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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, | |
0f2dc722 | 197 | struct object_id *oid, int *flags) |
7d2df051 NTND |
198 | { |
199 | const char *result; | |
200 | ||
201 | result = refs_resolve_ref_unsafe(refs, refname, resolve_flags, | |
0f2dc722 | 202 | oid->hash, flags); |
7d2df051 NTND |
203 | return xstrdup_or_null(result); |
204 | } | |
205 | ||
7bd9bcf3 | 206 | char *resolve_refdup(const char *refname, int resolve_flags, |
0f2dc722 | 207 | struct object_id *oid, int *flags) |
e1e22e37 | 208 | { |
7d2df051 NTND |
209 | return refs_resolve_refdup(get_main_ref_store(), |
210 | refname, resolve_flags, | |
0f2dc722 | 211 | oid, 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 | ||
ae077771 | 577 | static int write_pseudoref(const char *pseudoref, const struct object_id *oid, |
578 | const struct object_id *old_oid, struct strbuf *err) | |
74ec19d4 DT |
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 | ||
6ee18216 | 586 | if (!oid) |
587 | return 0; | |
588 | ||
ae077771 | 589 | strbuf_addf(&buf, "%s\n", oid_to_hex(oid)); |
74ec19d4 DT |
590 | |
591 | filename = git_path("%s", pseudoref); | |
4ff0f01c MH |
592 | fd = hold_lock_file_for_update_timeout(&lock, filename, |
593 | LOCK_DIE_ON_ERROR, | |
594 | get_files_ref_lock_timeout_ms()); | |
74ec19d4 | 595 | if (fd < 0) { |
0568c8e9 | 596 | strbuf_addf(err, "could not open '%s' for writing: %s", |
74ec19d4 | 597 | filename, strerror(errno)); |
aeb014f6 | 598 | goto done; |
74ec19d4 DT |
599 | } |
600 | ||
ae077771 | 601 | if (old_oid) { |
602 | struct object_id actual_old_oid; | |
2c3aed13 | 603 | |
ae077771 | 604 | if (read_ref(pseudoref, actual_old_oid.hash)) |
2c3aed13 | 605 | die("could not read ref '%s'", pseudoref); |
ae077771 | 606 | if (oidcmp(&actual_old_oid, old_oid)) { |
0568c8e9 | 607 | strbuf_addf(err, "unexpected sha1 when writing '%s'", pseudoref); |
74ec19d4 DT |
608 | rollback_lock_file(&lock); |
609 | goto done; | |
610 | } | |
611 | } | |
612 | ||
06f46f23 | 613 | if (write_in_full(fd, buf.buf, buf.len) < 0) { |
0568c8e9 | 614 | strbuf_addf(err, "could not write to '%s'", filename); |
74ec19d4 DT |
615 | rollback_lock_file(&lock); |
616 | goto done; | |
617 | } | |
618 | ||
619 | commit_lock_file(&lock); | |
620 | ret = 0; | |
621 | done: | |
622 | strbuf_release(&buf); | |
623 | return ret; | |
624 | } | |
625 | ||
2616a5e5 | 626 | static int delete_pseudoref(const char *pseudoref, const struct object_id *old_oid) |
74ec19d4 DT |
627 | { |
628 | static struct lock_file lock; | |
629 | const char *filename; | |
630 | ||
631 | filename = git_path("%s", pseudoref); | |
632 | ||
2616a5e5 | 633 | if (old_oid && !is_null_oid(old_oid)) { |
74ec19d4 | 634 | int fd; |
2616a5e5 | 635 | struct object_id actual_old_oid; |
74ec19d4 | 636 | |
4ff0f01c MH |
637 | fd = hold_lock_file_for_update_timeout( |
638 | &lock, filename, LOCK_DIE_ON_ERROR, | |
639 | get_files_ref_lock_timeout_ms()); | |
74ec19d4 DT |
640 | if (fd < 0) |
641 | die_errno(_("Could not open '%s' for writing"), filename); | |
2616a5e5 | 642 | if (read_ref(pseudoref, actual_old_oid.hash)) |
2c3aed13 | 643 | die("could not read ref '%s'", pseudoref); |
2616a5e5 | 644 | if (oidcmp(&actual_old_oid, old_oid)) { |
74ec19d4 DT |
645 | warning("Unexpected sha1 when deleting %s", pseudoref); |
646 | rollback_lock_file(&lock); | |
647 | return -1; | |
a4c653df | 648 | } |
74ec19d4 DT |
649 | |
650 | unlink(filename); | |
651 | rollback_lock_file(&lock); | |
652 | } else { | |
653 | unlink(filename); | |
4bd18c43 | 654 | } |
a4c653df | 655 | |
4bd18c43 | 656 | return 0; |
95fc7512 | 657 | } |
d556fae2 | 658 | |
c0fe4e8b NTND |
659 | int refs_delete_ref(struct ref_store *refs, const char *msg, |
660 | const char *refname, | |
2616a5e5 | 661 | const struct object_id *old_oid, |
c0fe4e8b | 662 | unsigned int flags) |
41b625b0 | 663 | { |
7521cc46 | 664 | struct ref_transaction *transaction; |
a4c653df | 665 | struct strbuf err = STRBUF_INIT; |
8b5157e4 | 666 | |
c0fe4e8b NTND |
667 | if (ref_type(refname) == REF_TYPE_PSEUDOREF) { |
668 | assert(refs == get_main_ref_store()); | |
2616a5e5 | 669 | return delete_pseudoref(refname, old_oid); |
c0fe4e8b | 670 | } |
d48744d1 | 671 | |
c0fe4e8b | 672 | transaction = ref_store_transaction_begin(refs, &err); |
7521cc46 | 673 | if (!transaction || |
89f3bbdd | 674 | ref_transaction_delete(transaction, refname, old_oid, |
755b49ae | 675 | flags, msg, &err) || |
db7516ab | 676 | ref_transaction_commit(transaction, &err)) { |
7521cc46 RS |
677 | error("%s", err.buf); |
678 | ref_transaction_free(transaction); | |
679 | strbuf_release(&err); | |
c0277d15 | 680 | return 1; |
41b625b0 | 681 | } |
7bd9bcf3 MH |
682 | ref_transaction_free(transaction); |
683 | strbuf_release(&err); | |
b531394d BC |
684 | return 0; |
685 | } | |
41b625b0 | 686 | |
c0fe4e8b | 687 | int delete_ref(const char *msg, const char *refname, |
2616a5e5 | 688 | const struct object_id *old_oid, unsigned int flags) |
c0fe4e8b NTND |
689 | { |
690 | return refs_delete_ref(get_main_ref_store(), msg, refname, | |
2616a5e5 | 691 | old_oid, flags); |
c0fe4e8b NTND |
692 | } |
693 | ||
4cb77009 | 694 | int copy_reflog_msg(char *buf, const char *msg) |
0ec29a47 JH |
695 | { |
696 | char *cp = buf; | |
697 | char c; | |
698 | int wasspace = 1; | |
8b5157e4 | 699 | |
0ec29a47 JH |
700 | *cp++ = '\t'; |
701 | while ((c = *msg++)) { | |
702 | if (wasspace && isspace(c)) | |
703 | continue; | |
704 | wasspace = isspace(c); | |
705 | if (wasspace) | |
706 | c = ' '; | |
707 | *cp++ = c; | |
a4c653df | 708 | } |
0ec29a47 JH |
709 | while (buf < cp && isspace(cp[-1])) |
710 | cp--; | |
711 | *cp++ = '\n'; | |
712 | return cp - buf; | |
713 | } | |
8b5157e4 | 714 | |
4cb77009 | 715 | int should_autocreate_reflog(const char *refname) |
4e2bef57 | 716 | { |
341fb286 CW |
717 | switch (log_all_ref_updates) { |
718 | case LOG_REFS_ALWAYS: | |
719 | return 1; | |
720 | case LOG_REFS_NORMAL: | |
721 | return starts_with(refname, "refs/heads/") || | |
722 | starts_with(refname, "refs/remotes/") || | |
723 | starts_with(refname, "refs/notes/") || | |
724 | !strcmp(refname, "HEAD"); | |
725 | default: | |
4e2bef57 | 726 | return 0; |
341fb286 | 727 | } |
4e2bef57 DT |
728 | } |
729 | ||
e7e0f26e | 730 | int is_branch(const char *refname) |
c3b0dec5 | 731 | { |
59556548 | 732 | return !strcmp(refname, "HEAD") || starts_with(refname, "refs/heads/"); |
41b625b0 NP |
733 | } |
734 | ||
4207ed28 RS |
735 | struct read_ref_at_cb { |
736 | const char *refname; | |
dddbad72 | 737 | timestamp_t at_time; |
4207ed28 RS |
738 | int cnt; |
739 | int reccnt; | |
740 | unsigned char *sha1; | |
741 | int found_it; | |
742 | ||
743 | unsigned char osha1[20]; | |
744 | unsigned char nsha1[20]; | |
745 | int tz; | |
dddbad72 | 746 | timestamp_t date; |
4207ed28 | 747 | char **msg; |
dddbad72 | 748 | timestamp_t *cutoff_time; |
4207ed28 RS |
749 | int *cutoff_tz; |
750 | int *cutoff_cnt; | |
751 | }; | |
752 | ||
9461d272 | 753 | static int read_ref_at_ent(struct object_id *ooid, struct object_id *noid, |
dddbad72 | 754 | const char *email, timestamp_t timestamp, int tz, |
4207ed28 RS |
