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Commit | Line | Data |
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9282e921 | 1 | /* |
359fc2d2 | 2 | * Copyright (C) the libgit2 contributors. All rights reserved. |
9282e921 | 3 | * |
bb742ede VM |
4 | * This file is part of libgit2, distributed under the GNU GPL v2 with |
5 | * a Linking Exception. For full terms see the included COPYING file. | |
9282e921 | 6 | */ |
7 | ||
8 | #include "refs.h" | |
9 | #include "hash.h" | |
10 | #include "repository.h" | |
11 | #include "fileops.h" | |
114f5a6c | 12 | #include "filebuf.h" |
01ad7b3a | 13 | #include "pack.h" |
a5cd086d | 14 | #include "reflog.h" |
d00d5464 | 15 | #include "refdb.h" |
9282e921 | 16 | |
87d3acf4 VM |
17 | #include <git2/tag.h> |
18 | #include <git2/object.h> | |
c07d9c95 | 19 | #include <git2/oid.h> |
4ba23be1 | 20 | #include <git2/branch.h> |
d00d5464 ET |
21 | #include <git2/refs.h> |
22 | #include <git2/refdb.h> | |
21ca0451 | 23 | #include <git2/sys/refs.h> |
a57dd3b7 | 24 | #include <git2/signature.h> |
a612a25f | 25 | #include <git2/commit.h> |
87d3acf4 | 26 | |
c8e02b87 | 27 | GIT__USE_STRMAP |
01fed0a8 | 28 | |
f201d613 RB |
29 | #define DEFAULT_NESTING_LEVEL 5 |
30 | #define MAX_NESTING_LEVEL 10 | |
9282e921 | 31 | |
d4a0b124 VM |
32 | enum { |
33 | GIT_PACKREF_HAS_PEEL = 1, | |
34 | GIT_PACKREF_WAS_LOOSE = 2 | |
35 | }; | |
86194b24 | 36 | |
4e4eab52 | 37 | static git_reference *alloc_ref(const char *name) |
3be933b1 | 38 | { |
f1453c59 ET |
39 | git_reference *ref = NULL; |
40 | size_t namelen = strlen(name), reflen; | |
3be933b1 | 41 | |
f1453c59 ET |
42 | if (!GIT_ADD_SIZET_OVERFLOW(&reflen, sizeof(git_reference), namelen) && |
43 | !GIT_ADD_SIZET_OVERFLOW(&reflen, reflen, 1) && | |
44 | (ref = git__calloc(1, reflen)) != NULL) | |
45 | memcpy(ref->name, name, namelen + 1); | |
3be933b1 VM |
46 | |
47 | return ref; | |
48 | } | |
49 | ||
50 | git_reference *git_reference__alloc_symbolic( | |
21ca0451 | 51 | const char *name, const char *target) |
2f8a8ab2 | 52 | { |
d00d5464 | 53 | git_reference *ref; |
2f8a8ab2 | 54 | |
4e4eab52 | 55 | assert(name && target); |
55e0f53d | 56 | |
4e4eab52 | 57 | ref = alloc_ref(name); |
3be933b1 | 58 | if (!ref) |
d00d5464 | 59 | return NULL; |
87d3acf4 | 60 | |
3be933b1 | 61 | ref->type = GIT_REF_SYMBOLIC; |
87d3acf4 | 62 | |
3be933b1 VM |
63 | if ((ref->target.symbolic = git__strdup(target)) == NULL) { |
64 | git__free(ref); | |
65 | return NULL; | |
d79f1da6 | 66 | } |
55e0f53d | 67 | |
3be933b1 VM |
68 | return ref; |
69 | } | |
70 | ||
71 | git_reference *git_reference__alloc( | |
3be933b1 VM |
72 | const char *name, |
73 | const git_oid *oid, | |
74 | const git_oid *peel) | |
75 | { | |
76 | git_reference *ref; | |
77 | ||
4e4eab52 | 78 | assert(name && oid); |
3be933b1 | 79 | |
4e4eab52 | 80 | ref = alloc_ref(name); |
3be933b1 VM |
81 | if (!ref) |
82 | return NULL; | |
83 | ||
84 | ref->type = GIT_REF_OID; | |
fedd0f9e | 85 | git_oid_cpy(&ref->target.oid, oid); |
3be933b1 VM |
86 | |
87 | if (peel != NULL) | |
fedd0f9e | 88 | git_oid_cpy(&ref->peel, peel); |
55e0f53d | 89 | |
d00d5464 | 90 | return ref; |
2f8a8ab2 | 91 | } |
9282e921 | 92 | |
24c71f14 RB |
93 | git_reference *git_reference__set_name( |
94 | git_reference *ref, const char *name) | |
95 | { | |
96 | size_t namelen = strlen(name); | |
f1453c59 | 97 | size_t reflen; |
392702ee ET |
98 | git_reference *rewrite = NULL; |
99 | ||
f1453c59 ET |
100 | if (!GIT_ADD_SIZET_OVERFLOW(&reflen, sizeof(git_reference), namelen) && |
101 | !GIT_ADD_SIZET_OVERFLOW(&reflen, reflen, 1) && | |
102 | (rewrite = git__realloc(ref, reflen)) != NULL) | |
24c71f14 | 103 | memcpy(rewrite->name, name, namelen + 1); |
392702ee | 104 | |
24c71f14 RB |
105 | return rewrite; |
106 | } | |
107 | ||
d00d5464 | 108 | void git_reference_free(git_reference *reference) |
2f8a8ab2 | 109 | { |
d00d5464 ET |
110 | if (reference == NULL) |
111 | return; | |
2b397327 | 112 | |
3be933b1 | 113 | if (reference->type == GIT_REF_SYMBOLIC) |
d00d5464 | 114 | git__free(reference->target.symbolic); |
2f8a8ab2 | 115 | |
979f75d8 VM |
116 | if (reference->db) |
117 | GIT_REFCOUNT_DEC(reference->db, git_refdb__free); | |
d00d5464 | 118 | |
d00d5464 | 119 | git__free(reference); |
d4a0b124 | 120 | } |
2f8a8ab2 | 121 | |
1a481123 | 122 | int git_reference_delete(git_reference *ref) |
a46ec457 | 123 | { |
f44fd59e CMN |
124 | const git_oid *old_id = NULL; |
125 | const char *old_target = NULL; | |
126 | ||
127 | if (ref->type == GIT_REF_OID) | |
128 | old_id = &ref->target.oid; | |
129 | else | |
130 | old_target = ref->target.symbolic; | |
131 | ||
132 | return git_refdb_delete(ref->db, ref->name, old_id, old_target); | |
a46ec457 MS |
133 | } |
134 | ||
5367ec4b CMN |
135 | int git_reference_remove(git_repository *repo, const char *name) |
136 | { | |
137 | git_refdb *db; | |
138 | int error; | |
139 | ||
140 | if ((error = git_repository_refdb__weakptr(&db, repo)) < 0) | |
141 | return error; | |
142 | ||
143 | return git_refdb_delete(db, name, NULL, NULL); | |
144 | } | |
145 | ||
d4a0b124 | 146 | int git_reference_lookup(git_reference **ref_out, |
1a481123 | 147 | git_repository *repo, const char *name) |
a46ec457 | 148 | { |
f201d613 RB |
149 | return git_reference_lookup_resolved(ref_out, repo, name, 0); |
150 | } | |
151 | ||
2508cc66 | 152 | int git_reference_name_to_id( |
f201d613 RB |
153 | git_oid *out, git_repository *repo, const char *name) |
154 | { | |
155 | int error; | |
156 | git_reference *ref; | |
157 | ||
158 | if ((error = git_reference_lookup_resolved(&ref, repo, name, -1)) < 0) | |
159 | return error; | |
160 | ||
2508cc66 | 161 | git_oid_cpy(out, git_reference_target(ref)); |
f201d613 RB |
162 | git_reference_free(ref); |
163 | return 0; | |
164 | } | |
165 | ||
92dac975 | 166 | static int reference_normalize_for_repo( |
