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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" |
3581d793 | 16 | |
3dce444f RS |
17 | /* |
18 | * List of all available backends | |
19 | */ | |
20 | static struct ref_storage_be *refs_backends = &refs_be_files; | |
21 | ||
22 | static struct ref_storage_be *find_ref_storage_backend(const char *name) | |
23 | { | |
24 | struct ref_storage_be *be; | |
25 | for (be = refs_backends; be; be = be->next) | |
26 | if (!strcmp(be->name, name)) | |
27 | return be; | |
28 | return NULL; | |
29 | } | |
30 | ||
31 | int ref_storage_backend_exists(const char *name) | |
32 | { | |
33 | return find_ref_storage_backend(name) != NULL; | |
34 | } | |
35 | ||
bc5fd6d3 | 36 | /* |
dde8a902 DT |
37 | * How to handle various characters in refnames: |
38 | * 0: An acceptable character for refs | |
5e650228 JH |
39 | * 1: End-of-component |
40 | * 2: ., look for a preceding . to reject .. in refs | |
41 | * 3: {, look for a preceding @ to reject @{ in refs | |
53a8555e | 42 | * 4: A bad character: ASCII control characters, and |
cd377f45 JK |
43 | * ":", "?", "[", "\", "^", "~", SP, or TAB |
44 | * 5: *, reject unless REFNAME_REFSPEC_PATTERN is set | |
dde8a902 DT |
45 | */ |
46 | static unsigned char refname_disposition[256] = { | |
5e650228 JH |
47 | 1, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, |
48 | 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, | |
cd377f45 | 49 | 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5, 0, 0, 0, 2, 1, |
5e650228 | 50 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0, 0, 0, 4, |
dde8a902 | 51 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
5e650228 JH |
52 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 4, 0, 4, 0, |
53 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
54 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 4, 4 | |
dde8a902 DT |
55 | }; |
56 | ||
57 | /* | |
58 | * Try to read one refname component from the front of refname. | |
59 | * Return the length of the component found, or -1 if the component is | |
60 | * not legal. It is legal if it is something reasonable to have under | |
61 | * ".git/refs/"; We do not like it if: | |
bc5fd6d3 MH |
62 | * |
63 | * - any path component of it begins with ".", or | |
64 | * - it has double dots "..", or | |
53a8555e | 65 | * - it has ASCII control characters, or |
cd377f45 JK |
66 | * - it has ":", "?", "[", "\", "^", "~", SP, or TAB anywhere, or |
67 | * - it has "*" anywhere unless REFNAME_REFSPEC_PATTERN is set, or | |
53a8555e JK |
68 | * - it ends with a "/", or |
69 | * - it ends with ".lock", or | |
70 | * - it contains a "@{" portion | |
bc5fd6d3 | 71 | */ |
cd377f45 | 72 | static int check_refname_component(const char *refname, int *flags) |
bc5fd6d3 MH |
73 | { |
74 | const char *cp; | |
75 | char last = '\0'; | |
76 | ||
77 | for (cp = refname; ; cp++) { | |
dde8a902 DT |
78 | int ch = *cp & 255; |
79 | unsigned char disp = refname_disposition[ch]; | |
80 | switch (disp) { | |
5e650228 | 81 | case 1: |
dde8a902 | 82 | goto out; |
5e650228 | 83 | case 2: |
dde8a902 DT |
84 | if (last == '.') |
85 | return -1; /* Refname contains "..". */ | |
86 | break; | |
5e650228 | 87 | case 3: |
dde8a902 DT |
88 | if (last == '@') |
89 | return -1; /* Refname contains "@{". */ | |
bc5fd6d3 | 90 | break; |
5e650228 | 91 | case 4: |
dde8a902 | 92 | return -1; |
cd377f45 JK |
93 | case 5: |
94 | if (!(*flags & REFNAME_REFSPEC_PATTERN)) | |
95 | return -1; /* refspec can't be a pattern */ | |
96 | ||
97 | /* | |
98 | * Unset the pattern flag so that we only accept | |
99 | * a single asterisk for one side of refspec. | |
100 | */ | |
101 | *flags &= ~ REFNAME_REFSPEC_PATTERN; | |
102 | break; | |
dde8a902 | 103 | } |
bc5fd6d3 MH |
104 | last = ch; |
105 | } | |
dde8a902 | 106 | out: |
bc5fd6d3 | 107 | if (cp == refname) |
dac529e4 | 108 | return 0; /* Component has zero length. */ |
f3cc52d8 JN |
109 | if (refname[0] == '.') |
110 | return -1; /* Component starts with '.'. */ | |
7108ad23 MH |
111 | if (cp - refname >= LOCK_SUFFIX_LEN && |
112 | !memcmp(cp - LOCK_SUFFIX_LEN, LOCK_SUFFIX, LOCK_SUFFIX_LEN)) | |
bc5fd6d3 MH |
113 | return -1; /* Refname ends with ".lock". */ |
114 | return cp - refname; | |
115 | } | |
116 | ||
5e650228 | 117 | int check_refname_format(const char *refname, int flags) |
bc5fd6d3 MH |
118 | { |
119 | int component_len, component_count = 0; | |
120 | ||
9ba89f48 FC |
121 | if (!strcmp(refname, "@")) |
122 | /* Refname is a single character '@'. */ | |
123 | return -1; | |
124 | ||
bc5fd6d3 MH |
125 | while (1) { |
126 | /* We are at the start of a path component. */ | |
cd377f45 JK |
127 | component_len = check_refname_component(refname, &flags); |
128 | if (component_len <= 0) | |
129 | return -1; | |
130 | ||
bc5fd6d3 MH |
131 | component_count++; |
132 | if (refname[component_len] == '\0') | |
133 | break; | |
134 | /* Skip to next component. */ | |
135 | refname += component_len + 1; | |
136 | } | |
137 | ||
138 | if (refname[component_len - 1] == '.') | |
139 | return -1; /* Refname ends with '.'. */ | |
140 | if (!(flags & REFNAME_ALLOW_ONELEVEL) && component_count < 2) | |
141 | return -1; /* Refname has only one component. */ | |
142 | return 0; | |
143 | } | |
144 | ||
4cb77009 | 145 | int refname_is_safe(const char *refname) |
d0f810f0 | 146 | { |
39950fef MH |
147 | const char *rest; |
148 | ||
149 | if (skip_prefix(refname, "refs/", &rest)) { | |
d0f810f0 RS |
150 | char *buf; |
151 | int result; | |
e40f3557 MH |
152 | size_t restlen = strlen(rest); |
153 | ||
154 | /* rest must not be empty, or start or end with "/" */ | |
155 | if (!restlen || *rest == '/' || rest[restlen - 1] == '/') | |
156 | return 0; | |
d0f810f0 | 157 | |
d0f810f0 RS |
158 | /* |
159 | * Does the refname try to escape refs/? | |
160 | * For example: refs/foo/../bar is safe but refs/foo/../../bar | |
161 | * is not. | |
162 | */ | |
e40f3557 MH |
163 | buf = xmallocz(restlen); |
164 | result = !normalize_path_copy(buf, rest) && !strcmp(buf, rest); | |
d0f810f0 RS |
165 | free(buf); |
166 | return result; | |
167 | } | |
35db25c6 MH |
168 | |
169 | do { | |
d0f810f0 RS |
170 | if (!isupper(*refname) && *refname != '_') |
171 | return 0; | |
172 | refname++; | |
35db25c6 | 173 | } while (*refname); |
d0f810f0 RS |
174 | return 1; |
175 | } | |
176 | ||
67be7c5a MH |
177 | /* |
178 | * Return true if refname, which has the specified oid and flags, can | |
179 | * be resolved to an object in the database. If the referred-to object | |
180 | * does not exist, emit a warning and return false. | |
181 | */ | |
182 | int ref_resolves_to_object(const char *refname, | |
183 | const struct object_id *oid, | |
184 | unsigned int flags) | |
185 | { | |
186 | if (flags & REF_ISBROKEN) | |
187 | return 0; | |
188 | if (!has_sha1_file(oid->hash)) { | |
189 | error("%s does not point to a valid object!", refname); | |
190 | return 0; | |
191 | } | |
192 | return 1; | |
193 | } | |
194 | ||
7d2df051 NTND |
195 | char *refs_resolve_refdup(struct ref_store *refs, |
196 | const char *refname, int resolve_flags, | |
197 | unsigned char *sha1, int *flags) | |
198 | { | |
199 | const char *result; | |
200 | ||
201 | result = refs_resolve_ref_unsafe(refs, refname, resolve_flags, | |
202 | sha1, flags); | |
203 | return xstrdup_or_null(result); | |
204 | } | |
205 | ||
7bd9bcf3 MH |
206 | char *resolve_refdup(const char *refname, int resolve_flags, |
207 | unsigned char *sha1, int *flags) | |
e1e22e37 | 208 | { |
7d2df051 NTND |
209 | return refs_resolve_refdup(get_main_ref_store(), |
210 | refname, resolve_flags, | |
211 | sha1, flags); | |
cddc4258 MH |
212 | } |
213 | ||
7bd9bcf3 MH |
214 | /* The argument to filter_refs */ |
215 | struct ref_filter { | |
216 | const char *pattern; | |
217 | each_ref_fn *fn; | |
218 | void *cb_data; | |
219 | }; | |
432ad41e | 220 | |
7d2df051 NTND |
221 | int refs_read_ref_full(struct ref_store *refs, const char *refname, |
222 | int resolve_flags, unsigned char *sha1, int *flags) | |
732134ed | 223 | { |
7d2df051 | 224 | if (refs_resolve_ref_unsafe(refs, refname, resolve_flags, sha1, flags)) |
7bd9bcf3 MH |
225 | return 0; |
226 | return -1; | |
732134ed MH |
227 | } |
228 | ||
7d2df051 NTND |
229 | int read_ref_full(const char *refname, int resolve_flags, unsigned char *sha1, int *flags) |
230 | { | |
231 | return refs_read_ref_full(get_main_ref_store(), refname, | |
232 | resolve_flags, sha1, flags); | |
233 | } | |
234 | ||
7bd9bcf3 | 235 | int read_ref(const char *refname, unsigned char *sha1) |
cddc4258 | 236 | { |
7bd9bcf3 | 237 | return read_ref_full(refname, RESOLVE_REF_READING, sha1, NULL); |
c774aab9 JP |
238 | } |
239 | ||
7bd9bcf3 | 240 | int ref_exists(const char *refname) |
bc5fd6d3 | 241 | { |
744c040b | 242 | return !!resolve_ref_unsafe(refname, RESOLVE_REF_READING, NULL, NULL); |
bc5fd6d3 MH |
243 | } |
244 | ||
7bd9bcf3 MH |
245 | static int filter_refs(const char *refname, const struct object_id *oid, |
246 | int flags, void *data) | |
432ad41e | 247 | { |
7bd9bcf3 MH |
248 | struct ref_filter *filter = (struct ref_filter *)data; |
249 | ||
55d34269 | 250 | if (wildmatch(filter->pattern, refname, 0)) |
7bd9bcf3 MH |
251 | return 0; |
252 | return filter->fn(refname, oid, flags, filter->cb_data); | |
432ad41e MH |
253 | } |
254 | ||
7bd9bcf3 | 255 | enum peel_status peel_object(const unsigned char *name, unsigned char *sha1) |
c774aab9 | 256 | { |
7bd9bcf3 | 257 | struct object *o = lookup_unknown_object(name); |
c774aab9 | 258 | |
7bd9bcf3 MH |
259 | if (o->type == OBJ_NONE) { |
260 | int type = sha1_object_info(name, NULL); | |
261 | if (type < 0 || !object_as_type(o, type, 0)) | |
262 | return PEEL_INVALID; | |
263 | } | |
