2 5d56da81 2019-01-13 stsp * Copyright (c) 2018, 2019 Stefan Sperling <stsp@openbsd.org>
4 5261c201 2018-04-01 stsp * Permission to use, copy, modify, and distribute this software for any
5 5261c201 2018-04-01 stsp * purpose with or without fee is hereby granted, provided that the above
6 5261c201 2018-04-01 stsp * copyright notice and this permission notice appear in all copies.
8 5261c201 2018-04-01 stsp * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 5261c201 2018-04-01 stsp * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 5261c201 2018-04-01 stsp * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 5261c201 2018-04-01 stsp * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 5261c201 2018-04-01 stsp * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 5261c201 2018-04-01 stsp * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 5261c201 2018-04-01 stsp * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 5261c201 2018-04-01 stsp #include <sys/types.h>
18 8b925c6c 2022-07-16 thomas #include <sys/queue.h>
19 9e672c74 2019-03-11 stsp #include <sys/stat.h>
21 0fd469ce 2019-03-11 stsp #include <errno.h>
22 a04f49d2 2019-02-04 stsp #include <dirent.h>
23 56e0773d 2019-11-28 stsp #include <limits.h>
24 5261c201 2018-04-01 stsp #include <stdio.h>
25 5261c201 2018-04-01 stsp #include <stdlib.h>
26 5261c201 2018-04-01 stsp #include <string.h>
27 81a12da5 2020-09-09 naddy #include <unistd.h>
28 5261c201 2018-04-01 stsp #include <zlib.h>
29 788c352e 2018-06-16 stsp #include <time.h>
30 0cd1c46a 2019-03-11 stsp #include <libgen.h>
32 dd038bc6 2021-09-21 thomas.ad #include "got_compat.h"
34 5261c201 2018-04-01 stsp #include "got_error.h"
35 5261c201 2018-04-01 stsp #include "got_object.h"
36 5261c201 2018-04-01 stsp #include "got_repository.h"
37 5261c201 2018-04-01 stsp #include "got_reference.h"
38 9e672c74 2019-03-11 stsp #include "got_opentemp.h"
39 324d37e7 2019-05-11 stsp #include "got_path.h"
41 be288a59 2023-02-23 thomas #include "got_lib_hash.h"
42 5261c201 2018-04-01 stsp #include "got_lib_delta.h"
43 63581804 2018-07-09 stsp #include "got_lib_inflate.h"
44 5261c201 2018-04-01 stsp #include "got_lib_object.h"
45 7b5b670e 2020-12-25 stsp #include "got_lib_object_idset.h"
46 f77a24b0 2019-03-11 stsp #include "got_lib_lockfile.h"
48 fb79db15 2019-02-01 stsp #ifndef nitems
49 fb79db15 2019-02-01 stsp #define nitems(_a) (sizeof(_a) / sizeof((_a)[0]))
52 d1f2edc9 2018-06-13 stsp #define GOT_REF_HEADS "heads"
53 d1f2edc9 2018-06-13 stsp #define GOT_REF_TAGS "tags"
54 d1f2edc9 2018-06-13 stsp #define GOT_REF_REMOTES "remotes"
57 598a8b91 2019-03-15 stsp * We do not resolve tags yet, and don't yet care about sorting refs either,
58 598a8b91 2019-03-15 stsp * so packed-refs files we write contain a minimal header which disables all
59 598a8b91 2019-03-15 stsp * packed-refs "traits" supported by Git.
61 598a8b91 2019-03-15 stsp #define GOT_PACKED_REFS_HEADER "# pack-refs with:"
63 5261c201 2018-04-01 stsp /* A symbolic reference. */
64 5261c201 2018-04-01 stsp struct got_symref {
69 29e86f7a 2019-08-12 stsp #define GOT_REF_RECURSE_MAX 20
71 5261c201 2018-04-01 stsp /* A non-symbolic reference (there is no better designation). */
72 5261c201 2018-04-01 stsp struct got_ref {
74 66107227 2023-01-31 thomas struct got_object_id id;
77 5261c201 2018-04-01 stsp /* A reference which points to an arbitrary object. */
78 5261c201 2018-04-01 stsp struct got_reference {
79 5261c201 2018-04-01 stsp unsigned int flags;
80 5261c201 2018-04-01 stsp #define GOT_REF_IS_SYMBOLIC 0x01
81 f9267c9a 2019-03-15 stsp #define GOT_REF_IS_PACKED 0x02
84 5261c201 2018-04-01 stsp struct got_ref ref;
85 5261c201 2018-04-01 stsp struct got_symref symref;
88 2f17228e 2019-05-12 stsp struct got_lockfile *lf;
89 3f338f0a 2021-07-27 stsp time_t mtime;
91 fd3a2fe6 2021-10-12 thomas /* Cached timestamp for got_ref_cmp_by_commit_timestamp_descending() */
92 fd3a2fe6 2021-10-12 thomas time_t committer_time;
95 5261c201 2018-04-01 stsp static const struct got_error *
96 f9267c9a 2019-03-15 stsp alloc_ref(struct got_reference **ref, const char *name,
97 3f338f0a 2021-07-27 stsp struct got_object_id *id, int flags, time_t mtime)
99 f9267c9a 2019-03-15 stsp const struct got_error *err = NULL;
101 f9267c9a 2019-03-15 stsp *ref = calloc(1, sizeof(**ref));
102 f9267c9a 2019-03-15 stsp if (*ref == NULL)
103 638f9024 2019-05-13 stsp return got_error_from_errno("calloc");
105 66107227 2023-01-31 thomas memcpy(&(*ref)->ref.ref.id, id, sizeof((*ref)->ref.ref.id));
106 c980e470 2019-03-15 stsp (*ref)->flags = flags;
107 f9267c9a 2019-03-15 stsp (*ref)->ref.ref.name = strdup(name);
108 3f338f0a 2021-07-27 stsp (*ref)->mtime = mtime;
109 f9267c9a 2019-03-15 stsp if ((*ref)->ref.ref.name == NULL) {
110 638f9024 2019-05-13 stsp err = got_error_from_errno("strdup");
111 c980e470 2019-03-15 stsp got_ref_close(*ref);
112 f9267c9a 2019-03-15 stsp *ref = NULL;
114 f9267c9a 2019-03-15 stsp return err;
117 f9267c9a 2019-03-15 stsp static const struct got_error *
118 f9267c9a 2019-03-15 stsp alloc_symref(struct got_reference **ref, const char *name,
119 f9267c9a 2019-03-15 stsp const char *target_ref, int flags)
121 f9267c9a 2019-03-15 stsp const struct got_error *err = NULL;
123 5261c201 2018-04-01 stsp *ref = calloc(1, sizeof(**ref));
124 5261c201 2018-04-01 stsp if (*ref == NULL)
125 638f9024 2019-05-13 stsp return got_error_from_errno("calloc");
127 f9267c9a 2019-03-15 stsp (*ref)->flags = GOT_REF_IS_SYMBOLIC | flags;
128 f9267c9a 2019-03-15 stsp (*ref)->ref.symref.name = strdup(name);
129 f9267c9a 2019-03-15 stsp if ((*ref)->ref.symref.name == NULL) {
130 638f9024 2019-05-13 stsp err = got_error_from_errno("strdup");
131 f9267c9a 2019-03-15 stsp got_ref_close(*ref);
132 f9267c9a 2019-03-15 stsp *ref = NULL;
133 cdb8f1fa 2019-08-28 hiltjo return err;
135 f9267c9a 2019-03-15 stsp (*ref)->ref.symref.ref = strdup(target_ref);
136 f9267c9a 2019-03-15 stsp if ((*ref)->ref.symref.ref == NULL) {
137 638f9024 2019-05-13 stsp err = got_error_from_errno("strdup");
138 f9267c9a 2019-03-15 stsp got_ref_close(*ref);
139 f9267c9a 2019-03-15 stsp *ref = NULL;
141 f9267c9a 2019-03-15 stsp return err;
144 5261c201 2018-04-01 stsp static const struct got_error *
145 f9267c9a 2019-03-15 stsp parse_symref(struct got_reference **ref, const char *name, const char *line)
147 f9267c9a 2019-03-15 stsp if (line[0] == '\0')
148 f9267c9a 2019-03-15 stsp return got_error(GOT_ERR_BAD_REF_DATA);
150 f9267c9a 2019-03-15 stsp return alloc_symref(ref, name, line, 0);
153 f9267c9a 2019-03-15 stsp static const struct got_error *
154 3f338f0a 2021-07-27 stsp parse_ref_line(struct got_reference **ref, const char *name, const char *line,
155 3f338f0a 2021-07-27 stsp time_t mtime)
157 c8ae092d 2023-02-23 thomas enum got_hash_algorithm algo = GOT_HASH_SHA1;
158 5892cdd6 2019-03-10 stsp struct got_object_id id;
160 5261c201 2018-04-01 stsp if (strncmp(line, "ref: ", 5) == 0) {
162 5261c201 2018-04-01 stsp return parse_symref(ref, name, line);
165 c8ae092d 2023-02-23 thomas if (!got_parse_object_id(&id, line, algo))
166 30c0868d 2019-02-03 stsp return got_error(GOT_ERR_BAD_REF_DATA);
168 3f338f0a 2021-07-27 stsp return alloc_ref(ref, name, &id, 0, mtime);
171 5261c201 2018-04-01 stsp static const struct got_error *
172 5261c201 2018-04-01 stsp parse_ref_file(struct got_reference **ref, const char *name,
173 b2070a3f 2020-03-22 stsp const char *absname, const char *abspath, int lock)
175 5261c201 2018-04-01 stsp const struct got_error *err = NULL;
177 c30018ad 2019-10-21 stsp char *line = NULL;
178 c30018ad 2019-10-21 stsp size_t linesize = 0;
179 c30018ad 2019-10-21 stsp ssize_t linelen;
180 2f17228e 2019-05-12 stsp struct got_lockfile *lf = NULL;
181 3f338f0a 2021-07-27 stsp struct stat sb;
183 2f17228e 2019-05-12 stsp if (lock) {
184 5345b4c7 2021-07-06 stsp err = got_lockfile_lock(&lf, abspath, -1);
186 9f142382 2020-03-21 stsp if (err->code == GOT_ERR_ERRNO && errno == ENOENT)
187 b2070a3f 2020-03-22 stsp err = got_error_not_ref(name);
188 9f142382 2020-03-21 stsp return err;
192 c56c5d8a 2021-12-31 thomas f = fopen(abspath, "rbe");
193 f5c58ad1 2019-05-12 stsp if (f == NULL) {