824f755f | 167 | git_refname_t out, |
92dac975 RB |
168 | git_repository *repo, |
169 | const char *name) | |
170 | { | |
171 | int precompose; | |
172 | unsigned int flags = GIT_REF_FORMAT_ALLOW_ONELEVEL; | |
173 | ||
174 | if (!git_repository__cvar(&precompose, repo, GIT_CVAR_PRECOMPOSE) && | |
175 | precompose) | |
176 | flags |= GIT_REF_FORMAT__PRECOMPOSE_UNICODE; | |
177 | ||
824f755f | 178 | return git_reference_normalize_name(out, GIT_REFNAME_MAX, name, flags); |
92dac975 RB |
179 | } |
180 | ||
f201d613 RB |
181 | int git_reference_lookup_resolved( |
182 | git_reference **ref_out, | |
183 | git_repository *repo, | |
184 | const char *name, | |
185 | int max_nesting) | |
186 | { | |
824f755f | 187 | git_refname_t scan_name; |
d00d5464 ET |
188 | git_ref_t scan_type; |
189 | int error = 0, nesting; | |
190 | git_reference *ref = NULL; | |
191 | git_refdb *refdb; | |
d4a0b124 VM |
192 | |
193 | assert(ref_out && repo && name); | |
f201d613 | 194 | |
1a481123 | 195 | *ref_out = NULL; |
d4a0b124 | 196 | |
f201d613 RB |
197 | if (max_nesting > MAX_NESTING_LEVEL) |
198 | max_nesting = MAX_NESTING_LEVEL; | |
199 | else if (max_nesting < 0) | |
200 | max_nesting = DEFAULT_NESTING_LEVEL; | |
4dcd8780 | 201 | |
d00d5464 | 202 | scan_type = GIT_REF_SYMBOLIC; |
4dcd8780 | 203 | |
824f755f | 204 | if ((error = reference_normalize_for_repo(scan_name, repo, name)) < 0) |
92dac975 | 205 | return error; |
a46ec457 | 206 | |
92dac975 | 207 | if ((error = git_repository_refdb__weakptr(&refdb, repo)) < 0) |
d00d5464 | 208 | return error; |
f201d613 RB |
209 | |
210 | for (nesting = max_nesting; | |
d00d5464 | 211 | nesting >= 0 && scan_type == GIT_REF_SYMBOLIC; |
f201d613 RB |
212 | nesting--) |
213 | { | |
d00d5464 | 214 | if (nesting != max_nesting) { |
92dac975 | 215 | strncpy(scan_name, ref->target.symbolic, sizeof(scan_name)); |
d00d5464 ET |
216 | git_reference_free(ref); |
217 | } | |
f201d613 | 218 | |
d00d5464 ET |
219 | if ((error = git_refdb_lookup(&ref, refdb, scan_name)) < 0) |
220 | return error; | |
4dcd8780 | 221 | |
d00d5464 | 222 | scan_type = ref->type; |
f201d613 RB |
223 | } |
224 | ||
d00d5464 | 225 | if (scan_type != GIT_REF_OID && max_nesting != 0) { |
f201d613 RB |
226 | giterr_set(GITERR_REFERENCE, |
227 | "Cannot resolve reference (>%u levels deep)", max_nesting); | |
d00d5464 | 228 | git_reference_free(ref); |
f201d613 RB |
229 | return -1; |
230 | } | |
231 | ||
d00d5464 | 232 | *ref_out = ref; |
f201d613 | 233 | return 0; |
a46ec457 MS |
234 | } |
235 | ||
98d633cc CMN |
236 | int git_reference_dwim(git_reference **out, git_repository *repo, const char *refname) |
237 | { | |
238 | int error = 0, i; | |
239 | bool fallbackmode = true, foundvalid = false; | |
240 | git_reference *ref; | |
241 | git_buf refnamebuf = GIT_BUF_INIT, name = GIT_BUF_INIT; | |
242 | ||
243 | static const char* formatters[] = { | |
244 | "%s", | |
245 | GIT_REFS_DIR "%s", | |
246 | GIT_REFS_TAGS_DIR "%s", | |
247 | GIT_REFS_HEADS_DIR "%s", | |
248 | GIT_REFS_REMOTES_DIR "%s", | |
249 | GIT_REFS_REMOTES_DIR "%s/" GIT_HEAD_FILE, | |
250 | NULL | |
251 | }; | |
252 | ||
253 | if (*refname) | |
254 | git_buf_puts(&name, refname); | |
255 | else { | |
256 | git_buf_puts(&name, GIT_HEAD_FILE); | |
257 | fallbackmode = false; | |
258 | } | |
259 | ||
260 | for (i = 0; formatters[i] && (fallbackmode || i == 0); i++) { | |
261 | ||
262 | git_buf_clear(&refnamebuf); | |
263 | ||
264 | if ((error = git_buf_printf(&refnamebuf, formatters[i], git_buf_cstr(&name))) < 0) | |
265 | goto cleanup; | |
266 | ||
267 | if (!git_reference_is_valid_name(git_buf_cstr(&refnamebuf))) { | |
268 | error = GIT_EINVALIDSPEC; | |
269 | continue; | |
270 | } | |
271 | foundvalid = true; | |
272 | ||
273 | error = git_reference_lookup_resolved(&ref, repo, git_buf_cstr(&refnamebuf), -1); | |
274 | ||
275 | if (!error) { | |
276 | *out = ref; | |
277 | error = 0; | |
278 | goto cleanup; | |
279 | } | |
280 | ||
281 | if (error != GIT_ENOTFOUND) | |
282 | goto cleanup; | |
283 | } | |
284 | ||
285 | cleanup: | |
286 | if (error && !foundvalid) { | |
287 | /* never found a valid reference name */ | |
288 | giterr_set(GITERR_REFERENCE, | |
289 | "Could not use '%s' as valid reference name", git_buf_cstr(&name)); | |
290 | } | |
291 | ||
292 | git_buf_free(&name); | |
293 | git_buf_free(&refnamebuf); | |
294 | return error; | |
295 | } | |
296 | ||
d4a0b124 VM |
297 | /** |
298 | * Getters | |
299 | */ | |
2508cc66 | 300 | git_ref_t git_reference_type(const git_reference *ref) |
87d3acf4 VM |
301 | { |
302 | assert(ref); | |
d00d5464 | 303 | return ref->type; |
87d3acf4 VM |
304 | } |
305 | ||
2508cc66 | 306 | const char *git_reference_name(const git_reference *ref) |
87d3acf4 VM |
307 | { |
308 | assert(ref); | |
d4a0b124 | 309 | return ref->name; |
87d3acf4 VM |
310 | } |
311 | ||
2508cc66 | 312 | git_repository *git_reference_owner(const git_reference *ref) |
a46ec457 | 313 | { |
d4a0b124 | 314 | assert(ref); |
d00d5464 | 315 | return ref->db->repo; |
a46ec457 MS |
316 | } |
317 | ||
2508cc66 | 318 | const git_oid *git_reference_target(const git_reference *ref) |
87d3acf4 VM |
319 | { |
320 | assert(ref); | |
321 | ||
d00d5464 | 322 | if (ref->type != GIT_REF_OID) |
87d3acf4 VM |
323 | return NULL; |
324 | ||
fedd0f9e | 325 | return &ref->target.oid; |
3be933b1 VM |
326 | } |
327 | ||
328 | const git_oid *git_reference_target_peel(const git_reference *ref) | |
329 | { | |
330 | assert(ref); | |
331 | ||
fedd0f9e | 332 | if (ref->type != GIT_REF_OID || git_oid_iszero(&ref->peel)) |
3be933b1 VM |
333 | return NULL; |
334 | ||
fedd0f9e | 335 | return &ref->peel; |
87d3acf4 VM |
336 | } |
337 | ||
2508cc66 | 338 | const char *git_reference_symbolic_target(const git_reference *ref) |
a46ec457 | 339 | { |
d4a0b124 | 340 | assert(ref); |
a46ec457 | 341 | |
d00d5464 | 342 | if (ref->type != GIT_REF_SYMBOLIC) |
a46ec457 MS |
