOLVE_REF_READING, |
ce14de03 | 1390 | &oid, &flag)) |
2bf68ed5 DT |
1391 | return fn("HEAD", &oid, flag, cb_data); |
1392 | ||
1393 | return 0; | |
1394 | } | |
1395 | ||
1396 | int head_ref(each_ref_fn fn, void *cb_data) | |
1397 | { | |
23a3f0cb | 1398 | return refs_head_ref(get_main_ref_store(the_repository), fn, cb_data); |
2bf68ed5 | 1399 | } |
93770590 | 1400 | |
e121b9cb MH |
1401 | struct ref_iterator *refs_ref_iterator_begin( |
1402 | struct ref_store *refs, | |
9aab952e JK |
1403 | const char *prefix, int trim, |
1404 | enum do_for_each_ref_flags flags) | |
e121b9cb MH |
1405 | { |
1406 | struct ref_iterator *iter; | |
1407 | ||
6d751be4 | 1408 | if (!(flags & DO_FOR_EACH_INCLUDE_BROKEN)) { |
5d1f5b8c JK |
1409 | static int ref_paranoia = -1; |
1410 | ||
6d751be4 | 1411 | if (ref_paranoia < 0) |
968f12fd | 1412 | ref_paranoia = git_env_bool("GIT_REF_PARANOIA", 1); |
6d751be4 JK |
1413 | if (ref_paranoia) { |
1414 | flags |= DO_FOR_EACH_INCLUDE_BROKEN; | |
1415 | flags |= DO_FOR_EACH_OMIT_DANGLING_SYMREFS; | |
1416 | } | |
1417 | } | |
0a0865b8 | 1418 | |
e121b9cb | 1419 | iter = refs->be->iterator_begin(refs, prefix, flags); |
c7599718 MH |
1420 | |
1421 | /* | |
1422 | * `iterator_begin()` already takes care of prefix, but we | |
1423 | * might need to do some trimming: | |
1424 | */ | |
1425 | if (trim) | |
1426 | iter = prefix_ref_iterator_begin(iter, "", trim); | |
e121b9cb | 1427 | |
8738a8a4 MH |
1428 | /* Sanity check for subclasses: */ |
1429 | if (!iter->ordered) | |
1430 | BUG("reference iterator is not ordered"); | |
1431 | ||
e121b9cb MH |
1432 | return iter; |
1433 | } | |
1434 | ||
4c4de895 MH |
1435 | /* |
1436 | * Call fn for each reference in the specified submodule for which the | |
1437 | * refname begins with prefix. If trim is non-zero, then trim that | |
1438 | * many characters off the beginning of each refname before passing | |
1439 | * the refname to fn. flags can be DO_FOR_EACH_INCLUDE_BROKEN to | |
1440 | * include broken references in the iteration. If fn ever returns a | |
1441 | * non-zero value, stop the iteration and return that value; | |
1442 | * otherwise, return 0. | |
1443 | */ | |
4a6067cd SB |
1444 | static int do_for_each_repo_ref(struct repository *r, const char *prefix, |
1445 | each_repo_ref_fn fn, int trim, int flags, | |
1446 | void *cb_data) | |
1447 | { | |
1448 | struct ref_iterator *iter; | |
1449 | struct ref_store *refs = get_main_ref_store(r); | |
1450 | ||
1451 | if (!refs) | |
1452 | return 0; | |
1453 | ||
1454 | iter = refs_ref_iterator_begin(refs, prefix, trim, flags); | |
1455 | ||
1456 | return do_for_each_repo_ref_iterator(r, iter, fn, cb_data); | |
1457 | } | |
1458 | ||
1459 | struct do_for_each_ref_help { | |
1460 | each_ref_fn *fn; | |
1461 | void *cb_data; | |
1462 | }; | |
1463 | ||
1464 | static int do_for_each_ref_helper(struct repository *r, | |
1465 | const char *refname, | |
1466 | const struct object_id *oid, | |
1467 | int flags, | |
1468 | void *cb_data) | |
1469 | { | |
1470 | struct do_for_each_ref_help *hp = cb_data; | |
1471 | ||
1472 | return hp->fn(refname, oid, flags, hp->cb_data); | |
1473 | } | |
1474 | ||
7d2df051 | 1475 | static int do_for_each_ref(struct ref_store *refs, const char *prefix, |
9aab952e JK |
1476 | each_ref_fn fn, int trim, |
1477 | enum do_for_each_ref_flags flags, void *cb_data) | |
4c4de895 MH |
1478 | { |
1479 | struct ref_iterator *iter; | |
4a6067cd | 1480 | struct do_for_each_ref_help hp = { fn, cb_data }; |
4c4de895 | 1481 | |
00eebe35 MH |
1482 | if (!refs) |
1483 | return 0; | |
1484 | ||
e121b9cb | 1485 | iter = refs_ref_iterator_begin(refs, prefix, trim, flags); |
4c4de895 | 1486 | |
4a6067cd SB |
1487 | return do_for_each_repo_ref_iterator(the_repository, iter, |
1488 | do_for_each_ref_helper, &hp); | |
4c4de895 MH |
1489 | } |
1490 | ||
7d2df051 NTND |
1491 | int refs_for_each_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
1492 | { | |
1493 | return do_for_each_ref(refs, "", fn, 0, 0, cb_data); | |
1494 | } | |
1495 | ||
93770590 DT |
1496 | int for_each_ref(each_ref_fn fn, void *cb_data) |
1497 | { | |
23a3f0cb | 1498 | return refs_for_each_ref(get_main_ref_store(the_repository), fn, cb_data); |
93770590 DT |
1499 | } |
1500 | ||
7d2df051 NTND |
1501 | int refs_for_each_ref_in(struct ref_store *refs, const char *prefix, |
1502 | each_ref_fn fn, void *cb_data) | |
1503 | { | |
1504 | return do_for_each_ref(refs, prefix, fn, strlen(prefix), 0, cb_data); | |
93770590 DT |
1505 | } |
1506 | ||
1507 | int for_each_ref_in(const char *prefix, each_ref_fn fn, void *cb_data) | |
1508 | { | |
23a3f0cb | 1509 | return refs_for_each_ref_in(get_main_ref_store(the_repository), prefix, fn, cb_data); |
93770590 DT |
1510 | } |
1511 | ||
67985e4e | 1512 | int for_each_fullref_in(const char *prefix, each_ref_fn fn, void *cb_data) |
93770590 | 1513 | { |
23a3f0cb | 1514 | return do_for_each_ref(get_main_ref_store(the_repository), |
67985e4e | 1515 | prefix, fn, 0, 0, cb_data); |
93770590 DT |
1516 | } |
1517 | ||
073cf63c | 1518 | int refs_for_each_fullref_in(struct ref_store *refs, const char *prefix, |
67985e4e | 1519 | each_ref_fn fn, void *cb_data) |
03df567f | 1520 | { |