194 b2070a3f 2020-03-22 stsp if (errno != ENOTDIR && errno != ENOENT)
195 b2070a3f 2020-03-22 stsp err = got_error_from_errno2("fopen", abspath);
197 b2070a3f 2020-03-22 stsp err = got_error_not_ref(name);
199 5345b4c7 2021-07-06 stsp got_lockfile_unlock(lf, -1);
200 b2070a3f 2020-03-22 stsp return err;
202 3f338f0a 2021-07-27 stsp if (fstat(fileno(f), &sb) == -1) {
203 3f338f0a 2021-07-27 stsp err = got_error_from_errno2("fstat", abspath);
207 c30018ad 2019-10-21 stsp linelen = getline(&line, &linesize, f);
208 c30018ad 2019-10-21 stsp if (linelen == -1) {
209 c30018ad 2019-10-21 stsp if (feof(f))
210 c30018ad 2019-10-21 stsp err = NULL; /* ignore empty files (could be locks) */
212 b2070a3f 2020-03-22 stsp if (errno == EISDIR)
213 b2070a3f 2020-03-22 stsp err = got_error(GOT_ERR_NOT_REF);
214 b2070a3f 2020-03-22 stsp else if (ferror(f))
215 b2070a3f 2020-03-22 stsp err = got_ferror(f, GOT_ERR_IO);
217 b2070a3f 2020-03-22 stsp err = got_error_from_errno2("getline", abspath);
220 5345b4c7 2021-07-06 stsp got_lockfile_unlock(lf, -1);
223 c30018ad 2019-10-21 stsp while (linelen > 0 && line[linelen - 1] == '\n') {
224 c30018ad 2019-10-21 stsp line[linelen - 1] = '\0';
228 3f338f0a 2021-07-27 stsp err = parse_ref_line(ref, absname, line, sb.st_mtime);
229 f5c58ad1 2019-05-12 stsp if (lock) {
231 5345b4c7 2021-07-06 stsp got_lockfile_unlock(lf, -1);
234 f5c58ad1 2019-05-12 stsp (*ref)->lf = lf;
236 5345b4c7 2021-07-06 stsp got_lockfile_unlock(lf, -1);
240 5261c201 2018-04-01 stsp free(line);
241 56b63ca4 2021-01-22 stsp if (fclose(f) == EOF && err == NULL) {
242 638f9024 2019-05-13 stsp err = got_error_from_errno("fclose");
243 2f17228e 2019-05-12 stsp if (*ref) {
245 f5c58ad1 2019-05-12 stsp got_ref_unlock(*ref);
246 2f17228e 2019-05-12 stsp got_ref_close(*ref);
247 2f17228e 2019-05-12 stsp *ref = NULL;
250 5261c201 2018-04-01 stsp return err;
254 c5f754cc 2019-02-01 stsp is_well_known_ref(const char *refname)
256 c5f754cc 2019-02-01 stsp return (strcmp(refname, GOT_REF_HEAD) == 0 ||
257 5261c201 2018-04-01 stsp strcmp(refname, GOT_REF_ORIG_HEAD) == 0 ||
258 5261c201 2018-04-01 stsp strcmp(refname, GOT_REF_MERGE_HEAD) == 0 ||
259 c5f754cc 2019-02-01 stsp strcmp(refname, GOT_REF_FETCH_HEAD) == 0);
262 c5f754cc 2019-02-01 stsp static char *
263 c5f754cc 2019-02-01 stsp get_refs_dir_path(struct got_repository *repo, const char *refname)
265 c5f754cc 2019-02-01 stsp if (is_well_known_ref(refname) || strncmp(refname, "refs/", 5) == 0)
266 6e9da951 2019-01-06 stsp return strdup(got_repo_get_path_git_dir(repo));
268 5261c201 2018-04-01 stsp return got_repo_get_path_refs(repo);
271 5892cdd6 2019-03-10 stsp const struct got_error *
272 5892cdd6 2019-03-10 stsp got_ref_alloc(struct got_reference **ref, const char *name,
273 5892cdd6 2019-03-10 stsp struct got_object_id *id)
275 63e5aa5c 2021-08-23 stsp if (!got_ref_name_is_valid(name))
276 24b5452a 2019-10-09 stsp return got_error_path(name, GOT_ERR_BAD_REF_NAME);
278 3f338f0a 2021-07-27 stsp return alloc_ref(ref, name, id, 0, 0);
281 aaf88317 2019-07-10 stsp const struct got_error *
282 aaf88317 2019-07-10 stsp got_ref_alloc_symref(struct got_reference **ref, const char *name,
283 aaf88317 2019-07-10 stsp struct got_reference *target_ref)
285 63e5aa5c 2021-08-23 stsp if (!got_ref_name_is_valid(name))
286 24b5452a 2019-10-09 stsp return got_error_path(name, GOT_ERR_BAD_REF_NAME);
288 aaf88317 2019-07-10 stsp return alloc_symref(ref, name, got_ref_get_name(target_ref), 0);
291 d1f2edc9 2018-06-13 stsp static const struct got_error *
292 fb79db15 2019-02-01 stsp parse_packed_ref_line(struct got_reference **ref, const char *abs_refname,
293 3f338f0a 2021-07-27 stsp const char *line, time_t mtime)
295 c8ae092d 2023-02-23 thomas enum got_hash_algorithm algo = GOT_HASH_SHA1;
296 5892cdd6 2019-03-10 stsp struct got_object_id id;
297 5892cdd6 2019-03-10 stsp const char *name;
299 fb79db15 2019-02-01 stsp *ref = NULL;
301 532920c8 2019-02-01 stsp if (line[0] == '#' || line[0] == '^')
302 fb79db15 2019-02-01 stsp return NULL;
304 c8ae092d 2023-02-23 thomas if (!got_parse_object_id(&id, line, algo))
305 30c0868d 2019-02-03 stsp return got_error(GOT_ERR_BAD_REF_DATA);
307 199a4027 2019-02-02 stsp if (abs_refname) {
308 199a4027 2019-02-02 stsp if (strcmp(line + SHA1_DIGEST_STRING_LENGTH, abs_refname) != 0)
309 199a4027 2019-02-02 stsp return NULL;
310 5892cdd6 2019-03-10 stsp name = abs_refname;
312 5892cdd6 2019-03-10 stsp name = line + SHA1_DIGEST_STRING_LENGTH;
314 3f338f0a 2021-07-27 stsp return alloc_ref(ref, name, &id, GOT_REF_IS_PACKED, mtime);
317 fb79db15 2019-02-01 stsp static const struct got_error *
318 0dec1cc0 2019-02-01 stsp open_packed_ref(struct got_reference **ref, FILE *f, const char **subdirs,
319 3f338f0a 2021-07-27 stsp int nsubdirs, const char *refname, time_t mtime)
321 fb79db15 2019-02-01 stsp const struct got_error *err = NULL;
322 fb79db15 2019-02-01 stsp char *abs_refname;
323 9bdd68dd 2020-01-02 naddy char *line = NULL;
324 9bdd68dd 2020-01-02 naddy size_t linesize = 0;
325 9bdd68dd 2020-01-02 naddy ssize_t linelen;
326 0dec1cc0 2019-02-01 stsp int i, ref_is_absolute = (strncmp(refname, "refs/", 5) == 0);
328 1e37702e 2019-02-04 stsp *ref = NULL;
330 0dec1cc0 2019-02-01 stsp if (ref_is_absolute)
331 0dec1cc0 2019-02-01 stsp abs_refname = (char *)refname;
333 9bdd68dd 2020-01-02 naddy linelen = getline(&line, &linesize, f);
334 9bdd68dd 2020-01-02 naddy if (linelen == -1) {
335 7ab0422a 2019-03-15 stsp if (feof(f))
337 7ab0422a 2019-03-15 stsp err = got_ferror(f, GOT_ERR_BAD_REF_DATA);
340 9bdd68dd 2020-01-02 naddy if (linelen > 0 && line[linelen - 1] == '\n')
341 9bdd68dd 2020-01-02 naddy line[linelen - 1] = '\0';
342 0dec1cc0 2019-02-01 stsp for (i = 0; i < nsubdirs; i++) {
343 0dec1cc0 2019-02-01 stsp if (!ref_is_absolute &&
344 0dec1cc0 2019-02-01 stsp asprintf(&abs_refname, "refs/%s/%s", subdirs[i],
345 0dec1cc0 2019-02-01 stsp refname) == -1)
346 638f9024 2019-05-13 stsp return got_error_from_errno("asprintf");
347 3f338f0a 2021-07-27 stsp err = parse_packed_ref_line(ref, abs_refname, line,
349 0dec1cc0 2019-02-01 stsp if (!ref_is_absolute)
350 0dec1cc0 2019-02-01 stsp free(abs_refname);
351 532920c8 2019-02-01 stsp if (err || *ref != NULL)
356 fb79db15 2019-02-01 stsp } while (*ref == NULL);
357 9bdd68dd 2020-01-02 naddy free(line);
359 fb79db15 2019-02-01 stsp return err;
362 fb79db15 2019-02-01 stsp static const struct got_error *
363 d1f2edc9 2018-06-13 stsp open_ref(struct got_reference **ref, const char *path_refs, const char *subdir,
364 2f17228e 2019-05-12 stsp const char *name, int lock)
366 d1f2edc9 2018-06-13 stsp const struct got_error *err = NULL;
367 a04f49d2 2019-02-04 stsp char *path = NULL;
368 a04f49d2 2019-02-04 stsp char *absname = NULL;
369 a04f49d2 2019-02-04 stsp int ref_is_absolute = (strncmp(name, "refs/", 5) == 0);
370 75236079 2020-03-25 stsp int ref_is_well_known = (subdir[0] == '\0' && is_well_known_ref(name));
372 1e37702e 2019-02-04 stsp *ref = NULL;
374 63e5aa5c 2021-08-23 stsp if (!got_ref_name_is_valid(name))
375 57c18198 2021-05-24 stsp return got_error_path(name, GOT_ERR_BAD_REF_NAME);
377 a04f49d2 2019-02-04 stsp if (ref_is_absolute || ref_is_well_known) {
378 a04f49d2 2019-02-04 stsp if (asprintf(&path, "%s/%s", path_refs, name) == -1)
379 638f9024 2019-05-13 stsp return got_error_from_errno("asprintf");
380 a04f49d2 2019-02-04 stsp absname = (char *)name;
382 58908ed0 2019-03-11 stsp if (asprintf(&path, "%s/%s%s%s", path_refs, subdir,
383 58908ed0 2019-03-11 stsp subdir[0] ? "/" : "", name) == -1)
384 638f9024 2019-05-13 stsp return got_error_from_errno("asprintf");
386 58908ed0 2019-03-11 stsp if (asprintf(&absname, "refs/%s%s%s",
387 58908ed0 2019-03-11 stsp subdir, subdir[0] ? "/" : "", name) == -1) {
388 638f9024 2019-05-13 stsp err = got_error_from_errno("asprintf");
393 b2070a3f 2020-03-22 stsp err = parse_ref_file(ref, name, absname, path, lock);
395 a04f49d2 2019-02-04 stsp if (!ref_is_absolute && !ref_is_well_known)
396 a04f49d2 2019-02-04 stsp free(absname);
397 a04f49d2 2019-02-04 stsp free(path);
398 d1f2edc9 2018-06-13 stsp return err;
401 5261c201 2018-04-01 stsp const struct got_error *
