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 5261c201 2018-04-01 stsp u_int8_t sha1[SHA1_DIGEST_LENGTH];
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 80d5fc1f 2019-03-15 stsp memcpy((*ref)->ref.ref.sha1, id->sha1, sizeof((*ref)->ref.ref.sha1));
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 2020-01-02 naddy char *line = NULL;
322 9bdd68dd 2020-01-02 naddy size_t linesize = 0;
323 9bdd68dd 2020-01-02 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 2020-01-02 naddy linelen = getline(&line, &linesize, f);
332 9bdd68dd 2020-01-02 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 2020-01-02 naddy if (linelen > 0 && line[linelen - 1] == '\n')
339 9bdd68dd 2020-01-02 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 2020-01-02 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 5261c201 2018-04-01 stsp memcpy(ret->ref.ref.sha1, ref->ref.ref.sha1,
515 80d5fc1f 2019-03-15 stsp sizeof(ret->ref.ref.sha1));
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 80d5fc1f 2019-03-15 stsp memcpy((*id)->sha1, ref->ref.ref.sha1, sizeof((*id)->sha1));
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 271d2a38 2018-12-25 stsp str = malloc(SHA1_DIGEST_STRING_LENGTH);
608 271d2a38 2018-12-25 stsp if (str == NULL)
609 271d2a38 2018-12-25 stsp return NULL;
611 271d2a38 2018-12-25 stsp if (got_sha1_digest_to_str(ref->ref.ref.sha1, str,
612 271d2a38 2018-12-25 stsp SHA1_DIGEST_STRING_LENGTH) == NULL) {
614 271d2a38 2018-12-25 stsp return NULL;
617 5261c201 2018-04-01 stsp return str;
620 0bd18d37 2019-02-01 stsp const char *
621 0bd18d37 2019-02-01 stsp got_ref_get_name(struct got_reference *ref)
623 0bd18d37 2019-02-01 stsp if (ref->flags & GOT_REF_IS_SYMBOLIC)
624 0bd18d37 2019-02-01 stsp return ref->ref.symref.name;
626 0bd18d37 2019-02-01 stsp return ref->ref.ref.name;
629 aaf88317 2019-07-10 stsp const char *
630 aaf88317 2019-07-10 stsp got_ref_get_symref_target(struct got_reference *ref)
632 aaf88317 2019-07-10 stsp if (ref->flags & GOT_REF_IS_SYMBOLIC)
633 aaf88317 2019-07-10 stsp return ref->ref.symref.ref;
635 b8bad2ba 2019-08-23 stsp return NULL;
639 3f338f0a 2021-07-27 stsp got_ref_get_mtime(struct got_reference *ref)
641 3f338f0a 2021-07-27 stsp return ref->mtime;
644 b8bad2ba 2019-08-23 stsp const struct got_error *
645 b8bad2ba 2019-08-23 stsp got_ref_cmp_by_name(void *arg, int *cmp, struct got_reference *re1,
646 b8bad2ba 2019-08-23 stsp struct got_reference* re2)
648 b8bad2ba 2019-08-23 stsp const char *name1 = got_ref_get_name(re1);
649 b8bad2ba 2019-08-23 stsp const char *name2 = got_ref_get_name(re2);
651 b8bad2ba 2019-08-23 stsp *cmp = got_path_cmp(name1, name2, strlen(name1), strlen(name2));
652 aaf88317 2019-07-10 stsp return NULL;
655 d1f16636 2020-01-15 stsp const struct got_error *
656 d1f16636 2020-01-15 stsp got_ref_cmp_tags(void *arg, int *cmp, struct got_reference *ref1,
657 d1f16636 2020-01-15 stsp struct got_reference *ref2)
659 d1f16636 2020-01-15 stsp const struct got_error *err = NULL;
660 d1f16636 2020-01-15 stsp struct got_repository *repo = arg;
661 d1f16636 2020-01-15 stsp struct got_object_id *id1, *id2 = NULL;
662 d1f16636 2020-01-15 stsp struct got_tag_object *tag1 = NULL, *tag2 = NULL;
663 d1f16636 2020-01-15 stsp struct got_commit_object *commit1 = NULL, *commit2 = NULL;
664 d1f16636 2020-01-15 stsp time_t time1, time2;
668 d1f16636 2020-01-15 stsp err = got_ref_resolve(&id1, repo, ref1);
670 d1f16636 2020-01-15 stsp return err;
671 d1f16636 2020-01-15 stsp err = got_object_open_as_tag(&tag1, repo, id1);
673 d1f16636 2020-01-15 stsp if (err->code != GOT_ERR_OBJ_TYPE)
675 d1f16636 2020-01-15 stsp /* "lightweight" tag */
676 d1f16636 2020-01-15 stsp err = got_object_open_as_commit(&commit1, repo, id1);
679 d1f16636 2020-01-15 stsp time1 = got_object_commit_get_committer_time(commit1);
681 d1f16636 2020-01-15 stsp time1 = got_object_tag_get_tagger_time(tag1);
683 d1f16636 2020-01-15 stsp err = got_ref_resolve(&id2, repo, ref2);
686 d1f16636 2020-01-15 stsp err = got_object_open_as_tag(&tag2, repo, id2);
688 d1f16636 2020-01-15 stsp if (err->code != GOT_ERR_OBJ_TYPE)
690 d1f16636 2020-01-15 stsp /* "lightweight" tag */
691 d1f16636 2020-01-15 stsp err = got_object_open_as_commit(&commit2, repo, id2);
694 d1f16636 2020-01-15 stsp time2 = got_object_commit_get_committer_time(commit2);
696 d1f16636 2020-01-15 stsp time2 = got_object_tag_get_tagger_time(tag2);
698 d1f16636 2020-01-15 stsp /* Put latest tags first. */
699 d1f16636 2020-01-15 stsp if (time1 < time2)
701 d1f16636 2020-01-15 stsp else if (time1 > time2)
704 d1f16636 2020-01-15 stsp err = got_ref_cmp_by_name(NULL, cmp, ref2, ref1);
709 d1f16636 2020-01-15 stsp got_object_tag_close(tag1);
711 d1f16636 2020-01-15 stsp got_object_tag_close(tag2);
712 e600f124 2021-03-21 stsp if (commit1)
713 e600f124 2021-03-21 stsp got_object_commit_close(commit1);
