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Commit | Line | Data |
---|---|---|
7bd9bcf3 MH |
1 | /* |
2 | * The backend-independent part of the reference module. | |
3 | */ | |
4 | ||
e93fc5d7 | 5 | #include "git-compat-util.h" |
6c6ddf92 | 6 | #include "advice.h" |
36bf1958 | 7 | #include "alloc.h" |
b2141fc1 | 8 | #include "config.h" |
32a8f510 | 9 | #include "environment.h" |
7d4558c4 | 10 | #include "hashmap.h" |
f394e093 | 11 | #include "gettext.h" |
41771fa4 | 12 | #include "hex.h" |
697cc8ef | 13 | #include "lockfile.h" |
b05855b5 | 14 | #include "iterator.h" |
85023577 | 15 | #include "refs.h" |
4cb77009 | 16 | #include "refs/refs-internal.h" |
67541597 | 17 | #include "run-command.h" |
5e3aba33 | 18 | #include "hook.h" |
dabab1d6 | 19 | #include "object-name.h" |
a034e910 | 20 | #include "object-store-ll.h" |
cf0adba7 | 21 | #include "object.h" |
c339932b | 22 | #include "path.h" |
cf0adba7 | 23 | #include "tag.h" |
5d0bc90e | 24 | #include "submodule.h" |
17eff96b | 25 | #include "worktree.h" |
dbbcd44f | 26 | #include "strvec.h" |
23a3f0cb | 27 | #include "repository.h" |
e38da487 | 28 | #include "setup.h" |
67541597 | 29 | #include "sigchain.h" |
88c7b4c3 | 30 | #include "date.h" |
b9342b3f | 31 | #include "commit.h" |
dd77d587 | 32 | #include "wildmatch.h" |
d5ebb50d | 33 | #include "wrapper.h" |
3581d793 | 34 | |
3dce444f RS |
35 | /* |
36 | * List of all available backends | |
37 | */ | |
38 | static struct ref_storage_be *refs_backends = &refs_be_files; | |
39 | ||
40 | static struct ref_storage_be *find_ref_storage_backend(const char *name) | |
41 | { | |
42 | struct ref_storage_be *be; | |
43 | for (be = refs_backends; be; be = be->next) | |
44 | if (!strcmp(be->name, name)) | |
45 | return be; | |
46 | return NULL; | |
47 | } | |
48 | ||
bc5fd6d3 | 49 | /* |
dde8a902 DT |
50 | * How to handle various characters in refnames: |
51 | * 0: An acceptable character for refs | |
5e650228 JH |
52 | * 1: End-of-component |
53 | * 2: ., look for a preceding . to reject .. in refs | |
54 | * 3: {, look for a preceding @ to reject @{ in refs | |
53a8555e | 55 | * 4: A bad character: ASCII control characters, and |
cd377f45 JK |
56 | * ":", "?", "[", "\", "^", "~", SP, or TAB |
57 | * 5: *, reject unless REFNAME_REFSPEC_PATTERN is set | |
dde8a902 DT |
58 | */ |
59 | static unsigned char refname_disposition[256] = { | |
5e650228 JH |
60 | 1, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, |
61 | 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, | |
cd377f45 | 62 | 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5, 0, 0, 0, 2, 1, |
5e650228 | 63 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0, 0, 0, 4, |
dde8a902 | 64 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
5e650228 JH |
65 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 4, 0, 4, 0, |
66 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
67 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 4, 4 | |
dde8a902 DT |
68 | }; |
69 | ||
b9342b3f DS |
70 | struct ref_namespace_info ref_namespace[] = { |
71 | [NAMESPACE_HEAD] = { | |
72 | .ref = "HEAD", | |
73 | .decoration = DECORATION_REF_HEAD, | |
74 | .exact = 1, | |
75 | }, | |
76 | [NAMESPACE_BRANCHES] = { | |
77 | .ref = "refs/heads/", | |
78 | .decoration = DECORATION_REF_LOCAL, | |
79 | }, | |
80 | [NAMESPACE_TAGS] = { | |
81 | .ref = "refs/tags/", | |
82 | .decoration = DECORATION_REF_TAG, | |
83 | }, | |
84 | [NAMESPACE_REMOTE_REFS] = { | |
85 | /* | |
86 | * The default refspec for new remotes copies refs from | |
87 | * refs/heads/ on the remote into refs/remotes/<remote>/. | |
88 | * As such, "refs/remotes/" has special handling. | |
89 | */ | |
90 | .ref = "refs/remotes/", | |
91 | .decoration = DECORATION_REF_REMOTE, | |
92 | }, | |
93 | [NAMESPACE_STASH] = { | |
94 | /* | |
95 | * The single ref "refs/stash" stores the latest stash. | |
96 | * Older stashes can be found in the reflog. | |
97 | */ | |
98 | .ref = "refs/stash", | |
99 | .exact = 1, | |
100 | .decoration = DECORATION_REF_STASH, | |
101 | }, | |
102 | [NAMESPACE_REPLACE] = { | |
103 | /* | |
104 | * This namespace allows Git to act as if one object ID | |
105 | * points to the content of another. Unlike the other | |
106 | * ref namespaces, this one can be changed by the | |
107 | * GIT_REPLACE_REF_BASE environment variable. This | |
108 | * .namespace value will be overwritten in setup_git_env(). | |
109 | */ | |
110 | .ref = "refs/replace/", | |
111 | .decoration = DECORATION_GRAFTED, | |
112 | }, | |
113 | [NAMESPACE_NOTES] = { | |
114 | /* | |
115 | * The refs/notes/commit ref points to the tip of a | |
116 | * parallel commit history that adds metadata to commits | |
117 | * in the normal history. This ref can be overwritten | |
118 | * by the core.notesRef config variable or the | |
119 | * GIT_NOTES_REFS environment variable. | |
120 | */ | |
121 | .ref = "refs/notes/commit", | |
122 | .exact = 1, | |
123 | }, | |
124 | [NAMESPACE_PREFETCH] = { | |
125 | /* | |
126 | * Prefetch refs are written by the background 'fetch' | |
127 | * maintenance task. It allows faster foreground fetches | |
128 | * by advertising these previously-downloaded tips without | |
129 | * updating refs/remotes/ without user intervention. | |
130 | */ | |
131 | .ref = "refs/prefetch/", | |
132 | }, | |
133 | [NAMESPACE_REWRITTEN] = { | |
134 | /* | |
135 | * Rewritten refs are used by the 'label' command in the | |
136 | * sequencer. These are particularly useful during an | |
137 | * interactive rebase that uses the 'merge' command. | |
138 | */ | |
139 | .ref = "refs/rewritten/", | |
140 | }, | |
141 | }; | |
142 | ||
143 | void update_ref_namespace(enum ref_namespace namespace, char *ref) | |
144 | { | |
145 | struct ref_namespace_info *info = &ref_namespace[namespace]; | |
146 | if (info->ref_updated) | |
147 | free(info->ref); | |
148 | info->ref = ref; | |
149 | info->ref_updated = 1; | |
150 | } | |
151 | ||
dde8a902 DT |
152 | /* |
153 | * Try to read one refname component from the front of refname. | |
154 | * Return the length of the component found, or -1 if the component is | |
155 | * not legal. It is legal if it is something reasonable to have under | |
156 | * ".git/refs/"; We do not like it if: | |
bc5fd6d3 | 157 | * |
1de16aec | 158 | * - it begins with ".", or |
bc5fd6d3 | 159 | * - it has double dots "..", or |
53a8555e | 160 | * - it has ASCII control characters, or |
cd377f45 JK |
161 | * - it has ":", "?", "[", "\", "^", "~", SP, or TAB anywhere, or |
162 | * - it has "*" anywhere unless REFNAME_REFSPEC_PATTERN is set, or | |
53a8555e JK |
163 | * - it ends with a "/", or |
164 | * - it ends with ".lock", or | |
165 | * - it contains a "@{" portion | |
1de16aec NTND |
166 | * |
167 | * When sanitized is not NULL, instead of rejecting the input refname | |
168 | * as an error, try to come up with a usable replacement for the input | |
169 | * refname in it. | |
bc5fd6d3 | 170 | */ |
1de16aec NTND |
171 | static int check_refname_component(const char *refname, int *flags, |
172 | struct strbuf *sanitized) | |
bc5fd6d3 MH |
173 | { |
174 | const char *cp; | |
175 | char last = '\0'; | |
1de16aec NTND |
176 | size_t component_start = 0; /* garbage - not a reasonable initial value */ |
177 | ||
178 | if (sanitized) | |
179 | component_start = sanitized->len; | |
bc5fd6d3 MH |
180 | |
181 | for (cp = refname; ; cp++) { | |
dde8a902 DT |
182 | int ch = *cp & 255; |
183 | unsigned char disp = refname_disposition[ch]; | |
1de16aec NTND |
184 | |
185 | if (sanitized && disp != 1) | |
186 | strbuf_addch(sanitized, ch); | |
187 | ||
dde8a902 | 188 | switch (disp) { |
5e650228 | 189 | case 1: |
dde8a902 | 190 | goto out; |
5e650228 | 191 | case 2: |
1de16aec NTND |
192 | if (last == '.') { /* Refname contains "..". */ |
193 | if (sanitized) | |
194 | /* collapse ".." to single "." */ | |
195 | strbuf_setlen(sanitized, sanitized->len - 1); | |
196 | else | |
197 | return -1; | |
198 | } | |
dde8a902 | 199 | break; |
5e650228 | 200 | case 3: |
1de16aec NTND |
201 | if (last == '@') { /* Refname contains "@{". */ |
202 | if (sanitized) | |
203 | sanitized->buf[sanitized->len-1] = '-'; | |
204 | else | |
205 | return -1; | |
206 | } | |
bc5fd6d3 | 207 | break; |
5e650228 | 208 | case 4: |
1de16aec NTND |
209 | /* forbidden char */ |
210 | if (sanitized) | |
211 | sanitized->buf[sanitized->len-1] = '-'; | |
212 | else | |
213 | return -1; | |
214 | break; | |
cd377f45 | 215 | case 5: |
1de16aec NTND |
216 | if (!(*flags & REFNAME_REFSPEC_PATTERN)) { |
217 | /* refspec can't be a pattern */ | |
218 | if (sanitized) | |
219 | sanitized->buf[sanitized->len-1] = '-'; | |
220 | else | |
221 | return -1; | |
222 | } | |
cd377f45 JK |
223 | |
224 | /* | |
225 | * Unset the pattern flag so that we only accept | |
226 | * a single asterisk for one side of refspec. | |
227 | */ | |
228 | *flags &= ~ REFNAME_REFSPEC_PATTERN; | |
229 | break; | |
dde8a902 | 230 | } |
bc5fd6d3 MH |
231 | last = ch; |
232 | } | |
dde8a902 | 233 | out: |
bc5fd6d3 | 234 | if (cp == refname) |
dac529e4 | 235 | return 0; /* Component has zero length. */ |
1de16aec NTND |
236 | |
237 | if (refname[0] == '.') { /* Component starts with '.'. */ | |
238 | if (sanitized) | |
239 | sanitized->buf[component_start] = '-'; | |
240 | else | |
241 | return -1; | |
242 | } | |
7108ad23 | 243 | if (cp - refname >= LOCK_SUFFIX_LEN && |
1de16aec NTND |
244 | !memcmp(cp - LOCK_SUFFIX_LEN, LOCK_SUFFIX, LOCK_SUFFIX_LEN)) { |
245 | if (!sanitized) | |
246 | return -1; | |
247 | /* Refname ends with ".lock". */ | |
248 | while (strbuf_strip_suffix(sanitized, LOCK_SUFFIX)) { | |
249 | /* try again in case we have .lock.lock */ | |
250 | } | |
251 | } | |
bc5fd6d3 MH |
252 | return cp - refname; |
253 | } | |
254 | ||
1de16aec NTND |
255 | static int check_or_sanitize_refname(const char *refname, int flags, |
256 | struct strbuf *sanitized) | |
bc5fd6d3 MH |
257 | { |
258 | int component_len, component_count = 0; | |
259 | ||
1de16aec | 260 | if (!strcmp(refname, "@")) { |
9ba89f48 | 261 | /* Refname is a single character '@'. */ |
1de16aec NTND |
262 | if (sanitized) |
263 | strbuf_addch(sanitized, '-'); | |
264 | else | |
265 | return -1; | |
266 | } | |
9ba89f48 | 267 | |
bc5fd6d3 | 268 | while (1) { |
1de16aec NTND |
269 | if (sanitized && sanitized->len) |
270 | strbuf_complete(sanitized, '/'); | |
271 | ||
bc5fd6d3 | 272 | /* We are at the start of a path component. */ |
1de16aec NTND |
273 | component_len = check_refname_component(refname, &flags, |
274 | sanitized); | |
275 | if (sanitized && component_len == 0) | |
276 | ; /* OK, omit empty component */ | |
277 | else if (component_len <= 0) | |
cd377f45 JK |
278 | return -1; |
279 | ||
bc5fd6d3 MH |
280 | component_count++; |
281 | if (refname[component_len] == '\0') | |
282 | break; | |
283 | /* Skip to next component. */ | |
284 | refname += component_len + 1; | |
285 | } | |
286 | ||
1de16aec NTND |
287 | if (refname[component_len - 1] == '.') { |
288 | /* Refname ends with '.'. */ | |
289 | if (sanitized) | |
290 | ; /* omit ending dot */ | |
291 | else | |
292 | return -1; | |
293 | } | |
bc5fd6d3 MH |
294 | if (!(flags & REFNAME_ALLOW_ONELEVEL) && component_count < 2) |
295 | return -1; /* Refname has only one component. */ | |
296 | return 0; | |
297 | } | |
298 | ||
1de16aec NTND |
299 | int check_refname_format(const char *refname, int flags) |
300 | { | |
301 | return check_or_sanitize_refname(refname, flags, NULL); | |
302 | } | |
303 | ||
304 | void sanitize_refname_component(const char *refname, struct strbuf *out) | |
305 | { | |
306 | if (check_or_sanitize_refname(refname, REFNAME_ALLOW_ONELEVEL, out)) | |
307 | BUG("sanitizing refname '%s' check returned error", refname); | |
308 | } | |
309 | ||
4cb77009 | 310 | int refname_is_safe(const char *refname) |
d0f810f0 | 311 | { |
39950fef MH |
312 | const char *rest; |
313 | ||
314 | if (skip_prefix(refname, "refs/", &rest)) { | |
d0f810f0 RS |
315 | char *buf; |
316 | int result; | |
e40f3557 MH |
317 | size_t restlen = strlen(rest); |
318 | ||
319 | /* rest must not be empty, or start or end with "/" */ | |
320 | if (!restlen || *rest == '/' || rest[restlen - 1] == '/') | |
321 | return 0; | |
d0f810f0 | 322 | |
d0f810f0 RS |
323 | /* |
324 | * Does the refname try to escape refs/? | |
325 | * For example: refs/foo/../bar is safe but refs/foo/../../bar | |
326 | * is not. | |
327 | */ | |
e40f3557 MH |
328 | buf = xmallocz(restlen); |
329 | result = !normalize_path_copy(buf, rest) && !strcmp(buf, rest); | |
d0f810f0 RS |
330 | free(buf); |
331 | return result; | |
332 | } | |
35db25c6 MH |
333 | |
334 | do { | |
d0f810f0 RS |
