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 5822e79e 2023-02-23 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 53bf0b54 2023-02-23 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 b54930d5 2023-02-28 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 87a3ab84 2023-02-23 op 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 b54930d5 2023-02-28 op const char *absname, const char *abspath, int lock,
174 b54930d5 2023-02-28 op enum got_hash_algorithm algo)
176 5261c201 2018-04-01 stsp const struct got_error *err = NULL;
178 c30018ad 2019-10-21 stsp char *line = NULL;
179 c30018ad 2019-10-21 stsp size_t linesize = 0;
180 c30018ad 2019-10-21 stsp ssize_t linelen;
181 2f17228e 2019-05-12 stsp struct got_lockfile *lf = NULL;
182 3f338f0a 2021-07-27 stsp struct stat sb;
184 2f17228e 2019-05-12 stsp if (lock) {
185 5345b4c7 2021-07-06 stsp err = got_lockfile_lock(&lf, abspath, -1);
187 9f142382 2020-03-21 stsp if (err->code == GOT_ERR_ERRNO && errno == ENOENT)
188 b2070a3f 2020-03-22 stsp err = got_error_not_ref(name);
189 9f142382 2020-03-21 stsp return err;
193 00fe21f2 2021-12-31 stsp f = fopen(abspath, "rbe");
194 f5c58ad1 2019-05-12 stsp if (f == NULL) {
195 b2070a3f 2020-03-22 stsp if (errno != ENOTDIR && errno != ENOENT)
196 b2070a3f 2020-03-22 stsp err = got_error_from_errno2("fopen", abspath);
198 b2070a3f 2020-03-22 stsp err = got_error_not_ref(name);
200 5345b4c7 2021-07-06 stsp got_lockfile_unlock(lf, -1);
201 b2070a3f 2020-03-22 stsp return err;
203 3f338f0a 2021-07-27 stsp if (fstat(fileno(f), &sb) == -1) {
204 3f338f0a 2021-07-27 stsp err = got_error_from_errno2("fstat", abspath);
208 c30018ad 2019-10-21 stsp linelen = getline(&line, &linesize, f);
209 c30018ad 2019-10-21 stsp if (linelen == -1) {
210 c30018ad 2019-10-21 stsp if (feof(f))
211 c30018ad 2019-10-21 stsp err = NULL; /* ignore empty files (could be locks) */
213 b2070a3f 2020-03-22 stsp if (errno == EISDIR)
214 b2070a3f 2020-03-22 stsp err = got_error(GOT_ERR_NOT_REF);
215 b2070a3f 2020-03-22 stsp else if (ferror(f))
216 b2070a3f 2020-03-22 stsp err = got_ferror(f, GOT_ERR_IO);
218 b2070a3f 2020-03-22 stsp err = got_error_from_errno2("getline", abspath);
221 5345b4c7 2021-07-06 stsp got_lockfile_unlock(lf, -1);
224 c30018ad 2019-10-21 stsp while (linelen > 0 && line[linelen - 1] == '\n') {
225 c30018ad 2019-10-21 stsp line[linelen - 1] = '\0';
229 b54930d5 2023-02-28 op err = parse_ref_line(ref, absname, line, sb.st_mtime, algo);
230 f5c58ad1 2019-05-12 stsp if (lock) {
232 5345b4c7 2021-07-06 stsp got_lockfile_unlock(lf, -1);
235 f5c58ad1 2019-05-12 stsp (*ref)->lf = lf;
237 5345b4c7 2021-07-06 stsp got_lockfile_unlock(lf, -1);
241 5261c201 2018-04-01 stsp free(line);
242 56b63ca4 2021-01-22 stsp if (fclose(f) == EOF && err == NULL) {
243 638f9024 2019-05-13 stsp err = got_error_from_errno("fclose");
244 2f17228e 2019-05-12 stsp if (*ref) {
246 f5c58ad1 2019-05-12 stsp got_ref_unlock(*ref);
247 2f17228e 2019-05-12 stsp got_ref_close(*ref);
248 2f17228e 2019-05-12 stsp *ref = NULL;
251 5261c201 2018-04-01 stsp return err;
255 c5f754cc 2019-02-01 stsp is_well_known_ref(const char *refname)
257 c5f754cc 2019-02-01 stsp return (strcmp(refname, GOT_REF_HEAD) == 0 ||
258 5261c201 2018-04-01 stsp strcmp(refname, GOT_REF_ORIG_HEAD) == 0 ||
259 5261c201 2018-04-01 stsp strcmp(refname, GOT_REF_MERGE_HEAD) == 0 ||
260 c5f754cc 2019-02-01 stsp strcmp(refname, GOT_REF_FETCH_HEAD) == 0);
263 c5f754cc 2019-02-01 stsp static char *
264 c5f754cc 2019-02-01 stsp get_refs_dir_path(struct got_repository *repo, const char *refname)
266 c5f754cc 2019-02-01 stsp if (is_well_known_ref(refname) || strncmp(refname, "refs/", 5) == 0)
267 6e9da951 2019-01-06 stsp return strdup(got_repo_get_path_git_dir(repo));
269 5261c201 2018-04-01 stsp return got_repo_get_path_refs(repo);
272 5892cdd6 2019-03-10 stsp const struct got_error *
273 5892cdd6 2019-03-10 stsp got_ref_alloc(struct got_reference **ref, const char *name,
274 5892cdd6 2019-03-10 stsp struct got_object_id *id)
276 63e5aa5c 2021-08-23 stsp if (!got_ref_name_is_valid(name))
277 24b5452a 2019-10-09 stsp return got_error_path(name, GOT_ERR_BAD_REF_NAME);
279 3f338f0a 2021-07-27 stsp return alloc_ref(ref, name, id, 0, 0);
282 aaf88317 2019-07-10 stsp const struct got_error *
283 aaf88317 2019-07-10 stsp got_ref_alloc_symref(struct got_reference **ref, const char *name,
284 aaf88317 2019-07-10 stsp struct got_reference *target_ref)
286 63e5aa5c 2021-08-23 stsp if (!got_ref_name_is_valid(name))
287 24b5452a 2019-10-09 stsp return got_error_path(name, GOT_ERR_BAD_REF_NAME);
289 aaf88317 2019-07-10 stsp return alloc_symref(ref, name, got_ref_get_name(target_ref), 0);
292 d1f2edc9 2018-06-13 stsp static const struct got_error *
293 fb79db15 2019-02-01 stsp parse_packed_ref_line(struct got_reference **ref, const char *abs_refname,
294 b54930d5 2023-02-28 op const char *line, time_t mtime, enum got_hash_algorithm algo)
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 87a3ab84 2023-02-23 op 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 b54930d5 2023-02-28 op int nsubdirs, const char *refname, time_t mtime,
320 b54930d5 2023-02-28 op enum got_hash_algorithm algo)
322 fb79db15 2019-02-01 stsp const struct got_error *err = NULL;
323 fb79db15 2019-02-01 stsp char *abs_refname;
324 9bdd68dd 2021-01-02 naddy char *line = NULL;
325 9bdd68dd 2021-01-02 naddy size_t linesize = 0;
326 9bdd68dd 2021-01-02 naddy ssize_t linelen;
327 0dec1cc0 2019-02-01 stsp int i, ref_is_absolute = (strncmp(refname, "refs/", 5) == 0);
329 1e37702e 2019-02-04 stsp *ref = NULL;
331 0dec1cc0 2019-02-01 stsp if (ref_is_absolute)
332 0dec1cc0 2019-02-01 stsp abs_refname = (char *)refname;
334 9bdd68dd 2021-01-02 naddy linelen = getline(&line, &linesize, f);
335 9bdd68dd 2021-01-02 naddy if (linelen == -1) {
336 7ab0422a 2019-03-15 stsp if (feof(f))
338 7ab0422a 2019-03-15 stsp err = got_ferror(f, GOT_ERR_BAD_REF_DATA);
341 9bdd68dd 2021-01-02 naddy if (linelen > 0 && line[linelen - 1] == '\n')
342 9bdd68dd 2021-01-02 naddy line[linelen - 1] = '\0';
343 0dec1cc0 2019-02-01 stsp for (i = 0; i < nsubdirs; i++) {
344 0dec1cc0 2019-02-01 stsp if (!ref_is_absolute &&
345 0dec1cc0 2019-02-01 stsp asprintf(&abs_refname, "refs/%s/%s", subdirs[i],
346 0dec1cc0 2019-02-01 stsp refname) == -1)
347 638f9024 2019-05-13 stsp return got_error_from_errno("asprintf");
348 3f338f0a 2021-07-27 stsp err = parse_packed_ref_line(ref, abs_refname, line,
349 b54930d5 2023-02-28 op mtime, algo);
350 0dec1cc0 2019-02-01 stsp if (!ref_is_absolute)
351 0dec1cc0 2019-02-01 stsp free(abs_refname);
352 532920c8 2019-02-01 stsp if (err || *ref != NULL)
357 fb79db15 2019-02-01 stsp } while (*ref == NULL);
358 9bdd68dd 2021-01-02 naddy free(line);
360 fb79db15 2019-02-01 stsp return err;
363 fb79db15 2019-02-01 stsp static const struct got_error *
364 d1f2edc9 2018-06-13 stsp open_ref(struct got_reference **ref, const char *path_refs, const char *subdir,
365 b54930d5 2023-02-28 op const char *name, int lock, enum got_hash_algorithm algo)
367 d1f2edc9 2018-06-13 stsp const struct got_error *err = NULL;
368 a04f49d2 2019-02-04 stsp char *path = NULL;
369 a04f49d2 2019-02-04 stsp char *absname = NULL;
370 a04f49d2 2019-02-04 stsp int ref_is_absolute = (strncmp(name, "refs/", 5) == 0);
371 75236079 2020-03-25 stsp int ref_is_well_known = (subdir[0] == '\0' && is_well_known_ref(name));
373 1e37702e 2019-02-04 stsp *ref = NULL;
375 63e5aa5c 2021-08-23 stsp if (!got_ref_name_is_valid(name))
376 57c18198 2021-05-24 stsp return got_error_path(name, GOT_ERR_BAD_REF_NAME);
378 a04f49d2 2019-02-04 stsp if (ref_is_absolute || ref_is_well_known) {
379 a04f49d2 2019-02-04 stsp if (asprintf(&path, "%s/%s", path_refs, name) == -1)
380 638f9024 2019-05-13 stsp return got_error_from_errno("asprintf");
381 a04f49d2 2019-02-04 stsp absname = (char *)name;
