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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" |
b4be7410 | 16 | #include "argv-array.h" |
23a3f0cb | 17 | #include "repository.h" |
3581d793 | 18 | |
3dce444f RS |
19 | /* |
20 | * List of all available backends | |
21 | */ | |
22 | static struct ref_storage_be *refs_backends = &refs_be_files; | |
23 | ||
24 | static struct ref_storage_be *find_ref_storage_backend(const char *name) | |
25 | { | |
26 | struct ref_storage_be *be; | |
27 | for (be = refs_backends; be; be = be->next) | |
28 | if (!strcmp(be->name, name)) | |
29 | return be; | |
30 | return NULL; | |
31 | } | |
32 | ||
33 | int ref_storage_backend_exists(const char *name) | |
34 | { | |
35 | return find_ref_storage_backend(name) != NULL; | |
36 | } | |
37 | ||
bc5fd6d3 | 38 | /* |
dde8a902 DT |
39 | * How to handle various characters in refnames: |
40 | * 0: An acceptable character for refs | |
5e650228 JH |
41 | * 1: End-of-component |
42 | * 2: ., look for a preceding . to reject .. in refs | |
43 | * 3: {, look for a preceding @ to reject @{ in refs | |
53a8555e | 44 | * 4: A bad character: ASCII control characters, and |
cd377f45 JK |
45 | * ":", "?", "[", "\", "^", "~", SP, or TAB |
46 | * 5: *, reject unless REFNAME_REFSPEC_PATTERN is set | |
dde8a902 DT |
47 | */ |
48 | static unsigned char refname_disposition[256] = { | |
5e650228 JH |
49 | 1, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, |
50 | 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, | |
cd377f45 | 51 | 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5, 0, 0, 0, 2, 1, |
5e650228 | 52 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0, 0, 0, 4, |
dde8a902 | 53 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
5e650228 JH |
54 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 4, 0, 4, 0, |
55 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
56 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 4, 4 | |
dde8a902 DT |
57 | }; |
58 | ||
59 | /* | |
60 | * Try to read one refname component from the front of refname. | |
61 | * Return the length of the component found, or -1 if the component is | |
62 | * not legal. It is legal if it is something reasonable to have under | |
63 | * ".git/refs/"; We do not like it if: | |
bc5fd6d3 MH |
64 | * |
65 | * - any path component of it begins with ".", or | |
66 | * - it has double dots "..", or | |
53a8555e | 67 | * - it has ASCII control characters, or |
cd377f45 JK |
68 | * - it has ":", "?", "[", "\", "^", "~", SP, or TAB anywhere, or |
69 | * - it has "*" anywhere unless REFNAME_REFSPEC_PATTERN is set, or | |
53a8555e JK |
70 | * - it ends with a "/", or |
71 | * - it ends with ".lock", or | |
72 | * - it contains a "@{" portion | |
bc5fd6d3 | 73 | */ |
cd377f45 | 74 | static int check_refname_component(const char *refname, int *flags) |
bc5fd6d3 MH |
75 | { |
76 | const char *cp; | |
77 | char last = '\0'; | |
78 | ||
79 | for (cp = refname; ; cp++) { | |
dde8a902 DT |
80 | int ch = *cp & 255; |
81 | unsigned char disp = refname_disposition[ch]; | |
82 | switch (disp) { | |
5e650228 | 83 | case 1: |
dde8a902 | 84 | goto out; |
5e650228 | 85 | case 2: |
dde8a902 DT |
86 | if (last == '.') |
87 | return -1; /* Refname contains "..". */ | |
88 | break; | |
5e650228 | 89 | case 3: |
dde8a902 DT |
90 | if (last == '@') |
91 | return -1; /* Refname contains "@{". */ | |
bc5fd6d3 | 92 | break; |
5e650228 | 93 | case 4: |
dde8a902 | 94 | return -1; |
cd377f45 JK |
95 | case 5: |
96 | if (!(*flags & REFNAME_REFSPEC_PATTERN)) | |
97 | return -1; /* refspec can't be a pattern */ | |
98 | ||
99 | /* | |
100 | * Unset the pattern flag so that we only accept | |
101 | * a single asterisk for one side of refspec. | |
102 | */ | |
103 | *flags &= ~ REFNAME_REFSPEC_PATTERN; | |
104 | break; | |
dde8a902 | 105 | } |
bc5fd6d3 MH |
106 | last = ch; |
107 | } | |
dde8a902 | 108 | out: |
bc5fd6d3 | 109 | if (cp == refname) |
dac529e4 | 110 | return 0; /* Component has zero length. */ |
f3cc52d8 JN |
111 | if (refname[0] == '.') |
112 | return -1; /* Component starts with '.'. */ | |
7108ad23 MH |
113 | if (cp - refname >= LOCK_SUFFIX_LEN && |
114 | !memcmp(cp - LOCK_SUFFIX_LEN, LOCK_SUFFIX, LOCK_SUFFIX_LEN)) | |
bc5fd6d3 MH |
115 | return -1; /* Refname ends with ".lock". */ |
116 | return cp - refname; | |
117 | } | |
118 | ||
5e650228 | 119 | int check_refname_format(const char *refname, int flags) |
bc5fd6d3 MH |
120 | { |
121 | int component_len, component_count = 0; | |
122 | ||
9ba89f48 FC |
123 | if (!strcmp(refname, "@")) |
124 | /* Refname is a single character '@'. */ | |
125 | return -1; | |
126 | ||
bc5fd6d3 MH |
127 | while (1) { |
128 | /* We are at the start of a path component. */ | |
cd377f45 JK |
129 | component_len = check_refname_component(refname, &flags); |
130 | if (component_len <= 0) | |
131 | return -1; | |
132 | ||
bc5fd6d3 MH |
133 | component_count++; |
134 | if (refname[component_len] == '\0') | |
135 | break; | |
136 | /* Skip to next component. */ | |
137 | refname += component_len + 1; | |
138 | } | |
139 | ||
140 | if (refname[component_len - 1] == '.') | |
141 | return -1; /* Refname ends with '.'. */ | |
142 | if (!(flags & REFNAME_ALLOW_ONELEVEL) && component_count < 2) | |
143 | return -1; /* Refname has only one component. */ | |
144 | return 0; | |
145 | } | |
146 | ||
4cb77009 | 147 | int refname_is_safe(const char *refname) |
d0f810f0 | 148 | { |
39950fef MH |
149 | const char *rest; |
150 | ||
151 | if (skip_prefix(refname, "refs/", &rest)) { | |
d0f810f0 RS |
152 | char *buf; |
153 | int result; | |
e40f3557 MH |
154 | size_t restlen = strlen(rest); |
155 | ||
156 | /* rest must not be empty, or start or end with "/" */ | |
157 | if (!restlen || *rest == '/' || rest[restlen - 1] == '/') | |
158 | return 0; | |
d0f810f0 | 159 | |
d0f810f0 RS |
160 | /* |
161 | * Does the refname try to escape refs/? | |
162 | * For example: refs/foo/../bar is safe but refs/foo/../../bar | |
163 | * is not. | |
164 | */ | |
e40f3557 MH |
165 | buf = xmallocz(restlen); |
166 | result = !normalize_path_copy(buf, rest) && !strcmp(buf, rest); | |
d0f810f0 RS |
167 | free(buf); |
168 | return result; | |
169 | } | |
35db25c6 MH |
170 | |
171 | do { | |
d0f810f0 RS |
172 | if (!isupper(*refname) && *refname != '_') |
173 | return 0; | |
174 | refname++; | |
35db25c6 | 175 | } while (*refname); |
d0f810f0 RS |
176 | return 1; |
177 | } | |
178 | ||
67be7c5a MH |
179 | /* |
180 | * Return true if refname, which has the specified oid and flags, can | |
181 | * be resolved to an object in the database. If the referred-to object | |
182 | * does not exist, emit a warning and return false. | |
183 | */ | |
184 | int ref_resolves_to_object(const char *refname, | |
185 | const struct object_id *oid, | |
186 | unsigned int flags) | |
187 | { | |
188 | if (flags & REF_ISBROKEN) | |
189 | return 0; | |
190 | if (!has_sha1_file(oid->hash)) { | |
191 | error("%s does not point to a valid object!", refname); | |
192 | return 0; | |
193 | } | |
194 | return 1; | |
195 | } | |
196 | ||
7d2df051 NTND |
197 | char *refs_resolve_refdup(struct ref_store *refs, |
198 | const char *refname, int resolve_flags, | |
0f2dc722 | 199 | struct object_id *oid, int *flags) |
7d2df051 NTND |
200 | { |
201 | const char *result; | |
202 | ||
203 | result = refs_resolve_ref_unsafe(refs, refname, resolve_flags, | |
49e61479 | 204 | oid, flags); |
7d2df051 NTND |
205 | return xstrdup_or_null(result); |
206 | } | |
207 | ||
7bd9bcf3 | 208 | char *resolve_refdup(const char *refname, int resolve_flags, |
0f2dc722 | 209 | struct object_id *oid, int *flags) |
e1e22e37 | 210 | { |
23a3f0cb | 211 | return refs_resolve_refdup(get_main_ref_store(the_repository), |
7d2df051 | 212 | refname, resolve_flags, |
0f2dc722 | 213 | oid, flags); |
cddc4258 MH |
214 | } |
215 | ||
7bd9bcf3 MH |
216 | /* The argument to filter_refs */ |
217 | struct ref_filter { | |
218 | const char *pattern; | |
219 | each_ref_fn *fn; | |
220 | void *cb_data; | |
221 | }; | |
432ad41e | 222 | |
7d2df051 | 223 | int refs_read_ref_full(struct ref_store *refs, const char *refname, |
34c290a6 | 224 | int resolve_flags, struct object_id *oid, int *flags) |
732134ed | 225 | { |
49e61479 | 226 | if (refs_resolve_ref_unsafe(refs, refname, resolve_flags, oid, flags)) |
7bd9bcf3 MH |
227 | return 0; |
228 | return -1; | |
732134ed MH |
229 | } |
230 | ||
34c290a6 | 231 | int read_ref_full(const char *refname, int resolve_flags, struct object_id *oid, int *flags) |
7d2df051 | 232 | { |
23a3f0cb | 233 | return refs_read_ref_full(get_main_ref_store(the_repository), refname, |
34c290a6 | 234 | resolve_flags, oid, flags); |
7d2df051 NTND |
235 | } |
236 | ||
34c290a6 | 237 | int read_ref(const char *refname, struct object_id *oid) |
cddc4258 | 238 | { |
34c290a6 | 239 | return read_ref_full(refname, RESOLVE_REF_READING, oid, NULL); |
c774aab9 JP |
240 | } |
241 | ||
7bd9bcf3 | 242 | int ref_exists(const char *refname) |
bc5fd6d3 | 243 | { |
744c040b | 244 | return !!resolve_ref_unsafe(refname, RESOLVE_REF_READING, NULL, NULL); |
bc5fd6d3 MH |
245 | } |
246 | ||
65516f58 RA |
247 | static int match_ref_pattern(const char *refname, |
248 | const struct string_list_item *item) | |
249 | { | |
250 | int matched = 0; | |
251 | if (item->util == NULL) { | |
252 | if (!wildmatch(item->string, refname, 0)) | |
253 | matched = 1; | |
254 | } else { | |
255 | const char *rest; | |
256 | if (skip_prefix(refname, item->string, &rest) && | |
257 | (!*rest || *rest == '/')) | |
258 | matched = 1; | |
259 | } | |
260 | return matched; | |
261 | } | |
262 | ||
263 | int ref_filter_match(const char *refname, | |
264 | const struct string_list *include_patterns, | |
265 | const struct string_list *exclude_patterns) | |
266 | { | |
267 | struct string_list_item *item; | |
268 | ||
269 | if (exclude_patterns && exclude_patterns->nr) { | |
270 | for_each_string_list_item(item, exclude_patterns) { | |
271 | if (match_ref_pattern(refname, item)) | |
272 | return 0; | |
273 | } | |
274 | } | |
275 | ||
276 | if (include_patterns && include_patterns->nr) { | |
277 | int found = 0; | |
278 | for_each_string_list_item(item, include_patterns) { | |
279 | if (match_ref_pattern(refname, item)) { | |
280 | found = 1; | |