67985e4e | 1521 | return do_for_each_ref(refs, prefix, fn, 0, 0, cb_data); |
03df567f MH |
1522 | } |
1523 | ||
212e0f7e | 1524 | int for_each_replace_ref(struct repository *r, each_repo_ref_fn fn, void *cb_data) |
93770590 | 1525 | { |
212e0f7e SB |
1526 | return do_for_each_repo_ref(r, git_replace_ref_base, fn, |
1527 | strlen(git_replace_ref_base), | |
1528 | DO_FOR_EACH_INCLUDE_BROKEN, cb_data); | |
93770590 DT |
1529 | } |
1530 | ||
1531 | int for_each_namespaced_ref(each_ref_fn fn, void *cb_data) | |
1532 | { | |
1533 | struct strbuf buf = STRBUF_INIT; | |
1534 | int ret; | |
1535 | strbuf_addf(&buf, "%srefs/", get_git_namespace()); | |
23a3f0cb | 1536 | ret = do_for_each_ref(get_main_ref_store(the_repository), |
7d2df051 | 1537 | buf.buf, fn, 0, 0, cb_data); |
93770590 DT |
1538 | strbuf_release(&buf); |
1539 | return ret; | |
1540 | } | |
1541 | ||
7d2df051 | 1542 | int refs_for_each_rawref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
93770590 | 1543 | { |
7d2df051 | 1544 | return do_for_each_ref(refs, "", fn, 0, |
93770590 DT |
1545 | DO_FOR_EACH_INCLUDE_BROKEN, cb_data); |
1546 | } | |
2d0663b2 | 1547 | |
7d2df051 NTND |
1548 | int for_each_rawref(each_ref_fn fn, void *cb_data) |
1549 | { | |
23a3f0cb | 1550 | return refs_for_each_rawref(get_main_ref_store(the_repository), fn, cb_data); |
7d2df051 NTND |
1551 | } |
1552 | ||
16b1985b TB |
1553 | static int qsort_strcmp(const void *va, const void *vb) |
1554 | { | |
1555 | const char *a = *(const char **)va; | |
1556 | const char *b = *(const char **)vb; | |
1557 | ||
1558 | return strcmp(a, b); | |
1559 | } | |
1560 | ||
1561 | static void find_longest_prefixes_1(struct string_list *out, | |
1562 | struct strbuf *prefix, | |
1563 | const char **patterns, size_t nr) | |
1564 | { | |
1565 | size_t i; | |
1566 | ||
1567 | for (i = 0; i < nr; i++) { | |
1568 | char c = patterns[i][prefix->len]; | |
1569 | if (!c || is_glob_special(c)) { | |
1570 | string_list_append(out, prefix->buf); | |
1571 | return; | |
1572 | } | |
1573 | } | |
1574 | ||
1575 | i = 0; | |
1576 | while (i < nr) { | |
1577 | size_t end; | |
1578 | ||
1579 | /* | |
1580 | * Set "end" to the index of the element _after_ the last one | |
1581 | * in our group. | |
1582 | */ | |
1583 | for (end = i + 1; end < nr; end++) { | |
1584 | if (patterns[i][prefix->len] != patterns[end][prefix->len]) | |
1585 | break; | |
1586 | } | |
1587 | ||
1588 | strbuf_addch(prefix, patterns[i][prefix->len]); | |
1589 | find_longest_prefixes_1(out, prefix, patterns + i, end - i); | |
1590 | strbuf_setlen(prefix, prefix->len - 1); | |
1591 | ||
1592 | i = end; | |
1593 | } | |
1594 | } | |
1595 | ||
1596 | static void find_longest_prefixes(struct string_list *out, | |
1597 | const char **patterns) | |
1598 | { | |
1599 | struct strvec sorted = STRVEC_INIT; | |
1600 | struct strbuf prefix = STRBUF_INIT; | |
1601 | ||
1602 | strvec_pushv(&sorted, patterns); | |
1603 | QSORT(sorted.v, sorted.nr, qsort_strcmp); | |
1604 | ||
1605 | find_longest_prefixes_1(out, &prefix, sorted.v, sorted.nr); | |
1606 | ||
1607 | strvec_clear(&sorted); | |
1608 | strbuf_release(&prefix); | |
1609 | } | |
1610 | ||
1611 | int for_each_fullref_in_prefixes(const char *namespace, | |
1612 | const char **patterns, | |
67985e4e | 1613 | each_ref_fn fn, void *cb_data) |
16b1985b TB |
1614 | { |
1615 | struct string_list prefixes = STRING_LIST_INIT_DUP; | |
1616 | struct string_list_item *prefix; | |
1617 | struct strbuf buf = STRBUF_INIT; | |
1618 | int ret = 0, namespace_len; | |
1619 | ||
1620 | find_longest_prefixes(&prefixes, patterns); | |
1621 | ||
1622 | if (namespace) | |
1623 | strbuf_addstr(&buf, namespace); | |
1624 | namespace_len = buf.len; | |
1625 | ||
1626 | for_each_string_list_item(prefix, &prefixes) { | |
1627 | strbuf_addstr(&buf, prefix->string); | |
67985e4e | 1628 | ret = for_each_fullref_in(buf.buf, fn, cb_data); |
16b1985b TB |
1629 | if (ret) |
1630 | break; | |
1631 | strbuf_setlen(&buf, namespace_len); | |
1632 | } | |
1633 | ||
1634 | string_list_clear(&prefixes, 0); | |
1635 | strbuf_release(&buf); | |
1636 | return ret; | |
1637 | } | |
1638 | ||
e8115302 HWN |
1639 | static int refs_read_special_head(struct ref_store *ref_store, |
1640 | const char *refname, struct object_id *oid, | |
df3458e9 HWN |
1641 | struct strbuf *referent, unsigned int *type, |
1642 | int *failure_errno) | |
e8115302 HWN |
1643 | { |
1644 | struct strbuf full_path = STRBUF_INIT; | |
1645 | struct strbuf content = STRBUF_INIT; | |
1646 | int result = -1; | |
1647 | strbuf_addf(&full_path, "%s/%s", ref_store->gitdir, refname); | |
1648 | ||
1649 | if (strbuf_read_file(&content, full_path.buf, 0) < 0) | |
1650 | goto done; | |
1651 | ||
df3458e9 HWN |
1652 | result = parse_loose_ref_contents(content.buf, oid, referent, type, |
1653 | failure_errno); | |
e8115302 HWN |
1654 | |
1655 | done: | |
1656 | strbuf_release(&full_path); | |
1657 | strbuf_release(&content); | |
1658 | return result; | |
1659 | } | |
1660 | ||
8b72fea7 HWN |
1661 | int refs_read_raw_ref(struct ref_store *ref_store, const char *refname, |
1662 | struct object_id *oid, struct strbuf *referent, | |
1663 | unsigned int *type, int *failure_errno) | |
470be518 | 1664 | { |