383 58908ed0 2019-03-11 stsp if (asprintf(&path, "%s/%s%s%s", path_refs, subdir,
384 58908ed0 2019-03-11 stsp subdir[0] ? "/" : "", name) == -1)
385 638f9024 2019-05-13 stsp return got_error_from_errno("asprintf");
387 58908ed0 2019-03-11 stsp if (asprintf(&absname, "refs/%s%s%s",
388 58908ed0 2019-03-11 stsp subdir, subdir[0] ? "/" : "", name) == -1) {
389 638f9024 2019-05-13 stsp err = got_error_from_errno("asprintf");
394 b54930d5 2023-02-28 op err = parse_ref_file(ref, name, absname, path, lock, algo);
396 a04f49d2 2019-02-04 stsp if (!ref_is_absolute && !ref_is_well_known)
397 a04f49d2 2019-02-04 stsp free(absname);
398 a04f49d2 2019-02-04 stsp free(path);
399 d1f2edc9 2018-06-13 stsp return err;
402 5261c201 2018-04-01 stsp const struct got_error *
403 5261c201 2018-04-01 stsp got_ref_open(struct got_reference **ref, struct got_repository *repo,
404 abc59930 2021-09-05 naddy const char *refname, int lock)
406 5261c201 2018-04-01 stsp const struct got_error *err = NULL;
407 c3821bef 2022-07-21 florian char *packed_refs_path = NULL, *path_refs = NULL;
408 fb79db15 2019-02-01 stsp const char *subdirs[] = {
409 fb79db15 2019-02-01 stsp GOT_REF_HEADS, GOT_REF_TAGS, GOT_REF_REMOTES
412 16aeacf7 2020-11-26 stsp int well_known = is_well_known_ref(refname);
413 a875589a 2019-05-12 stsp struct got_lockfile *lf = NULL;
415 1e37702e 2019-02-04 stsp *ref = NULL;
417 e135804e 2019-02-10 stsp path_refs = get_refs_dir_path(repo, refname);
418 e135804e 2019-02-10 stsp if (path_refs == NULL) {
419 638f9024 2019-05-13 stsp err = got_error_from_errno2("get_refs_dir_path", refname);
423 0885ce8f 2019-05-12 stsp if (well_known) {
424 b54930d5 2023-02-28 op err = open_ref(ref, path_refs, "", refname, lock,
425 b54930d5 2023-02-28 op got_repo_get_object_format(repo));
429 e135804e 2019-02-10 stsp /* Search on-disk refs before packed refs! */
430 e135804e 2019-02-10 stsp for (i = 0; i < nitems(subdirs); i++) {
431 2f17228e 2019-05-12 stsp err = open_ref(ref, path_refs, subdirs[i], refname,
432 b54930d5 2023-02-28 op lock, got_repo_get_object_format(repo));
433 b2070a3f 2020-03-22 stsp if ((err && err->code != GOT_ERR_NOT_REF) || *ref)
437 c5f754cc 2019-02-01 stsp packed_refs_path = got_repo_get_path_packed_refs(repo);
438 e135804e 2019-02-10 stsp if (packed_refs_path == NULL) {
439 638f9024 2019-05-13 stsp err = got_error_from_errno(
440 230a42bd 2019-05-11 jcs "got_repo_get_path_packed_refs");
444 2f17228e 2019-05-12 stsp if (lock) {
445 5345b4c7 2021-07-06 stsp err = got_lockfile_lock(&lf, packed_refs_path, -1);
449 00fe21f2 2021-12-31 stsp f = fopen(packed_refs_path, "rbe");
450 c5f754cc 2019-02-01 stsp if (f != NULL) {
451 3f338f0a 2021-07-27 stsp struct stat sb;
452 3f338f0a 2021-07-27 stsp if (fstat(fileno(f), &sb) == -1) {
453 3f338f0a 2021-07-27 stsp err = got_error_from_errno2("fstat",
454 3f338f0a 2021-07-27 stsp packed_refs_path);
457 0dec1cc0 2019-02-01 stsp err = open_packed_ref(ref, f, subdirs, nitems(subdirs),
458 b54930d5 2023-02-28 op refname, sb.st_mtime,
459 b54930d5 2023-02-28 op got_repo_get_object_format(repo));
460 a875589a 2019-05-12 stsp if (!err) {
461 56b63ca4 2021-01-22 stsp if (fclose(f) == EOF) {
462 638f9024 2019-05-13 stsp err = got_error_from_errno("fclose");
463 a875589a 2019-05-12 stsp got_ref_close(*ref);
464 a875589a 2019-05-12 stsp *ref = NULL;
465 6e472abb 2019-05-13 stsp } else if (*ref)
466 a875589a 2019-05-12 stsp (*ref)->lf = lf;
471 5b575c25 2019-05-12 stsp if (!err && *ref == NULL)
472 1e37702e 2019-02-04 stsp err = got_error_not_ref(refname);
473 a875589a 2019-05-12 stsp if (err && lf)
474 5345b4c7 2021-07-06 stsp got_lockfile_unlock(lf, -1);
475 c3821bef 2022-07-21 florian free(packed_refs_path);
476 5261c201 2018-04-01 stsp free(path_refs);
477 5261c201 2018-04-01 stsp return err;
481 5261c201 2018-04-01 stsp got_ref_close(struct got_reference *ref)
483 e09d28b1 2019-03-15 stsp if (ref->flags & GOT_REF_IS_SYMBOLIC) {
484 5261c201 2018-04-01 stsp free(ref->ref.symref.name);
485 e09d28b1 2019-03-15 stsp free(ref->ref.symref.ref);
487 5261c201 2018-04-01 stsp free(ref->ref.ref.name);
491 5261c201 2018-04-01 stsp struct got_reference *
492 5261c201 2018-04-01 stsp got_ref_dup(struct got_reference *ref)
494 5261c201 2018-04-01 stsp struct got_reference *ret;
496 5261c201 2018-04-01 stsp ret = calloc(1, sizeof(*ret));
497 5261c201 2018-04-01 stsp if (ret == NULL)
498 5261c201 2018-04-01 stsp return NULL;
500 5261c201 2018-04-01 stsp ret->flags = ref->flags;
501 5261c201 2018-04-01 stsp if (ref->flags & GOT_REF_IS_SYMBOLIC) {
502 5261c201 2018-04-01 stsp ret->ref.symref.name = strdup(ref->ref.symref.name);
503 5261c201 2018-04-01 stsp if (ret->ref.symref.name == NULL) {
505 5261c201 2018-04-01 stsp return NULL;
507 5261c201 2018-04-01 stsp ret->ref.symref.ref = strdup(ref->ref.symref.ref);
508 5261c201 2018-04-01 stsp if (ret->ref.symref.ref == NULL) {
509 5261c201 2018-04-01 stsp free(ret->ref.symref.name);
511 5261c201 2018-04-01 stsp return NULL;
514 4c4ce67b 2020-12-25 stsp ret->ref.ref.name = strdup(ref->ref.ref.name);
515 4c4ce67b 2020-12-25 stsp if (ret->ref.ref.name == NULL) {
517 5261c201 2018-04-01 stsp return NULL;
519 faf5b56f 2023-01-31 op memcpy(&ret->ref.ref.id, &ref->ref.ref.id,
520 faf5b56f 2023-01-31 op sizeof(ret->ref.ref.id));
523 5261c201 2018-04-01 stsp return ret;
526 b8bad2ba 2019-08-23 stsp const struct got_error *
527 b8bad2ba 2019-08-23 stsp got_reflist_entry_dup(struct got_reflist_entry **newp,
528 b8bad2ba 2019-08-23 stsp struct got_reflist_entry *re)
530 b8bad2ba 2019-08-23 stsp const struct got_error *err = NULL;
531 b8bad2ba 2019-08-23 stsp struct got_reflist_entry *new;
533 b8bad2ba 2019-08-23 stsp *newp = NULL;
535 b8bad2ba 2019-08-23 stsp new = malloc(sizeof(*new));
536 b8bad2ba 2019-08-23 stsp if (new == NULL)
537 b8bad2ba 2019-08-23 stsp return got_error_from_errno("malloc");
539 b8bad2ba 2019-08-23 stsp new->ref = got_ref_dup(re->ref);
540 b8bad2ba 2019-08-23 stsp if (new->ref == NULL) {
541 b8bad2ba 2019-08-23 stsp err = got_error_from_errno("got_ref_dup");
543 b8bad2ba 2019-08-23 stsp return err;
546 b8bad2ba 2019-08-23 stsp *newp = new;
547 b8bad2ba 2019-08-23 stsp return NULL;
550 cce2f485 2021-08-22 stsp const struct got_error *
551 cce2f485 2021-08-22 stsp got_ref_resolve_symbolic(struct got_reference **resolved,
552 5261c201 2018-04-01 stsp struct got_repository *repo, struct got_reference *ref)
554 5261c201 2018-04-01 stsp struct got_reference *nextref;
555 5261c201 2018-04-01 stsp const struct got_error *err;
557 2f17228e 2019-05-12 stsp err = got_ref_open(&nextref, repo, ref->ref.symref.ref, 0);
559 5261c201 2018-04-01 stsp return err;
561 5261c201 2018-04-01 stsp if (nextref->flags & GOT_REF_IS_SYMBOLIC)
562 cce2f485 2021-08-22 stsp err = got_ref_resolve_symbolic(resolved, repo, nextref);
564 5261c201 2018-04-01 stsp *resolved = got_ref_dup(nextref);
566 5261c201 2018-04-01 stsp got_ref_close(nextref);
567 5261c201 2018-04-01 stsp return err;
570 29e86f7a 2019-08-12 stsp static const struct got_error *
571 29e86f7a 2019-08-12 stsp ref_resolve(struct got_object_id **id, struct got_repository *repo,
572 29e86f7a 2019-08-12 stsp struct got_reference *ref, int recursion)
574 5261c201 2018-04-01 stsp const struct got_error *err;
576 29e86f7a 2019-08-12 stsp if (recursion <= 0)
577 29e86f7a 2019-08-12 stsp return got_error_msg(GOT_ERR_RECURSION,
578 29e86f7a 2019-08-12 stsp "reference recursion limit reached");
580 5261c201 2018-04-01 stsp if (ref->flags & GOT_REF_IS_SYMBOLIC) {
581 5261c201 2018-04-01 stsp struct got_reference *resolved = NULL;
582 cce2f485 2021-08-22 stsp err = got_ref_resolve_symbolic(&resolved, repo, ref);
583 5261c201 2018-04-01 stsp if (err == NULL)
584 29e86f7a 2019-08-12 stsp err = ref_resolve(id, repo, resolved, --recursion);
585 57b6f99a 2019-04-13 stsp if (resolved)
586 57b6f99a 2019-04-13 stsp got_ref_close(resolved);
587 5261c201 2018-04-01 stsp return err;