bc5fd6d3 | 264 | |
7bd9bcf3 MH |
265 | if (o->type != OBJ_TAG) |
266 | return PEEL_NON_TAG; | |
e1980c9d | 267 | |
7bd9bcf3 MH |
268 | o = deref_tag_noverify(o); |
269 | if (!o) | |
270 | return PEEL_INVALID; | |
271 | ||
844a9ce4 | 272 | hashcpy(sha1, o->oid.hash); |
7bd9bcf3 | 273 | return PEEL_PEELED; |
e1980c9d JH |
274 | } |
275 | ||
7bd9bcf3 MH |
276 | struct warn_if_dangling_data { |
277 | FILE *fp; | |
278 | const char *refname; | |
279 | const struct string_list *refnames; | |
280 | const char *msg_fmt; | |
281 | }; | |
bc5fd6d3 | 282 | |
7bd9bcf3 MH |
283 | static int warn_if_dangling_symref(const char *refname, const struct object_id *oid, |
284 | int flags, void *cb_data) | |
285 | { | |
286 | struct warn_if_dangling_data *d = cb_data; | |
287 | const char *resolves_to; | |
bc5fd6d3 | 288 | |
7bd9bcf3 MH |
289 | if (!(flags & REF_ISSYMREF)) |
290 | return 0; | |
bc5fd6d3 | 291 | |
744c040b | 292 | resolves_to = resolve_ref_unsafe(refname, 0, NULL, NULL); |
7bd9bcf3 MH |
293 | if (!resolves_to |
294 | || (d->refname | |
295 | ? strcmp(resolves_to, d->refname) | |
296 | : !string_list_has_string(d->refnames, resolves_to))) { | |
297 | return 0; | |
298 | } | |
bc5fd6d3 | 299 | |
7bd9bcf3 MH |
300 | fprintf(d->fp, d->msg_fmt, refname); |
301 | fputc('\n', d->fp); | |
302 | return 0; | |
bc5fd6d3 MH |
303 | } |
304 | ||
7bd9bcf3 | 305 | void warn_dangling_symref(FILE *fp, const char *msg_fmt, const char *refname) |
f348ac92 | 306 | { |
7bd9bcf3 MH |
307 | struct warn_if_dangling_data data; |
308 | ||
309 | data.fp = fp; | |
310 | data.refname = refname; | |
311 | data.refnames = NULL; | |
312 | data.msg_fmt = msg_fmt; | |
313 | for_each_rawref(warn_if_dangling_symref, &data); | |
f348ac92 MH |
314 | } |
315 | ||
7bd9bcf3 | 316 | void warn_dangling_symrefs(FILE *fp, const char *msg_fmt, const struct string_list *refnames) |
432ad41e | 317 | { |
7bd9bcf3 | 318 | struct warn_if_dangling_data data; |
432ad41e | 319 | |
7bd9bcf3 MH |
320 | data.fp = fp; |
321 | data.refname = NULL; | |
322 | data.refnames = refnames; | |
323 | data.msg_fmt = msg_fmt; | |
324 | for_each_rawref(warn_if_dangling_symref, &data); | |
432ad41e MH |
325 | } |
326 | ||
7d2df051 NTND |
327 | int refs_for_each_tag_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
328 | { | |
329 | return refs_for_each_ref_in(refs, "refs/tags/", fn, cb_data); | |
330 | } | |
331 | ||
7bd9bcf3 | 332 | int for_each_tag_ref(each_ref_fn fn, void *cb_data) |
432ad41e | 333 | { |
7d2df051 | 334 | return refs_for_each_tag_ref(get_main_ref_store(), fn, cb_data); |
432ad41e MH |
335 | } |
336 | ||
7d2df051 NTND |
337 | int refs_for_each_branch_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
338 | { | |
339 | return refs_for_each_ref_in(refs, "refs/heads/", fn, cb_data); | |
432ad41e MH |
340 | } |
341 | ||
7bd9bcf3 | 342 | int for_each_branch_ref(each_ref_fn fn, void *cb_data) |
432ad41e | 343 | { |
7d2df051 | 344 | return refs_for_each_branch_ref(get_main_ref_store(), fn, cb_data); |
432ad41e MH |
345 | } |
346 | ||
7d2df051 NTND |
347 | int refs_for_each_remote_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
348 | { | |
349 | return refs_for_each_ref_in(refs, "refs/remotes/", fn, cb_data); | |
202a56a9 | 350 | } |
432ad41e | 351 | |
7bd9bcf3 | 352 | int for_each_remote_ref(each_ref_fn fn, void *cb_data) |
e9c4c111 | 353 | { |
7d2df051 | 354 | return refs_for_each_remote_ref(get_main_ref_store(), fn, cb_data); |
202a56a9 MH |
355 | } |
356 | ||
7bd9bcf3 MH |
357 | int head_ref_namespaced(each_ref_fn fn, void *cb_data) |
358 | { | |
359 | struct strbuf buf = STRBUF_INIT; | |
360 | int ret = 0; | |
361 | struct object_id oid; | |
362 | int flag; | |
c774aab9 | 363 | |
7bd9bcf3 MH |
364 | strbuf_addf(&buf, "%sHEAD", get_git_namespace()); |
365 | if (!read_ref_full(buf.buf, RESOLVE_REF_READING, oid.hash, &flag)) | |
366 | ret = fn(buf.buf, &oid, flag, cb_data); | |
367 | strbuf_release(&buf); | |
c774aab9 | 368 | |
7bd9bcf3 | 369 | return ret; |
e9c4c111 | 370 | } |
c774aab9 | 371 | |
7bd9bcf3 MH |
372 | int for_each_glob_ref_in(each_ref_fn fn, const char *pattern, |
373 | const char *prefix, void *cb_data) | |
662428f4 | 374 | { |
7bd9bcf3 MH |
375 | struct strbuf real_pattern = STRBUF_INIT; |
376 | struct ref_filter filter; | |
377 | int ret; | |
d08bae7e | 378 | |
59556548 | 379 | if (!prefix && !starts_with(pattern, "refs/")) |
d08bae7e | 380 | strbuf_addstr(&real_pattern, "refs/"); |
b09fe971 IL |
381 | else if (prefix) |
382 | strbuf_addstr(&real_pattern, prefix); | |
d08bae7e IL |
383 | strbuf_addstr(&real_pattern, pattern); |
384 | ||
894a9d33 | 385 | if (!has_glob_specials(pattern)) { |
9517e6b8 | 386 | /* Append implied '/' '*' if not present. */ |
00b6c178 | 387 | strbuf_complete(&real_pattern, '/'); |
d08bae7e IL |
388 | /* No need to check for '*', there is none. */ |
389 | strbuf_addch(&real_pattern, '*'); | |
390 | } | |
391 | ||
392 | filter.pattern = real_pattern.buf; | |
393 | filter.fn = fn; | |
394 | filter.cb_data = cb_data; | |
395 | ret = for_each_ref(filter_refs, &filter); | |
396 | ||
397 | strbuf_release(&real_pattern); | |
398 | return ret; | |
399 | } | |
400 | ||
b09fe971 IL |
401 | int for_each_glob_ref(each_ref_fn fn, const char *pattern, void *cb_data) |
402 | { | |
403 | return for_each_glob_ref_in(fn, pattern, NULL, cb_data); | |
404 | } | |
405 | ||
4577e483 | 406 | const char *prettify_refname(const char *name) |
a9c37a72 | 407 | { |
3e5b36c6 SG |
408 | if (skip_prefix(name, "refs/heads/", &name) || |
409 | skip_prefix(name, "refs/tags/", &name) || | |
410 | skip_prefix(name, "refs/remotes/", &name)) | |
411 | ; /* nothing */ | |
412 | return name; | |
a9c37a72 DB |
413 | } |
414 | ||
54457fe5 | 415 | static const char *ref_rev_parse_rules[] = { |
79803322 SP |
416 | "%.*s", |
417 | "refs/%.*s", | |
418 | "refs/tags/%.*s", | |
419 | "refs/heads/%.*s", | |
420 | "refs/remotes/%.*s", | |
421 | "refs/remotes/%.*s/HEAD", | |
422 | NULL | |
423 | }; | |
424 | ||
54457fe5 | 425 | int refname_match(const char *abbrev_name, const char *full_name) |
79803322 SP |
426 | { |
427 | const char **p; | |
428 | const int abbrev_name_len = strlen(abbrev_name); | |
429 | ||
54457fe5 | 430 | for (p = ref_rev_parse_rules; *p; p++) { |
79803322 SP |
431 | if (!strcmp(full_name, mkpath(*p, abbrev_name_len, abbrev_name))) { |
432 | return 1; | |
433 | } | |
434 | } | |
435 | ||
436 | return 0; | |
437 | } | |
438 | ||
ff74f7f1 JH |
439 | /* |
440 | * *string and *len will only be substituted, and *string returned (for | |
441 | * later free()ing) if the string passed in is a magic short-hand form | |
442 | * to name a branch. | |
443 | */ | |
444 | static char *substitute_branch_name(const char **string, int *len) | |
445 | { | |
446 | struct strbuf buf = STRBUF_INIT; | |
0e9f62da | 447 | int ret = interpret_branch_name(*string, *len, &buf, 0); |
ff74f7f1 JH |
448 | |
449 | if (ret == *len) { | |
450 | size_t size; | |
451 | *string = strbuf_detach(&buf, &size); | |
452 | *len = size; | |
453 | return (char *)*string; | |
454 | } | |
455 | ||
456 | return NULL; | |
457 | } | |
458 | ||
459 | int dwim_ref(const char *str, int len, unsigned char *sha1, char **ref) | |
460 | { | |
461 | char *last_branch = substitute_branch_name(&str, &len); | |
41da7111 NTND |
462 | int refs_found = expand_ref(str, len, sha1, ref); |
463 | free(last_branch); | |
464 | return refs_found; | |
465 | } | |
466 | ||
467 | int expand_ref(const char *str, int len, unsigned char *sha1, char **ref) | |
468 | { | |
ff74f7f1 JH |
469 | const char **p, *r; |
470 | int refs_found = 0; | |
6cd4a898 | 471 | struct strbuf fullref = STRBUF_INIT; |
ff74f7f1 JH |
472 | |
473 | *ref = NULL; | |
474 | for (p = ref_rev_parse_rules; *p; p++) { | |
ff74f7f1 JH |
475 | unsigned char sha1_from_ref[20]; |
476 | unsigned char *this_result; | |
477 | int flag; | |
478 | ||
479 | this_result = refs_found ? sha1_from_ref : sha1; | |
6cd4a898 JK |
480 | strbuf_reset(&fullref); |
481 | strbuf_addf(&fullref, *p, len, str); | |
482 | r = resolve_ref_unsafe(fullref.buf, RESOLVE_REF_READING, | |
7695d118 | 483 | this_result, &flag); |
ff74f7f1 JH |
484 | if (r) { |
485 | if (!refs_found++) | |
486 | *ref = xstrdup(r); | |
487 | if (!warn_ambiguous_refs) | |
488 | break; | |
6cd4a898 JK |
489 | } else if ((flag & REF_ISSYMREF) && strcmp(fullref.buf, "HEAD")) { |
490 | warning("ignoring dangling symref %s.", fullref.buf); | |
491 | } else if ((flag & REF_ISBROKEN) && strchr(fullref.buf, '/')) { | |
492 | warning("ignoring broken ref %s.", fullref.buf); | |
55956350 | 493 | } |
ff74f7f1 | 494 | } |
6cd4a898 | 495 | strbuf_release(&fullref); |
ff74f7f1 JH |
496 | return refs_found; |
497 | } | |
498 | ||
499 | int dwim_log(const char *str, int len, unsigned char *sha1, char **log) | |
500 | { | |
501 | char *last_branch = substitute_branch_name(&str, &len); | |
502 | const char **p; | |
503 | int logs_found = 0; | |
6cd4a898 | 504 | struct strbuf path = STRBUF_INIT; |
ff74f7f1 JH |
505 | |
506 | *log = NULL; | |
507 | for (p = ref_rev_parse_rules; *p; p++) { | |
ff74f7f1 | 508 | unsigned char hash[20]; |
ff74f7f1 JH |
509 | const char *ref, *it; |
510 | ||
6cd4a898 JK |
511 | strbuf_reset(&path); |
512 | strbuf_addf(&path, *p, len, str); | |
513 | ref = resolve_ref_unsafe(path.buf, RESOLVE_REF_READING, | |
7695d118 | 514 | hash, NULL); |
ff74f7f1 JH |
515 | if (!ref) |
516 | continue; | |
6cd4a898 JK |
517 | if (reflog_exists(path.buf)) |
518 | it = path.buf; | |
519 | else if (strcmp(ref, path.buf) && reflog_exists(ref)) | |
ff74f7f1 JH |
520 | it = ref; |
521 | else | |
522 | continue; | |
523 | if (!logs_found++) { | |
524 | *log = xstrdup(it); | |
525 | hashcpy(sha1, hash); | |
526 | } | |
7bd9bcf3 MH |
