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Commit | Line | Data |
---|---|---|
7bd9bcf3 MH |
1 | /* |
2 | * The backend-independent part of the reference module. | |
3 | */ | |
4 | ||
95fc7512 | 5 | #include "cache.h" |
b2141fc1 | 6 | #include "config.h" |
7d4558c4 | 7 | #include "hashmap.h" |
697cc8ef | 8 | #include "lockfile.h" |
b05855b5 | 9 | #include "iterator.h" |
85023577 | 10 | #include "refs.h" |
4cb77009 | 11 | #include "refs/refs-internal.h" |
cbd53a21 | 12 | #include "object-store.h" |
cf0adba7 JH |
13 | #include "object.h" |
14 | #include "tag.h" | |
5d0bc90e | 15 | #include "submodule.h" |
17eff96b | 16 | #include "worktree.h" |
b4be7410 | 17 | #include "argv-array.h" |
23a3f0cb | 18 | #include "repository.h" |
3581d793 | 19 | |
3dce444f RS |
20 | /* |
21 | * List of all available backends | |
22 | */ | |
23 | static struct ref_storage_be *refs_backends = &refs_be_files; | |
24 | ||
25 | static struct ref_storage_be *find_ref_storage_backend(const char *name) | |
26 | { | |
27 | struct ref_storage_be *be; | |
28 | for (be = refs_backends; be; be = be->next) | |
29 | if (!strcmp(be->name, name)) | |
30 | return be; | |
31 | return NULL; | |
32 | } | |
33 | ||
34 | int ref_storage_backend_exists(const char *name) | |
35 | { | |
36 | return find_ref_storage_backend(name) != NULL; | |
37 | } | |
38 | ||
bc5fd6d3 | 39 | /* |
dde8a902 DT |
40 | * How to handle various characters in refnames: |
41 | * 0: An acceptable character for refs | |
5e650228 JH |
42 | * 1: End-of-component |
43 | * 2: ., look for a preceding . to reject .. in refs | |
44 | * 3: {, look for a preceding @ to reject @{ in refs | |
53a8555e | 45 | * 4: A bad character: ASCII control characters, and |
cd377f45 JK |
46 | * ":", "?", "[", "\", "^", "~", SP, or TAB |
47 | * 5: *, reject unless REFNAME_REFSPEC_PATTERN is set | |
dde8a902 DT |
48 | */ |
49 | static unsigned char refname_disposition[256] = { | |
5e650228 JH |
50 | 1, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, |
51 | 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, | |
cd377f45 | 52 | 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5, 0, 0, 0, 2, 1, |
5e650228 | 53 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0, 0, 0, 4, |
dde8a902 | 54 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
5e650228 JH |
55 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 4, 0, 4, 0, |
56 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
57 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 4, 4 | |
dde8a902 DT |
58 | }; |
59 | ||
60 | /* | |
61 | * Try to read one refname component from the front of refname. | |
62 | * Return the length of the component found, or -1 if the component is | |
63 | * not legal. It is legal if it is something reasonable to have under | |
64 | * ".git/refs/"; We do not like it if: | |
bc5fd6d3 | 65 | * |
1de16aec | 66 | * - it begins with ".", or |
bc5fd6d3 | 67 | * - it has double dots "..", or |
53a8555e | 68 | * - it has ASCII control characters, or |
cd377f45 JK |
69 | * - it has ":", "?", "[", "\", "^", "~", SP, or TAB anywhere, or |
70 | * - it has "*" anywhere unless REFNAME_REFSPEC_PATTERN is set, or | |
53a8555e JK |
71 | * - it ends with a "/", or |
72 | * - it ends with ".lock", or | |
73 | * - it contains a "@{" portion | |
1de16aec NTND |
74 | * |
75 | * When sanitized is not NULL, instead of rejecting the input refname | |
76 | * as an error, try to come up with a usable replacement for the input | |
77 | * refname in it. | |
bc5fd6d3 | 78 | */ |
1de16aec NTND |
79 | static int check_refname_component(const char *refname, int *flags, |
80 | struct strbuf *sanitized) | |
bc5fd6d3 MH |
81 | { |
82 | const char *cp; | |
83 | char last = '\0'; | |
1de16aec NTND |
84 | size_t component_start = 0; /* garbage - not a reasonable initial value */ |
85 | ||
86 | if (sanitized) | |
87 | component_start = sanitized->len; | |
bc5fd6d3 MH |
88 | |
89 | for (cp = refname; ; cp++) { | |
dde8a902 DT |
90 | int ch = *cp & 255; |
91 | unsigned char disp = refname_disposition[ch]; | |
1de16aec NTND |
92 | |
93 | if (sanitized && disp != 1) | |
94 | strbuf_addch(sanitized, ch); | |
95 | ||
dde8a902 | 96 | switch (disp) { |
5e650228 | 97 | case 1: |
dde8a902 | 98 | goto out; |
5e650228 | 99 | case 2: |
1de16aec NTND |
100 | if (last == '.') { /* Refname contains "..". */ |
101 | if (sanitized) | |
102 | /* collapse ".." to single "." */ | |
103 | strbuf_setlen(sanitized, sanitized->len - 1); | |
104 | else | |
105 | return -1; | |
106 | } | |
dde8a902 | 107 | break; |
5e650228 | 108 | case 3: |
1de16aec NTND |
109 | if (last == '@') { /* Refname contains "@{". */ |
110 | if (sanitized) | |
111 | sanitized->buf[sanitized->len-1] = '-'; | |
112 | else | |
113 | return -1; | |
114 | } | |
bc5fd6d3 | 115 | break; |
5e650228 | 116 | case 4: |
1de16aec NTND |
117 | /* forbidden char */ |
118 | if (sanitized) | |
119 | sanitized->buf[sanitized->len-1] = '-'; | |
120 | else | |
121 | return -1; | |
122 | break; | |
cd377f45 | 123 | case 5: |
1de16aec NTND |
124 | if (!(*flags & REFNAME_REFSPEC_PATTERN)) { |
125 | /* refspec can't be a pattern */ | |
126 | if (sanitized) | |
127 | sanitized->buf[sanitized->len-1] = '-'; | |
128 | else | |
129 | return -1; | |
130 | } | |
cd377f45 JK |
131 | |
132 | /* | |
133 | * Unset the pattern flag so that we only accept | |
134 | * a single asterisk for one side of refspec. | |
135 | */ | |
136 | *flags &= ~ REFNAME_REFSPEC_PATTERN; | |
137 | break; | |
dde8a902 | 138 | } |
bc5fd6d3 MH |
139 | last = ch; |
140 | } | |
dde8a902 | 141 | out: |
bc5fd6d3 | 142 | if (cp == refname) |
dac529e4 | 143 | return 0; /* Component has zero length. */ |
1de16aec NTND |
144 | |
145 | if (refname[0] == '.') { /* Component starts with '.'. */ | |
146 | if (sanitized) | |
147 | sanitized->buf[component_start] = '-'; | |
148 | else | |
149 | return -1; | |
150 | } | |
7108ad23 | 151 | if (cp - refname >= LOCK_SUFFIX_LEN && |
1de16aec NTND |
152 | !memcmp(cp - LOCK_SUFFIX_LEN, LOCK_SUFFIX, LOCK_SUFFIX_LEN)) { |
153 | if (!sanitized) | |
154 | return -1; | |
155 | /* Refname ends with ".lock". */ | |
156 | while (strbuf_strip_suffix(sanitized, LOCK_SUFFIX)) { | |
157 | /* try again in case we have .lock.lock */ | |
158 | } | |
159 | } | |
bc5fd6d3 MH |
160 | return cp - refname; |
161 | } | |
162 | ||
1de16aec NTND |
163 | static int check_or_sanitize_refname(const char *refname, int flags, |
164 | struct strbuf *sanitized) | |
bc5fd6d3 MH |
165 | { |
166 | int component_len, component_count = 0; | |
167 | ||
1de16aec | 168 | if (!strcmp(refname, "@")) { |
9ba89f48 | 169 | /* Refname is a single character '@'. */ |
1de16aec NTND |
170 | if (sanitized) |
171 | strbuf_addch(sanitized, '-'); | |
172 | else | |
173 | return -1; | |
174 | } | |
9ba89f48 | 175 | |
bc5fd6d3 | 176 | while (1) { |
1de16aec NTND |
177 | if (sanitized && sanitized->len) |
178 | strbuf_complete(sanitized, '/'); | |
179 | ||
bc5fd6d3 | 180 | /* We are at the start of a path component. */ |
1de16aec NTND |
181 | component_len = check_refname_component(refname, &flags, |
182 | sanitized); | |
183 | if (sanitized && component_len == 0) | |
184 | ; /* OK, omit empty component */ | |
185 | else if (component_len <= 0) | |
cd377f45 JK |
186 | return -1; |
187 | ||
bc5fd6d3 MH |
188 | component_count++; |
189 | if (refname[component_len] == '\0') | |
190 | break; | |
191 | /* Skip to next component. */ | |
192 | refname += component_len + 1; | |
193 | } | |
194 | ||
1de16aec NTND |
195 | if (refname[component_len - 1] == '.') { |
196 | /* Refname ends with '.'. */ | |
197 | if (sanitized) | |
198 | ; /* omit ending dot */ | |
199 | else | |
200 | return -1; | |
201 | } | |
bc5fd6d3 MH |
202 | if (!(flags & REFNAME_ALLOW_ONELEVEL) && component_count < 2) |
203 | return -1; /* Refname has only one component. */ | |
204 | return 0; | |
205 | } | |
206 | ||
1de16aec NTND |
207 | int check_refname_format(const char *refname, int flags) |
208 | { | |
209 | return check_or_sanitize_refname(refname, flags, NULL); | |
210 | } | |
211 | ||
212 | void sanitize_refname_component(const char *refname, struct strbuf *out) | |
213 | { | |
214 | if (check_or_sanitize_refname(refname, REFNAME_ALLOW_ONELEVEL, out)) | |
215 | BUG("sanitizing refname '%s' check returned error", refname); | |
216 | } | |
217 | ||
4cb77009 | 218 | int refname_is_safe(const char *refname) |
d0f810f0 | 219 | { |
39950fef MH |
220 | const char *rest; |
221 | ||
222 | if (skip_prefix(refname, "refs/", &rest)) { | |
d0f810f0 RS |
223 | char *buf; |
224 | int result; | |
e40f3557 MH |
225 | size_t restlen = strlen(rest); |
226 | ||
227 | /* rest must not be empty, or start or end with "/" */ | |
228 | if (!restlen || *rest == '/' || rest[restlen - 1] == '/') | |
229 | return 0; | |
d0f810f0 | 230 | |
d0f810f0 RS |
231 | /* |
232 | * Does the refname try to escape refs/? | |
233 | * For example: refs/foo/../bar is safe but refs/foo/../../bar | |
234 | * is not. | |
235 | */ | |
e40f3557 MH |
236 | buf = xmallocz(restlen); |
237 | result = !normalize_path_copy(buf, rest) && !strcmp(buf, rest); | |
d0f810f0 RS |
238 | free(buf); |
239 | return result; | |
240 | } | |
35db25c6 MH |
241 | |
242 | do { | |
d0f810f0 RS |
243 | if (!isupper(*refname) && *refname != '_') |
244 | return 0; | |
245 | refname++; | |
35db25c6 | 246 | } while (*refname); |
d0f810f0 RS |
247 | return 1; |
248 | } | |
249 | ||
67be7c5a MH |
250 | /* |
251 | * Return true if refname, which has the specified oid and flags, can | |
252 | * be resolved to an object in the database. If the referred-to object | |
253 | * does not exist, emit a warning and return false. | |
254 | */ | |
255 | int ref_resolves_to_object(const char *refname, | |
256 | const struct object_id *oid, | |
257 | unsigned int flags) | |
258 | { | |
259 | if (flags & REF_ISBROKEN) | |
260 | return 0; | |
98374a07 | 261 | if (!has_object_file(oid)) { |
661558f0 | 262 | error(_("%s does not point to a valid object!"), refname); |
67be7c5a MH |
263 | return 0; |
264 | } | |
265 | return 1; | |
266 | } | |
267 | ||
7d2df051 NTND |
268 | char *refs_resolve_refdup(struct ref_store *refs, |
269 | const char *refname, int resolve_flags, | |
0f2dc722 | 270 | struct object_id *oid, int *flags) |
7d2df051 NTND |
271 | { |
272 | const char *result; | |
273 | ||
274 | result = refs_resolve_ref_unsafe(refs, refname, resolve_flags, | |
49e61479 | 275 | oid, flags); |
7d2df051 NTND |
276 | return xstrdup_or_null(result); |
277 | } | |
278 | ||
7bd9bcf3 | 279 | char *resolve_refdup(const char *refname, int resolve_flags, |
0f2dc722 | 280 | struct object_id *oid, int *flags) |
e1e22e37 | 281 | { |
23a3f0cb | 282 | return refs_resolve_refdup(get_main_ref_store(the_repository), |
7d2df051 | 283 | refname, resolve_flags, |
0f2dc722 | 284 | oid, flags); |
cddc4258 MH |
285 | } |
286 | ||
7bd9bcf3 MH |
287 | /* The argument to filter_refs */ |
288 | struct ref_filter { | |
289 | const char *pattern; | |
9ab9b5df | 290 | const char *prefix; |
7bd9bcf3 MH |
291 | each_ref_fn *fn; |
292 | void *cb_data; | |
293 | }; | |
432ad41e | 294 | |