714 e600f124 2021-03-21 stsp if (commit2)
715 e600f124 2021-03-21 stsp got_object_commit_close(commit2);
716 7f66531d 2021-11-16 stsp return err;
719 7f66531d 2021-11-16 stsp static const struct got_error *
720 7f66531d 2021-11-16 stsp get_committer_time(struct got_reference *ref, struct got_repository *repo)
722 7f66531d 2021-11-16 stsp const struct got_error *err = NULL;
723 7f66531d 2021-11-16 stsp int obj_type;
724 7f66531d 2021-11-16 stsp struct got_commit_object *commit = NULL;
725 7f66531d 2021-11-16 stsp struct got_tag_object *tag = NULL;
726 7f66531d 2021-11-16 stsp struct got_object_id *id = NULL;
728 7f66531d 2021-11-16 stsp err = got_ref_resolve(&id, repo, ref);
730 7f66531d 2021-11-16 stsp return err;
732 7f66531d 2021-11-16 stsp err = got_object_get_type(&obj_type, repo, id);
736 7f66531d 2021-11-16 stsp switch (obj_type) {
737 7f66531d 2021-11-16 stsp case GOT_OBJ_TYPE_COMMIT:
738 7f66531d 2021-11-16 stsp err = got_object_open_as_commit(&commit, repo, id);
741 7f66531d 2021-11-16 stsp ref->committer_time =
742 7f66531d 2021-11-16 stsp got_object_commit_get_committer_time(commit);
744 7f66531d 2021-11-16 stsp case GOT_OBJ_TYPE_TAG:
745 7f66531d 2021-11-16 stsp err = got_object_open_as_tag(&tag, repo, id);
748 7f66531d 2021-11-16 stsp ref->committer_time = got_object_tag_get_tagger_time(tag);
751 7f66531d 2021-11-16 stsp /* best effort for other object types */
752 7f66531d 2021-11-16 stsp ref->committer_time = got_ref_get_mtime(ref);
757 7f66531d 2021-11-16 stsp if (commit)
758 7f66531d 2021-11-16 stsp got_object_commit_close(commit);
760 7f66531d 2021-11-16 stsp got_object_tag_close(tag);
761 e600f124 2021-03-21 stsp return err;
764 e600f124 2021-03-21 stsp const struct got_error *
765 e600f124 2021-03-21 stsp got_ref_cmp_by_commit_timestamp_descending(void *arg, int *cmp,
766 e600f124 2021-03-21 stsp struct got_reference *ref1, struct got_reference *ref2)
768 0309152a 2021-11-20 stsp const struct got_error *err = NULL;
769 e600f124 2021-03-21 stsp struct got_repository *repo = arg;
773 2c9e323b 2021-10-10 stsp if (ref1->committer_time == 0) {
774 7f66531d 2021-11-16 stsp err = get_committer_time(ref1, repo);
776 2c9e323b 2021-10-10 stsp return err;
778 7f66531d 2021-11-16 stsp if (ref2->committer_time == 0) {
779 7f66531d 2021-11-16 stsp err = get_committer_time(ref2, repo);
781 2c9e323b 2021-10-10 stsp return err;
784 2c9e323b 2021-10-10 stsp if (ref1->committer_time < ref2->committer_time)
786 2c9e323b 2021-10-10 stsp else if (ref2->committer_time < ref1->committer_time)
789 42864987 2021-11-20 stsp return got_ref_cmp_by_name(arg, cmp, ref1, ref2);
791 d1f16636 2020-01-15 stsp return err;
794 779e1159 2021-06-18 stsp const struct got_error *
795 c0df5966 2021-12-31 stsp got_reflist_insert(struct got_reflist_entry **newp,
796 c0df5966 2021-12-31 stsp struct got_reflist_head *refs, struct got_reference *ref,
797 c0df5966 2021-12-31 stsp got_ref_cmp_cb cmp_cb, void *cmp_arg)
799 199a4027 2019-02-02 stsp const struct got_error *err;
800 d9dff0e5 2020-12-26 stsp struct got_reflist_entry *new, *re;
803 505287be 2019-03-15 stsp *newp = NULL;
805 3d8e0c5e 2022-09-05 stsp if (cmp_cb != got_ref_cmp_by_name && (ref->flags & GOT_REF_IS_PACKED)) {
807 7db2b0dd 2022-09-05 stsp * If we are not sorting elements by name then we must still
808 7db2b0dd 2022-09-05 stsp * detect collisions between a packed ref and an on-disk ref
809 7db2b0dd 2022-09-05 stsp * using the same name. On-disk refs take precedence and are
810 7db2b0dd 2022-09-05 stsp * already present on the list before packed refs get added.
812 7db2b0dd 2022-09-05 stsp TAILQ_FOREACH(re, refs, entry) {
813 3d8e0c5e 2022-09-05 stsp err = got_ref_cmp_by_name(NULL, &cmp, re->ref, ref);
815 7db2b0dd 2022-09-05 stsp return err;
816 3d8e0c5e 2022-09-05 stsp if (cmp == 0)
817 7db2b0dd 2022-09-05 stsp return NULL;
821 3d8e0c5e 2022-09-05 stsp new = malloc(sizeof(*new));
822 3d8e0c5e 2022-09-05 stsp if (new == NULL)
823 3d8e0c5e 2022-09-05 stsp return got_error_from_errno("malloc");
824 3d8e0c5e 2022-09-05 stsp new->ref = ref;
825 3d8e0c5e 2022-09-05 stsp *newp = new;
828 29b5c214 2019-02-04 stsp * We must de-duplicate entries on insert because packed-refs may
829 29b5c214 2019-02-04 stsp * contain redundant entries. On-disk refs take precedence.
830 29b5c214 2019-02-04 stsp * This code assumes that on-disk revs are read before packed-refs.
831 e397b6db 2019-02-04 stsp * We're iterating the list anyway, so insert elements sorted by name.
833 d9dff0e5 2020-12-26 stsp * Many callers will provide paths in a somewhat sorted order.
834 d9dff0e5 2020-12-26 stsp * Iterating backwards from the tail of the list should be more
835 d9dff0e5 2020-12-26 stsp * efficient than traversing through the entire list each time
836 d9dff0e5 2020-12-26 stsp * an element is inserted.