755 | const char *message, void *cb_data) |
756 | { | |
757 | struct read_ref_at_cb *cb = cb_data; | |
758 | ||
759 | cb->reccnt++; | |
760 | cb->tz = tz; | |
761 | cb->date = timestamp; | |
762 | ||
763 | if (timestamp <= cb->at_time || cb->cnt == 0) { | |
764 | if (cb->msg) | |
765 | *cb->msg = xstrdup(message); | |
766 | if (cb->cutoff_time) | |
767 | *cb->cutoff_time = timestamp; | |
768 | if (cb->cutoff_tz) | |
769 | *cb->cutoff_tz = tz; | |
770 | if (cb->cutoff_cnt) | |
771 | *cb->cutoff_cnt = cb->reccnt - 1; | |
772 | /* | |
773 | * we have not yet updated cb->[n|o]sha1 so they still | |
774 | * hold the values for the previous record. | |
775 | */ | |
776 | if (!is_null_sha1(cb->osha1)) { | |
9461d272 | 777 | hashcpy(cb->sha1, noid->hash); |
778 | if (hashcmp(cb->osha1, noid->hash)) | |
4207ed28 | 779 | warning("Log for ref %s has gap after %s.", |
a5481a6c | 780 | cb->refname, show_date(cb->date, cb->tz, DATE_MODE(RFC2822))); |
4207ed28 RS |
781 | } |
782 | else if (cb->date == cb->at_time) | |
9461d272 | 783 | hashcpy(cb->sha1, noid->hash); |
784 | else if (hashcmp(noid->hash, cb->sha1)) | |
4207ed28 RS |
785 | warning("Log for ref %s unexpectedly ended on %s.", |
786 | cb->refname, show_date(cb->date, cb->tz, | |
a5481a6c | 787 | DATE_MODE(RFC2822))); |
9461d272 | 788 | hashcpy(cb->osha1, ooid->hash); |
789 | hashcpy(cb->nsha1, noid->hash); | |
4207ed28 RS |
790 | cb->found_it = 1; |
791 | return 1; | |
792 | } | |
9461d272 | 793 | hashcpy(cb->osha1, ooid->hash); |
794 | hashcpy(cb->nsha1, noid->hash); | |
4207ed28 RS |
795 | if (cb->cnt > 0) |
796 | cb->cnt--; | |
797 | return 0; | |
798 | } | |
799 | ||
9461d272 | 800 | static int read_ref_at_ent_oldest(struct object_id *ooid, struct object_id *noid, |
dddbad72 | 801 | const char *email, timestamp_t timestamp, |
4207ed28 RS |
802 | int tz, const char *message, void *cb_data) |
803 | { | |
804 | struct read_ref_at_cb *cb = cb_data; | |
805 | ||
806 | if (cb->msg) | |
807 | *cb->msg = xstrdup(message); | |
808 | if (cb->cutoff_time) | |
809 | *cb->cutoff_time = timestamp; | |
810 | if (cb->cutoff_tz) | |
811 | *cb->cutoff_tz = tz; | |
812 | if (cb->cutoff_cnt) | |
813 | *cb->cutoff_cnt = cb->reccnt; | |
9461d272 | 814 | hashcpy(cb->sha1, ooid->hash); |
4207ed28 | 815 | if (is_null_sha1(cb->sha1)) |
9461d272 | 816 | hashcpy(cb->sha1, noid->hash); |
4207ed28 RS |
817 | /* We just want the first entry */ |
818 | return 1; | |
16d7cc90 JH |
819 | } |
820 | ||
dddbad72 | 821 | int read_ref_at(const char *refname, unsigned int flags, timestamp_t at_time, int cnt, |
dfefa935 | 822 | unsigned char *sha1, char **msg, |
dddbad72 | 823 | timestamp_t *cutoff_time, int *cutoff_tz, int *cutoff_cnt) |
d556fae2 | 824 | { |
4207ed28 | 825 | struct read_ref_at_cb cb; |
d556fae2 | 826 | |
4207ed28 RS |
827 | memset(&cb, 0, sizeof(cb)); |
828 | cb.refname = refname; | |
829 | cb.at_time = at_time; | |
830 | cb.cnt = cnt; | |
831 | cb.msg = msg; | |
832 | cb.cutoff_time = cutoff_time; | |
833 | cb.cutoff_tz = cutoff_tz; | |
834 | cb.cutoff_cnt = cutoff_cnt; | |
835 | cb.sha1 = sha1; | |
836 | ||
837 | for_each_reflog_ent_reverse(refname, read_ref_at_ent, &cb); | |
838 | ||
c41a87dd | 839 | if (!cb.reccnt) { |
321c89bf | 840 | if (flags & GET_OID_QUIETLY) |
c41a87dd DA |
841 | exit(128); |
842 | else | |
843 | die("Log for %s is empty.", refname); | |
844 | } | |
4207ed28 RS |
845 | if (cb.found_it) |
846 | return 0; | |
847 | ||
848 | for_each_reflog_ent(refname, read_ref_at_ent_oldest, &cb); | |
d556fae2 | 849 | |
16d7cc90 | 850 | return 1; |
d556fae2 | 851 | } |
2ff81662 | 852 | |
c0fe4e8b NTND |
853 | struct ref_transaction *ref_store_transaction_begin(struct ref_store *refs, |
854 | struct strbuf *err) | |
caa4046c | 855 | { |
c0fe4e8b | 856 | struct ref_transaction *tr; |
5a603b04 JN |
857 | assert(err); |
858 | ||
c0fe4e8b NTND |
859 | tr = xcalloc(1, sizeof(struct ref_transaction)); |
860 | tr->ref_store = refs; | |
861 | return tr; | |
862 | } | |
863 | ||
864 | struct ref_transaction *ref_transaction_begin(struct strbuf *err) | |
865 | { | |
866 | return ref_store_transaction_begin(get_main_ref_store(), err); | |
caa4046c MH |
867 | } |
868 | ||
026bd1d3 | 869 | void ref_transaction_free(struct ref_transaction *transaction) |
caa4046c | 870 | { |
43a2dfde | 871 | size_t i; |
caa4046c | 872 | |
1b07255c RS |
873 | if (!transaction) |
874 | return; | |
875 | ||
30173b88 MH |
876 | switch (transaction->state) { |
877 | case REF_TRANSACTION_OPEN: | |
878 | case REF_TRANSACTION_CLOSED: | |
879 | /* OK */ | |
880 | break; | |
881 | case REF_TRANSACTION_PREPARED: | |
882 | die("BUG: free called on a prepared reference transaction"); | |
883 | break; | |
884 | default: | |
885 | die("BUG: unexpected reference transaction state"); | |
886 | break; | |
887 | } | |
888 | ||
db7516ab RS |
889 | for (i = 0; i < transaction->nr; i++) { |
890 | free(transaction->updates[i]->msg); | |
88615910 | 891 | free(transaction->updates[i]); |
db7516ab | 892 | } |
caa4046c MH |
893 | free(transaction->updates); |
894 | free(transaction); | |
895 | } | |
896 | ||
71564516 MH |
897 | struct ref_update *ref_transaction_add_update( |
898 | struct ref_transaction *transaction, | |
899 | const char *refname, unsigned int flags, | |
89f3bbdd | 900 | const struct object_id *new_oid, |
901 | const struct object_id *old_oid, | |
71564516 | 902 | const char *msg) |
caa4046c | 903 | { |
96ffc06f | 904 | struct ref_update *update; |
71564516 MH |
905 | |
906 | if (transaction->state != REF_TRANSACTION_OPEN) | |
907 | die("BUG: update called for transaction that is not open"); | |
908 | ||
909 | if ((flags & REF_ISPRUNING) && !(flags & REF_NODEREF)) | |
910 | die("BUG: REF_ISPRUNING set without REF_NODEREF"); | |
911 | ||
96ffc06f | 912 | FLEX_ALLOC_STR(update, refname, refname); |
caa4046c MH |
913 | ALLOC_GROW(transaction->updates, transaction->nr + 1, transaction->alloc); |
914 | transaction->updates[transaction->nr++] = update; | |
71564516 MH |
915 | |
916 | update->flags = flags; | |
917 | ||
918 | if (flags & REF_HAVE_NEW) | |
89f3bbdd | 919 | oidcpy(&update->new_oid, new_oid); |
71564516 | 920 | if (flags & REF_HAVE_OLD) |
89f3bbdd | 921 | oidcpy(&update->old_oid, old_oid); |
13092a91 | 922 | update->msg = xstrdup_or_null(msg); |
caa4046c MH |
923 | return update; |
924 | } | |
925 | ||
8e34800e RS |
926 | int ref_transaction_update(struct ref_transaction *transaction, |
927 | const char *refname, | |
89f3bbdd | 928 | const struct object_id *new_oid, |
929 | const struct object_id *old_oid, | |
1d147bdf | 930 | unsigned int flags, const char *msg, |
8e34800e | 931 | struct strbuf *err) |
caa4046c | 932 | { |
5a603b04 JN |
933 | assert(err); |
934 | ||
89f3bbdd | 935 | if ((new_oid && !is_null_oid(new_oid)) ? |
8a679de6 MH |
936 | check_refname_format(refname, REFNAME_ALLOW_ONELEVEL) : |
937 | !refname_is_safe(refname)) { | |
0568c8e9 | 938 | strbuf_addf(err, "refusing to update ref with bad name '%s'", |
d0f810f0 RS |
939 | refname); |
940 | return -1; | |
941 | } | |
942 | ||
c788c54c TG |
943 | flags &= REF_TRANSACTION_UPDATE_ALLOWED_FLAGS; |
944 | ||
89f3bbdd | 945 | flags |= (new_oid ? REF_HAVE_NEW : 0) | (old_oid ? REF_HAVE_OLD : 0); |
