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 5261c201 2018-04-01 stsp #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 <sha1.h>
25 e83f12a6 2023-02-12 op #include <sha2.h>
26 5261c201 2018-04-01 stsp #include <stdio.h>
27 5261c201 2018-04-01 stsp #include <stdlib.h>
28 5261c201 2018-04-01 stsp #include <string.h>
29 81a12da5 2020-09-09 naddy #include <unistd.h>
30 5261c201 2018-04-01 stsp #include <util.h>
31 5261c201 2018-04-01 stsp #include <zlib.h>
32 788c352e 2018-06-16 stsp #include <time.h>
33 0cd1c46a 2019-03-11 stsp #include <libgen.h>
35 5261c201 2018-04-01 stsp #include "got_error.h"
36 5261c201 2018-04-01 stsp #include "got_object.h"
37 5261c201 2018-04-01 stsp #include "got_repository.h"
38 5261c201 2018-04-01 stsp #include "got_reference.h"
39 9e672c74 2019-03-11 stsp #include "got_opentemp.h"
40 324d37e7 2019-05-11 stsp #include "got_path.h"
42 4123af3c 2023-02-12 op #include "got_lib_hash.h"
43 5261c201 2018-04-01 stsp #include "got_lib_delta.h"
44 63581804 2018-07-09 stsp #include "got_lib_inflate.h"
45 5261c201 2018-04-01 stsp #include "got_lib_object.h"
46 7b5b670e 2020-12-25 stsp #include "got_lib_object_idset.h"
47 f77a24b0 2019-03-11 stsp #include "got_lib_lockfile.h"
49 fb79db15 2019-02-01 stsp #ifndef nitems
50 fb79db15 2019-02-01 stsp #define nitems(_a) (sizeof(_a) / sizeof((_a)[0]))
53 d1f2edc9 2018-06-13 stsp #define GOT_REF_HEADS "heads"
54 d1f2edc9 2018-06-13 stsp #define GOT_REF_TAGS "tags"
55 d1f2edc9 2018-06-13 stsp #define GOT_REF_REMOTES "remotes"
58 598a8b91 2019-03-15 stsp * We do not resolve tags yet, and don't yet care about sorting refs either,
59 598a8b91 2019-03-15 stsp * so packed-refs files we write contain a minimal header which disables all
60 598a8b91 2019-03-15 stsp * packed-refs "traits" supported by Git.
62 598a8b91 2019-03-15 stsp #define GOT_PACKED_REFS_HEADER "# pack-refs with:"
64 5261c201 2018-04-01 stsp /* A symbolic reference. */
65 5261c201 2018-04-01 stsp struct got_symref {
70 29e86f7a 2019-08-12 stsp #define GOT_REF_RECURSE_MAX 20
72 5261c201 2018-04-01 stsp /* A non-symbolic reference (there is no better designation). */
73 5261c201 2018-04-01 stsp struct got_ref {
75 faf5b56f 2023-01-31 op struct got_object_id id;
78 5261c201 2018-04-01 stsp /* A reference which points to an arbitrary object. */
79 5261c201 2018-04-01 stsp struct got_reference {
80 5261c201 2018-04-01 stsp unsigned int flags;
81 5261c201 2018-04-01 stsp #define GOT_REF_IS_SYMBOLIC 0x01
82 f9267c9a 2019-03-15 stsp #define GOT_REF_IS_PACKED 0x02
85 5261c201 2018-04-01 stsp struct got_ref ref;
86 5261c201 2018-04-01 stsp struct got_symref symref;
89 2f17228e 2019-05-12 stsp struct got_lockfile *lf;
90 3f338f0a 2021-07-27 stsp time_t mtime;
92 2c9e323b 2021-10-10 stsp /* Cached timestamp for got_ref_cmp_by_commit_timestamp_descending() */
93 2c9e323b 2021-10-10 stsp time_t committer_time;
96 5261c201 2018-04-01 stsp static const struct got_error *
97 f9267c9a 2019-03-15 stsp alloc_ref(struct got_reference **ref, const char *name,
98 3f338f0a 2021-07-27 stsp struct got_object_id *id, int flags, time_t mtime)
100 f9267c9a 2019-03-15 stsp const struct got_error *err = NULL;
102 f9267c9a 2019-03-15 stsp *ref = calloc(1, sizeof(**ref));
103 f9267c9a 2019-03-15 stsp if (*ref == NULL)
104 638f9024 2019-05-13 stsp return got_error_from_errno("calloc");
106 faf5b56f 2023-01-31 op memcpy(&(*ref)->ref.ref.id, id, sizeof((*ref)->ref.ref.id));
107 c980e470 2019-03-15 stsp (*ref)->flags = flags;
108 f9267c9a 2019-03-15 stsp (*ref)->ref.ref.name = strdup(name);
109 3f338f0a 2021-07-27 stsp (*ref)->mtime = mtime;
110 f9267c9a 2019-03-15 stsp if ((*ref)->ref.ref.name == NULL) {
111 638f9024 2019-05-13 stsp err = got_error_from_errno("strdup");
112 c980e470 2019-03-15 stsp got_ref_close(*ref);
113 f9267c9a 2019-03-15 stsp *ref = NULL;
115 f9267c9a 2019-03-15 stsp return err;
118 f9267c9a 2019-03-15 stsp static const struct got_error *
119 f9267c9a 2019-03-15 stsp alloc_symref(struct got_reference **ref, const char *name,
120 f9267c9a 2019-03-15 stsp const char *target_ref, int flags)
122 f9267c9a 2019-03-15 stsp const struct got_error *err = NULL;
124 5261c201 2018-04-01 stsp *ref = calloc(1, sizeof(**ref));
125 5261c201 2018-04-01 stsp if (*ref == NULL)
126 638f9024 2019-05-13 stsp return got_error_from_errno("calloc");
128 f9267c9a 2019-03-15 stsp (*ref)->flags = GOT_REF_IS_SYMBOLIC | flags;
129 f9267c9a 2019-03-15 stsp (*ref)->ref.symref.name = strdup(name);
130 f9267c9a 2019-03-15 stsp if ((*ref)->ref.symref.name == NULL) {
131 638f9024 2019-05-13 stsp err = got_error_from_errno("strdup");
132 f9267c9a 2019-03-15 stsp got_ref_close(*ref);
133 f9267c9a 2019-03-15 stsp *ref = NULL;
134 cdb8f1fa 2019-08-28 hiltjo return err;
136 f9267c9a 2019-03-15 stsp (*ref)->ref.symref.ref = strdup(target_ref);
137 f9267c9a 2019-03-15 stsp if ((*ref)->ref.symref.ref == NULL) {
138 638f9024 2019-05-13 stsp err = got_error_from_errno("strdup");
139 f9267c9a 2019-03-15 stsp got_ref_close(*ref);
140 f9267c9a 2019-03-15 stsp *ref = NULL;
142 f9267c9a 2019-03-15 stsp return err;
145 5261c201 2018-04-01 stsp static const struct got_error *
146 f9267c9a 2019-03-15 stsp parse_symref(struct got_reference **ref, const char *name, const char *line)
148 f9267c9a 2019-03-15 stsp if (line[0] == '\0')
149 f9267c9a 2019-03-15 stsp return got_error(GOT_ERR_BAD_REF_DATA);
151 f9267c9a 2019-03-15 stsp return alloc_symref(ref, name, line, 0);
154 f9267c9a 2019-03-15 stsp static const struct got_error *
155 3f338f0a 2021-07-27 stsp parse_ref_line(struct got_reference **ref, const char *name, const char *line,
156 95b631b2 2023-02-12 op time_t mtime, enum got_hash_algorithm algo)
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 2d9874c2 2023-02-12 op memset(&id, 0, sizeof(id));
166 2d9874c2 2023-02-12 op id.algo = algo;
167 a41a7d4a 2023-02-12 op if (!got_parse_hash_digest(id.hash, line, algo))
168 30c0868d 2019-02-03 stsp return got_error(GOT_ERR_BAD_REF_DATA);
170 3f338f0a 2021-07-27 stsp return alloc_ref(ref, name, &id, 0, mtime);
173 5261c201 2018-04-01 stsp static const struct got_error *
174 5261c201 2018-04-01 stsp parse_ref_file(struct got_reference **ref, const char *name,
175 95b631b2 2023-02-12 op const char *absname, const char *abspath, int lock,
176 95b631b2 2023-02-12 op enum got_hash_algorithm algo)
178 5261c201 2018-04-01 stsp const struct got_error *err = NULL;
180 c30018ad 2019-10-21 stsp char *line = NULL;
181 c30018ad 2019-10-21 stsp size_t linesize = 0;
182 c30018ad 2019-10-21 stsp ssize_t linelen;
183 2f17228e 2019-05-12 stsp struct got_lockfile *lf = NULL;
184 3f338f0a 2021-07-27 stsp struct stat sb;
186 2f17228e 2019-05-12 stsp if (lock) {
187 5345b4c7 2021-07-06 stsp err = got_lockfile_lock(&lf, abspath, -1);
189 9f142382 2020-03-21 stsp if (err->code == GOT_ERR_ERRNO && errno == ENOENT)
190 b2070a3f 2020-03-22 stsp err = got_error_not_ref(name);
191 9f142382 2020-03-21 stsp return err;
195 00fe21f2 2021-12-31 stsp f = fopen(abspath, "rbe");
196 f5c58ad1 2019-05-12 stsp if (f == NULL) {
197 b2070a3f 2020-03-22 stsp if (errno != ENOTDIR && errno != ENOENT)
198 b2070a3f 2020-03-22 stsp err = got_error_from_errno2("fopen", abspath);
200 b2070a3f 2020-03-22 stsp err = got_error_not_ref(name);
202 5345b4c7 2021-07-06 stsp got_lockfile_unlock(lf, -1);
203 b2070a3f 2020-03-22 stsp return err;
205 3f338f0a 2021-07-27 stsp if (fstat(fileno(f), &sb) == -1) {
206 3f338f0a 2021-07-27 stsp err = got_error_from_errno2("fstat", abspath);
210 c30018ad 2019-10-21 stsp linelen = getline(&line, &linesize, f);
211 c30018ad 2019-10-21 stsp if (linelen == -1) {
212 c30018ad 2019-10-21 stsp if (feof(f))
213 c30018ad 2019-10-21 stsp err = NULL; /* ignore empty files (could be locks) */
215 b2070a3f 2020-03-22 stsp if (errno == EISDIR)
216 b2070a3f 2020-03-22 stsp err = got_error(GOT_ERR_NOT_REF);
217 b2070a3f 2020-03-22 stsp else if (ferror(f))
