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Commit | Line | Data |
---|---|---|
7bd9bcf3 MH |
1 | /* |
2 | * The backend-independent part of the reference module. | |
3 | */ | |
4 | ||
95fc7512 | 5 | #include "cache.h" |
b2141fc1 | 6 | #include "config.h" |
7d4558c4 | 7 | #include "hashmap.h" |
697cc8ef | 8 | #include "lockfile.h" |
b05855b5 | 9 | #include "iterator.h" |
85023577 | 10 | #include "refs.h" |
4cb77009 | 11 | #include "refs/refs-internal.h" |
67541597 | 12 | #include "run-command.h" |
5e3aba33 | 13 | #include "hook.h" |
cbd53a21 | 14 | #include "object-store.h" |
cf0adba7 JH |
15 | #include "object.h" |
16 | #include "tag.h" | |
5d0bc90e | 17 | #include "submodule.h" |
17eff96b | 18 | #include "worktree.h" |
dbbcd44f | 19 | #include "strvec.h" |
23a3f0cb | 20 | #include "repository.h" |
67541597 | 21 | #include "sigchain.h" |
88c7b4c3 | 22 | #include "date.h" |
b9342b3f | 23 | #include "commit.h" |
3581d793 | 24 | |
3dce444f RS |
25 | /* |
26 | * List of all available backends | |
27 | */ | |
28 | static struct ref_storage_be *refs_backends = &refs_be_files; | |
29 | ||
30 | static struct ref_storage_be *find_ref_storage_backend(const char *name) | |
31 | { | |
32 | struct ref_storage_be *be; | |
33 | for (be = refs_backends; be; be = be->next) | |
34 | if (!strcmp(be->name, name)) | |
35 | return be; | |
36 | return NULL; | |
37 | } | |
38 | ||
bc5fd6d3 | 39 | /* |
dde8a902 DT |
40 | * How to handle various characters in refnames: |
41 | * 0: An acceptable character for refs | |
5e650228 JH |
42 | * 1: End-of-component |
43 | * 2: ., look for a preceding . to reject .. in refs | |
44 | * 3: {, look for a preceding @ to reject @{ in refs | |
53a8555e | 45 | * 4: A bad character: ASCII control characters, and |
cd377f45 JK |
46 | * ":", "?", "[", "\", "^", "~", SP, or TAB |
47 | * 5: *, reject unless REFNAME_REFSPEC_PATTERN is set | |
dde8a902 DT |
48 | */ |
49 | static unsigned char refname_disposition[256] = { | |
5e650228 JH |
50 | 1, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, |
51 | 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, | |
cd377f45 | 52 | 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5, 0, 0, 0, 2, 1, |
5e650228 | 53 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0, 0, 0, 4, |
dde8a902 | 54 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
5e650228 JH |
55 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 4, 0, 4, 0, |
56 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
57 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 4, 4 | |
dde8a902 DT |
58 | }; |
59 | ||
b9342b3f DS |
60 | struct ref_namespace_info ref_namespace[] = { |
61 | [NAMESPACE_HEAD] = { | |
62 | .ref = "HEAD", | |
63 | .decoration = DECORATION_REF_HEAD, | |
64 | .exact = 1, | |
65 | }, | |
66 | [NAMESPACE_BRANCHES] = { | |
67 | .ref = "refs/heads/", | |
68 | .decoration = DECORATION_REF_LOCAL, | |
69 | }, | |
70 | [NAMESPACE_TAGS] = { | |
71 | .ref = "refs/tags/", | |
72 | .decoration = DECORATION_REF_TAG, | |
73 | }, | |
74 | [NAMESPACE_REMOTE_REFS] = { | |
75 | /* | |
76 | * The default refspec for new remotes copies refs from | |
77 | * refs/heads/ on the remote into refs/remotes/<remote>/. | |
78 | * As such, "refs/remotes/" has special handling. | |
79 | */ | |
80 | .ref = "refs/remotes/", | |
81 | .decoration = DECORATION_REF_REMOTE, | |
82 | }, | |
83 | [NAMESPACE_STASH] = { | |
84 | /* | |
85 | * The single ref "refs/stash" stores the latest stash. | |
86 | * Older stashes can be found in the reflog. | |
87 | */ | |
88 | .ref = "refs/stash", | |
89 | .exact = 1, | |
90 | .decoration = DECORATION_REF_STASH, | |
91 | }, | |
92 | [NAMESPACE_REPLACE] = { | |
93 | /* | |
94 | * This namespace allows Git to act as if one object ID | |
95 | * points to the content of another. Unlike the other | |
96 | * ref namespaces, this one can be changed by the | |
97 | * GIT_REPLACE_REF_BASE environment variable. This | |
98 | * .namespace value will be overwritten in setup_git_env(). | |
99 | */ | |
100 | .ref = "refs/replace/", | |
101 | .decoration = DECORATION_GRAFTED, | |
102 | }, | |
103 | [NAMESPACE_NOTES] = { | |
104 | /* | |
105 | * The refs/notes/commit ref points to the tip of a | |
106 | * parallel commit history that adds metadata to commits | |
107 | * in the normal history. This ref can be overwritten | |
108 | * by the core.notesRef config variable or the | |
109 | * GIT_NOTES_REFS environment variable. | |
110 | */ | |
111 | .ref = "refs/notes/commit", | |
112 | .exact = 1, | |
113 | }, | |
114 | [NAMESPACE_PREFETCH] = { | |
115 | /* | |
116 | * Prefetch refs are written by the background 'fetch' | |
117 | * maintenance task. It allows faster foreground fetches | |
118 | * by advertising these previously-downloaded tips without | |
119 | * updating refs/remotes/ without user intervention. | |
120 | */ | |
121 | .ref = "refs/prefetch/", | |
122 | }, | |
123 | [NAMESPACE_REWRITTEN] = { | |
124 | /* | |
125 | * Rewritten refs are used by the 'label' command in the | |
126 | * sequencer. These are particularly useful during an | |
127 | * interactive rebase that uses the 'merge' command. | |
128 | */ | |
129 | .ref = "refs/rewritten/", | |
130 | }, | |
131 | }; | |
132 | ||
133 | void update_ref_namespace(enum ref_namespace namespace, char *ref) | |
134 | { | |
135 | struct ref_namespace_info *info = &ref_namespace[namespace]; | |
136 | if (info->ref_updated) | |
137 | free(info->ref); | |
138 | info->ref = ref; | |
139 | info->ref_updated = 1; | |
140 | } | |
141 | ||
dde8a902 DT |
142 | /* |
143 | * Try to read one refname component from the front of refname. | |
144 | * Return the length of the component found, or -1 if the component is | |
145 | * not legal. It is legal if it is something reasonable to have under | |
146 | * ".git/refs/"; We do not like it if: | |
bc5fd6d3 | 147 | * |
1de16aec | 148 | * - it begins with ".", or |
bc5fd6d3 | 149 | * - it has double dots "..", or |
53a8555e | 150 | * - it has ASCII control characters, or |
cd377f45 JK |
151 | * - it has ":", "?", "[", "\", "^", "~", SP, or TAB anywhere, or |
152 | * - it has "*" anywhere unless REFNAME_REFSPEC_PATTERN is set, or | |
53a8555e JK |
153 | * - it ends with a "/", or |
154 | * - it ends with ".lock", or | |
155 | * - it contains a "@{" portion | |
1de16aec NTND |
156 | * |
157 | * When sanitized is not NULL, instead of rejecting the input refname | |
158 | * as an error, try to come up with a usable replacement for the input | |
159 | * refname in it. | |
bc5fd6d3 | 160 | */ |
1de16aec NTND |
161 | static int check_refname_component(const char *refname, int *flags, |
162 | struct strbuf *sanitized) | |
bc5fd6d3 MH |
163 | { |
164 | const char *cp; | |
165 | char last = '\0'; | |
1de16aec NTND |
166 | size_t component_start = 0; /* garbage - not a reasonable initial value */ |
167 | ||
168 | if (sanitized) | |
169 | component_start = sanitized->len; | |
bc5fd6d3 MH |
170 | |
171 | for (cp = refname; ; cp++) { | |
dde8a902 DT |
172 | int ch = *cp & 255; |
173 | unsigned char disp = refname_disposition[ch]; | |
1de16aec NTND |
174 | |
175 | if (sanitized && disp != 1) | |
176 | strbuf_addch(sanitized, ch); | |
177 | ||
dde8a902 | 178 | switch (disp) { |
5e650228 | 179 | case 1: |
dde8a902 | 180 | goto out; |
5e650228 | 181 | case 2: |
1de16aec NTND |
182 | if (last == '.') { /* Refname contains "..". */ |
183 | if (sanitized) | |
184 | /* collapse ".." to single "." */ | |
185 | strbuf_setlen(sanitized, sanitized->len - 1); | |
186 | else | |
187 | return -1; | |
188 | } | |
dde8a902 | 189 | break; |
5e650228 | 190 | case 3: |
1de16aec NTND |
191 | if (last == '@') { /* Refname contains "@{". */ |
192 | if (sanitized) | |
193 | sanitized->buf[sanitized->len-1] = '-'; | |
194 | else | |
195 | return -1; | |
196 | } | |
bc5fd6d3 | 197 | break; |
5e650228 | 198 | case 4: |
1de16aec NTND |
199 | /* forbidden char */ |
200 | if (sanitized) | |
201 | sanitized->buf[sanitized->len-1] = '-'; | |
202 | else | |
203 | return -1; | |
204 | break; | |
cd377f45 | 205 | case 5: |
1de16aec NTND |
206 | if (!(*flags & REFNAME_REFSPEC_PATTERN)) { |
207 | /* refspec can't be a pattern */ | |
208 | if (sanitized) | |
209 | sanitized->buf[sanitized->len-1] = '-'; | |
210 | else | |
211 | return -1; | |
212 | } | |
cd377f45 JK |
213 | |
214 | /* | |
215 | * Unset the pattern flag so that we only accept | |
216 | * a single asterisk for one side of refspec. | |
217 | */ | |
218 | *flags &= ~ REFNAME_REFSPEC_PATTERN; | |
219 | break; | |
dde8a902 | 220 | } |
bc5fd6d3 MH |
221 | last = ch; |
222 | } | |
dde8a902 | 223 | out: |
bc5fd6d3 | 224 | if (cp == refname) |
dac529e4 | 225 | return 0; /* Component has zero length. */ |
1de16aec NTND |
226 | |
227 | if (refname[0] == '.') { /* Component starts with '.'. */ | |
228 | if (sanitized) | |
229 | sanitized->buf[component_start] = '-'; | |
230 | else | |
231 | return -1; | |
232 | } | |
7108ad23 | 233 | if (cp - refname >= LOCK_SUFFIX_LEN && |
1de16aec NTND |
234 | !memcmp(cp - LOCK_SUFFIX_LEN, LOCK_SUFFIX, LOCK_SUFFIX_LEN)) { |
235 | if (!sanitized) | |
236 | return -1; | |
237 | /* Refname ends with ".lock". */ | |
238 | while (strbuf_strip_suffix(sanitized, LOCK_SUFFIX)) { | |
239 | /* try again in case we have .lock.lock */ | |
240 | } | |
241 | } | |
bc5fd6d3 MH |
242 | return cp - refname; |
243 | } | |
244 | ||
1de16aec NTND |
245 | static int check_or_sanitize_refname(const char *refname, int flags, |
246 | struct strbuf *sanitized) | |
bc5fd6d3 MH |
247 | { |
248 | int component_len, component_count = 0; | |
249 | ||
1de16aec | 250 | if (!strcmp(refname, "@")) { |
9ba89f48 | 251 | /* Refname is a single character '@'. */ |
1de16aec NTND |
252 | if (sanitized) |
253 | strbuf_addch(sanitized, '-'); | |
254 | else | |
255 | return -1; | |
256 | } | |
9ba89f48 | 257 | |
bc5fd6d3 | 258 | while (1) { |
1de16aec NTND |
259 | if (sanitized && sanitized->len) |
260 | strbuf_complete(sanitized, '/'); | |
261 | ||
bc5fd6d3 | 262 | /* We are at the start of a path component. */ |
1de16aec NTND |
263 | component_len = check_refname_component(refname, &flags, |
264 | sanitized); | |
265 | if (sanitized && component_len == 0) | |
266 | ; /* OK, omit empty component */ | |
267 | else if (component_len <= 0) | |
cd377f45 JK |
268 | return -1; |
269 | ||
bc5fd6d3 MH |
270 | component_count++; |
271 | if (refname[component_len] == '\0') | |
272 | break; | |
273 | /* Skip to next component. */ | |
274 | refname += component_len + 1; | |
275 | } | |
276 | ||
1de16aec NTND |
277 | if (refname[component_len - 1] == '.') { |
278 | /* Refname ends with '.'. */ | |
279 | if (sanitized) | |
280 | ; /* omit ending dot */ | |
281 | else | |
282 | return -1; | |
283 | } | |
bc5fd6d3 MH |
284 | if (!(flags & REFNAME_ALLOW_ONELEVEL) && component_count < 2) |
285 | return -1; /* Refname has only one component. */ | |
286 | return 0; | |
287 | } | |
288 | ||
1de16aec NTND |
289 | int check_refname_format(const char *refname, int flags) |
290 | { | |
291 | return check_or_sanitize_refname(refname, flags, NULL); | |
292 | } | |
293 | ||
294 | void sanitize_refname_component(const char *refname, struct strbuf *out) | |
295 | { | |
296 | if (check_or_sanitize_refname(refname, REFNAME_ALLOW_ONELEVEL, out)) | |
297 | BUG("sanitizing refname '%s' check returned error", refname); | |
298 | } | |
299 | ||
4cb77009 | 300 | int refname_is_safe(const char *refname) |
d0f810f0 | 301 | { |
39950fef MH |
302 | const char *rest; |
303 | ||
304 | if (skip_prefix(refname, "refs/", &rest)) { | |
d0f810f0 RS |
305 | char *buf; |
306 | int result; | |
e40f3557 MH |
307 | size_t restlen = strlen(rest); |
308 | ||
309 | /* rest must not be empty, or start or end with "/" */ | |
310 | if (!restlen || *rest == '/' || rest[restlen - 1] == '/') | |
311 | return 0; | |
d0f810f0 | 312 | |
d0f810f0 RS |
313 | /* |
314 | * Does the refname try to escape refs/? | |
315 | * For example: refs/foo/../bar is safe but refs/foo/../../bar | |
316 | * is not. | |
317 | */ | |
e40f3557 MH |
318 | buf = xmallocz(restlen); |
319 | result = !normalize_path_copy(buf, rest) && !strcmp(buf, rest); | |
d0f810f0 RS |
320 | free(buf); |
321 | return result; | |
322 | } | |
35db25c6 MH |
323 | |
324 | do { | |
d0f810f0 RS |
325 | if (!isupper(*refname) && *refname != '_') |
326 | return 0; | |
327 | refname++; | |
35db25c6 | 328 | } while (*refname); |
d0f810f0 RS |
329 | return 1; |
330 | } | |
331 | ||
67be7c5a MH |
332 | /* |
333 | * Return true if refname, which has the specified oid and flags, can | |
334 | * be resolved to an object in the database. If the referred-to object | |
