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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" |
cf0adba7 JH |
12 | #include "object.h" |
13 | #include "tag.h" | |
5d0bc90e | 14 | #include "submodule.h" |
17eff96b | 15 | #include "worktree.h" |
23a3f0cb | 16 | #include "repository.h" |
3581d793 | 17 | |
3dce444f RS |
18 | /* |
19 | * List of all available backends | |
20 | */ | |
21 | static struct ref_storage_be *refs_backends = &refs_be_files; | |
22 | ||
23 | static struct ref_storage_be *find_ref_storage_backend(const char *name) | |
24 | { | |
25 | struct ref_storage_be *be; | |
26 | for (be = refs_backends; be; be = be->next) | |
27 | if (!strcmp(be->name, name)) | |
28 | return be; | |
29 | return NULL; | |
30 | } | |
31 | ||
32 | int ref_storage_backend_exists(const char *name) | |
33 | { | |
34 | return find_ref_storage_backend(name) != NULL; | |
35 | } | |
36 | ||
bc5fd6d3 | 37 | /* |
dde8a902 DT |
38 | * How to handle various characters in refnames: |
39 | * 0: An acceptable character for refs | |
5e650228 JH |
40 | * 1: End-of-component |
41 | * 2: ., look for a preceding . to reject .. in refs | |
42 | * 3: {, look for a preceding @ to reject @{ in refs | |
53a8555e | 43 | * 4: A bad character: ASCII control characters, and |
cd377f45 JK |
44 | * ":", "?", "[", "\", "^", "~", SP, or TAB |
45 | * 5: *, reject unless REFNAME_REFSPEC_PATTERN is set | |
dde8a902 DT |
46 | */ |
47 | static unsigned char refname_disposition[256] = { | |
5e650228 JH |
48 | 1, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, |
49 | 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, | |
cd377f45 | 50 | 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5, 0, 0, 0, 2, 1, |
5e650228 | 51 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0, 0, 0, 4, |
dde8a902 | 52 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
5e650228 JH |
53 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 4, 0, 4, 0, |
54 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
55 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 4, 4 | |
dde8a902 DT |
56 | }; |
57 | ||
58 | /* | |
59 | * Try to read one refname component from the front of refname. | |
60 | * Return the length of the component found, or -1 if the component is | |
61 | * not legal. It is legal if it is something reasonable to have under | |
62 | * ".git/refs/"; We do not like it if: | |
bc5fd6d3 MH |
63 | * |
64 | * - any path component of it begins with ".", or | |
65 | * - it has double dots "..", or | |
53a8555e | 66 | * - it has ASCII control characters, or |
cd377f45 JK |
67 | * - it has ":", "?", "[", "\", "^", "~", SP, or TAB anywhere, or |
68 | * - it has "*" anywhere unless REFNAME_REFSPEC_PATTERN is set, or | |
53a8555e JK |
69 | * - it ends with a "/", or |
70 | * - it ends with ".lock", or | |
71 | * - it contains a "@{" portion | |
bc5fd6d3 | 72 | */ |
cd377f45 | 73 | static int check_refname_component(const char *refname, int *flags) |
bc5fd6d3 MH |
74 | { |
75 | const char *cp; | |
76 | char last = '\0'; | |
77 | ||
78 | for (cp = refname; ; cp++) { | |
dde8a902 DT |
79 | int ch = *cp & 255; |
80 | unsigned char disp = refname_disposition[ch]; | |
81 | switch (disp) { | |
5e650228 | 82 | case 1: |
dde8a902 | 83 | goto out; |
5e650228 | 84 | case 2: |
dde8a902 DT |
85 | if (last == '.') |
86 | return -1; /* Refname contains "..". */ | |
87 | break; | |
5e650228 | 88 | case 3: |
dde8a902 DT |
89 | if (last == '@') |
90 | return -1; /* Refname contains "@{". */ | |
bc5fd6d3 | 91 | break; |
5e650228 | 92 | case 4: |
dde8a902 | 93 | return -1; |
cd377f45 JK |
94 | case 5: |
95 | if (!(*flags & REFNAME_REFSPEC_PATTERN)) | |
96 | return -1; /* refspec can't be a pattern */ | |
97 | ||
98 | /* | |
99 | * Unset the pattern flag so that we only accept | |
100 | * a single asterisk for one side of refspec. | |
101 | */ | |
102 | *flags &= ~ REFNAME_REFSPEC_PATTERN; | |
103 | break; | |
dde8a902 | 104 | } |
bc5fd6d3 MH |
105 | last = ch; |
106 | } | |
dde8a902 | 107 | out: |
bc5fd6d3 | 108 | if (cp == refname) |
dac529e4 | 109 | return 0; /* Component has zero length. */ |
f3cc52d8 JN |
110 | if (refname[0] == '.') |
111 | return -1; /* Component starts with '.'. */ | |
7108ad23 MH |
112 | if (cp - refname >= LOCK_SUFFIX_LEN && |
113 | !memcmp(cp - LOCK_SUFFIX_LEN, LOCK_SUFFIX, LOCK_SUFFIX_LEN)) | |
bc5fd6d3 MH |
114 | return -1; /* Refname ends with ".lock". */ |
115 | return cp - refname; | |
116 | } | |
117 | ||
5e650228 | 118 | int check_refname_format(const char *refname, int flags) |
bc5fd6d3 MH |
119 | { |
120 | int component_len, component_count = 0; | |
121 | ||
9ba89f48 FC |
122 | if (!strcmp(refname, "@")) |
123 | /* Refname is a single character '@'. */ | |
124 | return -1; | |
125 | ||
bc5fd6d3 MH |
126 | while (1) { |
127 | /* We are at the start of a path component. */ | |
cd377f45 JK |
128 | component_len = check_refname_component(refname, &flags); |
129 | if (component_len <= 0) | |
130 | return -1; | |
131 | ||
bc5fd6d3 MH |
132 | component_count++; |
133 | if (refname[component_len] == '\0') | |
134 | break; | |
135 | /* Skip to next component. */ | |
136 | refname += component_len + 1; | |
137 | } | |
138 | ||
139 | if (refname[component_len - 1] == '.') | |
140 | return -1; /* Refname ends with '.'. */ | |
141 | if (!(flags & REFNAME_ALLOW_ONELEVEL) && component_count < 2) | |
142 | return -1; /* Refname has only one component. */ | |
143 | return 0; | |
144 | } | |
145 | ||
4cb77009 | 146 | int refname_is_safe(const char *refname) |
d0f810f0 | 147 | { |
39950fef MH |
148 | const char *rest; |
149 | ||
150 | if (skip_prefix(refname, "refs/", &rest)) { | |
d0f810f0 RS |
151 | char *buf; |
152 | int result; | |
e40f3557 MH |
153 | size_t restlen = strlen(rest); |
154 | ||
155 | /* rest must not be empty, or start or end with "/" */ | |
156 | if (!restlen || *rest == '/' || rest[restlen - 1] == '/') | |
157 | return 0; | |
d0f810f0 | 158 | |
d0f810f0 RS |
159 | /* |
160 | * Does the refname try to escape refs/? | |
161 | * For example: refs/foo/../bar is safe but refs/foo/../../bar | |
162 | * is not. | |
163 | */ | |
e40f3557 MH |
164 | buf = xmallocz(restlen); |
165 | result = !normalize_path_copy(buf, rest) && !strcmp(buf, rest); | |
d0f810f0 RS |
166 | free(buf); |
167 | return result; | |
168 | } | |
35db25c6 MH |
169 | |
170 | do { | |
d0f810f0 RS |
171 | if (!isupper(*refname) && *refname != '_') |
172 | return 0; | |
173 | refname++; | |
35db25c6 | 174 | } while (*refname); |
d0f810f0 RS |
175 | return 1; |
176 | } | |
177 | ||
67be7c5a MH |
178 | /* |
179 | * Return true if refname, which has the specified oid and flags, can | |
180 | * be resolved to an object in the database. If the referred-to object | |
181 | * does not exist, emit a warning and return false. | |
182 | */ | |
183 | int ref_resolves_to_object(const char *refname, | |
184 | const struct object_id *oid, | |
185 | unsigned int flags) | |
186 | { | |
187 | if (flags & REF_ISBROKEN) | |
188 | return 0; | |
189 | if (!has_sha1_file(oid->hash)) { | |
190 | error("%s does not point to a valid object!", refname); | |
191 | return 0; | |
192 | } | |
193 | return 1; | |
194 | } | |
195 | ||
7d2df051 NTND |
196 | char *refs_resolve_refdup(struct ref_store *refs, |
197 | const char *refname, int resolve_flags, | |
0f2dc722 | 198 | struct object_id *oid, int *flags) |
7d2df051 NTND |
199 | { |
200 | const char *result; | |
201 | ||
202 | result = refs_resolve_ref_unsafe(refs, refname, resolve_flags, | |
49e61479 | 203 | oid, flags); |
7d2df051 NTND |
204 | return xstrdup_or_null(result); |
205 | } | |
206 | ||
7bd9bcf3 | 207 | char *resolve_refdup(const char *refname, int resolve_flags, |
0f2dc722 | 208 | struct object_id *oid, int *flags) |
e1e22e37 | 209 | { |
23a3f0cb | 210 | return refs_resolve_refdup(get_main_ref_store(the_repository), |
7d2df051 | 211 | refname, resolve_flags, |
0f2dc722 | 212 | oid, flags); |
cddc4258 MH |
213 | } |
214 | ||
7bd9bcf3 MH |
215 | /* The argument to filter_refs */ |
216 | struct ref_filter { | |
217 | const char *pattern; | |
218 | each_ref_fn *fn; | |
219 | void *cb_data; | |
220 | }; | |
432ad41e | 221 | |
7d2df051 | 222 | int refs_read_ref_full(struct ref_store *refs, const char *refname, |
34c290a6 | 223 | int resolve_flags, struct object_id *oid, int *flags) |
732134ed | 224 | { |
49e61479 | 225 | if (refs_resolve_ref_unsafe(refs, refname, resolve_flags, oid, flags)) |
7bd9bcf3 MH |
226 | return 0; |
227 | return -1; | |
732134ed MH |
228 | } |
229 | ||
34c290a6 | 230 | int read_ref_full(const char *refname, int resolve_flags, struct object_id *oid, int *flags) |
7d2df051 | 231 | { |
23a3f0cb | 232 | return refs_read_ref_full(get_main_ref_store(the_repository), refname, |
34c290a6 | 233 | resolve_flags, oid, flags); |
7d2df051 NTND |
234 | } |
235 | ||
34c290a6 | 236 | int read_ref(const char *refname, struct object_id *oid) |
cddc4258 | 237 | { |
34c290a6 | 238 | return read_ref_full(refname, RESOLVE_REF_READING, oid, NULL); |
c774aab9 JP |
239 | } |
240 | ||
7bd9bcf3 | 241 | int ref_exists(const char *refname) |
bc5fd6d3 | 242 | { |
744c040b | 243 | return !!resolve_ref_unsafe(refname, RESOLVE_REF_READING, NULL, NULL); |
bc5fd6d3 MH |
244 | } |
245 | ||
65516f58 RA |
246 | static int match_ref_pattern(const char *refname, |
247 | const struct string_list_item *item) | |
248 | { | |
249 | int matched = 0; | |
250 | if (item->util == NULL) { | |
251 | if (!wildmatch(item->string, refname, 0)) | |
252 | matched = 1; | |
253 | } else { | |
254 | const char *rest; | |
255 | if (skip_prefix(refname, item->string, &rest) && | |
256 | (!*rest || *rest == '/')) | |
257 | matched = 1; | |
258 | } | |
259 | return matched; | |
260 | } | |
261 | ||
262 | int ref_filter_match(const char *refname, | |
263 | const struct string_list *include_patterns, | |
264 | const struct string_list *exclude_patterns) | |
265 | { | |
266 | struct string_list_item *item; | |
267 | ||
268 | if (exclude_patterns && exclude_patterns->nr) { | |
269 | for_each_string_list_item(item, exclude_patterns) { | |
270 | if (match_ref_pattern(refname, item)) | |
271 | return 0; | |
272 | } | |
273 | } | |