218 b2070a3f 2020-03-22 stsp err = got_ferror(f, GOT_ERR_IO);
220 b2070a3f 2020-03-22 stsp err = got_error_from_errno2("getline", abspath);
223 5345b4c7 2021-07-06 stsp got_lockfile_unlock(lf, -1);
226 c30018ad 2019-10-21 stsp while (linelen > 0 && line[linelen - 1] == '\n') {
227 c30018ad 2019-10-21 stsp line[linelen - 1] = '\0';
231 95b631b2 2023-02-12 op err = parse_ref_line(ref, absname, line, sb.st_mtime, algo);
232 f5c58ad1 2019-05-12 stsp if (lock) {
234 5345b4c7 2021-07-06 stsp got_lockfile_unlock(lf, -1);
237 f5c58ad1 2019-05-12 stsp (*ref)->lf = lf;
239 5345b4c7 2021-07-06 stsp got_lockfile_unlock(lf, -1);
243 5261c201 2018-04-01 stsp free(line);
244 56b63ca4 2021-01-22 stsp if (fclose(f) == EOF && err == NULL) {
245 638f9024 2019-05-13 stsp err = got_error_from_errno("fclose");
246 2f17228e 2019-05-12 stsp if (*ref) {
248 f5c58ad1 2019-05-12 stsp got_ref_unlock(*ref);
249 2f17228e 2019-05-12 stsp got_ref_close(*ref);
250 2f17228e 2019-05-12 stsp *ref = NULL;
253 5261c201 2018-04-01 stsp return err;
257 c5f754cc 2019-02-01 stsp is_well_known_ref(const char *refname)
259 c5f754cc 2019-02-01 stsp return (strcmp(refname, GOT_REF_HEAD) == 0 ||
260 5261c201 2018-04-01 stsp strcmp(refname, GOT_REF_ORIG_HEAD) == 0 ||
261 5261c201 2018-04-01 stsp strcmp(refname, GOT_REF_MERGE_HEAD) == 0 ||
262 c5f754cc 2019-02-01 stsp strcmp(refname, GOT_REF_FETCH_HEAD) == 0);
265 c5f754cc 2019-02-01 stsp static char *
266 c5f754cc 2019-02-01 stsp get_refs_dir_path(struct got_repository *repo, const char *refname)
268 c5f754cc 2019-02-01 stsp if (is_well_known_ref(refname) || strncmp(refname, "refs/", 5) == 0)
269 6e9da951 2019-01-06 stsp return strdup(got_repo_get_path_git_dir(repo));
271 5261c201 2018-04-01 stsp return got_repo_get_path_refs(repo);
274 5892cdd6 2019-03-10 stsp const struct got_error *
275 5892cdd6 2019-03-10 stsp got_ref_alloc(struct got_reference **ref, const char *name,
276 5892cdd6 2019-03-10 stsp struct got_object_id *id)
278 63e5aa5c 2021-08-23 stsp if (!got_ref_name_is_valid(name))
279 24b5452a 2019-10-09 stsp return got_error_path(name, GOT_ERR_BAD_REF_NAME);
281 3f338f0a 2021-07-27 stsp return alloc_ref(ref, name, id, 0, 0);
284 aaf88317 2019-07-10 stsp const struct got_error *
285 aaf88317 2019-07-10 stsp got_ref_alloc_symref(struct got_reference **ref, const char *name,
286 aaf88317 2019-07-10 stsp struct got_reference *target_ref)
288 63e5aa5c 2021-08-23 stsp if (!got_ref_name_is_valid(name))
289 24b5452a 2019-10-09 stsp return got_error_path(name, GOT_ERR_BAD_REF_NAME);
291 aaf88317 2019-07-10 stsp return alloc_symref(ref, name, got_ref_get_name(target_ref), 0);
294 d1f2edc9 2018-06-13 stsp static const struct got_error *
295 fb79db15 2019-02-01 stsp parse_packed_ref_line(struct got_reference **ref, const char *abs_refname,
296 95b631b2 2023-02-12 op const char *line, time_t mtime, enum got_hash_algorithm algo)
298 5892cdd6 2019-03-10 stsp struct got_object_id id;
299 5892cdd6 2019-03-10 stsp const char *name;
301 fb79db15 2019-02-01 stsp *ref = NULL;
303 532920c8 2019-02-01 stsp if (line[0] == '#' || line[0] == '^')
304 fb79db15 2019-02-01 stsp return NULL;
306 2d9874c2 2023-02-12 op memset(&id, 0, sizeof(id));
307 2d9874c2 2023-02-12 op id.algo = algo;
308 a41a7d4a 2023-02-12 op if (!got_parse_hash_digest(id.hash, line, algo))
309 30c0868d 2019-02-03 stsp return got_error(GOT_ERR_BAD_REF_DATA);
311 199a4027 2019-02-02 stsp if (abs_refname) {
312 199a4027 2019-02-02 stsp if (strcmp(line + SHA1_DIGEST_STRING_LENGTH, abs_refname) != 0)
313 199a4027 2019-02-02 stsp return NULL;
314 5892cdd6 2019-03-10 stsp name = abs_refname;
316 5892cdd6 2019-03-10 stsp name = line + SHA1_DIGEST_STRING_LENGTH;
318 3f338f0a 2021-07-27 stsp return alloc_ref(ref, name, &id, GOT_REF_IS_PACKED, mtime);
321 fb79db15 2019-02-01 stsp static const struct got_error *
322 0dec1cc0 2019-02-01 stsp open_packed_ref(struct got_reference **ref, FILE *f, const char **subdirs,
323 95b631b2 2023-02-12 op int nsubdirs, const char *refname, time_t mtime,
324 95b631b2 2023-02-12 op enum got_hash_algorithm algo)
326 fb79db15 2019-02-01 stsp const struct got_error *err = NULL;
327 fb79db15 2019-02-01 stsp char *abs_refname;
328 9bdd68dd 2020-01-02 naddy char *line = NULL;
329 9bdd68dd 2020-01-02 naddy size_t linesize = 0;
330 9bdd68dd 2020-01-02 naddy ssize_t linelen;
331 0dec1cc0 2019-02-01 stsp int i, ref_is_absolute = (strncmp(refname, "refs/", 5) == 0);
333 1e37702e 2019-02-04 stsp *ref = NULL;
335 0dec1cc0 2019-02-01 stsp if (ref_is_absolute)
336 0dec1cc0 2019-02-01 stsp abs_refname = (char *)refname;
338 9bdd68dd 2020-01-02 naddy linelen = getline(&line, &linesize, f);
339 9bdd68dd 2020-01-02 naddy if (linelen == -1) {
340 7ab0422a 2019-03-15 stsp if (feof(f))
342 7ab0422a 2019-03-15 stsp err = got_ferror(f, GOT_ERR_BAD_REF_DATA);
345 9bdd68dd 2020-01-02 naddy if (linelen > 0 && line[linelen - 1] == '\n')
346 9bdd68dd 2020-01-02 naddy line[linelen - 1] = '\0';
347 0dec1cc0 2019-02-01 stsp for (i = 0; i < nsubdirs; i++) {
348 0dec1cc0 2019-02-01 stsp if (!ref_is_absolute &&
349 0dec1cc0 2019-02-01 stsp asprintf(&abs_refname, "refs/%s/%s", subdirs[i],
350 0dec1cc0 2019-02-01 stsp refname) == -1)
351 638f9024 2019-05-13 stsp return got_error_from_errno("asprintf");
352 3f338f0a 2021-07-27 stsp err = parse_packed_ref_line(ref, abs_refname, line,
353 95b631b2 2023-02-12 op mtime, algo);
354 0dec1cc0 2019-02-01 stsp if (!ref_is_absolute)
355 0dec1cc0 2019-02-01 stsp free(abs_refname);
356 532920c8 2019-02-01 stsp if (err || *ref != NULL)
361 fb79db15 2019-02-01 stsp } while (*ref == NULL);
362 9bdd68dd 2020-01-02 naddy free(line);
364 fb79db15 2019-02-01 stsp return err;
367 fb79db15 2019-02-01 stsp static const struct got_error *
368 d1f2edc9 2018-06-13 stsp open_ref(struct got_reference **ref, const char *path_refs, const char *subdir,
369 95b631b2 2023-02-12 op const char *name, int lock, enum got_hash_algorithm algo)
371 d1f2edc9 2018-06-13 stsp const struct got_error *err = NULL;
372 a04f49d2 2019-02-04 stsp char *path = NULL;
373 a04f49d2 2019-02-04 stsp char *absname = NULL;
374 a04f49d2 2019-02-04 stsp int ref_is_absolute = (strncmp(name, "refs/", 5) == 0);
375 75236079 2020-03-25 stsp int ref_is_well_known = (subdir[0] == '\0' && is_well_known_ref(name));
377 1e37702e 2019-02-04 stsp *ref = NULL;
379 63e5aa5c 2021-08-23 stsp if (!got_ref_name_is_valid(name))
380 57c18198 2021-05-24 stsp return got_error_path(name, GOT_ERR_BAD_REF_NAME);
382 a04f49d2 2019-02-04 stsp if (ref_is_absolute || ref_is_well_known) {
383 a04f49d2 2019-02-04 stsp if (asprintf(&path, "%s/%s", path_refs, name) == -1)
384 638f9024 2019-05-13 stsp return got_error_from_errno("asprintf");
385 a04f49d2 2019-02-04 stsp absname = (char *)name;
387 58908ed0 2019-03-11 stsp if (asprintf(&path, "%s/%s%s%s", path_refs, subdir,
388 58908ed0 2019-03-11 stsp subdir[0] ? "/" : "", name) == -1)
389 638f9024 2019-05-13 stsp return got_error_from_errno("asprintf");
391 58908ed0 2019-03-11 stsp if (asprintf(&absname, "refs/%s%s%s",
392 58908ed0 2019-03-11 stsp subdir, subdir[0] ? "/" : "", name) == -1) {
393 638f9024 2019-05-13 stsp err = got_error_from_errno("asprintf");
398 95b631b2 2023-02-12 op err = parse_ref_file(ref, name, absname, path, lock, algo);
400 a04f49d2 2019-02-04 stsp if (!ref_is_absolute && !ref_is_well_known)
401 a04f49d2 2019-02-04 stsp free(absname);
402 a04f49d2 2019-02-04 stsp free(path);
403 d1f2edc9 2018-06-13 stsp return err;
406 5261c201 2018-04-01 stsp const struct got_error *
407 5261c201 2018-04-01 stsp got_ref_open(struct got_reference **ref, struct got_repository *repo,
408 abc59930 2021-09-05 naddy const char *refname, int lock)
410 5261c201 2018-04-01 stsp const struct got_error *err = NULL;
411 c3821bef 2022-07-21 florian char *packed_refs_path = NULL, *path_refs = NULL;
412 fb79db15 2019-02-01 stsp const char *subdirs[] = {
413 fb79db15 2019-02-01 stsp GOT_REF_HEADS, GOT_REF_TAGS, GOT_REF_REMOTES