590 5261c201 2018-04-01 stsp *id = calloc(1, sizeof(**id));
591 5261c201 2018-04-01 stsp if (*id == NULL)
592 638f9024 2019-05-13 stsp return got_error_from_errno("calloc");
593 faf5b56f 2023-01-31 op memcpy(*id, &ref->ref.ref.id, sizeof(**id));
594 5261c201 2018-04-01 stsp return NULL;
597 29e86f7a 2019-08-12 stsp const struct got_error *
598 29e86f7a 2019-08-12 stsp got_ref_resolve(struct got_object_id **id, struct got_repository *repo,
599 29e86f7a 2019-08-12 stsp struct got_reference *ref)
601 29e86f7a 2019-08-12 stsp return ref_resolve(id, repo, ref, GOT_REF_RECURSE_MAX);
605 5261c201 2018-04-01 stsp got_ref_to_str(struct got_reference *ref)
609 271d2a38 2018-12-25 stsp if (ref->flags & GOT_REF_IS_SYMBOLIC)
610 271d2a38 2018-12-25 stsp return strdup(ref->ref.symref.ref);
612 faf5b56f 2023-01-31 op if (got_object_id_str(&str, &ref->ref.ref.id) != NULL)
613 271d2a38 2018-12-25 stsp return NULL;
615 5261c201 2018-04-01 stsp return str;
618 0bd18d37 2019-02-01 stsp const char *
619 0bd18d37 2019-02-01 stsp got_ref_get_name(struct got_reference *ref)
621 0bd18d37 2019-02-01 stsp if (ref->flags & GOT_REF_IS_SYMBOLIC)
622 0bd18d37 2019-02-01 stsp return ref->ref.symref.name;
624 0bd18d37 2019-02-01 stsp return ref->ref.ref.name;
627 aaf88317 2019-07-10 stsp const char *
628 aaf88317 2019-07-10 stsp got_ref_get_symref_target(struct got_reference *ref)
630 aaf88317 2019-07-10 stsp if (ref->flags & GOT_REF_IS_SYMBOLIC)
631 aaf88317 2019-07-10 stsp return ref->ref.symref.ref;
633 b8bad2ba 2019-08-23 stsp return NULL;
637 3f338f0a 2021-07-27 stsp got_ref_get_mtime(struct got_reference *ref)
639 3f338f0a 2021-07-27 stsp return ref->mtime;
642 b8bad2ba 2019-08-23 stsp const struct got_error *
643 b8bad2ba 2019-08-23 stsp got_ref_cmp_by_name(void *arg, int *cmp, struct got_reference *re1,
644 b8bad2ba 2019-08-23 stsp struct got_reference* re2)
646 b8bad2ba 2019-08-23 stsp const char *name1 = got_ref_get_name(re1);
647 b8bad2ba 2019-08-23 stsp const char *name2 = got_ref_get_name(re2);
649 b8bad2ba 2019-08-23 stsp *cmp = got_path_cmp(name1, name2, strlen(name1), strlen(name2));
650 aaf88317 2019-07-10 stsp return NULL;
653 d1f16636 2020-01-15 stsp const struct got_error *
654 d1f16636 2020-01-15 stsp got_ref_cmp_tags(void *arg, int *cmp, struct got_reference *ref1,
655 d1f16636 2020-01-15 stsp struct got_reference *ref2)
657 d1f16636 2020-01-15 stsp const struct got_error *err = NULL;
658 d1f16636 2020-01-15 stsp struct got_repository *repo = arg;
659 d1f16636 2020-01-15 stsp struct got_object_id *id1, *id2 = NULL;
660 d1f16636 2020-01-15 stsp struct got_tag_object *tag1 = NULL, *tag2 = NULL;
661 d1f16636 2020-01-15 stsp struct got_commit_object *commit1 = NULL, *commit2 = NULL;
662 d1f16636 2020-01-15 stsp time_t time1, time2;
666 d1f16636 2020-01-15 stsp err = got_ref_resolve(&id1, repo, ref1);
668 d1f16636 2020-01-15 stsp return err;
669 d1f16636 2020-01-15 stsp err = got_object_open_as_tag(&tag1, repo, id1);
671 d1f16636 2020-01-15 stsp if (err->code != GOT_ERR_OBJ_TYPE)
673 d1f16636 2020-01-15 stsp /* "lightweight" tag */
674 d1f16636 2020-01-15 stsp err = got_object_open_as_commit(&commit1, repo, id1);
677 d1f16636 2020-01-15 stsp time1 = got_object_commit_get_committer_time(commit1);
679 d1f16636 2020-01-15 stsp time1 = got_object_tag_get_tagger_time(tag1);
681 d1f16636 2020-01-15 stsp err = got_ref_resolve(&id2, repo, ref2);
684 d1f16636 2020-01-15 stsp err = got_object_open_as_tag(&tag2, repo, id2);
686 d1f16636 2020-01-15 stsp if (err->code != GOT_ERR_OBJ_TYPE)
688 d1f16636 2020-01-15 stsp /* "lightweight" tag */
689 d1f16636 2020-01-15 stsp err = got_object_open_as_commit(&commit2, repo, id2);
692 d1f16636 2020-01-15 stsp time2 = got_object_commit_get_committer_time(commit2);
694 d1f16636 2020-01-15 stsp time2 = got_object_tag_get_tagger_time(tag2);
696 d1f16636 2020-01-15 stsp /* Put latest tags first. */
697 d1f16636 2020-01-15 stsp if (time1 < time2)
699 d1f16636 2020-01-15 stsp else if (time1 > time2)
702 d1f16636 2020-01-15 stsp err = got_ref_cmp_by_name(NULL, cmp, ref2, ref1);
707 d1f16636 2020-01-15 stsp got_object_tag_close(tag1);
709 d1f16636 2020-01-15 stsp got_object_tag_close(tag2);
710 e600f124 2021-03-21 stsp if (commit1)
711 e600f124 2021-03-21 stsp got_object_commit_close(commit1);
712 e600f124 2021-03-21 stsp if (commit2)
713 e600f124 2021-03-21 stsp got_object_commit_close(commit2);
714 7f66531d 2021-11-16 stsp return err;
717 7f66531d 2021-11-16 stsp static const struct got_error *
718 7f66531d 2021-11-16 stsp get_committer_time(struct got_reference *ref, struct got_repository *repo)
720 7f66531d 2021-11-16 stsp const struct got_error *err = NULL;
721 7f66531d 2021-11-16 stsp int obj_type;
722 7f66531d 2021-11-16 stsp struct got_commit_object *commit = NULL;
723 7f66531d 2021-11-16 stsp struct got_tag_object *tag = NULL;
724 7f66531d 2021-11-16 stsp struct got_object_id *id = NULL;
726 7f66531d 2021-11-16 stsp err = got_ref_resolve(&id, repo, ref);
728 7f66531d 2021-11-16 stsp return err;
730 7f66531d 2021-11-16 stsp err = got_object_get_type(&obj_type, repo, id);
734 7f66531d 2021-11-16 stsp switch (obj_type) {
735 7f66531d 2021-11-16 stsp case GOT_OBJ_TYPE_COMMIT:
736 7f66531d 2021-11-16 stsp err = got_object_open_as_commit(&commit, repo, id);
739 7f66531d 2021-11-16 stsp ref->committer_time =
740 7f66531d 2021-11-16 stsp got_object_commit_get_committer_time(commit);
742 7f66531d 2021-11-16 stsp case GOT_OBJ_TYPE_TAG:
743 7f66531d 2021-11-16 stsp err = got_object_open_as_tag(&tag, repo, id);
746 7f66531d 2021-11-16 stsp ref->committer_time = got_object_tag_get_tagger_time(tag);
749 7f66531d 2021-11-16 stsp /* best effort for other object types */
750 7f66531d 2021-11-16 stsp ref->committer_time = got_ref_get_mtime(ref);
755 7f66531d 2021-11-16 stsp if (commit)
756 7f66531d 2021-11-16 stsp got_object_commit_close(commit);
758 7f66531d 2021-11-16 stsp got_object_tag_close(tag);
759 e600f124 2021-03-21 stsp return err;
762 e600f124 2021-03-21 stsp const struct got_error *
763 e600f124 2021-03-21 stsp got_ref_cmp_by_commit_timestamp_descending(void *arg, int *cmp,
764 e600f124 2021-03-21 stsp struct got_reference *ref1, struct got_reference *ref2)
766 0309152a 2021-11-20 stsp const struct got_error *err = NULL;
767 e600f124 2021-03-21 stsp struct got_repository *repo = arg;
771 2c9e323b 2021-10-10 stsp if (ref1->committer_time == 0) {
772 7f66531d 2021-11-16 stsp err = get_committer_time(ref1, repo);
774 2c9e323b 2021-10-10 stsp return err;
776 7f66531d 2021-11-16 stsp if (ref2->committer_time == 0) {
777 7f66531d 2021-11-16 stsp err = get_committer_time(ref2, repo);
779 2c9e323b 2021-10-10 stsp return err;
782 2c9e323b 2021-10-10 stsp if (ref1->committer_time < ref2->committer_time)
784 2c9e323b 2021-10-10 stsp else if (ref2->committer_time < ref1->committer_time)
787 42864987 2021-11-20 stsp return got_ref_cmp_by_name(arg, cmp, ref1, ref2);
789 d1f16636 2020-01-15 stsp return err;
792 779e1159 2021-06-18 stsp const struct got_error *
793 c0df5966 2021-12-31 stsp got_reflist_insert(struct got_reflist_entry **newp,
794 c0df5966 2021-12-31 stsp struct got_reflist_head *refs, struct got_reference *ref,
795 c0df5966 2021-12-31 stsp got_ref_cmp_cb cmp_cb, void *cmp_arg)
797 199a4027 2019-02-02 stsp const struct got_error *err;
798 d9dff0e5 2020-12-26 stsp struct got_reflist_entry *new, *re;
801 505287be 2019-03-15 stsp *newp = NULL;
803 3d8e0c5e 2022-09-05 stsp if (cmp_cb != got_ref_cmp_by_name && (ref->flags & GOT_REF_IS_PACKED)) {
805 7db2b0dd 2022-09-05 stsp * If we are not sorting elements by name then we must still
806 7db2b0dd 2022-09-05 stsp * detect collisions between a packed ref and an on-disk ref
807 7db2b0dd 2022-09-05 stsp * using the same name. On-disk refs take precedence and are
808 7db2b0dd 2022-09-05 stsp * already present on the list before packed refs get added.
