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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" |
67541597 | 12 | #include "run-command.h" |
5e3aba33 | 13 | #include "hook.h" |
cbd53a21 | 14 | #include "object-store.h" |
cf0adba7 JH |
15 | #include "object.h" |
16 | #include "tag.h" | |
5d0bc90e | 17 | #include "submodule.h" |
17eff96b | 18 | #include "worktree.h" |
dbbcd44f | 19 | #include "strvec.h" |
23a3f0cb | 20 | #include "repository.h" |
67541597 | 21 | #include "sigchain.h" |
3581d793 | 22 | |
3dce444f RS |
23 | /* |
24 | * List of all available backends | |
25 | */ | |
26 | static struct ref_storage_be *refs_backends = &refs_be_files; | |
27 | ||
28 | static struct ref_storage_be *find_ref_storage_backend(const char *name) | |
29 | { | |
30 | struct ref_storage_be *be; | |
31 | for (be = refs_backends; be; be = be->next) | |
32 | if (!strcmp(be->name, name)) | |
33 | return be; | |
34 | return NULL; | |
35 | } | |
36 | ||
bc5fd6d3 | 37 | /* |
dde8a902 DT |
38 | * How to handle various characters in refnames: |
39 | * 0: An acceptable character for refs | |
5e650228 JH |
40 | * 1: End-of-component |
41 | * 2: ., look for a preceding . to reject .. in refs | |
42 | * 3: {, look for a preceding @ to reject @{ in refs | |
53a8555e | 43 | * 4: A bad character: ASCII control characters, and |
cd377f45 JK |
44 | * ":", "?", "[", "\", "^", "~", SP, or TAB |
45 | * 5: *, reject unless REFNAME_REFSPEC_PATTERN is set | |
dde8a902 DT |
46 | */ |
47 | static unsigned char refname_disposition[256] = { | |
5e650228 JH |
48 | 1, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, |
49 | 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, | |
cd377f45 | 50 | 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5, 0, 0, 0, 2, 1, |
5e650228 | 51 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0, 0, 0, 4, |
dde8a902 | 52 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
5e650228 JH |
53 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 4, 0, 4, 0, |
54 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
55 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 4, 4 | |
dde8a902 DT |
56 | }; |
57 | ||
58 | /* | |
59 | * Try to read one refname component from the front of refname. | |
60 | * Return the length of the component found, or -1 if the component is | |
61 | * not legal. It is legal if it is something reasonable to have under | |
62 | * ".git/refs/"; We do not like it if: | |
bc5fd6d3 | 63 | * |
1de16aec | 64 | * - it begins with ".", or |
bc5fd6d3 | 65 | * - it has double dots "..", or |
53a8555e | 66 | * - it has ASCII control characters, or |
cd377f45 JK |
67 | * - it has ":", "?", "[", "\", "^", "~", SP, or TAB anywhere, or |
68 | * - it has "*" anywhere unless REFNAME_REFSPEC_PATTERN is set, or | |
53a8555e JK |
69 | * - it ends with a "/", or |
70 | * - it ends with ".lock", or | |
71 | * - it contains a "@{" portion | |
1de16aec NTND |
72 | * |
73 | * When sanitized is not NULL, instead of rejecting the input refname | |
74 | * as an error, try to come up with a usable replacement for the input | |
75 | * refname in it. | |
bc5fd6d3 | 76 | */ |
1de16aec NTND |
77 | static int check_refname_component(const char *refname, int *flags, |
78 | struct strbuf *sanitized) | |
bc5fd6d3 MH |
79 | { |
80 | const char *cp; | |
81 | char last = '\0'; | |
1de16aec NTND |
82 | size_t component_start = 0; /* garbage - not a reasonable initial value */ |
83 | ||
84 | if (sanitized) | |
85 | component_start = sanitized->len; | |
bc5fd6d3 MH |
86 | |
87 | for (cp = refname; ; cp++) { | |
dde8a902 DT |
88 | int ch = *cp & 255; |
89 | unsigned char disp = refname_disposition[ch]; | |
1de16aec NTND |
90 | |
91 | if (sanitized && disp != 1) | |
92 | strbuf_addch(sanitized, ch); | |
93 | ||
dde8a902 | 94 | switch (disp) { |
5e650228 | 95 | case 1: |
dde8a902 | 96 | goto out; |
5e650228 | 97 | case 2: |
1de16aec NTND |
98 | if (last == '.') { /* Refname contains "..". */ |
99 | if (sanitized) | |
100 | /* collapse ".." to single "." */ | |
101 | strbuf_setlen(sanitized, sanitized->len - 1); | |
102 | else | |
103 | return -1; | |
104 | } | |
dde8a902 | 105 | break; |
5e650228 | 106 | case 3: |
1de16aec NTND |
107 | if (last == '@') { /* Refname contains "@{". */ |
108 | if (sanitized) | |
109 | sanitized->buf[sanitized->len-1] = '-'; | |
110 | else | |
111 | return -1; | |
112 | } | |
bc5fd6d3 | 113 | break; |
5e650228 | 114 | case 4: |
1de16aec NTND |
115 | /* forbidden char */ |
116 | if (sanitized) | |
117 | sanitized->buf[sanitized->len-1] = '-'; | |
118 | else | |
119 | return -1; | |
120 | break; | |
cd377f45 | 121 | case 5: |
1de16aec NTND |
122 | if (!(*flags & REFNAME_REFSPEC_PATTERN)) { |
123 | /* refspec can't be a pattern */ | |
124 | if (sanitized) | |
125 | sanitized->buf[sanitized->len-1] = '-'; | |
126 | else | |
127 | return -1; | |
128 | } | |
cd377f45 JK |
129 | |
130 | /* | |
131 | * Unset the pattern flag so that we only accept | |
132 | * a single asterisk for one side of refspec. | |
133 | */ | |
134 | *flags &= ~ REFNAME_REFSPEC_PATTERN; | |
135 | break; | |
dde8a902 | 136 | } |
bc5fd6d3 MH |
137 | last = ch; |
138 | } | |
dde8a902 | 139 | out: |
bc5fd6d3 | 140 | if (cp == refname) |
dac529e4 | 141 | return 0; /* Component has zero length. */ |
1de16aec NTND |
142 | |
143 | if (refname[0] == '.') { /* Component starts with '.'. */ | |
144 | if (sanitized) | |
145 | sanitized->buf[component_start] = '-'; | |
146 | else | |
147 | return -1; | |
148 | } | |
7108ad23 | 149 | if (cp - refname >= LOCK_SUFFIX_LEN && |
1de16aec NTND |
150 | !memcmp(cp - LOCK_SUFFIX_LEN, LOCK_SUFFIX, LOCK_SUFFIX_LEN)) { |
151 | if (!sanitized) | |
152 | return -1; | |
153 | /* Refname ends with ".lock". */ | |
154 | while (strbuf_strip_suffix(sanitized, LOCK_SUFFIX)) { | |
155 | /* try again in case we have .lock.lock */ | |
156 | } | |
157 | } | |
bc5fd6d3 MH |
158 | return cp - refname; |
159 | } | |
160 | ||
1de16aec NTND |
161 | static int check_or_sanitize_refname(const char *refname, int flags, |
162 | struct strbuf *sanitized) | |
bc5fd6d3 MH |
163 | { |
164 | int component_len, component_count = 0; | |
165 | ||
1de16aec | 166 | if (!strcmp(refname, "@")) { |
9ba89f48 | 167 | /* Refname is a single character '@'. */ |
1de16aec NTND |
168 | if (sanitized) |
169 | strbuf_addch(sanitized, '-'); | |
170 | else | |
171 | return -1; | |
172 | } | |
9ba89f48 | 173 | |
bc5fd6d3 | 174 | while (1) { |
1de16aec NTND |
175 | if (sanitized && sanitized->len) |
176 | strbuf_complete(sanitized, '/'); | |
177 | ||
bc5fd6d3 | 178 | /* We are at the start of a path component. */ |
1de16aec NTND |
179 | component_len = check_refname_component(refname, &flags, |
180 | sanitized); | |
181 | if (sanitized && component_len == 0) | |
182 | ; /* OK, omit empty component */ | |
183 | else if (component_len <= 0) | |
cd377f45 JK |
184 | return -1; |
185 | ||
bc5fd6d3 MH |
186 | component_count++; |
187 | if (refname[component_len] == '\0') | |
188 | break; | |
189 | /* Skip to next component. */ | |
190 | refname += component_len + 1; | |
191 | } | |
192 | ||
1de16aec NTND |
193 | if (refname[component_len - 1] == '.') { |
194 | /* Refname ends with '.'. */ | |
195 | if (sanitized) | |
196 | ; /* omit ending dot */ | |
197 | else | |
198 | return -1; | |
199 | } | |
bc5fd6d3 MH |
200 | if (!(flags & REFNAME_ALLOW_ONELEVEL) && component_count < 2) |
201 | return -1; /* Refname has only one component. */ | |
202 | return 0; | |
203 | } | |
204 | ||
1de16aec NTND |
205 | int check_refname_format(const char *refname, int flags) |
206 | { | |
207 | return check_or_sanitize_refname(refname, flags, NULL); | |
208 | } | |
209 | ||
210 | void sanitize_refname_component(const char *refname, struct strbuf *out) | |
211 | { | |
212 | if (check_or_sanitize_refname(refname, REFNAME_ALLOW_ONELEVEL, out)) | |
213 | BUG("sanitizing refname '%s' check returned error", refname); | |
214 | } | |
215 | ||
4cb77009 | 216 | int refname_is_safe(const char *refname) |
d0f810f0 | 217 | { |
39950fef MH |
218 | const char *rest; |
219 | ||
220 | if (skip_prefix(refname, "refs/", &rest)) { | |
d0f810f0 RS |
221 | char *buf; |
222 | int result; | |
e40f3557 MH |
223 | size_t restlen = strlen(rest); |
224 | ||
225 | /* rest must not be empty, or start or end with "/" */ | |
226 | if (!restlen || *rest == '/' || rest[restlen - 1] == '/') | |
227 | return 0; | |
d0f810f0 | 228 | |
d0f810f0 RS |
229 | /* |
230 | * Does the refname try to escape refs/? | |
231 | * For example: refs/foo/../bar is safe but refs/foo/../../bar | |
232 | * is not. | |
233 | */ | |
e40f3557 MH |
234 | buf = xmallocz(restlen); |
235 | result = !normalize_path_copy(buf, rest) && !strcmp(buf, rest); | |
d0f810f0 RS |
236 | free(buf); |
237 | return result; | |
238 | } | |
35db25c6 MH |
239 | |
240 | do { | |
d0f810f0 RS |
241 | if (!isupper(*refname) && *refname != '_') |
242 | return 0; | |
243 | refname++; | |
35db25c6 | 244 | } while (*refname); |
d0f810f0 RS |
245 | return 1; |
246 | } | |
247 | ||
67be7c5a MH |
248 | /* |
249 | * Return true if refname, which has the specified oid and flags, can | |
250 | * be resolved to an object in the database. If the referred-to object | |
251 | * does not exist, emit a warning and return false. | |
252 | */ | |
253 | int ref_resolves_to_object(const char *refname, | |
254 | const struct object_id *oid, | |
255 | unsigned int flags) | |
256 | { | |
257 | if (flags & REF_ISBROKEN) | |
258 | return 0; | |
98374a07 | 259 | if (!has_object_file(oid)) { |
661558f0 | 260 | error(_("%s does not point to a valid object!"), refname); |
67be7c5a MH |
261 | return 0; |
262 | } | |
263 | return 1; | |
264 | } | |
265 | ||
7d2df051 NTND |
266 | char *refs_resolve_refdup(struct ref_store *refs, |
267 | const char *refname, int resolve_flags, | |
0f2dc722 | 268 | struct object_id *oid, int *flags) |
7d2df051 NTND |
269 | { |
270 | const char *result; | |
f65bb9fb | 271 | int ignore_errno; |
7d2df051 | 272 | |
f65bb9fb ÆAB |
273 | result = refs_werrres_ref_unsafe(refs, refname, resolve_flags, |
274 | oid, flags, &ignore_errno); | |
7d2df051 NTND |
275 | return xstrdup_or_null(result); |
276 | } | |
277 | ||
7bd9bcf3 | 278 | char *resolve_refdup(const char *refname, int resolve_flags, |
0f2dc722 | 279 | struct object_id *oid, int *flags) |
e1e22e37 | 280 | { |
23a3f0cb | 281 | return refs_resolve_refdup(get_main_ref_store(the_repository), |
7d2df051 | 282 | refname, resolve_flags, |
0f2dc722 | 283 | oid, flags); |
cddc4258 MH |
284 | } |
285 | ||
7bd9bcf3 MH |
286 | /* The argument to filter_refs */ |
287 | struct ref_filter { | |
288 | const char *pattern; | |
9ab9b5df | 289 | const char *prefix; |
7bd9bcf3 MH |
290 | each_ref_fn *fn; |
291 | void *cb_data; | |
292 | }; | |
432ad41e | 293 | |
76887df0 | 294 | int read_ref_full(const char *refname, int resolve_flags, struct object_id *oid, int *flags) |
732134ed | 295 | { |
76887df0 ÆAB |
296 | int ignore_errno; |
297 | struct ref_store *refs = get_main_ref_store(the_repository); | |
298 | ||
299 | if (refs_werrres_ref_unsafe(refs, refname, resolve_flags, | |
300 | oid, flags, &ignore_errno)) | |
7bd9bcf3 MH |
301 | return 0; |
302 | return -1; | |
732134ed MH |
303 | } |
304 | ||
34c290a6 | 305 | int read_ref(const char *refname, struct object_id *oid) |
cddc4258 | 306 | { |
34c290a6 | 307 | return read_ref_full(refname, RESOLVE_REF_READING, oid, NULL); |
c774aab9 JP |
308 | } |
309 | ||
3f9f1acc | 310 | int refs_ref_exists(struct ref_store *refs, const char *refname) |
b3cd33d0 | 311 | { |
1e3ccb55 ÆAB |
312 | int ignore_errno; |
313 | return !!refs_werrres_ref_unsafe(refs, refname, RESOLVE_REF_READING, | |
314 | NULL, NULL, &ignore_errno); | |
b3cd33d0 NTND |
315 | } |
316 | ||
7bd9bcf3 | 317 | int ref_exists(const char *refname) |
bc5fd6d3 | 318 | { |
