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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" |
cbd53a21 | 12 | #include "object-store.h" |
cf0adba7 JH |
13 | #include "object.h" |
14 | #include "tag.h" | |
5d0bc90e | 15 | #include "submodule.h" |
17eff96b | 16 | #include "worktree.h" |
b4be7410 | 17 | #include "argv-array.h" |
23a3f0cb | 18 | #include "repository.h" |
3581d793 | 19 | |
3dce444f RS |
20 | /* |
21 | * List of all available backends | |
22 | */ | |
23 | static struct ref_storage_be *refs_backends = &refs_be_files; | |
24 | ||
25 | static struct ref_storage_be *find_ref_storage_backend(const char *name) | |
26 | { | |
27 | struct ref_storage_be *be; | |
28 | for (be = refs_backends; be; be = be->next) | |
29 | if (!strcmp(be->name, name)) | |
30 | return be; | |
31 | return NULL; | |
32 | } | |
33 | ||
34 | int ref_storage_backend_exists(const char *name) | |
35 | { | |
36 | return find_ref_storage_backend(name) != NULL; | |
37 | } | |
38 | ||
bc5fd6d3 | 39 | /* |
dde8a902 DT |
40 | * How to handle various characters in refnames: |
41 | * 0: An acceptable character for refs | |
5e650228 JH |
42 | * 1: End-of-component |
43 | * 2: ., look for a preceding . to reject .. in refs | |
44 | * 3: {, look for a preceding @ to reject @{ in refs | |
53a8555e | 45 | * 4: A bad character: ASCII control characters, and |
cd377f45 JK |
46 | * ":", "?", "[", "\", "^", "~", SP, or TAB |
47 | * 5: *, reject unless REFNAME_REFSPEC_PATTERN is set | |
dde8a902 DT |
48 | */ |
49 | static unsigned char refname_disposition[256] = { | |
5e650228 JH |
50 | 1, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, |
51 | 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, | |
cd377f45 | 52 | 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5, 0, 0, 0, 2, 1, |
5e650228 | 53 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0, 0, 0, 4, |
dde8a902 | 54 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
5e650228 JH |
55 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 4, 0, 4, 0, |
56 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
57 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 4, 4 | |
dde8a902 DT |
58 | }; |
59 | ||
60 | /* | |
61 | * Try to read one refname component from the front of refname. | |
62 | * Return the length of the component found, or -1 if the component is | |
63 | * not legal. It is legal if it is something reasonable to have under | |
64 | * ".git/refs/"; We do not like it if: | |
bc5fd6d3 MH |
65 | * |
66 | * - any path component of it begins with ".", or | |
67 | * - it has double dots "..", or | |
53a8555e | 68 | * - it has ASCII control characters, or |
cd377f45 JK |
69 | * - it has ":", "?", "[", "\", "^", "~", SP, or TAB anywhere, or |
70 | * - it has "*" anywhere unless REFNAME_REFSPEC_PATTERN is set, or | |
53a8555e JK |
71 | * - it ends with a "/", or |
72 | * - it ends with ".lock", or | |
73 | * - it contains a "@{" portion | |
bc5fd6d3 | 74 | */ |
cd377f45 | 75 | static int check_refname_component(const char *refname, int *flags) |
bc5fd6d3 MH |
76 | { |
77 | const char *cp; | |
78 | char last = '\0'; | |
79 | ||
80 | for (cp = refname; ; cp++) { | |
dde8a902 DT |
81 | int ch = *cp & 255; |
82 | unsigned char disp = refname_disposition[ch]; | |
83 | switch (disp) { | |
5e650228 | 84 | case 1: |
dde8a902 | 85 | goto out; |
5e650228 | 86 | case 2: |
dde8a902 DT |
87 | if (last == '.') |
88 | return -1; /* Refname contains "..". */ | |
89 | break; | |
5e650228 | 90 | case 3: |
dde8a902 DT |
91 | if (last == '@') |
92 | return -1; /* Refname contains "@{". */ | |
bc5fd6d3 | 93 | break; |
5e650228 | 94 | case 4: |
dde8a902 | 95 | return -1; |
cd377f45 JK |
96 | case 5: |
97 | if (!(*flags & REFNAME_REFSPEC_PATTERN)) | |
98 | return -1; /* refspec can't be a pattern */ | |
99 | ||
100 | /* | |
101 | * Unset the pattern flag so that we only accept | |
102 | * a single asterisk for one side of refspec. | |
103 | */ | |
104 | *flags &= ~ REFNAME_REFSPEC_PATTERN; | |
105 | break; | |
dde8a902 | 106 | } |
bc5fd6d3 MH |
107 | last = ch; |
108 | } | |
dde8a902 | 109 | out: |
bc5fd6d3 | 110 | if (cp == refname) |
dac529e4 | 111 | return 0; /* Component has zero length. */ |
f3cc52d8 JN |
112 | if (refname[0] == '.') |
113 | return -1; /* Component starts with '.'. */ | |
7108ad23 MH |
114 | if (cp - refname >= LOCK_SUFFIX_LEN && |
115 | !memcmp(cp - LOCK_SUFFIX_LEN, LOCK_SUFFIX, LOCK_SUFFIX_LEN)) | |
bc5fd6d3 MH |
116 | return -1; /* Refname ends with ".lock". */ |
117 | return cp - refname; | |
118 | } | |
119 | ||
5e650228 | 120 | int check_refname_format(const char *refname, int flags) |
bc5fd6d3 MH |
121 | { |
122 | int component_len, component_count = 0; | |
123 | ||
9ba89f48 FC |
124 | if (!strcmp(refname, "@")) |
125 | /* Refname is a single character '@'. */ | |
126 | return -1; | |
127 | ||
bc5fd6d3 MH |
128 | while (1) { |
129 | /* We are at the start of a path component. */ | |
cd377f45 JK |
130 | component_len = check_refname_component(refname, &flags); |
131 | if (component_len <= 0) | |
132 | return -1; | |
133 | ||
bc5fd6d3 MH |
134 | component_count++; |
135 | if (refname[component_len] == '\0') | |
136 | break; | |
137 | /* Skip to next component. */ | |
138 | refname += component_len + 1; | |
139 | } | |
140 | ||
141 | if (refname[component_len - 1] == '.') | |
142 | return -1; /* Refname ends with '.'. */ | |
143 | if (!(flags & REFNAME_ALLOW_ONELEVEL) && component_count < 2) | |
144 | return -1; /* Refname has only one component. */ | |
145 | return 0; | |
146 | } | |
147 | ||
4cb77009 | 148 | int refname_is_safe(const char *refname) |
d0f810f0 | 149 | { |
39950fef MH |
150 | const char *rest; |
151 | ||
152 | if (skip_prefix(refname, "refs/", &rest)) { | |
d0f810f0 RS |
153 | char *buf; |
154 | int result; | |
e40f3557 MH |
155 | size_t restlen = strlen(rest); |
156 | ||
157 | /* rest must not be empty, or start or end with "/" */ | |
158 | if (!restlen || *rest == '/' || rest[restlen - 1] == '/') | |
159 | return 0; | |
d0f810f0 | 160 | |
d0f810f0 RS |
161 | /* |
162 | * Does the refname try to escape refs/? | |
163 | * For example: refs/foo/../bar is safe but refs/foo/../../bar | |
164 | * is not. | |
165 | */ | |
e40f3557 MH |
166 | buf = xmallocz(restlen); |
167 | result = !normalize_path_copy(buf, rest) && !strcmp(buf, rest); | |
d0f810f0 RS |
168 | free(buf); |
169 | return result; | |
170 | } | |
35db25c6 MH |
171 | |
172 | do { | |
d0f810f0 RS |
173 | if (!isupper(*refname) && *refname != '_') |
174 | return 0; | |
175 | refname++; | |
35db25c6 | 176 | } while (*refname); |
d0f810f0 RS |
177 | return 1; |
178 | } | |
179 | ||
67be7c5a MH |
180 | /* |
181 | * Return true if refname, which has the specified oid and flags, can | |
182 | * be resolved to an object in the database. If the referred-to object | |
183 | * does not exist, emit a warning and return false. | |
184 | */ | |
185 | int ref_resolves_to_object(const char *refname, | |
186 | const struct object_id *oid, | |
187 | unsigned int flags) | |
188 | { | |
189 | if (flags & REF_ISBROKEN) | |
190 | return 0; | |
191 | if (!has_sha1_file(oid->hash)) { | |
661558f0 | 192 | error(_("%s does not point to a valid object!"), refname); |
67be7c5a MH |
193 | return 0; |
194 | } | |
195 | return 1; | |
196 | } | |
197 | ||
7d2df051 NTND |
198 | char *refs_resolve_refdup(struct ref_store *refs, |
199 | const char *refname, int resolve_flags, | |
0f2dc722 | 200 | struct object_id *oid, int *flags) |
7d2df051 NTND |
201 | { |
202 | const char *result; | |
203 | ||
204 | result = refs_resolve_ref_unsafe(refs, refname, resolve_flags, | |
49e61479 | 205 | oid, flags); |
7d2df051 NTND |
206 | return xstrdup_or_null(result); |
207 | } | |
208 | ||
7bd9bcf3 | 209 | char *resolve_refdup(const char *refname, int resolve_flags, |
0f2dc722 | 210 | struct object_id *oid, int *flags) |
e1e22e37 | 211 | { |
23a3f0cb | 212 | return refs_resolve_refdup(get_main_ref_store(the_repository), |
7d2df051 | 213 | refname, resolve_flags, |
0f2dc722 | 214 | oid, flags); |
cddc4258 MH |
215 | } |
216 | ||
7bd9bcf3 MH |
217 | /* The argument to filter_refs */ |
218 | struct ref_filter { | |
219 | const char *pattern; | |
220 | each_ref_fn *fn; | |
221 | void *cb_data; | |
222 | }; | |
432ad41e | 223 | |
7d2df051 | 224 | int refs_read_ref_full(struct ref_store *refs, const char *refname, |
34c290a6 | 225 | int resolve_flags, struct object_id *oid, int *flags) |
732134ed | 226 | { |
49e61479 | 227 | if (refs_resolve_ref_unsafe(refs, refname, resolve_flags, oid, flags)) |
7bd9bcf3 MH |
228 | return 0; |
229 | return -1; | |
732134ed MH |
230 | } |
231 | ||
34c290a6 | 232 | int read_ref_full(const char *refname, int resolve_flags, struct object_id *oid, int *flags) |
7d2df051 | 233 | { |
23a3f0cb | 234 | return refs_read_ref_full(get_main_ref_store(the_repository), refname, |
34c290a6 | 235 | resolve_flags, oid, flags); |
7d2df051 NTND |
236 | } |
237 | ||
34c290a6 | 238 | int read_ref(const char *refname, struct object_id *oid) |
cddc4258 | 239 | { |
34c290a6 | 240 | return read_ref_full(refname, RESOLVE_REF_READING, oid, NULL); |
c774aab9 JP |
241 | } |
242 | ||
7bd9bcf3 | 243 | int ref_exists(const char *refname) |
bc5fd6d3 | 244 | { |
744c040b | 245 | return !!resolve_ref_unsafe(refname, RESOLVE_REF_READING, NULL, NULL); |
bc5fd6d3 MH |
246 | } |
247 | ||
65516f58 RA |
248 | static int match_ref_pattern(const char *refname, |
249 | const struct string_list_item *item) | |
250 | { | |
251 | int matched = 0; | |
252 | if (item->util == NULL) { | |
253 | if (!wildmatch(item->string, refname, 0)) | |
254 | matched = 1; | |
255 | } else { | |
256 | const char *rest; | |
257 | if (skip_prefix(refname, item->string, &rest) && | |
258 | (!*rest || *rest == '/')) | |
259 | matched = 1; | |
260 | } | |
261 | return matched; | |
262 | } | |
263 | ||
264 | int ref_filter_match(const char *refname, | |
265 | const struct string_list *include_patterns, | |
266 | const struct string_list *exclude_patterns) | |
267 | { | |
268 | struct string_list_item *item; | |
269 | ||
270 | if (exclude_patterns && exclude_patterns->nr) { | |
271 | for_each_string_list_item(item, exclude_patterns) { | |
272 | if (match_ref_pattern(refname, item)) | |
273 | return 0; | |
274 | } | |
275 | } | |
276 | ||
277 | if (include_patterns && include_patterns->nr) { | |
278 | int found = 0; | |
279 | for_each_string_list_item(item, include_patterns) { | |
280 | if (match_ref_pattern(refname, item)) { | |
281 | found = 1; | |
282 | break; | |
283 | } | |
284 | } | |
285 | ||
286 | if (!found) | |