810 7db2b0dd 2022-09-05 stsp TAILQ_FOREACH(re, refs, entry) {
811 3d8e0c5e 2022-09-05 stsp err = got_ref_cmp_by_name(NULL, &cmp, re->ref, ref);
813 7db2b0dd 2022-09-05 stsp return err;
814 3d8e0c5e 2022-09-05 stsp if (cmp == 0)
815 7db2b0dd 2022-09-05 stsp return NULL;
819 3d8e0c5e 2022-09-05 stsp new = malloc(sizeof(*new));
820 3d8e0c5e 2022-09-05 stsp if (new == NULL)
821 3d8e0c5e 2022-09-05 stsp return got_error_from_errno("malloc");
822 3d8e0c5e 2022-09-05 stsp new->ref = ref;
823 3d8e0c5e 2022-09-05 stsp *newp = new;
826 29b5c214 2019-02-04 stsp * We must de-duplicate entries on insert because packed-refs may
827 29b5c214 2019-02-04 stsp * contain redundant entries. On-disk refs take precedence.
828 29b5c214 2019-02-04 stsp * This code assumes that on-disk revs are read before packed-refs.
829 e397b6db 2019-02-04 stsp * We're iterating the list anyway, so insert elements sorted by name.
831 d9dff0e5 2020-12-26 stsp * Many callers will provide paths in a somewhat sorted order.
832 d9dff0e5 2020-12-26 stsp * Iterating backwards from the tail of the list should be more
833 d9dff0e5 2020-12-26 stsp * efficient than traversing through the entire list each time
834 d9dff0e5 2020-12-26 stsp * an element is inserted.
836 d9dff0e5 2020-12-26 stsp re = TAILQ_LAST(refs, got_reflist_head);
837 7a3c76f5 2019-02-05 stsp while (re) {
838 b8bad2ba 2019-08-23 stsp err = (*cmp_cb)(cmp_arg, &cmp, re->ref, new->ref);
840 b8bad2ba 2019-08-23 stsp return err;
841 e397b6db 2019-02-04 stsp if (cmp == 0) {
842 27a1ed03 2019-03-15 stsp /* duplicate */
844 505287be 2019-03-15 stsp *newp = NULL;
845 7a3c76f5 2019-02-05 stsp return NULL;
846 d9dff0e5 2020-12-26 stsp } else if (cmp < 0) {
847 d9dff0e5 2020-12-26 stsp TAILQ_INSERT_AFTER(refs, re, new, entry);
848 7a3c76f5 2019-02-05 stsp return NULL;
850 d9dff0e5 2020-12-26 stsp re = TAILQ_PREV(re, got_reflist_head, entry);
853 d9dff0e5 2020-12-26 stsp TAILQ_INSERT_HEAD(refs, new, entry);
854 199a4027 2019-02-02 stsp return NULL;
857 2d497592 2021-11-20 stsp const struct got_error *
858 2d497592 2021-11-20 stsp got_reflist_sort(struct got_reflist_head *refs,
859 2d497592 2021-11-20 stsp got_ref_cmp_cb cmp_cb, void *cmp_arg)
861 2d497592 2021-11-20 stsp const struct got_error *err = NULL;
862 2d497592 2021-11-20 stsp struct got_reflist_entry *re, *tmp, *new;
863 2d497592 2021-11-20 stsp struct got_reflist_head sorted;
865 2d497592 2021-11-20 stsp TAILQ_INIT(&sorted);
867 2d497592 2021-11-20 stsp TAILQ_FOREACH_SAFE(re, refs, entry, tmp) {
868 2d497592 2021-11-20 stsp struct got_reference *ref = re->ref;
869 2d497592 2021-11-20 stsp TAILQ_REMOVE(refs, re, entry);
871 2d497592 2021-11-20 stsp err = got_reflist_insert(&new, &sorted, ref, cmp_cb, cmp_arg);
872 2d497592 2021-11-20 stsp if (err || new == NULL /* duplicate */)
873 2d497592 2021-11-20 stsp got_ref_close(ref);
875 2d497592 2021-11-20 stsp return err;
878 2d497592 2021-11-20 stsp TAILQ_CONCAT(refs, &sorted, entry);
879 2d497592 2021-11-20 stsp return NULL;
882 a04f49d2 2019-02-04 stsp static const struct got_error *
883 29b5c214 2019-02-04 stsp gather_on_disk_refs(struct got_reflist_head *refs, const char *path_refs,
884 b8bad2ba 2019-08-23 stsp const char *subdir, struct got_repository *repo,
885 b8bad2ba 2019-08-23 stsp got_ref_cmp_cb cmp_cb, void *cmp_arg)
887 a04f49d2 2019-02-04 stsp const struct got_error *err = NULL;
888 a04f49d2 2019-02-04 stsp DIR *d = NULL;
889 a04f49d2 2019-02-04 stsp char *path_subdir;
891 b2070a3f 2020-03-22 stsp while (subdir[0] == '/')
894 a04f49d2 2019-02-04 stsp if (asprintf(&path_subdir, "%s/%s", path_refs, subdir) == -1)
895 638f9024 2019-05-13 stsp return got_error_from_errno("asprintf");
897 a04f49d2 2019-02-04 stsp d = opendir(path_subdir);
898 a04f49d2 2019-02-04 stsp if (d == NULL)
902 a04f49d2 2019-02-04 stsp struct dirent *dent;
903 a04f49d2 2019-02-04 stsp struct got_reference *ref;
904 a04f49d2 2019-02-04 stsp char *child;
907 a04f49d2 2019-02-04 stsp dent = readdir(d);
908 a04f49d2 2019-02-04 stsp if (dent == NULL)
911 a04f49d2 2019-02-04 stsp if (strcmp(dent->d_name, ".") == 0 ||
912 a04f49d2 2019-02-04 stsp strcmp(dent->d_name, "..") == 0)
915 20ccae39 2020-07-21 stsp err = got_path_dirent_type(&type, path_subdir, dent);
919 20ccae39 2020-07-21 stsp switch (type) {
920 a04f49d2 2019-02-04 stsp case DT_REG:
921 2f17228e 2019-05-12 stsp err = open_ref(&ref, path_refs, subdir, dent->d_name,
922 b54930d5 2023-02-28 op 0, got_repo_get_object_format(repo));
923 2f3ccc5f 2023-06-16 op if (err && err->code == GOT_ERR_BAD_REF_NAME)
928 505287be 2019-03-15 stsp struct got_reflist_entry *new;
929 72acb3d8 2021-08-06 stsp err = got_reflist_insert(&new, refs, ref,
930 b8bad2ba 2019-08-23 stsp cmp_cb, cmp_arg);
931 505287be 2019-03-15 stsp if (err || new == NULL /* duplicate */)
932 505287be 2019-03-15 stsp got_ref_close(ref);
937 a04f49d2 2019-02-04 stsp case DT_DIR:
938 a04f49d2 2019-02-04 stsp if (asprintf(&child, "%s%s%s", subdir,
939 a04f49d2 2019-02-04 stsp subdir[0] == '\0' ? "" : "/", dent->d_name) == -1) {
940 638f9024 2019-05-13 stsp err = got_error_from_errno("asprintf");
943 b8bad2ba 2019-08-23 stsp err = gather_on_disk_refs(refs, path_refs, child, repo,
944 b8bad2ba 2019-08-23 stsp cmp_cb, cmp_arg);
945 a04f49d2 2019-02-04 stsp free(child);
953 a04f49d2 2019-02-04 stsp closedir(d);
954 a04f49d2 2019-02-04 stsp free(path_subdir);
955 a04f49d2 2019-02-04 stsp return err;
958 199a4027 2019-02-02 stsp const struct got_error *
959 29606af7 2019-08-23 stsp got_ref_list(struct got_reflist_head *refs, struct got_repository *repo,
960 b8bad2ba 2019-08-23 stsp const char *ref_namespace, got_ref_cmp_cb cmp_cb, void *cmp_arg)
962 199a4027 2019-02-02 stsp const struct got_error *err;
963 c3821bef 2022-07-21 florian char *packed_refs_path = NULL, *path_refs = NULL;
964 58e31a80 2022-06-27 op char *abs_namespace = NULL, *buf = NULL;
965 58e31a80 2022-06-27 op const char *ondisk_ref_namespace = NULL;
966 9bdd68dd 2021-01-02 naddy char *line = NULL;
967 29b5c214 2019-02-04 stsp FILE *f = NULL;
968 199a4027 2019-02-02 stsp struct got_reference *ref;
969 505287be 2019-03-15 stsp struct got_reflist_entry *new;
971 29606af7 2019-08-23 stsp if (ref_namespace == NULL || ref_namespace[0] == '\0') {
972 29606af7 2019-08-23 stsp path_refs = get_refs_dir_path(repo, GOT_REF_HEAD);
973 29606af7 2019-08-23 stsp if (path_refs == NULL) {
974 29606af7 2019-08-23 stsp err = got_error_from_errno("get_refs_dir_path");
977 b54930d5 2023-02-28 op err = open_ref(&ref, path_refs, "", GOT_REF_HEAD, 0,
978 b54930d5 2023-02-28 op got_repo_get_object_format(repo));