402 5261c201 2018-04-01 stsp got_ref_open(struct got_reference **ref, struct got_repository *repo,
403 abc59930 2021-09-05 naddy const char *refname, int lock)
405 5261c201 2018-04-01 stsp const struct got_error *err = NULL;
406 3bfa5a06 2022-07-21 thomas char *packed_refs_path = NULL, *path_refs = NULL;
407 fb79db15 2019-02-01 stsp const char *subdirs[] = {
408 fb79db15 2019-02-01 stsp GOT_REF_HEADS, GOT_REF_TAGS, GOT_REF_REMOTES
411 16aeacf7 2020-11-26 stsp int well_known = is_well_known_ref(refname);
412 a875589a 2019-05-12 stsp struct got_lockfile *lf = NULL;
414 1e37702e 2019-02-04 stsp *ref = NULL;
416 e135804e 2019-02-10 stsp path_refs = get_refs_dir_path(repo, refname);
417 e135804e 2019-02-10 stsp if (path_refs == NULL) {
418 638f9024 2019-05-13 stsp err = got_error_from_errno2("get_refs_dir_path", refname);
422 0885ce8f 2019-05-12 stsp if (well_known) {
423 0885ce8f 2019-05-12 stsp err = open_ref(ref, path_refs, "", refname, lock);
427 e135804e 2019-02-10 stsp /* Search on-disk refs before packed refs! */
428 e135804e 2019-02-10 stsp for (i = 0; i < nitems(subdirs); i++) {
429 2f17228e 2019-05-12 stsp err = open_ref(ref, path_refs, subdirs[i], refname,
431 b2070a3f 2020-03-22 stsp if ((err && err->code != GOT_ERR_NOT_REF) || *ref)
435 c5f754cc 2019-02-01 stsp packed_refs_path = got_repo_get_path_packed_refs(repo);
436 e135804e 2019-02-10 stsp if (packed_refs_path == NULL) {
437 638f9024 2019-05-13 stsp err = got_error_from_errno(
438 230a42bd 2019-05-11 jcs "got_repo_get_path_packed_refs");
442 2f17228e 2019-05-12 stsp if (lock) {
443 5345b4c7 2021-07-06 stsp err = got_lockfile_lock(&lf, packed_refs_path, -1);
447 c56c5d8a 2021-12-31 thomas f = fopen(packed_refs_path, "rbe");
448 c5f754cc 2019-02-01 stsp if (f != NULL) {
449 3f338f0a 2021-07-27 stsp struct stat sb;
450 3f338f0a 2021-07-27 stsp if (fstat(fileno(f), &sb) == -1) {
451 3f338f0a 2021-07-27 stsp err = got_error_from_errno2("fstat",
452 3f338f0a 2021-07-27 stsp packed_refs_path);
455 0dec1cc0 2019-02-01 stsp err = open_packed_ref(ref, f, subdirs, nitems(subdirs),
456 3f338f0a 2021-07-27 stsp refname, sb.st_mtime);
457 a875589a 2019-05-12 stsp if (!err) {
458 56b63ca4 2021-01-22 stsp if (fclose(f) == EOF) {
459 638f9024 2019-05-13 stsp err = got_error_from_errno("fclose");
460 a875589a 2019-05-12 stsp got_ref_close(*ref);
461 a875589a 2019-05-12 stsp *ref = NULL;
462 6e472abb 2019-05-13 stsp } else if (*ref)
463 a875589a 2019-05-12 stsp (*ref)->lf = lf;
468 5b575c25 2019-05-12 stsp if (!err && *ref == NULL)
469 1e37702e 2019-02-04 stsp err = got_error_not_ref(refname);
470 a875589a 2019-05-12 stsp if (err && lf)
471 5345b4c7 2021-07-06 stsp got_lockfile_unlock(lf, -1);
472 3bfa5a06 2022-07-21 thomas free(packed_refs_path);
473 5261c201 2018-04-01 stsp free(path_refs);
474 5261c201 2018-04-01 stsp return err;
478 5261c201 2018-04-01 stsp got_ref_close(struct got_reference *ref)
480 e09d28b1 2019-03-15 stsp if (ref->flags & GOT_REF_IS_SYMBOLIC) {
481 5261c201 2018-04-01 stsp free(ref->ref.symref.name);
482 e09d28b1 2019-03-15 stsp free(ref->ref.symref.ref);
484 5261c201 2018-04-01 stsp free(ref->ref.ref.name);
488 5261c201 2018-04-01 stsp struct got_reference *
489 5261c201 2018-04-01 stsp got_ref_dup(struct got_reference *ref)
491 5261c201 2018-04-01 stsp struct got_reference *ret;
493 5261c201 2018-04-01 stsp ret = calloc(1, sizeof(*ret));
494 5261c201 2018-04-01 stsp if (ret == NULL)
495 5261c201 2018-04-01 stsp return NULL;
497 5261c201 2018-04-01 stsp ret->flags = ref->flags;
498 5261c201 2018-04-01 stsp if (ref->flags & GOT_REF_IS_SYMBOLIC) {
499 5261c201 2018-04-01 stsp ret->ref.symref.name = strdup(ref->ref.symref.name);
500 5261c201 2018-04-01 stsp if (ret->ref.symref.name == NULL) {
502 5261c201 2018-04-01 stsp return NULL;
504 5261c201 2018-04-01 stsp ret->ref.symref.ref = strdup(ref->ref.symref.ref);
505 5261c201 2018-04-01 stsp if (ret->ref.symref.ref == NULL) {
506 5261c201 2018-04-01 stsp free(ret->ref.symref.name);
508 5261c201 2018-04-01 stsp return NULL;
511 4c4ce67b 2020-12-25 stsp ret->ref.ref.name = strdup(ref->ref.ref.name);
512 4c4ce67b 2020-12-25 stsp if (ret->ref.ref.name == NULL) {
514 5261c201 2018-04-01 stsp return NULL;
516 66107227 2023-01-31 thomas memcpy(&ret->ref.ref.id, &ref->ref.ref.id,
517 66107227 2023-01-31 thomas sizeof(ret->ref.ref.id));
520 5261c201 2018-04-01 stsp return ret;
523 b8bad2ba 2019-08-23 stsp const struct got_error *
524 b8bad2ba 2019-08-23 stsp got_reflist_entry_dup(struct got_reflist_entry **newp,
525 b8bad2ba 2019-08-23 stsp struct got_reflist_entry *re)
527 b8bad2ba 2019-08-23 stsp const struct got_error *err = NULL;
528 b8bad2ba 2019-08-23 stsp struct got_reflist_entry *new;
530 b8bad2ba 2019-08-23 stsp *newp = NULL;
532 b8bad2ba 2019-08-23 stsp new = malloc(sizeof(*new));
533 b8bad2ba 2019-08-23 stsp if (new == NULL)
534 b8bad2ba 2019-08-23 stsp return got_error_from_errno("malloc");
536 b8bad2ba 2019-08-23 stsp new->ref = got_ref_dup(re->ref);
537 b8bad2ba 2019-08-23 stsp if (new->ref == NULL) {
538 b8bad2ba 2019-08-23 stsp err = got_error_from_errno("got_ref_dup");
540 b8bad2ba 2019-08-23 stsp return err;
543 b8bad2ba 2019-08-23 stsp *newp = new;
544 b8bad2ba 2019-08-23 stsp return NULL;
547 cce2f485 2021-08-22 stsp const struct got_error *
548 cce2f485 2021-08-22 stsp got_ref_resolve_symbolic(struct got_reference **resolved,
549 5261c201 2018-04-01 stsp struct got_repository *repo, struct got_reference *ref)
551 5261c201 2018-04-01 stsp struct got_reference *nextref;
552 5261c201 2018-04-01 stsp const struct got_error *err;
554 2f17228e 2019-05-12 stsp err = got_ref_open(&nextref, repo, ref->ref.symref.ref, 0);
556 5261c201 2018-04-01 stsp return err;
558 5261c201 2018-04-01 stsp if (nextref->flags & GOT_REF_IS_SYMBOLIC)
559 cce2f485 2021-08-22 stsp err = got_ref_resolve_symbolic(resolved, repo, nextref);
561 5261c201 2018-04-01 stsp *resolved = got_ref_dup(nextref);
563 5261c201 2018-04-01 stsp got_ref_close(nextref);
564 5261c201 2018-04-01 stsp return err;
567 29e86f7a 2019-08-12 stsp static const struct got_error *
568 29e86f7a 2019-08-12 stsp ref_resolve(struct got_object_id **id, struct got_repository *repo,
569 29e86f7a 2019-08-12 stsp struct got_reference *ref, int recursion)
571 5261c201 2018-04-01 stsp const struct got_error *err;
573 29e86f7a 2019-08-12 stsp if (recursion <= 0)
574 29e86f7a 2019-08-12 stsp return got_error_msg(GOT_ERR_RECURSION,
575 29e86f7a 2019-08-12 stsp "reference recursion limit reached");
577 5261c201 2018-04-01 stsp if (ref->flags & GOT_REF_IS_SYMBOLIC) {
578 5261c201 2018-04-01 stsp struct got_reference *resolved = NULL;
579 cce2f485 2021-08-22 stsp err = got_ref_resolve_symbolic(&resolved, repo, ref);
580 5261c201 2018-04-01 stsp if (err == NULL)
581 29e86f7a 2019-08-12 stsp err = ref_resolve(id, repo, resolved, --recursion);
582 57b6f99a 2019-04-13 stsp if (resolved)
583 57b6f99a 2019-04-13 stsp got_ref_close(resolved);
584 5261c201 2018-04-01 stsp return err;
587 5261c201 2018-04-01 stsp *id = calloc(1, sizeof(**id));
588 5261c201 2018-04-01 stsp if (*id == NULL)
589 638f9024 2019-05-13 stsp return got_error_from_errno("calloc");
590 66107227 2023-01-31 thomas memcpy(*id, &ref->ref.ref.id, sizeof(**id));
591 5261c201 2018-04-01 stsp return NULL;
594 29e86f7a 2019-08-12 stsp const struct got_error *
595 29e86f7a 2019-08-12 stsp got_ref_resolve(struct got_object_id **id, struct got_repository *repo,
596 29e86f7a 2019-08-12 stsp struct got_reference *ref)
598 29e86f7a 2019-08-12 stsp return ref_resolve(id, repo, ref, GOT_REF_RECURSE_MAX);
602 5261c201 2018-04-01 stsp got_ref_to_str(struct got_reference *ref)
606 271d2a38 2018-12-25 stsp if (ref->flags & GOT_REF_IS_SYMBOLIC)
607 271d2a38 2018-12-25 stsp return strdup(ref->ref.symref.ref);
609 66107227 2023-01-31 thomas if (got_object_id_str(&str, &ref->ref.ref.id) != NULL)
610 271d2a38 2018-12-25 stsp return NULL;
612 5261c201 2018-04-01 stsp return str;
615 0bd18d37 2019-02-01 stsp const char *
616 0bd18d37 2019-02-01 stsp got_ref_get_name(struct got_reference *ref)
618 0bd18d37 2019-02-01 stsp if (ref->flags & GOT_REF_IS_SYMBOLIC)
619 0bd18d37 2019-02-01 stsp return ref->ref.symref.name;