287 | return 0; | |
288 | } | |
289 | return 1; | |
290 | } | |
291 | ||
7bd9bcf3 MH |
292 | static int filter_refs(const char *refname, const struct object_id *oid, |
293 | int flags, void *data) | |
432ad41e | 294 | { |
7bd9bcf3 MH |
295 | struct ref_filter *filter = (struct ref_filter *)data; |
296 | ||
55d34269 | 297 | if (wildmatch(filter->pattern, refname, 0)) |
7bd9bcf3 MH |
298 | return 0; |
299 | return filter->fn(refname, oid, flags, filter->cb_data); | |
432ad41e MH |
300 | } |
301 | ||
ac2ed0d7 | 302 | enum peel_status peel_object(const struct object_id *name, struct object_id *oid) |
c774aab9 | 303 | { |
ac2ed0d7 | 304 | struct object *o = lookup_unknown_object(name->hash); |
c774aab9 | 305 | |
7bd9bcf3 | 306 | if (o->type == OBJ_NONE) { |
0df8e965 | 307 | int type = oid_object_info(the_repository, name, NULL); |
1268dfac | 308 | if (type < 0 || !object_as_type(the_repository, o, type, 0)) |
7bd9bcf3 MH |
309 | return PEEL_INVALID; |
310 | } | |
bc5fd6d3 | 311 | |
7bd9bcf3 MH |
312 | if (o->type != OBJ_TAG) |
313 | return PEEL_NON_TAG; | |
e1980c9d | 314 | |
7bd9bcf3 MH |
315 | o = deref_tag_noverify(o); |
316 | if (!o) | |
317 | return PEEL_INVALID; | |
318 | ||
ac2ed0d7 | 319 | oidcpy(oid, &o->oid); |
7bd9bcf3 | 320 | return PEEL_PEELED; |
e1980c9d JH |
321 | } |
322 | ||
7bd9bcf3 MH |
323 | struct warn_if_dangling_data { |
324 | FILE *fp; | |
325 | const char *refname; | |
326 | const struct string_list *refnames; | |
327 | const char *msg_fmt; | |
328 | }; | |
bc5fd6d3 | 329 | |
7bd9bcf3 MH |
330 | static int warn_if_dangling_symref(const char *refname, const struct object_id *oid, |
331 | int flags, void *cb_data) | |
332 | { | |
333 | struct warn_if_dangling_data *d = cb_data; | |
334 | const char *resolves_to; | |
bc5fd6d3 | 335 | |
7bd9bcf3 MH |
336 | if (!(flags & REF_ISSYMREF)) |
337 | return 0; | |
bc5fd6d3 | 338 | |
744c040b | 339 | resolves_to = resolve_ref_unsafe(refname, 0, NULL, NULL); |
7bd9bcf3 MH |
340 | if (!resolves_to |
341 | || (d->refname | |
342 | ? strcmp(resolves_to, d->refname) | |
343 | : !string_list_has_string(d->refnames, resolves_to))) { | |
344 | return 0; | |
345 | } | |
bc5fd6d3 | 346 | |
7bd9bcf3 MH |
347 | fprintf(d->fp, d->msg_fmt, refname); |
348 | fputc('\n', d->fp); | |
349 | return 0; | |
bc5fd6d3 MH |
350 | } |
351 | ||
7bd9bcf3 | 352 | void warn_dangling_symref(FILE *fp, const char *msg_fmt, const char *refname) |
f348ac92 | 353 | { |
7bd9bcf3 MH |
354 | struct warn_if_dangling_data data; |
355 | ||
356 | data.fp = fp; | |
357 | data.refname = refname; | |
358 | data.refnames = NULL; | |
359 | data.msg_fmt = msg_fmt; | |
360 | for_each_rawref(warn_if_dangling_symref, &data); | |
f348ac92 MH |
361 | } |
362 | ||
7bd9bcf3 | 363 | void warn_dangling_symrefs(FILE *fp, const char *msg_fmt, const struct string_list *refnames) |
432ad41e | 364 | { |
7bd9bcf3 | 365 | struct warn_if_dangling_data data; |
432ad41e | 366 | |
7bd9bcf3 MH |
367 | data.fp = fp; |
368 | data.refname = NULL; | |
369 | data.refnames = refnames; | |
370 | data.msg_fmt = msg_fmt; | |
371 | for_each_rawref(warn_if_dangling_symref, &data); | |
432ad41e MH |
372 | } |
373 | ||
7d2df051 NTND |
374 | int refs_for_each_tag_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
375 | { | |
376 | return refs_for_each_ref_in(refs, "refs/tags/", fn, cb_data); | |
377 | } | |
378 | ||
7bd9bcf3 | 379 | int for_each_tag_ref(each_ref_fn fn, void *cb_data) |
432ad41e | 380 | { |
23a3f0cb | 381 | return refs_for_each_tag_ref(get_main_ref_store(the_repository), fn, cb_data); |
432ad41e MH |
382 | } |
383 | ||
7d2df051 NTND |
384 | int refs_for_each_branch_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
385 | { | |
386 | return refs_for_each_ref_in(refs, "refs/heads/", fn, cb_data); | |
432ad41e MH |
387 | } |
388 | ||
7bd9bcf3 | 389 | int for_each_branch_ref(each_ref_fn fn, void *cb_data) |
432ad41e | 390 | { |
23a3f0cb | 391 | return refs_for_each_branch_ref(get_main_ref_store(the_repository), fn, cb_data); |
432ad41e MH |
392 | } |
393 | ||
7d2df051 NTND |
394 | int refs_for_each_remote_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
395 | { | |
396 | return refs_for_each_ref_in(refs, "refs/remotes/", fn, cb_data); | |
202a56a9 | 397 | } |
432ad41e | 398 | |
7bd9bcf3 | 399 | int for_each_remote_ref(each_ref_fn fn, void *cb_data) |
e9c4c111 | 400 | { |
23a3f0cb | 401 | return refs_for_each_remote_ref(get_main_ref_store(the_repository), fn, cb_data); |
202a56a9 MH |
402 | } |
403 | ||
7bd9bcf3 MH |
404 | int head_ref_namespaced(each_ref_fn fn, void *cb_data) |
405 | { | |
406 | struct strbuf buf = STRBUF_INIT; | |
407 | int ret = 0; | |
408 | struct object_id oid; | |
409 | int flag; | |
c774aab9 | 410 | |
7bd9bcf3 | 411 | strbuf_addf(&buf, "%sHEAD", get_git_namespace()); |
34c290a6 | 412 | if (!read_ref_full(buf.buf, RESOLVE_REF_READING, &oid, &flag)) |
7bd9bcf3 MH |
413 | ret = fn(buf.buf, &oid, flag, cb_data); |
414 | strbuf_release(&buf); | |
c774aab9 | 415 | |
7bd9bcf3 | 416 | return ret; |
e9c4c111 | 417 | } |
c774aab9 | 418 | |
65516f58 RA |
419 | void normalize_glob_ref(struct string_list_item *item, const char *prefix, |
420 | const char *pattern) | |
421 | { | |
422 | struct strbuf normalized_pattern = STRBUF_INIT; | |
423 | ||
424 | if (*pattern == '/') | |
425 | BUG("pattern must not start with '/'"); | |
426 | ||
427 | if (prefix) { | |
428 | strbuf_addstr(&normalized_pattern, prefix); | |
429 | } | |
430 | else if (!starts_with(pattern, "refs/")) | |
431 | strbuf_addstr(&normalized_pattern, "refs/"); | |
432 | strbuf_addstr(&normalized_pattern, pattern); | |
433 | strbuf_strip_suffix(&normalized_pattern, "/"); | |
434 | ||
435 | item->string = strbuf_detach(&normalized_pattern, NULL); | |
436 | item->util = has_glob_specials(pattern) ? NULL : item->string; | |
437 | strbuf_release(&normalized_pattern); | |
438 | } | |
439 | ||
7bd9bcf3 MH |
440 | int for_each_glob_ref_in(each_ref_fn fn, const char *pattern, |
441 | const char *prefix, void *cb_data) | |
662428f4 | 442 | { |
7bd9bcf3 MH |
443 | struct strbuf real_pattern = STRBUF_INIT; |
444 | struct ref_filter filter; | |
445 | int ret; | |
d08bae7e | 446 | |
59556548 | 447 | if (!prefix && !starts_with(pattern, "refs/")) |
d08bae7e | 448 | strbuf_addstr(&real_pattern, "refs/"); |
b09fe971 IL |
449 | else if (prefix) |
450 | strbuf_addstr(&real_pattern, prefix); | |
d08bae7e IL |
451 | strbuf_addstr(&real_pattern, pattern); |
452 | ||
894a9d33 | 453 | if (!has_glob_specials(pattern)) { |
9517e6b8 | 454 | /* Append implied '/' '*' if not present. */ |
00b6c178 | 455 | strbuf_complete(&real_pattern, '/'); |
d08bae7e IL |
456 | /* No need to check for '*', there is none. */ |
457 | strbuf_addch(&real_pattern, '*'); | |
458 | } | |
459 | ||
460 | filter.pattern = real_pattern.buf; | |
461 | filter.fn = fn; | |
462 | filter.cb_data = cb_data; | |
463 | ret = for_each_ref(filter_refs, &filter); | |
464 | ||
465 | strbuf_release(&real_pattern); | |
466 | return ret; | |
467 | } | |
468 | ||
b09fe971 IL |
469 | int for_each_glob_ref(each_ref_fn fn, const char *pattern, void *cb_data) |
470 | { | |
471 | return for_each_glob_ref_in(fn, pattern, NULL, cb_data); | |
472 | } | |
473 | ||
4577e483 | 474 | const char *prettify_refname(const char *name) |
a9c37a72 | 475 | { |
3e5b36c6 SG |
476 | if (skip_prefix(name, "refs/heads/", &name) || |
477 | skip_prefix(name, "refs/tags/", &name) || | |
478 | skip_prefix(name, "refs/remotes/", &name)) | |
479 | ; /* nothing */ | |
480 | return name; | |
a9c37a72 DB |
481 | } |
482 | ||
54457fe5 | 483 | static const char *ref_rev_parse_rules[] = { |
79803322 SP |
484 | "%.*s", |
485 | "refs/%.*s", | |
486 | "refs/tags/%.*s", | |
487 | "refs/heads/%.*s", | |
488 | "refs/remotes/%.*s", | |
489 | "refs/remotes/%.*s/HEAD", | |
490 | NULL | |
491 | }; | |
492 | ||
60650a48 JH |
493 | #define NUM_REV_PARSE_RULES (ARRAY_SIZE(ref_rev_parse_rules) - 1) |
494 | ||
495 | /* | |
496 | * Is it possible that the caller meant full_name with abbrev_name? | |
497 | * If so return a non-zero value to signal "yes"; the magnitude of | |
498 | * the returned value gives the precedence used for disambiguation. | |
499 | * | |
500 | * If abbrev_name cannot mean full_name, return 0. | |
501 | */ | |
54457fe5 | 502 | int refname_match(const char *abbrev_name, const char *full_name) |
79803322 SP |
503 | { |
504 | const char **p; | |
505 | const int abbrev_name_len = strlen(abbrev_name); | |
60650a48 | 506 | const int num_rules = NUM_REV_PARSE_RULES; |
79803322 | 507 | |
60650a48 JH |
508 | for (p = ref_rev_parse_rules; *p; p++) |
509 | if (!strcmp(full_name, mkpath(*p, abbrev_name_len, abbrev_name))) | |
510 | return &ref_rev_parse_rules[num_rules] - p; | |
79803322 SP |
511 | |
512 | return 0; | |
513 | } | |
514 | ||
b4be7410 BW |
515 | /* |
516 | * Given a 'prefix' expand it by the rules in 'ref_rev_parse_rules' and add | |
517 | * the results to 'prefixes' | |
518 | */ | |
519 | void expand_ref_prefix(struct argv_array *prefixes, const char *prefix) | |
520 | { | |
521 | const char **p; | |
522 | int len = strlen(prefix); | |
523 | ||
524 | for (p = ref_rev_parse_rules; *p; p++) | |
525 | argv_array_pushf(prefixes, *p, len, prefix); | |
526 | } | |
527 | ||
ff74f7f1 JH |
528 | /* |
529 | * *string and *len will only be substituted, and *string returned (for | |
530 | * later free()ing) if the string passed in is a magic short-hand form | |
531 | * to name a branch. | |
532 | */ | |
533 | static char *substitute_branch_name(const char **string, int *len) | |
534 | { | |
535 | struct strbuf buf = STRBUF_INIT; | |
0e9f62da | 536 | int ret = interpret_branch_name(*string, *len, &buf, 0); |
ff74f7f1 JH |
537 | |
538 | if (ret == *len) { | |
539 | size_t size; | |
540 | *string = strbuf_detach(&buf, &size); | |
541 | *len = size; | |
542 | return (char *)*string; | |
543 | } | |
544 | ||
545 | return NULL; | |
546 | } | |
547 | ||
cca5fa64 | 548 | int dwim_ref(const char *str, int len, struct object_id *oid, char **ref) |
ff74f7f1 JH |
549 | { |
550 | char *last_branch = substitute_branch_name(&str, &len); | |
cca5fa64 | 551 | int refs_found = expand_ref(str, len, oid, ref); |
41da7111 NTND |
552 | free(last_branch); |
553 | return refs_found; | |
554 | } | |
555 | ||
cca5fa64 | 556 | int expand_ref(const char *str, int len, struct object_id *oid, char **ref) |
41da7111 | 557 | { |
ff74f7f1 JH |
558 | const char **p, *r; |
559 | int refs_found = 0; | |
6cd4a898 | 560 | struct strbuf fullref = STRBUF_INIT; |
ff74f7f1 JH |
561 | |
562 | *ref = NULL; | |