8b72fea7 | 1665 | assert(failure_errno); |
e8115302 HWN |
1666 | if (!strcmp(refname, "FETCH_HEAD") || !strcmp(refname, "MERGE_HEAD")) { |
1667 | return refs_read_special_head(ref_store, refname, oid, referent, | |
df3458e9 | 1668 | type, failure_errno); |
e8115302 HWN |
1669 | } |
1670 | ||
1671 | return ref_store->be->read_raw_ref(ref_store, refname, oid, referent, | |
8b72fea7 | 1672 | type, failure_errno); |
470be518 MH |
1673 | } |
1674 | ||
7d2df051 | 1675 | const char *refs_resolve_ref_unsafe(struct ref_store *refs, |
3c0cb0cb MH |
1676 | const char *refname, |
1677 | int resolve_flags, | |
ef18119d | 1678 | struct object_id *oid, |
ce14de03 | 1679 | int *flags) |
2d0663b2 DT |
1680 | { |
1681 | static struct strbuf sb_refname = STRBUF_INIT; | |
54fad661 | 1682 | struct object_id unused_oid; |
2d0663b2 DT |
1683 | int unused_flags; |
1684 | int symref_count; | |
1685 | ||
49e61479 | 1686 | if (!oid) |
1687 | oid = &unused_oid; | |
2d0663b2 DT |
1688 | if (!flags) |
1689 | flags = &unused_flags; | |
1690 | ||
1691 | *flags = 0; | |
1692 | ||
1693 | if (check_refname_format(refname, REFNAME_ALLOW_ONELEVEL)) { | |
1694 | if (!(resolve_flags & RESOLVE_REF_ALLOW_BAD_NAME) || | |
ce14de03 | 1695 | !refname_is_safe(refname)) |
2d0663b2 | 1696 | return NULL; |
2d0663b2 DT |
1697 | |
1698 | /* | |
1699 | * dwim_ref() uses REF_ISBROKEN to distinguish between | |
1700 | * missing refs and refs that were present but invalid, | |
1701 | * to complain about the latter to stderr. | |
1702 | * | |
1703 | * We don't know whether the ref exists, so don't set | |
1704 | * REF_ISBROKEN yet. | |
1705 | */ | |
1706 | *flags |= REF_BAD_NAME; | |
1707 | } | |
1708 | ||
1709 | for (symref_count = 0; symref_count < SYMREF_MAXDEPTH; symref_count++) { | |
1710 | unsigned int read_flags = 0; | |
ce14de03 | 1711 | int failure_errno; |
2d0663b2 | 1712 | |
8b72fea7 | 1713 | if (refs_read_raw_ref(refs, refname, oid, &sb_refname, |
ce14de03 | 1714 | &read_flags, &failure_errno)) { |
2d0663b2 | 1715 | *flags |= read_flags; |
a1c1d817 JK |
1716 | |
1717 | /* In reading mode, refs must eventually resolve */ | |
1718 | if (resolve_flags & RESOLVE_REF_READING) | |
1719 | return NULL; | |
1720 | ||
1721 | /* | |
1722 | * Otherwise a missing ref is OK. But the files backend | |
1723 | * may show errors besides ENOENT if there are | |
1724 | * similarly-named refs. | |
1725 | */ | |
ce14de03 ÆAB |
1726 | if (failure_errno != ENOENT && |
1727 | failure_errno != EISDIR && | |
1728 | failure_errno != ENOTDIR) | |
2d0663b2 | 1729 | return NULL; |
a1c1d817 | 1730 | |
49e61479 | 1731 | oidclr(oid); |
2d0663b2 DT |
1732 | if (*flags & REF_BAD_NAME) |
1733 | *flags |= REF_ISBROKEN; | |
1734 | return refname; | |
1735 | } | |
1736 | ||
1737 | *flags |= read_flags; | |
1738 | ||
1739 | if (!(read_flags & REF_ISSYMREF)) { | |
1740 | if (*flags & REF_BAD_NAME) { | |
49e61479 | 1741 | oidclr(oid); |
2d0663b2 DT |
1742 | *flags |= REF_ISBROKEN; |
1743 | } | |
1744 | return refname; | |
1745 | } | |
1746 | ||
1747 | refname = sb_refname.buf; | |
1748 | if (resolve_flags & RESOLVE_REF_NO_RECURSE) { | |
49e61479 | 1749 | oidclr(oid); |
2d0663b2 DT |
1750 | return refname; |
1751 | } | |
1752 | if (check_refname_format(refname, REFNAME_ALLOW_ONELEVEL)) { | |
1753 | if (!(resolve_flags & RESOLVE_REF_ALLOW_BAD_NAME) || | |
ce14de03 | 1754 | !refname_is_safe(refname)) |
2d0663b2 | 1755 | return NULL; |
2d0663b2 DT |
1756 | |
1757 | *flags |= REF_ISBROKEN | REF_BAD_NAME; | |
1758 | } | |
1759 | } | |
1760 | ||
2d0663b2 DT |
1761 | return NULL; |
1762 | } | |
00eebe35 | 1763 | |
6fb5acfd DT |
1764 | /* backend functions */ |
1765 | int refs_init_db(struct strbuf *err) | |
1766 | { | |
23a3f0cb | 1767 | struct ref_store *refs = get_main_ref_store(the_repository); |
6fb5acfd DT |
1768 | |
1769 | return refs->be->init_db(refs, err); | |
1770 | } | |
1771 | ||
bd40dcda | 1772 | const char *resolve_ref_unsafe(const char *refname, int resolve_flags, |
49e61479 | 1773 | struct object_id *oid, int *flags) |
bd40dcda | 1774 | { |
23a3f0cb | 1775 | return refs_resolve_ref_unsafe(get_main_ref_store(the_repository), refname, |
ce14de03 | 1776 | resolve_flags, oid, flags); |
bd40dcda MH |
1777 | } |
1778 | ||
a8355bb7 | 1779 | int resolve_gitlink_ref(const char *submodule, const char *refname, |
a98e6101 | 1780 | struct object_id *oid) |
424dcc76 | 1781 | { |
424dcc76 MH |
1782 | struct ref_store *refs; |
1783 | int flags; | |
1784 | ||
29babbee | 1785 | refs = get_submodule_ref_store(submodule); |
48a8475f | 1786 | |
424dcc76 MH |
1787 | if (!refs) |
1788 | return -1; | |
1789 | ||
ce14de03 ÆAB |
1790 | if (!refs_resolve_ref_unsafe(refs, refname, 0, oid, &flags) || |
1791 | is_null_oid(oid)) | |
424dcc76 MH |
1792 | return -1; |
1793 | return 0; | |
1794 | } | |
1795 | ||
0c064d90 | 1796 | struct ref_store_hash_entry |
7d4558c4 | 1797 | { |
e2b5038d | 1798 | struct hashmap_entry ent; |
7d4558c4 MH |
1799 | |
1800 | struct ref_store *refs; | |
1801 | ||
0c064d90 NTND |
1802 | /* NUL-terminated identifier of the ref store: */ |
1803 | char name[FLEX_ARRAY]; | |
7d4558c4 MH |
1804 | }; |
1805 | ||
7663cdc8 | 1806 | static int ref_store_hash_cmp(const void *unused_cmp_data, |