621 0bd18d37 2019-02-01 stsp return ref->ref.ref.name;
624 aaf88317 2019-07-10 stsp const char *
625 aaf88317 2019-07-10 stsp got_ref_get_symref_target(struct got_reference *ref)
627 aaf88317 2019-07-10 stsp if (ref->flags & GOT_REF_IS_SYMBOLIC)
628 aaf88317 2019-07-10 stsp return ref->ref.symref.ref;
630 b8bad2ba 2019-08-23 stsp return NULL;
634 3f338f0a 2021-07-27 stsp got_ref_get_mtime(struct got_reference *ref)
636 3f338f0a 2021-07-27 stsp return ref->mtime;
639 b8bad2ba 2019-08-23 stsp const struct got_error *
640 b8bad2ba 2019-08-23 stsp got_ref_cmp_by_name(void *arg, int *cmp, struct got_reference *re1,
641 b8bad2ba 2019-08-23 stsp struct got_reference* re2)
643 b8bad2ba 2019-08-23 stsp const char *name1 = got_ref_get_name(re1);
644 b8bad2ba 2019-08-23 stsp const char *name2 = got_ref_get_name(re2);
646 b8bad2ba 2019-08-23 stsp *cmp = got_path_cmp(name1, name2, strlen(name1), strlen(name2));
647 aaf88317 2019-07-10 stsp return NULL;
650 d1f16636 2020-01-15 stsp const struct got_error *
651 d1f16636 2020-01-15 stsp got_ref_cmp_tags(void *arg, int *cmp, struct got_reference *ref1,
652 d1f16636 2020-01-15 stsp struct got_reference *ref2)
654 d1f16636 2020-01-15 stsp const struct got_error *err = NULL;
655 d1f16636 2020-01-15 stsp struct got_repository *repo = arg;
656 d1f16636 2020-01-15 stsp struct got_object_id *id1, *id2 = NULL;
657 d1f16636 2020-01-15 stsp struct got_tag_object *tag1 = NULL, *tag2 = NULL;
658 d1f16636 2020-01-15 stsp struct got_commit_object *commit1 = NULL, *commit2 = NULL;
659 d1f16636 2020-01-15 stsp time_t time1, time2;
663 d1f16636 2020-01-15 stsp err = got_ref_resolve(&id1, repo, ref1);
665 d1f16636 2020-01-15 stsp return err;
666 d1f16636 2020-01-15 stsp err = got_object_open_as_tag(&tag1, repo, id1);
668 d1f16636 2020-01-15 stsp if (err->code != GOT_ERR_OBJ_TYPE)
670 d1f16636 2020-01-15 stsp /* "lightweight" tag */
671 d1f16636 2020-01-15 stsp err = got_object_open_as_commit(&commit1, repo, id1);
674 d1f16636 2020-01-15 stsp time1 = got_object_commit_get_committer_time(commit1);
676 d1f16636 2020-01-15 stsp time1 = got_object_tag_get_tagger_time(tag1);
678 d1f16636 2020-01-15 stsp err = got_ref_resolve(&id2, repo, ref2);
681 d1f16636 2020-01-15 stsp err = got_object_open_as_tag(&tag2, repo, id2);
683 d1f16636 2020-01-15 stsp if (err->code != GOT_ERR_OBJ_TYPE)
685 d1f16636 2020-01-15 stsp /* "lightweight" tag */
686 d1f16636 2020-01-15 stsp err = got_object_open_as_commit(&commit2, repo, id2);
689 d1f16636 2020-01-15 stsp time2 = got_object_commit_get_committer_time(commit2);
691 d1f16636 2020-01-15 stsp time2 = got_object_tag_get_tagger_time(tag2);
693 d1f16636 2020-01-15 stsp /* Put latest tags first. */
694 d1f16636 2020-01-15 stsp if (time1 < time2)
696 d1f16636 2020-01-15 stsp else if (time1 > time2)
699 d1f16636 2020-01-15 stsp err = got_ref_cmp_by_name(NULL, cmp, ref2, ref1);
704 d1f16636 2020-01-15 stsp got_object_tag_close(tag1);
706 d1f16636 2020-01-15 stsp got_object_tag_close(tag2);
707 e600f124 2021-03-21 stsp if (commit1)
708 e600f124 2021-03-21 stsp got_object_commit_close(commit1);
709 e600f124 2021-03-21 stsp if (commit2)
710 e600f124 2021-03-21 stsp got_object_commit_close(commit2);
711 3bfadbd4 2021-11-20 thomas return err;
714 3bfadbd4 2021-11-20 thomas static const struct got_error *
715 3bfadbd4 2021-11-20 thomas get_committer_time(struct got_reference *ref, struct got_repository *repo)
717 3bfadbd4 2021-11-20 thomas const struct got_error *err = NULL;
718 3bfadbd4 2021-11-20 thomas int obj_type;
719 3bfadbd4 2021-11-20 thomas struct got_commit_object *commit = NULL;
720 3bfadbd4 2021-11-20 thomas struct got_tag_object *tag = NULL;
721 3bfadbd4 2021-11-20 thomas struct got_object_id *id = NULL;
723 3bfadbd4 2021-11-20 thomas err = got_ref_resolve(&id, repo, ref);
725 3bfadbd4 2021-11-20 thomas return err;
727 3bfadbd4 2021-11-20 thomas err = got_object_get_type(&obj_type, repo, id);
729 3bfadbd4 2021-11-20 thomas goto done;
731 3bfadbd4 2021-11-20 thomas switch (obj_type) {
732 3bfadbd4 2021-11-20 thomas case GOT_OBJ_TYPE_COMMIT:
733 3bfadbd4 2021-11-20 thomas err = got_object_open_as_commit(&commit, repo, id);
735 3bfadbd4 2021-11-20 thomas goto done;
736 3bfadbd4 2021-11-20 thomas ref->committer_time =
737 3bfadbd4 2021-11-20 thomas got_object_commit_get_committer_time(commit);
739 3bfadbd4 2021-11-20 thomas case GOT_OBJ_TYPE_TAG:
740 3bfadbd4 2021-11-20 thomas err = got_object_open_as_tag(&tag, repo, id);
742 3bfadbd4 2021-11-20 thomas goto done;
743 3bfadbd4 2021-11-20 thomas ref->committer_time = got_object_tag_get_tagger_time(tag);
746 3bfadbd4 2021-11-20 thomas /* best effort for other object types */
747 3bfadbd4 2021-11-20 thomas ref->committer_time = got_ref_get_mtime(ref);
751 3bfadbd4 2021-11-20 thomas free(id);
752 3bfadbd4 2021-11-20 thomas if (commit)
753 3bfadbd4 2021-11-20 thomas got_object_commit_close(commit);
755 3bfadbd4 2021-11-20 thomas got_object_tag_close(tag);
756 e600f124 2021-03-21 stsp return err;
759 e600f124 2021-03-21 stsp const struct got_error *
760 e600f124 2021-03-21 stsp got_ref_cmp_by_commit_timestamp_descending(void *arg, int *cmp,
761 e600f124 2021-03-21 stsp struct got_reference *ref1, struct got_reference *ref2)
763 e87a53ff 2021-11-20 thomas const struct got_error *err = NULL;
764 e600f124 2021-03-21 stsp struct got_repository *repo = arg;
768 fd3a2fe6 2021-10-12 thomas if (ref1->committer_time == 0) {
769 3bfadbd4 2021-11-20 thomas err = get_committer_time(ref1, repo);
771 fd3a2fe6 2021-10-12 thomas return err;
773 3bfadbd4 2021-11-20 thomas if (ref2->committer_time == 0) {
774 3bfadbd4 2021-11-20 thomas err = get_committer_time(ref2, repo);
776 fd3a2fe6 2021-10-12 thomas return err;
779 fd3a2fe6 2021-10-12 thomas if (ref1->committer_time < ref2->committer_time)
781 fd3a2fe6 2021-10-12 thomas else if (ref2->committer_time < ref1->committer_time)
784 a729e288 2021-11-20 thomas return got_ref_cmp_by_name(arg, cmp, ref1, ref2);
786 d1f16636 2020-01-15 stsp return err;
789 779e1159 2021-06-18 stsp const struct got_error *
790 48b4f239 2021-12-31 thomas got_reflist_insert(struct got_reflist_entry **newp,
791 48b4f239 2021-12-31 thomas struct got_reflist_head *refs, struct got_reference *ref,
792 48b4f239 2021-12-31 thomas got_ref_cmp_cb cmp_cb, void *cmp_arg)
794 199a4027 2019-02-02 stsp const struct got_error *err;
795 d9dff0e5 2020-12-26 stsp struct got_reflist_entry *new, *re;
798 505287be 2019-03-15 stsp *newp = NULL;
800 41861f2b 2022-09-05 thomas if (cmp_cb != got_ref_cmp_by_name && (ref->flags & GOT_REF_IS_PACKED)) {
802 21de8138 2022-09-05 thomas * If we are not sorting elements by name then we must still
803 21de8138 2022-09-05 thomas * detect collisions between a packed ref and an on-disk ref
804 21de8138 2022-09-05 thomas * using the same name. On-disk refs take precedence and are
805 21de8138 2022-09-05 thomas * already present on the list before packed refs get added.
807 21de8138 2022-09-05 thomas TAILQ_FOREACH(re, refs, entry) {
808 41861f2b 2022-09-05 thomas err = got_ref_cmp_by_name(NULL, &cmp, re->ref, ref);
810 21de8138 2022-09-05 thomas return err;
811 41861f2b 2022-09-05 thomas if (cmp == 0)
812 21de8138 2022-09-05 thomas return NULL;
816 41861f2b 2022-09-05 thomas new = malloc(sizeof(*new));
817 41861f2b 2022-09-05 thomas if (new == NULL)
818 41861f2b 2022-09-05 thomas return got_error_from_errno("malloc");
819 41861f2b 2022-09-05 thomas new->ref = ref;
820 41861f2b 2022-09-05 thomas *newp = new;
823 29b5c214 2019-02-04 stsp * We must de-duplicate entries on insert because packed-refs may
824 29b5c214 2019-02-04 stsp * contain redundant entries. On-disk refs take precedence.
825 29b5c214 2019-02-04 stsp * This code assumes that on-disk revs are read before packed-refs.
826 e397b6db 2019-02-04 stsp * We're iterating the list anyway, so insert elements sorted by name.
828 d9dff0e5 2020-12-26 stsp * Many callers will provide paths in a somewhat sorted order.
829 d9dff0e5 2020-12-26 stsp * Iterating backwards from the tail of the list should be more
830 d9dff0e5 2020-12-26 stsp * efficient than traversing through the entire list each time
831 d9dff0e5 2020-12-26 stsp * an element is inserted.