563 | for (p = ref_rev_parse_rules; *p; p++) { | |
cca5fa64 | 564 | struct object_id oid_from_ref; |
565 | struct object_id *this_result; | |
ff74f7f1 JH |
566 | int flag; |
567 | ||
cca5fa64 | 568 | this_result = refs_found ? &oid_from_ref : oid; |
6cd4a898 JK |
569 | strbuf_reset(&fullref); |
570 | strbuf_addf(&fullref, *p, len, str); | |
571 | r = resolve_ref_unsafe(fullref.buf, RESOLVE_REF_READING, | |
49e61479 | 572 | this_result, &flag); |
ff74f7f1 JH |
573 | if (r) { |
574 | if (!refs_found++) | |
575 | *ref = xstrdup(r); | |
576 | if (!warn_ambiguous_refs) | |
577 | break; | |
6cd4a898 | 578 | } else if ((flag & REF_ISSYMREF) && strcmp(fullref.buf, "HEAD")) { |
661558f0 | 579 | warning(_("ignoring dangling symref %s"), fullref.buf); |
6cd4a898 | 580 | } else if ((flag & REF_ISBROKEN) && strchr(fullref.buf, '/')) { |
661558f0 | 581 | warning(_("ignoring broken ref %s"), fullref.buf); |
55956350 | 582 | } |
ff74f7f1 | 583 | } |
6cd4a898 | 584 | strbuf_release(&fullref); |
ff74f7f1 JH |
585 | return refs_found; |
586 | } | |
587 | ||
334dc52f | 588 | int dwim_log(const char *str, int len, struct object_id *oid, char **log) |
ff74f7f1 JH |
589 | { |
590 | char *last_branch = substitute_branch_name(&str, &len); | |
591 | const char **p; | |
592 | int logs_found = 0; | |
6cd4a898 | 593 | struct strbuf path = STRBUF_INIT; |
ff74f7f1 JH |
594 | |
595 | *log = NULL; | |
596 | for (p = ref_rev_parse_rules; *p; p++) { | |
334dc52f | 597 | struct object_id hash; |
ff74f7f1 JH |
598 | const char *ref, *it; |
599 | ||
6cd4a898 JK |
600 | strbuf_reset(&path); |
601 | strbuf_addf(&path, *p, len, str); | |
602 | ref = resolve_ref_unsafe(path.buf, RESOLVE_REF_READING, | |
49e61479 | 603 | &hash, NULL); |
ff74f7f1 JH |
604 | if (!ref) |
605 | continue; | |
6cd4a898 JK |
606 | if (reflog_exists(path.buf)) |
607 | it = path.buf; | |
608 | else if (strcmp(ref, path.buf) && reflog_exists(ref)) | |
ff74f7f1 JH |
609 | it = ref; |
610 | else | |
611 | continue; | |
612 | if (!logs_found++) { | |
613 | *log = xstrdup(it); | |
334dc52f | 614 | oidcpy(oid, &hash); |
ff74f7f1 | 615 | } |
7bd9bcf3 MH |
616 | if (!warn_ambiguous_refs) |
617 | break; | |
c0277d15 | 618 | } |
6cd4a898 | 619 | strbuf_release(&path); |
7bd9bcf3 MH |
620 | free(last_branch); |
621 | return logs_found; | |
2ddb5d17 BK |
622 | } |
623 | ||
266b1827 DT |
624 | static int is_per_worktree_ref(const char *refname) |
625 | { | |
ce414b33 | 626 | return !strcmp(refname, "HEAD") || |
a9be29c9 JS |
627 | starts_with(refname, "refs/bisect/") || |
628 | starts_with(refname, "refs/rewritten/"); | |
266b1827 DT |
629 | } |
630 | ||
631 | static int is_pseudoref_syntax(const char *refname) | |
632 | { | |
633 | const char *c; | |
634 | ||
635 | for (c = refname; *c; c++) { | |
636 | if (!isupper(*c) && *c != '-' && *c != '_') | |
637 | return 0; | |
638 | } | |
639 | ||
640 | return 1; | |
641 | } | |
642 | ||
643 | enum ref_type ref_type(const char *refname) | |
644 | { | |
645 | if (is_per_worktree_ref(refname)) | |
646 | return REF_TYPE_PER_WORKTREE; | |
647 | if (is_pseudoref_syntax(refname)) | |
648 | return REF_TYPE_PSEUDOREF; | |
649 | return REF_TYPE_NORMAL; | |
650 | } | |
651 | ||
4ff0f01c MH |
652 | long get_files_ref_lock_timeout_ms(void) |
653 | { | |
654 | static int configured = 0; | |
655 | ||
656 | /* The default timeout is 100 ms: */ | |
657 | static int timeout_ms = 100; | |
658 | ||
659 | if (!configured) { | |
660 | git_config_get_int("core.filesreflocktimeout", &timeout_ms); | |
661 | configured = 1; | |
662 | } | |
663 | ||
664 | return timeout_ms; | |
665 | } | |
666 | ||
ae077771 | 667 | static int write_pseudoref(const char *pseudoref, const struct object_id *oid, |
668 | const struct object_id *old_oid, struct strbuf *err) | |
74ec19d4 DT |
669 | { |
670 | const char *filename; | |
671 | int fd; | |
01084515 | 672 | struct lock_file lock = LOCK_INIT; |
74ec19d4 DT |
673 | struct strbuf buf = STRBUF_INIT; |
674 | int ret = -1; | |
675 | ||
6ee18216 | 676 | if (!oid) |
677 | return 0; | |
678 | ||
ae077771 | 679 | strbuf_addf(&buf, "%s\n", oid_to_hex(oid)); |
74ec19d4 DT |
680 | |
681 | filename = git_path("%s", pseudoref); | |
01084515 | 682 | fd = hold_lock_file_for_update_timeout(&lock, filename, 0, |
4ff0f01c | 683 | get_files_ref_lock_timeout_ms()); |
74ec19d4 | 684 | if (fd < 0) { |
661558f0 | 685 | strbuf_addf(err, _("could not open '%s' for writing: %s"), |
74ec19d4 | 686 | filename, strerror(errno)); |
aeb014f6 | 687 | goto done; |
74ec19d4 DT |
688 | } |
689 | ||
ae077771 | 690 | if (old_oid) { |
691 | struct object_id actual_old_oid; | |
2c3aed13 | 692 | |
db0210d4 MÅ |
693 | if (read_ref(pseudoref, &actual_old_oid)) { |
694 | if (!is_null_oid(old_oid)) { | |
661558f0 | 695 | strbuf_addf(err, _("could not read ref '%s'"), |
db0210d4 MÅ |
696 | pseudoref); |
697 | rollback_lock_file(&lock); | |
698 | goto done; | |
699 | } | |
700 | } else if (is_null_oid(old_oid)) { | |
661558f0 | 701 | strbuf_addf(err, _("ref '%s' already exists"), |
db0210d4 MÅ |
702 | pseudoref); |
703 | rollback_lock_file(&lock); | |
704 | goto done; | |
705 | } else if (oidcmp(&actual_old_oid, old_oid)) { | |
661558f0 | 706 | strbuf_addf(err, _("unexpected object ID when writing '%s'"), |
c0bdd658 | 707 | pseudoref); |
74ec19d4 DT |
708 | rollback_lock_file(&lock); |
709 | goto done; | |
710 | } | |
711 | } | |
712 | ||
06f46f23 | 713 | if (write_in_full(fd, buf.buf, buf.len) < 0) { |
661558f0 | 714 | strbuf_addf(err, _("could not write to '%s'"), filename); |
74ec19d4 DT |
715 | rollback_lock_file(&lock); |
716 | goto done; | |
717 | } | |
718 | ||
719 | commit_lock_file(&lock); | |
720 | ret = 0; | |
721 | done: | |
722 | strbuf_release(&buf); | |
723 | return ret; | |
724 | } | |
725 | ||
2616a5e5 | 726 | static int delete_pseudoref(const char *pseudoref, const struct object_id *old_oid) |
74ec19d4 | 727 | { |
74ec19d4 DT |
728 | const char *filename; |
729 | ||
730 | filename = git_path("%s", pseudoref); | |
731 | ||
2616a5e5 | 732 | if (old_oid && !is_null_oid(old_oid)) { |
3c6fad4a | 733 | struct lock_file lock = LOCK_INIT; |
74ec19d4 | 734 | int fd; |
2616a5e5 | 735 | struct object_id actual_old_oid; |
74ec19d4 | 736 | |
4ff0f01c | 737 | fd = hold_lock_file_for_update_timeout( |
3c6fad4a | 738 | &lock, filename, 0, |
4ff0f01c | 739 | get_files_ref_lock_timeout_ms()); |
3c6fad4a MÅ |
740 | if (fd < 0) { |
741 | error_errno(_("could not open '%s' for writing"), | |
742 | filename); | |
743 | return -1; | |
744 | } | |
34c290a6 | 745 | if (read_ref(pseudoref, &actual_old_oid)) |
661558f0 | 746 | die(_("could not read ref '%s'"), pseudoref); |
2616a5e5 | 747 | if (oidcmp(&actual_old_oid, old_oid)) { |
661558f0 | 748 | error(_("unexpected object ID when deleting '%s'"), |
c0bdd658 | 749 | pseudoref); |
74ec19d4 DT |
750 | rollback_lock_file(&lock); |
751 | return -1; | |
a4c653df | 752 | } |
74ec19d4 DT |
753 | |
754 | unlink(filename); | |
755 | rollback_lock_file(&lock); | |
756 | } else { | |
757 | unlink(filename); | |
4bd18c43 | 758 | } |
a4c653df | 759 | |
4bd18c43 | 760 | return 0; |
95fc7512 | 761 | } |
d556fae2 | 762 | |
c0fe4e8b NTND |
763 | int refs_delete_ref(struct ref_store *refs, const char *msg, |
764 | const char *refname, | |
2616a5e5 | 765 | const struct object_id *old_oid, |
c0fe4e8b | 766 | unsigned int flags) |
41b625b0 | 767 | { |
7521cc46 | 768 | struct ref_transaction *transaction; |
a4c653df | 769 | struct strbuf err = STRBUF_INIT; |
8b5157e4 | 770 | |
c0fe4e8b | 771 | if (ref_type(refname) == REF_TYPE_PSEUDOREF) { |
23a3f0cb | 772 | assert(refs == get_main_ref_store(the_repository)); |
2616a5e5 | 773 | return delete_pseudoref(refname, old_oid); |
c0fe4e8b | 774 | } |
d48744d1 | 775 | |
c0fe4e8b | 776 | transaction = ref_store_transaction_begin(refs, &err); |
7521cc46 | 777 | if (!transaction || |
89f3bbdd | 778 | ref_transaction_delete(transaction, refname, old_oid, |
755b49ae | 779 | flags, msg, &err) || |
db7516ab | 780 | ref_transaction_commit(transaction, &err)) { |
7521cc46 RS |
781 | error("%s", err.buf); |
782 | ref_transaction_free(transaction); | |
783 | strbuf_release(&err); | |
c0277d15 | 784 | return 1; |
41b625b0 | 785 | } |
7bd9bcf3 MH |
786 | ref_transaction_free(transaction); |
787 | strbuf_release(&err); | |
b531394d BC |
788 | return 0; |
789 | } | |
41b625b0 | 790 | |
c0fe4e8b | 791 | int delete_ref(const char *msg, const char *refname, |
2616a5e5 | 792 | const struct object_id *old_oid, unsigned int flags) |
c0fe4e8b | 793 | { |
23a3f0cb | 794 | return refs_delete_ref(get_main_ref_store(the_repository), msg, refname, |
2616a5e5 | 795 | old_oid, flags); |
c0fe4e8b NTND |
796 | } |
797 | ||
80a6c207 | 798 | void copy_reflog_msg(struct strbuf *sb, const char *msg) |
0ec29a47 | 799 | { |
0ec29a47 JH |
800 | char c; |
801 | int wasspace = 1; | |
8b5157e4 | 802 | |
80a6c207 | 803 | strbuf_addch(sb, '\t'); |
0ec29a47 JH |
804 | while ((c = *msg++)) { |
805 | if (wasspace && isspace(c)) | |
806 | continue; | |
807 | wasspace = isspace(c); | |
808 | if (wasspace) | |
809 | c = ' '; | |
80a6c207 | 810 | strbuf_addch(sb, c); |
a4c653df | 811 | } |
80a6c207 | 812 | strbuf_rtrim(sb); |
0ec29a47 | 813 | } |
8b5157e4 | 814 | |
4cb77009 | 815 | int should_autocreate_reflog(const char *refname) |
4e2bef57 | 816 | { |
341fb286 CW |
817 | switch (log_all_ref_updates) { |
818 | case LOG_REFS_ALWAYS: | |
819 | return 1; | |
820 | case LOG_REFS_NORMAL: | |
821 | return starts_with(refname, "refs/heads/") || | |
822 | starts_with(refname, "refs/remotes/") || | |
823 | starts_with(refname, "refs/notes/") || | |
824 | !strcmp(refname, "HEAD"); | |
825 | default: | |
4e2bef57 | 826 | return 0; |
341fb286 | 827 | } |
4e2bef57 DT |
828 | } |
829 | ||
e7e0f26e | 830 | int is_branch(const char *refname) |
c3b0dec5 | 831 | { |
59556548 | 832 | return !strcmp(refname, "HEAD") || starts_with(refname, "refs/heads/"); |
41b625b0 NP |
833 | } |
834 | ||
4207ed28 RS |
835 | struct read_ref_at_cb { |
836 | const char *refname; | |
dddbad72 | 837 | timestamp_t at_time; |
4207ed28 RS |
838 | int cnt; |
839 | int reccnt; | |
8eb36d94 | 840 | struct object_id *oid; |
4207ed28 RS |
841 | int found_it; |
842 | ||
8eb36d94 | 843 | struct object_id ooid; |
844 | struct object_id noid; | |
4207ed28 | 845 | int tz; |
dddbad72 | 846 | timestamp_t date; |
4207ed28 | 847 | char **msg; |
dddbad72 | 848 | timestamp_t *cutoff_time; |
4207ed28 RS |
849 | int *cutoff_tz; |
850 | int *cutoff_cnt; | |
851 | }; | |
852 | ||
9461d272 | 853 | static int read_ref_at_ent(struct object_id *ooid, struct object_id *noid, |