281 | break; | |
282 | } | |
283 | } | |
284 | ||
285 | if (!found) | |
286 | return 0; | |
287 | } | |
288 | return 1; | |
289 | } | |
290 | ||
7bd9bcf3 MH |
291 | static int filter_refs(const char *refname, const struct object_id *oid, |
292 | int flags, void *data) | |
432ad41e | 293 | { |
7bd9bcf3 MH |
294 | struct ref_filter *filter = (struct ref_filter *)data; |
295 | ||
55d34269 | 296 | if (wildmatch(filter->pattern, refname, 0)) |
7bd9bcf3 MH |
297 | return 0; |
298 | return filter->fn(refname, oid, flags, filter->cb_data); | |
432ad41e MH |
299 | } |
300 | ||
ac2ed0d7 | 301 | enum peel_status peel_object(const struct object_id *name, struct object_id *oid) |
c774aab9 | 302 | { |
ac2ed0d7 | 303 | struct object *o = lookup_unknown_object(name->hash); |
c774aab9 | 304 | |
7bd9bcf3 | 305 | if (o->type == OBJ_NONE) { |
0df8e965 | 306 | int type = oid_object_info(the_repository, name, NULL); |
7bd9bcf3 MH |
307 | if (type < 0 || !object_as_type(o, type, 0)) |
308 | return PEEL_INVALID; | |
309 | } | |
bc5fd6d3 | 310 | |
7bd9bcf3 MH |
311 | if (o->type != OBJ_TAG) |
312 | return PEEL_NON_TAG; | |
e1980c9d | 313 | |
7bd9bcf3 MH |
314 | o = deref_tag_noverify(o); |
315 | if (!o) | |
316 | return PEEL_INVALID; | |
317 | ||
ac2ed0d7 | 318 | oidcpy(oid, &o->oid); |
7bd9bcf3 | 319 | return PEEL_PEELED; |
e1980c9d JH |
320 | } |
321 | ||
7bd9bcf3 MH |
322 | struct warn_if_dangling_data { |
323 | FILE *fp; | |
324 | const char *refname; | |
325 | const struct string_list *refnames; | |
326 | const char *msg_fmt; | |
327 | }; | |
bc5fd6d3 | 328 | |
7bd9bcf3 MH |
329 | static int warn_if_dangling_symref(const char *refname, const struct object_id *oid, |
330 | int flags, void *cb_data) | |
331 | { | |
332 | struct warn_if_dangling_data *d = cb_data; | |
333 | const char *resolves_to; | |
bc5fd6d3 | 334 | |
7bd9bcf3 MH |
335 | if (!(flags & REF_ISSYMREF)) |
336 | return 0; | |
bc5fd6d3 | 337 | |
744c040b | 338 | resolves_to = resolve_ref_unsafe(refname, 0, NULL, NULL); |
7bd9bcf3 MH |
339 | if (!resolves_to |
340 | || (d->refname | |
341 | ? strcmp(resolves_to, d->refname) | |
342 | : !string_list_has_string(d->refnames, resolves_to))) { | |
343 | return 0; | |
344 | } | |
bc5fd6d3 | 345 | |
7bd9bcf3 MH |
346 | fprintf(d->fp, d->msg_fmt, refname); |
347 | fputc('\n', d->fp); | |
348 | return 0; | |
bc5fd6d3 MH |
349 | } |
350 | ||
7bd9bcf3 | 351 | void warn_dangling_symref(FILE *fp, const char *msg_fmt, const char *refname) |
f348ac92 | 352 | { |
7bd9bcf3 MH |
353 | struct warn_if_dangling_data data; |
354 | ||
355 | data.fp = fp; | |
356 | data.refname = refname; | |
357 | data.refnames = NULL; | |
358 | data.msg_fmt = msg_fmt; | |
359 | for_each_rawref(warn_if_dangling_symref, &data); | |
f348ac92 MH |
360 | } |
361 | ||
7bd9bcf3 | 362 | void warn_dangling_symrefs(FILE *fp, const char *msg_fmt, const struct string_list *refnames) |
432ad41e | 363 | { |
7bd9bcf3 | 364 | struct warn_if_dangling_data data; |
432ad41e | 365 | |
7bd9bcf3 MH |
366 | data.fp = fp; |
367 | data.refname = NULL; | |
368 | data.refnames = refnames; | |
369 | data.msg_fmt = msg_fmt; | |
370 | for_each_rawref(warn_if_dangling_symref, &data); | |
432ad41e MH |
371 | } |
372 | ||
7d2df051 NTND |
373 | int refs_for_each_tag_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
374 | { | |
375 | return refs_for_each_ref_in(refs, "refs/tags/", fn, cb_data); | |
376 | } | |
377 | ||
7bd9bcf3 | 378 | int for_each_tag_ref(each_ref_fn fn, void *cb_data) |
432ad41e | 379 | { |
23a3f0cb | 380 | return refs_for_each_tag_ref(get_main_ref_store(the_repository), fn, cb_data); |
432ad41e MH |
381 | } |
382 | ||
7d2df051 NTND |
383 | int refs_for_each_branch_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
384 | { | |
385 | return refs_for_each_ref_in(refs, "refs/heads/", fn, cb_data); | |
432ad41e MH |
386 | } |
387 | ||
7bd9bcf3 | 388 | int for_each_branch_ref(each_ref_fn fn, void *cb_data) |
432ad41e | 389 | { |
23a3f0cb | 390 | return refs_for_each_branch_ref(get_main_ref_store(the_repository), fn, cb_data); |
432ad41e MH |
391 | } |
392 | ||
7d2df051 NTND |
393 | int refs_for_each_remote_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
394 | { | |
395 | return refs_for_each_ref_in(refs, "refs/remotes/", fn, cb_data); | |
202a56a9 | 396 | } |
432ad41e | 397 | |
7bd9bcf3 | 398 | int for_each_remote_ref(each_ref_fn fn, void *cb_data) |
e9c4c111 | 399 | { |
23a3f0cb | 400 | return refs_for_each_remote_ref(get_main_ref_store(the_repository), fn, cb_data); |
202a56a9 MH |
401 | } |
402 | ||
7bd9bcf3 MH |
403 | int head_ref_namespaced(each_ref_fn fn, void *cb_data) |
404 | { | |
405 | struct strbuf buf = STRBUF_INIT; | |
406 | int ret = 0; | |
407 | struct object_id oid; | |
408 | int flag; | |
c774aab9 | 409 | |
7bd9bcf3 | 410 | strbuf_addf(&buf, "%sHEAD", get_git_namespace()); |
34c290a6 | 411 | if (!read_ref_full(buf.buf, RESOLVE_REF_READING, &oid, &flag)) |
7bd9bcf3 MH |
412 | ret = fn(buf.buf, &oid, flag, cb_data); |
413 | strbuf_release(&buf); | |
c774aab9 | 414 | |
7bd9bcf3 | 415 | return ret; |
e9c4c111 | 416 | } |
c774aab9 | 417 | |
65516f58 RA |
418 | void normalize_glob_ref(struct string_list_item *item, const char *prefix, |
419 | const char *pattern) | |
420 | { | |
421 | struct strbuf normalized_pattern = STRBUF_INIT; | |
422 | ||
423 | if (*pattern == '/') | |
424 | BUG("pattern must not start with '/'"); | |
425 | ||
426 | if (prefix) { | |
427 | strbuf_addstr(&normalized_pattern, prefix); | |
428 | } | |
429 | else if (!starts_with(pattern, "refs/")) | |
430 | strbuf_addstr(&normalized_pattern, "refs/"); | |
431 | strbuf_addstr(&normalized_pattern, pattern); | |
432 | strbuf_strip_suffix(&normalized_pattern, "/"); | |
433 | ||
434 | item->string = strbuf_detach(&normalized_pattern, NULL); | |
435 | item->util = has_glob_specials(pattern) ? NULL : item->string; | |
436 | strbuf_release(&normalized_pattern); | |
437 | } | |
438 | ||
7bd9bcf3 MH |
439 | int for_each_glob_ref_in(each_ref_fn fn, const char *pattern, |
440 | const char *prefix, void *cb_data) | |
662428f4 | 441 | { |
7bd9bcf3 MH |
442 | struct strbuf real_pattern = STRBUF_INIT; |
443 | struct ref_filter filter; | |
444 | int ret; | |
d08bae7e | 445 | |
59556548 | 446 | if (!prefix && !starts_with(pattern, "refs/")) |
d08bae7e | 447 | strbuf_addstr(&real_pattern, "refs/"); |
b09fe971 IL |
448 | else if (prefix) |
449 | strbuf_addstr(&real_pattern, prefix); | |
d08bae7e IL |
450 | strbuf_addstr(&real_pattern, pattern); |
451 | ||
894a9d33 | 452 | if (!has_glob_specials(pattern)) { |
9517e6b8 | 453 | /* Append implied '/' '*' if not present. */ |
00b6c178 | 454 | strbuf_complete(&real_pattern, '/'); |
d08bae7e IL |
455 | /* No need to check for '*', there is none. */ |
456 | strbuf_addch(&real_pattern, '*'); | |
457 | } | |
458 | ||
459 | filter.pattern = real_pattern.buf; | |
460 | filter.fn = fn; | |
461 | filter.cb_data = cb_data; | |
462 | ret = for_each_ref(filter_refs, &filter); | |
463 | ||
464 | strbuf_release(&real_pattern); | |
465 | return ret; | |
466 | } | |
467 | ||
b09fe971 IL |
468 | int for_each_glob_ref(each_ref_fn fn, const char *pattern, void *cb_data) |
469 | { | |
470 | return for_each_glob_ref_in(fn, pattern, NULL, cb_data); | |
471 | } | |
472 | ||
4577e483 | 473 | const char *prettify_refname(const char *name) |
a9c37a72 | 474 | { |
3e5b36c6 SG |
475 | if (skip_prefix(name, "refs/heads/", &name) || |
476 | skip_prefix(name, "refs/tags/", &name) || | |
477 | skip_prefix(name, "refs/remotes/", &name)) | |
478 | ; /* nothing */ | |
479 | return name; | |
a9c37a72 DB |
480 | } |
481 | ||
54457fe5 | 482 | static const char *ref_rev_parse_rules[] = { |
79803322 SP |
483 | "%.*s", |
484 | "refs/%.*s", | |
485 | "refs/tags/%.*s", | |
486 | "refs/heads/%.*s", | |
487 | "refs/remotes/%.*s", | |
488 | "refs/remotes/%.*s/HEAD", | |
489 | NULL | |
490 | }; | |
491 | ||
54457fe5 | 492 | int refname_match(const char *abbrev_name, const char *full_name) |
79803322 SP |
493 | { |
494 | const char **p; | |
495 | const int abbrev_name_len = strlen(abbrev_name); | |
496 | ||
54457fe5 | 497 | for (p = ref_rev_parse_rules; *p; p++) { |
79803322 SP |
498 | if (!strcmp(full_name, mkpath(*p, abbrev_name_len, abbrev_name))) { |
499 | return 1; | |
500 | } | |
501 | } | |
502 | ||
503 | return 0; | |
504 | } | |
505 | ||
b4be7410 BW |
506 | /* |
507 | * Given a 'prefix' expand it by the rules in 'ref_rev_parse_rules' and add | |
508 | * the results to 'prefixes' | |
509 | */ | |
510 | void expand_ref_prefix(struct argv_array *prefixes, const char *prefix) | |
511 | { | |
512 | const char **p; | |
513 | int len = strlen(prefix); | |
514 | ||
515 | for (p = ref_rev_parse_rules; *p; p++) | |
516 | argv_array_pushf(prefixes, *p, len, prefix); | |
517 | } | |
518 | ||
ff74f7f1 JH |
519 | /* |
520 | * *string and *len will only be substituted, and *string returned (for | |
521 | * later free()ing) if the string passed in is a magic short-hand form | |
522 | * to name a branch. | |
523 | */ | |
524 | static char *substitute_branch_name(const char **string, int *len) | |
525 | { | |
526 | struct strbuf buf = STRBUF_INIT; | |
0e9f62da | 527 | int ret = interpret_branch_name(*string, *len, &buf, 0); |
ff74f7f1 JH |
528 | |
529 | if (ret == *len) { | |
530 | size_t size; | |
531 | *string = strbuf_detach(&buf, &size); | |
532 | *len = size; | |
533 | return (char *)*string; | |
534 | } | |
535 | ||
536 | return NULL; | |
537 | } | |
538 | ||
cca5fa64 | 539 | int dwim_ref(const char *str, int len, struct object_id *oid, char **ref) |
ff74f7f1 JH |
540 | { |
541 | char *last_branch = substitute_branch_name(&str, &len); | |
cca5fa64 | 542 | int refs_found = expand_ref(str, len, oid, ref); |
41da7111 NTND |
543 | free(last_branch); |
544 | return refs_found; | |
545 | } | |
546 | ||
cca5fa64 | 547 | int expand_ref(const char *str, int len, struct object_id *oid, char **ref) |
41da7111 | 548 | { |
ff74f7f1 JH |
549 | const char **p, *r; |
550 | int refs_found = 0; | |
6cd4a898 | 551 | struct strbuf fullref = STRBUF_INIT; |
ff74f7f1 JH |
552 | |
553 | *ref = NULL; | |
554 | for (p = ref_rev_parse_rules; *p; p++) { | |
cca5fa64 | 555 | struct object_id oid_from_ref; |
556 | struct object_id *this_result; | |
ff74f7f1 JH |
557 | int flag; |
558 | ||