335 | * does not exist, emit a warning and return false. | |
336 | */ | |
337 | int ref_resolves_to_object(const char *refname, | |
9bc45a28 | 338 | struct repository *repo, |
67be7c5a MH |
339 | const struct object_id *oid, |
340 | unsigned int flags) | |
341 | { | |
342 | if (flags & REF_ISBROKEN) | |
343 | return 0; | |
9bc45a28 | 344 | if (!repo_has_object_file(repo, oid)) { |
661558f0 | 345 | error(_("%s does not point to a valid object!"), refname); |
67be7c5a MH |
346 | return 0; |
347 | } | |
348 | return 1; | |
349 | } | |
350 | ||
7d2df051 NTND |
351 | char *refs_resolve_refdup(struct ref_store *refs, |
352 | const char *refname, int resolve_flags, | |
0f2dc722 | 353 | struct object_id *oid, int *flags) |
7d2df051 NTND |
354 | { |
355 | const char *result; | |
356 | ||
357 | result = refs_resolve_ref_unsafe(refs, refname, resolve_flags, | |
ce14de03 | 358 | oid, flags); |
7d2df051 NTND |
359 | return xstrdup_or_null(result); |
360 | } | |
361 | ||
7bd9bcf3 | 362 | char *resolve_refdup(const char *refname, int resolve_flags, |
0f2dc722 | 363 | struct object_id *oid, int *flags) |
e1e22e37 | 364 | { |
23a3f0cb | 365 | return refs_resolve_refdup(get_main_ref_store(the_repository), |
7d2df051 | 366 | refname, resolve_flags, |
0f2dc722 | 367 | oid, flags); |
cddc4258 MH |
368 | } |
369 | ||
7bd9bcf3 MH |
370 | /* The argument to filter_refs */ |
371 | struct ref_filter { | |
372 | const char *pattern; | |
9ab9b5df | 373 | const char *prefix; |
7bd9bcf3 MH |
374 | each_ref_fn *fn; |
375 | void *cb_data; | |
376 | }; | |
432ad41e | 377 | |
76887df0 | 378 | int read_ref_full(const char *refname, int resolve_flags, struct object_id *oid, int *flags) |
732134ed | 379 | { |
76887df0 ÆAB |
380 | struct ref_store *refs = get_main_ref_store(the_repository); |
381 | ||
f1da24ca | 382 | if (refs_resolve_ref_unsafe(refs, refname, resolve_flags, |
ce14de03 | 383 | oid, flags)) |
7bd9bcf3 MH |
384 | return 0; |
385 | return -1; | |
732134ed MH |
386 | } |
387 | ||
34c290a6 | 388 | int read_ref(const char *refname, struct object_id *oid) |
cddc4258 | 389 | { |
34c290a6 | 390 | return read_ref_full(refname, RESOLVE_REF_READING, oid, NULL); |
c774aab9 JP |
391 | } |
392 | ||
3f9f1acc | 393 | int refs_ref_exists(struct ref_store *refs, const char *refname) |
b3cd33d0 | 394 | { |
f1da24ca | 395 | return !!refs_resolve_ref_unsafe(refs, refname, RESOLVE_REF_READING, |
ce14de03 | 396 | NULL, NULL); |
b3cd33d0 NTND |
397 | } |
398 | ||
7bd9bcf3 | 399 | int ref_exists(const char *refname) |
bc5fd6d3 | 400 | { |
b3cd33d0 | 401 | return refs_ref_exists(get_main_ref_store(the_repository), refname); |
bc5fd6d3 MH |
402 | } |
403 | ||
7bd9bcf3 MH |
404 | static int filter_refs(const char *refname, const struct object_id *oid, |
405 | int flags, void *data) | |
432ad41e | 406 | { |
7bd9bcf3 MH |
407 | struct ref_filter *filter = (struct ref_filter *)data; |
408 | ||
55d34269 | 409 | if (wildmatch(filter->pattern, refname, 0)) |
7bd9bcf3 | 410 | return 0; |
9ab9b5df RA |
411 | if (filter->prefix) |
412 | skip_prefix(refname, filter->prefix, &refname); | |
7bd9bcf3 | 413 | return filter->fn(refname, oid, flags, filter->cb_data); |
432ad41e MH |
414 | } |
415 | ||
ac2ed0d7 | 416 | enum peel_status peel_object(const struct object_id *name, struct object_id *oid) |
c774aab9 | 417 | { |
45a187cc | 418 | struct object *o = lookup_unknown_object(the_repository, name); |
c774aab9 | 419 | |
7bd9bcf3 | 420 | if (o->type == OBJ_NONE) { |
0df8e965 | 421 | int type = oid_object_info(the_repository, name, NULL); |
6da43d93 | 422 | if (type < 0 || !object_as_type(o, type, 0)) |
7bd9bcf3 MH |
423 | return PEEL_INVALID; |
424 | } | |
bc5fd6d3 | 425 | |
7bd9bcf3 MH |
426 | if (o->type != OBJ_TAG) |
427 | return PEEL_NON_TAG; | |
e1980c9d | 428 | |
7bd9bcf3 MH |
429 | o = deref_tag_noverify(o); |
430 | if (!o) | |
431 | return PEEL_INVALID; | |
432 | ||
ac2ed0d7 | 433 | oidcpy(oid, &o->oid); |
7bd9bcf3 | 434 | return PEEL_PEELED; |
e1980c9d JH |
435 | } |
436 | ||
7bd9bcf3 MH |
437 | struct warn_if_dangling_data { |
438 | FILE *fp; | |
439 | const char *refname; | |
440 | const struct string_list *refnames; | |
441 | const char *msg_fmt; | |
442 | }; | |
bc5fd6d3 | 443 | |
63e14ee2 | 444 | static int warn_if_dangling_symref(const char *refname, |
5cf88fd8 | 445 | const struct object_id *oid UNUSED, |
7bd9bcf3 MH |
446 | int flags, void *cb_data) |
447 | { | |
448 | struct warn_if_dangling_data *d = cb_data; | |
449 | const char *resolves_to; | |
bc5fd6d3 | 450 | |
7bd9bcf3 MH |
451 | if (!(flags & REF_ISSYMREF)) |
452 | return 0; | |
bc5fd6d3 | 453 | |
744c040b | 454 | resolves_to = resolve_ref_unsafe(refname, 0, NULL, NULL); |
7bd9bcf3 MH |
455 | if (!resolves_to |
456 | || (d->refname | |
457 | ? strcmp(resolves_to, d->refname) | |
458 | : !string_list_has_string(d->refnames, resolves_to))) { | |
459 | return 0; | |
460 | } | |
bc5fd6d3 | 461 | |
7bd9bcf3 MH |
462 | fprintf(d->fp, d->msg_fmt, refname); |
463 | fputc('\n', d->fp); | |
464 | return 0; | |
bc5fd6d3 MH |
465 | } |
466 | ||
7bd9bcf3 | 467 | void warn_dangling_symref(FILE *fp, const char *msg_fmt, const char *refname) |
f348ac92 | 468 | { |
7bd9bcf3 MH |
469 | struct warn_if_dangling_data data; |
470 | ||
471 | data.fp = fp; | |
472 | data.refname = refname; | |
473 | data.refnames = NULL; | |
474 | data.msg_fmt = msg_fmt; | |
475 | for_each_rawref(warn_if_dangling_symref, &data); | |
f348ac92 MH |
476 | } |
477 | ||
7bd9bcf3 | 478 | void warn_dangling_symrefs(FILE *fp, const char *msg_fmt, const struct string_list *refnames) |
432ad41e | 479 | { |
7bd9bcf3 | 480 | struct warn_if_dangling_data data; |
432ad41e | 481 | |
7bd9bcf3 MH |
482 | data.fp = fp; |
483 | data.refname = NULL; | |
484 | data.refnames = refnames; | |
485 | data.msg_fmt = msg_fmt; | |
486 | for_each_rawref(warn_if_dangling_symref, &data); | |
432ad41e MH |
487 | } |
488 | ||
7d2df051 NTND |
489 | int refs_for_each_tag_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
490 | { | |
491 | return refs_for_each_ref_in(refs, "refs/tags/", fn, cb_data); | |
492 | } | |
493 | ||
7bd9bcf3 | 494 | int for_each_tag_ref(each_ref_fn fn, void *cb_data) |
432ad41e | 495 | { |
23a3f0cb | 496 | return refs_for_each_tag_ref(get_main_ref_store(the_repository), fn, cb_data); |
432ad41e MH |
497 | } |
498 | ||
7d2df051 NTND |
499 | int refs_for_each_branch_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
500 | { | |
501 | return refs_for_each_ref_in(refs, "refs/heads/", fn, cb_data); | |
432ad41e MH |
502 | } |
503 | ||
7bd9bcf3 | 504 | int for_each_branch_ref(each_ref_fn fn, void *cb_data) |
432ad41e | 505 | { |
23a3f0cb | 506 | return refs_for_each_branch_ref(get_main_ref_store(the_repository), fn, cb_data); |
432ad41e MH |
507 | } |
508 | ||
7d2df051 NTND |
509 | int refs_for_each_remote_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
510 | { | |
511 | return refs_for_each_ref_in(refs, "refs/remotes/", fn, cb_data); | |
202a56a9 | 512 | } |
432ad41e | 513 | |
7bd9bcf3 | 514 | int for_each_remote_ref(each_ref_fn fn, void *cb_data) |
e9c4c111 | 515 | { |
23a3f0cb | 516 | return refs_for_each_remote_ref(get_main_ref_store(the_repository), fn, cb_data); |
202a56a9 MH |
517 | } |
518 | ||
7bd9bcf3 MH |
519 | int head_ref_namespaced(each_ref_fn fn, void *cb_data) |
520 | { | |
521 | struct strbuf buf = STRBUF_INIT; | |
522 | int ret = 0; | |
523 | struct object_id oid; | |
524 | int flag; | |
c774aab9 | 525 | |
7bd9bcf3 | 526 | strbuf_addf(&buf, "%sHEAD", get_git_namespace()); |
34c290a6 | 527 | if (!read_ref_full(buf.buf, RESOLVE_REF_READING, &oid, &flag)) |
7bd9bcf3 MH |
528 | ret = fn(buf.buf, &oid, flag, cb_data); |
529 | strbuf_release(&buf); | |
c774aab9 | 530 | |
7bd9bcf3 | 531 | return ret; |
e9c4c111 | 532 | } |
c774aab9 | 533 | |
65516f58 RA |
534 | void normalize_glob_ref(struct string_list_item *item, const char *prefix, |
535 | const char *pattern) | |
536 | { | |
537 | struct strbuf normalized_pattern = STRBUF_INIT; | |
538 | ||
539 | if (*pattern == '/') | |
540 | BUG("pattern must not start with '/'"); | |
541 | ||
b877e617 | 542 | if (prefix) |
65516f58 | 543 | strbuf_addstr(&normalized_pattern, prefix); |
b877e617 DS |
544 | else if (!starts_with(pattern, "refs/") && |
545 | strcmp(pattern, "HEAD")) | |
65516f58 | 546 | strbuf_addstr(&normalized_pattern, "refs/"); |
b877e617 DS |
547 | /* |
548 | * NEEDSWORK: Special case other symrefs such as REBASE_HEAD, | |
549 | * MERGE_HEAD, etc. | |
550 | */ | |
551 | ||
65516f58 RA |
552 | strbuf_addstr(&normalized_pattern, pattern); |
553 | strbuf_strip_suffix(&normalized_pattern, "/"); | |
554 | ||
555 | item->string = strbuf_detach(&normalized_pattern, NULL); | |
556 | item->util = has_glob_specials(pattern) ? NULL : item->string; | |
557 | strbuf_release(&normalized_pattern); | |
558 | } | |
559 | ||
7bd9bcf3 MH |
560 | int for_each_glob_ref_in(each_ref_fn fn, const char *pattern, |
561 | const char *prefix, void *cb_data) | |
662428f4 | 562 | { |
7bd9bcf3 MH |
563 | struct strbuf real_pattern = STRBUF_INIT; |
564 | struct ref_filter filter; | |
565 | int ret; | |
d08bae7e | 566 | |
59556548 | 567 | if (!prefix && !starts_with(pattern, "refs/")) |
d08bae7e | 568 | strbuf_addstr(&real_pattern, "refs/"); |
b09fe971 IL |
569 | else if (prefix) |
570 | strbuf_addstr(&real_pattern, prefix); | |
d08bae7e IL |
571 | strbuf_addstr(&real_pattern, pattern); |
572 | ||
894a9d33 | 573 | if (!has_glob_specials(pattern)) { |
9517e6b8 | 574 | /* Append implied '/' '*' if not present. */ |
00b6c178 | 575 | strbuf_complete(&real_pattern, '/'); |
d08bae7e IL |
576 | /* No need to check for '*', there is none. */ |
577 | strbuf_addch(&real_pattern, '*'); | |
578 | } | |
579 | ||
580 | filter.pattern = real_pattern.buf; | |
9ab9b5df | 581 | filter.prefix = prefix; |
d08bae7e IL |
582 | filter.fn = fn; |
583 | filter.cb_data = cb_data; | |
584 | ret = for_each_ref(filter_refs, &filter); | |
585 | ||
586 | strbuf_release(&real_pattern); | |
587 | return ret; | |
588 | } | |
589 | ||
b09fe971 IL |
590 | int for_each_glob_ref(each_ref_fn fn, const char *pattern, void *cb_data) |
591 | { | |
592 | return for_each_glob_ref_in(fn, pattern, NULL, cb_data); | |
593 | } | |
594 | ||
4577e483 | 595 | const char *prettify_refname(const char *name) |
a9c37a72 | 596 | { |
3e5b36c6 SG |
597 | if (skip_prefix(name, "refs/heads/", &name) || |
598 | skip_prefix(name, "refs/tags/", &name) || | |
599 | skip_prefix(name, "refs/remotes/", &name)) | |
600 | ; /* nothing */ | |
601 | return name; | |
a9c37a72 DB |
602 | } |
603 | ||
54457fe5 | 604 | static const char *ref_rev_parse_rules[] = { |
79803322 SP |
605 | "%.*s", |
606 | "refs/%.*s", | |
607 | "refs/tags/%.*s", | |
608 | "refs/heads/%.*s", | |
609 | "refs/remotes/%.*s", | |
610 | "refs/remotes/%.*s/HEAD", | |
611 | NULL | |
612 | }; | |
613 | ||
60650a48 JH |
614 | #define NUM_REV_PARSE_RULES (ARRAY_SIZE(ref_rev_parse_rules) - 1) |
615 | ||
616 | /* | |
617 | * Is it possible that the caller meant full_name with abbrev_name? | |
618 | * If so return a non-zero value to signal "yes"; the magnitude of | |
619 | * the returned value gives the precedence used for disambiguation. | |
620 | * | |
621 | * If abbrev_name cannot mean full_name, return 0. | |
622 | */ | |
54457fe5 | 623 | int refname_match(const char *abbrev_name, const char *full_name) |
79803322 SP |
624 | { |
625 | const char **p; | |
626 | const int abbrev_name_len = strlen(abbrev_name); | |
60650a48 | 627 | const int num_rules = NUM_REV_PARSE_RULES; |
79803322 | 628 | |
60650a48 JH |
629 | for (p = ref_rev_parse_rules; *p; p++) |
630 | if (!strcmp(full_name, mkpath(*p, abbrev_name_len, abbrev_name))) | |
631 | return &ref_rev_parse_rules[num_rules] - p; | |
79803322 SP |
632 | |
633 | return 0; | |
634 | } | |
635 | ||
b4be7410 BW |
636 | /* |
637 | * Given a 'prefix' expand it by the rules in 'ref_rev_parse_rules' and add | |
638 | * the results to 'prefixes' | |
639 | */ | |
c972bf4c | 640 | void expand_ref_prefix(struct strvec *prefixes, const char *prefix) |
b4be7410 BW |
641 | { |
642 | const char **p; | |
643 | int len = strlen(prefix); | |
644 | ||
645 | for (p = ref_rev_parse_rules; *p; p++) | |
c972bf4c | 646 | strvec_pushf(prefixes, *p, len, prefix); |
b4be7410 BW |
647 | } |
648 | ||
675704c7 JS |
649 | static const char default_branch_name_advice[] = N_( |
650 | "Using '%s' as the name for the initial branch. This default branch name\n" | |
651 | "is subject to change. To configure the initial branch name to use in all\n" | |
652 | "of your new repositories, which will suppress this warning, call:\n" | |