335 | if (!isupper(*refname) && *refname != '_') |
336 | return 0; | |
337 | refname++; | |
35db25c6 | 338 | } while (*refname); |
d0f810f0 RS |
339 | return 1; |
340 | } | |
341 | ||
67be7c5a MH |
342 | /* |
343 | * Return true if refname, which has the specified oid and flags, can | |
344 | * be resolved to an object in the database. If the referred-to object | |
345 | * does not exist, emit a warning and return false. | |
346 | */ | |
347 | int ref_resolves_to_object(const char *refname, | |
9bc45a28 | 348 | struct repository *repo, |
67be7c5a MH |
349 | const struct object_id *oid, |
350 | unsigned int flags) | |
351 | { | |
352 | if (flags & REF_ISBROKEN) | |
353 | return 0; | |
9bc45a28 | 354 | if (!repo_has_object_file(repo, oid)) { |
661558f0 | 355 | error(_("%s does not point to a valid object!"), refname); |
67be7c5a MH |
356 | return 0; |
357 | } | |
358 | return 1; | |
359 | } | |
360 | ||
7d2df051 NTND |
361 | char *refs_resolve_refdup(struct ref_store *refs, |
362 | const char *refname, int resolve_flags, | |
0f2dc722 | 363 | struct object_id *oid, int *flags) |
7d2df051 NTND |
364 | { |
365 | const char *result; | |
366 | ||
367 | result = refs_resolve_ref_unsafe(refs, refname, resolve_flags, | |
ce14de03 | 368 | oid, flags); |
7d2df051 NTND |
369 | return xstrdup_or_null(result); |
370 | } | |
371 | ||
7bd9bcf3 | 372 | char *resolve_refdup(const char *refname, int resolve_flags, |
0f2dc722 | 373 | struct object_id *oid, int *flags) |
e1e22e37 | 374 | { |
23a3f0cb | 375 | return refs_resolve_refdup(get_main_ref_store(the_repository), |
7d2df051 | 376 | refname, resolve_flags, |
0f2dc722 | 377 | oid, flags); |
cddc4258 MH |
378 | } |
379 | ||
7bd9bcf3 MH |
380 | /* The argument to filter_refs */ |
381 | struct ref_filter { | |
382 | const char *pattern; | |
9ab9b5df | 383 | const char *prefix; |
7bd9bcf3 MH |
384 | each_ref_fn *fn; |
385 | void *cb_data; | |
386 | }; | |
432ad41e | 387 | |
76887df0 | 388 | int read_ref_full(const char *refname, int resolve_flags, struct object_id *oid, int *flags) |
732134ed | 389 | { |
76887df0 ÆAB |
390 | struct ref_store *refs = get_main_ref_store(the_repository); |
391 | ||
f1da24ca | 392 | if (refs_resolve_ref_unsafe(refs, refname, resolve_flags, |
ce14de03 | 393 | oid, flags)) |
7bd9bcf3 MH |
394 | return 0; |
395 | return -1; | |
732134ed MH |
396 | } |
397 | ||
34c290a6 | 398 | int read_ref(const char *refname, struct object_id *oid) |
cddc4258 | 399 | { |
34c290a6 | 400 | return read_ref_full(refname, RESOLVE_REF_READING, oid, NULL); |
c774aab9 JP |
401 | } |
402 | ||
3f9f1acc | 403 | int refs_ref_exists(struct ref_store *refs, const char *refname) |
b3cd33d0 | 404 | { |
f1da24ca | 405 | return !!refs_resolve_ref_unsafe(refs, refname, RESOLVE_REF_READING, |
ce14de03 | 406 | NULL, NULL); |
b3cd33d0 NTND |
407 | } |
408 | ||
7bd9bcf3 | 409 | int ref_exists(const char *refname) |
bc5fd6d3 | 410 | { |
b3cd33d0 | 411 | return refs_ref_exists(get_main_ref_store(the_repository), refname); |
bc5fd6d3 MH |
412 | } |
413 | ||
7bd9bcf3 MH |
414 | static int filter_refs(const char *refname, const struct object_id *oid, |
415 | int flags, void *data) | |
432ad41e | 416 | { |
7bd9bcf3 MH |
417 | struct ref_filter *filter = (struct ref_filter *)data; |
418 | ||
55d34269 | 419 | if (wildmatch(filter->pattern, refname, 0)) |
7bd9bcf3 | 420 | return 0; |
9ab9b5df RA |
421 | if (filter->prefix) |
422 | skip_prefix(refname, filter->prefix, &refname); | |
7bd9bcf3 | 423 | return filter->fn(refname, oid, flags, filter->cb_data); |
432ad41e MH |
424 | } |
425 | ||
ac2ed0d7 | 426 | enum peel_status peel_object(const struct object_id *name, struct object_id *oid) |
c774aab9 | 427 | { |
45a187cc | 428 | struct object *o = lookup_unknown_object(the_repository, name); |
c774aab9 | 429 | |
7bd9bcf3 | 430 | if (o->type == OBJ_NONE) { |
0df8e965 | 431 | int type = oid_object_info(the_repository, name, NULL); |
6da43d93 | 432 | if (type < 0 || !object_as_type(o, type, 0)) |
7bd9bcf3 MH |
433 | return PEEL_INVALID; |
434 | } | |
bc5fd6d3 | 435 | |
7bd9bcf3 MH |
436 | if (o->type != OBJ_TAG) |
437 | return PEEL_NON_TAG; | |
e1980c9d | 438 | |
7bd9bcf3 MH |
439 | o = deref_tag_noverify(o); |
440 | if (!o) | |
441 | return PEEL_INVALID; | |
442 | ||
ac2ed0d7 | 443 | oidcpy(oid, &o->oid); |
7bd9bcf3 | 444 | return PEEL_PEELED; |
e1980c9d JH |
445 | } |
446 | ||
7bd9bcf3 MH |
447 | struct warn_if_dangling_data { |
448 | FILE *fp; | |
449 | const char *refname; | |
450 | const struct string_list *refnames; | |
451 | const char *msg_fmt; | |
452 | }; | |
bc5fd6d3 | 453 | |
63e14ee2 | 454 | static int warn_if_dangling_symref(const char *refname, |
5cf88fd8 | 455 | const struct object_id *oid UNUSED, |
7bd9bcf3 MH |
456 | int flags, void *cb_data) |
457 | { | |
458 | struct warn_if_dangling_data *d = cb_data; | |
459 | const char *resolves_to; | |
bc5fd6d3 | 460 | |
7bd9bcf3 MH |
461 | if (!(flags & REF_ISSYMREF)) |
462 | return 0; | |
bc5fd6d3 | 463 | |
744c040b | 464 | resolves_to = resolve_ref_unsafe(refname, 0, NULL, NULL); |
7bd9bcf3 MH |
465 | if (!resolves_to |
466 | || (d->refname | |
467 | ? strcmp(resolves_to, d->refname) | |
468 | : !string_list_has_string(d->refnames, resolves_to))) { | |
469 | return 0; | |
470 | } | |
bc5fd6d3 | 471 | |
7bd9bcf3 MH |
472 | fprintf(d->fp, d->msg_fmt, refname); |
473 | fputc('\n', d->fp); | |
474 | return 0; | |
bc5fd6d3 MH |
475 | } |
476 | ||
7bd9bcf3 | 477 | void warn_dangling_symref(FILE *fp, const char *msg_fmt, const char *refname) |
f348ac92 | 478 | { |
7bd9bcf3 MH |
479 | struct warn_if_dangling_data data; |
480 | ||
481 | data.fp = fp; | |
482 | data.refname = refname; | |
483 | data.refnames = NULL; | |
484 | data.msg_fmt = msg_fmt; | |
485 | for_each_rawref(warn_if_dangling_symref, &data); | |
f348ac92 MH |
486 | } |
487 | ||
7bd9bcf3 | 488 | void warn_dangling_symrefs(FILE *fp, const char *msg_fmt, const struct string_list *refnames) |
432ad41e | 489 | { |
7bd9bcf3 | 490 | struct warn_if_dangling_data data; |
432ad41e | 491 | |
7bd9bcf3 MH |
492 | data.fp = fp; |
493 | data.refname = NULL; | |
494 | data.refnames = refnames; | |
495 | data.msg_fmt = msg_fmt; | |
496 | for_each_rawref(warn_if_dangling_symref, &data); | |
432ad41e MH |
497 | } |
498 | ||
7d2df051 NTND |
499 | int refs_for_each_tag_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
500 | { | |
501 | return refs_for_each_ref_in(refs, "refs/tags/", fn, cb_data); | |
502 | } | |
503 | ||
7bd9bcf3 | 504 | int for_each_tag_ref(each_ref_fn fn, void *cb_data) |
432ad41e | 505 | { |
23a3f0cb | 506 | return refs_for_each_tag_ref(get_main_ref_store(the_repository), fn, cb_data); |
432ad41e MH |
507 | } |
508 | ||
7d2df051 NTND |
509 | int refs_for_each_branch_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
510 | { | |
511 | return refs_for_each_ref_in(refs, "refs/heads/", fn, cb_data); | |
432ad41e MH |
512 | } |
513 | ||
7bd9bcf3 | 514 | int for_each_branch_ref(each_ref_fn fn, void *cb_data) |
432ad41e | 515 | { |
23a3f0cb | 516 | return refs_for_each_branch_ref(get_main_ref_store(the_repository), fn, cb_data); |
432ad41e MH |
517 | } |
518 | ||
7d2df051 NTND |
519 | int refs_for_each_remote_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
520 | { | |
521 | return refs_for_each_ref_in(refs, "refs/remotes/", fn, cb_data); | |
202a56a9 | 522 | } |
432ad41e | 523 | |
7bd9bcf3 | 524 | int for_each_remote_ref(each_ref_fn fn, void *cb_data) |
e9c4c111 | 525 | { |
23a3f0cb | 526 | return refs_for_each_remote_ref(get_main_ref_store(the_repository), fn, cb_data); |
202a56a9 MH |
527 | } |
528 | ||
7bd9bcf3 MH |
529 | int head_ref_namespaced(each_ref_fn fn, void *cb_data) |
530 | { | |
531 | struct strbuf buf = STRBUF_INIT; | |
532 | int ret = 0; | |
533 | struct object_id oid; | |
534 | int flag; | |
c774aab9 | 535 | |
7bd9bcf3 | 536 | strbuf_addf(&buf, "%sHEAD", get_git_namespace()); |
34c290a6 | 537 | if (!read_ref_full(buf.buf, RESOLVE_REF_READING, &oid, &flag)) |
7bd9bcf3 MH |
538 | ret = fn(buf.buf, &oid, flag, cb_data); |
539 | strbuf_release(&buf); | |
c774aab9 | 540 | |
7bd9bcf3 | 541 | return ret; |
e9c4c111 | 542 | } |
c774aab9 | 543 | |
65516f58 RA |
544 | void normalize_glob_ref(struct string_list_item *item, const char *prefix, |
545 | const char *pattern) | |
546 | { | |
547 | struct strbuf normalized_pattern = STRBUF_INIT; | |
548 | ||
549 | if (*pattern == '/') | |
550 | BUG("pattern must not start with '/'"); | |
551 | ||
b877e617 | 552 | if (prefix) |
65516f58 | 553 | strbuf_addstr(&normalized_pattern, prefix); |
b877e617 DS |
554 | else if (!starts_with(pattern, "refs/") && |
555 | strcmp(pattern, "HEAD")) | |
65516f58 | 556 | strbuf_addstr(&normalized_pattern, "refs/"); |
b877e617 DS |
557 | /* |
558 | * NEEDSWORK: Special case other symrefs such as REBASE_HEAD, | |
559 | * MERGE_HEAD, etc. | |
560 | */ | |
561 | ||
65516f58 RA |
562 | strbuf_addstr(&normalized_pattern, pattern); |
563 | strbuf_strip_suffix(&normalized_pattern, "/"); | |
564 | ||
565 | item->string = strbuf_detach(&normalized_pattern, NULL); | |
566 | item->util = has_glob_specials(pattern) ? NULL : item->string; | |
567 | strbuf_release(&normalized_pattern); | |
568 | } | |
569 | ||
7bd9bcf3 MH |
570 | int for_each_glob_ref_in(each_ref_fn fn, const char *pattern, |
571 | const char *prefix, void *cb_data) | |
662428f4 | 572 | { |
7bd9bcf3 MH |
573 | struct strbuf real_pattern = STRBUF_INIT; |
574 | struct ref_filter filter; | |
575 | int ret; | |
d08bae7e | 576 | |
59556548 | 577 | if (!prefix && !starts_with(pattern, "refs/")) |
d08bae7e | 578 | strbuf_addstr(&real_pattern, "refs/"); |
b09fe971 IL |
579 | else if (prefix) |
580 | strbuf_addstr(&real_pattern, prefix); | |
d08bae7e IL |
581 | strbuf_addstr(&real_pattern, pattern); |
582 | ||
894a9d33 | 583 | if (!has_glob_specials(pattern)) { |
9517e6b8 | 584 | /* Append implied '/' '*' if not present. */ |
00b6c178 | 585 | strbuf_complete(&real_pattern, '/'); |
d08bae7e IL |
586 | /* No need to check for '*', there is none. */ |
587 | strbuf_addch(&real_pattern, '*'); | |
588 | } | |
589 | ||
590 | filter.pattern = real_pattern.buf; | |
9ab9b5df | 591 | filter.prefix = prefix; |
d08bae7e IL |
592 | filter.fn = fn; |
593 | filter.cb_data = cb_data; | |
594 | ret = for_each_ref(filter_refs, &filter); | |
595 | ||
596 | strbuf_release(&real_pattern); | |
597 | return ret; | |
598 | } | |
599 | ||
b09fe971 IL |
600 | int for_each_glob_ref(each_ref_fn fn, const char *pattern, void *cb_data) |
601 | { | |
602 | return for_each_glob_ref_in(fn, pattern, NULL, cb_data); | |
603 | } | |
604 | ||
4577e483 | 605 | const char *prettify_refname(const char *name) |
a9c37a72 | 606 | { |
3e5b36c6 SG |
607 | if (skip_prefix(name, "refs/heads/", &name) || |
608 | skip_prefix(name, "refs/tags/", &name) || | |
609 | skip_prefix(name, "refs/remotes/", &name)) | |
610 | ; /* nothing */ | |
611 | return name; | |
a9c37a72 DB |
612 | } |
613 | ||
54457fe5 | 614 | static const char *ref_rev_parse_rules[] = { |
79803322 SP |
615 | "%.*s", |
616 | "refs/%.*s", | |
617 | "refs/tags/%.*s", | |
618 | "refs/heads/%.*s", | |
619 | "refs/remotes/%.*s", | |
620 | "refs/remotes/%.*s/HEAD", | |
621 | NULL | |
622 | }; | |
623 | ||
60650a48 JH |
624 | #define NUM_REV_PARSE_RULES (ARRAY_SIZE(ref_rev_parse_rules) - 1) |
625 | ||
626 | /* | |
627 | * Is it possible that the caller meant full_name with abbrev_name? | |
628 | * If so return a non-zero value to signal "yes"; the magnitude of | |
629 | * the returned value gives the precedence used for disambiguation. | |
630 | * | |
631 | * If abbrev_name cannot mean full_name, return 0. | |
632 | */ | |
54457fe5 | 633 | int refname_match(const char *abbrev_name, const char *full_name) |
79803322 SP |
634 | { |
635 | const char **p; | |
636 | const int abbrev_name_len = strlen(abbrev_name); | |
60650a48 | 637 | const int num_rules = NUM_REV_PARSE_RULES; |
79803322 | 638 | |
60650a48 JH |
639 | for (p = ref_rev_parse_rules; *p; p++) |
640 | if (!strcmp(full_name, mkpath(*p, abbrev_name_len, abbrev_name))) | |
641 | return &ref_rev_parse_rules[num_rules] - p; | |
79803322 SP |
642 | |
643 | return 0; | |
644 | } | |
645 | ||
b4be7410 BW |
646 | /* |
647 | * Given a 'prefix' expand it by the rules in 'ref_rev_parse_rules' and add | |
648 | * the results to 'prefixes' | |
649 | */ | |
c972bf4c | 650 | void expand_ref_prefix(struct strvec *prefixes, const char *prefix) |
b4be7410 BW |
651 | { |
652 | const char **p; | |
653 | int len = strlen(prefix); | |
654 | ||
655 | for (p = ref_rev_parse_rules; *p; p++) | |
c972bf4c | 656 | strvec_pushf(prefixes, *p, len, prefix); |
b4be7410 BW |
657 | } |
658 | ||
675704c7 JS |