7d2df051 | 295 | int refs_read_ref_full(struct ref_store *refs, const char *refname, |
34c290a6 | 296 | int resolve_flags, struct object_id *oid, int *flags) |
732134ed | 297 | { |
49e61479 | 298 | if (refs_resolve_ref_unsafe(refs, refname, resolve_flags, oid, flags)) |
7bd9bcf3 MH |
299 | return 0; |
300 | return -1; | |
732134ed MH |
301 | } |
302 | ||
34c290a6 | 303 | int read_ref_full(const char *refname, int resolve_flags, struct object_id *oid, int *flags) |
7d2df051 | 304 | { |
23a3f0cb | 305 | return refs_read_ref_full(get_main_ref_store(the_repository), refname, |
34c290a6 | 306 | resolve_flags, oid, flags); |
7d2df051 NTND |
307 | } |
308 | ||
34c290a6 | 309 | int read_ref(const char *refname, struct object_id *oid) |
cddc4258 | 310 | { |
34c290a6 | 311 | return read_ref_full(refname, RESOLVE_REF_READING, oid, NULL); |
c774aab9 JP |
312 | } |
313 | ||
b3cd33d0 NTND |
314 | static int refs_ref_exists(struct ref_store *refs, const char *refname) |
315 | { | |
316 | return !!refs_resolve_ref_unsafe(refs, refname, RESOLVE_REF_READING, NULL, NULL); | |
317 | } | |
318 | ||
7bd9bcf3 | 319 | int ref_exists(const char *refname) |
bc5fd6d3 | 320 | { |
b3cd33d0 | 321 | return refs_ref_exists(get_main_ref_store(the_repository), refname); |
bc5fd6d3 MH |
322 | } |
323 | ||
7bd9bcf3 MH |
324 | static int filter_refs(const char *refname, const struct object_id *oid, |
325 | int flags, void *data) | |
432ad41e | 326 | { |
7bd9bcf3 MH |
327 | struct ref_filter *filter = (struct ref_filter *)data; |
328 | ||
55d34269 | 329 | if (wildmatch(filter->pattern, refname, 0)) |
7bd9bcf3 | 330 | return 0; |
9ab9b5df RA |
331 | if (filter->prefix) |
332 | skip_prefix(refname, filter->prefix, &refname); | |
7bd9bcf3 | 333 | return filter->fn(refname, oid, flags, filter->cb_data); |
432ad41e MH |
334 | } |
335 | ||
ac2ed0d7 | 336 | enum peel_status peel_object(const struct object_id *name, struct object_id *oid) |
c774aab9 | 337 | { |
0ebbcf70 | 338 | struct object *o = lookup_unknown_object(name); |
c774aab9 | 339 | |
7bd9bcf3 | 340 | if (o->type == OBJ_NONE) { |
0df8e965 | 341 | int type = oid_object_info(the_repository, name, NULL); |
1268dfac | 342 | if (type < 0 || !object_as_type(the_repository, o, type, 0)) |
7bd9bcf3 MH |
343 | return PEEL_INVALID; |
344 | } | |
bc5fd6d3 | 345 | |
7bd9bcf3 MH |
346 | if (o->type != OBJ_TAG) |
347 | return PEEL_NON_TAG; | |
e1980c9d | 348 | |
7bd9bcf3 MH |
349 | o = deref_tag_noverify(o); |
350 | if (!o) | |
351 | return PEEL_INVALID; | |
352 | ||
ac2ed0d7 | 353 | oidcpy(oid, &o->oid); |
7bd9bcf3 | 354 | return PEEL_PEELED; |
e1980c9d JH |
355 | } |
356 | ||
7bd9bcf3 MH |
357 | struct warn_if_dangling_data { |
358 | FILE *fp; | |
359 | const char *refname; | |
360 | const struct string_list *refnames; | |
361 | const char *msg_fmt; | |
362 | }; | |
bc5fd6d3 | 363 | |
7bd9bcf3 MH |
364 | static int warn_if_dangling_symref(const char *refname, const struct object_id *oid, |
365 | int flags, void *cb_data) | |
366 | { | |
367 | struct warn_if_dangling_data *d = cb_data; | |
368 | const char *resolves_to; | |
bc5fd6d3 | 369 | |
7bd9bcf3 MH |
370 | if (!(flags & REF_ISSYMREF)) |
371 | return 0; | |
bc5fd6d3 | 372 | |
744c040b | 373 | resolves_to = resolve_ref_unsafe(refname, 0, NULL, NULL); |
7bd9bcf3 MH |
374 | if (!resolves_to |
375 | || (d->refname | |
376 | ? strcmp(resolves_to, d->refname) | |
377 | : !string_list_has_string(d->refnames, resolves_to))) { | |
378 | return 0; | |
379 | } | |
bc5fd6d3 | 380 | |
7bd9bcf3 MH |
381 | fprintf(d->fp, d->msg_fmt, refname); |
382 | fputc('\n', d->fp); | |
383 | return 0; | |
bc5fd6d3 MH |
384 | } |
385 | ||
7bd9bcf3 | 386 | void warn_dangling_symref(FILE *fp, const char *msg_fmt, const char *refname) |
f348ac92 | 387 | { |
7bd9bcf3 MH |
388 | struct warn_if_dangling_data data; |
389 | ||
390 | data.fp = fp; | |
391 | data.refname = refname; | |
392 | data.refnames = NULL; | |
393 | data.msg_fmt = msg_fmt; | |
394 | for_each_rawref(warn_if_dangling_symref, &data); | |
f348ac92 MH |
395 | } |
396 | ||
7bd9bcf3 | 397 | void warn_dangling_symrefs(FILE *fp, const char *msg_fmt, const struct string_list *refnames) |
432ad41e | 398 | { |
7bd9bcf3 | 399 | struct warn_if_dangling_data data; |
432ad41e | 400 | |
7bd9bcf3 MH |
401 | data.fp = fp; |
402 | data.refname = NULL; | |
403 | data.refnames = refnames; | |
404 | data.msg_fmt = msg_fmt; | |
405 | for_each_rawref(warn_if_dangling_symref, &data); | |
432ad41e MH |
406 | } |
407 | ||
7d2df051 NTND |
408 | int refs_for_each_tag_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
409 | { | |
410 | return refs_for_each_ref_in(refs, "refs/tags/", fn, cb_data); | |
411 | } | |
412 | ||
7bd9bcf3 | 413 | int for_each_tag_ref(each_ref_fn fn, void *cb_data) |
432ad41e | 414 | { |
23a3f0cb | 415 | return refs_for_each_tag_ref(get_main_ref_store(the_repository), fn, cb_data); |
432ad41e MH |
416 | } |
417 | ||
7d2df051 NTND |
418 | int refs_for_each_branch_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
419 | { | |
420 | return refs_for_each_ref_in(refs, "refs/heads/", fn, cb_data); | |
432ad41e MH |
421 | } |
422 | ||
7bd9bcf3 | 423 | int for_each_branch_ref(each_ref_fn fn, void *cb_data) |
432ad41e | 424 | { |
23a3f0cb | 425 | return refs_for_each_branch_ref(get_main_ref_store(the_repository), fn, cb_data); |
432ad41e MH |
426 | } |
427 | ||
7d2df051 NTND |
428 | int refs_for_each_remote_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
429 | { | |
430 | return refs_for_each_ref_in(refs, "refs/remotes/", fn, cb_data); | |
202a56a9 | 431 | } |
432ad41e | 432 | |
7bd9bcf3 | 433 | int for_each_remote_ref(each_ref_fn fn, void *cb_data) |
e9c4c111 | 434 | { |
23a3f0cb | 435 | return refs_for_each_remote_ref(get_main_ref_store(the_repository), fn, cb_data); |
202a56a9 MH |
436 | } |
437 | ||
7bd9bcf3 MH |
438 | int head_ref_namespaced(each_ref_fn fn, void *cb_data) |
439 | { | |
440 | struct strbuf buf = STRBUF_INIT; | |
441 | int ret = 0; | |
442 | struct object_id oid; | |
443 | int flag; | |
c774aab9 | 444 | |
7bd9bcf3 | 445 | strbuf_addf(&buf, "%sHEAD", get_git_namespace()); |
34c290a6 | 446 | if (!read_ref_full(buf.buf, RESOLVE_REF_READING, &oid, &flag)) |
7bd9bcf3 MH |
447 | ret = fn(buf.buf, &oid, flag, cb_data); |
448 | strbuf_release(&buf); | |
c774aab9 | 449 | |
7bd9bcf3 | 450 | return ret; |
e9c4c111 | 451 | } |
c774aab9 | 452 | |
65516f58 RA |
453 | void normalize_glob_ref(struct string_list_item *item, const char *prefix, |
454 | const char *pattern) | |
455 | { | |
456 | struct strbuf normalized_pattern = STRBUF_INIT; | |
457 | ||
458 | if (*pattern == '/') | |
459 | BUG("pattern must not start with '/'"); | |
460 | ||
461 | if (prefix) { | |
462 | strbuf_addstr(&normalized_pattern, prefix); | |
463 | } | |
464 | else if (!starts_with(pattern, "refs/")) | |
465 | strbuf_addstr(&normalized_pattern, "refs/"); | |
466 | strbuf_addstr(&normalized_pattern, pattern); | |
467 | strbuf_strip_suffix(&normalized_pattern, "/"); | |
468 | ||
469 | item->string = strbuf_detach(&normalized_pattern, NULL); | |
470 | item->util = has_glob_specials(pattern) ? NULL : item->string; | |
471 | strbuf_release(&normalized_pattern); | |
472 | } | |
473 | ||
7bd9bcf3 MH |
474 | int for_each_glob_ref_in(each_ref_fn fn, const char *pattern, |
475 | const char *prefix, void *cb_data) | |
662428f4 | 476 | { |
7bd9bcf3 MH |
477 | struct strbuf real_pattern = STRBUF_INIT; |
478 | struct ref_filter filter; | |
479 | int ret; | |
d08bae7e | 480 | |
59556548 | 481 | if (!prefix && !starts_with(pattern, "refs/")) |
d08bae7e | 482 | strbuf_addstr(&real_pattern, "refs/"); |
b09fe971 IL |
483 | else if (prefix) |
484 | strbuf_addstr(&real_pattern, prefix); | |
d08bae7e IL |
485 | strbuf_addstr(&real_pattern, pattern); |
486 | ||
894a9d33 | 487 | if (!has_glob_specials(pattern)) { |
9517e6b8 | 488 | /* Append implied '/' '*' if not present. */ |
00b6c178 | 489 | strbuf_complete(&real_pattern, '/'); |
d08bae7e IL |
490 | /* No need to check for '*', there is none. */ |
491 | strbuf_addch(&real_pattern, '*'); | |
492 | } | |
493 | ||
494 | filter.pattern = real_pattern.buf; | |
9ab9b5df | 495 | filter.prefix = prefix; |
d08bae7e IL |
496 | filter.fn = fn; |
497 | filter.cb_data = cb_data; | |
498 | ret = for_each_ref(filter_refs, &filter); | |
499 | ||
500 | strbuf_release(&real_pattern); | |
501 | return ret; | |
502 | } | |
503 | ||
b09fe971 IL |
504 | int for_each_glob_ref(each_ref_fn fn, const char *pattern, void *cb_data) |
505 | { | |
506 | return for_each_glob_ref_in(fn, pattern, NULL, cb_data); | |
507 | } | |
508 | ||
4577e483 | 509 | const char *prettify_refname(const char *name) |
a9c37a72 | 510 | { |
3e5b36c6 SG |
511 | if (skip_prefix(name, "refs/heads/", &name) || |
512 | skip_prefix(name, "refs/tags/", &name) || | |
513 | skip_prefix(name, "refs/remotes/", &name)) | |
514 | ; /* nothing */ | |
515 | return name; | |
a9c37a72 DB |
516 | } |
517 | ||
54457fe5 | 518 | static const char *ref_rev_parse_rules[] = { |
79803322 SP |
519 | "%.*s", |
520 | "refs/%.*s", | |
521 | "refs/tags/%.*s", | |
522 | "refs/heads/%.*s", | |
523 | "refs/remotes/%.*s", | |
524 | "refs/remotes/%.*s/HEAD", | |
525 | NULL | |
526 | }; | |
527 | ||
60650a48 JH |
528 | #define NUM_REV_PARSE_RULES (ARRAY_SIZE(ref_rev_parse_rules) - 1) |
529 | ||
530 | /* | |
531 | * Is it possible that the caller meant full_name with abbrev_name? | |
532 | * If so return a non-zero value to signal "yes"; the magnitude of | |
533 | * the returned value gives the precedence used for disambiguation. | |
534 | * | |
535 | * If abbrev_name cannot mean full_name, return 0. | |
536 | */ | |
54457fe5 | 537 | int refname_match(const char *abbrev_name, const char *full_name) |
79803322 SP |
538 | { |
539 | const char **p; | |
540 | const int abbrev_name_len = strlen(abbrev_name); | |
60650a48 | 541 | const int num_rules = NUM_REV_PARSE_RULES; |
79803322 | 542 | |
60650a48 JH |
543 | for (p = ref_rev_parse_rules; *p; p++) |
544 | if (!strcmp(full_name, mkpath(*p, abbrev_name_len, abbrev_name))) | |
545 | return &ref_rev_parse_rules[num_rules] - p; | |
79803322 SP |
546 | |
547 | return 0; | |
548 | } | |
549 | ||
b4be7410 BW |
550 | /* |
551 | * Given a 'prefix' expand it by the rules in 'ref_rev_parse_rules' and add | |
552 | * the results to 'prefixes' | |
553 | */ | |
554 | void expand_ref_prefix(struct argv_array *prefixes, const char *prefix) | |
555 | { | |
556 | const char **p; | |
557 | int len = strlen(prefix); | |
558 | ||
559 | for (p = ref_rev_parse_rules; *p; p++) | |
560 | argv_array_pushf(prefixes, *p, len, prefix); | |
561 | } | |
562 | ||
ff74f7f1 JH |
563 | /* |
564 | * *string and *len will only be substituted, and *string returned (for | |
565 | * later free()ing) if the string passed in is a magic short-hand form | |
566 | * to name a branch. | |
567 | */ | |
8f56e9d4 NTND |
568 | static char *substitute_branch_name(struct repository *r, |
569 | const char **string, int *len) | |
ff74f7f1 JH |
570 | { |
571 | struct strbuf buf = STRBUF_INIT; | |
8f56e9d4 | 572 | int ret = repo_interpret_branch_name(r, *string, *len, &buf, 0); |
ff74f7f1 JH |
573 | |
574 | if (ret == *len) { | |
