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 5261c201 2018-04-01 stsp #include <stdio.h>
26 5261c201 2018-04-01 stsp #include <stdlib.h>
27 5261c201 2018-04-01 stsp #include <string.h>
28 81a12da5 2020-09-09 naddy #include <unistd.h>
29 5261c201 2018-04-01 stsp #include <util.h>
30 5261c201 2018-04-01 stsp #include <zlib.h>
31 788c352e 2018-06-16 stsp #include <time.h>
32 0cd1c46a 2019-03-11 stsp #include <libgen.h>
34 5261c201 2018-04-01 stsp #include "got_error.h"
35 5261c201 2018-04-01 stsp #include "got_object.h"
36 5261c201 2018-04-01 stsp #include "got_repository.h"
37 5261c201 2018-04-01 stsp #include "got_reference.h"
38 9e672c74 2019-03-11 stsp #include "got_opentemp.h"
39 324d37e7 2019-05-11 stsp #include "got_path.h"
41 5261c201 2018-04-01 stsp #include "got_lib_sha1.h"
42 5261c201 2018-04-01 stsp #include "got_lib_delta.h"
43 63581804 2018-07-09 stsp #include "got_lib_inflate.h"
44 5261c201 2018-04-01 stsp #include "got_lib_object.h"
45 7b5b670e 2020-12-25 stsp #include "got_lib_object_idset.h"
46 f77a24b0 2019-03-11 stsp #include "got_lib_lockfile.h"
48 fb79db15 2019-02-01 stsp #ifndef nitems
49 fb79db15 2019-02-01 stsp #define nitems(_a) (sizeof(_a) / sizeof((_a)[0]))
52 d1f2edc9 2018-06-13 stsp #define GOT_REF_HEADS "heads"
53 d1f2edc9 2018-06-13 stsp #define GOT_REF_TAGS "tags"
54 d1f2edc9 2018-06-13 stsp #define GOT_REF_REMOTES "remotes"
57 598a8b91 2019-03-15 stsp * We do not resolve tags yet, and don't yet care about sorting refs either,
58 598a8b91 2019-03-15 stsp * so packed-refs files we write contain a minimal header which disables all
59 598a8b91 2019-03-15 stsp * packed-refs "traits" supported by Git.
61 598a8b91 2019-03-15 stsp #define GOT_PACKED_REFS_HEADER "# pack-refs with:"
63 5261c201 2018-04-01 stsp /* A symbolic reference. */
64 5261c201 2018-04-01 stsp struct got_symref {
69 29e86f7a 2019-08-12 stsp #define GOT_REF_RECURSE_MAX 20
71 5261c201 2018-04-01 stsp /* A non-symbolic reference (there is no better designation). */
72 5261c201 2018-04-01 stsp struct got_ref {
74 faf5b56f 2023-01-31 op struct got_object_id id;
77 5261c201 2018-04-01 stsp /* A reference which points to an arbitrary object. */
78 5261c201 2018-04-01 stsp struct got_reference {
79 5261c201 2018-04-01 stsp unsigned int flags;
80 5261c201 2018-04-01 stsp #define GOT_REF_IS_SYMBOLIC 0x01
81 f9267c9a 2019-03-15 stsp #define GOT_REF_IS_PACKED 0x02
84 5261c201 2018-04-01 stsp struct got_ref ref;
85 5261c201 2018-04-01 stsp struct got_symref symref;
88 2f17228e 2019-05-12 stsp struct got_lockfile *lf;
89 3f338f0a 2021-07-27 stsp time_t mtime;
91 2c9e323b 2021-10-10 stsp /* Cached timestamp for got_ref_cmp_by_commit_timestamp_descending() */
92 2c9e323b 2021-10-10 stsp time_t committer_time;
95 5261c201 2018-04-01 stsp static const struct got_error *
96 f9267c9a 2019-03-15 stsp alloc_ref(struct got_reference **ref, const char *name,
97 3f338f0a 2021-07-27 stsp struct got_object_id *id, int flags, time_t mtime)
99 f9267c9a 2019-03-15 stsp const struct got_error *err = NULL;
101 f9267c9a 2019-03-15 stsp *ref = calloc(1, sizeof(**ref));
102 f9267c9a 2019-03-15 stsp if (*ref == NULL)
103 638f9024 2019-05-13 stsp return got_error_from_errno("calloc");
105 faf5b56f 2023-01-31 op memcpy(&(*ref)->ref.ref.id, id, sizeof((*ref)->ref.ref.id));
106 c980e470 2019-03-15 stsp (*ref)->flags = flags;
107 f9267c9a 2019-03-15 stsp (*ref)->ref.ref.name = strdup(name);
108 3f338f0a 2021-07-27 stsp (*ref)->mtime = mtime;
109 f9267c9a 2019-03-15 stsp if ((*ref)->ref.ref.name == NULL) {
110 638f9024 2019-05-13 stsp err = got_error_from_errno("strdup");
111 c980e470 2019-03-15 stsp got_ref_close(*ref);
112 f9267c9a 2019-03-15 stsp *ref = NULL;
114 f9267c9a 2019-03-15 stsp return err;
117 f9267c9a 2019-03-15 stsp static const struct got_error *
118 f9267c9a 2019-03-15 stsp alloc_symref(struct got_reference **ref, const char *name,
119 f9267c9a 2019-03-15 stsp const char *target_ref, int flags)
121 f9267c9a 2019-03-15 stsp const struct got_error *err = NULL;
123 5261c201 2018-04-01 stsp *ref = calloc(1, sizeof(**ref));
124 5261c201 2018-04-01 stsp if (*ref == NULL)
125 638f9024 2019-05-13 stsp return got_error_from_errno("calloc");
127 f9267c9a 2019-03-15 stsp (*ref)->flags = GOT_REF_IS_SYMBOLIC | flags;
128 f9267c9a 2019-03-15 stsp (*ref)->ref.symref.name = strdup(name);
129 f9267c9a 2019-03-15 stsp if ((*ref)->ref.symref.name == NULL) {
130 638f9024 2019-05-13 stsp err = got_error_from_errno("strdup");
131 f9267c9a 2019-03-15 stsp got_ref_close(*ref);
132 f9267c9a 2019-03-15 stsp *ref = NULL;
133 cdb8f1fa 2019-08-28 hiltjo return err;
135 f9267c9a 2019-03-15 stsp (*ref)->ref.symref.ref = strdup(target_ref);
136 f9267c9a 2019-03-15 stsp if ((*ref)->ref.symref.ref == NULL) {
137 638f9024 2019-05-13 stsp err = got_error_from_errno("strdup");
138 f9267c9a 2019-03-15 stsp got_ref_close(*ref);
139 f9267c9a 2019-03-15 stsp *ref = NULL;
141 f9267c9a 2019-03-15 stsp return err;
144 5261c201 2018-04-01 stsp static const struct got_error *
145 f9267c9a 2019-03-15 stsp parse_symref(struct got_reference **ref, const char *name, const char *line)
147 f9267c9a 2019-03-15 stsp if (line[0] == '\0')
148 f9267c9a 2019-03-15 stsp return got_error(GOT_ERR_BAD_REF_DATA);
150 f9267c9a 2019-03-15 stsp return alloc_symref(ref, name, line, 0);
153 f9267c9a 2019-03-15 stsp static const struct got_error *
154 3f338f0a 2021-07-27 stsp parse_ref_line(struct got_reference **ref, const char *name, const char *line,
155 3f338f0a 2021-07-27 stsp time_t mtime)
157 5892cdd6 2019-03-10 stsp struct got_object_id id;
159 5261c201 2018-04-01 stsp if (strncmp(line, "ref: ", 5) == 0) {
161 5261c201 2018-04-01 stsp return parse_symref(ref, name, line);
164 5892cdd6 2019-03-10 stsp if (!got_parse_sha1_digest(id.sha1, line))
165 30c0868d 2019-02-03 stsp return got_error(GOT_ERR_BAD_REF_DATA);
167 3f338f0a 2021-07-27 stsp return alloc_ref(ref, name, &id, 0, mtime);
170 5261c201 2018-04-01 stsp static const struct got_error *
171 5261c201 2018-04-01 stsp parse_ref_file(struct got_reference **ref, const char *name,
172 b2070a3f 2020-03-22 stsp const char *absname, const char *abspath, int lock)
174 5261c201 2018-04-01 stsp const struct got_error *err = NULL;
176 c30018ad 2019-10-21 stsp char *line = NULL;
177 c30018ad 2019-10-21 stsp size_t linesize = 0;
178 c30018ad 2019-10-21 stsp ssize_t linelen;
179 2f17228e 2019-05-12 stsp struct got_lockfile *lf = NULL;
180 3f338f0a 2021-07-27 stsp struct stat sb;
182 2f17228e 2019-05-12 stsp if (lock) {
183 5345b4c7 2021-07-06 stsp err = got_lockfile_lock(&lf, abspath, -1);
185 9f142382 2020-03-21 stsp if (err->code == GOT_ERR_ERRNO && errno == ENOENT)
186 b2070a3f 2020-03-22 stsp err = got_error_not_ref(name);
187 9f142382 2020-03-21 stsp return err;
191 00fe21f2 2021-12-31 stsp f = fopen(abspath, "rbe");
192 f5c58ad1 2019-05-12 stsp if (f == NULL) {
193 b2070a3f 2020-03-22 stsp if (errno != ENOTDIR && errno != ENOENT)
194 b2070a3f 2020-03-22 stsp err = got_error_from_errno2("fopen", abspath);
196 b2070a3f 2020-03-22 stsp err = got_error_not_ref(name);
198 5345b4c7 2021-07-06 stsp got_lockfile_unlock(lf, -1);
199 b2070a3f 2020-03-22 stsp return err;
201 3f338f0a 2021-07-27 stsp if (fstat(fileno(f), &sb) == -1) {
202 3f338f0a 2021-07-27 stsp err = got_error_from_errno2("fstat", abspath);
206 c30018ad 2019-10-21 stsp linelen = getline(&line, &linesize, f);
207 c30018ad 2019-10-21 stsp if (linelen == -1) {
208 c30018ad 2019-10-21 stsp if (feof(f))
209 c30018ad 2019-10-21 stsp err = NULL; /* ignore empty files (could be locks) */
211 b2070a3f 2020-03-22 stsp if (errno == EISDIR)
212 b2070a3f 2020-03-22 stsp err = got_error(GOT_ERR_NOT_REF);
213 b2070a3f 2020-03-22 stsp else if (ferror(f))
214 b2070a3f 2020-03-22 stsp err = got_ferror(f, GOT_ERR_IO);