416 16aeacf7 2020-11-26 stsp int well_known = is_well_known_ref(refname);
417 a875589a 2019-05-12 stsp struct got_lockfile *lf = NULL;
419 1e37702e 2019-02-04 stsp *ref = NULL;
421 e135804e 2019-02-10 stsp path_refs = get_refs_dir_path(repo, refname);
422 e135804e 2019-02-10 stsp if (path_refs == NULL) {
423 638f9024 2019-05-13 stsp err = got_error_from_errno2("get_refs_dir_path", refname);
427 0885ce8f 2019-05-12 stsp if (well_known) {
428 95b631b2 2023-02-12 op err = open_ref(ref, path_refs, "", refname, lock,
429 95b631b2 2023-02-12 op got_repo_get_object_format(repo));
433 e135804e 2019-02-10 stsp /* Search on-disk refs before packed refs! */
434 e135804e 2019-02-10 stsp for (i = 0; i < nitems(subdirs); i++) {
435 2f17228e 2019-05-12 stsp err = open_ref(ref, path_refs, subdirs[i], refname,
436 95b631b2 2023-02-12 op lock, got_repo_get_object_format(repo));
437 b2070a3f 2020-03-22 stsp if ((err && err->code != GOT_ERR_NOT_REF) || *ref)
441 c5f754cc 2019-02-01 stsp packed_refs_path = got_repo_get_path_packed_refs(repo);
442 e135804e 2019-02-10 stsp if (packed_refs_path == NULL) {
443 638f9024 2019-05-13 stsp err = got_error_from_errno(
444 230a42bd 2019-05-11 jcs "got_repo_get_path_packed_refs");
448 2f17228e 2019-05-12 stsp if (lock) {
449 5345b4c7 2021-07-06 stsp err = got_lockfile_lock(&lf, packed_refs_path, -1);
453 00fe21f2 2021-12-31 stsp f = fopen(packed_refs_path, "rbe");
454 c5f754cc 2019-02-01 stsp if (f != NULL) {
455 3f338f0a 2021-07-27 stsp struct stat sb;
456 3f338f0a 2021-07-27 stsp if (fstat(fileno(f), &sb) == -1) {
457 3f338f0a 2021-07-27 stsp err = got_error_from_errno2("fstat",
458 3f338f0a 2021-07-27 stsp packed_refs_path);
461 0dec1cc0 2019-02-01 stsp err = open_packed_ref(ref, f, subdirs, nitems(subdirs),
462 95b631b2 2023-02-12 op refname, sb.st_mtime,
463 95b631b2 2023-02-12 op got_repo_get_object_format(repo));
464 a875589a 2019-05-12 stsp if (!err) {
465 56b63ca4 2021-01-22 stsp if (fclose(f) == EOF) {
466 638f9024 2019-05-13 stsp err = got_error_from_errno("fclose");
467 a875589a 2019-05-12 stsp got_ref_close(*ref);
468 a875589a 2019-05-12 stsp *ref = NULL;
469 6e472abb 2019-05-13 stsp } else if (*ref)
470 a875589a 2019-05-12 stsp (*ref)->lf = lf;
475 5b575c25 2019-05-12 stsp if (!err && *ref == NULL)
476 1e37702e 2019-02-04 stsp err = got_error_not_ref(refname);
477 a875589a 2019-05-12 stsp if (err && lf)
478 5345b4c7 2021-07-06 stsp got_lockfile_unlock(lf, -1);
479 c3821bef 2022-07-21 florian free(packed_refs_path);
480 5261c201 2018-04-01 stsp free(path_refs);
481 5261c201 2018-04-01 stsp return err;
485 5261c201 2018-04-01 stsp got_ref_close(struct got_reference *ref)
487 e09d28b1 2019-03-15 stsp if (ref->flags & GOT_REF_IS_SYMBOLIC) {
488 5261c201 2018-04-01 stsp free(ref->ref.symref.name);
489 e09d28b1 2019-03-15 stsp free(ref->ref.symref.ref);
491 5261c201 2018-04-01 stsp free(ref->ref.ref.name);
495 5261c201 2018-04-01 stsp struct got_reference *
496 5261c201 2018-04-01 stsp got_ref_dup(struct got_reference *ref)
498 5261c201 2018-04-01 stsp struct got_reference *ret;
500 5261c201 2018-04-01 stsp ret = calloc(1, sizeof(*ret));
501 5261c201 2018-04-01 stsp if (ret == NULL)
502 5261c201 2018-04-01 stsp return NULL;
504 5261c201 2018-04-01 stsp ret->flags = ref->flags;
505 5261c201 2018-04-01 stsp if (ref->flags & GOT_REF_IS_SYMBOLIC) {
506 5261c201 2018-04-01 stsp ret->ref.symref.name = strdup(ref->ref.symref.name);
507 5261c201 2018-04-01 stsp if (ret->ref.symref.name == NULL) {
509 5261c201 2018-04-01 stsp return NULL;
511 5261c201 2018-04-01 stsp ret->ref.symref.ref = strdup(ref->ref.symref.ref);
512 5261c201 2018-04-01 stsp if (ret->ref.symref.ref == NULL) {
513 5261c201 2018-04-01 stsp free(ret->ref.symref.name);
515 5261c201 2018-04-01 stsp return NULL;
518 4c4ce67b 2020-12-25 stsp ret->ref.ref.name = strdup(ref->ref.ref.name);
519 4c4ce67b 2020-12-25 stsp if (ret->ref.ref.name == NULL) {
521 5261c201 2018-04-01 stsp return NULL;
523 faf5b56f 2023-01-31 op memcpy(&ret->ref.ref.id, &ref->ref.ref.id,
524 faf5b56f 2023-01-31 op sizeof(ret->ref.ref.id));
527 5261c201 2018-04-01 stsp return ret;
530 b8bad2ba 2019-08-23 stsp const struct got_error *
531 b8bad2ba 2019-08-23 stsp got_reflist_entry_dup(struct got_reflist_entry **newp,
532 b8bad2ba 2019-08-23 stsp struct got_reflist_entry *re)
534 b8bad2ba 2019-08-23 stsp const struct got_error *err = NULL;
535 b8bad2ba 2019-08-23 stsp struct got_reflist_entry *new;
537 b8bad2ba 2019-08-23 stsp *newp = NULL;
539 b8bad2ba 2019-08-23 stsp new = malloc(sizeof(*new));
540 b8bad2ba 2019-08-23 stsp if (new == NULL)
541 b8bad2ba 2019-08-23 stsp return got_error_from_errno("malloc");
543 b8bad2ba 2019-08-23 stsp new->ref = got_ref_dup(re->ref);
544 b8bad2ba 2019-08-23 stsp if (new->ref == NULL) {
545 b8bad2ba 2019-08-23 stsp err = got_error_from_errno("got_ref_dup");
547 b8bad2ba 2019-08-23 stsp return err;
550 b8bad2ba 2019-08-23 stsp *newp = new;
551 b8bad2ba 2019-08-23 stsp return NULL;
554 cce2f485 2021-08-22 stsp const struct got_error *
555 cce2f485 2021-08-22 stsp got_ref_resolve_symbolic(struct got_reference **resolved,
556 5261c201 2018-04-01 stsp struct got_repository *repo, struct got_reference *ref)
558 5261c201 2018-04-01 stsp struct got_reference *nextref;
559 5261c201 2018-04-01 stsp const struct got_error *err;
561 2f17228e 2019-05-12 stsp err = got_ref_open(&nextref, repo, ref->ref.symref.ref, 0);
563 5261c201 2018-04-01 stsp return err;
565 5261c201 2018-04-01 stsp if (nextref->flags & GOT_REF_IS_SYMBOLIC)
566 cce2f485 2021-08-22 stsp err = got_ref_resolve_symbolic(resolved, repo, nextref);
568 5261c201 2018-04-01 stsp *resolved = got_ref_dup(nextref);
570 5261c201 2018-04-01 stsp got_ref_close(nextref);
571 5261c201 2018-04-01 stsp return err;
574 29e86f7a 2019-08-12 stsp static const struct got_error *
575 29e86f7a 2019-08-12 stsp ref_resolve(struct got_object_id **id, struct got_repository *repo,
576 29e86f7a 2019-08-12 stsp struct got_reference *ref, int recursion)
578 5261c201 2018-04-01 stsp const struct got_error *err;
580 29e86f7a 2019-08-12 stsp if (recursion <= 0)
581 29e86f7a 2019-08-12 stsp return got_error_msg(GOT_ERR_RECURSION,
582 29e86f7a 2019-08-12 stsp "reference recursion limit reached");
584 5261c201 2018-04-01 stsp if (ref->flags & GOT_REF_IS_SYMBOLIC) {
585 5261c201 2018-04-01 stsp struct got_reference *resolved = NULL;
586 cce2f485 2021-08-22 stsp err = got_ref_resolve_symbolic(&resolved, repo, ref);
587 5261c201 2018-04-01 stsp if (err == NULL)
588 29e86f7a 2019-08-12 stsp err = ref_resolve(id, repo, resolved, --recursion);
589 57b6f99a 2019-04-13 stsp if (resolved)
590 57b6f99a 2019-04-13 stsp got_ref_close(resolved);
591 5261c201 2018-04-01 stsp return err;
594 5261c201 2018-04-01 stsp *id = calloc(1, sizeof(**id));
595 5261c201 2018-04-01 stsp if (*id == NULL)
596 638f9024 2019-05-13 stsp return got_error_from_errno("calloc");
597 faf5b56f 2023-01-31 op memcpy(*id, &ref->ref.ref.id, sizeof(**id));
599 5261c201 2018-04-01 stsp return NULL;
602 29e86f7a 2019-08-12 stsp const struct got_error *
603 29e86f7a 2019-08-12 stsp got_ref_resolve(struct got_object_id **id, struct got_repository *repo,
604 29e86f7a 2019-08-12 stsp struct got_reference *ref)
606 29e86f7a 2019-08-12 stsp return ref_resolve(id, repo, ref, GOT_REF_RECURSE_MAX);
610 5261c201 2018-04-01 stsp got_ref_to_str(struct got_reference *ref)
614 271d2a38 2018-12-25 stsp if (ref->flags & GOT_REF_IS_SYMBOLIC)
615 271d2a38 2018-12-25 stsp return strdup(ref->ref.symref.ref);
617 faf5b56f 2023-01-31 op if (got_object_id_str(&str, &ref->ref.ref.id) != NULL)
618 271d2a38 2018-12-25 stsp return NULL;
620 5261c201 2018-04-01 stsp return str;
623 0bd18d37 2019-02-01 stsp const char *
624 0bd18d37 2019-02-01 stsp got_ref_get_name(struct got_reference *ref)
626 0bd18d37 2019-02-01 stsp if (ref->flags & GOT_REF_IS_SYMBOLIC)
627 0bd18d37 2019-02-01 stsp return ref->ref.symref.name;