838 d9dff0e5 2020-12-26 stsp re = TAILQ_LAST(refs, got_reflist_head);
839 7a3c76f5 2019-02-05 stsp while (re) {
840 b8bad2ba 2019-08-23 stsp err = (*cmp_cb)(cmp_arg, &cmp, re->ref, new->ref);
842 b8bad2ba 2019-08-23 stsp return err;
843 e397b6db 2019-02-04 stsp if (cmp == 0) {
844 27a1ed03 2019-03-15 stsp /* duplicate */
846 505287be 2019-03-15 stsp *newp = NULL;
847 7a3c76f5 2019-02-05 stsp return NULL;
848 d9dff0e5 2020-12-26 stsp } else if (cmp < 0) {
849 d9dff0e5 2020-12-26 stsp TAILQ_INSERT_AFTER(refs, re, new, entry);
850 7a3c76f5 2019-02-05 stsp return NULL;
852 d9dff0e5 2020-12-26 stsp re = TAILQ_PREV(re, got_reflist_head, entry);
855 d9dff0e5 2020-12-26 stsp TAILQ_INSERT_HEAD(refs, new, entry);
856 199a4027 2019-02-02 stsp return NULL;
859 2d497592 2021-11-20 stsp const struct got_error *
860 2d497592 2021-11-20 stsp got_reflist_sort(struct got_reflist_head *refs,
861 2d497592 2021-11-20 stsp got_ref_cmp_cb cmp_cb, void *cmp_arg)
863 2d497592 2021-11-20 stsp const struct got_error *err = NULL;
864 2d497592 2021-11-20 stsp struct got_reflist_entry *re, *tmp, *new;
865 2d497592 2021-11-20 stsp struct got_reflist_head sorted;
867 2d497592 2021-11-20 stsp TAILQ_INIT(&sorted);
869 2d497592 2021-11-20 stsp TAILQ_FOREACH_SAFE(re, refs, entry, tmp) {
870 2d497592 2021-11-20 stsp struct got_reference *ref = re->ref;
871 2d497592 2021-11-20 stsp TAILQ_REMOVE(refs, re, entry);
873 2d497592 2021-11-20 stsp err = got_reflist_insert(&new, &sorted, ref, cmp_cb, cmp_arg);
874 2d497592 2021-11-20 stsp if (err || new == NULL /* duplicate */)
875 2d497592 2021-11-20 stsp got_ref_close(ref);
877 2d497592 2021-11-20 stsp return err;
880 2d497592 2021-11-20 stsp TAILQ_CONCAT(refs, &sorted, entry);
881 2d497592 2021-11-20 stsp return NULL;
884 a04f49d2 2019-02-04 stsp static const struct got_error *
885 29b5c214 2019-02-04 stsp gather_on_disk_refs(struct got_reflist_head *refs, const char *path_refs,
886 b8bad2ba 2019-08-23 stsp const char *subdir, struct got_repository *repo,
887 b8bad2ba 2019-08-23 stsp got_ref_cmp_cb cmp_cb, void *cmp_arg)
889 a04f49d2 2019-02-04 stsp const struct got_error *err = NULL;
890 a04f49d2 2019-02-04 stsp DIR *d = NULL;
891 a04f49d2 2019-02-04 stsp char *path_subdir;
893 b2070a3f 2020-03-22 stsp while (subdir[0] == '/')
896 a04f49d2 2019-02-04 stsp if (asprintf(&path_subdir, "%s/%s", path_refs, subdir) == -1)
897 638f9024 2019-05-13 stsp return got_error_from_errno("asprintf");
899 a04f49d2 2019-02-04 stsp d = opendir(path_subdir);
900 a04f49d2 2019-02-04 stsp if (d == NULL)
904 a04f49d2 2019-02-04 stsp struct dirent *dent;
905 a04f49d2 2019-02-04 stsp struct got_reference *ref;
906 a04f49d2 2019-02-04 stsp char *child;
909 a04f49d2 2019-02-04 stsp dent = readdir(d);
910 a04f49d2 2019-02-04 stsp if (dent == NULL)
913 a04f49d2 2019-02-04 stsp if (strcmp(dent->d_name, ".") == 0 ||
914 a04f49d2 2019-02-04 stsp strcmp(dent->d_name, "..") == 0)
917 20ccae39 2020-07-21 stsp err = got_path_dirent_type(&type, path_subdir, dent);
921 20ccae39 2020-07-21 stsp switch (type) {
922 a04f49d2 2019-02-04 stsp case DT_REG:
923 2f17228e 2019-05-12 stsp err = open_ref(&ref, path_refs, subdir, dent->d_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 2020-01-02 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 29606af7 2019-08-23 stsp err = open_ref(&ref, path_refs, "", GOT_REF_HEAD, 0);
980 72acb3d8 2021-08-06 stsp err = got_reflist_insert(&new, refs, ref, cmp_cb, cmp_arg);
981 29606af7 2019-08-23 stsp if (err || new == NULL /* duplicate */)
982 29606af7 2019-08-23 stsp got_ref_close(ref);
983 f68a7890 2020-03-19 stsp if (err && err->code != GOT_ERR_NOT_REF)
986 b2070a3f 2020-03-22 stsp /* Try listing a single reference. */
987 b2070a3f 2020-03-22 stsp const char *refname = ref_namespace;
988 b2070a3f 2020-03-22 stsp path_refs = get_refs_dir_path(repo, refname);
989 b2070a3f 2020-03-22 stsp if (path_refs == NULL) {
990 b2070a3f 2020-03-22 stsp err = got_error_from_errno("get_refs_dir_path");
993 b2070a3f 2020-03-22 stsp err = open_ref(&ref, path_refs, "", refname, 0);
995 b2070a3f 2020-03-22 stsp if (err->code != GOT_ERR_NOT_REF)
997 b2070a3f 2020-03-22 stsp /* Try to look up references in a given namespace. */
999 72acb3d8 2021-08-06 stsp err = got_reflist_insert(&new, refs, ref,
1000 b2070a3f 2020-03-22 stsp cmp_cb, cmp_arg);
1001 b2070a3f 2020-03-22 stsp if (err || new == NULL /* duplicate */)
1002 b2070a3f 2020-03-22 stsp got_ref_close(ref);
1003 b2070a3f 2020-03-22 stsp return err;
1007 b2070a3f 2020-03-22 stsp if (ref_namespace) {
1008 b2070a3f 2020-03-22 stsp size_t len;
1009 b2070a3f 2020-03-22 stsp /* Canonicalize the path to eliminate double-slashes if any. */
1010 b2070a3f 2020-03-22 stsp if (asprintf(&abs_namespace, "/%s", ref_namespace) == -1) {
1011 b2070a3f 2020-03-22 stsp err = got_error_from_errno("asprintf");
1012 b2070a3f 2020-03-22 stsp goto done;
1014 b2070a3f 2020-03-22 stsp len = strlen(abs_namespace) + 1;
1015 b2070a3f 2020-03-22 stsp buf = malloc(len);
1016 b2070a3f 2020-03-22 stsp if (buf == NULL) {
1017 b2070a3f 2020-03-22 stsp err = got_error_from_errno("malloc");
1018 b2070a3f 2020-03-22 stsp goto done;
1020 b2070a3f 2020-03-22 stsp err = got_canonpath(abs_namespace, buf, len);
1022 b2070a3f 2020-03-22 stsp goto done;
1023 b2070a3f 2020-03-22 stsp ondisk_ref_namespace = buf;
1024 b2070a3f 2020-03-22 stsp while (ondisk_ref_namespace[0] == '/')
1025 b2070a3f 2020-03-22 stsp ondisk_ref_namespace++;
1026 b2070a3f 2020-03-22 stsp if (strncmp(ondisk_ref_namespace, "refs/", 5) == 0)
1027 b2070a3f 2020-03-22 stsp ondisk_ref_namespace += 5;
1028 b2070a3f 2020-03-22 stsp else if (strcmp(ondisk_ref_namespace, "refs") == 0)
1029 b2070a3f 2020-03-22 stsp ondisk_ref_namespace = "";
1032 29b5c214 2019-02-04 stsp /* Gather on-disk refs before parsing packed-refs. */
1033 29b5c214 2019-02-04 stsp free(path_refs);
1034 29b5c214 2019-02-04 stsp path_refs = get_refs_dir_path(repo, "");
1035 29b5c214 2019-02-04 stsp if (path_refs == NULL) {
1036 638f9024 2019-05-13 stsp err = got_error_from_errno("get_refs_dir_path");
1037 29b5c214 2019-02-04 stsp goto done;
1039 29606af7 2019-08-23 stsp err = gather_on_disk_refs(refs, path_refs,
1040 6aeab596 2019-08-28 stsp ondisk_ref_namespace ? ondisk_ref_namespace : "", repo,
1041 6aeab596 2019-08-28 stsp cmp_cb, cmp_arg);
1043 29b5c214 2019-02-04 stsp goto done;
1046 29b5c214 2019-02-04 stsp * The packed-refs file may contain redundant entries, in which
1047 29b5c214 2019-02-04 stsp * case on-disk refs take precedence.