216 b2070a3f 2020-03-22 stsp err = got_error_from_errno2("getline", abspath);
219 5345b4c7 2021-07-06 stsp got_lockfile_unlock(lf, -1);
222 c30018ad 2019-10-21 stsp while (linelen > 0 && line[linelen - 1] == '\n') {
223 c30018ad 2019-10-21 stsp line[linelen - 1] = '\0';
227 3f338f0a 2021-07-27 stsp err = parse_ref_line(ref, absname, line, sb.st_mtime);
228 f5c58ad1 2019-05-12 stsp if (lock) {
230 5345b4c7 2021-07-06 stsp got_lockfile_unlock(lf, -1);
233 f5c58ad1 2019-05-12 stsp (*ref)->lf = lf;
235 5345b4c7 2021-07-06 stsp got_lockfile_unlock(lf, -1);
239 5261c201 2018-04-01 stsp free(line);
240 56b63ca4 2021-01-22 stsp if (fclose(f) == EOF && err == NULL) {
241 638f9024 2019-05-13 stsp err = got_error_from_errno("fclose");
242 2f17228e 2019-05-12 stsp if (*ref) {
244 f5c58ad1 2019-05-12 stsp got_ref_unlock(*ref);
245 2f17228e 2019-05-12 stsp got_ref_close(*ref);
246 2f17228e 2019-05-12 stsp *ref = NULL;
249 5261c201 2018-04-01 stsp return err;
253 c5f754cc 2019-02-01 stsp is_well_known_ref(const char *refname)
255 c5f754cc 2019-02-01 stsp return (strcmp(refname, GOT_REF_HEAD) == 0 ||
256 5261c201 2018-04-01 stsp strcmp(refname, GOT_REF_ORIG_HEAD) == 0 ||
257 5261c201 2018-04-01 stsp strcmp(refname, GOT_REF_MERGE_HEAD) == 0 ||
258 c5f754cc 2019-02-01 stsp strcmp(refname, GOT_REF_FETCH_HEAD) == 0);
261 c5f754cc 2019-02-01 stsp static char *
262 c5f754cc 2019-02-01 stsp get_refs_dir_path(struct got_repository *repo, const char *refname)
264 c5f754cc 2019-02-01 stsp if (is_well_known_ref(refname) || strncmp(refname, "refs/", 5) == 0)
265 6e9da951 2019-01-06 stsp return strdup(got_repo_get_path_git_dir(repo));
267 5261c201 2018-04-01 stsp return got_repo_get_path_refs(repo);
270 5892cdd6 2019-03-10 stsp const struct got_error *
271 5892cdd6 2019-03-10 stsp got_ref_alloc(struct got_reference **ref, const char *name,
272 5892cdd6 2019-03-10 stsp struct got_object_id *id)
274 63e5aa5c 2021-08-23 stsp if (!got_ref_name_is_valid(name))
275 24b5452a 2019-10-09 stsp return got_error_path(name, GOT_ERR_BAD_REF_NAME);
277 3f338f0a 2021-07-27 stsp return alloc_ref(ref, name, id, 0, 0);
280 aaf88317 2019-07-10 stsp const struct got_error *
281 aaf88317 2019-07-10 stsp got_ref_alloc_symref(struct got_reference **ref, const char *name,
282 aaf88317 2019-07-10 stsp struct got_reference *target_ref)
284 63e5aa5c 2021-08-23 stsp if (!got_ref_name_is_valid(name))
285 24b5452a 2019-10-09 stsp return got_error_path(name, GOT_ERR_BAD_REF_NAME);
287 aaf88317 2019-07-10 stsp return alloc_symref(ref, name, got_ref_get_name(target_ref), 0);
290 d1f2edc9 2018-06-13 stsp static const struct got_error *
291 fb79db15 2019-02-01 stsp parse_packed_ref_line(struct got_reference **ref, const char *abs_refname,
292 3f338f0a 2021-07-27 stsp const char *line, time_t mtime)
294 5892cdd6 2019-03-10 stsp struct got_object_id id;
295 5892cdd6 2019-03-10 stsp const char *name;
297 fb79db15 2019-02-01 stsp *ref = NULL;
299 532920c8 2019-02-01 stsp if (line[0] == '#' || line[0] == '^')
300 fb79db15 2019-02-01 stsp return NULL;
302 5892cdd6 2019-03-10 stsp if (!got_parse_sha1_digest(id.sha1, line))
303 30c0868d 2019-02-03 stsp return got_error(GOT_ERR_BAD_REF_DATA);
305 199a4027 2019-02-02 stsp if (abs_refname) {
306 199a4027 2019-02-02 stsp if (strcmp(line + SHA1_DIGEST_STRING_LENGTH, abs_refname) != 0)
307 199a4027 2019-02-02 stsp return NULL;
308 5892cdd6 2019-03-10 stsp name = abs_refname;
310 5892cdd6 2019-03-10 stsp name = line + SHA1_DIGEST_STRING_LENGTH;
312 3f338f0a 2021-07-27 stsp return alloc_ref(ref, name, &id, GOT_REF_IS_PACKED, mtime);
315 fb79db15 2019-02-01 stsp static const struct got_error *
316 0dec1cc0 2019-02-01 stsp open_packed_ref(struct got_reference **ref, FILE *f, const char **subdirs,
317 3f338f0a 2021-07-27 stsp int nsubdirs, const char *refname, time_t mtime)
319 fb79db15 2019-02-01 stsp const struct got_error *err = NULL;
320 fb79db15 2019-02-01 stsp char *abs_refname;
321 9bdd68dd 2021-01-02 naddy char *line = NULL;
322 9bdd68dd 2021-01-02 naddy size_t linesize = 0;
323 9bdd68dd 2021-01-02 naddy ssize_t linelen;
324 0dec1cc0 2019-02-01 stsp int i, ref_is_absolute = (strncmp(refname, "refs/", 5) == 0);
326 1e37702e 2019-02-04 stsp *ref = NULL;
328 0dec1cc0 2019-02-01 stsp if (ref_is_absolute)
329 0dec1cc0 2019-02-01 stsp abs_refname = (char *)refname;
331 9bdd68dd 2021-01-02 naddy linelen = getline(&line, &linesize, f);
332 9bdd68dd 2021-01-02 naddy if (linelen == -1) {
333 7ab0422a 2019-03-15 stsp if (feof(f))
335 7ab0422a 2019-03-15 stsp err = got_ferror(f, GOT_ERR_BAD_REF_DATA);
338 9bdd68dd 2021-01-02 naddy if (linelen > 0 && line[linelen - 1] == '\n')
339 9bdd68dd 2021-01-02 naddy line[linelen - 1] = '\0';
340 0dec1cc0 2019-02-01 stsp for (i = 0; i < nsubdirs; i++) {
341 0dec1cc0 2019-02-01 stsp if (!ref_is_absolute &&
342 0dec1cc0 2019-02-01 stsp asprintf(&abs_refname, "refs/%s/%s", subdirs[i],
343 0dec1cc0 2019-02-01 stsp refname) == -1)
344 638f9024 2019-05-13 stsp return got_error_from_errno("asprintf");
345 3f338f0a 2021-07-27 stsp err = parse_packed_ref_line(ref, abs_refname, line,
347 0dec1cc0 2019-02-01 stsp if (!ref_is_absolute)
348 0dec1cc0 2019-02-01 stsp free(abs_refname);
349 532920c8 2019-02-01 stsp if (err || *ref != NULL)
354 fb79db15 2019-02-01 stsp } while (*ref == NULL);
355 9bdd68dd 2021-01-02 naddy free(line);
357 fb79db15 2019-02-01 stsp return err;
360 fb79db15 2019-02-01 stsp static const struct got_error *
361 d1f2edc9 2018-06-13 stsp open_ref(struct got_reference **ref, const char *path_refs, const char *subdir,
362 2f17228e 2019-05-12 stsp const char *name, int lock)
364 d1f2edc9 2018-06-13 stsp const struct got_error *err = NULL;
365 a04f49d2 2019-02-04 stsp char *path = NULL;
366 a04f49d2 2019-02-04 stsp char *absname = NULL;
367 a04f49d2 2019-02-04 stsp int ref_is_absolute = (strncmp(name, "refs/", 5) == 0);
368 75236079 2020-03-25 stsp int ref_is_well_known = (subdir[0] == '\0' && is_well_known_ref(name));
370 1e37702e 2019-02-04 stsp *ref = NULL;
372 63e5aa5c 2021-08-23 stsp if (!got_ref_name_is_valid(name))
373 57c18198 2021-05-24 stsp return got_error_path(name, GOT_ERR_BAD_REF_NAME);
375 a04f49d2 2019-02-04 stsp if (ref_is_absolute || ref_is_well_known) {
376 a04f49d2 2019-02-04 stsp if (asprintf(&path, "%s/%s", path_refs, name) == -1)
377 638f9024 2019-05-13 stsp return got_error_from_errno("asprintf");
378 a04f49d2 2019-02-04 stsp absname = (char *)name;
380 58908ed0 2019-03-11 stsp if (asprintf(&path, "%s/%s%s%s", path_refs, subdir,
381 58908ed0 2019-03-11 stsp subdir[0] ? "/" : "", name) == -1)
382 638f9024 2019-05-13 stsp return got_error_from_errno("asprintf");
384 58908ed0 2019-03-11 stsp if (asprintf(&absname, "refs/%s%s%s",
385 58908ed0 2019-03-11 stsp subdir, subdir[0] ? "/" : "", name) == -1) {
386 638f9024 2019-05-13 stsp err = got_error_from_errno("asprintf");
391 b2070a3f 2020-03-22 stsp err = parse_ref_file(ref, name, absname, path, lock);
393 a04f49d2 2019-02-04 stsp if (!ref_is_absolute && !ref_is_well_known)
394 a04f49d2 2019-02-04 stsp free(absname);
395 a04f49d2 2019-02-04 stsp free(path);
396 d1f2edc9 2018-06-13 stsp return err;
399 5261c201 2018-04-01 stsp const struct got_error *
400 5261c201 2018-04-01 stsp got_ref_open(struct got_reference **ref, struct got_repository *repo,
401 abc59930 2021-09-05 naddy const char *refname, int lock)
403 5261c201 2018-04-01 stsp const struct got_error *err = NULL;
404 c3821bef 2022-07-21 florian char *packed_refs_path = NULL, *path_refs = NULL;
405 fb79db15 2019-02-01 stsp const char *subdirs[] = {
406 fb79db15 2019-02-01 stsp GOT_REF_HEADS, GOT_REF_TAGS, GOT_REF_REMOTES
409 16aeacf7 2020-11-26 stsp int well_known = is_well_known_ref(refname);
410 a875589a 2019-05-12 stsp struct got_lockfile *lf = NULL;