575 | size_t size; | |
576 | *string = strbuf_detach(&buf, &size); | |
577 | *len = size; | |
578 | return (char *)*string; | |
579 | } | |
580 | ||
581 | return NULL; | |
582 | } | |
583 | ||
d8984c53 NTND |
584 | int repo_dwim_ref(struct repository *r, const char *str, int len, |
585 | struct object_id *oid, char **ref) | |
ff74f7f1 | 586 | { |
d8984c53 NTND |
587 | char *last_branch = substitute_branch_name(r, &str, &len); |
588 | int refs_found = expand_ref(r, str, len, oid, ref); | |
41da7111 NTND |
589 | free(last_branch); |
590 | return refs_found; | |
591 | } | |
592 | ||
d8984c53 NTND |
593 | int dwim_ref(const char *str, int len, struct object_id *oid, char **ref) |
594 | { | |
595 | return repo_dwim_ref(the_repository, str, len, oid, ref); | |
596 | } | |
597 | ||
0b1dbf53 NTND |
598 | int expand_ref(struct repository *repo, const char *str, int len, |
599 | struct object_id *oid, char **ref) | |
41da7111 | 600 | { |
ff74f7f1 JH |
601 | const char **p, *r; |
602 | int refs_found = 0; | |
6cd4a898 | 603 | struct strbuf fullref = STRBUF_INIT; |
ff74f7f1 JH |
604 | |
605 | *ref = NULL; | |
606 | for (p = ref_rev_parse_rules; *p; p++) { | |
cca5fa64 | 607 | struct object_id oid_from_ref; |
608 | struct object_id *this_result; | |
ff74f7f1 JH |
609 | int flag; |
610 | ||
cca5fa64 | 611 | this_result = refs_found ? &oid_from_ref : oid; |
6cd4a898 JK |
612 | strbuf_reset(&fullref); |
613 | strbuf_addf(&fullref, *p, len, str); | |
0b1dbf53 NTND |
614 | r = refs_resolve_ref_unsafe(get_main_ref_store(repo), |
615 | fullref.buf, RESOLVE_REF_READING, | |
616 | this_result, &flag); | |
ff74f7f1 JH |
617 | if (r) { |
618 | if (!refs_found++) | |
619 | *ref = xstrdup(r); | |
620 | if (!warn_ambiguous_refs) | |
621 | break; | |
6cd4a898 | 622 | } else if ((flag & REF_ISSYMREF) && strcmp(fullref.buf, "HEAD")) { |
661558f0 | 623 | warning(_("ignoring dangling symref %s"), fullref.buf); |
6cd4a898 | 624 | } else if ((flag & REF_ISBROKEN) && strchr(fullref.buf, '/')) { |
661558f0 | 625 | warning(_("ignoring broken ref %s"), fullref.buf); |
55956350 | 626 | } |
ff74f7f1 | 627 | } |
6cd4a898 | 628 | strbuf_release(&fullref); |
ff74f7f1 JH |
629 | return refs_found; |
630 | } | |
631 | ||
56700903 NTND |
632 | int repo_dwim_log(struct repository *r, const char *str, int len, |
633 | struct object_id *oid, char **log) | |
ff74f7f1 | 634 | { |
56700903 NTND |
635 | struct ref_store *refs = get_main_ref_store(r); |
636 | char *last_branch = substitute_branch_name(r, &str, &len); | |
ff74f7f1 JH |
637 | const char **p; |
638 | int logs_found = 0; | |
6cd4a898 | 639 | struct strbuf path = STRBUF_INIT; |
ff74f7f1 JH |
640 | |
641 | *log = NULL; | |
642 | for (p = ref_rev_parse_rules; *p; p++) { | |
334dc52f | 643 | struct object_id hash; |
ff74f7f1 JH |
644 | const char *ref, *it; |
645 | ||
6cd4a898 JK |
646 | strbuf_reset(&path); |
647 | strbuf_addf(&path, *p, len, str); | |
56700903 NTND |
648 | ref = refs_resolve_ref_unsafe(refs, path.buf, |
649 | RESOLVE_REF_READING, | |
650 | &hash, NULL); | |
ff74f7f1 JH |
651 | if (!ref) |
652 | continue; | |
56700903 | 653 | if (refs_reflog_exists(refs, path.buf)) |
6cd4a898 | 654 | it = path.buf; |
56700903 NTND |
655 | else if (strcmp(ref, path.buf) && |
656 | refs_reflog_exists(refs, ref)) | |
ff74f7f1 JH |
657 | it = ref; |
658 | else | |
659 | continue; | |
660 | if (!logs_found++) { | |
661 | *log = xstrdup(it); | |
334dc52f | 662 | oidcpy(oid, &hash); |
ff74f7f1 | 663 | } |
7bd9bcf3 MH |
664 | if (!warn_ambiguous_refs) |
665 | break; | |
c0277d15 | 666 | } |
6cd4a898 | 667 | strbuf_release(&path); |
7bd9bcf3 MH |
668 | free(last_branch); |
669 | return logs_found; | |
2ddb5d17 BK |
670 | } |
671 | ||
56700903 NTND |
672 | int dwim_log(const char *str, int len, struct object_id *oid, char **log) |
673 | { | |
674 | return repo_dwim_log(the_repository, str, len, oid, log); | |
675 | } | |
676 | ||
266b1827 DT |
677 | static int is_per_worktree_ref(const char *refname) |
678 | { | |
ce414b33 | 679 | return !strcmp(refname, "HEAD") || |
8aff1a9c | 680 | starts_with(refname, "refs/worktree/") || |
a9be29c9 JS |
681 | starts_with(refname, "refs/bisect/") || |
682 | starts_with(refname, "refs/rewritten/"); | |
266b1827 DT |
683 | } |
684 | ||
685 | static int is_pseudoref_syntax(const char *refname) | |
686 | { | |
687 | const char *c; | |
688 | ||
689 | for (c = refname; *c; c++) { | |
690 | if (!isupper(*c) && *c != '-' && *c != '_') | |
691 | return 0; | |
692 | } | |
693 | ||
694 | return 1; | |
695 | } | |
696 | ||
3a3b9d8c NTND |
697 | static int is_main_pseudoref_syntax(const char *refname) |
698 | { | |
699 | return skip_prefix(refname, "main-worktree/", &refname) && | |
700 | *refname && | |
701 | is_pseudoref_syntax(refname); | |
702 | } | |
703 | ||
704 | static int is_other_pseudoref_syntax(const char *refname) | |
705 | { | |
706 | if (!skip_prefix(refname, "worktrees/", &refname)) | |
707 | return 0; | |
708 | refname = strchr(refname, '/'); | |
709 | if (!refname || !refname[1]) | |
710 | return 0; | |
711 | return is_pseudoref_syntax(refname + 1); | |
712 | } | |
713 | ||
266b1827 DT |
714 | enum ref_type ref_type(const char *refname) |
715 | { | |
716 | if (is_per_worktree_ref(refname)) | |
717 | return REF_TYPE_PER_WORKTREE; | |
718 | if (is_pseudoref_syntax(refname)) | |
719 | return REF_TYPE_PSEUDOREF; | |
3a3b9d8c NTND |
720 | if (is_main_pseudoref_syntax(refname)) |
721 | return REF_TYPE_MAIN_PSEUDOREF; | |
722 | if (is_other_pseudoref_syntax(refname)) | |
723 | return REF_TYPE_OTHER_PSEUDOREF; | |
5c79f74f | 724 | return REF_TYPE_NORMAL; |
266b1827 DT |
725 | } |
726 | ||
4ff0f01c MH |
727 | long get_files_ref_lock_timeout_ms(void) |
728 | { | |
729 | static int configured = 0; | |
730 | ||
731 | /* The default timeout is 100 ms: */ | |
732 | static int timeout_ms = 100; | |
733 | ||
734 | if (!configured) { | |
735 | git_config_get_int("core.filesreflocktimeout", &timeout_ms); | |
736 | configured = 1; | |
737 | } | |
738 | ||
739 | return timeout_ms; | |
740 | } | |
741 | ||
ae077771 | 742 | static int write_pseudoref(const char *pseudoref, const struct object_id *oid, |
743 | const struct object_id *old_oid, struct strbuf *err) | |
74ec19d4 DT |
744 | { |
745 | const char *filename; | |
746 | int fd; | |
01084515 | 747 | struct lock_file lock = LOCK_INIT; |
74ec19d4 DT |
748 | struct strbuf buf = STRBUF_INIT; |
749 | int ret = -1; | |
750 | ||
6ee18216 | 751 | if (!oid) |
752 | return 0; | |
753 | ||
ae077771 | 754 | strbuf_addf(&buf, "%s\n", oid_to_hex(oid)); |
74ec19d4 DT |
755 | |
756 | filename = git_path("%s", pseudoref); | |
01084515 | 757 | fd = hold_lock_file_for_update_timeout(&lock, filename, 0, |
4ff0f01c | 758 | get_files_ref_lock_timeout_ms()); |
74ec19d4 | 759 | if (fd < 0) { |
661558f0 | 760 | strbuf_addf(err, _("could not open '%s' for writing: %s"), |
74ec19d4 | 761 | filename, strerror(errno)); |
aeb014f6 | 762 | goto done; |
74ec19d4 DT |
763 | } |
764 | ||
ae077771 | 765 | if (old_oid) { |
766 | struct object_id actual_old_oid; | |
2c3aed13 | 767 | |
db0210d4 MÅ |
768 | if (read_ref(pseudoref, &actual_old_oid)) { |
769 | if (!is_null_oid(old_oid)) { | |
661558f0 | 770 | strbuf_addf(err, _("could not read ref '%s'"), |
db0210d4 MÅ |
771 | pseudoref); |
772 | rollback_lock_file(&lock); | |
773 | goto done; | |
774 | } | |
775 | } else if (is_null_oid(old_oid)) { | |
661558f0 | 776 | strbuf_addf(err, _("ref '%s' already exists"), |
db0210d4 MÅ |
777 | pseudoref); |
778 | rollback_lock_file(&lock); | |
779 | goto done; | |
9001dc2a | 780 | } else if (!oideq(&actual_old_oid, old_oid)) { |
661558f0 | 781 | strbuf_addf(err, _("unexpected object ID when writing '%s'"), |
c0bdd658 | 782 | pseudoref); |
74ec19d4 DT |
783 | rollback_lock_file(&lock); |
784 | goto done; | |
785 | } | |
786 | } | |
787 | ||
06f46f23 | 788 | if (write_in_full(fd, buf.buf, buf.len) < 0) { |
661558f0 | 789 | strbuf_addf(err, _("could not write to '%s'"), filename); |
74ec19d4 DT |
790 | rollback_lock_file(&lock); |
791 | goto done; | |
792 | } | |
793 | ||
794 | commit_lock_file(&lock); | |
795 | ret = 0; | |
796 | done: | |
797 | strbuf_release(&buf); | |
798 | return ret; | |
799 | } | |
800 | ||
2616a5e5 | 801 | static int delete_pseudoref(const char *pseudoref, const struct object_id *old_oid) |
74ec19d4 | 802 | { |
74ec19d4 DT |
803 | const char *filename; |
804 | ||
805 | filename = git_path("%s", pseudoref); | |
806 | ||
2616a5e5 | 807 | if (old_oid && !is_null_oid(old_oid)) { |
3c6fad4a | 808 | struct lock_file lock = LOCK_INIT; |
74ec19d4 | 809 | int fd; |
2616a5e5 | 810 | struct object_id actual_old_oid; |
74ec19d4 | 811 | |
4ff0f01c | 812 | fd = hold_lock_file_for_update_timeout( |
3c6fad4a | 813 | &lock, filename, 0, |
4ff0f01c | 814 | get_files_ref_lock_timeout_ms()); |
3c6fad4a MÅ |
815 | if (fd < 0) { |
816 | error_errno(_("could not open '%s' for writing"), | |
817 | filename); | |
818 | return -1; | |
819 | } | |
34c290a6 | 820 | if (read_ref(pseudoref, &actual_old_oid)) |
661558f0 | 821 | die(_("could not read ref '%s'"), pseudoref); |
9001dc2a | 822 | if (!oideq(&actual_old_oid, old_oid)) { |
661558f0 | 823 | error(_("unexpected object ID when deleting '%s'"), |
c0bdd658 | 824 | pseudoref); |
74ec19d4 DT |
825 | rollback_lock_file(&lock); |
826 | return -1; | |
a4c653df | 827 | } |
74ec19d4 DT |
828 | |
829 | unlink(filename); | |
830 | rollback_lock_file(&lock); | |
831 | } else { | |
832 | unlink(filename); | |
4bd18c43 | 833 | } |
a4c653df | 834 | |
4bd18c43 | 835 | return 0; |
95fc7512 | 836 | } |
d556fae2 | 837 | |
c0fe4e8b NTND |
838 | int refs_delete_ref(struct ref_store *refs, const char *msg, |
839 | const char *refname, | |
2616a5e5 | 840 | const struct object_id *old_oid, |
c0fe4e8b | 841 | unsigned int flags) |
41b625b0 | 842 | { |
7521cc46 | 843 | struct ref_transaction *transaction; |
a4c653df | 844 | struct strbuf err = STRBUF_INIT; |
8b5157e4 | 845 | |
c0fe4e8b | 846 | if (ref_type(refname) == REF_TYPE_PSEUDOREF) { |
23a3f0cb | 847 | assert(refs == get_main_ref_store(the_repository)); |
2616a5e5 | 848 | return delete_pseudoref(refname, old_oid); |
c0fe4e8b | 849 | } |
d48744d1 | 850 | |
c0fe4e8b | 851 | transaction = ref_store_transaction_begin(refs, &err); |
7521cc46 | 852 | if (!transaction || |
89f3bbdd | 853 | ref_transaction_delete(transaction, refname, old_oid, |
755b49ae | 854 | flags, msg, &err) || |
db7516ab | 855 | ref_transaction_commit(transaction, &err)) { |
7521cc46 RS |
856 | error("%s", err.buf); |
857 | ref_transaction_free(transaction); | |
858 | strbuf_release(&err); | |
c0277d15 | 859 | return 1; |
41b625b0 | 860 | } |
7bd9bcf3 MH |
861 | ref_transaction_free(transaction); |
862 | strbuf_release(&err); | |
b531394d BC |
863 | return 0; |
864 | } | |
41b625b0 | 865 | |
c0fe4e8b | 866 | int delete_ref(const char *msg, const char *refname, |
2616a5e5 | 867 | const struct object_id *old_oid, unsigned int flags) |
c0fe4e8b | 868 | { |
23a3f0cb | 869 | return refs_delete_ref(get_main_ref_store(the_repository), msg, refname, |
2616a5e5 | 870 | old_oid, flags); |
c0fe4e8b NTND |
871 | } |
872 | ||