939af16e EW |
1807 | const struct hashmap_entry *eptr, |
1808 | const struct hashmap_entry *entry_or_key, | |
7d4558c4 MH |
1809 | const void *keydata) |
1810 | { | |
939af16e EW |
1811 | const struct ref_store_hash_entry *e1, *e2; |
1812 | const char *name; | |
1813 | ||
1814 | e1 = container_of(eptr, const struct ref_store_hash_entry, ent); | |
1815 | e2 = container_of(entry_or_key, const struct ref_store_hash_entry, ent); | |
1816 | name = keydata ? keydata : e2->name; | |
7d4558c4 | 1817 | |
0c064d90 | 1818 | return strcmp(e1->name, name); |
7d4558c4 MH |
1819 | } |
1820 | ||
0c064d90 NTND |
1821 | static struct ref_store_hash_entry *alloc_ref_store_hash_entry( |
1822 | const char *name, struct ref_store *refs) | |
7d4558c4 | 1823 | { |
0c064d90 | 1824 | struct ref_store_hash_entry *entry; |
7d4558c4 | 1825 | |
0c064d90 | 1826 | FLEX_ALLOC_STR(entry, name, name); |
d22245a2 | 1827 | hashmap_entry_init(&entry->ent, strhash(name)); |
7d4558c4 MH |
1828 | entry->refs = refs; |
1829 | return entry; | |
1830 | } | |
1831 | ||
7d4558c4 MH |
1832 | /* A hashmap of ref_stores, stored by submodule name: */ |
1833 | static struct hashmap submodule_ref_stores; | |
00eebe35 | 1834 | |
17eff96b NTND |
1835 | /* A hashmap of ref_stores, stored by worktree id: */ |
1836 | static struct hashmap worktree_ref_stores; | |
1837 | ||
c468da4e | 1838 | /* |
0c064d90 NTND |
1839 | * Look up a ref store by name. If that ref_store hasn't been |
1840 | * registered yet, return NULL. | |
c468da4e | 1841 | */ |
0c064d90 NTND |
1842 | static struct ref_store *lookup_ref_store_map(struct hashmap *map, |
1843 | const char *name) | |
00eebe35 | 1844 | { |
0c064d90 | 1845 | struct ref_store_hash_entry *entry; |
f23a4651 | 1846 | unsigned int hash; |
00eebe35 | 1847 | |
0c064d90 | 1848 | if (!map->tablesize) |
7d4558c4 MH |
1849 | /* It's initialized on demand in register_ref_store(). */ |
1850 | return NULL; | |
620a66b9 | 1851 | |
f23a4651 EW |
1852 | hash = strhash(name); |
1853 | entry = hashmap_get_entry_from_hash(map, hash, name, | |
1854 | struct ref_store_hash_entry, ent); | |
7d4558c4 | 1855 | return entry ? entry->refs : NULL; |
00eebe35 MH |
1856 | } |
1857 | ||
c468da4e MH |
1858 | /* |
1859 | * Create, record, and return a ref_store instance for the specified | |
5d0bc90e | 1860 | * gitdir. |
c468da4e | 1861 | */ |
34224e14 JT |
1862 | static struct ref_store *ref_store_init(struct repository *repo, |
1863 | const char *gitdir, | |
9e7ec634 | 1864 | unsigned int flags) |
00eebe35 MH |
1865 | { |
1866 | const char *be_name = "files"; | |
1867 | struct ref_storage_be *be = find_ref_storage_backend(be_name); | |
ba88add5 | 1868 | struct ref_store *refs; |
00eebe35 MH |
1869 | |
1870 | if (!be) | |
033abf97 | 1871 | BUG("reference backend %s is unknown", be_name); |
00eebe35 | 1872 | |
34224e14 | 1873 | refs = be->init(repo, gitdir, flags); |
ba88add5 | 1874 | return refs; |
00eebe35 MH |
1875 | } |
1876 | ||
64a74161 | 1877 | struct ref_store *get_main_ref_store(struct repository *r) |
24c8407e | 1878 | { |
02204610 JK |
1879 | if (r->refs_private) |
1880 | return r->refs_private; | |
24c8407e | 1881 | |
2dc417ab JK |
1882 | if (!r->gitdir) |
1883 | BUG("attempting to get main_ref_store outside of repository"); | |
1884 | ||
34224e14 | 1885 | r->refs_private = ref_store_init(r, r->gitdir, REF_STORE_ALL_CAPS); |
4441f427 | 1886 | r->refs_private = maybe_debug_wrap_ref_store(r->gitdir, r->refs_private); |
02204610 | 1887 | return r->refs_private; |
378dc910 NTND |
1888 | } |
1889 | ||
1890 | /* | |
0c064d90 NTND |
1891 | * Associate a ref store with a name. It is a fatal error to call this |
1892 | * function twice for the same name. | |
378dc910 | 1893 | */ |
0c064d90 NTND |
1894 | static void register_ref_store_map(struct hashmap *map, |
1895 | const char *type, | |
1896 | struct ref_store *refs, | |
1897 | const char *name) | |
378dc910 | 1898 | { |
26b455f2 EW |
1899 | struct ref_store_hash_entry *entry; |
1900 | ||
0c064d90 | 1901 | if (!map->tablesize) |
7663cdc8 | 1902 | hashmap_init(map, ref_store_hash_cmp, NULL, 0); |
378dc910 | 1903 | |
26b455f2 EW |
1904 | entry = alloc_ref_store_hash_entry(name, refs); |
1905 | if (hashmap_put(map, &entry->ent)) | |
033abf97 | 1906 | BUG("%s ref_store '%s' initialized twice", type, name); |
24c8407e NTND |
1907 | } |
1908 | ||
18d0002d | 1909 | struct ref_store *get_submodule_ref_store(const char *submodule) |
00eebe35 | 1910 | { |
126c9e05 | 1911 | struct strbuf submodule_sb = STRBUF_INIT; |
00eebe35 | 1912 | struct ref_store *refs; |
29babbee NTND |
1913 | char *to_free = NULL; |
1914 | size_t len; | |
34224e14 | 1915 | struct repository *subrepo; |
00eebe35 | 1916 | |
82a150f2 NTND |
1917 | if (!submodule) |
1918 | return NULL; | |
1919 | ||
873ea90d NTND |
1920 | len = strlen(submodule); |
1921 | while (len && is_dir_sep(submodule[len - 1])) | |
1922 | len--; | |
1923 | if (!len) | |
1924 | return NULL; | |
00eebe35 | 1925 | |
29babbee NTND |
1926 | if (submodule[len]) |
1927 | /* We need to strip off one or more trailing slashes */ | |
1928 | submodule = to_free = xmemdupz(submodule, len); | |
00eebe35 | 1929 | |
0c064d90 | 1930 | refs = lookup_ref_store_map(&submodule_ref_stores, submodule); |