1049 199a4027 2019-02-02 stsp packed_refs_path = got_repo_get_path_packed_refs(repo);
1050 29b5c214 2019-02-04 stsp if (packed_refs_path == NULL) {
1051 638f9024 2019-05-13 stsp err = got_error_from_errno("got_repo_get_path_packed_refs");
1052 29b5c214 2019-02-04 stsp goto done;
1055 00fe21f2 2021-12-31 stsp f = fopen(packed_refs_path, "re");
1057 7a90b680 2020-01-02 naddy size_t linesize = 0;
1058 9bdd68dd 2020-01-02 naddy ssize_t linelen;
1059 3f338f0a 2021-07-27 stsp struct stat sb;
1061 3f338f0a 2021-07-27 stsp if (fstat(fileno(f), &sb) == -1) {
1062 3f338f0a 2021-07-27 stsp err = got_error_from_errno2("fstat", packed_refs_path);
1063 3f338f0a 2021-07-27 stsp goto done;
1066 9bdd68dd 2020-01-02 naddy linelen = getline(&line, &linesize, f);
1067 9bdd68dd 2020-01-02 naddy if (linelen == -1) {
1068 0bb4abae 2019-03-15 stsp if (feof(f))
1070 0bb4abae 2019-03-15 stsp err = got_ferror(f, GOT_ERR_BAD_REF_DATA);
1071 0bb4abae 2019-03-15 stsp goto done;
1073 9bdd68dd 2020-01-02 naddy if (linelen > 0 && line[linelen - 1] == '\n')
1074 9bdd68dd 2020-01-02 naddy line[linelen - 1] = '\0';
1075 3f338f0a 2021-07-27 stsp err = parse_packed_ref_line(&ref, NULL, line,
1076 3f338f0a 2021-07-27 stsp sb.st_mtime);
1078 199a4027 2019-02-02 stsp goto done;
1079 76b4ead2 2019-02-03 stsp if (ref) {
1080 29606af7 2019-08-23 stsp if (ref_namespace) {
1081 29606af7 2019-08-23 stsp const char *name;
1082 29606af7 2019-08-23 stsp name = got_ref_get_name(ref);
1083 b2070a3f 2020-03-22 stsp if (!got_path_is_child(name,
1084 b2070a3f 2020-03-22 stsp ref_namespace,
1085 b2070a3f 2020-03-22 stsp strlen(ref_namespace))) {
1086 29606af7 2019-08-23 stsp got_ref_close(ref);
1090 72acb3d8 2021-08-06 stsp err = got_reflist_insert(&new, refs, ref,
1091 b8bad2ba 2019-08-23 stsp cmp_cb, cmp_arg);
1092 505287be 2019-03-15 stsp if (err || new == NULL /* duplicate */)
1093 505287be 2019-03-15 stsp got_ref_close(ref);
1095 76b4ead2 2019-02-03 stsp goto done;
1100 c3821bef 2022-07-21 florian free(packed_refs_path);
1101 b2070a3f 2020-03-22 stsp free(abs_namespace);
1102 b2070a3f 2020-03-22 stsp free(buf);
1103 9bdd68dd 2020-01-02 naddy free(line);
1104 a04f49d2 2019-02-04 stsp free(path_refs);
1105 56b63ca4 2021-01-22 stsp if (f && fclose(f) == EOF && err == NULL)
1106 638f9024 2019-05-13 stsp err = got_error_from_errno("fclose");
1107 199a4027 2019-02-02 stsp return err;
1111 e2e879a0 2019-03-11 stsp got_ref_list_free(struct got_reflist_head *refs)
1113 e2e879a0 2019-03-11 stsp struct got_reflist_entry *re;
1115 d9dff0e5 2020-12-26 stsp while ((re = TAILQ_FIRST(refs))) {
1116 d9dff0e5 2020-12-26 stsp TAILQ_REMOVE(refs, re, entry);
1117 af8a5c4a 2021-05-21 stsp got_ref_close(re->ref);
1123 b249b824 2019-05-09 stsp got_ref_is_symbolic(struct got_reference *ref)
1125 b249b824 2019-05-09 stsp return (ref->flags & GOT_REF_IS_SYMBOLIC);
1128 b249b824 2019-05-09 stsp const struct got_error *
1129 b249b824 2019-05-09 stsp got_ref_change_ref(struct got_reference *ref, struct got_object_id *id)
1131 b249b824 2019-05-09 stsp if (ref->flags & GOT_REF_IS_SYMBOLIC)
1132 b249b824 2019-05-09 stsp return got_error(GOT_ERR_BAD_REF_TYPE);
1134 b249b824 2019-05-09 stsp memcpy(ref->ref.ref.sha1, id->sha1, sizeof(ref->ref.ref.sha1));
1135 b249b824 2019-05-09 stsp return NULL;
1138 9e672c74 2019-03-11 stsp const struct got_error *
1139 d7b899ab 2020-03-25 stsp got_ref_change_symref(struct got_reference *ref, const char *refname)
1141 b249b824 2019-05-09 stsp char *new_name;
1143 b249b824 2019-05-09 stsp if ((ref->flags & GOT_REF_IS_SYMBOLIC) == 0)
1144 b249b824 2019-05-09 stsp return got_error(GOT_ERR_BAD_REF_TYPE);
1146 b249b824 2019-05-09 stsp new_name = strdup(refname);
1147 b249b824 2019-05-09 stsp if (new_name == NULL)
1148 638f9024 2019-05-13 stsp return got_error_from_errno("strdup");
1150 d7b899ab 2020-03-25 stsp free(ref->ref.symref.ref);
1151 d7b899ab 2020-03-25 stsp ref->ref.symref.ref = new_name;
1152 b249b824 2019-05-09 stsp return NULL;
1155 b249b824 2019-05-09 stsp const struct got_error *
1156 e8a967e0 2020-03-21 stsp got_ref_change_symref_to_ref(struct got_reference *symref,
1157 e8a967e0 2020-03-21 stsp struct got_object_id *id)
1159 e8a967e0 2020-03-21 stsp if ((symref->flags & GOT_REF_IS_SYMBOLIC) == 0)
1160 e8a967e0 2020-03-21 stsp return got_error(GOT_ERR_BAD_REF_TYPE);
1162 e8a967e0 2020-03-21 stsp symref->ref.ref.name = symref->ref.symref.name;
1163 e8a967e0 2020-03-21 stsp memcpy(symref->ref.ref.sha1, id->sha1, SHA1_DIGEST_LENGTH);
1164 e8a967e0 2020-03-21 stsp symref->flags &= ~GOT_REF_IS_SYMBOLIC;
1165 e8a967e0 2020-03-21 stsp return NULL;
1168 e8a967e0 2020-03-21 stsp const struct got_error *
1169 9e672c74 2019-03-11 stsp got_ref_write(struct got_reference *ref, struct got_repository *repo)