274 | ||
275 | if (include_patterns && include_patterns->nr) { | |
276 | int found = 0; | |
277 | for_each_string_list_item(item, include_patterns) { | |
278 | if (match_ref_pattern(refname, item)) { | |
279 | found = 1; | |
280 | break; | |
281 | } | |
282 | } | |
283 | ||
284 | if (!found) | |
285 | return 0; | |
286 | } | |
287 | return 1; | |
288 | } | |
289 | ||
7bd9bcf3 MH |
290 | static int filter_refs(const char *refname, const struct object_id *oid, |
291 | int flags, void *data) | |
432ad41e | 292 | { |
7bd9bcf3 MH |
293 | struct ref_filter *filter = (struct ref_filter *)data; |
294 | ||
55d34269 | 295 | if (wildmatch(filter->pattern, refname, 0)) |
7bd9bcf3 MH |
296 | return 0; |
297 | return filter->fn(refname, oid, flags, filter->cb_data); | |
432ad41e MH |
298 | } |
299 | ||
ac2ed0d7 | 300 | enum peel_status peel_object(const struct object_id *name, struct object_id *oid) |
c774aab9 | 301 | { |
ac2ed0d7 | 302 | struct object *o = lookup_unknown_object(name->hash); |
c774aab9 | 303 | |
7bd9bcf3 | 304 | if (o->type == OBJ_NONE) { |
abef9020 | 305 | int type = oid_object_info(name, NULL); |
7bd9bcf3 MH |
306 | if (type < 0 || !object_as_type(o, type, 0)) |
307 | return PEEL_INVALID; | |
308 | } | |
bc5fd6d3 | 309 | |
7bd9bcf3 MH |
310 | if (o->type != OBJ_TAG) |
311 | return PEEL_NON_TAG; | |
e1980c9d | 312 | |
7bd9bcf3 MH |
313 | o = deref_tag_noverify(o); |
314 | if (!o) | |
315 | return PEEL_INVALID; | |
316 | ||
ac2ed0d7 | 317 | oidcpy(oid, &o->oid); |
7bd9bcf3 | 318 | return PEEL_PEELED; |
e1980c9d JH |
319 | } |
320 | ||
7bd9bcf3 MH |
321 | struct warn_if_dangling_data { |
322 | FILE *fp; | |
323 | const char *refname; | |
324 | const struct string_list *refnames; | |
325 | const char *msg_fmt; | |
326 | }; | |
bc5fd6d3 | 327 | |
7bd9bcf3 MH |
328 | static int warn_if_dangling_symref(const char *refname, const struct object_id *oid, |
329 | int flags, void *cb_data) | |
330 | { | |
331 | struct warn_if_dangling_data *d = cb_data; | |
332 | const char *resolves_to; | |
bc5fd6d3 | 333 | |
7bd9bcf3 MH |
334 | if (!(flags & REF_ISSYMREF)) |
335 | return 0; | |
bc5fd6d3 | 336 | |
744c040b | 337 | resolves_to = resolve_ref_unsafe(refname, 0, NULL, NULL); |
7bd9bcf3 MH |
338 | if (!resolves_to |
339 | || (d->refname | |
340 | ? strcmp(resolves_to, d->refname) | |
341 | : !string_list_has_string(d->refnames, resolves_to))) { | |
342 | return 0; | |
343 | } | |
bc5fd6d3 | 344 | |
7bd9bcf3 MH |
345 | fprintf(d->fp, d->msg_fmt, refname); |
346 | fputc('\n', d->fp); | |
347 | return 0; | |
bc5fd6d3 MH |
348 | } |
349 | ||
7bd9bcf3 | 350 | void warn_dangling_symref(FILE *fp, const char *msg_fmt, const char *refname) |
f348ac92 | 351 | { |
7bd9bcf3 MH |
352 | struct warn_if_dangling_data data; |
353 | ||
354 | data.fp = fp; | |
355 | data.refname = refname; | |
356 | data.refnames = NULL; | |
357 | data.msg_fmt = msg_fmt; | |
358 | for_each_rawref(warn_if_dangling_symref, &data); | |
f348ac92 MH |
359 | } |
360 | ||
7bd9bcf3 | 361 | void warn_dangling_symrefs(FILE *fp, const char *msg_fmt, const struct string_list *refnames) |
432ad41e | 362 | { |
7bd9bcf3 | 363 | struct warn_if_dangling_data data; |
432ad41e | 364 | |
7bd9bcf3 MH |
365 | data.fp = fp; |
366 | data.refname = NULL; | |
367 | data.refnames = refnames; | |
368 | data.msg_fmt = msg_fmt; | |
369 | for_each_rawref(warn_if_dangling_symref, &data); | |
432ad41e MH |
370 | } |
371 | ||
7d2df051 NTND |
372 | int refs_for_each_tag_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
373 | { | |
374 | return refs_for_each_ref_in(refs, "refs/tags/", fn, cb_data); | |
375 | } | |
376 | ||
7bd9bcf3 | 377 | int for_each_tag_ref(each_ref_fn fn, void *cb_data) |
432ad41e | 378 | { |
23a3f0cb | 379 | return refs_for_each_tag_ref(get_main_ref_store(the_repository), fn, cb_data); |
432ad41e MH |
380 | } |
381 | ||
7d2df051 NTND |
382 | int refs_for_each_branch_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
383 | { | |
384 | return refs_for_each_ref_in(refs, "refs/heads/", fn, cb_data); | |
432ad41e MH |
385 | } |
386 | ||
7bd9bcf3 | 387 | int for_each_branch_ref(each_ref_fn fn, void *cb_data) |
432ad41e | 388 | { |
23a3f0cb | 389 | return refs_for_each_branch_ref(get_main_ref_store(the_repository), fn, cb_data); |
432ad41e MH |
390 | } |
391 | ||
7d2df051 NTND |
392 | int refs_for_each_remote_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
393 | { | |
394 | return refs_for_each_ref_in(refs, "refs/remotes/", fn, cb_data); | |
202a56a9 | 395 | } |
432ad41e | 396 | |
7bd9bcf3 | 397 | int for_each_remote_ref(each_ref_fn fn, void *cb_data) |
e9c4c111 | 398 | { |
23a3f0cb | 399 | return refs_for_each_remote_ref(get_main_ref_store(the_repository), fn, cb_data); |
202a56a9 MH |
400 | } |
401 | ||
7bd9bcf3 MH |
402 | int head_ref_namespaced(each_ref_fn fn, void *cb_data) |
403 | { | |
404 | struct strbuf buf = STRBUF_INIT; | |
405 | int ret = 0; | |
406 | struct object_id oid; | |
407 | int flag; | |
c774aab9 | 408 | |
7bd9bcf3 | 409 | strbuf_addf(&buf, "%sHEAD", get_git_namespace()); |
34c290a6 | 410 | if (!read_ref_full(buf.buf, RESOLVE_REF_READING, &oid, &flag)) |
7bd9bcf3 MH |
411 | ret = fn(buf.buf, &oid, flag, cb_data); |
412 | strbuf_release(&buf); | |
c774aab9 | 413 | |
7bd9bcf3 | 414 | return ret; |
e9c4c111 | 415 | } |
c774aab9 | 416 | |
65516f58 RA |
417 | void normalize_glob_ref(struct string_list_item *item, const char *prefix, |
418 | const char *pattern) | |
419 | { | |
420 | struct strbuf normalized_pattern = STRBUF_INIT; | |
421 | ||
422 | if (*pattern == '/') | |
423 | BUG("pattern must not start with '/'"); | |
424 | ||
425 | if (prefix) { | |
426 | strbuf_addstr(&normalized_pattern, prefix); | |
427 | } | |
428 | else if (!starts_with(pattern, "refs/")) | |
429 | strbuf_addstr(&normalized_pattern, "refs/"); | |
430 | strbuf_addstr(&normalized_pattern, pattern); | |
431 | strbuf_strip_suffix(&normalized_pattern, "/"); | |
432 | ||
433 | item->string = strbuf_detach(&normalized_pattern, NULL); | |
434 | item->util = has_glob_specials(pattern) ? NULL : item->string; | |
435 | strbuf_release(&normalized_pattern); | |
436 | } | |
437 | ||
7bd9bcf3 MH |
438 | int for_each_glob_ref_in(each_ref_fn fn, const char *pattern, |
439 | const char *prefix, void *cb_data) | |
662428f4 | 440 | { |
7bd9bcf3 MH |
441 | struct strbuf real_pattern = STRBUF_INIT; |
442 | struct ref_filter filter; | |
443 | int ret; | |
d08bae7e | 444 | |
59556548 | 445 | if (!prefix && !starts_with(pattern, "refs/")) |
d08bae7e | 446 | strbuf_addstr(&real_pattern, "refs/"); |
b09fe971 IL |
447 | else if (prefix) |
448 | strbuf_addstr(&real_pattern, prefix); | |
d08bae7e IL |
449 | strbuf_addstr(&real_pattern, pattern); |
450 | ||
894a9d33 | 451 | if (!has_glob_specials(pattern)) { |
9517e6b8 | 452 | /* Append implied '/' '*' if not present. */ |
00b6c178 | 453 | strbuf_complete(&real_pattern, '/'); |
d08bae7e IL |
454 | /* No need to check for '*', there is none. */ |
455 | strbuf_addch(&real_pattern, '*'); | |
456 | } | |
457 | ||
458 | filter.pattern = real_pattern.buf; | |
459 | filter.fn = fn; | |
460 | filter.cb_data = cb_data; | |
461 | ret = for_each_ref(filter_refs, &filter); | |
462 | ||
463 | strbuf_release(&real_pattern); | |
464 | return ret; | |
465 | } | |
466 | ||
b09fe971 IL |
467 | int for_each_glob_ref(each_ref_fn fn, const char *pattern, void *cb_data) |
468 | { | |
469 | return for_each_glob_ref_in(fn, pattern, NULL, cb_data); | |
470 | } | |
471 | ||
4577e483 | 472 | const char *prettify_refname(const char *name) |
a9c37a72 | 473 | { |
3e5b36c6 SG |
474 | if (skip_prefix(name, "refs/heads/", &name) || |
475 | skip_prefix(name, "refs/tags/", &name) || | |
476 | skip_prefix(name, "refs/remotes/", &name)) | |
477 | ; /* nothing */ | |
478 | return name; | |
a9c37a72 DB |
479 | } |
480 | ||
54457fe5 | 481 | static const char *ref_rev_parse_rules[] = { |
79803322 SP |
482 | "%.*s", |
483 | "refs/%.*s", | |
484 | "refs/tags/%.*s", | |
485 | "refs/heads/%.*s", | |
486 | "refs/remotes/%.*s", | |
487 | "refs/remotes/%.*s/HEAD", | |
488 | NULL | |
489 | }; | |
490 | ||
54457fe5 | 491 | int refname_match(const char *abbrev_name, const char *full_name) |
79803322 SP |
492 | { |
493 | const char **p; | |
494 | const int abbrev_name_len = strlen(abbrev_name); | |
495 | ||
54457fe5 | 496 | for (p = ref_rev_parse_rules; *p; p++) { |
79803322 SP |
497 | if (!strcmp(full_name, mkpath(*p, abbrev_name_len, abbrev_name))) { |
498 | return 1; | |
499 | } | |
500 | } | |
501 | ||
502 | return 0; | |
503 | } | |
504 | ||
ff74f7f1 JH |
505 | /* |
506 | * *string and *len will only be substituted, and *string returned (for | |
507 | * later free()ing) if the string passed in is a magic short-hand form | |
508 | * to name a branch. | |
509 | */ | |
510 | static char *substitute_branch_name(const char **string, int *len) | |
511 | { | |
512 | struct strbuf buf = STRBUF_INIT; | |
0e9f62da | 513 | int ret = interpret_branch_name(*string, *len, &buf, 0); |
ff74f7f1 JH |
514 | |
515 | if (ret == *len) { | |
516 | size_t size; | |
517 | *string = strbuf_detach(&buf, &size); | |
518 | *len = size; | |
519 | return (char *)*string; | |
520 | } | |
521 | ||
522 | return NULL; | |
523 | } | |
524 | ||
cca5fa64 | 525 | int dwim_ref(const char *str, int len, struct object_id *oid, char **ref) |
ff74f7f1 JH |
526 | { |
527 | char *last_branch = substitute_branch_name(&str, &len); | |
cca5fa64 | 528 | int refs_found = expand_ref(str, len, oid, ref); |
41da7111 NTND |
529 | free(last_branch); |
530 | return refs_found; | |
531 | } | |
532 | ||
cca5fa64 | 533 | int expand_ref(const char *str, int len, struct object_id *oid, char **ref) |
41da7111 | 534 | { |
ff74f7f1 JH |
535 | const char **p, *r; |
536 | int refs_found = 0; | |
6cd4a898 | 537 | struct strbuf fullref = STRBUF_INIT; |
ff74f7f1 JH |
538 | |
539 | *ref = NULL; | |
540 | for (p = ref_rev_parse_rules; *p; p++) { | |
cca5fa64 | 541 | struct object_id oid_from_ref; |
542 | struct object_id *this_result; | |
ff74f7f1 JH |
543 | int flag; |
544 | ||
cca5fa64 | 545 | this_result = refs_found ? &oid_from_ref : oid; |
6cd4a898 JK |
546 | strbuf_reset(&fullref); |