126c9e05 | 1931 | if (refs) |
2c616c17 | 1932 | goto done; |
00eebe35 | 1933 | |
126c9e05 | 1934 | strbuf_addstr(&submodule_sb, submodule); |
2c616c17 NTND |
1935 | if (!is_nonbare_repository_dir(&submodule_sb)) |
1936 | goto done; | |
00eebe35 | 1937 | |
2c616c17 NTND |
1938 | if (submodule_to_gitdir(&submodule_sb, submodule)) |
1939 | goto done; | |
00eebe35 | 1940 | |
34224e14 JT |
1941 | subrepo = xmalloc(sizeof(*subrepo)); |
1942 | /* | |
1943 | * NEEDSWORK: Make get_submodule_ref_store() work with arbitrary | |
1944 | * superprojects other than the_repository. This probably should be | |
1945 | * done by making it take a struct repository * parameter instead of a | |
1946 | * submodule path. | |
1947 | */ | |
1948 | if (repo_submodule_init(subrepo, the_repository, submodule, | |
1949 | null_oid())) { | |
1950 | free(subrepo); | |
1951 | goto done; | |
1952 | } | |
1953 | refs = ref_store_init(subrepo, submodule_sb.buf, | |
9e7ec634 | 1954 | REF_STORE_READ | REF_STORE_ODB); |
0c064d90 NTND |
1955 | register_ref_store_map(&submodule_ref_stores, "submodule", |
1956 | refs, submodule); | |
5d0bc90e | 1957 | |
2c616c17 | 1958 | done: |
5d0bc90e | 1959 | strbuf_release(&submodule_sb); |
29babbee NTND |
1960 | free(to_free); |
1961 | ||
00eebe35 MH |
1962 | return refs; |
1963 | } | |
1964 | ||
17eff96b NTND |
1965 | struct ref_store *get_worktree_ref_store(const struct worktree *wt) |
1966 | { | |
1967 | struct ref_store *refs; | |
1968 | const char *id; | |
1969 | ||
1970 | if (wt->is_current) | |
23a3f0cb | 1971 | return get_main_ref_store(the_repository); |
17eff96b NTND |
1972 | |
1973 | id = wt->id ? wt->id : "/"; | |
1974 | refs = lookup_ref_store_map(&worktree_ref_stores, id); | |
1975 | if (refs) | |
1976 | return refs; | |
1977 | ||
1978 | if (wt->id) | |
34224e14 JT |
1979 | refs = ref_store_init(the_repository, |
1980 | git_common_path("worktrees/%s", wt->id), | |
17eff96b NTND |
1981 | REF_STORE_ALL_CAPS); |
1982 | else | |
34224e14 JT |
1983 | refs = ref_store_init(the_repository, |
1984 | get_git_common_dir(), | |
17eff96b NTND |
1985 | REF_STORE_ALL_CAPS); |
1986 | ||
1987 | if (refs) | |
1988 | register_ref_store_map(&worktree_ref_stores, "worktree", | |
1989 | refs, id); | |
1990 | return refs; | |
1991 | } | |
1992 | ||
f9f7fd3b HWN |
1993 | void base_ref_store_init(struct ref_store *refs, struct repository *repo, |
1994 | const char *path, const struct ref_storage_be *be) | |
00eebe35 | 1995 | { |
620a66b9 | 1996 | refs->be = be; |
f9f7fd3b HWN |
1997 | refs->repo = repo; |
1998 | refs->gitdir = xstrdup(path); | |
00eebe35 | 1999 | } |
127b42a1 RS |
2000 | |
2001 | /* backend functions */ | |
7d2df051 | 2002 | int refs_pack_refs(struct ref_store *refs, unsigned int flags) |
8231527e | 2003 | { |
8231527e MH |
2004 | return refs->be->pack_refs(refs, flags); |
2005 | } | |
2006 | ||
36a31792 | 2007 | int peel_iterated_oid(const struct object_id *base, struct object_id *peeled) |
7d2df051 | 2008 | { |
36a31792 JK |
2009 | if (current_ref_iter && |
2010 | (current_ref_iter->oid == base || | |
2011 | oideq(current_ref_iter->oid, base))) | |
2012 | return ref_iterator_peel(current_ref_iter, peeled); | |
ba1c052f | 2013 | |
617480d7 | 2014 | return peel_object(base, peeled) ? -1 : 0; |
7d2df051 | 2015 | } |
bd427cf2 | 2016 | |
7d2df051 NTND |
2017 | int refs_create_symref(struct ref_store *refs, |
2018 | const char *ref_target, | |
2019 | const char *refs_heads_master, | |
2020 | const char *logmsg) | |
2021 | { | |
523fa69c JH |
2022 | char *msg; |
2023 | int retval; | |
2024 | ||
2025 | msg = normalize_reflog_message(logmsg); | |
2026 | retval = refs->be->create_symref(refs, ref_target, refs_heads_master, | |
2027 | msg); | |
2028 | free(msg); | |
2029 | return retval; | |
bd427cf2 MH |
2030 | } |
2031 | ||
284689ba MH |
2032 | int create_symref(const char *ref_target, const char *refs_heads_master, |
2033 | const char *logmsg) | |
2034 | { | |
23a3f0cb | 2035 | return refs_create_symref(get_main_ref_store(the_repository), ref_target, |
7d2df051 | 2036 | refs_heads_master, logmsg); |
284689ba MH |
2037 | } |
2038 | ||
2ced105c MH |
2039 | int ref_update_reject_duplicates(struct string_list *refnames, |
2040 | struct strbuf *err) | |
2041 | { | |
a552e50e | 2042 | size_t i, n = refnames->nr; |
2ced105c MH |
2043 | |
2044 | assert(err); | |
2045 | ||
8556f8d6 MH |
2046 | for (i = 1; i < n; i++) { |
2047 | int cmp = strcmp(refnames->items[i - 1].string, | |
2048 | refnames->items[i].string); | |
2049 | ||
2050 | if (!cmp) { | |
2ced105c | 2051 | strbuf_addf(err, |
661558f0 | 2052 | _("multiple updates for ref '%s' not allowed"), |
2ced105c MH |
2053 | refnames->items[i].string); |
2054 | return 1; | |
8556f8d6 | 2055 | } else if (cmp > 0) { |
033abf97 | 2056 | BUG("ref_update_reject_duplicates() received unsorted list"); |
2ced105c | 2057 | } |
8556f8d6 | 2058 | } |
2ced105c MH |
2059 | return 0; |
2060 | } | |
2061 | ||
67541597 PS |
2062 | static int run_transaction_hook(struct ref_transaction *transaction, |
2063 | const char *state) | |
2064 | { | |
2065 | struct child_process proc = CHILD_PROCESS_INIT; | |
2066 | struct strbuf buf = STRBUF_INIT; | |