653 | "\n" | |
654 | "\tgit config --global init.defaultBranch <name>\n" | |
655 | "\n" | |
656 | "Names commonly chosen instead of 'master' are 'main', 'trunk' and\n" | |
657 | "'development'. The just-created branch can be renamed via this command:\n" | |
658 | "\n" | |
659 | "\tgit branch -m <name>\n" | |
660 | ); | |
661 | ||
cc0f13c5 | 662 | char *repo_default_branch_name(struct repository *r, int quiet) |
8747ebb7 DGW |
663 | { |
664 | const char *config_key = "init.defaultbranch"; | |
665 | const char *config_display_key = "init.defaultBranch"; | |
666 | char *ret = NULL, *full_ref; | |
704fed9e | 667 | const char *env = getenv("GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME"); |
8747ebb7 | 668 | |
704fed9e JS |
669 | if (env && *env) |
670 | ret = xstrdup(env); | |
671 | else if (repo_config_get_string(r, config_key, &ret) < 0) | |
8747ebb7 DGW |
672 | die(_("could not retrieve `%s`"), config_display_key); |
673 | ||
675704c7 | 674 | if (!ret) { |
8747ebb7 | 675 | ret = xstrdup("master"); |
675704c7 JS |
676 | if (!quiet) |
677 | advise(_(default_branch_name_advice), ret); | |
678 | } | |
8747ebb7 DGW |
679 | |
680 | full_ref = xstrfmt("refs/heads/%s", ret); | |
681 | if (check_refname_format(full_ref, 0)) | |
682 | die(_("invalid branch name: %s = %s"), config_display_key, ret); | |
683 | free(full_ref); | |
684 | ||
685 | return ret; | |
686 | } | |
687 | ||
cc0f13c5 | 688 | const char *git_default_branch_name(int quiet) |
8747ebb7 DGW |
689 | { |
690 | static char *ret; | |
691 | ||
692 | if (!ret) | |
cc0f13c5 | 693 | ret = repo_default_branch_name(the_repository, quiet); |
8747ebb7 DGW |
694 | |
695 | return ret; | |
696 | } | |
697 | ||
ff74f7f1 JH |
698 | /* |
699 | * *string and *len will only be substituted, and *string returned (for | |
700 | * later free()ing) if the string passed in is a magic short-hand form | |
701 | * to name a branch. | |
702 | */ | |
8f56e9d4 | 703 | static char *substitute_branch_name(struct repository *r, |
f24c30e0 JT |
704 | const char **string, int *len, |
705 | int nonfatal_dangling_mark) | |
ff74f7f1 JH |
706 | { |
707 | struct strbuf buf = STRBUF_INIT; | |
f24c30e0 JT |
708 | struct interpret_branch_name_options options = { |
709 | .nonfatal_dangling_mark = nonfatal_dangling_mark | |
710 | }; | |
a4f66a78 | 711 | int ret = repo_interpret_branch_name(r, *string, *len, &buf, &options); |
ff74f7f1 JH |
712 | |
713 | if (ret == *len) { | |
714 | size_t size; | |
715 | *string = strbuf_detach(&buf, &size); | |
716 | *len = size; | |
717 | return (char *)*string; | |
718 | } | |
719 | ||
720 | return NULL; | |
721 | } | |
722 | ||
d8984c53 | 723 | int repo_dwim_ref(struct repository *r, const char *str, int len, |
f24c30e0 | 724 | struct object_id *oid, char **ref, int nonfatal_dangling_mark) |
ff74f7f1 | 725 | { |
f24c30e0 JT |
726 | char *last_branch = substitute_branch_name(r, &str, &len, |
727 | nonfatal_dangling_mark); | |
d8984c53 | 728 | int refs_found = expand_ref(r, str, len, oid, ref); |
41da7111 NTND |
729 | free(last_branch); |
730 | return refs_found; | |
731 | } | |
732 | ||
0b1dbf53 NTND |
733 | int expand_ref(struct repository *repo, const char *str, int len, |
734 | struct object_id *oid, char **ref) | |
41da7111 | 735 | { |
ff74f7f1 JH |
736 | const char **p, *r; |
737 | int refs_found = 0; | |
6cd4a898 | 738 | struct strbuf fullref = STRBUF_INIT; |
ff74f7f1 JH |
739 | |
740 | *ref = NULL; | |
741 | for (p = ref_rev_parse_rules; *p; p++) { | |
cca5fa64 | 742 | struct object_id oid_from_ref; |
743 | struct object_id *this_result; | |
ff74f7f1 | 744 | int flag; |
6582bd31 | 745 | struct ref_store *refs = get_main_ref_store(repo); |
ff74f7f1 | 746 | |
cca5fa64 | 747 | this_result = refs_found ? &oid_from_ref : oid; |
6cd4a898 JK |
748 | strbuf_reset(&fullref); |
749 | strbuf_addf(&fullref, *p, len, str); | |
f1da24ca | 750 | r = refs_resolve_ref_unsafe(refs, fullref.buf, |
6582bd31 | 751 | RESOLVE_REF_READING, |
ce14de03 | 752 | this_result, &flag); |
ff74f7f1 JH |
753 | if (r) { |
754 | if (!refs_found++) | |
755 | *ref = xstrdup(r); | |
756 | if (!warn_ambiguous_refs) | |
757 | break; | |
6cd4a898 | 758 | } else if ((flag & REF_ISSYMREF) && strcmp(fullref.buf, "HEAD")) { |
661558f0 | 759 | warning(_("ignoring dangling symref %s"), fullref.buf); |
6cd4a898 | 760 | } else if ((flag & REF_ISBROKEN) && strchr(fullref.buf, '/')) { |
661558f0 | 761 | warning(_("ignoring broken ref %s"), fullref.buf); |
55956350 | 762 | } |
ff74f7f1 | 763 | } |
6cd4a898 | 764 | strbuf_release(&fullref); |
ff74f7f1 JH |
765 | return refs_found; |
766 | } | |
767 | ||
56700903 NTND |
768 | int repo_dwim_log(struct repository *r, const char *str, int len, |
769 | struct object_id *oid, char **log) | |
ff74f7f1 | 770 | { |
56700903 | 771 | struct ref_store *refs = get_main_ref_store(r); |
f24c30e0 | 772 | char *last_branch = substitute_branch_name(r, &str, &len, 0); |
ff74f7f1 JH |
773 | const char **p; |
774 | int logs_found = 0; | |
6cd4a898 | 775 | struct strbuf path = STRBUF_INIT; |
ff74f7f1 JH |
776 | |
777 | *log = NULL; | |
778 | for (p = ref_rev_parse_rules; *p; p++) { | |
334dc52f | 779 | struct object_id hash; |
ff74f7f1 JH |
780 | const char *ref, *it; |
781 | ||
6cd4a898 JK |
782 | strbuf_reset(&path); |
783 | strbuf_addf(&path, *p, len, str); | |
56700903 NTND |
784 | ref = refs_resolve_ref_unsafe(refs, path.buf, |
785 | RESOLVE_REF_READING, | |
ce14de03 | 786 | oid ? &hash : NULL, NULL); |
ff74f7f1 JH |
787 | if (!ref) |
788 | continue; | |
56700903 | 789 | if (refs_reflog_exists(refs, path.buf)) |
6cd4a898 | 790 | it = path.buf; |
56700903 NTND |
791 | else if (strcmp(ref, path.buf) && |
792 | refs_reflog_exists(refs, ref)) | |
ff74f7f1 JH |
793 | it = ref; |
794 | else | |
795 | continue; | |
796 | if (!logs_found++) { | |
797 | *log = xstrdup(it); | |
6f45ec88 ÆAB |
798 | if (oid) |
799 | oidcpy(oid, &hash); | |
ff74f7f1 | 800 | } |
7bd9bcf3 MH |
801 | if (!warn_ambiguous_refs) |
802 | break; | |
c0277d15 | 803 | } |
6cd4a898 | 804 | strbuf_release(&path); |
7bd9bcf3 MH |
805 | free(last_branch); |
806 | return logs_found; | |
2ddb5d17 BK |
807 | } |
808 | ||
56700903 NTND |
809 | int dwim_log(const char *str, int len, struct object_id *oid, char **log) |
810 | { | |
811 | return repo_dwim_log(the_repository, str, len, oid, log); | |
812 | } | |
813 | ||
71e54734 | 814 | int is_per_worktree_ref(const char *refname) |
266b1827 | 815 | { |
55dd8b91 HWN |
816 | return starts_with(refname, "refs/worktree/") || |
817 | starts_with(refname, "refs/bisect/") || | |
818 | starts_with(refname, "refs/rewritten/"); | |
266b1827 DT |
819 | } |
820 | ||
821 | static int is_pseudoref_syntax(const char *refname) | |
822 | { | |
823 | const char *c; | |
824 | ||
825 | for (c = refname; *c; c++) { | |
826 | if (!isupper(*c) && *c != '-' && *c != '_') | |
827 | return 0; | |
828 | } | |
829 | ||
71e54734 HWN |
830 | /* |
831 | * HEAD is not a pseudoref, but it certainly uses the | |
832 | * pseudoref syntax. | |
833 | */ | |
266b1827 DT |
834 | return 1; |
835 | } | |
836 | ||
71e54734 HWN |
837 | static int is_current_worktree_ref(const char *ref) { |
838 | return is_pseudoref_syntax(ref) || is_per_worktree_ref(ref); | |
3a3b9d8c NTND |
839 | } |
840 | ||
71e54734 HWN |
841 | enum ref_worktree_type parse_worktree_ref(const char *maybe_worktree_ref, |
842 | const char **worktree_name, int *worktree_name_length, | |
843 | const char **bare_refname) | |
3a3b9d8c | 844 | { |
71e54734 HWN |
845 | const char *name_dummy; |
846 | int name_length_dummy; | |
847 | const char *ref_dummy; | |
3a3b9d8c | 848 | |
71e54734 HWN |
849 | if (!worktree_name) |
850 | worktree_name = &name_dummy; | |
851 | if (!worktree_name_length) | |
852 | worktree_name_length = &name_length_dummy; | |
853 | if (!bare_refname) | |
854 | bare_refname = &ref_dummy; | |
855 | ||
856 | if (skip_prefix(maybe_worktree_ref, "worktrees/", bare_refname)) { | |
857 | const char *slash = strchr(*bare_refname, '/'); | |
858 | ||
859 | *worktree_name = *bare_refname; | |
860 | if (!slash) { | |
861 | *worktree_name_length = strlen(*worktree_name); | |
862 | ||
863 | /* This is an error condition, and the caller tell because the bare_refname is "" */ | |
864 | *bare_refname = *worktree_name + *worktree_name_length; | |
865 | return REF_WORKTREE_OTHER; | |
866 | } | |
867 | ||
868 | *worktree_name_length = slash - *bare_refname; | |
869 | *bare_refname = slash + 1; | |
870 | ||
871 | if (is_current_worktree_ref(*bare_refname)) | |
872 | return REF_WORKTREE_OTHER; | |
873 | } | |
874 | ||
875 | *worktree_name = NULL; | |
876 | *worktree_name_length = 0; | |
877 | ||
878 | if (skip_prefix(maybe_worktree_ref, "main-worktree/", bare_refname) | |
879 | && is_current_worktree_ref(*bare_refname)) | |
880 | return REF_WORKTREE_MAIN; | |
881 | ||
882 | *bare_refname = maybe_worktree_ref; | |
883 | if (is_current_worktree_ref(maybe_worktree_ref)) | |
884 | return REF_WORKTREE_CURRENT; | |
885 | ||
886 | return REF_WORKTREE_SHARED; | |
266b1827 DT |
887 | } |
888 | ||
4ff0f01c MH |
889 | long get_files_ref_lock_timeout_ms(void) |
890 | { | |
891 | static int configured = 0; | |
892 | ||
893 | /* The default timeout is 100 ms: */ | |
894 | static int timeout_ms = 100; | |
895 | ||
896 | if (!configured) { | |
897 | git_config_get_int("core.filesreflocktimeout", &timeout_ms); | |
898 | configured = 1; | |
899 | } | |
900 | ||
901 | return timeout_ms; | |
902 | } | |
903 | ||
c0fe4e8b NTND |
904 | int refs_delete_ref(struct ref_store *refs, const char *msg, |
905 | const char *refname, | |
2616a5e5 | 906 | const struct object_id *old_oid, |
c0fe4e8b | 907 | unsigned int flags) |
41b625b0 | 908 | { |
7521cc46 | 909 | struct ref_transaction *transaction; |
a4c653df | 910 | struct strbuf err = STRBUF_INIT; |
8b5157e4 | 911 | |
c6da34a6 | 912 | transaction = ref_store_transaction_begin(refs, &err); |
7521cc46 | 913 | if (!transaction || |
89f3bbdd | 914 | ref_transaction_delete(transaction, refname, old_oid, |
755b49ae | 915 | flags, msg, &err) || |
db7516ab | 916 | ref_transaction_commit(transaction, &err)) { |
7521cc46 RS |
917 | error("%s", err.buf); |
918 | ref_transaction_free(transaction); | |
919 | strbuf_release(&err); | |
c0277d15 | 920 | return 1; |
41b625b0 | 921 | } |
7bd9bcf3 MH |
922 | ref_transaction_free(transaction); |
923 | strbuf_release(&err); | |
b531394d BC |
924 | return 0; |
925 | } | |
41b625b0 | 926 | |
c0fe4e8b | 927 | int delete_ref(const char *msg, const char *refname, |
2616a5e5 | 928 | const struct object_id *old_oid, unsigned int flags) |
c0fe4e8b | 929 | { |
23a3f0cb | 930 | return refs_delete_ref(get_main_ref_store(the_repository), msg, refname, |
2616a5e5 | 931 | old_oid, flags); |
c0fe4e8b NTND |
932 | } |
933 | ||
523fa69c | 934 | static void copy_reflog_msg(struct strbuf *sb, const char *msg) |
0ec29a47 | 935 | { |
0ec29a47 JH |
936 | char c; |
937 | int wasspace = 1; | |
8b5157e4 | 938 | |
0ec29a47 JH |
939 | while ((c = *msg++)) { |
940 | if (wasspace && isspace(c)) | |
941 | continue; | |
942 | wasspace = isspace(c); | |
943 | if (wasspace) | |
944 | c = ' '; | |
80a6c207 | 945 | strbuf_addch(sb, c); |
a4c653df | 946 | } |
80a6c207 | 947 | strbuf_rtrim(sb); |
0ec29a47 | 948 | } |
8b5157e4 | 949 | |
523fa69c JH |
950 | static char *normalize_reflog_message(const char *msg) |
951 | { | |
952 | struct strbuf sb = STRBUF_INIT; | |
953 | ||
954 | if (msg && *msg) | |
955 | copy_reflog_msg(&sb, msg); | |
956 | return strbuf_detach(&sb, NULL); | |
957 | } | |
958 | ||
4cb77009 | 959 | int should_autocreate_reflog(const char *refname) |
4e2bef57 | 960 | { |
341fb286 CW |
961 | switch (log_all_ref_updates) { |
962 | case LOG_REFS_ALWAYS: | |
963 | return 1; | |
964 | case LOG_REFS_NORMAL: | |
965 | return starts_with(refname, "refs/heads/") || | |
966 | starts_with(refname, "refs/remotes/") || | |
967 | starts_with(refname, "refs/notes/") || | |
968 | !strcmp(refname, "HEAD"); | |
969 | default: | |
4e2bef57 | 970 | return 0; |
341fb286 | 971 | } |
4e2bef57 DT |
972 | } |
973 | ||
e7e0f26e | 974 | int is_branch(const char *refname) |
c3b0dec5 | 975 | { |
59556548 | 976 | return !strcmp(refname, "HEAD") || starts_with(refname, "refs/heads/"); |
41b625b0 NP |
977 | } |
978 | ||
4207ed28 RS |
979 | struct read_ref_at_cb { |
980 | const char *refname; | |
dddbad72 | 981 | timestamp_t at_time; |
4207ed28 RS |
982 | int cnt; |
983 | int reccnt; | |
8eb36d94 | 984 | struct object_id *oid; |
4207ed28 RS |
985 | int found_it; |
986 | ||
8eb36d94 | 987 | struct object_id ooid; |
988 | struct object_id noid; | |
4207ed28 | 989 | int tz; |
