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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" |
7d4558c4 | 6 | #include "hashmap.h" |
697cc8ef | 7 | #include "lockfile.h" |
85023577 | 8 | #include "refs.h" |
4cb77009 | 9 | #include "refs/refs-internal.h" |
cf0adba7 JH |
10 | #include "object.h" |
11 | #include "tag.h" | |
3581d793 | 12 | |
3dce444f RS |
13 | /* |
14 | * List of all available backends | |
15 | */ | |
16 | static struct ref_storage_be *refs_backends = &refs_be_files; | |
17 | ||
18 | static struct ref_storage_be *find_ref_storage_backend(const char *name) | |
19 | { | |
20 | struct ref_storage_be *be; | |
21 | for (be = refs_backends; be; be = be->next) | |
22 | if (!strcmp(be->name, name)) | |
23 | return be; | |
24 | return NULL; | |
25 | } | |
26 | ||
27 | int ref_storage_backend_exists(const char *name) | |
28 | { | |
29 | return find_ref_storage_backend(name) != NULL; | |
30 | } | |
31 | ||
bc5fd6d3 | 32 | /* |
dde8a902 DT |
33 | * How to handle various characters in refnames: |
34 | * 0: An acceptable character for refs | |
5e650228 JH |
35 | * 1: End-of-component |
36 | * 2: ., look for a preceding . to reject .. in refs | |
37 | * 3: {, look for a preceding @ to reject @{ in refs | |
53a8555e | 38 | * 4: A bad character: ASCII control characters, and |
cd377f45 JK |
39 | * ":", "?", "[", "\", "^", "~", SP, or TAB |
40 | * 5: *, reject unless REFNAME_REFSPEC_PATTERN is set | |
dde8a902 DT |
41 | */ |
42 | static unsigned char refname_disposition[256] = { | |
5e650228 JH |
43 | 1, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, |
44 | 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, | |
cd377f45 | 45 | 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5, 0, 0, 0, 2, 1, |
5e650228 | 46 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0, 0, 0, 4, |
dde8a902 | 47 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
5e650228 JH |
48 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 4, 0, 4, 0, |
49 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
50 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 4, 4 | |
dde8a902 DT |
51 | }; |
52 | ||
53 | /* | |
54 | * Try to read one refname component from the front of refname. | |
55 | * Return the length of the component found, or -1 if the component is | |
56 | * not legal. It is legal if it is something reasonable to have under | |
57 | * ".git/refs/"; We do not like it if: | |
bc5fd6d3 MH |
58 | * |
59 | * - any path component of it begins with ".", or | |
60 | * - it has double dots "..", or | |
53a8555e | 61 | * - it has ASCII control characters, or |
cd377f45 JK |
62 | * - it has ":", "?", "[", "\", "^", "~", SP, or TAB anywhere, or |
63 | * - it has "*" anywhere unless REFNAME_REFSPEC_PATTERN is set, or | |
53a8555e JK |
64 | * - it ends with a "/", or |
65 | * - it ends with ".lock", or | |
66 | * - it contains a "@{" portion | |
bc5fd6d3 | 67 | */ |
cd377f45 | 68 | static int check_refname_component(const char *refname, int *flags) |
bc5fd6d3 MH |
69 | { |
70 | const char *cp; | |
71 | char last = '\0'; | |
72 | ||
73 | for (cp = refname; ; cp++) { | |
dde8a902 DT |
74 | int ch = *cp & 255; |
75 | unsigned char disp = refname_disposition[ch]; | |
76 | switch (disp) { | |
5e650228 | 77 | case 1: |
dde8a902 | 78 | goto out; |
5e650228 | 79 | case 2: |
dde8a902 DT |
80 | if (last == '.') |
81 | return -1; /* Refname contains "..". */ | |
82 | break; | |
5e650228 | 83 | case 3: |
dde8a902 DT |
84 | if (last == '@') |
85 | return -1; /* Refname contains "@{". */ | |
bc5fd6d3 | 86 | break; |
5e650228 | 87 | case 4: |
dde8a902 | 88 | return -1; |
cd377f45 JK |
89 | case 5: |
90 | if (!(*flags & REFNAME_REFSPEC_PATTERN)) | |
91 | return -1; /* refspec can't be a pattern */ | |
92 | ||
93 | /* | |
94 | * Unset the pattern flag so that we only accept | |
95 | * a single asterisk for one side of refspec. | |
96 | */ | |
97 | *flags &= ~ REFNAME_REFSPEC_PATTERN; | |
98 | break; | |
dde8a902 | 99 | } |
bc5fd6d3 MH |
100 | last = ch; |
101 | } | |
dde8a902 | 102 | out: |
bc5fd6d3 | 103 | if (cp == refname) |
dac529e4 | 104 | return 0; /* Component has zero length. */ |
f3cc52d8 JN |
105 | if (refname[0] == '.') |
106 | return -1; /* Component starts with '.'. */ | |
7108ad23 MH |
107 | if (cp - refname >= LOCK_SUFFIX_LEN && |
108 | !memcmp(cp - LOCK_SUFFIX_LEN, LOCK_SUFFIX, LOCK_SUFFIX_LEN)) | |
bc5fd6d3 MH |
109 | return -1; /* Refname ends with ".lock". */ |
110 | return cp - refname; | |
111 | } | |
112 | ||
5e650228 | 113 | int check_refname_format(const char *refname, int flags) |
bc5fd6d3 MH |
114 | { |
115 | int component_len, component_count = 0; | |
116 | ||
9ba89f48 FC |
117 | if (!strcmp(refname, "@")) |
118 | /* Refname is a single character '@'. */ | |
119 | return -1; | |
120 | ||
bc5fd6d3 MH |
121 | while (1) { |
122 | /* We are at the start of a path component. */ | |
cd377f45 JK |
123 | component_len = check_refname_component(refname, &flags); |
124 | if (component_len <= 0) | |
125 | return -1; | |
126 | ||
bc5fd6d3 MH |
127 | component_count++; |
128 | if (refname[component_len] == '\0') | |
129 | break; | |
130 | /* Skip to next component. */ | |
131 | refname += component_len + 1; | |
132 | } | |
133 | ||
134 | if (refname[component_len - 1] == '.') | |
135 | return -1; /* Refname ends with '.'. */ | |
136 | if (!(flags & REFNAME_ALLOW_ONELEVEL) && component_count < 2) | |
137 | return -1; /* Refname has only one component. */ | |
138 | return 0; | |
139 | } | |
140 | ||
4cb77009 | 141 | int refname_is_safe(const char *refname) |
d0f810f0 | 142 | { |
39950fef MH |
143 | const char *rest; |
144 | ||
145 | if (skip_prefix(refname, "refs/", &rest)) { | |
d0f810f0 RS |
146 | char *buf; |
147 | int result; | |
e40f3557 MH |
148 | size_t restlen = strlen(rest); |
149 | ||
150 | /* rest must not be empty, or start or end with "/" */ | |
151 | if (!restlen || *rest == '/' || rest[restlen - 1] == '/') | |
152 | return 0; | |
d0f810f0 | 153 | |
d0f810f0 RS |
154 | /* |
155 | * Does the refname try to escape refs/? | |
156 | * For example: refs/foo/../bar is safe but refs/foo/../../bar | |
157 | * is not. | |
158 | */ | |
e40f3557 MH |
159 | buf = xmallocz(restlen); |
160 | result = !normalize_path_copy(buf, rest) && !strcmp(buf, rest); | |
d0f810f0 RS |
161 | free(buf); |
162 | return result; | |
163 | } | |
35db25c6 MH |
164 | |
165 | do { | |
d0f810f0 RS |
166 | if (!isupper(*refname) && *refname != '_') |
167 | return 0; | |
168 | refname++; | |
35db25c6 | 169 | } while (*refname); |
d0f810f0 RS |
170 | return 1; |
171 | } | |
172 | ||
7bd9bcf3 MH |
173 | char *resolve_refdup(const char *refname, int resolve_flags, |
174 | unsigned char *sha1, int *flags) | |
e1e22e37 | 175 | { |
7bd9bcf3 MH |
176 | return xstrdup_or_null(resolve_ref_unsafe(refname, resolve_flags, |
177 | sha1, flags)); | |
cddc4258 MH |
178 | } |
179 | ||
7bd9bcf3 MH |
180 | /* The argument to filter_refs */ |
181 | struct ref_filter { | |
182 | const char *pattern; | |
183 | each_ref_fn *fn; | |
184 | void *cb_data; | |
185 | }; | |
432ad41e | 186 | |
7bd9bcf3 | 187 | int read_ref_full(const char *refname, int resolve_flags, unsigned char *sha1, int *flags) |
732134ed | 188 | { |
7bd9bcf3 MH |
189 | if (resolve_ref_unsafe(refname, resolve_flags, sha1, flags)) |
190 | return 0; | |
191 | return -1; | |
732134ed MH |
192 | } |
193 | ||