527 | if (!warn_ambiguous_refs) |
528 | break; | |
c0277d15 | 529 | } |
6cd4a898 | 530 | strbuf_release(&path); |
7bd9bcf3 MH |
531 | free(last_branch); |
532 | return logs_found; | |
2ddb5d17 BK |
533 | } |
534 | ||
266b1827 DT |
535 | static int is_per_worktree_ref(const char *refname) |
536 | { | |
ce414b33 DT |
537 | return !strcmp(refname, "HEAD") || |
538 | starts_with(refname, "refs/bisect/"); | |
266b1827 DT |
539 | } |
540 | ||
541 | static int is_pseudoref_syntax(const char *refname) | |
542 | { | |
543 | const char *c; | |
544 | ||
545 | for (c = refname; *c; c++) { | |
546 | if (!isupper(*c) && *c != '-' && *c != '_') | |
547 | return 0; | |
548 | } | |
549 | ||
550 | return 1; | |
551 | } | |
552 | ||
553 | enum ref_type ref_type(const char *refname) | |
554 | { | |
555 | if (is_per_worktree_ref(refname)) | |
556 | return REF_TYPE_PER_WORKTREE; | |
557 | if (is_pseudoref_syntax(refname)) | |
558 | return REF_TYPE_PSEUDOREF; | |
559 | return REF_TYPE_NORMAL; | |
560 | } | |
561 | ||
4ff0f01c MH |
562 | long get_files_ref_lock_timeout_ms(void) |
563 | { | |
564 | static int configured = 0; | |
565 | ||
566 | /* The default timeout is 100 ms: */ | |
567 | static int timeout_ms = 100; | |
568 | ||
569 | if (!configured) { | |
570 | git_config_get_int("core.filesreflocktimeout", &timeout_ms); | |
571 | configured = 1; | |
572 | } | |
573 | ||
574 | return timeout_ms; | |
575 | } | |
576 | ||
74ec19d4 DT |
577 | static int write_pseudoref(const char *pseudoref, const unsigned char *sha1, |
578 | const unsigned char *old_sha1, struct strbuf *err) | |
579 | { | |
580 | const char *filename; | |
581 | int fd; | |
582 | static struct lock_file lock; | |
583 | struct strbuf buf = STRBUF_INIT; | |
584 | int ret = -1; | |
585 | ||
586 | strbuf_addf(&buf, "%s\n", sha1_to_hex(sha1)); | |
587 | ||
588 | filename = git_path("%s", pseudoref); | |
4ff0f01c MH |
589 | fd = hold_lock_file_for_update_timeout(&lock, filename, |
590 | LOCK_DIE_ON_ERROR, | |
591 | get_files_ref_lock_timeout_ms()); | |
74ec19d4 | 592 | if (fd < 0) { |
0568c8e9 | 593 | strbuf_addf(err, "could not open '%s' for writing: %s", |
74ec19d4 | 594 | filename, strerror(errno)); |
aeb014f6 | 595 | goto done; |
74ec19d4 DT |
596 | } |
597 | ||
598 | if (old_sha1) { | |
599 | unsigned char actual_old_sha1[20]; | |
2c3aed13 DT |
600 | |
601 | if (read_ref(pseudoref, actual_old_sha1)) | |
602 | die("could not read ref '%s'", pseudoref); | |
74ec19d4 | 603 | if (hashcmp(actual_old_sha1, old_sha1)) { |
0568c8e9 | 604 | strbuf_addf(err, "unexpected sha1 when writing '%s'", pseudoref); |
74ec19d4 DT |
605 | rollback_lock_file(&lock); |
606 | goto done; | |
607 | } | |
608 | } | |
609 | ||
06f46f23 | 610 | if (write_in_full(fd, buf.buf, buf.len) < 0) { |
0568c8e9 | 611 | strbuf_addf(err, "could not write to '%s'", filename); |
74ec19d4 DT |
612 | rollback_lock_file(&lock); |
613 | goto done; | |
614 | } | |
615 | ||
616 | commit_lock_file(&lock); | |
617 | ret = 0; | |
618 | done: | |
619 | strbuf_release(&buf); | |
620 | return ret; | |
621 | } | |
622 | ||
2616a5e5 | 623 | static int delete_pseudoref(const char *pseudoref, const struct object_id *old_oid) |
74ec19d4 DT |
624 | { |
625 | static struct lock_file lock; | |
626 | const char *filename; | |
627 | ||
628 | filename = git_path("%s", pseudoref); | |
629 | ||
2616a5e5 | 630 | if (old_oid && !is_null_oid(old_oid)) { |
74ec19d4 | 631 | int fd; |
2616a5e5 | 632 | struct object_id actual_old_oid; |
74ec19d4 | 633 | |
4ff0f01c MH |
634 | fd = hold_lock_file_for_update_timeout( |
635 | &lock, filename, LOCK_DIE_ON_ERROR, | |
636 | get_files_ref_lock_timeout_ms()); | |
74ec19d4 DT |
637 | if (fd < 0) |
638 | die_errno(_("Could not open '%s' for writing"), filename); | |
2616a5e5 | 639 | if (read_ref(pseudoref, actual_old_oid.hash)) |
2c3aed13 | 640 | die("could not read ref '%s'", pseudoref); |
2616a5e5 | 641 | if (oidcmp(&actual_old_oid, old_oid)) { |
74ec19d4 DT |
642 | warning("Unexpected sha1 when deleting %s", pseudoref); |
643 | rollback_lock_file(&lock); | |
644 | return -1; | |
a4c653df | 645 | } |
74ec19d4 DT |
646 | |
647 | unlink(filename); | |
648 | rollback_lock_file(&lock); | |
649 | } else { | |
650 | unlink(filename); | |
4bd18c43 | 651 | } |
a4c653df | 652 | |
4bd18c43 | 653 | return 0; |
95fc7512 | 654 | } |
d556fae2 | 655 | |
c0fe4e8b NTND |
656 | int refs_delete_ref(struct ref_store *refs, const char *msg, |
657 | const char *refname, | |
2616a5e5 | 658 | const struct object_id *old_oid, |
c0fe4e8b | 659 | unsigned int flags) |
41b625b0 | 660 | { |
7521cc46 | 661 | struct ref_transaction *transaction; |
a4c653df | 662 | struct strbuf err = STRBUF_INIT; |
8b5157e4 | 663 | |
c0fe4e8b NTND |
664 | if (ref_type(refname) == REF_TYPE_PSEUDOREF) { |
665 | assert(refs == get_main_ref_store()); | |
2616a5e5 | 666 | return delete_pseudoref(refname, old_oid); |
c0fe4e8b | 667 | } |
d48744d1 | 668 | |
c0fe4e8b | 669 | transaction = ref_store_transaction_begin(refs, &err); |
7521cc46 | 670 | if (!transaction || |
2616a5e5 | 671 | ref_transaction_delete(transaction, refname, |
672 | old_oid ? old_oid->hash : NULL, | |
755b49ae | 673 | flags, msg, &err) || |
db7516ab | 674 | ref_transaction_commit(transaction, &err)) { |
7521cc46 RS |
675 | error("%s", err.buf); |
676 | ref_transaction_free(transaction); | |
677 | strbuf_release(&err); | |
c0277d15 | 678 | return 1; |
41b625b0 | 679 | } |
7bd9bcf3 MH |
680 | ref_transaction_free(transaction); |
681 | strbuf_release(&err); | |
b531394d BC |
682 | return 0; |
683 | } | |
41b625b0 | 684 | |
c0fe4e8b | 685 | int delete_ref(const char *msg, const char *refname, |
2616a5e5 | 686 | const struct object_id *old_oid, unsigned int flags) |
c0fe4e8b NTND |
687 | { |
688 | return refs_delete_ref(get_main_ref_store(), msg, refname, | |
2616a5e5 | 689 | old_oid, flags); |
c0fe4e8b NTND |
690 | } |
691 | ||
4cb77009 | 692 | int copy_reflog_msg(char *buf, const char *msg) |
0ec29a47 JH |
693 | { |
694 | char *cp = buf; | |
695 | char c; | |
696 | int wasspace = 1; | |
8b5157e4 | 697 | |
0ec29a47 JH |
698 | *cp++ = '\t'; |
699 | while ((c = *msg++)) { | |
700 | if (wasspace && isspace(c)) | |
701 | continue; | |
702 | wasspace = isspace(c); | |
703 | if (wasspace) | |
704 | c = ' '; | |
705 | *cp++ = c; | |
a4c653df | 706 | } |
0ec29a47 JH |
707 | while (buf < cp && isspace(cp[-1])) |
708 | cp--; | |
709 | *cp++ = '\n'; | |
710 | return cp - buf; | |
711 | } | |
8b5157e4 | 712 | |
4cb77009 | 713 | int should_autocreate_reflog(const char *refname) |
4e2bef57 | 714 | { |
341fb286 CW |
715 | switch (log_all_ref_updates) { |
716 | case LOG_REFS_ALWAYS: | |
717 | return 1; | |
718 | case LOG_REFS_NORMAL: | |
719 | return starts_with(refname, "refs/heads/") || | |
720 | starts_with(refname, "refs/remotes/") || | |
721 | starts_with(refname, "refs/notes/") || | |
722 | !strcmp(refname, "HEAD"); | |
723 | default: | |
4e2bef57 | 724 | return 0; |
341fb286 | 725 | } |
4e2bef57 DT |
726 | } |
727 | ||
e7e0f26e | 728 | int is_branch(const char *refname) |
c3b0dec5 | 729 | { |
59556548 | 730 | return !strcmp(refname, "HEAD") || starts_with(refname, "refs/heads/"); |
41b625b0 NP |
731 | } |
732 | ||
4207ed28 RS |
733 | struct read_ref_at_cb { |
734 | const char *refname; | |
dddbad72 | 735 | timestamp_t at_time; |
4207ed28 RS |
736 | int cnt; |
737 | int reccnt; | |
738 | unsigned char *sha1; | |
739 | int found_it; | |
740 | ||
741 | unsigned char osha1[20]; | |
742 | unsigned char nsha1[20]; | |
743 | int tz; | |
dddbad72 | 744 | timestamp_t date; |
4207ed28 | 745 | char **msg; |
dddbad72 | 746 | timestamp_t *cutoff_time; |
4207ed28 RS |
747 | int *cutoff_tz; |
748 | int *cutoff_cnt; | |
749 | }; | |
750 | ||
9461d272 | 751 | static int read_ref_at_ent(struct object_id *ooid, struct object_id *noid, |
dddbad72 | 752 | const char *email, timestamp_t timestamp, int tz, |
4207ed28 RS |
753 | const char *message, void *cb_data) |
754 | { | |
755 | struct read_ref_at_cb *cb = cb_data; | |
756 | ||
757 | cb->reccnt++; | |
758 | cb->tz = tz; | |
759 | cb->date = timestamp; | |
760 | ||
761 | if (timestamp <= cb->at_time || cb->cnt == 0) { | |
762 | if (cb->msg) | |
763 | *cb->msg = xstrdup(message); | |
764 | if (cb->cutoff_time) | |
765 | *cb->cutoff_time = timestamp; | |
766 | if (cb->cutoff_tz) | |
767 | *cb->cutoff_tz = tz; | |
768 | if (cb->cutoff_cnt) | |
769 | *cb->cutoff_cnt = cb->reccnt - 1; | |
770 | /* | |
771 | * we have not yet updated cb->[n|o]sha1 so they still | |
772 | * hold the values for the previous record. | |
773 | */ | |
774 | if (!is_null_sha1(cb->osha1)) { | |
9461d272 | 775 | hashcpy(cb->sha1, noid->hash); |
776 | if (hashcmp(cb->osha1, noid->hash)) | |
4207ed28 | 777 | warning("Log for ref %s has gap after %s.", |
a5481a6c | 778 | cb->refname, show_date(cb->date, cb->tz, DATE_MODE(RFC2822))); |
4207ed28 RS |
779 | } |
780 | else if (cb->date == cb->at_time) | |
9461d272 | 781 | hashcpy(cb->sha1, noid->hash); |
782 | else if (hashcmp(noid->hash, cb->sha1)) | |
4207ed28 RS |
783 | warning("Log for ref %s unexpectedly ended on %s.", |
784 | cb->refname, show_date(cb->date, cb->tz, | |
a5481a6c | 785 | DATE_MODE(RFC2822))); |
9461d272 | 786 | hashcpy(cb->osha1, ooid->hash); |
787 | hashcpy(cb->nsha1, noid->hash); | |
4207ed28 RS |
788 | cb->found_it = 1; |
789 | return 1; | |
790 | } | |
9461d272 | 791 | hashcpy(cb->osha1, ooid->hash); |
792 | hashcpy(cb->nsha1, noid->hash); | |
4207ed28 RS |
793 | if (cb->cnt > 0) |
794 | cb->cnt--; | |
795 | return 0; | |
796 | } | |
797 | ||
9461d272 | 798 | static int read_ref_at_ent_oldest(struct object_id *ooid, struct object_id *noid, |
dddbad72 | 799 | const char *email, timestamp_t timestamp, |
4207ed28 RS |
800 | int tz, const char *message, void *cb_data) |