cca5fa64 | 559 | this_result = refs_found ? &oid_from_ref : oid; |
6cd4a898 JK |
560 | strbuf_reset(&fullref); |
561 | strbuf_addf(&fullref, *p, len, str); | |
562 | r = resolve_ref_unsafe(fullref.buf, RESOLVE_REF_READING, | |
49e61479 | 563 | this_result, &flag); |
ff74f7f1 JH |
564 | if (r) { |
565 | if (!refs_found++) | |
566 | *ref = xstrdup(r); | |
567 | if (!warn_ambiguous_refs) | |
568 | break; | |
6cd4a898 JK |
569 | } else if ((flag & REF_ISSYMREF) && strcmp(fullref.buf, "HEAD")) { |
570 | warning("ignoring dangling symref %s.", fullref.buf); | |
571 | } else if ((flag & REF_ISBROKEN) && strchr(fullref.buf, '/')) { | |
572 | warning("ignoring broken ref %s.", fullref.buf); | |
55956350 | 573 | } |
ff74f7f1 | 574 | } |
6cd4a898 | 575 | strbuf_release(&fullref); |
ff74f7f1 JH |
576 | return refs_found; |
577 | } | |
578 | ||
334dc52f | 579 | int dwim_log(const char *str, int len, struct object_id *oid, char **log) |
ff74f7f1 JH |
580 | { |
581 | char *last_branch = substitute_branch_name(&str, &len); | |
582 | const char **p; | |
583 | int logs_found = 0; | |
6cd4a898 | 584 | struct strbuf path = STRBUF_INIT; |
ff74f7f1 JH |
585 | |
586 | *log = NULL; | |
587 | for (p = ref_rev_parse_rules; *p; p++) { | |
334dc52f | 588 | struct object_id hash; |
ff74f7f1 JH |
589 | const char *ref, *it; |
590 | ||
6cd4a898 JK |
591 | strbuf_reset(&path); |
592 | strbuf_addf(&path, *p, len, str); | |
593 | ref = resolve_ref_unsafe(path.buf, RESOLVE_REF_READING, | |
49e61479 | 594 | &hash, NULL); |
ff74f7f1 JH |
595 | if (!ref) |
596 | continue; | |
6cd4a898 JK |
597 | if (reflog_exists(path.buf)) |
598 | it = path.buf; | |
599 | else if (strcmp(ref, path.buf) && reflog_exists(ref)) | |
ff74f7f1 JH |
600 | it = ref; |
601 | else | |
602 | continue; | |
603 | if (!logs_found++) { | |
604 | *log = xstrdup(it); | |
334dc52f | 605 | oidcpy(oid, &hash); |
ff74f7f1 | 606 | } |
7bd9bcf3 MH |
607 | if (!warn_ambiguous_refs) |
608 | break; | |
c0277d15 | 609 | } |
6cd4a898 | 610 | strbuf_release(&path); |
7bd9bcf3 MH |
611 | free(last_branch); |
612 | return logs_found; | |
2ddb5d17 BK |
613 | } |
614 | ||
266b1827 DT |
615 | static int is_per_worktree_ref(const char *refname) |
616 | { | |
ce414b33 | 617 | return !strcmp(refname, "HEAD") || |
a9be29c9 JS |
618 | starts_with(refname, "refs/bisect/") || |
619 | starts_with(refname, "refs/rewritten/"); | |
266b1827 DT |
620 | } |
621 | ||
622 | static int is_pseudoref_syntax(const char *refname) | |
623 | { | |
624 | const char *c; | |
625 | ||
626 | for (c = refname; *c; c++) { | |
627 | if (!isupper(*c) && *c != '-' && *c != '_') | |
628 | return 0; | |
629 | } | |
630 | ||
631 | return 1; | |
632 | } | |
633 | ||
634 | enum ref_type ref_type(const char *refname) | |
635 | { | |
636 | if (is_per_worktree_ref(refname)) | |
637 | return REF_TYPE_PER_WORKTREE; | |
638 | if (is_pseudoref_syntax(refname)) | |
639 | return REF_TYPE_PSEUDOREF; | |
640 | return REF_TYPE_NORMAL; | |
641 | } | |
642 | ||
4ff0f01c MH |
643 | long get_files_ref_lock_timeout_ms(void) |
644 | { | |
645 | static int configured = 0; | |
646 | ||
647 | /* The default timeout is 100 ms: */ | |
648 | static int timeout_ms = 100; | |
649 | ||
650 | if (!configured) { | |
651 | git_config_get_int("core.filesreflocktimeout", &timeout_ms); | |
652 | configured = 1; | |
653 | } | |
654 | ||
655 | return timeout_ms; | |
656 | } | |
657 | ||
ae077771 | 658 | static int write_pseudoref(const char *pseudoref, const struct object_id *oid, |
659 | const struct object_id *old_oid, struct strbuf *err) | |
74ec19d4 DT |
660 | { |
661 | const char *filename; | |
662 | int fd; | |
01084515 | 663 | struct lock_file lock = LOCK_INIT; |
74ec19d4 DT |
664 | struct strbuf buf = STRBUF_INIT; |
665 | int ret = -1; | |
666 | ||
6ee18216 | 667 | if (!oid) |
668 | return 0; | |
669 | ||
ae077771 | 670 | strbuf_addf(&buf, "%s\n", oid_to_hex(oid)); |
74ec19d4 DT |
671 | |
672 | filename = git_path("%s", pseudoref); | |
01084515 | 673 | fd = hold_lock_file_for_update_timeout(&lock, filename, 0, |
4ff0f01c | 674 | get_files_ref_lock_timeout_ms()); |
74ec19d4 | 675 | if (fd < 0) { |
0568c8e9 | 676 | strbuf_addf(err, "could not open '%s' for writing: %s", |
74ec19d4 | 677 | filename, strerror(errno)); |
aeb014f6 | 678 | goto done; |
74ec19d4 DT |
679 | } |
680 | ||
ae077771 | 681 | if (old_oid) { |
682 | struct object_id actual_old_oid; | |
2c3aed13 | 683 | |
db0210d4 MÅ |
684 | if (read_ref(pseudoref, &actual_old_oid)) { |
685 | if (!is_null_oid(old_oid)) { | |
686 | strbuf_addf(err, "could not read ref '%s'", | |
687 | pseudoref); | |
688 | rollback_lock_file(&lock); | |
689 | goto done; | |
690 | } | |
691 | } else if (is_null_oid(old_oid)) { | |
692 | strbuf_addf(err, "ref '%s' already exists", | |
693 | pseudoref); | |
694 | rollback_lock_file(&lock); | |
695 | goto done; | |
696 | } else if (oidcmp(&actual_old_oid, old_oid)) { | |
c0bdd658 MÅ |
697 | strbuf_addf(err, "unexpected object ID when writing '%s'", |
698 | pseudoref); | |
74ec19d4 DT |
699 | rollback_lock_file(&lock); |
700 | goto done; | |
701 | } | |
702 | } | |
703 | ||
06f46f23 | 704 | if (write_in_full(fd, buf.buf, buf.len) < 0) { |
0568c8e9 | 705 | strbuf_addf(err, "could not write to '%s'", filename); |
74ec19d4 DT |
706 | rollback_lock_file(&lock); |
707 | goto done; | |
708 | } | |
709 | ||
710 | commit_lock_file(&lock); | |
711 | ret = 0; | |
712 | done: | |
713 | strbuf_release(&buf); | |
714 | return ret; | |
715 | } | |
716 | ||
2616a5e5 | 717 | static int delete_pseudoref(const char *pseudoref, const struct object_id *old_oid) |
74ec19d4 | 718 | { |
74ec19d4 DT |
719 | const char *filename; |
720 | ||
721 | filename = git_path("%s", pseudoref); | |
722 | ||
2616a5e5 | 723 | if (old_oid && !is_null_oid(old_oid)) { |
3c6fad4a | 724 | struct lock_file lock = LOCK_INIT; |
74ec19d4 | 725 | int fd; |
2616a5e5 | 726 | struct object_id actual_old_oid; |
74ec19d4 | 727 | |
4ff0f01c | 728 | fd = hold_lock_file_for_update_timeout( |
3c6fad4a | 729 | &lock, filename, 0, |
4ff0f01c | 730 | get_files_ref_lock_timeout_ms()); |
3c6fad4a MÅ |
731 | if (fd < 0) { |
732 | error_errno(_("could not open '%s' for writing"), | |
733 | filename); | |
734 | return -1; | |
735 | } | |
34c290a6 | 736 | if (read_ref(pseudoref, &actual_old_oid)) |
2c3aed13 | 737 | die("could not read ref '%s'", pseudoref); |
2616a5e5 | 738 | if (oidcmp(&actual_old_oid, old_oid)) { |
c0bdd658 MÅ |
739 | error("unexpected object ID when deleting '%s'", |
740 | pseudoref); | |
74ec19d4 DT |
741 | rollback_lock_file(&lock); |
742 | return -1; | |
a4c653df | 743 | } |
74ec19d4 DT |
744 | |
745 | unlink(filename); | |
746 | rollback_lock_file(&lock); | |
747 | } else { | |
748 | unlink(filename); | |
4bd18c43 | 749 | } |
a4c653df | 750 | |
4bd18c43 | 751 | return 0; |
95fc7512 | 752 | } |
d556fae2 | 753 | |
c0fe4e8b NTND |
754 | int refs_delete_ref(struct ref_store *refs, const char *msg, |
755 | const char *refname, | |
2616a5e5 | 756 | const struct object_id *old_oid, |
c0fe4e8b | 757 | unsigned int flags) |
41b625b0 | 758 | { |
7521cc46 | 759 | struct ref_transaction *transaction; |
a4c653df | 760 | struct strbuf err = STRBUF_INIT; |
8b5157e4 | 761 | |
c0fe4e8b | 762 | if (ref_type(refname) == REF_TYPE_PSEUDOREF) { |
23a3f0cb | 763 | assert(refs == get_main_ref_store(the_repository)); |
2616a5e5 | 764 | return delete_pseudoref(refname, old_oid); |
c0fe4e8b | 765 | } |
d48744d1 | 766 | |
c0fe4e8b | 767 | transaction = ref_store_transaction_begin(refs, &err); |
7521cc46 | 768 | if (!transaction || |
89f3bbdd | 769 | ref_transaction_delete(transaction, refname, old_oid, |
755b49ae | 770 | flags, msg, &err) || |
db7516ab | 771 | ref_transaction_commit(transaction, &err)) { |
7521cc46 RS |
772 | error("%s", err.buf); |
773 | ref_transaction_free(transaction); | |
774 | strbuf_release(&err); | |
c0277d15 | 775 | return 1; |
41b625b0 | 776 | } |
7bd9bcf3 MH |
777 | ref_transaction_free(transaction); |
778 | strbuf_release(&err); | |
b531394d BC |
779 | return 0; |
780 | } | |
41b625b0 | 781 | |
c0fe4e8b | 782 | int delete_ref(const char *msg, const char *refname, |
2616a5e5 | 783 | const struct object_id *old_oid, unsigned int flags) |
c0fe4e8b | 784 | { |
23a3f0cb | 785 | return refs_delete_ref(get_main_ref_store(the_repository), msg, refname, |
2616a5e5 | 786 | old_oid, flags); |
c0fe4e8b NTND |
787 | } |
788 | ||
4cb77009 | 789 | int copy_reflog_msg(char *buf, const char *msg) |
0ec29a47 JH |
790 | { |
791 | char *cp = buf; | |
792 | char c; | |
793 | int wasspace = 1; | |
8b5157e4 | 794 | |
0ec29a47 JH |
795 | *cp++ = '\t'; |
796 | while ((c = *msg++)) { | |
797 | if (wasspace && isspace(c)) | |
798 | continue; | |
799 | wasspace = isspace(c); | |
800 | if (wasspace) | |
801 | c = ' '; | |
802 | *cp++ = c; | |
a4c653df | 803 | } |
0ec29a47 JH |
804 | while (buf < cp && isspace(cp[-1])) |
805 | cp--; | |
806 | *cp++ = '\n'; | |
807 | return cp - buf; | |
808 | } | |
8b5157e4 | 809 | |
4cb77009 | 810 | int should_autocreate_reflog(const char *refname) |
4e2bef57 | 811 | { |
341fb286 CW |
812 | switch (log_all_ref_updates) { |
813 | case LOG_REFS_ALWAYS: | |
814 | return 1; | |
815 | case LOG_REFS_NORMAL: | |
816 | return starts_with(refname, "refs/heads/") || | |
817 | starts_with(refname, "refs/remotes/") || | |
818 | starts_with(refname, "refs/notes/") || | |
819 | !strcmp(refname, "HEAD"); | |
820 | default: | |
4e2bef57 | 821 | return 0; |
341fb286 | 822 | } |
4e2bef57 DT |
823 | } |
824 | ||
e7e0f26e | 825 | int is_branch(const char *refname) |
c3b0dec5 | 826 | { |
59556548 | 827 | return !strcmp(refname, "HEAD") || starts_with(refname, "refs/heads/"); |
41b625b0 NP |
828 | } |
829 | ||
4207ed28 RS |
830 | struct read_ref_at_cb { |
831 | const char *refname; | |
dddbad72 | 832 | timestamp_t at_time; |
4207ed28 RS |
833 | int cnt; |
834 | int reccnt; | |
8eb36d94 | 835 | struct object_id *oid; |
4207ed28 RS |
836 | int found_it; |
837 | ||
8eb36d94 | 838 | struct object_id ooid; |
839 | struct object_id noid; | |
4207ed28 | 840 | int tz; |
dddbad72 | 841 | timestamp_t date; |
4207ed28 | 842 | char **msg; |
dddbad72 | 843 | timestamp_t *cutoff_time; |
4207ed28 RS |
844 | int *cutoff_tz; |
845 | int *cutoff_cnt; | |
846 | }; | |
847 | ||
9461d272 | 848 | static int read_ref_at_ent(struct object_id *ooid, struct object_id *noid, |