7bd9bcf3 | 194 | int read_ref(const char *refname, unsigned char *sha1) |
cddc4258 | 195 | { |
7bd9bcf3 | 196 | return read_ref_full(refname, RESOLVE_REF_READING, sha1, NULL); |
c774aab9 JP |
197 | } |
198 | ||
7bd9bcf3 | 199 | int ref_exists(const char *refname) |
bc5fd6d3 | 200 | { |
7bd9bcf3 MH |
201 | unsigned char sha1[20]; |
202 | return !!resolve_ref_unsafe(refname, RESOLVE_REF_READING, sha1, NULL); | |
bc5fd6d3 MH |
203 | } |
204 | ||
7bd9bcf3 MH |
205 | static int filter_refs(const char *refname, const struct object_id *oid, |
206 | int flags, void *data) | |
432ad41e | 207 | { |
7bd9bcf3 MH |
208 | struct ref_filter *filter = (struct ref_filter *)data; |
209 | ||
210 | if (wildmatch(filter->pattern, refname, 0, NULL)) | |
211 | return 0; | |
212 | return filter->fn(refname, oid, flags, filter->cb_data); | |
432ad41e MH |
213 | } |
214 | ||
7bd9bcf3 | 215 | enum peel_status peel_object(const unsigned char *name, unsigned char *sha1) |
c774aab9 | 216 | { |
7bd9bcf3 | 217 | struct object *o = lookup_unknown_object(name); |
c774aab9 | 218 | |
7bd9bcf3 MH |
219 | if (o->type == OBJ_NONE) { |
220 | int type = sha1_object_info(name, NULL); | |
221 | if (type < 0 || !object_as_type(o, type, 0)) | |
222 | return PEEL_INVALID; | |
223 | } | |
bc5fd6d3 | 224 | |
7bd9bcf3 MH |
225 | if (o->type != OBJ_TAG) |
226 | return PEEL_NON_TAG; | |
e1980c9d | 227 | |
7bd9bcf3 MH |
228 | o = deref_tag_noverify(o); |
229 | if (!o) | |
230 | return PEEL_INVALID; | |
231 | ||
844a9ce4 | 232 | hashcpy(sha1, o->oid.hash); |
7bd9bcf3 | 233 | return PEEL_PEELED; |
e1980c9d JH |
234 | } |
235 | ||
7bd9bcf3 MH |
236 | struct warn_if_dangling_data { |
237 | FILE *fp; | |
238 | const char *refname; | |
239 | const struct string_list *refnames; | |
240 | const char *msg_fmt; | |
241 | }; | |
bc5fd6d3 | 242 | |
7bd9bcf3 MH |
243 | static int warn_if_dangling_symref(const char *refname, const struct object_id *oid, |
244 | int flags, void *cb_data) | |
245 | { | |
246 | struct warn_if_dangling_data *d = cb_data; | |
247 | const char *resolves_to; | |
248 | struct object_id junk; | |
bc5fd6d3 | 249 | |
7bd9bcf3 MH |
250 | if (!(flags & REF_ISSYMREF)) |
251 | return 0; | |
bc5fd6d3 | 252 | |
7bd9bcf3 MH |
253 | resolves_to = resolve_ref_unsafe(refname, 0, junk.hash, NULL); |
254 | if (!resolves_to | |
255 | || (d->refname | |
256 | ? strcmp(resolves_to, d->refname) | |
257 | : !string_list_has_string(d->refnames, resolves_to))) { | |
258 | return 0; | |
259 | } | |
bc5fd6d3 | 260 | |
7bd9bcf3 MH |
261 | fprintf(d->fp, d->msg_fmt, refname); |
262 | fputc('\n', d->fp); | |
263 | return 0; | |
bc5fd6d3 MH |
264 | } |
265 | ||
7bd9bcf3 | 266 | void warn_dangling_symref(FILE *fp, const char *msg_fmt, const char *refname) |
f348ac92 | 267 | { |
7bd9bcf3 MH |
268 | struct warn_if_dangling_data data; |
269 | ||
270 | data.fp = fp; | |
271 | data.refname = refname; | |
272 | data.refnames = NULL; | |
273 | data.msg_fmt = msg_fmt; | |
274 | for_each_rawref(warn_if_dangling_symref, &data); | |
f348ac92 MH |
275 | } |
276 | ||
7bd9bcf3 | 277 | void warn_dangling_symrefs(FILE *fp, const char *msg_fmt, const struct string_list *refnames) |
432ad41e | 278 | { |
7bd9bcf3 | 279 | struct warn_if_dangling_data data; |
432ad41e | 280 | |
7bd9bcf3 MH |
281 | data.fp = fp; |
282 | data.refname = NULL; | |
283 | data.refnames = refnames; | |
284 | data.msg_fmt = msg_fmt; | |
285 | for_each_rawref(warn_if_dangling_symref, &data); | |
432ad41e MH |
286 | } |
287 | ||
7bd9bcf3 | 288 | int for_each_tag_ref(each_ref_fn fn, void *cb_data) |
432ad41e | 289 | { |
7bd9bcf3 | 290 | return for_each_ref_in("refs/tags/", fn, cb_data); |
432ad41e MH |
291 | } |
292 | ||
7bd9bcf3 | 293 | int for_each_tag_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data) |
506a760d | 294 | { |
7bd9bcf3 | 295 | return for_each_ref_in_submodule(submodule, "refs/tags/", fn, cb_data); |
432ad41e MH |
296 | } |
297 | ||
7bd9bcf3 | 298 | int for_each_branch_ref(each_ref_fn fn, void *cb_data) |
432ad41e | 299 | { |
7bd9bcf3 | 300 | return for_each_ref_in("refs/heads/", fn, cb_data); |
432ad41e MH |
301 | } |
302 | ||
7bd9bcf3 | 303 | int for_each_branch_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data) |
202a56a9 | 304 | { |
7bd9bcf3 | 305 | return for_each_ref_in_submodule(submodule, "refs/heads/", fn, cb_data); |
202a56a9 | 306 | } |
432ad41e | 307 | |
7bd9bcf3 | 308 | int for_each_remote_ref(each_ref_fn fn, void *cb_data) |
e9c4c111 | 309 | { |
7bd9bcf3 | 310 | return for_each_ref_in("refs/remotes/", fn, cb_data); |
202a56a9 MH |
311 | } |
312 | ||
7bd9bcf3 | 313 | int for_each_remote_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data) |
e9c4c111 | 314 | { |
7bd9bcf3 | 315 | return for_each_ref_in_submodule(submodule, "refs/remotes/", fn, cb_data); |
662428f4 | 316 | } |
c774aab9 | 317 | |
7bd9bcf3 MH |
318 | int head_ref_namespaced(each_ref_fn fn, void *cb_data) |
319 | { | |
320 | struct strbuf buf = STRBUF_INIT; | |
321 | int ret = 0; | |
322 | struct object_id oid; | |
323 | int flag; | |
c774aab9 | 324 | |
7bd9bcf3 MH |
325 | strbuf_addf(&buf, "%sHEAD", get_git_namespace()); |
326 | if (!read_ref_full(buf.buf, RESOLVE_REF_READING, oid.hash, &flag)) | |
327 | ret = fn(buf.buf, &oid, flag, cb_data); | |
328 | strbuf_release(&buf); | |
c774aab9 | 329 | |
7bd9bcf3 | 330 | return ret; |
e9c4c111 | 331 | } |
c774aab9 | 332 | |
7bd9bcf3 MH |
333 | int for_each_glob_ref_in(each_ref_fn fn, const char *pattern, |
334 | const char *prefix, void *cb_data) | |
662428f4 | 335 | { |
7bd9bcf3 MH |
336 | struct strbuf real_pattern = STRBUF_INIT; |
337 | struct ref_filter filter; | |
338 | int ret; | |
d08bae7e | 339 | |
59556548 | 340 | if (!prefix && !starts_with(pattern, "refs/")) |
d08bae7e | 341 | strbuf_addstr(&real_pattern, "refs/"); |
b09fe971 IL |
342 | else if (prefix) |
343 | strbuf_addstr(&real_pattern, prefix); | |
d08bae7e IL |
344 | strbuf_addstr(&real_pattern, pattern); |
345 | ||
894a9d33 | 346 | if (!has_glob_specials(pattern)) { |
9517e6b8 | 347 | /* Append implied '/' '*' if not present. */ |
00b6c178 | 348 | strbuf_complete(&real_pattern, '/'); |
d08bae7e IL |
349 | /* No need to check for '*', there is none. */ |
350 | strbuf_addch(&real_pattern, '*'); | |
351 | } | |
352 | ||
353 | filter.pattern = real_pattern.buf; | |
354 | filter.fn = fn; | |
355 | filter.cb_data = cb_data; | |
356 | ret = for_each_ref(filter_refs, &filter); | |
357 | ||
358 | strbuf_release(&real_pattern); | |
359 | return ret; | |
360 | } | |
361 | ||
b09fe971 IL |
362 | int for_each_glob_ref(each_ref_fn fn, const char *pattern, void *cb_data) |
363 | { | |
364 | return for_each_glob_ref_in(fn, pattern, NULL, cb_data); | |
365 | } | |
366 | ||
4577e483 | 367 | const char *prettify_refname(const char *name) |
a9c37a72 | 368 | { |
a9c37a72 | 369 | return name + ( |
59556548 CC |
370 | starts_with(name, "refs/heads/") ? 11 : |
371 | starts_with(name, "refs/tags/") ? 10 : | |
372 | starts_with(name, "refs/remotes/") ? 13 : | |
a9c37a72 DB |
373 | 0); |
374 | } | |
375 | ||
54457fe5 | 376 | static const char *ref_rev_parse_rules[] = { |
79803322 SP |
377 | "%.*s", |
378 | "refs/%.*s", | |
379 | "refs/tags/%.*s", | |
380 | "refs/heads/%.*s", | |
381 | "refs/remotes/%.*s", | |
382 | "refs/remotes/%.*s/HEAD", | |
383 | NULL | |
384 | }; | |
385 | ||
54457fe5 | 386 | int refname_match(const char *abbrev_name, const char *full_name) |