80a6c207 | 873 | void copy_reflog_msg(struct strbuf *sb, const char *msg) |
0ec29a47 | 874 | { |
0ec29a47 JH |
875 | char c; |
876 | int wasspace = 1; | |
8b5157e4 | 877 | |
80a6c207 | 878 | strbuf_addch(sb, '\t'); |
0ec29a47 JH |
879 | while ((c = *msg++)) { |
880 | if (wasspace && isspace(c)) | |
881 | continue; | |
882 | wasspace = isspace(c); | |
883 | if (wasspace) | |
884 | c = ' '; | |
80a6c207 | 885 | strbuf_addch(sb, c); |
a4c653df | 886 | } |
80a6c207 | 887 | strbuf_rtrim(sb); |
0ec29a47 | 888 | } |
8b5157e4 | 889 | |
4cb77009 | 890 | int should_autocreate_reflog(const char *refname) |
4e2bef57 | 891 | { |
341fb286 CW |
892 | switch (log_all_ref_updates) { |
893 | case LOG_REFS_ALWAYS: | |
894 | return 1; | |
895 | case LOG_REFS_NORMAL: | |
896 | return starts_with(refname, "refs/heads/") || | |
897 | starts_with(refname, "refs/remotes/") || | |
898 | starts_with(refname, "refs/notes/") || | |
899 | !strcmp(refname, "HEAD"); | |
900 | default: | |
4e2bef57 | 901 | return 0; |
341fb286 | 902 | } |
4e2bef57 DT |
903 | } |
904 | ||
e7e0f26e | 905 | int is_branch(const char *refname) |
c3b0dec5 | 906 | { |
59556548 | 907 | return !strcmp(refname, "HEAD") || starts_with(refname, "refs/heads/"); |
41b625b0 NP |
908 | } |
909 | ||
4207ed28 RS |
910 | struct read_ref_at_cb { |
911 | const char *refname; | |
dddbad72 | 912 | timestamp_t at_time; |
4207ed28 RS |
913 | int cnt; |
914 | int reccnt; | |
8eb36d94 | 915 | struct object_id *oid; |
4207ed28 RS |
916 | int found_it; |
917 | ||
8eb36d94 | 918 | struct object_id ooid; |
919 | struct object_id noid; | |
4207ed28 | 920 | int tz; |
dddbad72 | 921 | timestamp_t date; |
4207ed28 | 922 | char **msg; |
dddbad72 | 923 | timestamp_t *cutoff_time; |
4207ed28 RS |
924 | int *cutoff_tz; |
925 | int *cutoff_cnt; | |
926 | }; | |
927 | ||
9461d272 | 928 | static int read_ref_at_ent(struct object_id *ooid, struct object_id *noid, |
dddbad72 | 929 | const char *email, timestamp_t timestamp, int tz, |
4207ed28 RS |
930 | const char *message, void *cb_data) |
931 | { | |
932 | struct read_ref_at_cb *cb = cb_data; | |
933 | ||
934 | cb->reccnt++; | |
935 | cb->tz = tz; | |
936 | cb->date = timestamp; | |
937 | ||
938 | if (timestamp <= cb->at_time || cb->cnt == 0) { | |
939 | if (cb->msg) | |
940 | *cb->msg = xstrdup(message); | |
941 | if (cb->cutoff_time) | |
942 | *cb->cutoff_time = timestamp; | |
943 | if (cb->cutoff_tz) | |
944 | *cb->cutoff_tz = tz; | |
945 | if (cb->cutoff_cnt) | |
946 | *cb->cutoff_cnt = cb->reccnt - 1; | |
947 | /* | |
78fb4579 | 948 | * we have not yet updated cb->[n|o]oid so they still |
4207ed28 RS |
949 | * hold the values for the previous record. |
950 | */ | |
8eb36d94 | 951 | if (!is_null_oid(&cb->ooid)) { |
952 | oidcpy(cb->oid, noid); | |
9001dc2a | 953 | if (!oideq(&cb->ooid, noid)) |
661558f0 | 954 | warning(_("log for ref %s has gap after %s"), |
a5481a6c | 955 | cb->refname, show_date(cb->date, cb->tz, DATE_MODE(RFC2822))); |
4207ed28 RS |
956 | } |
957 | else if (cb->date == cb->at_time) | |
8eb36d94 | 958 | oidcpy(cb->oid, noid); |
9001dc2a | 959 | else if (!oideq(noid, cb->oid)) |
661558f0 | 960 | warning(_("log for ref %s unexpectedly ended on %s"), |
4207ed28 | 961 | cb->refname, show_date(cb->date, cb->tz, |
a5481a6c | 962 | DATE_MODE(RFC2822))); |
8eb36d94 | 963 | oidcpy(&cb->ooid, ooid); |
964 | oidcpy(&cb->noid, noid); | |
4207ed28 RS |
965 | cb->found_it = 1; |
966 | return 1; | |
967 | } | |
8eb36d94 | 968 | oidcpy(&cb->ooid, ooid); |
969 | oidcpy(&cb->noid, noid); | |
4207ed28 RS |
970 | if (cb->cnt > 0) |
971 | cb->cnt--; | |
972 | return 0; | |
973 | } | |
974 | ||
9461d272 | 975 | static int read_ref_at_ent_oldest(struct object_id *ooid, struct object_id *noid, |
dddbad72 | 976 | const char *email, timestamp_t timestamp, |
4207ed28 RS |
977 | int tz, const char *message, void *cb_data) |
978 | { | |
979 | struct read_ref_at_cb *cb = cb_data; | |
980 | ||
981 | if (cb->msg) | |
982 | *cb->msg = xstrdup(message); | |
983 | if (cb->cutoff_time) | |
984 | *cb->cutoff_time = timestamp; | |
985 | if (cb->cutoff_tz) | |
986 | *cb->cutoff_tz = tz; | |
987 | if (cb->cutoff_cnt) | |
988 | *cb->cutoff_cnt = cb->reccnt; | |
8eb36d94 | 989 | oidcpy(cb->oid, ooid); |
990 | if (is_null_oid(cb->oid)) | |
991 | oidcpy(cb->oid, noid); | |
4207ed28 RS |
992 | /* We just want the first entry */ |
993 | return 1; | |
16d7cc90 JH |
994 | } |
995 | ||
7fdff474 NTND |
996 | int read_ref_at(struct ref_store *refs, const char *refname, |
997 | unsigned int flags, timestamp_t at_time, int cnt, | |
8eb36d94 | 998 | struct object_id *oid, char **msg, |
dddbad72 | 999 | timestamp_t *cutoff_time, int *cutoff_tz, int *cutoff_cnt) |
d556fae2 | 1000 | { |
4207ed28 | 1001 | struct read_ref_at_cb cb; |
d556fae2 | 1002 | |
4207ed28 RS |
1003 | memset(&cb, 0, sizeof(cb)); |
1004 | cb.refname = refname; | |
1005 | cb.at_time = at_time; | |
1006 | cb.cnt = cnt; | |
1007 | cb.msg = msg; | |
1008 | cb.cutoff_time = cutoff_time; | |
1009 | cb.cutoff_tz = cutoff_tz; | |
1010 | cb.cutoff_cnt = cutoff_cnt; | |
8eb36d94 | 1011 | cb.oid = oid; |
4207ed28 | 1012 | |
7fdff474 | 1013 | refs_for_each_reflog_ent_reverse(refs, refname, read_ref_at_ent, &cb); |
4207ed28 | 1014 | |
c41a87dd | 1015 | if (!cb.reccnt) { |
321c89bf | 1016 | if (flags & GET_OID_QUIETLY) |
c41a87dd DA |
1017 | exit(128); |
1018 | else | |
661558f0 | 1019 | die(_("log for %s is empty"), refname); |
c41a87dd | 1020 | } |
4207ed28 RS |
1021 | if (cb.found_it) |
1022 | return 0; | |
1023 | ||
7fdff474 | 1024 | refs_for_each_reflog_ent(refs, refname, read_ref_at_ent_oldest, &cb); |
d556fae2 | 1025 | |
16d7cc90 | 1026 | return 1; |
d556fae2 | 1027 | } |
2ff81662 | 1028 | |
c0fe4e8b NTND |
1029 | struct ref_transaction *ref_store_transaction_begin(struct ref_store *refs, |
1030 | struct strbuf *err) | |
caa4046c | 1031 | { |
c0fe4e8b | 1032 | struct ref_transaction *tr; |
5a603b04 JN |
1033 | assert(err); |
1034 | ||
c0fe4e8b NTND |
1035 | tr = xcalloc(1, sizeof(struct ref_transaction)); |
1036 | tr->ref_store = refs; | |
1037 | return tr; | |
1038 | } | |
1039 | ||
1040 | struct ref_transaction *ref_transaction_begin(struct strbuf *err) | |
1041 | { | |
23a3f0cb | 1042 | return ref_store_transaction_begin(get_main_ref_store(the_repository), err); |
caa4046c MH |
1043 | } |
1044 | ||
026bd1d3 | 1045 | void ref_transaction_free(struct ref_transaction *transaction) |
caa4046c | 1046 | { |
43a2dfde | 1047 | size_t i; |
caa4046c | 1048 | |
1b07255c RS |
1049 | if (!transaction) |
1050 | return; | |
1051 | ||
30173b88 MH |
1052 | switch (transaction->state) { |
1053 | case REF_TRANSACTION_OPEN: | |
1054 | case REF_TRANSACTION_CLOSED: | |
1055 | /* OK */ | |
1056 | break; | |
1057 | case REF_TRANSACTION_PREPARED: | |
033abf97 | 1058 | BUG("free called on a prepared reference transaction"); |
30173b88 MH |
1059 | break; |
1060 | default: | |
033abf97 | 1061 | BUG("unexpected reference transaction state"); |
30173b88 MH |
1062 | break; |
1063 | } | |
1064 | ||
db7516ab RS |
1065 | for (i = 0; i < transaction->nr; i++) { |
1066 | free(transaction->updates[i]->msg); | |
88615910 | 1067 | free(transaction->updates[i]); |
db7516ab | 1068 | } |
caa4046c MH |
1069 | free(transaction->updates); |
1070 | free(transaction); | |
1071 | } | |
1072 | ||
71564516 MH |
1073 | struct ref_update *ref_transaction_add_update( |
1074 | struct ref_transaction *transaction, | |
1075 | const char *refname, unsigned int flags, | |
89f3bbdd | 1076 | const struct object_id *new_oid, |
1077 | const struct object_id *old_oid, | |
71564516 | 1078 | const char *msg) |
caa4046c | 1079 | { |
96ffc06f | 1080 | struct ref_update *update; |
71564516 MH |
1081 | |
1082 | if (transaction->state != REF_TRANSACTION_OPEN) | |
033abf97 | 1083 | BUG("update called for transaction that is not open"); |
71564516 | 1084 | |
96ffc06f | 1085 | FLEX_ALLOC_STR(update, refname, refname); |
caa4046c MH |
1086 | ALLOC_GROW(transaction->updates, transaction->nr + 1, transaction->alloc); |
1087 | transaction->updates[transaction->nr++] = update; | |
71564516 MH |
1088 | |
1089 | update->flags = flags; | |
1090 | ||
1091 | if (flags & REF_HAVE_NEW) | |
89f3bbdd | 1092 | oidcpy(&update->new_oid, new_oid); |
71564516 | 1093 | if (flags & REF_HAVE_OLD) |
89f3bbdd | 1094 | oidcpy(&update->old_oid, old_oid); |
13092a91 | 1095 | update->msg = xstrdup_or_null(msg); |
caa4046c MH |
1096 | return update; |
1097 | } | |
1098 | ||
8e34800e RS |
1099 | int ref_transaction_update(struct ref_transaction *transaction, |
1100 | const char *refname, | |
89f3bbdd | 1101 | const struct object_id *new_oid, |
1102 | const struct object_id *old_oid, | |
1d147bdf | 1103 | unsigned int flags, const char *msg, |
8e34800e | 1104 | struct strbuf *err) |
caa4046c | 1105 | { |
5a603b04 JN |
1106 | assert(err); |
1107 | ||
89f3bbdd | 1108 | if ((new_oid && !is_null_oid(new_oid)) ? |
8a679de6 MH |
1109 | check_refname_format(refname, REFNAME_ALLOW_ONELEVEL) : |
1110 | !refname_is_safe(refname)) { | |
661558f0 | 1111 | strbuf_addf(err, _("refusing to update ref with bad name '%s'"), |
d0f810f0 RS |
1112 | refname); |
1113 | return -1; | |
1114 | } | |
1115 | ||
a9bbbcec MH |
1116 | if (flags & ~REF_TRANSACTION_UPDATE_ALLOWED_FLAGS) |
1117 | BUG("illegal flags 0x%x passed to ref_transaction_update()", flags); | |
c788c54c | 1118 | |
89f3bbdd | 1119 | flags |= (new_oid ? REF_HAVE_NEW : 0) | (old_oid ? REF_HAVE_OLD : 0); |
71564516 MH |
1120 | |
1121 | ref_transaction_add_update(transaction, refname, flags, | |
89f3bbdd | 1122 | new_oid, old_oid, msg); |
8e34800e | 1123 | return 0; |
caa4046c MH |
1124 | } |
1125 | ||
b416af5b RS |
1126 | int ref_transaction_create(struct ref_transaction *transaction, |
1127 | const char *refname, | |
89f3bbdd | 1128 | const struct object_id *new_oid, |
fec14ec3 | 1129 | unsigned int flags, const char *msg, |
b416af5b | 1130 | struct strbuf *err) |
caa4046c | 1131 | { |
89f3bbdd | 1132 | if (!new_oid || is_null_oid(new_oid)) |
033abf97 | 1133 | BUG("create called without valid new_oid"); |
89f3bbdd | 1134 | return ref_transaction_update(transaction, refname, new_oid, |
1135 | &null_oid, flags, msg, err); | |
caa4046c MH |
1136 | } |
1137 | ||
8c8bdc0d RS |
1138 | int ref_transaction_delete(struct ref_transaction *transaction, |
1139 | const char *refname, | |
89f3bbdd | 1140 | const struct object_id *old_oid, |
fb5a6bb6 | 1141 | unsigned int flags, const char *msg, |
8c8bdc0d | 1142 | struct strbuf *err) |
caa4046c | 1143 | { |
89f3bbdd | 1144 | if (old_oid && is_null_oid(old_oid)) |
033abf97 | 1145 | BUG("delete called with old_oid set to zeros"); |
1d147bdf | 1146 | return ref_transaction_update(transaction, refname, |
89f3bbdd | 1147 | &null_oid, old_oid, |
1d147bdf | 1148 | flags, msg, err); |
caa4046c MH |
1149 | } |
1150 | ||
16180334 MH |
1151 | int ref_transaction_verify(struct ref_transaction *transaction, |
1152 | const char *refname, | |
89f3bbdd | 1153 | const struct object_id *old_oid, |
16180334 MH |
1154 | unsigned int flags, |
1155 | struct strbuf *err) | |
1156 | { | |
89f3bbdd | 1157 | if (!old_oid) |
033abf97 | 1158 | BUG("verify called with old_oid set to NULL"); |