dddbad72 | 854 | const char *email, timestamp_t timestamp, int tz, |
4207ed28 RS |
855 | const char *message, void *cb_data) |
856 | { | |
857 | struct read_ref_at_cb *cb = cb_data; | |
858 | ||
859 | cb->reccnt++; | |
860 | cb->tz = tz; | |
861 | cb->date = timestamp; | |
862 | ||
863 | if (timestamp <= cb->at_time || cb->cnt == 0) { | |
864 | if (cb->msg) | |
865 | *cb->msg = xstrdup(message); | |
866 | if (cb->cutoff_time) | |
867 | *cb->cutoff_time = timestamp; | |
868 | if (cb->cutoff_tz) | |
869 | *cb->cutoff_tz = tz; | |
870 | if (cb->cutoff_cnt) | |
871 | *cb->cutoff_cnt = cb->reccnt - 1; | |
872 | /* | |
78fb4579 | 873 | * we have not yet updated cb->[n|o]oid so they still |
4207ed28 RS |
874 | * hold the values for the previous record. |
875 | */ | |
8eb36d94 | 876 | if (!is_null_oid(&cb->ooid)) { |
877 | oidcpy(cb->oid, noid); | |
878 | if (oidcmp(&cb->ooid, noid)) | |
661558f0 | 879 | warning(_("log for ref %s has gap after %s"), |
a5481a6c | 880 | cb->refname, show_date(cb->date, cb->tz, DATE_MODE(RFC2822))); |
4207ed28 RS |
881 | } |
882 | else if (cb->date == cb->at_time) | |
8eb36d94 | 883 | oidcpy(cb->oid, noid); |
884 | else if (oidcmp(noid, cb->oid)) | |
661558f0 | 885 | warning(_("log for ref %s unexpectedly ended on %s"), |
4207ed28 | 886 | cb->refname, show_date(cb->date, cb->tz, |
a5481a6c | 887 | DATE_MODE(RFC2822))); |
8eb36d94 | 888 | oidcpy(&cb->ooid, ooid); |
889 | oidcpy(&cb->noid, noid); | |
4207ed28 RS |
890 | cb->found_it = 1; |
891 | return 1; | |
892 | } | |
8eb36d94 | 893 | oidcpy(&cb->ooid, ooid); |
894 | oidcpy(&cb->noid, noid); | |
4207ed28 RS |
895 | if (cb->cnt > 0) |
896 | cb->cnt--; | |
897 | return 0; | |
898 | } | |
899 | ||
9461d272 | 900 | static int read_ref_at_ent_oldest(struct object_id *ooid, struct object_id *noid, |
dddbad72 | 901 | const char *email, timestamp_t timestamp, |
4207ed28 RS |
902 | int tz, const char *message, void *cb_data) |
903 | { | |
904 | struct read_ref_at_cb *cb = cb_data; | |
905 | ||
906 | if (cb->msg) | |
907 | *cb->msg = xstrdup(message); | |
908 | if (cb->cutoff_time) | |
909 | *cb->cutoff_time = timestamp; | |
910 | if (cb->cutoff_tz) | |
911 | *cb->cutoff_tz = tz; | |
912 | if (cb->cutoff_cnt) | |
913 | *cb->cutoff_cnt = cb->reccnt; | |
8eb36d94 | 914 | oidcpy(cb->oid, ooid); |
915 | if (is_null_oid(cb->oid)) | |
916 | oidcpy(cb->oid, noid); | |
4207ed28 RS |
917 | /* We just want the first entry */ |
918 | return 1; | |
16d7cc90 JH |
919 | } |
920 | ||
dddbad72 | 921 | int read_ref_at(const char *refname, unsigned int flags, timestamp_t at_time, int cnt, |
8eb36d94 | 922 | struct object_id *oid, char **msg, |
dddbad72 | 923 | timestamp_t *cutoff_time, int *cutoff_tz, int *cutoff_cnt) |
d556fae2 | 924 | { |
4207ed28 | 925 | struct read_ref_at_cb cb; |
d556fae2 | 926 | |
4207ed28 RS |
927 | memset(&cb, 0, sizeof(cb)); |
928 | cb.refname = refname; | |
929 | cb.at_time = at_time; | |
930 | cb.cnt = cnt; | |
931 | cb.msg = msg; | |
932 | cb.cutoff_time = cutoff_time; | |
933 | cb.cutoff_tz = cutoff_tz; | |
934 | cb.cutoff_cnt = cutoff_cnt; | |
8eb36d94 | 935 | cb.oid = oid; |
4207ed28 RS |
936 | |
937 | for_each_reflog_ent_reverse(refname, read_ref_at_ent, &cb); | |
938 | ||
c41a87dd | 939 | if (!cb.reccnt) { |
321c89bf | 940 | if (flags & GET_OID_QUIETLY) |
c41a87dd DA |
941 | exit(128); |
942 | else | |
661558f0 | 943 | die(_("log for %s is empty"), refname); |
c41a87dd | 944 | } |
4207ed28 RS |
945 | if (cb.found_it) |
946 | return 0; | |
947 | ||
948 | for_each_reflog_ent(refname, read_ref_at_ent_oldest, &cb); | |
d556fae2 | 949 | |
16d7cc90 | 950 | return 1; |
d556fae2 | 951 | } |
2ff81662 | 952 | |
c0fe4e8b NTND |
953 | struct ref_transaction *ref_store_transaction_begin(struct ref_store *refs, |
954 | struct strbuf *err) | |
caa4046c | 955 | { |
c0fe4e8b | 956 | struct ref_transaction *tr; |
5a603b04 JN |
957 | assert(err); |
958 | ||
c0fe4e8b NTND |
959 | tr = xcalloc(1, sizeof(struct ref_transaction)); |
960 | tr->ref_store = refs; | |
961 | return tr; | |
962 | } | |
963 | ||
964 | struct ref_transaction *ref_transaction_begin(struct strbuf *err) | |
965 | { | |
23a3f0cb | 966 | return ref_store_transaction_begin(get_main_ref_store(the_repository), err); |
caa4046c MH |
967 | } |
968 | ||
026bd1d3 | 969 | void ref_transaction_free(struct ref_transaction *transaction) |
caa4046c | 970 | { |
43a2dfde | 971 | size_t i; |
caa4046c | 972 | |
1b07255c RS |
973 | if (!transaction) |
974 | return; | |
975 | ||
30173b88 MH |
976 | switch (transaction->state) { |
977 | case REF_TRANSACTION_OPEN: | |
978 | case REF_TRANSACTION_CLOSED: | |
979 | /* OK */ | |
980 | break; | |
981 | case REF_TRANSACTION_PREPARED: | |
033abf97 | 982 | BUG("free called on a prepared reference transaction"); |
30173b88 MH |
983 | break; |
984 | default: | |
033abf97 | 985 | BUG("unexpected reference transaction state"); |
30173b88 MH |
986 | break; |
987 | } | |
988 | ||
db7516ab RS |
989 | for (i = 0; i < transaction->nr; i++) { |
990 | free(transaction->updates[i]->msg); | |
88615910 | 991 | free(transaction->updates[i]); |
db7516ab | 992 | } |
caa4046c MH |
993 | free(transaction->updates); |
994 | free(transaction); | |
995 | } | |
996 | ||
71564516 MH |
997 | struct ref_update *ref_transaction_add_update( |
998 | struct ref_transaction *transaction, | |
999 | const char *refname, unsigned int flags, | |
89f3bbdd | 1000 | const struct object_id *new_oid, |
1001 | const struct object_id *old_oid, | |
71564516 | 1002 | const char *msg) |
caa4046c | 1003 | { |
96ffc06f | 1004 | struct ref_update *update; |
71564516 MH |
1005 | |
1006 | if (transaction->state != REF_TRANSACTION_OPEN) | |
033abf97 | 1007 | BUG("update called for transaction that is not open"); |
71564516 | 1008 | |
96ffc06f | 1009 | FLEX_ALLOC_STR(update, refname, refname); |
caa4046c MH |
1010 | ALLOC_GROW(transaction->updates, transaction->nr + 1, transaction->alloc); |
1011 | transaction->updates[transaction->nr++] = update; | |
71564516 MH |
1012 | |
1013 | update->flags = flags; | |
1014 | ||
1015 | if (flags & REF_HAVE_NEW) | |
89f3bbdd | 1016 | oidcpy(&update->new_oid, new_oid); |
71564516 | 1017 | if (flags & REF_HAVE_OLD) |
89f3bbdd | 1018 | oidcpy(&update->old_oid, old_oid); |
13092a91 | 1019 | update->msg = xstrdup_or_null(msg); |
caa4046c MH |
1020 | return update; |
1021 | } | |
1022 | ||
8e34800e RS |
1023 | int ref_transaction_update(struct ref_transaction *transaction, |
1024 | const char *refname, | |
89f3bbdd | 1025 | const struct object_id *new_oid, |
1026 | const struct object_id *old_oid, | |
1d147bdf | 1027 | unsigned int flags, const char *msg, |
8e34800e | 1028 | struct strbuf *err) |
caa4046c | 1029 | { |
5a603b04 JN |
1030 | assert(err); |
1031 | ||
89f3bbdd | 1032 | if ((new_oid && !is_null_oid(new_oid)) ? |
8a679de6 MH |
1033 | check_refname_format(refname, REFNAME_ALLOW_ONELEVEL) : |
1034 | !refname_is_safe(refname)) { | |
661558f0 | 1035 | strbuf_addf(err, _("refusing to update ref with bad name '%s'"), |
d0f810f0 RS |
1036 | refname); |
1037 | return -1; | |
1038 | } | |
1039 | ||
a9bbbcec MH |
1040 | if (flags & ~REF_TRANSACTION_UPDATE_ALLOWED_FLAGS) |
1041 | BUG("illegal flags 0x%x passed to ref_transaction_update()", flags); | |
c788c54c | 1042 | |
89f3bbdd | 1043 | flags |= (new_oid ? REF_HAVE_NEW : 0) | (old_oid ? REF_HAVE_OLD : 0); |
71564516 MH |
1044 | |
1045 | ref_transaction_add_update(transaction, refname, flags, | |
89f3bbdd | 1046 | new_oid, old_oid, msg); |
8e34800e | 1047 | return 0; |
caa4046c MH |
1048 | } |
1049 | ||
b416af5b RS |
1050 | int ref_transaction_create(struct ref_transaction *transaction, |
1051 | const char *refname, | |
89f3bbdd | 1052 | const struct object_id *new_oid, |
fec14ec3 | 1053 | unsigned int flags, const char *msg, |
b416af5b | 1054 | struct strbuf *err) |
caa4046c | 1055 | { |
89f3bbdd | 1056 | if (!new_oid || is_null_oid(new_oid)) |
033abf97 | 1057 | BUG("create called without valid new_oid"); |
89f3bbdd | 1058 | return ref_transaction_update(transaction, refname, new_oid, |
1059 | &null_oid, flags, msg, err); | |
caa4046c MH |
1060 | } |
1061 | ||
8c8bdc0d RS |
1062 | int ref_transaction_delete(struct ref_transaction *transaction, |
1063 | const char *refname, | |
89f3bbdd | 1064 | const struct object_id *old_oid, |
fb5a6bb6 | 1065 | unsigned int flags, const char *msg, |
8c8bdc0d | 1066 | struct strbuf *err) |
caa4046c | 1067 | { |
89f3bbdd | 1068 | if (old_oid && is_null_oid(old_oid)) |
033abf97 | 1069 | BUG("delete called with old_oid set to zeros"); |
1d147bdf | 1070 | return ref_transaction_update(transaction, refname, |
89f3bbdd | 1071 | &null_oid, old_oid, |
1d147bdf | 1072 | flags, msg, err); |
caa4046c MH |
1073 | } |
1074 | ||
16180334 MH |
1075 | int ref_transaction_verify(struct ref_transaction *transaction, |
1076 | const char *refname, | |
89f3bbdd | 1077 | const struct object_id *old_oid, |
16180334 MH |
1078 | unsigned int flags, |
1079 | struct strbuf *err) | |
1080 | { | |
89f3bbdd | 1081 | if (!old_oid) |
033abf97 | 1082 | BUG("verify called with old_oid set to NULL"); |
16180334 | 1083 | return ref_transaction_update(transaction, refname, |
89f3bbdd | 1084 | NULL, old_oid, |
16180334 MH |
1085 | flags, NULL, err); |
1086 | } | |
1087 | ||
c0fe4e8b | 1088 | int refs_update_ref(struct ref_store *refs, const char *msg, |
ae077771 | 1089 | const char *refname, const struct object_id *new_oid, |
1090 | const struct object_id *old_oid, unsigned int flags, | |
c0fe4e8b | 1091 | enum action_on_err onerr) |
4738a333 | 1092 | { |
74ec19d4 | 1093 | struct ref_transaction *t = NULL; |
b4d75ac1 | 1094 | struct strbuf err = STRBUF_INIT; |
74ec19d4 | 1095 | int ret = 0; |
b4d75ac1 | 1096 | |
74ec19d4 | 1097 | if (ref_type(refname) == REF_TYPE_PSEUDOREF) { |
23a3f0cb | 1098 | assert(refs == get_main_ref_store(the_repository)); |
ae077771 | 1099 | ret = write_pseudoref(refname, new_oid, old_oid, &err); |
74ec19d4 | 1100 | } else { |
c0fe4e8b | 1101 | t = ref_store_transaction_begin(refs, &err); |
74ec19d4 | 1102 | if (!t || |
89f3bbdd | 1103 | ref_transaction_update(t, refname, new_oid, old_oid, |
74ec19d4 DT |
1104 | flags, msg, &err) || |
1105 | ref_transaction_commit(t, &err)) { | |
1106 | ret = 1; | |
1107 | ref_transaction_free(t); | |
1108 | } | |
1109 | } | |
1110 | if (ret) { | |
661558f0 | 1111 | const char *str = _("update_ref failed for ref '%s': %s"); |
b4d75ac1 | 1112 | |
b4d75ac1 RS |
1113 | switch (onerr) { |
1114 | case UPDATE_REFS_MSG_ON_ERR: | |
1115 | error(str, refname, err.buf); | |
1116 | break; | |
1117 | case UPDATE_REFS_DIE_ON_ERR: | |