79803322 SP |
387 | { |
388 | const char **p; | |
389 | const int abbrev_name_len = strlen(abbrev_name); | |
390 | ||
54457fe5 | 391 | for (p = ref_rev_parse_rules; *p; p++) { |
79803322 SP |
392 | if (!strcmp(full_name, mkpath(*p, abbrev_name_len, abbrev_name))) { |
393 | return 1; | |
394 | } | |
395 | } | |
396 | ||
397 | return 0; | |
398 | } | |
399 | ||
ff74f7f1 JH |
400 | /* |
401 | * *string and *len will only be substituted, and *string returned (for | |
402 | * later free()ing) if the string passed in is a magic short-hand form | |
403 | * to name a branch. | |
404 | */ | |
405 | static char *substitute_branch_name(const char **string, int *len) | |
406 | { | |
407 | struct strbuf buf = STRBUF_INIT; | |
cf99a761 | 408 | int ret = interpret_branch_name(*string, *len, &buf); |
ff74f7f1 JH |
409 | |
410 | if (ret == *len) { | |
411 | size_t size; | |
412 | *string = strbuf_detach(&buf, &size); | |
413 | *len = size; | |
414 | return (char *)*string; | |
415 | } | |
416 | ||
417 | return NULL; | |
418 | } | |
419 | ||
420 | int dwim_ref(const char *str, int len, unsigned char *sha1, char **ref) | |
421 | { | |
422 | char *last_branch = substitute_branch_name(&str, &len); | |
41da7111 NTND |
423 | int refs_found = expand_ref(str, len, sha1, ref); |
424 | free(last_branch); | |
425 | return refs_found; | |
426 | } | |
427 | ||
428 | int expand_ref(const char *str, int len, unsigned char *sha1, char **ref) | |
429 | { | |
ff74f7f1 JH |
430 | const char **p, *r; |
431 | int refs_found = 0; | |
432 | ||
433 | *ref = NULL; | |
434 | for (p = ref_rev_parse_rules; *p; p++) { | |
435 | char fullref[PATH_MAX]; | |
436 | unsigned char sha1_from_ref[20]; | |
437 | unsigned char *this_result; | |
438 | int flag; | |
439 | ||
440 | this_result = refs_found ? sha1_from_ref : sha1; | |
441 | mksnpath(fullref, sizeof(fullref), *p, len, str); | |
7695d118 RS |
442 | r = resolve_ref_unsafe(fullref, RESOLVE_REF_READING, |
443 | this_result, &flag); | |
ff74f7f1 JH |
444 | if (r) { |
445 | if (!refs_found++) | |
446 | *ref = xstrdup(r); | |
447 | if (!warn_ambiguous_refs) | |
448 | break; | |
55956350 | 449 | } else if ((flag & REF_ISSYMREF) && strcmp(fullref, "HEAD")) { |
ff74f7f1 | 450 | warning("ignoring dangling symref %s.", fullref); |
55956350 JH |
451 | } else if ((flag & REF_ISBROKEN) && strchr(fullref, '/')) { |
452 | warning("ignoring broken ref %s.", fullref); | |
453 | } | |
ff74f7f1 | 454 | } |
ff74f7f1 JH |
455 | return refs_found; |
456 | } | |
457 | ||
458 | int dwim_log(const char *str, int len, unsigned char *sha1, char **log) | |
459 | { | |
460 | char *last_branch = substitute_branch_name(&str, &len); | |
461 | const char **p; | |
462 | int logs_found = 0; | |
463 | ||
464 | *log = NULL; | |
465 | for (p = ref_rev_parse_rules; *p; p++) { | |
ff74f7f1 JH |
466 | unsigned char hash[20]; |
467 | char path[PATH_MAX]; | |
468 | const char *ref, *it; | |
469 | ||
470 | mksnpath(path, sizeof(path), *p, len, str); | |
7695d118 RS |
471 | ref = resolve_ref_unsafe(path, RESOLVE_REF_READING, |
472 | hash, NULL); | |
ff74f7f1 JH |
473 | if (!ref) |
474 | continue; | |
4da58835 | 475 | if (reflog_exists(path)) |
ff74f7f1 | 476 | it = path; |
4da58835 | 477 | else if (strcmp(ref, path) && reflog_exists(ref)) |
ff74f7f1 JH |
478 | it = ref; |
479 | else | |
480 | continue; | |
481 | if (!logs_found++) { | |
482 | *log = xstrdup(it); | |
483 | hashcpy(sha1, hash); | |
484 | } | |
7bd9bcf3 MH |
485 | if (!warn_ambiguous_refs) |
486 | break; | |
c0277d15 | 487 | } |
7bd9bcf3 MH |
488 | free(last_branch); |
489 | return logs_found; | |
2ddb5d17 BK |
490 | } |
491 | ||
266b1827 DT |
492 | static int is_per_worktree_ref(const char *refname) |
493 | { | |
ce414b33 DT |
494 | return !strcmp(refname, "HEAD") || |
495 | starts_with(refname, "refs/bisect/"); | |
266b1827 DT |
496 | } |
497 | ||
498 | static int is_pseudoref_syntax(const char *refname) | |
499 | { | |
500 | const char *c; | |
501 | ||
502 | for (c = refname; *c; c++) { | |
503 | if (!isupper(*c) && *c != '-' && *c != '_') | |
504 | return 0; | |
505 | } | |
506 | ||
507 | return 1; | |
508 | } | |
509 | ||
510 | enum ref_type ref_type(const char *refname) | |
511 | { | |
512 | if (is_per_worktree_ref(refname)) | |
513 | return REF_TYPE_PER_WORKTREE; | |
514 | if (is_pseudoref_syntax(refname)) | |
515 | return REF_TYPE_PSEUDOREF; | |
516 | return REF_TYPE_NORMAL; | |
517 | } | |
518 | ||
74ec19d4 DT |
519 | static int write_pseudoref(const char *pseudoref, const unsigned char *sha1, |
520 | const unsigned char *old_sha1, struct strbuf *err) | |
521 | { | |
522 | const char *filename; | |
523 | int fd; | |
524 | static struct lock_file lock; | |
525 | struct strbuf buf = STRBUF_INIT; | |
526 | int ret = -1; | |
527 | ||
528 | strbuf_addf(&buf, "%s\n", sha1_to_hex(sha1)); | |
529 | ||
530 | filename = git_path("%s", pseudoref); | |
531 | fd = hold_lock_file_for_update(&lock, filename, LOCK_DIE_ON_ERROR); | |
532 | if (fd < 0) { | |
0568c8e9 | 533 | strbuf_addf(err, "could not open '%s' for writing: %s", |
74ec19d4 DT |
534 | filename, strerror(errno)); |
535 | return -1; | |
536 | } | |
537 | ||
538 | if (old_sha1) { | |
539 | unsigned char actual_old_sha1[20]; | |
2c3aed13 DT |
540 | |
541 | if (read_ref(pseudoref, actual_old_sha1)) | |
542 | die("could not read ref '%s'", pseudoref); | |
74ec19d4 | 543 | if (hashcmp(actual_old_sha1, old_sha1)) { |
0568c8e9 | 544 | strbuf_addf(err, "unexpected sha1 when writing '%s'", pseudoref); |
74ec19d4 DT |
545 | rollback_lock_file(&lock); |
546 | goto done; | |
547 | } | |
548 | } | |
549 | ||
550 | if (write_in_full(fd, buf.buf, buf.len) != buf.len) { | |
0568c8e9 | 551 | strbuf_addf(err, "could not write to '%s'", filename); |
74ec19d4 DT |
552 | rollback_lock_file(&lock); |
553 | goto done; | |
554 | } | |
555 | ||
556 | commit_lock_file(&lock); | |
557 | ret = 0; | |
558 | done: | |
559 | strbuf_release(&buf); | |
560 | return ret; | |
561 | } | |
562 | ||
563 | static int delete_pseudoref(const char *pseudoref, const unsigned char *old_sha1) | |
564 | { | |
565 | static struct lock_file lock; | |
566 | const char *filename; | |
567 | ||
568 | filename = git_path("%s", pseudoref); | |
569 | ||
570 | if (old_sha1 && !is_null_sha1(old_sha1)) { | |
571 | int fd; | |
572 | unsigned char actual_old_sha1[20]; | |
573 | ||
574 | fd = hold_lock_file_for_update(&lock, filename, | |
575 | LOCK_DIE_ON_ERROR); | |
576 | if (fd < 0) | |
577 | die_errno(_("Could not open '%s' for writing"), filename); | |
2c3aed13 DT |
578 | if (read_ref(pseudoref, actual_old_sha1)) |
579 | die("could not read ref '%s'", pseudoref); | |
74ec19d4 DT |
580 | if (hashcmp(actual_old_sha1, old_sha1)) { |
581 | warning("Unexpected sha1 when deleting %s", pseudoref); | |
582 | rollback_lock_file(&lock); | |
583 | return -1; | |
a4c653df | 584 | } |
74ec19d4 DT |
585 | |
586 | unlink(filename); | |
587 | rollback_lock_file(&lock); | |
588 | } else { | |
589 | unlink(filename); | |
4bd18c43 | 590 | } |
a4c653df | 591 | |
4bd18c43 | 592 | return 0; |
95fc7512 | 593 | } |
d556fae2 | 594 | |
fc1c2168 MH |
595 | int delete_ref(const char *refname, const unsigned char *old_sha1, |
596 | unsigned int flags) | |
41b625b0 | 597 | { |
7521cc46 | 598 | struct ref_transaction *transaction; |
a4c653df | 599 | struct strbuf err = STRBUF_INIT; |
8b5157e4 | 600 | |