b3cd33d0 | 319 | return refs_ref_exists(get_main_ref_store(the_repository), refname); |
bc5fd6d3 MH |
320 | } |
321 | ||
7bd9bcf3 MH |
322 | static int filter_refs(const char *refname, const struct object_id *oid, |
323 | int flags, void *data) | |
432ad41e | 324 | { |
7bd9bcf3 MH |
325 | struct ref_filter *filter = (struct ref_filter *)data; |
326 | ||
55d34269 | 327 | if (wildmatch(filter->pattern, refname, 0)) |
7bd9bcf3 | 328 | return 0; |
9ab9b5df RA |
329 | if (filter->prefix) |
330 | skip_prefix(refname, filter->prefix, &refname); | |
7bd9bcf3 | 331 | return filter->fn(refname, oid, flags, filter->cb_data); |
432ad41e MH |
332 | } |
333 | ||
ac2ed0d7 | 334 | enum peel_status peel_object(const struct object_id *name, struct object_id *oid) |
c774aab9 | 335 | { |
45a187cc | 336 | struct object *o = lookup_unknown_object(the_repository, name); |
c774aab9 | 337 | |
7bd9bcf3 | 338 | if (o->type == OBJ_NONE) { |
0df8e965 | 339 | int type = oid_object_info(the_repository, name, NULL); |
6da43d93 | 340 | if (type < 0 || !object_as_type(o, type, 0)) |
7bd9bcf3 MH |
341 | return PEEL_INVALID; |
342 | } | |
bc5fd6d3 | 343 | |
7bd9bcf3 MH |
344 | if (o->type != OBJ_TAG) |
345 | return PEEL_NON_TAG; | |
e1980c9d | 346 | |
7bd9bcf3 MH |
347 | o = deref_tag_noverify(o); |
348 | if (!o) | |
349 | return PEEL_INVALID; | |
350 | ||
ac2ed0d7 | 351 | oidcpy(oid, &o->oid); |
7bd9bcf3 | 352 | return PEEL_PEELED; |
e1980c9d JH |
353 | } |
354 | ||
7bd9bcf3 MH |
355 | struct warn_if_dangling_data { |
356 | FILE *fp; | |
357 | const char *refname; | |
358 | const struct string_list *refnames; | |
359 | const char *msg_fmt; | |
360 | }; | |
bc5fd6d3 | 361 | |
7bd9bcf3 MH |
362 | static int warn_if_dangling_symref(const char *refname, const struct object_id *oid, |
363 | int flags, void *cb_data) | |
364 | { | |
365 | struct warn_if_dangling_data *d = cb_data; | |
366 | const char *resolves_to; | |
bc5fd6d3 | 367 | |
7bd9bcf3 MH |
368 | if (!(flags & REF_ISSYMREF)) |
369 | return 0; | |
bc5fd6d3 | 370 | |
744c040b | 371 | resolves_to = resolve_ref_unsafe(refname, 0, NULL, NULL); |
7bd9bcf3 MH |
372 | if (!resolves_to |
373 | || (d->refname | |
374 | ? strcmp(resolves_to, d->refname) | |
375 | : !string_list_has_string(d->refnames, resolves_to))) { | |
376 | return 0; | |
377 | } | |
bc5fd6d3 | 378 | |
7bd9bcf3 MH |
379 | fprintf(d->fp, d->msg_fmt, refname); |
380 | fputc('\n', d->fp); | |
381 | return 0; | |
bc5fd6d3 MH |
382 | } |
383 | ||
7bd9bcf3 | 384 | void warn_dangling_symref(FILE *fp, const char *msg_fmt, const char *refname) |
f348ac92 | 385 | { |
7bd9bcf3 MH |
386 | struct warn_if_dangling_data data; |
387 | ||
388 | data.fp = fp; | |
389 | data.refname = refname; | |
390 | data.refnames = NULL; | |
391 | data.msg_fmt = msg_fmt; | |
392 | for_each_rawref(warn_if_dangling_symref, &data); | |
f348ac92 MH |
393 | } |
394 | ||
7bd9bcf3 | 395 | void warn_dangling_symrefs(FILE *fp, const char *msg_fmt, const struct string_list *refnames) |
432ad41e | 396 | { |
7bd9bcf3 | 397 | struct warn_if_dangling_data data; |
432ad41e | 398 | |
7bd9bcf3 MH |
399 | data.fp = fp; |
400 | data.refname = NULL; | |
401 | data.refnames = refnames; | |
402 | data.msg_fmt = msg_fmt; | |
403 | for_each_rawref(warn_if_dangling_symref, &data); | |
432ad41e MH |
404 | } |
405 | ||
7d2df051 NTND |
406 | int refs_for_each_tag_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
407 | { | |
408 | return refs_for_each_ref_in(refs, "refs/tags/", fn, cb_data); | |
409 | } | |
410 | ||
7bd9bcf3 | 411 | int for_each_tag_ref(each_ref_fn fn, void *cb_data) |
432ad41e | 412 | { |
23a3f0cb | 413 | return refs_for_each_tag_ref(get_main_ref_store(the_repository), fn, cb_data); |
432ad41e MH |
414 | } |
415 | ||
7d2df051 NTND |
416 | int refs_for_each_branch_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
417 | { | |
418 | return refs_for_each_ref_in(refs, "refs/heads/", fn, cb_data); | |
432ad41e MH |
419 | } |
420 | ||
7bd9bcf3 | 421 | int for_each_branch_ref(each_ref_fn fn, void *cb_data) |
432ad41e | 422 | { |
23a3f0cb | 423 | return refs_for_each_branch_ref(get_main_ref_store(the_repository), fn, cb_data); |
432ad41e MH |
424 | } |
425 | ||
7d2df051 NTND |
426 | int refs_for_each_remote_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
427 | { | |
428 | return refs_for_each_ref_in(refs, "refs/remotes/", fn, cb_data); | |
202a56a9 | 429 | } |
432ad41e | 430 | |
7bd9bcf3 | 431 | int for_each_remote_ref(each_ref_fn fn, void *cb_data) |
e9c4c111 | 432 | { |
23a3f0cb | 433 | return refs_for_each_remote_ref(get_main_ref_store(the_repository), fn, cb_data); |
202a56a9 MH |
434 | } |
435 | ||
7bd9bcf3 MH |
436 | int head_ref_namespaced(each_ref_fn fn, void *cb_data) |
437 | { | |
438 | struct strbuf buf = STRBUF_INIT; | |
439 | int ret = 0; | |
440 | struct object_id oid; | |
441 | int flag; | |
c774aab9 | 442 | |
7bd9bcf3 | 443 | strbuf_addf(&buf, "%sHEAD", get_git_namespace()); |
34c290a6 | 444 | if (!read_ref_full(buf.buf, RESOLVE_REF_READING, &oid, &flag)) |
7bd9bcf3 MH |
445 | ret = fn(buf.buf, &oid, flag, cb_data); |
446 | strbuf_release(&buf); | |
c774aab9 | 447 | |
7bd9bcf3 | 448 | return ret; |
e9c4c111 | 449 | } |
c774aab9 | 450 | |
65516f58 RA |
451 | void normalize_glob_ref(struct string_list_item *item, const char *prefix, |
452 | const char *pattern) | |
453 | { | |
454 | struct strbuf normalized_pattern = STRBUF_INIT; | |
455 | ||
456 | if (*pattern == '/') | |
457 | BUG("pattern must not start with '/'"); | |
458 | ||
459 | if (prefix) { | |
460 | strbuf_addstr(&normalized_pattern, prefix); | |
461 | } | |
462 | else if (!starts_with(pattern, "refs/")) | |
463 | strbuf_addstr(&normalized_pattern, "refs/"); | |
464 | strbuf_addstr(&normalized_pattern, pattern); | |
465 | strbuf_strip_suffix(&normalized_pattern, "/"); | |
466 | ||
467 | item->string = strbuf_detach(&normalized_pattern, NULL); | |
468 | item->util = has_glob_specials(pattern) ? NULL : item->string; | |
469 | strbuf_release(&normalized_pattern); | |
470 | } | |
471 | ||
7bd9bcf3 MH |
472 | int for_each_glob_ref_in(each_ref_fn fn, const char *pattern, |
473 | const char *prefix, void *cb_data) | |
662428f4 | 474 | { |
7bd9bcf3 MH |
475 | struct strbuf real_pattern = STRBUF_INIT; |
476 | struct ref_filter filter; | |
477 | int ret; | |
d08bae7e | 478 | |
59556548 | 479 | if (!prefix && !starts_with(pattern, "refs/")) |
d08bae7e | 480 | strbuf_addstr(&real_pattern, "refs/"); |
b09fe971 IL |
481 | else if (prefix) |
482 | strbuf_addstr(&real_pattern, prefix); | |
d08bae7e IL |
483 | strbuf_addstr(&real_pattern, pattern); |
484 | ||
894a9d33 | 485 | if (!has_glob_specials(pattern)) { |
9517e6b8 | 486 | /* Append implied '/' '*' if not present. */ |
00b6c178 | 487 | strbuf_complete(&real_pattern, '/'); |
d08bae7e IL |
488 | /* No need to check for '*', there is none. */ |
489 | strbuf_addch(&real_pattern, '*'); | |
490 | } | |
491 | ||
492 | filter.pattern = real_pattern.buf; | |
9ab9b5df | 493 | filter.prefix = prefix; |
d08bae7e IL |
494 | filter.fn = fn; |
495 | filter.cb_data = cb_data; | |
496 | ret = for_each_ref(filter_refs, &filter); | |
497 | ||
498 | strbuf_release(&real_pattern); | |
499 | return ret; | |
500 | } | |
501 | ||
b09fe971 IL |
502 | int for_each_glob_ref(each_ref_fn fn, const char *pattern, void *cb_data) |
503 | { | |
504 | return for_each_glob_ref_in(fn, pattern, NULL, cb_data); | |
505 | } | |
506 | ||
4577e483 | 507 | const char *prettify_refname(const char *name) |
a9c37a72 | 508 | { |
3e5b36c6 SG |
509 | if (skip_prefix(name, "refs/heads/", &name) || |
510 | skip_prefix(name, "refs/tags/", &name) || | |
511 | skip_prefix(name, "refs/remotes/", &name)) | |
512 | ; /* nothing */ | |
513 | return name; | |
a9c37a72 DB |
514 | } |
515 | ||
54457fe5 | 516 | static const char *ref_rev_parse_rules[] = { |
79803322 SP |
517 | "%.*s", |
518 | "refs/%.*s", | |
519 | "refs/tags/%.*s", | |
520 | "refs/heads/%.*s", | |
521 | "refs/remotes/%.*s", | |
522 | "refs/remotes/%.*s/HEAD", | |
523 | NULL | |
524 | }; | |
525 | ||
60650a48 JH |
526 | #define NUM_REV_PARSE_RULES (ARRAY_SIZE(ref_rev_parse_rules) - 1) |
527 | ||
528 | /* | |
529 | * Is it possible that the caller meant full_name with abbrev_name? | |
530 | * If so return a non-zero value to signal "yes"; the magnitude of | |
531 | * the returned value gives the precedence used for disambiguation. | |
532 | * | |
533 | * If abbrev_name cannot mean full_name, return 0. | |
534 | */ | |
54457fe5 | 535 | int refname_match(const char *abbrev_name, const char *full_name) |
79803322 SP |
536 | { |
537 | const char **p; | |
538 | const int abbrev_name_len = strlen(abbrev_name); | |
60650a48 | 539 | const int num_rules = NUM_REV_PARSE_RULES; |
79803322 | 540 | |
60650a48 JH |
541 | for (p = ref_rev_parse_rules; *p; p++) |
542 | if (!strcmp(full_name, mkpath(*p, abbrev_name_len, abbrev_name))) | |
543 | return &ref_rev_parse_rules[num_rules] - p; | |
79803322 SP |
544 | |
545 | return 0; | |
546 | } | |
547 | ||
b4be7410 BW |
548 | /* |
549 | * Given a 'prefix' expand it by the rules in 'ref_rev_parse_rules' and add | |
550 | * the results to 'prefixes' | |
551 | */ | |
c972bf4c | 552 | void expand_ref_prefix(struct strvec *prefixes, const char *prefix) |
b4be7410 BW |
553 | { |
554 | const char **p; | |
555 | int len = strlen(prefix); | |
556 | ||
557 | for (p = ref_rev_parse_rules; *p; p++) | |
c972bf4c | 558 | strvec_pushf(prefixes, *p, len, prefix); |
b4be7410 BW |
559 | } |
560 | ||
675704c7 JS |
561 | static const char default_branch_name_advice[] = N_( |
562 | "Using '%s' as the name for the initial branch. This default branch name\n" | |
563 | "is subject to change. To configure the initial branch name to use in all\n" | |
564 | "of your new repositories, which will suppress this warning, call:\n" | |
565 | "\n" | |
566 | "\tgit config --global init.defaultBranch <name>\n" | |
567 | "\n" | |
568 | "Names commonly chosen instead of 'master' are 'main', 'trunk' and\n" | |
569 | "'development'. The just-created branch can be renamed via this command:\n" | |
570 | "\n" | |
571 | "\tgit branch -m <name>\n" | |
572 | ); | |
573 | ||
cc0f13c5 | 574 | char *repo_default_branch_name(struct repository *r, int quiet) |
8747ebb7 DGW |
575 | { |
576 | const char *config_key = "init.defaultbranch"; | |
577 | const char *config_display_key = "init.defaultBranch"; | |
578 | char *ret = NULL, *full_ref; | |
704fed9e | 579 | const char *env = getenv("GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME"); |
8747ebb7 | 580 | |
704fed9e JS |
581 | if (env && *env) |
582 | ret = xstrdup(env); | |
583 | else if (repo_config_get_string(r, config_key, &ret) < 0) | |
8747ebb7 DGW |
584 | die(_("could not retrieve `%s`"), config_display_key); |
585 | ||
675704c7 | 586 | if (!ret) { |
8747ebb7 | 587 | ret = xstrdup("master"); |
675704c7 JS |
588 | if (!quiet) |
589 | advise(_(default_branch_name_advice), ret); | |
590 | } | |
8747ebb7 DGW |
591 | |
592 | full_ref = xstrfmt("refs/heads/%s", ret); | |
593 | if (check_refname_format(full_ref, 0)) | |
594 | die(_("invalid branch name: %s = %s"), config_display_key, ret); | |
595 | free(full_ref); | |
596 | ||
597 | return ret; | |
598 | } | |
599 | ||
cc0f13c5 | 600 | const char *git_default_branch_name(int quiet) |
8747ebb7 DGW |
601 | { |
602 | static char *ret; | |
603 | ||
604 | if (!ret) | |
cc0f13c5 | 605 | ret = repo_default_branch_name(the_repository, quiet); |
8747ebb7 DGW |
606 | |
607 | return ret; | |
608 | } | |
609 | ||
ff74f7f1 JH |
610 | /* |
611 | * *string and *len will only be substituted, and *string returned (for | |
612 | * later free()ing) if the string passed in is a magic short-hand form | |
613 | * to name a branch. | |
614 | */ | |
8f56e9d4 | 615 | static char *substitute_branch_name(struct repository *r, |
f24c30e0 JT |