1118 | die(str, refname, err.buf); | |
1119 | break; | |
1120 | case UPDATE_REFS_QUIET_ON_ERR: | |
1121 | break; | |
1122 | } | |
1123 | strbuf_release(&err); | |
4738a333 | 1124 | return 1; |
b4d75ac1 RS |
1125 | } |
1126 | strbuf_release(&err); | |
74ec19d4 DT |
1127 | if (t) |
1128 | ref_transaction_free(t); | |
b4d75ac1 | 1129 | return 0; |
4738a333 BK |
1130 | } |
1131 | ||
c0fe4e8b | 1132 | int update_ref(const char *msg, const char *refname, |
ae077771 | 1133 | const struct object_id *new_oid, |
1134 | const struct object_id *old_oid, | |
c0fe4e8b NTND |
1135 | unsigned int flags, enum action_on_err onerr) |
1136 | { | |
23a3f0cb | 1137 | return refs_update_ref(get_main_ref_store(the_repository), msg, refname, new_oid, |
ae077771 | 1138 | old_oid, flags, onerr); |
c0fe4e8b NTND |
1139 | } |
1140 | ||
dfefa935 | 1141 | char *shorten_unambiguous_ref(const char *refname, int strict) |
7c2b3029 JK |
1142 | { |
1143 | int i; | |
1144 | static char **scanf_fmts; | |
1145 | static int nr_rules; | |
1146 | char *short_name; | |
6cd4a898 | 1147 | struct strbuf resolved_buf = STRBUF_INIT; |
7c2b3029 | 1148 | |
7c2b3029 | 1149 | if (!nr_rules) { |
4346663a MH |
1150 | /* |
1151 | * Pre-generate scanf formats from ref_rev_parse_rules[]. | |
1152 | * Generate a format suitable for scanf from a | |
1153 | * ref_rev_parse_rules rule by interpolating "%s" at the | |
1154 | * location of the "%.*s". | |
1155 | */ | |
7c2b3029 | 1156 | size_t total_len = 0; |
84d5633f | 1157 | size_t offset = 0; |
7c2b3029 JK |
1158 | |
1159 | /* the rule list is NULL terminated, count them first */ | |
a4165851 | 1160 | for (nr_rules = 0; ref_rev_parse_rules[nr_rules]; nr_rules++) |
7902fe03 MH |
1161 | /* -2 for strlen("%.*s") - strlen("%s"); +1 for NUL */ |
1162 | total_len += strlen(ref_rev_parse_rules[nr_rules]) - 2 + 1; | |
7c2b3029 | 1163 | |
50492f7b | 1164 | scanf_fmts = xmalloc(st_add(st_mult(sizeof(char *), nr_rules), total_len)); |
7c2b3029 | 1165 | |
84d5633f | 1166 | offset = 0; |
7c2b3029 | 1167 | for (i = 0; i < nr_rules; i++) { |
4346663a | 1168 | assert(offset < total_len); |
84d5633f | 1169 | scanf_fmts[i] = (char *)&scanf_fmts[nr_rules] + offset; |
bf4baf1f JK |
1170 | offset += xsnprintf(scanf_fmts[i], total_len - offset, |
1171 | ref_rev_parse_rules[i], 2, "%s") + 1; | |
7c2b3029 JK |
1172 | } |
1173 | } | |
1174 | ||
1175 | /* bail out if there are no rules */ | |
1176 | if (!nr_rules) | |
dfefa935 | 1177 | return xstrdup(refname); |
7c2b3029 | 1178 | |
dfefa935 MH |
1179 | /* buffer for scanf result, at most refname must fit */ |
1180 | short_name = xstrdup(refname); | |
7c2b3029 JK |
1181 | |
1182 | /* skip first rule, it will always match */ | |
1183 | for (i = nr_rules - 1; i > 0 ; --i) { | |
1184 | int j; | |
6e7b3309 | 1185 | int rules_to_fail = i; |
7c2b3029 JK |
1186 | int short_name_len; |
1187 | ||
dfefa935 | 1188 | if (1 != sscanf(refname, scanf_fmts[i], short_name)) |
7c2b3029 JK |
1189 | continue; |
1190 | ||
1191 | short_name_len = strlen(short_name); | |
1192 | ||
6e7b3309 BW |
1193 | /* |
1194 | * in strict mode, all (except the matched one) rules | |
1195 | * must fail to resolve to a valid non-ambiguous ref | |
1196 | */ | |
1197 | if (strict) | |
1198 | rules_to_fail = nr_rules; | |
1199 | ||
7c2b3029 JK |
1200 | /* |
1201 | * check if the short name resolves to a valid ref, | |
1202 | * but use only rules prior to the matched one | |
1203 | */ | |
6e7b3309 | 1204 | for (j = 0; j < rules_to_fail; j++) { |
7c2b3029 | 1205 | const char *rule = ref_rev_parse_rules[j]; |
7c2b3029 | 1206 | |
6e7b3309 BW |
1207 | /* skip matched rule */ |
1208 | if (i == j) | |
1209 | continue; | |
1210 | ||
7c2b3029 JK |
1211 | /* |
1212 | * the short name is ambiguous, if it resolves | |
1213 | * (with this previous rule) to a valid ref | |
1214 | * read_ref() returns 0 on success | |
1215 | */ | |
6cd4a898 JK |
1216 | strbuf_reset(&resolved_buf); |
1217 | strbuf_addf(&resolved_buf, rule, | |
1218 | short_name_len, short_name); | |
1219 | if (ref_exists(resolved_buf.buf)) | |
7c2b3029 JK |
1220 | break; |
1221 | } | |
1222 | ||
1223 | /* | |
1224 | * short name is non-ambiguous if all previous rules | |
1225 | * haven't resolved to a valid ref | |
1226 | */ | |
6cd4a898 JK |
1227 | if (j == rules_to_fail) { |
1228 | strbuf_release(&resolved_buf); | |
7c2b3029 | 1229 | return short_name; |
6cd4a898 | 1230 | } |
7c2b3029 JK |
1231 | } |
1232 | ||
6cd4a898 | 1233 | strbuf_release(&resolved_buf); |
7c2b3029 | 1234 | free(short_name); |
dfefa935 | 1235 | return xstrdup(refname); |
7c2b3029 | 1236 | } |
daebaa78 JH |
1237 | |
1238 | static struct string_list *hide_refs; | |
1239 | ||
1240 | int parse_hide_refs_config(const char *var, const char *value, const char *section) | |
1241 | { | |
ad8c7cda | 1242 | const char *key; |
daebaa78 | 1243 | if (!strcmp("transfer.hiderefs", var) || |
ad8c7cda JK |
1244 | (!parse_config_key(var, section, NULL, NULL, &key) && |
1245 | !strcmp(key, "hiderefs"))) { | |
daebaa78 JH |
1246 | char *ref; |
1247 | int len; | |
1248 | ||
1249 | if (!value) | |
1250 | return config_error_nonbool(var); | |
1251 | ref = xstrdup(value); | |
1252 | len = strlen(ref); | |
1253 | while (len && ref[len - 1] == '/') | |
1254 | ref[--len] = '\0'; | |
1255 | if (!hide_refs) { | |
1256 | hide_refs = xcalloc(1, sizeof(*hide_refs)); | |
1257 | hide_refs->strdup_strings = 1; | |
1258 | } | |
1259 | string_list_append(hide_refs, ref); | |
1260 | } | |
1261 | return 0; | |
1262 | } | |
1263 | ||
78a766ab | 1264 | int ref_is_hidden(const char *refname, const char *refname_full) |
daebaa78 | 1265 | { |
2bc31d16 | 1266 | int i; |
daebaa78 JH |
1267 | |
1268 | if (!hide_refs) | |
1269 | return 0; | |
2bc31d16 JK |
1270 | for (i = hide_refs->nr - 1; i >= 0; i--) { |
1271 | const char *match = hide_refs->items[i].string; | |
78a766ab | 1272 | const char *subject; |
2bc31d16 | 1273 | int neg = 0; |
7a40a95e | 1274 | const char *p; |
2bc31d16 JK |
1275 | |
1276 | if (*match == '!') { | |
1277 | neg = 1; | |
1278 | match++; | |
1279 | } | |
1280 | ||
78a766ab LF |
1281 | if (*match == '^') { |
1282 | subject = refname_full; | |
1283 | match++; | |
1284 | } else { | |
1285 | subject = refname; | |
1286 | } | |
1287 | ||
1288 | /* refname can be NULL when namespaces are used. */ | |
7a40a95e CC |
1289 | if (subject && |
1290 | skip_prefix(subject, match, &p) && | |
1291 | (!*p || *p == '/')) | |
2bc31d16 | 1292 | return !neg; |
daebaa78 JH |
1293 | } |
1294 | return 0; | |
1295 | } | |
fa5b1830 | 1296 | |
0845122c DT |
1297 | const char *find_descendant_ref(const char *dirname, |
1298 | const struct string_list *extras, | |
1299 | const struct string_list *skip) | |
fa5b1830 | 1300 | { |
0845122c | 1301 | int pos; |
fa5b1830 | 1302 | |
0845122c DT |
1303 | if (!extras) |
1304 | return NULL; | |
fa5b1830 MH |
1305 | |
1306 | /* | |
0845122c DT |
1307 | * Look at the place where dirname would be inserted into |
1308 | * extras. If there is an entry at that position that starts | |
1309 | * with dirname (remember, dirname includes the trailing | |
1310 | * slash) and is not in skip, then we have a conflict. | |
fa5b1830 | 1311 | */ |
0845122c DT |
1312 | for (pos = string_list_find_insert_index(extras, dirname, 0); |
1313 | pos < extras->nr; pos++) { | |
1314 | const char *extra_refname = extras->items[pos].string; | |
fa5b1830 | 1315 | |
0845122c DT |
1316 | if (!starts_with(extra_refname, dirname)) |
1317 | break; | |
1318 | ||
1319 | if (!skip || !string_list_has_string(skip, extra_refname)) | |
1320 | return extra_refname; | |
fa5b1830 | 1321 | } |
0845122c DT |
1322 | return NULL; |
1323 | } | |
fa5b1830 | 1324 | |
7d2df051 NTND |
1325 | int refs_rename_ref_available(struct ref_store *refs, |
1326 | const char *old_refname, | |
1327 | const char *new_refname) | |
0845122c DT |
1328 | { |
1329 | struct string_list skip = STRING_LIST_INIT_NODUP; | |
1330 | struct strbuf err = STRBUF_INIT; | |
ff3a299c | 1331 | int ok; |
fa5b1830 | 1332 | |
ff3a299c | 1333 | string_list_insert(&skip, old_refname); |
7d2df051 NTND |
1334 | ok = !refs_verify_refname_available(refs, new_refname, |
1335 | NULL, &skip, &err); | |
ff3a299c | 1336 | if (!ok) |
0845122c DT |
1337 | error("%s", err.buf); |
1338 | ||
1339 | string_list_clear(&skip, 0); | |
1340 | strbuf_release(&err); | |
ff3a299c | 1341 | return ok; |
fa5b1830 | 1342 | } |
2bf68ed5 | 1343 | |
62f0b399 | 1344 | int refs_head_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
2bf68ed5 DT |
1345 | { |
1346 | struct object_id oid; | |
1347 | int flag; | |
1348 | ||
62f0b399 | 1349 | if (!refs_read_ref_full(refs, "HEAD", RESOLVE_REF_READING, |
34c290a6 | 1350 | &oid, &flag)) |
2bf68ed5 DT |
1351 | return fn("HEAD", &oid, flag, cb_data); |
1352 | ||
1353 | return 0; | |
1354 | } | |
1355 | ||
1356 | int head_ref(each_ref_fn fn, void *cb_data) | |
1357 | { | |
23a3f0cb | 1358 | return refs_head_ref(get_main_ref_store(the_repository), fn, cb_data); |
2bf68ed5 | 1359 | } |
93770590 | 1360 | |
e121b9cb MH |
1361 | struct ref_iterator *refs_ref_iterator_begin( |
1362 | struct ref_store *refs, | |
1363 | const char *prefix, int trim, int flags) | |
1364 | { | |
1365 | struct ref_iterator *iter; | |
1366 | ||
0a0865b8 MH |
1367 | if (ref_paranoia < 0) |
1368 | ref_paranoia = git_env_bool("GIT_REF_PARANOIA", 0); | |
1369 | if (ref_paranoia) | |
1370 | flags |= DO_FOR_EACH_INCLUDE_BROKEN; | |
1371 | ||
e121b9cb | 1372 | iter = refs->be->iterator_begin(refs, prefix, flags); |
c7599718 MH |
1373 | |
1374 | /* | |
1375 | * `iterator_begin()` already takes care of prefix, but we | |
1376 | * might need to do some trimming: | |
1377 | */ | |
1378 | if (trim) | |
1379 | iter = prefix_ref_iterator_begin(iter, "", trim); | |
e121b9cb | 1380 | |
8738a8a4 MH |
1381 | /* Sanity check for subclasses: */ |
1382 | if (!iter->ordered) | |
1383 | BUG("reference iterator is not ordered"); | |
1384 | ||
e121b9cb MH |
1385 | return iter; |
1386 | } | |
1387 | ||
4c4de895 MH |
1388 | /* |
1389 | * Call fn for each reference in the specified submodule for which the | |
1390 | * refname begins with prefix. If trim is non-zero, then trim that | |
1391 | * many characters off the beginning of each refname before passing | |
1392 | * the refname to fn. flags can be DO_FOR_EACH_INCLUDE_BROKEN to | |
1393 | * include broken references in the iteration. If fn ever returns a | |
1394 | * non-zero value, stop the iteration and return that value; | |
1395 | * otherwise, return 0. | |
1396 | */ | |
4a6067cd SB |
1397 | static int do_for_each_repo_ref(struct repository *r, const char *prefix, |