74ec19d4 | 601 | if (ref_type(refname) == REF_TYPE_PSEUDOREF) |
080cc646 | 602 | return delete_pseudoref(refname, old_sha1); |
d48744d1 | 603 | |
7521cc46 RS |
604 | transaction = ref_transaction_begin(&err); |
605 | if (!transaction || | |
fc67a082 | 606 | ref_transaction_delete(transaction, refname, old_sha1, |
fb5a6bb6 | 607 | flags, NULL, &err) || |
db7516ab | 608 | ref_transaction_commit(transaction, &err)) { |
7521cc46 RS |
609 | error("%s", err.buf); |
610 | ref_transaction_free(transaction); | |
611 | strbuf_release(&err); | |
c0277d15 | 612 | return 1; |
41b625b0 | 613 | } |
7bd9bcf3 MH |
614 | ref_transaction_free(transaction); |
615 | strbuf_release(&err); | |
b531394d BC |
616 | return 0; |
617 | } | |
41b625b0 | 618 | |
4cb77009 | 619 | int copy_reflog_msg(char *buf, const char *msg) |
0ec29a47 JH |
620 | { |
621 | char *cp = buf; | |
622 | char c; | |
623 | int wasspace = 1; | |
8b5157e4 | 624 | |
0ec29a47 JH |
625 | *cp++ = '\t'; |
626 | while ((c = *msg++)) { | |
627 | if (wasspace && isspace(c)) | |
628 | continue; | |
629 | wasspace = isspace(c); | |
630 | if (wasspace) | |
631 | c = ' '; | |
632 | *cp++ = c; | |
a4c653df | 633 | } |
0ec29a47 JH |
634 | while (buf < cp && isspace(cp[-1])) |
635 | cp--; | |
636 | *cp++ = '\n'; | |
637 | return cp - buf; | |
638 | } | |
8b5157e4 | 639 | |
4cb77009 | 640 | int should_autocreate_reflog(const char *refname) |
4e2bef57 DT |
641 | { |
642 | if (!log_all_ref_updates) | |
643 | return 0; | |
644 | return starts_with(refname, "refs/heads/") || | |
645 | starts_with(refname, "refs/remotes/") || | |
646 | starts_with(refname, "refs/notes/") || | |
647 | !strcmp(refname, "HEAD"); | |
648 | } | |
649 | ||
e7e0f26e | 650 | int is_branch(const char *refname) |
c3b0dec5 | 651 | { |
59556548 | 652 | return !strcmp(refname, "HEAD") || starts_with(refname, "refs/heads/"); |
41b625b0 NP |
653 | } |
654 | ||
4207ed28 RS |
655 | struct read_ref_at_cb { |
656 | const char *refname; | |
657 | unsigned long at_time; | |
658 | int cnt; | |
659 | int reccnt; | |
660 | unsigned char *sha1; | |
661 | int found_it; | |
662 | ||
663 | unsigned char osha1[20]; | |
664 | unsigned char nsha1[20]; | |
665 | int tz; | |
666 | unsigned long date; | |
667 | char **msg; | |
668 | unsigned long *cutoff_time; | |
669 | int *cutoff_tz; | |
670 | int *cutoff_cnt; | |
671 | }; | |
672 | ||
673 | static int read_ref_at_ent(unsigned char *osha1, unsigned char *nsha1, | |
674 | const char *email, unsigned long timestamp, int tz, | |
675 | const char *message, void *cb_data) | |
676 | { | |
677 | struct read_ref_at_cb *cb = cb_data; | |
678 | ||
679 | cb->reccnt++; | |
680 | cb->tz = tz; | |
681 | cb->date = timestamp; | |
682 | ||
683 | if (timestamp <= cb->at_time || cb->cnt == 0) { | |
684 | if (cb->msg) | |
685 | *cb->msg = xstrdup(message); | |
686 | if (cb->cutoff_time) | |
687 | *cb->cutoff_time = timestamp; | |
688 | if (cb->cutoff_tz) | |
689 | *cb->cutoff_tz = tz; | |
690 | if (cb->cutoff_cnt) | |
691 | *cb->cutoff_cnt = cb->reccnt - 1; | |
692 | /* | |
693 | * we have not yet updated cb->[n|o]sha1 so they still | |
694 | * hold the values for the previous record. | |
695 | */ | |
696 | if (!is_null_sha1(cb->osha1)) { | |
697 | hashcpy(cb->sha1, nsha1); | |
698 | if (hashcmp(cb->osha1, nsha1)) | |
699 | warning("Log for ref %s has gap after %s.", | |
a5481a6c | 700 | cb->refname, show_date(cb->date, cb->tz, DATE_MODE(RFC2822))); |
4207ed28 RS |
701 | } |
702 | else if (cb->date == cb->at_time) | |
703 | hashcpy(cb->sha1, nsha1); | |
704 | else if (hashcmp(nsha1, cb->sha1)) | |
705 | warning("Log for ref %s unexpectedly ended on %s.", | |
706 | cb->refname, show_date(cb->date, cb->tz, | |
a5481a6c | 707 | DATE_MODE(RFC2822))); |
4207ed28 RS |
708 | hashcpy(cb->osha1, osha1); |
709 | hashcpy(cb->nsha1, nsha1); | |
710 | cb->found_it = 1; | |
711 | return 1; | |
712 | } | |
713 | hashcpy(cb->osha1, osha1); | |
714 | hashcpy(cb->nsha1, nsha1); | |
715 | if (cb->cnt > 0) | |
716 | cb->cnt--; | |
717 | return 0; | |
718 | } | |
719 | ||
720 | static int read_ref_at_ent_oldest(unsigned char *osha1, unsigned char *nsha1, | |
721 | const char *email, unsigned long timestamp, | |
722 | int tz, const char *message, void *cb_data) | |
723 | { | |
724 | struct read_ref_at_cb *cb = cb_data; | |
725 | ||
726 | if (cb->msg) | |
727 | *cb->msg = xstrdup(message); | |
728 | if (cb->cutoff_time) | |
729 | *cb->cutoff_time = timestamp; | |
730 | if (cb->cutoff_tz) | |
731 | *cb->cutoff_tz = tz; | |
732 | if (cb->cutoff_cnt) | |
733 | *cb->cutoff_cnt = cb->reccnt; | |
734 | hashcpy(cb->sha1, osha1); | |
735 | if (is_null_sha1(cb->sha1)) | |
736 | hashcpy(cb->sha1, nsha1); | |
737 | /* We just want the first entry */ | |
738 | return 1; | |
16d7cc90 JH |
739 | } |
740 | ||
c41a87dd | 741 | int read_ref_at(const char *refname, unsigned int flags, unsigned long at_time, int cnt, |
dfefa935 MH |
742 | unsigned char *sha1, char **msg, |
743 | unsigned long *cutoff_time, int *cutoff_tz, int *cutoff_cnt) | |
d556fae2 | 744 | { |
4207ed28 | 745 | struct read_ref_at_cb cb; |
d556fae2 | 746 | |
4207ed28 RS |
747 | memset(&cb, 0, sizeof(cb)); |
748 | cb.refname = refname; | |
749 | cb.at_time = at_time; | |
750 | cb.cnt = cnt; | |
751 | cb.msg = msg; | |
752 | cb.cutoff_time = cutoff_time; | |
753 | cb.cutoff_tz = cutoff_tz; | |
754 | cb.cutoff_cnt = cutoff_cnt; | |
755 | cb.sha1 = sha1; | |
756 | ||
757 | for_each_reflog_ent_reverse(refname, read_ref_at_ent, &cb); | |
758 | ||
c41a87dd DA |
759 | if (!cb.reccnt) { |
760 | if (flags & GET_SHA1_QUIETLY) | |
761 | exit(128); | |
762 | else | |
763 | die("Log for %s is empty.", refname); | |
764 | } | |
4207ed28 RS |
765 | if (cb.found_it) |
766 | return 0; | |
767 | ||
768 | for_each_reflog_ent(refname, read_ref_at_ent_oldest, &cb); | |
d556fae2 | 769 | |
16d7cc90 | 770 | return 1; |
d556fae2 | 771 | } |
2ff81662 | 772 | |
93a644ea | 773 | struct ref_transaction *ref_transaction_begin(struct strbuf *err) |
caa4046c | 774 | { |
5a603b04 JN |
775 | assert(err); |
776 | ||
caa4046c MH |
777 | return xcalloc(1, sizeof(struct ref_transaction)); |
778 | } | |
779 | ||
026bd1d3 | 780 | void ref_transaction_free(struct ref_transaction *transaction) |
caa4046c MH |
781 | { |
782 | int i; | |
783 | ||
1b07255c RS |
784 | if (!transaction) |
785 | return; | |
786 | ||
db7516ab RS |
787 | for (i = 0; i < transaction->nr; i++) { |
788 | free(transaction->updates[i]->msg); | |
88615910 | 789 | free(transaction->updates[i]); |
db7516ab | 790 | } |
caa4046c MH |
791 | free(transaction->updates); |
792 | free(transaction); | |
793 | } | |
794 | ||
71564516 MH |
795 | struct ref_update *ref_transaction_add_update( |
796 | struct ref_transaction *transaction, | |
797 | const char *refname, unsigned int flags, | |
798 | const unsigned char *new_sha1, | |
799 | const unsigned char *old_sha1, | |
800 | const char *msg) | |
caa4046c | 801 | { |
96ffc06f | 802 | struct ref_update *update; |
71564516 MH |
803 | |
804 | if (transaction->state != REF_TRANSACTION_OPEN) | |
805 | die("BUG: update called for transaction that is not open"); | |
806 | ||
807 | if ((flags & REF_ISPRUNING) && !(flags & REF_NODEREF)) | |
808 | die("BUG: REF_ISPRUNING set without REF_NODEREF"); | |
809 | ||
96ffc06f | 810 | FLEX_ALLOC_STR(update, refname, refname); |
caa4046c MH |
811 | ALLOC_GROW(transaction->updates, transaction->nr + 1, transaction->alloc); |