616 | const char **string, int *len, |
617 | int nonfatal_dangling_mark) | |
ff74f7f1 JH |
618 | { |
619 | struct strbuf buf = STRBUF_INIT; | |
f24c30e0 JT |
620 | struct interpret_branch_name_options options = { |
621 | .nonfatal_dangling_mark = nonfatal_dangling_mark | |
622 | }; | |
a4f66a78 | 623 | int ret = repo_interpret_branch_name(r, *string, *len, &buf, &options); |
ff74f7f1 JH |
624 | |
625 | if (ret == *len) { | |
626 | size_t size; | |
627 | *string = strbuf_detach(&buf, &size); | |
628 | *len = size; | |
629 | return (char *)*string; | |
630 | } | |
631 | ||
632 | return NULL; | |
633 | } | |
634 | ||
d8984c53 | 635 | int repo_dwim_ref(struct repository *r, const char *str, int len, |
f24c30e0 | 636 | struct object_id *oid, char **ref, int nonfatal_dangling_mark) |
ff74f7f1 | 637 | { |
f24c30e0 JT |
638 | char *last_branch = substitute_branch_name(r, &str, &len, |
639 | nonfatal_dangling_mark); | |
d8984c53 | 640 | int refs_found = expand_ref(r, str, len, oid, ref); |
41da7111 NTND |
641 | free(last_branch); |
642 | return refs_found; | |
643 | } | |
644 | ||
0b1dbf53 NTND |
645 | int expand_ref(struct repository *repo, const char *str, int len, |
646 | struct object_id *oid, char **ref) | |
41da7111 | 647 | { |
ff74f7f1 JH |
648 | const char **p, *r; |
649 | int refs_found = 0; | |
6cd4a898 | 650 | struct strbuf fullref = STRBUF_INIT; |
ff74f7f1 JH |
651 | |
652 | *ref = NULL; | |
653 | for (p = ref_rev_parse_rules; *p; p++) { | |
cca5fa64 | 654 | struct object_id oid_from_ref; |
655 | struct object_id *this_result; | |
ff74f7f1 JH |
656 | int flag; |
657 | ||
cca5fa64 | 658 | this_result = refs_found ? &oid_from_ref : oid; |
6cd4a898 JK |
659 | strbuf_reset(&fullref); |
660 | strbuf_addf(&fullref, *p, len, str); | |
0b1dbf53 NTND |
661 | r = refs_resolve_ref_unsafe(get_main_ref_store(repo), |
662 | fullref.buf, RESOLVE_REF_READING, | |
663 | this_result, &flag); | |
ff74f7f1 JH |
664 | if (r) { |
665 | if (!refs_found++) | |
666 | *ref = xstrdup(r); | |
667 | if (!warn_ambiguous_refs) | |
668 | break; | |
6cd4a898 | 669 | } else if ((flag & REF_ISSYMREF) && strcmp(fullref.buf, "HEAD")) { |
661558f0 | 670 | warning(_("ignoring dangling symref %s"), fullref.buf); |
6cd4a898 | 671 | } else if ((flag & REF_ISBROKEN) && strchr(fullref.buf, '/')) { |
661558f0 | 672 | warning(_("ignoring broken ref %s"), fullref.buf); |
55956350 | 673 | } |
ff74f7f1 | 674 | } |
6cd4a898 | 675 | strbuf_release(&fullref); |
ff74f7f1 JH |
676 | return refs_found; |
677 | } | |
678 | ||
56700903 NTND |
679 | int repo_dwim_log(struct repository *r, const char *str, int len, |
680 | struct object_id *oid, char **log) | |
ff74f7f1 | 681 | { |
56700903 | 682 | struct ref_store *refs = get_main_ref_store(r); |
f24c30e0 | 683 | char *last_branch = substitute_branch_name(r, &str, &len, 0); |
ff74f7f1 JH |
684 | const char **p; |
685 | int logs_found = 0; | |
6cd4a898 | 686 | struct strbuf path = STRBUF_INIT; |
ff74f7f1 JH |
687 | |
688 | *log = NULL; | |
689 | for (p = ref_rev_parse_rules; *p; p++) { | |
334dc52f | 690 | struct object_id hash; |
ff74f7f1 JH |
691 | const char *ref, *it; |
692 | ||
6cd4a898 JK |
693 | strbuf_reset(&path); |
694 | strbuf_addf(&path, *p, len, str); | |
56700903 NTND |
695 | ref = refs_resolve_ref_unsafe(refs, path.buf, |
696 | RESOLVE_REF_READING, | |
6f45ec88 | 697 | oid ? &hash : NULL, NULL); |
ff74f7f1 JH |
698 | if (!ref) |
699 | continue; | |
56700903 | 700 | if (refs_reflog_exists(refs, path.buf)) |
6cd4a898 | 701 | it = path.buf; |
56700903 NTND |
702 | else if (strcmp(ref, path.buf) && |
703 | refs_reflog_exists(refs, ref)) | |
ff74f7f1 JH |
704 | it = ref; |
705 | else | |
706 | continue; | |
707 | if (!logs_found++) { | |
708 | *log = xstrdup(it); | |
6f45ec88 ÆAB |
709 | if (oid) |
710 | oidcpy(oid, &hash); | |
ff74f7f1 | 711 | } |
7bd9bcf3 MH |
712 | if (!warn_ambiguous_refs) |
713 | break; | |
c0277d15 | 714 | } |
6cd4a898 | 715 | strbuf_release(&path); |
7bd9bcf3 MH |
716 | free(last_branch); |
717 | return logs_found; | |
2ddb5d17 BK |
718 | } |
719 | ||
56700903 NTND |
720 | int dwim_log(const char *str, int len, struct object_id *oid, char **log) |
721 | { | |
722 | return repo_dwim_log(the_repository, str, len, oid, log); | |
723 | } | |
724 | ||
266b1827 DT |
725 | static int is_per_worktree_ref(const char *refname) |
726 | { | |
55dd8b91 HWN |
727 | return starts_with(refname, "refs/worktree/") || |
728 | starts_with(refname, "refs/bisect/") || | |
729 | starts_with(refname, "refs/rewritten/"); | |
266b1827 DT |
730 | } |
731 | ||
732 | static int is_pseudoref_syntax(const char *refname) | |
733 | { | |
734 | const char *c; | |
735 | ||
736 | for (c = refname; *c; c++) { | |
737 | if (!isupper(*c) && *c != '-' && *c != '_') | |
738 | return 0; | |
739 | } | |
740 | ||
741 | return 1; | |
742 | } | |
743 | ||
3a3b9d8c NTND |
744 | static int is_main_pseudoref_syntax(const char *refname) |
745 | { | |
746 | return skip_prefix(refname, "main-worktree/", &refname) && | |
747 | *refname && | |
748 | is_pseudoref_syntax(refname); | |
749 | } | |
750 | ||
751 | static int is_other_pseudoref_syntax(const char *refname) | |
752 | { | |
753 | if (!skip_prefix(refname, "worktrees/", &refname)) | |
754 | return 0; | |
755 | refname = strchr(refname, '/'); | |
756 | if (!refname || !refname[1]) | |
757 | return 0; | |
758 | return is_pseudoref_syntax(refname + 1); | |
759 | } | |
760 | ||
266b1827 DT |
761 | enum ref_type ref_type(const char *refname) |
762 | { | |
763 | if (is_per_worktree_ref(refname)) | |
764 | return REF_TYPE_PER_WORKTREE; | |
765 | if (is_pseudoref_syntax(refname)) | |
766 | return REF_TYPE_PSEUDOREF; | |
3a3b9d8c NTND |
767 | if (is_main_pseudoref_syntax(refname)) |
768 | return REF_TYPE_MAIN_PSEUDOREF; | |
769 | if (is_other_pseudoref_syntax(refname)) | |
770 | return REF_TYPE_OTHER_PSEUDOREF; | |
5c79f74f | 771 | return REF_TYPE_NORMAL; |
266b1827 DT |
772 | } |
773 | ||
4ff0f01c MH |
774 | long get_files_ref_lock_timeout_ms(void) |
775 | { | |
776 | static int configured = 0; | |
777 | ||
778 | /* The default timeout is 100 ms: */ | |
779 | static int timeout_ms = 100; | |
780 | ||
781 | if (!configured) { | |
782 | git_config_get_int("core.filesreflocktimeout", &timeout_ms); | |
783 | configured = 1; | |
784 | } | |
785 | ||
786 | return timeout_ms; | |
787 | } | |
788 | ||
c0fe4e8b NTND |
789 | int refs_delete_ref(struct ref_store *refs, const char *msg, |
790 | const char *refname, | |
2616a5e5 | 791 | const struct object_id *old_oid, |
c0fe4e8b | 792 | unsigned int flags) |
41b625b0 | 793 | { |
7521cc46 | 794 | struct ref_transaction *transaction; |
a4c653df | 795 | struct strbuf err = STRBUF_INIT; |
8b5157e4 | 796 | |
c0fe4e8b | 797 | transaction = ref_store_transaction_begin(refs, &err); |
7521cc46 | 798 | if (!transaction || |
89f3bbdd | 799 | ref_transaction_delete(transaction, refname, old_oid, |
755b49ae | 800 | flags, msg, &err) || |
db7516ab | 801 | ref_transaction_commit(transaction, &err)) { |
7521cc46 RS |
802 | error("%s", err.buf); |
803 | ref_transaction_free(transaction); | |
804 | strbuf_release(&err); | |
c0277d15 | 805 | return 1; |
41b625b0 | 806 | } |
7bd9bcf3 MH |
807 | ref_transaction_free(transaction); |
808 | strbuf_release(&err); | |
b531394d BC |
809 | return 0; |
810 | } | |
41b625b0 | 811 | |
c0fe4e8b | 812 | int delete_ref(const char *msg, const char *refname, |
2616a5e5 | 813 | const struct object_id *old_oid, unsigned int flags) |
c0fe4e8b | 814 | { |
23a3f0cb | 815 | return refs_delete_ref(get_main_ref_store(the_repository), msg, refname, |
2616a5e5 | 816 | old_oid, flags); |
c0fe4e8b NTND |
817 | } |
818 | ||
523fa69c | 819 | static void copy_reflog_msg(struct strbuf *sb, const char *msg) |
0ec29a47 | 820 | { |
0ec29a47 JH |
821 | char c; |
822 | int wasspace = 1; | |
8b5157e4 | 823 | |
0ec29a47 JH |
824 | while ((c = *msg++)) { |
825 | if (wasspace && isspace(c)) | |
826 | continue; | |
827 | wasspace = isspace(c); | |
828 | if (wasspace) | |
829 | c = ' '; | |
80a6c207 | 830 | strbuf_addch(sb, c); |
a4c653df | 831 | } |
80a6c207 | 832 | strbuf_rtrim(sb); |
0ec29a47 | 833 | } |
8b5157e4 | 834 | |
523fa69c JH |
835 | static char *normalize_reflog_message(const char *msg) |
836 | { | |
837 | struct strbuf sb = STRBUF_INIT; | |
838 | ||
839 | if (msg && *msg) | |
840 | copy_reflog_msg(&sb, msg); | |
841 | return strbuf_detach(&sb, NULL); | |
842 | } | |
843 | ||
4cb77009 | 844 | int should_autocreate_reflog(const char *refname) |
4e2bef57 | 845 | { |
341fb286 CW |
846 | switch (log_all_ref_updates) { |
847 | case LOG_REFS_ALWAYS: | |
848 | return 1; | |
849 | case LOG_REFS_NORMAL: | |
850 | return starts_with(refname, "refs/heads/") || | |
851 | starts_with(refname, "refs/remotes/") || | |
852 | starts_with(refname, "refs/notes/") || | |
853 | !strcmp(refname, "HEAD"); | |
854 | default: | |
4e2bef57 | 855 | return 0; |
341fb286 | 856 | } |
4e2bef57 DT |
857 | } |
858 | ||
e7e0f26e | 859 | int is_branch(const char *refname) |
c3b0dec5 | 860 | { |
59556548 | 861 | return !strcmp(refname, "HEAD") || starts_with(refname, "refs/heads/"); |
41b625b0 NP |
862 | } |
863 | ||
4207ed28 RS |
864 | struct read_ref_at_cb { |
865 | const char *refname; | |
dddbad72 | 866 | timestamp_t at_time; |
4207ed28 RS |
867 | int cnt; |
868 | int reccnt; | |
8eb36d94 | 869 | struct object_id *oid; |
4207ed28 RS |
870 | int found_it; |
871 | ||
8eb36d94 | 872 | struct object_id ooid; |
873 | struct object_id noid; | |
4207ed28 | 874 | int tz; |
dddbad72 | 875 | timestamp_t date; |
4207ed28 | 876 | char **msg; |
dddbad72 | 877 | timestamp_t *cutoff_time; |
4207ed28 RS |
878 | int *cutoff_tz; |
879 | int *cutoff_cnt; | |
880 | }; | |
881 | ||
95c2a718 DL |
882 | static void set_read_ref_cutoffs(struct read_ref_at_cb *cb, |
883 | timestamp_t timestamp, int tz, const char *message) | |
884 | { | |
885 | if (cb->msg) | |
886 | *cb->msg = xstrdup(message); | |
887 | if (cb->cutoff_time) | |
888 | *cb->cutoff_time = timestamp; | |
889 | if (cb->cutoff_tz) | |
890 | *cb->cutoff_tz = tz; | |
891 | if (cb->cutoff_cnt) | |
892 | *cb->cutoff_cnt = cb->reccnt; | |
893 | } | |
894 | ||
9461d272 | 895 | static int read_ref_at_ent(struct object_id *ooid, struct object_id *noid, |
dddbad72 | 896 | const char *email, timestamp_t timestamp, int tz, |
4207ed28 RS |
897 | const char *message, void *cb_data) |
898 | { | |
899 | struct read_ref_at_cb *cb = cb_data; | |
6436a202 | 900 | int reached_count; |
4207ed28 | 901 | |
4207ed28 RS |
902 | cb->tz = tz; |
903 | cb->date = timestamp; | |
904 | ||
6436a202 DL |
905 | /* |
906 | * It is not possible for cb->cnt == 0 on the first iteration because | |
907 | * that special case is handled in read_ref_at(). | |
908 | */ | |
909 | if (cb->cnt > 0) | |
910 | cb->cnt--; | |
911 | reached_count = cb->cnt == 0 && !is_null_oid(ooid); | |
912 | if (timestamp <= cb->at_time || reached_count) { | |
95c2a718 | 913 | set_read_ref_cutoffs(cb, timestamp, tz, message); |
4207ed28 | 914 | /* |
78fb4579 | 915 | * we have not yet updated cb->[n|o]oid so they still |
4207ed28 RS |
916 | * hold the values for the previous record. |
917 | */ | |
6436a202 DL |
918 | if (!is_null_oid(&cb->ooid) && !oideq(&cb->ooid, noid)) |
919 | warning(_("log for ref %s has gap after %s"), | |
a5481a6c | 920 | cb->refname, show_date(cb->date, cb->tz, DATE_MODE(RFC2822))); |
6436a202 DL |
921 | if (reached_count) |
922 | oidcpy(cb->oid, ooid); | |
923 | else if (!is_null_oid(&cb->ooid) || cb->date == cb->at_time) | |
8eb36d94 | 924 | oidcpy(cb->oid, noid); |
9001dc2a | 925 | else if (!oideq(noid, cb->oid)) |
661558f0 | 926 | warning(_("log for ref %s unexpectedly ended on %s"), |
4207ed28 | 927 | cb->refname, show_date(cb->date, cb->tz, |
a5481a6c | 928 | DATE_MODE(RFC2822))); |
4207ed28 | 929 | cb->found_it = 1; |
4207ed28 | 930 | } |