dddbad72 | 990 | timestamp_t date; |
4207ed28 | 991 | char **msg; |
dddbad72 | 992 | timestamp_t *cutoff_time; |
4207ed28 RS |
993 | int *cutoff_tz; |
994 | int *cutoff_cnt; | |
995 | }; | |
996 | ||
95c2a718 DL |
997 | static void set_read_ref_cutoffs(struct read_ref_at_cb *cb, |
998 | timestamp_t timestamp, int tz, const char *message) | |
999 | { | |
1000 | if (cb->msg) | |
1001 | *cb->msg = xstrdup(message); | |
1002 | if (cb->cutoff_time) | |
1003 | *cb->cutoff_time = timestamp; | |
1004 | if (cb->cutoff_tz) | |
1005 | *cb->cutoff_tz = tz; | |
1006 | if (cb->cutoff_cnt) | |
1007 | *cb->cutoff_cnt = cb->reccnt; | |
1008 | } | |
1009 | ||
9461d272 | 1010 | static int read_ref_at_ent(struct object_id *ooid, struct object_id *noid, |
5cf88fd8 | 1011 | const char *email UNUSED, |
c006e9fa JK |
1012 | timestamp_t timestamp, int tz, |
1013 | const char *message, void *cb_data) | |
4207ed28 RS |
1014 | { |
1015 | struct read_ref_at_cb *cb = cb_data; | |
6436a202 | 1016 | int reached_count; |
4207ed28 | 1017 | |
4207ed28 RS |
1018 | cb->tz = tz; |
1019 | cb->date = timestamp; | |
1020 | ||
6436a202 DL |
1021 | /* |
1022 | * It is not possible for cb->cnt == 0 on the first iteration because | |
1023 | * that special case is handled in read_ref_at(). | |
1024 | */ | |
1025 | if (cb->cnt > 0) | |
1026 | cb->cnt--; | |
1027 | reached_count = cb->cnt == 0 && !is_null_oid(ooid); | |
1028 | if (timestamp <= cb->at_time || reached_count) { | |
95c2a718 | 1029 | set_read_ref_cutoffs(cb, timestamp, tz, message); |
4207ed28 | 1030 | /* |
78fb4579 | 1031 | * we have not yet updated cb->[n|o]oid so they still |
4207ed28 RS |
1032 | * hold the values for the previous record. |
1033 | */ | |
6436a202 DL |
1034 | if (!is_null_oid(&cb->ooid) && !oideq(&cb->ooid, noid)) |
1035 | warning(_("log for ref %s has gap after %s"), | |
a5481a6c | 1036 | cb->refname, show_date(cb->date, cb->tz, DATE_MODE(RFC2822))); |
6436a202 DL |
1037 | if (reached_count) |
1038 | oidcpy(cb->oid, ooid); | |
1039 | else if (!is_null_oid(&cb->ooid) || cb->date == cb->at_time) | |
8eb36d94 | 1040 | oidcpy(cb->oid, noid); |
9001dc2a | 1041 | else if (!oideq(noid, cb->oid)) |
661558f0 | 1042 | warning(_("log for ref %s unexpectedly ended on %s"), |
4207ed28 | 1043 | cb->refname, show_date(cb->date, cb->tz, |
a5481a6c | 1044 | DATE_MODE(RFC2822))); |
4207ed28 | 1045 | cb->found_it = 1; |
4207ed28 | 1046 | } |
95c2a718 | 1047 | cb->reccnt++; |
8eb36d94 | 1048 | oidcpy(&cb->ooid, ooid); |
1049 | oidcpy(&cb->noid, noid); | |
6436a202 DL |
1050 | return cb->found_it; |
1051 | } | |
1052 | ||
5cf88fd8 | 1053 | static int read_ref_at_ent_newest(struct object_id *ooid UNUSED, |
63e14ee2 | 1054 | struct object_id *noid, |
5cf88fd8 | 1055 | const char *email UNUSED, |
63e14ee2 JK |
1056 | timestamp_t timestamp, int tz, |
1057 | const char *message, void *cb_data) | |
6436a202 DL |
1058 | { |
1059 | struct read_ref_at_cb *cb = cb_data; | |
1060 | ||
1061 | set_read_ref_cutoffs(cb, timestamp, tz, message); | |
1062 | oidcpy(cb->oid, noid); | |
1063 | /* We just want the first entry */ | |
1064 | return 1; | |
4207ed28 RS |
1065 | } |
1066 | ||
9461d272 | 1067 | static int read_ref_at_ent_oldest(struct object_id *ooid, struct object_id *noid, |
5cf88fd8 | 1068 | const char *email UNUSED, |
c006e9fa JK |
1069 | timestamp_t timestamp, int tz, |
1070 | const char *message, void *cb_data) | |
4207ed28 RS |
1071 | { |
1072 | struct read_ref_at_cb *cb = cb_data; | |
1073 | ||
95c2a718 | 1074 | set_read_ref_cutoffs(cb, timestamp, tz, message); |
8eb36d94 | 1075 | oidcpy(cb->oid, ooid); |
1076 | if (is_null_oid(cb->oid)) | |
1077 | oidcpy(cb->oid, noid); | |
4207ed28 RS |
1078 | /* We just want the first entry */ |
1079 | return 1; | |
16d7cc90 JH |
1080 | } |
1081 | ||
7fdff474 NTND |
1082 | int read_ref_at(struct ref_store *refs, const char *refname, |
1083 | unsigned int flags, timestamp_t at_time, int cnt, | |
8eb36d94 | 1084 | struct object_id *oid, char **msg, |
dddbad72 | 1085 | timestamp_t *cutoff_time, int *cutoff_tz, int *cutoff_cnt) |
d556fae2 | 1086 | { |
4207ed28 | 1087 | struct read_ref_at_cb cb; |
d556fae2 | 1088 | |
4207ed28 RS |
1089 | memset(&cb, 0, sizeof(cb)); |
1090 | cb.refname = refname; | |
1091 | cb.at_time = at_time; | |
1092 | cb.cnt = cnt; | |
1093 | cb.msg = msg; | |
1094 | cb.cutoff_time = cutoff_time; | |
1095 | cb.cutoff_tz = cutoff_tz; | |
1096 | cb.cutoff_cnt = cutoff_cnt; | |
8eb36d94 | 1097 | cb.oid = oid; |
4207ed28 | 1098 | |
6436a202 DL |
1099 | if (cb.cnt == 0) { |
1100 | refs_for_each_reflog_ent_reverse(refs, refname, read_ref_at_ent_newest, &cb); | |
1101 | return 0; | |
1102 | } | |
1103 | ||
7fdff474 | 1104 | refs_for_each_reflog_ent_reverse(refs, refname, read_ref_at_ent, &cb); |
4207ed28 | 1105 | |
c41a87dd | 1106 | if (!cb.reccnt) { |
321c89bf | 1107 | if (flags & GET_OID_QUIETLY) |
c41a87dd DA |
1108 | exit(128); |
1109 | else | |
661558f0 | 1110 | die(_("log for %s is empty"), refname); |
c41a87dd | 1111 | } |
4207ed28 RS |
1112 | if (cb.found_it) |
1113 | return 0; | |
1114 | ||
7fdff474 | 1115 | refs_for_each_reflog_ent(refs, refname, read_ref_at_ent_oldest, &cb); |
d556fae2 | 1116 | |
16d7cc90 | 1117 | return 1; |
d556fae2 | 1118 | } |
2ff81662 | 1119 | |
c0fe4e8b NTND |
1120 | struct ref_transaction *ref_store_transaction_begin(struct ref_store *refs, |
1121 | struct strbuf *err) | |
caa4046c | 1122 | { |
c0fe4e8b | 1123 | struct ref_transaction *tr; |
5a603b04 JN |
1124 | assert(err); |
1125 | ||
ca56dadb | 1126 | CALLOC_ARRAY(tr, 1); |
c0fe4e8b NTND |
1127 | tr->ref_store = refs; |
1128 | return tr; | |
1129 | } | |
1130 | ||
1131 | struct ref_transaction *ref_transaction_begin(struct strbuf *err) | |
1132 | { | |
c6da34a6 | 1133 | return ref_store_transaction_begin(get_main_ref_store(the_repository), err); |
caa4046c MH |
1134 | } |
1135 | ||
026bd1d3 | 1136 | void ref_transaction_free(struct ref_transaction *transaction) |
caa4046c | 1137 | { |
43a2dfde | 1138 | size_t i; |
caa4046c | 1139 | |
1b07255c RS |
1140 | if (!transaction) |
1141 | return; | |
1142 | ||
30173b88 MH |
1143 | switch (transaction->state) { |
1144 | case REF_TRANSACTION_OPEN: | |
1145 | case REF_TRANSACTION_CLOSED: | |
1146 | /* OK */ | |
1147 | break; | |
1148 | case REF_TRANSACTION_PREPARED: | |
033abf97 | 1149 | BUG("free called on a prepared reference transaction"); |
30173b88 MH |
1150 | break; |
1151 | default: | |
033abf97 | 1152 | BUG("unexpected reference transaction state"); |
30173b88 MH |
1153 | break; |
1154 | } | |
1155 | ||
db7516ab RS |
1156 | for (i = 0; i < transaction->nr; i++) { |
1157 | free(transaction->updates[i]->msg); | |
88615910 | 1158 | free(transaction->updates[i]); |
db7516ab | 1159 | } |
caa4046c MH |
1160 | free(transaction->updates); |
1161 | free(transaction); | |
1162 | } | |
1163 | ||
71564516 MH |
1164 | struct ref_update *ref_transaction_add_update( |
1165 | struct ref_transaction *transaction, | |
1166 | const char *refname, unsigned int flags, | |
89f3bbdd | 1167 | const struct object_id *new_oid, |
1168 | const struct object_id *old_oid, | |
71564516 | 1169 | const char *msg) |
caa4046c | 1170 | { |
96ffc06f | 1171 | struct ref_update *update; |
71564516 MH |
1172 | |
1173 | if (transaction->state != REF_TRANSACTION_OPEN) | |
033abf97 | 1174 | BUG("update called for transaction that is not open"); |
71564516 | 1175 | |
96ffc06f | 1176 | FLEX_ALLOC_STR(update, refname, refname); |
caa4046c MH |
1177 | ALLOC_GROW(transaction->updates, transaction->nr + 1, transaction->alloc); |
1178 | transaction->updates[transaction->nr++] = update; | |
71564516 MH |
1179 | |
1180 | update->flags = flags; | |
1181 | ||
1182 | if (flags & REF_HAVE_NEW) | |
89f3bbdd | 1183 | oidcpy(&update->new_oid, new_oid); |
71564516 | 1184 | if (flags & REF_HAVE_OLD) |
89f3bbdd | 1185 | oidcpy(&update->old_oid, old_oid); |
523fa69c | 1186 | update->msg = normalize_reflog_message(msg); |
caa4046c MH |
1187 | return update; |
1188 | } | |
1189 | ||
8e34800e RS |
1190 | int ref_transaction_update(struct ref_transaction *transaction, |
1191 | const char *refname, | |
89f3bbdd | 1192 | const struct object_id *new_oid, |
1193 | const struct object_id *old_oid, | |
1d147bdf | 1194 | unsigned int flags, const char *msg, |
8e34800e | 1195 | struct strbuf *err) |
caa4046c | 1196 | { |
5a603b04 JN |
1197 | assert(err); |
1198 | ||
3c966c7b HWN |
1199 | if (!(flags & REF_SKIP_REFNAME_VERIFICATION) && |
1200 | ((new_oid && !is_null_oid(new_oid)) ? | |
1201 | check_refname_format(refname, REFNAME_ALLOW_ONELEVEL) : | |
1202 | !refname_is_safe(refname))) { | |
661558f0 | 1203 | strbuf_addf(err, _("refusing to update ref with bad name '%s'"), |
d0f810f0 RS |
1204 | refname); |
1205 | return -1; | |
1206 | } | |
1207 | ||
a9bbbcec MH |
1208 | if (flags & ~REF_TRANSACTION_UPDATE_ALLOWED_FLAGS) |
1209 | BUG("illegal flags 0x%x passed to ref_transaction_update()", flags); | |
c788c54c | 1210 | |
49f1eb3b JK |
1211 | /* |
1212 | * Clear flags outside the allowed set; this should be a noop because | |
1213 | * of the BUG() check above, but it works around a -Wnonnull warning | |
1214 | * with some versions of "gcc -O3". | |
1215 | */ | |
1216 | flags &= REF_TRANSACTION_UPDATE_ALLOWED_FLAGS; | |
1217 | ||
89f3bbdd | 1218 | flags |= (new_oid ? REF_HAVE_NEW : 0) | (old_oid ? REF_HAVE_OLD : 0); |
71564516 MH |
1219 | |
1220 | ref_transaction_add_update(transaction, refname, flags, | |
89f3bbdd | 1221 | new_oid, old_oid, msg); |
8e34800e | 1222 | return 0; |
caa4046c MH |
1223 | } |
1224 | ||
b416af5b RS |
1225 | int ref_transaction_create(struct ref_transaction *transaction, |
1226 | const char *refname, | |
89f3bbdd | 1227 | const struct object_id *new_oid, |
fec14ec3 | 1228 | unsigned int flags, const char *msg, |
b416af5b | 1229 | struct strbuf *err) |
caa4046c | 1230 | { |
d097a23b DS |
1231 | if (!new_oid || is_null_oid(new_oid)) { |
1232 | strbuf_addf(err, "'%s' has a null OID", refname); | |
1233 | return 1; | |
1234 | } | |
89f3bbdd | 1235 | return ref_transaction_update(transaction, refname, new_oid, |
14228447 | 1236 | null_oid(), flags, msg, err); |
caa4046c MH |
1237 | } |
1238 | ||
8c8bdc0d RS |
1239 | int ref_transaction_delete(struct ref_transaction *transaction, |
1240 | const char *refname, | |
89f3bbdd | 1241 | const struct object_id *old_oid, |
fb5a6bb6 | 1242 | unsigned int flags, const char *msg, |
8c8bdc0d | 1243 | struct strbuf *err) |
caa4046c | 1244 | { |
89f3bbdd | 1245 | if (old_oid && is_null_oid(old_oid)) |
033abf97 | 1246 | BUG("delete called with old_oid set to zeros"); |
1d147bdf | 1247 | return ref_transaction_update(transaction, refname, |
14228447 | 1248 | null_oid(), old_oid, |
1d147bdf | 1249 | flags, msg, err); |
caa4046c MH |
1250 | } |
1251 | ||
16180334 MH |
1252 | int ref_transaction_verify(struct ref_transaction *transaction, |
1253 | const char *refname, | |
89f3bbdd | 1254 | const struct object_id *old_oid, |
16180334 MH |
1255 | unsigned int flags, |
1256 | struct strbuf *err) | |
1257 | { | |
89f3bbdd | 1258 | if (!old_oid) |
033abf97 | 1259 | BUG("verify called with old_oid set to NULL"); |
16180334 | 1260 | return ref_transaction_update(transaction, refname, |
89f3bbdd | 1261 | NULL, old_oid, |
16180334 MH |
1262 | flags, NULL, err); |
1263 | } | |
1264 | ||
c0fe4e8b | 1265 | int refs_update_ref(struct ref_store *refs, const char *msg, |
ae077771 | 1266 | const char *refname, const struct object_id *new_oid, |
1267 | const struct object_id *old_oid, unsigned int flags, | |
c0fe4e8b | 1268 | enum action_on_err onerr) |
4738a333 | 1269 | { |
74ec19d4 | 1270 | struct ref_transaction *t = NULL; |
b4d75ac1 | 1271 | struct strbuf err = STRBUF_INIT; |
74ec19d4 | 1272 | int ret = 0; |
b4d75ac1 | 1273 | |
c6da34a6 | 1274 | t = ref_store_transaction_begin(refs, &err); |
09743417 HWN |
1275 | if (!t || |
1276 | ref_transaction_update(t, refname, new_oid, old_oid, flags, msg, | |
1277 | &err) || | |
1278 | ref_transaction_commit(t, &err)) { | |
1279 | ret = 1; | |
1280 | ref_transaction_free(t); | |
74ec19d4 DT |
1281 | } |
1282 | if (ret) { | |
661558f0 | 1283 | const char *str = _("update_ref failed for ref '%s': %s"); |
b4d75ac1 | 1284 | |
b4d75ac1 RS |
1285 | switch (onerr) { |
1286 | case UPDATE_REFS_MSG_ON_ERR: | |
1287 | error(str, refname, err.buf); | |
1288 | break; | |
1289 | case UPDATE_REFS_DIE_ON_ERR: | |
1290 | die(str, refname, err.buf); | |
1291 | break; | |
1292 | case UPDATE_REFS_QUIET_ON_ERR: | |
1293 | break; | |
1294 | } | |
1295 | strbuf_release(&err); | |
4738a333 | 1296 | return 1; |
b4d75ac1 RS |
1297 | } |
1298 | strbuf_release(&err); | |
74ec19d4 DT |