1171 9e672c74 2019-03-11 stsp const struct got_error *err = NULL, *unlock_err = NULL;
1172 9e672c74 2019-03-11 stsp const char *name = got_ref_get_name(ref);
1173 9e672c74 2019-03-11 stsp char *path_refs = NULL, *path = NULL, *tmppath = NULL;
1174 9e672c74 2019-03-11 stsp struct got_lockfile *lf = NULL;
1175 9e672c74 2019-03-11 stsp FILE *f = NULL;
1177 9e672c74 2019-03-11 stsp struct stat sb;
1179 9e672c74 2019-03-11 stsp path_refs = get_refs_dir_path(repo, name);
1180 9e672c74 2019-03-11 stsp if (path_refs == NULL) {
1181 638f9024 2019-05-13 stsp err = got_error_from_errno2("get_refs_dir_path", name);
1182 9e672c74 2019-03-11 stsp goto done;
1185 9e672c74 2019-03-11 stsp if (asprintf(&path, "%s/%s", path_refs, name) == -1) {
1186 638f9024 2019-05-13 stsp err = got_error_from_errno("asprintf");
1187 9e672c74 2019-03-11 stsp goto done;
1190 b90054ed 2022-11-01 stsp err = got_opentemp_named(&tmppath, &f, path, "");
1191 49c7094f 2019-03-11 stsp if (err) {
1192 d1667f0d 2019-03-11 stsp char *parent;
1193 49c7094f 2019-03-11 stsp if (!(err->code == GOT_ERR_ERRNO && errno == ENOENT))
1194 5e1c9f23 2019-03-11 stsp goto done;
1195 d1667f0d 2019-03-11 stsp err = got_path_dirname(&parent, path);
1197 0cd1c46a 2019-03-11 stsp goto done;
1198 0cd1c46a 2019-03-11 stsp err = got_path_mkdir(parent);
1199 5e1c9f23 2019-03-11 stsp free(parent);
1201 0cd1c46a 2019-03-11 stsp goto done;
1202 b90054ed 2022-11-01 stsp err = got_opentemp_named(&tmppath, &f, path, "");
1204 0cd1c46a 2019-03-11 stsp goto done;
1207 9e672c74 2019-03-11 stsp if (ref->flags & GOT_REF_IS_SYMBOLIC) {
1208 9e672c74 2019-03-11 stsp n = fprintf(f, "ref: %s\n", ref->ref.symref.ref);
1209 9e672c74 2019-03-11 stsp if (n != strlen(ref->ref.symref.ref) + 6) {
1210 9e672c74 2019-03-11 stsp err = got_ferror(f, GOT_ERR_IO);
1211 9e672c74 2019-03-11 stsp goto done;
1214 9e672c74 2019-03-11 stsp char hex[SHA1_DIGEST_STRING_LENGTH];
1215 9e672c74 2019-03-11 stsp if (got_sha1_digest_to_str(ref->ref.ref.sha1, hex,
1216 9e672c74 2019-03-11 stsp sizeof(hex)) == NULL) {
1217 9e672c74 2019-03-11 stsp err = got_error(GOT_ERR_BAD_REF_DATA);
1218 9e672c74 2019-03-11 stsp goto done;
1220 9e672c74 2019-03-11 stsp n = fprintf(f, "%s\n", hex);
1221 8fa2f096 2019-03-11 stsp if (n != sizeof(hex)) {
1222 9e672c74 2019-03-11 stsp err = got_ferror(f, GOT_ERR_IO);
1223 9e672c74 2019-03-11 stsp goto done;
1227 2f17228e 2019-05-12 stsp if (ref->lf == NULL) {
1228 5345b4c7 2021-07-06 stsp err = got_lockfile_lock(&lf, path, -1);
1230 2f17228e 2019-05-12 stsp goto done;
1233 9e672c74 2019-03-11 stsp /* XXX: check if old content matches our expectations? */
1235 0cd1c46a 2019-03-11 stsp if (stat(path, &sb) != 0) {
1236 0cd1c46a 2019-03-11 stsp if (errno != ENOENT) {
1237 638f9024 2019-05-13 stsp err = got_error_from_errno2("stat", path);
1238 0cd1c46a 2019-03-11 stsp goto done;
1240 0cd1c46a 2019-03-11 stsp sb.st_mode = GOT_DEFAULT_FILE_MODE;
1243 3818e3c4 2020-11-01 naddy if (fchmod(fileno(f), sb.st_mode) != 0) {
1244 3818e3c4 2020-11-01 naddy err = got_error_from_errno2("fchmod", tmppath);
1245 3818e3c4 2020-11-01 naddy goto done;
1248 9e672c74 2019-03-11 stsp if (rename(tmppath, path) != 0) {
1249 638f9024 2019-05-13 stsp err = got_error_from_errno3("rename", tmppath, path);
1250 9e672c74 2019-03-11 stsp goto done;
1252 9e672c74 2019-03-11 stsp free(tmppath);
1253 9e672c74 2019-03-11 stsp tmppath = NULL;
1255 3f338f0a 2021-07-27 stsp if (stat(path, &sb) == -1) {
1256 3f338f0a 2021-07-27 stsp err = got_error_from_errno2("stat", path);
1257 3f338f0a 2021-07-27 stsp goto done;
1259 3f338f0a 2021-07-27 stsp ref->mtime = sb.st_mtime;
1261 2f17228e 2019-05-12 stsp if (ref->lf == NULL && lf)
1262 5345b4c7 2021-07-06 stsp unlock_err = got_lockfile_unlock(lf, -1);
1264 56b63ca4 2021-01-22 stsp if (fclose(f) == EOF && err == NULL)
1265 638f9024 2019-05-13 stsp err = got_error_from_errno("fclose");
1267 9e672c74 2019-03-11 stsp free(path_refs);
1268 9e672c74 2019-03-11 stsp free(path);
1269 9e672c74 2019-03-11 stsp if (tmppath) {
1270 a06ca3f7 2022-10-15 stsp if (unlink(tmppath) == -1 && err == NULL)
1271 638f9024 2019-05-13 stsp err = got_error_from_errno2("unlink", tmppath);
1272 9e672c74 2019-03-11 stsp free(tmppath);
1274 2d2e1378 2019-03-11 stsp return err ? err : unlock_err;
1277 598a8b91 2019-03-15 stsp static const struct got_error *
1278 598a8b91 2019-03-15 stsp delete_packed_ref(struct got_reference *delref, struct got_repository *repo)
1280 598a8b91 2019-03-15 stsp const struct got_error *err = NULL, *unlock_err = NULL;
1281 598a8b91 2019-03-15 stsp struct got_lockfile *lf = NULL;
1282 598a8b91 2019-03-15 stsp FILE *f = NULL, *tmpf = NULL;