833 d9dff0e5 2020-12-26 stsp re = TAILQ_LAST(refs, got_reflist_head);
834 7a3c76f5 2019-02-05 stsp while (re) {
835 b8bad2ba 2019-08-23 stsp err = (*cmp_cb)(cmp_arg, &cmp, re->ref, new->ref);
837 b8bad2ba 2019-08-23 stsp return err;
838 e397b6db 2019-02-04 stsp if (cmp == 0) {
839 27a1ed03 2019-03-15 stsp /* duplicate */
841 505287be 2019-03-15 stsp *newp = NULL;
842 7a3c76f5 2019-02-05 stsp return NULL;
843 d9dff0e5 2020-12-26 stsp } else if (cmp < 0) {
844 d9dff0e5 2020-12-26 stsp TAILQ_INSERT_AFTER(refs, re, new, entry);
845 7a3c76f5 2019-02-05 stsp return NULL;
847 d9dff0e5 2020-12-26 stsp re = TAILQ_PREV(re, got_reflist_head, entry);
850 d9dff0e5 2020-12-26 stsp TAILQ_INSERT_HEAD(refs, new, entry);
851 199a4027 2019-02-02 stsp return NULL;
854 fb95e70d 2021-11-20 thomas const struct got_error *
855 fb95e70d 2021-11-20 thomas got_reflist_sort(struct got_reflist_head *refs,
856 fb95e70d 2021-11-20 thomas got_ref_cmp_cb cmp_cb, void *cmp_arg)
858 fb95e70d 2021-11-20 thomas const struct got_error *err = NULL;
859 fb95e70d 2021-11-20 thomas struct got_reflist_entry *re, *tmp, *new;
860 fb95e70d 2021-11-20 thomas struct got_reflist_head sorted;
862 fb95e70d 2021-11-20 thomas TAILQ_INIT(&sorted);
864 fb95e70d 2021-11-20 thomas TAILQ_FOREACH_SAFE(re, refs, entry, tmp) {
865 fb95e70d 2021-11-20 thomas struct got_reference *ref = re->ref;
866 fb95e70d 2021-11-20 thomas TAILQ_REMOVE(refs, re, entry);
867 fb95e70d 2021-11-20 thomas free(re);
868 fb95e70d 2021-11-20 thomas err = got_reflist_insert(&new, &sorted, ref, cmp_cb, cmp_arg);
869 fb95e70d 2021-11-20 thomas if (err || new == NULL /* duplicate */)
870 fb95e70d 2021-11-20 thomas got_ref_close(ref);
872 fb95e70d 2021-11-20 thomas return err;
875 fb95e70d 2021-11-20 thomas TAILQ_CONCAT(refs, &sorted, entry);
876 fb95e70d 2021-11-20 thomas return NULL;
879 a04f49d2 2019-02-04 stsp static const struct got_error *
880 29b5c214 2019-02-04 stsp gather_on_disk_refs(struct got_reflist_head *refs, const char *path_refs,
881 b8bad2ba 2019-08-23 stsp const char *subdir, struct got_repository *repo,
882 b8bad2ba 2019-08-23 stsp got_ref_cmp_cb cmp_cb, void *cmp_arg)
884 a04f49d2 2019-02-04 stsp const struct got_error *err = NULL;
885 a04f49d2 2019-02-04 stsp DIR *d = NULL;
886 a04f49d2 2019-02-04 stsp char *path_subdir;
888 b2070a3f 2020-03-22 stsp while (subdir[0] == '/')
891 a04f49d2 2019-02-04 stsp if (asprintf(&path_subdir, "%s/%s", path_refs, subdir) == -1)
892 638f9024 2019-05-13 stsp return got_error_from_errno("asprintf");
894 a04f49d2 2019-02-04 stsp d = opendir(path_subdir);
895 a04f49d2 2019-02-04 stsp if (d == NULL)
899 a04f49d2 2019-02-04 stsp struct dirent *dent;
900 a04f49d2 2019-02-04 stsp struct got_reference *ref;
901 a04f49d2 2019-02-04 stsp char *child;
904 a04f49d2 2019-02-04 stsp dent = readdir(d);
905 a04f49d2 2019-02-04 stsp if (dent == NULL)
908 a04f49d2 2019-02-04 stsp if (strcmp(dent->d_name, ".") == 0 ||
909 a04f49d2 2019-02-04 stsp strcmp(dent->d_name, "..") == 0)
912 20ccae39 2020-07-21 stsp err = got_path_dirent_type(&type, path_subdir, dent);
916 20ccae39 2020-07-21 stsp switch (type) {
917 a04f49d2 2019-02-04 stsp case DT_REG:
918 2f17228e 2019-05-12 stsp err = open_ref(&ref, path_refs, subdir, dent->d_name,
923 505287be 2019-03-15 stsp struct got_reflist_entry *new;
924 72acb3d8 2021-08-06 stsp err = got_reflist_insert(&new, refs, ref,
925 b8bad2ba 2019-08-23 stsp cmp_cb, cmp_arg);
926 505287be 2019-03-15 stsp if (err || new == NULL /* duplicate */)
927 505287be 2019-03-15 stsp got_ref_close(ref);
932 a04f49d2 2019-02-04 stsp case DT_DIR:
933 a04f49d2 2019-02-04 stsp if (asprintf(&child, "%s%s%s", subdir,
934 a04f49d2 2019-02-04 stsp subdir[0] == '\0' ? "" : "/", dent->d_name) == -1) {
935 638f9024 2019-05-13 stsp err = got_error_from_errno("asprintf");
938 b8bad2ba 2019-08-23 stsp err = gather_on_disk_refs(refs, path_refs, child, repo,
939 b8bad2ba 2019-08-23 stsp cmp_cb, cmp_arg);
940 a04f49d2 2019-02-04 stsp free(child);
948 a04f49d2 2019-02-04 stsp closedir(d);
949 a04f49d2 2019-02-04 stsp free(path_subdir);
950 a04f49d2 2019-02-04 stsp return err;
953 199a4027 2019-02-02 stsp const struct got_error *
954 29606af7 2019-08-23 stsp got_ref_list(struct got_reflist_head *refs, struct got_repository *repo,
955 b8bad2ba 2019-08-23 stsp const char *ref_namespace, got_ref_cmp_cb cmp_cb, void *cmp_arg)
957 199a4027 2019-02-02 stsp const struct got_error *err;
958 3bfa5a06 2022-07-21 thomas char *packed_refs_path = NULL, *path_refs = NULL;
959 0c6f49ba 2022-07-01 thomas char *abs_namespace = NULL, *buf = NULL;
960 0c6f49ba 2022-07-01 thomas const char *ondisk_ref_namespace = NULL;
961 9bdd68dd 2020-01-02 naddy char *line = NULL;
962 29b5c214 2019-02-04 stsp FILE *f = NULL;
963 199a4027 2019-02-02 stsp struct got_reference *ref;
964 505287be 2019-03-15 stsp struct got_reflist_entry *new;
966 29606af7 2019-08-23 stsp if (ref_namespace == NULL || ref_namespace[0] == '\0') {
967 29606af7 2019-08-23 stsp path_refs = get_refs_dir_path(repo, GOT_REF_HEAD);
968 29606af7 2019-08-23 stsp if (path_refs == NULL) {
969 29606af7 2019-08-23 stsp err = got_error_from_errno("get_refs_dir_path");
972 29606af7 2019-08-23 stsp err = open_ref(&ref, path_refs, "", GOT_REF_HEAD, 0);
975 72acb3d8 2021-08-06 stsp err = got_reflist_insert(&new, refs, ref, cmp_cb, cmp_arg);
976 29606af7 2019-08-23 stsp if (err || new == NULL /* duplicate */)
977 29606af7 2019-08-23 stsp got_ref_close(ref);
978 f68a7890 2020-03-19 stsp if (err && err->code != GOT_ERR_NOT_REF)
981 b2070a3f 2020-03-22 stsp /* Try listing a single reference. */
982 b2070a3f 2020-03-22 stsp const char *refname = ref_namespace;
983 b2070a3f 2020-03-22 stsp path_refs = get_refs_dir_path(repo, refname);
984 b2070a3f 2020-03-22 stsp if (path_refs == NULL) {
985 b2070a3f 2020-03-22 stsp err = got_error_from_errno("get_refs_dir_path");
988 b2070a3f 2020-03-22 stsp err = open_ref(&ref, path_refs, "", refname, 0);
990 b2070a3f 2020-03-22 stsp if (err->code != GOT_ERR_NOT_REF)
992 b2070a3f 2020-03-22 stsp /* Try to look up references in a given namespace. */
994 72acb3d8 2021-08-06 stsp err = got_reflist_insert(&new, refs, ref,
995 b2070a3f 2020-03-22 stsp cmp_cb, cmp_arg);
996 b2070a3f 2020-03-22 stsp if (err || new == NULL /* duplicate */)
997 b2070a3f 2020-03-22 stsp got_ref_close(ref);
998 b2070a3f 2020-03-22 stsp return err;
1002 b2070a3f 2020-03-22 stsp if (ref_namespace) {
1003 b2070a3f 2020-03-22 stsp size_t len;
1004 b2070a3f 2020-03-22 stsp /* Canonicalize the path to eliminate double-slashes if any. */
1005 b2070a3f 2020-03-22 stsp if (asprintf(&abs_namespace, "/%s", ref_namespace) == -1) {
1006 b2070a3f 2020-03-22 stsp err = got_error_from_errno("asprintf");
1007 b2070a3f 2020-03-22 stsp goto done;
1009 b2070a3f 2020-03-22 stsp len = strlen(abs_namespace) + 1;
1010 b2070a3f 2020-03-22 stsp buf = malloc(len);
1011 b2070a3f 2020-03-22 stsp if (buf == NULL) {
1012 b2070a3f 2020-03-22 stsp err = got_error_from_errno("malloc");
1013 b2070a3f 2020-03-22 stsp goto done;
1015 b2070a3f 2020-03-22 stsp err = got_canonpath(abs_namespace, buf, len);
1017 b2070a3f 2020-03-22 stsp goto done;
1018 b2070a3f 2020-03-22 stsp ondisk_ref_namespace = buf;
1019 b2070a3f 2020-03-22 stsp while (ondisk_ref_namespace[0] == '/')
1020 b2070a3f 2020-03-22 stsp ondisk_ref_namespace++;
1021 b2070a3f 2020-03-22 stsp if (strncmp(ondisk_ref_namespace, "refs/", 5) == 0)
1022 b2070a3f 2020-03-22 stsp ondisk_ref_namespace += 5;
1023 b2070a3f 2020-03-22 stsp else if (strcmp(ondisk_ref_namespace, "refs") == 0)
1024 b2070a3f 2020-03-22 stsp ondisk_ref_namespace = "";
1027 29b5c214 2019-02-04 stsp /* Gather on-disk refs before parsing packed-refs. */
1028 29b5c214 2019-02-04 stsp free(path_refs);
1029 29b5c214 2019-02-04 stsp path_refs = get_refs_dir_path(repo, "");
1030 29b5c214 2019-02-04 stsp if (path_refs == NULL) {
1031 638f9024 2019-05-13 stsp err = got_error_from_errno("get_refs_dir_path");
1032 29b5c214 2019-02-04 stsp goto done;
1034 29606af7 2019-08-23 stsp err = gather_on_disk_refs(refs, path_refs,
1035 6aeab596 2019-08-28 stsp ondisk_ref_namespace ? ondisk_ref_namespace : "", repo,
1036 6aeab596 2019-08-28 stsp cmp_cb, cmp_arg);
1038 29b5c214 2019-02-04 stsp goto done;
1041 29b5c214 2019-02-04 stsp * The packed-refs file may contain redundant entries, in which
1042 29b5c214 2019-02-04 stsp * case on-disk refs take precedence.