812 | transaction->updates[transaction->nr++] = update; | |
71564516 MH |
813 | |
814 | update->flags = flags; | |
815 | ||
816 | if (flags & REF_HAVE_NEW) | |
817 | hashcpy(update->new_sha1, new_sha1); | |
818 | if (flags & REF_HAVE_OLD) | |
819 | hashcpy(update->old_sha1, old_sha1); | |
13092a91 | 820 | update->msg = xstrdup_or_null(msg); |
caa4046c MH |
821 | return update; |
822 | } | |
823 | ||
8e34800e RS |
824 | int ref_transaction_update(struct ref_transaction *transaction, |
825 | const char *refname, | |
826 | const unsigned char *new_sha1, | |
827 | const unsigned char *old_sha1, | |
1d147bdf | 828 | unsigned int flags, const char *msg, |
8e34800e | 829 | struct strbuf *err) |
caa4046c | 830 | { |
5a603b04 JN |
831 | assert(err); |
832 | ||
8a679de6 MH |
833 | if ((new_sha1 && !is_null_sha1(new_sha1)) ? |
834 | check_refname_format(refname, REFNAME_ALLOW_ONELEVEL) : | |
835 | !refname_is_safe(refname)) { | |
0568c8e9 | 836 | strbuf_addf(err, "refusing to update ref with bad name '%s'", |
d0f810f0 RS |
837 | refname); |
838 | return -1; | |
839 | } | |
840 | ||
71564516 MH |
841 | flags |= (new_sha1 ? REF_HAVE_NEW : 0) | (old_sha1 ? REF_HAVE_OLD : 0); |
842 | ||
843 | ref_transaction_add_update(transaction, refname, flags, | |
844 | new_sha1, old_sha1, msg); | |
8e34800e | 845 | return 0; |
caa4046c MH |
846 | } |
847 | ||
b416af5b RS |
848 | int ref_transaction_create(struct ref_transaction *transaction, |
849 | const char *refname, | |
850 | const unsigned char *new_sha1, | |
fec14ec3 | 851 | unsigned int flags, const char *msg, |
b416af5b | 852 | struct strbuf *err) |
caa4046c | 853 | { |
f04c5b55 MH |
854 | if (!new_sha1 || is_null_sha1(new_sha1)) |
855 | die("BUG: create called without valid new_sha1"); | |
bc9f2925 | 856 | return ref_transaction_update(transaction, refname, new_sha1, |
1d147bdf | 857 | null_sha1, flags, msg, err); |
caa4046c MH |
858 | } |
859 | ||
8c8bdc0d RS |
860 | int ref_transaction_delete(struct ref_transaction *transaction, |
861 | const char *refname, | |
862 | const unsigned char *old_sha1, | |
fb5a6bb6 | 863 | unsigned int flags, const char *msg, |
8c8bdc0d | 864 | struct strbuf *err) |
caa4046c | 865 | { |
60294596 MH |
866 | if (old_sha1 && is_null_sha1(old_sha1)) |
867 | die("BUG: delete called with old_sha1 set to zeros"); | |
1d147bdf | 868 | return ref_transaction_update(transaction, refname, |
fb5a6bb6 | 869 | null_sha1, old_sha1, |
1d147bdf | 870 | flags, msg, err); |
caa4046c MH |
871 | } |
872 | ||
16180334 MH |
873 | int ref_transaction_verify(struct ref_transaction *transaction, |
874 | const char *refname, | |
875 | const unsigned char *old_sha1, | |
876 | unsigned int flags, | |
877 | struct strbuf *err) | |
878 | { | |
879 | if (!old_sha1) | |
880 | die("BUG: verify called with old_sha1 set to NULL"); | |
881 | return ref_transaction_update(transaction, refname, | |
882 | NULL, old_sha1, | |
883 | flags, NULL, err); | |
884 | } | |
885 | ||
8f6dc7e3 | 886 | int update_ref_oid(const char *msg, const char *refname, |
887 | const struct object_id *new_oid, const struct object_id *old_oid, | |
888 | unsigned int flags, enum action_on_err onerr) | |
889 | { | |
890 | return update_ref(msg, refname, new_oid ? new_oid->hash : NULL, | |
891 | old_oid ? old_oid->hash : NULL, flags, onerr); | |
892 | } | |
893 | ||
4b7b520b MH |
894 | int update_ref(const char *msg, const char *refname, |
895 | const unsigned char *new_sha1, const unsigned char *old_sha1, | |
fec14ec3 | 896 | unsigned int flags, enum action_on_err onerr) |
4738a333 | 897 | { |
74ec19d4 | 898 | struct ref_transaction *t = NULL; |
b4d75ac1 | 899 | struct strbuf err = STRBUF_INIT; |
74ec19d4 | 900 | int ret = 0; |
b4d75ac1 | 901 | |
74ec19d4 DT |
902 | if (ref_type(refname) == REF_TYPE_PSEUDOREF) { |
903 | ret = write_pseudoref(refname, new_sha1, old_sha1, &err); | |
904 | } else { | |
905 | t = ref_transaction_begin(&err); | |
906 | if (!t || | |
907 | ref_transaction_update(t, refname, new_sha1, old_sha1, | |
908 | flags, msg, &err) || | |
909 | ref_transaction_commit(t, &err)) { | |
910 | ret = 1; | |
911 | ref_transaction_free(t); | |
912 | } | |
913 | } | |
914 | if (ret) { | |
b4d75ac1 RS |
915 | const char *str = "update_ref failed for ref '%s': %s"; |
916 | ||
b4d75ac1 RS |
917 | switch (onerr) { |
918 | case UPDATE_REFS_MSG_ON_ERR: | |
919 | error(str, refname, err.buf); | |
920 | break; | |
921 | case UPDATE_REFS_DIE_ON_ERR: | |
922 | die(str, refname, err.buf); | |
923 | break; | |
924 | case UPDATE_REFS_QUIET_ON_ERR: | |
925 | break; | |
926 | } | |
927 | strbuf_release(&err); | |
4738a333 | 928 | return 1; |
b4d75ac1 RS |
929 | } |
930 | strbuf_release(&err); | |
74ec19d4 DT |
931 | if (t) |
932 | ref_transaction_free(t); | |
b4d75ac1 | 933 | return 0; |
4738a333 BK |
934 | } |
935 | ||
dfefa935 | 936 | char *shorten_unambiguous_ref(const char *refname, int strict) |
7c2b3029 JK |
937 | { |
938 | int i; | |
939 | static char **scanf_fmts; | |
940 | static int nr_rules; | |
941 | char *short_name; | |
942 | ||
7c2b3029 | 943 | if (!nr_rules) { |
4346663a MH |
944 | /* |
945 | * Pre-generate scanf formats from ref_rev_parse_rules[]. | |
946 | * Generate a format suitable for scanf from a | |
947 | * ref_rev_parse_rules rule by interpolating "%s" at the | |
948 | * location of the "%.*s". | |
949 | */ | |
7c2b3029 | 950 | size_t total_len = 0; |
84d5633f | 951 | size_t offset = 0; |
7c2b3029 JK |
952 | |
953 | /* the rule list is NULL terminated, count them first */ | |
a4165851 | 954 | for (nr_rules = 0; ref_rev_parse_rules[nr_rules]; nr_rules++) |
7902fe03 MH |
955 | /* -2 for strlen("%.*s") - strlen("%s"); +1 for NUL */ |
956 | total_len += strlen(ref_rev_parse_rules[nr_rules]) - 2 + 1; | |
7c2b3029 | 957 | |
50492f7b | 958 | scanf_fmts = xmalloc(st_add(st_mult(sizeof(char *), nr_rules), total_len)); |
7c2b3029 | 959 | |
84d5633f | 960 | offset = 0; |
7c2b3029 | 961 | for (i = 0; i < nr_rules; i++) { |
4346663a | 962 | assert(offset < total_len); |
84d5633f | 963 | scanf_fmts[i] = (char *)&scanf_fmts[nr_rules] + offset; |
4346663a MH |
964 | offset += snprintf(scanf_fmts[i], total_len - offset, |
965 | ref_rev_parse_rules[i], 2, "%s") + 1; | |
7c2b3029 JK |
966 | } |
967 | } | |
968 | ||
969 | /* bail out if there are no rules */ | |
970 | if (!nr_rules) | |
dfefa935 | 971 | return xstrdup(refname); |
7c2b3029 | 972 | |
dfefa935 MH |
973 | /* buffer for scanf result, at most refname must fit */ |
974 | short_name = xstrdup(refname); | |
7c2b3029 JK |
975 | |
976 | /* skip first rule, it will always match */ | |
977 | for (i = nr_rules - 1; i > 0 ; --i) { | |
978 | int j; | |
6e7b3309 | 979 | int rules_to_fail = i; |
7c2b3029 JK |
980 | int short_name_len; |
981 | ||
dfefa935 | 982 | if (1 != sscanf(refname, scanf_fmts[i], short_name)) |
7c2b3029 JK |
983 | continue; |
984 | ||
985 | short_name_len = strlen(short_name); | |
986 | ||
6e7b3309 BW |
987 | /* |
988 | * in strict mode, all (except the matched one) rules | |
989 | * must fail to resolve to a valid non-ambiguous ref | |
990 | */ | |
991 | if (strict) | |
992 | rules_to_fail = nr_rules; | |
993 | ||
7c2b3029 JK |
994 | /* |
995 | * check if the short name resolves to a valid ref, | |
996 | * but use only rules prior to the matched one | |
997 | */ | |
6e7b3309 | 998 | for (j = 0; j < rules_to_fail; j++) { |