16180334 | 1159 | return ref_transaction_update(transaction, refname, |
89f3bbdd | 1160 | NULL, old_oid, |
16180334 MH |
1161 | flags, NULL, err); |
1162 | } | |
1163 | ||
c0fe4e8b | 1164 | int refs_update_ref(struct ref_store *refs, const char *msg, |
ae077771 | 1165 | const char *refname, const struct object_id *new_oid, |
1166 | const struct object_id *old_oid, unsigned int flags, | |
c0fe4e8b | 1167 | enum action_on_err onerr) |
4738a333 | 1168 | { |
74ec19d4 | 1169 | struct ref_transaction *t = NULL; |
b4d75ac1 | 1170 | struct strbuf err = STRBUF_INIT; |
74ec19d4 | 1171 | int ret = 0; |
b4d75ac1 | 1172 | |
74ec19d4 | 1173 | if (ref_type(refname) == REF_TYPE_PSEUDOREF) { |
23a3f0cb | 1174 | assert(refs == get_main_ref_store(the_repository)); |
ae077771 | 1175 | ret = write_pseudoref(refname, new_oid, old_oid, &err); |
74ec19d4 | 1176 | } else { |
c0fe4e8b | 1177 | t = ref_store_transaction_begin(refs, &err); |
74ec19d4 | 1178 | if (!t || |
89f3bbdd | 1179 | ref_transaction_update(t, refname, new_oid, old_oid, |
74ec19d4 DT |
1180 | flags, msg, &err) || |
1181 | ref_transaction_commit(t, &err)) { | |
1182 | ret = 1; | |
1183 | ref_transaction_free(t); | |
1184 | } | |
1185 | } | |
1186 | if (ret) { | |
661558f0 | 1187 | const char *str = _("update_ref failed for ref '%s': %s"); |
b4d75ac1 | 1188 | |
b4d75ac1 RS |
1189 | switch (onerr) { |
1190 | case UPDATE_REFS_MSG_ON_ERR: | |
1191 | error(str, refname, err.buf); | |
1192 | break; | |
1193 | case UPDATE_REFS_DIE_ON_ERR: | |
1194 | die(str, refname, err.buf); | |
1195 | break; | |
1196 | case UPDATE_REFS_QUIET_ON_ERR: | |
1197 | break; | |
1198 | } | |
1199 | strbuf_release(&err); | |
4738a333 | 1200 | return 1; |
b4d75ac1 RS |
1201 | } |
1202 | strbuf_release(&err); | |
74ec19d4 DT |
1203 | if (t) |
1204 | ref_transaction_free(t); | |
b4d75ac1 | 1205 | return 0; |
4738a333 BK |
1206 | } |
1207 | ||
c0fe4e8b | 1208 | int update_ref(const char *msg, const char *refname, |
ae077771 | 1209 | const struct object_id *new_oid, |
1210 | const struct object_id *old_oid, | |
c0fe4e8b NTND |
1211 | unsigned int flags, enum action_on_err onerr) |
1212 | { | |
23a3f0cb | 1213 | return refs_update_ref(get_main_ref_store(the_repository), msg, refname, new_oid, |
ae077771 | 1214 | old_oid, flags, onerr); |
c0fe4e8b NTND |
1215 | } |
1216 | ||
546edf37 NTND |
1217 | char *refs_shorten_unambiguous_ref(struct ref_store *refs, |
1218 | const char *refname, int strict) | |
7c2b3029 JK |
1219 | { |
1220 | int i; | |
1221 | static char **scanf_fmts; | |
1222 | static int nr_rules; | |
1223 | char *short_name; | |
6cd4a898 | 1224 | struct strbuf resolved_buf = STRBUF_INIT; |
7c2b3029 | 1225 | |
7c2b3029 | 1226 | if (!nr_rules) { |
4346663a MH |
1227 | /* |
1228 | * Pre-generate scanf formats from ref_rev_parse_rules[]. | |
1229 | * Generate a format suitable for scanf from a | |
1230 | * ref_rev_parse_rules rule by interpolating "%s" at the | |
1231 | * location of the "%.*s". | |
1232 | */ | |
7c2b3029 | 1233 | size_t total_len = 0; |
84d5633f | 1234 | size_t offset = 0; |
7c2b3029 JK |
1235 | |
1236 | /* the rule list is NULL terminated, count them first */ | |
a4165851 | 1237 | for (nr_rules = 0; ref_rev_parse_rules[nr_rules]; nr_rules++) |
7902fe03 MH |
1238 | /* -2 for strlen("%.*s") - strlen("%s"); +1 for NUL */ |
1239 | total_len += strlen(ref_rev_parse_rules[nr_rules]) - 2 + 1; | |
7c2b3029 | 1240 | |
50492f7b | 1241 | scanf_fmts = xmalloc(st_add(st_mult(sizeof(char *), nr_rules), total_len)); |
7c2b3029 | 1242 | |
84d5633f | 1243 | offset = 0; |
7c2b3029 | 1244 | for (i = 0; i < nr_rules; i++) { |
4346663a | 1245 | assert(offset < total_len); |
84d5633f | 1246 | scanf_fmts[i] = (char *)&scanf_fmts[nr_rules] + offset; |
bf4baf1f JK |
1247 | offset += xsnprintf(scanf_fmts[i], total_len - offset, |
1248 | ref_rev_parse_rules[i], 2, "%s") + 1; | |
7c2b3029 JK |
1249 | } |
1250 | } | |
1251 | ||
1252 | /* bail out if there are no rules */ | |
1253 | if (!nr_rules) | |
dfefa935 | 1254 | return xstrdup(refname); |
7c2b3029 | 1255 | |
dfefa935 MH |
1256 | /* buffer for scanf result, at most refname must fit */ |
1257 | short_name = xstrdup(refname); | |
7c2b3029 JK |
1258 | |
1259 | /* skip first rule, it will always match */ | |
1260 | for (i = nr_rules - 1; i > 0 ; --i) { | |
1261 | int j; | |
6e7b3309 | 1262 | int rules_to_fail = i; |
7c2b3029 JK |
1263 | int short_name_len; |
1264 | ||
dfefa935 | 1265 | if (1 != sscanf(refname, scanf_fmts[i], short_name)) |
7c2b3029 JK |
1266 | continue; |
1267 | ||
1268 | short_name_len = strlen(short_name); | |
1269 | ||
6e7b3309 BW |
1270 | /* |
1271 | * in strict mode, all (except the matched one) rules | |
1272 | * must fail to resolve to a valid non-ambiguous ref | |
1273 | */ | |
1274 | if (strict) | |
1275 | rules_to_fail = nr_rules; | |
1276 | ||
7c2b3029 JK |
1277 | /* |
1278 | * check if the short name resolves to a valid ref, | |
1279 | * but use only rules prior to the matched one | |
1280 | */ | |
6e7b3309 | 1281 | for (j = 0; j < rules_to_fail; j++) { |
7c2b3029 | 1282 | const char *rule = ref_rev_parse_rules[j]; |
7c2b3029 | 1283 | |
6e7b3309 BW |
1284 | /* skip matched rule */ |
1285 | if (i == j) | |
1286 | continue; | |
1287 | ||
7c2b3029 JK |
1288 | /* |
1289 | * the short name is ambiguous, if it resolves | |
1290 | * (with this previous rule) to a valid ref | |
1291 | * read_ref() returns 0 on success | |
1292 | */ | |
6cd4a898 JK |
1293 | strbuf_reset(&resolved_buf); |
1294 | strbuf_addf(&resolved_buf, rule, | |
1295 | short_name_len, short_name); | |
546edf37 | 1296 | if (refs_ref_exists(refs, resolved_buf.buf)) |
7c2b3029 JK |
1297 | break; |
1298 | } | |
1299 | ||
1300 | /* | |
1301 | * short name is non-ambiguous if all previous rules | |
1302 | * haven't resolved to a valid ref | |
1303 | */ | |
6cd4a898 JK |
1304 | if (j == rules_to_fail) { |
1305 | strbuf_release(&resolved_buf); | |
7c2b3029 | 1306 | return short_name; |
6cd4a898 | 1307 | } |
7c2b3029 JK |
1308 | } |
1309 | ||
6cd4a898 | 1310 | strbuf_release(&resolved_buf); |
7c2b3029 | 1311 | free(short_name); |
dfefa935 | 1312 | return xstrdup(refname); |
7c2b3029 | 1313 | } |
daebaa78 | 1314 | |
546edf37 NTND |
1315 | char *shorten_unambiguous_ref(const char *refname, int strict) |
1316 | { | |
1317 | return refs_shorten_unambiguous_ref(get_main_ref_store(the_repository), | |
1318 | refname, strict); | |
1319 | } | |
1320 | ||
daebaa78 JH |
1321 | static struct string_list *hide_refs; |
1322 | ||
1323 | int parse_hide_refs_config(const char *var, const char *value, const char *section) | |
1324 | { | |
ad8c7cda | 1325 | const char *key; |
daebaa78 | 1326 | if (!strcmp("transfer.hiderefs", var) || |
ad8c7cda JK |
1327 | (!parse_config_key(var, section, NULL, NULL, &key) && |
1328 | !strcmp(key, "hiderefs"))) { | |
daebaa78 JH |
1329 | char *ref; |
1330 | int len; | |
1331 | ||
1332 | if (!value) | |
1333 | return config_error_nonbool(var); | |
1334 | ref = xstrdup(value); | |
1335 | len = strlen(ref); | |
1336 | while (len && ref[len - 1] == '/') | |
1337 | ref[--len] = '\0'; | |
1338 | if (!hide_refs) { | |
1339 | hide_refs = xcalloc(1, sizeof(*hide_refs)); | |
1340 | hide_refs->strdup_strings = 1; | |
1341 | } | |
1342 | string_list_append(hide_refs, ref); | |
1343 | } | |
1344 | return 0; | |
1345 | } | |
1346 | ||
78a766ab | 1347 | int ref_is_hidden(const char *refname, const char *refname_full) |
daebaa78 | 1348 | { |
2bc31d16 | 1349 | int i; |
daebaa78 JH |
1350 | |
1351 | if (!hide_refs) | |
1352 | return 0; | |
2bc31d16 JK |
1353 | for (i = hide_refs->nr - 1; i >= 0; i--) { |
1354 | const char *match = hide_refs->items[i].string; | |
78a766ab | 1355 | const char *subject; |
2bc31d16 | 1356 | int neg = 0; |
7a40a95e | 1357 | const char *p; |
2bc31d16 JK |
1358 | |
1359 | if (*match == '!') { | |
1360 | neg = 1; | |
1361 | match++; | |
1362 | } | |
1363 | ||
78a766ab LF |
1364 | if (*match == '^') { |
1365 | subject = refname_full; | |
1366 | match++; | |
1367 | } else { | |
1368 | subject = refname; | |
1369 | } | |
1370 | ||
1371 | /* refname can be NULL when namespaces are used. */ | |
7a40a95e CC |
1372 | if (subject && |
1373 | skip_prefix(subject, match, &p) && | |
1374 | (!*p || *p == '/')) | |
2bc31d16 | 1375 | return !neg; |
daebaa78 JH |
1376 | } |
1377 | return 0; | |
1378 | } | |
fa5b1830 | 1379 | |
0845122c DT |
1380 | const char *find_descendant_ref(const char *dirname, |
1381 | const struct string_list *extras, | |
1382 | const struct string_list *skip) | |
fa5b1830 | 1383 | { |
0845122c | 1384 | int pos; |
fa5b1830 | 1385 | |
0845122c DT |
1386 | if (!extras) |
1387 | return NULL; | |
fa5b1830 MH |
1388 | |
1389 | /* | |
0845122c DT |
1390 | * Look at the place where dirname would be inserted into |
1391 | * extras. If there is an entry at that position that starts | |
1392 | * with dirname (remember, dirname includes the trailing | |
1393 | * slash) and is not in skip, then we have a conflict. | |
fa5b1830 | 1394 | */ |
0845122c DT |
1395 | for (pos = string_list_find_insert_index(extras, dirname, 0); |
1396 | pos < extras->nr; pos++) { | |
1397 | const char *extra_refname = extras->items[pos].string; | |
fa5b1830 | 1398 | |
0845122c DT |
1399 | if (!starts_with(extra_refname, dirname)) |
1400 | break; | |
1401 | ||
1402 | if (!skip || !string_list_has_string(skip, extra_refname)) | |
1403 | return extra_refname; | |
fa5b1830 | 1404 | } |
0845122c DT |
1405 | return NULL; |
1406 | } | |
fa5b1830 | 1407 | |
7d2df051 NTND |
1408 | int refs_rename_ref_available(struct ref_store *refs, |
1409 | const char *old_refname, | |
1410 | const char *new_refname) | |
0845122c DT |
1411 | { |
1412 | struct string_list skip = STRING_LIST_INIT_NODUP; | |
1413 | struct strbuf err = STRBUF_INIT; | |
ff3a299c | 1414 | int ok; |
fa5b1830 | 1415 | |
ff3a299c | 1416 | string_list_insert(&skip, old_refname); |
7d2df051 NTND |
1417 | ok = !refs_verify_refname_available(refs, new_refname, |
1418 | NULL, &skip, &err); | |
ff3a299c | 1419 | if (!ok) |
0845122c DT |
1420 | error("%s", err.buf); |
1421 | ||
1422 | string_list_clear(&skip, 0); | |
1423 | strbuf_release(&err); | |
ff3a299c | 1424 | return ok; |
fa5b1830 | 1425 | } |
2bf68ed5 | 1426 | |
62f0b399 | 1427 | int refs_head_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
2bf68ed5 DT |
1428 | { |
1429 | struct object_id oid; | |
1430 | int flag; | |
1431 | ||
62f0b399 | 1432 | if (!refs_read_ref_full(refs, "HEAD", RESOLVE_REF_READING, |
34c290a6 | 1433 | &oid, &flag)) |
2bf68ed5 DT |
1434 | return fn("HEAD", &oid, flag, cb_data); |
1435 | ||
1436 | return 0; | |
1437 | } | |
1438 | ||
1439 | int head_ref(each_ref_fn fn, void *cb_data) | |
1440 | { | |
23a3f0cb | 1441 | return refs_head_ref(get_main_ref_store(the_repository), fn, cb_data); |
2bf68ed5 | 1442 | } |
93770590 | 1443 | |
e121b9cb MH |
1444 | struct ref_iterator *refs_ref_iterator_begin( |
1445 | struct ref_store *refs, | |
1446 | const char *prefix, int trim, int flags) | |
1447 | { | |
1448 | struct ref_iterator *iter; | |
1449 | ||
0a0865b8 MH |
1450 | if (ref_paranoia < 0) |
1451 | ref_paranoia = git_env_bool("GIT_REF_PARANOIA", 0); | |