1299 | if (t) |
1300 | ref_transaction_free(t); | |
b4d75ac1 | 1301 | return 0; |
4738a333 BK |
1302 | } |
1303 | ||
c0fe4e8b | 1304 | int update_ref(const char *msg, const char *refname, |
ae077771 | 1305 | const struct object_id *new_oid, |
1306 | const struct object_id *old_oid, | |
c0fe4e8b NTND |
1307 | unsigned int flags, enum action_on_err onerr) |
1308 | { | |
23a3f0cb | 1309 | return refs_update_ref(get_main_ref_store(the_repository), msg, refname, new_oid, |
ae077771 | 1310 | old_oid, flags, onerr); |
c0fe4e8b NTND |
1311 | } |
1312 | ||
546edf37 NTND |
1313 | char *refs_shorten_unambiguous_ref(struct ref_store *refs, |
1314 | const char *refname, int strict) | |
7c2b3029 JK |
1315 | { |
1316 | int i; | |
1317 | static char **scanf_fmts; | |
1318 | static int nr_rules; | |
1319 | char *short_name; | |
6cd4a898 | 1320 | struct strbuf resolved_buf = STRBUF_INIT; |
7c2b3029 | 1321 | |
7c2b3029 | 1322 | if (!nr_rules) { |
4346663a MH |
1323 | /* |
1324 | * Pre-generate scanf formats from ref_rev_parse_rules[]. | |
1325 | * Generate a format suitable for scanf from a | |
1326 | * ref_rev_parse_rules rule by interpolating "%s" at the | |
1327 | * location of the "%.*s". | |
1328 | */ | |
7c2b3029 | 1329 | size_t total_len = 0; |
84d5633f | 1330 | size_t offset = 0; |
7c2b3029 JK |
1331 | |
1332 | /* the rule list is NULL terminated, count them first */ | |
a4165851 | 1333 | for (nr_rules = 0; ref_rev_parse_rules[nr_rules]; nr_rules++) |
7902fe03 MH |
1334 | /* -2 for strlen("%.*s") - strlen("%s"); +1 for NUL */ |
1335 | total_len += strlen(ref_rev_parse_rules[nr_rules]) - 2 + 1; | |
7c2b3029 | 1336 | |
50492f7b | 1337 | scanf_fmts = xmalloc(st_add(st_mult(sizeof(char *), nr_rules), total_len)); |
7c2b3029 | 1338 | |
84d5633f | 1339 | offset = 0; |
7c2b3029 | 1340 | for (i = 0; i < nr_rules; i++) { |
4346663a | 1341 | assert(offset < total_len); |
84d5633f | 1342 | scanf_fmts[i] = (char *)&scanf_fmts[nr_rules] + offset; |
bf4baf1f JK |
1343 | offset += xsnprintf(scanf_fmts[i], total_len - offset, |
1344 | ref_rev_parse_rules[i], 2, "%s") + 1; | |
7c2b3029 JK |
1345 | } |
1346 | } | |
1347 | ||
1348 | /* bail out if there are no rules */ | |
1349 | if (!nr_rules) | |
dfefa935 | 1350 | return xstrdup(refname); |
7c2b3029 | 1351 | |
dfefa935 MH |
1352 | /* buffer for scanf result, at most refname must fit */ |
1353 | short_name = xstrdup(refname); | |
7c2b3029 JK |
1354 | |
1355 | /* skip first rule, it will always match */ | |
1356 | for (i = nr_rules - 1; i > 0 ; --i) { | |
1357 | int j; | |
6e7b3309 | 1358 | int rules_to_fail = i; |
7c2b3029 JK |
1359 | int short_name_len; |
1360 | ||
dfefa935 | 1361 | if (1 != sscanf(refname, scanf_fmts[i], short_name)) |
7c2b3029 JK |
1362 | continue; |
1363 | ||
1364 | short_name_len = strlen(short_name); | |
1365 | ||
6e7b3309 BW |
1366 | /* |
1367 | * in strict mode, all (except the matched one) rules | |
1368 | * must fail to resolve to a valid non-ambiguous ref | |
1369 | */ | |
1370 | if (strict) | |
1371 | rules_to_fail = nr_rules; | |
1372 | ||
7c2b3029 JK |
1373 | /* |
1374 | * check if the short name resolves to a valid ref, | |
1375 | * but use only rules prior to the matched one | |
1376 | */ | |
6e7b3309 | 1377 | for (j = 0; j < rules_to_fail; j++) { |
7c2b3029 | 1378 | const char *rule = ref_rev_parse_rules[j]; |
7c2b3029 | 1379 | |
6e7b3309 BW |
1380 | /* skip matched rule */ |
1381 | if (i == j) | |
1382 | continue; | |
1383 | ||
7c2b3029 JK |
1384 | /* |
1385 | * the short name is ambiguous, if it resolves | |
1386 | * (with this previous rule) to a valid ref | |
1387 | * read_ref() returns 0 on success | |
1388 | */ | |
6cd4a898 JK |
1389 | strbuf_reset(&resolved_buf); |
1390 | strbuf_addf(&resolved_buf, rule, | |
1391 | short_name_len, short_name); | |
546edf37 | 1392 | if (refs_ref_exists(refs, resolved_buf.buf)) |
7c2b3029 JK |
1393 | break; |
1394 | } | |
1395 | ||
1396 | /* | |
1397 | * short name is non-ambiguous if all previous rules | |
1398 | * haven't resolved to a valid ref | |
1399 | */ | |
6cd4a898 JK |
1400 | if (j == rules_to_fail) { |
1401 | strbuf_release(&resolved_buf); | |
7c2b3029 | 1402 | return short_name; |
6cd4a898 | 1403 | } |
7c2b3029 JK |
1404 | } |
1405 | ||
6cd4a898 | 1406 | strbuf_release(&resolved_buf); |
7c2b3029 | 1407 | free(short_name); |
dfefa935 | 1408 | return xstrdup(refname); |
7c2b3029 | 1409 | } |
daebaa78 | 1410 | |
546edf37 NTND |
1411 | char *shorten_unambiguous_ref(const char *refname, int strict) |
1412 | { | |
1413 | return refs_shorten_unambiguous_ref(get_main_ref_store(the_repository), | |
1414 | refname, strict); | |
1415 | } | |
1416 | ||
daebaa78 JH |
1417 | static struct string_list *hide_refs; |
1418 | ||
1419 | int parse_hide_refs_config(const char *var, const char *value, const char *section) | |
1420 | { | |
ad8c7cda | 1421 | const char *key; |
daebaa78 | 1422 | if (!strcmp("transfer.hiderefs", var) || |
ad8c7cda JK |
1423 | (!parse_config_key(var, section, NULL, NULL, &key) && |
1424 | !strcmp(key, "hiderefs"))) { | |
daebaa78 JH |
1425 | char *ref; |
1426 | int len; | |
1427 | ||
1428 | if (!value) | |
1429 | return config_error_nonbool(var); | |
1430 | ref = xstrdup(value); | |
1431 | len = strlen(ref); | |
1432 | while (len && ref[len - 1] == '/') | |
1433 | ref[--len] = '\0'; | |
1434 | if (!hide_refs) { | |
ca56dadb | 1435 | CALLOC_ARRAY(hide_refs, 1); |
daebaa78 JH |
1436 | hide_refs->strdup_strings = 1; |
1437 | } | |
1438 | string_list_append(hide_refs, ref); | |
1439 | } | |
1440 | return 0; | |
1441 | } | |
1442 | ||
78a766ab | 1443 | int ref_is_hidden(const char *refname, const char *refname_full) |
daebaa78 | 1444 | { |
2bc31d16 | 1445 | int i; |
daebaa78 JH |
1446 | |
1447 | if (!hide_refs) | |
1448 | return 0; | |
2bc31d16 JK |
1449 | for (i = hide_refs->nr - 1; i >= 0; i--) { |
1450 | const char *match = hide_refs->items[i].string; | |
78a766ab | 1451 | const char *subject; |
2bc31d16 | 1452 | int neg = 0; |
7a40a95e | 1453 | const char *p; |
2bc31d16 JK |
1454 | |
1455 | if (*match == '!') { | |
1456 | neg = 1; | |
1457 | match++; | |
1458 | } | |
1459 | ||
78a766ab LF |
1460 | if (*match == '^') { |
1461 | subject = refname_full; | |
1462 | match++; | |
1463 | } else { | |
1464 | subject = refname; | |
1465 | } | |
1466 | ||
1467 | /* refname can be NULL when namespaces are used. */ | |
7a40a95e CC |
1468 | if (subject && |
1469 | skip_prefix(subject, match, &p) && | |
1470 | (!*p || *p == '/')) | |
2bc31d16 | 1471 | return !neg; |
daebaa78 JH |
1472 | } |
1473 | return 0; | |
1474 | } | |
fa5b1830 | 1475 | |
0845122c DT |
1476 | const char *find_descendant_ref(const char *dirname, |
1477 | const struct string_list *extras, | |
1478 | const struct string_list *skip) | |
fa5b1830 | 1479 | { |
0845122c | 1480 | int pos; |
fa5b1830 | 1481 | |
0845122c DT |
1482 | if (!extras) |
1483 | return NULL; | |
fa5b1830 MH |
1484 | |
1485 | /* | |
0845122c DT |
1486 | * Look at the place where dirname would be inserted into |
1487 | * extras. If there is an entry at that position that starts | |
1488 | * with dirname (remember, dirname includes the trailing | |
1489 | * slash) and is not in skip, then we have a conflict. | |
fa5b1830 | 1490 | */ |
0845122c DT |
1491 | for (pos = string_list_find_insert_index(extras, dirname, 0); |
1492 | pos < extras->nr; pos++) { | |
1493 | const char *extra_refname = extras->items[pos].string; | |
fa5b1830 | 1494 | |
0845122c DT |
1495 | if (!starts_with(extra_refname, dirname)) |
1496 | break; | |
1497 | ||
1498 | if (!skip || !string_list_has_string(skip, extra_refname)) | |
1499 | return extra_refname; | |
fa5b1830 | 1500 | } |
0845122c DT |
1501 | return NULL; |
1502 | } | |
fa5b1830 | 1503 | |
62f0b399 | 1504 | int refs_head_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
2bf68ed5 DT |
1505 | { |
1506 | struct object_id oid; | |
1507 | int flag; | |
1508 | ||
f1da24ca | 1509 | if (refs_resolve_ref_unsafe(refs, "HEAD", RESOLVE_REF_READING, |
ce14de03 | 1510 | &oid, &flag)) |
2bf68ed5 DT |
1511 | return fn("HEAD", &oid, flag, cb_data); |
1512 | ||
1513 | return 0; | |
1514 | } | |
1515 | ||
1516 | int head_ref(each_ref_fn fn, void *cb_data) | |
1517 | { | |
23a3f0cb | 1518 | return refs_head_ref(get_main_ref_store(the_repository), fn, cb_data); |
2bf68ed5 | 1519 | } |
93770590 | 1520 | |
e121b9cb MH |
1521 | struct ref_iterator *refs_ref_iterator_begin( |
1522 | struct ref_store *refs, | |
9aab952e JK |
1523 | const char *prefix, int trim, |
1524 | enum do_for_each_ref_flags flags) | |
e121b9cb MH |
1525 | { |
1526 | struct ref_iterator *iter; | |
1527 | ||
6d751be4 | 1528 | if (!(flags & DO_FOR_EACH_INCLUDE_BROKEN)) { |
5d1f5b8c JK |
1529 | static int ref_paranoia = -1; |
1530 | ||
6d751be4 | 1531 | if (ref_paranoia < 0) |
968f12fd | 1532 | ref_paranoia = git_env_bool("GIT_REF_PARANOIA", 1); |
6d751be4 JK |
1533 | if (ref_paranoia) { |
1534 | flags |= DO_FOR_EACH_INCLUDE_BROKEN; | |
1535 | flags |= DO_FOR_EACH_OMIT_DANGLING_SYMREFS; | |
1536 | } | |
1537 | } | |
0a0865b8 | 1538 | |
e121b9cb | 1539 | iter = refs->be->iterator_begin(refs, prefix, flags); |
c7599718 MH |
1540 | |
1541 | /* | |
1542 | * `iterator_begin()` already takes care of prefix, but we | |
1543 | * might need to do some trimming: | |
1544 | */ | |
1545 | if (trim) | |
1546 | iter = prefix_ref_iterator_begin(iter, "", trim); | |
e121b9cb | 1547 | |
8738a8a4 MH |
1548 | /* Sanity check for subclasses: */ |
1549 | if (!iter->ordered) | |
1550 | BUG("reference iterator is not ordered"); | |
1551 | ||
e121b9cb MH |
1552 | return iter; |
1553 | } | |
1554 | ||
4c4de895 MH |
1555 | /* |
1556 | * Call fn for each reference in the specified submodule for which the | |
1557 | * refname begins with prefix. If trim is non-zero, then trim that | |
1558 | * many characters off the beginning of each refname before passing | |
1559 | * the refname to fn. flags can be DO_FOR_EACH_INCLUDE_BROKEN to | |
1560 | * include broken references in the iteration. If fn ever returns a | |
1561 | * non-zero value, stop the iteration and return that value; | |
1562 | * otherwise, return 0. | |
1563 | */ | |
4a6067cd SB |
1564 | static int do_for_each_repo_ref(struct repository *r, const char *prefix, |
1565 | each_repo_ref_fn fn, int trim, int flags, | |
1566 | void *cb_data) | |
1567 | { | |
1568 | struct ref_iterator *iter; | |
1569 | struct ref_store *refs = get_main_ref_store(r); | |
1570 | ||
1571 | if (!refs) | |
1572 | return 0; | |
1573 | ||
1574 | iter = refs_ref_iterator_begin(refs, prefix, trim, flags); | |
1575 | ||
1576 | return do_for_each_repo_ref_iterator(r, iter, fn, cb_data); | |
1577 | } | |
1578 | ||
1579 | struct do_for_each_ref_help { | |
1580 | each_ref_fn *fn; | |
1581 | void *cb_data; | |
1582 | }; | |
1583 | ||
1584 | static int do_for_each_ref_helper(struct repository *r, | |
1585 | const char *refname, | |
1586 | const struct object_id *oid, | |
1587 | int flags, | |
1588 | void *cb_data) | |
1589 | { | |
1590 | struct do_for_each_ref_help *hp = cb_data; | |
1591 | ||
1592 | return hp->fn(refname, oid, flags, hp->cb_data); | |
1593 | } | |
1594 | ||
7d2df051 | 1595 | static int do_for_each_ref(struct ref_store *refs, const char *prefix, |
9aab952e JK |
1596 | each_ref_fn fn, int trim, |
1597 | enum do_for_each_ref_flags flags, void *cb_data) | |
4c4de895 MH |
1598 | { |
1599 | struct ref_iterator *iter; | |
4a6067cd | 1600 | struct do_for_each_ref_help hp = { fn, cb_data }; |
4c4de895 | 1601 | |
00eebe35 MH |
1602 | if (!refs) |
1603 | return 0; | |
1604 | ||
e121b9cb | 1605 | iter = refs_ref_iterator_begin(refs, prefix, trim, flags); |
4c4de895 | 1606 | |
4a6067cd SB |
1607 | return do_for_each_repo_ref_iterator(the_repository, iter, |
1608 | do_for_each_ref_helper, &hp); | |
4c4de895 MH |
1609 | } |
1610 | ||
7d2df051 NTND |
1611 | int refs_for_each_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
1612 | { | |
1613 | return do_for_each_ref(refs, "", fn, 0, 0, cb_data); | |
1614 | } | |
1615 | ||
93770590 DT |
1616 | int for_each_ref(each_ref_fn fn, void *cb_data) |
1617 | { | |
23a3f0cb | 1618 | return refs_for_each_ref(get_main_ref_store(the_repository), fn, cb_data); |
93770590 DT |
1619 | } |
1620 | ||
7d2df051 NTND |
1621 | int refs_for_each_ref_in(struct ref_store *refs, const char *prefix, |
1622 | each_ref_fn fn, void *cb_data) | |
1623 | { | |
1624 | return do_for_each_ref(refs, prefix, fn, strlen(prefix), 0, cb_data); | |
93770590 DT |
1625 | } |
1626 | ||
1627 | int for_each_ref_in(const char *prefix, each_ref_fn fn, void *cb_data) | |
1628 | { | |
23a3f0cb | 1629 | return refs_for_each_ref_in(get_main_ref_store(the_repository), prefix, fn, cb_data); |