659 | static const char default_branch_name_advice[] = N_( |
660 | "Using '%s' as the name for the initial branch. This default branch name\n" | |
661 | "is subject to change. To configure the initial branch name to use in all\n" | |
662 | "of your new repositories, which will suppress this warning, call:\n" | |
663 | "\n" | |
664 | "\tgit config --global init.defaultBranch <name>\n" | |
665 | "\n" | |
666 | "Names commonly chosen instead of 'master' are 'main', 'trunk' and\n" | |
667 | "'development'. The just-created branch can be renamed via this command:\n" | |
668 | "\n" | |
669 | "\tgit branch -m <name>\n" | |
670 | ); | |
671 | ||
cc0f13c5 | 672 | char *repo_default_branch_name(struct repository *r, int quiet) |
8747ebb7 DGW |
673 | { |
674 | const char *config_key = "init.defaultbranch"; | |
675 | const char *config_display_key = "init.defaultBranch"; | |
676 | char *ret = NULL, *full_ref; | |
704fed9e | 677 | const char *env = getenv("GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME"); |
8747ebb7 | 678 | |
704fed9e JS |
679 | if (env && *env) |
680 | ret = xstrdup(env); | |
681 | else if (repo_config_get_string(r, config_key, &ret) < 0) | |
8747ebb7 DGW |
682 | die(_("could not retrieve `%s`"), config_display_key); |
683 | ||
675704c7 | 684 | if (!ret) { |
8747ebb7 | 685 | ret = xstrdup("master"); |
675704c7 JS |
686 | if (!quiet) |
687 | advise(_(default_branch_name_advice), ret); | |
688 | } | |
8747ebb7 DGW |
689 | |
690 | full_ref = xstrfmt("refs/heads/%s", ret); | |
691 | if (check_refname_format(full_ref, 0)) | |
692 | die(_("invalid branch name: %s = %s"), config_display_key, ret); | |
693 | free(full_ref); | |
694 | ||
695 | return ret; | |
696 | } | |
697 | ||
cc0f13c5 | 698 | const char *git_default_branch_name(int quiet) |
8747ebb7 DGW |
699 | { |
700 | static char *ret; | |
701 | ||
702 | if (!ret) | |
cc0f13c5 | 703 | ret = repo_default_branch_name(the_repository, quiet); |
8747ebb7 DGW |
704 | |
705 | return ret; | |
706 | } | |
707 | ||
ff74f7f1 JH |
708 | /* |
709 | * *string and *len will only be substituted, and *string returned (for | |
710 | * later free()ing) if the string passed in is a magic short-hand form | |
711 | * to name a branch. | |
712 | */ | |
8f56e9d4 | 713 | static char *substitute_branch_name(struct repository *r, |
f24c30e0 JT |
714 | const char **string, int *len, |
715 | int nonfatal_dangling_mark) | |
ff74f7f1 JH |
716 | { |
717 | struct strbuf buf = STRBUF_INIT; | |
f24c30e0 JT |
718 | struct interpret_branch_name_options options = { |
719 | .nonfatal_dangling_mark = nonfatal_dangling_mark | |
720 | }; | |
a4f66a78 | 721 | int ret = repo_interpret_branch_name(r, *string, *len, &buf, &options); |
ff74f7f1 JH |
722 | |
723 | if (ret == *len) { | |
724 | size_t size; | |
725 | *string = strbuf_detach(&buf, &size); | |
726 | *len = size; | |
727 | return (char *)*string; | |
728 | } | |
729 | ||
730 | return NULL; | |
731 | } | |
732 | ||
d8984c53 | 733 | int repo_dwim_ref(struct repository *r, const char *str, int len, |
f24c30e0 | 734 | struct object_id *oid, char **ref, int nonfatal_dangling_mark) |
ff74f7f1 | 735 | { |
f24c30e0 JT |
736 | char *last_branch = substitute_branch_name(r, &str, &len, |
737 | nonfatal_dangling_mark); | |
d8984c53 | 738 | int refs_found = expand_ref(r, str, len, oid, ref); |
41da7111 NTND |
739 | free(last_branch); |
740 | return refs_found; | |
741 | } | |
742 | ||
0b1dbf53 NTND |
743 | int expand_ref(struct repository *repo, const char *str, int len, |
744 | struct object_id *oid, char **ref) | |
41da7111 | 745 | { |
ff74f7f1 JH |
746 | const char **p, *r; |
747 | int refs_found = 0; | |
6cd4a898 | 748 | struct strbuf fullref = STRBUF_INIT; |
ff74f7f1 JH |
749 | |
750 | *ref = NULL; | |
751 | for (p = ref_rev_parse_rules; *p; p++) { | |
cca5fa64 | 752 | struct object_id oid_from_ref; |
753 | struct object_id *this_result; | |
ff74f7f1 | 754 | int flag; |
6582bd31 | 755 | struct ref_store *refs = get_main_ref_store(repo); |
ff74f7f1 | 756 | |
cca5fa64 | 757 | this_result = refs_found ? &oid_from_ref : oid; |
6cd4a898 JK |
758 | strbuf_reset(&fullref); |
759 | strbuf_addf(&fullref, *p, len, str); | |
f1da24ca | 760 | r = refs_resolve_ref_unsafe(refs, fullref.buf, |
6582bd31 | 761 | RESOLVE_REF_READING, |
ce14de03 | 762 | this_result, &flag); |
ff74f7f1 JH |
763 | if (r) { |
764 | if (!refs_found++) | |
765 | *ref = xstrdup(r); | |
766 | if (!warn_ambiguous_refs) | |
767 | break; | |
6cd4a898 | 768 | } else if ((flag & REF_ISSYMREF) && strcmp(fullref.buf, "HEAD")) { |
661558f0 | 769 | warning(_("ignoring dangling symref %s"), fullref.buf); |
6cd4a898 | 770 | } else if ((flag & REF_ISBROKEN) && strchr(fullref.buf, '/')) { |
661558f0 | 771 | warning(_("ignoring broken ref %s"), fullref.buf); |
55956350 | 772 | } |
ff74f7f1 | 773 | } |
6cd4a898 | 774 | strbuf_release(&fullref); |
ff74f7f1 JH |
775 | return refs_found; |
776 | } | |
777 | ||
56700903 NTND |
778 | int repo_dwim_log(struct repository *r, const char *str, int len, |
779 | struct object_id *oid, char **log) | |
ff74f7f1 | 780 | { |
56700903 | 781 | struct ref_store *refs = get_main_ref_store(r); |
f24c30e0 | 782 | char *last_branch = substitute_branch_name(r, &str, &len, 0); |
ff74f7f1 JH |
783 | const char **p; |
784 | int logs_found = 0; | |
6cd4a898 | 785 | struct strbuf path = STRBUF_INIT; |
ff74f7f1 JH |
786 | |
787 | *log = NULL; | |
788 | for (p = ref_rev_parse_rules; *p; p++) { | |
334dc52f | 789 | struct object_id hash; |
ff74f7f1 JH |
790 | const char *ref, *it; |
791 | ||
6cd4a898 JK |
792 | strbuf_reset(&path); |
793 | strbuf_addf(&path, *p, len, str); | |
56700903 NTND |
794 | ref = refs_resolve_ref_unsafe(refs, path.buf, |
795 | RESOLVE_REF_READING, | |
ce14de03 | 796 | oid ? &hash : NULL, NULL); |
ff74f7f1 JH |
797 | if (!ref) |
798 | continue; | |
56700903 | 799 | if (refs_reflog_exists(refs, path.buf)) |
6cd4a898 | 800 | it = path.buf; |
56700903 NTND |
801 | else if (strcmp(ref, path.buf) && |
802 | refs_reflog_exists(refs, ref)) | |
ff74f7f1 JH |
803 | it = ref; |
804 | else | |
805 | continue; | |
806 | if (!logs_found++) { | |
807 | *log = xstrdup(it); | |
6f45ec88 ÆAB |
808 | if (oid) |
809 | oidcpy(oid, &hash); | |
ff74f7f1 | 810 | } |
7bd9bcf3 MH |
811 | if (!warn_ambiguous_refs) |
812 | break; | |
c0277d15 | 813 | } |
6cd4a898 | 814 | strbuf_release(&path); |
7bd9bcf3 MH |
815 | free(last_branch); |
816 | return logs_found; | |
2ddb5d17 BK |
817 | } |
818 | ||
56700903 NTND |
819 | int dwim_log(const char *str, int len, struct object_id *oid, char **log) |
820 | { | |
821 | return repo_dwim_log(the_repository, str, len, oid, log); | |
822 | } | |
823 | ||
71e54734 | 824 | int is_per_worktree_ref(const char *refname) |
266b1827 | 825 | { |
55dd8b91 HWN |
826 | return starts_with(refname, "refs/worktree/") || |
827 | starts_with(refname, "refs/bisect/") || | |
828 | starts_with(refname, "refs/rewritten/"); | |
266b1827 DT |
829 | } |
830 | ||
831 | static int is_pseudoref_syntax(const char *refname) | |
832 | { | |
833 | const char *c; | |
834 | ||
835 | for (c = refname; *c; c++) { | |
836 | if (!isupper(*c) && *c != '-' && *c != '_') | |
837 | return 0; | |
838 | } | |
839 | ||
71e54734 HWN |
840 | /* |
841 | * HEAD is not a pseudoref, but it certainly uses the | |
842 | * pseudoref syntax. | |
843 | */ | |
266b1827 DT |
844 | return 1; |
845 | } | |
846 | ||
71e54734 HWN |
847 | static int is_current_worktree_ref(const char *ref) { |
848 | return is_pseudoref_syntax(ref) || is_per_worktree_ref(ref); | |
3a3b9d8c NTND |
849 | } |
850 | ||
71e54734 HWN |
851 | enum ref_worktree_type parse_worktree_ref(const char *maybe_worktree_ref, |
852 | const char **worktree_name, int *worktree_name_length, | |
853 | const char **bare_refname) | |
3a3b9d8c | 854 | { |
71e54734 HWN |
855 | const char *name_dummy; |
856 | int name_length_dummy; | |
857 | const char *ref_dummy; | |
3a3b9d8c | 858 | |
71e54734 HWN |
859 | if (!worktree_name) |
860 | worktree_name = &name_dummy; | |
861 | if (!worktree_name_length) | |
862 | worktree_name_length = &name_length_dummy; | |
863 | if (!bare_refname) | |
864 | bare_refname = &ref_dummy; | |
865 | ||
866 | if (skip_prefix(maybe_worktree_ref, "worktrees/", bare_refname)) { | |
867 | const char *slash = strchr(*bare_refname, '/'); | |
868 | ||
869 | *worktree_name = *bare_refname; | |
870 | if (!slash) { | |
871 | *worktree_name_length = strlen(*worktree_name); | |
872 | ||
873 | /* This is an error condition, and the caller tell because the bare_refname is "" */ | |
874 | *bare_refname = *worktree_name + *worktree_name_length; | |
875 | return REF_WORKTREE_OTHER; | |
876 | } | |
877 | ||
878 | *worktree_name_length = slash - *bare_refname; | |
879 | *bare_refname = slash + 1; | |
880 | ||
881 | if (is_current_worktree_ref(*bare_refname)) | |
882 | return REF_WORKTREE_OTHER; | |
883 | } | |
884 | ||
885 | *worktree_name = NULL; | |
886 | *worktree_name_length = 0; | |
887 | ||
888 | if (skip_prefix(maybe_worktree_ref, "main-worktree/", bare_refname) | |
889 | && is_current_worktree_ref(*bare_refname)) | |
890 | return REF_WORKTREE_MAIN; | |
891 | ||
892 | *bare_refname = maybe_worktree_ref; | |
893 | if (is_current_worktree_ref(maybe_worktree_ref)) | |
894 | return REF_WORKTREE_CURRENT; | |
895 | ||
896 | return REF_WORKTREE_SHARED; | |
266b1827 DT |
897 | } |
898 | ||
4ff0f01c MH |
899 | long get_files_ref_lock_timeout_ms(void) |
900 | { | |
901 | static int configured = 0; | |
902 | ||
903 | /* The default timeout is 100 ms: */ | |
904 | static int timeout_ms = 100; | |
905 | ||
906 | if (!configured) { | |
907 | git_config_get_int("core.filesreflocktimeout", &timeout_ms); | |
908 | configured = 1; | |
909 | } | |
910 | ||
911 | return timeout_ms; | |
912 | } | |
913 | ||
c0fe4e8b NTND |
914 | int refs_delete_ref(struct ref_store *refs, const char *msg, |
915 | const char *refname, | |
2616a5e5 | 916 | const struct object_id *old_oid, |
c0fe4e8b | 917 | unsigned int flags) |
41b625b0 | 918 | { |
7521cc46 | 919 | struct ref_transaction *transaction; |
a4c653df | 920 | struct strbuf err = STRBUF_INIT; |
8b5157e4 | 921 | |
c6da34a6 | 922 | transaction = ref_store_transaction_begin(refs, &err); |
7521cc46 | 923 | if (!transaction || |
89f3bbdd | 924 | ref_transaction_delete(transaction, refname, old_oid, |
755b49ae | 925 | flags, msg, &err) || |
db7516ab | 926 | ref_transaction_commit(transaction, &err)) { |
7521cc46 RS |
927 | error("%s", err.buf); |
928 | ref_transaction_free(transaction); | |
929 | strbuf_release(&err); | |
c0277d15 | 930 | return 1; |
41b625b0 | 931 | } |
7bd9bcf3 MH |
932 | ref_transaction_free(transaction); |
933 | strbuf_release(&err); | |
b531394d BC |
934 | return 0; |
935 | } | |
41b625b0 | 936 | |
c0fe4e8b | 937 | int delete_ref(const char *msg, const char *refname, |
2616a5e5 | 938 | const struct object_id *old_oid, unsigned int flags) |
c0fe4e8b | 939 | { |
23a3f0cb | 940 | return refs_delete_ref(get_main_ref_store(the_repository), msg, refname, |
2616a5e5 | 941 | old_oid, flags); |
c0fe4e8b NTND |
942 | } |
943 | ||
523fa69c | 944 | static void copy_reflog_msg(struct strbuf *sb, const char *msg) |
0ec29a47 | 945 | { |
0ec29a47 JH |
946 | char c; |
947 | int wasspace = 1; | |
8b5157e4 | 948 | |
0ec29a47 JH |
949 | while ((c = *msg++)) { |
950 | if (wasspace && isspace(c)) | |
951 | continue; | |
952 | wasspace = isspace(c); | |
953 | if (wasspace) | |
954 | c = ' '; | |
80a6c207 | 955 | strbuf_addch(sb, c); |
a4c653df | 956 | } |
80a6c207 | 957 | strbuf_rtrim(sb); |
0ec29a47 | 958 | } |
8b5157e4 | 959 | |
523fa69c JH |
960 | static char *normalize_reflog_message(const char *msg) |
961 | { | |
962 | struct strbuf sb = STRBUF_INIT; | |
963 | ||
964 | if (msg && *msg) | |
965 | copy_reflog_msg(&sb, msg); | |
966 | return strbuf_detach(&sb, NULL); | |
967 | } | |
968 | ||
4cb77009 | 969 | int should_autocreate_reflog(const char *refname) |
4e2bef57 | 970 | { |
341fb286 CW |
971 | switch (log_all_ref_updates) { |
972 | case LOG_REFS_ALWAYS: | |
973 | return 1; | |
974 | case LOG_REFS_NORMAL: | |
975 | return starts_with(refname, "refs/heads/") || | |
976 | starts_with(refname, "refs/remotes/") || | |
977 | starts_with(refname, "refs/notes/") || | |
978 | !strcmp(refname, "HEAD"); | |
979 | default: | |
4e2bef57 | 980 | return 0; |
341fb286 | 981 | } |
4e2bef57 DT |
982 | } |
983 | ||
e7e0f26e | 984 | int is_branch(const char *refname) |
c3b0dec5 | 985 | { |
59556548 | 986 | return !strcmp(refname, "HEAD") || starts_with(refname, "refs/heads/"); |
41b625b0 NP |
987 | } |
988 | ||
4207ed28 RS |
989 | struct read_ref_at_cb { |
990 | const char *refname; | |
dddbad72 | 991 | timestamp_t at_time; |
4207ed28 RS |