95c2a718 | 931 | cb->reccnt++; |
8eb36d94 | 932 | oidcpy(&cb->ooid, ooid); |
933 | oidcpy(&cb->noid, noid); | |
6436a202 DL |
934 | return cb->found_it; |
935 | } | |
936 | ||
937 | static int read_ref_at_ent_newest(struct object_id *ooid, struct object_id *noid, | |
938 | const char *email, timestamp_t timestamp, | |
939 | int tz, const char *message, void *cb_data) | |
940 | { | |
941 | struct read_ref_at_cb *cb = cb_data; | |
942 | ||
943 | set_read_ref_cutoffs(cb, timestamp, tz, message); | |
944 | oidcpy(cb->oid, noid); | |
945 | /* We just want the first entry */ | |
946 | return 1; | |
4207ed28 RS |
947 | } |
948 | ||
9461d272 | 949 | static int read_ref_at_ent_oldest(struct object_id *ooid, struct object_id *noid, |
dddbad72 | 950 | const char *email, timestamp_t timestamp, |
4207ed28 RS |
951 | int tz, const char *message, void *cb_data) |
952 | { | |
953 | struct read_ref_at_cb *cb = cb_data; | |
954 | ||
95c2a718 | 955 | set_read_ref_cutoffs(cb, timestamp, tz, message); |
8eb36d94 | 956 | oidcpy(cb->oid, ooid); |
957 | if (is_null_oid(cb->oid)) | |
958 | oidcpy(cb->oid, noid); | |
4207ed28 RS |
959 | /* We just want the first entry */ |
960 | return 1; | |
16d7cc90 JH |
961 | } |
962 | ||
7fdff474 NTND |
963 | int read_ref_at(struct ref_store *refs, const char *refname, |
964 | unsigned int flags, timestamp_t at_time, int cnt, | |
8eb36d94 | 965 | struct object_id *oid, char **msg, |
dddbad72 | 966 | timestamp_t *cutoff_time, int *cutoff_tz, int *cutoff_cnt) |
d556fae2 | 967 | { |
4207ed28 | 968 | struct read_ref_at_cb cb; |
d556fae2 | 969 | |
4207ed28 RS |
970 | memset(&cb, 0, sizeof(cb)); |
971 | cb.refname = refname; | |
972 | cb.at_time = at_time; | |
973 | cb.cnt = cnt; | |
974 | cb.msg = msg; | |
975 | cb.cutoff_time = cutoff_time; | |
976 | cb.cutoff_tz = cutoff_tz; | |
977 | cb.cutoff_cnt = cutoff_cnt; | |
8eb36d94 | 978 | cb.oid = oid; |
4207ed28 | 979 | |
6436a202 DL |
980 | if (cb.cnt == 0) { |
981 | refs_for_each_reflog_ent_reverse(refs, refname, read_ref_at_ent_newest, &cb); | |
982 | return 0; | |
983 | } | |
984 | ||
7fdff474 | 985 | refs_for_each_reflog_ent_reverse(refs, refname, read_ref_at_ent, &cb); |
4207ed28 | 986 | |
c41a87dd | 987 | if (!cb.reccnt) { |
321c89bf | 988 | if (flags & GET_OID_QUIETLY) |
c41a87dd DA |
989 | exit(128); |
990 | else | |
661558f0 | 991 | die(_("log for %s is empty"), refname); |
c41a87dd | 992 | } |
4207ed28 RS |
993 | if (cb.found_it) |
994 | return 0; | |
995 | ||
7fdff474 | 996 | refs_for_each_reflog_ent(refs, refname, read_ref_at_ent_oldest, &cb); |
d556fae2 | 997 | |
16d7cc90 | 998 | return 1; |
d556fae2 | 999 | } |
2ff81662 | 1000 | |
c0fe4e8b NTND |
1001 | struct ref_transaction *ref_store_transaction_begin(struct ref_store *refs, |
1002 | struct strbuf *err) | |
caa4046c | 1003 | { |
c0fe4e8b | 1004 | struct ref_transaction *tr; |
5a603b04 JN |
1005 | assert(err); |
1006 | ||
ca56dadb | 1007 | CALLOC_ARRAY(tr, 1); |
c0fe4e8b NTND |
1008 | tr->ref_store = refs; |
1009 | return tr; | |
1010 | } | |
1011 | ||
1012 | struct ref_transaction *ref_transaction_begin(struct strbuf *err) | |
1013 | { | |
23a3f0cb | 1014 | return ref_store_transaction_begin(get_main_ref_store(the_repository), err); |
caa4046c MH |
1015 | } |
1016 | ||
026bd1d3 | 1017 | void ref_transaction_free(struct ref_transaction *transaction) |
caa4046c | 1018 | { |
43a2dfde | 1019 | size_t i; |
caa4046c | 1020 | |
1b07255c RS |
1021 | if (!transaction) |
1022 | return; | |
1023 | ||
30173b88 MH |
1024 | switch (transaction->state) { |
1025 | case REF_TRANSACTION_OPEN: | |
1026 | case REF_TRANSACTION_CLOSED: | |
1027 | /* OK */ | |
1028 | break; | |
1029 | case REF_TRANSACTION_PREPARED: | |
033abf97 | 1030 | BUG("free called on a prepared reference transaction"); |
30173b88 MH |
1031 | break; |
1032 | default: | |
033abf97 | 1033 | BUG("unexpected reference transaction state"); |
30173b88 MH |
1034 | break; |
1035 | } | |
1036 | ||
db7516ab RS |
1037 | for (i = 0; i < transaction->nr; i++) { |
1038 | free(transaction->updates[i]->msg); | |
88615910 | 1039 | free(transaction->updates[i]); |
db7516ab | 1040 | } |
caa4046c MH |
1041 | free(transaction->updates); |
1042 | free(transaction); | |
1043 | } | |
1044 | ||
71564516 MH |
1045 | struct ref_update *ref_transaction_add_update( |
1046 | struct ref_transaction *transaction, | |
1047 | const char *refname, unsigned int flags, | |
89f3bbdd | 1048 | const struct object_id *new_oid, |
1049 | const struct object_id *old_oid, | |
71564516 | 1050 | const char *msg) |
caa4046c | 1051 | { |
96ffc06f | 1052 | struct ref_update *update; |
71564516 MH |
1053 | |
1054 | if (transaction->state != REF_TRANSACTION_OPEN) | |
033abf97 | 1055 | BUG("update called for transaction that is not open"); |
71564516 | 1056 | |
96ffc06f | 1057 | FLEX_ALLOC_STR(update, refname, refname); |
caa4046c MH |
1058 | ALLOC_GROW(transaction->updates, transaction->nr + 1, transaction->alloc); |
1059 | transaction->updates[transaction->nr++] = update; | |
71564516 MH |
1060 | |
1061 | update->flags = flags; | |
1062 | ||
1063 | if (flags & REF_HAVE_NEW) | |
89f3bbdd | 1064 | oidcpy(&update->new_oid, new_oid); |
71564516 | 1065 | if (flags & REF_HAVE_OLD) |
89f3bbdd | 1066 | oidcpy(&update->old_oid, old_oid); |
523fa69c | 1067 | update->msg = normalize_reflog_message(msg); |
caa4046c MH |
1068 | return update; |
1069 | } | |
1070 | ||
8e34800e RS |
1071 | int ref_transaction_update(struct ref_transaction *transaction, |
1072 | const char *refname, | |
89f3bbdd | 1073 | const struct object_id *new_oid, |
1074 | const struct object_id *old_oid, | |
1d147bdf | 1075 | unsigned int flags, const char *msg, |
8e34800e | 1076 | struct strbuf *err) |
caa4046c | 1077 | { |
5a603b04 JN |
1078 | assert(err); |
1079 | ||
89f3bbdd | 1080 | if ((new_oid && !is_null_oid(new_oid)) ? |
8a679de6 MH |
1081 | check_refname_format(refname, REFNAME_ALLOW_ONELEVEL) : |
1082 | !refname_is_safe(refname)) { | |
661558f0 | 1083 | strbuf_addf(err, _("refusing to update ref with bad name '%s'"), |
d0f810f0 RS |
1084 | refname); |
1085 | return -1; | |
1086 | } | |
1087 | ||
a9bbbcec MH |
1088 | if (flags & ~REF_TRANSACTION_UPDATE_ALLOWED_FLAGS) |
1089 | BUG("illegal flags 0x%x passed to ref_transaction_update()", flags); | |
c788c54c | 1090 | |
89f3bbdd | 1091 | flags |= (new_oid ? REF_HAVE_NEW : 0) | (old_oid ? REF_HAVE_OLD : 0); |
71564516 MH |
1092 | |
1093 | ref_transaction_add_update(transaction, refname, flags, | |
89f3bbdd | 1094 | new_oid, old_oid, msg); |
8e34800e | 1095 | return 0; |
caa4046c MH |
1096 | } |
1097 | ||
b416af5b RS |
1098 | int ref_transaction_create(struct ref_transaction *transaction, |
1099 | const char *refname, | |
89f3bbdd | 1100 | const struct object_id *new_oid, |
fec14ec3 | 1101 | unsigned int flags, const char *msg, |
b416af5b | 1102 | struct strbuf *err) |
caa4046c | 1103 | { |
89f3bbdd | 1104 | if (!new_oid || is_null_oid(new_oid)) |
033abf97 | 1105 | BUG("create called without valid new_oid"); |
89f3bbdd | 1106 | return ref_transaction_update(transaction, refname, new_oid, |
14228447 | 1107 | null_oid(), flags, msg, err); |
caa4046c MH |
1108 | } |
1109 | ||
8c8bdc0d RS |
1110 | int ref_transaction_delete(struct ref_transaction *transaction, |
1111 | const char *refname, | |
89f3bbdd | 1112 | const struct object_id *old_oid, |
fb5a6bb6 | 1113 | unsigned int flags, const char *msg, |
8c8bdc0d | 1114 | struct strbuf *err) |
caa4046c | 1115 | { |
89f3bbdd | 1116 | if (old_oid && is_null_oid(old_oid)) |
033abf97 | 1117 | BUG("delete called with old_oid set to zeros"); |
1d147bdf | 1118 | return ref_transaction_update(transaction, refname, |
14228447 | 1119 | null_oid(), old_oid, |
1d147bdf | 1120 | flags, msg, err); |
caa4046c MH |
1121 | } |
1122 | ||
16180334 MH |
1123 | int ref_transaction_verify(struct ref_transaction *transaction, |
1124 | const char *refname, | |
89f3bbdd | 1125 | const struct object_id *old_oid, |
16180334 MH |
1126 | unsigned int flags, |
1127 | struct strbuf *err) | |
1128 | { | |
89f3bbdd | 1129 | if (!old_oid) |
033abf97 | 1130 | BUG("verify called with old_oid set to NULL"); |
16180334 | 1131 | return ref_transaction_update(transaction, refname, |
89f3bbdd | 1132 | NULL, old_oid, |
16180334 MH |
1133 | flags, NULL, err); |
1134 | } | |
1135 | ||
c0fe4e8b | 1136 | int refs_update_ref(struct ref_store *refs, const char *msg, |
ae077771 | 1137 | const char *refname, const struct object_id *new_oid, |
1138 | const struct object_id *old_oid, unsigned int flags, | |
c0fe4e8b | 1139 | enum action_on_err onerr) |
4738a333 | 1140 | { |
74ec19d4 | 1141 | struct ref_transaction *t = NULL; |
b4d75ac1 | 1142 | struct strbuf err = STRBUF_INIT; |
74ec19d4 | 1143 | int ret = 0; |
b4d75ac1 | 1144 | |
09743417 HWN |
1145 | t = ref_store_transaction_begin(refs, &err); |
1146 | if (!t || | |
1147 | ref_transaction_update(t, refname, new_oid, old_oid, flags, msg, | |
1148 | &err) || | |
1149 | ref_transaction_commit(t, &err)) { | |
1150 | ret = 1; | |
1151 | ref_transaction_free(t); | |
74ec19d4 DT |
1152 | } |
1153 | if (ret) { | |
661558f0 | 1154 | const char *str = _("update_ref failed for ref '%s': %s"); |
b4d75ac1 | 1155 | |
b4d75ac1 RS |
1156 | switch (onerr) { |
1157 | case UPDATE_REFS_MSG_ON_ERR: | |
1158 | error(str, refname, err.buf); | |
1159 | break; | |
1160 | case UPDATE_REFS_DIE_ON_ERR: | |
1161 | die(str, refname, err.buf); | |
1162 | break; | |
1163 | case UPDATE_REFS_QUIET_ON_ERR: | |
1164 | break; | |
1165 | } | |
1166 | strbuf_release(&err); | |
4738a333 | 1167 | return 1; |
b4d75ac1 RS |
1168 | } |
1169 | strbuf_release(&err); | |
74ec19d4 DT |
1170 | if (t) |
1171 | ref_transaction_free(t); | |
b4d75ac1 | 1172 | return 0; |
4738a333 BK |
1173 | } |
1174 | ||
c0fe4e8b | 1175 | int update_ref(const char *msg, const char *refname, |
ae077771 | 1176 | const struct object_id *new_oid, |
1177 | const struct object_id *old_oid, | |
c0fe4e8b NTND |
1178 | unsigned int flags, enum action_on_err onerr) |
1179 | { | |
23a3f0cb | 1180 | return refs_update_ref(get_main_ref_store(the_repository), msg, refname, new_oid, |
ae077771 | 1181 | old_oid, flags, onerr); |
c0fe4e8b NTND |
1182 | } |
1183 | ||
546edf37 NTND |
1184 | char *refs_shorten_unambiguous_ref(struct ref_store *refs, |
1185 | const char *refname, int strict) | |
7c2b3029 JK |
1186 | { |
1187 | int i; | |
1188 | static char **scanf_fmts; | |
1189 | static int nr_rules; | |
1190 | char *short_name; | |
6cd4a898 | 1191 | struct strbuf resolved_buf = STRBUF_INIT; |
7c2b3029 | 1192 | |
7c2b3029 | 1193 | if (!nr_rules) { |
4346663a MH |
1194 | /* |
1195 | * Pre-generate scanf formats from ref_rev_parse_rules[]. | |
1196 | * Generate a format suitable for scanf from a | |
1197 | * ref_rev_parse_rules rule by interpolating "%s" at the | |
1198 | * location of the "%.*s". | |
1199 | */ | |
7c2b3029 | 1200 | size_t total_len = 0; |
84d5633f | 1201 | size_t offset = 0; |
7c2b3029 JK |
1202 | |
1203 | /* the rule list is NULL terminated, count them first */ | |
a4165851 | 1204 | for (nr_rules = 0; ref_rev_parse_rules[nr_rules]; nr_rules++) |
7902fe03 MH |
1205 | /* -2 for strlen("%.*s") - strlen("%s"); +1 for NUL */ |
1206 | total_len += strlen(ref_rev_parse_rules[nr_rules]) - 2 + 1; | |
7c2b3029 | 1207 | |
50492f7b | 1208 | scanf_fmts = xmalloc(st_add(st_mult(sizeof(char *), nr_rules), total_len)); |
7c2b3029 | 1209 | |
84d5633f | 1210 | offset = 0; |
7c2b3029 | 1211 | for (i = 0; i < nr_rules; i++) { |
4346663a | 1212 | assert(offset < total_len); |
84d5633f | 1213 | scanf_fmts[i] = (char *)&scanf_fmts[nr_rules] + offset; |
bf4baf1f JK |
1214 | offset += xsnprintf(scanf_fmts[i], total_len - offset, |
1215 | ref_rev_parse_rules[i], 2, "%s") + 1; | |
7c2b3029 JK |
1216 | } |
1217 | } | |
1218 | ||
1219 | /* bail out if there are no rules */ | |