93770590 DT |
1630 | } |
1631 | ||
67985e4e | 1632 | int for_each_fullref_in(const char *prefix, each_ref_fn fn, void *cb_data) |
93770590 | 1633 | { |
23a3f0cb | 1634 | return do_for_each_ref(get_main_ref_store(the_repository), |
67985e4e | 1635 | prefix, fn, 0, 0, cb_data); |
93770590 DT |
1636 | } |
1637 | ||
073cf63c | 1638 | int refs_for_each_fullref_in(struct ref_store *refs, const char *prefix, |
67985e4e | 1639 | each_ref_fn fn, void *cb_data) |
03df567f | 1640 | { |
67985e4e | 1641 | return do_for_each_ref(refs, prefix, fn, 0, 0, cb_data); |
03df567f MH |
1642 | } |
1643 | ||
212e0f7e | 1644 | int for_each_replace_ref(struct repository *r, each_repo_ref_fn fn, void *cb_data) |
93770590 | 1645 | { |
97e61e0f | 1646 | const char *git_replace_ref_base = ref_namespace[NAMESPACE_REPLACE].ref; |
212e0f7e SB |
1647 | return do_for_each_repo_ref(r, git_replace_ref_base, fn, |
1648 | strlen(git_replace_ref_base), | |
1649 | DO_FOR_EACH_INCLUDE_BROKEN, cb_data); | |
93770590 DT |
1650 | } |
1651 | ||
1652 | int for_each_namespaced_ref(each_ref_fn fn, void *cb_data) | |
1653 | { | |
1654 | struct strbuf buf = STRBUF_INIT; | |
1655 | int ret; | |
1656 | strbuf_addf(&buf, "%srefs/", get_git_namespace()); | |
23a3f0cb | 1657 | ret = do_for_each_ref(get_main_ref_store(the_repository), |
7d2df051 | 1658 | buf.buf, fn, 0, 0, cb_data); |
93770590 DT |
1659 | strbuf_release(&buf); |
1660 | return ret; | |
1661 | } | |
1662 | ||
7d2df051 | 1663 | int refs_for_each_rawref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
93770590 | 1664 | { |
7d2df051 | 1665 | return do_for_each_ref(refs, "", fn, 0, |
93770590 DT |
1666 | DO_FOR_EACH_INCLUDE_BROKEN, cb_data); |
1667 | } | |
2d0663b2 | 1668 | |
7d2df051 NTND |
1669 | int for_each_rawref(each_ref_fn fn, void *cb_data) |
1670 | { | |
23a3f0cb | 1671 | return refs_for_each_rawref(get_main_ref_store(the_repository), fn, cb_data); |
7d2df051 NTND |
1672 | } |
1673 | ||
16b1985b TB |
1674 | static int qsort_strcmp(const void *va, const void *vb) |
1675 | { | |
1676 | const char *a = *(const char **)va; | |
1677 | const char *b = *(const char **)vb; | |
1678 | ||
1679 | return strcmp(a, b); | |
1680 | } | |
1681 | ||
1682 | static void find_longest_prefixes_1(struct string_list *out, | |
1683 | struct strbuf *prefix, | |
1684 | const char **patterns, size_t nr) | |
1685 | { | |
1686 | size_t i; | |
1687 | ||
1688 | for (i = 0; i < nr; i++) { | |
1689 | char c = patterns[i][prefix->len]; | |
1690 | if (!c || is_glob_special(c)) { | |
1691 | string_list_append(out, prefix->buf); | |
1692 | return; | |
1693 | } | |
1694 | } | |
1695 | ||
1696 | i = 0; | |
1697 | while (i < nr) { | |
1698 | size_t end; | |
1699 | ||
1700 | /* | |
1701 | * Set "end" to the index of the element _after_ the last one | |
1702 | * in our group. | |
1703 | */ | |
1704 | for (end = i + 1; end < nr; end++) { | |
1705 | if (patterns[i][prefix->len] != patterns[end][prefix->len]) | |
1706 | break; | |
1707 | } | |
1708 | ||
1709 | strbuf_addch(prefix, patterns[i][prefix->len]); | |
1710 | find_longest_prefixes_1(out, prefix, patterns + i, end - i); | |
1711 | strbuf_setlen(prefix, prefix->len - 1); | |
1712 | ||
1713 | i = end; | |
1714 | } | |
1715 | } | |
1716 | ||
1717 | static void find_longest_prefixes(struct string_list *out, | |
1718 | const char **patterns) | |
1719 | { | |
1720 | struct strvec sorted = STRVEC_INIT; | |
1721 | struct strbuf prefix = STRBUF_INIT; | |
1722 | ||
1723 | strvec_pushv(&sorted, patterns); | |
1724 | QSORT(sorted.v, sorted.nr, qsort_strcmp); | |
1725 | ||
1726 | find_longest_prefixes_1(out, &prefix, sorted.v, sorted.nr); | |
1727 | ||
1728 | strvec_clear(&sorted); | |
1729 | strbuf_release(&prefix); | |
1730 | } | |
1731 | ||
1732 | int for_each_fullref_in_prefixes(const char *namespace, | |
1733 | const char **patterns, | |
67985e4e | 1734 | each_ref_fn fn, void *cb_data) |
16b1985b TB |
1735 | { |
1736 | struct string_list prefixes = STRING_LIST_INIT_DUP; | |
1737 | struct string_list_item *prefix; | |
1738 | struct strbuf buf = STRBUF_INIT; | |
1739 | int ret = 0, namespace_len; | |
1740 | ||
1741 | find_longest_prefixes(&prefixes, patterns); | |
1742 | ||
1743 | if (namespace) | |
1744 | strbuf_addstr(&buf, namespace); | |
1745 | namespace_len = buf.len; | |
1746 | ||
1747 | for_each_string_list_item(prefix, &prefixes) { | |
1748 | strbuf_addstr(&buf, prefix->string); | |
67985e4e | 1749 | ret = for_each_fullref_in(buf.buf, fn, cb_data); |
16b1985b TB |
1750 | if (ret) |
1751 | break; | |
1752 | strbuf_setlen(&buf, namespace_len); | |
1753 | } | |
1754 | ||
1755 | string_list_clear(&prefixes, 0); | |
1756 | strbuf_release(&buf); | |
1757 | return ret; | |
1758 | } | |
1759 | ||
e8115302 HWN |
1760 | static int refs_read_special_head(struct ref_store *ref_store, |
1761 | const char *refname, struct object_id *oid, | |
df3458e9 HWN |
1762 | struct strbuf *referent, unsigned int *type, |
1763 | int *failure_errno) | |
e8115302 HWN |
1764 | { |
1765 | struct strbuf full_path = STRBUF_INIT; | |
1766 | struct strbuf content = STRBUF_INIT; | |
1767 | int result = -1; | |
1768 | strbuf_addf(&full_path, "%s/%s", ref_store->gitdir, refname); | |
1769 | ||
1770 | if (strbuf_read_file(&content, full_path.buf, 0) < 0) | |
1771 | goto done; | |
1772 | ||
df3458e9 HWN |
1773 | result = parse_loose_ref_contents(content.buf, oid, referent, type, |
1774 | failure_errno); | |
e8115302 HWN |
1775 | |
1776 | done: | |
1777 | strbuf_release(&full_path); | |
1778 | strbuf_release(&content); | |
1779 | return result; | |
1780 | } | |
1781 | ||
8b72fea7 HWN |
1782 | int refs_read_raw_ref(struct ref_store *ref_store, const char *refname, |
1783 | struct object_id *oid, struct strbuf *referent, | |
1784 | unsigned int *type, int *failure_errno) | |
470be518 | 1785 | { |
8b72fea7 | 1786 | assert(failure_errno); |
e8115302 HWN |
1787 | if (!strcmp(refname, "FETCH_HEAD") || !strcmp(refname, "MERGE_HEAD")) { |
1788 | return refs_read_special_head(ref_store, refname, oid, referent, | |
df3458e9 | 1789 | type, failure_errno); |
e8115302 HWN |
1790 | } |
1791 | ||
1792 | return ref_store->be->read_raw_ref(ref_store, refname, oid, referent, | |
8b72fea7 | 1793 | type, failure_errno); |
470be518 MH |
1794 | } |
1795 | ||
cd475b3b PS |
1796 | int refs_read_symbolic_ref(struct ref_store *ref_store, const char *refname, |
1797 | struct strbuf *referent) | |
1798 | { | |
5b875404 | 1799 | return ref_store->be->read_symbolic_ref(ref_store, refname, referent); |
cd475b3b PS |
1800 | } |
1801 | ||
7d2df051 | 1802 | const char *refs_resolve_ref_unsafe(struct ref_store *refs, |
3c0cb0cb MH |
1803 | const char *refname, |
1804 | int resolve_flags, | |
ef18119d | 1805 | struct object_id *oid, |
ce14de03 | 1806 | int *flags) |
2d0663b2 DT |
1807 | { |
1808 | static struct strbuf sb_refname = STRBUF_INIT; | |
54fad661 | 1809 | struct object_id unused_oid; |
2d0663b2 DT |
1810 | int unused_flags; |
1811 | int symref_count; | |
1812 | ||
49e61479 | 1813 | if (!oid) |
1814 | oid = &unused_oid; | |
2d0663b2 DT |
1815 | if (!flags) |
1816 | flags = &unused_flags; | |
1817 | ||
1818 | *flags = 0; | |
1819 | ||
1820 | if (check_refname_format(refname, REFNAME_ALLOW_ONELEVEL)) { | |
1821 | if (!(resolve_flags & RESOLVE_REF_ALLOW_BAD_NAME) || | |
ce14de03 | 1822 | !refname_is_safe(refname)) |
2d0663b2 | 1823 | return NULL; |
2d0663b2 DT |
1824 | |
1825 | /* | |
1826 | * dwim_ref() uses REF_ISBROKEN to distinguish between | |
1827 | * missing refs and refs that were present but invalid, | |
1828 | * to complain about the latter to stderr. | |
1829 | * | |
1830 | * We don't know whether the ref exists, so don't set | |
1831 | * REF_ISBROKEN yet. | |
1832 | */ | |
1833 | *flags |= REF_BAD_NAME; | |
1834 | } | |
1835 | ||
1836 | for (symref_count = 0; symref_count < SYMREF_MAXDEPTH; symref_count++) { | |
1837 | unsigned int read_flags = 0; | |
ce14de03 | 1838 | int failure_errno; |
2d0663b2 | 1839 | |
8b72fea7 | 1840 | if (refs_read_raw_ref(refs, refname, oid, &sb_refname, |
ce14de03 | 1841 | &read_flags, &failure_errno)) { |
2d0663b2 | 1842 | *flags |= read_flags; |
a1c1d817 JK |
1843 | |
1844 | /* In reading mode, refs must eventually resolve */ | |
1845 | if (resolve_flags & RESOLVE_REF_READING) | |
1846 | return NULL; | |
1847 | ||
1848 | /* | |
1849 | * Otherwise a missing ref is OK. But the files backend | |
1850 | * may show errors besides ENOENT if there are | |
1851 | * similarly-named refs. | |
1852 | */ | |
ce14de03 ÆAB |
1853 | if (failure_errno != ENOENT && |
1854 | failure_errno != EISDIR && | |
1855 | failure_errno != ENOTDIR) | |
2d0663b2 | 1856 | return NULL; |
a1c1d817 | 1857 | |
49e61479 | 1858 | oidclr(oid); |
2d0663b2 DT |
1859 | if (*flags & REF_BAD_NAME) |
1860 | *flags |= REF_ISBROKEN; | |
1861 | return refname; | |
1862 | } | |
1863 | ||
1864 | *flags |= read_flags; | |
1865 | ||
1866 | if (!(read_flags & REF_ISSYMREF)) { | |
1867 | if (*flags & REF_BAD_NAME) { | |
49e61479 | 1868 | oidclr(oid); |
2d0663b2 DT |
1869 | *flags |= REF_ISBROKEN; |
1870 | } | |
1871 | return refname; | |
1872 | } | |
1873 | ||
1874 | refname = sb_refname.buf; | |
1875 | if (resolve_flags & RESOLVE_REF_NO_RECURSE) { | |
49e61479 | 1876 | oidclr(oid); |
2d0663b2 DT |
1877 | return refname; |
1878 | } | |
1879 | if (check_refname_format(refname, REFNAME_ALLOW_ONELEVEL)) { | |
1880 | if (!(resolve_flags & RESOLVE_REF_ALLOW_BAD_NAME) || | |
ce14de03 | 1881 | !refname_is_safe(refname)) |
2d0663b2 | 1882 | return NULL; |
2d0663b2 DT |
1883 | |
1884 | *flags |= REF_ISBROKEN | REF_BAD_NAME; | |
1885 | } | |
1886 | } | |
1887 | ||
2d0663b2 DT |
1888 | return NULL; |
1889 | } | |
00eebe35 | 1890 | |
6fb5acfd DT |
1891 | /* backend functions */ |
1892 | int refs_init_db(struct strbuf *err) | |
1893 | { | |
23a3f0cb | 1894 | struct ref_store *refs = get_main_ref_store(the_repository); |
6fb5acfd DT |
1895 | |
1896 | return refs->be->init_db(refs, err); | |
1897 | } | |
1898 | ||
bd40dcda | 1899 | const char *resolve_ref_unsafe(const char *refname, int resolve_flags, |
49e61479 | 1900 | struct object_id *oid, int *flags) |
bd40dcda | 1901 | { |
23a3f0cb | 1902 | return refs_resolve_ref_unsafe(get_main_ref_store(the_repository), refname, |
ce14de03 | 1903 | resolve_flags, oid, flags); |
bd40dcda MH |
1904 | } |
1905 | ||
a8355bb7 | 1906 | int resolve_gitlink_ref(const char *submodule, const char *refname, |
a98e6101 | 1907 | struct object_id *oid) |
424dcc76 | 1908 | { |
424dcc76 MH |
1909 | struct ref_store *refs; |
1910 | int flags; | |
1911 | ||
29babbee | 1912 | refs = get_submodule_ref_store(submodule); |
48a8475f | 1913 | |
424dcc76 MH |
1914 | if (!refs) |
1915 | return -1; | |
1916 | ||
ce14de03 ÆAB |
1917 | if (!refs_resolve_ref_unsafe(refs, refname, 0, oid, &flags) || |
1918 | is_null_oid(oid)) | |
424dcc76 MH |
1919 | return -1; |
1920 | return 0; | |
1921 | } | |
1922 | ||
0c064d90 | 1923 | struct ref_store_hash_entry |
7d4558c4 | 1924 | { |
e2b5038d | 1925 | struct hashmap_entry ent; |
7d4558c4 MH |
1926 | |
1927 | struct ref_store *refs; | |
1928 | ||
0c064d90 NTND |
1929 | /* NUL-terminated identifier of the ref store: */ |
1930 | char name[FLEX_ARRAY]; | |
7d4558c4 MH |
1931 | }; |
1932 | ||
5cf88fd8 | 1933 | static int ref_store_hash_cmp(const void *cmp_data UNUSED, |
939af16e EW |
1934 | const struct hashmap_entry *eptr, |
1935 | const struct hashmap_entry *entry_or_key, | |
7d4558c4 MH |
1936 | const void *keydata) |
1937 | { | |
939af16e EW |
1938 | const struct ref_store_hash_entry *e1, *e2; |
1939 | const char *name; | |
1940 | ||
1941 | e1 = container_of(eptr, const struct ref_store_hash_entry, ent); | |
1942 | e2 = container_of(entry_or_key, const struct ref_store_hash_entry, ent); | |
1943 | name = keydata ? keydata : e2->name; | |
7d4558c4 | 1944 | |
0c064d90 | 1945 | return strcmp(e1->name, name); |
7d4558c4 MH |
1946 | } |
1947 | ||
0c064d90 NTND |
1948 | static struct ref_store_hash_entry *alloc_ref_store_hash_entry( |
1949 | const char *name, struct ref_store *refs) | |
7d4558c4 | 1950 | { |
0c064d90 | 1951 | struct ref_store_hash_entry *entry; |
7d4558c4 | 1952 | |
0c064d90 | 1953 | FLEX_ALLOC_STR(entry, name, name); |
d22245a2 | 1954 | hashmap_entry_init(&entry->ent, strhash(name)); |
7d4558c4 MH |
1955 | entry->refs = refs; |
1956 | return entry; | |
1957 | } | |
1958 | ||
7d4558c4 MH |
1959 | /* A hashmap of ref_stores, stored by submodule name: */ |
1960 | static struct hashmap submodule_ref_stores; | |
00eebe35 | 1961 | |
17eff96b NTND |
1962 | /* A hashmap of ref_stores, stored by worktree id: */ |