1452 | if (ref_paranoia) | |
1453 | flags |= DO_FOR_EACH_INCLUDE_BROKEN; | |
1454 | ||
e121b9cb | 1455 | iter = refs->be->iterator_begin(refs, prefix, flags); |
c7599718 MH |
1456 | |
1457 | /* | |
1458 | * `iterator_begin()` already takes care of prefix, but we | |
1459 | * might need to do some trimming: | |
1460 | */ | |
1461 | if (trim) | |
1462 | iter = prefix_ref_iterator_begin(iter, "", trim); | |
e121b9cb | 1463 | |
8738a8a4 MH |
1464 | /* Sanity check for subclasses: */ |
1465 | if (!iter->ordered) | |
1466 | BUG("reference iterator is not ordered"); | |
1467 | ||
e121b9cb MH |
1468 | return iter; |
1469 | } | |
1470 | ||
4c4de895 MH |
1471 | /* |
1472 | * Call fn for each reference in the specified submodule for which the | |
1473 | * refname begins with prefix. If trim is non-zero, then trim that | |
1474 | * many characters off the beginning of each refname before passing | |
1475 | * the refname to fn. flags can be DO_FOR_EACH_INCLUDE_BROKEN to | |
1476 | * include broken references in the iteration. If fn ever returns a | |
1477 | * non-zero value, stop the iteration and return that value; | |
1478 | * otherwise, return 0. | |
1479 | */ | |
4a6067cd SB |
1480 | static int do_for_each_repo_ref(struct repository *r, const char *prefix, |
1481 | each_repo_ref_fn fn, int trim, int flags, | |
1482 | void *cb_data) | |
1483 | { | |
1484 | struct ref_iterator *iter; | |
1485 | struct ref_store *refs = get_main_ref_store(r); | |
1486 | ||
1487 | if (!refs) | |
1488 | return 0; | |
1489 | ||
1490 | iter = refs_ref_iterator_begin(refs, prefix, trim, flags); | |
1491 | ||
1492 | return do_for_each_repo_ref_iterator(r, iter, fn, cb_data); | |
1493 | } | |
1494 | ||
1495 | struct do_for_each_ref_help { | |
1496 | each_ref_fn *fn; | |
1497 | void *cb_data; | |
1498 | }; | |
1499 | ||
1500 | static int do_for_each_ref_helper(struct repository *r, | |
1501 | const char *refname, | |
1502 | const struct object_id *oid, | |
1503 | int flags, | |
1504 | void *cb_data) | |
1505 | { | |
1506 | struct do_for_each_ref_help *hp = cb_data; | |
1507 | ||
1508 | return hp->fn(refname, oid, flags, hp->cb_data); | |
1509 | } | |
1510 | ||
7d2df051 | 1511 | static int do_for_each_ref(struct ref_store *refs, const char *prefix, |
4c4de895 MH |
1512 | each_ref_fn fn, int trim, int flags, void *cb_data) |
1513 | { | |
1514 | struct ref_iterator *iter; | |
4a6067cd | 1515 | struct do_for_each_ref_help hp = { fn, cb_data }; |
4c4de895 | 1516 | |
00eebe35 MH |
1517 | if (!refs) |
1518 | return 0; | |
1519 | ||
e121b9cb | 1520 | iter = refs_ref_iterator_begin(refs, prefix, trim, flags); |
4c4de895 | 1521 | |
4a6067cd SB |
1522 | return do_for_each_repo_ref_iterator(the_repository, iter, |
1523 | do_for_each_ref_helper, &hp); | |
4c4de895 MH |
1524 | } |
1525 | ||
7d2df051 NTND |
1526 | int refs_for_each_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
1527 | { | |
1528 | return do_for_each_ref(refs, "", fn, 0, 0, cb_data); | |
1529 | } | |
1530 | ||
93770590 DT |
1531 | int for_each_ref(each_ref_fn fn, void *cb_data) |
1532 | { | |
23a3f0cb | 1533 | return refs_for_each_ref(get_main_ref_store(the_repository), fn, cb_data); |
93770590 DT |
1534 | } |
1535 | ||
7d2df051 NTND |
1536 | int refs_for_each_ref_in(struct ref_store *refs, const char *prefix, |
1537 | each_ref_fn fn, void *cb_data) | |
1538 | { | |
1539 | return do_for_each_ref(refs, prefix, fn, strlen(prefix), 0, cb_data); | |
93770590 DT |
1540 | } |
1541 | ||
1542 | int for_each_ref_in(const char *prefix, each_ref_fn fn, void *cb_data) | |
1543 | { | |
23a3f0cb | 1544 | return refs_for_each_ref_in(get_main_ref_store(the_repository), prefix, fn, cb_data); |
93770590 DT |
1545 | } |
1546 | ||
1547 | int for_each_fullref_in(const char *prefix, each_ref_fn fn, void *cb_data, unsigned int broken) | |
1548 | { | |
1549 | unsigned int flag = 0; | |
1550 | ||
1551 | if (broken) | |
1552 | flag = DO_FOR_EACH_INCLUDE_BROKEN; | |
23a3f0cb | 1553 | return do_for_each_ref(get_main_ref_store(the_repository), |
7d2df051 | 1554 | prefix, fn, 0, flag, cb_data); |
93770590 DT |
1555 | } |
1556 | ||
073cf63c NTND |
1557 | int refs_for_each_fullref_in(struct ref_store *refs, const char *prefix, |
1558 | each_ref_fn fn, void *cb_data, | |
1559 | unsigned int broken) | |
03df567f MH |
1560 | { |
1561 | unsigned int flag = 0; | |
1562 | ||
1563 | if (broken) | |
1564 | flag = DO_FOR_EACH_INCLUDE_BROKEN; | |
073cf63c | 1565 | return do_for_each_ref(refs, prefix, fn, 0, flag, cb_data); |
03df567f MH |
1566 | } |
1567 | ||
212e0f7e | 1568 | int for_each_replace_ref(struct repository *r, each_repo_ref_fn fn, void *cb_data) |
93770590 | 1569 | { |
212e0f7e SB |
1570 | return do_for_each_repo_ref(r, git_replace_ref_base, fn, |
1571 | strlen(git_replace_ref_base), | |
1572 | DO_FOR_EACH_INCLUDE_BROKEN, cb_data); | |
93770590 DT |
1573 | } |
1574 | ||
1575 | int for_each_namespaced_ref(each_ref_fn fn, void *cb_data) | |
1576 | { | |
1577 | struct strbuf buf = STRBUF_INIT; | |
1578 | int ret; | |
1579 | strbuf_addf(&buf, "%srefs/", get_git_namespace()); | |
23a3f0cb | 1580 | ret = do_for_each_ref(get_main_ref_store(the_repository), |
7d2df051 | 1581 | buf.buf, fn, 0, 0, cb_data); |
93770590 DT |
1582 | strbuf_release(&buf); |
1583 | return ret; | |
1584 | } | |
1585 | ||
7d2df051 | 1586 | int refs_for_each_rawref(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
93770590 | 1587 | { |
7d2df051 | 1588 | return do_for_each_ref(refs, "", fn, 0, |
93770590 DT |
1589 | DO_FOR_EACH_INCLUDE_BROKEN, cb_data); |
1590 | } | |
2d0663b2 | 1591 | |
7d2df051 NTND |
1592 | int for_each_rawref(each_ref_fn fn, void *cb_data) |
1593 | { | |
23a3f0cb | 1594 | return refs_for_each_rawref(get_main_ref_store(the_repository), fn, cb_data); |
7d2df051 NTND |
1595 | } |
1596 | ||
470be518 | 1597 | int refs_read_raw_ref(struct ref_store *ref_store, |
99afe91a | 1598 | const char *refname, struct object_id *oid, |
470be518 MH |
1599 | struct strbuf *referent, unsigned int *type) |
1600 | { | |
99afe91a | 1601 | return ref_store->be->read_raw_ref(ref_store, refname, oid, referent, type); |
470be518 MH |
1602 | } |
1603 | ||
2d0663b2 | 1604 | /* This function needs to return a meaningful errno on failure */ |
7d2df051 | 1605 | const char *refs_resolve_ref_unsafe(struct ref_store *refs, |
3c0cb0cb MH |
1606 | const char *refname, |
1607 | int resolve_flags, | |
49e61479 | 1608 | struct object_id *oid, int *flags) |
2d0663b2 DT |
1609 | { |
1610 | static struct strbuf sb_refname = STRBUF_INIT; | |
54fad661 | 1611 | struct object_id unused_oid; |
2d0663b2 DT |
1612 | int unused_flags; |
1613 | int symref_count; | |
1614 | ||
49e61479 | 1615 | if (!oid) |
1616 | oid = &unused_oid; | |
2d0663b2 DT |
1617 | if (!flags) |
1618 | flags = &unused_flags; | |
1619 | ||
1620 | *flags = 0; | |
1621 | ||
1622 | if (check_refname_format(refname, REFNAME_ALLOW_ONELEVEL)) { | |
1623 | if (!(resolve_flags & RESOLVE_REF_ALLOW_BAD_NAME) || | |
1624 | !refname_is_safe(refname)) { | |
1625 | errno = EINVAL; | |
1626 | return NULL; | |
1627 | } | |
1628 | ||
1629 | /* | |
1630 | * dwim_ref() uses REF_ISBROKEN to distinguish between | |
1631 | * missing refs and refs that were present but invalid, | |
1632 | * to complain about the latter to stderr. | |
1633 | * | |
1634 | * We don't know whether the ref exists, so don't set | |
1635 | * REF_ISBROKEN yet. | |
1636 | */ | |
1637 | *flags |= REF_BAD_NAME; | |
1638 | } | |
1639 | ||
1640 | for (symref_count = 0; symref_count < SYMREF_MAXDEPTH; symref_count++) { | |
1641 | unsigned int read_flags = 0; | |
1642 | ||
470be518 | 1643 | if (refs_read_raw_ref(refs, refname, |
99afe91a | 1644 | oid, &sb_refname, &read_flags)) { |
2d0663b2 | 1645 | *flags |= read_flags; |
a1c1d817 JK |
1646 | |
1647 | /* In reading mode, refs must eventually resolve */ | |
1648 | if (resolve_flags & RESOLVE_REF_READING) | |
1649 | return NULL; | |
1650 | ||
1651 | /* | |
1652 | * Otherwise a missing ref is OK. But the files backend | |
1653 | * may show errors besides ENOENT if there are | |
1654 | * similarly-named refs. | |
1655 | */ | |
1656 | if (errno != ENOENT && | |
1657 | errno != EISDIR && | |
1658 | errno != ENOTDIR) | |
2d0663b2 | 1659 | return NULL; |
a1c1d817 | 1660 | |
49e61479 | 1661 | oidclr(oid); |
2d0663b2 DT |
1662 | if (*flags & REF_BAD_NAME) |
1663 | *flags |= REF_ISBROKEN; | |
1664 | return refname; | |
1665 | } | |
1666 | ||
1667 | *flags |= read_flags; | |
1668 | ||
1669 | if (!(read_flags & REF_ISSYMREF)) { | |
1670 | if (*flags & REF_BAD_NAME) { | |
49e61479 | 1671 | oidclr(oid); |
2d0663b2 DT |
1672 | *flags |= REF_ISBROKEN; |
1673 | } | |
1674 | return refname; | |
1675 | } | |
1676 | ||
1677 | refname = sb_refname.buf; | |
1678 | if (resolve_flags & RESOLVE_REF_NO_RECURSE) { | |
49e61479 | 1679 | oidclr(oid); |
2d0663b2 DT |
1680 | return refname; |
1681 | } | |
1682 | if (check_refname_format(refname, REFNAME_ALLOW_ONELEVEL)) { | |
1683 | if (!(resolve_flags & RESOLVE_REF_ALLOW_BAD_NAME) || | |
1684 | !refname_is_safe(refname)) { | |
1685 | errno = EINVAL; | |
1686 | return NULL; | |
1687 | } | |
1688 | ||
1689 | *flags |= REF_ISBROKEN | REF_BAD_NAME; | |
1690 | } | |
1691 | } | |
1692 | ||
1693 | errno = ELOOP; | |
1694 | return NULL; | |
1695 | } | |
00eebe35 | 1696 | |
6fb5acfd DT |
1697 | /* backend functions */ |
1698 | int refs_init_db(struct strbuf *err) | |
1699 | { | |
23a3f0cb | 1700 | struct ref_store *refs = get_main_ref_store(the_repository); |
6fb5acfd DT |
1701 | |
1702 | return refs->be->init_db(refs, err); | |
1703 | } | |
1704 | ||
bd40dcda | 1705 | const char *resolve_ref_unsafe(const char *refname, int resolve_flags, |
49e61479 | 1706 | struct object_id *oid, int *flags) |
bd40dcda | 1707 | { |
23a3f0cb | 1708 | return refs_resolve_ref_unsafe(get_main_ref_store(the_repository), refname, |
49e61479 | 1709 | resolve_flags, oid, flags); |
bd40dcda MH |
1710 | } |
1711 | ||
a8355bb7 | 1712 | int resolve_gitlink_ref(const char *submodule, const char *refname, |
a98e6101 | 1713 | struct object_id *oid) |
424dcc76 | 1714 | { |
424dcc76 MH |
1715 | struct ref_store *refs; |
1716 | int flags; | |
1717 | ||
29babbee | 1718 | refs = get_submodule_ref_store(submodule); |
48a8475f | 1719 | |
424dcc76 MH |
1720 | if (!refs) |
1721 | return -1; | |
1722 | ||
49e61479 | 1723 | if (!refs_resolve_ref_unsafe(refs, refname, 0, oid, &flags) || |
a98e6101 | 1724 | is_null_oid(oid)) |
424dcc76 MH |
1725 | return -1; |
1726 | return 0; | |
1727 | } | |
1728 | ||
0c064d90 | 1729 | struct ref_store_hash_entry |
7d4558c4 | 1730 | { |
e2b5038d | 1731 | struct hashmap_entry ent; |
7d4558c4 MH |
1732 | |
1733 | struct ref_store *refs; | |
1734 | ||
0c064d90 NTND |
1735 | /* NUL-terminated identifier of the ref store: */ |
1736 | char name[FLEX_ARRAY]; | |
7d4558c4 MH |
1737 | }; |
1738 | ||
7663cdc8 | 1739 | static int ref_store_hash_cmp(const void *unused_cmp_data, |
939af16e EW |
1740 | const struct hashmap_entry *eptr, |
1741 | const struct hashmap_entry *entry_or_key, | |
7d4558c4 MH |
1742 | const void *keydata) |
1743 | { | |
939af16e EW |
1744 | const struct ref_store_hash_entry *e1, *e2; |