992 | int cnt; |
993 | int reccnt; | |
8eb36d94 | 994 | struct object_id *oid; |
4207ed28 RS |
995 | int found_it; |
996 | ||
8eb36d94 | 997 | struct object_id ooid; |
998 | struct object_id noid; | |
4207ed28 | 999 | int tz; |
dddbad72 | 1000 | timestamp_t date; |
4207ed28 | 1001 | char **msg; |
dddbad72 | 1002 | timestamp_t *cutoff_time; |
4207ed28 RS |
1003 | int *cutoff_tz; |
1004 | int *cutoff_cnt; | |
1005 | }; | |
1006 | ||
95c2a718 DL |
1007 | static void set_read_ref_cutoffs(struct read_ref_at_cb *cb, |
1008 | timestamp_t timestamp, int tz, const char *message) | |
1009 | { | |
1010 | if (cb->msg) | |
1011 | *cb->msg = xstrdup(message); | |
1012 | if (cb->cutoff_time) | |
1013 | *cb->cutoff_time = timestamp; | |
1014 | if (cb->cutoff_tz) | |
1015 | *cb->cutoff_tz = tz; | |
1016 | if (cb->cutoff_cnt) | |
1017 | *cb->cutoff_cnt = cb->reccnt; | |
1018 | } | |
1019 | ||
9461d272 | 1020 | static int read_ref_at_ent(struct object_id *ooid, struct object_id *noid, |
5cf88fd8 | 1021 | const char *email UNUSED, |
c006e9fa JK |
1022 | timestamp_t timestamp, int tz, |
1023 | const char *message, void *cb_data) | |
4207ed28 RS |
1024 | { |
1025 | struct read_ref_at_cb *cb = cb_data; | |
6436a202 | 1026 | int reached_count; |
4207ed28 | 1027 | |
4207ed28 RS |
1028 | cb->tz = tz; |
1029 | cb->date = timestamp; | |
1030 | ||
6436a202 DL |
1031 | /* |
1032 | * It is not possible for cb->cnt == 0 on the first iteration because | |
1033 | * that special case is handled in read_ref_at(). | |
1034 | */ | |
1035 | if (cb->cnt > 0) | |
1036 | cb->cnt--; | |
1037 | reached_count = cb->cnt == 0 && !is_null_oid(ooid); | |
1038 | if (timestamp <= cb->at_time || reached_count) { | |
95c2a718 | 1039 | set_read_ref_cutoffs(cb, timestamp, tz, message); |
4207ed28 | 1040 | /* |
78fb4579 | 1041 | * we have not yet updated cb->[n|o]oid so they still |
4207ed28 RS |
1042 | * hold the values for the previous record. |
1043 | */ | |
6436a202 DL |
1044 | if (!is_null_oid(&cb->ooid) && !oideq(&cb->ooid, noid)) |
1045 | warning(_("log for ref %s has gap after %s"), | |
a5481a6c | 1046 | cb->refname, show_date(cb->date, cb->tz, DATE_MODE(RFC2822))); |
6436a202 DL |
1047 | if (reached_count) |
1048 | oidcpy(cb->oid, ooid); | |
1049 | else if (!is_null_oid(&cb->ooid) || cb->date == cb->at_time) | |
8eb36d94 | 1050 | oidcpy(cb->oid, noid); |
9001dc2a | 1051 | else if (!oideq(noid, cb->oid)) |
661558f0 | 1052 | warning(_("log for ref %s unexpectedly ended on %s"), |
4207ed28 | 1053 | cb->refname, show_date(cb->date, cb->tz, |
a5481a6c | 1054 | DATE_MODE(RFC2822))); |
4207ed28 | 1055 | cb->found_it = 1; |
4207ed28 | 1056 | } |
95c2a718 | 1057 | cb->reccnt++; |
8eb36d94 | 1058 | oidcpy(&cb->ooid, ooid); |
1059 | oidcpy(&cb->noid, noid); | |
6436a202 DL |
1060 | return cb->found_it; |
1061 | } | |
1062 | ||
5cf88fd8 | 1063 | static int read_ref_at_ent_newest(struct object_id *ooid UNUSED, |
63e14ee2 | 1064 | struct object_id *noid, |
5cf88fd8 | 1065 | const char *email UNUSED, |
63e14ee2 JK |
1066 | timestamp_t timestamp, int tz, |
1067 | const char *message, void *cb_data) | |
6436a202 DL |
1068 | { |
1069 | struct read_ref_at_cb *cb = cb_data; | |
1070 | ||
1071 | set_read_ref_cutoffs(cb, timestamp, tz, message); | |
1072 | oidcpy(cb->oid, noid); | |
1073 | /* We just want the first entry */ | |
1074 | return 1; | |
4207ed28 RS |
1075 | } |
1076 | ||
9461d272 | 1077 | static int read_ref_at_ent_oldest(struct object_id *ooid, struct object_id *noid, |
5cf88fd8 | 1078 | const char *email UNUSED, |
c006e9fa JK |
1079 | timestamp_t timestamp, int tz, |
1080 | const char *message, void *cb_data) | |
4207ed28 RS |
1081 | { |
1082 | struct read_ref_at_cb *cb = cb_data; | |
1083 | ||
95c2a718 | 1084 | set_read_ref_cutoffs(cb, timestamp, tz, message); |
8eb36d94 | 1085 | oidcpy(cb->oid, ooid); |
1086 | if (is_null_oid(cb->oid)) | |
1087 | oidcpy(cb->oid, noid); | |
4207ed28 RS |
1088 | /* We just want the first entry */ |
1089 | return 1; | |
16d7cc90 JH |
1090 | } |
1091 | ||
7fdff474 NTND |
1092 | int read_ref_at(struct ref_store *refs, const char *refname, |
1093 | unsigned int flags, timestamp_t at_time, int cnt, | |
8eb36d94 | 1094 | struct object_id *oid, char **msg, |
dddbad72 | 1095 | timestamp_t *cutoff_time, int *cutoff_tz, int *cutoff_cnt) |
d556fae2 | 1096 | { |
4207ed28 | 1097 | struct read_ref_at_cb cb; |
d556fae2 | 1098 | |
4207ed28 RS |
1099 | memset(&cb, 0, sizeof(cb)); |
1100 | cb.refname = refname; | |
1101 | cb.at_time = at_time; | |
1102 | cb.cnt = cnt; | |
1103 | cb.msg = msg; | |
1104 | cb.cutoff_time = cutoff_time; | |
1105 | cb.cutoff_tz = cutoff_tz; | |
1106 | cb.cutoff_cnt = cutoff_cnt; | |
8eb36d94 | 1107 | cb.oid = oid; |
4207ed28 | 1108 | |
6436a202 DL |
1109 | if (cb.cnt == 0) { |
1110 | refs_for_each_reflog_ent_reverse(refs, refname, read_ref_at_ent_newest, &cb); | |
1111 | return 0; | |
1112 | } | |
1113 | ||
7fdff474 | 1114 | refs_for_each_reflog_ent_reverse(refs, refname, read_ref_at_ent, &cb); |
4207ed28 | 1115 | |
c41a87dd | 1116 | if (!cb.reccnt) { |
321c89bf | 1117 | if (flags & GET_OID_QUIETLY) |
c41a87dd DA |
1118 | exit(128); |
1119 | else | |
661558f0 | 1120 | die(_("log for %s is empty"), refname); |
c41a87dd | 1121 | } |
4207ed28 RS |
1122 | if (cb.found_it) |
1123 | return 0; | |
1124 | ||
7fdff474 | 1125 | refs_for_each_reflog_ent(refs, refname, read_ref_at_ent_oldest, &cb); |
d556fae2 | 1126 | |
16d7cc90 | 1127 | return 1; |
d556fae2 | 1128 | } |
2ff81662 | 1129 | |
c0fe4e8b NTND |
1130 | struct ref_transaction *ref_store_transaction_begin(struct ref_store *refs, |
1131 | struct strbuf *err) | |
caa4046c | 1132 | { |
c0fe4e8b | 1133 | struct ref_transaction *tr; |
5a603b04 JN |
1134 | assert(err); |
1135 | ||
ca56dadb | 1136 | CALLOC_ARRAY(tr, 1); |
c0fe4e8b NTND |
1137 | tr->ref_store = refs; |
1138 | return tr; | |
1139 | } | |
1140 | ||
1141 | struct ref_transaction *ref_transaction_begin(struct strbuf *err) | |
1142 | { | |
c6da34a6 | 1143 | return ref_store_transaction_begin(get_main_ref_store(the_repository), err); |
caa4046c MH |
1144 | } |
1145 | ||
026bd1d3 | 1146 | void ref_transaction_free(struct ref_transaction *transaction) |
caa4046c | 1147 | { |
43a2dfde | 1148 | size_t i; |
caa4046c | 1149 | |
1b07255c RS |
1150 | if (!transaction) |
1151 | return; | |
1152 | ||
30173b88 MH |
1153 | switch (transaction->state) { |
1154 | case REF_TRANSACTION_OPEN: | |
1155 | case REF_TRANSACTION_CLOSED: | |
1156 | /* OK */ | |
1157 | break; | |
1158 | case REF_TRANSACTION_PREPARED: | |
033abf97 | 1159 | BUG("free called on a prepared reference transaction"); |
30173b88 MH |
1160 | break; |
1161 | default: | |
033abf97 | 1162 | BUG("unexpected reference transaction state"); |
30173b88 MH |
1163 | break; |
1164 | } | |
1165 | ||
db7516ab RS |
1166 | for (i = 0; i < transaction->nr; i++) { |
1167 | free(transaction->updates[i]->msg); | |
88615910 | 1168 | free(transaction->updates[i]); |
db7516ab | 1169 | } |
caa4046c MH |
1170 | free(transaction->updates); |
1171 | free(transaction); | |
1172 | } | |
1173 | ||
71564516 MH |
1174 | struct ref_update *ref_transaction_add_update( |
1175 | struct ref_transaction *transaction, | |
1176 | const char *refname, unsigned int flags, | |
89f3bbdd | 1177 | const struct object_id *new_oid, |
1178 | const struct object_id *old_oid, | |
71564516 | 1179 | const char *msg) |
caa4046c | 1180 | { |
96ffc06f | 1181 | struct ref_update *update; |
71564516 MH |
1182 | |
1183 | if (transaction->state != REF_TRANSACTION_OPEN) | |
033abf97 | 1184 | BUG("update called for transaction that is not open"); |
71564516 | 1185 | |
96ffc06f | 1186 | FLEX_ALLOC_STR(update, refname, refname); |
caa4046c MH |
1187 | ALLOC_GROW(transaction->updates, transaction->nr + 1, transaction->alloc); |
1188 | transaction->updates[transaction->nr++] = update; | |
71564516 MH |
1189 | |
1190 | update->flags = flags; | |
1191 | ||
1192 | if (flags & REF_HAVE_NEW) | |
89f3bbdd | 1193 | oidcpy(&update->new_oid, new_oid); |
71564516 | 1194 | if (flags & REF_HAVE_OLD) |
89f3bbdd | 1195 | oidcpy(&update->old_oid, old_oid); |
523fa69c | 1196 | update->msg = normalize_reflog_message(msg); |
caa4046c MH |
1197 | return update; |
1198 | } | |
1199 | ||
8e34800e RS |
1200 | int ref_transaction_update(struct ref_transaction *transaction, |
1201 | const char *refname, | |
89f3bbdd | 1202 | const struct object_id *new_oid, |
1203 | const struct object_id *old_oid, | |
1d147bdf | 1204 | unsigned int flags, const char *msg, |
8e34800e | 1205 | struct strbuf *err) |
caa4046c | 1206 | { |
5a603b04 JN |
1207 | assert(err); |
1208 | ||
3c966c7b HWN |
1209 | if (!(flags & REF_SKIP_REFNAME_VERIFICATION) && |
1210 | ((new_oid && !is_null_oid(new_oid)) ? | |
1211 | check_refname_format(refname, REFNAME_ALLOW_ONELEVEL) : | |
1212 | !refname_is_safe(refname))) { | |
661558f0 | 1213 | strbuf_addf(err, _("refusing to update ref with bad name '%s'"), |
d0f810f0 RS |
1214 | refname); |
1215 | return -1; | |
1216 | } | |
1217 | ||
a9bbbcec MH |
1218 | if (flags & ~REF_TRANSACTION_UPDATE_ALLOWED_FLAGS) |
1219 | BUG("illegal flags 0x%x passed to ref_transaction_update()", flags); | |
c788c54c | 1220 | |
49f1eb3b JK |
1221 | /* |
1222 | * Clear flags outside the allowed set; this should be a noop because | |
1223 | * of the BUG() check above, but it works around a -Wnonnull warning | |
1224 | * with some versions of "gcc -O3". | |
1225 | */ | |
1226 | flags &= REF_TRANSACTION_UPDATE_ALLOWED_FLAGS; | |
1227 | ||
89f3bbdd | 1228 | flags |= (new_oid ? REF_HAVE_NEW : 0) | (old_oid ? REF_HAVE_OLD : 0); |
71564516 MH |
1229 | |
1230 | ref_transaction_add_update(transaction, refname, flags, | |
89f3bbdd | 1231 | new_oid, old_oid, msg); |
8e34800e | 1232 | return 0; |
caa4046c MH |
1233 | } |
1234 | ||
b416af5b RS |
1235 | int ref_transaction_create(struct ref_transaction *transaction, |
1236 | const char *refname, | |
89f3bbdd | 1237 | const struct object_id *new_oid, |
fec14ec3 | 1238 | unsigned int flags, const char *msg, |
b416af5b | 1239 | struct strbuf *err) |
caa4046c | 1240 | { |
d097a23b DS |
1241 | if (!new_oid || is_null_oid(new_oid)) { |
1242 | strbuf_addf(err, "'%s' has a null OID", refname); | |
1243 | return 1; | |
1244 | } | |
89f3bbdd | 1245 | return ref_transaction_update(transaction, refname, new_oid, |
14228447 | 1246 | null_oid(), flags, msg, err); |
caa4046c MH |
1247 | } |
1248 | ||
8c8bdc0d RS |
1249 | int ref_transaction_delete(struct ref_transaction *transaction, |
1250 | const char *refname, | |
89f3bbdd | 1251 | const struct object_id *old_oid, |
fb5a6bb6 | 1252 | unsigned int flags, const char *msg, |
8c8bdc0d | 1253 | struct strbuf *err) |
caa4046c | 1254 | { |
89f3bbdd | 1255 | if (old_oid && is_null_oid(old_oid)) |
033abf97 | 1256 | BUG("delete called with old_oid set to zeros"); |
1d147bdf | 1257 | return ref_transaction_update(transaction, refname, |
14228447 | 1258 | null_oid(), old_oid, |
1d147bdf | 1259 | flags, msg, err); |
caa4046c MH |
1260 | } |
1261 | ||
16180334 MH |
1262 | int ref_transaction_verify(struct ref_transaction *transaction, |
1263 | const char *refname, | |
89f3bbdd | 1264 | const struct object_id *old_oid, |
16180334 MH |
1265 | unsigned int flags, |
1266 | struct strbuf *err) | |
1267 | { | |
89f3bbdd | 1268 | if (!old_oid) |
033abf97 | 1269 | BUG("verify called with old_oid set to NULL"); |
16180334 | 1270 | return ref_transaction_update(transaction, refname, |
89f3bbdd | 1271 | NULL, old_oid, |
16180334 MH |
1272 | flags, NULL, err); |
1273 | } | |
1274 | ||
c0fe4e8b | 1275 | int refs_update_ref(struct ref_store *refs, const char *msg, |
ae077771 | 1276 | const char *refname, const struct object_id *new_oid, |
1277 | const struct object_id *old_oid, unsigned int flags, | |
c0fe4e8b | 1278 | enum action_on_err onerr) |
4738a333 | 1279 | { |
74ec19d4 | 1280 | struct ref_transaction *t = NULL; |
b4d75ac1 | 1281 | struct strbuf err = STRBUF_INIT; |
74ec19d4 | 1282 | int ret = 0; |
b4d75ac1 | 1283 | |
c6da34a6 | 1284 | t = ref_store_transaction_begin(refs, &err); |
09743417 HWN |
1285 | if (!t || |
1286 | ref_transaction_update(t, refname, new_oid, old_oid, flags, msg, | |
1287 | &err) || | |
1288 | ref_transaction_commit(t, &err)) { | |
1289 | ret = 1; | |
1290 | ref_transaction_free(t); | |
74ec19d4 DT |
1291 | } |
1292 | if (ret) { | |
661558f0 | 1293 | const char *str = _("update_ref failed for ref '%s': %s"); |
b4d75ac1 | 1294 | |
b4d75ac1 RS |
1295 | switch (onerr) { |
1296 | case UPDATE_REFS_MSG_ON_ERR: | |
1297 | error(str, refname, err.buf); | |
1298 | break; | |
1299 | case UPDATE_REFS_DIE_ON_ERR: | |
1300 | die(str, refname, err.buf); | |
1301 | break; | |
1302 | case UPDATE_REFS_QUIET_ON_ERR: | |