1044 199a4027 2019-02-02 stsp packed_refs_path = got_repo_get_path_packed_refs(repo);
1045 29b5c214 2019-02-04 stsp if (packed_refs_path == NULL) {
1046 638f9024 2019-05-13 stsp err = got_error_from_errno("got_repo_get_path_packed_refs");
1047 29b5c214 2019-02-04 stsp goto done;
1050 c56c5d8a 2021-12-31 thomas f = fopen(packed_refs_path, "re");
1052 7a90b680 2020-01-02 naddy size_t linesize = 0;
1053 9bdd68dd 2020-01-02 naddy ssize_t linelen;
1054 3f338f0a 2021-07-27 stsp struct stat sb;
1056 3f338f0a 2021-07-27 stsp if (fstat(fileno(f), &sb) == -1) {
1057 3f338f0a 2021-07-27 stsp err = got_error_from_errno2("fstat", packed_refs_path);
1058 3f338f0a 2021-07-27 stsp goto done;
1061 9bdd68dd 2020-01-02 naddy linelen = getline(&line, &linesize, f);
1062 9bdd68dd 2020-01-02 naddy if (linelen == -1) {
1063 0bb4abae 2019-03-15 stsp if (feof(f))
1065 0bb4abae 2019-03-15 stsp err = got_ferror(f, GOT_ERR_BAD_REF_DATA);
1066 0bb4abae 2019-03-15 stsp goto done;
1068 9bdd68dd 2020-01-02 naddy if (linelen > 0 && line[linelen - 1] == '\n')
1069 9bdd68dd 2020-01-02 naddy line[linelen - 1] = '\0';
1070 3f338f0a 2021-07-27 stsp err = parse_packed_ref_line(&ref, NULL, line,
1071 3f338f0a 2021-07-27 stsp sb.st_mtime);
1073 199a4027 2019-02-02 stsp goto done;
1074 76b4ead2 2019-02-03 stsp if (ref) {
1075 29606af7 2019-08-23 stsp if (ref_namespace) {
1076 29606af7 2019-08-23 stsp const char *name;
1077 29606af7 2019-08-23 stsp name = got_ref_get_name(ref);
1078 b2070a3f 2020-03-22 stsp if (!got_path_is_child(name,
1079 b2070a3f 2020-03-22 stsp ref_namespace,
1080 b2070a3f 2020-03-22 stsp strlen(ref_namespace))) {
1081 29606af7 2019-08-23 stsp got_ref_close(ref);
1085 72acb3d8 2021-08-06 stsp err = got_reflist_insert(&new, refs, ref,
1086 b8bad2ba 2019-08-23 stsp cmp_cb, cmp_arg);
1087 505287be 2019-03-15 stsp if (err || new == NULL /* duplicate */)
1088 505287be 2019-03-15 stsp got_ref_close(ref);
1090 76b4ead2 2019-02-03 stsp goto done;
1095 3bfa5a06 2022-07-21 thomas free(packed_refs_path);
1096 b2070a3f 2020-03-22 stsp free(abs_namespace);
1097 b2070a3f 2020-03-22 stsp free(buf);
1098 9bdd68dd 2020-01-02 naddy free(line);
1099 a04f49d2 2019-02-04 stsp free(path_refs);
1100 56b63ca4 2021-01-22 stsp if (f && fclose(f) == EOF && err == NULL)
1101 638f9024 2019-05-13 stsp err = got_error_from_errno("fclose");
1102 199a4027 2019-02-02 stsp return err;
1106 e2e879a0 2019-03-11 stsp got_ref_list_free(struct got_reflist_head *refs)
1108 e2e879a0 2019-03-11 stsp struct got_reflist_entry *re;
1110 d9dff0e5 2020-12-26 stsp while ((re = TAILQ_FIRST(refs))) {
1111 d9dff0e5 2020-12-26 stsp TAILQ_REMOVE(refs, re, entry);
1112 af8a5c4a 2021-05-21 stsp got_ref_close(re->ref);
1118 b249b824 2019-05-09 stsp got_ref_is_symbolic(struct got_reference *ref)
1120 b249b824 2019-05-09 stsp return (ref->flags & GOT_REF_IS_SYMBOLIC);
1123 b249b824 2019-05-09 stsp const struct got_error *
1124 b249b824 2019-05-09 stsp got_ref_change_ref(struct got_reference *ref, struct got_object_id *id)
1126 b249b824 2019-05-09 stsp if (ref->flags & GOT_REF_IS_SYMBOLIC)
1127 b249b824 2019-05-09 stsp return got_error(GOT_ERR_BAD_REF_TYPE);
1129 66107227 2023-01-31 thomas memcpy(&ref->ref.ref.id, id, sizeof(ref->ref.ref.id));
1130 b249b824 2019-05-09 stsp return NULL;
1133 9e672c74 2019-03-11 stsp const struct got_error *
1134 d7b899ab 2020-03-25 stsp got_ref_change_symref(struct got_reference *ref, const char *refname)
1136 b249b824 2019-05-09 stsp char *new_name;
1138 b249b824 2019-05-09 stsp if ((ref->flags & GOT_REF_IS_SYMBOLIC) == 0)
1139 b249b824 2019-05-09 stsp return got_error(GOT_ERR_BAD_REF_TYPE);
1141 b249b824 2019-05-09 stsp new_name = strdup(refname);
1142 b249b824 2019-05-09 stsp if (new_name == NULL)
1143 638f9024 2019-05-13 stsp return got_error_from_errno("strdup");
1145 d7b899ab 2020-03-25 stsp free(ref->ref.symref.ref);
1146 d7b899ab 2020-03-25 stsp ref->ref.symref.ref = new_name;
1147 b249b824 2019-05-09 stsp return NULL;
1150 b249b824 2019-05-09 stsp const struct got_error *
1151 e8a967e0 2020-03-21 stsp got_ref_change_symref_to_ref(struct got_reference *symref,
1152 e8a967e0 2020-03-21 stsp struct got_object_id *id)
1154 e8a967e0 2020-03-21 stsp if ((symref->flags & GOT_REF_IS_SYMBOLIC) == 0)
1155 e8a967e0 2020-03-21 stsp return got_error(GOT_ERR_BAD_REF_TYPE);
1157 e8a967e0 2020-03-21 stsp symref->ref.ref.name = symref->ref.symref.name;
1158 66107227 2023-01-31 thomas memcpy(&symref->ref.ref.id, id, sizeof(symref->ref.ref.id));
1159 e8a967e0 2020-03-21 stsp symref->flags &= ~GOT_REF_IS_SYMBOLIC;
1160 e8a967e0 2020-03-21 stsp return NULL;
1163 e8a967e0 2020-03-21 stsp const struct got_error *
1164 9e672c74 2019-03-11 stsp got_ref_write(struct got_reference *ref, struct got_repository *repo)
1166 9e672c74 2019-03-11 stsp const struct got_error *err = NULL, *unlock_err = NULL;
1167 9e672c74 2019-03-11 stsp const char *name = got_ref_get_name(ref);
1168 9e672c74 2019-03-11 stsp char *path_refs = NULL, *path = NULL, *tmppath = NULL;
1169 9e672c74 2019-03-11 stsp struct got_lockfile *lf = NULL;
1170 9e672c74 2019-03-11 stsp FILE *f = NULL;
1172 9e672c74 2019-03-11 stsp struct stat sb;
1174 9e672c74 2019-03-11 stsp path_refs = get_refs_dir_path(repo, name);
1175 9e672c74 2019-03-11 stsp if (path_refs == NULL) {
1176 638f9024 2019-05-13 stsp err = got_error_from_errno2("get_refs_dir_path", name);
1177 9e672c74 2019-03-11 stsp goto done;
1180 9e672c74 2019-03-11 stsp if (asprintf(&path, "%s/%s", path_refs, name) == -1) {
1181 638f9024 2019-05-13 stsp err = got_error_from_errno("asprintf");
1182 9e672c74 2019-03-11 stsp goto done;
1185 fc2a50f2 2022-11-01 thomas err = got_opentemp_named(&tmppath, &f, path, "");
1186 49c7094f 2019-03-11 stsp if (err) {
1187 d1667f0d 2019-03-11 stsp char *parent;
1188 49c7094f 2019-03-11 stsp if (!(err->code == GOT_ERR_ERRNO && errno == ENOENT))
1189 5e1c9f23 2019-03-11 stsp goto done;
1190 d1667f0d 2019-03-11 stsp err = got_path_dirname(&parent, path);
1192 0cd1c46a 2019-03-11 stsp goto done;
1193 0cd1c46a 2019-03-11 stsp err = got_path_mkdir(parent);
1194 5e1c9f23 2019-03-11 stsp free(parent);
1196 0cd1c46a 2019-03-11 stsp goto done;
1197 fc2a50f2 2022-11-01 thomas err = got_opentemp_named(&tmppath, &f, path, "");
1199 0cd1c46a 2019-03-11 stsp goto done;
1202 9e672c74 2019-03-11 stsp if (ref->flags & GOT_REF_IS_SYMBOLIC) {
1203 9e672c74 2019-03-11 stsp n = fprintf(f, "ref: %s\n", ref->ref.symref.ref);
1204 9e672c74 2019-03-11 stsp if (n != strlen(ref->ref.symref.ref) + 6) {
1205 9e672c74 2019-03-11 stsp err = got_ferror(f, GOT_ERR_IO);
1206 9e672c74 2019-03-11 stsp goto done;
1209 66107227 2023-01-31 thomas char *hex;
1210 66107227 2023-01-31 thomas size_t len;
1212 66107227 2023-01-31 thomas err = got_object_id_str(&hex, &ref->ref.ref.id);
1213 66107227 2023-01-31 thomas if (err)
1214 66107227 2023-01-31 thomas goto done;
1215 66107227 2023-01-31 thomas len = strlen(hex);
1216 9e672c74 2019-03-11 stsp n = fprintf(f, "%s\n", hex);
1217 66107227 2023-01-31 thomas free(hex);
1218 66107227 2023-01-31 thomas if (n != len + 1) {
1219 9e672c74 2019-03-11 stsp err = got_ferror(f, GOT_ERR_IO);
1220 9e672c74 2019-03-11 stsp goto done;
1224 2f17228e 2019-05-12 stsp if (ref->lf == NULL) {
1225 5345b4c7 2021-07-06 stsp err = got_lockfile_lock(&lf, path, -1);
1227 2f17228e 2019-05-12 stsp goto done;
1230 9e672c74 2019-03-11 stsp /* XXX: check if old content matches our expectations? */
1232 0cd1c46a 2019-03-11 stsp if (stat(path, &sb) != 0) {
1233 0cd1c46a 2019-03-11 stsp if (errno != ENOENT) {
1234 638f9024 2019-05-13 stsp err = got_error_from_errno2("stat", path);
1235 0cd1c46a 2019-03-11 stsp goto done;
1237 0cd1c46a 2019-03-11 stsp sb.st_mode = GOT_DEFAULT_FILE_MODE;
1240 3818e3c4 2020-11-01 naddy if (fchmod(fileno(f), sb.st_mode) != 0) {
1241 3818e3c4 2020-11-01 naddy err = got_error_from_errno2("fchmod", tmppath);
1242 3818e3c4 2020-11-01 naddy goto done;