412 1e37702e 2019-02-04 stsp *ref = NULL;
414 e135804e 2019-02-10 stsp path_refs = get_refs_dir_path(repo, refname);
415 e135804e 2019-02-10 stsp if (path_refs == NULL) {
416 638f9024 2019-05-13 stsp err = got_error_from_errno2("get_refs_dir_path", refname);
420 0885ce8f 2019-05-12 stsp if (well_known) {
421 0885ce8f 2019-05-12 stsp err = open_ref(ref, path_refs, "", refname, lock);
425 e135804e 2019-02-10 stsp /* Search on-disk refs before packed refs! */
426 e135804e 2019-02-10 stsp for (i = 0; i < nitems(subdirs); i++) {
427 2f17228e 2019-05-12 stsp err = open_ref(ref, path_refs, subdirs[i], refname,
429 b2070a3f 2020-03-22 stsp if ((err && err->code != GOT_ERR_NOT_REF) || *ref)
433 c5f754cc 2019-02-01 stsp packed_refs_path = got_repo_get_path_packed_refs(repo);
434 e135804e 2019-02-10 stsp if (packed_refs_path == NULL) {
435 638f9024 2019-05-13 stsp err = got_error_from_errno(
436 230a42bd 2019-05-11 jcs "got_repo_get_path_packed_refs");
440 2f17228e 2019-05-12 stsp if (lock) {
441 5345b4c7 2021-07-06 stsp err = got_lockfile_lock(&lf, packed_refs_path, -1);
445 00fe21f2 2021-12-31 stsp f = fopen(packed_refs_path, "rbe");
446 c5f754cc 2019-02-01 stsp if (f != NULL) {
447 3f338f0a 2021-07-27 stsp struct stat sb;
448 3f338f0a 2021-07-27 stsp if (fstat(fileno(f), &sb) == -1) {
449 3f338f0a 2021-07-27 stsp err = got_error_from_errno2("fstat",
450 3f338f0a 2021-07-27 stsp packed_refs_path);
453 0dec1cc0 2019-02-01 stsp err = open_packed_ref(ref, f, subdirs, nitems(subdirs),
454 3f338f0a 2021-07-27 stsp refname, sb.st_mtime);
455 a875589a 2019-05-12 stsp if (!err) {
456 56b63ca4 2021-01-22 stsp if (fclose(f) == EOF) {
457 638f9024 2019-05-13 stsp err = got_error_from_errno("fclose");
458 a875589a 2019-05-12 stsp got_ref_close(*ref);
459 a875589a 2019-05-12 stsp *ref = NULL;
460 6e472abb 2019-05-13 stsp } else if (*ref)
461 a875589a 2019-05-12 stsp (*ref)->lf = lf;
466 5b575c25 2019-05-12 stsp if (!err && *ref == NULL)
467 1e37702e 2019-02-04 stsp err = got_error_not_ref(refname);
468 a875589a 2019-05-12 stsp if (err && lf)
469 5345b4c7 2021-07-06 stsp got_lockfile_unlock(lf, -1);
470 c3821bef 2022-07-21 florian free(packed_refs_path);
471 5261c201 2018-04-01 stsp free(path_refs);
472 5261c201 2018-04-01 stsp return err;
476 5261c201 2018-04-01 stsp got_ref_close(struct got_reference *ref)
478 e09d28b1 2019-03-15 stsp if (ref->flags & GOT_REF_IS_SYMBOLIC) {
479 5261c201 2018-04-01 stsp free(ref->ref.symref.name);
480 e09d28b1 2019-03-15 stsp free(ref->ref.symref.ref);
482 5261c201 2018-04-01 stsp free(ref->ref.ref.name);
486 5261c201 2018-04-01 stsp struct got_reference *
487 5261c201 2018-04-01 stsp got_ref_dup(struct got_reference *ref)
489 5261c201 2018-04-01 stsp struct got_reference *ret;
491 5261c201 2018-04-01 stsp ret = calloc(1, sizeof(*ret));
492 5261c201 2018-04-01 stsp if (ret == NULL)
493 5261c201 2018-04-01 stsp return NULL;
495 5261c201 2018-04-01 stsp ret->flags = ref->flags;
496 5261c201 2018-04-01 stsp if (ref->flags & GOT_REF_IS_SYMBOLIC) {
497 5261c201 2018-04-01 stsp ret->ref.symref.name = strdup(ref->ref.symref.name);
498 5261c201 2018-04-01 stsp if (ret->ref.symref.name == NULL) {
500 5261c201 2018-04-01 stsp return NULL;
502 5261c201 2018-04-01 stsp ret->ref.symref.ref = strdup(ref->ref.symref.ref);
503 5261c201 2018-04-01 stsp if (ret->ref.symref.ref == NULL) {
504 5261c201 2018-04-01 stsp free(ret->ref.symref.name);
506 5261c201 2018-04-01 stsp return NULL;
509 4c4ce67b 2020-12-25 stsp ret->ref.ref.name = strdup(ref->ref.ref.name);
510 4c4ce67b 2020-12-25 stsp if (ret->ref.ref.name == NULL) {
512 5261c201 2018-04-01 stsp return NULL;
514 faf5b56f 2023-01-31 op memcpy(&ret->ref.ref.id, &ref->ref.ref.id,
515 faf5b56f 2023-01-31 op sizeof(ret->ref.ref.id));
518 5261c201 2018-04-01 stsp return ret;
521 b8bad2ba 2019-08-23 stsp const struct got_error *
522 b8bad2ba 2019-08-23 stsp got_reflist_entry_dup(struct got_reflist_entry **newp,
523 b8bad2ba 2019-08-23 stsp struct got_reflist_entry *re)
525 b8bad2ba 2019-08-23 stsp const struct got_error *err = NULL;
526 b8bad2ba 2019-08-23 stsp struct got_reflist_entry *new;
528 b8bad2ba 2019-08-23 stsp *newp = NULL;
530 b8bad2ba 2019-08-23 stsp new = malloc(sizeof(*new));
531 b8bad2ba 2019-08-23 stsp if (new == NULL)
532 b8bad2ba 2019-08-23 stsp return got_error_from_errno("malloc");
534 b8bad2ba 2019-08-23 stsp new->ref = got_ref_dup(re->ref);
535 b8bad2ba 2019-08-23 stsp if (new->ref == NULL) {
536 b8bad2ba 2019-08-23 stsp err = got_error_from_errno("got_ref_dup");
538 b8bad2ba 2019-08-23 stsp return err;
541 b8bad2ba 2019-08-23 stsp *newp = new;
542 b8bad2ba 2019-08-23 stsp return NULL;
545 cce2f485 2021-08-22 stsp const struct got_error *
546 cce2f485 2021-08-22 stsp got_ref_resolve_symbolic(struct got_reference **resolved,
547 5261c201 2018-04-01 stsp struct got_repository *repo, struct got_reference *ref)
549 5261c201 2018-04-01 stsp struct got_reference *nextref;
550 5261c201 2018-04-01 stsp const struct got_error *err;
552 2f17228e 2019-05-12 stsp err = got_ref_open(&nextref, repo, ref->ref.symref.ref, 0);
554 5261c201 2018-04-01 stsp return err;
556 5261c201 2018-04-01 stsp if (nextref->flags & GOT_REF_IS_SYMBOLIC)
557 cce2f485 2021-08-22 stsp err = got_ref_resolve_symbolic(resolved, repo, nextref);
559 5261c201 2018-04-01 stsp *resolved = got_ref_dup(nextref);
561 5261c201 2018-04-01 stsp got_ref_close(nextref);
562 5261c201 2018-04-01 stsp return err;
565 29e86f7a 2019-08-12 stsp static const struct got_error *
566 29e86f7a 2019-08-12 stsp ref_resolve(struct got_object_id **id, struct got_repository *repo,
567 29e86f7a 2019-08-12 stsp struct got_reference *ref, int recursion)
569 5261c201 2018-04-01 stsp const struct got_error *err;
571 29e86f7a 2019-08-12 stsp if (recursion <= 0)
572 29e86f7a 2019-08-12 stsp return got_error_msg(GOT_ERR_RECURSION,
573 29e86f7a 2019-08-12 stsp "reference recursion limit reached");
575 5261c201 2018-04-01 stsp if (ref->flags & GOT_REF_IS_SYMBOLIC) {
576 5261c201 2018-04-01 stsp struct got_reference *resolved = NULL;
577 cce2f485 2021-08-22 stsp err = got_ref_resolve_symbolic(&resolved, repo, ref);
578 5261c201 2018-04-01 stsp if (err == NULL)
579 29e86f7a 2019-08-12 stsp err = ref_resolve(id, repo, resolved, --recursion);
580 57b6f99a 2019-04-13 stsp if (resolved)
581 57b6f99a 2019-04-13 stsp got_ref_close(resolved);
582 5261c201 2018-04-01 stsp return err;
585 5261c201 2018-04-01 stsp *id = calloc(1, sizeof(**id));
586 5261c201 2018-04-01 stsp if (*id == NULL)
587 638f9024 2019-05-13 stsp return got_error_from_errno("calloc");
588 faf5b56f 2023-01-31 op memcpy(*id, &ref->ref.ref.id, sizeof(**id));
589 5261c201 2018-04-01 stsp return NULL;
592 29e86f7a 2019-08-12 stsp const struct got_error *
593 29e86f7a 2019-08-12 stsp got_ref_resolve(struct got_object_id **id, struct got_repository *repo,
594 29e86f7a 2019-08-12 stsp struct got_reference *ref)
596 29e86f7a 2019-08-12 stsp return ref_resolve(id, repo, ref, GOT_REF_RECURSE_MAX);
600 5261c201 2018-04-01 stsp got_ref_to_str(struct got_reference *ref)
604 271d2a38 2018-12-25 stsp if (ref->flags & GOT_REF_IS_SYMBOLIC)
605 271d2a38 2018-12-25 stsp return strdup(ref->ref.symref.ref);
607 faf5b56f 2023-01-31 op if (got_object_id_str(&str, &ref->ref.ref.id) != NULL)
608 271d2a38 2018-12-25 stsp return NULL;
610 5261c201 2018-04-01 stsp return str;
613 0bd18d37 2019-02-01 stsp const char *
614 0bd18d37 2019-02-01 stsp got_ref_get_name(struct got_reference *ref)
616 0bd18d37 2019-02-01 stsp if (ref->flags & GOT_REF_IS_SYMBOLIC)
617 0bd18d37 2019-02-01 stsp return ref->ref.symref.name;
619 0bd18d37 2019-02-01 stsp return ref->ref.ref.name;
622 aaf88317 2019-07-10 stsp const char *
623 aaf88317 2019-07-10 stsp got_ref_get_symref_target(struct got_reference *ref)