1283 9bdd68dd 2020-01-02 naddy char *line = NULL, *packed_refs_path, *tmppath = NULL;
1284 7a90b680 2020-01-02 naddy size_t linesize = 0;
1285 598a8b91 2019-03-15 stsp struct got_reflist_head refs;
1286 598a8b91 2019-03-15 stsp int found_delref = 0;
1288 598a8b91 2019-03-15 stsp /* The packed-refs file does not cotain symbolic references. */
1289 598a8b91 2019-03-15 stsp if (delref->flags & GOT_REF_IS_SYMBOLIC)
1290 598a8b91 2019-03-15 stsp return got_error(GOT_ERR_BAD_REF_DATA);
1292 d9dff0e5 2020-12-26 stsp TAILQ_INIT(&refs);
1294 598a8b91 2019-03-15 stsp packed_refs_path = got_repo_get_path_packed_refs(repo);
1295 598a8b91 2019-03-15 stsp if (packed_refs_path == NULL)
1296 638f9024 2019-05-13 stsp return got_error_from_errno("got_repo_get_path_packed_refs");
1298 b90054ed 2022-11-01 stsp err = got_opentemp_named(&tmppath, &tmpf, packed_refs_path, "");
1300 598a8b91 2019-03-15 stsp goto done;
1302 2f17228e 2019-05-12 stsp if (delref->lf == NULL) {
1303 5345b4c7 2021-07-06 stsp err = got_lockfile_lock(&lf, packed_refs_path, -1);
1305 2f17228e 2019-05-12 stsp goto done;
1308 00fe21f2 2021-12-31 stsp f = fopen(packed_refs_path, "re");
1309 598a8b91 2019-03-15 stsp if (f == NULL) {
1310 638f9024 2019-05-13 stsp err = got_error_from_errno2("fopen", packed_refs_path);
1311 598a8b91 2019-03-15 stsp goto done;
1314 9bdd68dd 2020-01-02 naddy ssize_t linelen;
1315 598a8b91 2019-03-15 stsp struct got_reference *ref;
1316 598a8b91 2019-03-15 stsp struct got_reflist_entry *new;
1318 9bdd68dd 2020-01-02 naddy linelen = getline(&line, &linesize, f);
1319 9bdd68dd 2020-01-02 naddy if (linelen == -1) {
1320 598a8b91 2019-03-15 stsp if (feof(f))
1322 598a8b91 2019-03-15 stsp err = got_ferror(f, GOT_ERR_BAD_REF_DATA);
1323 598a8b91 2019-03-15 stsp goto done;
1325 9bdd68dd 2020-01-02 naddy if (linelen > 0 && line[linelen - 1] == '\n')
1326 9bdd68dd 2020-01-02 naddy line[linelen - 1] = '\0';
1327 3f338f0a 2021-07-27 stsp err = parse_packed_ref_line(&ref, NULL, line, 0);
1329 598a8b91 2019-03-15 stsp goto done;
1330 598a8b91 2019-03-15 stsp if (ref == NULL)
1333 598a8b91 2019-03-15 stsp if (strcmp(ref->ref.ref.name, delref->ref.ref.name) == 0 &&
1334 598a8b91 2019-03-15 stsp memcmp(ref->ref.ref.sha1, delref->ref.ref.sha1,
1335 598a8b91 2019-03-15 stsp sizeof(delref->ref.ref.sha1)) == 0) {
1336 598a8b91 2019-03-15 stsp found_delref = 1;
1337 598a8b91 2019-03-15 stsp got_ref_close(ref);
1341 72acb3d8 2021-08-06 stsp err = got_reflist_insert(&new, &refs, ref,
1342 b8bad2ba 2019-08-23 stsp got_ref_cmp_by_name, NULL);
1343 598a8b91 2019-03-15 stsp if (err || new == NULL /* duplicate */)
1344 598a8b91 2019-03-15 stsp got_ref_close(ref);
1346 598a8b91 2019-03-15 stsp goto done;
1349 598a8b91 2019-03-15 stsp if (found_delref) {
1350 598a8b91 2019-03-15 stsp struct got_reflist_entry *re;
1352 598a8b91 2019-03-15 stsp struct stat sb;
1354 598a8b91 2019-03-15 stsp n = fprintf(tmpf, "%s\n", GOT_PACKED_REFS_HEADER);
1355 598a8b91 2019-03-15 stsp if (n != sizeof(GOT_PACKED_REFS_HEADER)) {
1356 598a8b91 2019-03-15 stsp err = got_ferror(f, GOT_ERR_IO);
1357 598a8b91 2019-03-15 stsp goto done;
1360 d9dff0e5 2020-12-26 stsp TAILQ_FOREACH(re, &refs, entry) {
1361 9dd14b99 2021-09-28 naddy char hex[SHA1_DIGEST_STRING_LENGTH];
1363 598a8b91 2019-03-15 stsp if (got_sha1_digest_to_str(re->ref->ref.ref.sha1, hex,
1364 598a8b91 2019-03-15 stsp sizeof(hex)) == NULL) {
1365 598a8b91 2019-03-15 stsp err = got_error(GOT_ERR_BAD_REF_DATA);
1366 598a8b91 2019-03-15 stsp goto done;
1368 598a8b91 2019-03-15 stsp n = fprintf(tmpf, "%s ", hex);
1369 598a8b91 2019-03-15 stsp if (n != sizeof(hex)) {
1370 598a8b91 2019-03-15 stsp err = got_ferror(f, GOT_ERR_IO);
1371 598a8b91 2019-03-15 stsp goto done;
1373 598a8b91 2019-03-15 stsp n = fprintf(tmpf, "%s\n", re->ref->ref.ref.name);
1374 598a8b91 2019-03-15 stsp if (n != strlen(re->ref->ref.ref.name) + 1) {
1375 598a8b91 2019-03-15 stsp err = got_ferror(f, GOT_ERR_IO);
1376 598a8b91 2019-03-15 stsp goto done;
1380 598a8b91 2019-03-15 stsp if (fflush(tmpf) != 0) {
1381 638f9024 2019-05-13 stsp err = got_error_from_errno("fflush");
1382 598a8b91 2019-03-15 stsp goto done;
1385 3818e3c4 2020-11-01 naddy if (fstat(fileno(f), &sb) != 0) {
1386 598a8b91 2019-03-15 stsp if (errno != ENOENT) {
1387 3818e3c4 2020-11-01 naddy err = got_error_from_errno2("fstat",
1388 230a42bd 2019-05-11 jcs packed_refs_path);
1389 598a8b91 2019-03-15 stsp goto done;
1391 598a8b91 2019-03-15 stsp sb.st_mode = GOT_DEFAULT_FILE_MODE;
1394 3818e3c4 2020-11-01 naddy if (fchmod(fileno(tmpf), sb.st_mode) != 0) {
1395 3818e3c4 2020-11-01 naddy err = got_error_from_errno2("fchmod", tmppath);
1396 598a8b91 2019-03-15 stsp goto done;