1303 | break; | |
1304 | } | |
1305 | strbuf_release(&err); | |
4738a333 | 1306 | return 1; |
b4d75ac1 RS |
1307 | } |
1308 | strbuf_release(&err); | |
74ec19d4 DT |
1309 | if (t) |
1310 | ref_transaction_free(t); | |
b4d75ac1 | 1311 | return 0; |
4738a333 BK |
1312 | } |
1313 | ||
c0fe4e8b | 1314 | int update_ref(const char *msg, const char *refname, |
ae077771 | 1315 | const struct object_id *new_oid, |
1316 | const struct object_id *old_oid, | |
c0fe4e8b NTND |
1317 | unsigned int flags, enum action_on_err onerr) |
1318 | { | |
23a3f0cb | 1319 | return refs_update_ref(get_main_ref_store(the_repository), msg, refname, new_oid, |
ae077771 | 1320 | old_oid, flags, onerr); |
c0fe4e8b NTND |
1321 | } |
1322 | ||
613bef56 JK |
1323 | /* |
1324 | * Check that the string refname matches a rule of the form | |
1325 | * "{prefix}%.*s{suffix}". So "foo/bar/baz" would match the rule | |
1326 | * "foo/%.*s/baz", and return the string "bar". | |
1327 | */ | |
1328 | static const char *match_parse_rule(const char *refname, const char *rule, | |
1329 | size_t *len) | |
7c2b3029 | 1330 | { |
613bef56 JK |
1331 | /* |
1332 | * Check that rule matches refname up to the first percent in the rule. | |
1333 | * We can bail immediately if not, but otherwise we leave "rule" at the | |
1334 | * %-placeholder, and "refname" at the start of the potential matched | |
1335 | * name. | |
1336 | */ | |
1337 | while (*rule != '%') { | |
1338 | if (!*rule) | |
1339 | BUG("rev-parse rule did not have percent"); | |
1340 | if (*refname++ != *rule++) | |
1341 | return NULL; | |
1342 | } | |
7c2b3029 | 1343 | |
613bef56 JK |
1344 | /* |
1345 | * Check that our "%" is the expected placeholder. This assumes there | |
1346 | * are no other percents (placeholder or quoted) in the string, but | |
1347 | * that is sufficient for our rev-parse rules. | |
1348 | */ | |
1349 | if (!skip_prefix(rule, "%.*s", &rule)) | |
1350 | return NULL; | |
7c2b3029 | 1351 | |
613bef56 JK |
1352 | /* |
1353 | * And now check that our suffix (if any) matches. | |
1354 | */ | |
1355 | if (!strip_suffix(refname, rule, len)) | |
1356 | return NULL; | |
7c2b3029 | 1357 | |
613bef56 JK |
1358 | return refname; /* len set by strip_suffix() */ |
1359 | } | |
7c2b3029 | 1360 | |
546edf37 NTND |
1361 | char *refs_shorten_unambiguous_ref(struct ref_store *refs, |
1362 | const char *refname, int strict) | |
7c2b3029 JK |
1363 | { |
1364 | int i; | |
6cd4a898 | 1365 | struct strbuf resolved_buf = STRBUF_INIT; |
7c2b3029 | 1366 | |
7c2b3029 | 1367 | /* skip first rule, it will always match */ |
8f416f65 | 1368 | for (i = NUM_REV_PARSE_RULES - 1; i > 0 ; --i) { |
7c2b3029 | 1369 | int j; |
6e7b3309 | 1370 | int rules_to_fail = i; |
613bef56 | 1371 | const char *short_name; |
dd5e4d39 | 1372 | size_t short_name_len; |
7c2b3029 | 1373 | |
613bef56 JK |
1374 | short_name = match_parse_rule(refname, ref_rev_parse_rules[i], |
1375 | &short_name_len); | |
1376 | if (!short_name) | |
7c2b3029 JK |
1377 | continue; |
1378 | ||
6e7b3309 BW |
1379 | /* |
1380 | * in strict mode, all (except the matched one) rules | |
1381 | * must fail to resolve to a valid non-ambiguous ref | |
1382 | */ | |
1383 | if (strict) | |
8f416f65 | 1384 | rules_to_fail = NUM_REV_PARSE_RULES; |
6e7b3309 | 1385 | |
7c2b3029 JK |
1386 | /* |
1387 | * check if the short name resolves to a valid ref, | |
1388 | * but use only rules prior to the matched one | |
1389 | */ | |
6e7b3309 | 1390 | for (j = 0; j < rules_to_fail; j++) { |
7c2b3029 | 1391 | const char *rule = ref_rev_parse_rules[j]; |
7c2b3029 | 1392 | |
6e7b3309 BW |
1393 | /* skip matched rule */ |
1394 | if (i == j) | |
1395 | continue; | |
1396 | ||
7c2b3029 JK |
1397 | /* |
1398 | * the short name is ambiguous, if it resolves | |
1399 | * (with this previous rule) to a valid ref | |
1400 | * read_ref() returns 0 on success | |
1401 | */ | |
6cd4a898 JK |
1402 | strbuf_reset(&resolved_buf); |
1403 | strbuf_addf(&resolved_buf, rule, | |
dd5e4d39 JK |
1404 | cast_size_t_to_int(short_name_len), |
1405 | short_name); | |
546edf37 | 1406 | if (refs_ref_exists(refs, resolved_buf.buf)) |
7c2b3029 JK |
1407 | break; |
1408 | } | |
1409 | ||
1410 | /* | |
1411 | * short name is non-ambiguous if all previous rules | |
1412 | * haven't resolved to a valid ref | |
1413 | */ | |
6cd4a898 JK |
1414 | if (j == rules_to_fail) { |
1415 | strbuf_release(&resolved_buf); | |
613bef56 | 1416 | return xmemdupz(short_name, short_name_len); |
6cd4a898 | 1417 | } |
7c2b3029 JK |
1418 | } |
1419 | ||
6cd4a898 | 1420 | strbuf_release(&resolved_buf); |
dfefa935 | 1421 | return xstrdup(refname); |
7c2b3029 | 1422 | } |
daebaa78 | 1423 | |
546edf37 NTND |
1424 | char *shorten_unambiguous_ref(const char *refname, int strict) |
1425 | { | |
1426 | return refs_shorten_unambiguous_ref(get_main_ref_store(the_repository), | |
1427 | refname, strict); | |
1428 | } | |
1429 | ||
9b67eb6f PS |
1430 | int parse_hide_refs_config(const char *var, const char *value, const char *section, |
1431 | struct string_list *hide_refs) | |
daebaa78 | 1432 | { |
ad8c7cda | 1433 | const char *key; |
daebaa78 | 1434 | if (!strcmp("transfer.hiderefs", var) || |
ad8c7cda JK |
1435 | (!parse_config_key(var, section, NULL, NULL, &key) && |
1436 | !strcmp(key, "hiderefs"))) { | |
daebaa78 JH |
1437 | char *ref; |
1438 | int len; | |
1439 | ||
1440 | if (!value) | |
1441 | return config_error_nonbool(var); | |
1442 | ref = xstrdup(value); | |
1443 | len = strlen(ref); | |
1444 | while (len && ref[len - 1] == '/') | |
1445 | ref[--len] = '\0'; | |
5eeb9aa2 | 1446 | string_list_append_nodup(hide_refs, ref); |
daebaa78 JH |
1447 | } |
1448 | return 0; | |
1449 | } | |
1450 | ||
9b67eb6f PS |
1451 | int ref_is_hidden(const char *refname, const char *refname_full, |
1452 | const struct string_list *hide_refs) | |
daebaa78 | 1453 | { |
2bc31d16 | 1454 | int i; |
daebaa78 | 1455 | |
2bc31d16 JK |
1456 | for (i = hide_refs->nr - 1; i >= 0; i--) { |
1457 | const char *match = hide_refs->items[i].string; | |
78a766ab | 1458 | const char *subject; |
2bc31d16 | 1459 | int neg = 0; |
7a40a95e | 1460 | const char *p; |
2bc31d16 JK |
1461 | |
1462 | if (*match == '!') { | |
1463 | neg = 1; | |
1464 | match++; | |
1465 | } | |
1466 | ||
78a766ab LF |
1467 | if (*match == '^') { |
1468 | subject = refname_full; | |
1469 | match++; | |
1470 | } else { | |
1471 | subject = refname; | |
1472 | } | |
1473 | ||
1474 | /* refname can be NULL when namespaces are used. */ | |
7a40a95e CC |
1475 | if (subject && |
1476 | skip_prefix(subject, match, &p) && | |
1477 | (!*p || *p == '/')) | |
2bc31d16 | 1478 | return !neg; |
daebaa78 JH |
1479 | } |
1480 | return 0; | |
1481 | } | |
fa5b1830 | 1482 | |
0845122c DT |
1483 | const char *find_descendant_ref(const char *dirname, |
1484 | const struct string_list *extras, | |
1485 | const struct string_list *skip) | |
fa5b1830 | 1486 | { |
0845122c | 1487 | int pos; |
fa5b1830 | 1488 | |
0845122c DT |
1489 | if (!extras) |
1490 | return NULL; | |
fa5b1830 MH |
1491 | |
1492 | /* | |
0845122c DT |
1493 | * Look at the place where dirname would be inserted into |
1494 | * extras. If there is an entry at that position that starts | |
1495 | * with dirname (remember, dirname includes the trailing | |
1496 | * slash) and is not in skip, then we have a conflict. | |
fa5b1830 | 1497 | */ |
0845122c DT |
1498 | for (pos = string_list_find_insert_index(extras, dirname, 0); |
1499 | pos < extras->nr; pos++) { | |
1500 | const char *extra_refname = extras->items[pos].string; | |
fa5b1830 | 1501 | |
0845122c DT |
1502 | if (!starts_with(extra_refname, dirname)) |
1503 | break; | |
1504 | ||
1505 | if (!skip || !string_list_has_string(skip, extra_refname)) | |
1506 | return extra_refname; | |
fa5b1830 | 1507 | } |
0845122c DT |
1508 | return NULL; |
1509 | } | |
fa5b1830 | 1510 | |
62f0b399 | 1511 | int refs_head_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
2bf68ed5 DT |
1512 | { |
1513 | struct object_id oid; | |
1514 | int flag; | |
1515 | ||
f1da24ca | 1516 | if (refs_resolve_ref_unsafe(refs, "HEAD", RESOLVE_REF_READING, |
ce14de03 | 1517 | &oid, &flag)) |
2bf68ed5 DT |
1518 | return fn("HEAD", &oid, flag, cb_data); |
1519 | ||
1520 | return 0; | |
1521 | } | |
1522 | ||
1523 | int head_ref(each_ref_fn fn, void *cb_data) | |
1524 | { | |
23a3f0cb | 1525 | return refs_head_ref(get_main_ref_store(the_repository), fn, cb_data); |
2bf68ed5 | 1526 | } |
93770590 | 1527 | |
e121b9cb MH |
1528 | struct ref_iterator *refs_ref_iterator_begin( |
1529 | struct ref_store *refs, | |
9aab952e JK |
1530 | const char *prefix, int trim, |
1531 | enum do_for_each_ref_flags flags) | |
e121b9cb MH |
1532 | { |
1533 | struct ref_iterator *iter; | |
1534 | ||
6d751be4 | 1535 | if (!(flags & DO_FOR_EACH_INCLUDE_BROKEN)) { |
5d1f5b8c JK |
1536 | static int ref_paranoia = -1; |
1537 | ||
6d751be4 | 1538 | if (ref_paranoia < 0) |
968f12fd | 1539 | ref_paranoia = git_env_bool("GIT_REF_PARANOIA", 1); |
6d751be4 JK |
1540 | if (ref_paranoia) { |
1541 | flags |= DO_FOR_EACH_INCLUDE_BROKEN; | |
1542 | flags |= DO_FOR_EACH_OMIT_DANGLING_SYMREFS; | |
1543 | } | |
1544 | } | |
0a0865b8 | 1545 | |
e121b9cb | 1546 | iter = refs->be->iterator_begin(refs, prefix, flags); |
c7599718 MH |
1547 | |
1548 | /* | |
1549 | * `iterator_begin()` already takes care of prefix, but we | |
1550 | * might need to do some trimming: | |
1551 | */ | |
1552 | if (trim) | |
1553 | iter = prefix_ref_iterator_begin(iter, "", trim); | |
e121b9cb | 1554 | |
8738a8a4 MH |
1555 | /* Sanity check for subclasses: */ |
1556 | if (!iter->ordered) | |
1557 | BUG("reference iterator is not ordered"); | |
1558 | ||
e121b9cb MH |
1559 | return iter; |
1560 | } | |
1561 | ||
4c4de895 MH |
1562 | /* |
1563 | * Call fn for each reference in the specified submodule for which the | |
1564 | * refname begins with prefix. If trim is non-zero, then trim that | |
1565 | * many characters off the beginning of each refname before passing | |
1566 | * the refname to fn. flags can be DO_FOR_EACH_INCLUDE_BROKEN to | |
1567 | * include broken references in the iteration. If fn ever returns a | |
1568 | * non-zero value, stop the iteration and return that value; | |
1569 | * otherwise, return 0. | |
1570 | */ | |
4a6067cd SB |
1571 | static int do_for_each_repo_ref(struct repository *r, const char *prefix, |
1572 | each_repo_ref_fn fn, int trim, int flags, | |
1573 | void *cb_data) | |
1574 | { | |
1575 | struct ref_iterator *iter; | |
1576 | struct ref_store *refs = get_main_ref_store(r); | |
1577 | ||
1578 | if (!refs) | |
1579 | return 0; | |
1580 | ||
1581 | iter = refs_ref_iterator_begin(refs, prefix, trim, flags); | |
1582 | ||
1583 | return do_for_each_repo_ref_iterator(r, iter, fn, cb_data); | |
1584 | } | |
1585 | ||
1586 | struct do_for_each_ref_help { | |
1587 | each_ref_fn *fn; | |
1588 | void *cb_data; | |
1589 | }; | |
1590 | ||
1591 | static int do_for_each_ref_helper(struct repository *r, | |
1592 | const char *refname, | |
1593 | const struct object_id *oid, | |
1594 | int flags, | |
1595 | void *cb_data) | |
1596 | { | |
1597 | struct do_for_each_ref_help *hp = cb_data; | |
1598 | ||
1599 | return hp->fn(refname, oid, flags, hp->cb_data); | |
1600 | } | |
1601 | ||
7d2df051 | 1602 | static int do_for_each_ref(struct ref_store *refs, const char *prefix, |
9aab952e JK |
1603 | each_ref_fn fn, int trim, |
1604 | enum do_for_each_ref_flags flags, void *cb_data) | |
4c4de895 MH |
1605 | { |
1606 | struct ref_iterator *iter; | |
4a6067cd | 1607 | struct do_for_each_ref_help hp = { fn, cb_data }; |
4c4de895 | 1608 | |
00eebe35 MH |
1609 | if (!refs) |
1610 | return 0; | |
1611 | ||
e121b9cb | 1612 | iter = refs_ref_iterator_begin(refs, prefix, trim, flags); |
4c4de895 | 1613 | |
4a6067cd SB |
1614 | return do_for_each_repo_ref_iterator(the_repository, iter, |
1615 | do_for_each_ref_helper, &hp); | |
4c4de895 MH |
1616 | } |
1617 | ||
7d2df051 NTND |
1618 | int refs_for_each_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
1619 | { | |
1620 | return do_for_each_ref(refs, "", fn, 0, 0, cb_data); | |
1621 | } | |
1622 | ||
93770590 DT |
1623 | int for_each_ref(each_ref_fn fn, void *cb_data) |
1624 | { | |
23a3f0cb | 1625 | return refs_for_each_ref(get_main_ref_store(the_repository), fn, cb_data); |
93770590 DT |
1626 | } |
1627 | ||
7d2df051 NTND |
1628 | int refs_for_each_ref_in(struct ref_store *refs, const char *prefix, |
1629 | each_ref_fn fn, void *cb_data) | |
1630 | { | |
1631 | return do_for_each_ref(refs, prefix, fn, strlen(prefix), 0, cb_data); | |
93770590 DT |
1632 | } |
1633 | ||
1634 | int for_each_ref_in(const char *prefix, each_ref_fn fn, void *cb_data) | |