71564516 MH |
946 | |
947 | ref_transaction_add_update(transaction, refname, flags, | |
89f3bbdd | 948 | new_oid, old_oid, msg); |
8e34800e | 949 | return 0; |
caa4046c MH |
950 | } |
951 | ||
b416af5b RS |
952 | int ref_transaction_create(struct ref_transaction *transaction, |
953 | const char *refname, | |
89f3bbdd | 954 | const struct object_id *new_oid, |
fec14ec3 | 955 | unsigned int flags, const char *msg, |
b416af5b | 956 | struct strbuf *err) |
caa4046c | 957 | { |
89f3bbdd | 958 | if (!new_oid || is_null_oid(new_oid)) |
959 | die("BUG: create called without valid new_oid"); | |
960 | return ref_transaction_update(transaction, refname, new_oid, | |
961 | &null_oid, flags, msg, err); | |
caa4046c MH |
962 | } |
963 | ||
8c8bdc0d RS |
964 | int ref_transaction_delete(struct ref_transaction *transaction, |
965 | const char *refname, | |
89f3bbdd | 966 | const struct object_id *old_oid, |
fb5a6bb6 | 967 | unsigned int flags, const char *msg, |
8c8bdc0d | 968 | struct strbuf *err) |
caa4046c | 969 | { |
89f3bbdd | 970 | if (old_oid && is_null_oid(old_oid)) |
971 | die("BUG: delete called with old_oid set to zeros"); | |
1d147bdf | 972 | return ref_transaction_update(transaction, refname, |
89f3bbdd | 973 | &null_oid, old_oid, |
1d147bdf | 974 | flags, msg, err); |
caa4046c MH |
975 | } |
976 | ||
16180334 MH |
977 | int ref_transaction_verify(struct ref_transaction *transaction, |
978 | const char *refname, | |
89f3bbdd | 979 | const struct object_id *old_oid, |
16180334 MH |
980 | unsigned int flags, |
981 | struct strbuf *err) | |
982 | { | |
89f3bbdd | 983 | if (!old_oid) |
984 | die("BUG: verify called with old_oid set to NULL"); | |
16180334 | 985 | return ref_transaction_update(transaction, refname, |
89f3bbdd | 986 | NULL, old_oid, |
16180334 MH |
987 | flags, NULL, err); |
988 | } | |
989 | ||
c0fe4e8b | 990 | int refs_update_ref(struct ref_store *refs, const char *msg, |
ae077771 | 991 | const char *refname, const struct object_id *new_oid, |
992 | const struct object_id *old_oid, unsigned int flags, | |
c0fe4e8b | 993 | enum action_on_err onerr) |
4738a333 | 994 | { |
74ec19d4 | 995 | struct ref_transaction *t = NULL; |
b4d75ac1 | 996 | struct strbuf err = STRBUF_INIT; |
74ec19d4 | 997 | int ret = 0; |
b4d75ac1 | 998 | |
74ec19d4 | 999 | if (ref_type(refname) == REF_TYPE_PSEUDOREF) { |
c0fe4e8b | 1000 | assert(refs == get_main_ref_store()); |
ae077771 | 1001 | ret = write_pseudoref(refname, new_oid, old_oid, &err); |
74ec19d4 | 1002 | } else { |
c0fe4e8b | 1003 | t = ref_store_transaction_begin(refs, &err); |
74ec19d4 | 1004 | if (!t || |
89f3bbdd | 1005 | ref_transaction_update(t, refname, new_oid, old_oid, |
74ec19d4 DT |
1006 | flags, msg, &err) || |
1007 | ref_transaction_commit(t, &err)) { | |
1008 | ret = 1; | |
1009 | ref_transaction_free(t); | |
1010 | } | |
1011 | } | |
1012 | if (ret) { | |
b4d75ac1 RS |
1013 | const char *str = "update_ref failed for ref '%s': %s"; |
1014 | ||
b4d75ac1 RS |
1015 | switch (onerr) { |
1016 | case UPDATE_REFS_MSG_ON_ERR: | |
1017 | error(str, refname, err.buf); | |
1018 | break; | |
1019 | case UPDATE_REFS_DIE_ON_ERR: | |
1020 | die(str, refname, err.buf); | |
1021 | break; | |
1022 | case UPDATE_REFS_QUIET_ON_ERR: | |
1023 | break; | |
1024 | } | |
1025 | strbuf_release(&err); | |
4738a333 | 1026 | return 1; |
b4d75ac1 RS |
1027 | } |
1028 | strbuf_release(&err); | |
74ec19d4 DT |
1029 | if (t) |
1030 | ref_transaction_free(t); | |
b4d75ac1 | 1031 | return 0; |
4738a333 BK |
1032 | } |
1033 | ||
c0fe4e8b | 1034 | int update_ref(const char *msg, const char *refname, |
ae077771 | 1035 | const struct object_id *new_oid, |
1036 | const struct object_id *old_oid, | |
c0fe4e8b NTND |
1037 | unsigned int flags, enum action_on_err onerr) |
1038 | { | |
ae077771 | 1039 | return refs_update_ref(get_main_ref_store(), msg, refname, new_oid, |
1040 | old_oid, flags, onerr); | |
c0fe4e8b NTND |
1041 | } |
1042 | ||
dfefa935 | 1043 | char *shorten_unambiguous_ref(const char *refname, int strict) |
7c2b3029 JK |
1044 | { |
1045 | int i; | |
1046 | static char **scanf_fmts; | |
1047 | static int nr_rules; | |
1048 | char *short_name; | |
6cd4a898 | 1049 | struct strbuf resolved_buf = STRBUF_INIT; |
7c2b3029 | 1050 | |
7c2b3029 | 1051 | if (!nr_rules) { |
4346663a MH |
1052 | /* |
1053 | * Pre-generate scanf formats from ref_rev_parse_rules[]. | |
1054 | * Generate a format suitable for scanf from a | |
1055 | * ref_rev_parse_rules rule by interpolating "%s" at the | |
1056 | * location of the "%.*s". | |
1057 | */ | |
7c2b3029 | 1058 | size_t total_len = 0; |
84d5633f | 1059 | size_t offset = 0; |
7c2b3029 JK |
1060 | |
1061 | /* the rule list is NULL terminated, count them first */ | |
a4165851 | 1062 | for (nr_rules = 0; ref_rev_parse_rules[nr_rules]; nr_rules++) |
7902fe03 MH |
1063 | /* -2 for strlen("%.*s") - strlen("%s"); +1 for NUL */ |
1064 | total_len += strlen(ref_rev_parse_rules[nr_rules]) - 2 + 1; | |
7c2b3029 | 1065 | |
50492f7b | 1066 | scanf_fmts = xmalloc(st_add(st_mult(sizeof(char *), nr_rules), total_len)); |
7c2b3029 | 1067 | |
84d5633f | 1068 | offset = 0; |
7c2b3029 | 1069 | for (i = 0; i < nr_rules; i++) { |
4346663a | 1070 | assert(offset < total_len); |
84d5633f | 1071 | scanf_fmts[i] = (char *)&scanf_fmts[nr_rules] + offset; |
4346663a MH |
1072 | offset += snprintf(scanf_fmts[i], total_len - offset, |
1073 | ref_rev_parse_rules[i], 2, "%s") + 1; | |
7c2b3029 JK |
1074 | } |
1075 | } | |
1076 | ||
1077 | /* bail out if there are no rules */ | |
1078 | if (!nr_rules) | |
dfefa935 | 1079 | return xstrdup(refname); |
7c2b3029 | 1080 | |
dfefa935 MH |
1081 | /* buffer for scanf result, at most refname must fit */ |
1082 | short_name = xstrdup(refname); | |
7c2b3029 JK |
1083 | |
1084 | /* skip first rule, it will always match */ | |
1085 | for (i = nr_rules - 1; i > 0 ; --i) { | |
1086 | int j; | |
6e7b3309 | 1087 | int rules_to_fail = i; |
7c2b3029 JK |
1088 | int short_name_len; |
1089 | ||
dfefa935 | 1090 | if (1 != sscanf(refname, scanf_fmts[i], short_name)) |
7c2b3029 JK |
1091 | continue; |
1092 | ||
1093 | short_name_len = strlen(short_name); | |
1094 | ||
6e7b3309 BW |
1095 | /* |
1096 | * in strict mode, all (except the matched one) rules | |
1097 | * must fail to resolve to a valid non-ambiguous ref | |
1098 | */ | |
1099 | if (strict) | |
1100 | rules_to_fail = nr_rules; | |
1101 | ||
7c2b3029 JK |
1102 | /* |
1103 | * check if the short name resolves to a valid ref, | |
1104 | * but use only rules prior to the matched one | |
1105 | */ | |
6e7b3309 | 1106 | for (j = 0; j < rules_to_fail; j++) { |
7c2b3029 | 1107 | const char *rule = ref_rev_parse_rules[j]; |
7c2b3029 | 1108 | |
6e7b3309 BW |
1109 | /* skip matched rule */ |
1110 | if (i == j) | |
1111 | continue; | |
1112 | ||
7c2b3029 JK |
1113 | /* |
1114 | * the short name is ambiguous, if it resolves | |
1115 | * (with this previous rule) to a valid ref | |
1116 | * read_ref() returns 0 on success | |
1117 | */ | |
6cd4a898 JK |
1118 | strbuf_reset(&resolved_buf); |
1119 | strbuf_addf(&resolved_buf, rule, | |
1120 | short_name_len, short_name); | |
1121 | if (ref_exists(resolved_buf.buf)) | |