dddbad72 | 849 | const char *email, timestamp_t timestamp, int tz, |
4207ed28 RS |
850 | const char *message, void *cb_data) |
851 | { | |
852 | struct read_ref_at_cb *cb = cb_data; | |
853 | ||
854 | cb->reccnt++; | |
855 | cb->tz = tz; | |
856 | cb->date = timestamp; | |
857 | ||
858 | if (timestamp <= cb->at_time || cb->cnt == 0) { | |
859 | if (cb->msg) | |
860 | *cb->msg = xstrdup(message); | |
861 | if (cb->cutoff_time) | |
862 | *cb->cutoff_time = timestamp; | |
863 | if (cb->cutoff_tz) | |
864 | *cb->cutoff_tz = tz; | |
865 | if (cb->cutoff_cnt) | |
866 | *cb->cutoff_cnt = cb->reccnt - 1; | |
867 | /* | |
78fb4579 | 868 | * we have not yet updated cb->[n|o]oid so they still |
4207ed28 RS |
869 | * hold the values for the previous record. |
870 | */ | |
8eb36d94 | 871 | if (!is_null_oid(&cb->ooid)) { |
872 | oidcpy(cb->oid, noid); | |
873 | if (oidcmp(&cb->ooid, noid)) | |
4207ed28 | 874 | warning("Log for ref %s has gap after %s.", |
a5481a6c | 875 | cb->refname, show_date(cb->date, cb->tz, DATE_MODE(RFC2822))); |
4207ed28 RS |
876 | } |
877 | else if (cb->date == cb->at_time) | |
8eb36d94 | 878 | oidcpy(cb->oid, noid); |
879 | else if (oidcmp(noid, cb->oid)) | |
4207ed28 RS |
880 | warning("Log for ref %s unexpectedly ended on %s.", |
881 | cb->refname, show_date(cb->date, cb->tz, | |
a5481a6c | 882 | DATE_MODE(RFC2822))); |
8eb36d94 | 883 | oidcpy(&cb->ooid, ooid); |
884 | oidcpy(&cb->noid, noid); | |
4207ed28 RS |
885 | cb->found_it = 1; |
886 | return 1; | |
887 | } | |
8eb36d94 | 888 | oidcpy(&cb->ooid, ooid); |
889 | oidcpy(&cb->noid, noid); | |
4207ed28 RS |
890 | if (cb->cnt > 0) |
891 | cb->cnt--; | |
892 | return 0; | |
893 | } | |
894 | ||
9461d272 | 895 | static int read_ref_at_ent_oldest(struct object_id *ooid, struct object_id *noid, |
dddbad72 | 896 | const char *email, timestamp_t timestamp, |
4207ed28 RS |
897 | int tz, const char *message, void *cb_data) |
898 | { | |
899 | struct read_ref_at_cb *cb = cb_data; | |
900 | ||
901 | if (cb->msg) | |
902 | *cb->msg = xstrdup(message); | |
903 | if (cb->cutoff_time) | |
904 | *cb->cutoff_time = timestamp; | |
905 | if (cb->cutoff_tz) | |
906 | *cb->cutoff_tz = tz; | |
907 | if (cb->cutoff_cnt) | |
908 | *cb->cutoff_cnt = cb->reccnt; | |
8eb36d94 | 909 | oidcpy(cb->oid, ooid); |
910 | if (is_null_oid(cb->oid)) | |
911 | oidcpy(cb->oid, noid); | |
4207ed28 RS |
912 | /* We just want the first entry */ |
913 | return 1; | |
16d7cc90 JH |
914 | } |
915 | ||
dddbad72 | 916 | int read_ref_at(const char *refname, unsigned int flags, timestamp_t at_time, int cnt, |
8eb36d94 | 917 | struct object_id *oid, char **msg, |
dddbad72 | 918 | timestamp_t *cutoff_time, int *cutoff_tz, int *cutoff_cnt) |
d556fae2 | 919 | { |
4207ed28 | 920 | struct read_ref_at_cb cb; |
d556fae2 | 921 | |
4207ed28 RS |
922 | memset(&cb, 0, sizeof(cb)); |
923 | cb.refname = refname; | |
924 | cb.at_time = at_time; | |
925 | cb.cnt = cnt; | |
926 | cb.msg = msg; | |
927 | cb.cutoff_time = cutoff_time; | |
928 | cb.cutoff_tz = cutoff_tz; | |
929 | cb.cutoff_cnt = cutoff_cnt; | |
8eb36d94 | 930 | cb.oid = oid; |
4207ed28 RS |
931 | |
932 | for_each_reflog_ent_reverse(refname, read_ref_at_ent, &cb); | |
933 | ||
c41a87dd | 934 | if (!cb.reccnt) { |
321c89bf | 935 | if (flags & GET_OID_QUIETLY) |
c41a87dd DA |
936 | exit(128); |
937 | else | |
938 | die("Log for %s is empty.", refname); | |
939 | } | |
4207ed28 RS |
940 | if (cb.found_it) |
941 | return 0; | |
942 | ||
943 | for_each_reflog_ent(refname, read_ref_at_ent_oldest, &cb); | |
d556fae2 | 944 | |
16d7cc90 | 945 | return 1; |
d556fae2 | 946 | } |
2ff81662 | 947 | |
c0fe4e8b NTND |
948 | struct ref_transaction *ref_store_transaction_begin(struct ref_store *refs, |
949 | struct strbuf *err) | |
caa4046c | 950 | { |
c0fe4e8b | 951 | struct ref_transaction *tr; |
5a603b04 JN |
952 | assert(err); |
953 | ||
c0fe4e8b NTND |
954 | tr = xcalloc(1, sizeof(struct ref_transaction)); |
955 | tr->ref_store = refs; | |
956 | return tr; | |
957 | } | |
958 | ||
959 | struct ref_transaction *ref_transaction_begin(struct strbuf *err) | |
960 | { | |
23a3f0cb | 961 | return ref_store_transaction_begin(get_main_ref_store(the_repository), err); |
caa4046c MH |
962 | } |
963 | ||
026bd1d3 | 964 | void ref_transaction_free(struct ref_transaction *transaction) |
caa4046c | 965 | { |
43a2dfde | 966 | size_t i; |
caa4046c | 967 | |
1b07255c RS |
968 | if (!transaction) |
969 | return; | |
970 | ||
30173b88 MH |
971 | switch (transaction->state) { |
972 | case REF_TRANSACTION_OPEN: | |
973 | case REF_TRANSACTION_CLOSED: | |
974 | /* OK */ | |
975 | break; | |
976 | case REF_TRANSACTION_PREPARED: | |
033abf97 | 977 | BUG("free called on a prepared reference transaction"); |
30173b88 MH |
978 | break; |
979 | default: | |
033abf97 | 980 | BUG("unexpected reference transaction state"); |
30173b88 MH |
981 | break; |
982 | } | |
983 | ||
db7516ab RS |
984 | for (i = 0; i < transaction->nr; i++) { |
985 | free(transaction->updates[i]->msg); | |
88615910 | 986 | free(transaction->updates[i]); |
db7516ab | 987 | } |
caa4046c MH |
988 | free(transaction->updates); |
989 | free(transaction); | |
990 | } | |
991 | ||
71564516 MH |
992 | struct ref_update *ref_transaction_add_update( |
993 | struct ref_transaction *transaction, | |
994 | const char *refname, unsigned int flags, | |
89f3bbdd | 995 | const struct object_id *new_oid, |
996 | const struct object_id *old_oid, | |
71564516 | 997 | const char *msg) |
caa4046c | 998 | { |
96ffc06f | 999 | struct ref_update *update; |
71564516 MH |
1000 | |
1001 | if (transaction->state != REF_TRANSACTION_OPEN) | |
033abf97 | 1002 | BUG("update called for transaction that is not open"); |
71564516 | 1003 | |
96ffc06f | 1004 | FLEX_ALLOC_STR(update, refname, refname); |
caa4046c MH |
1005 | ALLOC_GROW(transaction->updates, transaction->nr + 1, transaction->alloc); |
1006 | transaction->updates[transaction->nr++] = update; | |
71564516 MH |
1007 | |
1008 | update->flags = flags; | |
1009 | ||
1010 | if (flags & REF_HAVE_NEW) | |
89f3bbdd | 1011 | oidcpy(&update->new_oid, new_oid); |
71564516 | 1012 | if (flags & REF_HAVE_OLD) |
89f3bbdd | 1013 | oidcpy(&update->old_oid, old_oid); |
13092a91 | 1014 | update->msg = xstrdup_or_null(msg); |
caa4046c MH |
1015 | return update; |
1016 | } | |
1017 | ||
8e34800e RS |
1018 | int ref_transaction_update(struct ref_transaction *transaction, |
1019 | const char *refname, | |
89f3bbdd | 1020 | const struct object_id *new_oid, |
1021 | const struct object_id *old_oid, | |
1d147bdf | 1022 | unsigned int flags, const char *msg, |
8e34800e | 1023 | struct strbuf *err) |
caa4046c | 1024 | { |
5a603b04 JN |
1025 | assert(err); |
1026 | ||
89f3bbdd | 1027 | if ((new_oid && !is_null_oid(new_oid)) ? |
8a679de6 MH |
1028 | check_refname_format(refname, REFNAME_ALLOW_ONELEVEL) : |
1029 | !refname_is_safe(refname)) { | |
0568c8e9 | 1030 | strbuf_addf(err, "refusing to update ref with bad name '%s'", |
d0f810f0 RS |
1031 | refname); |
1032 | return -1; | |
1033 | } | |
1034 | ||
a9bbbcec MH |
1035 | if (flags & ~REF_TRANSACTION_UPDATE_ALLOWED_FLAGS) |
1036 | BUG("illegal flags 0x%x passed to ref_transaction_update()", flags); | |
c788c54c | 1037 | |
89f3bbdd | 1038 | flags |= (new_oid ? REF_HAVE_NEW : 0) | (old_oid ? REF_HAVE_OLD : 0); |
71564516 MH |
1039 | |
1040 | ref_transaction_add_update(transaction, refname, flags, | |
89f3bbdd | 1041 | new_oid, old_oid, msg); |
8e34800e | 1042 | return 0; |
caa4046c MH |
1043 | } |
1044 | ||
b416af5b RS |
1045 | int ref_transaction_create(struct ref_transaction *transaction, |
1046 | const char *refname, | |
89f3bbdd | 1047 | const struct object_id *new_oid, |
fec14ec3 | 1048 | unsigned int flags, const char *msg, |
b416af5b | 1049 | struct strbuf *err) |
caa4046c | 1050 | { |
89f3bbdd | 1051 | if (!new_oid || is_null_oid(new_oid)) |
033abf97 | 1052 | BUG("create called without valid new_oid"); |
89f3bbdd | 1053 | return ref_transaction_update(transaction, refname, new_oid, |
1054 | &null_oid, flags, msg, err); | |
caa4046c MH |
1055 | } |
1056 | ||
8c8bdc0d RS |
1057 | int ref_transaction_delete(struct ref_transaction *transaction, |
1058 | const char *refname, | |
89f3bbdd | 1059 | const struct object_id *old_oid, |
fb5a6bb6 | 1060 | unsigned int flags, const char *msg, |
8c8bdc0d | 1061 | struct strbuf *err) |
caa4046c | 1062 | { |
89f3bbdd | 1063 | if (old_oid && is_null_oid(old_oid)) |
033abf97 | 1064 | BUG("delete called with old_oid set to zeros"); |
1d147bdf | 1065 | return ref_transaction_update(transaction, refname, |
89f3bbdd | 1066 | &null_oid, old_oid, |
1d147bdf | 1067 | flags, msg, err); |
caa4046c MH |
1068 | } |
1069 | ||
16180334 MH |
1070 | int ref_transaction_verify(struct ref_transaction *transaction, |
1071 | const char *refname, | |
89f3bbdd | 1072 | const struct object_id *old_oid, |
16180334 MH |
1073 | unsigned int flags, |
1074 | struct strbuf *err) | |
1075 | { | |
89f3bbdd | 1076 | if (!old_oid) |
033abf97 | 1077 | BUG("verify called with old_oid set to NULL"); |
16180334 | 1078 | return ref_transaction_update(transaction, refname, |
89f3bbdd | 1079 | NULL, old_oid, |
16180334 MH |
1080 | flags, NULL, err); |
1081 | } | |
1082 | ||
c0fe4e8b | 1083 | int refs_update_ref(struct ref_store *refs, const char *msg, |
ae077771 | 1084 | const char *refname, const struct object_id *new_oid, |
1085 | const struct object_id *old_oid, unsigned int flags, | |
c0fe4e8b | 1086 | enum action_on_err onerr) |
4738a333 | 1087 | { |
74ec19d4 | 1088 | struct ref_transaction *t = NULL; |
b4d75ac1 | 1089 | struct strbuf err = STRBUF_INIT; |
74ec19d4 | 1090 | int ret = 0; |
b4d75ac1 | 1091 | |
74ec19d4 | 1092 | if (ref_type(refname) == REF_TYPE_PSEUDOREF) { |
23a3f0cb | 1093 | assert(refs == get_main_ref_store(the_repository)); |
ae077771 | 1094 | ret = write_pseudoref(refname, new_oid, old_oid, &err); |
74ec19d4 | 1095 | } else { |
c0fe4e8b | 1096 | t = ref_store_transaction_begin(refs, &err); |
74ec19d4 | 1097 | if (!t || |
89f3bbdd | 1098 | ref_transaction_update(t, refname, new_oid, old_oid, |
74ec19d4 DT |
1099 | flags, msg, &err) || |
1100 | ref_transaction_commit(t, &err)) { | |
1101 | ret = 1; | |
1102 | ref_transaction_free(t); | |
1103 | } | |
1104 | } | |
1105 | if (ret) { | |
b4d75ac1 RS |