0a0fbbe3 | 2067 | const char *hook; |
67541597 PS |
2068 | int ret = 0, i; |
2069 | ||
958fbc74 PS |
2070 | if (transaction->flags & REF_TRANSACTION_SKIP_HOOK) |
2071 | return 0; | |
2072 | ||
0a0fbbe3 | 2073 | hook = find_hook("reference-transaction"); |
67541597 | 2074 | if (!hook) |
67541597 | 2075 | return ret; |
67541597 | 2076 | |
c972bf4c | 2077 | strvec_pushl(&proc.args, hook, state, NULL); |
67541597 PS |
2078 | proc.in = -1; |
2079 | proc.stdout_to_stderr = 1; | |
2080 | proc.trace2_hook_name = "reference-transaction"; | |
2081 | ||
2082 | ret = start_command(&proc); | |
2083 | if (ret) | |
2084 | return ret; | |
2085 | ||
2086 | sigchain_push(SIGPIPE, SIG_IGN); | |
2087 | ||
2088 | for (i = 0; i < transaction->nr; i++) { | |
2089 | struct ref_update *update = transaction->updates[i]; | |
2090 | ||
2091 | strbuf_reset(&buf); | |
2092 | strbuf_addf(&buf, "%s %s %s\n", | |
2093 | oid_to_hex(&update->old_oid), | |
2094 | oid_to_hex(&update->new_oid), | |
2095 | update->refname); | |
2096 | ||
2097 | if (write_in_full(proc.in, buf.buf, buf.len) < 0) { | |
4755d7df ÆAB |
2098 | if (errno != EPIPE) { |
2099 | /* Don't leak errno outside this API */ | |
2100 | errno = 0; | |
67541597 | 2101 | ret = -1; |
4755d7df | 2102 | } |
67541597 PS |
2103 | break; |
2104 | } | |
2105 | } | |
2106 | ||
2107 | close(proc.in); | |
2108 | sigchain_pop(SIGPIPE); | |
2109 | strbuf_release(&buf); | |
2110 | ||
2111 | ret |= finish_command(&proc); | |
2112 | return ret; | |
2113 | } | |
2114 | ||
30173b88 MH |
2115 | int ref_transaction_prepare(struct ref_transaction *transaction, |
2116 | struct strbuf *err) | |
127b42a1 | 2117 | { |
c0fe4e8b | 2118 | struct ref_store *refs = transaction->ref_store; |
67541597 | 2119 | int ret; |
127b42a1 | 2120 | |
8d4240d3 MH |
2121 | switch (transaction->state) { |
2122 | case REF_TRANSACTION_OPEN: | |
2123 | /* Good. */ | |
2124 | break; | |
30173b88 | 2125 | case REF_TRANSACTION_PREPARED: |
033abf97 | 2126 | BUG("prepare called twice on reference transaction"); |
30173b88 | 2127 | break; |
8d4240d3 | 2128 | case REF_TRANSACTION_CLOSED: |
033abf97 | 2129 | BUG("prepare called on a closed reference transaction"); |
8d4240d3 MH |
2130 | break; |
2131 | default: | |
033abf97 | 2132 | BUG("unexpected reference transaction state"); |
8d4240d3 MH |
2133 | break; |
2134 | } | |
2135 | ||
ecd81dfc | 2136 | if (refs->repo->objects->odb->disable_ref_updates) { |
d8f4481c JK |
2137 | strbuf_addstr(err, |
2138 | _("ref updates forbidden inside quarantine environment")); | |
2139 | return -1; | |
2140 | } | |
2141 | ||
67541597 PS |
2142 | ret = refs->be->transaction_prepare(refs, transaction, err); |
2143 | if (ret) | |
2144 | return ret; | |
2145 | ||
2146 | ret = run_transaction_hook(transaction, "prepared"); | |
2147 | if (ret) { | |
2148 | ref_transaction_abort(transaction, err); | |
2149 | die(_("ref updates aborted by hook")); | |
2150 | } | |
2151 | ||
2152 | return 0; | |
30173b88 MH |
2153 | } |
2154 | ||
2155 | int ref_transaction_abort(struct ref_transaction *transaction, | |
2156 | struct strbuf *err) | |
2157 | { | |
2158 | struct ref_store *refs = transaction->ref_store; | |
2159 | int ret = 0; | |
2160 | ||
2161 | switch (transaction->state) { | |
2162 | case REF_TRANSACTION_OPEN: | |
2163 | /* No need to abort explicitly. */ | |
2164 | break; | |
2165 | case REF_TRANSACTION_PREPARED: | |
2166 | ret = refs->be->transaction_abort(refs, transaction, err); | |
2167 | break; | |
2168 | case REF_TRANSACTION_CLOSED: | |
033abf97 | 2169 | BUG("abort called on a closed reference transaction"); |
30173b88 MH |
2170 | break; |
2171 | default: | |
033abf97 | 2172 | BUG("unexpected reference transaction state"); |
30173b88 MH |
2173 | break; |
2174 | } | |
2175 | ||
67541597 PS |
2176 | run_transaction_hook(transaction, "aborted"); |
2177 | ||
30173b88 MH |
2178 | ref_transaction_free(transaction); |
2179 | return ret; | |
2180 | } | |
2181 | ||
2182 | int ref_transaction_commit(struct ref_transaction *transaction, | |
2183 | struct strbuf *err) | |
2184 | { | |
2185 | struct ref_store *refs = transaction->ref_store; | |
2186 | int ret; | |
2187 | ||
2188 | switch (transaction->state) { | |
2189 | case REF_TRANSACTION_OPEN: | |
2190 | /* Need to prepare first. */ | |
2191 | ret = ref_transaction_prepare(transaction, err); | |
2192 | if (ret) | |
2193 | return ret; | |
2194 | break; | |
2195 | case REF_TRANSACTION_PREPARED: | |
2196 | /* Fall through to finish. */ | |
2197 | break; | |
2198 | case REF_TRANSACTION_CLOSED: | |
033abf97 | 2199 | BUG("commit called on a closed reference transaction"); |
30173b88 MH |
2200 | break; |
2201 | default: | |
033abf97 | 2202 | BUG("unexpected reference transaction state"); |
30173b88 MH |
2203 | break; |
2204 | } | |
2205 | ||
67541597 PS |
2206 | ret = refs->be->transaction_finish(refs, transaction, err); |
2207 | if (!ret) | |
2208 | run_transaction_hook(transaction, "committed"); | |
2209 | return ret; | |
127b42a1 | 2210 | } |
62665823 | 2211 | |
7d2df051 NTND |
2212 | int refs_verify_refname_available(struct ref_store *refs, |
2213 | const char *refname, | |
b05855b5 | 2214 | const struct string_list *extras, |
7d2df051 NTND |