7c2b3029 JK |
1122 | break; |
1123 | } | |
1124 | ||
1125 | /* | |
1126 | * short name is non-ambiguous if all previous rules | |
1127 | * haven't resolved to a valid ref | |
1128 | */ | |
6cd4a898 JK |
1129 | if (j == rules_to_fail) { |
1130 | strbuf_release(&resolved_buf); | |
7c2b3029 | 1131 | return short_name; |
6cd4a898 | 1132 | } |
7c2b3029 JK |
1133 | } |
1134 | ||
6cd4a898 | 1135 | strbuf_release(&resolved_buf); |
7c2b3029 | 1136 | free(short_name); |
dfefa935 | 1137 | return xstrdup(refname); |
7c2b3029 | 1138 | } |
daebaa78 JH |
1139 | |
1140 | static struct string_list *hide_refs; | |
1141 | ||
1142 | int parse_hide_refs_config(const char *var, const char *value, const char *section) | |
1143 | { | |
ad8c7cda | 1144 | const char *key; |
daebaa78 | 1145 | if (!strcmp("transfer.hiderefs", var) || |
ad8c7cda JK |
1146 | (!parse_config_key(var, section, NULL, NULL, &key) && |
1147 | !strcmp(key, "hiderefs"))) { | |
daebaa78 JH |
1148 | char *ref; |
1149 | int len; | |
1150 | ||
1151 | if (!value) | |
1152 | return config_error_nonbool(var); | |
1153 | ref = xstrdup(value); | |
1154 | len = strlen(ref); | |
1155 | while (len && ref[len - 1] == '/') | |
1156 | ref[--len] = '\0'; | |
1157 | if (!hide_refs) { | |
1158 | hide_refs = xcalloc(1, sizeof(*hide_refs)); | |
1159 | hide_refs->strdup_strings = 1; | |
1160 | } | |
1161 | string_list_append(hide_refs, ref); | |
1162 | } | |
1163 | return 0; | |
1164 | } | |
1165 | ||
78a766ab | 1166 | int ref_is_hidden(const char *refname, const char *refname_full) |
daebaa78 | 1167 | { |
2bc31d16 | 1168 | int i; |
daebaa78 JH |
1169 | |
1170 | if (!hide_refs) | |
1171 | return 0; | |
2bc31d16 JK |
1172 | for (i = hide_refs->nr - 1; i >= 0; i--) { |
1173 | const char *match = hide_refs->items[i].string; | |
78a766ab | 1174 | const char *subject; |
2bc31d16 | 1175 | int neg = 0; |
7a40a95e | 1176 | const char *p; |
2bc31d16 JK |
1177 | |
1178 | if (*match == '!') { | |
1179 | neg = 1; | |
1180 | match++; | |
1181 | } | |
1182 | ||
78a766ab LF |
1183 | if (*match == '^') { |
1184 | subject = refname_full; | |
1185 | match++; | |
1186 | } else { | |
1187 | subject = refname; | |
1188 | } | |
1189 | ||
1190 | /* refname can be NULL when namespaces are used. */ | |
7a40a95e CC |
1191 | if (subject && |
1192 | skip_prefix(subject, match, &p) && | |
1193 | (!*p || *p == '/')) | |
2bc31d16 | 1194 | return !neg; |
daebaa78 JH |
1195 | } |
1196 | return 0; | |
1197 | } | |
fa5b1830 | 1198 | |
0845122c DT |
1199 | const char *find_descendant_ref(const char *dirname, |
1200 | const struct string_list *extras, | |
1201 | const struct string_list *skip) | |
fa5b1830 | 1202 | { |
0845122c | 1203 | int pos; |
fa5b1830 | 1204 | |
0845122c DT |
1205 | if (!extras) |
1206 | return NULL; | |
fa5b1830 MH |
1207 | |
1208 | /* | |
0845122c DT |
1209 | * Look at the place where dirname would be inserted into |
1210 | * extras. If there is an entry at that position that starts | |
1211 | * with dirname (remember, dirname includes the trailing | |
1212 | * slash) and is not in skip, then we have a conflict. | |
fa5b1830 | 1213 | */ |
0845122c DT |
1214 | for (pos = string_list_find_insert_index(extras, dirname, 0); |
1215 | pos < extras->nr; pos++) { | |
1216 | const char *extra_refname = extras->items[pos].string; | |
fa5b1830 | 1217 | |
0845122c DT |
1218 | if (!starts_with(extra_refname, dirname)) |
1219 | break; | |
1220 | ||
1221 | if (!skip || !string_list_has_string(skip, extra_refname)) | |
1222 | return extra_refname; | |
fa5b1830 | 1223 | } |
0845122c DT |
1224 | return NULL; |
1225 | } | |
fa5b1830 | 1226 | |
7d2df051 NTND |
1227 | int refs_rename_ref_available(struct ref_store *refs, |
1228 | const char *old_refname, | |
1229 | const char *new_refname) | |
0845122c DT |
1230 | { |
1231 | struct string_list skip = STRING_LIST_INIT_NODUP; | |
1232 | struct strbuf err = STRBUF_INIT; | |
ff3a299c | 1233 | int ok; |
fa5b1830 | 1234 | |
ff3a299c | 1235 | string_list_insert(&skip, old_refname); |
7d2df051 NTND |
1236 | ok = !refs_verify_refname_available(refs, new_refname, |
1237 | NULL, &skip, &err); | |
ff3a299c | 1238 | if (!ok) |
0845122c DT |
1239 | error("%s", err.buf); |
1240 | ||
1241 | string_list_clear(&skip, 0); | |
1242 | strbuf_release(&err); | |
ff3a299c | 1243 | return ok; |
fa5b1830 | 1244 | } |
2bf68ed5 | 1245 | |
62f0b399 | 1246 | int refs_head_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
2bf68ed5 DT |
1247 | { |
1248 | struct object_id oid; | |
1249 | int flag; | |
1250 | ||
62f0b399 NTND |
1251 | if (!refs_read_ref_full(refs, "HEAD", RESOLVE_REF_READING, |
1252 | oid.hash, &flag)) | |
2bf68ed5 DT |
1253 | return fn("HEAD", &oid, flag, cb_data); |
1254 | ||
1255 | return 0; | |
1256 | } | |
1257 | ||
1258 | int head_ref(each_ref_fn fn, void *cb_data) | |
1259 | { | |
62f0b399 | 1260 | return refs_head_ref(get_main_ref_store(), fn, cb_data); |
2bf68ed5 | 1261 | } |
93770590 | 1262 | |
e121b9cb MH |
1263 | struct ref_iterator *refs_ref_iterator_begin( |
1264 | struct ref_store *refs, | |
1265 | const char *prefix, int trim, int flags) | |
1266 | { | |
1267 | struct ref_iterator *iter; | |
1268 | ||
0a0865b8 MH |
1269 | if (ref_paranoia < 0) |
1270 | ref_paranoia = git_env_bool("GIT_REF_PARANOIA", 0); | |
1271 | if (ref_paranoia) | |
1272 | flags |= DO_FOR_EACH_INCLUDE_BROKEN; | |
1273 | ||
e121b9cb | 1274 | iter = refs->be->iterator_begin(refs, prefix, flags); |
c7599718 MH |
1275 | |
1276 | /* | |
1277 | * `iterator_begin()` already takes care of prefix, but we | |
1278 | * might need to do some trimming: | |
1279 | */ | |
1280 | if (trim) | |
1281 | iter = prefix_ref_iterator_begin(iter, "", trim); | |
e121b9cb | 1282 | |
8738a8a4 MH |
1283 | /* Sanity check for subclasses: */ |
1284 | if (!iter->ordered) | |
1285 | BUG("reference iterator is not ordered"); | |
1286 | ||
e121b9cb MH |
1287 | return iter; |
1288 | } | |
1289 | ||
4c4de895 MH |
1290 | /* |
1291 | * Call fn for each reference in the specified submodule for which the | |
1292 | * refname begins with prefix. If trim is non-zero, then trim that | |
1293 | * many characters off the beginning of each refname before passing | |
1294 | * the refname to fn. flags can be DO_FOR_EACH_INCLUDE_BROKEN to | |
1295 | * include broken references in the iteration. If fn ever returns a | |
1296 | * non-zero value, stop the iteration and return that value; | |
1297 | * otherwise, return 0. | |
1298 | */ | |
7d2df051 | 1299 | static int do_for_each_ref(struct ref_store *refs, const char *prefix, |
4c4de895 MH |
1300 | each_ref_fn fn, int trim, int flags, void *cb_data) |
1301 | { | |
1302 | struct ref_iterator *iter; | |
1303 | ||
00eebe35 MH |
1304 | if (!refs) |
1305 | return 0; | |
1306 | ||
e121b9cb | 1307 | iter = refs_ref_iterator_begin(refs, prefix, trim, flags); |
4c4de895 MH |
1308 | |
1309 | return do_for_each_ref_iterator(iter, fn, cb_data); | |
1310 | } | |
1311 | ||
7d2df051 NTND |
1312 | int refs_for_each_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
1313 | { | |
1314 | return do_for_each_ref(refs, "", fn, 0, 0, cb_data); | |
1315 | } | |
1316 | ||
93770590 DT |
1317 | int for_each_ref(each_ref_fn fn, void *cb_data) |
1318 | { | |