629 0bd18d37 2019-02-01 stsp return ref->ref.ref.name;
632 aaf88317 2019-07-10 stsp const char *
633 aaf88317 2019-07-10 stsp got_ref_get_symref_target(struct got_reference *ref)
635 aaf88317 2019-07-10 stsp if (ref->flags & GOT_REF_IS_SYMBOLIC)
636 aaf88317 2019-07-10 stsp return ref->ref.symref.ref;
638 b8bad2ba 2019-08-23 stsp return NULL;
642 3f338f0a 2021-07-27 stsp got_ref_get_mtime(struct got_reference *ref)
644 3f338f0a 2021-07-27 stsp return ref->mtime;
647 b8bad2ba 2019-08-23 stsp const struct got_error *
648 b8bad2ba 2019-08-23 stsp got_ref_cmp_by_name(void *arg, int *cmp, struct got_reference *re1,
649 b8bad2ba 2019-08-23 stsp struct got_reference* re2)
651 b8bad2ba 2019-08-23 stsp const char *name1 = got_ref_get_name(re1);
652 b8bad2ba 2019-08-23 stsp const char *name2 = got_ref_get_name(re2);
654 b8bad2ba 2019-08-23 stsp *cmp = got_path_cmp(name1, name2, strlen(name1), strlen(name2));
655 aaf88317 2019-07-10 stsp return NULL;
658 d1f16636 2020-01-15 stsp const struct got_error *
659 d1f16636 2020-01-15 stsp got_ref_cmp_tags(void *arg, int *cmp, struct got_reference *ref1,
660 d1f16636 2020-01-15 stsp struct got_reference *ref2)
662 d1f16636 2020-01-15 stsp const struct got_error *err = NULL;
663 d1f16636 2020-01-15 stsp struct got_repository *repo = arg;
664 d1f16636 2020-01-15 stsp struct got_object_id *id1, *id2 = NULL;
665 d1f16636 2020-01-15 stsp struct got_tag_object *tag1 = NULL, *tag2 = NULL;
666 d1f16636 2020-01-15 stsp struct got_commit_object *commit1 = NULL, *commit2 = NULL;
667 d1f16636 2020-01-15 stsp time_t time1, time2;
671 d1f16636 2020-01-15 stsp err = got_ref_resolve(&id1, repo, ref1);
673 d1f16636 2020-01-15 stsp return err;
674 d1f16636 2020-01-15 stsp err = got_object_open_as_tag(&tag1, repo, id1);
676 d1f16636 2020-01-15 stsp if (err->code != GOT_ERR_OBJ_TYPE)
678 d1f16636 2020-01-15 stsp /* "lightweight" tag */
679 d1f16636 2020-01-15 stsp err = got_object_open_as_commit(&commit1, repo, id1);
682 d1f16636 2020-01-15 stsp time1 = got_object_commit_get_committer_time(commit1);
684 d1f16636 2020-01-15 stsp time1 = got_object_tag_get_tagger_time(tag1);
686 d1f16636 2020-01-15 stsp err = got_ref_resolve(&id2, repo, ref2);
689 d1f16636 2020-01-15 stsp err = got_object_open_as_tag(&tag2, repo, id2);
691 d1f16636 2020-01-15 stsp if (err->code != GOT_ERR_OBJ_TYPE)
693 d1f16636 2020-01-15 stsp /* "lightweight" tag */
694 d1f16636 2020-01-15 stsp err = got_object_open_as_commit(&commit2, repo, id2);
697 d1f16636 2020-01-15 stsp time2 = got_object_commit_get_committer_time(commit2);
699 d1f16636 2020-01-15 stsp time2 = got_object_tag_get_tagger_time(tag2);
701 d1f16636 2020-01-15 stsp /* Put latest tags first. */
702 d1f16636 2020-01-15 stsp if (time1 < time2)
704 d1f16636 2020-01-15 stsp else if (time1 > time2)
707 d1f16636 2020-01-15 stsp err = got_ref_cmp_by_name(NULL, cmp, ref2, ref1);
712 d1f16636 2020-01-15 stsp got_object_tag_close(tag1);
714 d1f16636 2020-01-15 stsp got_object_tag_close(tag2);
715 e600f124 2021-03-21 stsp if (commit1)
716 e600f124 2021-03-21 stsp got_object_commit_close(commit1);
717 e600f124 2021-03-21 stsp if (commit2)
718 e600f124 2021-03-21 stsp got_object_commit_close(commit2);
719 7f66531d 2021-11-16 stsp return err;
722 7f66531d 2021-11-16 stsp static const struct got_error *
723 7f66531d 2021-11-16 stsp get_committer_time(struct got_reference *ref, struct got_repository *repo)
725 7f66531d 2021-11-16 stsp const struct got_error *err = NULL;
726 7f66531d 2021-11-16 stsp int obj_type;
727 7f66531d 2021-11-16 stsp struct got_commit_object *commit = NULL;
728 7f66531d 2021-11-16 stsp struct got_tag_object *tag = NULL;
729 7f66531d 2021-11-16 stsp struct got_object_id *id = NULL;
731 7f66531d 2021-11-16 stsp err = got_ref_resolve(&id, repo, ref);
733 7f66531d 2021-11-16 stsp return err;
735 7f66531d 2021-11-16 stsp err = got_object_get_type(&obj_type, repo, id);
739 7f66531d 2021-11-16 stsp switch (obj_type) {
740 7f66531d 2021-11-16 stsp case GOT_OBJ_TYPE_COMMIT:
741 7f66531d 2021-11-16 stsp err = got_object_open_as_commit(&commit, repo, id);
744 7f66531d 2021-11-16 stsp ref->committer_time =
745 7f66531d 2021-11-16 stsp got_object_commit_get_committer_time(commit);
747 7f66531d 2021-11-16 stsp case GOT_OBJ_TYPE_TAG:
748 7f66531d 2021-11-16 stsp err = got_object_open_as_tag(&tag, repo, id);
751 7f66531d 2021-11-16 stsp ref->committer_time = got_object_tag_get_tagger_time(tag);
754 7f66531d 2021-11-16 stsp /* best effort for other object types */
755 7f66531d 2021-11-16 stsp ref->committer_time = got_ref_get_mtime(ref);
760 7f66531d 2021-11-16 stsp if (commit)
761 7f66531d 2021-11-16 stsp got_object_commit_close(commit);
763 7f66531d 2021-11-16 stsp got_object_tag_close(tag);
764 e600f124 2021-03-21 stsp return err;
767 e600f124 2021-03-21 stsp const struct got_error *
768 e600f124 2021-03-21 stsp got_ref_cmp_by_commit_timestamp_descending(void *arg, int *cmp,
769 e600f124 2021-03-21 stsp struct got_reference *ref1, struct got_reference *ref2)
771 0309152a 2021-11-20 stsp const struct got_error *err = NULL;
772 e600f124 2021-03-21 stsp struct got_repository *repo = arg;
776 2c9e323b 2021-10-10 stsp if (ref1->committer_time == 0) {
777 7f66531d 2021-11-16 stsp err = get_committer_time(ref1, repo);
779 2c9e323b 2021-10-10 stsp return err;
781 7f66531d 2021-11-16 stsp if (ref2->committer_time == 0) {
782 7f66531d 2021-11-16 stsp err = get_committer_time(ref2, repo);
784 2c9e323b 2021-10-10 stsp return err;
787 2c9e323b 2021-10-10 stsp if (ref1->committer_time < ref2->committer_time)
789 2c9e323b 2021-10-10 stsp else if (ref2->committer_time < ref1->committer_time)
792 42864987 2021-11-20 stsp return got_ref_cmp_by_name(arg, cmp, ref1, ref2);
794 d1f16636 2020-01-15 stsp return err;
797 779e1159 2021-06-18 stsp const struct got_error *
798 c0df5966 2021-12-31 stsp got_reflist_insert(struct got_reflist_entry **newp,
799 c0df5966 2021-12-31 stsp struct got_reflist_head *refs, struct got_reference *ref,
800 c0df5966 2021-12-31 stsp got_ref_cmp_cb cmp_cb, void *cmp_arg)
802 199a4027 2019-02-02 stsp const struct got_error *err;
803 d9dff0e5 2020-12-26 stsp struct got_reflist_entry *new, *re;
806 505287be 2019-03-15 stsp *newp = NULL;
808 3d8e0c5e 2022-09-05 stsp if (cmp_cb != got_ref_cmp_by_name && (ref->flags & GOT_REF_IS_PACKED)) {
810 7db2b0dd 2022-09-05 stsp * If we are not sorting elements by name then we must still
811 7db2b0dd 2022-09-05 stsp * detect collisions between a packed ref and an on-disk ref
812 7db2b0dd 2022-09-05 stsp * using the same name. On-disk refs take precedence and are
813 7db2b0dd 2022-09-05 stsp * already present on the list before packed refs get added.
815 7db2b0dd 2022-09-05 stsp TAILQ_FOREACH(re, refs, entry) {
816 3d8e0c5e 2022-09-05 stsp err = got_ref_cmp_by_name(NULL, &cmp, re->ref, ref);
818 7db2b0dd 2022-09-05 stsp return err;
819 3d8e0c5e 2022-09-05 stsp if (cmp == 0)
820 7db2b0dd 2022-09-05 stsp return NULL;
824 3d8e0c5e 2022-09-05 stsp new = malloc(sizeof(*new));
825 3d8e0c5e 2022-09-05 stsp if (new == NULL)
826 3d8e0c5e 2022-09-05 stsp return got_error_from_errno("malloc");
827 3d8e0c5e 2022-09-05 stsp new->ref = ref;
828 3d8e0c5e 2022-09-05 stsp *newp = new;
831 29b5c214 2019-02-04 stsp * We must de-duplicate entries on insert because packed-refs may
832 29b5c214 2019-02-04 stsp * contain redundant entries. On-disk refs take precedence.
833 29b5c214 2019-02-04 stsp * This code assumes that on-disk revs are read before packed-refs.
834 e397b6db 2019-02-04 stsp * We're iterating the list anyway, so insert elements sorted by name.
836 d9dff0e5 2020-12-26 stsp * Many callers will provide paths in a somewhat sorted order.
837 d9dff0e5 2020-12-26 stsp * Iterating backwards from the tail of the list should be more
838 d9dff0e5 2020-12-26 stsp * efficient than traversing through the entire list each time
839 d9dff0e5 2020-12-26 stsp * an element is inserted.