547 | strbuf_addf(&fullref, *p, len, str); | |
548 | r = resolve_ref_unsafe(fullref.buf, RESOLVE_REF_READING, | |
49e61479 | 549 | this_result, &flag); |
ff74f7f1 JH |
550 | if (r) { |
551 | if (!refs_found++) | |
552 | *ref = xstrdup(r); | |
553 | if (!warn_ambiguous_refs) | |
554 | break; | |
6cd4a898 JK |
555 | } else if ((flag & REF_ISSYMREF) && strcmp(fullref.buf, "HEAD")) { |
556 | warning("ignoring dangling symref %s.", fullref.buf); | |
557 | } else if ((flag & REF_ISBROKEN) && strchr(fullref.buf, '/')) { | |
558 | warning("ignoring broken ref %s.", fullref.buf); | |
55956350 | 559 | } |
ff74f7f1 | 560 | } |
6cd4a898 | 561 | strbuf_release(&fullref); |
ff74f7f1 JH |
562 | return refs_found; |
563 | } | |
564 | ||
334dc52f | 565 | int dwim_log(const char *str, int len, struct object_id *oid, char **log) |
ff74f7f1 JH |
566 | { |
567 | char *last_branch = substitute_branch_name(&str, &len); | |
568 | const char **p; | |
569 | int logs_found = 0; | |
6cd4a898 | 570 | struct strbuf path = STRBUF_INIT; |
ff74f7f1 JH |
571 | |
572 | *log = NULL; | |
573 | for (p = ref_rev_parse_rules; *p; p++) { | |
334dc52f | 574 | struct object_id hash; |
ff74f7f1 JH |
575 | const char *ref, *it; |
576 | ||
6cd4a898 JK |
577 | strbuf_reset(&path); |
578 | strbuf_addf(&path, *p, len, str); | |
579 | ref = resolve_ref_unsafe(path.buf, RESOLVE_REF_READING, | |
49e61479 | 580 | &hash, NULL); |
ff74f7f1 JH |
581 | if (!ref) |
582 | continue; | |
6cd4a898 JK |
583 | if (reflog_exists(path.buf)) |
584 | it = path.buf; | |
585 | else if (strcmp(ref, path.buf) && reflog_exists(ref)) | |
ff74f7f1 JH |
586 | it = ref; |
587 | else | |
588 | continue; | |
589 | if (!logs_found++) { | |
590 | *log = xstrdup(it); | |
334dc52f | 591 | oidcpy(oid, &hash); |
ff74f7f1 | 592 | } |
7bd9bcf3 MH |
593 | if (!warn_ambiguous_refs) |
594 | break; | |
c0277d15 | 595 | } |
6cd4a898 | 596 | strbuf_release(&path); |
7bd9bcf3 MH |
597 | free(last_branch); |
598 | return logs_found; | |
2ddb5d17 BK |
599 | } |
600 | ||
266b1827 DT |
601 | static int is_per_worktree_ref(const char *refname) |
602 | { | |
ce414b33 DT |
603 | return !strcmp(refname, "HEAD") || |
604 | starts_with(refname, "refs/bisect/"); | |
266b1827 DT |
605 | } |
606 | ||
607 | static int is_pseudoref_syntax(const char *refname) | |
608 | { | |
609 | const char *c; | |
610 | ||
611 | for (c = refname; *c; c++) { | |
612 | if (!isupper(*c) && *c != '-' && *c != '_') | |
613 | return 0; | |
614 | } | |
615 | ||
616 | return 1; | |
617 | } | |
618 | ||
619 | enum ref_type ref_type(const char *refname) | |
620 | { | |
621 | if (is_per_worktree_ref(refname)) | |
622 | return REF_TYPE_PER_WORKTREE; | |
623 | if (is_pseudoref_syntax(refname)) | |
624 | return REF_TYPE_PSEUDOREF; | |
625 | return REF_TYPE_NORMAL; | |
626 | } | |
627 | ||
4ff0f01c MH |
628 | long get_files_ref_lock_timeout_ms(void) |
629 | { | |
630 | static int configured = 0; | |
631 | ||
632 | /* The default timeout is 100 ms: */ | |
633 | static int timeout_ms = 100; | |
634 | ||
635 | if (!configured) { | |
636 | git_config_get_int("core.filesreflocktimeout", &timeout_ms); | |
637 | configured = 1; | |
638 | } | |
639 | ||
640 | return timeout_ms; | |
641 | } | |
642 | ||
ae077771 | 643 | static int write_pseudoref(const char *pseudoref, const struct object_id *oid, |
644 | const struct object_id *old_oid, struct strbuf *err) | |
74ec19d4 DT |
645 | { |
646 | const char *filename; | |
647 | int fd; | |
648 | static struct lock_file lock; | |
649 | struct strbuf buf = STRBUF_INIT; | |
650 | int ret = -1; | |
651 | ||
6ee18216 | 652 | if (!oid) |
653 | return 0; | |
654 | ||
ae077771 | 655 | strbuf_addf(&buf, "%s\n", oid_to_hex(oid)); |
74ec19d4 DT |
656 | |
657 | filename = git_path("%s", pseudoref); | |
4ff0f01c MH |
658 | fd = hold_lock_file_for_update_timeout(&lock, filename, |
659 | LOCK_DIE_ON_ERROR, | |
660 | get_files_ref_lock_timeout_ms()); | |
74ec19d4 | 661 | if (fd < 0) { |
0568c8e9 | 662 | strbuf_addf(err, "could not open '%s' for writing: %s", |
74ec19d4 | 663 | filename, strerror(errno)); |
aeb014f6 | 664 | goto done; |
74ec19d4 DT |
665 | } |
666 | ||
ae077771 | 667 | if (old_oid) { |
668 | struct object_id actual_old_oid; | |
2c3aed13 | 669 | |
34c290a6 | 670 | if (read_ref(pseudoref, &actual_old_oid)) |
2c3aed13 | 671 | die("could not read ref '%s'", pseudoref); |
ae077771 | 672 | if (oidcmp(&actual_old_oid, old_oid)) { |
0568c8e9 | 673 | strbuf_addf(err, "unexpected sha1 when writing '%s'", pseudoref); |
74ec19d4 DT |
674 | rollback_lock_file(&lock); |
675 | goto done; | |
676 | } | |
677 | } | |
678 | ||
06f46f23 | 679 | if (write_in_full(fd, buf.buf, buf.len) < 0) { |
0568c8e9 | 680 | strbuf_addf(err, "could not write to '%s'", filename); |
74ec19d4 DT |
681 | rollback_lock_file(&lock); |
682 | goto done; | |
683 | } | |
684 | ||
685 | commit_lock_file(&lock); | |
686 | ret = 0; | |
687 | done: | |
688 | strbuf_release(&buf); | |
689 | return ret; | |
690 | } | |
691 | ||
2616a5e5 | 692 | static int delete_pseudoref(const char *pseudoref, const struct object_id *old_oid) |
74ec19d4 DT |
693 | { |
694 | static struct lock_file lock; | |
695 | const char *filename; | |
696 | ||
697 | filename = git_path("%s", pseudoref); | |
698 | ||
2616a5e5 | 699 | if (old_oid && !is_null_oid(old_oid)) { |
74ec19d4 | 700 | int fd; |
2616a5e5 | 701 | struct object_id actual_old_oid; |
74ec19d4 | 702 | |
4ff0f01c MH |
703 | fd = hold_lock_file_for_update_timeout( |
704 | &lock, filename, LOCK_DIE_ON_ERROR, | |
705 | get_files_ref_lock_timeout_ms()); | |
74ec19d4 DT |
706 | if (fd < 0) |
707 | die_errno(_("Could not open '%s' for writing"), filename); | |
34c290a6 | 708 | if (read_ref(pseudoref, &actual_old_oid)) |
2c3aed13 | 709 | die("could not read ref '%s'", pseudoref); |
2616a5e5 | 710 | if (oidcmp(&actual_old_oid, old_oid)) { |
74ec19d4 DT |
711 | warning("Unexpected sha1 when deleting %s", pseudoref); |
712 | rollback_lock_file(&lock); | |
713 | return -1; | |
a4c653df | 714 | } |
74ec19d4 DT |
715 | |
716 | unlink(filename); | |
717 | rollback_lock_file(&lock); | |
718 | } else { | |
719 | unlink(filename); | |
4bd18c43 | 720 | } |
a4c653df | 721 | |
4bd18c43 | 722 | return 0; |
95fc7512 | 723 | } |
d556fae2 | 724 | |
c0fe4e8b NTND |
725 | int refs_delete_ref(struct ref_store *refs, const char *msg, |
726 | const char *refname, | |
2616a5e5 | 727 | const struct object_id *old_oid, |
c0fe4e8b | 728 | unsigned int flags) |
41b625b0 | 729 | { |
7521cc46 | 730 | struct ref_transaction *transaction; |
a4c653df | 731 | struct strbuf err = STRBUF_INIT; |
8b5157e4 | 732 | |
c0fe4e8b | 733 | if (ref_type(refname) == REF_TYPE_PSEUDOREF) { |
23a3f0cb | 734 | assert(refs == get_main_ref_store(the_repository)); |
2616a5e5 | 735 | return delete_pseudoref(refname, old_oid); |
c0fe4e8b | 736 | } |
d48744d1 | 737 | |
c0fe4e8b | 738 | transaction = ref_store_transaction_begin(refs, &err); |
7521cc46 | 739 | if (!transaction || |
89f3bbdd | 740 | ref_transaction_delete(transaction, refname, old_oid, |
755b49ae | 741 | flags, msg, &err) || |
db7516ab | 742 | ref_transaction_commit(transaction, &err)) { |
7521cc46 RS |
743 | error("%s", err.buf); |
744 | ref_transaction_free(transaction); | |
745 | strbuf_release(&err); | |
c0277d15 | 746 | return 1; |
41b625b0 | 747 | } |
7bd9bcf3 MH |
748 | ref_transaction_free(transaction); |
749 | strbuf_release(&err); | |
b531394d BC |
750 | return 0; |
751 | } | |
41b625b0 | 752 | |
c0fe4e8b | 753 | int delete_ref(const char *msg, const char *refname, |
2616a5e5 | 754 | const struct object_id *old_oid, unsigned int flags) |
c0fe4e8b | 755 | { |
23a3f0cb | 756 | return refs_delete_ref(get_main_ref_store(the_repository), msg, refname, |
2616a5e5 | 757 | old_oid, flags); |
c0fe4e8b NTND |
758 | } |
759 | ||
4cb77009 | 760 | int copy_reflog_msg(char *buf, const char *msg) |
0ec29a47 JH |
761 | { |
762 | char *cp = buf; | |
763 | char c; | |
764 | int wasspace = 1; | |
8b5157e4 | 765 | |
0ec29a47 JH |
766 | *cp++ = '\t'; |
767 | while ((c = *msg++)) { | |
768 | if (wasspace && isspace(c)) | |
769 | continue; | |
770 | wasspace = isspace(c); | |
771 | if (wasspace) | |
772 | c = ' '; | |
773 | *cp++ = c; | |
a4c653df | 774 | } |
0ec29a47 JH |
775 | while (buf < cp && isspace(cp[-1])) |
776 | cp--; | |
777 | *cp++ = '\n'; | |
778 | return cp - buf; | |
779 | } | |
8b5157e4 | 780 | |
4cb77009 | 781 | int should_autocreate_reflog(const char *refname) |
4e2bef57 | 782 | { |
341fb286 CW |
783 | switch (log_all_ref_updates) { |
784 | case LOG_REFS_ALWAYS: | |
785 | return 1; | |
786 | case LOG_REFS_NORMAL: | |
787 | return starts_with(refname, "refs/heads/") || | |
788 | starts_with(refname, "refs/remotes/") || | |
789 | starts_with(refname, "refs/notes/") || | |
790 | !strcmp(refname, "HEAD"); | |
791 | default: | |
4e2bef57 | 792 | return 0; |
341fb286 | 793 | } |
4e2bef57 DT |
794 | } |
795 | ||
e7e0f26e | 796 | int is_branch(const char *refname) |
c3b0dec5 | 797 | { |
59556548 | 798 | return !strcmp(refname, "HEAD") || starts_with(refname, "refs/heads/"); |
41b625b0 NP |
799 | } |
800 | ||
4207ed28 RS |
801 | struct read_ref_at_cb { |
802 | const char *refname; | |
dddbad72 | 803 | timestamp_t at_time; |
4207ed28 RS |
804 | int cnt; |
805 | int reccnt; | |
8eb36d94 | 806 | struct object_id *oid; |
4207ed28 RS |
807 | int found_it; |
808 | ||
8eb36d94 | 809 | struct object_id ooid; |
810 | struct object_id noid; | |
4207ed28 | 811 | int tz; |
dddbad72 | 812 | timestamp_t date; |
4207ed28 | 813 | char **msg; |
dddbad72 | 814 | timestamp_t *cutoff_time; |
4207ed28 RS |
815 | int *cutoff_tz; |
816 | int *cutoff_cnt; | |
817 | }; | |
818 | ||
9461d272 | 819 | static int read_ref_at_ent(struct object_id *ooid, struct object_id *noid, |
dddbad72 | 820 | const char *email, timestamp_t timestamp, int tz, |
4207ed28 RS |
821 | const char *message, void *cb_data) |
822 | { | |
823 | struct read_ref_at_cb *cb = cb_data; | |
824 | ||
825 | cb->reccnt++; | |
826 | cb->tz = tz; | |
827 | cb->date = timestamp; | |
828 | ||
829 | if (timestamp <= cb->at_time || cb->cnt == 0) { | |
830 | if (cb->msg) | |
831 | *cb->msg = xstrdup(message); | |
832 | if (cb->cutoff_time) | |