343 | return NULL; |
344 | ||
d4a0b124 | 345 | return ref->target.symbolic; |
a46ec457 MS |
346 | } |
347 | ||
d00d5464 | 348 | static int reference__create( |
d4a0b124 VM |
349 | git_reference **ref_out, |
350 | git_repository *repo, | |
351 | const char *name, | |
d00d5464 ET |
352 | const git_oid *oid, |
353 | const char *symbolic, | |
bba25f39 | 354 | int force, |
355 | const git_signature *signature, | |
9b148098 | 356 | const char *log_message, |
91123661 CMN |
357 | const git_oid *old_id, |
358 | const char *old_target) | |
d5afc039 | 359 | { |
824f755f | 360 | git_refname_t normalized; |
d00d5464 | 361 | git_refdb *refdb; |
d4a0b124 | 362 | git_reference *ref = NULL; |
d00d5464 | 363 | int error = 0; |
4dcd8780 | 364 | |
92f95a17 | 365 | assert(repo && name); |
a57dd3b7 | 366 | assert(symbolic || signature); |
92f95a17 | 367 | |
d00d5464 ET |
368 | if (ref_out) |
369 | *ref_out = NULL; | |
370 | ||
824f755f | 371 | error = reference_normalize_for_repo(normalized, repo, name); |
4e6e2ff2 VM |
372 | if (error < 0) |
373 | return error; | |
374 | ||
375 | error = git_repository_refdb__weakptr(&refdb, repo); | |
376 | if (error < 0) | |
c1281493 | 377 | return error; |
3be933b1 VM |
378 | |
379 | if (oid != NULL) { | |
92f95a17 | 380 | git_odb *odb; |
381 | ||
3be933b1 | 382 | assert(symbolic == NULL); |
92f95a17 | 383 | |
384 | /* Sanity check the reference being created - target must exist. */ | |
385 | if ((error = git_repository_odb__weakptr(&odb, repo)) < 0) | |
386 | return error; | |
387 | ||
388 | if (!git_odb_exists(odb, oid)) { | |
389 | giterr_set(GITERR_REFERENCE, | |
390 | "Target OID for the reference doesn't exist on the repository"); | |
391 | return -1; | |
392 | } | |
393 | ||
68f9d6b2 | 394 | ref = git_reference__alloc(normalized, oid, NULL); |
3be933b1 | 395 | } else { |
824f755f | 396 | git_refname_t normalized_target; |
92f95a17 | 397 | |
824f755f | 398 | if ((error = reference_normalize_for_repo(normalized_target, repo, symbolic)) < 0) |
92f95a17 | 399 | return error; |
400 | ||
68f9d6b2 | 401 | ref = git_reference__alloc_symbolic(normalized, normalized_target); |
3be933b1 | 402 | } |
4dcd8780 | 403 | |
13421eee | 404 | GITERR_CHECK_ALLOC(ref); |
d5afc039 | 405 | |
91123661 | 406 | if ((error = git_refdb_write(refdb, ref, force, signature, log_message, old_id, old_target)) < 0) { |
45d387ac | 407 | git_reference_free(ref); |
d00d5464 | 408 | return error; |
45d387ac | 409 | } |
4dcd8780 | 410 | |
d00d5464 | 411 | if (ref_out == NULL) |
d4a0b124 | 412 | git_reference_free(ref); |
d00d5464 | 413 | else |
d4a0b124 | 414 | *ref_out = ref; |
d5afc039 | 415 | |
45d387ac | 416 | return 0; |
d5afc039 VM |
417 | } |
418 | ||
659cf202 CMN |
419 | int configured_ident(git_signature **out, const git_repository *repo) |
420 | { | |
421 | if (repo->ident_name && repo->ident_email) | |
422 | return git_signature_now(out, repo->ident_name, repo->ident_email); | |
423 | ||
424 | /* if not configured let us fall-through to the next method */ | |
425 | return -1; | |
426 | } | |
427 | ||
ab8d9242 | 428 | int git_reference__log_signature(git_signature **out, git_repository *repo) |
a46ec457 | 429 | { |
a57dd3b7 | 430 | int error; |
0b28217b | 431 | git_signature *who; |
d5afc039 | 432 | |
659cf202 CMN |
433 | if(((error = configured_ident(&who, repo)) < 0) && |
434 | ((error = git_signature_default(&who, repo)) < 0) && | |
0b28217b | 435 | ((error = git_signature_now(&who, "unknown", "unknown")) < 0)) |
c1281493 | 436 | return error; |
4dcd8780 | 437 | |
0b28217b CMN |
438 | *out = who; |
439 | return 0; | |
bba25f39 | 440 | } |
441 | ||
5d96fe88 | 442 | int git_reference_create_matching( |
9b148098 CMN |
443 | git_reference **ref_out, |
444 | git_repository *repo, | |
445 | const char *name, | |
446 | const git_oid *id, | |
447 | int force, | |
15284a2c | 448 | const git_oid *old_id, |
15284a2c | 449 | const char *log_message) |
5d96fe88 | 450 | |
bba25f39 | 451 | { |
0b28217b CMN |
452 | int error; |
453 | git_signature *who = NULL; | |
454 | ||
9b148098 | 455 | assert(id); |
bba25f39 | 456 | |
659cf202 CMN |
457 | if ((error = git_reference__log_signature(&who, repo)) < 0) |
458 | return error; | |
0b28217b CMN |
459 | |
460 | error = reference__create( | |
659cf202 | 461 | ref_out, repo, name, id, NULL, force, who, log_message, old_id, NULL); |
87d3acf4 | 462 | |
0b28217b CMN |
463 | git_signature_free(who); |
464 | return error; | |
d00d5464 | 465 | } |
4dcd8780 | 466 | |
5d96fe88 CMN |
467 | int git_reference_create( |
468 | git_reference **ref_out, | |
469 | git_repository *repo, | |
470 | const char *name, | |
471 | const git_oid *id, | |
472 | int force, | |
5d96fe88 CMN |
473 | const char *log_message) |
474 | { | |
659cf202 | 475 | return git_reference_create_matching(ref_out, repo, name, id, force, NULL, log_message); |
5d96fe88 CMN |
476 | } |
477 | ||
878fb66f | 478 | int git_reference_symbolic_create_matching( |
e5994eb0 AS |
479 | git_reference **ref_out, |
480 | git_repository *repo, | |
481 | const char *name, | |
482 | const char *target, | |
483 | int force, | |
15284a2c | 484 | const char *old_target, |
15284a2c | 485 | const char *log_message) |
e5994eb0 | 486 | { |
0b28217b CMN |
487 | int error; |
488 | git_signature *who = NULL; | |
489 | ||
490 | assert(target); | |
491 | ||
659cf202 CMN |
492 | if ((error = git_reference__log_signature(&who, repo)) < 0) |
493 | return error; | |
e5994eb0 | 494 | |
0b28217b | 495 | error = reference__create( |
659cf202 | 496 | ref_out, repo, name, NULL, target, force, who, log_message, NULL, old_target); |
0b28217b CMN |
497 | |
498 | git_signature_free(who); | |
499 | return error; | |
e5994eb0 AS |
500 | } |
501 | ||
878fb66f CMN |
502 | int git_reference_symbolic_create( |
503 | git_reference **ref_out, | |
504 | git_repository *repo, | |
505 | const char *name, | |
506 | const char *target, | |