841 d9dff0e5 2020-12-26 stsp re = TAILQ_LAST(refs, got_reflist_head);
842 7a3c76f5 2019-02-05 stsp while (re) {
843 b8bad2ba 2019-08-23 stsp err = (*cmp_cb)(cmp_arg, &cmp, re->ref, new->ref);
845 b8bad2ba 2019-08-23 stsp return err;
846 e397b6db 2019-02-04 stsp if (cmp == 0) {
847 27a1ed03 2019-03-15 stsp /* duplicate */
849 505287be 2019-03-15 stsp *newp = NULL;
850 7a3c76f5 2019-02-05 stsp return NULL;
851 d9dff0e5 2020-12-26 stsp } else if (cmp < 0) {
852 d9dff0e5 2020-12-26 stsp TAILQ_INSERT_AFTER(refs, re, new, entry);
853 7a3c76f5 2019-02-05 stsp return NULL;
855 d9dff0e5 2020-12-26 stsp re = TAILQ_PREV(re, got_reflist_head, entry);
858 d9dff0e5 2020-12-26 stsp TAILQ_INSERT_HEAD(refs, new, entry);
859 199a4027 2019-02-02 stsp return NULL;
862 2d497592 2021-11-20 stsp const struct got_error *
863 2d497592 2021-11-20 stsp got_reflist_sort(struct got_reflist_head *refs,
864 2d497592 2021-11-20 stsp got_ref_cmp_cb cmp_cb, void *cmp_arg)
866 2d497592 2021-11-20 stsp const struct got_error *err = NULL;
867 2d497592 2021-11-20 stsp struct got_reflist_entry *re, *tmp, *new;
868 2d497592 2021-11-20 stsp struct got_reflist_head sorted;
870 2d497592 2021-11-20 stsp TAILQ_INIT(&sorted);
872 2d497592 2021-11-20 stsp TAILQ_FOREACH_SAFE(re, refs, entry, tmp) {
873 2d497592 2021-11-20 stsp struct got_reference *ref = re->ref;
874 2d497592 2021-11-20 stsp TAILQ_REMOVE(refs, re, entry);
876 2d497592 2021-11-20 stsp err = got_reflist_insert(&new, &sorted, ref, cmp_cb, cmp_arg);
877 2d497592 2021-11-20 stsp if (err || new == NULL /* duplicate */)
878 2d497592 2021-11-20 stsp got_ref_close(ref);
880 2d497592 2021-11-20 stsp return err;
883 2d497592 2021-11-20 stsp TAILQ_CONCAT(refs, &sorted, entry);
884 2d497592 2021-11-20 stsp return NULL;
887 a04f49d2 2019-02-04 stsp static const struct got_error *
888 29b5c214 2019-02-04 stsp gather_on_disk_refs(struct got_reflist_head *refs, const char *path_refs,
889 b8bad2ba 2019-08-23 stsp const char *subdir, struct got_repository *repo,
890 b8bad2ba 2019-08-23 stsp got_ref_cmp_cb cmp_cb, void *cmp_arg)
892 a04f49d2 2019-02-04 stsp const struct got_error *err = NULL;
893 a04f49d2 2019-02-04 stsp DIR *d = NULL;
894 a04f49d2 2019-02-04 stsp char *path_subdir;
896 b2070a3f 2020-03-22 stsp while (subdir[0] == '/')
899 a04f49d2 2019-02-04 stsp if (asprintf(&path_subdir, "%s/%s", path_refs, subdir) == -1)
900 638f9024 2019-05-13 stsp return got_error_from_errno("asprintf");
902 a04f49d2 2019-02-04 stsp d = opendir(path_subdir);
903 a04f49d2 2019-02-04 stsp if (d == NULL)
907 a04f49d2 2019-02-04 stsp struct dirent *dent;
908 a04f49d2 2019-02-04 stsp struct got_reference *ref;
909 a04f49d2 2019-02-04 stsp char *child;
912 a04f49d2 2019-02-04 stsp dent = readdir(d);
913 a04f49d2 2019-02-04 stsp if (dent == NULL)
916 a04f49d2 2019-02-04 stsp if (strcmp(dent->d_name, ".") == 0 ||
917 a04f49d2 2019-02-04 stsp strcmp(dent->d_name, "..") == 0)
920 20ccae39 2020-07-21 stsp err = got_path_dirent_type(&type, path_subdir, dent);
924 20ccae39 2020-07-21 stsp switch (type) {
925 a04f49d2 2019-02-04 stsp case DT_REG:
926 2f17228e 2019-05-12 stsp err = open_ref(&ref, path_refs, subdir, dent->d_name,
927 95b631b2 2023-02-12 op 0, got_repo_get_object_format(repo));
931 505287be 2019-03-15 stsp struct got_reflist_entry *new;
932 72acb3d8 2021-08-06 stsp err = got_reflist_insert(&new, refs, ref,
933 b8bad2ba 2019-08-23 stsp cmp_cb, cmp_arg);
934 505287be 2019-03-15 stsp if (err || new == NULL /* duplicate */)
935 505287be 2019-03-15 stsp got_ref_close(ref);
940 a04f49d2 2019-02-04 stsp case DT_DIR:
941 a04f49d2 2019-02-04 stsp if (asprintf(&child, "%s%s%s", subdir,
942 a04f49d2 2019-02-04 stsp subdir[0] == '\0' ? "" : "/", dent->d_name) == -1) {
943 638f9024 2019-05-13 stsp err = got_error_from_errno("asprintf");
946 b8bad2ba 2019-08-23 stsp err = gather_on_disk_refs(refs, path_refs, child, repo,
947 b8bad2ba 2019-08-23 stsp cmp_cb, cmp_arg);
948 a04f49d2 2019-02-04 stsp free(child);
956 a04f49d2 2019-02-04 stsp closedir(d);
957 a04f49d2 2019-02-04 stsp free(path_subdir);
958 a04f49d2 2019-02-04 stsp return err;
961 199a4027 2019-02-02 stsp const struct got_error *
962 29606af7 2019-08-23 stsp got_ref_list(struct got_reflist_head *refs, struct got_repository *repo,
963 b8bad2ba 2019-08-23 stsp const char *ref_namespace, got_ref_cmp_cb cmp_cb, void *cmp_arg)
965 199a4027 2019-02-02 stsp const struct got_error *err;
966 c3821bef 2022-07-21 florian char *packed_refs_path = NULL, *path_refs = NULL;
967 58e31a80 2022-06-27 op char *abs_namespace = NULL, *buf = NULL;
968 58e31a80 2022-06-27 op const char *ondisk_ref_namespace = NULL;
969 9bdd68dd 2020-01-02 naddy char *line = NULL;
970 29b5c214 2019-02-04 stsp FILE *f = NULL;
971 199a4027 2019-02-02 stsp struct got_reference *ref;
972 505287be 2019-03-15 stsp struct got_reflist_entry *new;
974 29606af7 2019-08-23 stsp if (ref_namespace == NULL || ref_namespace[0] == '\0') {
975 29606af7 2019-08-23 stsp path_refs = get_refs_dir_path(repo, GOT_REF_HEAD);
976 29606af7 2019-08-23 stsp if (path_refs == NULL) {
977 29606af7 2019-08-23 stsp err = got_error_from_errno("get_refs_dir_path");
980 95b631b2 2023-02-12 op err = open_ref(&ref, path_refs, "", GOT_REF_HEAD, 0,
981 95b631b2 2023-02-12 op got_repo_get_object_format(repo));
984 72acb3d8 2021-08-06 stsp err = got_reflist_insert(&new, refs, ref, cmp_cb, cmp_arg);
985 29606af7 2019-08-23 stsp if (err || new == NULL /* duplicate */)
986 29606af7 2019-08-23 stsp got_ref_close(ref);
987 f68a7890 2020-03-19 stsp if (err && err->code != GOT_ERR_NOT_REF)
990 b2070a3f 2020-03-22 stsp /* Try listing a single reference. */
991 b2070a3f 2020-03-22 stsp const char *refname = ref_namespace;
992 b2070a3f 2020-03-22 stsp path_refs = get_refs_dir_path(repo, refname);
993 b2070a3f 2020-03-22 stsp if (path_refs == NULL) {
994 b2070a3f 2020-03-22 stsp err = got_error_from_errno("get_refs_dir_path");
997 95b631b2 2023-02-12 op err = open_ref(&ref, path_refs, "", refname, 0,
998 95b631b2 2023-02-12 op got_repo_get_object_format(repo));
1000 b2070a3f 2020-03-22 stsp if (err->code != GOT_ERR_NOT_REF)
1001 b2070a3f 2020-03-22 stsp goto done;
1002 b2070a3f 2020-03-22 stsp /* Try to look up references in a given namespace. */
1004 72acb3d8 2021-08-06 stsp err = got_reflist_insert(&new, refs, ref,
1005 b2070a3f 2020-03-22 stsp cmp_cb, cmp_arg);
1006 b2070a3f 2020-03-22 stsp if (err || new == NULL /* duplicate */)
1007 b2070a3f 2020-03-22 stsp got_ref_close(ref);
1008 b2070a3f 2020-03-22 stsp return err;
1012 b2070a3f 2020-03-22 stsp if (ref_namespace) {
1013 b2070a3f 2020-03-22 stsp size_t len;
1014 b2070a3f 2020-03-22 stsp /* Canonicalize the path to eliminate double-slashes if any. */
1015 b2070a3f 2020-03-22 stsp if (asprintf(&abs_namespace, "/%s", ref_namespace) == -1) {
1016 b2070a3f 2020-03-22 stsp err = got_error_from_errno("asprintf");
1017 b2070a3f 2020-03-22 stsp goto done;
1019 b2070a3f 2020-03-22 stsp len = strlen(abs_namespace) + 1;
1020 b2070a3f 2020-03-22 stsp buf = malloc(len);
1021 b2070a3f 2020-03-22 stsp if (buf == NULL) {
1022 b2070a3f 2020-03-22 stsp err = got_error_from_errno("malloc");
1023 b2070a3f 2020-03-22 stsp goto done;
1025 b2070a3f 2020-03-22 stsp err = got_canonpath(abs_namespace, buf, len);
1027 b2070a3f 2020-03-22 stsp goto done;
1028 b2070a3f 2020-03-22 stsp ondisk_ref_namespace = buf;
1029 b2070a3f 2020-03-22 stsp while (ondisk_ref_namespace[0] == '/')
1030 b2070a3f 2020-03-22 stsp ondisk_ref_namespace++;
1031 b2070a3f 2020-03-22 stsp if (strncmp(ondisk_ref_namespace, "refs/", 5) == 0)
1032 b2070a3f 2020-03-22 stsp ondisk_ref_namespace += 5;
1033 b2070a3f 2020-03-22 stsp else if (strcmp(ondisk_ref_namespace, "refs") == 0)
1034 b2070a3f 2020-03-22 stsp ondisk_ref_namespace = "";
1037 29b5c214 2019-02-04 stsp /* Gather on-disk refs before parsing packed-refs. */
1038 29b5c214 2019-02-04 stsp free(path_refs);
1039 29b5c214 2019-02-04 stsp path_refs = get_refs_dir_path(repo, "");
1040 29b5c214 2019-02-04 stsp if (path_refs == NULL) {
1041 638f9024 2019-05-13 stsp err = got_error_from_errno("get_refs_dir_path");
1042 29b5c214 2019-02-04 stsp goto done;
1044 29606af7 2019-08-23 stsp err = gather_on_disk_refs(refs, path_refs,
1045 6aeab596 2019-08-28 stsp ondisk_ref_namespace ? ondisk_ref_namespace : "", repo,
1046 6aeab596 2019-08-28 stsp cmp_cb, cmp_arg);
1048 29b5c214 2019-02-04 stsp goto done;
1051 29b5c214 2019-02-04 stsp * The packed-refs file may contain redundant entries, in which
1052 29b5c214 2019-02-04 stsp * case on-disk refs take precedence.