1220 | if (!nr_rules) | |
dfefa935 | 1221 | return xstrdup(refname); |
7c2b3029 | 1222 | |
dfefa935 MH |
1223 | /* buffer for scanf result, at most refname must fit */ |
1224 | short_name = xstrdup(refname); | |
7c2b3029 JK |
1225 | |
1226 | /* skip first rule, it will always match */ | |
1227 | for (i = nr_rules - 1; i > 0 ; --i) { | |
1228 | int j; | |
6e7b3309 | 1229 | int rules_to_fail = i; |
7c2b3029 JK |
1230 | int short_name_len; |
1231 | ||
dfefa935 | 1232 | if (1 != sscanf(refname, scanf_fmts[i], short_name)) |
7c2b3029 JK |
1233 | continue; |
1234 | ||
1235 | short_name_len = strlen(short_name); | |
1236 | ||
6e7b3309 BW |
1237 | /* |
1238 | * in strict mode, all (except the matched one) rules | |
1239 | * must fail to resolve to a valid non-ambiguous ref | |
1240 | */ | |
1241 | if (strict) | |
1242 | rules_to_fail = nr_rules; | |
1243 | ||
7c2b3029 JK |
1244 | /* |
1245 | * check if the short name resolves to a valid ref, | |
1246 | * but use only rules prior to the matched one | |
1247 | */ | |
6e7b3309 | 1248 | for (j = 0; j < rules_to_fail; j++) { |
7c2b3029 | 1249 | const char *rule = ref_rev_parse_rules[j]; |
7c2b3029 | 1250 | |
6e7b3309 BW |
1251 | /* skip matched rule */ |
1252 | if (i == j) | |
1253 | continue; | |
1254 | ||
7c2b3029 JK |
1255 | /* |
1256 | * the short name is ambiguous, if it resolves | |
1257 | * (with this previous rule) to a valid ref | |
1258 | * read_ref() returns 0 on success | |
1259 | */ | |
6cd4a898 JK |
1260 | strbuf_reset(&resolved_buf); |
1261 | strbuf_addf(&resolved_buf, rule, | |
1262 | short_name_len, short_name); | |
546edf37 | 1263 | if (refs_ref_exists(refs, resolved_buf.buf)) |
7c2b3029 JK |
1264 | break; |
1265 | } | |
1266 | ||
1267 | /* | |
1268 | * short name is non-ambiguous if all previous rules | |
1269 | * haven't resolved to a valid ref | |
1270 | */ | |
6cd4a898 JK |
1271 | if (j == rules_to_fail) { |
1272 | strbuf_release(&resolved_buf); | |
7c2b3029 | 1273 | return short_name; |
6cd4a898 | 1274 | } |
7c2b3029 JK |
1275 | } |
1276 | ||
6cd4a898 | 1277 | strbuf_release(&resolved_buf); |
7c2b3029 | 1278 | free(short_name); |
dfefa935 | 1279 | return xstrdup(refname); |
7c2b3029 | 1280 | } |
daebaa78 | 1281 | |
546edf37 NTND |
1282 | char *shorten_unambiguous_ref(const char *refname, int strict) |
1283 | { | |
1284 | return refs_shorten_unambiguous_ref(get_main_ref_store(the_repository), | |
1285 | refname, strict); | |
1286 | } | |
1287 | ||
daebaa78 JH |
1288 | static struct string_list *hide_refs; |
1289 | ||
1290 | int parse_hide_refs_config(const char *var, const char *value, const char *section) | |
1291 | { | |
ad8c7cda | 1292 | const char *key; |
daebaa78 | 1293 | if (!strcmp("transfer.hiderefs", var) || |
ad8c7cda JK |
1294 | (!parse_config_key(var, section, NULL, NULL, &key) && |
1295 | !strcmp(key, "hiderefs"))) { | |
daebaa78 JH |
1296 | char *ref; |
1297 | int len; | |
1298 | ||
1299 | if (!value) | |
1300 | return config_error_nonbool(var); | |
1301 | ref = xstrdup(value); | |
1302 | len = strlen(ref); | |
1303 | while (len && ref[len - 1] == '/') | |
1304 | ref[--len] = '\0'; | |
1305 | if (!hide_refs) { | |
ca56dadb | 1306 | CALLOC_ARRAY(hide_refs, 1); |
daebaa78 JH |
1307 | hide_refs->strdup_strings = 1; |
1308 | } | |
1309 | string_list_append(hide_refs, ref); | |
1310 | } | |
1311 | return 0; | |
1312 | } | |
1313 | ||
78a766ab | 1314 | int ref_is_hidden(const char *refname, const char *refname_full) |
daebaa78 | 1315 | { |
2bc31d16 | 1316 | int i; |
daebaa78 JH |
1317 | |
1318 | if (!hide_refs) | |
1319 | return 0; | |
2bc31d16 JK |
1320 | for (i = hide_refs->nr - 1; i >= 0; i--) { |
1321 | const char *match = hide_refs->items[i].string; | |
78a766ab | 1322 | const char *subject; |
2bc31d16 | 1323 | int neg = 0; |
7a40a95e | 1324 | const char *p; |
2bc31d16 JK |
1325 | |
1326 | if (*match == '!') { | |
1327 | neg = 1; | |
1328 | match++; | |
1329 | } | |
1330 | ||
78a766ab LF |
1331 | if (*match == '^') { |
1332 | subject = refname_full; | |
1333 | match++; | |
1334 | } else { | |
1335 | subject = refname; | |
1336 | } | |
1337 | ||
1338 | /* refname can be NULL when namespaces are used. */ | |
7a40a95e CC |
1339 | if (subject && |
1340 | skip_prefix(subject, match, &p) && | |
1341 | (!*p || *p == '/')) | |
2bc31d16 | 1342 | return !neg; |
daebaa78 JH |
1343 | } |
1344 | return 0; | |
1345 | } | |
fa5b1830 | 1346 | |
0845122c DT |
1347 | const char *find_descendant_ref(const char *dirname, |
1348 | const struct string_list *extras, | |
1349 | const struct string_list *skip) | |
fa5b1830 | 1350 | { |
0845122c | 1351 | int pos; |
fa5b1830 | 1352 | |
0845122c DT |
1353 | if (!extras) |
1354 | return NULL; | |
fa5b1830 MH |
1355 | |
1356 | /* | |
0845122c DT |
1357 | * Look at the place where dirname would be inserted into |
1358 | * extras. If there is an entry at that position that starts | |
1359 | * with dirname (remember, dirname includes the trailing | |
1360 | * slash) and is not in skip, then we have a conflict. | |
fa5b1830 | 1361 | */ |
0845122c DT |
1362 | for (pos = string_list_find_insert_index(extras, dirname, 0); |
1363 | pos < extras->nr; pos++) { | |
1364 | const char *extra_refname = extras->items[pos].string; | |
fa5b1830 | 1365 | |
0845122c DT |
1366 | if (!starts_with(extra_refname, dirname)) |
1367 | break; | |
1368 | ||
1369 | if (!skip || !string_list_has_string(skip, extra_refname)) | |
1370 | return extra_refname; | |
fa5b1830 | 1371 | } |
0845122c DT |
1372 | return NULL; |
1373 | } | |
fa5b1830 | 1374 | |
62f0b399 | 1375 | int refs_head_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
2bf68ed5 DT |
1376 | { |
1377 | struct object_id oid; | |
1378 | int flag; | |
76887df0 | 1379 | int ignore_errno; |
2bf68ed5 | 1380 | |
76887df0 ÆAB |
1381 | if (refs_werrres_ref_unsafe(refs, "HEAD", RESOLVE_REF_READING, |
1382 | &oid, &flag, &ignore_errno)) | |
2bf68ed5 DT |
1383 | return fn("HEAD", &oid, flag, cb_data); |
1384 | ||
1385 | return 0; | |
1386 | } | |
1387 | ||
1388 | int head_ref(each_ref_fn fn, void *cb_data) | |
1389 | { | |
23a3f0cb | 1390 | return refs_head_ref(get_main_ref_store(the_repository), fn, cb_data); |
2bf68ed5 | 1391 | } |
93770590 | 1392 | |
e121b9cb MH |
1393 | struct ref_iterator *refs_ref_iterator_begin( |
1394 | struct ref_store *refs, | |
9aab952e JK |
1395 | const char *prefix, int trim, |
1396 | enum do_for_each_ref_flags flags) | |
e121b9cb MH |
1397 | { |
1398 | struct ref_iterator *iter; | |
1399 | ||
6d751be4 | 1400 | if (!(flags & DO_FOR_EACH_INCLUDE_BROKEN)) { |
5d1f5b8c JK |
1401 | static int ref_paranoia = -1; |
1402 | ||
6d751be4 | 1403 | if (ref_paranoia < 0) |
968f12fd | 1404 | ref_paranoia = git_env_bool("GIT_REF_PARANOIA", 1); |
6d751be4 JK |
1405 | if (ref_paranoia) { |
1406 | flags |= DO_FOR_EACH_INCLUDE_BROKEN; | |
1407 | flags |= DO_FOR_EACH_OMIT_DANGLING_SYMREFS; | |
1408 | } | |
1409 | } | |
0a0865b8 | 1410 | |
e121b9cb | 1411 | iter = refs->be->iterator_begin(refs, prefix, flags); |
c7599718 MH |
1412 | |
1413 | /* | |
1414 | * `iterator_begin()` already takes care of prefix, but we | |
1415 | * might need to do some trimming: | |
1416 | */ | |
1417 | if (trim) | |
1418 | iter = prefix_ref_iterator_begin(iter, "", trim); | |
e121b9cb | 1419 | |
8738a8a4 MH |
1420 | /* Sanity check for subclasses: */ |
1421 | if (!iter->ordered) | |
1422 | BUG("reference iterator is not ordered"); | |
1423 | ||
e121b9cb MH |
1424 | return iter; |
1425 | } | |
1426 | ||
4c4de895 MH |
1427 | /* |
1428 | * Call fn for each reference in the specified submodule for which the | |
1429 | * refname begins with prefix. If trim is non-zero, then trim that | |
1430 | * many characters off the beginning of each refname before passing | |
1431 | * the refname to fn. flags can be DO_FOR_EACH_INCLUDE_BROKEN to | |
1432 | * include broken references in the iteration. If fn ever returns a | |
1433 | * non-zero value, stop the iteration and return that value; | |
1434 | * otherwise, return 0. | |
1435 | */ | |
4a6067cd SB |
1436 | static int do_for_each_repo_ref(struct repository *r, const char *prefix, |
1437 | each_repo_ref_fn fn, int trim, int flags, | |
1438 | void *cb_data) | |
1439 | { | |
1440 | struct ref_iterator *iter; | |
1441 | struct ref_store *refs = get_main_ref_store(r); | |
1442 | ||
1443 | if (!refs) | |
1444 | return 0; | |
1445 | ||
1446 | iter = refs_ref_iterator_begin(refs, prefix, trim, flags); | |
1447 | ||
1448 | return do_for_each_repo_ref_iterator(r, iter, fn, cb_data); | |
1449 | } | |
1450 | ||
1451 | struct do_for_each_ref_help { | |
1452 | each_ref_fn *fn; | |
1453 | void *cb_data; | |
1454 | }; | |
1455 | ||
1456 | static int do_for_each_ref_helper(struct repository *r, | |
1457 | const char *refname, | |
1458 | const struct object_id *oid, | |
1459 | int flags, | |
1460 | void *cb_data) | |
1461 | { | |
1462 | struct do_for_each_ref_help *hp = cb_data; | |
1463 | ||
1464 | return hp->fn(refname, oid, flags, hp->cb_data); | |
1465 | } | |
1466 | ||
7d2df051 | 1467 | static int do_for_each_ref(struct ref_store *refs, const char *prefix, |
9aab952e JK |
1468 | each_ref_fn fn, int trim, |
1469 | enum do_for_each_ref_flags flags, void *cb_data) | |
4c4de895 MH |
1470 | { |
1471 | struct ref_iterator *iter; | |
4a6067cd | 1472 | struct do_for_each_ref_help hp = { fn, cb_data }; |
4c4de895 | 1473 | |
00eebe35 MH |
1474 | if (!refs) |
1475 | return 0; | |
1476 | ||
e121b9cb | 1477 | iter = refs_ref_iterator_begin(refs, prefix, trim, flags); |
4c4de895 | 1478 | |
4a6067cd SB |
1479 | return do_for_each_repo_ref_iterator(the_repository, iter, |
1480 | do_for_each_ref_helper, &hp); | |
4c4de895 MH |
1481 | } |
1482 | ||
7d2df051 NTND |
1483 | int refs_for_each_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
1484 | { | |
1485 | return do_for_each_ref(refs, "", fn, 0, 0, cb_data); | |
1486 | } | |
1487 | ||
93770590 DT |
1488 | int for_each_ref(each_ref_fn fn, void *cb_data) |
1489 | { | |
23a3f0cb | 1490 | return refs_for_each_ref(get_main_ref_store(the_repository), fn, cb_data); |
93770590 DT |
1491 | } |
1492 | ||
7d2df051 NTND |
1493 | int refs_for_each_ref_in(struct ref_store *refs, const char *prefix, |
1494 | each_ref_fn fn, void *cb_data) | |
1495 | { | |
1496 | return do_for_each_ref(refs, prefix, fn, strlen(prefix), 0, cb_data); | |
93770590 DT |
1497 | } |
1498 | ||
1499 | int for_each_ref_in(const char *prefix, each_ref_fn fn, void *cb_data) | |
1500 | { | |
23a3f0cb | 1501 | return refs_for_each_ref_in(get_main_ref_store(the_repository), prefix, fn, cb_data); |
93770590 DT |
1502 | } |
1503 | ||
67985e4e | 1504 | int for_each_fullref_in(const char *prefix, each_ref_fn fn, void *cb_data) |
93770590 | 1505 | { |
23a3f0cb | 1506 | return do_for_each_ref(get_main_ref_store(the_repository), |
67985e4e | 1507 | prefix, fn, 0, 0, cb_data); |
93770590 DT |
1508 | } |
1509 | ||
073cf63c | 1510 | int refs_for_each_fullref_in(struct ref_store *refs, const char *prefix, |
67985e4e | 1511 | each_ref_fn fn, void *cb_data) |
03df567f | 1512 | { |
67985e4e | 1513 | return do_for_each_ref(refs, prefix, fn, 0, 0, cb_data); |
03df567f MH |
1514 | } |
1515 | ||
212e0f7e | 1516 | int for_each_replace_ref(struct repository *r, each_repo_ref_fn fn, void *cb_data) |
93770590 | 1517 | { |
212e0f7e SB |
1518 | return do_for_each_repo_ref(r, git_replace_ref_base, fn, |
1519 | strlen(git_replace_ref_base), | |
1520 | DO_FOR_EACH_INCLUDE_BROKEN, cb_data); | |
93770590 DT |
1521 | } |
1522 | ||
1523 | int for_each_namespaced_ref(each_ref_fn fn, void *cb_data) | |
1524 | { | |
1525 | struct strbuf buf = STRBUF_INIT; | |
1526 | int ret; | |
1527 | strbuf_addf(&buf, "%srefs/", get_git_namespace()); | |
23a3f0cb | 1528 | ret = do_for_each_ref(get_main_ref_store(the_repository), |
7d2df051 | 1529 | buf.buf, fn, 0, 0, cb_data); |
93770590 DT |
1530 | strbuf_release(&buf); |