833 | *cb->cutoff_time = timestamp; | |
834 | if (cb->cutoff_tz) | |
835 | *cb->cutoff_tz = tz; | |
836 | if (cb->cutoff_cnt) | |
837 | *cb->cutoff_cnt = cb->reccnt - 1; | |
838 | /* | |
78fb4579 | 839 | * we have not yet updated cb->[n|o]oid so they still |
4207ed28 RS |
840 | * hold the values for the previous record. |
841 | */ | |
8eb36d94 | 842 | if (!is_null_oid(&cb->ooid)) { |
843 | oidcpy(cb->oid, noid); | |
844 | if (oidcmp(&cb->ooid, noid)) | |
4207ed28 | 845 | warning("Log for ref %s has gap after %s.", |
a5481a6c | 846 | cb->refname, show_date(cb->date, cb->tz, DATE_MODE(RFC2822))); |
4207ed28 RS |
847 | } |
848 | else if (cb->date == cb->at_time) | |
8eb36d94 | 849 | oidcpy(cb->oid, noid); |
850 | else if (oidcmp(noid, cb->oid)) | |
4207ed28 RS |
851 | warning("Log for ref %s unexpectedly ended on %s.", |
852 | cb->refname, show_date(cb->date, cb->tz, | |
a5481a6c | 853 | DATE_MODE(RFC2822))); |
8eb36d94 | 854 | oidcpy(&cb->ooid, ooid); |
855 | oidcpy(&cb->noid, noid); | |
4207ed28 RS |
856 | cb->found_it = 1; |
857 | return 1; | |
858 | } | |
8eb36d94 | 859 | oidcpy(&cb->ooid, ooid); |
860 | oidcpy(&cb->noid, noid); | |
4207ed28 RS |
861 | if (cb->cnt > 0) |
862 | cb->cnt--; | |
863 | return 0; | |
864 | } | |
865 | ||
9461d272 | 866 | static int read_ref_at_ent_oldest(struct object_id *ooid, struct object_id *noid, |
dddbad72 | 867 | const char *email, timestamp_t timestamp, |
4207ed28 RS |
868 | int tz, const char *message, void *cb_data) |
869 | { | |
870 | struct read_ref_at_cb *cb = cb_data; | |
871 | ||
872 | if (cb->msg) | |
873 | *cb->msg = xstrdup(message); | |
874 | if (cb->cutoff_time) | |
875 | *cb->cutoff_time = timestamp; | |
876 | if (cb->cutoff_tz) | |
877 | *cb->cutoff_tz = tz; | |
878 | if (cb->cutoff_cnt) | |
879 | *cb->cutoff_cnt = cb->reccnt; | |
8eb36d94 | 880 | oidcpy(cb->oid, ooid); |
881 | if (is_null_oid(cb->oid)) | |
882 | oidcpy(cb->oid, noid); | |
4207ed28 RS |
883 | /* We just want the first entry */ |
884 | return 1; | |
16d7cc90 JH |
885 | } |
886 | ||
dddbad72 | 887 | int read_ref_at(const char *refname, unsigned int flags, timestamp_t at_time, int cnt, |
8eb36d94 | 888 | struct object_id *oid, char **msg, |
dddbad72 | 889 | timestamp_t *cutoff_time, int *cutoff_tz, int *cutoff_cnt) |
d556fae2 | 890 | { |
4207ed28 | 891 | struct read_ref_at_cb cb; |
d556fae2 | 892 | |
4207ed28 RS |
893 | memset(&cb, 0, sizeof(cb)); |
894 | cb.refname = refname; | |
895 | cb.at_time = at_time; | |
896 | cb.cnt = cnt; | |
897 | cb.msg = msg; | |
898 | cb.cutoff_time = cutoff_time; | |
899 | cb.cutoff_tz = cutoff_tz; | |
900 | cb.cutoff_cnt = cutoff_cnt; | |
8eb36d94 | 901 | cb.oid = oid; |
4207ed28 RS |
902 | |
903 | for_each_reflog_ent_reverse(refname, read_ref_at_ent, &cb); | |
904 | ||
c41a87dd | 905 | if (!cb.reccnt) { |
321c89bf | 906 | if (flags & GET_OID_QUIETLY) |
c41a87dd DA |
907 | exit(128); |
908 | else | |
909 | die("Log for %s is empty.", refname); | |
910 | } | |
4207ed28 RS |
911 | if (cb.found_it) |
912 | return 0; | |
913 | ||
914 | for_each_reflog_ent(refname, read_ref_at_ent_oldest, &cb); | |
d556fae2 | 915 | |
16d7cc90 | 916 | return 1; |
d556fae2 | 917 | } |
2ff81662 | 918 | |
c0fe4e8b NTND |
919 | struct ref_transaction *ref_store_transaction_begin(struct ref_store *refs, |
920 | struct strbuf *err) | |
caa4046c | 921 | { |
c0fe4e8b | 922 | struct ref_transaction *tr; |
5a603b04 JN |
923 | assert(err); |
924 | ||
c0fe4e8b NTND |
925 | tr = xcalloc(1, sizeof(struct ref_transaction)); |
926 | tr->ref_store = refs; | |
927 | return tr; | |
928 | } | |
929 | ||
930 | struct ref_transaction *ref_transaction_begin(struct strbuf *err) | |
931 | { | |
23a3f0cb | 932 | return ref_store_transaction_begin(get_main_ref_store(the_repository), err); |
caa4046c MH |
933 | } |
934 | ||
026bd1d3 | 935 | void ref_transaction_free(struct ref_transaction *transaction) |
caa4046c | 936 | { |
43a2dfde | 937 | size_t i; |
caa4046c | 938 | |
1b07255c RS |
939 | if (!transaction) |
940 | return; | |
941 | ||
30173b88 MH |
942 | switch (transaction->state) { |
943 | case REF_TRANSACTION_OPEN: | |
944 | case REF_TRANSACTION_CLOSED: | |
945 | /* OK */ | |
946 | break; | |
947 | case REF_TRANSACTION_PREPARED: | |
948 | die("BUG: free called on a prepared reference transaction"); | |
949 | break; | |
950 | default: | |
951 | die("BUG: unexpected reference transaction state"); | |
952 | break; | |
953 | } | |
954 | ||
db7516ab RS |
955 | for (i = 0; i < transaction->nr; i++) { |
956 | free(transaction->updates[i]->msg); | |
88615910 | 957 | free(transaction->updates[i]); |
db7516ab | 958 | } |
caa4046c MH |
959 | free(transaction->updates); |
960 | free(transaction); | |
961 | } | |
962 | ||
71564516 MH |
963 | struct ref_update *ref_transaction_add_update( |
964 | struct ref_transaction *transaction, | |
965 | const char *refname, unsigned int flags, | |
89f3bbdd | 966 | const struct object_id *new_oid, |
967 | const struct object_id *old_oid, | |
71564516 | 968 | const char *msg) |
caa4046c | 969 | { |
96ffc06f | 970 | struct ref_update *update; |
71564516 MH |
971 | |
972 | if (transaction->state != REF_TRANSACTION_OPEN) | |
973 | die("BUG: update called for transaction that is not open"); | |
974 | ||
96ffc06f | 975 | FLEX_ALLOC_STR(update, refname, refname); |
caa4046c MH |
976 | ALLOC_GROW(transaction->updates, transaction->nr + 1, transaction->alloc); |
977 | transaction->updates[transaction->nr++] = update; | |
71564516 MH |
978 | |
979 | update->flags = flags; | |
980 | ||
981 | if (flags & REF_HAVE_NEW) | |
89f3bbdd | 982 | oidcpy(&update->new_oid, new_oid); |
71564516 | 983 | if (flags & REF_HAVE_OLD) |
89f3bbdd | 984 | oidcpy(&update->old_oid, old_oid); |
13092a91 | 985 | update->msg = xstrdup_or_null(msg); |
caa4046c MH |
986 | return update; |
987 | } | |
988 | ||
8e34800e RS |
989 | int ref_transaction_update(struct ref_transaction *transaction, |
990 | const char *refname, | |
89f3bbdd | 991 | const struct object_id *new_oid, |
992 | const struct object_id *old_oid, | |
1d147bdf | 993 | unsigned int flags, const char *msg, |
8e34800e | 994 | struct strbuf *err) |
caa4046c | 995 | { |
5a603b04 JN |
996 | assert(err); |
997 | ||
89f3bbdd | 998 | if ((new_oid && !is_null_oid(new_oid)) ? |
8a679de6 MH |
999 | check_refname_format(refname, REFNAME_ALLOW_ONELEVEL) : |
1000 | !refname_is_safe(refname)) { | |
0568c8e9 | 1001 | strbuf_addf(err, "refusing to update ref with bad name '%s'", |
d0f810f0 RS |
1002 | refname); |
1003 | return -1; | |
1004 | } | |
1005 | ||
a9bbbcec MH |
1006 | if (flags & ~REF_TRANSACTION_UPDATE_ALLOWED_FLAGS) |
1007 | BUG("illegal flags 0x%x passed to ref_transaction_update()", flags); | |
c788c54c | 1008 | |
89f3bbdd | 1009 | flags |= (new_oid ? REF_HAVE_NEW : 0) | (old_oid ? REF_HAVE_OLD : 0); |
71564516 MH |
1010 | |
1011 | ref_transaction_add_update(transaction, refname, flags, | |
89f3bbdd | 1012 | new_oid, old_oid, msg); |
8e34800e | 1013 | return 0; |
caa4046c MH |
1014 | } |
1015 | ||
b416af5b RS |
1016 | int ref_transaction_create(struct ref_transaction *transaction, |
1017 | const char *refname, | |
89f3bbdd | 1018 | const struct object_id *new_oid, |
fec14ec3 | 1019 | unsigned int flags, const char *msg, |
b416af5b | 1020 | struct strbuf *err) |
caa4046c | 1021 | { |
89f3bbdd | 1022 | if (!new_oid || is_null_oid(new_oid)) |
1023 | die("BUG: create called without valid new_oid"); | |
1024 | return ref_transaction_update(transaction, refname, new_oid, | |
1025 | &null_oid, flags, msg, err); | |
caa4046c MH |
1026 | } |
1027 | ||
8c8bdc0d RS |
1028 | int ref_transaction_delete(struct ref_transaction *transaction, |
1029 | const char *refname, | |
89f3bbdd | 1030 | const struct object_id *old_oid, |
fb5a6bb6 | 1031 | unsigned int flags, const char *msg, |
8c8bdc0d | 1032 | struct strbuf *err) |
caa4046c | 1033 | { |
89f3bbdd | 1034 | if (old_oid && is_null_oid(old_oid)) |
1035 | die("BUG: delete called with old_oid set to zeros"); | |
1d147bdf | 1036 | return ref_transaction_update(transaction, refname, |
89f3bbdd | 1037 | &null_oid, old_oid, |
1d147bdf | 1038 | flags, msg, err); |
caa4046c MH |
1039 | } |
1040 | ||
16180334 MH |
1041 | int ref_transaction_verify(struct ref_transaction *transaction, |
1042 | const char *refname, | |
89f3bbdd | 1043 | const struct object_id *old_oid, |
16180334 MH |
1044 | unsigned int flags, |
1045 | struct strbuf *err) | |
1046 | { | |
89f3bbdd | 1047 | if (!old_oid) |
1048 | die("BUG: verify called with old_oid set to NULL"); | |
16180334 | 1049 | return ref_transaction_update(transaction, refname, |
89f3bbdd | 1050 | NULL, old_oid, |
16180334 MH |
1051 | flags, NULL, err); |
1052 | } | |
1053 | ||
c0fe4e8b | 1054 | int refs_update_ref(struct ref_store *refs, const char *msg, |
ae077771 | 1055 | const char *refname, const struct object_id *new_oid, |
1056 | const struct object_id *old_oid, unsigned int flags, | |
c0fe4e8b | 1057 | enum action_on_err onerr) |
4738a333 | 1058 | { |
74ec19d4 | 1059 | struct ref_transaction *t = NULL; |
b4d75ac1 | 1060 | struct strbuf err = STRBUF_INIT; |
74ec19d4 | 1061 | int ret = 0; |
b4d75ac1 | 1062 | |
74ec19d4 | 1063 | if (ref_type(refname) == REF_TYPE_PSEUDOREF) { |
23a3f0cb | 1064 | assert(refs == get_main_ref_store(the_repository)); |
ae077771 | 1065 | ret = write_pseudoref(refname, new_oid, old_oid, &err); |
74ec19d4 | 1066 | } else { |
c0fe4e8b | 1067 | t = ref_store_transaction_begin(refs, &err); |
74ec19d4 | 1068 | if (!t || |
89f3bbdd | 1069 | ref_transaction_update(t, refname, new_oid, old_oid, |
74ec19d4 DT |
1070 | flags, msg, &err) || |
1071 | ref_transaction_commit(t, &err)) { | |
1072 | ret = 1; | |
1073 | ref_transaction_free(t); | |
1074 | } | |
1075 | } | |
1076 | if (ret) { | |
b4d75ac1 RS |
1077 | const char *str = "update_ref failed for ref '%s': %s"; |
1078 | ||
b4d75ac1 RS |
1079 | switch (onerr) { |
1080 | case UPDATE_REFS_MSG_ON_ERR: | |
1081 | error(str, refname, err.buf); | |
1082 | break; | |
1083 | case UPDATE_REFS_DIE_ON_ERR: | |
1084 | die(str, refname, err.buf); | |
1085 | break; | |
1086 | case UPDATE_REFS_QUIET_ON_ERR: | |
1087 | break; | |
1088 | } | |
1089 | strbuf_release(&err); | |