1054 199a4027 2019-02-02 stsp packed_refs_path = got_repo_get_path_packed_refs(repo);
1055 29b5c214 2019-02-04 stsp if (packed_refs_path == NULL) {
1056 638f9024 2019-05-13 stsp err = got_error_from_errno("got_repo_get_path_packed_refs");
1057 29b5c214 2019-02-04 stsp goto done;
1060 00fe21f2 2021-12-31 stsp f = fopen(packed_refs_path, "re");
1062 7a90b680 2020-01-02 naddy size_t linesize = 0;
1063 9bdd68dd 2020-01-02 naddy ssize_t linelen;
1064 3f338f0a 2021-07-27 stsp struct stat sb;
1066 3f338f0a 2021-07-27 stsp if (fstat(fileno(f), &sb) == -1) {
1067 3f338f0a 2021-07-27 stsp err = got_error_from_errno2("fstat", packed_refs_path);
1068 3f338f0a 2021-07-27 stsp goto done;
1071 9bdd68dd 2020-01-02 naddy linelen = getline(&line, &linesize, f);
1072 9bdd68dd 2020-01-02 naddy if (linelen == -1) {
1073 0bb4abae 2019-03-15 stsp if (feof(f))
1075 0bb4abae 2019-03-15 stsp err = got_ferror(f, GOT_ERR_BAD_REF_DATA);
1076 0bb4abae 2019-03-15 stsp goto done;
1078 9bdd68dd 2020-01-02 naddy if (linelen > 0 && line[linelen - 1] == '\n')
1079 9bdd68dd 2020-01-02 naddy line[linelen - 1] = '\0';
1080 3f338f0a 2021-07-27 stsp err = parse_packed_ref_line(&ref, NULL, line,
1081 95b631b2 2023-02-12 op sb.st_mtime, got_repo_get_object_format(repo));
1083 199a4027 2019-02-02 stsp goto done;
1084 76b4ead2 2019-02-03 stsp if (ref) {
1085 29606af7 2019-08-23 stsp if (ref_namespace) {
1086 29606af7 2019-08-23 stsp const char *name;
1087 29606af7 2019-08-23 stsp name = got_ref_get_name(ref);
1088 b2070a3f 2020-03-22 stsp if (!got_path_is_child(name,
1089 b2070a3f 2020-03-22 stsp ref_namespace,
1090 b2070a3f 2020-03-22 stsp strlen(ref_namespace))) {
1091 29606af7 2019-08-23 stsp got_ref_close(ref);
1095 72acb3d8 2021-08-06 stsp err = got_reflist_insert(&new, refs, ref,
1096 b8bad2ba 2019-08-23 stsp cmp_cb, cmp_arg);
1097 505287be 2019-03-15 stsp if (err || new == NULL /* duplicate */)
1098 505287be 2019-03-15 stsp got_ref_close(ref);
1100 76b4ead2 2019-02-03 stsp goto done;
1105 c3821bef 2022-07-21 florian free(packed_refs_path);
1106 b2070a3f 2020-03-22 stsp free(abs_namespace);
1107 b2070a3f 2020-03-22 stsp free(buf);
1108 9bdd68dd 2020-01-02 naddy free(line);
1109 a04f49d2 2019-02-04 stsp free(path_refs);
1110 56b63ca4 2021-01-22 stsp if (f && fclose(f) == EOF && err == NULL)
1111 638f9024 2019-05-13 stsp err = got_error_from_errno("fclose");
1112 199a4027 2019-02-02 stsp return err;
1116 e2e879a0 2019-03-11 stsp got_ref_list_free(struct got_reflist_head *refs)
1118 e2e879a0 2019-03-11 stsp struct got_reflist_entry *re;
1120 d9dff0e5 2020-12-26 stsp while ((re = TAILQ_FIRST(refs))) {
1121 d9dff0e5 2020-12-26 stsp TAILQ_REMOVE(refs, re, entry);
1122 af8a5c4a 2021-05-21 stsp got_ref_close(re->ref);
1128 b249b824 2019-05-09 stsp got_ref_is_symbolic(struct got_reference *ref)
1130 b249b824 2019-05-09 stsp return (ref->flags & GOT_REF_IS_SYMBOLIC);
1133 b249b824 2019-05-09 stsp const struct got_error *
1134 b249b824 2019-05-09 stsp got_ref_change_ref(struct got_reference *ref, struct got_object_id *id)
1136 b249b824 2019-05-09 stsp if (ref->flags & GOT_REF_IS_SYMBOLIC)
1137 b249b824 2019-05-09 stsp return got_error(GOT_ERR_BAD_REF_TYPE);
1139 faf5b56f 2023-01-31 op memcpy(&ref->ref.ref.id, id, sizeof(ref->ref.ref.id));
1140 b249b824 2019-05-09 stsp return NULL;
1143 9e672c74 2019-03-11 stsp const struct got_error *
1144 d7b899ab 2020-03-25 stsp got_ref_change_symref(struct got_reference *ref, const char *refname)
1146 b249b824 2019-05-09 stsp char *new_name;
1148 b249b824 2019-05-09 stsp if ((ref->flags & GOT_REF_IS_SYMBOLIC) == 0)
1149 b249b824 2019-05-09 stsp return got_error(GOT_ERR_BAD_REF_TYPE);
1151 b249b824 2019-05-09 stsp new_name = strdup(refname);
1152 b249b824 2019-05-09 stsp if (new_name == NULL)
1153 638f9024 2019-05-13 stsp return got_error_from_errno("strdup");
1155 d7b899ab 2020-03-25 stsp free(ref->ref.symref.ref);
1156 d7b899ab 2020-03-25 stsp ref->ref.symref.ref = new_name;
1157 b249b824 2019-05-09 stsp return NULL;
1160 b249b824 2019-05-09 stsp const struct got_error *
1161 e8a967e0 2020-03-21 stsp got_ref_change_symref_to_ref(struct got_reference *symref,
1162 e8a967e0 2020-03-21 stsp struct got_object_id *id)
1164 e8a967e0 2020-03-21 stsp if ((symref->flags & GOT_REF_IS_SYMBOLIC) == 0)
1165 e8a967e0 2020-03-21 stsp return got_error(GOT_ERR_BAD_REF_TYPE);
1167 e8a967e0 2020-03-21 stsp symref->ref.ref.name = symref->ref.symref.name;
1168 faf5b56f 2023-01-31 op memcpy(&symref->ref.ref.id, id, sizeof(symref->ref.ref.id));
1169 e8a967e0 2020-03-21 stsp symref->flags &= ~GOT_REF_IS_SYMBOLIC;
1170 e8a967e0 2020-03-21 stsp return NULL;
1173 e8a967e0 2020-03-21 stsp const struct got_error *
1174 9e672c74 2019-03-11 stsp got_ref_write(struct got_reference *ref, struct got_repository *repo)
1176 9e672c74 2019-03-11 stsp const struct got_error *err = NULL, *unlock_err = NULL;
1177 9e672c74 2019-03-11 stsp const char *name = got_ref_get_name(ref);
1178 9e672c74 2019-03-11 stsp char *path_refs = NULL, *path = NULL, *tmppath = NULL;
1179 9e672c74 2019-03-11 stsp struct got_lockfile *lf = NULL;
1180 9e672c74 2019-03-11 stsp FILE *f = NULL;
1182 9e672c74 2019-03-11 stsp struct stat sb;
1184 9e672c74 2019-03-11 stsp path_refs = get_refs_dir_path(repo, name);
1185 9e672c74 2019-03-11 stsp if (path_refs == NULL) {
1186 638f9024 2019-05-13 stsp err = got_error_from_errno2("get_refs_dir_path", name);
1187 9e672c74 2019-03-11 stsp goto done;
1190 9e672c74 2019-03-11 stsp if (asprintf(&path, "%s/%s", path_refs, name) == -1) {
1191 638f9024 2019-05-13 stsp err = got_error_from_errno("asprintf");
1192 9e672c74 2019-03-11 stsp goto done;
1195 b90054ed 2022-11-01 stsp err = got_opentemp_named(&tmppath, &f, path, "");
1196 49c7094f 2019-03-11 stsp if (err) {
1197 d1667f0d 2019-03-11 stsp char *parent;
1198 49c7094f 2019-03-11 stsp if (!(err->code == GOT_ERR_ERRNO && errno == ENOENT))
1199 5e1c9f23 2019-03-11 stsp goto done;
1200 d1667f0d 2019-03-11 stsp err = got_path_dirname(&parent, path);
1202 0cd1c46a 2019-03-11 stsp goto done;
1203 0cd1c46a 2019-03-11 stsp err = got_path_mkdir(parent);
1204 5e1c9f23 2019-03-11 stsp free(parent);
1206 0cd1c46a 2019-03-11 stsp goto done;
1207 b90054ed 2022-11-01 stsp err = got_opentemp_named(&tmppath, &f, path, "");
1209 0cd1c46a 2019-03-11 stsp goto done;
1212 9e672c74 2019-03-11 stsp if (ref->flags & GOT_REF_IS_SYMBOLIC) {
1213 9e672c74 2019-03-11 stsp n = fprintf(f, "ref: %s\n", ref->ref.symref.ref);
1214 9e672c74 2019-03-11 stsp if (n != strlen(ref->ref.symref.ref) + 6) {
1215 9e672c74 2019-03-11 stsp err = got_ferror(f, GOT_ERR_IO);
1216 9e672c74 2019-03-11 stsp goto done;
1222 faf5b56f 2023-01-31 op err = got_object_id_str(&hex, &ref->ref.ref.id);
1225 faf5b56f 2023-01-31 op len = strlen(hex);
1226 9e672c74 2019-03-11 stsp n = fprintf(f, "%s\n", hex);
1228 faf5b56f 2023-01-31 op if (n != len + 1) {
1229 9e672c74 2019-03-11 stsp err = got_ferror(f, GOT_ERR_IO);
1230 9e672c74 2019-03-11 stsp goto done;
1234 2f17228e 2019-05-12 stsp if (ref->lf == NULL) {
1235 5345b4c7 2021-07-06 stsp err = got_lockfile_lock(&lf, path, -1);
1237 2f17228e 2019-05-12 stsp goto done;
1240 9e672c74 2019-03-11 stsp /* XXX: check if old content matches our expectations? */
1242 0cd1c46a 2019-03-11 stsp if (stat(path, &sb) != 0) {
1243 0cd1c46a 2019-03-11 stsp if (errno != ENOENT) {
1244 638f9024 2019-05-13 stsp err = got_error_from_errno2("stat", path);
1245 0cd1c46a 2019-03-11 stsp goto done;
1247 0cd1c46a 2019-03-11 stsp sb.st_mode = GOT_DEFAULT_FILE_MODE;
1250 3818e3c4 2020-11-01 naddy if (fchmod(fileno(f), sb.st_mode) != 0) {
1251 3818e3c4 2020-11-01 naddy err = got_error_from_errno2("fchmod", tmppath);
1252 3818e3c4 2020-11-01 naddy goto done;
1255 9e672c74 2019-03-11 stsp if (rename(tmppath, path) != 0) {