1963 | static struct hashmap worktree_ref_stores; | |
1964 | ||
c468da4e | 1965 | /* |
0c064d90 NTND |
1966 | * Look up a ref store by name. If that ref_store hasn't been |
1967 | * registered yet, return NULL. | |
c468da4e | 1968 | */ |
0c064d90 NTND |
1969 | static struct ref_store *lookup_ref_store_map(struct hashmap *map, |
1970 | const char *name) | |
00eebe35 | 1971 | { |
0c064d90 | 1972 | struct ref_store_hash_entry *entry; |
f23a4651 | 1973 | unsigned int hash; |
00eebe35 | 1974 | |
0c064d90 | 1975 | if (!map->tablesize) |
7d4558c4 MH |
1976 | /* It's initialized on demand in register_ref_store(). */ |
1977 | return NULL; | |
620a66b9 | 1978 | |
f23a4651 EW |
1979 | hash = strhash(name); |
1980 | entry = hashmap_get_entry_from_hash(map, hash, name, | |
1981 | struct ref_store_hash_entry, ent); | |
7d4558c4 | 1982 | return entry ? entry->refs : NULL; |
00eebe35 MH |
1983 | } |
1984 | ||
c468da4e MH |
1985 | /* |
1986 | * Create, record, and return a ref_store instance for the specified | |
5d0bc90e | 1987 | * gitdir. |
c468da4e | 1988 | */ |
34224e14 JT |
1989 | static struct ref_store *ref_store_init(struct repository *repo, |
1990 | const char *gitdir, | |
9e7ec634 | 1991 | unsigned int flags) |
00eebe35 MH |
1992 | { |
1993 | const char *be_name = "files"; | |
1994 | struct ref_storage_be *be = find_ref_storage_backend(be_name); | |
ba88add5 | 1995 | struct ref_store *refs; |
00eebe35 MH |
1996 | |
1997 | if (!be) | |
033abf97 | 1998 | BUG("reference backend %s is unknown", be_name); |
00eebe35 | 1999 | |
34224e14 | 2000 | refs = be->init(repo, gitdir, flags); |
ba88add5 | 2001 | return refs; |
00eebe35 MH |
2002 | } |
2003 | ||
64a74161 | 2004 | struct ref_store *get_main_ref_store(struct repository *r) |
24c8407e | 2005 | { |
02204610 JK |
2006 | if (r->refs_private) |
2007 | return r->refs_private; | |
24c8407e | 2008 | |
2dc417ab JK |
2009 | if (!r->gitdir) |
2010 | BUG("attempting to get main_ref_store outside of repository"); | |
2011 | ||
34224e14 | 2012 | r->refs_private = ref_store_init(r, r->gitdir, REF_STORE_ALL_CAPS); |
4441f427 | 2013 | r->refs_private = maybe_debug_wrap_ref_store(r->gitdir, r->refs_private); |
02204610 | 2014 | return r->refs_private; |
378dc910 NTND |
2015 | } |
2016 | ||
2017 | /* | |
0c064d90 NTND |
2018 | * Associate a ref store with a name. It is a fatal error to call this |
2019 | * function twice for the same name. | |
378dc910 | 2020 | */ |
0c064d90 NTND |
2021 | static void register_ref_store_map(struct hashmap *map, |
2022 | const char *type, | |
2023 | struct ref_store *refs, | |
2024 | const char *name) | |
378dc910 | 2025 | { |
26b455f2 EW |
2026 | struct ref_store_hash_entry *entry; |
2027 | ||
0c064d90 | 2028 | if (!map->tablesize) |
7663cdc8 | 2029 | hashmap_init(map, ref_store_hash_cmp, NULL, 0); |
378dc910 | 2030 | |
26b455f2 EW |
2031 | entry = alloc_ref_store_hash_entry(name, refs); |
2032 | if (hashmap_put(map, &entry->ent)) | |
033abf97 | 2033 | BUG("%s ref_store '%s' initialized twice", type, name); |
24c8407e NTND |
2034 | } |
2035 | ||
18d0002d | 2036 | struct ref_store *get_submodule_ref_store(const char *submodule) |
00eebe35 | 2037 | { |
126c9e05 | 2038 | struct strbuf submodule_sb = STRBUF_INIT; |
00eebe35 | 2039 | struct ref_store *refs; |
29babbee NTND |
2040 | char *to_free = NULL; |
2041 | size_t len; | |
34224e14 | 2042 | struct repository *subrepo; |
00eebe35 | 2043 | |
82a150f2 NTND |
2044 | if (!submodule) |
2045 | return NULL; | |
2046 | ||
873ea90d NTND |
2047 | len = strlen(submodule); |
2048 | while (len && is_dir_sep(submodule[len - 1])) | |
2049 | len--; | |
2050 | if (!len) | |
2051 | return NULL; | |
00eebe35 | 2052 | |
29babbee NTND |
2053 | if (submodule[len]) |
2054 | /* We need to strip off one or more trailing slashes */ | |
2055 | submodule = to_free = xmemdupz(submodule, len); | |
00eebe35 | 2056 | |
0c064d90 | 2057 | refs = lookup_ref_store_map(&submodule_ref_stores, submodule); |
126c9e05 | 2058 | if (refs) |
2c616c17 | 2059 | goto done; |
00eebe35 | 2060 | |
126c9e05 | 2061 | strbuf_addstr(&submodule_sb, submodule); |
2c616c17 NTND |
2062 | if (!is_nonbare_repository_dir(&submodule_sb)) |
2063 | goto done; | |
00eebe35 | 2064 | |
2c616c17 NTND |
2065 | if (submodule_to_gitdir(&submodule_sb, submodule)) |
2066 | goto done; | |
00eebe35 | 2067 | |
34224e14 JT |
2068 | subrepo = xmalloc(sizeof(*subrepo)); |
2069 | /* | |
2070 | * NEEDSWORK: Make get_submodule_ref_store() work with arbitrary | |
2071 | * superprojects other than the_repository. This probably should be | |
2072 | * done by making it take a struct repository * parameter instead of a | |
2073 | * submodule path. | |
2074 | */ | |
2075 | if (repo_submodule_init(subrepo, the_repository, submodule, | |
2076 | null_oid())) { | |
2077 | free(subrepo); | |
2078 | goto done; | |
2079 | } | |
2080 | refs = ref_store_init(subrepo, submodule_sb.buf, | |
9e7ec634 | 2081 | REF_STORE_READ | REF_STORE_ODB); |
0c064d90 NTND |
2082 | register_ref_store_map(&submodule_ref_stores, "submodule", |
2083 | refs, submodule); | |
5d0bc90e | 2084 | |
2c616c17 | 2085 | done: |
5d0bc90e | 2086 | strbuf_release(&submodule_sb); |
29babbee NTND |
2087 | free(to_free); |
2088 | ||
00eebe35 MH |
2089 | return refs; |
2090 | } | |
2091 | ||
17eff96b NTND |
2092 | struct ref_store *get_worktree_ref_store(const struct worktree *wt) |
2093 | { | |
2094 | struct ref_store *refs; | |
2095 | const char *id; | |
2096 | ||
2097 | if (wt->is_current) | |
23a3f0cb | 2098 | return get_main_ref_store(the_repository); |
17eff96b NTND |
2099 | |
2100 | id = wt->id ? wt->id : "/"; | |
2101 | refs = lookup_ref_store_map(&worktree_ref_stores, id); | |
2102 | if (refs) | |
2103 | return refs; | |
2104 | ||
2105 | if (wt->id) | |
34224e14 JT |
2106 | refs = ref_store_init(the_repository, |
2107 | git_common_path("worktrees/%s", wt->id), | |
17eff96b NTND |
2108 | REF_STORE_ALL_CAPS); |
2109 | else | |
34224e14 JT |
2110 | refs = ref_store_init(the_repository, |
2111 | get_git_common_dir(), | |
17eff96b NTND |
2112 | REF_STORE_ALL_CAPS); |
2113 | ||
2114 | if (refs) | |
2115 | register_ref_store_map(&worktree_ref_stores, "worktree", | |
2116 | refs, id); | |
2117 | return refs; | |
2118 | } | |
2119 | ||
f9f7fd3b HWN |
2120 | void base_ref_store_init(struct ref_store *refs, struct repository *repo, |
2121 | const char *path, const struct ref_storage_be *be) | |
00eebe35 | 2122 | { |
620a66b9 | 2123 | refs->be = be; |
f9f7fd3b HWN |
2124 | refs->repo = repo; |
2125 | refs->gitdir = xstrdup(path); | |
00eebe35 | 2126 | } |
127b42a1 RS |
2127 | |
2128 | /* backend functions */ | |
7d2df051 | 2129 | int refs_pack_refs(struct ref_store *refs, unsigned int flags) |
8231527e | 2130 | { |
8231527e MH |
2131 | return refs->be->pack_refs(refs, flags); |
2132 | } | |
2133 | ||
36a31792 | 2134 | int peel_iterated_oid(const struct object_id *base, struct object_id *peeled) |
7d2df051 | 2135 | { |
36a31792 JK |
2136 | if (current_ref_iter && |
2137 | (current_ref_iter->oid == base || | |
2138 | oideq(current_ref_iter->oid, base))) | |
2139 | return ref_iterator_peel(current_ref_iter, peeled); | |
ba1c052f | 2140 | |
617480d7 | 2141 | return peel_object(base, peeled) ? -1 : 0; |
7d2df051 | 2142 | } |
bd427cf2 | 2143 | |
7d2df051 NTND |
2144 | int refs_create_symref(struct ref_store *refs, |
2145 | const char *ref_target, | |
2146 | const char *refs_heads_master, | |
2147 | const char *logmsg) | |
2148 | { | |
523fa69c JH |
2149 | char *msg; |
2150 | int retval; | |
2151 | ||
2152 | msg = normalize_reflog_message(logmsg); | |
2153 | retval = refs->be->create_symref(refs, ref_target, refs_heads_master, | |
2154 | msg); | |
2155 | free(msg); | |
2156 | return retval; | |
bd427cf2 MH |
2157 | } |
2158 | ||
284689ba MH |
2159 | int create_symref(const char *ref_target, const char *refs_heads_master, |
2160 | const char *logmsg) | |
2161 | { | |
23a3f0cb | 2162 | return refs_create_symref(get_main_ref_store(the_repository), ref_target, |
7d2df051 | 2163 | refs_heads_master, logmsg); |
284689ba MH |
2164 | } |
2165 | ||
2ced105c MH |
2166 | int ref_update_reject_duplicates(struct string_list *refnames, |
2167 | struct strbuf *err) | |
2168 | { | |
a552e50e | 2169 | size_t i, n = refnames->nr; |
2ced105c MH |
2170 | |
2171 | assert(err); | |
2172 | ||
8556f8d6 MH |
2173 | for (i = 1; i < n; i++) { |
2174 | int cmp = strcmp(refnames->items[i - 1].string, | |
2175 | refnames->items[i].string); | |
2176 | ||
2177 | if (!cmp) { | |
2ced105c | 2178 | strbuf_addf(err, |
661558f0 | 2179 | _("multiple updates for ref '%s' not allowed"), |
2ced105c MH |
2180 | refnames->items[i].string); |
2181 | return 1; | |
8556f8d6 | 2182 | } else if (cmp > 0) { |
033abf97 | 2183 | BUG("ref_update_reject_duplicates() received unsorted list"); |
2ced105c | 2184 | } |
8556f8d6 | 2185 | } |
2ced105c MH |
2186 | return 0; |
2187 | } | |
2188 | ||
67541597 PS |
2189 | static int run_transaction_hook(struct ref_transaction *transaction, |
2190 | const char *state) | |
2191 | { | |
2192 | struct child_process proc = CHILD_PROCESS_INIT; | |
2193 | struct strbuf buf = STRBUF_INIT; | |
0a0fbbe3 | 2194 | const char *hook; |
67541597 PS |
2195 | int ret = 0, i; |
2196 | ||
0a0fbbe3 | 2197 | hook = find_hook("reference-transaction"); |
67541597 | 2198 | if (!hook) |
67541597 | 2199 | return ret; |
67541597 | 2200 | |
c972bf4c | 2201 | strvec_pushl(&proc.args, hook, state, NULL); |
67541597 PS |
2202 | proc.in = -1; |
2203 | proc.stdout_to_stderr = 1; | |
2204 | proc.trace2_hook_name = "reference-transaction"; | |
2205 | ||
2206 | ret = start_command(&proc); | |
2207 | if (ret) | |
2208 | return ret; | |
2209 | ||
2210 | sigchain_push(SIGPIPE, SIG_IGN); | |
2211 | ||
2212 | for (i = 0; i < transaction->nr; i++) { | |
2213 | struct ref_update *update = transaction->updates[i]; | |
2214 | ||
2215 | strbuf_reset(&buf); | |
2216 | strbuf_addf(&buf, "%s %s %s\n", | |
2217 | oid_to_hex(&update->old_oid), | |
2218 | oid_to_hex(&update->new_oid), | |
2219 | update->refname); | |
2220 | ||
2221 | if (write_in_full(proc.in, buf.buf, buf.len) < 0) { | |
4755d7df ÆAB |
2222 | if (errno != EPIPE) { |
2223 | /* Don't leak errno outside this API */ | |
2224 | errno = 0; | |
67541597 | 2225 | ret = -1; |
4755d7df | 2226 | } |
67541597 PS |
2227 | break; |
2228 | } | |
2229 | } | |
2230 | ||
2231 | close(proc.in); | |
2232 | sigchain_pop(SIGPIPE); | |
2233 | strbuf_release(&buf); | |
2234 | ||
2235 | ret |= finish_command(&proc); | |
2236 | return ret; | |
2237 | } | |
2238 | ||
30173b88 MH |
2239 | int ref_transaction_prepare(struct ref_transaction *transaction, |
2240 | struct strbuf *err) | |
127b42a1 | 2241 | { |
c0fe4e8b | 2242 | struct ref_store *refs = transaction->ref_store; |
67541597 | 2243 | int ret; |
127b42a1 | 2244 | |
8d4240d3 MH |
2245 | switch (transaction->state) { |
2246 | case REF_TRANSACTION_OPEN: | |
2247 | /* Good. */ | |
2248 | break; | |
30173b88 | 2249 | case REF_TRANSACTION_PREPARED: |
033abf97 | 2250 | BUG("prepare called twice on reference transaction"); |
30173b88 | 2251 | break; |
8d4240d3 | 2252 | case REF_TRANSACTION_CLOSED: |
033abf97 | 2253 | BUG("prepare called on a closed reference transaction"); |
8d4240d3 MH |
2254 | break; |
2255 | default: | |
033abf97 | 2256 | BUG("unexpected reference transaction state"); |
8d4240d3 MH |
2257 | break; |
2258 | } | |
2259 | ||
ecd81dfc | 2260 | if (refs->repo->objects->odb->disable_ref_updates) { |
d8f4481c JK |
2261 | strbuf_addstr(err, |
2262 | _("ref updates forbidden inside quarantine environment")); | |
2263 | return -1; | |
2264 | } | |
2265 | ||
67541597 PS |
2266 | ret = refs->be->transaction_prepare(refs, transaction, err); |
2267 | if (ret) | |
2268 | return ret; | |
2269 | ||
2270 | ret = run_transaction_hook(transaction, "prepared"); | |
2271 | if (ret) { | |
2272 | ref_transaction_abort(transaction, err); | |
2273 | die(_("ref updates aborted by hook")); | |
2274 | } | |
2275 | ||
2276 | return 0; | |
30173b88 MH |
2277 | } |
2278 | ||
2279 | int ref_transaction_abort(struct ref_transaction *transaction, | |
2280 | struct strbuf *err) | |
2281 | { | |
2282 | struct ref_store *refs = transaction->ref_store; | |
2283 | int ret = 0; | |
2284 | ||
2285 | switch (transaction->state) { | |
2286 | case REF_TRANSACTION_OPEN: | |
2287 | /* No need to abort explicitly. */ | |
2288 | break; | |
2289 | case REF_TRANSACTION_PREPARED: | |
2290 | ret = refs->be->transaction_abort(refs, transaction, err); | |
2291 | break; | |
2292 | case REF_TRANSACTION_CLOSED: | |
033abf97 | 2293 | BUG("abort called on a closed reference transaction"); |