7d2df051 | 1319 | return refs_for_each_ref(get_main_ref_store(), fn, cb_data); |
93770590 DT |
1320 | } |
1321 | ||
7d2df051 NTND |
1322 | int refs_for_each_ref_in(struct ref_store *refs, const char *prefix, |
1323 | each_ref_fn fn, void *cb_data) | |
1324 | { | |
1325 | return do_for_each_ref(refs, prefix, fn, strlen(prefix), 0, cb_data); | |
93770590 DT |
1326 | } |
1327 | ||
1328 | int for_each_ref_in(const char *prefix, each_ref_fn fn, void *cb_data) | |
1329 | { | |
7d2df051 | 1330 | return refs_for_each_ref_in(get_main_ref_store(), prefix, fn, cb_data); |
93770590 DT |
1331 | } |
1332 | ||
1333 | int for_each_fullref_in(const char *prefix, each_ref_fn fn, void *cb_data, unsigned int broken) | |
1334 | { | |
1335 | unsigned int flag = 0; | |
1336 | ||
1337 | if (broken) | |
1338 | flag = DO_FOR_EACH_INCLUDE_BROKEN; | |
7d2df051 NTND |
1339 | return do_for_each_ref(get_main_ref_store(), |
1340 | prefix, fn, 0, flag, cb_data); | |
93770590 DT |
1341 | } |
1342 | ||
073cf63c NTND |
1343 | int refs_for_each_fullref_in(struct ref_store *refs, const char *prefix, |
1344 | each_ref_fn fn, void *cb_data, | |
1345 | unsigned int broken) | |
03df567f MH |
1346 | { |
1347 | unsigned int flag = 0; | |
1348 | ||
1349 | if (broken) | |
1350 | flag = DO_FOR_EACH_INCLUDE_BROKEN; | |
073cf63c | 1351 | return do_for_each_ref(refs, prefix, fn, 0, flag, cb_data); |
03df567f MH |
1352 | } |
1353 | ||
93770590 DT |
1354 | int for_each_replace_ref(each_ref_fn fn, void *cb_data) |
1355 | { | |
7d2df051 NTND |
1356 | return do_for_each_ref(get_main_ref_store(), |
1357 | git_replace_ref_base, fn, | |
1358 | strlen(git_replace_ref_base), | |
006f3f28 | 1359 | DO_FOR_EACH_INCLUDE_BROKEN, cb_data); |
93770590 DT |
1360 | } |
1361 | ||
1362 | int for_each_namespaced_ref(each_ref_fn fn, void *cb_data) | |
1363 | { | |
1364 | struct strbuf buf = STRBUF_INIT; | |
1365 | int ret; | |
1366 | strbuf_addf(&buf, "%srefs/", get_git_namespace()); | |
7d2df051 NTND |
1367 | ret = do_for_each_ref(get_main_ref_store(), |
1368 | buf.buf, fn, 0, 0, cb_data); | |
93770590 DT |
1369 | strbuf_release(&buf); |
1370 | return ret; | |
1371 | } | |
1372 | ||
7d2df051 | 1373 | int refs_for_each_rawref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
93770590 | 1374 | { |
7d2df051 | 1375 | return do_for_each_ref(refs, "", fn, 0, |
93770590 DT |
1376 | DO_FOR_EACH_INCLUDE_BROKEN, cb_data); |
1377 | } | |
2d0663b2 | 1378 | |
7d2df051 NTND |
1379 | int for_each_rawref(each_ref_fn fn, void *cb_data) |
1380 | { | |
1381 | return refs_for_each_rawref(get_main_ref_store(), fn, cb_data); | |
1382 | } | |
1383 | ||
470be518 MH |
1384 | int refs_read_raw_ref(struct ref_store *ref_store, |
1385 | const char *refname, unsigned char *sha1, | |
1386 | struct strbuf *referent, unsigned int *type) | |
1387 | { | |
1388 | return ref_store->be->read_raw_ref(ref_store, refname, sha1, referent, type); | |
1389 | } | |
1390 | ||
2d0663b2 | 1391 | /* This function needs to return a meaningful errno on failure */ |
7d2df051 | 1392 | const char *refs_resolve_ref_unsafe(struct ref_store *refs, |
3c0cb0cb MH |
1393 | const char *refname, |
1394 | int resolve_flags, | |
1395 | unsigned char *sha1, int *flags) | |
2d0663b2 DT |
1396 | { |
1397 | static struct strbuf sb_refname = STRBUF_INIT; | |
54fad661 | 1398 | struct object_id unused_oid; |
2d0663b2 DT |
1399 | int unused_flags; |
1400 | int symref_count; | |
1401 | ||
54fad661 RS |
1402 | if (!sha1) |
1403 | sha1 = unused_oid.hash; | |
2d0663b2 DT |
1404 | if (!flags) |
1405 | flags = &unused_flags; | |
1406 | ||
1407 | *flags = 0; | |
1408 | ||
1409 | if (check_refname_format(refname, REFNAME_ALLOW_ONELEVEL)) { | |
1410 | if (!(resolve_flags & RESOLVE_REF_ALLOW_BAD_NAME) || | |
1411 | !refname_is_safe(refname)) { | |
1412 | errno = EINVAL; | |
1413 | return NULL; | |
1414 | } | |
1415 | ||
1416 | /* | |
1417 | * dwim_ref() uses REF_ISBROKEN to distinguish between | |
1418 | * missing refs and refs that were present but invalid, | |
1419 | * to complain about the latter to stderr. | |
1420 | * | |
1421 | * We don't know whether the ref exists, so don't set | |
1422 | * REF_ISBROKEN yet. | |
1423 | */ | |
1424 | *flags |= REF_BAD_NAME; | |
1425 | } | |
1426 | ||
1427 | for (symref_count = 0; symref_count < SYMREF_MAXDEPTH; symref_count++) { | |
1428 | unsigned int read_flags = 0; | |
1429 | ||
470be518 MH |
1430 | if (refs_read_raw_ref(refs, refname, |
1431 | sha1, &sb_refname, &read_flags)) { | |
2d0663b2 | 1432 | *flags |= read_flags; |
a1c1d817 JK |
1433 | |
1434 | /* In reading mode, refs must eventually resolve */ | |
1435 | if (resolve_flags & RESOLVE_REF_READING) | |
1436 | return NULL; | |
1437 | ||
1438 | /* | |
1439 | * Otherwise a missing ref is OK. But the files backend | |
1440 | * may show errors besides ENOENT if there are | |
1441 | * similarly-named refs. | |
1442 | */ | |
1443 | if (errno != ENOENT && | |
1444 | errno != EISDIR && | |
1445 | errno != ENOTDIR) | |
2d0663b2 | 1446 | return NULL; |
a1c1d817 | 1447 | |
2d0663b2 DT |
1448 | hashclr(sha1); |
1449 | if (*flags & REF_BAD_NAME) | |
1450 | *flags |= REF_ISBROKEN; | |
1451 | return refname; | |
1452 | } | |
1453 | ||
1454 | *flags |= read_flags; | |
1455 | ||
1456 | if (!(read_flags & REF_ISSYMREF)) { | |
1457 | if (*flags & REF_BAD_NAME) { | |
1458 | hashclr(sha1); | |
1459 | *flags |= REF_ISBROKEN; | |
1460 | } | |
1461 | return refname; | |
1462 | } | |
1463 | ||
1464 | refname = sb_refname.buf; | |
1465 | if (resolve_flags & RESOLVE_REF_NO_RECURSE) { | |
1466 | hashclr(sha1); | |
1467 | return refname; | |
1468 | } | |
1469 | if (check_refname_format(refname, REFNAME_ALLOW_ONELEVEL)) { | |
1470 | if (!(resolve_flags & RESOLVE_REF_ALLOW_BAD_NAME) || | |
1471 | !refname_is_safe(refname)) { | |
1472 | errno = EINVAL; | |
1473 | return NULL; | |
1474 | } | |
1475 | ||
1476 | *flags |= REF_ISBROKEN | REF_BAD_NAME; | |
1477 | } | |
1478 | } | |
1479 | ||
1480 | errno = ELOOP; | |
1481 | return NULL; | |
1482 | } | |
00eebe35 | 1483 | |
6fb5acfd DT |
1484 | /* backend functions */ |
1485 | int refs_init_db(struct strbuf *err) | |
1486 | { | |
077be78d | 1487 | struct ref_store *refs = get_main_ref_store(); |
6fb5acfd DT |
1488 | |
1489 | return refs->be->init_db(refs, err); | |
1490 | } | |
1491 | ||
bd40dcda MH |
1492 | const char *resolve_ref_unsafe(const char *refname, int resolve_flags, |
1493 | unsigned char *sha1, int *flags) | |
1494 | { | |
7d2df051 | 1495 | return refs_resolve_ref_unsafe(get_main_ref_store(), refname, |
bd40dcda MH |
1496 | resolve_flags, sha1, flags); |
1497 | } | |
1498 | ||
a8355bb7 MH |
1499 | int resolve_gitlink_ref(const char *submodule, const char *refname, |
1500 | unsigned char *sha1) | |
424dcc76 | 1501 | { |
424dcc76 MH |
1502 | struct ref_store *refs; |
1503 | int flags; | |
1504 | ||
29babbee | 1505 | refs = get_submodule_ref_store(submodule); |
48a8475f | 1506 | |
424dcc76 MH |
1507 | if (!refs) |
1508 | return -1; | |
1509 | ||
7d2df051 | 1510 | if (!refs_resolve_ref_unsafe(refs, refname, 0, sha1, &flags) || |
424dcc76 MH |
1511 | is_null_sha1(sha1)) |
1512 | return -1; | |
1513 | return 0; | |
1514 | } | |
1515 | ||
0c064d90 | 1516 | struct ref_store_hash_entry |