507 | int force, | |
878fb66f CMN |
508 | const char *log_message) |
509 | { | |
659cf202 | 510 | return git_reference_symbolic_create_matching(ref_out, repo, name, target, force, NULL, log_message); |
878fb66f CMN |
511 | } |
512 | ||
14ab0e10 | 513 | static int ensure_is_an_updatable_direct_reference(git_reference *ref) |
514 | { | |
515 | if (ref->type == GIT_REF_OID) | |
516 | return 0; | |
9a53df7e | 517 | |
14ab0e10 | 518 | giterr_set(GITERR_REFERENCE, "Cannot set OID on symbolic reference"); |
519 | return -1; | |
d00d5464 | 520 | } |
9462c471 | 521 | |
5d96fe88 | 522 | int git_reference_set_target( |
14ab0e10 | 523 | git_reference **out, |
524 | git_reference *ref, | |
525 | const git_oid *id, | |
5d96fe88 | 526 | const char *log_message) |
14ab0e10 | 527 | { |
528 | int error; | |
9b148098 | 529 | git_repository *repo; |
14ab0e10 | 530 | |
531 | assert(out && ref && id); | |
14ab0e10 | 532 | |
9b148098 CMN |
533 | repo = ref->db->repo; |
534 | ||
14ab0e10 | 535 | if ((error = ensure_is_an_updatable_direct_reference(ref)) < 0) |
536 | return error; | |
537 | ||
659cf202 | 538 | return git_reference_create_matching(out, repo, ref->name, id, 1, &ref->target.oid, log_message); |
14ab0e10 | 539 | } |
540 | ||
ca84e058 | 541 | static int ensure_is_an_updatable_symbolic_reference(git_reference *ref) |
542 | { | |
543 | if (ref->type == GIT_REF_SYMBOLIC) | |
544 | return 0; | |
545 | ||
546 | giterr_set(GITERR_REFERENCE, "Cannot set symbolic target on a direct reference"); | |
547 | return -1; | |
548 | } | |
549 | ||
d00d5464 ET |
550 | int git_reference_symbolic_set_target( |
551 | git_reference **out, | |
552 | git_reference *ref, | |
0b28217b | 553 | const char *target, |
0b28217b | 554 | const char *log_message) |
87d3acf4 | 555 | { |
ca84e058 | 556 | int error; |
557 | ||
d00d5464 | 558 | assert(out && ref && target); |
4dcd8780 | 559 | |
ca84e058 | 560 | if ((error = ensure_is_an_updatable_symbolic_reference(ref)) < 0) |
561 | return error; | |
4dcd8780 | 562 | |
878fb66f | 563 | return git_reference_symbolic_create_matching( |
659cf202 | 564 | out, ref->db->repo, ref->name, target, 1, ref->target.symbolic, log_message); |
87d3acf4 VM |
565 | } |
566 | ||
a57dd3b7 CMN |
567 | static int reference__rename(git_reference **out, git_reference *ref, const char *new_name, int force, |
568 | const git_signature *signature, const char *message) | |
7376ad99 | 569 | { |
824f755f | 570 | git_refname_t normalized; |
f3cc7834 | 571 | bool should_head_be_updated = false; |
d00d5464 | 572 | int error = 0; |
a57dd3b7 CMN |
573 | |
574 | assert(ref && new_name && signature); | |
4dcd8780 | 575 | |
68f9d6b2 | 576 | if ((error = reference_normalize_for_repo( |
824f755f | 577 | normalized, git_reference_owner(ref), new_name)) < 0) |
d00d5464 | 578 | return error; |
7376ad99 | 579 | |
a57dd3b7 | 580 | |
d00d5464 | 581 | /* Check if we have to update HEAD. */ |
10c06114 | 582 | if ((error = git_branch_is_head(ref)) < 0) |
4e6e2ff2 | 583 | return error; |
d00d5464 | 584 | |
10c06114 AS |
585 | should_head_be_updated = (error > 0); |
586 | ||
68f9d6b2 | 587 | if ((error = git_refdb_rename(out, ref->db, ref->name, normalized, force, signature, message)) < 0) |
4e6e2ff2 | 588 | return error; |
4dcd8780 | 589 | |
96869a4e | 590 | /* Update HEAD it was pointing to the reference being renamed */ |
4e6e2ff2 | 591 | if (should_head_be_updated && |
4e498646 | 592 | (error = git_repository_set_head(ref->db->repo, normalized)) < 0) { |
d00d5464 | 593 | giterr_set(GITERR_REFERENCE, "Failed to update HEAD after renaming reference"); |
4e6e2ff2 | 594 | return error; |
d4a0b124 VM |
595 | } |
596 | ||
a57dd3b7 CMN |
597 | return 0; |
598 | } | |
599 | ||
7376ad99 | 600 | |
a57dd3b7 CMN |
601 | int git_reference_rename( |
602 | git_reference **out, | |
603 | git_reference *ref, | |
604 | const char *new_name, | |
ccf6ce5c | 605 | int force, |
ccf6ce5c | 606 | const char *log_message) |
a57dd3b7 | 607 | { |
659cf202 | 608 | git_signature *who; |
a57dd3b7 | 609 | int error; |
7376ad99 | 610 | |
659cf202 | 611 | if ((error = git_reference__log_signature(&who, ref->db->repo)) < 0) |
4e6e2ff2 | 612 | return error; |
64093ce5 | 613 | |
ccf6ce5c | 614 | error = reference__rename(out, ref, new_name, force, who, log_message); |
659cf202 | 615 | git_signature_free(who); |
a57dd3b7 CMN |
616 | |
617 | return error; | |
618 | } | |
619 | ||
2508cc66 | 620 | int git_reference_resolve(git_reference **ref_out, const git_reference *ref) |
87d3acf4 | 621 | { |
3be933b1 VM |
622 | switch (git_reference_type(ref)) { |
623 | case GIT_REF_OID: | |
d00d5464 | 624 | return git_reference_lookup(ref_out, ref->db->repo, ref->name); |
4dcd8780 | 625 | |
3be933b1 VM |
626 | case GIT_REF_SYMBOLIC: |
627 | return git_reference_lookup_resolved(ref_out, ref->db->repo, ref->target.symbolic, -1); | |
628 | ||
629 | default: | |
630 | giterr_set(GITERR_REFERENCE, "Invalid reference"); | |
631 | return -1; | |
632 | } | |
87d3acf4 VM |
633 | } |
634 | ||
d4a0b124 VM |
635 | int git_reference_foreach( |
636 | git_repository *repo, | |
eecc8050 | 637 | git_reference_foreach_cb callback, |
1a481123 | 638 | void *payload) |
00571828 | 639 | { |
95727245 | 640 | git_reference_iterator *iter; |
ec24e542 | 641 | git_reference *ref; |
95727245 CMN |
642 | int error; |
643 | ||
dab89f9b RB |
644 | if ((error = git_reference_iterator_new(&iter, repo)) < 0) |
645 | return error; | |
00571828 | 646 | |
f10d7a36 RB |
647 | while (!(error = git_reference_next(&ref, iter))) { |
648 | if ((error = callback(ref, payload)) != 0) { | |
26c1cb91 | 649 | giterr_set_after_callback(error); |
f10d7a36 RB |
650 | break; |
651 | } | |
652 | } | |
ec24e542 VM |
653 | |
654 | if (error == GIT_ITEROVER) | |
655 | error = 0; | |
656 | ||
ec24e542 VM |
657 | git_reference_iterator_free(iter); |
658 | return error; | |
659 | } | |
660 | ||