4738a333 | 1090 | return 1; |
b4d75ac1 RS |
1091 | } |
1092 | strbuf_release(&err); | |
74ec19d4 DT |
1093 | if (t) |
1094 | ref_transaction_free(t); | |
b4d75ac1 | 1095 | return 0; |
4738a333 BK |
1096 | } |
1097 | ||
c0fe4e8b | 1098 | int update_ref(const char *msg, const char *refname, |
ae077771 | 1099 | const struct object_id *new_oid, |
1100 | const struct object_id *old_oid, | |
c0fe4e8b NTND |
1101 | unsigned int flags, enum action_on_err onerr) |
1102 | { | |
23a3f0cb | 1103 | return refs_update_ref(get_main_ref_store(the_repository), msg, refname, new_oid, |
ae077771 | 1104 | old_oid, flags, onerr); |
c0fe4e8b NTND |
1105 | } |
1106 | ||
dfefa935 | 1107 | char *shorten_unambiguous_ref(const char *refname, int strict) |
7c2b3029 JK |
1108 | { |
1109 | int i; | |
1110 | static char **scanf_fmts; | |
1111 | static int nr_rules; | |
1112 | char *short_name; | |
6cd4a898 | 1113 | struct strbuf resolved_buf = STRBUF_INIT; |
7c2b3029 | 1114 | |
7c2b3029 | 1115 | if (!nr_rules) { |
4346663a MH |
1116 | /* |
1117 | * Pre-generate scanf formats from ref_rev_parse_rules[]. | |
1118 | * Generate a format suitable for scanf from a | |
1119 | * ref_rev_parse_rules rule by interpolating "%s" at the | |
1120 | * location of the "%.*s". | |
1121 | */ | |
7c2b3029 | 1122 | size_t total_len = 0; |
84d5633f | 1123 | size_t offset = 0; |
7c2b3029 JK |
1124 | |
1125 | /* the rule list is NULL terminated, count them first */ | |
a4165851 | 1126 | for (nr_rules = 0; ref_rev_parse_rules[nr_rules]; nr_rules++) |
7902fe03 MH |
1127 | /* -2 for strlen("%.*s") - strlen("%s"); +1 for NUL */ |
1128 | total_len += strlen(ref_rev_parse_rules[nr_rules]) - 2 + 1; | |
7c2b3029 | 1129 | |
50492f7b | 1130 | scanf_fmts = xmalloc(st_add(st_mult(sizeof(char *), nr_rules), total_len)); |
7c2b3029 | 1131 | |
84d5633f | 1132 | offset = 0; |
7c2b3029 | 1133 | for (i = 0; i < nr_rules; i++) { |
4346663a | 1134 | assert(offset < total_len); |
84d5633f | 1135 | scanf_fmts[i] = (char *)&scanf_fmts[nr_rules] + offset; |
4346663a MH |
1136 | offset += snprintf(scanf_fmts[i], total_len - offset, |
1137 | ref_rev_parse_rules[i], 2, "%s") + 1; | |
7c2b3029 JK |
1138 | } |
1139 | } | |
1140 | ||
1141 | /* bail out if there are no rules */ | |
1142 | if (!nr_rules) | |
dfefa935 | 1143 | return xstrdup(refname); |
7c2b3029 | 1144 | |
dfefa935 MH |
1145 | /* buffer for scanf result, at most refname must fit */ |
1146 | short_name = xstrdup(refname); | |
7c2b3029 JK |
1147 | |
1148 | /* skip first rule, it will always match */ | |
1149 | for (i = nr_rules - 1; i > 0 ; --i) { | |
1150 | int j; | |
6e7b3309 | 1151 | int rules_to_fail = i; |
7c2b3029 JK |
1152 | int short_name_len; |
1153 | ||
dfefa935 | 1154 | if (1 != sscanf(refname, scanf_fmts[i], short_name)) |
7c2b3029 JK |
1155 | continue; |
1156 | ||
1157 | short_name_len = strlen(short_name); | |
1158 | ||
6e7b3309 BW |
1159 | /* |
1160 | * in strict mode, all (except the matched one) rules | |
1161 | * must fail to resolve to a valid non-ambiguous ref | |
1162 | */ | |
1163 | if (strict) | |
1164 | rules_to_fail = nr_rules; | |
1165 | ||
7c2b3029 JK |
1166 | /* |
1167 | * check if the short name resolves to a valid ref, | |
1168 | * but use only rules prior to the matched one | |
1169 | */ | |
6e7b3309 | 1170 | for (j = 0; j < rules_to_fail; j++) { |
7c2b3029 | 1171 | const char *rule = ref_rev_parse_rules[j]; |
7c2b3029 | 1172 | |
6e7b3309 BW |
1173 | /* skip matched rule */ |
1174 | if (i == j) | |
1175 | continue; | |
1176 | ||
7c2b3029 JK |
1177 | /* |
1178 | * the short name is ambiguous, if it resolves | |
1179 | * (with this previous rule) to a valid ref | |
1180 | * read_ref() returns 0 on success | |
1181 | */ | |
6cd4a898 JK |
1182 | strbuf_reset(&resolved_buf); |
1183 | strbuf_addf(&resolved_buf, rule, | |
1184 | short_name_len, short_name); | |
1185 | if (ref_exists(resolved_buf.buf)) | |
7c2b3029 JK |
1186 | break; |
1187 | } | |
1188 | ||
1189 | /* | |
1190 | * short name is non-ambiguous if all previous rules | |
1191 | * haven't resolved to a valid ref | |
1192 | */ | |
6cd4a898 JK |
1193 | if (j == rules_to_fail) { |
1194 | strbuf_release(&resolved_buf); | |
7c2b3029 | 1195 | return short_name; |
6cd4a898 | 1196 | } |
7c2b3029 JK |
1197 | } |
1198 | ||
6cd4a898 | 1199 | strbuf_release(&resolved_buf); |
7c2b3029 | 1200 | free(short_name); |
dfefa935 | 1201 | return xstrdup(refname); |
7c2b3029 | 1202 | } |
daebaa78 JH |
1203 | |
1204 | static struct string_list *hide_refs; | |
1205 | ||
1206 | int parse_hide_refs_config(const char *var, const char *value, const char *section) | |
1207 | { | |
ad8c7cda | 1208 | const char *key; |
daebaa78 | 1209 | if (!strcmp("transfer.hiderefs", var) || |
ad8c7cda JK |
1210 | (!parse_config_key(var, section, NULL, NULL, &key) && |
1211 | !strcmp(key, "hiderefs"))) { | |
daebaa78 JH |
1212 | char *ref; |
1213 | int len; | |
1214 | ||
1215 | if (!value) | |
1216 | return config_error_nonbool(var); | |
1217 | ref = xstrdup(value); | |
1218 | len = strlen(ref); | |
1219 | while (len && ref[len - 1] == '/') | |
1220 | ref[--len] = '\0'; | |
1221 | if (!hide_refs) { | |
1222 | hide_refs = xcalloc(1, sizeof(*hide_refs)); | |
1223 | hide_refs->strdup_strings = 1; | |
1224 | } | |
1225 | string_list_append(hide_refs, ref); | |
1226 | } | |
1227 | return 0; | |
1228 | } | |
1229 | ||
78a766ab | 1230 | int ref_is_hidden(const char *refname, const char *refname_full) |
daebaa78 | 1231 | { |
2bc31d16 | 1232 | int i; |
daebaa78 JH |
1233 | |
1234 | if (!hide_refs) | |
1235 | return 0; | |
2bc31d16 JK |
1236 | for (i = hide_refs->nr - 1; i >= 0; i--) { |
1237 | const char *match = hide_refs->items[i].string; | |
78a766ab | 1238 | const char *subject; |
2bc31d16 | 1239 | int neg = 0; |
7a40a95e | 1240 | const char *p; |
2bc31d16 JK |
1241 | |
1242 | if (*match == '!') { | |
1243 | neg = 1; | |
1244 | match++; | |
1245 | } | |
1246 | ||
78a766ab LF |
1247 | if (*match == '^') { |
1248 | subject = refname_full; | |
1249 | match++; | |
1250 | } else { | |
1251 | subject = refname; | |
1252 | } | |
1253 | ||
1254 | /* refname can be NULL when namespaces are used. */ | |
7a40a95e CC |
1255 | if (subject && |
1256 | skip_prefix(subject, match, &p) && | |
1257 | (!*p || *p == '/')) | |
2bc31d16 | 1258 | return !neg; |
daebaa78 JH |
1259 | } |
1260 | return 0; | |
1261 | } | |
fa5b1830 | 1262 | |
0845122c DT |
1263 | const char *find_descendant_ref(const char *dirname, |
1264 | const struct string_list *extras, | |
1265 | const struct string_list *skip) | |
fa5b1830 | 1266 | { |
0845122c | 1267 | int pos; |
fa5b1830 | 1268 | |
0845122c DT |
1269 | if (!extras) |
1270 | return NULL; | |
fa5b1830 MH |
1271 | |
1272 | /* | |
0845122c DT |
1273 | * Look at the place where dirname would be inserted into |
1274 | * extras. If there is an entry at that position that starts | |
1275 | * with dirname (remember, dirname includes the trailing | |
1276 | * slash) and is not in skip, then we have a conflict. | |
fa5b1830 | 1277 | */ |
0845122c DT |
1278 | for (pos = string_list_find_insert_index(extras, dirname, 0); |
1279 | pos < extras->nr; pos++) { | |
1280 | const char *extra_refname = extras->items[pos].string; | |
fa5b1830 | 1281 | |
0845122c DT |
1282 | if (!starts_with(extra_refname, dirname)) |
1283 | break; | |
1284 | ||
1285 | if (!skip || !string_list_has_string(skip, extra_refname)) | |
1286 | return extra_refname; | |
fa5b1830 | 1287 | } |
0845122c DT |
1288 | return NULL; |
1289 | } | |
fa5b1830 | 1290 | |
7d2df051 NTND |
1291 | int refs_rename_ref_available(struct ref_store *refs, |
1292 | const char *old_refname, | |
1293 | const char *new_refname) | |
0845122c DT |
1294 | { |
1295 | struct string_list skip = STRING_LIST_INIT_NODUP; | |
1296 | struct strbuf err = STRBUF_INIT; | |
ff3a299c | 1297 | int ok; |
fa5b1830 | 1298 | |
ff3a299c | 1299 | string_list_insert(&skip, old_refname); |
7d2df051 NTND |
1300 | ok = !refs_verify_refname_available(refs, new_refname, |
1301 | NULL, &skip, &err); | |
ff3a299c | 1302 | if (!ok) |
0845122c DT |
1303 | error("%s", err.buf); |
1304 | ||
1305 | string_list_clear(&skip, 0); | |
1306 | strbuf_release(&err); | |
ff3a299c | 1307 | return ok; |
fa5b1830 | 1308 | } |
2bf68ed5 | 1309 | |
62f0b399 | 1310 | int refs_head_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
2bf68ed5 DT |
1311 | { |
1312 | struct object_id oid; | |
1313 | int flag; | |
1314 | ||
62f0b399 | 1315 | if (!refs_read_ref_full(refs, "HEAD", RESOLVE_REF_READING, |
34c290a6 | 1316 | &oid, &flag)) |
2bf68ed5 DT |
1317 | return fn("HEAD", &oid, flag, cb_data); |
1318 | ||
1319 | return 0; | |
1320 | } | |
1321 | ||
1322 | int head_ref(each_ref_fn fn, void *cb_data) | |
1323 | { | |
23a3f0cb | 1324 | return refs_head_ref(get_main_ref_store(the_repository), fn, cb_data); |
2bf68ed5 | 1325 | } |
93770590 | 1326 | |
e121b9cb MH |
1327 | struct ref_iterator *refs_ref_iterator_begin( |
1328 | struct ref_store *refs, | |
1329 | const char *prefix, int trim, int flags) | |
1330 | { | |
1331 | struct ref_iterator *iter; | |
1332 | ||
0a0865b8 MH |
1333 | if (ref_paranoia < 0) |
1334 | ref_paranoia = git_env_bool("GIT_REF_PARANOIA", 0); | |
1335 | if (ref_paranoia) | |
1336 | flags |= DO_FOR_EACH_INCLUDE_BROKEN; | |
1337 | ||
e121b9cb | 1338 | iter = refs->be->iterator_begin(refs, prefix, flags); |
c7599718 MH |
1339 | |
1340 | /* | |
1341 | * `iterator_begin()` already takes care of prefix, but we | |
1342 | * might need to do some trimming: | |
1343 | */ | |
1344 | if (trim) | |
1345 | iter = prefix_ref_iterator_begin(iter, "", trim); | |
e121b9cb | 1346 | |
8738a8a4 MH |
1347 | /* Sanity check for subclasses: */ |
1348 | if (!iter->ordered) | |
1349 | BUG("reference iterator is not ordered"); | |
1350 | ||
e121b9cb MH |
1351 | return iter; |
1352 | } | |
1353 | ||
4c4de895 MH |
1354 | /* |
1355 | * Call fn for each reference in the specified submodule for which the | |
1356 | * refname begins with prefix. If trim is non-zero, then trim that | |
1357 | * many characters off the beginning of each refname before passing | |
1358 | * the refname to fn. flags can be DO_FOR_EACH_INCLUDE_BROKEN to | |