1256 638f9024 2019-05-13 stsp err = got_error_from_errno3("rename", tmppath, path);
1257 9e672c74 2019-03-11 stsp goto done;
1259 9e672c74 2019-03-11 stsp free(tmppath);
1260 9e672c74 2019-03-11 stsp tmppath = NULL;
1262 3f338f0a 2021-07-27 stsp if (stat(path, &sb) == -1) {
1263 3f338f0a 2021-07-27 stsp err = got_error_from_errno2("stat", path);
1264 3f338f0a 2021-07-27 stsp goto done;
1266 3f338f0a 2021-07-27 stsp ref->mtime = sb.st_mtime;
1268 2f17228e 2019-05-12 stsp if (ref->lf == NULL && lf)
1269 5345b4c7 2021-07-06 stsp unlock_err = got_lockfile_unlock(lf, -1);
1271 56b63ca4 2021-01-22 stsp if (fclose(f) == EOF && err == NULL)
1272 638f9024 2019-05-13 stsp err = got_error_from_errno("fclose");
1274 9e672c74 2019-03-11 stsp free(path_refs);
1275 9e672c74 2019-03-11 stsp free(path);
1276 9e672c74 2019-03-11 stsp if (tmppath) {
1277 a06ca3f7 2022-10-15 stsp if (unlink(tmppath) == -1 && err == NULL)
1278 638f9024 2019-05-13 stsp err = got_error_from_errno2("unlink", tmppath);
1279 9e672c74 2019-03-11 stsp free(tmppath);
1281 2d2e1378 2019-03-11 stsp return err ? err : unlock_err;
1284 598a8b91 2019-03-15 stsp static const struct got_error *
1285 598a8b91 2019-03-15 stsp delete_packed_ref(struct got_reference *delref, struct got_repository *repo)
1287 598a8b91 2019-03-15 stsp const struct got_error *err = NULL, *unlock_err = NULL;
1288 598a8b91 2019-03-15 stsp struct got_lockfile *lf = NULL;
1289 598a8b91 2019-03-15 stsp FILE *f = NULL, *tmpf = NULL;
1290 9bdd68dd 2020-01-02 naddy char *line = NULL, *packed_refs_path, *tmppath = NULL;
1291 7a90b680 2020-01-02 naddy size_t linesize = 0;
1292 598a8b91 2019-03-15 stsp struct got_reflist_head refs;
1293 598a8b91 2019-03-15 stsp int found_delref = 0;
1295 598a8b91 2019-03-15 stsp /* The packed-refs file does not cotain symbolic references. */
1296 598a8b91 2019-03-15 stsp if (delref->flags & GOT_REF_IS_SYMBOLIC)
1297 598a8b91 2019-03-15 stsp return got_error(GOT_ERR_BAD_REF_DATA);
1299 d9dff0e5 2020-12-26 stsp TAILQ_INIT(&refs);
1301 598a8b91 2019-03-15 stsp packed_refs_path = got_repo_get_path_packed_refs(repo);
1302 598a8b91 2019-03-15 stsp if (packed_refs_path == NULL)
1303 638f9024 2019-05-13 stsp return got_error_from_errno("got_repo_get_path_packed_refs");
1305 b90054ed 2022-11-01 stsp err = got_opentemp_named(&tmppath, &tmpf, packed_refs_path, "");
1307 598a8b91 2019-03-15 stsp goto done;
1309 2f17228e 2019-05-12 stsp if (delref->lf == NULL) {
1310 5345b4c7 2021-07-06 stsp err = got_lockfile_lock(&lf, packed_refs_path, -1);
1312 2f17228e 2019-05-12 stsp goto done;
1315 00fe21f2 2021-12-31 stsp f = fopen(packed_refs_path, "re");
1316 598a8b91 2019-03-15 stsp if (f == NULL) {
1317 638f9024 2019-05-13 stsp err = got_error_from_errno2("fopen", packed_refs_path);
1318 598a8b91 2019-03-15 stsp goto done;
1321 9bdd68dd 2020-01-02 naddy ssize_t linelen;
1322 598a8b91 2019-03-15 stsp struct got_reference *ref;
1323 598a8b91 2019-03-15 stsp struct got_reflist_entry *new;
1325 9bdd68dd 2020-01-02 naddy linelen = getline(&line, &linesize, f);
1326 9bdd68dd 2020-01-02 naddy if (linelen == -1) {
1327 598a8b91 2019-03-15 stsp if (feof(f))
1329 598a8b91 2019-03-15 stsp err = got_ferror(f, GOT_ERR_BAD_REF_DATA);
1330 598a8b91 2019-03-15 stsp goto done;
1332 9bdd68dd 2020-01-02 naddy if (linelen > 0 && line[linelen - 1] == '\n')
1333 9bdd68dd 2020-01-02 naddy line[linelen - 1] = '\0';
1334 95b631b2 2023-02-12 op err = parse_packed_ref_line(&ref, NULL, line, 0,
1335 95b631b2 2023-02-12 op got_repo_get_object_format(repo));
1337 598a8b91 2019-03-15 stsp goto done;
1338 598a8b91 2019-03-15 stsp if (ref == NULL)
1341 598a8b91 2019-03-15 stsp if (strcmp(ref->ref.ref.name, delref->ref.ref.name) == 0 &&
1342 faf5b56f 2023-01-31 op got_object_id_cmp(&ref->ref.ref.id,
1343 faf5b56f 2023-01-31 op &delref->ref.ref.id) == 0) {
1344 598a8b91 2019-03-15 stsp found_delref = 1;
1345 598a8b91 2019-03-15 stsp got_ref_close(ref);
1349 72acb3d8 2021-08-06 stsp err = got_reflist_insert(&new, &refs, ref,
1350 b8bad2ba 2019-08-23 stsp got_ref_cmp_by_name, NULL);
1351 598a8b91 2019-03-15 stsp if (err || new == NULL /* duplicate */)
1352 598a8b91 2019-03-15 stsp got_ref_close(ref);
1354 598a8b91 2019-03-15 stsp goto done;
1357 598a8b91 2019-03-15 stsp if (found_delref) {
1358 598a8b91 2019-03-15 stsp struct got_reflist_entry *re;
1360 598a8b91 2019-03-15 stsp struct stat sb;
1362 598a8b91 2019-03-15 stsp n = fprintf(tmpf, "%s\n", GOT_PACKED_REFS_HEADER);
1363 598a8b91 2019-03-15 stsp if (n != sizeof(GOT_PACKED_REFS_HEADER)) {
1364 598a8b91 2019-03-15 stsp err = got_ferror(f, GOT_ERR_IO);
1365 598a8b91 2019-03-15 stsp goto done;
1368 d9dff0e5 2020-12-26 stsp TAILQ_FOREACH(re, &refs, entry) {
1372 faf5b56f 2023-01-31 op err = got_object_id_str(&hex, &re->ref->ref.ref.id);
1374 598a8b91 2019-03-15 stsp goto done;
1375 faf5b56f 2023-01-31 op len = strlen(hex);
1376 598a8b91 2019-03-15 stsp n = fprintf(tmpf, "%s ", hex);
1378 faf5b56f 2023-01-31 op if (n != len + 1) {
1379 598a8b91 2019-03-15 stsp err = got_ferror(f, GOT_ERR_IO);
1380 598a8b91 2019-03-15 stsp goto done;
1383 598a8b91 2019-03-15 stsp n = fprintf(tmpf, "%s\n", re->ref->ref.ref.name);
1384 598a8b91 2019-03-15 stsp if (n != strlen(re->ref->ref.ref.name) + 1) {
1385 598a8b91 2019-03-15 stsp err = got_ferror(f, GOT_ERR_IO);
1386 598a8b91 2019-03-15 stsp goto done;
1390 598a8b91 2019-03-15 stsp if (fflush(tmpf) != 0) {
1391 638f9024 2019-05-13 stsp err = got_error_from_errno("fflush");
1392 598a8b91 2019-03-15 stsp goto done;
1395 3818e3c4 2020-11-01 naddy if (fstat(fileno(f), &sb) != 0) {
1396 598a8b91 2019-03-15 stsp if (errno != ENOENT) {
1397 3818e3c4 2020-11-01 naddy err = got_error_from_errno2("fstat",
1398 230a42bd 2019-05-11 jcs packed_refs_path);
1399 598a8b91 2019-03-15 stsp goto done;
1401 598a8b91 2019-03-15 stsp sb.st_mode = GOT_DEFAULT_FILE_MODE;
1404 3818e3c4 2020-11-01 naddy if (fchmod(fileno(tmpf), sb.st_mode) != 0) {
1405 3818e3c4 2020-11-01 naddy err = got_error_from_errno2("fchmod", tmppath);
1406 598a8b91 2019-03-15 stsp goto done;
1409 3818e3c4 2020-11-01 naddy if (rename(tmppath, packed_refs_path) != 0) {
1410 3818e3c4 2020-11-01 naddy err = got_error_from_errno3("rename", tmppath,
1411 230a42bd 2019-05-11 jcs packed_refs_path);
1412 598a8b91 2019-03-15 stsp goto done;
1414 15c388a9 2022-10-15 stsp free(tmppath);
1415 15c388a9 2022-10-15 stsp tmppath = NULL;
1418 2f17228e 2019-05-12 stsp if (delref->lf == NULL && lf)
1419 5345b4c7 2021-07-06 stsp unlock_err = got_lockfile_unlock(lf, -1);
1421 56b63ca4 2021-01-22 stsp if (fclose(f) == EOF && err == NULL)
1422 638f9024 2019-05-13 stsp err = got_error_from_errno("fclose");
1424 15c388a9 2022-10-15 stsp if (tmppath && unlink(tmppath) == -1 && err == NULL)
1425 15c388a9 2022-10-15 stsp err = got_error_from_errno2("unlink", tmppath);
1426 15c388a9 2022-10-15 stsp if (tmpf && fclose(tmpf) == EOF && err == NULL)
1427 15c388a9 2022-10-15 stsp err = got_error_from_errno("fclose");
1428 598a8b91 2019-03-15 stsp free(tmppath);
1429 598a8b91 2019-03-15 stsp free(packed_refs_path);
1430 9bdd68dd 2020-01-02 naddy free(line);
1431 598a8b91 2019-03-15 stsp got_ref_list_free(&refs);
1432 598a8b91 2019-03-15 stsp return err ? err : unlock_err;
1435 2a104ff6 2020-09-21 stsp static const struct got_error *
1436 2a104ff6 2020-09-21 stsp delete_loose_ref(struct got_reference *ref, struct got_repository *repo)
1438 2d2e1378 2019-03-11 stsp const struct got_error *err = NULL, *unlock_err = NULL;
1439 2d2e1378 2019-03-11 stsp const char *name = got_ref_get_name(ref);
1440 2d2e1378 2019-03-11 stsp char *path_refs = NULL, *path = NULL;
1441 2d2e1378 2019-03-11 stsp struct got_lockfile *lf = NULL;
1443 2d2e1378 2019-03-11 stsp path_refs = get_refs_dir_path(repo, name);