661 | int git_reference_foreach_name( | |
662 | git_repository *repo, | |
663 | git_reference_foreach_name_cb callback, | |
664 | void *payload) | |
665 | { | |
666 | git_reference_iterator *iter; | |
667 | const char *refname; | |
95727245 CMN |
668 | int error; |
669 | ||
dab89f9b RB |
670 | if ((error = git_reference_iterator_new(&iter, repo)) < 0) |
671 | return error; | |
00571828 | 672 | |
f10d7a36 RB |
673 | while (!(error = git_reference_next_name(&refname, iter))) { |
674 | if ((error = callback(refname, payload)) != 0) { | |
26c1cb91 | 675 | giterr_set_after_callback(error); |
f10d7a36 RB |
676 | break; |
677 | } | |
678 | } | |
ec24e542 VM |
679 | |
680 | if (error == GIT_ITEROVER) | |
681 | error = 0; | |
682 | ||
ec24e542 VM |
683 | git_reference_iterator_free(iter); |
684 | return error; | |
685 | } | |
686 | ||
687 | int git_reference_foreach_glob( | |
688 | git_repository *repo, | |
689 | const char *glob, | |
690 | git_reference_foreach_name_cb callback, | |
691 | void *payload) | |
692 | { | |
693 | git_reference_iterator *iter; | |
694 | const char *refname; | |
695 | int error; | |
696 | ||
dab89f9b RB |
697 | if ((error = git_reference_iterator_glob_new(&iter, repo, glob)) < 0) |
698 | return error; | |
ec24e542 | 699 | |
f10d7a36 RB |
700 | while (!(error = git_reference_next_name(&refname, iter))) { |
701 | if ((error = callback(refname, payload)) != 0) { | |
26c1cb91 | 702 | giterr_set_after_callback(error); |
f10d7a36 RB |
703 | break; |
704 | } | |
705 | } | |
95727245 CMN |
706 | |
707 | if (error == GIT_ITEROVER) | |
708 | error = 0; | |
709 | ||
95727245 CMN |
710 | git_reference_iterator_free(iter); |
711 | return error; | |
09e8de0f VM |
712 | } |
713 | ||
4def7035 CMN |
714 | int git_reference_iterator_new(git_reference_iterator **out, git_repository *repo) |
715 | { | |
716 | git_refdb *refdb; | |
717 | ||
718 | if (git_repository_refdb__weakptr(&refdb, repo) < 0) | |
719 | return -1; | |
720 | ||
ec24e542 | 721 | return git_refdb_iterator(out, refdb, NULL); |
4def7035 CMN |
722 | } |
723 | ||
ec24e542 VM |
724 | int git_reference_iterator_glob_new( |
725 | git_reference_iterator **out, git_repository *repo, const char *glob) | |
00571828 | 726 | { |
d00d5464 | 727 | git_refdb *refdb; |
00571828 | 728 | |
c58cac12 CMN |
729 | if (git_repository_refdb__weakptr(&refdb, repo) < 0) |
730 | return -1; | |
731 | ||
ec24e542 | 732 | return git_refdb_iterator(out, refdb, glob); |
c58cac12 CMN |
733 | } |
734 | ||
56960b83 | 735 | int git_reference_next(git_reference **out, git_reference_iterator *iter) |
4def7035 | 736 | { |
ec24e542 VM |
737 | return git_refdb_iterator_next(out, iter); |
738 | } | |
739 | ||
740 | int git_reference_next_name(const char **out, git_reference_iterator *iter) | |
741 | { | |
742 | return git_refdb_iterator_next_name(out, iter); | |
4def7035 CMN |
743 | } |
744 | ||
745 | void git_reference_iterator_free(git_reference_iterator *iter) | |
746 | { | |
2ad45213 BR |
747 | if (iter == NULL) |
748 | return; | |
749 | ||
4def7035 | 750 | git_refdb_iterator_free(iter); |
09e8de0f VM |
751 | } |
752 | ||
d568d585 | 753 | static int cb__reflist_add(const char *ref, void *data) |
09e8de0f | 754 | { |
25e0b157 RB |
755 | char *name = git__strdup(ref); |
756 | GITERR_CHECK_ALLOC(name); | |
757 | return git_vector_insert((git_vector *)data, name); | |
09e8de0f VM |
758 | } |
759 | ||
4fbd1c00 | 760 | int git_reference_list( |
d4a0b124 | 761 | git_strarray *array, |
2b562c3a | 762 | git_repository *repo) |
09e8de0f | 763 | { |
09e8de0f VM |
764 | git_vector ref_list; |
765 | ||
766 | assert(array && repo); | |
767 | ||
768 | array->strings = NULL; | |
769 | array->count = 0; | |
770 | ||
0d0fa7c3 | 771 | if (git_vector_init(&ref_list, 8, NULL) < 0) |
45d387ac | 772 | return -1; |
7ad96e51 | 773 | |
ec24e542 | 774 | if (git_reference_foreach_name( |
2b562c3a | 775 | repo, &cb__reflist_add, (void *)&ref_list) < 0) { |
09e8de0f | 776 | git_vector_free(&ref_list); |
45d387ac | 777 | return -1; |
7ad96e51 VM |
778 | } |
779 | ||
25e0b157 RB |
780 | array->strings = (char **)git_vector_detach(&array->count, NULL, &ref_list); |
781 | ||
1a481123 | 782 | return 0; |
00571828 | 783 | } |
87d3acf4 | 784 | |
d4a0b124 | 785 | static int is_valid_ref_char(char ch) |
aa2120e9 | 786 | { |
50a8fd03 | 787 | if ((unsigned) ch <= ' ') |
d4a0b124 | 788 | return 0; |
aa2120e9 | 789 | |
790 | switch (ch) { | |
791 | case '~': | |
792 | case '^': | |
793 | case ':': | |
794 | case '\\': | |
795 | case '?': | |
796 | case '[': | |
e1be1028 | 797 | case '*': |
d4a0b124 | 798 | return 0; |
aa2120e9 | 799 | default: |
d4a0b124 | 800 | return 1; |
aa2120e9 | 801 | } |
802 | } | |
803 | ||
c030ada7 | 804 | static int ensure_segment_validity(const char *name) |
aa2120e9 | 805 | { |
c030ada7 | 806 | const char *current = name; |
807 | char prev = '\0'; | |
0d1b094b RB |
808 | const int lock_len = (int)strlen(GIT_FILELOCK_EXTENSION); |
809 | int segment_len; | |
aa2120e9 | 810 | |
c030ada7 | 811 | if (*current == '.') |
812 | return -1; /* Refname starts with "." */ | |
aa2120e9 | 813 | |
c030ada7 | 814 | for (current = name; ; current++) { |
815 | if (*current == '\0' || *current == '/') | |
816 | break; | |
2e0c8816 | 817 | |
c030ada7 | 818 | if (!is_valid_ref_char(*current)) |
819 | return -1; /* Illegal character in refname */ | |
aa2120e9 | 820 | |
c030ada7 | 821 | if (prev == '.' && *current == '.') |
822 | return -1; /* Refname contains ".." */ | |
3101a3e5 | 823 | |
c030ada7 | 824 | if (prev == '@' && *current == '{') |
825 | return -1; /* Refname contains "@{" */ | |
aa2120e9 | 826 | |
c030ada7 | 827 | prev = *current; |
828 | } | |
aa2120e9 | 829 | |
0d1b094b RB |
830 | segment_len = (int)(current - name); |
831 | ||
4d811c3b | 832 | /* A refname component can not end with ".lock" */ |
0d1b094b | 833 | if (segment_len >= lock_len && |