1359 | * include broken references in the iteration. If fn ever returns a | |
1360 | * non-zero value, stop the iteration and return that value; | |
1361 | * otherwise, return 0. | |
1362 | */ | |
7d2df051 | 1363 | static int do_for_each_ref(struct ref_store *refs, const char *prefix, |
4c4de895 MH |
1364 | each_ref_fn fn, int trim, int flags, void *cb_data) |
1365 | { | |
1366 | struct ref_iterator *iter; | |
1367 | ||
00eebe35 MH |
1368 | if (!refs) |
1369 | return 0; | |
1370 | ||
e121b9cb | 1371 | iter = refs_ref_iterator_begin(refs, prefix, trim, flags); |
4c4de895 MH |
1372 | |
1373 | return do_for_each_ref_iterator(iter, fn, cb_data); | |
1374 | } | |
1375 | ||
7d2df051 NTND |
1376 | int refs_for_each_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
1377 | { | |
1378 | return do_for_each_ref(refs, "", fn, 0, 0, cb_data); | |
1379 | } | |
1380 | ||
93770590 DT |
1381 | int for_each_ref(each_ref_fn fn, void *cb_data) |
1382 | { | |
23a3f0cb | 1383 | return refs_for_each_ref(get_main_ref_store(the_repository), fn, cb_data); |
93770590 DT |
1384 | } |
1385 | ||
7d2df051 NTND |
1386 | int refs_for_each_ref_in(struct ref_store *refs, const char *prefix, |
1387 | each_ref_fn fn, void *cb_data) | |
1388 | { | |
1389 | return do_for_each_ref(refs, prefix, fn, strlen(prefix), 0, cb_data); | |
93770590 DT |
1390 | } |
1391 | ||
1392 | int for_each_ref_in(const char *prefix, each_ref_fn fn, void *cb_data) | |
1393 | { | |
23a3f0cb | 1394 | return refs_for_each_ref_in(get_main_ref_store(the_repository), prefix, fn, cb_data); |
93770590 DT |
1395 | } |
1396 | ||
1397 | int for_each_fullref_in(const char *prefix, each_ref_fn fn, void *cb_data, unsigned int broken) | |
1398 | { | |
1399 | unsigned int flag = 0; | |
1400 | ||
1401 | if (broken) | |
1402 | flag = DO_FOR_EACH_INCLUDE_BROKEN; | |
23a3f0cb | 1403 | return do_for_each_ref(get_main_ref_store(the_repository), |
7d2df051 | 1404 | prefix, fn, 0, flag, cb_data); |
93770590 DT |
1405 | } |
1406 | ||
073cf63c NTND |
1407 | int refs_for_each_fullref_in(struct ref_store *refs, const char *prefix, |
1408 | each_ref_fn fn, void *cb_data, | |
1409 | unsigned int broken) | |
03df567f MH |
1410 | { |
1411 | unsigned int flag = 0; | |
1412 | ||
1413 | if (broken) | |
1414 | flag = DO_FOR_EACH_INCLUDE_BROKEN; | |
073cf63c | 1415 | return do_for_each_ref(refs, prefix, fn, 0, flag, cb_data); |
03df567f MH |
1416 | } |
1417 | ||
60ce76d3 | 1418 | int for_each_replace_ref_the_repository(each_ref_fn fn, void *cb_data) |
93770590 | 1419 | { |
23a3f0cb | 1420 | return do_for_each_ref(get_main_ref_store(the_repository), |
7d2df051 NTND |
1421 | git_replace_ref_base, fn, |
1422 | strlen(git_replace_ref_base), | |
006f3f28 | 1423 | DO_FOR_EACH_INCLUDE_BROKEN, cb_data); |
93770590 DT |
1424 | } |
1425 | ||
1426 | int for_each_namespaced_ref(each_ref_fn fn, void *cb_data) | |
1427 | { | |
1428 | struct strbuf buf = STRBUF_INIT; | |
1429 | int ret; | |
1430 | strbuf_addf(&buf, "%srefs/", get_git_namespace()); | |
23a3f0cb | 1431 | ret = do_for_each_ref(get_main_ref_store(the_repository), |
7d2df051 | 1432 | buf.buf, fn, 0, 0, cb_data); |
93770590 DT |
1433 | strbuf_release(&buf); |
1434 | return ret; | |
1435 | } | |
1436 | ||
7d2df051 | 1437 | int refs_for_each_rawref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
93770590 | 1438 | { |
7d2df051 | 1439 | return do_for_each_ref(refs, "", fn, 0, |
93770590 DT |
1440 | DO_FOR_EACH_INCLUDE_BROKEN, cb_data); |
1441 | } | |
2d0663b2 | 1442 | |
7d2df051 NTND |
1443 | int for_each_rawref(each_ref_fn fn, void *cb_data) |
1444 | { | |
23a3f0cb | 1445 | return refs_for_each_rawref(get_main_ref_store(the_repository), fn, cb_data); |
7d2df051 NTND |
1446 | } |
1447 | ||
470be518 | 1448 | int refs_read_raw_ref(struct ref_store *ref_store, |
99afe91a | 1449 | const char *refname, struct object_id *oid, |
470be518 MH |
1450 | struct strbuf *referent, unsigned int *type) |
1451 | { | |
99afe91a | 1452 | return ref_store->be->read_raw_ref(ref_store, refname, oid, referent, type); |
470be518 MH |
1453 | } |
1454 | ||
2d0663b2 | 1455 | /* This function needs to return a meaningful errno on failure */ |
7d2df051 | 1456 | const char *refs_resolve_ref_unsafe(struct ref_store *refs, |
3c0cb0cb MH |
1457 | const char *refname, |
1458 | int resolve_flags, | |
49e61479 | 1459 | struct object_id *oid, int *flags) |
2d0663b2 DT |
1460 | { |
1461 | static struct strbuf sb_refname = STRBUF_INIT; | |
54fad661 | 1462 | struct object_id unused_oid; |
2d0663b2 DT |
1463 | int unused_flags; |
1464 | int symref_count; | |
1465 | ||
49e61479 | 1466 | if (!oid) |
1467 | oid = &unused_oid; | |
2d0663b2 DT |
1468 | if (!flags) |
1469 | flags = &unused_flags; | |
1470 | ||
1471 | *flags = 0; | |
1472 | ||
1473 | if (check_refname_format(refname, REFNAME_ALLOW_ONELEVEL)) { | |
1474 | if (!(resolve_flags & RESOLVE_REF_ALLOW_BAD_NAME) || | |
1475 | !refname_is_safe(refname)) { | |
1476 | errno = EINVAL; | |
1477 | return NULL; | |
1478 | } | |
1479 | ||
1480 | /* | |
1481 | * dwim_ref() uses REF_ISBROKEN to distinguish between | |
1482 | * missing refs and refs that were present but invalid, | |
1483 | * to complain about the latter to stderr. | |
1484 | * | |
1485 | * We don't know whether the ref exists, so don't set | |
1486 | * REF_ISBROKEN yet. | |
1487 | */ | |
1488 | *flags |= REF_BAD_NAME; | |
1489 | } | |
1490 | ||
1491 | for (symref_count = 0; symref_count < SYMREF_MAXDEPTH; symref_count++) { | |
1492 | unsigned int read_flags = 0; | |
1493 | ||
470be518 | 1494 | if (refs_read_raw_ref(refs, refname, |
99afe91a | 1495 | oid, &sb_refname, &read_flags)) { |
2d0663b2 | 1496 | *flags |= read_flags; |
a1c1d817 JK |
1497 | |
1498 | /* In reading mode, refs must eventually resolve */ | |
1499 | if (resolve_flags & RESOLVE_REF_READING) | |
1500 | return NULL; | |
1501 | ||
1502 | /* | |
1503 | * Otherwise a missing ref is OK. But the files backend | |
1504 | * may show errors besides ENOENT if there are | |
1505 | * similarly-named refs. | |
1506 | */ | |
1507 | if (errno != ENOENT && | |
1508 | errno != EISDIR && | |
1509 | errno != ENOTDIR) | |
2d0663b2 | 1510 | return NULL; |
a1c1d817 | 1511 | |
49e61479 | 1512 | oidclr(oid); |
2d0663b2 DT |
1513 | if (*flags & REF_BAD_NAME) |
1514 | *flags |= REF_ISBROKEN; | |
1515 | return refname; | |
1516 | } | |
1517 | ||
1518 | *flags |= read_flags; | |
1519 | ||
1520 | if (!(read_flags & REF_ISSYMREF)) { | |
1521 | if (*flags & REF_BAD_NAME) { | |
49e61479 | 1522 | oidclr(oid); |
2d0663b2 DT |
1523 | *flags |= REF_ISBROKEN; |
1524 | } | |
1525 | return refname; | |
1526 | } | |
1527 | ||
1528 | refname = sb_refname.buf; | |
1529 | if (resolve_flags & RESOLVE_REF_NO_RECURSE) { | |
49e61479 | 1530 | oidclr(oid); |
2d0663b2 DT |
1531 | return refname; |
1532 | } | |
1533 | if (check_refname_format(refname, REFNAME_ALLOW_ONELEVEL)) { | |
1534 | if (!(resolve_flags & RESOLVE_REF_ALLOW_BAD_NAME) || | |
1535 | !refname_is_safe(refname)) { | |
1536 | errno = EINVAL; | |
1537 | return NULL; | |
1538 | } | |
1539 | ||
1540 | *flags |= REF_ISBROKEN | REF_BAD_NAME; | |
1541 | } | |
1542 | } | |
1543 | ||
1544 | errno = ELOOP; | |
1545 | return NULL; | |
1546 | } | |
00eebe35 | 1547 | |
6fb5acfd DT |
1548 | /* backend functions */ |
1549 | int refs_init_db(struct strbuf *err) | |
1550 | { | |
23a3f0cb | 1551 | struct ref_store *refs = get_main_ref_store(the_repository); |
6fb5acfd DT |
1552 | |
1553 | return refs->be->init_db(refs, err); | |
1554 | } | |
1555 | ||
bd40dcda | 1556 | const char *resolve_ref_unsafe(const char *refname, int resolve_flags, |
49e61479 | 1557 | struct object_id *oid, int *flags) |
bd40dcda | 1558 | { |
23a3f0cb | 1559 | return refs_resolve_ref_unsafe(get_main_ref_store(the_repository), refname, |
49e61479 | 1560 | resolve_flags, oid, flags); |
bd40dcda MH |
1561 | } |
1562 | ||
a8355bb7 | 1563 | int resolve_gitlink_ref(const char *submodule, const char *refname, |
a98e6101 | 1564 | struct object_id *oid) |
424dcc76 | 1565 | { |
424dcc76 MH |
1566 | struct ref_store *refs; |
1567 | int flags; | |
1568 | ||
29babbee | 1569 | refs = get_submodule_ref_store(submodule); |
48a8475f | 1570 | |
424dcc76 MH |
1571 | if (!refs) |
1572 | return -1; | |
1573 | ||
49e61479 | 1574 | if (!refs_resolve_ref_unsafe(refs, refname, 0, oid, &flags) || |
a98e6101 | 1575 | is_null_oid(oid)) |
424dcc76 MH |
1576 | return -1; |
1577 | return 0; | |
1578 | } | |
1579 | ||
0c064d90 | 1580 | struct ref_store_hash_entry |
7d4558c4 MH |
1581 | { |
1582 | struct hashmap_entry ent; /* must be the first member! */ | |
1583 | ||
1584 | struct ref_store *refs; | |
1585 | ||
0c064d90 NTND |
1586 | /* NUL-terminated identifier of the ref store: */ |
1587 | char name[FLEX_ARRAY]; | |
7d4558c4 MH |
1588 | }; |
1589 | ||
7663cdc8 SB |
1590 | static int ref_store_hash_cmp(const void *unused_cmp_data, |
1591 | const void *entry, const void *entry_or_key, | |
7d4558c4 MH |
1592 | const void *keydata) |
1593 | { | |
0c064d90 NTND |
1594 | const struct ref_store_hash_entry *e1 = entry, *e2 = entry_or_key; |
1595 | const char *name = keydata ? keydata : e2->name; | |
7d4558c4 | 1596 | |
0c064d90 | 1597 | return strcmp(e1->name, name); |
7d4558c4 MH |
1598 | } |
1599 | ||
0c064d90 NTND |
1600 | static struct ref_store_hash_entry *alloc_ref_store_hash_entry( |
1601 | const char *name, struct ref_store *refs) | |
7d4558c4 | 1602 | { |
0c064d90 | 1603 | struct ref_store_hash_entry *entry; |
7d4558c4 | 1604 | |
0c064d90 NTND |
1605 | FLEX_ALLOC_STR(entry, name, name); |
1606 | hashmap_entry_init(entry, strhash(name)); | |
7d4558c4 MH |
1607 | entry->refs = refs; |
1608 | return entry; | |
1609 | } | |
1610 | ||
00eebe35 MH |
1611 | /* A pointer to the ref_store for the main repository: */ |
1612 | static struct ref_store *main_ref_store; | |
1613 | ||
7d4558c4 MH |
1614 | /* A hashmap of ref_stores, stored by submodule name: */ |
1615 | static struct hashmap submodule_ref_stores; | |
00eebe35 | 1616 | |
17eff96b NTND |
1617 | /* A hashmap of ref_stores, stored by worktree id: */ |
1618 | static struct hashmap worktree_ref_stores; | |
1619 | ||
c468da4e | 1620 | /* |
0c064d90 NTND |
1621 | * Look up a ref store by name. If that ref_store hasn't been |