625 aaf88317 2019-07-10 stsp if (ref->flags & GOT_REF_IS_SYMBOLIC)
626 aaf88317 2019-07-10 stsp return ref->ref.symref.ref;
628 b8bad2ba 2019-08-23 stsp return NULL;
632 3f338f0a 2021-07-27 stsp got_ref_get_mtime(struct got_reference *ref)
634 3f338f0a 2021-07-27 stsp return ref->mtime;
637 b8bad2ba 2019-08-23 stsp const struct got_error *
638 b8bad2ba 2019-08-23 stsp got_ref_cmp_by_name(void *arg, int *cmp, struct got_reference *re1,
639 b8bad2ba 2019-08-23 stsp struct got_reference* re2)
641 b8bad2ba 2019-08-23 stsp const char *name1 = got_ref_get_name(re1);
642 b8bad2ba 2019-08-23 stsp const char *name2 = got_ref_get_name(re2);
644 b8bad2ba 2019-08-23 stsp *cmp = got_path_cmp(name1, name2, strlen(name1), strlen(name2));
645 aaf88317 2019-07-10 stsp return NULL;
648 d1f16636 2020-01-15 stsp const struct got_error *
649 d1f16636 2020-01-15 stsp got_ref_cmp_tags(void *arg, int *cmp, struct got_reference *ref1,
650 d1f16636 2020-01-15 stsp struct got_reference *ref2)
652 d1f16636 2020-01-15 stsp const struct got_error *err = NULL;
653 d1f16636 2020-01-15 stsp struct got_repository *repo = arg;
654 d1f16636 2020-01-15 stsp struct got_object_id *id1, *id2 = NULL;
655 d1f16636 2020-01-15 stsp struct got_tag_object *tag1 = NULL, *tag2 = NULL;
656 d1f16636 2020-01-15 stsp struct got_commit_object *commit1 = NULL, *commit2 = NULL;
657 d1f16636 2020-01-15 stsp time_t time1, time2;
661 d1f16636 2020-01-15 stsp err = got_ref_resolve(&id1, repo, ref1);
663 d1f16636 2020-01-15 stsp return err;
664 d1f16636 2020-01-15 stsp err = got_object_open_as_tag(&tag1, repo, id1);
666 d1f16636 2020-01-15 stsp if (err->code != GOT_ERR_OBJ_TYPE)
668 d1f16636 2020-01-15 stsp /* "lightweight" tag */
669 d1f16636 2020-01-15 stsp err = got_object_open_as_commit(&commit1, repo, id1);
672 d1f16636 2020-01-15 stsp time1 = got_object_commit_get_committer_time(commit1);
674 d1f16636 2020-01-15 stsp time1 = got_object_tag_get_tagger_time(tag1);
676 d1f16636 2020-01-15 stsp err = got_ref_resolve(&id2, repo, ref2);
679 d1f16636 2020-01-15 stsp err = got_object_open_as_tag(&tag2, repo, id2);
681 d1f16636 2020-01-15 stsp if (err->code != GOT_ERR_OBJ_TYPE)
683 d1f16636 2020-01-15 stsp /* "lightweight" tag */
684 d1f16636 2020-01-15 stsp err = got_object_open_as_commit(&commit2, repo, id2);
687 d1f16636 2020-01-15 stsp time2 = got_object_commit_get_committer_time(commit2);
689 d1f16636 2020-01-15 stsp time2 = got_object_tag_get_tagger_time(tag2);
691 d1f16636 2020-01-15 stsp /* Put latest tags first. */
692 d1f16636 2020-01-15 stsp if (time1 < time2)
694 d1f16636 2020-01-15 stsp else if (time1 > time2)
697 d1f16636 2020-01-15 stsp err = got_ref_cmp_by_name(NULL, cmp, ref2, ref1);
702 d1f16636 2020-01-15 stsp got_object_tag_close(tag1);
704 d1f16636 2020-01-15 stsp got_object_tag_close(tag2);
705 e600f124 2021-03-21 stsp if (commit1)
706 e600f124 2021-03-21 stsp got_object_commit_close(commit1);
707 e600f124 2021-03-21 stsp if (commit2)
708 e600f124 2021-03-21 stsp got_object_commit_close(commit2);
709 7f66531d 2021-11-16 stsp return err;
712 7f66531d 2021-11-16 stsp static const struct got_error *
713 7f66531d 2021-11-16 stsp get_committer_time(struct got_reference *ref, struct got_repository *repo)
715 7f66531d 2021-11-16 stsp const struct got_error *err = NULL;
716 7f66531d 2021-11-16 stsp int obj_type;
717 7f66531d 2021-11-16 stsp struct got_commit_object *commit = NULL;
718 7f66531d 2021-11-16 stsp struct got_tag_object *tag = NULL;
719 7f66531d 2021-11-16 stsp struct got_object_id *id = NULL;
721 7f66531d 2021-11-16 stsp err = got_ref_resolve(&id, repo, ref);
723 7f66531d 2021-11-16 stsp return err;
725 7f66531d 2021-11-16 stsp err = got_object_get_type(&obj_type, repo, id);
729 7f66531d 2021-11-16 stsp switch (obj_type) {
730 7f66531d 2021-11-16 stsp case GOT_OBJ_TYPE_COMMIT:
731 7f66531d 2021-11-16 stsp err = got_object_open_as_commit(&commit, repo, id);
734 7f66531d 2021-11-16 stsp ref->committer_time =
735 7f66531d 2021-11-16 stsp got_object_commit_get_committer_time(commit);
737 7f66531d 2021-11-16 stsp case GOT_OBJ_TYPE_TAG:
738 7f66531d 2021-11-16 stsp err = got_object_open_as_tag(&tag, repo, id);
741 7f66531d 2021-11-16 stsp ref->committer_time = got_object_tag_get_tagger_time(tag);
744 7f66531d 2021-11-16 stsp /* best effort for other object types */
745 7f66531d 2021-11-16 stsp ref->committer_time = got_ref_get_mtime(ref);
750 7f66531d 2021-11-16 stsp if (commit)
751 7f66531d 2021-11-16 stsp got_object_commit_close(commit);
753 7f66531d 2021-11-16 stsp got_object_tag_close(tag);
754 e600f124 2021-03-21 stsp return err;
757 e600f124 2021-03-21 stsp const struct got_error *
758 e600f124 2021-03-21 stsp got_ref_cmp_by_commit_timestamp_descending(void *arg, int *cmp,
759 e600f124 2021-03-21 stsp struct got_reference *ref1, struct got_reference *ref2)
761 0309152a 2021-11-20 stsp const struct got_error *err = NULL;
762 e600f124 2021-03-21 stsp struct got_repository *repo = arg;
766 2c9e323b 2021-10-10 stsp if (ref1->committer_time == 0) {
767 7f66531d 2021-11-16 stsp err = get_committer_time(ref1, repo);
769 2c9e323b 2021-10-10 stsp return err;
771 7f66531d 2021-11-16 stsp if (ref2->committer_time == 0) {
772 7f66531d 2021-11-16 stsp err = get_committer_time(ref2, repo);
774 2c9e323b 2021-10-10 stsp return err;
777 2c9e323b 2021-10-10 stsp if (ref1->committer_time < ref2->committer_time)
779 2c9e323b 2021-10-10 stsp else if (ref2->committer_time < ref1->committer_time)
782 42864987 2021-11-20 stsp return got_ref_cmp_by_name(arg, cmp, ref1, ref2);
784 d1f16636 2020-01-15 stsp return err;
787 779e1159 2021-06-18 stsp const struct got_error *
788 c0df5966 2021-12-31 stsp got_reflist_insert(struct got_reflist_entry **newp,
789 c0df5966 2021-12-31 stsp struct got_reflist_head *refs, struct got_reference *ref,
790 c0df5966 2021-12-31 stsp got_ref_cmp_cb cmp_cb, void *cmp_arg)
792 199a4027 2019-02-02 stsp const struct got_error *err;
793 d9dff0e5 2020-12-26 stsp struct got_reflist_entry *new, *re;
796 505287be 2019-03-15 stsp *newp = NULL;
798 3d8e0c5e 2022-09-05 stsp if (cmp_cb != got_ref_cmp_by_name && (ref->flags & GOT_REF_IS_PACKED)) {
800 7db2b0dd 2022-09-05 stsp * If we are not sorting elements by name then we must still
801 7db2b0dd 2022-09-05 stsp * detect collisions between a packed ref and an on-disk ref
802 7db2b0dd 2022-09-05 stsp * using the same name. On-disk refs take precedence and are
803 7db2b0dd 2022-09-05 stsp * already present on the list before packed refs get added.
805 7db2b0dd 2022-09-05 stsp TAILQ_FOREACH(re, refs, entry) {
806 3d8e0c5e 2022-09-05 stsp err = got_ref_cmp_by_name(NULL, &cmp, re->ref, ref);
808 7db2b0dd 2022-09-05 stsp return err;
809 3d8e0c5e 2022-09-05 stsp if (cmp == 0)
810 7db2b0dd 2022-09-05 stsp return NULL;
814 3d8e0c5e 2022-09-05 stsp new = malloc(sizeof(*new));
815 3d8e0c5e 2022-09-05 stsp if (new == NULL)
816 3d8e0c5e 2022-09-05 stsp return got_error_from_errno("malloc");
817 3d8e0c5e 2022-09-05 stsp new->ref = ref;
818 3d8e0c5e 2022-09-05 stsp *newp = new;
821 29b5c214 2019-02-04 stsp * We must de-duplicate entries on insert because packed-refs may
822 29b5c214 2019-02-04 stsp * contain redundant entries. On-disk refs take precedence.
823 29b5c214 2019-02-04 stsp * This code assumes that on-disk revs are read before packed-refs.
824 e397b6db 2019-02-04 stsp * We're iterating the list anyway, so insert elements sorted by name.
826 d9dff0e5 2020-12-26 stsp * Many callers will provide paths in a somewhat sorted order.
827 d9dff0e5 2020-12-26 stsp * Iterating backwards from the tail of the list should be more
828 d9dff0e5 2020-12-26 stsp * efficient than traversing through the entire list each time
829 d9dff0e5 2020-12-26 stsp * an element is inserted.