2bca5b67 | 834 | !memcmp(current - lock_len, GIT_FILELOCK_EXTENSION, lock_len)) |
4d811c3b | 835 | return -1; |
836 | ||
0d1b094b | 837 | return segment_len; |
c030ada7 | 838 | } |
aa2120e9 | 839 | |
7c411fd9 | 840 | static bool is_all_caps_and_underscore(const char *name, size_t len) |
77e06d7e | 841 | { |
7c411fd9 | 842 | size_t i; |
77e06d7e | 843 | char c; |
844 | ||
845 | assert(name && len > 0); | |
846 | ||
847 | for (i = 0; i < len; i++) | |
848 | { | |
849 | c = name[i]; | |
850 | if ((c < 'A' || c > 'Z') && c != '_') | |
851 | return false; | |
852 | } | |
853 | ||
854 | if (*name == '_' || name[len - 1] == '_') | |
855 | return false; | |
856 | ||
857 | return true; | |
858 | } | |
859 | ||
92dac975 | 860 | /* Inspired from https://github.com/git/git/blob/f06d47e7e0d9db709ee204ed13a8a7486149f494/refs.c#L36-100 */ |
c030ada7 | 861 | int git_reference__normalize_name( |
862 | git_buf *buf, | |
863 | const char *name, | |
864 | unsigned int flags) | |
865 | { | |
c030ada7 | 866 | char *current; |
80d9d1df | 867 | int segment_len, segments_count = 0, error = GIT_EINVALIDSPEC; |
77e06d7e | 868 | unsigned int process_flags; |
869 | bool normalize = (buf != NULL); | |
0bfa7323 VM |
870 | |
871 | #ifdef GIT_USE_ICONV | |
92dac975 | 872 | git_path_iconv_t ic = GIT_PATH_ICONV_INIT; |
0bfa7323 | 873 | #endif |
92dac975 | 874 | |
77e06d7e | 875 | assert(name); |
c030ada7 | 876 | |
77e06d7e | 877 | process_flags = flags; |
c030ada7 | 878 | current = (char *)name; |
879 | ||
bb45c57f CMN |
880 | if (*current == '/') |
881 | goto cleanup; | |
882 | ||
77e06d7e | 883 | if (normalize) |
884 | git_buf_clear(buf); | |
c030ada7 | 885 | |
0bfa7323 | 886 | #ifdef GIT_USE_ICONV |
92dac975 RB |
887 | if ((flags & GIT_REF_FORMAT__PRECOMPOSE_UNICODE) != 0) { |
888 | size_t namelen = strlen(current); | |
889 | if ((error = git_path_iconv_init_precompose(&ic)) < 0 || | |
890 | (error = git_path_iconv(&ic, ¤t, &namelen)) < 0) | |
891 | goto cleanup; | |
74353137 | 892 | error = GIT_EINVALIDSPEC; |
92dac975 | 893 | } |
0bfa7323 | 894 | #endif |
92dac975 | 895 | |
c030ada7 | 896 | while (true) { |
897 | segment_len = ensure_segment_validity(current); | |
898 | if (segment_len < 0) { | |
77e06d7e | 899 | if ((process_flags & GIT_REF_FORMAT_REFSPEC_PATTERN) && |
c030ada7 | 900 | current[0] == '*' && |
901 | (current[1] == '\0' || current[1] == '/')) { | |
902 | /* Accept one wildcard as a full refname component. */ | |
77e06d7e | 903 | process_flags &= ~GIT_REF_FORMAT_REFSPEC_PATTERN; |
c030ada7 | 904 | segment_len = 1; |
905 | } else | |
906 | goto cleanup; | |
907 | } | |
aa2120e9 | 908 | |
c030ada7 | 909 | if (segment_len > 0) { |
77e06d7e | 910 | if (normalize) { |
7c411fd9 | 911 | size_t cur_len = git_buf_len(buf); |
aa2120e9 | 912 | |
77e06d7e | 913 | git_buf_joinpath(buf, git_buf_cstr(buf), current); |
7c411fd9 | 914 | git_buf_truncate(buf, |
77e06d7e | 915 | cur_len + segment_len + (segments_count ? 1 : 0)); |
aa2120e9 | 916 | |
80d9d1df | 917 | if (git_buf_oom(buf)) { |
918 | error = -1; | |
77e06d7e | 919 | goto cleanup; |
80d9d1df | 920 | } |
77e06d7e | 921 | } |
aa2120e9 | 922 | |
77e06d7e | 923 | segments_count++; |
0844ed06 | 924 | } |
2e0c8816 | 925 | |
2bca5b67 | 926 | /* No empty segment is allowed when not normalizing */ |
927 | if (segment_len == 0 && !normalize) | |
e5ef0f18 | 928 | goto cleanup; |
0d1b094b | 929 | |
c030ada7 | 930 | if (current[segment_len] == '\0') |
931 | break; | |
aa2120e9 | 932 | |
c030ada7 | 933 | current += segment_len + 1; |
2e0c8816 | 934 | } |
3101a3e5 | 935 | |
c030ada7 | 936 | /* A refname can not be empty */ |
77e06d7e | 937 | if (segment_len == 0 && segments_count == 0) |
c030ada7 | 938 | goto cleanup; |
939 | ||
940 | /* A refname can not end with "." */ | |
941 | if (current[segment_len - 1] == '.') | |
942 | goto cleanup; | |
943 | ||
944 | /* A refname can not end with "/" */ | |
945 | if (current[segment_len - 1] == '/') | |
946 | goto cleanup; | |
947 | ||
77e06d7e | 948 | if ((segments_count == 1 ) && !(flags & GIT_REF_FORMAT_ALLOW_ONELEVEL)) |
949 | goto cleanup; | |
950 | ||
951 | if ((segments_count == 1 ) && | |
528a4e24 | 952 | !(flags & GIT_REF_FORMAT_REFSPEC_SHORTHAND) && |
7c411fd9 | 953 | !(is_all_caps_and_underscore(name, (size_t)segment_len) || |
77e06d7e | 954 | ((flags & GIT_REF_FORMAT_REFSPEC_PATTERN) && !strcmp("*", name)))) |
955 | goto cleanup; | |
956 | ||
957 | if ((segments_count > 1) | |
958 | && (is_all_caps_and_underscore(name, strchr(name, '/') - name))) | |
959 | goto cleanup; | |
aa2120e9 | 960 | |
c030ada7 | 961 | error = 0; |
aa2120e9 | 962 | |
c030ada7 | 963 | cleanup: |
80d9d1df | 964 | if (error == GIT_EINVALIDSPEC) |
c030ada7 | 965 | giterr_set( |
966 | GITERR_REFERENCE, | |
967 | "The given reference name '%s' is not valid", name); | |
aa2120e9 | 968 | |
3865f7f6 RB |
969 | if (error && normalize) |
970 | git_buf_free(buf); | |
971 | ||
0bfa7323 | 972 | #ifdef GIT_USE_ICONV |
92dac975 | 973 | git_path_iconv_clear(&ic); |
0bfa7323 | 974 | #endif |
92dac975 | 975 | |
c030ada7 | 976 | return error; |
977 | } | |
1a481123 | 978 | |
c030ada7 | 979 | int git_reference_normalize_name( |
980 | char *buffer_out, | |
981 | size_t buffer_size, | |
982 | const char *name, | |
983 | unsigned int flags) | |
984 | { | |
985 | git_buf buf = GIT_BUF_INIT; | |
986 | int error; | |
987 | ||
988 | if ((error = git_reference__normalize_name(&buf, name, flags)) < 0) | |
989 | goto cleanup; | |
990 | ||
991 | if (git_buf_len(&buf) > buffer_size - 1) { | |
992 | giterr_set( | |
2e0c8816 | 993 | GITERR_REFERENCE, |
c030ada7 | 994 | "The provided buffer is too short to hold the normalization of '%s'", name); |
995 | error = GIT_EBUFS; | |
996 | goto cleanup; | |
997 | } | |
998 | ||
999 | git_buf_copy_cstr(buffer_out, buffer_size, &buf); | |
1000 | ||
1001 | error = 0; | |
1002 | ||
1003 | cleanup: | |