1106 | const char *str = "update_ref failed for ref '%s': %s"; |
1107 | ||
b4d75ac1 RS |
1108 | switch (onerr) { |
1109 | case UPDATE_REFS_MSG_ON_ERR: | |
1110 | error(str, refname, err.buf); | |
1111 | break; | |
1112 | case UPDATE_REFS_DIE_ON_ERR: | |
1113 | die(str, refname, err.buf); | |
1114 | break; | |
1115 | case UPDATE_REFS_QUIET_ON_ERR: | |
1116 | break; | |
1117 | } | |
1118 | strbuf_release(&err); | |
4738a333 | 1119 | return 1; |
b4d75ac1 RS |
1120 | } |
1121 | strbuf_release(&err); | |
74ec19d4 DT |
1122 | if (t) |
1123 | ref_transaction_free(t); | |
b4d75ac1 | 1124 | return 0; |
4738a333 BK |
1125 | } |
1126 | ||
c0fe4e8b | 1127 | int update_ref(const char *msg, const char *refname, |
ae077771 | 1128 | const struct object_id *new_oid, |
1129 | const struct object_id *old_oid, | |
c0fe4e8b NTND |
1130 | unsigned int flags, enum action_on_err onerr) |
1131 | { | |
23a3f0cb | 1132 | return refs_update_ref(get_main_ref_store(the_repository), msg, refname, new_oid, |
ae077771 | 1133 | old_oid, flags, onerr); |
c0fe4e8b NTND |
1134 | } |
1135 | ||
dfefa935 | 1136 | char *shorten_unambiguous_ref(const char *refname, int strict) |
7c2b3029 JK |
1137 | { |
1138 | int i; | |
1139 | static char **scanf_fmts; | |
1140 | static int nr_rules; | |
1141 | char *short_name; | |
6cd4a898 | 1142 | struct strbuf resolved_buf = STRBUF_INIT; |
7c2b3029 | 1143 | |
7c2b3029 | 1144 | if (!nr_rules) { |
4346663a MH |
1145 | /* |
1146 | * Pre-generate scanf formats from ref_rev_parse_rules[]. | |
1147 | * Generate a format suitable for scanf from a | |
1148 | * ref_rev_parse_rules rule by interpolating "%s" at the | |
1149 | * location of the "%.*s". | |
1150 | */ | |
7c2b3029 | 1151 | size_t total_len = 0; |
84d5633f | 1152 | size_t offset = 0; |
7c2b3029 JK |
1153 | |
1154 | /* the rule list is NULL terminated, count them first */ | |
a4165851 | 1155 | for (nr_rules = 0; ref_rev_parse_rules[nr_rules]; nr_rules++) |
7902fe03 MH |
1156 | /* -2 for strlen("%.*s") - strlen("%s"); +1 for NUL */ |
1157 | total_len += strlen(ref_rev_parse_rules[nr_rules]) - 2 + 1; | |
7c2b3029 | 1158 | |
50492f7b | 1159 | scanf_fmts = xmalloc(st_add(st_mult(sizeof(char *), nr_rules), total_len)); |
7c2b3029 | 1160 | |
84d5633f | 1161 | offset = 0; |
7c2b3029 | 1162 | for (i = 0; i < nr_rules; i++) { |
4346663a | 1163 | assert(offset < total_len); |
84d5633f | 1164 | scanf_fmts[i] = (char *)&scanf_fmts[nr_rules] + offset; |
bf4baf1f JK |
1165 | offset += xsnprintf(scanf_fmts[i], total_len - offset, |
1166 | ref_rev_parse_rules[i], 2, "%s") + 1; | |
7c2b3029 JK |
1167 | } |
1168 | } | |
1169 | ||
1170 | /* bail out if there are no rules */ | |
1171 | if (!nr_rules) | |
dfefa935 | 1172 | return xstrdup(refname); |
7c2b3029 | 1173 | |
dfefa935 MH |
1174 | /* buffer for scanf result, at most refname must fit */ |
1175 | short_name = xstrdup(refname); | |
7c2b3029 JK |
1176 | |
1177 | /* skip first rule, it will always match */ | |
1178 | for (i = nr_rules - 1; i > 0 ; --i) { | |
1179 | int j; | |
6e7b3309 | 1180 | int rules_to_fail = i; |
7c2b3029 JK |
1181 | int short_name_len; |
1182 | ||
dfefa935 | 1183 | if (1 != sscanf(refname, scanf_fmts[i], short_name)) |
7c2b3029 JK |
1184 | continue; |
1185 | ||
1186 | short_name_len = strlen(short_name); | |
1187 | ||
6e7b3309 BW |
1188 | /* |
1189 | * in strict mode, all (except the matched one) rules | |
1190 | * must fail to resolve to a valid non-ambiguous ref | |
1191 | */ | |
1192 | if (strict) | |
1193 | rules_to_fail = nr_rules; | |
1194 | ||
7c2b3029 JK |
1195 | /* |
1196 | * check if the short name resolves to a valid ref, | |
1197 | * but use only rules prior to the matched one | |
1198 | */ | |
6e7b3309 | 1199 | for (j = 0; j < rules_to_fail; j++) { |
7c2b3029 | 1200 | const char *rule = ref_rev_parse_rules[j]; |
7c2b3029 | 1201 | |
6e7b3309 BW |
1202 | /* skip matched rule */ |
1203 | if (i == j) | |
1204 | continue; | |
1205 | ||
7c2b3029 JK |
1206 | /* |
1207 | * the short name is ambiguous, if it resolves | |
1208 | * (with this previous rule) to a valid ref | |
1209 | * read_ref() returns 0 on success | |
1210 | */ | |
6cd4a898 JK |
1211 | strbuf_reset(&resolved_buf); |
1212 | strbuf_addf(&resolved_buf, rule, | |
1213 | short_name_len, short_name); | |
1214 | if (ref_exists(resolved_buf.buf)) | |
7c2b3029 JK |
1215 | break; |
1216 | } | |
1217 | ||
1218 | /* | |
1219 | * short name is non-ambiguous if all previous rules | |
1220 | * haven't resolved to a valid ref | |
1221 | */ | |
6cd4a898 JK |
1222 | if (j == rules_to_fail) { |
1223 | strbuf_release(&resolved_buf); | |
7c2b3029 | 1224 | return short_name; |
6cd4a898 | 1225 | } |
7c2b3029 JK |
1226 | } |
1227 | ||
6cd4a898 | 1228 | strbuf_release(&resolved_buf); |
7c2b3029 | 1229 | free(short_name); |
dfefa935 | 1230 | return xstrdup(refname); |
7c2b3029 | 1231 | } |
daebaa78 JH |
1232 | |
1233 | static struct string_list *hide_refs; | |
1234 | ||
1235 | int parse_hide_refs_config(const char *var, const char *value, const char *section) | |
1236 | { | |
ad8c7cda | 1237 | const char *key; |
daebaa78 | 1238 | if (!strcmp("transfer.hiderefs", var) || |
ad8c7cda JK |
1239 | (!parse_config_key(var, section, NULL, NULL, &key) && |
1240 | !strcmp(key, "hiderefs"))) { | |
daebaa78 JH |
1241 | char *ref; |
1242 | int len; | |
1243 | ||
1244 | if (!value) | |
1245 | return config_error_nonbool(var); | |
1246 | ref = xstrdup(value); | |
1247 | len = strlen(ref); | |
1248 | while (len && ref[len - 1] == '/') | |
1249 | ref[--len] = '\0'; | |
1250 | if (!hide_refs) { | |
1251 | hide_refs = xcalloc(1, sizeof(*hide_refs)); | |
1252 | hide_refs->strdup_strings = 1; | |
1253 | } | |
1254 | string_list_append(hide_refs, ref); | |
1255 | } | |
1256 | return 0; | |
1257 | } | |
1258 | ||
78a766ab | 1259 | int ref_is_hidden(const char *refname, const char *refname_full) |
daebaa78 | 1260 | { |
2bc31d16 | 1261 | int i; |
daebaa78 JH |
1262 | |
1263 | if (!hide_refs) | |
1264 | return 0; | |
2bc31d16 JK |
1265 | for (i = hide_refs->nr - 1; i >= 0; i--) { |
1266 | const char *match = hide_refs->items[i].string; | |
78a766ab | 1267 | const char *subject; |
2bc31d16 | 1268 | int neg = 0; |
7a40a95e | 1269 | const char *p; |
2bc31d16 JK |
1270 | |
1271 | if (*match == '!') { | |
1272 | neg = 1; | |
1273 | match++; | |
1274 | } | |
1275 | ||
78a766ab LF |
1276 | if (*match == '^') { |
1277 | subject = refname_full; | |
1278 | match++; | |
1279 | } else { | |
1280 | subject = refname; | |
1281 | } | |
1282 | ||
1283 | /* refname can be NULL when namespaces are used. */ | |
7a40a95e CC |
1284 | if (subject && |
1285 | skip_prefix(subject, match, &p) && | |
1286 | (!*p || *p == '/')) | |
2bc31d16 | 1287 | return !neg; |
daebaa78 JH |
1288 | } |
1289 | return 0; | |
1290 | } | |
fa5b1830 | 1291 | |
0845122c DT |
1292 | const char *find_descendant_ref(const char *dirname, |
1293 | const struct string_list *extras, | |
1294 | const struct string_list *skip) | |
fa5b1830 | 1295 | { |
0845122c | 1296 | int pos; |
fa5b1830 | 1297 | |
0845122c DT |
1298 | if (!extras) |
1299 | return NULL; | |
fa5b1830 MH |
1300 | |
1301 | /* | |
0845122c DT |
1302 | * Look at the place where dirname would be inserted into |
1303 | * extras. If there is an entry at that position that starts | |
1304 | * with dirname (remember, dirname includes the trailing | |
1305 | * slash) and is not in skip, then we have a conflict. | |
fa5b1830 | 1306 | */ |
0845122c DT |
1307 | for (pos = string_list_find_insert_index(extras, dirname, 0); |
1308 | pos < extras->nr; pos++) { | |
1309 | const char *extra_refname = extras->items[pos].string; | |
fa5b1830 | 1310 | |
0845122c DT |
1311 | if (!starts_with(extra_refname, dirname)) |
1312 | break; | |
1313 | ||
1314 | if (!skip || !string_list_has_string(skip, extra_refname)) | |
1315 | return extra_refname; | |
fa5b1830 | 1316 | } |
0845122c DT |
1317 | return NULL; |
1318 | } | |
fa5b1830 | 1319 | |
7d2df051 NTND |
1320 | int refs_rename_ref_available(struct ref_store *refs, |
1321 | const char *old_refname, | |
1322 | const char *new_refname) | |
0845122c DT |
1323 | { |
1324 | struct string_list skip = STRING_LIST_INIT_NODUP; | |
1325 | struct strbuf err = STRBUF_INIT; | |
ff3a299c | 1326 | int ok; |
fa5b1830 | 1327 | |
ff3a299c | 1328 | string_list_insert(&skip, old_refname); |
7d2df051 NTND |
1329 | ok = !refs_verify_refname_available(refs, new_refname, |
1330 | NULL, &skip, &err); | |
ff3a299c | 1331 | if (!ok) |
0845122c DT |
1332 | error("%s", err.buf); |
1333 | ||
1334 | string_list_clear(&skip, 0); | |
1335 | strbuf_release(&err); | |
ff3a299c | 1336 | return ok; |
fa5b1830 | 1337 | } |
2bf68ed5 | 1338 | |
62f0b399 | 1339 | int refs_head_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
2bf68ed5 DT |
1340 | { |
1341 | struct object_id oid; | |
1342 | int flag; | |
1343 | ||
62f0b399 | 1344 | if (!refs_read_ref_full(refs, "HEAD", RESOLVE_REF_READING, |
34c290a6 | 1345 | &oid, &flag)) |
2bf68ed5 DT |
1346 | return fn("HEAD", &oid, flag, cb_data); |
1347 | ||
1348 | return 0; | |
1349 | } | |
1350 | ||
1351 | int head_ref(each_ref_fn fn, void *cb_data) | |
1352 | { | |
23a3f0cb | 1353 | return refs_head_ref(get_main_ref_store(the_repository), fn, cb_data); |
2bf68ed5 | 1354 | } |
93770590 | 1355 | |
e121b9cb MH |
1356 | struct ref_iterator *refs_ref_iterator_begin( |
1357 | struct ref_store *refs, | |
1358 | const char *prefix, int trim, int flags) | |
1359 | { | |
1360 | struct ref_iterator *iter; | |
1361 | ||
0a0865b8 MH |
1362 | if (ref_paranoia < 0) |
1363 | ref_paranoia = git_env_bool("GIT_REF_PARANOIA", 0); | |
1364 | if (ref_paranoia) | |
1365 | flags |= DO_FOR_EACH_INCLUDE_BROKEN; | |
1366 | ||
e121b9cb | 1367 | iter = refs->be->iterator_begin(refs, prefix, flags); |
c7599718 MH |
1368 | |
1369 | /* | |
1370 | * `iterator_begin()` already takes care of prefix, but we | |
1371 | * might need to do some trimming: | |
1372 | */ | |
1373 | if (trim) | |
1374 | iter = prefix_ref_iterator_begin(iter, "", trim); | |
e121b9cb | 1375 | |
8738a8a4 MH |
1376 | /* Sanity check for subclasses: */ |
1377 | if (!iter->ordered) | |
1378 | BUG("reference iterator is not ordered"); | |
1379 | ||
e121b9cb MH |
1380 | return iter; |
1381 | } | |
1382 | ||
4c4de895 MH |
1383 | /* |
1384 | * Call fn for each reference in the specified submodule for which the | |