1635 | { | |
23a3f0cb | 1636 | return refs_for_each_ref_in(get_main_ref_store(the_repository), prefix, fn, cb_data); |
93770590 DT |
1637 | } |
1638 | ||
67985e4e | 1639 | int for_each_fullref_in(const char *prefix, each_ref_fn fn, void *cb_data) |
93770590 | 1640 | { |
23a3f0cb | 1641 | return do_for_each_ref(get_main_ref_store(the_repository), |
67985e4e | 1642 | prefix, fn, 0, 0, cb_data); |
93770590 DT |
1643 | } |
1644 | ||
073cf63c | 1645 | int refs_for_each_fullref_in(struct ref_store *refs, const char *prefix, |
67985e4e | 1646 | each_ref_fn fn, void *cb_data) |
03df567f | 1647 | { |
67985e4e | 1648 | return do_for_each_ref(refs, prefix, fn, 0, 0, cb_data); |
03df567f MH |
1649 | } |
1650 | ||
212e0f7e | 1651 | int for_each_replace_ref(struct repository *r, each_repo_ref_fn fn, void *cb_data) |
93770590 | 1652 | { |
97e61e0f | 1653 | const char *git_replace_ref_base = ref_namespace[NAMESPACE_REPLACE].ref; |
212e0f7e SB |
1654 | return do_for_each_repo_ref(r, git_replace_ref_base, fn, |
1655 | strlen(git_replace_ref_base), | |
1656 | DO_FOR_EACH_INCLUDE_BROKEN, cb_data); | |
93770590 DT |
1657 | } |
1658 | ||
1659 | int for_each_namespaced_ref(each_ref_fn fn, void *cb_data) | |
1660 | { | |
1661 | struct strbuf buf = STRBUF_INIT; | |
1662 | int ret; | |
1663 | strbuf_addf(&buf, "%srefs/", get_git_namespace()); | |
23a3f0cb | 1664 | ret = do_for_each_ref(get_main_ref_store(the_repository), |
7d2df051 | 1665 | buf.buf, fn, 0, 0, cb_data); |
93770590 DT |
1666 | strbuf_release(&buf); |
1667 | return ret; | |
1668 | } | |
1669 | ||
7d2df051 | 1670 | int refs_for_each_rawref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
93770590 | 1671 | { |
7d2df051 | 1672 | return do_for_each_ref(refs, "", fn, 0, |
93770590 DT |
1673 | DO_FOR_EACH_INCLUDE_BROKEN, cb_data); |
1674 | } | |
2d0663b2 | 1675 | |
7d2df051 NTND |
1676 | int for_each_rawref(each_ref_fn fn, void *cb_data) |
1677 | { | |
23a3f0cb | 1678 | return refs_for_each_rawref(get_main_ref_store(the_repository), fn, cb_data); |
7d2df051 NTND |
1679 | } |
1680 | ||
16b1985b TB |
1681 | static int qsort_strcmp(const void *va, const void *vb) |
1682 | { | |
1683 | const char *a = *(const char **)va; | |
1684 | const char *b = *(const char **)vb; | |
1685 | ||
1686 | return strcmp(a, b); | |
1687 | } | |
1688 | ||
1689 | static void find_longest_prefixes_1(struct string_list *out, | |
1690 | struct strbuf *prefix, | |
1691 | const char **patterns, size_t nr) | |
1692 | { | |
1693 | size_t i; | |
1694 | ||
1695 | for (i = 0; i < nr; i++) { | |
1696 | char c = patterns[i][prefix->len]; | |
1697 | if (!c || is_glob_special(c)) { | |
1698 | string_list_append(out, prefix->buf); | |
1699 | return; | |
1700 | } | |
1701 | } | |
1702 | ||
1703 | i = 0; | |
1704 | while (i < nr) { | |
1705 | size_t end; | |
1706 | ||
1707 | /* | |
1708 | * Set "end" to the index of the element _after_ the last one | |
1709 | * in our group. | |
1710 | */ | |
1711 | for (end = i + 1; end < nr; end++) { | |
1712 | if (patterns[i][prefix->len] != patterns[end][prefix->len]) | |
1713 | break; | |
1714 | } | |
1715 | ||
1716 | strbuf_addch(prefix, patterns[i][prefix->len]); | |
1717 | find_longest_prefixes_1(out, prefix, patterns + i, end - i); | |
1718 | strbuf_setlen(prefix, prefix->len - 1); | |
1719 | ||
1720 | i = end; | |
1721 | } | |
1722 | } | |
1723 | ||
1724 | static void find_longest_prefixes(struct string_list *out, | |
1725 | const char **patterns) | |
1726 | { | |
1727 | struct strvec sorted = STRVEC_INIT; | |
1728 | struct strbuf prefix = STRBUF_INIT; | |
1729 | ||
1730 | strvec_pushv(&sorted, patterns); | |
1731 | QSORT(sorted.v, sorted.nr, qsort_strcmp); | |
1732 | ||
1733 | find_longest_prefixes_1(out, &prefix, sorted.v, sorted.nr); | |
1734 | ||
1735 | strvec_clear(&sorted); | |
1736 | strbuf_release(&prefix); | |
1737 | } | |
1738 | ||
91e2ab15 JK |
1739 | int refs_for_each_fullref_in_prefixes(struct ref_store *ref_store, |
1740 | const char *namespace, | |
1741 | const char **patterns, | |
1742 | each_ref_fn fn, void *cb_data) | |
16b1985b TB |
1743 | { |
1744 | struct string_list prefixes = STRING_LIST_INIT_DUP; | |
1745 | struct string_list_item *prefix; | |
1746 | struct strbuf buf = STRBUF_INIT; | |
1747 | int ret = 0, namespace_len; | |
1748 | ||
1749 | find_longest_prefixes(&prefixes, patterns); | |
1750 | ||
1751 | if (namespace) | |
1752 | strbuf_addstr(&buf, namespace); | |
1753 | namespace_len = buf.len; | |
1754 | ||
1755 | for_each_string_list_item(prefix, &prefixes) { | |
1756 | strbuf_addstr(&buf, prefix->string); | |
91e2ab15 | 1757 | ret = refs_for_each_fullref_in(ref_store, buf.buf, fn, cb_data); |
16b1985b TB |
1758 | if (ret) |
1759 | break; | |
1760 | strbuf_setlen(&buf, namespace_len); | |
1761 | } | |
1762 | ||
1763 | string_list_clear(&prefixes, 0); | |
1764 | strbuf_release(&buf); | |
1765 | return ret; | |
1766 | } | |
1767 | ||
e8115302 HWN |
1768 | static int refs_read_special_head(struct ref_store *ref_store, |
1769 | const char *refname, struct object_id *oid, | |
df3458e9 HWN |
1770 | struct strbuf *referent, unsigned int *type, |
1771 | int *failure_errno) | |
e8115302 HWN |
1772 | { |
1773 | struct strbuf full_path = STRBUF_INIT; | |
1774 | struct strbuf content = STRBUF_INIT; | |
1775 | int result = -1; | |
1776 | strbuf_addf(&full_path, "%s/%s", ref_store->gitdir, refname); | |
1777 | ||
1778 | if (strbuf_read_file(&content, full_path.buf, 0) < 0) | |
1779 | goto done; | |
1780 | ||
df3458e9 HWN |
1781 | result = parse_loose_ref_contents(content.buf, oid, referent, type, |
1782 | failure_errno); | |
e8115302 HWN |
1783 | |
1784 | done: | |
1785 | strbuf_release(&full_path); | |
1786 | strbuf_release(&content); | |
1787 | return result; | |
1788 | } | |
1789 | ||
8b72fea7 HWN |
1790 | int refs_read_raw_ref(struct ref_store *ref_store, const char *refname, |
1791 | struct object_id *oid, struct strbuf *referent, | |
1792 | unsigned int *type, int *failure_errno) | |
470be518 | 1793 | { |
8b72fea7 | 1794 | assert(failure_errno); |
e8115302 HWN |
1795 | if (!strcmp(refname, "FETCH_HEAD") || !strcmp(refname, "MERGE_HEAD")) { |
1796 | return refs_read_special_head(ref_store, refname, oid, referent, | |
df3458e9 | 1797 | type, failure_errno); |
e8115302 HWN |
1798 | } |
1799 | ||
1800 | return ref_store->be->read_raw_ref(ref_store, refname, oid, referent, | |
8b72fea7 | 1801 | type, failure_errno); |
470be518 MH |
1802 | } |
1803 | ||
cd475b3b PS |
1804 | int refs_read_symbolic_ref(struct ref_store *ref_store, const char *refname, |
1805 | struct strbuf *referent) | |
1806 | { | |
5b875404 | 1807 | return ref_store->be->read_symbolic_ref(ref_store, refname, referent); |
cd475b3b PS |
1808 | } |
1809 | ||
7d2df051 | 1810 | const char *refs_resolve_ref_unsafe(struct ref_store *refs, |
3c0cb0cb MH |
1811 | const char *refname, |
1812 | int resolve_flags, | |
ef18119d | 1813 | struct object_id *oid, |
ce14de03 | 1814 | int *flags) |
2d0663b2 DT |
1815 | { |
1816 | static struct strbuf sb_refname = STRBUF_INIT; | |
54fad661 | 1817 | struct object_id unused_oid; |
2d0663b2 DT |
1818 | int unused_flags; |
1819 | int symref_count; | |
1820 | ||
49e61479 | 1821 | if (!oid) |
1822 | oid = &unused_oid; | |
2d0663b2 DT |
1823 | if (!flags) |
1824 | flags = &unused_flags; | |
1825 | ||
1826 | *flags = 0; | |
1827 | ||
1828 | if (check_refname_format(refname, REFNAME_ALLOW_ONELEVEL)) { | |
1829 | if (!(resolve_flags & RESOLVE_REF_ALLOW_BAD_NAME) || | |
ce14de03 | 1830 | !refname_is_safe(refname)) |
2d0663b2 | 1831 | return NULL; |
2d0663b2 DT |
1832 | |
1833 | /* | |
c7c33f50 | 1834 | * repo_dwim_ref() uses REF_ISBROKEN to distinguish between |
2d0663b2 DT |
1835 | * missing refs and refs that were present but invalid, |
1836 | * to complain about the latter to stderr. | |
1837 | * | |
1838 | * We don't know whether the ref exists, so don't set | |
1839 | * REF_ISBROKEN yet. | |
1840 | */ | |
1841 | *flags |= REF_BAD_NAME; | |
1842 | } | |
1843 | ||
1844 | for (symref_count = 0; symref_count < SYMREF_MAXDEPTH; symref_count++) { | |
1845 | unsigned int read_flags = 0; | |
ce14de03 | 1846 | int failure_errno; |
2d0663b2 | 1847 | |
8b72fea7 | 1848 | if (refs_read_raw_ref(refs, refname, oid, &sb_refname, |
ce14de03 | 1849 | &read_flags, &failure_errno)) { |
2d0663b2 | 1850 | *flags |= read_flags; |
a1c1d817 JK |
1851 | |
1852 | /* In reading mode, refs must eventually resolve */ | |
1853 | if (resolve_flags & RESOLVE_REF_READING) | |
1854 | return NULL; | |
1855 | ||
1856 | /* | |
1857 | * Otherwise a missing ref is OK. But the files backend | |
1858 | * may show errors besides ENOENT if there are | |
1859 | * similarly-named refs. | |
1860 | */ | |
ce14de03 ÆAB |
1861 | if (failure_errno != ENOENT && |
1862 | failure_errno != EISDIR && | |
1863 | failure_errno != ENOTDIR) | |
2d0663b2 | 1864 | return NULL; |
a1c1d817 | 1865 | |
49e61479 | 1866 | oidclr(oid); |
2d0663b2 DT |
1867 | if (*flags & REF_BAD_NAME) |
1868 | *flags |= REF_ISBROKEN; | |
1869 | return refname; | |
1870 | } | |
1871 | ||
1872 | *flags |= read_flags; | |
1873 | ||
1874 | if (!(read_flags & REF_ISSYMREF)) { | |
1875 | if (*flags & REF_BAD_NAME) { | |
49e61479 | 1876 | oidclr(oid); |
2d0663b2 DT |
1877 | *flags |= REF_ISBROKEN; |
1878 | } | |
1879 | return refname; | |
1880 | } | |
1881 | ||
1882 | refname = sb_refname.buf; | |
1883 | if (resolve_flags & RESOLVE_REF_NO_RECURSE) { | |
49e61479 | 1884 | oidclr(oid); |
2d0663b2 DT |
1885 | return refname; |
1886 | } | |
1887 | if (check_refname_format(refname, REFNAME_ALLOW_ONELEVEL)) { | |
1888 | if (!(resolve_flags & RESOLVE_REF_ALLOW_BAD_NAME) || | |
ce14de03 | 1889 | !refname_is_safe(refname)) |
2d0663b2 | 1890 | return NULL; |
2d0663b2 DT |
1891 | |
1892 | *flags |= REF_ISBROKEN | REF_BAD_NAME; | |
1893 | } | |
1894 | } | |
1895 | ||
2d0663b2 DT |
1896 | return NULL; |
1897 | } | |
00eebe35 | 1898 | |
6fb5acfd DT |
1899 | /* backend functions */ |
1900 | int refs_init_db(struct strbuf *err) | |
1901 | { | |
23a3f0cb | 1902 | struct ref_store *refs = get_main_ref_store(the_repository); |
6fb5acfd DT |
1903 | |
1904 | return refs->be->init_db(refs, err); | |
1905 | } | |
1906 | ||
bd40dcda | 1907 | const char *resolve_ref_unsafe(const char *refname, int resolve_flags, |
49e61479 | 1908 | struct object_id *oid, int *flags) |
bd40dcda | 1909 | { |
23a3f0cb | 1910 | return refs_resolve_ref_unsafe(get_main_ref_store(the_repository), refname, |
ce14de03 | 1911 | resolve_flags, oid, flags); |
bd40dcda MH |
1912 | } |
1913 | ||
a8355bb7 | 1914 | int resolve_gitlink_ref(const char *submodule, const char *refname, |
a98e6101 | 1915 | struct object_id *oid) |
424dcc76 | 1916 | { |
424dcc76 MH |
1917 | struct ref_store *refs; |
1918 | int flags; | |
1919 | ||
29babbee | 1920 | refs = get_submodule_ref_store(submodule); |
48a8475f | 1921 | |
424dcc76 MH |
1922 | if (!refs) |
1923 | return -1; | |
1924 | ||
ce14de03 ÆAB |
1925 | if (!refs_resolve_ref_unsafe(refs, refname, 0, oid, &flags) || |
1926 | is_null_oid(oid)) | |
424dcc76 MH |
1927 | return -1; |
1928 | return 0; | |
1929 | } | |
1930 | ||
0c064d90 | 1931 | struct ref_store_hash_entry |
7d4558c4 | 1932 | { |
e2b5038d | 1933 | struct hashmap_entry ent; |
7d4558c4 MH |
1934 | |
1935 | struct ref_store *refs; | |
1936 | ||
0c064d90 NTND |
1937 | /* NUL-terminated identifier of the ref store: */ |
1938 | char name[FLEX_ARRAY]; | |
7d4558c4 MH |
1939 | }; |
1940 | ||
5cf88fd8 | 1941 | static int ref_store_hash_cmp(const void *cmp_data UNUSED, |
939af16e EW |
1942 | const struct hashmap_entry *eptr, |
1943 | const struct hashmap_entry *entry_or_key, | |
7d4558c4 MH |
1944 | const void *keydata) |
1945 | { | |
939af16e EW |
1946 | const struct ref_store_hash_entry *e1, *e2; |
1947 | const char *name; | |
1948 | ||
1949 | e1 = container_of(eptr, const struct ref_store_hash_entry, ent); | |
1950 | e2 = container_of(entry_or_key, const struct ref_store_hash_entry, ent); | |
1951 | name = keydata ? keydata : e2->name; | |
7d4558c4 | 1952 | |
0c064d90 | 1953 | return strcmp(e1->name, name); |
7d4558c4 MH |
1954 | } |
1955 | ||
0c064d90 NTND |
1956 | static struct ref_store_hash_entry *alloc_ref_store_hash_entry( |
1957 | const char *name, struct ref_store *refs) | |
7d4558c4 | 1958 | { |
0c064d90 | 1959 | struct ref_store_hash_entry *entry; |
7d4558c4 | 1960 | |
0c064d90 | 1961 | FLEX_ALLOC_STR(entry, name, name); |
d22245a2 | 1962 | hashmap_entry_init(&entry->ent, strhash(name)); |
7d4558c4 MH |
1963 | entry->refs = refs; |
1964 | return entry; | |
1965 | } | |
1966 | ||
7d4558c4 MH |
1967 | /* A hashmap of ref_stores, stored by submodule name: */ |
1968 | static struct hashmap submodule_ref_stores; | |