801 | { | |
802 | struct read_ref_at_cb *cb = cb_data; | |
803 | ||
804 | if (cb->msg) | |
805 | *cb->msg = xstrdup(message); | |
806 | if (cb->cutoff_time) | |
807 | *cb->cutoff_time = timestamp; | |
808 | if (cb->cutoff_tz) | |
809 | *cb->cutoff_tz = tz; | |
810 | if (cb->cutoff_cnt) | |
811 | *cb->cutoff_cnt = cb->reccnt; | |
9461d272 | 812 | hashcpy(cb->sha1, ooid->hash); |
4207ed28 | 813 | if (is_null_sha1(cb->sha1)) |
9461d272 | 814 | hashcpy(cb->sha1, noid->hash); |
4207ed28 RS |
815 | /* We just want the first entry */ |
816 | return 1; | |
16d7cc90 JH |
817 | } |
818 | ||
dddbad72 | 819 | int read_ref_at(const char *refname, unsigned int flags, timestamp_t at_time, int cnt, |
dfefa935 | 820 | unsigned char *sha1, char **msg, |
dddbad72 | 821 | timestamp_t *cutoff_time, int *cutoff_tz, int *cutoff_cnt) |
d556fae2 | 822 | { |
4207ed28 | 823 | struct read_ref_at_cb cb; |
d556fae2 | 824 | |
4207ed28 RS |
825 | memset(&cb, 0, sizeof(cb)); |
826 | cb.refname = refname; | |
827 | cb.at_time = at_time; | |
828 | cb.cnt = cnt; | |
829 | cb.msg = msg; | |
830 | cb.cutoff_time = cutoff_time; | |
831 | cb.cutoff_tz = cutoff_tz; | |
832 | cb.cutoff_cnt = cutoff_cnt; | |
833 | cb.sha1 = sha1; | |
834 | ||
835 | for_each_reflog_ent_reverse(refname, read_ref_at_ent, &cb); | |
836 | ||
c41a87dd | 837 | if (!cb.reccnt) { |
321c89bf | 838 | if (flags & GET_OID_QUIETLY) |
c41a87dd DA |
839 | exit(128); |
840 | else | |
841 | die("Log for %s is empty.", refname); | |
842 | } | |
4207ed28 RS |
843 | if (cb.found_it) |
844 | return 0; | |
845 | ||
846 | for_each_reflog_ent(refname, read_ref_at_ent_oldest, &cb); | |
d556fae2 | 847 | |
16d7cc90 | 848 | return 1; |
d556fae2 | 849 | } |
2ff81662 | 850 | |
c0fe4e8b NTND |
851 | struct ref_transaction *ref_store_transaction_begin(struct ref_store *refs, |
852 | struct strbuf *err) | |
caa4046c | 853 | { |
c0fe4e8b | 854 | struct ref_transaction *tr; |
5a603b04 JN |
855 | assert(err); |
856 | ||
c0fe4e8b NTND |
857 | tr = xcalloc(1, sizeof(struct ref_transaction)); |
858 | tr->ref_store = refs; | |
859 | return tr; | |
860 | } | |
861 | ||
862 | struct ref_transaction *ref_transaction_begin(struct strbuf *err) | |
863 | { | |
864 | return ref_store_transaction_begin(get_main_ref_store(), err); | |
caa4046c MH |
865 | } |
866 | ||
026bd1d3 | 867 | void ref_transaction_free(struct ref_transaction *transaction) |
caa4046c | 868 | { |
43a2dfde | 869 | size_t i; |
caa4046c | 870 | |
1b07255c RS |
871 | if (!transaction) |
872 | return; | |
873 | ||
30173b88 MH |
874 | switch (transaction->state) { |
875 | case REF_TRANSACTION_OPEN: | |
876 | case REF_TRANSACTION_CLOSED: | |
877 | /* OK */ | |
878 | break; | |
879 | case REF_TRANSACTION_PREPARED: | |
880 | die("BUG: free called on a prepared reference transaction"); | |
881 | break; | |
882 | default: | |
883 | die("BUG: unexpected reference transaction state"); | |
884 | break; | |
885 | } | |
886 | ||
db7516ab RS |
887 | for (i = 0; i < transaction->nr; i++) { |
888 | free(transaction->updates[i]->msg); | |
88615910 | 889 | free(transaction->updates[i]); |
db7516ab | 890 | } |
caa4046c MH |
891 | free(transaction->updates); |
892 | free(transaction); | |
893 | } | |
894 | ||
71564516 MH |
895 | struct ref_update *ref_transaction_add_update( |
896 | struct ref_transaction *transaction, | |
897 | const char *refname, unsigned int flags, | |
898 | const unsigned char *new_sha1, | |
899 | const unsigned char *old_sha1, | |
900 | const char *msg) | |
caa4046c | 901 | { |
96ffc06f | 902 | struct ref_update *update; |
71564516 MH |
903 | |
904 | if (transaction->state != REF_TRANSACTION_OPEN) | |
905 | die("BUG: update called for transaction that is not open"); | |
906 | ||
907 | if ((flags & REF_ISPRUNING) && !(flags & REF_NODEREF)) | |
908 | die("BUG: REF_ISPRUNING set without REF_NODEREF"); | |
909 | ||
96ffc06f | 910 | FLEX_ALLOC_STR(update, refname, refname); |
caa4046c MH |
911 | ALLOC_GROW(transaction->updates, transaction->nr + 1, transaction->alloc); |
912 | transaction->updates[transaction->nr++] = update; | |
71564516 MH |
913 | |
914 | update->flags = flags; | |
915 | ||
916 | if (flags & REF_HAVE_NEW) | |
98491298 | 917 | hashcpy(update->new_oid.hash, new_sha1); |
71564516 | 918 | if (flags & REF_HAVE_OLD) |
98491298 | 919 | hashcpy(update->old_oid.hash, old_sha1); |
13092a91 | 920 | update->msg = xstrdup_or_null(msg); |
caa4046c MH |
921 | return update; |
922 | } | |
923 | ||
8e34800e RS |
924 | int ref_transaction_update(struct ref_transaction *transaction, |
925 | const char *refname, | |
926 | const unsigned char *new_sha1, | |
927 | const unsigned char *old_sha1, | |
1d147bdf | 928 | unsigned int flags, const char *msg, |
8e34800e | 929 | struct strbuf *err) |
caa4046c | 930 | { |
5a603b04 JN |
931 | assert(err); |
932 | ||
8a679de6 MH |
933 | if ((new_sha1 && !is_null_sha1(new_sha1)) ? |
934 | check_refname_format(refname, REFNAME_ALLOW_ONELEVEL) : | |
935 | !refname_is_safe(refname)) { | |
0568c8e9 | 936 | strbuf_addf(err, "refusing to update ref with bad name '%s'", |
d0f810f0 RS |
937 | refname); |
938 | return -1; | |
939 | } | |
940 | ||
c788c54c TG |
941 | flags &= REF_TRANSACTION_UPDATE_ALLOWED_FLAGS; |
942 | ||
71564516 MH |
943 | flags |= (new_sha1 ? REF_HAVE_NEW : 0) | (old_sha1 ? REF_HAVE_OLD : 0); |
944 | ||
945 | ref_transaction_add_update(transaction, refname, flags, | |
946 | new_sha1, old_sha1, msg); | |
8e34800e | 947 | return 0; |
caa4046c MH |
948 | } |
949 | ||
b416af5b RS |
950 | int ref_transaction_create(struct ref_transaction *transaction, |
951 | const char *refname, | |
952 | const unsigned char *new_sha1, | |
fec14ec3 | 953 | unsigned int flags, const char *msg, |
b416af5b | 954 | struct strbuf *err) |
caa4046c | 955 | { |
f04c5b55 MH |
956 | if (!new_sha1 || is_null_sha1(new_sha1)) |
957 | die("BUG: create called without valid new_sha1"); | |
bc9f2925 | 958 | return ref_transaction_update(transaction, refname, new_sha1, |
1d147bdf | 959 | null_sha1, flags, msg, err); |
caa4046c MH |
960 | } |
961 | ||
8c8bdc0d RS |
962 | int ref_transaction_delete(struct ref_transaction *transaction, |
963 | const char *refname, | |
964 | const unsigned char *old_sha1, | |
fb5a6bb6 | 965 | unsigned int flags, const char *msg, |
8c8bdc0d | 966 | struct strbuf *err) |
caa4046c | 967 | { |
60294596 MH |
968 | if (old_sha1 && is_null_sha1(old_sha1)) |
969 | die("BUG: delete called with old_sha1 set to zeros"); | |
1d147bdf | 970 | return ref_transaction_update(transaction, refname, |
fb5a6bb6 | 971 | null_sha1, old_sha1, |
1d147bdf | 972 | flags, msg, err); |
caa4046c MH |
973 | } |
974 | ||
16180334 MH |
975 | int ref_transaction_verify(struct ref_transaction *transaction, |
976 | const char *refname, | |
977 | const unsigned char *old_sha1, | |
978 | unsigned int flags, | |
979 | struct strbuf *err) | |
980 | { | |
981 | if (!old_sha1) | |
982 | die("BUG: verify called with old_sha1 set to NULL"); | |
983 | return ref_transaction_update(transaction, refname, | |
984 | NULL, old_sha1, | |
985 | flags, NULL, err); | |
986 | } | |
987 | ||
8f6dc7e3 | 988 | int update_ref_oid(const char *msg, const char *refname, |
989 | const struct object_id *new_oid, const struct object_id *old_oid, | |
990 | unsigned int flags, enum action_on_err onerr) | |
991 | { | |
992 | return update_ref(msg, refname, new_oid ? new_oid->hash : NULL, | |
993 | old_oid ? old_oid->hash : NULL, flags, onerr); | |
994 | } | |
995 | ||
c0fe4e8b NTND |
996 | int refs_update_ref(struct ref_store *refs, const char *msg, |
997 | const char *refname, const unsigned char *new_sha1, | |
998 | const unsigned char *old_sha1, unsigned int flags, | |
999 | enum action_on_err onerr) | |
4738a333 | 1000 | { |
74ec19d4 | 1001 | struct ref_transaction *t = NULL; |
b4d75ac1 | 1002 | struct strbuf err = STRBUF_INIT; |
74ec19d4 | 1003 | int ret = 0; |
b4d75ac1 | 1004 | |
74ec19d4 | 1005 | if (ref_type(refname) == REF_TYPE_PSEUDOREF) { |
c0fe4e8b | 1006 | assert(refs == get_main_ref_store()); |
74ec19d4 DT |
1007 | ret = write_pseudoref(refname, new_sha1, old_sha1, &err); |
1008 | } else { | |
c0fe4e8b | 1009 | t = ref_store_transaction_begin(refs, &err); |
74ec19d4 DT |
1010 | if (!t || |
1011 | ref_transaction_update(t, refname, new_sha1, old_sha1, | |
1012 | flags, msg, &err) || | |
1013 | ref_transaction_commit(t, &err)) { | |
1014 | ret = 1; | |
1015 | ref_transaction_free(t); | |
1016 | } | |
1017 | } | |
1018 | if (ret) { | |
b4d75ac1 RS |
1019 | const char *str = "update_ref failed for ref '%s': %s"; |
1020 | ||
b4d75ac1 RS |
1021 | switch (onerr) { |
1022 | case UPDATE_REFS_MSG_ON_ERR: | |
1023 | error(str, refname, err.buf); | |
1024 | break; | |
1025 | case UPDATE_REFS_DIE_ON_ERR: | |
1026 | die(str, refname, err.buf); | |
1027 | break; | |
1028 | case UPDATE_REFS_QUIET_ON_ERR: | |
1029 | break; | |
1030 | } | |
1031 | strbuf_release(&err); | |
4738a333 | 1032 | return 1; |
b4d75ac1 RS |
1033 | } |
1034 | strbuf_release(&err); | |
74ec19d4 DT |
1035 | if (t) |
1036 | ref_transaction_free(t); | |
b4d75ac1 | 1037 | return 0; |
4738a333 BK |
1038 | } |
1039 | ||
c0fe4e8b NTND |
1040 | int update_ref(const char *msg, const char *refname, |
1041 | const unsigned char *new_sha1, | |
1042 | const unsigned char *old_sha1, | |
1043 | unsigned int flags, enum action_on_err onerr) | |
1044 | { | |
1045 | return refs_update_ref(get_main_ref_store(), msg, refname, new_sha1, | |
1046 | old_sha1, flags, onerr); | |
1047 | } | |
1048 | ||
dfefa935 | 1049 | char *shorten_unambiguous_ref(const char *refname, int strict) |
7c2b3029 JK |
1050 | { |
1051 | int i; | |
1052 | static char **scanf_fmts; | |
1053 | static int nr_rules; | |
1054 | char *short_name; | |