2215 | const struct string_list *skip, |
2216 | struct strbuf *err) | |
62665823 | 2217 | { |
b05855b5 MH |
2218 | const char *slash; |
2219 | const char *extra_refname; | |
2220 | struct strbuf dirname = STRBUF_INIT; | |
2221 | struct strbuf referent = STRBUF_INIT; | |
2222 | struct object_id oid; | |
2223 | unsigned int type; | |
2224 | struct ref_iterator *iter; | |
2225 | int ok; | |
2226 | int ret = -1; | |
2227 | ||
2228 | /* | |
2229 | * For the sake of comments in this function, suppose that | |
2230 | * refname is "refs/foo/bar". | |
2231 | */ | |
2232 | ||
2233 | assert(err); | |
2234 | ||
2235 | strbuf_grow(&dirname, strlen(refname) + 1); | |
2236 | for (slash = strchr(refname, '/'); slash; slash = strchr(slash + 1, '/')) { | |
8b72fea7 HWN |
2237 | /* |
2238 | * Just saying "Is a directory" when we e.g. can't | |
2239 | * lock some multi-level ref isn't very informative, | |
2240 | * the user won't be told *what* is a directory, so | |
2241 | * let's not use strerror() below. | |
2242 | */ | |
2243 | int ignore_errno; | |
b05855b5 MH |
2244 | /* Expand dirname to the new prefix, not including the trailing slash: */ |
2245 | strbuf_add(&dirname, refname + dirname.len, slash - refname - dirname.len); | |
2246 | ||
2247 | /* | |
2248 | * We are still at a leading dir of the refname (e.g., | |
2249 | * "refs/foo"; if there is a reference with that name, | |
2250 | * it is a conflict, *unless* it is in skip. | |
2251 | */ | |
2252 | if (skip && string_list_has_string(skip, dirname.buf)) | |
2253 | continue; | |
2254 | ||
8b72fea7 HWN |
2255 | if (!refs_read_raw_ref(refs, dirname.buf, &oid, &referent, |
2256 | &type, &ignore_errno)) { | |
661558f0 | 2257 | strbuf_addf(err, _("'%s' exists; cannot create '%s'"), |
b05855b5 MH |
2258 | dirname.buf, refname); |
2259 | goto cleanup; | |
2260 | } | |
2261 | ||
2262 | if (extras && string_list_has_string(extras, dirname.buf)) { | |
661558f0 | 2263 | strbuf_addf(err, _("cannot process '%s' and '%s' at the same time"), |
b05855b5 MH |
2264 | refname, dirname.buf); |
2265 | goto cleanup; | |
2266 | } | |
2267 | } | |
2268 | ||
2269 | /* | |
2270 | * We are at the leaf of our refname (e.g., "refs/foo/bar"). | |
2271 | * There is no point in searching for a reference with that | |
2272 | * name, because a refname isn't considered to conflict with | |
2273 | * itself. But we still need to check for references whose | |
2274 | * names are in the "refs/foo/bar/" namespace, because they | |
2275 | * *do* conflict. | |
2276 | */ | |
2277 | strbuf_addstr(&dirname, refname + dirname.len); | |
2278 | strbuf_addch(&dirname, '/'); | |
2279 | ||
2280 | iter = refs_ref_iterator_begin(refs, dirname.buf, 0, | |
2281 | DO_FOR_EACH_INCLUDE_BROKEN); | |
2282 | while ((ok = ref_iterator_advance(iter)) == ITER_OK) { | |
2283 | if (skip && | |
2284 | string_list_has_string(skip, iter->refname)) | |
2285 | continue; | |
2286 | ||
661558f0 | 2287 | strbuf_addf(err, _("'%s' exists; cannot create '%s'"), |
b05855b5 MH |
2288 | iter->refname, refname); |
2289 | ref_iterator_abort(iter); | |
2290 | goto cleanup; | |
2291 | } | |
2292 | ||
2293 | if (ok != ITER_DONE) | |
033abf97 | 2294 | BUG("error while iterating over references"); |
b05855b5 MH |
2295 | |
2296 | extra_refname = find_descendant_ref(dirname.buf, extras, skip); | |
2297 | if (extra_refname) | |
661558f0 | 2298 | strbuf_addf(err, _("cannot process '%s' and '%s' at the same time"), |
b05855b5 MH |
2299 | refname, extra_refname); |
2300 | else | |
2301 | ret = 0; | |
2302 | ||
2303 | cleanup: | |
2304 | strbuf_release(&referent); | |
2305 | strbuf_release(&dirname); | |
2306 | return ret; | |
62665823 | 2307 | } |
e3688bd6 | 2308 | |
7d2df051 | 2309 | int refs_for_each_reflog(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
e3688bd6 | 2310 | { |
e3688bd6 | 2311 | struct ref_iterator *iter; |
4a6067cd | 2312 | struct do_for_each_ref_help hp = { fn, cb_data }; |
e3688bd6 DT |
2313 | |
2314 | iter = refs->be->reflog_iterator_begin(refs); | |
2315 | ||
4a6067cd SB |
2316 | return do_for_each_repo_ref_iterator(the_repository, iter, |
2317 | do_for_each_ref_helper, &hp); | |
e3688bd6 DT |
2318 | } |
2319 | ||
7d2df051 | 2320 | int for_each_reflog(each_ref_fn fn, void *cb_data) |
e3688bd6 | 2321 | { |
23a3f0cb | 2322 | return refs_for_each_reflog(get_main_ref_store(the_repository), fn, cb_data); |
7d2df051 | 2323 | } |
e3688bd6 | 2324 | |
7d2df051 NTND |
2325 | int refs_for_each_reflog_ent_reverse(struct ref_store *refs, |
2326 | const char *refname, | |
2327 | each_reflog_ent_fn fn, | |
2328 | void *cb_data) | |
2329 | { | |
e3688bd6 DT |
2330 | return refs->be->for_each_reflog_ent_reverse(refs, refname, |
2331 | fn, cb_data); | |
2332 | } | |
2333 | ||
7d2df051 NTND |
2334 | int for_each_reflog_ent_reverse(const char *refname, each_reflog_ent_fn fn, |
2335 | void *cb_data) | |
2336 | { | |
23a3f0cb | 2337 | return refs_for_each_reflog_ent_reverse(get_main_ref_store(the_repository), |
7d2df051 NTND |
2338 | refname, fn, cb_data); |
2339 | } | |
2340 | ||
2341 | int refs_for_each_reflog_ent(struct ref_store *refs, const char *refname, | |
2342 | each_reflog_ent_fn fn, void *cb_data) | |
2343 | { | |