981 72acb3d8 2021-08-06 stsp err = got_reflist_insert(&new, refs, ref, cmp_cb, cmp_arg);
982 29606af7 2019-08-23 stsp if (err || new == NULL /* duplicate */)
983 29606af7 2019-08-23 stsp got_ref_close(ref);
984 f68a7890 2020-03-19 stsp if (err && err->code != GOT_ERR_NOT_REF)
987 b2070a3f 2020-03-22 stsp /* Try listing a single reference. */
988 b2070a3f 2020-03-22 stsp const char *refname = ref_namespace;
989 b2070a3f 2020-03-22 stsp path_refs = get_refs_dir_path(repo, refname);
990 b2070a3f 2020-03-22 stsp if (path_refs == NULL) {
991 b2070a3f 2020-03-22 stsp err = got_error_from_errno("get_refs_dir_path");
994 b54930d5 2023-02-28 op err = open_ref(&ref, path_refs, "", refname, 0,
995 b54930d5 2023-02-28 op got_repo_get_object_format(repo));
997 b2070a3f 2020-03-22 stsp if (err->code != GOT_ERR_NOT_REF)
999 b2070a3f 2020-03-22 stsp /* Try to look up references in a given namespace. */
1001 72acb3d8 2021-08-06 stsp err = got_reflist_insert(&new, refs, ref,
1002 b2070a3f 2020-03-22 stsp cmp_cb, cmp_arg);
1003 b2070a3f 2020-03-22 stsp if (err || new == NULL /* duplicate */)
1004 b2070a3f 2020-03-22 stsp got_ref_close(ref);
1005 b2070a3f 2020-03-22 stsp return err;
1009 b2070a3f 2020-03-22 stsp if (ref_namespace) {
1010 b2070a3f 2020-03-22 stsp size_t len;
1011 b2070a3f 2020-03-22 stsp /* Canonicalize the path to eliminate double-slashes if any. */
1012 b2070a3f 2020-03-22 stsp if (asprintf(&abs_namespace, "/%s", ref_namespace) == -1) {
1013 b2070a3f 2020-03-22 stsp err = got_error_from_errno("asprintf");
1014 b2070a3f 2020-03-22 stsp goto done;
1016 b2070a3f 2020-03-22 stsp len = strlen(abs_namespace) + 1;
1017 b2070a3f 2020-03-22 stsp buf = malloc(len);
1018 b2070a3f 2020-03-22 stsp if (buf == NULL) {
1019 b2070a3f 2020-03-22 stsp err = got_error_from_errno("malloc");
1020 b2070a3f 2020-03-22 stsp goto done;
1022 b2070a3f 2020-03-22 stsp err = got_canonpath(abs_namespace, buf, len);
1024 b2070a3f 2020-03-22 stsp goto done;
1025 b2070a3f 2020-03-22 stsp ondisk_ref_namespace = buf;
1026 b2070a3f 2020-03-22 stsp while (ondisk_ref_namespace[0] == '/')
1027 b2070a3f 2020-03-22 stsp ondisk_ref_namespace++;
1028 b2070a3f 2020-03-22 stsp if (strncmp(ondisk_ref_namespace, "refs/", 5) == 0)
1029 b2070a3f 2020-03-22 stsp ondisk_ref_namespace += 5;
1030 b2070a3f 2020-03-22 stsp else if (strcmp(ondisk_ref_namespace, "refs") == 0)
1031 b2070a3f 2020-03-22 stsp ondisk_ref_namespace = "";
1034 29b5c214 2019-02-04 stsp /* Gather on-disk refs before parsing packed-refs. */
1035 29b5c214 2019-02-04 stsp free(path_refs);
1036 29b5c214 2019-02-04 stsp path_refs = get_refs_dir_path(repo, "");
1037 29b5c214 2019-02-04 stsp if (path_refs == NULL) {
1038 638f9024 2019-05-13 stsp err = got_error_from_errno("get_refs_dir_path");
1039 29b5c214 2019-02-04 stsp goto done;
1041 29606af7 2019-08-23 stsp err = gather_on_disk_refs(refs, path_refs,
1042 6aeab596 2019-08-28 stsp ondisk_ref_namespace ? ondisk_ref_namespace : "", repo,
1043 6aeab596 2019-08-28 stsp cmp_cb, cmp_arg);
1045 29b5c214 2019-02-04 stsp goto done;
1048 29b5c214 2019-02-04 stsp * The packed-refs file may contain redundant entries, in which
1049 29b5c214 2019-02-04 stsp * case on-disk refs take precedence.
1051 199a4027 2019-02-02 stsp packed_refs_path = got_repo_get_path_packed_refs(repo);
1052 29b5c214 2019-02-04 stsp if (packed_refs_path == NULL) {
1053 638f9024 2019-05-13 stsp err = got_error_from_errno("got_repo_get_path_packed_refs");
1054 29b5c214 2019-02-04 stsp goto done;
1057 00fe21f2 2021-12-31 stsp f = fopen(packed_refs_path, "re");
1059 7a90b680 2021-01-02 naddy size_t linesize = 0;
1060 9bdd68dd 2021-01-02 naddy ssize_t linelen;
1061 3f338f0a 2021-07-27 stsp struct stat sb;
1063 3f338f0a 2021-07-27 stsp if (fstat(fileno(f), &sb) == -1) {
1064 3f338f0a 2021-07-27 stsp err = got_error_from_errno2("fstat", packed_refs_path);
1065 3f338f0a 2021-07-27 stsp goto done;
1068 9bdd68dd 2021-01-02 naddy linelen = getline(&line, &linesize, f);
1069 9bdd68dd 2021-01-02 naddy if (linelen == -1) {
1070 0bb4abae 2019-03-15 stsp if (feof(f))
1072 0bb4abae 2019-03-15 stsp err = got_ferror(f, GOT_ERR_BAD_REF_DATA);
1073 0bb4abae 2019-03-15 stsp goto done;
1075 9bdd68dd 2021-01-02 naddy if (linelen > 0 && line[linelen - 1] == '\n')
1076 9bdd68dd 2021-01-02 naddy line[linelen - 1] = '\0';
1077 3f338f0a 2021-07-27 stsp err = parse_packed_ref_line(&ref, NULL, line,
1078 b54930d5 2023-02-28 op sb.st_mtime, got_repo_get_object_format(repo));
1080 199a4027 2019-02-02 stsp goto done;
1081 76b4ead2 2019-02-03 stsp if (ref) {
1082 29606af7 2019-08-23 stsp if (ref_namespace) {
1083 29606af7 2019-08-23 stsp const char *name;
1084 29606af7 2019-08-23 stsp name = got_ref_get_name(ref);
1085 b2070a3f 2020-03-22 stsp if (!got_path_is_child(name,
1086 b2070a3f 2020-03-22 stsp ref_namespace,
1087 b2070a3f 2020-03-22 stsp strlen(ref_namespace))) {
1088 29606af7 2019-08-23 stsp got_ref_close(ref);
1092 72acb3d8 2021-08-06 stsp err = got_reflist_insert(&new, refs, ref,
1093 b8bad2ba 2019-08-23 stsp cmp_cb, cmp_arg);
1094 505287be 2019-03-15 stsp if (err || new == NULL /* duplicate */)
1095 505287be 2019-03-15 stsp got_ref_close(ref);
1097 76b4ead2 2019-02-03 stsp goto done;
1102 c3821bef 2022-07-21 florian free(packed_refs_path);
1103 b2070a3f 2020-03-22 stsp free(abs_namespace);
1104 b2070a3f 2020-03-22 stsp free(buf);
1105 9bdd68dd 2021-01-02 naddy free(line);
1106 a04f49d2 2019-02-04 stsp free(path_refs);
1107 56b63ca4 2021-01-22 stsp if (f && fclose(f) == EOF && err == NULL)
1108 638f9024 2019-05-13 stsp err = got_error_from_errno("fclose");
1109 199a4027 2019-02-02 stsp return err;
1113 e2e879a0 2019-03-11 stsp got_ref_list_free(struct got_reflist_head *refs)
1115 e2e879a0 2019-03-11 stsp struct got_reflist_entry *re;
1117 d9dff0e5 2020-12-26 stsp while ((re = TAILQ_FIRST(refs))) {
1118 d9dff0e5 2020-12-26 stsp TAILQ_REMOVE(refs, re, entry);
1119 af8a5c4a 2021-05-21 stsp got_ref_close(re->ref);
1125 b249b824 2019-05-09 stsp got_ref_is_symbolic(struct got_reference *ref)
1127 b249b824 2019-05-09 stsp return (ref->flags & GOT_REF_IS_SYMBOLIC);
1130 b249b824 2019-05-09 stsp const struct got_error *
1131 b249b824 2019-05-09 stsp got_ref_change_ref(struct got_reference *ref, struct got_object_id *id)
1133 b249b824 2019-05-09 stsp if (ref->flags & GOT_REF_IS_SYMBOLIC)
1134 b249b824 2019-05-09 stsp return got_error(GOT_ERR_BAD_REF_TYPE);
1136 faf5b56f 2023-01-31 op memcpy(&ref->ref.ref.id, id, sizeof(ref->ref.ref.id));
1137 b249b824 2019-05-09 stsp return NULL;
1140 9e672c74 2019-03-11 stsp const struct got_error *
1141 d7b899ab 2020-03-25 stsp got_ref_change_symref(struct got_reference *ref, const char *refname)