1399 3818e3c4 2020-11-01 naddy if (rename(tmppath, packed_refs_path) != 0) {
1400 3818e3c4 2020-11-01 naddy err = got_error_from_errno3("rename", tmppath,
1401 230a42bd 2019-05-11 jcs packed_refs_path);
1402 598a8b91 2019-03-15 stsp goto done;
1404 15c388a9 2022-10-15 stsp free(tmppath);
1405 15c388a9 2022-10-15 stsp tmppath = NULL;
1408 2f17228e 2019-05-12 stsp if (delref->lf == NULL && lf)
1409 5345b4c7 2021-07-06 stsp unlock_err = got_lockfile_unlock(lf, -1);
1411 56b63ca4 2021-01-22 stsp if (fclose(f) == EOF && err == NULL)
1412 638f9024 2019-05-13 stsp err = got_error_from_errno("fclose");
1414 15c388a9 2022-10-15 stsp if (tmppath && unlink(tmppath) == -1 && err == NULL)
1415 15c388a9 2022-10-15 stsp err = got_error_from_errno2("unlink", tmppath);
1416 15c388a9 2022-10-15 stsp if (tmpf && fclose(tmpf) == EOF && err == NULL)
1417 15c388a9 2022-10-15 stsp err = got_error_from_errno("fclose");
1418 598a8b91 2019-03-15 stsp free(tmppath);
1419 598a8b91 2019-03-15 stsp free(packed_refs_path);
1420 9bdd68dd 2020-01-02 naddy free(line);
1421 598a8b91 2019-03-15 stsp got_ref_list_free(&refs);
1422 598a8b91 2019-03-15 stsp return err ? err : unlock_err;
1425 2a104ff6 2020-09-21 stsp static const struct got_error *
1426 2a104ff6 2020-09-21 stsp delete_loose_ref(struct got_reference *ref, struct got_repository *repo)
1428 2d2e1378 2019-03-11 stsp const struct got_error *err = NULL, *unlock_err = NULL;
1429 2d2e1378 2019-03-11 stsp const char *name = got_ref_get_name(ref);
1430 2d2e1378 2019-03-11 stsp char *path_refs = NULL, *path = NULL;
1431 2d2e1378 2019-03-11 stsp struct got_lockfile *lf = NULL;
1433 2d2e1378 2019-03-11 stsp path_refs = get_refs_dir_path(repo, name);
1434 2d2e1378 2019-03-11 stsp if (path_refs == NULL) {
1435 638f9024 2019-05-13 stsp err = got_error_from_errno2("get_refs_dir_path", name);
1436 2d2e1378 2019-03-11 stsp goto done;
1439 2d2e1378 2019-03-11 stsp if (asprintf(&path, "%s/%s", path_refs, name) == -1) {
1440 638f9024 2019-05-13 stsp err = got_error_from_errno("asprintf");
1441 2d2e1378 2019-03-11 stsp goto done;
1444 2f17228e 2019-05-12 stsp if (ref->lf == NULL) {
1445 5345b4c7 2021-07-06 stsp err = got_lockfile_lock(&lf, path, -1);
1447 2f17228e 2019-05-12 stsp goto done;
1450 2d2e1378 2019-03-11 stsp /* XXX: check if old content matches our expectations? */
1452 a06ca3f7 2022-10-15 stsp if (unlink(path) == -1)
1453 638f9024 2019-05-13 stsp err = got_error_from_errno2("unlink", path);
1455 2f17228e 2019-05-12 stsp if (ref->lf == NULL && lf)
1456 5345b4c7 2021-07-06 stsp unlock_err = got_lockfile_unlock(lf, -1);
1458 2d2e1378 2019-03-11 stsp free(path_refs);
1459 2d2e1378 2019-03-11 stsp free(path);
1460 9e672c74 2019-03-11 stsp return err ? err : unlock_err;
1463 2a104ff6 2020-09-21 stsp const struct got_error *
1464 2a104ff6 2020-09-21 stsp got_ref_delete(struct got_reference *ref, struct got_repository *repo)
1466 2a104ff6 2020-09-21 stsp const struct got_error *err = NULL;
1467 2a104ff6 2020-09-21 stsp struct got_reference *ref2;
1469 2a104ff6 2020-09-21 stsp if (ref->flags & GOT_REF_IS_PACKED) {
1470 2a104ff6 2020-09-21 stsp err = delete_packed_ref(ref, repo);
1472 2a104ff6 2020-09-21 stsp return err;
1474 a1c4175c 2020-09-22 stsp err = got_ref_open(&ref2, repo, got_ref_get_name(ref), 0);
1475 2a104ff6 2020-09-21 stsp if (err) {
1476 2a104ff6 2020-09-21 stsp if (err->code == GOT_ERR_NOT_REF)
1477 2a104ff6 2020-09-21 stsp return NULL;
1478 2a104ff6 2020-09-21 stsp return err;
1481 2a104ff6 2020-09-21 stsp err = delete_loose_ref(ref2, repo);
1482 2a104ff6 2020-09-21 stsp got_ref_close(ref2);
1483 2a104ff6 2020-09-21 stsp return err;
1485 2a104ff6 2020-09-21 stsp err = delete_loose_ref(ref, repo);
1487 2a104ff6 2020-09-21 stsp return err;
1489 a1c4175c 2020-09-22 stsp err = got_ref_open(&ref2, repo, got_ref_get_name(ref), 0);
1490 2a104ff6 2020-09-21 stsp if (err) {
1491 2a104ff6 2020-09-21 stsp if (err->code == GOT_ERR_NOT_REF)
1492 2a104ff6 2020-09-21 stsp return NULL;
1493 2a104ff6 2020-09-21 stsp return err;
1496 2a104ff6 2020-09-21 stsp err = delete_packed_ref(ref2, repo);
1497 2a104ff6 2020-09-21 stsp got_ref_close(ref2);
1498 2a104ff6 2020-09-21 stsp return err;
1502 2f17228e 2019-05-12 stsp const struct got_error *
1503 2f17228e 2019-05-12 stsp got_ref_unlock(struct got_reference *ref)
1505 2f17228e 2019-05-12 stsp const struct got_error *err;
1506 5345b4c7 2021-07-06 stsp err = got_lockfile_unlock(ref->lf, -1);
1507 2f17228e 2019-05-12 stsp ref->lf = NULL;
1508 2f17228e 2019-05-12 stsp return err;
1511 7b5b670e 2020-12-25 stsp struct got_reflist_object_id_map {
1512 7b5b670e 2020-12-25 stsp struct got_object_idset *idset;
1515 7b5b670e 2020-12-25 stsp struct got_reflist_object_id_map_entry {