6cd4a898 | 1055 | struct strbuf resolved_buf = STRBUF_INIT; |
7c2b3029 | 1056 | |
7c2b3029 | 1057 | if (!nr_rules) { |
4346663a MH |
1058 | /* |
1059 | * Pre-generate scanf formats from ref_rev_parse_rules[]. | |
1060 | * Generate a format suitable for scanf from a | |
1061 | * ref_rev_parse_rules rule by interpolating "%s" at the | |
1062 | * location of the "%.*s". | |
1063 | */ | |
7c2b3029 | 1064 | size_t total_len = 0; |
84d5633f | 1065 | size_t offset = 0; |
7c2b3029 JK |
1066 | |
1067 | /* the rule list is NULL terminated, count them first */ | |
a4165851 | 1068 | for (nr_rules = 0; ref_rev_parse_rules[nr_rules]; nr_rules++) |
7902fe03 MH |
1069 | /* -2 for strlen("%.*s") - strlen("%s"); +1 for NUL */ |
1070 | total_len += strlen(ref_rev_parse_rules[nr_rules]) - 2 + 1; | |
7c2b3029 | 1071 | |
50492f7b | 1072 | scanf_fmts = xmalloc(st_add(st_mult(sizeof(char *), nr_rules), total_len)); |
7c2b3029 | 1073 | |
84d5633f | 1074 | offset = 0; |
7c2b3029 | 1075 | for (i = 0; i < nr_rules; i++) { |
4346663a | 1076 | assert(offset < total_len); |
84d5633f | 1077 | scanf_fmts[i] = (char *)&scanf_fmts[nr_rules] + offset; |
4346663a MH |
1078 | offset += snprintf(scanf_fmts[i], total_len - offset, |
1079 | ref_rev_parse_rules[i], 2, "%s") + 1; | |
7c2b3029 JK |
1080 | } |
1081 | } | |
1082 | ||
1083 | /* bail out if there are no rules */ | |
1084 | if (!nr_rules) | |
dfefa935 | 1085 | return xstrdup(refname); |
7c2b3029 | 1086 | |
dfefa935 MH |
1087 | /* buffer for scanf result, at most refname must fit */ |
1088 | short_name = xstrdup(refname); | |
7c2b3029 JK |
1089 | |
1090 | /* skip first rule, it will always match */ | |
1091 | for (i = nr_rules - 1; i > 0 ; --i) { | |
1092 | int j; | |
6e7b3309 | 1093 | int rules_to_fail = i; |
7c2b3029 JK |
1094 | int short_name_len; |
1095 | ||
dfefa935 | 1096 | if (1 != sscanf(refname, scanf_fmts[i], short_name)) |
7c2b3029 JK |
1097 | continue; |
1098 | ||
1099 | short_name_len = strlen(short_name); | |
1100 | ||
6e7b3309 BW |
1101 | /* |
1102 | * in strict mode, all (except the matched one) rules | |
1103 | * must fail to resolve to a valid non-ambiguous ref | |
1104 | */ | |
1105 | if (strict) | |
1106 | rules_to_fail = nr_rules; | |
1107 | ||
7c2b3029 JK |
1108 | /* |
1109 | * check if the short name resolves to a valid ref, | |
1110 | * but use only rules prior to the matched one | |
1111 | */ | |
6e7b3309 | 1112 | for (j = 0; j < rules_to_fail; j++) { |
7c2b3029 | 1113 | const char *rule = ref_rev_parse_rules[j]; |
7c2b3029 | 1114 | |
6e7b3309 BW |
1115 | /* skip matched rule */ |
1116 | if (i == j) | |
1117 | continue; | |
1118 | ||
7c2b3029 JK |
1119 | /* |
1120 | * the short name is ambiguous, if it resolves | |
1121 | * (with this previous rule) to a valid ref | |
1122 | * read_ref() returns 0 on success | |
1123 | */ | |
6cd4a898 JK |
1124 | strbuf_reset(&resolved_buf); |
1125 | strbuf_addf(&resolved_buf, rule, | |
1126 | short_name_len, short_name); | |
1127 | if (ref_exists(resolved_buf.buf)) | |
7c2b3029 JK |
1128 | break; |
1129 | } | |
1130 | ||
1131 | /* | |
1132 | * short name is non-ambiguous if all previous rules | |
1133 | * haven't resolved to a valid ref | |
1134 | */ | |
6cd4a898 JK |
1135 | if (j == rules_to_fail) { |
1136 | strbuf_release(&resolved_buf); | |
7c2b3029 | 1137 | return short_name; |
6cd4a898 | 1138 | } |
7c2b3029 JK |
1139 | } |
1140 | ||
6cd4a898 | 1141 | strbuf_release(&resolved_buf); |
7c2b3029 | 1142 | free(short_name); |
dfefa935 | 1143 | return xstrdup(refname); |
7c2b3029 | 1144 | } |
daebaa78 JH |
1145 | |
1146 | static struct string_list *hide_refs; | |
1147 | ||
1148 | int parse_hide_refs_config(const char *var, const char *value, const char *section) | |
1149 | { | |
ad8c7cda | 1150 | const char *key; |
daebaa78 | 1151 | if (!strcmp("transfer.hiderefs", var) || |
ad8c7cda JK |
1152 | (!parse_config_key(var, section, NULL, NULL, &key) && |
1153 | !strcmp(key, "hiderefs"))) { | |
daebaa78 JH |
1154 | char *ref; |
1155 | int len; | |
1156 | ||
1157 | if (!value) | |
1158 | return config_error_nonbool(var); | |
1159 | ref = xstrdup(value); | |
1160 | len = strlen(ref); | |
1161 | while (len && ref[len - 1] == '/') | |
1162 | ref[--len] = '\0'; | |
1163 | if (!hide_refs) { | |
1164 | hide_refs = xcalloc(1, sizeof(*hide_refs)); | |
1165 | hide_refs->strdup_strings = 1; | |
1166 | } | |
1167 | string_list_append(hide_refs, ref); | |
1168 | } | |
1169 | return 0; | |
1170 | } | |
1171 | ||
78a766ab | 1172 | int ref_is_hidden(const char *refname, const char *refname_full) |
daebaa78 | 1173 | { |
2bc31d16 | 1174 | int i; |
daebaa78 JH |
1175 | |
1176 | if (!hide_refs) | |
1177 | return 0; | |
2bc31d16 JK |
1178 | for (i = hide_refs->nr - 1; i >= 0; i--) { |
1179 | const char *match = hide_refs->items[i].string; | |
78a766ab | 1180 | const char *subject; |
2bc31d16 | 1181 | int neg = 0; |
7a40a95e | 1182 | const char *p; |
2bc31d16 JK |
1183 | |
1184 | if (*match == '!') { | |
1185 | neg = 1; | |
1186 | match++; | |
1187 | } | |
1188 | ||
78a766ab LF |
1189 | if (*match == '^') { |
1190 | subject = refname_full; | |
1191 | match++; | |
1192 | } else { | |
1193 | subject = refname; | |
1194 | } | |
1195 | ||
1196 | /* refname can be NULL when namespaces are used. */ | |
7a40a95e CC |
1197 | if (subject && |
1198 | skip_prefix(subject, match, &p) && | |
1199 | (!*p || *p == '/')) | |
2bc31d16 | 1200 | return !neg; |
daebaa78 JH |
1201 | } |
1202 | return 0; | |
1203 | } | |
fa5b1830 | 1204 | |
0845122c DT |
1205 | const char *find_descendant_ref(const char *dirname, |
1206 | const struct string_list *extras, | |
1207 | const struct string_list *skip) | |
fa5b1830 | 1208 | { |
0845122c | 1209 | int pos; |
fa5b1830 | 1210 | |
0845122c DT |
1211 | if (!extras) |
1212 | return NULL; | |
fa5b1830 MH |
1213 | |
1214 | /* | |
0845122c DT |
1215 | * Look at the place where dirname would be inserted into |
1216 | * extras. If there is an entry at that position that starts | |
1217 | * with dirname (remember, dirname includes the trailing | |
1218 | * slash) and is not in skip, then we have a conflict. | |
fa5b1830 | 1219 | */ |
0845122c DT |
1220 | for (pos = string_list_find_insert_index(extras, dirname, 0); |
1221 | pos < extras->nr; pos++) { | |
1222 | const char *extra_refname = extras->items[pos].string; | |
fa5b1830 | 1223 | |
0845122c DT |
1224 | if (!starts_with(extra_refname, dirname)) |
1225 | break; | |
1226 | ||
1227 | if (!skip || !string_list_has_string(skip, extra_refname)) | |
1228 | return extra_refname; | |
fa5b1830 | 1229 | } |
0845122c DT |
1230 | return NULL; |
1231 | } | |
fa5b1830 | 1232 | |
7d2df051 NTND |
1233 | int refs_rename_ref_available(struct ref_store *refs, |
1234 | const char *old_refname, | |
1235 | const char *new_refname) | |
0845122c DT |
1236 | { |
1237 | struct string_list skip = STRING_LIST_INIT_NODUP; | |
1238 | struct strbuf err = STRBUF_INIT; | |
ff3a299c | 1239 | int ok; |
fa5b1830 | 1240 | |
ff3a299c | 1241 | string_list_insert(&skip, old_refname); |
7d2df051 NTND |
1242 | ok = !refs_verify_refname_available(refs, new_refname, |
1243 | NULL, &skip, &err); | |
ff3a299c | 1244 | if (!ok) |
0845122c DT |
1245 | error("%s", err.buf); |
1246 | ||
1247 | string_list_clear(&skip, 0); | |
1248 | strbuf_release(&err); | |
ff3a299c | 1249 | return ok; |
fa5b1830 | 1250 | } |
2bf68ed5 | 1251 | |
62f0b399 | 1252 | int refs_head_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
2bf68ed5 DT |
1253 | { |
1254 | struct object_id oid; | |
1255 | int flag; | |
1256 | ||
62f0b399 NTND |
1257 | if (!refs_read_ref_full(refs, "HEAD", RESOLVE_REF_READING, |
1258 | oid.hash, &flag)) | |
2bf68ed5 DT |
1259 | return fn("HEAD", &oid, flag, cb_data); |
1260 | ||
1261 | return 0; | |
1262 | } | |
1263 | ||
1264 | int head_ref(each_ref_fn fn, void *cb_data) | |
1265 | { | |
62f0b399 | 1266 | return refs_head_ref(get_main_ref_store(), fn, cb_data); |
2bf68ed5 | 1267 | } |
93770590 | 1268 | |
e121b9cb MH |
1269 | struct ref_iterator *refs_ref_iterator_begin( |
1270 | struct ref_store *refs, | |
1271 | const char *prefix, int trim, int flags) | |
1272 | { | |
1273 | struct ref_iterator *iter; | |
1274 | ||
0a0865b8 MH |
1275 | if (ref_paranoia < 0) |
1276 | ref_paranoia = git_env_bool("GIT_REF_PARANOIA", 0); | |
1277 | if (ref_paranoia) | |
1278 | flags |= DO_FOR_EACH_INCLUDE_BROKEN; | |
1279 | ||
e121b9cb | 1280 | iter = refs->be->iterator_begin(refs, prefix, flags); |
c7599718 MH |
1281 | |
1282 | /* | |
1283 | * `iterator_begin()` already takes care of prefix, but we | |
1284 | * might need to do some trimming: | |
1285 | */ | |
1286 | if (trim) | |
1287 | iter = prefix_ref_iterator_begin(iter, "", trim); | |
e121b9cb | 1288 | |
8738a8a4 MH |
1289 | /* Sanity check for subclasses: */ |
1290 | if (!iter->ordered) | |
1291 | BUG("reference iterator is not ordered"); | |
1292 | ||
e121b9cb MH |
1293 | return iter; |
1294 | } | |
1295 | ||
4c4de895 MH |
1296 | /* |
1297 | * Call fn for each reference in the specified submodule for which the | |
1298 | * refname begins with prefix. If trim is non-zero, then trim that | |
1299 | * many characters off the beginning of each refname before passing | |
1300 | * the refname to fn. flags can be DO_FOR_EACH_INCLUDE_BROKEN to | |
1301 | * include broken references in the iteration. If fn ever returns a | |
1302 | * non-zero value, stop the iteration and return that value; | |
1303 | * otherwise, return 0. | |
1304 | */ | |
7d2df051 | 1305 | static int do_for_each_ref(struct ref_store *refs, const char *prefix, |
4c4de895 MH |
1306 | each_ref_fn fn, int trim, int flags, void *cb_data) |
1307 | { | |
1308 | struct ref_iterator *iter; | |
1309 | ||
00eebe35 MH |
1310 | if (!refs) |
1311 | return 0; | |
1312 | ||