831 d9dff0e5 2020-12-26 stsp re = TAILQ_LAST(refs, got_reflist_head);
832 7a3c76f5 2019-02-05 stsp while (re) {
833 b8bad2ba 2019-08-23 stsp err = (*cmp_cb)(cmp_arg, &cmp, re->ref, new->ref);
835 b8bad2ba 2019-08-23 stsp return err;
836 e397b6db 2019-02-04 stsp if (cmp == 0) {
837 27a1ed03 2019-03-15 stsp /* duplicate */
839 505287be 2019-03-15 stsp *newp = NULL;
840 7a3c76f5 2019-02-05 stsp return NULL;
841 d9dff0e5 2020-12-26 stsp } else if (cmp < 0) {
842 d9dff0e5 2020-12-26 stsp TAILQ_INSERT_AFTER(refs, re, new, entry);
843 7a3c76f5 2019-02-05 stsp return NULL;
845 d9dff0e5 2020-12-26 stsp re = TAILQ_PREV(re, got_reflist_head, entry);
848 d9dff0e5 2020-12-26 stsp TAILQ_INSERT_HEAD(refs, new, entry);
849 199a4027 2019-02-02 stsp return NULL;
852 2d497592 2021-11-20 stsp const struct got_error *
853 2d497592 2021-11-20 stsp got_reflist_sort(struct got_reflist_head *refs,
854 2d497592 2021-11-20 stsp got_ref_cmp_cb cmp_cb, void *cmp_arg)
856 2d497592 2021-11-20 stsp const struct got_error *err = NULL;
857 2d497592 2021-11-20 stsp struct got_reflist_entry *re, *tmp, *new;
858 2d497592 2021-11-20 stsp struct got_reflist_head sorted;
860 2d497592 2021-11-20 stsp TAILQ_INIT(&sorted);
862 2d497592 2021-11-20 stsp TAILQ_FOREACH_SAFE(re, refs, entry, tmp) {
863 2d497592 2021-11-20 stsp struct got_reference *ref = re->ref;
864 2d497592 2021-11-20 stsp TAILQ_REMOVE(refs, re, entry);
866 2d497592 2021-11-20 stsp err = got_reflist_insert(&new, &sorted, ref, cmp_cb, cmp_arg);
867 2d497592 2021-11-20 stsp if (err || new == NULL /* duplicate */)
868 2d497592 2021-11-20 stsp got_ref_close(ref);
870 2d497592 2021-11-20 stsp return err;
873 2d497592 2021-11-20 stsp TAILQ_CONCAT(refs, &sorted, entry);
874 2d497592 2021-11-20 stsp return NULL;
877 a04f49d2 2019-02-04 stsp static const struct got_error *
878 29b5c214 2019-02-04 stsp gather_on_disk_refs(struct got_reflist_head *refs, const char *path_refs,
879 b8bad2ba 2019-08-23 stsp const char *subdir, struct got_repository *repo,
880 b8bad2ba 2019-08-23 stsp got_ref_cmp_cb cmp_cb, void *cmp_arg)
882 a04f49d2 2019-02-04 stsp const struct got_error *err = NULL;
883 a04f49d2 2019-02-04 stsp DIR *d = NULL;
884 a04f49d2 2019-02-04 stsp char *path_subdir;
886 b2070a3f 2020-03-22 stsp while (subdir[0] == '/')
889 a04f49d2 2019-02-04 stsp if (asprintf(&path_subdir, "%s/%s", path_refs, subdir) == -1)
890 638f9024 2019-05-13 stsp return got_error_from_errno("asprintf");
892 a04f49d2 2019-02-04 stsp d = opendir(path_subdir);
893 a04f49d2 2019-02-04 stsp if (d == NULL)
897 a04f49d2 2019-02-04 stsp struct dirent *dent;
898 a04f49d2 2019-02-04 stsp struct got_reference *ref;
899 a04f49d2 2019-02-04 stsp char *child;
902 a04f49d2 2019-02-04 stsp dent = readdir(d);
903 a04f49d2 2019-02-04 stsp if (dent == NULL)
906 a04f49d2 2019-02-04 stsp if (strcmp(dent->d_name, ".") == 0 ||
907 a04f49d2 2019-02-04 stsp strcmp(dent->d_name, "..") == 0)
910 20ccae39 2020-07-21 stsp err = got_path_dirent_type(&type, path_subdir, dent);
914 20ccae39 2020-07-21 stsp switch (type) {
915 a04f49d2 2019-02-04 stsp case DT_REG:
916 2f17228e 2019-05-12 stsp err = open_ref(&ref, path_refs, subdir, dent->d_name,
921 505287be 2019-03-15 stsp struct got_reflist_entry *new;
922 72acb3d8 2021-08-06 stsp err = got_reflist_insert(&new, refs, ref,
923 b8bad2ba 2019-08-23 stsp cmp_cb, cmp_arg);
924 505287be 2019-03-15 stsp if (err || new == NULL /* duplicate */)
925 505287be 2019-03-15 stsp got_ref_close(ref);
930 a04f49d2 2019-02-04 stsp case DT_DIR:
931 a04f49d2 2019-02-04 stsp if (asprintf(&child, "%s%s%s", subdir,
932 a04f49d2 2019-02-04 stsp subdir[0] == '\0' ? "" : "/", dent->d_name) == -1) {
933 638f9024 2019-05-13 stsp err = got_error_from_errno("asprintf");
936 b8bad2ba 2019-08-23 stsp err = gather_on_disk_refs(refs, path_refs, child, repo,
937 b8bad2ba 2019-08-23 stsp cmp_cb, cmp_arg);
938 a04f49d2 2019-02-04 stsp free(child);
946 a04f49d2 2019-02-04 stsp closedir(d);
947 a04f49d2 2019-02-04 stsp free(path_subdir);
948 a04f49d2 2019-02-04 stsp return err;
951 199a4027 2019-02-02 stsp const struct got_error *
952 29606af7 2019-08-23 stsp got_ref_list(struct got_reflist_head *refs, struct got_repository *repo,
953 b8bad2ba 2019-08-23 stsp const char *ref_namespace, got_ref_cmp_cb cmp_cb, void *cmp_arg)
955 199a4027 2019-02-02 stsp const struct got_error *err;
956 c3821bef 2022-07-21 florian char *packed_refs_path = NULL, *path_refs = NULL;
957 58e31a80 2022-06-27 op char *abs_namespace = NULL, *buf = NULL;
958 58e31a80 2022-06-27 op const char *ondisk_ref_namespace = NULL;
959 9bdd68dd 2021-01-02 naddy char *line = NULL;
960 29b5c214 2019-02-04 stsp FILE *f = NULL;
961 199a4027 2019-02-02 stsp struct got_reference *ref;
962 505287be 2019-03-15 stsp struct got_reflist_entry *new;
964 29606af7 2019-08-23 stsp if (ref_namespace == NULL || ref_namespace[0] == '\0') {
965 29606af7 2019-08-23 stsp path_refs = get_refs_dir_path(repo, GOT_REF_HEAD);
966 29606af7 2019-08-23 stsp if (path_refs == NULL) {
967 29606af7 2019-08-23 stsp err = got_error_from_errno("get_refs_dir_path");
970 29606af7 2019-08-23 stsp err = open_ref(&ref, path_refs, "", GOT_REF_HEAD, 0);
973 72acb3d8 2021-08-06 stsp err = got_reflist_insert(&new, refs, ref, cmp_cb, cmp_arg);
974 29606af7 2019-08-23 stsp if (err || new == NULL /* duplicate */)
975 29606af7 2019-08-23 stsp got_ref_close(ref);
976 f68a7890 2020-03-19 stsp if (err && err->code != GOT_ERR_NOT_REF)
979 b2070a3f 2020-03-22 stsp /* Try listing a single reference. */
980 b2070a3f 2020-03-22 stsp const char *refname = ref_namespace;
981 b2070a3f 2020-03-22 stsp path_refs = get_refs_dir_path(repo, refname);
982 b2070a3f 2020-03-22 stsp if (path_refs == NULL) {
983 b2070a3f 2020-03-22 stsp err = got_error_from_errno("get_refs_dir_path");
986 b2070a3f 2020-03-22 stsp err = open_ref(&ref, path_refs, "", refname, 0);
988 b2070a3f 2020-03-22 stsp if (err->code != GOT_ERR_NOT_REF)
990 b2070a3f 2020-03-22 stsp /* Try to look up references in a given namespace. */
992 72acb3d8 2021-08-06 stsp err = got_reflist_insert(&new, refs, ref,
993 b2070a3f 2020-03-22 stsp cmp_cb, cmp_arg);
994 b2070a3f 2020-03-22 stsp if (err || new == NULL /* duplicate */)
995 b2070a3f 2020-03-22 stsp got_ref_close(ref);
996 b2070a3f 2020-03-22 stsp return err;
1000 b2070a3f 2020-03-22 stsp if (ref_namespace) {
1001 b2070a3f 2020-03-22 stsp size_t len;
1002 b2070a3f 2020-03-22 stsp /* Canonicalize the path to eliminate double-slashes if any. */
1003 b2070a3f 2020-03-22 stsp if (asprintf(&abs_namespace, "/%s", ref_namespace) == -1) {
1004 b2070a3f 2020-03-22 stsp err = got_error_from_errno("asprintf");
1005 b2070a3f 2020-03-22 stsp goto done;
1007 b2070a3f 2020-03-22 stsp len = strlen(abs_namespace) + 1;
1008 b2070a3f 2020-03-22 stsp buf = malloc(len);
1009 b2070a3f 2020-03-22 stsp if (buf == NULL) {
1010 b2070a3f 2020-03-22 stsp err = got_error_from_errno("malloc");
1011 b2070a3f 2020-03-22 stsp goto done;
1013 b2070a3f 2020-03-22 stsp err = got_canonpath(abs_namespace, buf, len);
1015 b2070a3f 2020-03-22 stsp goto done;
1016 b2070a3f 2020-03-22 stsp ondisk_ref_namespace = buf;
1017 b2070a3f 2020-03-22 stsp while (ondisk_ref_namespace[0] == '/')
1018 b2070a3f 2020-03-22 stsp ondisk_ref_namespace++;
1019 b2070a3f 2020-03-22 stsp if (strncmp(ondisk_ref_namespace, "refs/", 5) == 0)
1020 b2070a3f 2020-03-22 stsp ondisk_ref_namespace += 5;
1021 b2070a3f 2020-03-22 stsp else if (strcmp(ondisk_ref_namespace, "refs") == 0)
1022 b2070a3f 2020-03-22 stsp ondisk_ref_namespace = "";
1025 29b5c214 2019-02-04 stsp /* Gather on-disk refs before parsing packed-refs. */
1026 29b5c214 2019-02-04 stsp free(path_refs);
1027 29b5c214 2019-02-04 stsp path_refs = get_refs_dir_path(repo, "");
1028 29b5c214 2019-02-04 stsp if (path_refs == NULL) {
1029 638f9024 2019-05-13 stsp err = got_error_from_errno("get_refs_dir_path");
1030 29b5c214 2019-02-04 stsp goto done;
1032 29606af7 2019-08-23 stsp err = gather_on_disk_refs(refs, path_refs,
1033 6aeab596 2019-08-28 stsp ondisk_ref_namespace ? ondisk_ref_namespace : "", repo,
1034 6aeab596 2019-08-28 stsp cmp_cb, cmp_arg);
1036 29b5c214 2019-02-04 stsp goto done;
1039 29b5c214 2019-02-04 stsp * The packed-refs file may contain redundant entries, in which
1040 29b5c214 2019-02-04 stsp * case on-disk refs take precedence.