1143 b249b824 2019-05-09 stsp char *new_name;
1145 b249b824 2019-05-09 stsp if ((ref->flags & GOT_REF_IS_SYMBOLIC) == 0)
1146 b249b824 2019-05-09 stsp return got_error(GOT_ERR_BAD_REF_TYPE);
1148 b249b824 2019-05-09 stsp new_name = strdup(refname);
1149 b249b824 2019-05-09 stsp if (new_name == NULL)
1150 638f9024 2019-05-13 stsp return got_error_from_errno("strdup");
1152 d7b899ab 2020-03-25 stsp free(ref->ref.symref.ref);
1153 d7b899ab 2020-03-25 stsp ref->ref.symref.ref = new_name;
1154 b249b824 2019-05-09 stsp return NULL;
1157 b249b824 2019-05-09 stsp const struct got_error *
1158 e8a967e0 2020-03-21 stsp got_ref_change_symref_to_ref(struct got_reference *symref,
1159 e8a967e0 2020-03-21 stsp struct got_object_id *id)
1161 e8a967e0 2020-03-21 stsp if ((symref->flags & GOT_REF_IS_SYMBOLIC) == 0)
1162 e8a967e0 2020-03-21 stsp return got_error(GOT_ERR_BAD_REF_TYPE);
1164 e8a967e0 2020-03-21 stsp symref->ref.ref.name = symref->ref.symref.name;
1165 faf5b56f 2023-01-31 op memcpy(&symref->ref.ref.id, id, sizeof(symref->ref.ref.id));
1166 e8a967e0 2020-03-21 stsp symref->flags &= ~GOT_REF_IS_SYMBOLIC;
1167 e8a967e0 2020-03-21 stsp return NULL;
1170 e8a967e0 2020-03-21 stsp const struct got_error *
1171 9e672c74 2019-03-11 stsp got_ref_write(struct got_reference *ref, struct got_repository *repo)
1173 9e672c74 2019-03-11 stsp const struct got_error *err = NULL, *unlock_err = NULL;
1174 9e672c74 2019-03-11 stsp const char *name = got_ref_get_name(ref);
1175 9e672c74 2019-03-11 stsp char *path_refs = NULL, *path = NULL, *tmppath = NULL;
1176 9e672c74 2019-03-11 stsp struct got_lockfile *lf = NULL;
1177 9e672c74 2019-03-11 stsp FILE *f = NULL;
1179 9e672c74 2019-03-11 stsp struct stat sb;
1181 9e672c74 2019-03-11 stsp path_refs = get_refs_dir_path(repo, name);
1182 9e672c74 2019-03-11 stsp if (path_refs == NULL) {
1183 638f9024 2019-05-13 stsp err = got_error_from_errno2("get_refs_dir_path", name);
1184 9e672c74 2019-03-11 stsp goto done;
1187 9e672c74 2019-03-11 stsp if (asprintf(&path, "%s/%s", path_refs, name) == -1) {
1188 638f9024 2019-05-13 stsp err = got_error_from_errno("asprintf");
1189 9e672c74 2019-03-11 stsp goto done;
1192 b90054ed 2022-11-01 stsp err = got_opentemp_named(&tmppath, &f, path, "");
1193 49c7094f 2019-03-11 stsp if (err) {
1194 d1667f0d 2019-03-11 stsp char *parent;
1195 49c7094f 2019-03-11 stsp if (!(err->code == GOT_ERR_ERRNO && errno == ENOENT))
1196 5e1c9f23 2019-03-11 stsp goto done;
1197 d1667f0d 2019-03-11 stsp err = got_path_dirname(&parent, path);
1199 0cd1c46a 2019-03-11 stsp goto done;
1200 0cd1c46a 2019-03-11 stsp err = got_path_mkdir(parent);
1201 5e1c9f23 2019-03-11 stsp free(parent);
1203 0cd1c46a 2019-03-11 stsp goto done;
1204 b90054ed 2022-11-01 stsp err = got_opentemp_named(&tmppath, &f, path, "");
1206 0cd1c46a 2019-03-11 stsp goto done;
1209 9e672c74 2019-03-11 stsp if (ref->flags & GOT_REF_IS_SYMBOLIC) {
1210 9e672c74 2019-03-11 stsp n = fprintf(f, "ref: %s\n", ref->ref.symref.ref);
1211 9e672c74 2019-03-11 stsp if (n != strlen(ref->ref.symref.ref) + 6) {
1212 9e672c74 2019-03-11 stsp err = got_ferror(f, GOT_ERR_IO);
1213 9e672c74 2019-03-11 stsp goto done;
1219 faf5b56f 2023-01-31 op err = got_object_id_str(&hex, &ref->ref.ref.id);
1222 faf5b56f 2023-01-31 op len = strlen(hex);
1223 9e672c74 2019-03-11 stsp n = fprintf(f, "%s\n", hex);
1225 faf5b56f 2023-01-31 op if (n != len + 1) {
1226 9e672c74 2019-03-11 stsp err = got_ferror(f, GOT_ERR_IO);
1227 9e672c74 2019-03-11 stsp goto done;
1231 2f17228e 2019-05-12 stsp if (ref->lf == NULL) {
1232 5345b4c7 2021-07-06 stsp err = got_lockfile_lock(&lf, path, -1);
1234 2f17228e 2019-05-12 stsp goto done;
1237 9e672c74 2019-03-11 stsp /* XXX: check if old content matches our expectations? */
1239 0cd1c46a 2019-03-11 stsp if (stat(path, &sb) != 0) {
1240 0cd1c46a 2019-03-11 stsp if (errno != ENOENT) {
1241 638f9024 2019-05-13 stsp err = got_error_from_errno2("stat", path);
1242 0cd1c46a 2019-03-11 stsp goto done;
1244 0cd1c46a 2019-03-11 stsp sb.st_mode = GOT_DEFAULT_FILE_MODE;
1247 3818e3c4 2020-11-01 naddy if (fchmod(fileno(f), sb.st_mode) != 0) {
1248 3818e3c4 2020-11-01 naddy err = got_error_from_errno2("fchmod", tmppath);
1249 3818e3c4 2020-11-01 naddy goto done;
1252 9e672c74 2019-03-11 stsp if (rename(tmppath, path) != 0) {
1253 638f9024 2019-05-13 stsp err = got_error_from_errno3("rename", tmppath, path);
1254 9e672c74 2019-03-11 stsp goto done;
1256 9e672c74 2019-03-11 stsp free(tmppath);
1257 9e672c74 2019-03-11 stsp tmppath = NULL;
1259 3f338f0a 2021-07-27 stsp if (stat(path, &sb) == -1) {
1260 3f338f0a 2021-07-27 stsp err = got_error_from_errno2("stat", path);
1261 3f338f0a 2021-07-27 stsp goto done;
1263 3f338f0a 2021-07-27 stsp ref->mtime = sb.st_mtime;
1265 2f17228e 2019-05-12 stsp if (ref->lf == NULL && lf)
1266 5345b4c7 2021-07-06 stsp unlock_err = got_lockfile_unlock(lf, -1);
1268 56b63ca4 2021-01-22 stsp if (fclose(f) == EOF && err == NULL)
1269 638f9024 2019-05-13 stsp err = got_error_from_errno("fclose");
1271 9e672c74 2019-03-11 stsp free(path_refs);
1272 9e672c74 2019-03-11 stsp free(path);
1273 9e672c74 2019-03-11 stsp if (tmppath) {
1274 a06ca3f7 2022-10-15 stsp if (unlink(tmppath) == -1 && err == NULL)
1275 638f9024 2019-05-13 stsp err = got_error_from_errno2("unlink", tmppath);
1276 9e672c74 2019-03-11 stsp free(tmppath);
1278 2d2e1378 2019-03-11 stsp return err ? err : unlock_err;
1281 598a8b91 2019-03-15 stsp static const struct got_error *
1282 598a8b91 2019-03-15 stsp delete_packed_ref(struct got_reference *delref, struct got_repository *repo)
1284 598a8b91 2019-03-15 stsp const struct got_error *err = NULL, *unlock_err = NULL;
1285 598a8b91 2019-03-15 stsp struct got_lockfile *lf = NULL;
1286 598a8b91 2019-03-15 stsp FILE *f = NULL, *tmpf = NULL;
1287 9bdd68dd 2021-01-02 naddy char *line = NULL, *packed_refs_path, *tmppath = NULL;
1288 7a90b680 2021-01-02 naddy size_t linesize = 0;
1289 598a8b91 2019-03-15 stsp struct got_reflist_head refs;
1290 598a8b91 2019-03-15 stsp int found_delref = 0;
1292 598a8b91 2019-03-15 stsp /* The packed-refs file does not cotain symbolic references. */
1293 598a8b91 2019-03-15 stsp if (delref->flags & GOT_REF_IS_SYMBOLIC)
1294 598a8b91 2019-03-15 stsp return got_error(GOT_ERR_BAD_REF_DATA);
1296 d9dff0e5 2020-12-26 stsp TAILQ_INIT(&refs);
1298 598a8b91 2019-03-15 stsp packed_refs_path = got_repo_get_path_packed_refs(repo);
1299 598a8b91 2019-03-15 stsp if (packed_refs_path == NULL)
1300 638f9024 2019-05-13 stsp return got_error_from_errno("got_repo_get_path_packed_refs");