7c2b3029 | 999 | const char *rule = ref_rev_parse_rules[j]; |
7c2b3029 JK |
1000 | char refname[PATH_MAX]; |
1001 | ||
6e7b3309 BW |
1002 | /* skip matched rule */ |
1003 | if (i == j) | |
1004 | continue; | |
1005 | ||
7c2b3029 JK |
1006 | /* |
1007 | * the short name is ambiguous, if it resolves | |
1008 | * (with this previous rule) to a valid ref | |
1009 | * read_ref() returns 0 on success | |
1010 | */ | |
1011 | mksnpath(refname, sizeof(refname), | |
1012 | rule, short_name_len, short_name); | |
c6893323 | 1013 | if (ref_exists(refname)) |
7c2b3029 JK |
1014 | break; |
1015 | } | |
1016 | ||
1017 | /* | |
1018 | * short name is non-ambiguous if all previous rules | |
1019 | * haven't resolved to a valid ref | |
1020 | */ | |
6e7b3309 | 1021 | if (j == rules_to_fail) |
7c2b3029 JK |
1022 | return short_name; |
1023 | } | |
1024 | ||
1025 | free(short_name); | |
dfefa935 | 1026 | return xstrdup(refname); |
7c2b3029 | 1027 | } |
daebaa78 JH |
1028 | |
1029 | static struct string_list *hide_refs; | |
1030 | ||
1031 | int parse_hide_refs_config(const char *var, const char *value, const char *section) | |
1032 | { | |
1033 | if (!strcmp("transfer.hiderefs", var) || | |
1034 | /* NEEDSWORK: use parse_config_key() once both are merged */ | |
59556548 | 1035 | (starts_with(var, section) && var[strlen(section)] == '.' && |
daebaa78 JH |
1036 | !strcmp(var + strlen(section), ".hiderefs"))) { |
1037 | char *ref; | |
1038 | int len; | |
1039 | ||
1040 | if (!value) | |
1041 | return config_error_nonbool(var); | |
1042 | ref = xstrdup(value); | |
1043 | len = strlen(ref); | |
1044 | while (len && ref[len - 1] == '/') | |
1045 | ref[--len] = '\0'; | |
1046 | if (!hide_refs) { | |
1047 | hide_refs = xcalloc(1, sizeof(*hide_refs)); | |
1048 | hide_refs->strdup_strings = 1; | |
1049 | } | |
1050 | string_list_append(hide_refs, ref); | |
1051 | } | |
1052 | return 0; | |
1053 | } | |
1054 | ||
78a766ab | 1055 | int ref_is_hidden(const char *refname, const char *refname_full) |
daebaa78 | 1056 | { |
2bc31d16 | 1057 | int i; |
daebaa78 JH |
1058 | |
1059 | if (!hide_refs) | |
1060 | return 0; | |
2bc31d16 JK |
1061 | for (i = hide_refs->nr - 1; i >= 0; i--) { |
1062 | const char *match = hide_refs->items[i].string; | |
78a766ab | 1063 | const char *subject; |
2bc31d16 | 1064 | int neg = 0; |
daebaa78 | 1065 | int len; |
2bc31d16 JK |
1066 | |
1067 | if (*match == '!') { | |
1068 | neg = 1; | |
1069 | match++; | |
1070 | } | |
1071 | ||
78a766ab LF |
1072 | if (*match == '^') { |
1073 | subject = refname_full; | |
1074 | match++; | |
1075 | } else { | |
1076 | subject = refname; | |
1077 | } | |
1078 | ||
1079 | /* refname can be NULL when namespaces are used. */ | |
1080 | if (!subject || !starts_with(subject, match)) | |
daebaa78 | 1081 | continue; |
2bc31d16 | 1082 | len = strlen(match); |
78a766ab | 1083 | if (!subject[len] || subject[len] == '/') |
2bc31d16 | 1084 | return !neg; |
daebaa78 JH |
1085 | } |
1086 | return 0; | |
1087 | } | |
fa5b1830 | 1088 | |
0845122c DT |
1089 | const char *find_descendant_ref(const char *dirname, |
1090 | const struct string_list *extras, | |
1091 | const struct string_list *skip) | |
fa5b1830 | 1092 | { |
0845122c | 1093 | int pos; |
fa5b1830 | 1094 | |
0845122c DT |
1095 | if (!extras) |
1096 | return NULL; | |
fa5b1830 MH |
1097 | |
1098 | /* | |
0845122c DT |
1099 | * Look at the place where dirname would be inserted into |
1100 | * extras. If there is an entry at that position that starts | |
1101 | * with dirname (remember, dirname includes the trailing | |
1102 | * slash) and is not in skip, then we have a conflict. | |
fa5b1830 | 1103 | */ |
0845122c DT |
1104 | for (pos = string_list_find_insert_index(extras, dirname, 0); |
1105 | pos < extras->nr; pos++) { | |
1106 | const char *extra_refname = extras->items[pos].string; | |
fa5b1830 | 1107 | |
0845122c DT |
1108 | if (!starts_with(extra_refname, dirname)) |
1109 | break; | |
1110 | ||
1111 | if (!skip || !string_list_has_string(skip, extra_refname)) | |
1112 | return extra_refname; | |
fa5b1830 | 1113 | } |
0845122c DT |
1114 | return NULL; |
1115 | } | |
fa5b1830 | 1116 | |
ff3a299c | 1117 | int rename_ref_available(const char *old_refname, const char *new_refname) |
0845122c DT |
1118 | { |
1119 | struct string_list skip = STRING_LIST_INIT_NODUP; | |
1120 | struct strbuf err = STRBUF_INIT; | |
ff3a299c | 1121 | int ok; |
fa5b1830 | 1122 | |
ff3a299c DT |
1123 | string_list_insert(&skip, old_refname); |
1124 | ok = !verify_refname_available(new_refname, NULL, &skip, &err); | |
1125 | if (!ok) | |
0845122c DT |
1126 | error("%s", err.buf); |
1127 | ||
1128 | string_list_clear(&skip, 0); | |
1129 | strbuf_release(&err); | |
ff3a299c | 1130 | return ok; |
fa5b1830 | 1131 | } |
2bf68ed5 DT |
1132 | |
1133 | int head_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data) | |
1134 | { | |
1135 | struct object_id oid; | |
1136 | int flag; | |
1137 | ||
1138 | if (submodule) { | |
1139 | if (resolve_gitlink_ref(submodule, "HEAD", oid.hash) == 0) | |
1140 | return fn("HEAD", &oid, 0, cb_data); | |
1141 | ||
1142 | return 0; | |
1143 | } | |
1144 | ||
1145 | if (!read_ref_full("HEAD", RESOLVE_REF_READING, oid.hash, &flag)) | |
1146 | return fn("HEAD", &oid, flag, cb_data); | |
1147 | ||
1148 | return 0; | |
1149 | } | |
1150 | ||
1151 | int head_ref(each_ref_fn fn, void *cb_data) | |
1152 | { | |
1153 | return head_ref_submodule(NULL, fn, cb_data); | |
1154 | } | |
93770590 | 1155 | |
4c4de895 MH |
1156 | /* |
1157 | * Call fn for each reference in the specified submodule for which the | |
1158 | * refname begins with prefix. If trim is non-zero, then trim that | |
1159 | * many characters off the beginning of each refname before passing | |
1160 | * the refname to fn. flags can be DO_FOR_EACH_INCLUDE_BROKEN to | |
1161 | * include broken references in the iteration. If fn ever returns a | |
1162 | * non-zero value, stop the iteration and return that value; | |
1163 | * otherwise, return 0. | |
1164 | */ | |
1165 | static int do_for_each_ref(const char *submodule, const char *prefix, | |
1166 | each_ref_fn fn, int trim, int flags, void *cb_data) | |
1167 | { | |
00eebe35 | 1168 | struct ref_store *refs = get_ref_store(submodule); |
4c4de895 MH |
1169 | struct ref_iterator *iter; |
1170 | ||
00eebe35 MH |
1171 | if (!refs) |
1172 | return 0; | |
1173 | ||
1a769003 | 1174 | iter = refs->be->iterator_begin(refs, prefix, flags); |
4c4de895 MH |
1175 | iter = prefix_ref_iterator_begin(iter, prefix, trim); |
1176 | ||
1177 | return do_for_each_ref_iterator(iter, fn, cb_data); | |
1178 | } | |
1179 | ||
93770590 DT |
1180 | int for_each_ref(each_ref_fn fn, void *cb_data) |
1181 | { | |
1182 | return do_for_each_ref(NULL, "", fn, 0, 0, cb_data); | |
1183 | } | |
1184 | ||
1185 | int for_each_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data) | |
1186 | { | |
1187 | return do_for_each_ref(submodule, "", fn, 0, 0, cb_data); | |
1188 | } | |
1189 | ||
1190 | int for_each_ref_in(const char *prefix, each_ref_fn fn, void *cb_data) | |
1191 | { | |
1192 | return do_for_each_ref(NULL, prefix, fn, strlen(prefix), 0, cb_data); | |
1193 | } | |
1194 | ||
1195 | int for_each_fullref_in(const char *prefix, each_ref_fn fn, void *cb_data, unsigned int broken) | |
1196 | { | |
1197 | unsigned int flag = 0; | |
1198 | ||
1199 | if (broken) | |