e121b9cb | 1313 | iter = refs_ref_iterator_begin(refs, prefix, trim, flags); |
4c4de895 MH |
1314 | |
1315 | return do_for_each_ref_iterator(iter, fn, cb_data); | |
1316 | } | |
1317 | ||
7d2df051 NTND |
1318 | int refs_for_each_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
1319 | { | |
1320 | return do_for_each_ref(refs, "", fn, 0, 0, cb_data); | |
1321 | } | |
1322 | ||
93770590 DT |
1323 | int for_each_ref(each_ref_fn fn, void *cb_data) |
1324 | { | |
7d2df051 | 1325 | return refs_for_each_ref(get_main_ref_store(), fn, cb_data); |
93770590 DT |
1326 | } |
1327 | ||
7d2df051 NTND |
1328 | int refs_for_each_ref_in(struct ref_store *refs, const char *prefix, |
1329 | each_ref_fn fn, void *cb_data) | |
1330 | { | |
1331 | return do_for_each_ref(refs, prefix, fn, strlen(prefix), 0, cb_data); | |
93770590 DT |
1332 | } |
1333 | ||
1334 | int for_each_ref_in(const char *prefix, each_ref_fn fn, void *cb_data) | |
1335 | { | |
7d2df051 | 1336 | return refs_for_each_ref_in(get_main_ref_store(), prefix, fn, cb_data); |
93770590 DT |
1337 | } |
1338 | ||
1339 | int for_each_fullref_in(const char *prefix, each_ref_fn fn, void *cb_data, unsigned int broken) | |
1340 | { | |
1341 | unsigned int flag = 0; | |
1342 | ||
1343 | if (broken) | |
1344 | flag = DO_FOR_EACH_INCLUDE_BROKEN; | |
7d2df051 NTND |
1345 | return do_for_each_ref(get_main_ref_store(), |
1346 | prefix, fn, 0, flag, cb_data); | |
93770590 DT |
1347 | } |
1348 | ||
073cf63c NTND |
1349 | int refs_for_each_fullref_in(struct ref_store *refs, const char *prefix, |
1350 | each_ref_fn fn, void *cb_data, | |
1351 | unsigned int broken) | |
03df567f MH |
1352 | { |
1353 | unsigned int flag = 0; | |
1354 | ||
1355 | if (broken) | |
1356 | flag = DO_FOR_EACH_INCLUDE_BROKEN; | |
073cf63c | 1357 | return do_for_each_ref(refs, prefix, fn, 0, flag, cb_data); |
03df567f MH |
1358 | } |
1359 | ||
93770590 DT |
1360 | int for_each_replace_ref(each_ref_fn fn, void *cb_data) |
1361 | { | |
7d2df051 NTND |
1362 | return do_for_each_ref(get_main_ref_store(), |
1363 | git_replace_ref_base, fn, | |
1364 | strlen(git_replace_ref_base), | |
006f3f28 | 1365 | DO_FOR_EACH_INCLUDE_BROKEN, cb_data); |
93770590 DT |
1366 | } |
1367 | ||
1368 | int for_each_namespaced_ref(each_ref_fn fn, void *cb_data) | |
1369 | { | |
1370 | struct strbuf buf = STRBUF_INIT; | |
1371 | int ret; | |
1372 | strbuf_addf(&buf, "%srefs/", get_git_namespace()); | |
7d2df051 NTND |
1373 | ret = do_for_each_ref(get_main_ref_store(), |
1374 | buf.buf, fn, 0, 0, cb_data); | |
93770590 DT |
1375 | strbuf_release(&buf); |
1376 | return ret; | |
1377 | } | |
1378 | ||
7d2df051 | 1379 | int refs_for_each_rawref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
93770590 | 1380 | { |
7d2df051 | 1381 | return do_for_each_ref(refs, "", fn, 0, |
93770590 DT |
1382 | DO_FOR_EACH_INCLUDE_BROKEN, cb_data); |
1383 | } | |
2d0663b2 | 1384 | |
7d2df051 NTND |
1385 | int for_each_rawref(each_ref_fn fn, void *cb_data) |
1386 | { | |
1387 | return refs_for_each_rawref(get_main_ref_store(), fn, cb_data); | |
1388 | } | |
1389 | ||
470be518 MH |
1390 | int refs_read_raw_ref(struct ref_store *ref_store, |
1391 | const char *refname, unsigned char *sha1, | |
1392 | struct strbuf *referent, unsigned int *type) | |
1393 | { | |
1394 | return ref_store->be->read_raw_ref(ref_store, refname, sha1, referent, type); | |
1395 | } | |
1396 | ||
2d0663b2 | 1397 | /* This function needs to return a meaningful errno on failure */ |
7d2df051 | 1398 | const char *refs_resolve_ref_unsafe(struct ref_store *refs, |
3c0cb0cb MH |
1399 | const char *refname, |
1400 | int resolve_flags, | |
1401 | unsigned char *sha1, int *flags) | |
2d0663b2 DT |
1402 | { |
1403 | static struct strbuf sb_refname = STRBUF_INIT; | |
54fad661 | 1404 | struct object_id unused_oid; |
2d0663b2 DT |
1405 | int unused_flags; |
1406 | int symref_count; | |
1407 | ||
54fad661 RS |
1408 | if (!sha1) |
1409 | sha1 = unused_oid.hash; | |
2d0663b2 DT |
1410 | if (!flags) |
1411 | flags = &unused_flags; | |
1412 | ||
1413 | *flags = 0; | |
1414 | ||
1415 | if (check_refname_format(refname, REFNAME_ALLOW_ONELEVEL)) { | |
1416 | if (!(resolve_flags & RESOLVE_REF_ALLOW_BAD_NAME) || | |
1417 | !refname_is_safe(refname)) { | |
1418 | errno = EINVAL; | |
1419 | return NULL; | |
1420 | } | |
1421 | ||
1422 | /* | |
1423 | * dwim_ref() uses REF_ISBROKEN to distinguish between | |
1424 | * missing refs and refs that were present but invalid, | |
1425 | * to complain about the latter to stderr. | |
1426 | * | |
1427 | * We don't know whether the ref exists, so don't set | |
1428 | * REF_ISBROKEN yet. | |
1429 | */ | |
1430 | *flags |= REF_BAD_NAME; | |
1431 | } | |
1432 | ||
1433 | for (symref_count = 0; symref_count < SYMREF_MAXDEPTH; symref_count++) { | |
1434 | unsigned int read_flags = 0; | |
1435 | ||
470be518 MH |
1436 | if (refs_read_raw_ref(refs, refname, |
1437 | sha1, &sb_refname, &read_flags)) { | |
2d0663b2 | 1438 | *flags |= read_flags; |
a1c1d817 JK |
1439 | |
1440 | /* In reading mode, refs must eventually resolve */ | |
1441 | if (resolve_flags & RESOLVE_REF_READING) | |
1442 | return NULL; | |
1443 | ||
1444 | /* | |
1445 | * Otherwise a missing ref is OK. But the files backend | |
1446 | * may show errors besides ENOENT if there are | |
1447 | * similarly-named refs. | |
1448 | */ | |
1449 | if (errno != ENOENT && | |
1450 | errno != EISDIR && | |
1451 | errno != ENOTDIR) | |
2d0663b2 | 1452 | return NULL; |
a1c1d817 | 1453 | |
2d0663b2 DT |
1454 | hashclr(sha1); |
1455 | if (*flags & REF_BAD_NAME) | |
1456 | *flags |= REF_ISBROKEN; | |
1457 | return refname; | |
1458 | } | |
1459 | ||
1460 | *flags |= read_flags; | |
1461 | ||
1462 | if (!(read_flags & REF_ISSYMREF)) { | |
1463 | if (*flags & REF_BAD_NAME) { | |
1464 | hashclr(sha1); | |
1465 | *flags |= REF_ISBROKEN; | |
1466 | } | |
1467 | return refname; | |
1468 | } | |
1469 | ||
1470 | refname = sb_refname.buf; | |
1471 | if (resolve_flags & RESOLVE_REF_NO_RECURSE) { | |
1472 | hashclr(sha1); | |
1473 | return refname; | |
1474 | } | |
1475 | if (check_refname_format(refname, REFNAME_ALLOW_ONELEVEL)) { | |
1476 | if (!(resolve_flags & RESOLVE_REF_ALLOW_BAD_NAME) || | |
1477 | !refname_is_safe(refname)) { | |
1478 | errno = EINVAL; | |
1479 | return NULL; | |
1480 | } | |
1481 | ||
1482 | *flags |= REF_ISBROKEN | REF_BAD_NAME; | |
1483 | } | |
1484 | } | |
1485 | ||
1486 | errno = ELOOP; | |
1487 | return NULL; | |
1488 | } | |
00eebe35 | 1489 | |
6fb5acfd DT |
1490 | /* backend functions */ |
1491 | int refs_init_db(struct strbuf *err) | |
1492 | { | |
077be78d | 1493 | struct ref_store *refs = get_main_ref_store(); |
6fb5acfd DT |
1494 | |
1495 | return refs->be->init_db(refs, err); | |
1496 | } | |
1497 | ||
bd40dcda MH |
1498 | const char *resolve_ref_unsafe(const char *refname, int resolve_flags, |
1499 | unsigned char *sha1, int *flags) | |
1500 | { | |
7d2df051 | 1501 | return refs_resolve_ref_unsafe(get_main_ref_store(), refname, |
bd40dcda MH |
1502 | resolve_flags, sha1, flags); |
1503 | } | |
1504 | ||
a8355bb7 MH |
1505 | int resolve_gitlink_ref(const char *submodule, const char *refname, |
1506 | unsigned char *sha1) | |
424dcc76 | 1507 | { |
424dcc76 MH |
1508 | struct ref_store *refs; |
1509 | int flags; | |
1510 | ||
29babbee | 1511 | refs = get_submodule_ref_store(submodule); |
48a8475f | 1512 | |
424dcc76 MH |
1513 | if (!refs) |
1514 | return -1; | |
1515 | ||
7d2df051 | 1516 | if (!refs_resolve_ref_unsafe(refs, refname, 0, sha1, &flags) || |
424dcc76 MH |
1517 | is_null_sha1(sha1)) |
1518 | return -1; | |
1519 | return 0; | |
1520 | } | |
1521 | ||
0c064d90 | 1522 | struct ref_store_hash_entry |
7d4558c4 MH |
1523 | { |
1524 | struct hashmap_entry ent; /* must be the first member! */ | |
1525 | ||
1526 | struct ref_store *refs; | |
1527 | ||
0c064d90 NTND |
1528 | /* NUL-terminated identifier of the ref store: */ |
1529 | char name[FLEX_ARRAY]; | |
7d4558c4 MH |
1530 | }; |
1531 | ||
7663cdc8 SB |
1532 | static int ref_store_hash_cmp(const void *unused_cmp_data, |
1533 | const void *entry, const void *entry_or_key, | |
7d4558c4 MH |
1534 | const void *keydata) |
1535 | { | |
0c064d90 NTND |
1536 | const struct ref_store_hash_entry *e1 = entry, *e2 = entry_or_key; |
1537 | const char *name = keydata ? keydata : e2->name; | |
7d4558c4 | 1538 | |
0c064d90 | 1539 | return strcmp(e1->name, name); |
7d4558c4 MH |
1540 | } |
1541 | ||
0c064d90 NTND |
1542 | static struct ref_store_hash_entry *alloc_ref_store_hash_entry( |
1543 | const char *name, struct ref_store *refs) | |
7d4558c4 | 1544 | { |
0c064d90 | 1545 | struct ref_store_hash_entry *entry; |
7d4558c4 | 1546 | |
0c064d90 NTND |
1547 | FLEX_ALLOC_STR(entry, name, name); |
1548 | hashmap_entry_init(entry, strhash(name)); | |
7d4558c4 MH |
1549 | entry->refs = refs; |
1550 | return entry; | |
1551 | } | |
1552 | ||
00eebe35 MH |
1553 | /* A pointer to the ref_store for the main repository: */ |
1554 | static struct ref_store *main_ref_store; | |
1555 | ||
7d4558c4 MH |
1556 | /* A hashmap of ref_stores, stored by submodule name: */ |
1557 | static struct hashmap submodule_ref_stores; | |
00eebe35 | 1558 | |
17eff96b NTND |
1559 | /* A hashmap of ref_stores, stored by worktree id: */ |
1560 | static struct hashmap worktree_ref_stores; | |
1561 | ||
c468da4e | 1562 | /* |
0c064d90 NTND |
1563 | * Look up a ref store by name. If that ref_store hasn't been |
1564 | * registered yet, return NULL. | |
c468da4e | 1565 | */ |
0c064d90 NTND |
1566 | static struct ref_store *lookup_ref_store_map(struct hashmap *map, |
1567 | const char *name) | |
00eebe35 | 1568 | { |
0c064d90 | 1569 | struct ref_store_hash_entry *entry; |
00eebe35 | 1570 | |
0c064d90 | 1571 | if (!map->tablesize) |