1245 9e672c74 2019-03-11 stsp if (rename(tmppath, path) != 0) {
1246 638f9024 2019-05-13 stsp err = got_error_from_errno3("rename", tmppath, path);
1247 9e672c74 2019-03-11 stsp goto done;
1249 9e672c74 2019-03-11 stsp free(tmppath);
1250 9e672c74 2019-03-11 stsp tmppath = NULL;
1252 3f338f0a 2021-07-27 stsp if (stat(path, &sb) == -1) {
1253 3f338f0a 2021-07-27 stsp err = got_error_from_errno2("stat", path);
1254 3f338f0a 2021-07-27 stsp goto done;
1256 3f338f0a 2021-07-27 stsp ref->mtime = sb.st_mtime;
1258 2f17228e 2019-05-12 stsp if (ref->lf == NULL && lf)
1259 5345b4c7 2021-07-06 stsp unlock_err = got_lockfile_unlock(lf, -1);
1261 56b63ca4 2021-01-22 stsp if (fclose(f) == EOF && err == NULL)
1262 638f9024 2019-05-13 stsp err = got_error_from_errno("fclose");
1264 9e672c74 2019-03-11 stsp free(path_refs);
1265 9e672c74 2019-03-11 stsp free(path);
1266 9e672c74 2019-03-11 stsp if (tmppath) {
1267 e6b88e16 2022-10-16 thomas if (unlink(tmppath) == -1 && err == NULL)
1268 638f9024 2019-05-13 stsp err = got_error_from_errno2("unlink", tmppath);
1269 9e672c74 2019-03-11 stsp free(tmppath);
1271 2d2e1378 2019-03-11 stsp return err ? err : unlock_err;
1274 598a8b91 2019-03-15 stsp static const struct got_error *
1275 598a8b91 2019-03-15 stsp delete_packed_ref(struct got_reference *delref, struct got_repository *repo)
1277 598a8b91 2019-03-15 stsp const struct got_error *err = NULL, *unlock_err = NULL;
1278 598a8b91 2019-03-15 stsp struct got_lockfile *lf = NULL;
1279 598a8b91 2019-03-15 stsp FILE *f = NULL, *tmpf = NULL;
1280 9bdd68dd 2020-01-02 naddy char *line = NULL, *packed_refs_path, *tmppath = NULL;
1281 7a90b680 2020-01-02 naddy size_t linesize = 0;
1282 598a8b91 2019-03-15 stsp struct got_reflist_head refs;
1283 598a8b91 2019-03-15 stsp int found_delref = 0;
1285 598a8b91 2019-03-15 stsp /* The packed-refs file does not cotain symbolic references. */
1286 598a8b91 2019-03-15 stsp if (delref->flags & GOT_REF_IS_SYMBOLIC)
1287 598a8b91 2019-03-15 stsp return got_error(GOT_ERR_BAD_REF_DATA);
1289 d9dff0e5 2020-12-26 stsp TAILQ_INIT(&refs);
1291 598a8b91 2019-03-15 stsp packed_refs_path = got_repo_get_path_packed_refs(repo);
1292 598a8b91 2019-03-15 stsp if (packed_refs_path == NULL)
1293 638f9024 2019-05-13 stsp return got_error_from_errno("got_repo_get_path_packed_refs");
1295 fc2a50f2 2022-11-01 thomas err = got_opentemp_named(&tmppath, &tmpf, packed_refs_path, "");
1297 598a8b91 2019-03-15 stsp goto done;
1299 2f17228e 2019-05-12 stsp if (delref->lf == NULL) {
1300 5345b4c7 2021-07-06 stsp err = got_lockfile_lock(&lf, packed_refs_path, -1);
1302 2f17228e 2019-05-12 stsp goto done;
1305 c56c5d8a 2021-12-31 thomas f = fopen(packed_refs_path, "re");
1306 598a8b91 2019-03-15 stsp if (f == NULL) {
1307 638f9024 2019-05-13 stsp err = got_error_from_errno2("fopen", packed_refs_path);
1308 598a8b91 2019-03-15 stsp goto done;
1311 9bdd68dd 2020-01-02 naddy ssize_t linelen;
1312 598a8b91 2019-03-15 stsp struct got_reference *ref;
1313 598a8b91 2019-03-15 stsp struct got_reflist_entry *new;
1315 9bdd68dd 2020-01-02 naddy linelen = getline(&line, &linesize, f);
1316 9bdd68dd 2020-01-02 naddy if (linelen == -1) {
1317 598a8b91 2019-03-15 stsp if (feof(f))
1319 598a8b91 2019-03-15 stsp err = got_ferror(f, GOT_ERR_BAD_REF_DATA);
1320 598a8b91 2019-03-15 stsp goto done;
1322 9bdd68dd 2020-01-02 naddy if (linelen > 0 && line[linelen - 1] == '\n')
1323 9bdd68dd 2020-01-02 naddy line[linelen - 1] = '\0';
1324 3f338f0a 2021-07-27 stsp err = parse_packed_ref_line(&ref, NULL, line, 0);
1326 598a8b91 2019-03-15 stsp goto done;
1327 598a8b91 2019-03-15 stsp if (ref == NULL)
1330 598a8b91 2019-03-15 stsp if (strcmp(ref->ref.ref.name, delref->ref.ref.name) == 0 &&
1331 66107227 2023-01-31 thomas got_object_id_cmp(&ref->ref.ref.id,
1332 66107227 2023-01-31 thomas &delref->ref.ref.id) == 0) {
1333 598a8b91 2019-03-15 stsp found_delref = 1;
1334 598a8b91 2019-03-15 stsp got_ref_close(ref);
1338 72acb3d8 2021-08-06 stsp err = got_reflist_insert(&new, &refs, ref,
1339 b8bad2ba 2019-08-23 stsp got_ref_cmp_by_name, NULL);
1340 598a8b91 2019-03-15 stsp if (err || new == NULL /* duplicate */)
1341 598a8b91 2019-03-15 stsp got_ref_close(ref);
1343 598a8b91 2019-03-15 stsp goto done;
1346 598a8b91 2019-03-15 stsp if (found_delref) {
1347 598a8b91 2019-03-15 stsp struct got_reflist_entry *re;
1349 598a8b91 2019-03-15 stsp struct stat sb;
1351 598a8b91 2019-03-15 stsp n = fprintf(tmpf, "%s\n", GOT_PACKED_REFS_HEADER);
1352 598a8b91 2019-03-15 stsp if (n != sizeof(GOT_PACKED_REFS_HEADER)) {
1353 598a8b91 2019-03-15 stsp err = got_ferror(f, GOT_ERR_IO);
1354 598a8b91 2019-03-15 stsp goto done;
1357 d9dff0e5 2020-12-26 stsp TAILQ_FOREACH(re, &refs, entry) {
1358 66107227 2023-01-31 thomas char *hex;
1359 66107227 2023-01-31 thomas size_t len;
1361 66107227 2023-01-31 thomas err = got_object_id_str(&hex, &re->ref->ref.ref.id);
1362 66107227 2023-01-31 thomas if (err)
1363 598a8b91 2019-03-15 stsp goto done;
1364 66107227 2023-01-31 thomas len = strlen(hex);
1365 598a8b91 2019-03-15 stsp n = fprintf(tmpf, "%s ", hex);
1366 66107227 2023-01-31 thomas free(hex);
1367 66107227 2023-01-31 thomas if (n != len + 1) {
1368 598a8b91 2019-03-15 stsp err = got_ferror(f, GOT_ERR_IO);
1369 598a8b91 2019-03-15 stsp goto done;
1372 598a8b91 2019-03-15 stsp n = fprintf(tmpf, "%s\n", re->ref->ref.ref.name);
1373 598a8b91 2019-03-15 stsp if (n != strlen(re->ref->ref.ref.name) + 1) {
1374 598a8b91 2019-03-15 stsp err = got_ferror(f, GOT_ERR_IO);
1375 598a8b91 2019-03-15 stsp goto done;
1379 598a8b91 2019-03-15 stsp if (fflush(tmpf) != 0) {
1380 638f9024 2019-05-13 stsp err = got_error_from_errno("fflush");
1381 598a8b91 2019-03-15 stsp goto done;
1384 3818e3c4 2020-11-01 naddy if (fstat(fileno(f), &sb) != 0) {
1385 598a8b91 2019-03-15 stsp if (errno != ENOENT) {
1386 3818e3c4 2020-11-01 naddy err = got_error_from_errno2("fstat",
1387 230a42bd 2019-05-11 jcs packed_refs_path);
1388 598a8b91 2019-03-15 stsp goto done;
1390 598a8b91 2019-03-15 stsp sb.st_mode = GOT_DEFAULT_FILE_MODE;
1393 3818e3c4 2020-11-01 naddy if (fchmod(fileno(tmpf), sb.st_mode) != 0) {
1394 3818e3c4 2020-11-01 naddy err = got_error_from_errno2("fchmod", tmppath);
1395 598a8b91 2019-03-15 stsp goto done;
1398 3818e3c4 2020-11-01 naddy if (rename(tmppath, packed_refs_path) != 0) {
1399 3818e3c4 2020-11-01 naddy err = got_error_from_errno3("rename", tmppath,
1400 230a42bd 2019-05-11 jcs packed_refs_path);
1401 598a8b91 2019-03-15 stsp goto done;
1403 f96b13c8 2022-10-16 thomas free(tmppath);
1404 f96b13c8 2022-10-16 thomas tmppath = NULL;
1407 2f17228e 2019-05-12 stsp if (delref->lf == NULL && lf)
1408 5345b4c7 2021-07-06 stsp unlock_err = got_lockfile_unlock(lf, -1);
1410 56b63ca4 2021-01-22 stsp if (fclose(f) == EOF && err == NULL)
1411 638f9024 2019-05-13 stsp err = got_error_from_errno("fclose");
1413 f96b13c8 2022-10-16 thomas if (tmppath && unlink(tmppath) == -1 && err == NULL)
1414 f96b13c8 2022-10-16 thomas err = got_error_from_errno2("unlink", tmppath);
1415 f96b13c8 2022-10-16 thomas if (tmpf && fclose(tmpf) == EOF && err == NULL)
1416 f96b13c8 2022-10-16 thomas err = got_error_from_errno("fclose");
1417 598a8b91 2019-03-15 stsp free(tmppath);
1418 598a8b91 2019-03-15 stsp free(packed_refs_path);
1419 9bdd68dd 2020-01-02 naddy free(line);
1420 598a8b91 2019-03-15 stsp got_ref_list_free(&refs);
1421 598a8b91 2019-03-15 stsp return err ? err : unlock_err;
1424 2a104ff6 2020-09-21 stsp static const struct got_error *
1425 2a104ff6 2020-09-21 stsp delete_loose_ref(struct got_reference *ref, struct got_repository *repo)
1427 2d2e1378 2019-03-11 stsp const struct got_error *err = NULL, *unlock_err = NULL;
1428 2d2e1378 2019-03-11 stsp const char *name = got_ref_get_name(ref);
1429 2d2e1378 2019-03-11 stsp char *path_refs = NULL, *path = NULL;
1430 2d2e1378 2019-03-11 stsp struct got_lockfile *lf = NULL;