1004 | git_buf_free(&buf); | |
1005 | return error; | |
aa2120e9 | 1006 | } |
2f8a8ab2 | 1007 | |
f201d613 RB |
1008 | #define GIT_REF_TYPEMASK (GIT_REF_OID | GIT_REF_SYMBOLIC) |
1009 | ||
3b4ba278 JG |
1010 | int git_reference_cmp( |
1011 | const git_reference *ref1, | |
1012 | const git_reference *ref2) | |
f201d613 | 1013 | { |
3be933b1 | 1014 | git_ref_t type1, type2; |
f201d613 RB |
1015 | assert(ref1 && ref2); |
1016 | ||
3be933b1 VM |
1017 | type1 = git_reference_type(ref1); |
1018 | type2 = git_reference_type(ref2); | |
1019 | ||
f201d613 | 1020 | /* let's put symbolic refs before OIDs */ |
3be933b1 VM |
1021 | if (type1 != type2) |
1022 | return (type1 == GIT_REF_SYMBOLIC) ? -1 : 1; | |
f201d613 | 1023 | |
3be933b1 | 1024 | if (type1 == GIT_REF_SYMBOLIC) |
f201d613 RB |
1025 | return strcmp(ref1->target.symbolic, ref2->target.symbolic); |
1026 | ||
b7f167da | 1027 | return git_oid__cmp(&ref1->target.oid, &ref2->target.oid); |
f201d613 RB |
1028 | } |
1029 | ||
659cf202 CMN |
1030 | /** |
1031 | * Get the end of a chain of references. If the final one is not | |
1032 | * found, we return the reference just before that. | |
1033 | */ | |
1034 | static int get_terminal(git_reference **out, git_repository *repo, const char *ref_name, int nesting) | |
edebceff | 1035 | { |
1036 | git_reference *ref; | |
d00d5464 | 1037 | int error = 0; |
edebceff | 1038 | |
41e93563 RB |
1039 | if (nesting > MAX_NESTING_LEVEL) { |
1040 | giterr_set(GITERR_REFERENCE, "Reference chain too deep (%d)", nesting); | |
d00d5464 | 1041 | return GIT_ENOTFOUND; |
41e93563 | 1042 | } |
4dcd8780 | 1043 | |
659cf202 CMN |
1044 | /* set to NULL to let the caller know that they're at the end of the chain */ |
1045 | if ((error = git_reference_lookup(&ref, repo, ref_name)) < 0) { | |
1046 | *out = NULL; | |
d00d5464 | 1047 | return error; |
659cf202 | 1048 | } |
4dcd8780 | 1049 | |
659cf202 CMN |
1050 | if (git_reference_type(ref) == GIT_REF_OID) { |
1051 | *out = ref; | |
1052 | error = 0; | |
d00d5464 | 1053 | } else { |
659cf202 CMN |
1054 | error = get_terminal(out, repo, git_reference_symbolic_target(ref), nesting + 1); |
1055 | if (error == GIT_ENOTFOUND) { | |
1056 | if (!*out) /* set by the error case in lookup above */ | |
1057 | *out = ref; | |
1058 | } else { | |
1059 | git_reference_free(ref); | |
1060 | } | |
edebceff | 1061 | } |
4dcd8780 | 1062 | |
d00d5464 | 1063 | return error; |
edebceff | 1064 | } |
527ed554 | 1065 | |
d00d5464 ET |
1066 | /* |
1067 | * Starting with the reference given by `ref_name`, follows symbolic | |
1068 | * references until a direct reference is found and updated the OID | |
1069 | * on that direct reference to `oid`. | |
1070 | */ | |
1071 | int git_reference__update_terminal( | |
1072 | git_repository *repo, | |
1073 | const char *ref_name, | |
0b28217b | 1074 | const git_oid *oid, |
659cf202 | 1075 | const git_signature *sig, |
0b28217b | 1076 | const char *log_message) |
527ed554 | 1077 | { |
fe21d708 | 1078 | git_reference *ref = NULL, *ref2 = NULL; |
659cf202 CMN |
1079 | git_signature *who = NULL; |
1080 | const git_signature *to_use; | |
1081 | int error = 0; | |
1082 | ||
1083 | if (!sig && (error = git_reference__log_signature(&who, repo)) < 0) | |
1084 | return error; | |
1085 | ||
1086 | to_use = sig ? sig : who; | |
1087 | error = get_terminal(&ref, repo, ref_name, 0); | |
1088 | ||
1089 | /* found a dangling symref */ | |
1090 | if (error == GIT_ENOTFOUND && ref) { | |
1091 | assert(git_reference_type(ref) == GIT_REF_SYMBOLIC); | |
1092 | giterr_clear(); | |
fe21d708 | 1093 | error = reference__create(&ref2, repo, ref->target.symbolic, oid, NULL, 0, to_use, |
659cf202 CMN |
1094 | log_message, NULL, NULL); |
1095 | } else if (error == GIT_ENOTFOUND) { | |
1096 | giterr_clear(); | |
fe21d708 | 1097 | error = reference__create(&ref2, repo, ref_name, oid, NULL, 0, to_use, |
659cf202 CMN |
1098 | log_message, NULL, NULL); |
1099 | } else if (error == 0) { | |
1100 | assert(git_reference_type(ref) == GIT_REF_OID); | |
fe21d708 | 1101 | error = reference__create(&ref2, repo, ref->name, oid, NULL, 1, to_use, |
659cf202 CMN |
1102 | log_message, &ref->target.oid, NULL); |
1103 | } | |
1104 | ||
fe21d708 CMN |
1105 | git_reference_free(ref2); |
1106 | git_reference_free(ref); | |
659cf202 CMN |
1107 | git_signature_free(who); |
1108 | return error; | |
527ed554 | 1109 | } |
1110 | ||
a612a25f ET |
1111 | int git_reference__update_for_commit( |
1112 | git_repository *repo, | |
1113 | git_reference *ref, | |
1114 | const char *ref_name, | |
1115 | const git_oid *id, | |
a612a25f ET |
1116 | const char *operation) |
1117 | { | |
1118 | git_reference *ref_new = NULL; | |
1119 | git_commit *commit = NULL; | |
1120 | git_buf reflog_msg = GIT_BUF_INIT; | |
659cf202 | 1121 | const git_signature *who; |
a612a25f ET |
1122 | int error; |
1123 | ||
1124 | if ((error = git_commit_lookup(&commit, repo, id)) < 0 || | |
1125 | (error = git_buf_printf(&reflog_msg, "%s%s: %s", | |
1126 | operation ? operation : "commit", | |
1127 | git_commit_parentcount(commit) == 0 ? " (initial)" : "", | |
1128 | git_commit_summary(commit))) < 0) | |
1129 | goto done; | |
1130 | ||
659cf202 CMN |
1131 | who = git_commit_committer(commit); |
1132 | ||
1133 | if (ref) { | |
1134 | if ((error = ensure_is_an_updatable_direct_reference(ref)) < 0) | |
1135 | return error; | |
1136 | ||
1137 | error = reference__create(&ref_new, repo, ref->name, id, NULL, 1, who, | |
1138 | git_buf_cstr(&reflog_msg), &ref->target.oid, NULL); | |
1139 | } | |
a612a25f ET |
1140 | else |
1141 | error = git_reference__update_terminal( | |
659cf202 | 1142 | repo, ref_name, id, who, git_buf_cstr(&reflog_msg)); |
a612a25f ET |
1143 | |
1144 | done: | |
1145 | git_reference_free(ref_new); | |
1146 | git_buf_free(&reflog_msg); | |
1147 | git_commit_free(commit); | |
1148 | return error; | |
1149 | } | |
1150 | ||