1042 199a4027 2019-02-02 stsp packed_refs_path = got_repo_get_path_packed_refs(repo);
1043 29b5c214 2019-02-04 stsp if (packed_refs_path == NULL) {
1044 638f9024 2019-05-13 stsp err = got_error_from_errno("got_repo_get_path_packed_refs");
1045 29b5c214 2019-02-04 stsp goto done;
1048 00fe21f2 2021-12-31 stsp f = fopen(packed_refs_path, "re");
1050 7a90b680 2021-01-02 naddy size_t linesize = 0;
1051 9bdd68dd 2021-01-02 naddy ssize_t linelen;
1052 3f338f0a 2021-07-27 stsp struct stat sb;
1054 3f338f0a 2021-07-27 stsp if (fstat(fileno(f), &sb) == -1) {
1055 3f338f0a 2021-07-27 stsp err = got_error_from_errno2("fstat", packed_refs_path);
1056 3f338f0a 2021-07-27 stsp goto done;
1059 9bdd68dd 2021-01-02 naddy linelen = getline(&line, &linesize, f);
1060 9bdd68dd 2021-01-02 naddy if (linelen == -1) {
1061 0bb4abae 2019-03-15 stsp if (feof(f))
1063 0bb4abae 2019-03-15 stsp err = got_ferror(f, GOT_ERR_BAD_REF_DATA);
1064 0bb4abae 2019-03-15 stsp goto done;
1066 9bdd68dd 2021-01-02 naddy if (linelen > 0 && line[linelen - 1] == '\n')
1067 9bdd68dd 2021-01-02 naddy line[linelen - 1] = '\0';
1068 3f338f0a 2021-07-27 stsp err = parse_packed_ref_line(&ref, NULL, line,
1069 3f338f0a 2021-07-27 stsp sb.st_mtime);
1071 199a4027 2019-02-02 stsp goto done;
1072 76b4ead2 2019-02-03 stsp if (ref) {
1073 29606af7 2019-08-23 stsp if (ref_namespace) {
1074 29606af7 2019-08-23 stsp const char *name;
1075 29606af7 2019-08-23 stsp name = got_ref_get_name(ref);
1076 b2070a3f 2020-03-22 stsp if (!got_path_is_child(name,
1077 b2070a3f 2020-03-22 stsp ref_namespace,
1078 b2070a3f 2020-03-22 stsp strlen(ref_namespace))) {
1079 29606af7 2019-08-23 stsp got_ref_close(ref);
1083 72acb3d8 2021-08-06 stsp err = got_reflist_insert(&new, refs, ref,
1084 b8bad2ba 2019-08-23 stsp cmp_cb, cmp_arg);
1085 505287be 2019-03-15 stsp if (err || new == NULL /* duplicate */)
1086 505287be 2019-03-15 stsp got_ref_close(ref);
1088 76b4ead2 2019-02-03 stsp goto done;
1093 c3821bef 2022-07-21 florian free(packed_refs_path);
1094 b2070a3f 2020-03-22 stsp free(abs_namespace);
1095 b2070a3f 2020-03-22 stsp free(buf);
1096 9bdd68dd 2021-01-02 naddy free(line);
1097 a04f49d2 2019-02-04 stsp free(path_refs);
1098 56b63ca4 2021-01-22 stsp if (f && fclose(f) == EOF && err == NULL)
1099 638f9024 2019-05-13 stsp err = got_error_from_errno("fclose");
1100 199a4027 2019-02-02 stsp return err;
1104 e2e879a0 2019-03-11 stsp got_ref_list_free(struct got_reflist_head *refs)
1106 e2e879a0 2019-03-11 stsp struct got_reflist_entry *re;
1108 d9dff0e5 2020-12-26 stsp while ((re = TAILQ_FIRST(refs))) {
1109 d9dff0e5 2020-12-26 stsp TAILQ_REMOVE(refs, re, entry);
1110 af8a5c4a 2021-05-21 stsp got_ref_close(re->ref);
1116 b249b824 2019-05-09 stsp got_ref_is_symbolic(struct got_reference *ref)
1118 b249b824 2019-05-09 stsp return (ref->flags & GOT_REF_IS_SYMBOLIC);
1121 b249b824 2019-05-09 stsp const struct got_error *
1122 b249b824 2019-05-09 stsp got_ref_change_ref(struct got_reference *ref, struct got_object_id *id)
1124 b249b824 2019-05-09 stsp if (ref->flags & GOT_REF_IS_SYMBOLIC)
1125 b249b824 2019-05-09 stsp return got_error(GOT_ERR_BAD_REF_TYPE);
1127 faf5b56f 2023-01-31 op memcpy(&ref->ref.ref.id, id, sizeof(ref->ref.ref.id));
1128 b249b824 2019-05-09 stsp return NULL;
1131 9e672c74 2019-03-11 stsp const struct got_error *
1132 d7b899ab 2020-03-25 stsp got_ref_change_symref(struct got_reference *ref, const char *refname)
1134 b249b824 2019-05-09 stsp char *new_name;
1136 b249b824 2019-05-09 stsp if ((ref->flags & GOT_REF_IS_SYMBOLIC) == 0)
1137 b249b824 2019-05-09 stsp return got_error(GOT_ERR_BAD_REF_TYPE);
1139 b249b824 2019-05-09 stsp new_name = strdup(refname);
1140 b249b824 2019-05-09 stsp if (new_name == NULL)
1141 638f9024 2019-05-13 stsp return got_error_from_errno("strdup");
1143 d7b899ab 2020-03-25 stsp free(ref->ref.symref.ref);
1144 d7b899ab 2020-03-25 stsp ref->ref.symref.ref = new_name;
1145 b249b824 2019-05-09 stsp return NULL;
1148 b249b824 2019-05-09 stsp const struct got_error *
1149 e8a967e0 2020-03-21 stsp got_ref_change_symref_to_ref(struct got_reference *symref,
1150 e8a967e0 2020-03-21 stsp struct got_object_id *id)
1152 e8a967e0 2020-03-21 stsp if ((symref->flags & GOT_REF_IS_SYMBOLIC) == 0)
1153 e8a967e0 2020-03-21 stsp return got_error(GOT_ERR_BAD_REF_TYPE);
1155 e8a967e0 2020-03-21 stsp symref->ref.ref.name = symref->ref.symref.name;
1156 faf5b56f 2023-01-31 op memcpy(&symref->ref.ref.id, id, sizeof(symref->ref.ref.id));
1157 e8a967e0 2020-03-21 stsp symref->flags &= ~GOT_REF_IS_SYMBOLIC;
1158 e8a967e0 2020-03-21 stsp return NULL;
1161 e8a967e0 2020-03-21 stsp const struct got_error *
1162 9e672c74 2019-03-11 stsp got_ref_write(struct got_reference *ref, struct got_repository *repo)
1164 9e672c74 2019-03-11 stsp const struct got_error *err = NULL, *unlock_err = NULL;
1165 9e672c74 2019-03-11 stsp const char *name = got_ref_get_name(ref);
1166 9e672c74 2019-03-11 stsp char *path_refs = NULL, *path = NULL, *tmppath = NULL;
1167 9e672c74 2019-03-11 stsp struct got_lockfile *lf = NULL;
1168 9e672c74 2019-03-11 stsp FILE *f = NULL;
1170 9e672c74 2019-03-11 stsp struct stat sb;
1172 9e672c74 2019-03-11 stsp path_refs = get_refs_dir_path(repo, name);
1173 9e672c74 2019-03-11 stsp if (path_refs == NULL) {
1174 638f9024 2019-05-13 stsp err = got_error_from_errno2("get_refs_dir_path", name);
1175 9e672c74 2019-03-11 stsp goto done;
1178 9e672c74 2019-03-11 stsp if (asprintf(&path, "%s/%s", path_refs, name) == -1) {
1179 638f9024 2019-05-13 stsp err = got_error_from_errno("asprintf");
1180 9e672c74 2019-03-11 stsp goto done;
1183 b90054ed 2022-11-01 stsp err = got_opentemp_named(&tmppath, &f, path, "");
1184 49c7094f 2019-03-11 stsp if (err) {
1185 d1667f0d 2019-03-11 stsp char *parent;
1186 49c7094f 2019-03-11 stsp if (!(err->code == GOT_ERR_ERRNO && errno == ENOENT))
1187 5e1c9f23 2019-03-11 stsp goto done;
1188 d1667f0d 2019-03-11 stsp err = got_path_dirname(&parent, path);
1190 0cd1c46a 2019-03-11 stsp goto done;
1191 0cd1c46a 2019-03-11 stsp err = got_path_mkdir(parent);
1192 5e1c9f23 2019-03-11 stsp free(parent);
1194 0cd1c46a 2019-03-11 stsp goto done;
1195 b90054ed 2022-11-01 stsp err = got_opentemp_named(&tmppath, &f, path, "");
1197 0cd1c46a 2019-03-11 stsp goto done;
1200 9e672c74 2019-03-11 stsp if (ref->flags & GOT_REF_IS_SYMBOLIC) {
1201 9e672c74 2019-03-11 stsp n = fprintf(f, "ref: %s\n", ref->ref.symref.ref);
1202 9e672c74 2019-03-11 stsp if (n != strlen(ref->ref.symref.ref) + 6) {
1203 9e672c74 2019-03-11 stsp err = got_ferror(f, GOT_ERR_IO);
1204 9e672c74 2019-03-11 stsp goto done;
1210 faf5b56f 2023-01-31 op err = got_object_id_str(&hex, &ref->ref.ref.id);
1213 faf5b56f 2023-01-31 op len = strlen(hex);
1214 9e672c74 2019-03-11 stsp n = fprintf(f, "%s\n", hex);
1216 faf5b56f 2023-01-31 op if (n != len + 1) {
1217 9e672c74 2019-03-11 stsp err = got_ferror(f, GOT_ERR_IO);
1218 9e672c74 2019-03-11 stsp goto done;
1222 2f17228e 2019-05-12 stsp if (ref->lf == NULL) {
1223 5345b4c7 2021-07-06 stsp err = got_lockfile_lock(&lf, path, -1);
1225 2f17228e 2019-05-12 stsp goto done;
1228 9e672c74 2019-03-11 stsp /* XXX: check if old content matches our expectations? */
1230 0cd1c46a 2019-03-11 stsp if (stat(path, &sb) != 0) {
1231 0cd1c46a 2019-03-11 stsp if (errno != ENOENT) {
1232 638f9024 2019-05-13 stsp err = got_error_from_errno2("stat", path);
1233 0cd1c46a 2019-03-11 stsp goto done;
1235 0cd1c46a 2019-03-11 stsp sb.st_mode = GOT_DEFAULT_FILE_MODE;
1238 3818e3c4 2020-11-01 naddy if (fchmod(fileno(f), sb.st_mode) != 0) {
1239 3818e3c4 2020-11-01 naddy err = got_error_from_errno2("fchmod", tmppath);
1240 3818e3c4 2020-11-01 naddy goto done;
1243 9e672c74 2019-03-11 stsp if (rename(tmppath, path) != 0) {