1302 b90054ed 2022-11-01 stsp err = got_opentemp_named(&tmppath, &tmpf, packed_refs_path, "");
1304 598a8b91 2019-03-15 stsp goto done;
1306 2f17228e 2019-05-12 stsp if (delref->lf == NULL) {
1307 5345b4c7 2021-07-06 stsp err = got_lockfile_lock(&lf, packed_refs_path, -1);
1309 2f17228e 2019-05-12 stsp goto done;
1312 00fe21f2 2021-12-31 stsp f = fopen(packed_refs_path, "re");
1313 598a8b91 2019-03-15 stsp if (f == NULL) {
1314 638f9024 2019-05-13 stsp err = got_error_from_errno2("fopen", packed_refs_path);
1315 598a8b91 2019-03-15 stsp goto done;
1318 9bdd68dd 2021-01-02 naddy ssize_t linelen;
1319 598a8b91 2019-03-15 stsp struct got_reference *ref;
1320 598a8b91 2019-03-15 stsp struct got_reflist_entry *new;
1322 9bdd68dd 2021-01-02 naddy linelen = getline(&line, &linesize, f);
1323 9bdd68dd 2021-01-02 naddy if (linelen == -1) {
1324 598a8b91 2019-03-15 stsp if (feof(f))
1326 598a8b91 2019-03-15 stsp err = got_ferror(f, GOT_ERR_BAD_REF_DATA);
1327 598a8b91 2019-03-15 stsp goto done;
1329 9bdd68dd 2021-01-02 naddy if (linelen > 0 && line[linelen - 1] == '\n')
1330 9bdd68dd 2021-01-02 naddy line[linelen - 1] = '\0';
1331 b54930d5 2023-02-28 op err = parse_packed_ref_line(&ref, NULL, line, 0,
1332 b54930d5 2023-02-28 op got_repo_get_object_format(repo));
1334 598a8b91 2019-03-15 stsp goto done;
1335 598a8b91 2019-03-15 stsp if (ref == NULL)
1338 598a8b91 2019-03-15 stsp if (strcmp(ref->ref.ref.name, delref->ref.ref.name) == 0 &&
1339 faf5b56f 2023-01-31 op got_object_id_cmp(&ref->ref.ref.id,
1340 faf5b56f 2023-01-31 op &delref->ref.ref.id) == 0) {
1341 598a8b91 2019-03-15 stsp found_delref = 1;
1342 598a8b91 2019-03-15 stsp got_ref_close(ref);
1346 72acb3d8 2021-08-06 stsp err = got_reflist_insert(&new, &refs, ref,
1347 b8bad2ba 2019-08-23 stsp got_ref_cmp_by_name, NULL);
1348 598a8b91 2019-03-15 stsp if (err || new == NULL /* duplicate */)
1349 598a8b91 2019-03-15 stsp got_ref_close(ref);
1351 598a8b91 2019-03-15 stsp goto done;
1354 598a8b91 2019-03-15 stsp if (found_delref) {
1355 598a8b91 2019-03-15 stsp struct got_reflist_entry *re;
1357 598a8b91 2019-03-15 stsp struct stat sb;
1359 598a8b91 2019-03-15 stsp n = fprintf(tmpf, "%s\n", GOT_PACKED_REFS_HEADER);
1360 598a8b91 2019-03-15 stsp if (n != sizeof(GOT_PACKED_REFS_HEADER)) {
1361 598a8b91 2019-03-15 stsp err = got_ferror(f, GOT_ERR_IO);
1362 598a8b91 2019-03-15 stsp goto done;
1365 d9dff0e5 2020-12-26 stsp TAILQ_FOREACH(re, &refs, entry) {
1369 faf5b56f 2023-01-31 op err = got_object_id_str(&hex, &re->ref->ref.ref.id);
1371 598a8b91 2019-03-15 stsp goto done;
1372 faf5b56f 2023-01-31 op len = strlen(hex);
1373 598a8b91 2019-03-15 stsp n = fprintf(tmpf, "%s ", hex);
1375 faf5b56f 2023-01-31 op if (n != len + 1) {
1376 598a8b91 2019-03-15 stsp err = got_ferror(f, GOT_ERR_IO);
1377 598a8b91 2019-03-15 stsp goto done;
1380 598a8b91 2019-03-15 stsp n = fprintf(tmpf, "%s\n", re->ref->ref.ref.name);
1381 598a8b91 2019-03-15 stsp if (n != strlen(re->ref->ref.ref.name) + 1) {
1382 598a8b91 2019-03-15 stsp err = got_ferror(f, GOT_ERR_IO);
1383 598a8b91 2019-03-15 stsp goto done;
1387 598a8b91 2019-03-15 stsp if (fflush(tmpf) != 0) {
1388 638f9024 2019-05-13 stsp err = got_error_from_errno("fflush");
1389 598a8b91 2019-03-15 stsp goto done;
1392 3818e3c4 2020-11-01 naddy if (fstat(fileno(f), &sb) != 0) {
1393 598a8b91 2019-03-15 stsp if (errno != ENOENT) {
1394 3818e3c4 2020-11-01 naddy err = got_error_from_errno2("fstat",
1395 230a42bd 2019-05-11 jcs packed_refs_path);
1396 598a8b91 2019-03-15 stsp goto done;
1398 598a8b91 2019-03-15 stsp sb.st_mode = GOT_DEFAULT_FILE_MODE;
1401 3818e3c4 2020-11-01 naddy if (fchmod(fileno(tmpf), sb.st_mode) != 0) {
1402 3818e3c4 2020-11-01 naddy err = got_error_from_errno2("fchmod", tmppath);
1403 598a8b91 2019-03-15 stsp goto done;
1406 3818e3c4 2020-11-01 naddy if (rename(tmppath, packed_refs_path) != 0) {
1407 3818e3c4 2020-11-01 naddy err = got_error_from_errno3("rename", tmppath,
1408 230a42bd 2019-05-11 jcs packed_refs_path);
1409 598a8b91 2019-03-15 stsp goto done;
1411 15c388a9 2022-10-15 stsp free(tmppath);
1412 15c388a9 2022-10-15 stsp tmppath = NULL;
1415 2f17228e 2019-05-12 stsp if (delref->lf == NULL && lf)
1416 5345b4c7 2021-07-06 stsp unlock_err = got_lockfile_unlock(lf, -1);
1418 56b63ca4 2021-01-22 stsp if (fclose(f) == EOF && err == NULL)
1419 638f9024 2019-05-13 stsp err = got_error_from_errno("fclose");
1421 15c388a9 2022-10-15 stsp if (tmppath && unlink(tmppath) == -1 && err == NULL)
1422 15c388a9 2022-10-15 stsp err = got_error_from_errno2("unlink", tmppath);
1423 15c388a9 2022-10-15 stsp if (tmpf && fclose(tmpf) == EOF && err == NULL)
1424 15c388a9 2022-10-15 stsp err = got_error_from_errno("fclose");
1425 598a8b91 2019-03-15 stsp free(tmppath);
1426 598a8b91 2019-03-15 stsp free(packed_refs_path);
1427 9bdd68dd 2021-01-02 naddy free(line);
1428 598a8b91 2019-03-15 stsp got_ref_list_free(&refs);
1429 598a8b91 2019-03-15 stsp return err ? err : unlock_err;
1432 2a104ff6 2020-09-21 stsp static const struct got_error *
1433 2a104ff6 2020-09-21 stsp delete_loose_ref(struct got_reference *ref, struct got_repository *repo)
1435 2d2e1378 2019-03-11 stsp const struct got_error *err = NULL, *unlock_err = NULL;
1436 2d2e1378 2019-03-11 stsp const char *name = got_ref_get_name(ref);
1437 2d2e1378 2019-03-11 stsp char *path_refs = NULL, *path = NULL;
1438 2d2e1378 2019-03-11 stsp struct got_lockfile *lf = NULL;
1440 2d2e1378 2019-03-11 stsp path_refs = get_refs_dir_path(repo, name);
1441 2d2e1378 2019-03-11 stsp if (path_refs == NULL) {
1442 638f9024 2019-05-13 stsp err = got_error_from_errno2("get_refs_dir_path", name);
1443 2d2e1378 2019-03-11 stsp goto done;
1446 2d2e1378 2019-03-11 stsp if (asprintf(&path, "%s/%s", path_refs, name) == -1) {
1447 638f9024 2019-05-13 stsp err = got_error_from_errno("asprintf");
1448 2d2e1378 2019-03-11 stsp goto done;
1451 2f17228e 2019-05-12 stsp if (ref->lf == NULL) {
1452 5345b4c7 2021-07-06 stsp err = got_lockfile_lock(&lf, path, -1);
1454 2f17228e 2019-05-12 stsp goto done;
1457 2d2e1378 2019-03-11 stsp /* XXX: check if old content matches our expectations? */
1459 a06ca3f7 2022-10-15 stsp if (unlink(path) == -1)
1460 638f9024 2019-05-13 stsp err = got_error_from_errno2("unlink", path);
1462 2f17228e 2019-05-12 stsp if (ref->lf == NULL && lf)
1463 5345b4c7 2021-07-06 stsp unlock_err = got_lockfile_unlock(lf, -1);
1465 2d2e1378 2019-03-11 stsp free(path_refs);
1466 2d2e1378 2019-03-11 stsp free(path);
1467 9e672c74 2019-03-11 stsp return err ? err : unlock_err;
1470 2a104ff6 2020-09-21 stsp const struct got_error *