1398 | each_repo_ref_fn fn, int trim, int flags, | |
1399 | void *cb_data) | |
1400 | { | |
1401 | struct ref_iterator *iter; | |
1402 | struct ref_store *refs = get_main_ref_store(r); | |
1403 | ||
1404 | if (!refs) | |
1405 | return 0; | |
1406 | ||
1407 | iter = refs_ref_iterator_begin(refs, prefix, trim, flags); | |
1408 | ||
1409 | return do_for_each_repo_ref_iterator(r, iter, fn, cb_data); | |
1410 | } | |
1411 | ||
1412 | struct do_for_each_ref_help { | |
1413 | each_ref_fn *fn; | |
1414 | void *cb_data; | |
1415 | }; | |
1416 | ||
1417 | static int do_for_each_ref_helper(struct repository *r, | |
1418 | const char *refname, | |
1419 | const struct object_id *oid, | |
1420 | int flags, | |
1421 | void *cb_data) | |
1422 | { | |
1423 | struct do_for_each_ref_help *hp = cb_data; | |
1424 | ||
1425 | return hp->fn(refname, oid, flags, hp->cb_data); | |
1426 | } | |
1427 | ||
7d2df051 | 1428 | static int do_for_each_ref(struct ref_store *refs, const char *prefix, |
4c4de895 MH |
1429 | each_ref_fn fn, int trim, int flags, void *cb_data) |
1430 | { | |
1431 | struct ref_iterator *iter; | |
4a6067cd | 1432 | struct do_for_each_ref_help hp = { fn, cb_data }; |
4c4de895 | 1433 | |
00eebe35 MH |
1434 | if (!refs) |
1435 | return 0; | |
1436 | ||
e121b9cb | 1437 | iter = refs_ref_iterator_begin(refs, prefix, trim, flags); |
4c4de895 | 1438 | |
4a6067cd SB |
1439 | return do_for_each_repo_ref_iterator(the_repository, iter, |
1440 | do_for_each_ref_helper, &hp); | |
4c4de895 MH |
1441 | } |
1442 | ||
7d2df051 NTND |
1443 | int refs_for_each_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
1444 | { | |
1445 | return do_for_each_ref(refs, "", fn, 0, 0, cb_data); | |
1446 | } | |
1447 | ||
93770590 DT |
1448 | int for_each_ref(each_ref_fn fn, void *cb_data) |
1449 | { | |
23a3f0cb | 1450 | return refs_for_each_ref(get_main_ref_store(the_repository), fn, cb_data); |
93770590 DT |
1451 | } |
1452 | ||
7d2df051 NTND |
1453 | int refs_for_each_ref_in(struct ref_store *refs, const char *prefix, |
1454 | each_ref_fn fn, void *cb_data) | |
1455 | { | |
1456 | return do_for_each_ref(refs, prefix, fn, strlen(prefix), 0, cb_data); | |
93770590 DT |
1457 | } |
1458 | ||
1459 | int for_each_ref_in(const char *prefix, each_ref_fn fn, void *cb_data) | |
1460 | { | |
23a3f0cb | 1461 | return refs_for_each_ref_in(get_main_ref_store(the_repository), prefix, fn, cb_data); |
93770590 DT |
1462 | } |
1463 | ||
1464 | int for_each_fullref_in(const char *prefix, each_ref_fn fn, void *cb_data, unsigned int broken) | |
1465 | { | |
1466 | unsigned int flag = 0; | |
1467 | ||
1468 | if (broken) | |
1469 | flag = DO_FOR_EACH_INCLUDE_BROKEN; | |
23a3f0cb | 1470 | return do_for_each_ref(get_main_ref_store(the_repository), |
7d2df051 | 1471 | prefix, fn, 0, flag, cb_data); |
93770590 DT |
1472 | } |
1473 | ||
073cf63c NTND |
1474 | int refs_for_each_fullref_in(struct ref_store *refs, const char *prefix, |
1475 | each_ref_fn fn, void *cb_data, | |
1476 | unsigned int broken) | |
03df567f MH |
1477 | { |
1478 | unsigned int flag = 0; | |
1479 | ||
1480 | if (broken) | |
1481 | flag = DO_FOR_EACH_INCLUDE_BROKEN; | |
073cf63c | 1482 | return do_for_each_ref(refs, prefix, fn, 0, flag, cb_data); |
03df567f MH |
1483 | } |
1484 | ||
212e0f7e | 1485 | int for_each_replace_ref(struct repository *r, each_repo_ref_fn fn, void *cb_data) |
93770590 | 1486 | { |
212e0f7e SB |
1487 | return do_for_each_repo_ref(r, git_replace_ref_base, fn, |
1488 | strlen(git_replace_ref_base), | |
1489 | DO_FOR_EACH_INCLUDE_BROKEN, cb_data); | |
93770590 DT |
1490 | } |
1491 | ||
1492 | int for_each_namespaced_ref(each_ref_fn fn, void *cb_data) | |
1493 | { | |
1494 | struct strbuf buf = STRBUF_INIT; | |
1495 | int ret; | |
1496 | strbuf_addf(&buf, "%srefs/", get_git_namespace()); | |
23a3f0cb | 1497 | ret = do_for_each_ref(get_main_ref_store(the_repository), |
7d2df051 | 1498 | buf.buf, fn, 0, 0, cb_data); |
93770590 DT |
1499 | strbuf_release(&buf); |
1500 | return ret; | |
1501 | } | |
1502 | ||
7d2df051 | 1503 | int refs_for_each_rawref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
93770590 | 1504 | { |
7d2df051 | 1505 | return do_for_each_ref(refs, "", fn, 0, |
93770590 DT |
1506 | DO_FOR_EACH_INCLUDE_BROKEN, cb_data); |
1507 | } | |
2d0663b2 | 1508 | |
7d2df051 NTND |
1509 | int for_each_rawref(each_ref_fn fn, void *cb_data) |
1510 | { | |
23a3f0cb | 1511 | return refs_for_each_rawref(get_main_ref_store(the_repository), fn, cb_data); |
7d2df051 NTND |
1512 | } |
1513 | ||
470be518 | 1514 | int refs_read_raw_ref(struct ref_store *ref_store, |
99afe91a | 1515 | const char *refname, struct object_id *oid, |
470be518 MH |
1516 | struct strbuf *referent, unsigned int *type) |
1517 | { | |
99afe91a | 1518 | return ref_store->be->read_raw_ref(ref_store, refname, oid, referent, type); |
470be518 MH |
1519 | } |
1520 | ||
2d0663b2 | 1521 | /* This function needs to return a meaningful errno on failure */ |
7d2df051 | 1522 | const char *refs_resolve_ref_unsafe(struct ref_store *refs, |
3c0cb0cb MH |
1523 | const char *refname, |
1524 | int resolve_flags, | |
49e61479 | 1525 | struct object_id *oid, int *flags) |
2d0663b2 DT |
1526 | { |
1527 | static struct strbuf sb_refname = STRBUF_INIT; | |
54fad661 | 1528 | struct object_id unused_oid; |
2d0663b2 DT |
1529 | int unused_flags; |
1530 | int symref_count; | |
1531 | ||
49e61479 | 1532 | if (!oid) |
1533 | oid = &unused_oid; | |
2d0663b2 DT |
1534 | if (!flags) |
1535 | flags = &unused_flags; | |
1536 | ||
1537 | *flags = 0; | |
1538 | ||
1539 | if (check_refname_format(refname, REFNAME_ALLOW_ONELEVEL)) { | |
1540 | if (!(resolve_flags & RESOLVE_REF_ALLOW_BAD_NAME) || | |
1541 | !refname_is_safe(refname)) { | |
1542 | errno = EINVAL; | |
1543 | return NULL; | |
1544 | } | |
1545 | ||
1546 | /* | |
1547 | * dwim_ref() uses REF_ISBROKEN to distinguish between | |
1548 | * missing refs and refs that were present but invalid, | |
1549 | * to complain about the latter to stderr. | |
1550 | * | |
1551 | * We don't know whether the ref exists, so don't set | |
1552 | * REF_ISBROKEN yet. | |
1553 | */ | |
1554 | *flags |= REF_BAD_NAME; | |
1555 | } | |
1556 | ||
1557 | for (symref_count = 0; symref_count < SYMREF_MAXDEPTH; symref_count++) { | |
1558 | unsigned int read_flags = 0; | |
1559 | ||
470be518 | 1560 | if (refs_read_raw_ref(refs, refname, |
99afe91a | 1561 | oid, &sb_refname, &read_flags)) { |
2d0663b2 | 1562 | *flags |= read_flags; |
a1c1d817 JK |
1563 | |
1564 | /* In reading mode, refs must eventually resolve */ | |
1565 | if (resolve_flags & RESOLVE_REF_READING) | |
1566 | return NULL; | |
1567 | ||
1568 | /* | |
1569 | * Otherwise a missing ref is OK. But the files backend | |
1570 | * may show errors besides ENOENT if there are | |
1571 | * similarly-named refs. | |
1572 | */ | |
1573 | if (errno != ENOENT && | |
1574 | errno != EISDIR && | |
1575 | errno != ENOTDIR) | |
2d0663b2 | 1576 | return NULL; |
a1c1d817 | 1577 | |
49e61479 | 1578 | oidclr(oid); |
2d0663b2 DT |
1579 | if (*flags & REF_BAD_NAME) |
1580 | *flags |= REF_ISBROKEN; | |
1581 | return refname; | |
1582 | } | |
1583 | ||
1584 | *flags |= read_flags; | |
1585 | ||
1586 | if (!(read_flags & REF_ISSYMREF)) { | |
1587 | if (*flags & REF_BAD_NAME) { | |
49e61479 | 1588 | oidclr(oid); |
2d0663b2 DT |
1589 | *flags |= REF_ISBROKEN; |
1590 | } | |
1591 | return refname; | |
1592 | } | |
1593 | ||
1594 | refname = sb_refname.buf; | |
1595 | if (resolve_flags & RESOLVE_REF_NO_RECURSE) { | |
49e61479 | 1596 | oidclr(oid); |
2d0663b2 DT |
1597 | return refname; |
1598 | } | |
1599 | if (check_refname_format(refname, REFNAME_ALLOW_ONELEVEL)) { | |
1600 | if (!(resolve_flags & RESOLVE_REF_ALLOW_BAD_NAME) || | |
1601 | !refname_is_safe(refname)) { | |
1602 | errno = EINVAL; | |
1603 | return NULL; | |
1604 | } | |
1605 | ||
1606 | *flags |= REF_ISBROKEN | REF_BAD_NAME; | |
1607 | } | |
1608 | } | |
1609 | ||
1610 | errno = ELOOP; | |
1611 | return NULL; | |
1612 | } | |
00eebe35 | 1613 | |
6fb5acfd DT |
1614 | /* backend functions */ |
1615 | int refs_init_db(struct strbuf *err) | |
1616 | { | |
23a3f0cb | 1617 | struct ref_store *refs = get_main_ref_store(the_repository); |
6fb5acfd DT |
1618 | |
1619 | return refs->be->init_db(refs, err); | |
1620 | } | |
1621 | ||
bd40dcda | 1622 | const char *resolve_ref_unsafe(const char *refname, int resolve_flags, |
49e61479 | 1623 | struct object_id *oid, int *flags) |
bd40dcda | 1624 | { |
23a3f0cb | 1625 | return refs_resolve_ref_unsafe(get_main_ref_store(the_repository), refname, |
49e61479 | 1626 | resolve_flags, oid, flags); |
bd40dcda MH |
1627 | } |
1628 | ||
a8355bb7 | 1629 | int resolve_gitlink_ref(const char *submodule, const char *refname, |
a98e6101 | 1630 | struct object_id *oid) |
424dcc76 | 1631 | { |
424dcc76 MH |
1632 | struct ref_store *refs; |
1633 | int flags; | |
1634 | ||
29babbee | 1635 | refs = get_submodule_ref_store(submodule); |
48a8475f | 1636 | |
424dcc76 MH |
1637 | if (!refs) |
1638 | return -1; | |
1639 | ||
49e61479 | 1640 | if (!refs_resolve_ref_unsafe(refs, refname, 0, oid, &flags) || |
a98e6101 | 1641 | is_null_oid(oid)) |
424dcc76 MH |
1642 | return -1; |
1643 | return 0; | |
1644 | } | |
1645 | ||
0c064d90 | 1646 | struct ref_store_hash_entry |
7d4558c4 MH |
1647 | { |
1648 | struct hashmap_entry ent; /* must be the first member! */ | |
1649 | ||
1650 | struct ref_store *refs; | |
1651 | ||
0c064d90 NTND |
1652 | /* NUL-terminated identifier of the ref store: */ |
1653 | char name[FLEX_ARRAY]; | |
7d4558c4 MH |
1654 | }; |
1655 | ||
7663cdc8 SB |
1656 | static int ref_store_hash_cmp(const void *unused_cmp_data, |
1657 | const void *entry, const void *entry_or_key, | |
7d4558c4 MH |
1658 | const void *keydata) |
1659 | { | |
0c064d90 NTND |
1660 | const struct ref_store_hash_entry *e1 = entry, *e2 = entry_or_key; |
1661 | const char *name = keydata ? keydata : e2->name; | |
7d4558c4 | 1662 | |
0c064d90 | 1663 | return strcmp(e1->name, name); |
7d4558c4 MH |
1664 | } |
1665 | ||
0c064d90 NTND |
1666 | static struct ref_store_hash_entry *alloc_ref_store_hash_entry( |
1667 | const char *name, struct ref_store *refs) | |
7d4558c4 | 1668 | { |
0c064d90 | 1669 | struct ref_store_hash_entry *entry; |
7d4558c4 | 1670 | |
0c064d90 NTND |
1671 | FLEX_ALLOC_STR(entry, name, name); |
1672 | hashmap_entry_init(entry, strhash(name)); | |
7d4558c4 MH |
1673 | entry->refs = refs; |
1674 | return entry; | |
1675 | } | |
1676 | ||
7d4558c4 MH |
1677 | /* A hashmap of ref_stores, stored by submodule name: */ |