1531 | return ret; | |
1532 | } | |
1533 | ||
7d2df051 | 1534 | int refs_for_each_rawref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
93770590 | 1535 | { |
7d2df051 | 1536 | return do_for_each_ref(refs, "", fn, 0, |
93770590 DT |
1537 | DO_FOR_EACH_INCLUDE_BROKEN, cb_data); |
1538 | } | |
2d0663b2 | 1539 | |
7d2df051 NTND |
1540 | int for_each_rawref(each_ref_fn fn, void *cb_data) |
1541 | { | |
23a3f0cb | 1542 | return refs_for_each_rawref(get_main_ref_store(the_repository), fn, cb_data); |
7d2df051 NTND |
1543 | } |
1544 | ||
16b1985b TB |
1545 | static int qsort_strcmp(const void *va, const void *vb) |
1546 | { | |
1547 | const char *a = *(const char **)va; | |
1548 | const char *b = *(const char **)vb; | |
1549 | ||
1550 | return strcmp(a, b); | |
1551 | } | |
1552 | ||
1553 | static void find_longest_prefixes_1(struct string_list *out, | |
1554 | struct strbuf *prefix, | |
1555 | const char **patterns, size_t nr) | |
1556 | { | |
1557 | size_t i; | |
1558 | ||
1559 | for (i = 0; i < nr; i++) { | |
1560 | char c = patterns[i][prefix->len]; | |
1561 | if (!c || is_glob_special(c)) { | |
1562 | string_list_append(out, prefix->buf); | |
1563 | return; | |
1564 | } | |
1565 | } | |
1566 | ||
1567 | i = 0; | |
1568 | while (i < nr) { | |
1569 | size_t end; | |
1570 | ||
1571 | /* | |
1572 | * Set "end" to the index of the element _after_ the last one | |
1573 | * in our group. | |
1574 | */ | |
1575 | for (end = i + 1; end < nr; end++) { | |
1576 | if (patterns[i][prefix->len] != patterns[end][prefix->len]) | |
1577 | break; | |
1578 | } | |
1579 | ||
1580 | strbuf_addch(prefix, patterns[i][prefix->len]); | |
1581 | find_longest_prefixes_1(out, prefix, patterns + i, end - i); | |
1582 | strbuf_setlen(prefix, prefix->len - 1); | |
1583 | ||
1584 | i = end; | |
1585 | } | |
1586 | } | |
1587 | ||
1588 | static void find_longest_prefixes(struct string_list *out, | |
1589 | const char **patterns) | |
1590 | { | |
1591 | struct strvec sorted = STRVEC_INIT; | |
1592 | struct strbuf prefix = STRBUF_INIT; | |
1593 | ||
1594 | strvec_pushv(&sorted, patterns); | |
1595 | QSORT(sorted.v, sorted.nr, qsort_strcmp); | |
1596 | ||
1597 | find_longest_prefixes_1(out, &prefix, sorted.v, sorted.nr); | |
1598 | ||
1599 | strvec_clear(&sorted); | |
1600 | strbuf_release(&prefix); | |
1601 | } | |
1602 | ||
1603 | int for_each_fullref_in_prefixes(const char *namespace, | |
1604 | const char **patterns, | |
67985e4e | 1605 | each_ref_fn fn, void *cb_data) |
16b1985b TB |
1606 | { |
1607 | struct string_list prefixes = STRING_LIST_INIT_DUP; | |
1608 | struct string_list_item *prefix; | |
1609 | struct strbuf buf = STRBUF_INIT; | |
1610 | int ret = 0, namespace_len; | |
1611 | ||
1612 | find_longest_prefixes(&prefixes, patterns); | |
1613 | ||
1614 | if (namespace) | |
1615 | strbuf_addstr(&buf, namespace); | |
1616 | namespace_len = buf.len; | |
1617 | ||
1618 | for_each_string_list_item(prefix, &prefixes) { | |
1619 | strbuf_addstr(&buf, prefix->string); | |
67985e4e | 1620 | ret = for_each_fullref_in(buf.buf, fn, cb_data); |
16b1985b TB |
1621 | if (ret) |
1622 | break; | |
1623 | strbuf_setlen(&buf, namespace_len); | |
1624 | } | |
1625 | ||
1626 | string_list_clear(&prefixes, 0); | |
1627 | strbuf_release(&buf); | |
1628 | return ret; | |
1629 | } | |
1630 | ||
e8115302 HWN |
1631 | static int refs_read_special_head(struct ref_store *ref_store, |
1632 | const char *refname, struct object_id *oid, | |
df3458e9 HWN |
1633 | struct strbuf *referent, unsigned int *type, |
1634 | int *failure_errno) | |
e8115302 HWN |
1635 | { |
1636 | struct strbuf full_path = STRBUF_INIT; | |
1637 | struct strbuf content = STRBUF_INIT; | |
1638 | int result = -1; | |
1639 | strbuf_addf(&full_path, "%s/%s", ref_store->gitdir, refname); | |
1640 | ||
1641 | if (strbuf_read_file(&content, full_path.buf, 0) < 0) | |
1642 | goto done; | |
1643 | ||
df3458e9 HWN |
1644 | result = parse_loose_ref_contents(content.buf, oid, referent, type, |
1645 | failure_errno); | |
e8115302 HWN |
1646 | |
1647 | done: | |
1648 | strbuf_release(&full_path); | |
1649 | strbuf_release(&content); | |
1650 | return result; | |
1651 | } | |
1652 | ||
8b72fea7 HWN |
1653 | int refs_read_raw_ref(struct ref_store *ref_store, const char *refname, |
1654 | struct object_id *oid, struct strbuf *referent, | |
1655 | unsigned int *type, int *failure_errno) | |
470be518 | 1656 | { |
8b72fea7 | 1657 | assert(failure_errno); |
e8115302 HWN |
1658 | if (!strcmp(refname, "FETCH_HEAD") || !strcmp(refname, "MERGE_HEAD")) { |
1659 | return refs_read_special_head(ref_store, refname, oid, referent, | |
df3458e9 | 1660 | type, failure_errno); |
e8115302 HWN |
1661 | } |
1662 | ||
1663 | return ref_store->be->read_raw_ref(ref_store, refname, oid, referent, | |
8b72fea7 | 1664 | type, failure_errno); |
470be518 MH |
1665 | } |
1666 | ||
ef18119d | 1667 | const char *refs_werrres_ref_unsafe(struct ref_store *refs, |
3c0cb0cb MH |
1668 | const char *refname, |
1669 | int resolve_flags, | |
ef18119d ÆAB |
1670 | struct object_id *oid, |
1671 | int *flags, int *failure_errno) | |
2d0663b2 DT |
1672 | { |
1673 | static struct strbuf sb_refname = STRBUF_INIT; | |
54fad661 | 1674 | struct object_id unused_oid; |
2d0663b2 DT |
1675 | int unused_flags; |
1676 | int symref_count; | |
1677 | ||
ef18119d ÆAB |
1678 | assert(failure_errno); |
1679 | ||
49e61479 | 1680 | if (!oid) |
1681 | oid = &unused_oid; | |
2d0663b2 DT |
1682 | if (!flags) |
1683 | flags = &unused_flags; | |
1684 | ||
1685 | *flags = 0; | |
1686 | ||
1687 | if (check_refname_format(refname, REFNAME_ALLOW_ONELEVEL)) { | |
1688 | if (!(resolve_flags & RESOLVE_REF_ALLOW_BAD_NAME) || | |
1689 | !refname_is_safe(refname)) { | |
ef18119d | 1690 | *failure_errno = EINVAL; |
2d0663b2 DT |
1691 | return NULL; |
1692 | } | |
1693 | ||
1694 | /* | |
1695 | * dwim_ref() uses REF_ISBROKEN to distinguish between | |
1696 | * missing refs and refs that were present but invalid, | |
1697 | * to complain about the latter to stderr. | |
1698 | * | |
1699 | * We don't know whether the ref exists, so don't set | |
1700 | * REF_ISBROKEN yet. | |
1701 | */ | |
1702 | *flags |= REF_BAD_NAME; | |
1703 | } | |
1704 | ||
1705 | for (symref_count = 0; symref_count < SYMREF_MAXDEPTH; symref_count++) { | |
1706 | unsigned int read_flags = 0; | |
1707 | ||
8b72fea7 HWN |
1708 | if (refs_read_raw_ref(refs, refname, oid, &sb_refname, |
1709 | &read_flags, failure_errno)) { | |
2d0663b2 | 1710 | *flags |= read_flags; |
ef18119d ÆAB |
1711 | if (errno) |
1712 | *failure_errno = errno; | |
a1c1d817 JK |
1713 | |
1714 | /* In reading mode, refs must eventually resolve */ | |
1715 | if (resolve_flags & RESOLVE_REF_READING) | |
1716 | return NULL; | |
1717 | ||
1718 | /* | |
1719 | * Otherwise a missing ref is OK. But the files backend | |
1720 | * may show errors besides ENOENT if there are | |
1721 | * similarly-named refs. | |
1722 | */ | |
ef18119d ÆAB |
1723 | if (*failure_errno != ENOENT && |
1724 | *failure_errno != EISDIR && | |
1725 | *failure_errno != ENOTDIR) | |
2d0663b2 | 1726 | return NULL; |
a1c1d817 | 1727 | |
49e61479 | 1728 | oidclr(oid); |
2d0663b2 DT |
1729 | if (*flags & REF_BAD_NAME) |
1730 | *flags |= REF_ISBROKEN; | |
1731 | return refname; | |
1732 | } | |
1733 | ||
1734 | *flags |= read_flags; | |
1735 | ||
1736 | if (!(read_flags & REF_ISSYMREF)) { | |
1737 | if (*flags & REF_BAD_NAME) { | |
49e61479 | 1738 | oidclr(oid); |
2d0663b2 DT |
1739 | *flags |= REF_ISBROKEN; |
1740 | } | |
1741 | return refname; | |
1742 | } | |
1743 | ||
1744 | refname = sb_refname.buf; | |
1745 | if (resolve_flags & RESOLVE_REF_NO_RECURSE) { | |
49e61479 | 1746 | oidclr(oid); |
2d0663b2 DT |
1747 | return refname; |
1748 | } | |
1749 | if (check_refname_format(refname, REFNAME_ALLOW_ONELEVEL)) { | |
1750 | if (!(resolve_flags & RESOLVE_REF_ALLOW_BAD_NAME) || | |
1751 | !refname_is_safe(refname)) { | |
ef18119d | 1752 | *failure_errno = EINVAL; |
2d0663b2 DT |
1753 | return NULL; |
1754 | } | |
1755 | ||
1756 | *flags |= REF_ISBROKEN | REF_BAD_NAME; | |
1757 | } | |
1758 | } | |
1759 | ||
ef18119d | 1760 | *failure_errno = ELOOP; |
2d0663b2 DT |
1761 | return NULL; |
1762 | } | |
00eebe35 | 1763 | |
ef18119d ÆAB |
1764 | const char *refs_resolve_ref_unsafe(struct ref_store *refs, const char *refname, |
1765 | int resolve_flags, struct object_id *oid, | |
1766 | int *flags) | |
1767 | { | |
1768 | int failure_errno = 0; | |
1769 | const char *refn; | |
1770 | refn = refs_werrres_ref_unsafe(refs, refname, resolve_flags, | |
1771 | oid, flags, &failure_errno); | |
1772 | if (!refn) | |
1773 | errno = failure_errno; | |
1774 | return refn; | |
1775 | } | |
1776 | ||
6fb5acfd DT |
1777 | /* backend functions */ |
1778 | int refs_init_db(struct strbuf *err) | |
1779 | { | |
23a3f0cb | 1780 | struct ref_store *refs = get_main_ref_store(the_repository); |
6fb5acfd DT |
1781 | |
1782 | return refs->be->init_db(refs, err); | |
1783 | } | |
1784 | ||
bd40dcda | 1785 | const char *resolve_ref_unsafe(const char *refname, int resolve_flags, |
49e61479 | 1786 | struct object_id *oid, int *flags) |
bd40dcda | 1787 | { |
ed90f041 ÆAB |
1788 | int ignore_errno; |
1789 | ||
1790 | return refs_werrres_ref_unsafe(get_main_ref_store(the_repository), refname, | |
1791 | resolve_flags, oid, flags, &ignore_errno); | |
bd40dcda MH |
1792 | } |
1793 | ||
a8355bb7 | 1794 | int resolve_gitlink_ref(const char *submodule, const char *refname, |
a98e6101 | 1795 | struct object_id *oid) |
424dcc76 | 1796 | { |
424dcc76 MH |
1797 | struct ref_store *refs; |
1798 | int flags; | |
db7a3d25 | 1799 | int ignore_errno; |
424dcc76 | 1800 | |
29babbee | 1801 | refs = get_submodule_ref_store(submodule); |
48a8475f | 1802 | |
424dcc76 MH |
1803 | if (!refs) |
1804 | return -1; | |
1805 | ||
db7a3d25 ÆAB |
1806 | if (!refs_werrres_ref_unsafe(refs, refname, 0, oid, &flags, |
1807 | &ignore_errno) || is_null_oid(oid)) | |
424dcc76 MH |
1808 | return -1; |
1809 | return 0; | |
1810 | } | |
1811 | ||
0c064d90 | 1812 | struct ref_store_hash_entry |
7d4558c4 | 1813 | { |
e2b5038d | 1814 | struct hashmap_entry ent; |
7d4558c4 MH |
1815 | |
1816 | struct ref_store *refs; | |
1817 | ||
0c064d90 NTND |
1818 | /* NUL-terminated identifier of the ref store: */ |
1819 | char name[FLEX_ARRAY]; | |
7d4558c4 MH |
1820 | }; |
1821 | ||
7663cdc8 | 1822 | static int ref_store_hash_cmp(const void *unused_cmp_data, |
939af16e EW |
1823 | const struct hashmap_entry *eptr, |
1824 | const struct hashmap_entry *entry_or_key, | |
7d4558c4 MH |
1825 | const void *keydata) |
1826 | { | |
939af16e EW |
1827 | const struct ref_store_hash_entry *e1, *e2; |
1828 | const char *name; | |
1829 | ||
1830 | e1 = container_of(eptr, const struct ref_store_hash_entry, ent); | |
1831 | e2 = container_of(entry_or_key, const struct ref_store_hash_entry, ent); | |
1832 | name = keydata ? keydata : e2->name; | |
7d4558c4 | 1833 | |
0c064d90 | 1834 | return strcmp(e1->name, name); |
7d4558c4 MH |
1835 | } |
1836 | ||
0c064d90 NTND |
1837 | static struct ref_store_hash_entry *alloc_ref_store_hash_entry( |
1838 | const char *name, struct ref_store *refs) | |
7d4558c4 | 1839 | { |
0c064d90 | 1840 | struct ref_store_hash_entry *entry; |
7d4558c4 | 1841 | |
0c064d90 | 1842 | FLEX_ALLOC_STR(entry, name, name); |
d22245a2 | 1843 | hashmap_entry_init(&entry->ent, strhash(name)); |
7d4558c4 MH |
1844 | entry->refs = refs; |
1845 | return entry; | |
1846 | } | |
1847 | ||
7d4558c4 MH |
1848 | /* A hashmap of ref_stores, stored by submodule name: */ |
1849 | static struct hashmap submodule_ref_stores; | |
00eebe35 | 1850 | |
17eff96b NTND |
1851 | /* A hashmap of ref_stores, stored by worktree id: */ |
1852 | static struct hashmap worktree_ref_stores; | |
1853 | ||
c468da4e | 1854 | /* |
0c064d90 NTND |