1471 2a104ff6 2020-09-21 stsp got_ref_delete(struct got_reference *ref, struct got_repository *repo)
1473 2a104ff6 2020-09-21 stsp const struct got_error *err = NULL;
1474 2a104ff6 2020-09-21 stsp struct got_reference *ref2;
1476 2a104ff6 2020-09-21 stsp if (ref->flags & GOT_REF_IS_PACKED) {
1477 2a104ff6 2020-09-21 stsp err = delete_packed_ref(ref, repo);
1479 2a104ff6 2020-09-21 stsp return err;
1481 a1c4175c 2020-09-22 stsp err = got_ref_open(&ref2, repo, got_ref_get_name(ref), 0);
1482 2a104ff6 2020-09-21 stsp if (err) {
1483 2a104ff6 2020-09-21 stsp if (err->code == GOT_ERR_NOT_REF)
1484 2a104ff6 2020-09-21 stsp return NULL;
1485 2a104ff6 2020-09-21 stsp return err;
1488 2a104ff6 2020-09-21 stsp err = delete_loose_ref(ref2, repo);
1489 2a104ff6 2020-09-21 stsp got_ref_close(ref2);
1490 2a104ff6 2020-09-21 stsp return err;
1492 2a104ff6 2020-09-21 stsp err = delete_loose_ref(ref, repo);
1494 2a104ff6 2020-09-21 stsp return err;
1496 a1c4175c 2020-09-22 stsp err = got_ref_open(&ref2, repo, got_ref_get_name(ref), 0);
1497 2a104ff6 2020-09-21 stsp if (err) {
1498 2a104ff6 2020-09-21 stsp if (err->code == GOT_ERR_NOT_REF)
1499 2a104ff6 2020-09-21 stsp return NULL;
1500 2a104ff6 2020-09-21 stsp return err;
1503 2a104ff6 2020-09-21 stsp err = delete_packed_ref(ref2, repo);
1504 2a104ff6 2020-09-21 stsp got_ref_close(ref2);
1505 2a104ff6 2020-09-21 stsp return err;
1509 2f17228e 2019-05-12 stsp const struct got_error *
1510 2f17228e 2019-05-12 stsp got_ref_unlock(struct got_reference *ref)
1512 2f17228e 2019-05-12 stsp const struct got_error *err;
1513 5345b4c7 2021-07-06 stsp err = got_lockfile_unlock(ref->lf, -1);
1514 2f17228e 2019-05-12 stsp ref->lf = NULL;
1515 2f17228e 2019-05-12 stsp return err;
1518 7b5b670e 2020-12-25 stsp struct got_reflist_object_id_map {
1519 7b5b670e 2020-12-25 stsp struct got_object_idset *idset;
1522 7b5b670e 2020-12-25 stsp struct got_reflist_object_id_map_entry {
1523 7b5b670e 2020-12-25 stsp struct got_reflist_head refs;
1526 24202e46 2020-12-26 stsp static const struct got_error *
1527 24202e46 2020-12-26 stsp add_object_id_map_entry(struct got_object_idset *idset,
1528 24202e46 2020-12-26 stsp struct got_object_id *id, struct got_reflist_entry *re)
1530 24202e46 2020-12-26 stsp const struct got_error *err = NULL;
1531 24202e46 2020-12-26 stsp struct got_reflist_object_id_map_entry *ent;
1532 24202e46 2020-12-26 stsp struct got_reflist_entry *new;
1534 24202e46 2020-12-26 stsp ent = got_object_idset_get(idset, id);
1535 24202e46 2020-12-26 stsp if (ent == NULL) {
1536 24202e46 2020-12-26 stsp ent = malloc(sizeof(*ent));
1537 24202e46 2020-12-26 stsp if (ent == NULL)
1538 24202e46 2020-12-26 stsp return got_error_from_errno("malloc");
1540 24202e46 2020-12-26 stsp TAILQ_INIT(&ent->refs);
1541 24202e46 2020-12-26 stsp err = got_object_idset_add(idset, id, ent);
1544 24202e46 2020-12-26 stsp return err;
1548 24202e46 2020-12-26 stsp err = got_reflist_entry_dup(&new, re);
1550 24202e46 2020-12-26 stsp return err;
1552 24202e46 2020-12-26 stsp TAILQ_INSERT_TAIL(&ent->refs, new, entry);
1553 24202e46 2020-12-26 stsp return NULL;
1556 7b5b670e 2020-12-25 stsp const struct got_error *
1557 7b5b670e 2020-12-25 stsp got_reflist_object_id_map_create(struct got_reflist_object_id_map **map,
1558 7b5b670e 2020-12-25 stsp struct got_reflist_head *refs, struct got_repository *repo)
1560 7b5b670e 2020-12-25 stsp const struct got_error *err = NULL;
1561 7b5b670e 2020-12-25 stsp struct got_object_idset *idset;
1562 7b5b670e 2020-12-25 stsp struct got_object_id *id = NULL;
1563 7b5b670e 2020-12-25 stsp struct got_reflist_entry *re;
1565 7b5b670e 2020-12-25 stsp idset = got_object_idset_alloc();
1566 7b5b670e 2020-12-25 stsp if (idset == NULL)
1567 7b5b670e 2020-12-25 stsp return got_error_from_errno("got_object_idset_alloc");
1569 7b5b670e 2020-12-25 stsp *map = malloc(sizeof(**map));
1570 7b5b670e 2020-12-25 stsp if (*map == NULL) {
1571 7b5b670e 2020-12-25 stsp got_object_idset_free(idset);
1572 7b5b670e 2020-12-25 stsp return got_error_from_errno("malloc");
1574 7b5b670e 2020-12-25 stsp (*map)->idset = idset;
1576 d9dff0e5 2020-12-26 stsp TAILQ_FOREACH(re, refs, entry) {
1577 24202e46 2020-12-26 stsp struct got_tag_object *tag = NULL;
1579 7b5b670e 2020-12-25 stsp err = got_ref_resolve(&id, repo, re->ref);
1581 7b5b670e 2020-12-25 stsp goto done;
1583 24202e46 2020-12-26 stsp err = add_object_id_map_entry(idset, id, re);
1585 24202e46 2020-12-26 stsp goto done;
1587 24202e46 2020-12-26 stsp if (strstr(got_ref_get_name(re->ref), "/tags/") == NULL) {
1589 24202e46 2020-12-26 stsp id = NULL;
1593 24202e46 2020-12-26 stsp err = got_object_open_as_tag(&tag, repo, id);
1594 24202e46 2020-12-26 stsp if (err) {
1595 24202e46 2020-12-26 stsp if (err->code != GOT_ERR_OBJ_TYPE)
1596 7b5b670e 2020-12-25 stsp goto done;
1597 24202e46 2020-12-26 stsp /* Ref points at something other than a tag. */
1598 24202e46 2020-12-26 stsp err = NULL;
1599 24202e46 2020-12-26 stsp tag = NULL;
1601 24202e46 2020-12-26 stsp id = NULL;
1605 24202e46 2020-12-26 stsp err = add_object_id_map_entry(idset,
1606 24202e46 2020-12-26 stsp got_object_tag_get_object_id(tag), re);
1607 f0ff8d4c 2020-12-26 stsp got_object_tag_close(tag);
1609 7b5b670e 2020-12-25 stsp goto done;
1612 7b5b670e 2020-12-25 stsp id = NULL;
1616 7b5b670e 2020-12-25 stsp if (err) {
1617 f193b038 2020-12-26 stsp got_reflist_object_id_map_free(*map);
1618 7b5b670e 2020-12-25 stsp *map = NULL;
1620 a53af95f 2020-12-26 stsp return err;
1623 7b5b670e 2020-12-25 stsp struct got_reflist_head *
1624 7b5b670e 2020-12-25 stsp got_reflist_object_id_map_lookup(struct got_reflist_object_id_map *map,
1625 7b5b670e 2020-12-25 stsp struct got_object_id *id)
1627 7b5b670e 2020-12-25 stsp struct got_reflist_object_id_map_entry *ent;
1628 7b5b670e 2020-12-25 stsp ent = got_object_idset_get(map->idset, id);
1630 7b5b670e 2020-12-25 stsp return &ent->refs;
1631 7b5b670e 2020-12-25 stsp return NULL;
1634 7b5b670e 2020-12-25 stsp static const struct got_error *
1635 7b5b670e 2020-12-25 stsp free_id_map_entry(struct got_object_id *id, void *data, void *arg)
1637 7b5b670e 2020-12-25 stsp struct got_reflist_object_id_map_entry *ent = data;
1639 7b5b670e 2020-12-25 stsp got_ref_list_free(&ent->refs);
1640 7b5b670e 2020-12-25 stsp free(ent);
1641 7b5b670e 2020-12-25 stsp return NULL;
1645 f193b038 2020-12-26 stsp got_reflist_object_id_map_free(struct got_reflist_object_id_map *map)
1647 7b5b670e 2020-12-25 stsp got_object_idset_for_each(map->idset, free_id_map_entry, NULL);
1648 7b5b670e 2020-12-25 stsp got_object_idset_free(map->idset);
1649 7b5b670e 2020-12-25 stsp free(map);