7d4558c4 MH |
1572 | /* It's initialized on demand in register_ref_store(). */ |
1573 | return NULL; | |
620a66b9 | 1574 | |
0c064d90 | 1575 | entry = hashmap_get_from_hash(map, strhash(name), name); |
7d4558c4 | 1576 | return entry ? entry->refs : NULL; |
00eebe35 MH |
1577 | } |
1578 | ||
c468da4e MH |
1579 | /* |
1580 | * Create, record, and return a ref_store instance for the specified | |
5d0bc90e | 1581 | * gitdir. |
c468da4e | 1582 | */ |
9e7ec634 NTND |
1583 | static struct ref_store *ref_store_init(const char *gitdir, |
1584 | unsigned int flags) | |
00eebe35 MH |
1585 | { |
1586 | const char *be_name = "files"; | |
1587 | struct ref_storage_be *be = find_ref_storage_backend(be_name); | |
ba88add5 | 1588 | struct ref_store *refs; |
00eebe35 MH |
1589 | |
1590 | if (!be) | |
1591 | die("BUG: reference backend %s is unknown", be_name); | |
1592 | ||
9e7ec634 | 1593 | refs = be->init(gitdir, flags); |
ba88add5 | 1594 | return refs; |
00eebe35 MH |
1595 | } |
1596 | ||
077be78d | 1597 | struct ref_store *get_main_ref_store(void) |
24c8407e NTND |
1598 | { |
1599 | if (main_ref_store) | |
1600 | return main_ref_store; | |
1601 | ||
0d8a814d | 1602 | main_ref_store = ref_store_init(get_git_dir(), REF_STORE_ALL_CAPS); |
378dc910 NTND |
1603 | return main_ref_store; |
1604 | } | |
1605 | ||
1606 | /* | |
0c064d90 NTND |
1607 | * Associate a ref store with a name. It is a fatal error to call this |
1608 | * function twice for the same name. | |
378dc910 | 1609 | */ |
0c064d90 NTND |
1610 | static void register_ref_store_map(struct hashmap *map, |
1611 | const char *type, | |
1612 | struct ref_store *refs, | |
1613 | const char *name) | |
378dc910 | 1614 | { |
0c064d90 | 1615 | if (!map->tablesize) |
7663cdc8 | 1616 | hashmap_init(map, ref_store_hash_cmp, NULL, 0); |
378dc910 | 1617 | |
0c064d90 NTND |
1618 | if (hashmap_put(map, alloc_ref_store_hash_entry(name, refs))) |
1619 | die("BUG: %s ref_store '%s' initialized twice", type, name); | |
24c8407e NTND |
1620 | } |
1621 | ||
18d0002d | 1622 | struct ref_store *get_submodule_ref_store(const char *submodule) |
00eebe35 | 1623 | { |
126c9e05 | 1624 | struct strbuf submodule_sb = STRBUF_INIT; |
00eebe35 | 1625 | struct ref_store *refs; |
29babbee NTND |
1626 | char *to_free = NULL; |
1627 | size_t len; | |
00eebe35 | 1628 | |
82a150f2 NTND |
1629 | if (!submodule) |
1630 | return NULL; | |
1631 | ||
873ea90d NTND |
1632 | len = strlen(submodule); |
1633 | while (len && is_dir_sep(submodule[len - 1])) | |
1634 | len--; | |
1635 | if (!len) | |
1636 | return NULL; | |
00eebe35 | 1637 | |
29babbee NTND |
1638 | if (submodule[len]) |
1639 | /* We need to strip off one or more trailing slashes */ | |
1640 | submodule = to_free = xmemdupz(submodule, len); | |
00eebe35 | 1641 | |
0c064d90 | 1642 | refs = lookup_ref_store_map(&submodule_ref_stores, submodule); |
126c9e05 | 1643 | if (refs) |
2c616c17 | 1644 | goto done; |
00eebe35 | 1645 | |
126c9e05 | 1646 | strbuf_addstr(&submodule_sb, submodule); |
2c616c17 NTND |
1647 | if (!is_nonbare_repository_dir(&submodule_sb)) |
1648 | goto done; | |
00eebe35 | 1649 | |
2c616c17 NTND |
1650 | if (submodule_to_gitdir(&submodule_sb, submodule)) |
1651 | goto done; | |
00eebe35 | 1652 | |
9e7ec634 NTND |
1653 | /* assume that add_submodule_odb() has been called */ |
1654 | refs = ref_store_init(submodule_sb.buf, | |
1655 | REF_STORE_READ | REF_STORE_ODB); | |
0c064d90 NTND |
1656 | register_ref_store_map(&submodule_ref_stores, "submodule", |
1657 | refs, submodule); | |
5d0bc90e | 1658 | |
2c616c17 | 1659 | done: |
5d0bc90e | 1660 | strbuf_release(&submodule_sb); |
29babbee NTND |
1661 | free(to_free); |
1662 | ||
00eebe35 MH |
1663 | return refs; |
1664 | } | |
1665 | ||
17eff96b NTND |
1666 | struct ref_store *get_worktree_ref_store(const struct worktree *wt) |
1667 | { | |
1668 | struct ref_store *refs; | |
1669 | const char *id; | |
1670 | ||
1671 | if (wt->is_current) | |
1672 | return get_main_ref_store(); | |
1673 | ||
1674 | id = wt->id ? wt->id : "/"; | |
1675 | refs = lookup_ref_store_map(&worktree_ref_stores, id); | |
1676 | if (refs) | |
1677 | return refs; | |
1678 | ||
1679 | if (wt->id) | |
1680 | refs = ref_store_init(git_common_path("worktrees/%s", wt->id), | |
1681 | REF_STORE_ALL_CAPS); | |
1682 | else | |
1683 | refs = ref_store_init(get_git_common_dir(), | |
1684 | REF_STORE_ALL_CAPS); | |
1685 | ||
1686 | if (refs) | |
1687 | register_ref_store_map(&worktree_ref_stores, "worktree", | |
1688 | refs, id); | |
1689 | return refs; | |
1690 | } | |
1691 | ||
620a66b9 | 1692 | void base_ref_store_init(struct ref_store *refs, |
fbfd0a29 | 1693 | const struct ref_storage_be *be) |
00eebe35 | 1694 | { |
620a66b9 | 1695 | refs->be = be; |
00eebe35 | 1696 | } |
127b42a1 RS |
1697 | |
1698 | /* backend functions */ | |
7d2df051 | 1699 | int refs_pack_refs(struct ref_store *refs, unsigned int flags) |
8231527e | 1700 | { |
8231527e MH |
1701 | return refs->be->pack_refs(refs, flags); |
1702 | } | |
1703 | ||
7d2df051 NTND |
1704 | int refs_peel_ref(struct ref_store *refs, const char *refname, |
1705 | unsigned char *sha1) | |
1706 | { | |
ba1c052f MH |
1707 | int flag; |
1708 | unsigned char base[20]; | |
1709 | ||
1710 | if (current_ref_iter && current_ref_iter->refname == refname) { | |
1711 | struct object_id peeled; | |
1712 | ||
1713 | if (ref_iterator_peel(current_ref_iter, &peeled)) | |
1714 | return -1; | |
1715 | hashcpy(sha1, peeled.hash); | |
1716 | return 0; | |
1717 | } | |
1718 | ||
1719 | if (refs_read_ref_full(refs, refname, | |
1720 | RESOLVE_REF_READING, base, &flag)) | |
1721 | return -1; | |
1722 | ||
1723 | return peel_object(base, sha1); | |
8231527e MH |
1724 | } |
1725 | ||
bd427cf2 MH |
1726 | int peel_ref(const char *refname, unsigned char *sha1) |
1727 | { | |
7d2df051 NTND |
1728 | return refs_peel_ref(get_main_ref_store(), refname, sha1); |
1729 | } | |
bd427cf2 | 1730 | |
7d2df051 NTND |
1731 | int refs_create_symref(struct ref_store *refs, |
1732 | const char *ref_target, | |
1733 | const char *refs_heads_master, | |
1734 | const char *logmsg) | |
1735 | { | |
1736 | return refs->be->create_symref(refs, ref_target, | |
1737 | refs_heads_master, | |
1738 | logmsg); | |
bd427cf2 MH |
1739 | } |
1740 | ||
284689ba MH |
1741 | int create_symref(const char *ref_target, const char *refs_heads_master, |
1742 | const char *logmsg) | |
1743 | { | |
7d2df051 NTND |
1744 | return refs_create_symref(get_main_ref_store(), ref_target, |
1745 | refs_heads_master, logmsg); | |
284689ba MH |
1746 | } |
1747 | ||
2ced105c MH |
1748 | int ref_update_reject_duplicates(struct string_list *refnames, |
1749 | struct strbuf *err) | |
1750 | { | |
a552e50e | 1751 | size_t i, n = refnames->nr; |
2ced105c MH |
1752 | |
1753 | assert(err); | |
1754 | ||
8556f8d6 MH |
1755 | for (i = 1; i < n; i++) { |
1756 | int cmp = strcmp(refnames->items[i - 1].string, | |
1757 | refnames->items[i].string); | |
1758 | ||
1759 | if (!cmp) { | |
2ced105c MH |
1760 | strbuf_addf(err, |
1761 | "multiple updates for ref '%s' not allowed.", | |
1762 | refnames->items[i].string); | |
1763 | return 1; | |
8556f8d6 MH |
1764 | } else if (cmp > 0) { |
1765 | die("BUG: ref_update_reject_duplicates() received unsorted list"); | |
2ced105c | 1766 | } |
8556f8d6 | 1767 | } |
2ced105c MH |
1768 | return 0; |
1769 | } | |
1770 | ||
30173b88 MH |
1771 | int ref_transaction_prepare(struct ref_transaction *transaction, |
1772 | struct strbuf *err) | |
127b42a1 | 1773 | { |
c0fe4e8b | 1774 | struct ref_store *refs = transaction->ref_store; |
127b42a1 | 1775 | |
8d4240d3 MH |
1776 | switch (transaction->state) { |
1777 | case REF_TRANSACTION_OPEN: | |
1778 | /* Good. */ | |
1779 | break; | |
30173b88 MH |
1780 | case REF_TRANSACTION_PREPARED: |
1781 | die("BUG: prepare called twice on reference transaction"); | |
1782 | break; | |
8d4240d3 MH |
1783 | case REF_TRANSACTION_CLOSED: |
1784 | die("BUG: prepare called on a closed reference transaction"); | |
1785 | break; | |
1786 | default: | |
1787 | die("BUG: unexpected reference transaction state"); | |
1788 | break; | |
1789 | } | |
1790 | ||
d8f4481c JK |
1791 | if (getenv(GIT_QUARANTINE_ENVIRONMENT)) { |
1792 | strbuf_addstr(err, | |
1793 | _("ref updates forbidden inside quarantine environment")); | |
1794 | return -1; | |
1795 | } | |
1796 | ||
30173b88 MH |
1797 | return refs->be->transaction_prepare(refs, transaction, err); |
1798 | } | |
1799 | ||
1800 | int ref_transaction_abort(struct ref_transaction *transaction, | |
1801 | struct strbuf *err) | |
1802 | { | |
1803 | struct ref_store *refs = transaction->ref_store; | |
1804 | int ret = 0; | |
1805 | ||
1806 | switch (transaction->state) { | |
1807 | case REF_TRANSACTION_OPEN: | |
1808 | /* No need to abort explicitly. */ | |
1809 | break; | |
1810 | case REF_TRANSACTION_PREPARED: | |
1811 | ret = refs->be->transaction_abort(refs, transaction, err); | |
1812 | break; | |
1813 | case REF_TRANSACTION_CLOSED: | |
1814 | die("BUG: abort called on a closed reference transaction"); | |
1815 | break; | |
1816 | default: | |
1817 | die("BUG: unexpected reference transaction state"); | |
1818 | break; | |
1819 | } | |
1820 | ||
1821 | ref_transaction_free(transaction); | |
1822 | return ret; | |
1823 | } | |
1824 | ||
1825 | int ref_transaction_commit(struct ref_transaction *transaction, | |
1826 | struct strbuf *err) | |
1827 | { | |
1828 | struct ref_store *refs = transaction->ref_store; | |
1829 | int ret; | |
1830 | ||
1831 | switch (transaction->state) { | |
1832 | case REF_TRANSACTION_OPEN: | |
1833 | /* Need to prepare first. */ | |
1834 | ret = ref_transaction_prepare(transaction, err); | |
1835 | if (ret) | |
1836 | return ret; | |
1837 | break; | |