1385 | * refname begins with prefix. If trim is non-zero, then trim that | |
1386 | * many characters off the beginning of each refname before passing | |
1387 | * the refname to fn. flags can be DO_FOR_EACH_INCLUDE_BROKEN to | |
1388 | * include broken references in the iteration. If fn ever returns a | |
1389 | * non-zero value, stop the iteration and return that value; | |
1390 | * otherwise, return 0. | |
1391 | */ | |
7d2df051 | 1392 | static int do_for_each_ref(struct ref_store *refs, const char *prefix, |
4c4de895 MH |
1393 | each_ref_fn fn, int trim, int flags, void *cb_data) |
1394 | { | |
1395 | struct ref_iterator *iter; | |
1396 | ||
00eebe35 MH |
1397 | if (!refs) |
1398 | return 0; | |
1399 | ||
e121b9cb | 1400 | iter = refs_ref_iterator_begin(refs, prefix, trim, flags); |
4c4de895 MH |
1401 | |
1402 | return do_for_each_ref_iterator(iter, fn, cb_data); | |
1403 | } | |
1404 | ||
7d2df051 NTND |
1405 | int refs_for_each_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
1406 | { | |
1407 | return do_for_each_ref(refs, "", fn, 0, 0, cb_data); | |
1408 | } | |
1409 | ||
93770590 DT |
1410 | int for_each_ref(each_ref_fn fn, void *cb_data) |
1411 | { | |
23a3f0cb | 1412 | return refs_for_each_ref(get_main_ref_store(the_repository), fn, cb_data); |
93770590 DT |
1413 | } |
1414 | ||
7d2df051 NTND |
1415 | int refs_for_each_ref_in(struct ref_store *refs, const char *prefix, |
1416 | each_ref_fn fn, void *cb_data) | |
1417 | { | |
1418 | return do_for_each_ref(refs, prefix, fn, strlen(prefix), 0, cb_data); | |
93770590 DT |
1419 | } |
1420 | ||
1421 | int for_each_ref_in(const char *prefix, each_ref_fn fn, void *cb_data) | |
1422 | { | |
23a3f0cb | 1423 | return refs_for_each_ref_in(get_main_ref_store(the_repository), prefix, fn, cb_data); |
93770590 DT |
1424 | } |
1425 | ||
1426 | int for_each_fullref_in(const char *prefix, each_ref_fn fn, void *cb_data, unsigned int broken) | |
1427 | { | |
1428 | unsigned int flag = 0; | |
1429 | ||
1430 | if (broken) | |
1431 | flag = DO_FOR_EACH_INCLUDE_BROKEN; | |
23a3f0cb | 1432 | return do_for_each_ref(get_main_ref_store(the_repository), |
7d2df051 | 1433 | prefix, fn, 0, flag, cb_data); |
93770590 DT |
1434 | } |
1435 | ||
073cf63c NTND |
1436 | int refs_for_each_fullref_in(struct ref_store *refs, const char *prefix, |
1437 | each_ref_fn fn, void *cb_data, | |
1438 | unsigned int broken) | |
03df567f MH |
1439 | { |
1440 | unsigned int flag = 0; | |
1441 | ||
1442 | if (broken) | |
1443 | flag = DO_FOR_EACH_INCLUDE_BROKEN; | |
073cf63c | 1444 | return do_for_each_ref(refs, prefix, fn, 0, flag, cb_data); |
03df567f MH |
1445 | } |
1446 | ||
0d296c57 | 1447 | int for_each_replace_ref(struct repository *r, each_ref_fn fn, void *cb_data) |
93770590 | 1448 | { |
0d296c57 | 1449 | return do_for_each_ref(get_main_ref_store(r), |
7d2df051 NTND |
1450 | git_replace_ref_base, fn, |
1451 | strlen(git_replace_ref_base), | |
006f3f28 | 1452 | DO_FOR_EACH_INCLUDE_BROKEN, cb_data); |
93770590 DT |
1453 | } |
1454 | ||
1455 | int for_each_namespaced_ref(each_ref_fn fn, void *cb_data) | |
1456 | { | |
1457 | struct strbuf buf = STRBUF_INIT; | |
1458 | int ret; | |
1459 | strbuf_addf(&buf, "%srefs/", get_git_namespace()); | |
23a3f0cb | 1460 | ret = do_for_each_ref(get_main_ref_store(the_repository), |
7d2df051 | 1461 | buf.buf, fn, 0, 0, cb_data); |
93770590 DT |
1462 | strbuf_release(&buf); |
1463 | return ret; | |
1464 | } | |
1465 | ||
7d2df051 | 1466 | int refs_for_each_rawref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
93770590 | 1467 | { |
7d2df051 | 1468 | return do_for_each_ref(refs, "", fn, 0, |
93770590 DT |
1469 | DO_FOR_EACH_INCLUDE_BROKEN, cb_data); |
1470 | } | |
2d0663b2 | 1471 | |
7d2df051 NTND |
1472 | int for_each_rawref(each_ref_fn fn, void *cb_data) |
1473 | { | |
23a3f0cb | 1474 | return refs_for_each_rawref(get_main_ref_store(the_repository), fn, cb_data); |
7d2df051 NTND |
1475 | } |
1476 | ||
470be518 | 1477 | int refs_read_raw_ref(struct ref_store *ref_store, |
99afe91a | 1478 | const char *refname, struct object_id *oid, |
470be518 MH |
1479 | struct strbuf *referent, unsigned int *type) |
1480 | { | |
99afe91a | 1481 | return ref_store->be->read_raw_ref(ref_store, refname, oid, referent, type); |
470be518 MH |
1482 | } |
1483 | ||
2d0663b2 | 1484 | /* This function needs to return a meaningful errno on failure */ |
7d2df051 | 1485 | const char *refs_resolve_ref_unsafe(struct ref_store *refs, |
3c0cb0cb MH |
1486 | const char *refname, |
1487 | int resolve_flags, | |
49e61479 | 1488 | struct object_id *oid, int *flags) |
2d0663b2 DT |
1489 | { |
1490 | static struct strbuf sb_refname = STRBUF_INIT; | |
54fad661 | 1491 | struct object_id unused_oid; |
2d0663b2 DT |
1492 | int unused_flags; |
1493 | int symref_count; | |
1494 | ||
49e61479 | 1495 | if (!oid) |
1496 | oid = &unused_oid; | |
2d0663b2 DT |
1497 | if (!flags) |
1498 | flags = &unused_flags; | |
1499 | ||
1500 | *flags = 0; | |
1501 | ||
1502 | if (check_refname_format(refname, REFNAME_ALLOW_ONELEVEL)) { | |
1503 | if (!(resolve_flags & RESOLVE_REF_ALLOW_BAD_NAME) || | |
1504 | !refname_is_safe(refname)) { | |
1505 | errno = EINVAL; | |
1506 | return NULL; | |
1507 | } | |
1508 | ||
1509 | /* | |
1510 | * dwim_ref() uses REF_ISBROKEN to distinguish between | |
1511 | * missing refs and refs that were present but invalid, | |
1512 | * to complain about the latter to stderr. | |
1513 | * | |
1514 | * We don't know whether the ref exists, so don't set | |
1515 | * REF_ISBROKEN yet. | |
1516 | */ | |
1517 | *flags |= REF_BAD_NAME; | |
1518 | } | |
1519 | ||
1520 | for (symref_count = 0; symref_count < SYMREF_MAXDEPTH; symref_count++) { | |
1521 | unsigned int read_flags = 0; | |
1522 | ||
470be518 | 1523 | if (refs_read_raw_ref(refs, refname, |
99afe91a | 1524 | oid, &sb_refname, &read_flags)) { |
2d0663b2 | 1525 | *flags |= read_flags; |
a1c1d817 JK |
1526 | |
1527 | /* In reading mode, refs must eventually resolve */ | |
1528 | if (resolve_flags & RESOLVE_REF_READING) | |
1529 | return NULL; | |
1530 | ||
1531 | /* | |
1532 | * Otherwise a missing ref is OK. But the files backend | |
1533 | * may show errors besides ENOENT if there are | |
1534 | * similarly-named refs. | |
1535 | */ | |
1536 | if (errno != ENOENT && | |
1537 | errno != EISDIR && | |
1538 | errno != ENOTDIR) | |
2d0663b2 | 1539 | return NULL; |
a1c1d817 | 1540 | |
49e61479 | 1541 | oidclr(oid); |
2d0663b2 DT |
1542 | if (*flags & REF_BAD_NAME) |
1543 | *flags |= REF_ISBROKEN; | |
1544 | return refname; | |
1545 | } | |
1546 | ||
1547 | *flags |= read_flags; | |
1548 | ||
1549 | if (!(read_flags & REF_ISSYMREF)) { | |
1550 | if (*flags & REF_BAD_NAME) { | |
49e61479 | 1551 | oidclr(oid); |
2d0663b2 DT |
1552 | *flags |= REF_ISBROKEN; |
1553 | } | |
1554 | return refname; | |
1555 | } | |
1556 | ||
1557 | refname = sb_refname.buf; | |
1558 | if (resolve_flags & RESOLVE_REF_NO_RECURSE) { | |
49e61479 | 1559 | oidclr(oid); |
2d0663b2 DT |
1560 | return refname; |
1561 | } | |
1562 | if (check_refname_format(refname, REFNAME_ALLOW_ONELEVEL)) { | |
1563 | if (!(resolve_flags & RESOLVE_REF_ALLOW_BAD_NAME) || | |
1564 | !refname_is_safe(refname)) { | |
1565 | errno = EINVAL; | |
1566 | return NULL; | |
1567 | } | |
1568 | ||
1569 | *flags |= REF_ISBROKEN | REF_BAD_NAME; | |
1570 | } | |
1571 | } | |
1572 | ||
1573 | errno = ELOOP; | |
1574 | return NULL; | |
1575 | } | |
00eebe35 | 1576 | |
6fb5acfd DT |
1577 | /* backend functions */ |
1578 | int refs_init_db(struct strbuf *err) | |
1579 | { | |
23a3f0cb | 1580 | struct ref_store *refs = get_main_ref_store(the_repository); |
6fb5acfd DT |
1581 | |
1582 | return refs->be->init_db(refs, err); | |
1583 | } | |
1584 | ||
bd40dcda | 1585 | const char *resolve_ref_unsafe(const char *refname, int resolve_flags, |
49e61479 | 1586 | struct object_id *oid, int *flags) |
bd40dcda | 1587 | { |
23a3f0cb | 1588 | return refs_resolve_ref_unsafe(get_main_ref_store(the_repository), refname, |
49e61479 | 1589 | resolve_flags, oid, flags); |
bd40dcda MH |
1590 | } |
1591 | ||
a8355bb7 | 1592 | int resolve_gitlink_ref(const char *submodule, const char *refname, |
a98e6101 | 1593 | struct object_id *oid) |
424dcc76 | 1594 | { |
424dcc76 MH |
1595 | struct ref_store *refs; |
1596 | int flags; | |
1597 | ||
29babbee | 1598 | refs = get_submodule_ref_store(submodule); |
48a8475f | 1599 | |
424dcc76 MH |
1600 | if (!refs) |
1601 | return -1; | |
1602 | ||
49e61479 | 1603 | if (!refs_resolve_ref_unsafe(refs, refname, 0, oid, &flags) || |
a98e6101 | 1604 | is_null_oid(oid)) |
424dcc76 MH |
1605 | return -1; |
1606 | return 0; | |
1607 | } | |
1608 | ||
0c064d90 | 1609 | struct ref_store_hash_entry |
7d4558c4 MH |
1610 | { |
1611 | struct hashmap_entry ent; /* must be the first member! */ | |
1612 | ||
1613 | struct ref_store *refs; | |
1614 | ||
0c064d90 NTND |
1615 | /* NUL-terminated identifier of the ref store: */ |
1616 | char name[FLEX_ARRAY]; | |
7d4558c4 MH |
1617 | }; |
1618 | ||
7663cdc8 SB |
1619 | static int ref_store_hash_cmp(const void *unused_cmp_data, |
1620 | const void *entry, const void *entry_or_key, | |
7d4558c4 MH |
1621 | const void *keydata) |
1622 | { | |
0c064d90 NTND |
1623 | const struct ref_store_hash_entry *e1 = entry, *e2 = entry_or_key; |
1624 | const char *name = keydata ? keydata : e2->name; | |
7d4558c4 | 1625 | |
0c064d90 | 1626 | return strcmp(e1->name, name); |
7d4558c4 MH |
1627 | } |
1628 | ||
0c064d90 NTND |
1629 | static struct ref_store_hash_entry *alloc_ref_store_hash_entry( |
1630 | const char *name, struct ref_store *refs) | |
7d4558c4 | 1631 | { |
0c064d90 | 1632 | struct ref_store_hash_entry *entry; |
7d4558c4 | 1633 | |
0c064d90 NTND |
1634 | FLEX_ALLOC_STR(entry, name, name); |
1635 | hashmap_entry_init(entry, strhash(name)); | |
7d4558c4 MH |
1636 | entry->refs = refs; |
1637 | return entry; | |
1638 | } | |
1639 | ||
7d4558c4 MH |
1640 | /* A hashmap of ref_stores, stored by submodule name: */ |
1641 | static struct hashmap submodule_ref_stores; | |
00eebe35 | 1642 | |
17eff96b NTND |
1643 | /* A hashmap of ref_stores, stored by worktree id: */ |
1644 | static struct hashmap worktree_ref_stores; | |
1645 | ||
c468da4e | 1646 | /* |
0c064d90 NTND |