1200 | flag = DO_FOR_EACH_INCLUDE_BROKEN; | |
1201 | return do_for_each_ref(NULL, prefix, fn, 0, flag, cb_data); | |
1202 | } | |
1203 | ||
1204 | int for_each_ref_in_submodule(const char *submodule, const char *prefix, | |
1205 | each_ref_fn fn, void *cb_data) | |
1206 | { | |
1207 | return do_for_each_ref(submodule, prefix, fn, strlen(prefix), 0, cb_data); | |
1208 | } | |
1209 | ||
1210 | int for_each_replace_ref(each_ref_fn fn, void *cb_data) | |
1211 | { | |
1212 | return do_for_each_ref(NULL, git_replace_ref_base, fn, | |
1213 | strlen(git_replace_ref_base), 0, cb_data); | |
1214 | } | |
1215 | ||
1216 | int for_each_namespaced_ref(each_ref_fn fn, void *cb_data) | |
1217 | { | |
1218 | struct strbuf buf = STRBUF_INIT; | |
1219 | int ret; | |
1220 | strbuf_addf(&buf, "%srefs/", get_git_namespace()); | |
1221 | ret = do_for_each_ref(NULL, buf.buf, fn, 0, 0, cb_data); | |
1222 | strbuf_release(&buf); | |
1223 | return ret; | |
1224 | } | |
1225 | ||
1226 | int for_each_rawref(each_ref_fn fn, void *cb_data) | |
1227 | { | |
1228 | return do_for_each_ref(NULL, "", fn, 0, | |
1229 | DO_FOR_EACH_INCLUDE_BROKEN, cb_data); | |
1230 | } | |
2d0663b2 DT |
1231 | |
1232 | /* This function needs to return a meaningful errno on failure */ | |
3c0cb0cb MH |
1233 | const char *resolve_ref_recursively(struct ref_store *refs, |
1234 | const char *refname, | |
1235 | int resolve_flags, | |
1236 | unsigned char *sha1, int *flags) | |
2d0663b2 DT |
1237 | { |
1238 | static struct strbuf sb_refname = STRBUF_INIT; | |
1239 | int unused_flags; | |
1240 | int symref_count; | |
1241 | ||
1242 | if (!flags) | |
1243 | flags = &unused_flags; | |
1244 | ||
1245 | *flags = 0; | |
1246 | ||
1247 | if (check_refname_format(refname, REFNAME_ALLOW_ONELEVEL)) { | |
1248 | if (!(resolve_flags & RESOLVE_REF_ALLOW_BAD_NAME) || | |
1249 | !refname_is_safe(refname)) { | |
1250 | errno = EINVAL; | |
1251 | return NULL; | |
1252 | } | |
1253 | ||
1254 | /* | |
1255 | * dwim_ref() uses REF_ISBROKEN to distinguish between | |
1256 | * missing refs and refs that were present but invalid, | |
1257 | * to complain about the latter to stderr. | |
1258 | * | |
1259 | * We don't know whether the ref exists, so don't set | |
1260 | * REF_ISBROKEN yet. | |
1261 | */ | |
1262 | *flags |= REF_BAD_NAME; | |
1263 | } | |
1264 | ||
1265 | for (symref_count = 0; symref_count < SYMREF_MAXDEPTH; symref_count++) { | |
1266 | unsigned int read_flags = 0; | |
1267 | ||
e1e33b72 MH |
1268 | if (refs->be->read_raw_ref(refs, refname, |
1269 | sha1, &sb_refname, &read_flags)) { | |
2d0663b2 DT |
1270 | *flags |= read_flags; |
1271 | if (errno != ENOENT || (resolve_flags & RESOLVE_REF_READING)) | |
1272 | return NULL; | |
1273 | hashclr(sha1); | |
1274 | if (*flags & REF_BAD_NAME) | |
1275 | *flags |= REF_ISBROKEN; | |
1276 | return refname; | |
1277 | } | |
1278 | ||
1279 | *flags |= read_flags; | |
1280 | ||
1281 | if (!(read_flags & REF_ISSYMREF)) { | |
1282 | if (*flags & REF_BAD_NAME) { | |
1283 | hashclr(sha1); | |
1284 | *flags |= REF_ISBROKEN; | |
1285 | } | |
1286 | return refname; | |
1287 | } | |
1288 | ||
1289 | refname = sb_refname.buf; | |
1290 | if (resolve_flags & RESOLVE_REF_NO_RECURSE) { | |
1291 | hashclr(sha1); | |
1292 | return refname; | |
1293 | } | |
1294 | if (check_refname_format(refname, REFNAME_ALLOW_ONELEVEL)) { | |
1295 | if (!(resolve_flags & RESOLVE_REF_ALLOW_BAD_NAME) || | |
1296 | !refname_is_safe(refname)) { | |
1297 | errno = EINVAL; | |
1298 | return NULL; | |
1299 | } | |
1300 | ||
1301 | *flags |= REF_ISBROKEN | REF_BAD_NAME; | |
1302 | } | |
1303 | } | |
1304 | ||
1305 | errno = ELOOP; | |
1306 | return NULL; | |
1307 | } | |
00eebe35 | 1308 | |
6fb5acfd DT |
1309 | /* backend functions */ |
1310 | int refs_init_db(struct strbuf *err) | |
1311 | { | |
1312 | struct ref_store *refs = get_ref_store(NULL); | |
1313 | ||
1314 | return refs->be->init_db(refs, err); | |
1315 | } | |
1316 | ||
bd40dcda MH |
1317 | const char *resolve_ref_unsafe(const char *refname, int resolve_flags, |
1318 | unsigned char *sha1, int *flags) | |
1319 | { | |
1320 | return resolve_ref_recursively(get_ref_store(NULL), refname, | |
1321 | resolve_flags, sha1, flags); | |
1322 | } | |
1323 | ||
a8355bb7 MH |
1324 | int resolve_gitlink_ref(const char *submodule, const char *refname, |
1325 | unsigned char *sha1) | |
424dcc76 | 1326 | { |
a8355bb7 | 1327 | size_t len = strlen(submodule); |
424dcc76 MH |
1328 | struct ref_store *refs; |
1329 | int flags; | |
1330 | ||
a8355bb7 | 1331 | while (len && submodule[len - 1] == '/') |
424dcc76 | 1332 | len--; |
48a8475f | 1333 | |
424dcc76 MH |
1334 | if (!len) |
1335 | return -1; | |
1336 | ||
a8355bb7 | 1337 | if (submodule[len]) { |
48a8475f | 1338 | /* We need to strip off one or more trailing slashes */ |
a8355bb7 | 1339 | char *stripped = xmemdupz(submodule, len); |
48a8475f MH |
1340 | |
1341 | refs = get_ref_store(stripped); | |
1342 | free(stripped); | |
1343 | } else { | |
a8355bb7 | 1344 | refs = get_ref_store(submodule); |
48a8475f MH |
1345 | } |
1346 | ||
424dcc76 MH |
1347 | if (!refs) |
1348 | return -1; | |
1349 | ||
1350 | if (!resolve_ref_recursively(refs, refname, 0, sha1, &flags) || | |
1351 | is_null_sha1(sha1)) | |
1352 | return -1; | |
1353 | return 0; | |
1354 | } | |
1355 | ||
7d4558c4 MH |
1356 | struct submodule_hash_entry |
1357 | { | |
1358 | struct hashmap_entry ent; /* must be the first member! */ | |
1359 | ||
1360 | struct ref_store *refs; | |
1361 | ||
1362 | /* NUL-terminated name of submodule: */ | |
1363 | char submodule[FLEX_ARRAY]; | |
1364 | }; | |
1365 | ||
1366 | static int submodule_hash_cmp(const void *entry, const void *entry_or_key, | |
1367 | const void *keydata) | |
1368 | { | |
1369 | const struct submodule_hash_entry *e1 = entry, *e2 = entry_or_key; | |
1370 | const char *submodule = keydata ? keydata : e2->submodule; | |
1371 | ||
1372 | return strcmp(e1->submodule, submodule); | |
1373 | } | |
1374 | ||
1375 | static struct submodule_hash_entry *alloc_submodule_hash_entry( | |
1376 | const char *submodule, struct ref_store *refs) | |
1377 | { | |
1378 | struct submodule_hash_entry *entry; | |
1379 | ||
1380 | FLEX_ALLOC_STR(entry, submodule, submodule); | |
1381 | hashmap_entry_init(entry, strhash(submodule)); | |
1382 | entry->refs = refs; | |
1383 | return entry; | |
1384 | } | |
1385 | ||
00eebe35 MH |
1386 | /* A pointer to the ref_store for the main repository: */ |
1387 | static struct ref_store *main_ref_store; | |
1388 | ||
7d4558c4 MH |
1389 | /* A hashmap of ref_stores, stored by submodule name: */ |
1390 | static struct hashmap submodule_ref_stores; | |
00eebe35 | 1391 | |
c468da4e MH |
1392 | /* |
1393 | * Return the ref_store instance for the specified submodule (or the | |
1394 | * main repository if submodule is NULL). If that ref_store hasn't | |
1395 | * been initialized yet, return NULL. | |
c468da4e MH |
1396 | */ |
1397 | static struct ref_store *lookup_ref_store(const char *submodule) | |
00eebe35 | 1398 | { |
7d4558c4 | 1399 | struct submodule_hash_entry *entry; |
00eebe35 | 1400 | |
b4f540b6 | 1401 | if (!submodule) |
620a66b9 | 1402 | return main_ref_store; |
00eebe35 | 1403 | |
7d4558c4 MH |
1404 | if (!submodule_ref_stores.tablesize) |
1405 | /* It's initialized on demand in register_ref_store(). */ | |
1406 | return NULL; | |
620a66b9 | 1407 | |
7d4558c4 MH |