1622 | * registered yet, return NULL. | |
c468da4e | 1623 | */ |
0c064d90 NTND |
1624 | static struct ref_store *lookup_ref_store_map(struct hashmap *map, |
1625 | const char *name) | |
00eebe35 | 1626 | { |
0c064d90 | 1627 | struct ref_store_hash_entry *entry; |
00eebe35 | 1628 | |
0c064d90 | 1629 | if (!map->tablesize) |
7d4558c4 MH |
1630 | /* It's initialized on demand in register_ref_store(). */ |
1631 | return NULL; | |
620a66b9 | 1632 | |
0c064d90 | 1633 | entry = hashmap_get_from_hash(map, strhash(name), name); |
7d4558c4 | 1634 | return entry ? entry->refs : NULL; |
00eebe35 MH |
1635 | } |
1636 | ||
c468da4e MH |
1637 | /* |
1638 | * Create, record, and return a ref_store instance for the specified | |
5d0bc90e | 1639 | * gitdir. |
c468da4e | 1640 | */ |
9e7ec634 NTND |
1641 | static struct ref_store *ref_store_init(const char *gitdir, |
1642 | unsigned int flags) | |
00eebe35 MH |
1643 | { |
1644 | const char *be_name = "files"; | |
1645 | struct ref_storage_be *be = find_ref_storage_backend(be_name); | |
ba88add5 | 1646 | struct ref_store *refs; |
00eebe35 MH |
1647 | |
1648 | if (!be) | |
1649 | die("BUG: reference backend %s is unknown", be_name); | |
1650 | ||
9e7ec634 | 1651 | refs = be->init(gitdir, flags); |
ba88add5 | 1652 | return refs; |
00eebe35 MH |
1653 | } |
1654 | ||
23a3f0cb | 1655 | struct ref_store *get_main_ref_store_the_repository(void) |
24c8407e NTND |
1656 | { |
1657 | if (main_ref_store) | |
1658 | return main_ref_store; | |
1659 | ||
0d8a814d | 1660 | main_ref_store = ref_store_init(get_git_dir(), REF_STORE_ALL_CAPS); |
378dc910 NTND |
1661 | return main_ref_store; |
1662 | } | |
1663 | ||
1664 | /* | |
0c064d90 NTND |
1665 | * Associate a ref store with a name. It is a fatal error to call this |
1666 | * function twice for the same name. | |
378dc910 | 1667 | */ |
0c064d90 NTND |
1668 | static void register_ref_store_map(struct hashmap *map, |
1669 | const char *type, | |
1670 | struct ref_store *refs, | |
1671 | const char *name) | |
378dc910 | 1672 | { |
0c064d90 | 1673 | if (!map->tablesize) |
7663cdc8 | 1674 | hashmap_init(map, ref_store_hash_cmp, NULL, 0); |
378dc910 | 1675 | |
0c064d90 NTND |
1676 | if (hashmap_put(map, alloc_ref_store_hash_entry(name, refs))) |
1677 | die("BUG: %s ref_store '%s' initialized twice", type, name); | |
24c8407e NTND |
1678 | } |
1679 | ||
18d0002d | 1680 | struct ref_store *get_submodule_ref_store(const char *submodule) |
00eebe35 | 1681 | { |
126c9e05 | 1682 | struct strbuf submodule_sb = STRBUF_INIT; |
00eebe35 | 1683 | struct ref_store *refs; |
29babbee NTND |
1684 | char *to_free = NULL; |
1685 | size_t len; | |
00eebe35 | 1686 | |
82a150f2 NTND |
1687 | if (!submodule) |
1688 | return NULL; | |
1689 | ||
873ea90d NTND |
1690 | len = strlen(submodule); |
1691 | while (len && is_dir_sep(submodule[len - 1])) | |
1692 | len--; | |
1693 | if (!len) | |
1694 | return NULL; | |
00eebe35 | 1695 | |
29babbee NTND |
1696 | if (submodule[len]) |
1697 | /* We need to strip off one or more trailing slashes */ | |
1698 | submodule = to_free = xmemdupz(submodule, len); | |
00eebe35 | 1699 | |
0c064d90 | 1700 | refs = lookup_ref_store_map(&submodule_ref_stores, submodule); |
126c9e05 | 1701 | if (refs) |
2c616c17 | 1702 | goto done; |
00eebe35 | 1703 | |
126c9e05 | 1704 | strbuf_addstr(&submodule_sb, submodule); |
2c616c17 NTND |
1705 | if (!is_nonbare_repository_dir(&submodule_sb)) |
1706 | goto done; | |
00eebe35 | 1707 | |
2c616c17 NTND |
1708 | if (submodule_to_gitdir(&submodule_sb, submodule)) |
1709 | goto done; | |
00eebe35 | 1710 | |
9e7ec634 NTND |
1711 | /* assume that add_submodule_odb() has been called */ |
1712 | refs = ref_store_init(submodule_sb.buf, | |
1713 | REF_STORE_READ | REF_STORE_ODB); | |
0c064d90 NTND |
1714 | register_ref_store_map(&submodule_ref_stores, "submodule", |
1715 | refs, submodule); | |
5d0bc90e | 1716 | |
2c616c17 | 1717 | done: |
5d0bc90e | 1718 | strbuf_release(&submodule_sb); |
29babbee NTND |
1719 | free(to_free); |
1720 | ||
00eebe35 MH |
1721 | return refs; |
1722 | } | |
1723 | ||
17eff96b NTND |
1724 | struct ref_store *get_worktree_ref_store(const struct worktree *wt) |
1725 | { | |
1726 | struct ref_store *refs; | |
1727 | const char *id; | |
1728 | ||
1729 | if (wt->is_current) | |
23a3f0cb | 1730 | return get_main_ref_store(the_repository); |
17eff96b NTND |
1731 | |
1732 | id = wt->id ? wt->id : "/"; | |
1733 | refs = lookup_ref_store_map(&worktree_ref_stores, id); | |
1734 | if (refs) | |
1735 | return refs; | |
1736 | ||
1737 | if (wt->id) | |
1738 | refs = ref_store_init(git_common_path("worktrees/%s", wt->id), | |
1739 | REF_STORE_ALL_CAPS); | |
1740 | else | |
1741 | refs = ref_store_init(get_git_common_dir(), | |
1742 | REF_STORE_ALL_CAPS); | |
1743 | ||
1744 | if (refs) | |
1745 | register_ref_store_map(&worktree_ref_stores, "worktree", | |
1746 | refs, id); | |
1747 | return refs; | |
1748 | } | |
1749 | ||
620a66b9 | 1750 | void base_ref_store_init(struct ref_store *refs, |
fbfd0a29 | 1751 | const struct ref_storage_be *be) |
00eebe35 | 1752 | { |
620a66b9 | 1753 | refs->be = be; |
00eebe35 | 1754 | } |
127b42a1 RS |
1755 | |
1756 | /* backend functions */ | |
7d2df051 | 1757 | int refs_pack_refs(struct ref_store *refs, unsigned int flags) |
8231527e | 1758 | { |
8231527e MH |
1759 | return refs->be->pack_refs(refs, flags); |
1760 | } | |
1761 | ||
7d2df051 | 1762 | int refs_peel_ref(struct ref_store *refs, const char *refname, |
b420d909 | 1763 | struct object_id *oid) |
7d2df051 | 1764 | { |
ba1c052f | 1765 | int flag; |
34c290a6 | 1766 | struct object_id base; |
ba1c052f MH |
1767 | |
1768 | if (current_ref_iter && current_ref_iter->refname == refname) { | |
1769 | struct object_id peeled; | |
1770 | ||
1771 | if (ref_iterator_peel(current_ref_iter, &peeled)) | |
1772 | return -1; | |
b420d909 | 1773 | oidcpy(oid, &peeled); |
ba1c052f MH |
1774 | return 0; |
1775 | } | |
1776 | ||
1777 | if (refs_read_ref_full(refs, refname, | |
34c290a6 | 1778 | RESOLVE_REF_READING, &base, &flag)) |
ba1c052f MH |
1779 | return -1; |
1780 | ||
ac2ed0d7 | 1781 | return peel_object(&base, oid); |
8231527e MH |
1782 | } |
1783 | ||
b420d909 | 1784 | int peel_ref(const char *refname, struct object_id *oid) |
bd427cf2 | 1785 | { |
23a3f0cb | 1786 | return refs_peel_ref(get_main_ref_store(the_repository), refname, oid); |
7d2df051 | 1787 | } |
bd427cf2 | 1788 | |
7d2df051 NTND |
1789 | int refs_create_symref(struct ref_store *refs, |
1790 | const char *ref_target, | |
1791 | const char *refs_heads_master, | |
1792 | const char *logmsg) | |
1793 | { | |
1794 | return refs->be->create_symref(refs, ref_target, | |
1795 | refs_heads_master, | |
1796 | logmsg); | |
bd427cf2 MH |
1797 | } |
1798 | ||
284689ba MH |
1799 | int create_symref(const char *ref_target, const char *refs_heads_master, |
1800 | const char *logmsg) | |
1801 | { | |
23a3f0cb | 1802 | return refs_create_symref(get_main_ref_store(the_repository), ref_target, |
7d2df051 | 1803 | refs_heads_master, logmsg); |
284689ba MH |
1804 | } |
1805 | ||
2ced105c MH |
1806 | int ref_update_reject_duplicates(struct string_list *refnames, |
1807 | struct strbuf *err) | |
1808 | { | |
a552e50e | 1809 | size_t i, n = refnames->nr; |
2ced105c MH |
1810 | |
1811 | assert(err); | |
1812 | ||
8556f8d6 MH |
1813 | for (i = 1; i < n; i++) { |
1814 | int cmp = strcmp(refnames->items[i - 1].string, | |
1815 | refnames->items[i].string); | |
1816 | ||
1817 | if (!cmp) { | |
2ced105c MH |
1818 | strbuf_addf(err, |
1819 | "multiple updates for ref '%s' not allowed.", | |
1820 | refnames->items[i].string); | |
1821 | return 1; | |
8556f8d6 MH |
1822 | } else if (cmp > 0) { |
1823 | die("BUG: ref_update_reject_duplicates() received unsorted list"); | |
2ced105c | 1824 | } |
8556f8d6 | 1825 | } |
2ced105c MH |
1826 | return 0; |
1827 | } | |
1828 | ||
30173b88 MH |
1829 | int ref_transaction_prepare(struct ref_transaction *transaction, |
1830 | struct strbuf *err) | |
127b42a1 | 1831 | { |
c0fe4e8b | 1832 | struct ref_store *refs = transaction->ref_store; |
127b42a1 | 1833 | |
8d4240d3 MH |
1834 | switch (transaction->state) { |
1835 | case REF_TRANSACTION_OPEN: | |
1836 | /* Good. */ | |
1837 | break; | |
30173b88 MH |
1838 | case REF_TRANSACTION_PREPARED: |
1839 | die("BUG: prepare called twice on reference transaction"); | |
1840 | break; | |
8d4240d3 MH |
1841 | case REF_TRANSACTION_CLOSED: |
1842 | die("BUG: prepare called on a closed reference transaction"); | |
1843 | break; | |
1844 | default: | |
1845 | die("BUG: unexpected reference transaction state"); | |
1846 | break; | |
1847 | } | |
1848 | ||
d8f4481c JK |
1849 | if (getenv(GIT_QUARANTINE_ENVIRONMENT)) { |
1850 | strbuf_addstr(err, | |
1851 | _("ref updates forbidden inside quarantine environment")); | |
1852 | return -1; | |
1853 | } | |
1854 | ||
30173b88 MH |
1855 | return refs->be->transaction_prepare(refs, transaction, err); |
1856 | } | |
1857 | ||
1858 | int ref_transaction_abort(struct ref_transaction *transaction, | |
1859 | struct strbuf *err) | |
1860 | { | |
1861 | struct ref_store *refs = transaction->ref_store; | |
1862 | int ret = 0; | |
1863 | ||
1864 | switch (transaction->state) { | |
1865 | case REF_TRANSACTION_OPEN: | |
1866 | /* No need to abort explicitly. */ | |
1867 | break; | |
1868 | case REF_TRANSACTION_PREPARED: | |
1869 | ret = refs->be->transaction_abort(refs, transaction, err); | |
1870 | break; | |
1871 | case REF_TRANSACTION_CLOSED: | |
1872 | die("BUG: abort called on a closed reference transaction"); | |
1873 | break; | |
1874 | default: | |
1875 | die("BUG: unexpected reference transaction state"); | |
1876 | break; | |
1877 | } | |
1878 | ||
1879 | ref_transaction_free(transaction); | |
1880 | return ret; | |
1881 | } | |
1882 | ||
1883 | int ref_transaction_commit(struct ref_transaction *transaction, | |
1884 | struct strbuf *err) | |
1885 | { | |
1886 | struct ref_store *refs = transaction->ref_store; | |
1887 | int ret; | |
1888 | ||
1889 | switch (transaction->state) { | |
1890 | case REF_TRANSACTION_OPEN: | |
1891 | /* Need to prepare first. */ | |
1892 | ret = ref_transaction_prepare(transaction, err); | |