1647 | * Look up a ref store by name. If that ref_store hasn't been |
1648 | * registered yet, return NULL. | |
c468da4e | 1649 | */ |
0c064d90 NTND |
1650 | static struct ref_store *lookup_ref_store_map(struct hashmap *map, |
1651 | const char *name) | |
00eebe35 | 1652 | { |
0c064d90 | 1653 | struct ref_store_hash_entry *entry; |
00eebe35 | 1654 | |
0c064d90 | 1655 | if (!map->tablesize) |
7d4558c4 MH |
1656 | /* It's initialized on demand in register_ref_store(). */ |
1657 | return NULL; | |
620a66b9 | 1658 | |
0c064d90 | 1659 | entry = hashmap_get_from_hash(map, strhash(name), name); |
7d4558c4 | 1660 | return entry ? entry->refs : NULL; |
00eebe35 MH |
1661 | } |
1662 | ||
c468da4e MH |
1663 | /* |
1664 | * Create, record, and return a ref_store instance for the specified | |
5d0bc90e | 1665 | * gitdir. |
c468da4e | 1666 | */ |
9e7ec634 NTND |
1667 | static struct ref_store *ref_store_init(const char *gitdir, |
1668 | unsigned int flags) | |
00eebe35 MH |
1669 | { |
1670 | const char *be_name = "files"; | |
1671 | struct ref_storage_be *be = find_ref_storage_backend(be_name); | |
ba88add5 | 1672 | struct ref_store *refs; |
00eebe35 MH |
1673 | |
1674 | if (!be) | |
033abf97 | 1675 | BUG("reference backend %s is unknown", be_name); |
00eebe35 | 1676 | |
9e7ec634 | 1677 | refs = be->init(gitdir, flags); |
ba88add5 | 1678 | return refs; |
00eebe35 MH |
1679 | } |
1680 | ||
64a74161 | 1681 | struct ref_store *get_main_ref_store(struct repository *r) |
24c8407e | 1682 | { |
64a74161 SB |
1683 | if (r->refs) |
1684 | return r->refs; | |
24c8407e | 1685 | |
2dc417ab JK |
1686 | if (!r->gitdir) |
1687 | BUG("attempting to get main_ref_store outside of repository"); | |
1688 | ||
64a74161 SB |
1689 | r->refs = ref_store_init(r->gitdir, REF_STORE_ALL_CAPS); |
1690 | return r->refs; | |
378dc910 NTND |
1691 | } |
1692 | ||
1693 | /* | |
0c064d90 NTND |
1694 | * Associate a ref store with a name. It is a fatal error to call this |
1695 | * function twice for the same name. | |
378dc910 | 1696 | */ |
0c064d90 NTND |
1697 | static void register_ref_store_map(struct hashmap *map, |
1698 | const char *type, | |
1699 | struct ref_store *refs, | |
1700 | const char *name) | |
378dc910 | 1701 | { |
0c064d90 | 1702 | if (!map->tablesize) |
7663cdc8 | 1703 | hashmap_init(map, ref_store_hash_cmp, NULL, 0); |
378dc910 | 1704 | |
0c064d90 | 1705 | if (hashmap_put(map, alloc_ref_store_hash_entry(name, refs))) |
033abf97 | 1706 | BUG("%s ref_store '%s' initialized twice", type, name); |
24c8407e NTND |
1707 | } |
1708 | ||
18d0002d | 1709 | struct ref_store *get_submodule_ref_store(const char *submodule) |
00eebe35 | 1710 | { |
126c9e05 | 1711 | struct strbuf submodule_sb = STRBUF_INIT; |
00eebe35 | 1712 | struct ref_store *refs; |
29babbee NTND |
1713 | char *to_free = NULL; |
1714 | size_t len; | |
00eebe35 | 1715 | |
82a150f2 NTND |
1716 | if (!submodule) |
1717 | return NULL; | |
1718 | ||
873ea90d NTND |
1719 | len = strlen(submodule); |
1720 | while (len && is_dir_sep(submodule[len - 1])) | |
1721 | len--; | |
1722 | if (!len) | |
1723 | return NULL; | |
00eebe35 | 1724 | |
29babbee NTND |
1725 | if (submodule[len]) |
1726 | /* We need to strip off one or more trailing slashes */ | |
1727 | submodule = to_free = xmemdupz(submodule, len); | |
00eebe35 | 1728 | |
0c064d90 | 1729 | refs = lookup_ref_store_map(&submodule_ref_stores, submodule); |
126c9e05 | 1730 | if (refs) |
2c616c17 | 1731 | goto done; |
00eebe35 | 1732 | |
126c9e05 | 1733 | strbuf_addstr(&submodule_sb, submodule); |
2c616c17 NTND |
1734 | if (!is_nonbare_repository_dir(&submodule_sb)) |
1735 | goto done; | |
00eebe35 | 1736 | |
2c616c17 NTND |
1737 | if (submodule_to_gitdir(&submodule_sb, submodule)) |
1738 | goto done; | |
00eebe35 | 1739 | |
9e7ec634 NTND |
1740 | /* assume that add_submodule_odb() has been called */ |
1741 | refs = ref_store_init(submodule_sb.buf, | |
1742 | REF_STORE_READ | REF_STORE_ODB); | |
0c064d90 NTND |
1743 | register_ref_store_map(&submodule_ref_stores, "submodule", |
1744 | refs, submodule); | |
5d0bc90e | 1745 | |
2c616c17 | 1746 | done: |
5d0bc90e | 1747 | strbuf_release(&submodule_sb); |
29babbee NTND |
1748 | free(to_free); |
1749 | ||
00eebe35 MH |
1750 | return refs; |
1751 | } | |
1752 | ||
17eff96b NTND |
1753 | struct ref_store *get_worktree_ref_store(const struct worktree *wt) |
1754 | { | |
1755 | struct ref_store *refs; | |
1756 | const char *id; | |
1757 | ||
1758 | if (wt->is_current) | |
23a3f0cb | 1759 | return get_main_ref_store(the_repository); |
17eff96b NTND |
1760 | |
1761 | id = wt->id ? wt->id : "/"; | |
1762 | refs = lookup_ref_store_map(&worktree_ref_stores, id); | |
1763 | if (refs) | |
1764 | return refs; | |
1765 | ||
1766 | if (wt->id) | |
1767 | refs = ref_store_init(git_common_path("worktrees/%s", wt->id), | |
1768 | REF_STORE_ALL_CAPS); | |
1769 | else | |
1770 | refs = ref_store_init(get_git_common_dir(), | |
1771 | REF_STORE_ALL_CAPS); | |
1772 | ||
1773 | if (refs) | |
1774 | register_ref_store_map(&worktree_ref_stores, "worktree", | |
1775 | refs, id); | |
1776 | return refs; | |
1777 | } | |
1778 | ||
620a66b9 | 1779 | void base_ref_store_init(struct ref_store *refs, |
fbfd0a29 | 1780 | const struct ref_storage_be *be) |
00eebe35 | 1781 | { |
620a66b9 | 1782 | refs->be = be; |
00eebe35 | 1783 | } |
127b42a1 RS |
1784 | |
1785 | /* backend functions */ | |
7d2df051 | 1786 | int refs_pack_refs(struct ref_store *refs, unsigned int flags) |
8231527e | 1787 | { |
8231527e MH |
1788 | return refs->be->pack_refs(refs, flags); |
1789 | } | |
1790 | ||
7d2df051 | 1791 | int refs_peel_ref(struct ref_store *refs, const char *refname, |
b420d909 | 1792 | struct object_id *oid) |
7d2df051 | 1793 | { |
ba1c052f | 1794 | int flag; |
34c290a6 | 1795 | struct object_id base; |
ba1c052f MH |
1796 | |
1797 | if (current_ref_iter && current_ref_iter->refname == refname) { | |
1798 | struct object_id peeled; | |
1799 | ||
1800 | if (ref_iterator_peel(current_ref_iter, &peeled)) | |
1801 | return -1; | |
b420d909 | 1802 | oidcpy(oid, &peeled); |
ba1c052f MH |
1803 | return 0; |
1804 | } | |
1805 | ||
1806 | if (refs_read_ref_full(refs, refname, | |
34c290a6 | 1807 | RESOLVE_REF_READING, &base, &flag)) |
ba1c052f MH |
1808 | return -1; |
1809 | ||
ac2ed0d7 | 1810 | return peel_object(&base, oid); |
8231527e MH |
1811 | } |
1812 | ||
b420d909 | 1813 | int peel_ref(const char *refname, struct object_id *oid) |
bd427cf2 | 1814 | { |
23a3f0cb | 1815 | return refs_peel_ref(get_main_ref_store(the_repository), refname, oid); |
7d2df051 | 1816 | } |
bd427cf2 | 1817 | |
7d2df051 NTND |
1818 | int refs_create_symref(struct ref_store *refs, |
1819 | const char *ref_target, | |
1820 | const char *refs_heads_master, | |
1821 | const char *logmsg) | |
1822 | { | |
1823 | return refs->be->create_symref(refs, ref_target, | |
1824 | refs_heads_master, | |
1825 | logmsg); | |
bd427cf2 MH |
1826 | } |
1827 | ||
284689ba MH |
1828 | int create_symref(const char *ref_target, const char *refs_heads_master, |
1829 | const char *logmsg) | |
1830 | { | |
23a3f0cb | 1831 | return refs_create_symref(get_main_ref_store(the_repository), ref_target, |
7d2df051 | 1832 | refs_heads_master, logmsg); |
284689ba MH |
1833 | } |
1834 | ||
2ced105c MH |
1835 | int ref_update_reject_duplicates(struct string_list *refnames, |
1836 | struct strbuf *err) | |
1837 | { | |
a552e50e | 1838 | size_t i, n = refnames->nr; |
2ced105c MH |
1839 | |
1840 | assert(err); | |
1841 | ||
8556f8d6 MH |
1842 | for (i = 1; i < n; i++) { |
1843 | int cmp = strcmp(refnames->items[i - 1].string, | |
1844 | refnames->items[i].string); | |
1845 | ||
1846 | if (!cmp) { | |
2ced105c MH |
1847 | strbuf_addf(err, |
1848 | "multiple updates for ref '%s' not allowed.", | |
1849 | refnames->items[i].string); | |
1850 | return 1; | |
8556f8d6 | 1851 | } else if (cmp > 0) { |
033abf97 | 1852 | BUG("ref_update_reject_duplicates() received unsorted list"); |
2ced105c | 1853 | } |
8556f8d6 | 1854 | } |
2ced105c MH |
1855 | return 0; |
1856 | } | |
1857 | ||
30173b88 MH |
1858 | int ref_transaction_prepare(struct ref_transaction *transaction, |
1859 | struct strbuf *err) | |
127b42a1 | 1860 | { |
c0fe4e8b | 1861 | struct ref_store *refs = transaction->ref_store; |
127b42a1 | 1862 | |
8d4240d3 MH |
1863 | switch (transaction->state) { |
1864 | case REF_TRANSACTION_OPEN: | |
1865 | /* Good. */ | |
1866 | break; | |
30173b88 | 1867 | case REF_TRANSACTION_PREPARED: |
033abf97 | 1868 | BUG("prepare called twice on reference transaction"); |
30173b88 | 1869 | break; |
8d4240d3 | 1870 | case REF_TRANSACTION_CLOSED: |
033abf97 | 1871 | BUG("prepare called on a closed reference transaction"); |
8d4240d3 MH |
1872 | break; |
1873 | default: | |
033abf97 | 1874 | BUG("unexpected reference transaction state"); |
8d4240d3 MH |
1875 | break; |
1876 | } | |
1877 | ||
d8f4481c JK |
1878 | if (getenv(GIT_QUARANTINE_ENVIRONMENT)) { |
1879 | strbuf_addstr(err, | |
1880 | _("ref updates forbidden inside quarantine environment")); | |
1881 | return -1; | |
1882 | } | |
1883 | ||
30173b88 MH |
1884 | return refs->be->transaction_prepare(refs, transaction, err); |
1885 | } | |
1886 | ||
1887 | int ref_transaction_abort(struct ref_transaction *transaction, | |
1888 | struct strbuf *err) | |
1889 | { | |
1890 | struct ref_store *refs = transaction->ref_store; | |
1891 | int ret = 0; | |
1892 | ||
1893 | switch (transaction->state) { | |
1894 | case REF_TRANSACTION_OPEN: | |
1895 | /* No need to abort explicitly. */ | |
1896 | break; | |
1897 | case REF_TRANSACTION_PREPARED: | |
1898 | ret = refs->be->transaction_abort(refs, transaction, err); | |
1899 | break; | |
1900 | case REF_TRANSACTION_CLOSED: | |
033abf97 | 1901 | BUG("abort called on a closed reference transaction"); |
30173b88 MH |
1902 | break; |
1903 | default: | |
033abf97 | 1904 | BUG("unexpected reference transaction state"); |
30173b88 MH |
1905 | break; |
1906 | } | |
1907 | ||
1908 | ref_transaction_free(transaction); | |
1909 | return ret; | |
1910 | } | |
1911 | ||
1912 | int ref_transaction_commit(struct ref_transaction *transaction, | |
1913 | struct strbuf *err) | |
1914 | { | |
1915 | struct ref_store *refs = transaction->ref_store; | |
1916 | int ret; | |
1917 | ||
1918 | switch (transaction->state) { | |
1919 | case REF_TRANSACTION_OPEN: | |