7d4558c4 MH |
1517 | { |
1518 | struct hashmap_entry ent; /* must be the first member! */ | |
1519 | ||
1520 | struct ref_store *refs; | |
1521 | ||
0c064d90 NTND |
1522 | /* NUL-terminated identifier of the ref store: */ |
1523 | char name[FLEX_ARRAY]; | |
7d4558c4 MH |
1524 | }; |
1525 | ||
7663cdc8 SB |
1526 | static int ref_store_hash_cmp(const void *unused_cmp_data, |
1527 | const void *entry, const void *entry_or_key, | |
7d4558c4 MH |
1528 | const void *keydata) |
1529 | { | |
0c064d90 NTND |
1530 | const struct ref_store_hash_entry *e1 = entry, *e2 = entry_or_key; |
1531 | const char *name = keydata ? keydata : e2->name; | |
7d4558c4 | 1532 | |
0c064d90 | 1533 | return strcmp(e1->name, name); |
7d4558c4 MH |
1534 | } |
1535 | ||
0c064d90 NTND |
1536 | static struct ref_store_hash_entry *alloc_ref_store_hash_entry( |
1537 | const char *name, struct ref_store *refs) | |
7d4558c4 | 1538 | { |
0c064d90 | 1539 | struct ref_store_hash_entry *entry; |
7d4558c4 | 1540 | |
0c064d90 NTND |
1541 | FLEX_ALLOC_STR(entry, name, name); |
1542 | hashmap_entry_init(entry, strhash(name)); | |
7d4558c4 MH |
1543 | entry->refs = refs; |
1544 | return entry; | |
1545 | } | |
1546 | ||
00eebe35 MH |
1547 | /* A pointer to the ref_store for the main repository: */ |
1548 | static struct ref_store *main_ref_store; | |
1549 | ||
7d4558c4 MH |
1550 | /* A hashmap of ref_stores, stored by submodule name: */ |
1551 | static struct hashmap submodule_ref_stores; | |
00eebe35 | 1552 | |
17eff96b NTND |
1553 | /* A hashmap of ref_stores, stored by worktree id: */ |
1554 | static struct hashmap worktree_ref_stores; | |
1555 | ||
c468da4e | 1556 | /* |
0c064d90 NTND |
1557 | * Look up a ref store by name. If that ref_store hasn't been |
1558 | * registered yet, return NULL. | |
c468da4e | 1559 | */ |
0c064d90 NTND |
1560 | static struct ref_store *lookup_ref_store_map(struct hashmap *map, |
1561 | const char *name) | |
00eebe35 | 1562 | { |
0c064d90 | 1563 | struct ref_store_hash_entry *entry; |
00eebe35 | 1564 | |
0c064d90 | 1565 | if (!map->tablesize) |
7d4558c4 MH |
1566 | /* It's initialized on demand in register_ref_store(). */ |
1567 | return NULL; | |
620a66b9 | 1568 | |
0c064d90 | 1569 | entry = hashmap_get_from_hash(map, strhash(name), name); |
7d4558c4 | 1570 | return entry ? entry->refs : NULL; |
00eebe35 MH |
1571 | } |
1572 | ||
c468da4e MH |
1573 | /* |
1574 | * Create, record, and return a ref_store instance for the specified | |
5d0bc90e | 1575 | * gitdir. |
c468da4e | 1576 | */ |
9e7ec634 NTND |
1577 | static struct ref_store *ref_store_init(const char *gitdir, |
1578 | unsigned int flags) | |
00eebe35 MH |
1579 | { |
1580 | const char *be_name = "files"; | |
1581 | struct ref_storage_be *be = find_ref_storage_backend(be_name); | |
ba88add5 | 1582 | struct ref_store *refs; |
00eebe35 MH |
1583 | |
1584 | if (!be) | |
1585 | die("BUG: reference backend %s is unknown", be_name); | |
1586 | ||
9e7ec634 | 1587 | refs = be->init(gitdir, flags); |
ba88add5 | 1588 | return refs; |
00eebe35 MH |
1589 | } |
1590 | ||
077be78d | 1591 | struct ref_store *get_main_ref_store(void) |
24c8407e NTND |
1592 | { |
1593 | if (main_ref_store) | |
1594 | return main_ref_store; | |
1595 | ||
0d8a814d | 1596 | main_ref_store = ref_store_init(get_git_dir(), REF_STORE_ALL_CAPS); |
378dc910 NTND |
1597 | return main_ref_store; |
1598 | } | |
1599 | ||
1600 | /* | |
0c064d90 NTND |
1601 | * Associate a ref store with a name. It is a fatal error to call this |
1602 | * function twice for the same name. | |
378dc910 | 1603 | */ |
0c064d90 NTND |
1604 | static void register_ref_store_map(struct hashmap *map, |
1605 | const char *type, | |
1606 | struct ref_store *refs, | |
1607 | const char *name) | |
378dc910 | 1608 | { |
0c064d90 | 1609 | if (!map->tablesize) |
7663cdc8 | 1610 | hashmap_init(map, ref_store_hash_cmp, NULL, 0); |
378dc910 | 1611 | |
0c064d90 NTND |
1612 | if (hashmap_put(map, alloc_ref_store_hash_entry(name, refs))) |
1613 | die("BUG: %s ref_store '%s' initialized twice", type, name); | |
24c8407e NTND |
1614 | } |
1615 | ||
18d0002d | 1616 | struct ref_store *get_submodule_ref_store(const char *submodule) |
00eebe35 | 1617 | { |
126c9e05 | 1618 | struct strbuf submodule_sb = STRBUF_INIT; |
00eebe35 | 1619 | struct ref_store *refs; |
29babbee NTND |
1620 | char *to_free = NULL; |
1621 | size_t len; | |
00eebe35 | 1622 | |
82a150f2 NTND |
1623 | if (!submodule) |
1624 | return NULL; | |
1625 | ||
873ea90d NTND |
1626 | len = strlen(submodule); |
1627 | while (len && is_dir_sep(submodule[len - 1])) | |
1628 | len--; | |
1629 | if (!len) | |
1630 | return NULL; | |
00eebe35 | 1631 | |
29babbee NTND |
1632 | if (submodule[len]) |
1633 | /* We need to strip off one or more trailing slashes */ | |
1634 | submodule = to_free = xmemdupz(submodule, len); | |
00eebe35 | 1635 | |
0c064d90 | 1636 | refs = lookup_ref_store_map(&submodule_ref_stores, submodule); |
126c9e05 | 1637 | if (refs) |
2c616c17 | 1638 | goto done; |
00eebe35 | 1639 | |
126c9e05 | 1640 | strbuf_addstr(&submodule_sb, submodule); |
2c616c17 NTND |
1641 | if (!is_nonbare_repository_dir(&submodule_sb)) |
1642 | goto done; | |
00eebe35 | 1643 | |
2c616c17 NTND |
1644 | if (submodule_to_gitdir(&submodule_sb, submodule)) |
1645 | goto done; | |
00eebe35 | 1646 | |
9e7ec634 NTND |
1647 | /* assume that add_submodule_odb() has been called */ |
1648 | refs = ref_store_init(submodule_sb.buf, | |
1649 | REF_STORE_READ | REF_STORE_ODB); | |
0c064d90 NTND |
1650 | register_ref_store_map(&submodule_ref_stores, "submodule", |
1651 | refs, submodule); | |
5d0bc90e | 1652 | |
2c616c17 | 1653 | done: |
5d0bc90e | 1654 | strbuf_release(&submodule_sb); |
29babbee NTND |
1655 | free(to_free); |
1656 | ||
00eebe35 MH |
1657 | return refs; |
1658 | } | |
1659 | ||
17eff96b NTND |
1660 | struct ref_store *get_worktree_ref_store(const struct worktree *wt) |
1661 | { | |
1662 | struct ref_store *refs; | |
1663 | const char *id; | |
1664 | ||
1665 | if (wt->is_current) | |
1666 | return get_main_ref_store(); | |
1667 | ||
1668 | id = wt->id ? wt->id : "/"; | |
1669 | refs = lookup_ref_store_map(&worktree_ref_stores, id); | |
1670 | if (refs) | |
1671 | return refs; | |
1672 | ||
1673 | if (wt->id) | |
1674 | refs = ref_store_init(git_common_path("worktrees/%s", wt->id), | |
1675 | REF_STORE_ALL_CAPS); | |
1676 | else | |
1677 | refs = ref_store_init(get_git_common_dir(), | |
1678 | REF_STORE_ALL_CAPS); | |
1679 | ||
1680 | if (refs) | |
1681 | register_ref_store_map(&worktree_ref_stores, "worktree", | |
1682 | refs, id); | |
1683 | return refs; | |
1684 | } | |
1685 | ||
620a66b9 | 1686 | void base_ref_store_init(struct ref_store *refs, |
fbfd0a29 | 1687 | const struct ref_storage_be *be) |
00eebe35 | 1688 | { |
620a66b9 | 1689 | refs->be = be; |
00eebe35 | 1690 | } |
127b42a1 RS |
1691 | |
1692 | /* backend functions */ | |
7d2df051 | 1693 | int refs_pack_refs(struct ref_store *refs, unsigned int flags) |
8231527e | 1694 | { |
8231527e MH |
1695 | return refs->be->pack_refs(refs, flags); |
1696 | } | |
1697 | ||
7d2df051 NTND |
1698 | int refs_peel_ref(struct ref_store *refs, const char *refname, |