00eebe35 | 1969 | |
17eff96b NTND |
1970 | /* A hashmap of ref_stores, stored by worktree id: */ |
1971 | static struct hashmap worktree_ref_stores; | |
1972 | ||
c468da4e | 1973 | /* |
0c064d90 NTND |
1974 | * Look up a ref store by name. If that ref_store hasn't been |
1975 | * registered yet, return NULL. | |
c468da4e | 1976 | */ |
0c064d90 NTND |
1977 | static struct ref_store *lookup_ref_store_map(struct hashmap *map, |
1978 | const char *name) | |
00eebe35 | 1979 | { |
0c064d90 | 1980 | struct ref_store_hash_entry *entry; |
f23a4651 | 1981 | unsigned int hash; |
00eebe35 | 1982 | |
0c064d90 | 1983 | if (!map->tablesize) |
7d4558c4 MH |
1984 | /* It's initialized on demand in register_ref_store(). */ |
1985 | return NULL; | |
620a66b9 | 1986 | |
f23a4651 EW |
1987 | hash = strhash(name); |
1988 | entry = hashmap_get_entry_from_hash(map, hash, name, | |
1989 | struct ref_store_hash_entry, ent); | |
7d4558c4 | 1990 | return entry ? entry->refs : NULL; |
00eebe35 MH |
1991 | } |
1992 | ||
c468da4e MH |
1993 | /* |
1994 | * Create, record, and return a ref_store instance for the specified | |
5d0bc90e | 1995 | * gitdir. |
c468da4e | 1996 | */ |
34224e14 JT |
1997 | static struct ref_store *ref_store_init(struct repository *repo, |
1998 | const char *gitdir, | |
9e7ec634 | 1999 | unsigned int flags) |
00eebe35 MH |
2000 | { |
2001 | const char *be_name = "files"; | |
2002 | struct ref_storage_be *be = find_ref_storage_backend(be_name); | |
ba88add5 | 2003 | struct ref_store *refs; |
00eebe35 MH |
2004 | |
2005 | if (!be) | |
033abf97 | 2006 | BUG("reference backend %s is unknown", be_name); |
00eebe35 | 2007 | |
34224e14 | 2008 | refs = be->init(repo, gitdir, flags); |
ba88add5 | 2009 | return refs; |
00eebe35 MH |
2010 | } |
2011 | ||
64a74161 | 2012 | struct ref_store *get_main_ref_store(struct repository *r) |
24c8407e | 2013 | { |
02204610 JK |
2014 | if (r->refs_private) |
2015 | return r->refs_private; | |
24c8407e | 2016 | |
2dc417ab JK |
2017 | if (!r->gitdir) |
2018 | BUG("attempting to get main_ref_store outside of repository"); | |
2019 | ||
34224e14 | 2020 | r->refs_private = ref_store_init(r, r->gitdir, REF_STORE_ALL_CAPS); |
4441f427 | 2021 | r->refs_private = maybe_debug_wrap_ref_store(r->gitdir, r->refs_private); |
02204610 | 2022 | return r->refs_private; |
378dc910 NTND |
2023 | } |
2024 | ||
2025 | /* | |
0c064d90 NTND |
2026 | * Associate a ref store with a name. It is a fatal error to call this |
2027 | * function twice for the same name. | |
378dc910 | 2028 | */ |
0c064d90 NTND |
2029 | static void register_ref_store_map(struct hashmap *map, |
2030 | const char *type, | |
2031 | struct ref_store *refs, | |
2032 | const char *name) | |
378dc910 | 2033 | { |
26b455f2 EW |
2034 | struct ref_store_hash_entry *entry; |
2035 | ||
0c064d90 | 2036 | if (!map->tablesize) |
7663cdc8 | 2037 | hashmap_init(map, ref_store_hash_cmp, NULL, 0); |
378dc910 | 2038 | |
26b455f2 EW |
2039 | entry = alloc_ref_store_hash_entry(name, refs); |
2040 | if (hashmap_put(map, &entry->ent)) | |
033abf97 | 2041 | BUG("%s ref_store '%s' initialized twice", type, name); |
24c8407e NTND |
2042 | } |
2043 | ||
18d0002d | 2044 | struct ref_store *get_submodule_ref_store(const char *submodule) |
00eebe35 | 2045 | { |
126c9e05 | 2046 | struct strbuf submodule_sb = STRBUF_INIT; |
00eebe35 | 2047 | struct ref_store *refs; |
29babbee NTND |
2048 | char *to_free = NULL; |
2049 | size_t len; | |
34224e14 | 2050 | struct repository *subrepo; |
00eebe35 | 2051 | |
82a150f2 NTND |
2052 | if (!submodule) |
2053 | return NULL; | |
2054 | ||
873ea90d NTND |
2055 | len = strlen(submodule); |
2056 | while (len && is_dir_sep(submodule[len - 1])) | |
2057 | len--; | |
2058 | if (!len) | |
2059 | return NULL; | |
00eebe35 | 2060 | |
29babbee NTND |
2061 | if (submodule[len]) |
2062 | /* We need to strip off one or more trailing slashes */ | |
2063 | submodule = to_free = xmemdupz(submodule, len); | |
00eebe35 | 2064 | |
0c064d90 | 2065 | refs = lookup_ref_store_map(&submodule_ref_stores, submodule); |
126c9e05 | 2066 | if (refs) |
2c616c17 | 2067 | goto done; |
00eebe35 | 2068 | |
126c9e05 | 2069 | strbuf_addstr(&submodule_sb, submodule); |
2c616c17 NTND |
2070 | if (!is_nonbare_repository_dir(&submodule_sb)) |
2071 | goto done; | |
00eebe35 | 2072 | |
2c616c17 NTND |
2073 | if (submodule_to_gitdir(&submodule_sb, submodule)) |
2074 | goto done; | |
00eebe35 | 2075 | |
34224e14 JT |
2076 | subrepo = xmalloc(sizeof(*subrepo)); |
2077 | /* | |
2078 | * NEEDSWORK: Make get_submodule_ref_store() work with arbitrary | |
2079 | * superprojects other than the_repository. This probably should be | |
2080 | * done by making it take a struct repository * parameter instead of a | |
2081 | * submodule path. | |
2082 | */ | |
2083 | if (repo_submodule_init(subrepo, the_repository, submodule, | |
2084 | null_oid())) { | |
2085 | free(subrepo); | |
2086 | goto done; | |
2087 | } | |
2088 | refs = ref_store_init(subrepo, submodule_sb.buf, | |
9e7ec634 | 2089 | REF_STORE_READ | REF_STORE_ODB); |
0c064d90 NTND |
2090 | register_ref_store_map(&submodule_ref_stores, "submodule", |
2091 | refs, submodule); | |
5d0bc90e | 2092 | |
2c616c17 | 2093 | done: |
5d0bc90e | 2094 | strbuf_release(&submodule_sb); |
29babbee NTND |
2095 | free(to_free); |
2096 | ||
00eebe35 MH |
2097 | return refs; |
2098 | } | |
2099 | ||
17eff96b NTND |
2100 | struct ref_store *get_worktree_ref_store(const struct worktree *wt) |
2101 | { | |
2102 | struct ref_store *refs; | |
2103 | const char *id; | |
2104 | ||
2105 | if (wt->is_current) | |
23a3f0cb | 2106 | return get_main_ref_store(the_repository); |
17eff96b NTND |
2107 | |
2108 | id = wt->id ? wt->id : "/"; | |
2109 | refs = lookup_ref_store_map(&worktree_ref_stores, id); | |
2110 | if (refs) | |
2111 | return refs; | |
2112 | ||
2113 | if (wt->id) | |
34224e14 JT |
2114 | refs = ref_store_init(the_repository, |
2115 | git_common_path("worktrees/%s", wt->id), | |
17eff96b NTND |
2116 | REF_STORE_ALL_CAPS); |
2117 | else | |
34224e14 JT |
2118 | refs = ref_store_init(the_repository, |
2119 | get_git_common_dir(), | |
17eff96b NTND |
2120 | REF_STORE_ALL_CAPS); |
2121 | ||
2122 | if (refs) | |
2123 | register_ref_store_map(&worktree_ref_stores, "worktree", | |
2124 | refs, id); | |
2125 | return refs; | |
2126 | } | |
2127 | ||
f9f7fd3b HWN |
2128 | void base_ref_store_init(struct ref_store *refs, struct repository *repo, |
2129 | const char *path, const struct ref_storage_be *be) | |
00eebe35 | 2130 | { |
620a66b9 | 2131 | refs->be = be; |
f9f7fd3b HWN |
2132 | refs->repo = repo; |
2133 | refs->gitdir = xstrdup(path); | |
00eebe35 | 2134 | } |
127b42a1 RS |
2135 | |
2136 | /* backend functions */ | |
826ae79f | 2137 | int refs_pack_refs(struct ref_store *refs, struct pack_refs_opts *opts) |
8231527e | 2138 | { |
826ae79f | 2139 | return refs->be->pack_refs(refs, opts); |
8231527e MH |
2140 | } |
2141 | ||
36a31792 | 2142 | int peel_iterated_oid(const struct object_id *base, struct object_id *peeled) |
7d2df051 | 2143 | { |
36a31792 JK |
2144 | if (current_ref_iter && |
2145 | (current_ref_iter->oid == base || | |
2146 | oideq(current_ref_iter->oid, base))) | |
2147 | return ref_iterator_peel(current_ref_iter, peeled); | |
ba1c052f | 2148 | |
617480d7 | 2149 | return peel_object(base, peeled) ? -1 : 0; |
7d2df051 | 2150 | } |
bd427cf2 | 2151 | |
7d2df051 NTND |
2152 | int refs_create_symref(struct ref_store *refs, |
2153 | const char *ref_target, | |
2154 | const char *refs_heads_master, | |
2155 | const char *logmsg) | |
2156 | { | |
523fa69c JH |
2157 | char *msg; |
2158 | int retval; | |
2159 | ||
2160 | msg = normalize_reflog_message(logmsg); | |
2161 | retval = refs->be->create_symref(refs, ref_target, refs_heads_master, | |
2162 | msg); | |
2163 | free(msg); | |
2164 | return retval; | |
bd427cf2 MH |
2165 | } |
2166 | ||
284689ba MH |
2167 | int create_symref(const char *ref_target, const char *refs_heads_master, |
2168 | const char *logmsg) | |
2169 | { | |
23a3f0cb | 2170 | return refs_create_symref(get_main_ref_store(the_repository), ref_target, |
7d2df051 | 2171 | refs_heads_master, logmsg); |
284689ba MH |
2172 | } |
2173 | ||
2ced105c MH |
2174 | int ref_update_reject_duplicates(struct string_list *refnames, |
2175 | struct strbuf *err) | |
2176 | { | |
a552e50e | 2177 | size_t i, n = refnames->nr; |
2ced105c MH |
2178 | |
2179 | assert(err); | |
2180 | ||
8556f8d6 MH |
2181 | for (i = 1; i < n; i++) { |
2182 | int cmp = strcmp(refnames->items[i - 1].string, | |
2183 | refnames->items[i].string); | |
2184 | ||
2185 | if (!cmp) { | |
2ced105c | 2186 | strbuf_addf(err, |
661558f0 | 2187 | _("multiple updates for ref '%s' not allowed"), |
2ced105c MH |
2188 | refnames->items[i].string); |
2189 | return 1; | |
8556f8d6 | 2190 | } else if (cmp > 0) { |
033abf97 | 2191 | BUG("ref_update_reject_duplicates() received unsorted list"); |
2ced105c | 2192 | } |
8556f8d6 | 2193 | } |
2ced105c MH |
2194 | return 0; |
2195 | } | |
2196 | ||
67541597 PS |
2197 | static int run_transaction_hook(struct ref_transaction *transaction, |
2198 | const char *state) | |
2199 | { | |
2200 | struct child_process proc = CHILD_PROCESS_INIT; | |
2201 | struct strbuf buf = STRBUF_INIT; | |
0a0fbbe3 | 2202 | const char *hook; |
67541597 PS |
2203 | int ret = 0, i; |
2204 | ||
0a0fbbe3 | 2205 | hook = find_hook("reference-transaction"); |
67541597 | 2206 | if (!hook) |
67541597 | 2207 | return ret; |
67541597 | 2208 | |
c972bf4c | 2209 | strvec_pushl(&proc.args, hook, state, NULL); |
67541597 PS |
2210 | proc.in = -1; |
2211 | proc.stdout_to_stderr = 1; | |
2212 | proc.trace2_hook_name = "reference-transaction"; | |
2213 | ||
2214 | ret = start_command(&proc); | |
2215 | if (ret) | |
2216 | return ret; | |
2217 | ||
2218 | sigchain_push(SIGPIPE, SIG_IGN); | |
2219 | ||
2220 | for (i = 0; i < transaction->nr; i++) { | |
2221 | struct ref_update *update = transaction->updates[i]; | |
2222 | ||
2223 | strbuf_reset(&buf); | |
2224 | strbuf_addf(&buf, "%s %s %s\n", | |
2225 | oid_to_hex(&update->old_oid), | |
2226 | oid_to_hex(&update->new_oid), | |
2227 | update->refname); | |
2228 | ||
2229 | if (write_in_full(proc.in, buf.buf, buf.len) < 0) { | |
4755d7df ÆAB |
2230 | if (errno != EPIPE) { |
2231 | /* Don't leak errno outside this API */ | |
2232 | errno = 0; | |
67541597 | 2233 | ret = -1; |
4755d7df | 2234 | } |
67541597 PS |
2235 | break; |
2236 | } | |
2237 | } | |
2238 | ||
2239 | close(proc.in); | |
2240 | sigchain_pop(SIGPIPE); | |
2241 | strbuf_release(&buf); | |
2242 | ||
2243 | ret |= finish_command(&proc); | |
2244 | return ret; | |
2245 | } | |
2246 | ||
30173b88 MH |
2247 | int ref_transaction_prepare(struct ref_transaction *transaction, |
2248 | struct strbuf *err) | |
127b42a1 | 2249 | { |
c0fe4e8b | 2250 | struct ref_store *refs = transaction->ref_store; |
67541597 | 2251 | int ret; |
127b42a1 | 2252 | |
8d4240d3 MH |
2253 | switch (transaction->state) { |
2254 | case REF_TRANSACTION_OPEN: | |
2255 | /* Good. */ | |
2256 | break; | |
30173b88 | 2257 | case REF_TRANSACTION_PREPARED: |
033abf97 | 2258 | BUG("prepare called twice on reference transaction"); |
30173b88 | 2259 | break; |
8d4240d3 | 2260 | case REF_TRANSACTION_CLOSED: |
033abf97 | 2261 | BUG("prepare called on a closed reference transaction"); |
8d4240d3 MH |
2262 | break; |
2263 | default: | |
033abf97 | 2264 | BUG("unexpected reference transaction state"); |
8d4240d3 MH |
2265 | break; |
2266 | } | |
2267 | ||
ecd81dfc | 2268 | if (refs->repo->objects->odb->disable_ref_updates) { |
d8f4481c JK |
2269 | strbuf_addstr(err, |
2270 | _("ref updates forbidden inside quarantine environment")); | |
2271 | return -1; | |
2272 | } | |
2273 | ||
67541597 PS |
2274 | ret = refs->be->transaction_prepare(refs, transaction, err); |
2275 | if (ret) | |
2276 | return ret; | |
2277 | ||
2278 | ret = run_transaction_hook(transaction, "prepared"); | |
2279 | if (ret) { | |
2280 | ref_transaction_abort(transaction, err); | |
2281 | die(_("ref updates aborted by hook")); | |
2282 | } | |
2283 | ||
2284 | return 0; | |
30173b88 MH |
2285 | } |
2286 | ||
2287 | int ref_transaction_abort(struct ref_transaction *transaction, | |
2288 | struct strbuf *err) | |
2289 | { | |
2290 | struct ref_store *refs = transaction->ref_store; | |
2291 | int ret = 0; | |
2292 | ||
2293 | switch (transaction->state) { | |
2294 | case REF_TRANSACTION_OPEN: | |
2295 | /* No need to abort explicitly. */ | |
2296 | break; | |
2297 | case REF_TRANSACTION_PREPARED: | |
2298 | ret = refs->be->transaction_abort(refs, transaction, err); | |
2299 | break; | |
2300 | case REF_TRANSACTION_CLOSED: | |