1244 638f9024 2019-05-13 stsp err = got_error_from_errno3("rename", tmppath, path);
1245 9e672c74 2019-03-11 stsp goto done;
1247 9e672c74 2019-03-11 stsp free(tmppath);
1248 9e672c74 2019-03-11 stsp tmppath = NULL;
1250 3f338f0a 2021-07-27 stsp if (stat(path, &sb) == -1) {
1251 3f338f0a 2021-07-27 stsp err = got_error_from_errno2("stat", path);
1252 3f338f0a 2021-07-27 stsp goto done;
1254 3f338f0a 2021-07-27 stsp ref->mtime = sb.st_mtime;
1256 2f17228e 2019-05-12 stsp if (ref->lf == NULL && lf)
1257 5345b4c7 2021-07-06 stsp unlock_err = got_lockfile_unlock(lf, -1);
1259 56b63ca4 2021-01-22 stsp if (fclose(f) == EOF && err == NULL)
1260 638f9024 2019-05-13 stsp err = got_error_from_errno("fclose");
1262 9e672c74 2019-03-11 stsp free(path_refs);
1263 9e672c74 2019-03-11 stsp free(path);
1264 9e672c74 2019-03-11 stsp if (tmppath) {
1265 a06ca3f7 2022-10-15 stsp if (unlink(tmppath) == -1 && err == NULL)
1266 638f9024 2019-05-13 stsp err = got_error_from_errno2("unlink", tmppath);
1267 9e672c74 2019-03-11 stsp free(tmppath);
1269 2d2e1378 2019-03-11 stsp return err ? err : unlock_err;
1272 598a8b91 2019-03-15 stsp static const struct got_error *
1273 598a8b91 2019-03-15 stsp delete_packed_ref(struct got_reference *delref, struct got_repository *repo)
1275 598a8b91 2019-03-15 stsp const struct got_error *err = NULL, *unlock_err = NULL;
1276 598a8b91 2019-03-15 stsp struct got_lockfile *lf = NULL;
1277 598a8b91 2019-03-15 stsp FILE *f = NULL, *tmpf = NULL;
1278 9bdd68dd 2021-01-02 naddy char *line = NULL, *packed_refs_path, *tmppath = NULL;
1279 7a90b680 2021-01-02 naddy size_t linesize = 0;
1280 598a8b91 2019-03-15 stsp struct got_reflist_head refs;
1281 598a8b91 2019-03-15 stsp int found_delref = 0;
1283 598a8b91 2019-03-15 stsp /* The packed-refs file does not cotain symbolic references. */
1284 598a8b91 2019-03-15 stsp if (delref->flags & GOT_REF_IS_SYMBOLIC)
1285 598a8b91 2019-03-15 stsp return got_error(GOT_ERR_BAD_REF_DATA);
1287 d9dff0e5 2020-12-26 stsp TAILQ_INIT(&refs);
1289 598a8b91 2019-03-15 stsp packed_refs_path = got_repo_get_path_packed_refs(repo);
1290 598a8b91 2019-03-15 stsp if (packed_refs_path == NULL)
1291 638f9024 2019-05-13 stsp return got_error_from_errno("got_repo_get_path_packed_refs");
1293 b90054ed 2022-11-01 stsp err = got_opentemp_named(&tmppath, &tmpf, packed_refs_path, "");
1295 598a8b91 2019-03-15 stsp goto done;
1297 2f17228e 2019-05-12 stsp if (delref->lf == NULL) {
1298 5345b4c7 2021-07-06 stsp err = got_lockfile_lock(&lf, packed_refs_path, -1);
1300 2f17228e 2019-05-12 stsp goto done;
1303 00fe21f2 2021-12-31 stsp f = fopen(packed_refs_path, "re");
1304 598a8b91 2019-03-15 stsp if (f == NULL) {
1305 638f9024 2019-05-13 stsp err = got_error_from_errno2("fopen", packed_refs_path);
1306 598a8b91 2019-03-15 stsp goto done;
1309 9bdd68dd 2021-01-02 naddy ssize_t linelen;
1310 598a8b91 2019-03-15 stsp struct got_reference *ref;
1311 598a8b91 2019-03-15 stsp struct got_reflist_entry *new;
1313 9bdd68dd 2021-01-02 naddy linelen = getline(&line, &linesize, f);
1314 9bdd68dd 2021-01-02 naddy if (linelen == -1) {
1315 598a8b91 2019-03-15 stsp if (feof(f))
1317 598a8b91 2019-03-15 stsp err = got_ferror(f, GOT_ERR_BAD_REF_DATA);
1318 598a8b91 2019-03-15 stsp goto done;
1320 9bdd68dd 2021-01-02 naddy if (linelen > 0 && line[linelen - 1] == '\n')
1321 9bdd68dd 2021-01-02 naddy line[linelen - 1] = '\0';
1322 3f338f0a 2021-07-27 stsp err = parse_packed_ref_line(&ref, NULL, line, 0);
1324 598a8b91 2019-03-15 stsp goto done;
1325 598a8b91 2019-03-15 stsp if (ref == NULL)
1328 598a8b91 2019-03-15 stsp if (strcmp(ref->ref.ref.name, delref->ref.ref.name) == 0 &&
1329 faf5b56f 2023-01-31 op got_object_id_cmp(&ref->ref.ref.id,
1330 faf5b56f 2023-01-31 op &delref->ref.ref.id) == 0) {
1331 598a8b91 2019-03-15 stsp found_delref = 1;
1332 598a8b91 2019-03-15 stsp got_ref_close(ref);
1336 72acb3d8 2021-08-06 stsp err = got_reflist_insert(&new, &refs, ref,
1337 b8bad2ba 2019-08-23 stsp got_ref_cmp_by_name, NULL);
1338 598a8b91 2019-03-15 stsp if (err || new == NULL /* duplicate */)
1339 598a8b91 2019-03-15 stsp got_ref_close(ref);
1341 598a8b91 2019-03-15 stsp goto done;
1344 598a8b91 2019-03-15 stsp if (found_delref) {
1345 598a8b91 2019-03-15 stsp struct got_reflist_entry *re;
1347 598a8b91 2019-03-15 stsp struct stat sb;
1349 598a8b91 2019-03-15 stsp n = fprintf(tmpf, "%s\n", GOT_PACKED_REFS_HEADER);
1350 598a8b91 2019-03-15 stsp if (n != sizeof(GOT_PACKED_REFS_HEADER)) {
1351 598a8b91 2019-03-15 stsp err = got_ferror(f, GOT_ERR_IO);
1352 598a8b91 2019-03-15 stsp goto done;
1355 d9dff0e5 2020-12-26 stsp TAILQ_FOREACH(re, &refs, entry) {
1359 faf5b56f 2023-01-31 op err = got_object_id_str(&hex, &re->ref->ref.ref.id);
1361 598a8b91 2019-03-15 stsp goto done;
1362 faf5b56f 2023-01-31 op len = strlen(hex);
1363 598a8b91 2019-03-15 stsp n = fprintf(tmpf, "%s ", hex);
1365 faf5b56f 2023-01-31 op if (n != len + 1) {
1366 598a8b91 2019-03-15 stsp err = got_ferror(f, GOT_ERR_IO);
1367 598a8b91 2019-03-15 stsp goto done;
1370 598a8b91 2019-03-15 stsp n = fprintf(tmpf, "%s\n", re->ref->ref.ref.name);
1371 598a8b91 2019-03-15 stsp if (n != strlen(re->ref->ref.ref.name) + 1) {
1372 598a8b91 2019-03-15 stsp err = got_ferror(f, GOT_ERR_IO);
1373 598a8b91 2019-03-15 stsp goto done;
1377 598a8b91 2019-03-15 stsp if (fflush(tmpf) != 0) {
1378 638f9024 2019-05-13 stsp err = got_error_from_errno("fflush");
1379 598a8b91 2019-03-15 stsp goto done;
1382 3818e3c4 2020-11-01 naddy if (fstat(fileno(f), &sb) != 0) {
1383 598a8b91 2019-03-15 stsp if (errno != ENOENT) {
1384 3818e3c4 2020-11-01 naddy err = got_error_from_errno2("fstat",
1385 230a42bd 2019-05-11 jcs packed_refs_path);
1386 598a8b91 2019-03-15 stsp goto done;
1388 598a8b91 2019-03-15 stsp sb.st_mode = GOT_DEFAULT_FILE_MODE;
1391 3818e3c4 2020-11-01 naddy if (fchmod(fileno(tmpf), sb.st_mode) != 0) {
1392 3818e3c4 2020-11-01 naddy err = got_error_from_errno2("fchmod", tmppath);
1393 598a8b91 2019-03-15 stsp goto done;
1396 3818e3c4 2020-11-01 naddy if (rename(tmppath, packed_refs_path) != 0) {
1397 3818e3c4 2020-11-01 naddy err = got_error_from_errno3("rename", tmppath,
1398 230a42bd 2019-05-11 jcs packed_refs_path);
1399 598a8b91 2019-03-15 stsp goto done;
1401 15c388a9 2022-10-15 stsp free(tmppath);
1402 15c388a9 2022-10-15 stsp tmppath = NULL;
1405 2f17228e 2019-05-12 stsp if (delref->lf == NULL && lf)
1406 5345b4c7 2021-07-06 stsp unlock_err = got_lockfile_unlock(lf, -1);
1408 56b63ca4 2021-01-22 stsp if (fclose(f) == EOF && err == NULL)
1409 638f9024 2019-05-13 stsp err = got_error_from_errno("fclose");
1411 15c388a9 2022-10-15 stsp if (tmppath && unlink(tmppath) == -1 && err == NULL)
1412 15c388a9 2022-10-15 stsp err = got_error_from_errno2("unlink", tmppath);
1413 15c388a9 2022-10-15 stsp if (tmpf && fclose(tmpf) == EOF && err == NULL)
1414 15c388a9 2022-10-15 stsp err = got_error_from_errno("fclose");
1415 598a8b91 2019-03-15 stsp free(tmppath);
1416 598a8b91 2019-03-15 stsp free(packed_refs_path);
1417 9bdd68dd 2021-01-02 naddy free(line);
1418 598a8b91 2019-03-15 stsp got_ref_list_free(&refs);
1419 598a8b91 2019-03-15 stsp return err ? err : unlock_err;
1422 2a104ff6 2020-09-21 stsp static const struct got_error *
1423 2a104ff6 2020-09-21 stsp delete_loose_ref(struct got_reference *ref, struct got_repository *repo)
1425 2d2e1378 2019-03-11 stsp const struct got_error *err = NULL, *unlock_err = NULL;
1426 2d2e1378 2019-03-11 stsp const char *name = got_ref_get_name(ref);
1427 2d2e1378 2019-03-11 stsp char *path_refs = NULL, *path = NULL;
1428 2d2e1378 2019-03-11 stsp struct got_lockfile *lf = NULL;
1430 2d2e1378 2019-03-11 stsp path_refs = get_refs_dir_path(repo, name);