30173b88 MH |
2294 | break; |
2295 | default: | |
033abf97 | 2296 | BUG("unexpected reference transaction state"); |
30173b88 MH |
2297 | break; |
2298 | } | |
2299 | ||
67541597 PS |
2300 | run_transaction_hook(transaction, "aborted"); |
2301 | ||
30173b88 MH |
2302 | ref_transaction_free(transaction); |
2303 | return ret; | |
2304 | } | |
2305 | ||
2306 | int ref_transaction_commit(struct ref_transaction *transaction, | |
2307 | struct strbuf *err) | |
2308 | { | |
2309 | struct ref_store *refs = transaction->ref_store; | |
2310 | int ret; | |
2311 | ||
2312 | switch (transaction->state) { | |
2313 | case REF_TRANSACTION_OPEN: | |
2314 | /* Need to prepare first. */ | |
2315 | ret = ref_transaction_prepare(transaction, err); | |
2316 | if (ret) | |
2317 | return ret; | |
2318 | break; | |
2319 | case REF_TRANSACTION_PREPARED: | |
2320 | /* Fall through to finish. */ | |
2321 | break; | |
2322 | case REF_TRANSACTION_CLOSED: | |
033abf97 | 2323 | BUG("commit called on a closed reference transaction"); |
30173b88 MH |
2324 | break; |
2325 | default: | |
033abf97 | 2326 | BUG("unexpected reference transaction state"); |
30173b88 MH |
2327 | break; |
2328 | } | |
2329 | ||
67541597 PS |
2330 | ret = refs->be->transaction_finish(refs, transaction, err); |
2331 | if (!ret) | |
2332 | run_transaction_hook(transaction, "committed"); | |
2333 | return ret; | |
127b42a1 | 2334 | } |
62665823 | 2335 | |
7d2df051 NTND |
2336 | int refs_verify_refname_available(struct ref_store *refs, |
2337 | const char *refname, | |
b05855b5 | 2338 | const struct string_list *extras, |
7d2df051 NTND |
2339 | const struct string_list *skip, |
2340 | struct strbuf *err) | |
62665823 | 2341 | { |
b05855b5 MH |
2342 | const char *slash; |
2343 | const char *extra_refname; | |
2344 | struct strbuf dirname = STRBUF_INIT; | |
2345 | struct strbuf referent = STRBUF_INIT; | |
2346 | struct object_id oid; | |
2347 | unsigned int type; | |
2348 | struct ref_iterator *iter; | |
2349 | int ok; | |
2350 | int ret = -1; | |
2351 | ||
2352 | /* | |
2353 | * For the sake of comments in this function, suppose that | |
2354 | * refname is "refs/foo/bar". | |
2355 | */ | |
2356 | ||
2357 | assert(err); | |
2358 | ||
2359 | strbuf_grow(&dirname, strlen(refname) + 1); | |
2360 | for (slash = strchr(refname, '/'); slash; slash = strchr(slash + 1, '/')) { | |
8b72fea7 HWN |
2361 | /* |
2362 | * Just saying "Is a directory" when we e.g. can't | |
2363 | * lock some multi-level ref isn't very informative, | |
2364 | * the user won't be told *what* is a directory, so | |
2365 | * let's not use strerror() below. | |
2366 | */ | |
2367 | int ignore_errno; | |
b05855b5 MH |
2368 | /* Expand dirname to the new prefix, not including the trailing slash: */ |
2369 | strbuf_add(&dirname, refname + dirname.len, slash - refname - dirname.len); | |
2370 | ||
2371 | /* | |
2372 | * We are still at a leading dir of the refname (e.g., | |
2373 | * "refs/foo"; if there is a reference with that name, | |
2374 | * it is a conflict, *unless* it is in skip. | |
2375 | */ | |
2376 | if (skip && string_list_has_string(skip, dirname.buf)) | |
2377 | continue; | |
2378 | ||
8b72fea7 HWN |
2379 | if (!refs_read_raw_ref(refs, dirname.buf, &oid, &referent, |
2380 | &type, &ignore_errno)) { | |
661558f0 | 2381 | strbuf_addf(err, _("'%s' exists; cannot create '%s'"), |
b05855b5 MH |
2382 | dirname.buf, refname); |
2383 | goto cleanup; | |
2384 | } | |
2385 | ||
2386 | if (extras && string_list_has_string(extras, dirname.buf)) { | |
661558f0 | 2387 | strbuf_addf(err, _("cannot process '%s' and '%s' at the same time"), |
b05855b5 MH |
2388 | refname, dirname.buf); |
2389 | goto cleanup; | |
2390 | } | |
2391 | } | |
2392 | ||
2393 | /* | |
2394 | * We are at the leaf of our refname (e.g., "refs/foo/bar"). | |
2395 | * There is no point in searching for a reference with that | |
2396 | * name, because a refname isn't considered to conflict with | |
2397 | * itself. But we still need to check for references whose | |
2398 | * names are in the "refs/foo/bar/" namespace, because they | |
2399 | * *do* conflict. | |
2400 | */ | |
2401 | strbuf_addstr(&dirname, refname + dirname.len); | |
2402 | strbuf_addch(&dirname, '/'); | |
2403 | ||
2404 | iter = refs_ref_iterator_begin(refs, dirname.buf, 0, | |
2405 | DO_FOR_EACH_INCLUDE_BROKEN); | |
2406 | while ((ok = ref_iterator_advance(iter)) == ITER_OK) { | |
2407 | if (skip && | |
2408 | string_list_has_string(skip, iter->refname)) | |
2409 | continue; | |
2410 | ||
661558f0 | 2411 | strbuf_addf(err, _("'%s' exists; cannot create '%s'"), |
b05855b5 MH |
2412 | iter->refname, refname); |
2413 | ref_iterator_abort(iter); | |
2414 | goto cleanup; | |
2415 | } | |
2416 | ||
2417 | if (ok != ITER_DONE) | |
033abf97 | 2418 | BUG("error while iterating over references"); |
b05855b5 MH |
2419 | |
2420 | extra_refname = find_descendant_ref(dirname.buf, extras, skip); | |
2421 | if (extra_refname) | |
661558f0 | 2422 | strbuf_addf(err, _("cannot process '%s' and '%s' at the same time"), |
b05855b5 MH |
2423 | refname, extra_refname); |
2424 | else | |
2425 | ret = 0; | |
2426 | ||
2427 | cleanup: | |
2428 | strbuf_release(&referent); | |
2429 | strbuf_release(&dirname); | |
2430 | return ret; | |
62665823 | 2431 | } |
e3688bd6 | 2432 | |
7d2df051 | 2433 | int refs_for_each_reflog(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
e3688bd6 | 2434 | { |
e3688bd6 | 2435 | struct ref_iterator *iter; |
4a6067cd | 2436 | struct do_for_each_ref_help hp = { fn, cb_data }; |
e3688bd6 DT |
2437 | |
2438 | iter = refs->be->reflog_iterator_begin(refs); | |
2439 | ||
4a6067cd SB |
2440 | return do_for_each_repo_ref_iterator(the_repository, iter, |
2441 | do_for_each_ref_helper, &hp); | |
e3688bd6 DT |
2442 | } |
2443 | ||
7d2df051 | 2444 | int for_each_reflog(each_ref_fn fn, void *cb_data) |
e3688bd6 | 2445 | { |
23a3f0cb | 2446 | return refs_for_each_reflog(get_main_ref_store(the_repository), fn, cb_data); |
7d2df051 | 2447 | } |
e3688bd6 | 2448 | |
7d2df051 NTND |
2449 | int refs_for_each_reflog_ent_reverse(struct ref_store *refs, |
2450 | const char *refname, | |
2451 | each_reflog_ent_fn fn, | |
2452 | void *cb_data) | |
2453 | { | |
e3688bd6 DT |
2454 | return refs->be->for_each_reflog_ent_reverse(refs, refname, |
2455 | fn, cb_data); | |
2456 | } | |
2457 | ||
7d2df051 NTND |
2458 | int for_each_reflog_ent_reverse(const char *refname, each_reflog_ent_fn fn, |
2459 | void *cb_data) | |
2460 | { | |
23a3f0cb | 2461 | return refs_for_each_reflog_ent_reverse(get_main_ref_store(the_repository), |
7d2df051 NTND |
2462 | refname, fn, cb_data); |
2463 | } | |
2464 | ||
2465 | int refs_for_each_reflog_ent(struct ref_store *refs, const char *refname, | |
2466 | each_reflog_ent_fn fn, void *cb_data) | |
2467 | { | |
2468 | return refs->be->for_each_reflog_ent(refs, refname, fn, cb_data); | |
2469 | } | |
2470 | ||
e3688bd6 DT |
2471 | int for_each_reflog_ent(const char *refname, each_reflog_ent_fn fn, |
2472 | void *cb_data) | |
2473 | { | |
23a3f0cb | 2474 | return refs_for_each_reflog_ent(get_main_ref_store(the_repository), refname, |
7d2df051 NTND |
2475 | fn, cb_data); |
2476 | } | |
e3688bd6 | 2477 | |
7d2df051 NTND |
2478 | int refs_reflog_exists(struct ref_store *refs, const char *refname) |
2479 | { | |
2480 | return refs->be->reflog_exists(refs, refname); | |
e3688bd6 DT |
2481 | } |
2482 | ||
2483 | int reflog_exists(const char *refname) | |
2484 | { | |
23a3f0cb | 2485 | return refs_reflog_exists(get_main_ref_store(the_repository), refname); |
7d2df051 | 2486 | } |
e3688bd6 | 2487 | |
7d2df051 | 2488 | int refs_create_reflog(struct ref_store *refs, const char *refname, |
7b089120 | 2489 | struct strbuf *err) |
7d2df051 | 2490 | { |
7b089120 | 2491 | return refs->be->create_reflog(refs, refname, err); |
e3688bd6 DT |
2492 | } |
2493 | ||
7b089120 | 2494 | int safe_create_reflog(const char *refname, struct strbuf *err) |
e3688bd6 | 2495 | { |
23a3f0cb | 2496 | return refs_create_reflog(get_main_ref_store(the_repository), refname, |
7b089120 | 2497 | err); |
7d2df051 | 2498 | } |
e3688bd6 | 2499 | |
7d2df051 NTND |
2500 | int refs_delete_reflog(struct ref_store *refs, const char *refname) |
2501 | { | |
2502 | return refs->be->delete_reflog(refs, refname); | |
e3688bd6 DT |
2503 | } |
2504 | ||
2505 | int delete_reflog(const char *refname) | |
2506 | { | |
23a3f0cb | 2507 | return refs_delete_reflog(get_main_ref_store(the_repository), refname); |
7d2df051 | 2508 | } |
e3688bd6 | 2509 | |
7d2df051 | 2510 | int refs_reflog_expire(struct ref_store *refs, |
cc40b5ce | 2511 | const char *refname, |
7d2df051 NTND |
2512 | unsigned int flags, |
2513 | reflog_expiry_prepare_fn prepare_fn, | |
2514 | reflog_expiry_should_prune_fn should_prune_fn, | |
2515 | reflog_expiry_cleanup_fn cleanup_fn, | |
2516 | void *policy_cb_data) | |
2517 | { | |
cc40b5ce | 2518 | return refs->be->reflog_expire(refs, refname, flags, |
7d2df051 NTND |
2519 | prepare_fn, should_prune_fn, |
2520 | cleanup_fn, policy_cb_data); | |
e3688bd6 DT |
2521 | } |
2522 | ||
cc40b5ce | 2523 | int reflog_expire(const char *refname, |
e3688bd6 DT |
2524 | unsigned int flags, |
2525 | reflog_expiry_prepare_fn prepare_fn, | |
2526 | reflog_expiry_should_prune_fn should_prune_fn, | |
2527 | reflog_expiry_cleanup_fn cleanup_fn, | |
2528 | void *policy_cb_data) | |
2529 | { | |
23a3f0cb | 2530 | return refs_reflog_expire(get_main_ref_store(the_repository), |
cc40b5ce | 2531 | refname, flags, |
7d2df051 NTND |
2532 | prepare_fn, should_prune_fn, |
2533 | cleanup_fn, policy_cb_data); | |
e3688bd6 | 2534 | } |
fc681463 DT |
2535 | |
2536 | int initial_ref_transaction_commit(struct ref_transaction *transaction, | |
2537 | struct strbuf *err) | |
2538 | { | |
c0fe4e8b | 2539 | struct ref_store *refs = transaction->ref_store; |
fc681463 DT |
2540 | |
2541 | return refs->be->initial_transaction_commit(refs, transaction, err); | |
2542 | } | |
a27dcf89 | 2543 | |
4f2ba2d0 PS |
2544 | void ref_transaction_for_each_queued_update(struct ref_transaction *transaction, |
2545 | ref_transaction_for_each_queued_update_fn cb, | |
2546 | void *cb_data) | |
2547 | { | |
2548 | int i; | |
2549 | ||
2550 | for (i = 0; i < transaction->nr; i++) { | |
2551 | struct ref_update *update = transaction->updates[i]; | |
2552 | ||
2553 | cb(update->refname, | |
2554 | (update->flags & REF_HAVE_OLD) ? &update->old_oid : NULL, | |
2555 | (update->flags & REF_HAVE_NEW) ? &update->new_oid : NULL, | |
2556 | cb_data); | |
2557 | } | |
2558 | } | |
2559 | ||
523fa69c | 2560 | int refs_delete_refs(struct ref_store *refs, const char *logmsg, |
64da4199 | 2561 | struct string_list *refnames, unsigned int flags) |
a27dcf89 | 2562 | { |
523fa69c JH |
2563 | char *msg; |
2564 | int retval; | |
2565 | ||
2566 | msg = normalize_reflog_message(logmsg); | |
2567 | retval = refs->be->delete_refs(refs, msg, refnames, flags); | |
2568 | free(msg); | |
2569 | return retval; | |
a27dcf89 | 2570 | } |
9b6b40d9 | 2571 | |
64da4199 MH |
2572 | int delete_refs(const char *msg, struct string_list *refnames, |
2573 | unsigned int flags) | |
9b6b40d9 | 2574 | { |
23a3f0cb | 2575 | return refs_delete_refs(get_main_ref_store(the_repository), msg, refnames, flags); |
7d2df051 | 2576 | } |
9b6b40d9 | 2577 | |
7d2df051 NTND |
2578 | int refs_rename_ref(struct ref_store *refs, const char *oldref, |
2579 | const char *newref, const char *logmsg) | |
2580 | { | |
523fa69c JH |
2581 | char *msg; |
2582 | int retval; | |
2583 | ||
2584 | msg = normalize_reflog_message(logmsg); | |
2585 | retval = refs->be->rename_ref(refs, oldref, newref, msg); | |
2586 | free(msg); | |
2587 | return retval; | |
9b6b40d9 | 2588 | } |
7d2df051 NTND |
2589 | |
2590 | int rename_ref(const char *oldref, const char *newref, const char *logmsg) | |
2591 | { | |
23a3f0cb | 2592 | return refs_rename_ref(get_main_ref_store(the_repository), oldref, newref, logmsg); |
7d2df051 | 2593 | } |
52d59cc6 SD |
2594 | |
2595 | int refs_copy_existing_ref(struct ref_store *refs, const char *oldref, | |
2596 | const char *newref, const char *logmsg) | |
2597 | { | |
523fa69c JH |
2598 | char *msg; |
2599 | int retval; | |
2600 | ||
2601 | msg = normalize_reflog_message(logmsg); | |
2602 | retval = refs->be->copy_ref(refs, oldref, newref, msg); | |
2603 | free(msg); | |
2604 | return retval; | |
52d59cc6 SD |
2605 | } |
2606 | ||
2607 | int copy_existing_ref(const char *oldref, const char *newref, const char *logmsg) | |
2608 | { | |
23a3f0cb | 2609 | return refs_copy_existing_ref(get_main_ref_store(the_repository), oldref, newref, logmsg); |
52d59cc6 | 2610 | } |