1893 | if (ret) | |
1894 | return ret; | |
1895 | break; | |
1896 | case REF_TRANSACTION_PREPARED: | |
1897 | /* Fall through to finish. */ | |
1898 | break; | |
1899 | case REF_TRANSACTION_CLOSED: | |
1900 | die("BUG: commit called on a closed reference transaction"); | |
1901 | break; | |
1902 | default: | |
1903 | die("BUG: unexpected reference transaction state"); | |
1904 | break; | |
1905 | } | |
1906 | ||
1907 | return refs->be->transaction_finish(refs, transaction, err); | |
127b42a1 | 1908 | } |
62665823 | 1909 | |
7d2df051 NTND |
1910 | int refs_verify_refname_available(struct ref_store *refs, |
1911 | const char *refname, | |
b05855b5 | 1912 | const struct string_list *extras, |
7d2df051 NTND |
1913 | const struct string_list *skip, |
1914 | struct strbuf *err) | |
62665823 | 1915 | { |
b05855b5 MH |
1916 | const char *slash; |
1917 | const char *extra_refname; | |
1918 | struct strbuf dirname = STRBUF_INIT; | |
1919 | struct strbuf referent = STRBUF_INIT; | |
1920 | struct object_id oid; | |
1921 | unsigned int type; | |
1922 | struct ref_iterator *iter; | |
1923 | int ok; | |
1924 | int ret = -1; | |
1925 | ||
1926 | /* | |
1927 | * For the sake of comments in this function, suppose that | |
1928 | * refname is "refs/foo/bar". | |
1929 | */ | |
1930 | ||
1931 | assert(err); | |
1932 | ||
1933 | strbuf_grow(&dirname, strlen(refname) + 1); | |
1934 | for (slash = strchr(refname, '/'); slash; slash = strchr(slash + 1, '/')) { | |
1935 | /* Expand dirname to the new prefix, not including the trailing slash: */ | |
1936 | strbuf_add(&dirname, refname + dirname.len, slash - refname - dirname.len); | |
1937 | ||
1938 | /* | |
1939 | * We are still at a leading dir of the refname (e.g., | |
1940 | * "refs/foo"; if there is a reference with that name, | |
1941 | * it is a conflict, *unless* it is in skip. | |
1942 | */ | |
1943 | if (skip && string_list_has_string(skip, dirname.buf)) | |
1944 | continue; | |
1945 | ||
99afe91a | 1946 | if (!refs_read_raw_ref(refs, dirname.buf, &oid, &referent, &type)) { |
b05855b5 MH |
1947 | strbuf_addf(err, "'%s' exists; cannot create '%s'", |
1948 | dirname.buf, refname); | |
1949 | goto cleanup; | |
1950 | } | |
1951 | ||
1952 | if (extras && string_list_has_string(extras, dirname.buf)) { | |
1953 | strbuf_addf(err, "cannot process '%s' and '%s' at the same time", | |
1954 | refname, dirname.buf); | |
1955 | goto cleanup; | |
1956 | } | |
1957 | } | |
1958 | ||
1959 | /* | |
1960 | * We are at the leaf of our refname (e.g., "refs/foo/bar"). | |
1961 | * There is no point in searching for a reference with that | |
1962 | * name, because a refname isn't considered to conflict with | |
1963 | * itself. But we still need to check for references whose | |
1964 | * names are in the "refs/foo/bar/" namespace, because they | |
1965 | * *do* conflict. | |
1966 | */ | |
1967 | strbuf_addstr(&dirname, refname + dirname.len); | |
1968 | strbuf_addch(&dirname, '/'); | |
1969 | ||
1970 | iter = refs_ref_iterator_begin(refs, dirname.buf, 0, | |
1971 | DO_FOR_EACH_INCLUDE_BROKEN); | |
1972 | while ((ok = ref_iterator_advance(iter)) == ITER_OK) { | |
1973 | if (skip && | |
1974 | string_list_has_string(skip, iter->refname)) | |
1975 | continue; | |
1976 | ||
1977 | strbuf_addf(err, "'%s' exists; cannot create '%s'", | |
1978 | iter->refname, refname); | |
1979 | ref_iterator_abort(iter); | |
1980 | goto cleanup; | |
1981 | } | |
1982 | ||
1983 | if (ok != ITER_DONE) | |
1984 | die("BUG: error while iterating over references"); | |
1985 | ||
1986 | extra_refname = find_descendant_ref(dirname.buf, extras, skip); | |
1987 | if (extra_refname) | |
1988 | strbuf_addf(err, "cannot process '%s' and '%s' at the same time", | |
1989 | refname, extra_refname); | |
1990 | else | |
1991 | ret = 0; | |
1992 | ||
1993 | cleanup: | |
1994 | strbuf_release(&referent); | |
1995 | strbuf_release(&dirname); | |
1996 | return ret; | |
62665823 | 1997 | } |
e3688bd6 | 1998 | |
7d2df051 | 1999 | int refs_for_each_reflog(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
e3688bd6 | 2000 | { |
e3688bd6 DT |
2001 | struct ref_iterator *iter; |
2002 | ||
2003 | iter = refs->be->reflog_iterator_begin(refs); | |
2004 | ||
2005 | return do_for_each_ref_iterator(iter, fn, cb_data); | |
2006 | } | |
2007 | ||
7d2df051 | 2008 | int for_each_reflog(each_ref_fn fn, void *cb_data) |
e3688bd6 | 2009 | { |
23a3f0cb | 2010 | return refs_for_each_reflog(get_main_ref_store(the_repository), fn, cb_data); |
7d2df051 | 2011 | } |
e3688bd6 | 2012 | |
7d2df051 NTND |
2013 | int refs_for_each_reflog_ent_reverse(struct ref_store *refs, |
2014 | const char *refname, | |
2015 | each_reflog_ent_fn fn, | |
2016 | void *cb_data) | |
2017 | { | |
e3688bd6 DT |
2018 | return refs->be->for_each_reflog_ent_reverse(refs, refname, |
2019 | fn, cb_data); | |
2020 | } | |
2021 | ||
7d2df051 NTND |
2022 | int for_each_reflog_ent_reverse(const char *refname, each_reflog_ent_fn fn, |
2023 | void *cb_data) | |
2024 | { | |
23a3f0cb | 2025 | return refs_for_each_reflog_ent_reverse(get_main_ref_store(the_repository), |
7d2df051 NTND |
2026 | refname, fn, cb_data); |
2027 | } | |
2028 | ||
2029 | int refs_for_each_reflog_ent(struct ref_store *refs, const char *refname, | |
2030 | each_reflog_ent_fn fn, void *cb_data) | |
2031 | { | |
2032 | return refs->be->for_each_reflog_ent(refs, refname, fn, cb_data); | |
2033 | } | |
2034 | ||
e3688bd6 DT |
2035 | int for_each_reflog_ent(const char *refname, each_reflog_ent_fn fn, |
2036 | void *cb_data) | |
2037 | { | |
23a3f0cb | 2038 | return refs_for_each_reflog_ent(get_main_ref_store(the_repository), refname, |
7d2df051 NTND |
2039 | fn, cb_data); |
2040 | } | |
e3688bd6 | 2041 | |
7d2df051 NTND |
2042 | int refs_reflog_exists(struct ref_store *refs, const char *refname) |
2043 | { | |
2044 | return refs->be->reflog_exists(refs, refname); | |
e3688bd6 DT |
2045 | } |
2046 | ||
2047 | int reflog_exists(const char *refname) | |
2048 | { | |
23a3f0cb | 2049 | return refs_reflog_exists(get_main_ref_store(the_repository), refname); |
7d2df051 | 2050 | } |
e3688bd6 | 2051 | |
7d2df051 NTND |
2052 | int refs_create_reflog(struct ref_store *refs, const char *refname, |
2053 | int force_create, struct strbuf *err) | |
2054 | { | |
2055 | return refs->be->create_reflog(refs, refname, force_create, err); | |
e3688bd6 DT |
2056 | } |
2057 | ||
2058 | int safe_create_reflog(const char *refname, int force_create, | |
2059 | struct strbuf *err) | |
2060 | { | |
23a3f0cb | 2061 | return refs_create_reflog(get_main_ref_store(the_repository), refname, |
7d2df051 NTND |
2062 | force_create, err); |
2063 | } | |
e3688bd6 | 2064 | |
7d2df051 NTND |
2065 | int refs_delete_reflog(struct ref_store *refs, const char *refname) |
2066 | { | |
2067 | return refs->be->delete_reflog(refs, refname); | |
e3688bd6 DT |
2068 | } |
2069 | ||
2070 | int delete_reflog(const char *refname) | |
2071 | { | |
23a3f0cb | 2072 | return refs_delete_reflog(get_main_ref_store(the_repository), refname); |
7d2df051 | 2073 | } |
e3688bd6 | 2074 | |
7d2df051 | 2075 | int refs_reflog_expire(struct ref_store *refs, |
0155f710 | 2076 | const char *refname, const struct object_id *oid, |
7d2df051 NTND |
2077 | unsigned int flags, |
2078 | reflog_expiry_prepare_fn prepare_fn, | |
2079 | reflog_expiry_should_prune_fn should_prune_fn, | |
2080 | reflog_expiry_cleanup_fn cleanup_fn, | |
2081 | void *policy_cb_data) | |
2082 | { | |
0155f710 | 2083 | return refs->be->reflog_expire(refs, refname, oid, flags, |
7d2df051 NTND |
2084 | prepare_fn, should_prune_fn, |
2085 | cleanup_fn, policy_cb_data); | |
e3688bd6 DT |
2086 | } |
2087 | ||
0155f710 | 2088 | int reflog_expire(const char *refname, const struct object_id *oid, |
e3688bd6 DT |
2089 | unsigned int flags, |
2090 | reflog_expiry_prepare_fn prepare_fn, | |
2091 | reflog_expiry_should_prune_fn should_prune_fn, | |
2092 | reflog_expiry_cleanup_fn cleanup_fn, | |
2093 | void *policy_cb_data) | |
2094 | { | |
23a3f0cb | 2095 | return refs_reflog_expire(get_main_ref_store(the_repository), |
0155f710 | 2096 | refname, oid, flags, |
7d2df051 NTND |
2097 | prepare_fn, should_prune_fn, |
2098 | cleanup_fn, policy_cb_data); | |
e3688bd6 | 2099 | } |
fc681463 DT |
2100 | |
2101 | int initial_ref_transaction_commit(struct ref_transaction *transaction, | |
2102 | struct strbuf *err) | |
2103 | { | |
c0fe4e8b | 2104 | struct ref_store *refs = transaction->ref_store; |
fc681463 DT |
2105 | |
2106 | return refs->be->initial_transaction_commit(refs, transaction, err); | |
2107 | } | |
a27dcf89 | 2108 | |
64da4199 MH |
2109 | int refs_delete_refs(struct ref_store *refs, const char *msg, |
2110 | struct string_list *refnames, unsigned int flags) | |
a27dcf89 | 2111 | { |
64da4199 | 2112 | return refs->be->delete_refs(refs, msg, refnames, flags); |
a27dcf89 | 2113 | } |
9b6b40d9 | 2114 | |
64da4199 MH |
2115 | int delete_refs(const char *msg, struct string_list *refnames, |
2116 | unsigned int flags) | |
9b6b40d9 | 2117 | { |
23a3f0cb | 2118 | return refs_delete_refs(get_main_ref_store(the_repository), msg, refnames, flags); |
7d2df051 | 2119 | } |
9b6b40d9 | 2120 | |
7d2df051 NTND |
2121 | int refs_rename_ref(struct ref_store *refs, const char *oldref, |
2122 | const char *newref, const char *logmsg) | |
2123 | { | |
9b6b40d9 DT |
2124 | return refs->be->rename_ref(refs, oldref, newref, logmsg); |
2125 | } | |
7d2df051 NTND |
2126 | |
2127 | int rename_ref(const char *oldref, const char *newref, const char *logmsg) | |
2128 | { | |
23a3f0cb | 2129 | return refs_rename_ref(get_main_ref_store(the_repository), oldref, newref, logmsg); |
7d2df051 | 2130 | } |
52d59cc6 SD |
2131 | |
2132 | int refs_copy_existing_ref(struct ref_store *refs, const char *oldref, | |
2133 | const char *newref, const char *logmsg) | |
2134 | { | |
2135 | return refs->be->copy_ref(refs, oldref, newref, logmsg); | |
2136 | } | |
2137 | ||
2138 | int copy_existing_ref(const char *oldref, const char *newref, const char *logmsg) | |
2139 | { | |
23a3f0cb | 2140 | return refs_copy_existing_ref(get_main_ref_store(the_repository), oldref, newref, logmsg); |
52d59cc6 | 2141 | } |