f2105129 | 1151 | int git_reference_has_log(git_repository *repo, const char *refname) |
75261421 | 1152 | { |
f2105129 CMN |
1153 | int error; |
1154 | git_refdb *refdb; | |
75261421 | 1155 | |
f2105129 | 1156 | assert(repo && refname); |
75261421 | 1157 | |
f2105129 CMN |
1158 | if ((error = git_repository_refdb__weakptr(&refdb, repo)) < 0) |
1159 | return error; | |
75261421 | 1160 | |
f2105129 | 1161 | return git_refdb_has_log(refdb, refname); |
75261421 | 1162 | } |
84f18e35 | 1163 | |
8d5ec910 CMN |
1164 | int git_reference_ensure_log(git_repository *repo, const char *refname) |
1165 | { | |
1166 | int error; | |
1167 | git_refdb *refdb; | |
1168 | ||
1169 | assert(repo && refname); | |
1170 | ||
1171 | if ((error = git_repository_refdb__weakptr(&refdb, repo)) < 0) | |
1172 | return error; | |
75261421 | 1173 | |
8d5ec910 | 1174 | return git_refdb_ensure_log(refdb, refname); |
75261421 | 1175 | } |
84f18e35 | 1176 | |
bf031581 | 1177 | int git_reference__is_branch(const char *ref_name) |
1178 | { | |
1179 | return git__prefixcmp(ref_name, GIT_REFS_HEADS_DIR) == 0; | |
1180 | } | |
1181 | ||
853b1407 | 1182 | int git_reference_is_branch(const git_reference *ref) |
88bcd515 | 1183 | { |
1184 | assert(ref); | |
bf031581 | 1185 | return git_reference__is_branch(ref->name); |
88bcd515 | 1186 | } |
1c947daa | 1187 | |
c1b5e8c4 | 1188 | int git_reference__is_remote(const char *ref_name) |
1189 | { | |
1190 | return git__prefixcmp(ref_name, GIT_REFS_REMOTES_DIR) == 0; | |
1191 | } | |
1192 | ||
3b4ba278 | 1193 | int git_reference_is_remote(const git_reference *ref) |
1c947daa VM |
1194 | { |
1195 | assert(ref); | |
c1b5e8c4 | 1196 | return git_reference__is_remote(ref->name); |
1c947daa | 1197 | } |
31665948 | 1198 | |
504850cd NV |
1199 | int git_reference__is_tag(const char *ref_name) |
1200 | { | |
1201 | return git__prefixcmp(ref_name, GIT_REFS_TAGS_DIR) == 0; | |
1202 | } | |
1203 | ||
3b4ba278 | 1204 | int git_reference_is_tag(const git_reference *ref) |
504850cd NV |
1205 | { |
1206 | assert(ref); | |
1207 | return git_reference__is_tag(ref->name); | |
1208 | } | |
1209 | ||
50ad7cc2 AS |
1210 | int git_reference__is_note(const char *ref_name) |
1211 | { | |
1212 | return git__prefixcmp(ref_name, GIT_REFS_NOTES_DIR) == 0; | |
1213 | } | |
1214 | ||
3b4ba278 | 1215 | int git_reference_is_note(const git_reference *ref) |
50ad7cc2 AS |
1216 | { |
1217 | assert(ref); | |
1218 | return git_reference__is_note(ref->name); | |
1219 | } | |
1220 | ||
31665948 | 1221 | static int peel_error(int error, git_reference *ref, const char* msg) |
1222 | { | |
1223 | giterr_set( | |
1224 | GITERR_INVALID, | |
1225 | "The reference '%s' cannot be peeled - %s", git_reference_name(ref), msg); | |
1226 | return error; | |
1227 | } | |
1228 | ||
31665948 | 1229 | int git_reference_peel( |
92dac975 RB |
1230 | git_object **peeled, |
1231 | git_reference *ref, | |
1232 | git_otype target_type) | |
31665948 | 1233 | { |
1234 | git_reference *resolved = NULL; | |
1235 | git_object *target = NULL; | |
1236 | int error; | |
1237 | ||
1238 | assert(ref); | |
1239 | ||
3be933b1 VM |
1240 | if (ref->type == GIT_REF_OID) { |
1241 | resolved = ref; | |
1242 | } else { | |
1243 | if ((error = git_reference_resolve(&resolved, ref)) < 0) | |
1244 | return peel_error(error, ref, "Cannot resolve reference"); | |
1245 | } | |
1246 | ||
fedd0f9e | 1247 | if (!git_oid_iszero(&resolved->peel)) { |
3be933b1 | 1248 | error = git_object_lookup(&target, |
fedd0f9e | 1249 | git_reference_owner(ref), &resolved->peel, GIT_OBJ_ANY); |
3be933b1 VM |
1250 | } else { |
1251 | error = git_object_lookup(&target, | |
fedd0f9e | 1252 | git_reference_owner(ref), &resolved->target.oid, GIT_OBJ_ANY); |
3be933b1 | 1253 | } |
31665948 | 1254 | |
3be933b1 | 1255 | if (error < 0) { |
31665948 | 1256 | peel_error(error, ref, "Cannot retrieve reference target"); |
1257 | goto cleanup; | |
1258 | } | |
b90500f0 | 1259 | |
31665948 | 1260 | if (target_type == GIT_OBJ_ANY && git_object_type(target) != GIT_OBJ_TAG) |
575a54db | 1261 | error = git_object_dup(peeled, target); |
b90500f0 | 1262 | else |
31665948 | 1263 | error = git_object_peel(peeled, target, target_type); |
1264 | ||
1265 | cleanup: | |
1266 | git_object_free(target); | |
3be933b1 VM |
1267 | |
1268 | if (resolved != ref) | |
1269 | git_reference_free(resolved); | |
1270 | ||
31665948 | 1271 | return error; |
1272 | } | |
77e06d7e | 1273 | |
92dac975 | 1274 | int git_reference__is_valid_name(const char *refname, unsigned int flags) |
0adfa20a | 1275 | { |
92dac975 RB |
1276 | if (git_reference__normalize_name(NULL, refname, flags) < 0) { |
1277 | giterr_clear(); | |
1278 | return false; | |
1279 | } | |
83458bb7 | 1280 | |
92dac975 | 1281 | return true; |
0adfa20a | 1282 | } |
1283 | ||
92dac975 | 1284 | int git_reference_is_valid_name(const char *refname) |
77e06d7e | 1285 | { |
92dac975 | 1286 | return git_reference__is_valid_name(refname, GIT_REF_FORMAT_ALLOW_ONELEVEL); |
77e06d7e | 1287 | } |
4f2eb2b7 | 1288 | |
4e498646 | 1289 | const char *git_reference__shorthand(const char *name) |
4f2eb2b7 | 1290 | { |
4f2eb2b7 CMN |
1291 | if (!git__prefixcmp(name, GIT_REFS_HEADS_DIR)) |
1292 | return name + strlen(GIT_REFS_HEADS_DIR); | |
1293 | else if (!git__prefixcmp(name, GIT_REFS_TAGS_DIR)) | |
1294 | return name + strlen(GIT_REFS_TAGS_DIR); | |
1295 | else if (!git__prefixcmp(name, GIT_REFS_REMOTES_DIR)) | |
1296 | return name + strlen(GIT_REFS_REMOTES_DIR); | |
1297 | else if (!git__prefixcmp(name, GIT_REFS_DIR)) | |
1298 | return name + strlen(GIT_REFS_DIR); | |
1299 | ||
1300 | /* No shorthands are avaiable, so just return the name */ | |
1301 | return name; | |
1302 | } | |
4e498646 CMN |
1303 | |
1304 | const char *git_reference_shorthand(const git_reference *ref) | |
1305 | { | |
1306 | return git_reference__shorthand(ref->name); | |
1307 | } |