1920 | /* Need to prepare first. */ | |
1921 | ret = ref_transaction_prepare(transaction, err); | |
1922 | if (ret) | |
1923 | return ret; | |
1924 | break; | |
1925 | case REF_TRANSACTION_PREPARED: | |
1926 | /* Fall through to finish. */ | |
1927 | break; | |
1928 | case REF_TRANSACTION_CLOSED: | |
033abf97 | 1929 | BUG("commit called on a closed reference transaction"); |
30173b88 MH |
1930 | break; |
1931 | default: | |
033abf97 | 1932 | BUG("unexpected reference transaction state"); |
30173b88 MH |
1933 | break; |
1934 | } | |
1935 | ||
1936 | return refs->be->transaction_finish(refs, transaction, err); | |
127b42a1 | 1937 | } |
62665823 | 1938 | |
7d2df051 NTND |
1939 | int refs_verify_refname_available(struct ref_store *refs, |
1940 | const char *refname, | |
b05855b5 | 1941 | const struct string_list *extras, |
7d2df051 NTND |
1942 | const struct string_list *skip, |
1943 | struct strbuf *err) | |
62665823 | 1944 | { |
b05855b5 MH |
1945 | const char *slash; |
1946 | const char *extra_refname; | |
1947 | struct strbuf dirname = STRBUF_INIT; | |
1948 | struct strbuf referent = STRBUF_INIT; | |
1949 | struct object_id oid; | |
1950 | unsigned int type; | |
1951 | struct ref_iterator *iter; | |
1952 | int ok; | |
1953 | int ret = -1; | |
1954 | ||
1955 | /* | |
1956 | * For the sake of comments in this function, suppose that | |
1957 | * refname is "refs/foo/bar". | |
1958 | */ | |
1959 | ||
1960 | assert(err); | |
1961 | ||
1962 | strbuf_grow(&dirname, strlen(refname) + 1); | |
1963 | for (slash = strchr(refname, '/'); slash; slash = strchr(slash + 1, '/')) { | |
1964 | /* Expand dirname to the new prefix, not including the trailing slash: */ | |
1965 | strbuf_add(&dirname, refname + dirname.len, slash - refname - dirname.len); | |
1966 | ||
1967 | /* | |
1968 | * We are still at a leading dir of the refname (e.g., | |
1969 | * "refs/foo"; if there is a reference with that name, | |
1970 | * it is a conflict, *unless* it is in skip. | |
1971 | */ | |
1972 | if (skip && string_list_has_string(skip, dirname.buf)) | |
1973 | continue; | |
1974 | ||
99afe91a | 1975 | if (!refs_read_raw_ref(refs, dirname.buf, &oid, &referent, &type)) { |
b05855b5 MH |
1976 | strbuf_addf(err, "'%s' exists; cannot create '%s'", |
1977 | dirname.buf, refname); | |
1978 | goto cleanup; | |
1979 | } | |
1980 | ||
1981 | if (extras && string_list_has_string(extras, dirname.buf)) { | |
1982 | strbuf_addf(err, "cannot process '%s' and '%s' at the same time", | |
1983 | refname, dirname.buf); | |
1984 | goto cleanup; | |
1985 | } | |
1986 | } | |
1987 | ||
1988 | /* | |
1989 | * We are at the leaf of our refname (e.g., "refs/foo/bar"). | |
1990 | * There is no point in searching for a reference with that | |
1991 | * name, because a refname isn't considered to conflict with | |
1992 | * itself. But we still need to check for references whose | |
1993 | * names are in the "refs/foo/bar/" namespace, because they | |
1994 | * *do* conflict. | |
1995 | */ | |
1996 | strbuf_addstr(&dirname, refname + dirname.len); | |
1997 | strbuf_addch(&dirname, '/'); | |
1998 | ||
1999 | iter = refs_ref_iterator_begin(refs, dirname.buf, 0, | |
2000 | DO_FOR_EACH_INCLUDE_BROKEN); | |
2001 | while ((ok = ref_iterator_advance(iter)) == ITER_OK) { | |
2002 | if (skip && | |
2003 | string_list_has_string(skip, iter->refname)) | |
2004 | continue; | |
2005 | ||
2006 | strbuf_addf(err, "'%s' exists; cannot create '%s'", | |
2007 | iter->refname, refname); | |
2008 | ref_iterator_abort(iter); | |
2009 | goto cleanup; | |
2010 | } | |
2011 | ||
2012 | if (ok != ITER_DONE) | |
033abf97 | 2013 | BUG("error while iterating over references"); |
b05855b5 MH |
2014 | |
2015 | extra_refname = find_descendant_ref(dirname.buf, extras, skip); | |
2016 | if (extra_refname) | |
2017 | strbuf_addf(err, "cannot process '%s' and '%s' at the same time", | |
2018 | refname, extra_refname); | |
2019 | else | |
2020 | ret = 0; | |
2021 | ||
2022 | cleanup: | |
2023 | strbuf_release(&referent); | |
2024 | strbuf_release(&dirname); | |
2025 | return ret; | |
62665823 | 2026 | } |
e3688bd6 | 2027 | |
7d2df051 | 2028 | int refs_for_each_reflog(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
e3688bd6 | 2029 | { |
e3688bd6 DT |
2030 | struct ref_iterator *iter; |
2031 | ||
2032 | iter = refs->be->reflog_iterator_begin(refs); | |
2033 | ||
2034 | return do_for_each_ref_iterator(iter, fn, cb_data); | |
2035 | } | |
2036 | ||
7d2df051 | 2037 | int for_each_reflog(each_ref_fn fn, void *cb_data) |
e3688bd6 | 2038 | { |
23a3f0cb | 2039 | return refs_for_each_reflog(get_main_ref_store(the_repository), fn, cb_data); |
7d2df051 | 2040 | } |
e3688bd6 | 2041 | |
7d2df051 NTND |
2042 | int refs_for_each_reflog_ent_reverse(struct ref_store *refs, |
2043 | const char *refname, | |
2044 | each_reflog_ent_fn fn, | |
2045 | void *cb_data) | |
2046 | { | |
e3688bd6 DT |
2047 | return refs->be->for_each_reflog_ent_reverse(refs, refname, |
2048 | fn, cb_data); | |
2049 | } | |
2050 | ||
7d2df051 NTND |
2051 | int for_each_reflog_ent_reverse(const char *refname, each_reflog_ent_fn fn, |
2052 | void *cb_data) | |
2053 | { | |
23a3f0cb | 2054 | return refs_for_each_reflog_ent_reverse(get_main_ref_store(the_repository), |
7d2df051 NTND |
2055 | refname, fn, cb_data); |
2056 | } | |
2057 | ||
2058 | int refs_for_each_reflog_ent(struct ref_store *refs, const char *refname, | |
2059 | each_reflog_ent_fn fn, void *cb_data) | |
2060 | { | |
2061 | return refs->be->for_each_reflog_ent(refs, refname, fn, cb_data); | |
2062 | } | |
2063 | ||
e3688bd6 DT |
2064 | int for_each_reflog_ent(const char *refname, each_reflog_ent_fn fn, |
2065 | void *cb_data) | |
2066 | { | |
23a3f0cb | 2067 | return refs_for_each_reflog_ent(get_main_ref_store(the_repository), refname, |
7d2df051 NTND |
2068 | fn, cb_data); |
2069 | } | |
e3688bd6 | 2070 | |
7d2df051 NTND |
2071 | int refs_reflog_exists(struct ref_store *refs, const char *refname) |
2072 | { | |
2073 | return refs->be->reflog_exists(refs, refname); | |
e3688bd6 DT |
2074 | } |
2075 | ||
2076 | int reflog_exists(const char *refname) | |
2077 | { | |
23a3f0cb | 2078 | return refs_reflog_exists(get_main_ref_store(the_repository), refname); |
7d2df051 | 2079 | } |
e3688bd6 | 2080 | |
7d2df051 NTND |
2081 | int refs_create_reflog(struct ref_store *refs, const char *refname, |
2082 | int force_create, struct strbuf *err) | |
2083 | { | |
2084 | return refs->be->create_reflog(refs, refname, force_create, err); | |
e3688bd6 DT |
2085 | } |
2086 | ||
2087 | int safe_create_reflog(const char *refname, int force_create, | |
2088 | struct strbuf *err) | |
2089 | { | |
23a3f0cb | 2090 | return refs_create_reflog(get_main_ref_store(the_repository), refname, |
7d2df051 NTND |
2091 | force_create, err); |
2092 | } | |
e3688bd6 | 2093 | |
7d2df051 NTND |
2094 | int refs_delete_reflog(struct ref_store *refs, const char *refname) |
2095 | { | |
2096 | return refs->be->delete_reflog(refs, refname); | |
e3688bd6 DT |
2097 | } |
2098 | ||
2099 | int delete_reflog(const char *refname) | |
2100 | { | |
23a3f0cb | 2101 | return refs_delete_reflog(get_main_ref_store(the_repository), refname); |
7d2df051 | 2102 | } |
e3688bd6 | 2103 | |
7d2df051 | 2104 | int refs_reflog_expire(struct ref_store *refs, |
0155f710 | 2105 | const char *refname, const struct object_id *oid, |
7d2df051 NTND |
2106 | unsigned int flags, |
2107 | reflog_expiry_prepare_fn prepare_fn, | |
2108 | reflog_expiry_should_prune_fn should_prune_fn, | |
2109 | reflog_expiry_cleanup_fn cleanup_fn, | |
2110 | void *policy_cb_data) | |
2111 | { | |
0155f710 | 2112 | return refs->be->reflog_expire(refs, refname, oid, flags, |
7d2df051 NTND |
2113 | prepare_fn, should_prune_fn, |
2114 | cleanup_fn, policy_cb_data); | |
e3688bd6 DT |
2115 | } |
2116 | ||
0155f710 | 2117 | int reflog_expire(const char *refname, const struct object_id *oid, |
e3688bd6 DT |
2118 | unsigned int flags, |
2119 | reflog_expiry_prepare_fn prepare_fn, | |
2120 | reflog_expiry_should_prune_fn should_prune_fn, | |
2121 | reflog_expiry_cleanup_fn cleanup_fn, | |
2122 | void *policy_cb_data) | |
2123 | { | |
23a3f0cb | 2124 | return refs_reflog_expire(get_main_ref_store(the_repository), |
0155f710 | 2125 | refname, oid, flags, |
7d2df051 NTND |
2126 | prepare_fn, should_prune_fn, |
2127 | cleanup_fn, policy_cb_data); | |
e3688bd6 | 2128 | } |
fc681463 DT |
2129 | |
2130 | int initial_ref_transaction_commit(struct ref_transaction *transaction, | |
2131 | struct strbuf *err) | |
2132 | { | |
c0fe4e8b | 2133 | struct ref_store *refs = transaction->ref_store; |
fc681463 DT |
2134 | |
2135 | return refs->be->initial_transaction_commit(refs, transaction, err); | |
2136 | } | |
a27dcf89 | 2137 | |
64da4199 MH |
2138 | int refs_delete_refs(struct ref_store *refs, const char *msg, |
2139 | struct string_list *refnames, unsigned int flags) | |
a27dcf89 | 2140 | { |
64da4199 | 2141 | return refs->be->delete_refs(refs, msg, refnames, flags); |
a27dcf89 | 2142 | } |
9b6b40d9 | 2143 | |
64da4199 MH |
2144 | int delete_refs(const char *msg, struct string_list *refnames, |
2145 | unsigned int flags) | |
9b6b40d9 | 2146 | { |
23a3f0cb | 2147 | return refs_delete_refs(get_main_ref_store(the_repository), msg, refnames, flags); |
7d2df051 | 2148 | } |
9b6b40d9 | 2149 | |
7d2df051 NTND |
2150 | int refs_rename_ref(struct ref_store *refs, const char *oldref, |
2151 | const char *newref, const char *logmsg) | |
2152 | { | |
9b6b40d9 DT |
2153 | return refs->be->rename_ref(refs, oldref, newref, logmsg); |
2154 | } | |
7d2df051 NTND |
2155 | |
2156 | int rename_ref(const char *oldref, const char *newref, const char *logmsg) | |
2157 | { | |
23a3f0cb | 2158 | return refs_rename_ref(get_main_ref_store(the_repository), oldref, newref, logmsg); |
7d2df051 | 2159 | } |
52d59cc6 SD |
2160 | |
2161 | int refs_copy_existing_ref(struct ref_store *refs, const char *oldref, | |
2162 | const char *newref, const char *logmsg) | |
2163 | { | |
2164 | return refs->be->copy_ref(refs, oldref, newref, logmsg); | |
2165 | } | |
2166 | ||
2167 | int copy_existing_ref(const char *oldref, const char *newref, const char *logmsg) | |
2168 | { | |
23a3f0cb | 2169 | return refs_copy_existing_ref(get_main_ref_store(the_repository), oldref, newref, logmsg); |
52d59cc6 | 2170 | } |