1745 | const char *name; | |
1746 | ||
1747 | e1 = container_of(eptr, const struct ref_store_hash_entry, ent); | |
1748 | e2 = container_of(entry_or_key, const struct ref_store_hash_entry, ent); | |
1749 | name = keydata ? keydata : e2->name; | |
7d4558c4 | 1750 | |
0c064d90 | 1751 | return strcmp(e1->name, name); |
7d4558c4 MH |
1752 | } |
1753 | ||
0c064d90 NTND |
1754 | static struct ref_store_hash_entry *alloc_ref_store_hash_entry( |
1755 | const char *name, struct ref_store *refs) | |
7d4558c4 | 1756 | { |
0c064d90 | 1757 | struct ref_store_hash_entry *entry; |
7d4558c4 | 1758 | |
0c064d90 | 1759 | FLEX_ALLOC_STR(entry, name, name); |
d22245a2 | 1760 | hashmap_entry_init(&entry->ent, strhash(name)); |
7d4558c4 MH |
1761 | entry->refs = refs; |
1762 | return entry; | |
1763 | } | |
1764 | ||
7d4558c4 MH |
1765 | /* A hashmap of ref_stores, stored by submodule name: */ |
1766 | static struct hashmap submodule_ref_stores; | |
00eebe35 | 1767 | |
17eff96b NTND |
1768 | /* A hashmap of ref_stores, stored by worktree id: */ |
1769 | static struct hashmap worktree_ref_stores; | |
1770 | ||
c468da4e | 1771 | /* |
0c064d90 NTND |
1772 | * Look up a ref store by name. If that ref_store hasn't been |
1773 | * registered yet, return NULL. | |
c468da4e | 1774 | */ |
0c064d90 NTND |
1775 | static struct ref_store *lookup_ref_store_map(struct hashmap *map, |
1776 | const char *name) | |
00eebe35 | 1777 | { |
0c064d90 | 1778 | struct ref_store_hash_entry *entry; |
f23a4651 | 1779 | unsigned int hash; |
00eebe35 | 1780 | |
0c064d90 | 1781 | if (!map->tablesize) |
7d4558c4 MH |
1782 | /* It's initialized on demand in register_ref_store(). */ |
1783 | return NULL; | |
620a66b9 | 1784 | |
f23a4651 EW |
1785 | hash = strhash(name); |
1786 | entry = hashmap_get_entry_from_hash(map, hash, name, | |
1787 | struct ref_store_hash_entry, ent); | |
7d4558c4 | 1788 | return entry ? entry->refs : NULL; |
00eebe35 MH |
1789 | } |
1790 | ||
c468da4e MH |
1791 | /* |
1792 | * Create, record, and return a ref_store instance for the specified | |
5d0bc90e | 1793 | * gitdir. |
c468da4e | 1794 | */ |
9e7ec634 NTND |
1795 | static struct ref_store *ref_store_init(const char *gitdir, |
1796 | unsigned int flags) | |
00eebe35 MH |
1797 | { |
1798 | const char *be_name = "files"; | |
1799 | struct ref_storage_be *be = find_ref_storage_backend(be_name); | |
ba88add5 | 1800 | struct ref_store *refs; |
00eebe35 MH |
1801 | |
1802 | if (!be) | |
033abf97 | 1803 | BUG("reference backend %s is unknown", be_name); |
00eebe35 | 1804 | |
9e7ec634 | 1805 | refs = be->init(gitdir, flags); |
ba88add5 | 1806 | return refs; |
00eebe35 MH |
1807 | } |
1808 | ||
64a74161 | 1809 | struct ref_store *get_main_ref_store(struct repository *r) |
24c8407e | 1810 | { |
02204610 JK |
1811 | if (r->refs_private) |
1812 | return r->refs_private; | |
24c8407e | 1813 | |
2dc417ab JK |
1814 | if (!r->gitdir) |
1815 | BUG("attempting to get main_ref_store outside of repository"); | |
1816 | ||
02204610 JK |
1817 | r->refs_private = ref_store_init(r->gitdir, REF_STORE_ALL_CAPS); |
1818 | return r->refs_private; | |
378dc910 NTND |
1819 | } |
1820 | ||
1821 | /* | |
0c064d90 NTND |
1822 | * Associate a ref store with a name. It is a fatal error to call this |
1823 | * function twice for the same name. | |
378dc910 | 1824 | */ |
0c064d90 NTND |
1825 | static void register_ref_store_map(struct hashmap *map, |
1826 | const char *type, | |
1827 | struct ref_store *refs, | |
1828 | const char *name) | |
378dc910 | 1829 | { |
26b455f2 EW |
1830 | struct ref_store_hash_entry *entry; |
1831 | ||
0c064d90 | 1832 | if (!map->tablesize) |
7663cdc8 | 1833 | hashmap_init(map, ref_store_hash_cmp, NULL, 0); |
378dc910 | 1834 | |
26b455f2 EW |
1835 | entry = alloc_ref_store_hash_entry(name, refs); |
1836 | if (hashmap_put(map, &entry->ent)) | |
033abf97 | 1837 | BUG("%s ref_store '%s' initialized twice", type, name); |
24c8407e NTND |
1838 | } |
1839 | ||
18d0002d | 1840 | struct ref_store *get_submodule_ref_store(const char *submodule) |
00eebe35 | 1841 | { |
126c9e05 | 1842 | struct strbuf submodule_sb = STRBUF_INIT; |
00eebe35 | 1843 | struct ref_store *refs; |
29babbee NTND |
1844 | char *to_free = NULL; |
1845 | size_t len; | |
00eebe35 | 1846 | |
82a150f2 NTND |
1847 | if (!submodule) |
1848 | return NULL; | |
1849 | ||
873ea90d NTND |
1850 | len = strlen(submodule); |
1851 | while (len && is_dir_sep(submodule[len - 1])) | |
1852 | len--; | |
1853 | if (!len) | |
1854 | return NULL; | |
00eebe35 | 1855 | |
29babbee NTND |
1856 | if (submodule[len]) |
1857 | /* We need to strip off one or more trailing slashes */ | |
1858 | submodule = to_free = xmemdupz(submodule, len); | |
00eebe35 | 1859 | |
0c064d90 | 1860 | refs = lookup_ref_store_map(&submodule_ref_stores, submodule); |
126c9e05 | 1861 | if (refs) |
2c616c17 | 1862 | goto done; |
00eebe35 | 1863 | |
126c9e05 | 1864 | strbuf_addstr(&submodule_sb, submodule); |
2c616c17 NTND |
1865 | if (!is_nonbare_repository_dir(&submodule_sb)) |
1866 | goto done; | |
00eebe35 | 1867 | |
2c616c17 NTND |
1868 | if (submodule_to_gitdir(&submodule_sb, submodule)) |
1869 | goto done; | |
00eebe35 | 1870 | |
9e7ec634 NTND |
1871 | /* assume that add_submodule_odb() has been called */ |
1872 | refs = ref_store_init(submodule_sb.buf, | |
1873 | REF_STORE_READ | REF_STORE_ODB); | |
0c064d90 NTND |
1874 | register_ref_store_map(&submodule_ref_stores, "submodule", |
1875 | refs, submodule); | |
5d0bc90e | 1876 | |
2c616c17 | 1877 | done: |
5d0bc90e | 1878 | strbuf_release(&submodule_sb); |
29babbee NTND |
1879 | free(to_free); |
1880 | ||
00eebe35 MH |
1881 | return refs; |
1882 | } | |
1883 | ||
17eff96b NTND |
1884 | struct ref_store *get_worktree_ref_store(const struct worktree *wt) |
1885 | { | |
1886 | struct ref_store *refs; | |
1887 | const char *id; | |
1888 | ||
1889 | if (wt->is_current) | |
23a3f0cb | 1890 | return get_main_ref_store(the_repository); |
17eff96b NTND |
1891 | |
1892 | id = wt->id ? wt->id : "/"; | |
1893 | refs = lookup_ref_store_map(&worktree_ref_stores, id); | |
1894 | if (refs) | |
1895 | return refs; | |
1896 | ||
1897 | if (wt->id) | |
1898 | refs = ref_store_init(git_common_path("worktrees/%s", wt->id), | |
1899 | REF_STORE_ALL_CAPS); | |
1900 | else | |
1901 | refs = ref_store_init(get_git_common_dir(), | |
1902 | REF_STORE_ALL_CAPS); | |
1903 | ||
1904 | if (refs) | |
1905 | register_ref_store_map(&worktree_ref_stores, "worktree", | |
1906 | refs, id); | |
1907 | return refs; | |
1908 | } | |
1909 | ||
620a66b9 | 1910 | void base_ref_store_init(struct ref_store *refs, |
fbfd0a29 | 1911 | const struct ref_storage_be *be) |
00eebe35 | 1912 | { |
620a66b9 | 1913 | refs->be = be; |
00eebe35 | 1914 | } |
127b42a1 RS |
1915 | |
1916 | /* backend functions */ | |
7d2df051 | 1917 | int refs_pack_refs(struct ref_store *refs, unsigned int flags) |
8231527e | 1918 | { |
8231527e MH |
1919 | return refs->be->pack_refs(refs, flags); |
1920 | } | |
1921 | ||
7d2df051 | 1922 | int refs_peel_ref(struct ref_store *refs, const char *refname, |
b420d909 | 1923 | struct object_id *oid) |
7d2df051 | 1924 | { |
ba1c052f | 1925 | int flag; |
34c290a6 | 1926 | struct object_id base; |
ba1c052f MH |
1927 | |
1928 | if (current_ref_iter && current_ref_iter->refname == refname) { | |
1929 | struct object_id peeled; | |
1930 | ||
1931 | if (ref_iterator_peel(current_ref_iter, &peeled)) | |
1932 | return -1; | |
b420d909 | 1933 | oidcpy(oid, &peeled); |
ba1c052f MH |
1934 | return 0; |
1935 | } | |
1936 | ||
1937 | if (refs_read_ref_full(refs, refname, | |
34c290a6 | 1938 | RESOLVE_REF_READING, &base, &flag)) |
ba1c052f MH |
1939 | return -1; |
1940 | ||
ac2ed0d7 | 1941 | return peel_object(&base, oid); |
8231527e MH |
1942 | } |
1943 | ||
b420d909 | 1944 | int peel_ref(const char *refname, struct object_id *oid) |
bd427cf2 | 1945 | { |
23a3f0cb | 1946 | return refs_peel_ref(get_main_ref_store(the_repository), refname, oid); |
7d2df051 | 1947 | } |
bd427cf2 | 1948 | |
7d2df051 NTND |
1949 | int refs_create_symref(struct ref_store *refs, |
1950 | const char *ref_target, | |
1951 | const char *refs_heads_master, | |
1952 | const char *logmsg) | |
1953 | { | |
1954 | return refs->be->create_symref(refs, ref_target, | |
1955 | refs_heads_master, | |
1956 | logmsg); | |
bd427cf2 MH |
1957 | } |
1958 | ||
284689ba MH |
1959 | int create_symref(const char *ref_target, const char *refs_heads_master, |
1960 | const char *logmsg) | |
1961 | { | |
23a3f0cb | 1962 | return refs_create_symref(get_main_ref_store(the_repository), ref_target, |
7d2df051 | 1963 | refs_heads_master, logmsg); |
284689ba MH |
1964 | } |
1965 | ||
2ced105c MH |
1966 | int ref_update_reject_duplicates(struct string_list *refnames, |
1967 | struct strbuf *err) | |
1968 | { | |
a552e50e | 1969 | size_t i, n = refnames->nr; |
2ced105c MH |
1970 | |
1971 | assert(err); | |
1972 | ||
8556f8d6 MH |
1973 | for (i = 1; i < n; i++) { |
1974 | int cmp = strcmp(refnames->items[i - 1].string, | |
1975 | refnames->items[i].string); | |
1976 | ||
1977 | if (!cmp) { | |
2ced105c | 1978 | strbuf_addf(err, |
661558f0 | 1979 | _("multiple updates for ref '%s' not allowed"), |
2ced105c MH |
1980 | refnames->items[i].string); |
1981 | return 1; | |
8556f8d6 | 1982 | } else if (cmp > 0) { |
033abf97 | 1983 | BUG("ref_update_reject_duplicates() received unsorted list"); |
2ced105c | 1984 | } |
8556f8d6 | 1985 | } |
2ced105c MH |
1986 | return 0; |
1987 | } | |
1988 | ||
30173b88 MH |
1989 | int ref_transaction_prepare(struct ref_transaction *transaction, |
1990 | struct strbuf *err) | |
127b42a1 | 1991 | { |
c0fe4e8b | 1992 | struct ref_store *refs = transaction->ref_store; |
127b42a1 | 1993 | |
8d4240d3 MH |
1994 | switch (transaction->state) { |
1995 | case REF_TRANSACTION_OPEN: | |
1996 | /* Good. */ | |
1997 | break; | |
30173b88 | 1998 | case REF_TRANSACTION_PREPARED: |
033abf97 | 1999 | BUG("prepare called twice on reference transaction"); |
30173b88 | 2000 | break; |
8d4240d3 | 2001 | case REF_TRANSACTION_CLOSED: |
033abf97 | 2002 | BUG("prepare called on a closed reference transaction"); |
8d4240d3 MH |
2003 | break; |
2004 | default: | |
033abf97 | 2005 | BUG("unexpected reference transaction state"); |
8d4240d3 MH |
2006 | break; |
2007 | } | |
2008 | ||
d8f4481c JK |
2009 | if (getenv(GIT_QUARANTINE_ENVIRONMENT)) { |
2010 | strbuf_addstr(err, | |
2011 | _("ref updates forbidden inside quarantine environment")); | |
2012 | return -1; | |
2013 | } | |
2014 | ||
30173b88 MH |
2015 | return refs->be->transaction_prepare(refs, transaction, err); |
2016 | } | |
2017 | ||
2018 | int ref_transaction_abort(struct ref_transaction *transaction, | |
2019 | struct strbuf *err) | |
2020 | { | |
2021 | struct ref_store *refs = transaction->ref_store; | |
2022 | int ret = 0; | |
2023 | ||
2024 | switch (transaction->state) { | |
2025 | case REF_TRANSACTION_OPEN: | |
2026 | /* No need to abort explicitly. */ | |
2027 | break; | |
2028 | case REF_TRANSACTION_PREPARED: | |
2029 | ret = refs->be->transaction_abort(refs, transaction, err); | |
2030 | break; | |
2031 | case REF_TRANSACTION_CLOSED: | |