033abf97 | 2301 | BUG("abort called on a closed reference transaction"); |
30173b88 MH |
2302 | break; |
2303 | default: | |
033abf97 | 2304 | BUG("unexpected reference transaction state"); |
30173b88 MH |
2305 | break; |
2306 | } | |
2307 | ||
67541597 PS |
2308 | run_transaction_hook(transaction, "aborted"); |
2309 | ||
30173b88 MH |
2310 | ref_transaction_free(transaction); |
2311 | return ret; | |
2312 | } | |
2313 | ||
2314 | int ref_transaction_commit(struct ref_transaction *transaction, | |
2315 | struct strbuf *err) | |
2316 | { | |
2317 | struct ref_store *refs = transaction->ref_store; | |
2318 | int ret; | |
2319 | ||
2320 | switch (transaction->state) { | |
2321 | case REF_TRANSACTION_OPEN: | |
2322 | /* Need to prepare first. */ | |
2323 | ret = ref_transaction_prepare(transaction, err); | |
2324 | if (ret) | |
2325 | return ret; | |
2326 | break; | |
2327 | case REF_TRANSACTION_PREPARED: | |
2328 | /* Fall through to finish. */ | |
2329 | break; | |
2330 | case REF_TRANSACTION_CLOSED: | |
033abf97 | 2331 | BUG("commit called on a closed reference transaction"); |
30173b88 MH |
2332 | break; |
2333 | default: | |
033abf97 | 2334 | BUG("unexpected reference transaction state"); |
30173b88 MH |
2335 | break; |
2336 | } | |
2337 | ||
67541597 PS |
2338 | ret = refs->be->transaction_finish(refs, transaction, err); |
2339 | if (!ret) | |
2340 | run_transaction_hook(transaction, "committed"); | |
2341 | return ret; | |
127b42a1 | 2342 | } |
62665823 | 2343 | |
7d2df051 NTND |
2344 | int refs_verify_refname_available(struct ref_store *refs, |
2345 | const char *refname, | |
b05855b5 | 2346 | const struct string_list *extras, |
7d2df051 NTND |
2347 | const struct string_list *skip, |
2348 | struct strbuf *err) | |
62665823 | 2349 | { |
b05855b5 MH |
2350 | const char *slash; |
2351 | const char *extra_refname; | |
2352 | struct strbuf dirname = STRBUF_INIT; | |
2353 | struct strbuf referent = STRBUF_INIT; | |
2354 | struct object_id oid; | |
2355 | unsigned int type; | |
2356 | struct ref_iterator *iter; | |
2357 | int ok; | |
2358 | int ret = -1; | |
2359 | ||
2360 | /* | |
2361 | * For the sake of comments in this function, suppose that | |
2362 | * refname is "refs/foo/bar". | |
2363 | */ | |
2364 | ||
2365 | assert(err); | |
2366 | ||
2367 | strbuf_grow(&dirname, strlen(refname) + 1); | |
2368 | for (slash = strchr(refname, '/'); slash; slash = strchr(slash + 1, '/')) { | |
8b72fea7 HWN |
2369 | /* |
2370 | * Just saying "Is a directory" when we e.g. can't | |
2371 | * lock some multi-level ref isn't very informative, | |
2372 | * the user won't be told *what* is a directory, so | |
2373 | * let's not use strerror() below. | |
2374 | */ | |
2375 | int ignore_errno; | |
b05855b5 MH |
2376 | /* Expand dirname to the new prefix, not including the trailing slash: */ |
2377 | strbuf_add(&dirname, refname + dirname.len, slash - refname - dirname.len); | |
2378 | ||
2379 | /* | |
2380 | * We are still at a leading dir of the refname (e.g., | |
2381 | * "refs/foo"; if there is a reference with that name, | |
2382 | * it is a conflict, *unless* it is in skip. | |
2383 | */ | |
2384 | if (skip && string_list_has_string(skip, dirname.buf)) | |
2385 | continue; | |
2386 | ||
8b72fea7 HWN |
2387 | if (!refs_read_raw_ref(refs, dirname.buf, &oid, &referent, |
2388 | &type, &ignore_errno)) { | |
661558f0 | 2389 | strbuf_addf(err, _("'%s' exists; cannot create '%s'"), |
b05855b5 MH |
2390 | dirname.buf, refname); |
2391 | goto cleanup; | |
2392 | } | |
2393 | ||
2394 | if (extras && string_list_has_string(extras, dirname.buf)) { | |
661558f0 | 2395 | strbuf_addf(err, _("cannot process '%s' and '%s' at the same time"), |
b05855b5 MH |
2396 | refname, dirname.buf); |
2397 | goto cleanup; | |
2398 | } | |
2399 | } | |
2400 | ||
2401 | /* | |
2402 | * We are at the leaf of our refname (e.g., "refs/foo/bar"). | |
2403 | * There is no point in searching for a reference with that | |
2404 | * name, because a refname isn't considered to conflict with | |
2405 | * itself. But we still need to check for references whose | |
2406 | * names are in the "refs/foo/bar/" namespace, because they | |
2407 | * *do* conflict. | |
2408 | */ | |
2409 | strbuf_addstr(&dirname, refname + dirname.len); | |
2410 | strbuf_addch(&dirname, '/'); | |
2411 | ||
2412 | iter = refs_ref_iterator_begin(refs, dirname.buf, 0, | |
2413 | DO_FOR_EACH_INCLUDE_BROKEN); | |
2414 | while ((ok = ref_iterator_advance(iter)) == ITER_OK) { | |
2415 | if (skip && | |
2416 | string_list_has_string(skip, iter->refname)) | |
2417 | continue; | |
2418 | ||
661558f0 | 2419 | strbuf_addf(err, _("'%s' exists; cannot create '%s'"), |
b05855b5 MH |
2420 | iter->refname, refname); |
2421 | ref_iterator_abort(iter); | |
2422 | goto cleanup; | |
2423 | } | |
2424 | ||
2425 | if (ok != ITER_DONE) | |
033abf97 | 2426 | BUG("error while iterating over references"); |
b05855b5 MH |
2427 | |
2428 | extra_refname = find_descendant_ref(dirname.buf, extras, skip); | |
2429 | if (extra_refname) | |
661558f0 | 2430 | strbuf_addf(err, _("cannot process '%s' and '%s' at the same time"), |
b05855b5 MH |
2431 | refname, extra_refname); |
2432 | else | |
2433 | ret = 0; | |
2434 | ||
2435 | cleanup: | |
2436 | strbuf_release(&referent); | |
2437 | strbuf_release(&dirname); | |
2438 | return ret; | |
62665823 | 2439 | } |
e3688bd6 | 2440 | |
7d2df051 | 2441 | int refs_for_each_reflog(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
e3688bd6 | 2442 | { |
e3688bd6 | 2443 | struct ref_iterator *iter; |
4a6067cd | 2444 | struct do_for_each_ref_help hp = { fn, cb_data }; |
e3688bd6 DT |
2445 | |
2446 | iter = refs->be->reflog_iterator_begin(refs); | |
2447 | ||
4a6067cd SB |
2448 | return do_for_each_repo_ref_iterator(the_repository, iter, |
2449 | do_for_each_ref_helper, &hp); | |
e3688bd6 DT |
2450 | } |
2451 | ||
7d2df051 | 2452 | int for_each_reflog(each_ref_fn fn, void *cb_data) |
e3688bd6 | 2453 | { |
23a3f0cb | 2454 | return refs_for_each_reflog(get_main_ref_store(the_repository), fn, cb_data); |
7d2df051 | 2455 | } |
e3688bd6 | 2456 | |
7d2df051 NTND |
2457 | int refs_for_each_reflog_ent_reverse(struct ref_store *refs, |
2458 | const char *refname, | |
2459 | each_reflog_ent_fn fn, | |
2460 | void *cb_data) | |
2461 | { | |
e3688bd6 DT |
2462 | return refs->be->for_each_reflog_ent_reverse(refs, refname, |
2463 | fn, cb_data); | |
2464 | } | |
2465 | ||
7d2df051 NTND |
2466 | int for_each_reflog_ent_reverse(const char *refname, each_reflog_ent_fn fn, |
2467 | void *cb_data) | |
2468 | { | |
23a3f0cb | 2469 | return refs_for_each_reflog_ent_reverse(get_main_ref_store(the_repository), |
7d2df051 NTND |
2470 | refname, fn, cb_data); |
2471 | } | |
2472 | ||
2473 | int refs_for_each_reflog_ent(struct ref_store *refs, const char *refname, | |
2474 | each_reflog_ent_fn fn, void *cb_data) | |
2475 | { | |
2476 | return refs->be->for_each_reflog_ent(refs, refname, fn, cb_data); | |
2477 | } | |
2478 | ||
e3688bd6 DT |
2479 | int for_each_reflog_ent(const char *refname, each_reflog_ent_fn fn, |
2480 | void *cb_data) | |
2481 | { | |
23a3f0cb | 2482 | return refs_for_each_reflog_ent(get_main_ref_store(the_repository), refname, |
7d2df051 NTND |
2483 | fn, cb_data); |
2484 | } | |
e3688bd6 | 2485 | |
7d2df051 NTND |
2486 | int refs_reflog_exists(struct ref_store *refs, const char *refname) |
2487 | { | |
2488 | return refs->be->reflog_exists(refs, refname); | |
e3688bd6 DT |
2489 | } |
2490 | ||
2491 | int reflog_exists(const char *refname) | |
2492 | { | |
23a3f0cb | 2493 | return refs_reflog_exists(get_main_ref_store(the_repository), refname); |
7d2df051 | 2494 | } |
e3688bd6 | 2495 | |
7d2df051 | 2496 | int refs_create_reflog(struct ref_store *refs, const char *refname, |
7b089120 | 2497 | struct strbuf *err) |
7d2df051 | 2498 | { |
7b089120 | 2499 | return refs->be->create_reflog(refs, refname, err); |
e3688bd6 DT |
2500 | } |
2501 | ||
7b089120 | 2502 | int safe_create_reflog(const char *refname, struct strbuf *err) |
e3688bd6 | 2503 | { |
23a3f0cb | 2504 | return refs_create_reflog(get_main_ref_store(the_repository), refname, |
7b089120 | 2505 | err); |
7d2df051 | 2506 | } |
e3688bd6 | 2507 | |
7d2df051 NTND |
2508 | int refs_delete_reflog(struct ref_store *refs, const char *refname) |
2509 | { | |
2510 | return refs->be->delete_reflog(refs, refname); | |
e3688bd6 DT |
2511 | } |
2512 | ||
2513 | int delete_reflog(const char *refname) | |
2514 | { | |
23a3f0cb | 2515 | return refs_delete_reflog(get_main_ref_store(the_repository), refname); |
7d2df051 | 2516 | } |
e3688bd6 | 2517 | |
7d2df051 | 2518 | int refs_reflog_expire(struct ref_store *refs, |
cc40b5ce | 2519 | const char *refname, |
7d2df051 NTND |
2520 | unsigned int flags, |
2521 | reflog_expiry_prepare_fn prepare_fn, | |
2522 | reflog_expiry_should_prune_fn should_prune_fn, | |
2523 | reflog_expiry_cleanup_fn cleanup_fn, | |
2524 | void *policy_cb_data) | |
2525 | { | |
cc40b5ce | 2526 | return refs->be->reflog_expire(refs, refname, flags, |
7d2df051 NTND |
2527 | prepare_fn, should_prune_fn, |
2528 | cleanup_fn, policy_cb_data); | |
e3688bd6 DT |
2529 | } |
2530 | ||
cc40b5ce | 2531 | int reflog_expire(const char *refname, |
e3688bd6 DT |
2532 | unsigned int flags, |
2533 | reflog_expiry_prepare_fn prepare_fn, | |
2534 | reflog_expiry_should_prune_fn should_prune_fn, | |
2535 | reflog_expiry_cleanup_fn cleanup_fn, | |
2536 | void *policy_cb_data) | |
2537 | { | |
23a3f0cb | 2538 | return refs_reflog_expire(get_main_ref_store(the_repository), |
cc40b5ce | 2539 | refname, flags, |
7d2df051 NTND |
2540 | prepare_fn, should_prune_fn, |
2541 | cleanup_fn, policy_cb_data); | |
e3688bd6 | 2542 | } |
fc681463 DT |
2543 | |
2544 | int initial_ref_transaction_commit(struct ref_transaction *transaction, | |
2545 | struct strbuf *err) | |
2546 | { | |
c0fe4e8b | 2547 | struct ref_store *refs = transaction->ref_store; |
fc681463 DT |
2548 | |
2549 | return refs->be->initial_transaction_commit(refs, transaction, err); | |
2550 | } | |
a27dcf89 | 2551 | |
4f2ba2d0 PS |
2552 | void ref_transaction_for_each_queued_update(struct ref_transaction *transaction, |
2553 | ref_transaction_for_each_queued_update_fn cb, | |
2554 | void *cb_data) | |
2555 | { | |
2556 | int i; | |
2557 | ||
2558 | for (i = 0; i < transaction->nr; i++) { | |
2559 | struct ref_update *update = transaction->updates[i]; | |
2560 | ||
2561 | cb(update->refname, | |
2562 | (update->flags & REF_HAVE_OLD) ? &update->old_oid : NULL, | |
2563 | (update->flags & REF_HAVE_NEW) ? &update->new_oid : NULL, | |
2564 | cb_data); | |
2565 | } | |
2566 | } | |
2567 | ||
523fa69c | 2568 | int refs_delete_refs(struct ref_store *refs, const char *logmsg, |
64da4199 | 2569 | struct string_list *refnames, unsigned int flags) |
a27dcf89 | 2570 | { |
523fa69c JH |
2571 | char *msg; |
2572 | int retval; | |
2573 | ||
2574 | msg = normalize_reflog_message(logmsg); | |
2575 | retval = refs->be->delete_refs(refs, msg, refnames, flags); | |
2576 | free(msg); | |
2577 | return retval; | |
a27dcf89 | 2578 | } |
9b6b40d9 | 2579 | |
64da4199 MH |
2580 | int delete_refs(const char *msg, struct string_list *refnames, |
2581 | unsigned int flags) | |
9b6b40d9 | 2582 | { |
23a3f0cb | 2583 | return refs_delete_refs(get_main_ref_store(the_repository), msg, refnames, flags); |
7d2df051 | 2584 | } |
9b6b40d9 | 2585 | |
7d2df051 NTND |
2586 | int refs_rename_ref(struct ref_store *refs, const char *oldref, |
2587 | const char *newref, const char *logmsg) | |
2588 | { | |
523fa69c JH |
2589 | char *msg; |
2590 | int retval; | |
2591 | ||
2592 | msg = normalize_reflog_message(logmsg); | |
2593 | retval = refs->be->rename_ref(refs, oldref, newref, msg); | |
2594 | free(msg); | |
2595 | return retval; | |
9b6b40d9 | 2596 | } |
7d2df051 NTND |
2597 | |
2598 | int rename_ref(const char *oldref, const char *newref, const char *logmsg) | |
2599 | { | |
23a3f0cb | 2600 | return refs_rename_ref(get_main_ref_store(the_repository), oldref, newref, logmsg); |
7d2df051 | 2601 | } |
52d59cc6 SD |
2602 | |
2603 | int refs_copy_existing_ref(struct ref_store *refs, const char *oldref, | |
2604 | const char *newref, const char *logmsg) | |
2605 | { | |
523fa69c JH |
2606 | char *msg; |
2607 | int retval; | |
2608 | ||
2609 | msg = normalize_reflog_message(logmsg); | |
2610 | retval = refs->be->copy_ref(refs, oldref, newref, msg); | |
2611 | free(msg); | |
2612 | return retval; | |
52d59cc6 SD |
2613 | } |
2614 | ||
2615 | int copy_existing_ref(const char *oldref, const char *newref, const char *logmsg) | |
2616 | { | |
23a3f0cb | 2617 | return refs_copy_existing_ref(get_main_ref_store(the_repository), oldref, newref, logmsg); |
52d59cc6 | 2618 | } |