2344 | return refs->be->for_each_reflog_ent(refs, refname, fn, cb_data); | |
2345 | } | |
2346 | ||
e3688bd6 DT |
2347 | int for_each_reflog_ent(const char *refname, each_reflog_ent_fn fn, |
2348 | void *cb_data) | |
2349 | { | |
23a3f0cb | 2350 | return refs_for_each_reflog_ent(get_main_ref_store(the_repository), refname, |
7d2df051 NTND |
2351 | fn, cb_data); |
2352 | } | |
e3688bd6 | 2353 | |
7d2df051 NTND |
2354 | int refs_reflog_exists(struct ref_store *refs, const char *refname) |
2355 | { | |
2356 | return refs->be->reflog_exists(refs, refname); | |
e3688bd6 DT |
2357 | } |
2358 | ||
2359 | int reflog_exists(const char *refname) | |
2360 | { | |
23a3f0cb | 2361 | return refs_reflog_exists(get_main_ref_store(the_repository), refname); |
7d2df051 | 2362 | } |
e3688bd6 | 2363 | |
7d2df051 | 2364 | int refs_create_reflog(struct ref_store *refs, const char *refname, |
7b089120 | 2365 | struct strbuf *err) |
7d2df051 | 2366 | { |
7b089120 | 2367 | return refs->be->create_reflog(refs, refname, err); |
e3688bd6 DT |
2368 | } |
2369 | ||
7b089120 | 2370 | int safe_create_reflog(const char *refname, struct strbuf *err) |
e3688bd6 | 2371 | { |
23a3f0cb | 2372 | return refs_create_reflog(get_main_ref_store(the_repository), refname, |
7b089120 | 2373 | err); |
7d2df051 | 2374 | } |
e3688bd6 | 2375 | |
7d2df051 NTND |
2376 | int refs_delete_reflog(struct ref_store *refs, const char *refname) |
2377 | { | |
2378 | return refs->be->delete_reflog(refs, refname); | |
e3688bd6 DT |
2379 | } |
2380 | ||
2381 | int delete_reflog(const char *refname) | |
2382 | { | |
23a3f0cb | 2383 | return refs_delete_reflog(get_main_ref_store(the_repository), refname); |
7d2df051 | 2384 | } |
e3688bd6 | 2385 | |
7d2df051 | 2386 | int refs_reflog_expire(struct ref_store *refs, |
cc40b5ce | 2387 | const char *refname, |
7d2df051 NTND |
2388 | unsigned int flags, |
2389 | reflog_expiry_prepare_fn prepare_fn, | |
2390 | reflog_expiry_should_prune_fn should_prune_fn, | |
2391 | reflog_expiry_cleanup_fn cleanup_fn, | |
2392 | void *policy_cb_data) | |
2393 | { | |
cc40b5ce | 2394 | return refs->be->reflog_expire(refs, refname, flags, |
7d2df051 NTND |
2395 | prepare_fn, should_prune_fn, |
2396 | cleanup_fn, policy_cb_data); | |
e3688bd6 DT |
2397 | } |
2398 | ||
cc40b5ce | 2399 | int reflog_expire(const char *refname, |
e3688bd6 DT |
2400 | unsigned int flags, |
2401 | reflog_expiry_prepare_fn prepare_fn, | |
2402 | reflog_expiry_should_prune_fn should_prune_fn, | |
2403 | reflog_expiry_cleanup_fn cleanup_fn, | |
2404 | void *policy_cb_data) | |
2405 | { | |
23a3f0cb | 2406 | return refs_reflog_expire(get_main_ref_store(the_repository), |
cc40b5ce | 2407 | refname, flags, |
7d2df051 NTND |
2408 | prepare_fn, should_prune_fn, |
2409 | cleanup_fn, policy_cb_data); | |
e3688bd6 | 2410 | } |
fc681463 DT |
2411 | |
2412 | int initial_ref_transaction_commit(struct ref_transaction *transaction, | |
2413 | struct strbuf *err) | |
2414 | { | |
c0fe4e8b | 2415 | struct ref_store *refs = transaction->ref_store; |
fc681463 DT |
2416 | |
2417 | return refs->be->initial_transaction_commit(refs, transaction, err); | |
2418 | } | |
a27dcf89 | 2419 | |
523fa69c | 2420 | int refs_delete_refs(struct ref_store *refs, const char *logmsg, |
64da4199 | 2421 | struct string_list *refnames, unsigned int flags) |
a27dcf89 | 2422 | { |
523fa69c JH |
2423 | char *msg; |
2424 | int retval; | |
2425 | ||
2426 | msg = normalize_reflog_message(logmsg); | |
2427 | retval = refs->be->delete_refs(refs, msg, refnames, flags); | |
2428 | free(msg); | |
2429 | return retval; | |
a27dcf89 | 2430 | } |
9b6b40d9 | 2431 | |
64da4199 MH |
2432 | int delete_refs(const char *msg, struct string_list *refnames, |
2433 | unsigned int flags) | |
9b6b40d9 | 2434 | { |
23a3f0cb | 2435 | return refs_delete_refs(get_main_ref_store(the_repository), msg, refnames, flags); |
7d2df051 | 2436 | } |
9b6b40d9 | 2437 | |
7d2df051 NTND |
2438 | int refs_rename_ref(struct ref_store *refs, const char *oldref, |
2439 | const char *newref, const char *logmsg) | |
2440 | { | |
523fa69c JH |
2441 | char *msg; |
2442 | int retval; | |
2443 | ||
2444 | msg = normalize_reflog_message(logmsg); | |
2445 | retval = refs->be->rename_ref(refs, oldref, newref, msg); | |
2446 | free(msg); | |
2447 | return retval; | |
9b6b40d9 | 2448 | } |
7d2df051 NTND |
2449 | |
2450 | int rename_ref(const char *oldref, const char *newref, const char *logmsg) | |
2451 | { | |
23a3f0cb | 2452 | return refs_rename_ref(get_main_ref_store(the_repository), oldref, newref, logmsg); |
7d2df051 | 2453 | } |
52d59cc6 SD |
2454 | |
2455 | int refs_copy_existing_ref(struct ref_store *refs, const char *oldref, | |
2456 | const char *newref, const char *logmsg) | |
2457 | { | |
523fa69c JH |
2458 | char *msg; |
2459 | int retval; | |
2460 | ||
2461 | msg = normalize_reflog_message(logmsg); | |
2462 | retval = refs->be->copy_ref(refs, oldref, newref, msg); | |
2463 | free(msg); | |
2464 | return retval; | |
52d59cc6 SD |
2465 | } |
2466 | ||
2467 | int copy_existing_ref(const char *oldref, const char *newref, const char *logmsg) | |
2468 | { | |
23a3f0cb | 2469 | return refs_copy_existing_ref(get_main_ref_store(the_repository), oldref, newref, logmsg); |
52d59cc6 | 2470 | } |