1408 | entry = hashmap_get_from_hash(&submodule_ref_stores, |
1409 | strhash(submodule), submodule); | |
1410 | return entry ? entry->refs : NULL; | |
00eebe35 MH |
1411 | } |
1412 | ||
ba88add5 MH |
1413 | /* |
1414 | * Register the specified ref_store to be the one that should be used | |
1415 | * for submodule (or the main repository if submodule is NULL). It is | |
1416 | * a fatal error to call this function twice for the same submodule. | |
1417 | */ | |
1418 | static void register_ref_store(struct ref_store *refs, const char *submodule) | |
1419 | { | |
1420 | if (!submodule) { | |
1421 | if (main_ref_store) | |
1422 | die("BUG: main_ref_store initialized twice"); | |
1423 | ||
ba88add5 MH |
1424 | main_ref_store = refs; |
1425 | } else { | |
7d4558c4 MH |
1426 | if (!submodule_ref_stores.tablesize) |
1427 | hashmap_init(&submodule_ref_stores, submodule_hash_cmp, 0); | |
1428 | ||
1429 | if (hashmap_put(&submodule_ref_stores, | |
1430 | alloc_submodule_hash_entry(submodule, refs))) | |
ba88add5 MH |
1431 | die("BUG: ref_store for submodule '%s' initialized twice", |
1432 | submodule); | |
ba88add5 MH |
1433 | } |
1434 | } | |
1435 | ||
c468da4e MH |
1436 | /* |
1437 | * Create, record, and return a ref_store instance for the specified | |
1438 | * submodule (or the main repository if submodule is NULL). | |
c468da4e MH |
1439 | */ |
1440 | static struct ref_store *ref_store_init(const char *submodule) | |
00eebe35 MH |
1441 | { |
1442 | const char *be_name = "files"; | |
1443 | struct ref_storage_be *be = find_ref_storage_backend(be_name); | |
ba88add5 | 1444 | struct ref_store *refs; |
00eebe35 MH |
1445 | |
1446 | if (!be) | |
1447 | die("BUG: reference backend %s is unknown", be_name); | |
1448 | ||
ba88add5 MH |
1449 | refs = be->init(submodule); |
1450 | register_ref_store(refs, submodule); | |
1451 | return refs; | |
00eebe35 MH |
1452 | } |
1453 | ||
00eebe35 MH |
1454 | struct ref_store *get_ref_store(const char *submodule) |
1455 | { | |
1456 | struct ref_store *refs; | |
1457 | ||
1458 | if (!submodule || !*submodule) { | |
1459 | refs = lookup_ref_store(NULL); | |
1460 | ||
1461 | if (!refs) | |
1462 | refs = ref_store_init(NULL); | |
1463 | } else { | |
1464 | refs = lookup_ref_store(submodule); | |
1465 | ||
1466 | if (!refs) { | |
1467 | struct strbuf submodule_sb = STRBUF_INIT; | |
1468 | ||
1469 | strbuf_addstr(&submodule_sb, submodule); | |
1470 | if (is_nonbare_repository_dir(&submodule_sb)) | |
1471 | refs = ref_store_init(submodule); | |
1472 | strbuf_release(&submodule_sb); | |
1473 | } | |
1474 | } | |
1475 | ||
1476 | return refs; | |
1477 | } | |
1478 | ||
620a66b9 | 1479 | void base_ref_store_init(struct ref_store *refs, |
fbfd0a29 | 1480 | const struct ref_storage_be *be) |
620a66b9 MH |
1481 | { |
1482 | refs->be = be; | |
00eebe35 | 1483 | } |
127b42a1 RS |
1484 | |
1485 | /* backend functions */ | |
8231527e MH |
1486 | int pack_refs(unsigned int flags) |
1487 | { | |
1488 | struct ref_store *refs = get_ref_store(NULL); | |
1489 | ||
1490 | return refs->be->pack_refs(refs, flags); | |
1491 | } | |
1492 | ||
bd427cf2 MH |
1493 | int peel_ref(const char *refname, unsigned char *sha1) |
1494 | { | |
1495 | struct ref_store *refs = get_ref_store(NULL); | |
1496 | ||
1497 | return refs->be->peel_ref(refs, refname, sha1); | |
1498 | } | |
1499 | ||
284689ba MH |
1500 | int create_symref(const char *ref_target, const char *refs_heads_master, |
1501 | const char *logmsg) | |
1502 | { | |
1503 | struct ref_store *refs = get_ref_store(NULL); | |
1504 | ||
1505 | return refs->be->create_symref(refs, ref_target, refs_heads_master, | |
1506 | logmsg); | |
1507 | } | |
1508 | ||
127b42a1 RS |
1509 | int ref_transaction_commit(struct ref_transaction *transaction, |
1510 | struct strbuf *err) | |
1511 | { | |
1512 | struct ref_store *refs = get_ref_store(NULL); | |
1513 | ||
1514 | return refs->be->transaction_commit(refs, transaction, err); | |
1515 | } | |
62665823 MH |
1516 | |
1517 | int verify_refname_available(const char *refname, | |
1518 | const struct string_list *extra, | |
1519 | const struct string_list *skip, | |
1520 | struct strbuf *err) | |
1521 | { | |
1522 | struct ref_store *refs = get_ref_store(NULL); | |
1523 | ||
1524 | return refs->be->verify_refname_available(refs, refname, extra, skip, err); | |
1525 | } | |
e3688bd6 DT |
1526 | |
1527 | int for_each_reflog(each_ref_fn fn, void *cb_data) | |
1528 | { | |
1529 | struct ref_store *refs = get_ref_store(NULL); | |
1530 | struct ref_iterator *iter; | |
1531 | ||
1532 | iter = refs->be->reflog_iterator_begin(refs); | |
1533 | ||
1534 | return do_for_each_ref_iterator(iter, fn, cb_data); | |
1535 | } | |
1536 | ||
1537 | int for_each_reflog_ent_reverse(const char *refname, each_reflog_ent_fn fn, | |
1538 | void *cb_data) | |
1539 | { | |
1540 | struct ref_store *refs = get_ref_store(NULL); | |
1541 | ||
1542 | return refs->be->for_each_reflog_ent_reverse(refs, refname, | |
1543 | fn, cb_data); | |
1544 | } | |
1545 | ||
1546 | int for_each_reflog_ent(const char *refname, each_reflog_ent_fn fn, | |
1547 | void *cb_data) | |
1548 | { | |
1549 | struct ref_store *refs = get_ref_store(NULL); | |
1550 | ||
1551 | return refs->be->for_each_reflog_ent(refs, refname, fn, cb_data); | |
1552 | } | |
1553 | ||
1554 | int reflog_exists(const char *refname) | |
1555 | { | |
1556 | struct ref_store *refs = get_ref_store(NULL); | |
1557 | ||
1558 | return refs->be->reflog_exists(refs, refname); | |
1559 | } | |
1560 | ||
1561 | int safe_create_reflog(const char *refname, int force_create, | |
1562 | struct strbuf *err) | |
1563 | { | |
1564 | struct ref_store *refs = get_ref_store(NULL); | |
1565 | ||
1566 | return refs->be->create_reflog(refs, refname, force_create, err); | |
1567 | } | |
1568 | ||
1569 | int delete_reflog(const char *refname) | |
1570 | { | |
1571 | struct ref_store *refs = get_ref_store(NULL); | |
1572 | ||
1573 | return refs->be->delete_reflog(refs, refname); | |
1574 | } | |
1575 | ||
1576 | int reflog_expire(const char *refname, const unsigned char *sha1, | |
1577 | unsigned int flags, | |
1578 | reflog_expiry_prepare_fn prepare_fn, | |
1579 | reflog_expiry_should_prune_fn should_prune_fn, | |
1580 | reflog_expiry_cleanup_fn cleanup_fn, | |
1581 | void *policy_cb_data) | |
1582 | { | |
1583 | struct ref_store *refs = get_ref_store(NULL); | |
1584 | ||
1585 | return refs->be->reflog_expire(refs, refname, sha1, flags, | |
1586 | prepare_fn, should_prune_fn, | |
1587 | cleanup_fn, policy_cb_data); | |
1588 | } | |
fc681463 DT |
1589 | |
1590 | int initial_ref_transaction_commit(struct ref_transaction *transaction, | |
1591 | struct strbuf *err) | |
1592 | { | |
1593 | struct ref_store *refs = get_ref_store(NULL); | |
1594 | ||
1595 | return refs->be->initial_transaction_commit(refs, transaction, err); | |
1596 | } | |
a27dcf89 DT |
1597 | |
1598 | int delete_refs(struct string_list *refnames, unsigned int flags) | |
1599 | { | |
1600 | struct ref_store *refs = get_ref_store(NULL); | |
1601 | ||
1602 | return refs->be->delete_refs(refs, refnames, flags); | |
1603 | } | |
9b6b40d9 DT |
1604 | |
1605 | int rename_ref(const char *oldref, const char *newref, const char *logmsg) | |
1606 | { | |
1607 | struct ref_store *refs = get_ref_store(NULL); | |
1608 | ||
1609 | return refs->be->rename_ref(refs, oldref, newref, logmsg); | |
1610 | } |