033abf97 | 2032 | BUG("abort called on a closed reference transaction"); |
30173b88 MH |
2033 | break; |
2034 | default: | |
033abf97 | 2035 | BUG("unexpected reference transaction state"); |
30173b88 MH |
2036 | break; |
2037 | } | |
2038 | ||
2039 | ref_transaction_free(transaction); | |
2040 | return ret; | |
2041 | } | |
2042 | ||
2043 | int ref_transaction_commit(struct ref_transaction *transaction, | |
2044 | struct strbuf *err) | |
2045 | { | |
2046 | struct ref_store *refs = transaction->ref_store; | |
2047 | int ret; | |
2048 | ||
2049 | switch (transaction->state) { | |
2050 | case REF_TRANSACTION_OPEN: | |
2051 | /* Need to prepare first. */ | |
2052 | ret = ref_transaction_prepare(transaction, err); | |
2053 | if (ret) | |
2054 | return ret; | |
2055 | break; | |
2056 | case REF_TRANSACTION_PREPARED: | |
2057 | /* Fall through to finish. */ | |
2058 | break; | |
2059 | case REF_TRANSACTION_CLOSED: | |
033abf97 | 2060 | BUG("commit called on a closed reference transaction"); |
30173b88 MH |
2061 | break; |
2062 | default: | |
033abf97 | 2063 | BUG("unexpected reference transaction state"); |
30173b88 MH |
2064 | break; |
2065 | } | |
2066 | ||
2067 | return refs->be->transaction_finish(refs, transaction, err); | |
127b42a1 | 2068 | } |
62665823 | 2069 | |
7d2df051 NTND |
2070 | int refs_verify_refname_available(struct ref_store *refs, |
2071 | const char *refname, | |
b05855b5 | 2072 | const struct string_list *extras, |
7d2df051 NTND |
2073 | const struct string_list *skip, |
2074 | struct strbuf *err) | |
62665823 | 2075 | { |
b05855b5 MH |
2076 | const char *slash; |
2077 | const char *extra_refname; | |
2078 | struct strbuf dirname = STRBUF_INIT; | |
2079 | struct strbuf referent = STRBUF_INIT; | |
2080 | struct object_id oid; | |
2081 | unsigned int type; | |
2082 | struct ref_iterator *iter; | |
2083 | int ok; | |
2084 | int ret = -1; | |
2085 | ||
2086 | /* | |
2087 | * For the sake of comments in this function, suppose that | |
2088 | * refname is "refs/foo/bar". | |
2089 | */ | |
2090 | ||
2091 | assert(err); | |
2092 | ||
2093 | strbuf_grow(&dirname, strlen(refname) + 1); | |
2094 | for (slash = strchr(refname, '/'); slash; slash = strchr(slash + 1, '/')) { | |
2095 | /* Expand dirname to the new prefix, not including the trailing slash: */ | |
2096 | strbuf_add(&dirname, refname + dirname.len, slash - refname - dirname.len); | |
2097 | ||
2098 | /* | |
2099 | * We are still at a leading dir of the refname (e.g., | |
2100 | * "refs/foo"; if there is a reference with that name, | |
2101 | * it is a conflict, *unless* it is in skip. | |
2102 | */ | |
2103 | if (skip && string_list_has_string(skip, dirname.buf)) | |
2104 | continue; | |
2105 | ||
99afe91a | 2106 | if (!refs_read_raw_ref(refs, dirname.buf, &oid, &referent, &type)) { |
661558f0 | 2107 | strbuf_addf(err, _("'%s' exists; cannot create '%s'"), |
b05855b5 MH |
2108 | dirname.buf, refname); |
2109 | goto cleanup; | |
2110 | } | |
2111 | ||
2112 | if (extras && string_list_has_string(extras, dirname.buf)) { | |
661558f0 | 2113 | strbuf_addf(err, _("cannot process '%s' and '%s' at the same time"), |
b05855b5 MH |
2114 | refname, dirname.buf); |
2115 | goto cleanup; | |
2116 | } | |
2117 | } | |
2118 | ||
2119 | /* | |
2120 | * We are at the leaf of our refname (e.g., "refs/foo/bar"). | |
2121 | * There is no point in searching for a reference with that | |
2122 | * name, because a refname isn't considered to conflict with | |
2123 | * itself. But we still need to check for references whose | |
2124 | * names are in the "refs/foo/bar/" namespace, because they | |
2125 | * *do* conflict. | |
2126 | */ | |
2127 | strbuf_addstr(&dirname, refname + dirname.len); | |
2128 | strbuf_addch(&dirname, '/'); | |
2129 | ||
2130 | iter = refs_ref_iterator_begin(refs, dirname.buf, 0, | |
2131 | DO_FOR_EACH_INCLUDE_BROKEN); | |
2132 | while ((ok = ref_iterator_advance(iter)) == ITER_OK) { | |
2133 | if (skip && | |
2134 | string_list_has_string(skip, iter->refname)) | |
2135 | continue; | |
2136 | ||
661558f0 | 2137 | strbuf_addf(err, _("'%s' exists; cannot create '%s'"), |
b05855b5 MH |
2138 | iter->refname, refname); |
2139 | ref_iterator_abort(iter); | |
2140 | goto cleanup; | |
2141 | } | |
2142 | ||
2143 | if (ok != ITER_DONE) | |
033abf97 | 2144 | BUG("error while iterating over references"); |
b05855b5 MH |
2145 | |
2146 | extra_refname = find_descendant_ref(dirname.buf, extras, skip); | |
2147 | if (extra_refname) | |
661558f0 | 2148 | strbuf_addf(err, _("cannot process '%s' and '%s' at the same time"), |
b05855b5 MH |
2149 | refname, extra_refname); |
2150 | else | |
2151 | ret = 0; | |
2152 | ||
2153 | cleanup: | |
2154 | strbuf_release(&referent); | |
2155 | strbuf_release(&dirname); | |
2156 | return ret; | |
62665823 | 2157 | } |
e3688bd6 | 2158 | |
7d2df051 | 2159 | int refs_for_each_reflog(struct ref_store *refs, each_ref_fn fn, void *cb_data) |
e3688bd6 | 2160 | { |
e3688bd6 | 2161 | struct ref_iterator *iter; |
4a6067cd | 2162 | struct do_for_each_ref_help hp = { fn, cb_data }; |
e3688bd6 DT |
2163 | |
2164 | iter = refs->be->reflog_iterator_begin(refs); | |
2165 | ||
4a6067cd SB |
2166 | return do_for_each_repo_ref_iterator(the_repository, iter, |
2167 | do_for_each_ref_helper, &hp); | |
e3688bd6 DT |
2168 | } |
2169 | ||
7d2df051 | 2170 | int for_each_reflog(each_ref_fn fn, void *cb_data) |
e3688bd6 | 2171 | { |
23a3f0cb | 2172 | return refs_for_each_reflog(get_main_ref_store(the_repository), fn, cb_data); |
7d2df051 | 2173 | } |
e3688bd6 | 2174 | |
7d2df051 NTND |
2175 | int refs_for_each_reflog_ent_reverse(struct ref_store *refs, |
2176 | const char *refname, | |
2177 | each_reflog_ent_fn fn, | |
2178 | void *cb_data) | |
2179 | { | |
e3688bd6 DT |
2180 | return refs->be->for_each_reflog_ent_reverse(refs, refname, |
2181 | fn, cb_data); | |
2182 | } | |
2183 | ||
7d2df051 NTND |
2184 | int for_each_reflog_ent_reverse(const char *refname, each_reflog_ent_fn fn, |
2185 | void *cb_data) | |
2186 | { | |
23a3f0cb | 2187 | return refs_for_each_reflog_ent_reverse(get_main_ref_store(the_repository), |
7d2df051 NTND |
2188 | refname, fn, cb_data); |
2189 | } | |
2190 | ||
2191 | int refs_for_each_reflog_ent(struct ref_store *refs, const char *refname, | |
2192 | each_reflog_ent_fn fn, void *cb_data) | |
2193 | { | |
2194 | return refs->be->for_each_reflog_ent(refs, refname, fn, cb_data); | |
2195 | } | |
2196 | ||
e3688bd6 DT |
2197 | int for_each_reflog_ent(const char *refname, each_reflog_ent_fn fn, |
2198 | void *cb_data) | |
2199 | { | |
23a3f0cb | 2200 | return refs_for_each_reflog_ent(get_main_ref_store(the_repository), refname, |
7d2df051 NTND |
2201 | fn, cb_data); |
2202 | } | |
e3688bd6 | 2203 | |
7d2df051 NTND |
2204 | int refs_reflog_exists(struct ref_store *refs, const char *refname) |
2205 | { | |
2206 | return refs->be->reflog_exists(refs, refname); | |
e3688bd6 DT |
2207 | } |
2208 | ||
2209 | int reflog_exists(const char *refname) | |
2210 | { | |
23a3f0cb | 2211 | return refs_reflog_exists(get_main_ref_store(the_repository), refname); |
7d2df051 | 2212 | } |
e3688bd6 | 2213 | |
7d2df051 NTND |
2214 | int refs_create_reflog(struct ref_store *refs, const char *refname, |
2215 | int force_create, struct strbuf *err) | |
2216 | { | |
2217 | return refs->be->create_reflog(refs, refname, force_create, err); | |
e3688bd6 DT |
2218 | } |
2219 | ||
2220 | int safe_create_reflog(const char *refname, int force_create, | |
2221 | struct strbuf *err) | |
2222 | { | |
23a3f0cb | 2223 | return refs_create_reflog(get_main_ref_store(the_repository), refname, |
7d2df051 NTND |
2224 | force_create, err); |
2225 | } | |
e3688bd6 | 2226 | |
7d2df051 NTND |
2227 | int refs_delete_reflog(struct ref_store *refs, const char *refname) |
2228 | { | |
2229 | return refs->be->delete_reflog(refs, refname); | |
e3688bd6 DT |
2230 | } |
2231 | ||
2232 | int delete_reflog(const char *refname) | |
2233 | { | |
23a3f0cb | 2234 | return refs_delete_reflog(get_main_ref_store(the_repository), refname); |
7d2df051 | 2235 | } |
e3688bd6 | 2236 | |
7d2df051 | 2237 | int refs_reflog_expire(struct ref_store *refs, |
0155f710 | 2238 | const char *refname, const struct object_id *oid, |
7d2df051 NTND |
2239 | unsigned int flags, |
2240 | reflog_expiry_prepare_fn prepare_fn, | |
2241 | reflog_expiry_should_prune_fn should_prune_fn, | |
2242 | reflog_expiry_cleanup_fn cleanup_fn, | |
2243 | void *policy_cb_data) | |
2244 | { | |
0155f710 | 2245 | return refs->be->reflog_expire(refs, refname, oid, flags, |
7d2df051 NTND |
2246 | prepare_fn, should_prune_fn, |
2247 | cleanup_fn, policy_cb_data); | |
e3688bd6 DT |
2248 | } |
2249 | ||
0155f710 | 2250 | int reflog_expire(const char *refname, const struct object_id *oid, |
e3688bd6 DT |
2251 | unsigned int flags, |
2252 | reflog_expiry_prepare_fn prepare_fn, | |
2253 | reflog_expiry_should_prune_fn should_prune_fn, | |
2254 | reflog_expiry_cleanup_fn cleanup_fn, | |
2255 | void *policy_cb_data) | |
2256 | { | |
23a3f0cb | 2257 | return refs_reflog_expire(get_main_ref_store(the_repository), |
0155f710 | 2258 | refname, oid, flags, |
7d2df051 NTND |
2259 | prepare_fn, should_prune_fn, |
2260 | cleanup_fn, policy_cb_data); | |
e3688bd6 | 2261 | } |
fc681463 DT |
2262 | |
2263 | int initial_ref_transaction_commit(struct ref_transaction *transaction, | |
2264 | struct strbuf *err) | |
2265 | { | |
c0fe4e8b | 2266 | struct ref_store *refs = transaction->ref_store; |
fc681463 DT |
2267 | |
2268 | return refs->be->initial_transaction_commit(refs, transaction, err); | |
2269 | } | |
a27dcf89 | 2270 | |
64da4199 MH |
2271 | int refs_delete_refs(struct ref_store *refs, const char *msg, |
2272 | struct string_list *refnames, unsigned int flags) | |
a27dcf89 | 2273 | { |
64da4199 | 2274 | return refs->be->delete_refs(refs, msg, refnames, flags); |
a27dcf89 | 2275 | } |
9b6b40d9 | 2276 | |
64da4199 MH |
2277 | int delete_refs(const char *msg, struct string_list *refnames, |
2278 | unsigned int flags) | |
9b6b40d9 | 2279 | { |
23a3f0cb | 2280 | return refs_delete_refs(get_main_ref_store(the_repository), msg, refnames, flags); |
7d2df051 | 2281 | } |
9b6b40d9 | 2282 | |
7d2df051 NTND |
2283 | int refs_rename_ref(struct ref_store *refs, const char *oldref, |
2284 | const char *newref, const char *logmsg) | |
2285 | { | |
9b6b40d9 DT |
2286 | return refs->be->rename_ref(refs, oldref, newref, logmsg); |
2287 | } | |
7d2df051 NTND |
2288 | |
2289 | int rename_ref(const char *oldref, const char *newref, const char *logmsg) | |
2290 | { | |
23a3f0cb | 2291 | return refs_rename_ref(get_main_ref_store(the_repository), oldref, newref, logmsg); |
7d2df051 | 2292 | } |
52d59cc6 SD |
2293 | |
2294 | int refs_copy_existing_ref(struct ref_store *refs, const char *oldref, | |
2295 | const char *newref, const char *logmsg) | |
2296 | { | |
2297 | return refs->be->copy_ref(refs, oldref, newref, logmsg); | |
2298 | } | |
2299 | ||
2300 | int copy_existing_ref(const char *oldref, const char *newref, const char *logmsg) | |
2301 | { | |
23a3f0cb | 2302 | return refs_copy_existing_ref(get_main_ref_store(the_repository), oldref, newref, logmsg); |
52d59cc6 | 2303 | } |