1855 | * Look up a ref store by name. If that ref_store hasn't been |
1856 | * registered yet, return NULL. | |
c468da4e | 1857 | */ |
0c064d90 NTND |
1858 | static struct ref_store *lookup_ref_store_map(struct hashmap *map, |
1859 | const char *name) | |
00eebe35 | 1860 | { |
0c064d90 | 1861 | struct ref_store_hash_entry *entry; |
f23a4651 | 1862 | unsigned int hash; |
00eebe35 | 1863 | |
0c064d90 | 1864 | if (!map->tablesize) |
7d4558c4 MH |
1865 | /* It's initialized on demand in register_ref_store(). */ |
1866 | return NULL; | |
620a66b9 | 1867 | |
f23a4651 EW |
1868 | hash = strhash(name); |
1869 | entry = hashmap_get_entry_from_hash(map, hash, name, | |
1870 | struct ref_store_hash_entry, ent); | |
7d4558c4 | 1871 | return entry ? entry->refs : NULL; |
00eebe35 MH |
1872 | } |
1873 | ||
c468da4e MH |
1874 | /* |
1875 | * Create, record, and return a ref_store instance for the specified | |
5d0bc90e | 1876 | * gitdir. |
c468da4e | 1877 | */ |
9e7ec634 NTND |
1878 | static struct ref_store *ref_store_init(const char *gitdir, |
1879 | unsigned int flags) | |
00eebe35 MH |
1880 | { |
1881 | const char *be_name = "files"; | |
1882 | struct ref_storage_be *be = find_ref_storage_backend(be_name); | |
ba88add5 | 1883 | struct ref_store *refs; |
00eebe35 MH |
1884 | |
1885 | if (!be) | |
033abf97 | 1886 | BUG("reference backend %s is unknown", be_name); |
00eebe35 | 1887 | |
9e7ec634 | 1888 | refs = be->init(gitdir, flags); |
ba88add5 | 1889 | return refs; |
00eebe35 MH |
1890 | } |
1891 | ||
64a74161 | 1892 | struct ref_store *get_main_ref_store(struct repository *r) |
24c8407e | 1893 | { |
02204610 JK |
1894 | if (r->refs_private) |
1895 | return r->refs_private; | |
24c8407e | 1896 | |
2dc417ab JK |
1897 | if (!r->gitdir) |
1898 | BUG("attempting to get main_ref_store outside of repository"); | |
1899 | ||
02204610 | 1900 | r->refs_private = ref_store_init(r->gitdir, REF_STORE_ALL_CAPS); |
4441f427 | 1901 | r->refs_private = maybe_debug_wrap_ref_store(r->gitdir, r->refs_private); |
02204610 | 1902 | return r->refs_private; |
378dc910 NTND |
1903 | } |
1904 | ||
1905 | /* | |
0c064d90 NTND |
1906 | * Associate a ref store with a name. It is a fatal error to call this |
1907 | * function twice for the same name. | |
378dc910 | 1908 | */ |
0c064d90 NTND |
1909 | static void register_ref_store_map(struct hashmap *map, |
1910 | const char *type, | |
1911 | struct ref_store *refs, | |
1912 | const char *name) | |
378dc910 | 1913 | { |
26b455f2 EW |
1914 | struct ref_store_hash_entry *entry; |
1915 | ||
0c064d90 | 1916 | if (!map->tablesize) |
7663cdc8 | 1917 | hashmap_init(map, ref_store_hash_cmp, NULL, 0); |
378dc910 | 1918 | |
26b455f2 EW |
1919 | entry = alloc_ref_store_hash_entry(name, refs); |
1920 | if (hashmap_put(map, &entry->ent)) | |
033abf97 | 1921 | BUG("%s ref_store '%s' initialized twice", type, name); |
24c8407e NTND |
1922 | } |
1923 | ||
18d0002d | 1924 | struct ref_store *get_submodule_ref_store(const char *submodule) |
00eebe35 | 1925 | { |
126c9e05 | 1926 | struct strbuf submodule_sb = STRBUF_INIT; |
00eebe35 | 1927 | struct ref_store *refs; |
29babbee NTND |
1928 | char *to_free = NULL; |
1929 | size_t len; | |
00eebe35 | 1930 | |
82a150f2 NTND |
1931 | if (!submodule) |
1932 | return NULL; | |
1933 | ||
873ea90d NTND |
1934 | len = strlen(submodule); |
1935 | while (len && is_dir_sep(submodule[len - 1])) | |
1936 | len--; | |
1937 | if (!len) | |
1938 | return NULL; | |
00eebe35 | 1939 | |
29babbee NTND |
1940 | if (submodule[len]) |
1941 | /* We need to strip off one or more trailing slashes */ | |
1942 | submodule = to_free = xmemdupz(submodule, len); | |
00eebe35 | 1943 | |
0c064d90 | 1944 | refs = lookup_ref_store_map(&submodule_ref_stores, submodule); |
126c9e05 | 1945 | if (refs) |
2c616c17 | 1946 | goto done; |
00eebe35 | 1947 | |
126c9e05 | 1948 | strbuf_addstr(&submodule_sb, submodule); |
2c616c17 NTND |
1949 | if (!is_nonbare_repository_dir(&submodule_sb)) |
1950 | goto done; | |
00eebe35 | 1951 | |
2c616c17 NTND |
1952 | if (submodule_to_gitdir(&submodule_sb, submodule)) |
1953 | goto done; | |
00eebe35 | 1954 | |
9e7ec634 NTND |
1955 | /* assume that add_submodule_odb() has been called */ |
1956 | refs = ref_store_init(submodule_sb.buf, | |
1957 | REF_STORE_READ | REF_STORE_ODB); | |
0c064d90 NTND |
1958 | register_ref_store_map(&submodule_ref_stores, "submodule", |
1959 | refs, submodule); | |
5d0bc90e | 1960 | |
2c616c17 | 1961 | done: |
5d0bc90e | 1962 | strbuf_release(&submodule_sb); |
29babbee NTND |
1963 | free(to_free); |
1964 | ||
00eebe35 MH |
1965 | return refs; |
1966 | } | |
1967 | ||
17eff96b NTND |
1968 | struct ref_store *get_worktree_ref_store(const struct worktree *wt) |
1969 | { | |
1970 | struct ref_store *refs; | |
1971 | const char *id; | |
1972 | ||
1973 | if (wt->is_current) | |
23a3f0cb | 1974 | return get_main_ref_store(the_repository); |
17eff96b NTND |
1975 | |
1976 | id = wt->id ? wt->id : "/"; | |
1977 | refs = lookup_ref_store_map(&worktree_ref_stores, id); | |
1978 | if (refs) | |
1979 | return refs; | |
1980 | ||
1981 | if (wt->id) | |
1982 | refs = ref_store_init(git_common_path("worktrees/%s", wt->id), | |
1983 | REF_STORE_ALL_CAPS); | |
1984 | else | |
1985 | refs = ref_store_init(get_git_common_dir(), | |
1986 | REF_STORE_ALL_CAPS); | |
1987 | ||
1988 | if (refs) | |
1989 | register_ref_store_map(&worktree_ref_stores, "worktree", | |
1990 | refs, id); | |
1991 | return refs; | |
1992 | } | |
1993 | ||
620a66b9 | 1994 | void base_ref_store_init(struct ref_store *refs, |
fbfd0a29 | 1995 | const struct ref_storage_be *be) |
00eebe35 | 1996 | { |
620a66b9 | 1997 | refs->be = be; |
00eebe35 | 1998 | } |
127b42a1 RS |
1999 | |
2000 | /* backend functions */ | |
7d2df051 | 2001 | int refs_pack_refs(struct ref_store *refs, unsigned int flags) |
8231527e | 2002 | { |
8231527e MH |
2003 | return refs->be->pack_refs(refs, flags); |
2004 | } | |
2005 | ||
36a31792 | 2006 | int peel_iterated_oid(const struct object_id *base, struct object_id *peeled) |
7d2df051 | 2007 | { |
36a31792 JK |
2008 | if (current_ref_iter && |
2009 | (current_ref_iter->oid == base || | |
2010 | oideq(current_ref_iter->oid, base))) | |
2011 | return ref_iterator_peel(current_ref_iter, peeled); | |
ba1c052f | 2012 | |
617480d7 | 2013 | return peel_object(base, peeled) ? -1 : 0; |
7d2df051 | 2014 | } |
bd427cf2 | 2015 | |
7d2df051 NTND |
2016 | int refs_create_symref(struct ref_store *refs, |
2017 | const char *ref_target, | |
2018 | const char *refs_heads_master, | |
2019 | const char *logmsg) | |
2020 | { | |
523fa69c JH |
2021 | char *msg; |
2022 | int retval; | |
2023 | ||
2024 | msg = normalize_reflog_message(logmsg); | |
2025 | retval = refs->be->create_symref(refs, ref_target, refs_heads_master, | |
2026 | msg); | |
2027 | free(msg); | |
2028 | return retval; | |
bd427cf2 MH |
2029 | } |
2030 | ||
284689ba MH |
2031 | int create_symref(const char *ref_target, const char *refs_heads_master, |
2032 | const char *logmsg) | |
2033 | { | |
23a3f0cb | 2034 | return refs_create_symref(get_main_ref_store(the_repository), ref_target, |
7d2df051 | 2035 | refs_heads_master, logmsg); |
284689ba MH |
2036 | } |
2037 | ||
2ced105c MH |
2038 | int ref_update_reject_duplicates(struct string_list *refnames, |
2039 | struct strbuf *err) | |
2040 | { | |
a552e50e | 2041 | size_t i, n = refnames->nr; |
2ced105c MH |
2042 | |
2043 | assert(err); | |
2044 | ||
8556f8d6 MH |
2045 | for (i = 1; i < n; i++) { |
2046 | int cmp = strcmp(refnames->items[i - 1].string, | |
2047 | refnames->items[i].string); | |
2048 | ||
2049 | if (!cmp) { | |
2ced105c | 2050 | strbuf_addf(err, |
661558f0 | 2051 | _("multiple updates for ref '%s' not allowed"), |
2ced105c MH |
2052 | refnames->items[i].string); |
2053 | return 1; | |
8556f8d6 | 2054 | } else if (cmp > 0) { |
033abf97 | 2055 | BUG("ref_update_reject_duplicates() received unsorted list"); |
2ced105c | 2056 | } |
8556f8d6 | 2057 | } |
2ced105c MH |
2058 | return 0; |
2059 | } | |
2060 | ||
67541597 PS |
2061 | static int run_transaction_hook(struct ref_transaction *transaction, |
2062 | const char *state) | |
2063 | { | |
2064 | struct child_process proc = CHILD_PROCESS_INIT; | |
2065 | struct strbuf buf = STRBUF_INIT; | |
0a0fbbe3 | 2066 | const char *hook; |
67541597 PS |
2067 | int ret = 0, i; |
2068 | ||
0a0fbbe3 | 2069 | hook = find_hook("reference-transaction"); |
67541597 | 2070 | if (!hook) |
67541597 | 2071 | return ret; |
67541597 | 2072 | |
c972bf4c | 2073 | strvec_pushl(&proc.args, hook, state, NULL); |
67541597 PS |
2074 | proc.in = -1; |
2075 | proc.stdout_to_stderr = 1; | |
2076 | proc.trace2_hook_name = "reference-transaction"; | |
2077 | ||
2078 | ret = start_command(&proc); | |
2079 | if (ret) | |
2080 | return ret; | |
2081 | ||
2082 | sigchain_push(SIGPIPE, SIG_IGN); | |
2083 | ||
2084 | for (i = 0; i < transaction->nr; i++) { | |
2085 | struct ref_update *update = transaction->updates[i]; | |
2086 | ||
2087 | strbuf_reset(&buf); | |
2088 | strbuf_addf(&buf, "%s %s %s\n", | |
2089 | oid_to_hex(&update->old_oid), | |
2090 | oid_to_hex(&update->new_oid), | |
2091 | update->refname); | |
2092 | ||
2093 | if (write_in_full(proc.in, buf.buf, buf.len) < 0) { | |
2094 | if (errno != EPIPE) | |
2095 | ret = -1; | |
2096 | break; | |
2097 | } | |
2098 | } | |
2099 | ||
2100 | close(proc.in); | |
2101 | sigchain_pop(SIGPIPE); | |
2102 | strbuf_release(&buf); | |
2103 | ||
2104 | ret |= finish_command(&proc); | |
2105 | return ret; | |
2106 | } | |
2107 | ||
30173b88 MH |
2108 | int ref_transaction_prepare(struct ref_transaction *transaction, |
2109 | struct strbuf *err) | |
127b42a1 | 2110 | { |
c0fe4e8b | 2111 | struct ref_store *refs = transaction->ref_store; |
67541597 | 2112 | int ret; |
127b42a1 | 2113 | |
8d4240d3 MH |
2114 | switch (transaction->state) { |
2115 | case REF_TRANSACTION_OPEN: | |
2116 | /* Good. */ | |
2117 | break; | |
30173b88 | 2118 | case REF_TRANSACTION_PREPARED: |
033abf97 | 2119 | BUG("prepare called twice on reference transaction"); |
30173b88 | 2120 | break; |
8d4240d3 | 2121 | case REF_TRANSACTION_CLOSED: |
033abf97 | 2122 | BUG("prepare called on a closed reference transaction"); |
8d4240d3 MH |
2123 | break; |
2124 | default: | |
033abf97 | 2125 | BUG("unexpected reference transaction state"); |
8d4240d3 MH |
2126 | break; |
2127 | } | |
2128 | ||
d8f4481c JK |
2129 | if (getenv(GIT_QUARANTINE_ENVIRONMENT)) { |
2130 | strbuf_addstr(err, | |
2131 | _("ref updates forbidden inside quarantine environment")); | |
2132 | return -1; | |
2133 | } | |
2134 | ||
67541597 PS |
2135 | ret = refs->be->transaction_prepare(refs, transaction, err); |
2136 | if (ret) | |
2137 | return ret; | |
2138 | ||
2139 | ret = run_transaction_hook(transaction, "prepared"); | |
2140 | if (ret) { | |
2141 | ref_transaction_abort(transaction, err); | |
2142 | die(_("ref updates aborted by hook")); | |
2143 | } | |
2144 | ||
2145 | return 0; | |
30173b88 MH |
2146 | } |
2147 | ||
2148 | int ref_transaction_abort(struct ref_transaction *transaction, | |
2149 | struct strbuf *err) | |
2150 | { | |
2151 | struct ref_store *refs = transaction->ref_store; | |
2152 | int ret = 0; | |
2153 | ||
2154 | switch (transaction->state) { | |
2155 | case REF_TRANSACTION_OPEN: | |
2156 | /* No need to abort explicitly. */ | |
2157 | break; | |
2158 | case REF_TRANSACTION_PREPARED: | |
2159 | ret = refs->be->transaction_abort(refs, transaction, err); | |
2160 | break; | |
2161 | case REF_TRANSACTION_CLOSED: | |
033abf97 | 2162 | BUG("abort called on a closed reference transaction"); |
30173b88 MH |
2163 | break; |
2164 | default: | |
033abf97 | 2165 | BUG("unexpected reference transaction state"); |
30173b88 MH |
2166 | break; |
2167 | } | |
2168 | ||
67541597 PS |
2169 | run_transaction_hook(transaction, "aborted"); |
2170 | ||