1516 7b5b670e 2020-12-25 stsp struct got_reflist_head refs;
1519 24202e46 2020-12-26 stsp static const struct got_error *
1520 24202e46 2020-12-26 stsp add_object_id_map_entry(struct got_object_idset *idset,
1521 24202e46 2020-12-26 stsp struct got_object_id *id, struct got_reflist_entry *re)
1523 24202e46 2020-12-26 stsp const struct got_error *err = NULL;
1524 24202e46 2020-12-26 stsp struct got_reflist_object_id_map_entry *ent;
1525 24202e46 2020-12-26 stsp struct got_reflist_entry *new;
1527 24202e46 2020-12-26 stsp ent = got_object_idset_get(idset, id);
1528 24202e46 2020-12-26 stsp if (ent == NULL) {
1529 24202e46 2020-12-26 stsp ent = malloc(sizeof(*ent));
1530 24202e46 2020-12-26 stsp if (ent == NULL)
1531 24202e46 2020-12-26 stsp return got_error_from_errno("malloc");
1533 24202e46 2020-12-26 stsp TAILQ_INIT(&ent->refs);
1534 24202e46 2020-12-26 stsp err = got_object_idset_add(idset, id, ent);
1537 24202e46 2020-12-26 stsp return err;
1541 24202e46 2020-12-26 stsp err = got_reflist_entry_dup(&new, re);
1543 24202e46 2020-12-26 stsp return err;
1545 24202e46 2020-12-26 stsp TAILQ_INSERT_TAIL(&ent->refs, new, entry);
1546 24202e46 2020-12-26 stsp return NULL;
1549 7b5b670e 2020-12-25 stsp const struct got_error *
1550 7b5b670e 2020-12-25 stsp got_reflist_object_id_map_create(struct got_reflist_object_id_map **map,
1551 7b5b670e 2020-12-25 stsp struct got_reflist_head *refs, struct got_repository *repo)
1553 7b5b670e 2020-12-25 stsp const struct got_error *err = NULL;
1554 7b5b670e 2020-12-25 stsp struct got_object_idset *idset;
1555 7b5b670e 2020-12-25 stsp struct got_object_id *id = NULL;
1556 7b5b670e 2020-12-25 stsp struct got_reflist_entry *re;
1558 7b5b670e 2020-12-25 stsp idset = got_object_idset_alloc();
1559 7b5b670e 2020-12-25 stsp if (idset == NULL)
1560 7b5b670e 2020-12-25 stsp return got_error_from_errno("got_object_idset_alloc");
1562 7b5b670e 2020-12-25 stsp *map = malloc(sizeof(**map));
1563 7b5b670e 2020-12-25 stsp if (*map == NULL) {
1564 7b5b670e 2020-12-25 stsp got_object_idset_free(idset);
1565 7b5b670e 2020-12-25 stsp return got_error_from_errno("malloc");
1567 7b5b670e 2020-12-25 stsp (*map)->idset = idset;
1569 d9dff0e5 2020-12-26 stsp TAILQ_FOREACH(re, refs, entry) {
1570 24202e46 2020-12-26 stsp struct got_tag_object *tag = NULL;
1572 7b5b670e 2020-12-25 stsp err = got_ref_resolve(&id, repo, re->ref);
1574 7b5b670e 2020-12-25 stsp goto done;
1576 24202e46 2020-12-26 stsp err = add_object_id_map_entry(idset, id, re);
1578 24202e46 2020-12-26 stsp goto done;
1580 24202e46 2020-12-26 stsp if (strstr(got_ref_get_name(re->ref), "/tags/") == NULL) {
1582 24202e46 2020-12-26 stsp id = NULL;
1586 24202e46 2020-12-26 stsp err = got_object_open_as_tag(&tag, repo, id);
1587 24202e46 2020-12-26 stsp if (err) {
1588 24202e46 2020-12-26 stsp if (err->code != GOT_ERR_OBJ_TYPE)
1589 7b5b670e 2020-12-25 stsp goto done;
1590 24202e46 2020-12-26 stsp /* Ref points at something other than a tag. */
1591 24202e46 2020-12-26 stsp err = NULL;
1592 24202e46 2020-12-26 stsp tag = NULL;
1594 24202e46 2020-12-26 stsp id = NULL;
1598 24202e46 2020-12-26 stsp err = add_object_id_map_entry(idset,
1599 24202e46 2020-12-26 stsp got_object_tag_get_object_id(tag), re);
1600 f0ff8d4c 2020-12-26 stsp got_object_tag_close(tag);
1602 7b5b670e 2020-12-25 stsp goto done;
1605 7b5b670e 2020-12-25 stsp id = NULL;
1609 7b5b670e 2020-12-25 stsp if (err) {
1610 f193b038 2020-12-26 stsp got_reflist_object_id_map_free(*map);
1611 7b5b670e 2020-12-25 stsp *map = NULL;
1613 a53af95f 2020-12-26 stsp return err;
1616 7b5b670e 2020-12-25 stsp struct got_reflist_head *
1617 7b5b670e 2020-12-25 stsp got_reflist_object_id_map_lookup(struct got_reflist_object_id_map *map,
1618 7b5b670e 2020-12-25 stsp struct got_object_id *id)
1620 7b5b670e 2020-12-25 stsp struct got_reflist_object_id_map_entry *ent;
1621 7b5b670e 2020-12-25 stsp ent = got_object_idset_get(map->idset, id);
1623 7b5b670e 2020-12-25 stsp return &ent->refs;
1624 7b5b670e 2020-12-25 stsp return NULL;
1627 7b5b670e 2020-12-25 stsp static const struct got_error *
1628 7b5b670e 2020-12-25 stsp free_id_map_entry(struct got_object_id *id, void *data, void *arg)
1630 7b5b670e 2020-12-25 stsp struct got_reflist_object_id_map_entry *ent = data;
1632 7b5b670e 2020-12-25 stsp got_ref_list_free(&ent->refs);
1633 7b5b670e 2020-12-25 stsp free(ent);
1634 7b5b670e 2020-12-25 stsp return NULL;
1638 f193b038 2020-12-26 stsp got_reflist_object_id_map_free(struct got_reflist_object_id_map *map)
1640 7b5b670e 2020-12-25 stsp got_object_idset_for_each(map->idset, free_id_map_entry, NULL);
1641 7b5b670e 2020-12-25 stsp got_object_idset_free(map->idset);
1642 7b5b670e 2020-12-25 stsp free(map);