1431 2d2e1378 2019-03-11 stsp if (path_refs == NULL) {
1432 638f9024 2019-05-13 stsp err = got_error_from_errno2("get_refs_dir_path", name);
1433 2d2e1378 2019-03-11 stsp goto done;
1436 2d2e1378 2019-03-11 stsp if (asprintf(&path, "%s/%s", path_refs, name) == -1) {
1437 638f9024 2019-05-13 stsp err = got_error_from_errno("asprintf");
1438 2d2e1378 2019-03-11 stsp goto done;
1441 2f17228e 2019-05-12 stsp if (ref->lf == NULL) {
1442 5345b4c7 2021-07-06 stsp err = got_lockfile_lock(&lf, path, -1);
1444 2f17228e 2019-05-12 stsp goto done;
1447 2d2e1378 2019-03-11 stsp /* XXX: check if old content matches our expectations? */
1449 a06ca3f7 2022-10-15 stsp if (unlink(path) == -1)
1450 638f9024 2019-05-13 stsp err = got_error_from_errno2("unlink", path);
1452 2f17228e 2019-05-12 stsp if (ref->lf == NULL && lf)
1453 5345b4c7 2021-07-06 stsp unlock_err = got_lockfile_unlock(lf, -1);
1455 2d2e1378 2019-03-11 stsp free(path_refs);
1456 2d2e1378 2019-03-11 stsp free(path);
1457 9e672c74 2019-03-11 stsp return err ? err : unlock_err;
1460 2a104ff6 2020-09-21 stsp const struct got_error *
1461 2a104ff6 2020-09-21 stsp got_ref_delete(struct got_reference *ref, struct got_repository *repo)
1463 2a104ff6 2020-09-21 stsp const struct got_error *err = NULL;
1464 2a104ff6 2020-09-21 stsp struct got_reference *ref2;
1466 2a104ff6 2020-09-21 stsp if (ref->flags & GOT_REF_IS_PACKED) {
1467 2a104ff6 2020-09-21 stsp err = delete_packed_ref(ref, repo);
1469 2a104ff6 2020-09-21 stsp return err;
1471 a1c4175c 2020-09-22 stsp err = got_ref_open(&ref2, repo, got_ref_get_name(ref), 0);
1472 2a104ff6 2020-09-21 stsp if (err) {
1473 2a104ff6 2020-09-21 stsp if (err->code == GOT_ERR_NOT_REF)
1474 2a104ff6 2020-09-21 stsp return NULL;
1475 2a104ff6 2020-09-21 stsp return err;
1478 2a104ff6 2020-09-21 stsp err = delete_loose_ref(ref2, repo);
1479 2a104ff6 2020-09-21 stsp got_ref_close(ref2);
1480 2a104ff6 2020-09-21 stsp return err;
1482 2a104ff6 2020-09-21 stsp err = delete_loose_ref(ref, repo);
1484 2a104ff6 2020-09-21 stsp return err;
1486 a1c4175c 2020-09-22 stsp err = got_ref_open(&ref2, repo, got_ref_get_name(ref), 0);
1487 2a104ff6 2020-09-21 stsp if (err) {
1488 2a104ff6 2020-09-21 stsp if (err->code == GOT_ERR_NOT_REF)
1489 2a104ff6 2020-09-21 stsp return NULL;
1490 2a104ff6 2020-09-21 stsp return err;
1493 2a104ff6 2020-09-21 stsp err = delete_packed_ref(ref2, repo);
1494 2a104ff6 2020-09-21 stsp got_ref_close(ref2);
1495 2a104ff6 2020-09-21 stsp return err;
1499 2f17228e 2019-05-12 stsp const struct got_error *
1500 2f17228e 2019-05-12 stsp got_ref_unlock(struct got_reference *ref)
1502 2f17228e 2019-05-12 stsp const struct got_error *err;
1503 5345b4c7 2021-07-06 stsp err = got_lockfile_unlock(ref->lf, -1);
1504 2f17228e 2019-05-12 stsp ref->lf = NULL;
1505 2f17228e 2019-05-12 stsp return err;
1508 7b5b670e 2020-12-25 stsp struct got_reflist_object_id_map {
1509 7b5b670e 2020-12-25 stsp struct got_object_idset *idset;
1512 7b5b670e 2020-12-25 stsp struct got_reflist_object_id_map_entry {
1513 7b5b670e 2020-12-25 stsp struct got_reflist_head refs;
1516 24202e46 2020-12-26 stsp static const struct got_error *
1517 24202e46 2020-12-26 stsp add_object_id_map_entry(struct got_object_idset *idset,
1518 24202e46 2020-12-26 stsp struct got_object_id *id, struct got_reflist_entry *re)
1520 24202e46 2020-12-26 stsp const struct got_error *err = NULL;
1521 24202e46 2020-12-26 stsp struct got_reflist_object_id_map_entry *ent;
1522 24202e46 2020-12-26 stsp struct got_reflist_entry *new;
1524 24202e46 2020-12-26 stsp ent = got_object_idset_get(idset, id);
1525 24202e46 2020-12-26 stsp if (ent == NULL) {
1526 24202e46 2020-12-26 stsp ent = malloc(sizeof(*ent));
1527 24202e46 2020-12-26 stsp if (ent == NULL)
1528 24202e46 2020-12-26 stsp return got_error_from_errno("malloc");
1530 24202e46 2020-12-26 stsp TAILQ_INIT(&ent->refs);
1531 24202e46 2020-12-26 stsp err = got_object_idset_add(idset, id, ent);
1534 24202e46 2020-12-26 stsp return err;
1538 24202e46 2020-12-26 stsp err = got_reflist_entry_dup(&new, re);
1540 24202e46 2020-12-26 stsp return err;
1542 24202e46 2020-12-26 stsp TAILQ_INSERT_TAIL(&ent->refs, new, entry);
1543 24202e46 2020-12-26 stsp return NULL;
1546 7b5b670e 2020-12-25 stsp const struct got_error *
1547 7b5b670e 2020-12-25 stsp got_reflist_object_id_map_create(struct got_reflist_object_id_map **map,
1548 7b5b670e 2020-12-25 stsp struct got_reflist_head *refs, struct got_repository *repo)
1550 7b5b670e 2020-12-25 stsp const struct got_error *err = NULL;
1551 7b5b670e 2020-12-25 stsp struct got_object_idset *idset;
1552 7b5b670e 2020-12-25 stsp struct got_object_id *id = NULL;
1553 7b5b670e 2020-12-25 stsp struct got_reflist_entry *re;
1555 7b5b670e 2020-12-25 stsp idset = got_object_idset_alloc();
1556 7b5b670e 2020-12-25 stsp if (idset == NULL)
1557 7b5b670e 2020-12-25 stsp return got_error_from_errno("got_object_idset_alloc");
1559 7b5b670e 2020-12-25 stsp *map = malloc(sizeof(**map));
1560 7b5b670e 2020-12-25 stsp if (*map == NULL) {
1561 7b5b670e 2020-12-25 stsp got_object_idset_free(idset);
1562 7b5b670e 2020-12-25 stsp return got_error_from_errno("malloc");
1564 7b5b670e 2020-12-25 stsp (*map)->idset = idset;
1566 d9dff0e5 2020-12-26 stsp TAILQ_FOREACH(re, refs, entry) {
1567 24202e46 2020-12-26 stsp struct got_tag_object *tag = NULL;
1569 7b5b670e 2020-12-25 stsp err = got_ref_resolve(&id, repo, re->ref);
1571 7b5b670e 2020-12-25 stsp goto done;
1573 24202e46 2020-12-26 stsp err = add_object_id_map_entry(idset, id, re);
1575 24202e46 2020-12-26 stsp goto done;
1577 24202e46 2020-12-26 stsp if (strstr(got_ref_get_name(re->ref), "/tags/") == NULL) {
1579 24202e46 2020-12-26 stsp id = NULL;
1583 24202e46 2020-12-26 stsp err = got_object_open_as_tag(&tag, repo, id);
1584 24202e46 2020-12-26 stsp if (err) {
1585 24202e46 2020-12-26 stsp if (err->code != GOT_ERR_OBJ_TYPE)
1586 7b5b670e 2020-12-25 stsp goto done;
1587 24202e46 2020-12-26 stsp /* Ref points at something other than a tag. */
1588 24202e46 2020-12-26 stsp err = NULL;
1589 24202e46 2020-12-26 stsp tag = NULL;
1591 24202e46 2020-12-26 stsp id = NULL;
1595 24202e46 2020-12-26 stsp err = add_object_id_map_entry(idset,
1596 24202e46 2020-12-26 stsp got_object_tag_get_object_id(tag), re);
1597 f0ff8d4c 2020-12-26 stsp got_object_tag_close(tag);
1599 7b5b670e 2020-12-25 stsp goto done;
1602 7b5b670e 2020-12-25 stsp id = NULL;
1606 7b5b670e 2020-12-25 stsp if (err) {
1607 f193b038 2020-12-26 stsp got_reflist_object_id_map_free(*map);
1608 7b5b670e 2020-12-25 stsp *map = NULL;
1610 a53af95f 2020-12-26 stsp return err;
1613 7b5b670e 2020-12-25 stsp struct got_reflist_head *
1614 7b5b670e 2020-12-25 stsp got_reflist_object_id_map_lookup(struct got_reflist_object_id_map *map,
1615 7b5b670e 2020-12-25 stsp struct got_object_id *id)
1617 7b5b670e 2020-12-25 stsp struct got_reflist_object_id_map_entry *ent;
1618 7b5b670e 2020-12-25 stsp ent = got_object_idset_get(map->idset, id);
1620 7b5b670e 2020-12-25 stsp return &ent->refs;
1621 7b5b670e 2020-12-25 stsp return NULL;
1624 7b5b670e 2020-12-25 stsp static const struct got_error *
1625 7b5b670e 2020-12-25 stsp free_id_map_entry(struct got_object_id *id, void *data, void *arg)
1627 7b5b670e 2020-12-25 stsp struct got_reflist_object_id_map_entry *ent = data;
1629 7b5b670e 2020-12-25 stsp got_ref_list_free(&ent->refs);
1630 7b5b670e 2020-12-25 stsp free(ent);
1631 7b5b670e 2020-12-25 stsp return NULL;
1635 f193b038 2020-12-26 stsp got_reflist_object_id_map_free(struct got_reflist_object_id_map *map)
1637 7b5b670e 2020-12-25 stsp got_object_idset_for_each(map->idset, free_id_map_entry, NULL);
1638 7b5b670e 2020-12-25 stsp got_object_idset_free(map->idset);
1639 7b5b670e 2020-12-25 stsp free(map);