1432 2d2e1378 2019-03-11 stsp path_refs = get_refs_dir_path(repo, name);
1433 2d2e1378 2019-03-11 stsp if (path_refs == NULL) {
1434 638f9024 2019-05-13 stsp err = got_error_from_errno2("get_refs_dir_path", name);
1435 2d2e1378 2019-03-11 stsp goto done;
1438 2d2e1378 2019-03-11 stsp if (asprintf(&path, "%s/%s", path_refs, name) == -1) {
1439 638f9024 2019-05-13 stsp err = got_error_from_errno("asprintf");
1440 2d2e1378 2019-03-11 stsp goto done;
1443 2f17228e 2019-05-12 stsp if (ref->lf == NULL) {
1444 5345b4c7 2021-07-06 stsp err = got_lockfile_lock(&lf, path, -1);
1446 2f17228e 2019-05-12 stsp goto done;
1449 2d2e1378 2019-03-11 stsp /* XXX: check if old content matches our expectations? */
1451 e6b88e16 2022-10-16 thomas if (unlink(path) == -1)
1452 638f9024 2019-05-13 stsp err = got_error_from_errno2("unlink", path);
1454 2f17228e 2019-05-12 stsp if (ref->lf == NULL && lf)
1455 5345b4c7 2021-07-06 stsp unlock_err = got_lockfile_unlock(lf, -1);
1457 2d2e1378 2019-03-11 stsp free(path_refs);
1458 2d2e1378 2019-03-11 stsp free(path);
1459 9e672c74 2019-03-11 stsp return err ? err : unlock_err;
1462 2a104ff6 2020-09-21 stsp const struct got_error *
1463 2a104ff6 2020-09-21 stsp got_ref_delete(struct got_reference *ref, struct got_repository *repo)
1465 2a104ff6 2020-09-21 stsp const struct got_error *err = NULL;
1466 2a104ff6 2020-09-21 stsp struct got_reference *ref2;
1468 2a104ff6 2020-09-21 stsp if (ref->flags & GOT_REF_IS_PACKED) {
1469 2a104ff6 2020-09-21 stsp err = delete_packed_ref(ref, repo);
1471 2a104ff6 2020-09-21 stsp return err;
1473 a1c4175c 2020-09-22 stsp err = got_ref_open(&ref2, repo, got_ref_get_name(ref), 0);
1474 2a104ff6 2020-09-21 stsp if (err) {
1475 2a104ff6 2020-09-21 stsp if (err->code == GOT_ERR_NOT_REF)
1476 2a104ff6 2020-09-21 stsp return NULL;
1477 2a104ff6 2020-09-21 stsp return err;
1480 2a104ff6 2020-09-21 stsp err = delete_loose_ref(ref2, repo);
1481 2a104ff6 2020-09-21 stsp got_ref_close(ref2);
1482 2a104ff6 2020-09-21 stsp return err;
1484 2a104ff6 2020-09-21 stsp err = delete_loose_ref(ref, repo);
1486 2a104ff6 2020-09-21 stsp return err;
1488 a1c4175c 2020-09-22 stsp err = got_ref_open(&ref2, repo, got_ref_get_name(ref), 0);
1489 2a104ff6 2020-09-21 stsp if (err) {
1490 2a104ff6 2020-09-21 stsp if (err->code == GOT_ERR_NOT_REF)
1491 2a104ff6 2020-09-21 stsp return NULL;
1492 2a104ff6 2020-09-21 stsp return err;
1495 2a104ff6 2020-09-21 stsp err = delete_packed_ref(ref2, repo);
1496 2a104ff6 2020-09-21 stsp got_ref_close(ref2);
1497 2a104ff6 2020-09-21 stsp return err;
1501 2f17228e 2019-05-12 stsp const struct got_error *
1502 2f17228e 2019-05-12 stsp got_ref_unlock(struct got_reference *ref)
1504 2f17228e 2019-05-12 stsp const struct got_error *err;
1505 5345b4c7 2021-07-06 stsp err = got_lockfile_unlock(ref->lf, -1);
1506 2f17228e 2019-05-12 stsp ref->lf = NULL;
1507 2f17228e 2019-05-12 stsp return err;
1510 7b5b670e 2020-12-25 stsp struct got_reflist_object_id_map {
1511 7b5b670e 2020-12-25 stsp struct got_object_idset *idset;
1514 7b5b670e 2020-12-25 stsp struct got_reflist_object_id_map_entry {
1515 7b5b670e 2020-12-25 stsp struct got_reflist_head refs;
1518 24202e46 2020-12-26 stsp static const struct got_error *
1519 24202e46 2020-12-26 stsp add_object_id_map_entry(struct got_object_idset *idset,
1520 24202e46 2020-12-26 stsp struct got_object_id *id, struct got_reflist_entry *re)
1522 24202e46 2020-12-26 stsp const struct got_error *err = NULL;
1523 24202e46 2020-12-26 stsp struct got_reflist_object_id_map_entry *ent;
1524 24202e46 2020-12-26 stsp struct got_reflist_entry *new;
1526 24202e46 2020-12-26 stsp ent = got_object_idset_get(idset, id);
1527 24202e46 2020-12-26 stsp if (ent == NULL) {
1528 24202e46 2020-12-26 stsp ent = malloc(sizeof(*ent));
1529 24202e46 2020-12-26 stsp if (ent == NULL)
1530 24202e46 2020-12-26 stsp return got_error_from_errno("malloc");
1532 24202e46 2020-12-26 stsp TAILQ_INIT(&ent->refs);
1533 24202e46 2020-12-26 stsp err = got_object_idset_add(idset, id, ent);
1534 ee7b409c 2022-04-16 thomas if (err) {
1535 ee7b409c 2022-04-16 thomas free(ent);
1536 24202e46 2020-12-26 stsp return err;
1540 24202e46 2020-12-26 stsp err = got_reflist_entry_dup(&new, re);
1542 24202e46 2020-12-26 stsp return err;
1544 24202e46 2020-12-26 stsp TAILQ_INSERT_TAIL(&ent->refs, new, entry);
1545 24202e46 2020-12-26 stsp return NULL;
1548 7b5b670e 2020-12-25 stsp const struct got_error *
1549 7b5b670e 2020-12-25 stsp got_reflist_object_id_map_create(struct got_reflist_object_id_map **map,
1550 7b5b670e 2020-12-25 stsp struct got_reflist_head *refs, struct got_repository *repo)
1552 7b5b670e 2020-12-25 stsp const struct got_error *err = NULL;
1553 7b5b670e 2020-12-25 stsp struct got_object_idset *idset;
1554 7b5b670e 2020-12-25 stsp struct got_object_id *id = NULL;
1555 7b5b670e 2020-12-25 stsp struct got_reflist_entry *re;
1557 7b5b670e 2020-12-25 stsp idset = got_object_idset_alloc();
1558 7b5b670e 2020-12-25 stsp if (idset == NULL)
1559 7b5b670e 2020-12-25 stsp return got_error_from_errno("got_object_idset_alloc");
1561 7b5b670e 2020-12-25 stsp *map = malloc(sizeof(**map));
1562 7b5b670e 2020-12-25 stsp if (*map == NULL) {
1563 7b5b670e 2020-12-25 stsp got_object_idset_free(idset);
1564 7b5b670e 2020-12-25 stsp return got_error_from_errno("malloc");
1566 7b5b670e 2020-12-25 stsp (*map)->idset = idset;
1568 d9dff0e5 2020-12-26 stsp TAILQ_FOREACH(re, refs, entry) {
1569 24202e46 2020-12-26 stsp struct got_tag_object *tag = NULL;
1571 7b5b670e 2020-12-25 stsp err = got_ref_resolve(&id, repo, re->ref);
1573 7b5b670e 2020-12-25 stsp goto done;
1575 24202e46 2020-12-26 stsp err = add_object_id_map_entry(idset, id, re);
1577 24202e46 2020-12-26 stsp goto done;
1579 24202e46 2020-12-26 stsp if (strstr(got_ref_get_name(re->ref), "/tags/") == NULL) {
1581 24202e46 2020-12-26 stsp id = NULL;
1585 24202e46 2020-12-26 stsp err = got_object_open_as_tag(&tag, repo, id);
1586 24202e46 2020-12-26 stsp if (err) {
1587 24202e46 2020-12-26 stsp if (err->code != GOT_ERR_OBJ_TYPE)
1588 7b5b670e 2020-12-25 stsp goto done;
1589 24202e46 2020-12-26 stsp /* Ref points at something other than a tag. */
1590 24202e46 2020-12-26 stsp err = NULL;
1591 24202e46 2020-12-26 stsp tag = NULL;
1593 24202e46 2020-12-26 stsp id = NULL;
1597 24202e46 2020-12-26 stsp err = add_object_id_map_entry(idset,
1598 24202e46 2020-12-26 stsp got_object_tag_get_object_id(tag), re);
1599 f0ff8d4c 2020-12-26 stsp got_object_tag_close(tag);
1601 7b5b670e 2020-12-25 stsp goto done;
1604 7b5b670e 2020-12-25 stsp id = NULL;
1608 7b5b670e 2020-12-25 stsp if (err) {
1609 f193b038 2020-12-26 stsp got_reflist_object_id_map_free(*map);
1610 7b5b670e 2020-12-25 stsp *map = NULL;
1612 a53af95f 2020-12-26 stsp return err;
1615 7b5b670e 2020-12-25 stsp struct got_reflist_head *
1616 7b5b670e 2020-12-25 stsp got_reflist_object_id_map_lookup(struct got_reflist_object_id_map *map,
1617 7b5b670e 2020-12-25 stsp struct got_object_id *id)
1619 7b5b670e 2020-12-25 stsp struct got_reflist_object_id_map_entry *ent;
1620 7b5b670e 2020-12-25 stsp ent = got_object_idset_get(map->idset, id);
1622 7b5b670e 2020-12-25 stsp return &ent->refs;
1623 7b5b670e 2020-12-25 stsp return NULL;
1626 7b5b670e 2020-12-25 stsp static const struct got_error *
1627 7b5b670e 2020-12-25 stsp free_id_map_entry(struct got_object_id *id, void *data, void *arg)
1629 7b5b670e 2020-12-25 stsp struct got_reflist_object_id_map_entry *ent = data;
1631 7b5b670e 2020-12-25 stsp got_ref_list_free(&ent->refs);
1632 7b5b670e 2020-12-25 stsp free(ent);
1633 7b5b670e 2020-12-25 stsp return NULL;
1637 f193b038 2020-12-26 stsp got_reflist_object_id_map_free(struct got_reflist_object_id_map *map)
1639 7b5b670e 2020-12-25 stsp got_object_idset_for_each(map->idset, free_id_map_entry, NULL);
1640 7b5b670e 2020-12-25 stsp got_object_idset_free(map->idset);
1641 7b5b670e 2020-12-25 stsp free(map);