1678 | static struct hashmap submodule_ref_stores; | |
00eebe35 | 1679 | |
17eff96b NTND |
1680 | /* A hashmap of ref_stores, stored by worktree id: */ |
1681 | static struct hashmap worktree_ref_stores; | |
1682 | ||
c468da4e | 1683 | /* |
0c064d90 NTND |
1684 | * Look up a ref store by name. If that ref_store hasn't been |
1685 | * registered yet, return NULL. | |
c468da4e | 1686 | */ |
0c064d90 NTND |
1687 | static struct ref_store *lookup_ref_store_map(struct hashmap *map, |
1688 | const char *name) | |
00eebe35 | 1689 | { |
0c064d90 | 1690 | struct ref_store_hash_entry *entry; |
00eebe35 | 1691 | |
0c064d90 | 1692 | if (!map->tablesize) |
7d4558c4 MH |
1693 | /* It's initialized on demand in register_ref_store(). */ |
1694 | return NULL; | |
620a66b9 | 1695 | |
0c064d90 | 1696 | entry = hashmap_get_from_hash(map, strhash(name), name); |
7d4558c4 | 1697 | return entry ? entry->refs : NULL; |
00eebe35 MH |
1698 | } |
1699 | ||
c468da4e MH |
1700 | /* |
1701 | * Create, record, and return a ref_store instance for the specified | |
5d0bc90e | 1702 | * gitdir. |
c468da4e | 1703 | */ |
9e7ec634 NTND |
1704 | static struct ref_store *ref_store_init(const char *gitdir, |
1705 | unsigned int flags) | |
00eebe35 MH |
1706 | { |
1707 | const char *be_name = "files"; | |
1708 | struct ref_storage_be *be = find_ref_storage_backend(be_name); | |
ba88add5 | 1709 | struct ref_store *refs; |
00eebe35 MH |
1710 | |
1711 | if (!be) | |
033abf97 | 1712 | BUG("reference backend %s is unknown", be_name); |
00eebe35 | 1713 | |
9e7ec634 | 1714 | refs = be->init(gitdir, flags); |
ba88add5 | 1715 | return refs; |
00eebe35 MH |
1716 | } |
1717 | ||
64a74161 | 1718 | struct ref_store *get_main_ref_store(struct repository *r) |
24c8407e | 1719 | { |
64a74161 SB |
1720 | if (r->refs) |
1721 | return r->refs; | |
24c8407e | 1722 | |
2dc417ab JK |
1723 | if (!r->gitdir) |
1724 | BUG("attempting to get main_ref_store outside of repository"); | |
1725 | ||
64a74161 SB |
1726 | r->refs = ref_store_init(r->gitdir, REF_STORE_ALL_CAPS); |
1727 | return r->refs; | |
378dc910 NTND |
1728 | } |
1729 | ||
1730 | /* | |
0c064d90 NTND |
1731 | * Associate a ref store with a name. It is a fatal error to call this |
1732 | * function twice for the same name. | |
378dc910 | 1733 | */ |
0c064d90 NTND |
1734 | static void register_ref_store_map(struct hashmap *map, |
1735 | const char *type, | |
1736 | struct ref_store *refs, | |
1737 | const char *name) | |
378dc910 | 1738 | { |
0c064d90 | 1739 | if (!map->tablesize) |
7663cdc8 | 1740 | hashmap_init(map, ref_store_hash_cmp, NULL, 0); |
378dc910 | 1741 | |
0c064d90 | 1742 | if (hashmap_put(map, alloc_ref_store_hash_entry(name, refs))) |
033abf97 | 1743 | BUG("%s ref_store '%s' initialized twice", type, name); |
24c8407e NTND |
1744 | } |
1745 | ||
18d0002d | 1746 | struct ref_store *get_submodule_ref_store(const char *submodule) |
00eebe35 | 1747 | { |
126c9e05 | 1748 | struct strbuf submodule_sb = STRBUF_INIT; |
00eebe35 | 1749 | struct ref_store *refs; |
29babbee NTND |
1750 | char *to_free = NULL; |
1751 | size_t len; | |
00eebe35 | 1752 | |
82a150f2 NTND |
1753 | if (!submodule) |
1754 | return NULL; | |
1755 | ||
873ea90d NTND |
1756 | len = strlen(submodule); |
1757 | while (len && is_dir_sep(submodule[len - 1])) | |
1758 | len--; | |
1759 | if (!len) | |
1760 | return NULL; | |
00eebe35 | 1761 | |
29babbee NTND |
1762 | if (submodule[len]) |
1763 | /* We need to strip off one or more trailing slashes */ | |
1764 | submodule = to_free = xmemdupz(submodule, len); | |
00eebe35 | 1765 | |
0c064d90 | 1766 | refs = lookup_ref_store_map(&submodule_ref_stores, submodule); |
126c9e05 | 1767 | if (refs) |
2c616c17 | 1768 | goto done; |
00eebe35 | 1769 | |
126c9e05 | 1770 | strbuf_addstr(&submodule_sb, submodule); |
2c616c17 NTND |
1771 | if (!is_nonbare_repository_dir(&submodule_sb)) |
1772 | goto done; | |
00eebe35 | 1773 | |
2c616c17 NTND |
1774 | if (submodule_to_gitdir(&submodule_sb, submodule)) |
1775 | goto done; | |
00eebe35 | 1776 | |
9e7ec634 NTND |
1777 | /* assume that add_submodule_odb() has been called */ |
1778 | refs = ref_store_init(submodule_sb.buf, | |
1779 | REF_STORE_READ | REF_STORE_ODB); | |
0c064d90 NTND |
1780 | register_ref_store_map(&submodule_ref_stores, "submodule", |
1781 | refs, submodule); | |
5d0bc90e | 1782 | |
2c616c17 | 1783 | done: |
5d0bc90e | 1784 | strbuf_release(&submodule_sb); |
29babbee NTND |
1785 | free(to_free); |
1786 | ||
00eebe35 MH |
1787 | return refs; |
1788 | } | |
1789 | ||
17eff96b NTND |
1790 | struct ref_store *get_worktree_ref_store(const struct worktree *wt) |
1791 | { | |
1792 | struct ref_store *refs; | |
1793 | const char *id; | |
1794 | ||
1795 | if (wt->is_current) | |
23a3f0cb | 1796 | return get_main_ref_store(the_repository); |
17eff96b NTND |
1797 | |
1798 | id = wt->id ? wt->id : "/"; | |
1799 | refs = lookup_ref_store_map(&worktree_ref_stores, id); | |
1800 | if (refs) | |
1801 | return refs; | |
1802 | ||
1803 | if (wt->id) | |
1804 | refs = ref_store_init(git_common_path("worktrees/%s", wt->id), | |
1805 | REF_STORE_ALL_CAPS); | |
1806 | else | |
1807 | refs = ref_store_init(get_git_common_dir(), | |
1808 | REF_STORE_ALL_CAPS); | |
1809 | ||
1810 | if (refs) | |
1811 | register_ref_store_map(&worktree_ref_stores, "worktree", | |
1812 | refs, id); | |
1813 | return refs; | |
1814 | } | |
1815 | ||
620a66b9 | 1816 | void base_ref_store_init(struct ref_store *refs, |
fbfd0a29 | 1817 | const struct ref_storage_be *be) |
00eebe35 | 1818 | { |
620a66b9 | 1819 | refs->be = be; |
00eebe35 | 1820 | } |
127b42a1 RS |
1821 | |
1822 | /* backend functions */ | |
7d2df051 | 1823 | int refs_pack_refs(struct ref_store *refs, unsigned int flags) |
8231527e | 1824 | { |
8231527e MH |
1825 | return refs->be->pack_refs(refs, flags); |
1826 | } | |
1827 | ||
7d2df051 | 1828 | int refs_peel_ref(struct ref_store *refs, const char *refname, |
b420d909 | 1829 | struct object_id *oid) |
7d2df051 | 1830 | { |
ba1c052f | 1831 | int flag; |
34c290a6 | 1832 | struct object_id base; |
ba1c052f MH |
1833 | |
1834 | if (current_ref_iter && current_ref_iter->refname == refname) { | |
1835 | struct object_id peeled; | |
1836 | ||
1837 | if (ref_iterator_peel(current_ref_iter, &peeled)) | |
1838 | return -1; | |
b420d909 | 1839 | oidcpy(oid, &peeled); |
ba1c052f MH |
1840 | return 0; |
1841 | } | |
1842 | ||
1843 | if (refs_read_ref_full(refs, refname, | |
34c290a6 | 1844 | RESOLVE_REF_READING, &base, &flag)) |
ba1c052f MH |
1845 | return -1; |
1846 | ||
ac2ed0d7 | 1847 | return peel_object(&base, oid); |
8231527e MH |
1848 | } |
1849 | ||
b420d909 | 1850 | int peel_ref(const char *refname, struct object_id *oid) |
bd427cf2 | 1851 | { |
23a3f0cb | 1852 | return refs_peel_ref(get_main_ref_store(the_repository), refname, oid); |
7d2df051 | 1853 | } |
bd427cf2 | 1854 | |
7d2df051 NTND |
1855 | int refs_create_symref(struct ref_store *refs, |
1856 | const char *ref_target, | |
1857 | const char *refs_heads_master, | |
1858 | const char *logmsg) | |
1859 | { | |
1860 | return refs->be->create_symref(refs, ref_target, | |
1861 | refs_heads_master, | |
1862 | logmsg); | |
bd427cf2 MH |
1863 | } |
1864 | ||
284689ba MH |
1865 | int create_symref(const char *ref_target, const char *refs_heads_master, |
1866 | const char *logmsg) | |
1867 | { | |
23a3f0cb | 1868 | return refs_create_symref(get_main_ref_store(the_repository), ref_target, |
7d2df051 | 1869 | refs_heads_master, logmsg); |
284689ba MH |
1870 | } |
1871 | ||
2ced105c MH |
1872 | int ref_update_reject_duplicates(struct string_list *refnames, |
1873 | struct strbuf *err) | |
1874 | { | |
a552e50e | 1875 | size_t i, n = refnames->nr; |
2ced105c MH |
1876 | |
1877 | assert(err); | |
1878 | ||
8556f8d6 MH |
1879 | for (i = 1; i < n; i++) { |
1880 | int cmp = strcmp(refnames->items[i - 1].string, | |
1881 | refnames->items[i].string); | |
1882 | ||
1883 | if (!cmp) { | |
2ced105c | 1884 | strbuf_addf(err, |
661558f0 | 1885 | _("multiple updates for ref '%s' not allowed"), |
2ced105c MH |
1886 | refnames->items[i].string); |
1887 | return 1; | |
8556f8d6 | 1888 | } else if (cmp > 0) { |
033abf97 | 1889 | BUG("ref_update_reject_duplicates() received unsorted list"); |
2ced105c | 1890 | } |
8556f8d6 | 1891 | } |
2ced105c MH |
1892 | return 0; |
1893 | } | |
1894 | ||
30173b88 MH |
1895 | int ref_transaction_prepare(struct ref_transaction *transaction, |
1896 | struct strbuf *err) | |
127b42a1 | 1897 | { |
c0fe4e8b | 1898 | struct ref_store *refs = transaction->ref_store; |
127b42a1 | 1899 | |
8d4240d3 MH |
1900 | switch (transaction->state) { |
1901 | case REF_TRANSACTION_OPEN: | |
1902 | /* Good. */ | |
1903 | break; | |
30173b88 | 1904 | case REF_TRANSACTION_PREPARED: |
033abf97 | 1905 | BUG("prepare called twice on reference transaction"); |
30173b88 | 1906 | break; |
8d4240d3 | 1907 | case REF_TRANSACTION_CLOSED: |
033abf97 | 1908 | BUG("prepare called on a closed reference transaction"); |
8d4240d3 MH |
1909 | break; |
1910 | default: | |
033abf97 | 1911 | BUG("unexpected reference transaction state"); |
8d4240d3 MH |
1912 | break; |
1913 | } | |
1914 | ||
d8f4481c JK |
1915 | if (getenv(GIT_QUARANTINE_ENVIRONMENT)) { |
1916 | strbuf_addstr(err, | |
1917 | _("ref updates forbidden inside quarantine environment")); | |
1918 | return -1; | |
1919 | } | |
1920 | ||
30173b88 MH |
1921 | return refs->be->transaction_prepare(refs, transaction, err); |
1922 | } | |
1923 | ||
1924 | int ref_transaction_abort(struct ref_transaction *transaction, | |
1925 | struct strbuf *err) | |
1926 | { | |
1927 | struct ref_store *refs = transaction->ref_store; | |
1928 | int ret = 0; | |
1929 | ||
1930 | switch (transaction->state) { | |
1931 | case REF_TRANSACTION_OPEN: | |
1932 | /* No need to abort explicitly. */ | |
1933 | break; | |
1934 | case REF_TRANSACTION_PREPARED: | |
1935 | ret = refs->be->transaction_abort(refs, transaction, err); | |
1936 | break; | |
1937 | case REF_TRANSACTION_CLOSED: | |
033abf97 | 1938 | BUG("abort called on a closed reference transaction"); |
30173b88 MH |
1939 | break; |
1940 | default: | |
033abf97 | 1941 | BUG("unexpected reference transaction state"); |
30173b88 MH |
1942 | break; |
1943 | } | |
1944 | ||
1945 | ref_transaction_free(transaction); | |
1946 | return ret; | |
1947 | } | |
1948 | ||
1949 | int ref_transaction_commit(struct ref_transaction *transaction, | |
1950 | struct strbuf *err) | |
1951 | { | |
1952 | struct ref_store *refs = transaction->ref_store; | |
1953 | int ret; | |
1954 | ||
1955 | switch (transaction->state) { | |