1444 2d2e1378 2019-03-11 stsp if (path_refs == NULL) {
1445 638f9024 2019-05-13 stsp err = got_error_from_errno2("get_refs_dir_path", name);
1446 2d2e1378 2019-03-11 stsp goto done;
1449 2d2e1378 2019-03-11 stsp if (asprintf(&path, "%s/%s", path_refs, name) == -1) {
1450 638f9024 2019-05-13 stsp err = got_error_from_errno("asprintf");
1451 2d2e1378 2019-03-11 stsp goto done;
1454 2f17228e 2019-05-12 stsp if (ref->lf == NULL) {
1455 5345b4c7 2021-07-06 stsp err = got_lockfile_lock(&lf, path, -1);
1457 2f17228e 2019-05-12 stsp goto done;
1460 2d2e1378 2019-03-11 stsp /* XXX: check if old content matches our expectations? */
1462 a06ca3f7 2022-10-15 stsp if (unlink(path) == -1)
1463 638f9024 2019-05-13 stsp err = got_error_from_errno2("unlink", path);
1465 2f17228e 2019-05-12 stsp if (ref->lf == NULL && lf)
1466 5345b4c7 2021-07-06 stsp unlock_err = got_lockfile_unlock(lf, -1);
1468 2d2e1378 2019-03-11 stsp free(path_refs);
1469 2d2e1378 2019-03-11 stsp free(path);
1470 9e672c74 2019-03-11 stsp return err ? err : unlock_err;
1473 2a104ff6 2020-09-21 stsp const struct got_error *
1474 2a104ff6 2020-09-21 stsp got_ref_delete(struct got_reference *ref, struct got_repository *repo)
1476 2a104ff6 2020-09-21 stsp const struct got_error *err = NULL;
1477 2a104ff6 2020-09-21 stsp struct got_reference *ref2;
1479 2a104ff6 2020-09-21 stsp if (ref->flags & GOT_REF_IS_PACKED) {
1480 2a104ff6 2020-09-21 stsp err = delete_packed_ref(ref, repo);
1482 2a104ff6 2020-09-21 stsp return err;
1484 a1c4175c 2020-09-22 stsp err = got_ref_open(&ref2, repo, got_ref_get_name(ref), 0);
1485 2a104ff6 2020-09-21 stsp if (err) {
1486 2a104ff6 2020-09-21 stsp if (err->code == GOT_ERR_NOT_REF)
1487 2a104ff6 2020-09-21 stsp return NULL;
1488 2a104ff6 2020-09-21 stsp return err;
1491 2a104ff6 2020-09-21 stsp err = delete_loose_ref(ref2, repo);
1492 2a104ff6 2020-09-21 stsp got_ref_close(ref2);
1493 2a104ff6 2020-09-21 stsp return err;
1495 2a104ff6 2020-09-21 stsp err = delete_loose_ref(ref, repo);
1497 2a104ff6 2020-09-21 stsp return err;
1499 a1c4175c 2020-09-22 stsp err = got_ref_open(&ref2, repo, got_ref_get_name(ref), 0);
1500 2a104ff6 2020-09-21 stsp if (err) {
1501 2a104ff6 2020-09-21 stsp if (err->code == GOT_ERR_NOT_REF)
1502 2a104ff6 2020-09-21 stsp return NULL;
1503 2a104ff6 2020-09-21 stsp return err;
1506 2a104ff6 2020-09-21 stsp err = delete_packed_ref(ref2, repo);
1507 2a104ff6 2020-09-21 stsp got_ref_close(ref2);
1508 2a104ff6 2020-09-21 stsp return err;
1512 2f17228e 2019-05-12 stsp const struct got_error *
1513 2f17228e 2019-05-12 stsp got_ref_unlock(struct got_reference *ref)
1515 2f17228e 2019-05-12 stsp const struct got_error *err;
1516 5345b4c7 2021-07-06 stsp err = got_lockfile_unlock(ref->lf, -1);
1517 2f17228e 2019-05-12 stsp ref->lf = NULL;
1518 2f17228e 2019-05-12 stsp return err;
1521 7b5b670e 2020-12-25 stsp struct got_reflist_object_id_map {
1522 7b5b670e 2020-12-25 stsp struct got_object_idset *idset;
1525 7b5b670e 2020-12-25 stsp struct got_reflist_object_id_map_entry {
1526 7b5b670e 2020-12-25 stsp struct got_reflist_head refs;
1529 24202e46 2020-12-26 stsp static const struct got_error *
1530 24202e46 2020-12-26 stsp add_object_id_map_entry(struct got_object_idset *idset,
1531 24202e46 2020-12-26 stsp struct got_object_id *id, struct got_reflist_entry *re)
1533 24202e46 2020-12-26 stsp const struct got_error *err = NULL;
1534 24202e46 2020-12-26 stsp struct got_reflist_object_id_map_entry *ent;
1535 24202e46 2020-12-26 stsp struct got_reflist_entry *new;
1537 24202e46 2020-12-26 stsp ent = got_object_idset_get(idset, id);
1538 24202e46 2020-12-26 stsp if (ent == NULL) {
1539 24202e46 2020-12-26 stsp ent = malloc(sizeof(*ent));
1540 24202e46 2020-12-26 stsp if (ent == NULL)
1541 24202e46 2020-12-26 stsp return got_error_from_errno("malloc");
1543 24202e46 2020-12-26 stsp TAILQ_INIT(&ent->refs);
1544 24202e46 2020-12-26 stsp err = got_object_idset_add(idset, id, ent);
1547 24202e46 2020-12-26 stsp return err;
1551 24202e46 2020-12-26 stsp err = got_reflist_entry_dup(&new, re);
1553 24202e46 2020-12-26 stsp return err;
1555 24202e46 2020-12-26 stsp TAILQ_INSERT_TAIL(&ent->refs, new, entry);
1556 24202e46 2020-12-26 stsp return NULL;
1559 7b5b670e 2020-12-25 stsp const struct got_error *
1560 7b5b670e 2020-12-25 stsp got_reflist_object_id_map_create(struct got_reflist_object_id_map **map,
1561 7b5b670e 2020-12-25 stsp struct got_reflist_head *refs, struct got_repository *repo)
1563 7b5b670e 2020-12-25 stsp const struct got_error *err = NULL;
1564 7b5b670e 2020-12-25 stsp struct got_object_idset *idset;
1565 7b5b670e 2020-12-25 stsp struct got_object_id *id = NULL;
1566 7b5b670e 2020-12-25 stsp struct got_reflist_entry *re;
1568 7b5b670e 2020-12-25 stsp idset = got_object_idset_alloc();
1569 7b5b670e 2020-12-25 stsp if (idset == NULL)
1570 7b5b670e 2020-12-25 stsp return got_error_from_errno("got_object_idset_alloc");
1572 7b5b670e 2020-12-25 stsp *map = malloc(sizeof(**map));
1573 7b5b670e 2020-12-25 stsp if (*map == NULL) {
1574 7b5b670e 2020-12-25 stsp got_object_idset_free(idset);
1575 7b5b670e 2020-12-25 stsp return got_error_from_errno("malloc");
1577 7b5b670e 2020-12-25 stsp (*map)->idset = idset;
1579 d9dff0e5 2020-12-26 stsp TAILQ_FOREACH(re, refs, entry) {
1580 24202e46 2020-12-26 stsp struct got_tag_object *tag = NULL;
1582 7b5b670e 2020-12-25 stsp err = got_ref_resolve(&id, repo, re->ref);
1584 7b5b670e 2020-12-25 stsp goto done;
1586 24202e46 2020-12-26 stsp err = add_object_id_map_entry(idset, id, re);
1588 24202e46 2020-12-26 stsp goto done;
1590 24202e46 2020-12-26 stsp if (strstr(got_ref_get_name(re->ref), "/tags/") == NULL) {
1592 24202e46 2020-12-26 stsp id = NULL;
1596 24202e46 2020-12-26 stsp err = got_object_open_as_tag(&tag, repo, id);
1597 24202e46 2020-12-26 stsp if (err) {
1598 24202e46 2020-12-26 stsp if (err->code != GOT_ERR_OBJ_TYPE)
1599 7b5b670e 2020-12-25 stsp goto done;
1600 24202e46 2020-12-26 stsp /* Ref points at something other than a tag. */
1601 24202e46 2020-12-26 stsp err = NULL;
1602 24202e46 2020-12-26 stsp tag = NULL;
1604 24202e46 2020-12-26 stsp id = NULL;
1608 24202e46 2020-12-26 stsp err = add_object_id_map_entry(idset,
1609 24202e46 2020-12-26 stsp got_object_tag_get_object_id(tag), re);
1610 f0ff8d4c 2020-12-26 stsp got_object_tag_close(tag);
1612 7b5b670e 2020-12-25 stsp goto done;
1615 7b5b670e 2020-12-25 stsp id = NULL;
1619 7b5b670e 2020-12-25 stsp if (err) {
1620 f193b038 2020-12-26 stsp got_reflist_object_id_map_free(*map);
1621 7b5b670e 2020-12-25 stsp *map = NULL;
1623 a53af95f 2020-12-26 stsp return err;
1626 7b5b670e 2020-12-25 stsp struct got_reflist_head *
1627 7b5b670e 2020-12-25 stsp got_reflist_object_id_map_lookup(struct got_reflist_object_id_map *map,
1628 7b5b670e 2020-12-25 stsp struct got_object_id *id)
1630 7b5b670e 2020-12-25 stsp struct got_reflist_object_id_map_entry *ent;
1631 7b5b670e 2020-12-25 stsp ent = got_object_idset_get(map->idset, id);
1633 7b5b670e 2020-12-25 stsp return &ent->refs;
1634 7b5b670e 2020-12-25 stsp return NULL;
1637 7b5b670e 2020-12-25 stsp static const struct got_error *
1638 7b5b670e 2020-12-25 stsp free_id_map_entry(struct got_object_id *id, void *data, void *arg)
1640 7b5b670e 2020-12-25 stsp struct got_reflist_object_id_map_entry *ent = data;
1642 7b5b670e 2020-12-25 stsp got_ref_list_free(&ent->refs);
1643 7b5b670e 2020-12-25 stsp free(ent);
1644 7b5b670e 2020-12-25 stsp return NULL;
1648 f193b038 2020-12-26 stsp got_reflist_object_id_map_free(struct got_reflist_object_id_map *map)
1650 7b5b670e 2020-12-25 stsp got_object_idset_for_each(map->idset, free_id_map_entry, NULL);
1651 7b5b670e 2020-12-25 stsp got_object_idset_free(map->idset);
1652 7b5b670e 2020-12-25 stsp free(map);