30173b88 MH |
2171 | ref_transaction_free(transaction); |
2172 | return ret; | |
2173 | } | |
2174 | ||
2175 | int ref_transaction_commit(struct ref_transaction *transaction, | |
2176 | struct strbuf *err) | |
2177 | { | |
2178 | struct ref_store *refs = transaction->ref_store; | |
2179 | int ret; | |
2180 | ||
2181 | switch (transaction->state) { | |
2182 | case REF_TRANSACTION_OPEN: | |
2183 | /* Need to prepare first. */ | |
2184 | ret = ref_transaction_prepare(transaction, err); | |
2185 | if (ret) | |
2186 | return ret; | |
2187 | break; | |
2188 | case REF_TRANSACTION_PREPARED: | |
2189 | /* Fall through to finish. */ | |
2190 | break; | |
2191 | case REF_TRANSACTION_CLOSED: | |
033abf97 | 2192 | BUG("commit called on a closed reference transaction"); |
30173b88 MH |
2193 | break; |
2194 | default: | |
033abf97 | 2195 | BUG("unexpected reference transaction state"); |
30173b88 MH |
2196 | break; |
2197 | } | |
2198 | ||
67541597 PS |
2199 | ret = refs->be->transaction_finish(refs, transaction, err); |
2200 | if (!ret) | |
2201 | run_transaction_hook(transaction, "committed"); | |
2202 | return ret; | |
127b42a1 | 2203 | } |
62665823 | 2204 | |
7d2df051 NTND |
2205 | int refs_verify_refname_available(struct ref_store *refs, |
2206 | const char *refname, | |
b05855b5 | 2207 | const struct string_list *extras, |
7d2df051 NTND |
2208 | const struct string_list *skip, |
2209 | struct strbuf *err) | |
62665823 | 2210 | { |
b05855b5 MH |
2211 | const char *slash; |
2212 | const char *extra_refname; | |
2213 | struct strbuf dirname = STRBUF_INIT; | |
2214 | struct strbuf referent = STRBUF_INIT; | |
2215 | struct object_id oid; | |
2216 | unsigned int type; | |
2217 | struct ref_iterator *iter; | |
2218 | int ok; | |
2219 | int ret = -1; | |
2220 | ||
2221 | /* | |
2222 | * For the sake of comments in this function, suppose that | |
2223 | * refname is "refs/foo/bar". | |
2224 | */ | |
2225 | ||
2226 | assert(err); | |
2227 | ||
2228 | strbuf_grow(&dirname, strlen(refname) + 1); | |
2229 | for (slash = strchr(refname, '/'); slash; slash = strchr(slash + 1, '/')) { | |
8b72fea7 HWN |
2230 | /* |
2231 | * Just saying "Is a directory" when we e.g. can't | |
2232 | * lock some multi-level ref isn't very informative, | |
2233 | * the user won't be told *what* is a directory, so | |
2234 | * let's not use strerror() below. | |
2235 | */ | |
2236 | int ignore_errno; | |
b05855b5 MH |
2237 | /* Expand dirname to the new prefix, not including the trailing slash: */ |
2238 | strbuf_add(&dirname, refname + dirname.len, slash - refname - dirname.len); | |
2239 | ||
2240 | /* | |
2241 | * We are still at a leading dir of the refname (e.g., | |
2242 | * "refs/foo"; if there is a reference with that name, | |
2243 | * it is a conflict, *unless* it is in skip. | |
2244 | */ | |
2245 | if (skip && string_list_has_string(skip, dirname.buf)) | |
2246 | continue; | |
2247 | ||
8b72fea7 HWN |
2248 | if (!refs_read_raw_ref(refs, dirname.buf, &oid, &referent, |
2249 | &type, &ignore_errno)) { | |
661558f0 | 2250 | strbuf_addf(err, _("'%s' exists; cannot create '%s'"), |
b05855b5 MH |
2251 | dirname.buf, refname); |
2252 | goto cleanup; | |
2253 | } | |
2254 | ||
2255 | if (extras && string_list_has_string(extras, dirname.buf)) { | |
661558f0 | 2256 | strbuf_addf(err, _("cannot process '%s' and '%s' at the same time"), |
b05855b5 MH |
2257 | refname, dirname.buf); |
2258 | goto cleanup; | |
2259 | } | |
2260 | } | |
2261 | ||
2262 | /* | |
2263 | * We are at the leaf of our refname (e.g., "refs/foo/bar"). | |
2264 | * There is no point in searching for a reference with that | |
2265 | * name, because a refname isn't considered to conflict with | |
2266 | * itself. But we still need to check for references whose | |
2267 | * names are in the "refs/foo/bar/" namespace, because they | |
2268 | * *do* conflict. | |
2269 | */ | |
2270 | strbuf_addstr(&dirname, refname + dirname.len); | |
2271 | strbuf_addch(&dirname, '/'); | |
2272 | ||
2273 | iter = refs_ref_iterator_begin(refs, dirname.buf, 0, | |
2274 | DO_FOR_EACH_INCLUDE_BROKEN); | |
2275 | while ((ok = ref_iterator_advance(iter)) == ITER_OK) { | |
2276 | if (skip && | |
2277 | string_list_has_string(skip, iter->refname)) | |
2278 | continue; | |
2279 | ||
661558f0 | 2280 | strbuf_addf(err, _("'%s' exists; cannot create '%s'"), |
b05855b5 MH |
2281 | iter->refname, refname); |
2282 | ref_iterator_abort(iter); | |
2283 | goto cleanup; | |
2284 | } | |
2285 | ||
2286 | if (ok != ITER_DONE) | |
033abf97 | 2287 | BUG("error while iterating over references"); |
b05855b5 MH |
2288 | |
2289 | extra_refname = find_descendant_ref(dirname.buf, extras, skip); | |
2290 | if (extra_refname) | |
661558f0 | 2291 | strbuf_addf(err, _("cannot process '%s' and '%s' at the same time"), |
b05855b5 MH |
2292 | refname, extra_refname); |
2293 | else | |
2294 | ret = 0; | |
2295 | ||
2296 | cleanup: | |
2297 | strbuf_release(&referent); | |
2298 | strbuf_release(&dirname); | |
2299 | return ret; | |
62665823 | 2300 | } |
e3688bd6 | 2301 | |
7d2df051 | 2302 | int refs_for_each_reflog(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
e3688bd6 | 2303 | { |
e3688bd6 | 2304 | struct ref_iterator *iter; |
4a6067cd | 2305 | struct do_for_each_ref_help hp = { fn, cb_data }; |
e3688bd6 DT |
2306 | |
2307 | iter = refs->be->reflog_iterator_begin(refs); | |
2308 | ||
4a6067cd SB |
2309 | return do_for_each_repo_ref_iterator(the_repository, iter, |
2310 | do_for_each_ref_helper, &hp); | |
e3688bd6 DT |
2311 | } |
2312 | ||
7d2df051 | 2313 | int for_each_reflog(each_ref_fn fn, void *cb_data) |
e3688bd6 | 2314 | { |
23a3f0cb | 2315 | return refs_for_each_reflog(get_main_ref_store(the_repository), fn, cb_data); |
7d2df051 | 2316 | } |
e3688bd6 | 2317 | |
7d2df051 NTND |
2318 | int refs_for_each_reflog_ent_reverse(struct ref_store *refs, |
2319 | const char *refname, | |
2320 | each_reflog_ent_fn fn, | |
2321 | void *cb_data) | |
2322 | { | |
e3688bd6 DT |
2323 | return refs->be->for_each_reflog_ent_reverse(refs, refname, |
2324 | fn, cb_data); | |
2325 | } | |
2326 | ||
7d2df051 NTND |
2327 | int for_each_reflog_ent_reverse(const char *refname, each_reflog_ent_fn fn, |
2328 | void *cb_data) | |
2329 | { | |
23a3f0cb | 2330 | return refs_for_each_reflog_ent_reverse(get_main_ref_store(the_repository), |
7d2df051 NTND |
2331 | refname, fn, cb_data); |
2332 | } | |
2333 | ||
2334 | int refs_for_each_reflog_ent(struct ref_store *refs, const char *refname, | |
2335 | each_reflog_ent_fn fn, void *cb_data) | |
2336 | { | |
2337 | return refs->be->for_each_reflog_ent(refs, refname, fn, cb_data); | |
2338 | } | |
2339 | ||
e3688bd6 DT |
2340 | int for_each_reflog_ent(const char *refname, each_reflog_ent_fn fn, |
2341 | void *cb_data) | |
2342 | { | |
23a3f0cb | 2343 | return refs_for_each_reflog_ent(get_main_ref_store(the_repository), refname, |
7d2df051 NTND |
2344 | fn, cb_data); |
2345 | } | |
e3688bd6 | 2346 | |
7d2df051 NTND |
2347 | int refs_reflog_exists(struct ref_store *refs, const char *refname) |
2348 | { | |
2349 | return refs->be->reflog_exists(refs, refname); | |
e3688bd6 DT |
2350 | } |
2351 | ||
2352 | int reflog_exists(const char *refname) | |
2353 | { | |
23a3f0cb | 2354 | return refs_reflog_exists(get_main_ref_store(the_repository), refname); |
7d2df051 | 2355 | } |
e3688bd6 | 2356 | |
7d2df051 NTND |
2357 | int refs_create_reflog(struct ref_store *refs, const char *refname, |
2358 | int force_create, struct strbuf *err) | |
2359 | { | |
2360 | return refs->be->create_reflog(refs, refname, force_create, err); | |
e3688bd6 DT |
2361 | } |
2362 | ||
2363 | int safe_create_reflog(const char *refname, int force_create, | |
2364 | struct strbuf *err) | |
2365 | { | |
23a3f0cb | 2366 | return refs_create_reflog(get_main_ref_store(the_repository), refname, |
7d2df051 NTND |
2367 | force_create, err); |
2368 | } | |
e3688bd6 | 2369 | |
7d2df051 NTND |
2370 | int refs_delete_reflog(struct ref_store *refs, const char *refname) |
2371 | { | |
2372 | return refs->be->delete_reflog(refs, refname); | |
e3688bd6 DT |
2373 | } |
2374 | ||
2375 | int delete_reflog(const char *refname) | |
2376 | { | |
23a3f0cb | 2377 | return refs_delete_reflog(get_main_ref_store(the_repository), refname); |
7d2df051 | 2378 | } |
e3688bd6 | 2379 | |
7d2df051 | 2380 | int refs_reflog_expire(struct ref_store *refs, |
cc40b5ce | 2381 | const char *refname, |
7d2df051 NTND |
2382 | unsigned int flags, |
2383 | reflog_expiry_prepare_fn prepare_fn, | |
2384 | reflog_expiry_should_prune_fn should_prune_fn, | |
2385 | reflog_expiry_cleanup_fn cleanup_fn, | |
2386 | void *policy_cb_data) | |
2387 | { | |
cc40b5ce | 2388 | return refs->be->reflog_expire(refs, refname, flags, |
7d2df051 NTND |
2389 | prepare_fn, should_prune_fn, |
2390 | cleanup_fn, policy_cb_data); | |
e3688bd6 DT |
2391 | } |
2392 | ||
cc40b5ce | 2393 | int reflog_expire(const char *refname, |
e3688bd6 DT |
2394 | unsigned int flags, |
2395 | reflog_expiry_prepare_fn prepare_fn, | |
2396 | reflog_expiry_should_prune_fn should_prune_fn, | |
2397 | reflog_expiry_cleanup_fn cleanup_fn, | |
2398 | void *policy_cb_data) | |
2399 | { | |
23a3f0cb | 2400 | return refs_reflog_expire(get_main_ref_store(the_repository), |
cc40b5ce | 2401 | refname, flags, |
7d2df051 NTND |
2402 | prepare_fn, should_prune_fn, |
2403 | cleanup_fn, policy_cb_data); | |
e3688bd6 | 2404 | } |
fc681463 DT |
2405 | |
2406 | int initial_ref_transaction_commit(struct ref_transaction *transaction, | |
2407 | struct strbuf *err) | |
2408 | { | |
c0fe4e8b | 2409 | struct ref_store *refs = transaction->ref_store; |
fc681463 DT |
2410 | |
2411 | return refs->be->initial_transaction_commit(refs, transaction, err); | |
2412 | } | |
a27dcf89 | 2413 | |
523fa69c | 2414 | int refs_delete_refs(struct ref_store *refs, const char *logmsg, |
64da4199 | 2415 | struct string_list *refnames, unsigned int flags) |
a27dcf89 | 2416 | { |
523fa69c JH |
2417 | char *msg; |
2418 | int retval; | |
2419 | ||
2420 | msg = normalize_reflog_message(logmsg); | |
2421 | retval = refs->be->delete_refs(refs, msg, refnames, flags); | |
2422 | free(msg); | |
2423 | return retval; | |
a27dcf89 | 2424 | } |
9b6b40d9 | 2425 | |
64da4199 MH |
2426 | int delete_refs(const char *msg, struct string_list *refnames, |
2427 | unsigned int flags) | |
9b6b40d9 | 2428 | { |
23a3f0cb | 2429 | return refs_delete_refs(get_main_ref_store(the_repository), msg, refnames, flags); |
7d2df051 | 2430 | } |
9b6b40d9 | 2431 | |
7d2df051 NTND |
2432 | int refs_rename_ref(struct ref_store *refs, const char *oldref, |
2433 | const char *newref, const char *logmsg) | |
2434 | { | |
523fa69c JH |
2435 | char *msg; |
2436 | int retval; | |
2437 | ||
2438 | msg = normalize_reflog_message(logmsg); | |
2439 | retval = refs->be->rename_ref(refs, oldref, newref, msg); | |
2440 | free(msg); | |
2441 | return retval; | |
9b6b40d9 | 2442 | } |
7d2df051 NTND |
2443 | |
2444 | int rename_ref(const char *oldref, const char *newref, const char *logmsg) | |
2445 | { | |
23a3f0cb | 2446 | return refs_rename_ref(get_main_ref_store(the_repository), oldref, newref, logmsg); |
7d2df051 | 2447 | } |
52d59cc6 SD |
2448 | |
2449 | int refs_copy_existing_ref(struct ref_store *refs, const char *oldref, | |
2450 | const char *newref, const char *logmsg) | |
2451 | { | |
523fa69c JH |
2452 | char *msg; |
2453 | int retval; | |
2454 | ||
2455 | msg = normalize_reflog_message(logmsg); | |
2456 | retval = refs->be->copy_ref(refs, oldref, newref, msg); | |
2457 | free(msg); | |
2458 | return retval; | |
52d59cc6 SD |
2459 | } |
2460 | ||
2461 | int copy_existing_ref(const char *oldref, const char *newref, const char *logmsg) | |
2462 | { | |
23a3f0cb | 2463 | return refs_copy_existing_ref(get_main_ref_store(the_repository), oldref, newref, logmsg); |
52d59cc6 | 2464 | } |