1956 | case REF_TRANSACTION_OPEN: | |
1957 | /* Need to prepare first. */ | |
1958 | ret = ref_transaction_prepare(transaction, err); | |
1959 | if (ret) | |
1960 | return ret; | |
1961 | break; | |
1962 | case REF_TRANSACTION_PREPARED: | |
1963 | /* Fall through to finish. */ | |
1964 | break; | |
1965 | case REF_TRANSACTION_CLOSED: | |
033abf97 | 1966 | BUG("commit called on a closed reference transaction"); |
30173b88 MH |
1967 | break; |
1968 | default: | |
033abf97 | 1969 | BUG("unexpected reference transaction state"); |
30173b88 MH |
1970 | break; |
1971 | } | |
1972 | ||
1973 | return refs->be->transaction_finish(refs, transaction, err); | |
127b42a1 | 1974 | } |
62665823 | 1975 | |
7d2df051 NTND |
1976 | int refs_verify_refname_available(struct ref_store *refs, |
1977 | const char *refname, | |
b05855b5 | 1978 | const struct string_list *extras, |
7d2df051 NTND |
1979 | const struct string_list *skip, |
1980 | struct strbuf *err) | |
62665823 | 1981 | { |
b05855b5 MH |
1982 | const char *slash; |
1983 | const char *extra_refname; | |
1984 | struct strbuf dirname = STRBUF_INIT; | |
1985 | struct strbuf referent = STRBUF_INIT; | |
1986 | struct object_id oid; | |
1987 | unsigned int type; | |
1988 | struct ref_iterator *iter; | |
1989 | int ok; | |
1990 | int ret = -1; | |
1991 | ||
1992 | /* | |
1993 | * For the sake of comments in this function, suppose that | |
1994 | * refname is "refs/foo/bar". | |
1995 | */ | |
1996 | ||
1997 | assert(err); | |
1998 | ||
1999 | strbuf_grow(&dirname, strlen(refname) + 1); | |
2000 | for (slash = strchr(refname, '/'); slash; slash = strchr(slash + 1, '/')) { | |
2001 | /* Expand dirname to the new prefix, not including the trailing slash: */ | |
2002 | strbuf_add(&dirname, refname + dirname.len, slash - refname - dirname.len); | |
2003 | ||
2004 | /* | |
2005 | * We are still at a leading dir of the refname (e.g., | |
2006 | * "refs/foo"; if there is a reference with that name, | |
2007 | * it is a conflict, *unless* it is in skip. | |
2008 | */ | |
2009 | if (skip && string_list_has_string(skip, dirname.buf)) | |
2010 | continue; | |
2011 | ||
99afe91a | 2012 | if (!refs_read_raw_ref(refs, dirname.buf, &oid, &referent, &type)) { |
661558f0 | 2013 | strbuf_addf(err, _("'%s' exists; cannot create '%s'"), |
b05855b5 MH |
2014 | dirname.buf, refname); |
2015 | goto cleanup; | |
2016 | } | |
2017 | ||
2018 | if (extras && string_list_has_string(extras, dirname.buf)) { | |
661558f0 | 2019 | strbuf_addf(err, _("cannot process '%s' and '%s' at the same time"), |
b05855b5 MH |
2020 | refname, dirname.buf); |
2021 | goto cleanup; | |
2022 | } | |
2023 | } | |
2024 | ||
2025 | /* | |
2026 | * We are at the leaf of our refname (e.g., "refs/foo/bar"). | |
2027 | * There is no point in searching for a reference with that | |
2028 | * name, because a refname isn't considered to conflict with | |
2029 | * itself. But we still need to check for references whose | |
2030 | * names are in the "refs/foo/bar/" namespace, because they | |
2031 | * *do* conflict. | |
2032 | */ | |
2033 | strbuf_addstr(&dirname, refname + dirname.len); | |
2034 | strbuf_addch(&dirname, '/'); | |
2035 | ||
2036 | iter = refs_ref_iterator_begin(refs, dirname.buf, 0, | |
2037 | DO_FOR_EACH_INCLUDE_BROKEN); | |
2038 | while ((ok = ref_iterator_advance(iter)) == ITER_OK) { | |
2039 | if (skip && | |
2040 | string_list_has_string(skip, iter->refname)) | |
2041 | continue; | |
2042 | ||
661558f0 | 2043 | strbuf_addf(err, _("'%s' exists; cannot create '%s'"), |
b05855b5 MH |
2044 | iter->refname, refname); |
2045 | ref_iterator_abort(iter); | |
2046 | goto cleanup; | |
2047 | } | |
2048 | ||
2049 | if (ok != ITER_DONE) | |
033abf97 | 2050 | BUG("error while iterating over references"); |
b05855b5 MH |
2051 | |
2052 | extra_refname = find_descendant_ref(dirname.buf, extras, skip); | |
2053 | if (extra_refname) | |
661558f0 | 2054 | strbuf_addf(err, _("cannot process '%s' and '%s' at the same time"), |
b05855b5 MH |
2055 | refname, extra_refname); |
2056 | else | |
2057 | ret = 0; | |
2058 | ||
2059 | cleanup: | |
2060 | strbuf_release(&referent); | |
2061 | strbuf_release(&dirname); | |
2062 | return ret; | |
62665823 | 2063 | } |
e3688bd6 | 2064 | |
7d2df051 | 2065 | int refs_for_each_reflog(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
e3688bd6 | 2066 | { |
e3688bd6 | 2067 | struct ref_iterator *iter; |
4a6067cd | 2068 | struct do_for_each_ref_help hp = { fn, cb_data }; |
e3688bd6 DT |
2069 | |
2070 | iter = refs->be->reflog_iterator_begin(refs); | |
2071 | ||
4a6067cd SB |
2072 | return do_for_each_repo_ref_iterator(the_repository, iter, |
2073 | do_for_each_ref_helper, &hp); | |
e3688bd6 DT |
2074 | } |
2075 | ||
7d2df051 | 2076 | int for_each_reflog(each_ref_fn fn, void *cb_data) |
e3688bd6 | 2077 | { |
23a3f0cb | 2078 | return refs_for_each_reflog(get_main_ref_store(the_repository), fn, cb_data); |
7d2df051 | 2079 | } |
e3688bd6 | 2080 | |
7d2df051 NTND |
2081 | int refs_for_each_reflog_ent_reverse(struct ref_store *refs, |
2082 | const char *refname, | |
2083 | each_reflog_ent_fn fn, | |
2084 | void *cb_data) | |
2085 | { | |
e3688bd6 DT |
2086 | return refs->be->for_each_reflog_ent_reverse(refs, refname, |
2087 | fn, cb_data); | |
2088 | } | |
2089 | ||
7d2df051 NTND |
2090 | int for_each_reflog_ent_reverse(const char *refname, each_reflog_ent_fn fn, |
2091 | void *cb_data) | |
2092 | { | |
23a3f0cb | 2093 | return refs_for_each_reflog_ent_reverse(get_main_ref_store(the_repository), |
7d2df051 NTND |
2094 | refname, fn, cb_data); |
2095 | } | |
2096 | ||
2097 | int refs_for_each_reflog_ent(struct ref_store *refs, const char *refname, | |
2098 | each_reflog_ent_fn fn, void *cb_data) | |
2099 | { | |
2100 | return refs->be->for_each_reflog_ent(refs, refname, fn, cb_data); | |
2101 | } | |
2102 | ||
e3688bd6 DT |
2103 | int for_each_reflog_ent(const char *refname, each_reflog_ent_fn fn, |
2104 | void *cb_data) | |
2105 | { | |
23a3f0cb | 2106 | return refs_for_each_reflog_ent(get_main_ref_store(the_repository), refname, |
7d2df051 NTND |
2107 | fn, cb_data); |
2108 | } | |
e3688bd6 | 2109 | |
7d2df051 NTND |
2110 | int refs_reflog_exists(struct ref_store *refs, const char *refname) |
2111 | { | |
2112 | return refs->be->reflog_exists(refs, refname); | |
e3688bd6 DT |
2113 | } |
2114 | ||
2115 | int reflog_exists(const char *refname) | |
2116 | { | |
23a3f0cb | 2117 | return refs_reflog_exists(get_main_ref_store(the_repository), refname); |
7d2df051 | 2118 | } |
e3688bd6 | 2119 | |
7d2df051 NTND |
2120 | int refs_create_reflog(struct ref_store *refs, const char *refname, |
2121 | int force_create, struct strbuf *err) | |
2122 | { | |
2123 | return refs->be->create_reflog(refs, refname, force_create, err); | |
e3688bd6 DT |
2124 | } |
2125 | ||
2126 | int safe_create_reflog(const char *refname, int force_create, | |
2127 | struct strbuf *err) | |
2128 | { | |
23a3f0cb | 2129 | return refs_create_reflog(get_main_ref_store(the_repository), refname, |
7d2df051 NTND |
2130 | force_create, err); |
2131 | } | |
e3688bd6 | 2132 | |
7d2df051 NTND |
2133 | int refs_delete_reflog(struct ref_store *refs, const char *refname) |
2134 | { | |
2135 | return refs->be->delete_reflog(refs, refname); | |
e3688bd6 DT |
2136 | } |
2137 | ||
2138 | int delete_reflog(const char *refname) | |
2139 | { | |
23a3f0cb | 2140 | return refs_delete_reflog(get_main_ref_store(the_repository), refname); |
7d2df051 | 2141 | } |
e3688bd6 | 2142 | |
7d2df051 | 2143 | int refs_reflog_expire(struct ref_store *refs, |
0155f710 | 2144 | const char *refname, const struct object_id *oid, |
7d2df051 NTND |
2145 | unsigned int flags, |
2146 | reflog_expiry_prepare_fn prepare_fn, | |
2147 | reflog_expiry_should_prune_fn should_prune_fn, | |
2148 | reflog_expiry_cleanup_fn cleanup_fn, | |
2149 | void *policy_cb_data) | |
2150 | { | |
0155f710 | 2151 | return refs->be->reflog_expire(refs, refname, oid, flags, |
7d2df051 NTND |
2152 | prepare_fn, should_prune_fn, |
2153 | cleanup_fn, policy_cb_data); | |
e3688bd6 DT |
2154 | } |
2155 | ||
0155f710 | 2156 | int reflog_expire(const char *refname, const struct object_id *oid, |
e3688bd6 DT |
2157 | unsigned int flags, |
2158 | reflog_expiry_prepare_fn prepare_fn, | |
2159 | reflog_expiry_should_prune_fn should_prune_fn, | |
2160 | reflog_expiry_cleanup_fn cleanup_fn, | |
2161 | void *policy_cb_data) | |
2162 | { | |
23a3f0cb | 2163 | return refs_reflog_expire(get_main_ref_store(the_repository), |
0155f710 | 2164 | refname, oid, flags, |
7d2df051 NTND |
2165 | prepare_fn, should_prune_fn, |
2166 | cleanup_fn, policy_cb_data); | |
e3688bd6 | 2167 | } |
fc681463 DT |
2168 | |
2169 | int initial_ref_transaction_commit(struct ref_transaction *transaction, | |
2170 | struct strbuf *err) | |
2171 | { | |
c0fe4e8b | 2172 | struct ref_store *refs = transaction->ref_store; |
fc681463 DT |
2173 | |
2174 | return refs->be->initial_transaction_commit(refs, transaction, err); | |
2175 | } | |
a27dcf89 | 2176 | |
64da4199 MH |
2177 | int refs_delete_refs(struct ref_store *refs, const char *msg, |
2178 | struct string_list *refnames, unsigned int flags) | |
a27dcf89 | 2179 | { |
64da4199 | 2180 | return refs->be->delete_refs(refs, msg, refnames, flags); |
a27dcf89 | 2181 | } |
9b6b40d9 | 2182 | |
64da4199 MH |
2183 | int delete_refs(const char *msg, struct string_list *refnames, |
2184 | unsigned int flags) | |
9b6b40d9 | 2185 | { |
23a3f0cb | 2186 | return refs_delete_refs(get_main_ref_store(the_repository), msg, refnames, flags); |
7d2df051 | 2187 | } |
9b6b40d9 | 2188 | |
7d2df051 NTND |
2189 | int refs_rename_ref(struct ref_store *refs, const char *oldref, |
2190 | const char *newref, const char *logmsg) | |
2191 | { | |
9b6b40d9 DT |
2192 | return refs->be->rename_ref(refs, oldref, newref, logmsg); |
2193 | } | |
7d2df051 NTND |
2194 | |
2195 | int rename_ref(const char *oldref, const char *newref, const char *logmsg) | |
2196 | { | |
23a3f0cb | 2197 | return refs_rename_ref(get_main_ref_store(the_repository), oldref, newref, logmsg); |
7d2df051 | 2198 | } |
52d59cc6 SD |
2199 | |
2200 | int refs_copy_existing_ref(struct ref_store *refs, const char *oldref, | |
2201 | const char *newref, const char *logmsg) | |
2202 | { | |
2203 | return refs->be->copy_ref(refs, oldref, newref, logmsg); | |
2204 | } | |
2205 | ||
2206 | int copy_existing_ref(const char *oldref, const char *newref, const char *logmsg) | |
2207 | { | |
23a3f0cb | 2208 | return refs_copy_existing_ref(get_main_ref_store(the_repository), oldref, newref, logmsg); |
52d59cc6 | 2209 | } |