1699 | unsigned char *sha1) | |
1700 | { | |
ba1c052f MH |
1701 | int flag; |
1702 | unsigned char base[20]; | |
1703 | ||
1704 | if (current_ref_iter && current_ref_iter->refname == refname) { | |
1705 | struct object_id peeled; | |
1706 | ||
1707 | if (ref_iterator_peel(current_ref_iter, &peeled)) | |
1708 | return -1; | |
1709 | hashcpy(sha1, peeled.hash); | |
1710 | return 0; | |
1711 | } | |
1712 | ||
1713 | if (refs_read_ref_full(refs, refname, | |
1714 | RESOLVE_REF_READING, base, &flag)) | |
1715 | return -1; | |
1716 | ||
1717 | return peel_object(base, sha1); | |
8231527e MH |
1718 | } |
1719 | ||
bd427cf2 MH |
1720 | int peel_ref(const char *refname, unsigned char *sha1) |
1721 | { | |
7d2df051 NTND |
1722 | return refs_peel_ref(get_main_ref_store(), refname, sha1); |
1723 | } | |
bd427cf2 | 1724 | |
7d2df051 NTND |
1725 | int refs_create_symref(struct ref_store *refs, |
1726 | const char *ref_target, | |
1727 | const char *refs_heads_master, | |
1728 | const char *logmsg) | |
1729 | { | |
1730 | return refs->be->create_symref(refs, ref_target, | |
1731 | refs_heads_master, | |
1732 | logmsg); | |
bd427cf2 MH |
1733 | } |
1734 | ||
284689ba MH |
1735 | int create_symref(const char *ref_target, const char *refs_heads_master, |
1736 | const char *logmsg) | |
1737 | { | |
7d2df051 NTND |
1738 | return refs_create_symref(get_main_ref_store(), ref_target, |
1739 | refs_heads_master, logmsg); | |
284689ba MH |
1740 | } |
1741 | ||
2ced105c MH |
1742 | int ref_update_reject_duplicates(struct string_list *refnames, |
1743 | struct strbuf *err) | |
1744 | { | |
a552e50e | 1745 | size_t i, n = refnames->nr; |
2ced105c MH |
1746 | |
1747 | assert(err); | |
1748 | ||
8556f8d6 MH |
1749 | for (i = 1; i < n; i++) { |
1750 | int cmp = strcmp(refnames->items[i - 1].string, | |
1751 | refnames->items[i].string); | |
1752 | ||
1753 | if (!cmp) { | |
2ced105c MH |
1754 | strbuf_addf(err, |
1755 | "multiple updates for ref '%s' not allowed.", | |
1756 | refnames->items[i].string); | |
1757 | return 1; | |
8556f8d6 MH |
1758 | } else if (cmp > 0) { |
1759 | die("BUG: ref_update_reject_duplicates() received unsorted list"); | |
2ced105c | 1760 | } |
8556f8d6 | 1761 | } |
2ced105c MH |
1762 | return 0; |
1763 | } | |
1764 | ||
30173b88 MH |
1765 | int ref_transaction_prepare(struct ref_transaction *transaction, |
1766 | struct strbuf *err) | |
127b42a1 | 1767 | { |
c0fe4e8b | 1768 | struct ref_store *refs = transaction->ref_store; |
127b42a1 | 1769 | |
8d4240d3 MH |
1770 | switch (transaction->state) { |
1771 | case REF_TRANSACTION_OPEN: | |
1772 | /* Good. */ | |
1773 | break; | |
30173b88 MH |
1774 | case REF_TRANSACTION_PREPARED: |
1775 | die("BUG: prepare called twice on reference transaction"); | |
1776 | break; | |
8d4240d3 MH |
1777 | case REF_TRANSACTION_CLOSED: |
1778 | die("BUG: prepare called on a closed reference transaction"); | |
1779 | break; | |
1780 | default: | |
1781 | die("BUG: unexpected reference transaction state"); | |
1782 | break; | |
1783 | } | |
1784 | ||
d8f4481c JK |
1785 | if (getenv(GIT_QUARANTINE_ENVIRONMENT)) { |
1786 | strbuf_addstr(err, | |
1787 | _("ref updates forbidden inside quarantine environment")); | |
1788 | return -1; | |
1789 | } | |
1790 | ||
30173b88 MH |
1791 | return refs->be->transaction_prepare(refs, transaction, err); |
1792 | } | |
1793 | ||
1794 | int ref_transaction_abort(struct ref_transaction *transaction, | |
1795 | struct strbuf *err) | |
1796 | { | |
1797 | struct ref_store *refs = transaction->ref_store; | |
1798 | int ret = 0; | |
1799 | ||
1800 | switch (transaction->state) { | |
1801 | case REF_TRANSACTION_OPEN: | |
1802 | /* No need to abort explicitly. */ | |
1803 | break; | |
1804 | case REF_TRANSACTION_PREPARED: | |
1805 | ret = refs->be->transaction_abort(refs, transaction, err); | |
1806 | break; | |
1807 | case REF_TRANSACTION_CLOSED: | |
1808 | die("BUG: abort called on a closed reference transaction"); | |
1809 | break; | |
1810 | default: | |
1811 | die("BUG: unexpected reference transaction state"); | |
1812 | break; | |
1813 | } | |
1814 | ||
1815 | ref_transaction_free(transaction); | |
1816 | return ret; | |
1817 | } | |
1818 | ||
1819 | int ref_transaction_commit(struct ref_transaction *transaction, | |
1820 | struct strbuf *err) | |
1821 | { | |
1822 | struct ref_store *refs = transaction->ref_store; | |
1823 | int ret; | |
1824 | ||
1825 | switch (transaction->state) { | |
1826 | case REF_TRANSACTION_OPEN: | |
1827 | /* Need to prepare first. */ | |
1828 | ret = ref_transaction_prepare(transaction, err); | |
1829 | if (ret) | |
1830 | return ret; | |
1831 | break; | |
1832 | case REF_TRANSACTION_PREPARED: | |
1833 | /* Fall through to finish. */ | |
1834 | break; | |
1835 | case REF_TRANSACTION_CLOSED: | |
1836 | die("BUG: commit called on a closed reference transaction"); | |
1837 | break; | |
1838 | default: | |
1839 | die("BUG: unexpected reference transaction state"); | |
1840 | break; | |
1841 | } | |
1842 | ||
1843 | return refs->be->transaction_finish(refs, transaction, err); | |
127b42a1 | 1844 | } |
62665823 | 1845 | |
7d2df051 NTND |
1846 | int refs_verify_refname_available(struct ref_store *refs, |
1847 | const char *refname, | |
b05855b5 | 1848 | const struct string_list *extras, |
7d2df051 NTND |
1849 | const struct string_list *skip, |
1850 | struct strbuf *err) | |
62665823 | 1851 | { |
b05855b5 MH |
1852 | const char *slash; |
1853 | const char *extra_refname; | |
1854 | struct strbuf dirname = STRBUF_INIT; | |
1855 | struct strbuf referent = STRBUF_INIT; | |
1856 | struct object_id oid; | |
1857 | unsigned int type; | |
1858 | struct ref_iterator *iter; | |
1859 | int ok; | |
1860 | int ret = -1; | |
1861 | ||
1862 | /* | |
1863 | * For the sake of comments in this function, suppose that | |
1864 | * refname is "refs/foo/bar". | |
1865 | */ | |
1866 | ||
1867 | assert(err); | |
1868 | ||
1869 | strbuf_grow(&dirname, strlen(refname) + 1); | |
1870 | for (slash = strchr(refname, '/'); slash; slash = strchr(slash + 1, '/')) { | |
1871 | /* Expand dirname to the new prefix, not including the trailing slash: */ | |
1872 | strbuf_add(&dirname, refname + dirname.len, slash - refname - dirname.len); | |
1873 | ||
1874 | /* | |
1875 | * We are still at a leading dir of the refname (e.g., | |
1876 | * "refs/foo"; if there is a reference with that name, | |
1877 | * it is a conflict, *unless* it is in skip. | |
1878 | */ | |
1879 | if (skip && string_list_has_string(skip, dirname.buf)) | |
1880 | continue; | |
1881 | ||
1882 | if (!refs_read_raw_ref(refs, dirname.buf, oid.hash, &referent, &type)) { | |
1883 | strbuf_addf(err, "'%s' exists; cannot create '%s'", | |
1884 | dirname.buf, refname); | |
1885 | goto cleanup; | |
1886 | } | |
1887 | ||
1888 | if (extras && string_list_has_string(extras, dirname.buf)) { | |
1889 | strbuf_addf(err, "cannot process '%s' and '%s' at the same time", | |
1890 | refname, dirname.buf); | |
1891 | goto cleanup; | |
1892 | } | |
1893 | } | |
1894 | ||
1895 | /* | |
1896 | * We are at the leaf of our refname (e.g., "refs/foo/bar"). | |
1897 | * There is no point in searching for a reference with that | |