1838 | case REF_TRANSACTION_PREPARED: | |
1839 | /* Fall through to finish. */ | |
1840 | break; | |
1841 | case REF_TRANSACTION_CLOSED: | |
1842 | die("BUG: commit called on a closed reference transaction"); | |
1843 | break; | |
1844 | default: | |
1845 | die("BUG: unexpected reference transaction state"); | |
1846 | break; | |
1847 | } | |
1848 | ||
1849 | return refs->be->transaction_finish(refs, transaction, err); | |
127b42a1 | 1850 | } |
62665823 | 1851 | |
7d2df051 NTND |
1852 | int refs_verify_refname_available(struct ref_store *refs, |
1853 | const char *refname, | |
b05855b5 | 1854 | const struct string_list *extras, |
7d2df051 NTND |
1855 | const struct string_list *skip, |
1856 | struct strbuf *err) | |
62665823 | 1857 | { |
b05855b5 MH |
1858 | const char *slash; |
1859 | const char *extra_refname; | |
1860 | struct strbuf dirname = STRBUF_INIT; | |
1861 | struct strbuf referent = STRBUF_INIT; | |
1862 | struct object_id oid; | |
1863 | unsigned int type; | |
1864 | struct ref_iterator *iter; | |
1865 | int ok; | |
1866 | int ret = -1; | |
1867 | ||
1868 | /* | |
1869 | * For the sake of comments in this function, suppose that | |
1870 | * refname is "refs/foo/bar". | |
1871 | */ | |
1872 | ||
1873 | assert(err); | |
1874 | ||
1875 | strbuf_grow(&dirname, strlen(refname) + 1); | |
1876 | for (slash = strchr(refname, '/'); slash; slash = strchr(slash + 1, '/')) { | |
1877 | /* Expand dirname to the new prefix, not including the trailing slash: */ | |
1878 | strbuf_add(&dirname, refname + dirname.len, slash - refname - dirname.len); | |
1879 | ||
1880 | /* | |
1881 | * We are still at a leading dir of the refname (e.g., | |
1882 | * "refs/foo"; if there is a reference with that name, | |
1883 | * it is a conflict, *unless* it is in skip. | |
1884 | */ | |
1885 | if (skip && string_list_has_string(skip, dirname.buf)) | |
1886 | continue; | |
1887 | ||
1888 | if (!refs_read_raw_ref(refs, dirname.buf, oid.hash, &referent, &type)) { | |
1889 | strbuf_addf(err, "'%s' exists; cannot create '%s'", | |
1890 | dirname.buf, refname); | |
1891 | goto cleanup; | |
1892 | } | |
1893 | ||
1894 | if (extras && string_list_has_string(extras, dirname.buf)) { | |
1895 | strbuf_addf(err, "cannot process '%s' and '%s' at the same time", | |
1896 | refname, dirname.buf); | |
1897 | goto cleanup; | |
1898 | } | |
1899 | } | |
1900 | ||
1901 | /* | |
1902 | * We are at the leaf of our refname (e.g., "refs/foo/bar"). | |
1903 | * There is no point in searching for a reference with that | |
1904 | * name, because a refname isn't considered to conflict with | |
1905 | * itself. But we still need to check for references whose | |
1906 | * names are in the "refs/foo/bar/" namespace, because they | |
1907 | * *do* conflict. | |
1908 | */ | |
1909 | strbuf_addstr(&dirname, refname + dirname.len); | |
1910 | strbuf_addch(&dirname, '/'); | |
1911 | ||
1912 | iter = refs_ref_iterator_begin(refs, dirname.buf, 0, | |
1913 | DO_FOR_EACH_INCLUDE_BROKEN); | |
1914 | while ((ok = ref_iterator_advance(iter)) == ITER_OK) { | |
1915 | if (skip && | |
1916 | string_list_has_string(skip, iter->refname)) | |
1917 | continue; | |
1918 | ||
1919 | strbuf_addf(err, "'%s' exists; cannot create '%s'", | |
1920 | iter->refname, refname); | |
1921 | ref_iterator_abort(iter); | |
1922 | goto cleanup; | |
1923 | } | |
1924 | ||
1925 | if (ok != ITER_DONE) | |
1926 | die("BUG: error while iterating over references"); | |
1927 | ||
1928 | extra_refname = find_descendant_ref(dirname.buf, extras, skip); | |
1929 | if (extra_refname) | |
1930 | strbuf_addf(err, "cannot process '%s' and '%s' at the same time", | |
1931 | refname, extra_refname); | |
1932 | else | |
1933 | ret = 0; | |
1934 | ||
1935 | cleanup: | |
1936 | strbuf_release(&referent); | |
1937 | strbuf_release(&dirname); | |
1938 | return ret; | |
62665823 | 1939 | } |
e3688bd6 | 1940 | |
7d2df051 | 1941 | int refs_for_each_reflog(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
e3688bd6 | 1942 | { |
e3688bd6 DT |
1943 | struct ref_iterator *iter; |
1944 | ||
1945 | iter = refs->be->reflog_iterator_begin(refs); | |
1946 | ||
1947 | return do_for_each_ref_iterator(iter, fn, cb_data); | |
1948 | } | |
1949 | ||
7d2df051 | 1950 | int for_each_reflog(each_ref_fn fn, void *cb_data) |
e3688bd6 | 1951 | { |
7d2df051 NTND |
1952 | return refs_for_each_reflog(get_main_ref_store(), fn, cb_data); |
1953 | } | |
e3688bd6 | 1954 | |
7d2df051 NTND |
1955 | int refs_for_each_reflog_ent_reverse(struct ref_store *refs, |
1956 | const char *refname, | |
1957 | each_reflog_ent_fn fn, | |
1958 | void *cb_data) | |
1959 | { | |
e3688bd6 DT |
1960 | return refs->be->for_each_reflog_ent_reverse(refs, refname, |
1961 | fn, cb_data); | |
1962 | } | |
1963 | ||
7d2df051 NTND |
1964 | int for_each_reflog_ent_reverse(const char *refname, each_reflog_ent_fn fn, |
1965 | void *cb_data) | |
1966 | { | |
1967 | return refs_for_each_reflog_ent_reverse(get_main_ref_store(), | |
1968 | refname, fn, cb_data); | |
1969 | } | |
1970 | ||
1971 | int refs_for_each_reflog_ent(struct ref_store *refs, const char *refname, | |
1972 | each_reflog_ent_fn fn, void *cb_data) | |
1973 | { | |
1974 | return refs->be->for_each_reflog_ent(refs, refname, fn, cb_data); | |
1975 | } | |
1976 | ||
e3688bd6 DT |
1977 | int for_each_reflog_ent(const char *refname, each_reflog_ent_fn fn, |
1978 | void *cb_data) | |
1979 | { | |
7d2df051 NTND |
1980 | return refs_for_each_reflog_ent(get_main_ref_store(), refname, |
1981 | fn, cb_data); | |
1982 | } | |
e3688bd6 | 1983 | |
7d2df051 NTND |
1984 | int refs_reflog_exists(struct ref_store *refs, const char *refname) |
1985 | { | |
1986 | return refs->be->reflog_exists(refs, refname); | |
e3688bd6 DT |
1987 | } |
1988 | ||
1989 | int reflog_exists(const char *refname) | |
1990 | { | |
7d2df051 NTND |
1991 | return refs_reflog_exists(get_main_ref_store(), refname); |
1992 | } | |
e3688bd6 | 1993 | |
7d2df051 NTND |
1994 | int refs_create_reflog(struct ref_store *refs, const char *refname, |
1995 | int force_create, struct strbuf *err) | |
1996 | { | |
1997 | return refs->be->create_reflog(refs, refname, force_create, err); | |
e3688bd6 DT |
1998 | } |
1999 | ||
2000 | int safe_create_reflog(const char *refname, int force_create, | |
2001 | struct strbuf *err) | |
2002 | { | |
7d2df051 NTND |
2003 | return refs_create_reflog(get_main_ref_store(), refname, |
2004 | force_create, err); | |
2005 | } | |
e3688bd6 | 2006 | |
7d2df051 NTND |
2007 | int refs_delete_reflog(struct ref_store *refs, const char *refname) |
2008 | { | |
2009 | return refs->be->delete_reflog(refs, refname); | |
e3688bd6 DT |
2010 | } |
2011 | ||
2012 | int delete_reflog(const char *refname) | |
2013 | { | |
7d2df051 NTND |
2014 | return refs_delete_reflog(get_main_ref_store(), refname); |
2015 | } | |
e3688bd6 | 2016 | |
7d2df051 NTND |
2017 | int refs_reflog_expire(struct ref_store *refs, |
2018 | const char *refname, const unsigned char *sha1, | |
2019 | unsigned int flags, | |
2020 | reflog_expiry_prepare_fn prepare_fn, | |
2021 | reflog_expiry_should_prune_fn should_prune_fn, | |
2022 | reflog_expiry_cleanup_fn cleanup_fn, | |
2023 | void *policy_cb_data) | |
2024 | { | |
2025 | return refs->be->reflog_expire(refs, refname, sha1, flags, | |
2026 | prepare_fn, should_prune_fn, | |
2027 | cleanup_fn, policy_cb_data); | |
e3688bd6 DT |
2028 | } |
2029 | ||
2030 | int reflog_expire(const char *refname, const unsigned char *sha1, | |
2031 | unsigned int flags, | |
2032 | reflog_expiry_prepare_fn prepare_fn, | |
2033 | reflog_expiry_should_prune_fn should_prune_fn, | |
2034 | reflog_expiry_cleanup_fn cleanup_fn, | |
2035 | void *policy_cb_data) | |
2036 | { | |
7d2df051 NTND |
2037 | return refs_reflog_expire(get_main_ref_store(), |
2038 | refname, sha1, flags, | |
2039 | prepare_fn, should_prune_fn, | |
2040 | cleanup_fn, policy_cb_data); | |
e3688bd6 | 2041 | } |
fc681463 DT |
2042 | |
2043 | int initial_ref_transaction_commit(struct ref_transaction *transaction, | |
2044 | struct strbuf *err) | |
2045 | { | |
c0fe4e8b | 2046 | struct ref_store *refs = transaction->ref_store; |
fc681463 DT |
2047 | |
2048 | return refs->be->initial_transaction_commit(refs, transaction, err); | |
2049 | } | |
a27dcf89 | 2050 | |
64da4199 MH |
2051 | int refs_delete_refs(struct ref_store *refs, const char *msg, |
2052 | struct string_list *refnames, unsigned int flags) | |
a27dcf89 | 2053 | { |
64da4199 | 2054 | return refs->be->delete_refs(refs, msg, refnames, flags); |
a27dcf89 | 2055 | } |
9b6b40d9 | 2056 | |
64da4199 MH |
2057 | int delete_refs(const char *msg, struct string_list *refnames, |
2058 | unsigned int flags) | |
9b6b40d9 | 2059 | { |
64da4199 | 2060 | return refs_delete_refs(get_main_ref_store(), msg, refnames, flags); |
7d2df051 | 2061 | } |
9b6b40d9 | 2062 | |
7d2df051 NTND |
2063 | int refs_rename_ref(struct ref_store *refs, const char *oldref, |
2064 | const char *newref, const char *logmsg) | |
2065 | { | |
9b6b40d9 DT |
2066 | return refs->be->rename_ref(refs, oldref, newref, logmsg); |
2067 | } | |
7d2df051 NTND |
2068 | |
2069 | int rename_ref(const char *oldref, const char *newref, const char *logmsg) | |
2070 | { | |
2071 | return refs_rename_ref(get_main_ref_store(), oldref, newref, logmsg); | |
2072 | } | |
52d59cc6 SD |
2073 | |
2074 | int refs_copy_existing_ref(struct ref_store *refs, const char *oldref, | |
2075 | const char *newref, const char *logmsg) | |
2076 | { | |
2077 | return refs->be->copy_ref(refs, oldref, newref, logmsg); | |
2078 | } | |
2079 | ||
2080 | int copy_existing_ref(const char *oldref, const char *newref, const char *logmsg) | |
2081 | { | |
2082 | return refs_copy_existing_ref(get_main_ref_store(), oldref, newref, logmsg); | |
2083 | } |