1898 | * name, because a refname isn't considered to conflict with | |
1899 | * itself. But we still need to check for references whose | |
1900 | * names are in the "refs/foo/bar/" namespace, because they | |
1901 | * *do* conflict. | |
1902 | */ | |
1903 | strbuf_addstr(&dirname, refname + dirname.len); | |
1904 | strbuf_addch(&dirname, '/'); | |
1905 | ||
1906 | iter = refs_ref_iterator_begin(refs, dirname.buf, 0, | |
1907 | DO_FOR_EACH_INCLUDE_BROKEN); | |
1908 | while ((ok = ref_iterator_advance(iter)) == ITER_OK) { | |
1909 | if (skip && | |
1910 | string_list_has_string(skip, iter->refname)) | |
1911 | continue; | |
1912 | ||
1913 | strbuf_addf(err, "'%s' exists; cannot create '%s'", | |
1914 | iter->refname, refname); | |
1915 | ref_iterator_abort(iter); | |
1916 | goto cleanup; | |
1917 | } | |
1918 | ||
1919 | if (ok != ITER_DONE) | |
1920 | die("BUG: error while iterating over references"); | |
1921 | ||
1922 | extra_refname = find_descendant_ref(dirname.buf, extras, skip); | |
1923 | if (extra_refname) | |
1924 | strbuf_addf(err, "cannot process '%s' and '%s' at the same time", | |
1925 | refname, extra_refname); | |
1926 | else | |
1927 | ret = 0; | |
1928 | ||
1929 | cleanup: | |
1930 | strbuf_release(&referent); | |
1931 | strbuf_release(&dirname); | |
1932 | return ret; | |
62665823 | 1933 | } |
e3688bd6 | 1934 | |
7d2df051 | 1935 | int refs_for_each_reflog(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
e3688bd6 | 1936 | { |
e3688bd6 DT |
1937 | struct ref_iterator *iter; |
1938 | ||
1939 | iter = refs->be->reflog_iterator_begin(refs); | |
1940 | ||
1941 | return do_for_each_ref_iterator(iter, fn, cb_data); | |
1942 | } | |
1943 | ||
7d2df051 | 1944 | int for_each_reflog(each_ref_fn fn, void *cb_data) |
e3688bd6 | 1945 | { |
7d2df051 NTND |
1946 | return refs_for_each_reflog(get_main_ref_store(), fn, cb_data); |
1947 | } | |
e3688bd6 | 1948 | |
7d2df051 NTND |
1949 | int refs_for_each_reflog_ent_reverse(struct ref_store *refs, |
1950 | const char *refname, | |
1951 | each_reflog_ent_fn fn, | |
1952 | void *cb_data) | |
1953 | { | |
e3688bd6 DT |
1954 | return refs->be->for_each_reflog_ent_reverse(refs, refname, |
1955 | fn, cb_data); | |
1956 | } | |
1957 | ||
7d2df051 NTND |
1958 | int for_each_reflog_ent_reverse(const char *refname, each_reflog_ent_fn fn, |
1959 | void *cb_data) | |
1960 | { | |
1961 | return refs_for_each_reflog_ent_reverse(get_main_ref_store(), | |
1962 | refname, fn, cb_data); | |
1963 | } | |
1964 | ||
1965 | int refs_for_each_reflog_ent(struct ref_store *refs, const char *refname, | |
1966 | each_reflog_ent_fn fn, void *cb_data) | |
1967 | { | |
1968 | return refs->be->for_each_reflog_ent(refs, refname, fn, cb_data); | |
1969 | } | |
1970 | ||
e3688bd6 DT |
1971 | int for_each_reflog_ent(const char *refname, each_reflog_ent_fn fn, |
1972 | void *cb_data) | |
1973 | { | |
7d2df051 NTND |
1974 | return refs_for_each_reflog_ent(get_main_ref_store(), refname, |
1975 | fn, cb_data); | |
1976 | } | |
e3688bd6 | 1977 | |
7d2df051 NTND |
1978 | int refs_reflog_exists(struct ref_store *refs, const char *refname) |
1979 | { | |
1980 | return refs->be->reflog_exists(refs, refname); | |
e3688bd6 DT |
1981 | } |
1982 | ||
1983 | int reflog_exists(const char *refname) | |
1984 | { | |
7d2df051 NTND |
1985 | return refs_reflog_exists(get_main_ref_store(), refname); |
1986 | } | |
e3688bd6 | 1987 | |
7d2df051 NTND |
1988 | int refs_create_reflog(struct ref_store *refs, const char *refname, |
1989 | int force_create, struct strbuf *err) | |
1990 | { | |
1991 | return refs->be->create_reflog(refs, refname, force_create, err); | |
e3688bd6 DT |
1992 | } |
1993 | ||
1994 | int safe_create_reflog(const char *refname, int force_create, | |
1995 | struct strbuf *err) | |
1996 | { | |
7d2df051 NTND |
1997 | return refs_create_reflog(get_main_ref_store(), refname, |
1998 | force_create, err); | |
1999 | } | |
e3688bd6 | 2000 | |
7d2df051 NTND |
2001 | int refs_delete_reflog(struct ref_store *refs, const char *refname) |
2002 | { | |
2003 | return refs->be->delete_reflog(refs, refname); | |
e3688bd6 DT |
2004 | } |
2005 | ||
2006 | int delete_reflog(const char *refname) | |
2007 | { | |
7d2df051 NTND |
2008 | return refs_delete_reflog(get_main_ref_store(), refname); |
2009 | } | |
e3688bd6 | 2010 | |
7d2df051 NTND |
2011 | int refs_reflog_expire(struct ref_store *refs, |
2012 | const char *refname, const unsigned char *sha1, | |
2013 | unsigned int flags, | |
2014 | reflog_expiry_prepare_fn prepare_fn, | |
2015 | reflog_expiry_should_prune_fn should_prune_fn, | |
2016 | reflog_expiry_cleanup_fn cleanup_fn, | |
2017 | void *policy_cb_data) | |
2018 | { | |
2019 | return refs->be->reflog_expire(refs, refname, sha1, flags, | |
2020 | prepare_fn, should_prune_fn, | |
2021 | cleanup_fn, policy_cb_data); | |
e3688bd6 DT |
2022 | } |
2023 | ||
2024 | int reflog_expire(const char *refname, const unsigned char *sha1, | |
2025 | unsigned int flags, | |
2026 | reflog_expiry_prepare_fn prepare_fn, | |
2027 | reflog_expiry_should_prune_fn should_prune_fn, | |
2028 | reflog_expiry_cleanup_fn cleanup_fn, | |
2029 | void *policy_cb_data) | |
2030 | { | |
7d2df051 NTND |
2031 | return refs_reflog_expire(get_main_ref_store(), |
2032 | refname, sha1, flags, | |
2033 | prepare_fn, should_prune_fn, | |
2034 | cleanup_fn, policy_cb_data); | |
e3688bd6 | 2035 | } |
fc681463 DT |
2036 | |
2037 | int initial_ref_transaction_commit(struct ref_transaction *transaction, | |
2038 | struct strbuf *err) | |
2039 | { | |
c0fe4e8b | 2040 | struct ref_store *refs = transaction->ref_store; |
fc681463 DT |
2041 | |
2042 | return refs->be->initial_transaction_commit(refs, transaction, err); | |
2043 | } | |
a27dcf89 | 2044 | |
64da4199 MH |
2045 | int refs_delete_refs(struct ref_store *refs, const char *msg, |
2046 | struct string_list *refnames, unsigned int flags) | |
a27dcf89 | 2047 | { |
64da4199 | 2048 | return refs->be->delete_refs(refs, msg, refnames, flags); |
a27dcf89 | 2049 | } |
9b6b40d9 | 2050 | |
64da4199 MH |
2051 | int delete_refs(const char *msg, struct string_list *refnames, |
2052 | unsigned int flags) | |
9b6b40d9 | 2053 | { |
64da4199 | 2054 | return refs_delete_refs(get_main_ref_store(), msg, refnames, flags); |
7d2df051 | 2055 | } |
9b6b40d9 | 2056 | |
7d2df051 NTND |
2057 | int refs_rename_ref(struct ref_store *refs, const char *oldref, |
2058 | const char *newref, const char *logmsg) | |
2059 | { | |
9b6b40d9 DT |
2060 | return refs->be->rename_ref(refs, oldref, newref, logmsg); |
2061 | } | |
7d2df051 NTND |
2062 | |
2063 | int rename_ref(const char *oldref, const char *newref, const char *logmsg) | |
2064 | { | |
2065 | return refs_rename_ref(get_main_ref_store(), oldref, newref, logmsg); | |
2066 | } | |
52d59cc6 SD |
2067 | |
2068 | int refs_copy_existing_ref(struct ref_store *refs, const char *oldref, | |
2069 | const char *newref, const char *logmsg) | |
2070 | { | |
2071 | return refs->be->copy_ref(refs, oldref, newref, logmsg); | |
2072 | } | |
2073 | ||
2074 | int copy_existing_ref(const char *oldref, const char *newref, const char *logmsg) | |
2075 | { | |
2076 | return refs_copy_existing_ref(get_main_ref_store(), oldref, newref, logmsg); | |
2077 | } |