2 86c3caaf 2018-03-09 stsp * Copyright (c) 2018 Stefan Sperling <stsp@openbsd.org>
4 86c3caaf 2018-03-09 stsp * Permission to use, copy, modify, and distribute this software for any
5 86c3caaf 2018-03-09 stsp * purpose with or without fee is hereby granted, provided that the above
6 86c3caaf 2018-03-09 stsp * copyright notice and this permission notice appear in all copies.
8 86c3caaf 2018-03-09 stsp * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 86c3caaf 2018-03-09 stsp * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 86c3caaf 2018-03-09 stsp * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 86c3caaf 2018-03-09 stsp * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 86c3caaf 2018-03-09 stsp * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 86c3caaf 2018-03-09 stsp * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 86c3caaf 2018-03-09 stsp * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 86c3caaf 2018-03-09 stsp #include <sys/stat.h>
18 6d9d28c3 2018-03-11 stsp #include <sys/limits.h>
19 9d31a1d8 2018-03-11 stsp #include <sys/queue.h>
21 86c3caaf 2018-03-09 stsp #include <string.h>
22 86c3caaf 2018-03-09 stsp #include <stdio.h>
23 86c3caaf 2018-03-09 stsp #include <stdlib.h>
24 86c3caaf 2018-03-09 stsp #include <fcntl.h>
25 86c3caaf 2018-03-09 stsp #include <errno.h>
26 86c3caaf 2018-03-09 stsp #include <unistd.h>
27 9d31a1d8 2018-03-11 stsp #include <sha1.h>
28 9d31a1d8 2018-03-11 stsp #include <zlib.h>
29 9d31a1d8 2018-03-11 stsp #include <fnmatch.h>
31 86c3caaf 2018-03-09 stsp #include "got_error.h"
32 86c3caaf 2018-03-09 stsp #include "got_repository.h"
33 5261c201 2018-04-01 stsp #include "got_reference.h"
34 9d31a1d8 2018-03-11 stsp #include "got_object.h"
35 86c3caaf 2018-03-09 stsp #include "got_worktree.h"
36 511a516b 2018-05-19 stsp #include "got_opentemp.h"
38 718b3ab0 2018-03-17 stsp #include "got_lib_worktree.h"
39 718b3ab0 2018-03-17 stsp #include "got_lib_path.h"
40 718b3ab0 2018-03-17 stsp #include "got_lib_sha1.h"
41 718b3ab0 2018-03-17 stsp #include "got_lib_fileindex.h"
42 63581804 2018-07-09 stsp #include "got_lib_inflate.h"
43 718b3ab0 2018-03-17 stsp #include "got_lib_delta.h"
44 718b3ab0 2018-03-17 stsp #include "got_lib_object.h"
47 9d31a1d8 2018-03-11 stsp #define MIN(_a,_b) ((_a) < (_b) ? (_a) : (_b))
50 99724ed4 2018-03-10 stsp static const struct got_error *
51 7ac97322 2018-03-11 stsp create_meta_file(const char *path_got, const char *name, const char *content)
53 99724ed4 2018-03-10 stsp const struct got_error *err = NULL;
55 99724ed4 2018-03-10 stsp int fd = -1;
57 7ac97322 2018-03-11 stsp if (asprintf(&path, "%s/%s", path_got, name) == -1) {
58 0a585a0d 2018-03-17 stsp err = got_error_from_errno();
59 99724ed4 2018-03-10 stsp path = NULL;
63 73a5ef67 2018-03-11 stsp fd = open(path, O_RDWR | O_CREAT | O_EXCL | O_NOFOLLOW,
64 99724ed4 2018-03-10 stsp GOT_DEFAULT_FILE_MODE);
65 99724ed4 2018-03-10 stsp if (fd == -1) {
66 99724ed4 2018-03-10 stsp err = got_error_from_errno();
70 99724ed4 2018-03-10 stsp if (content) {
71 99724ed4 2018-03-10 stsp int len = dprintf(fd, "%s\n", content);
72 99724ed4 2018-03-10 stsp if (len != strlen(content) + 1) {
73 99724ed4 2018-03-10 stsp err = got_error_from_errno();
79 99724ed4 2018-03-10 stsp if (fd != -1 && close(fd) == -1 && err == NULL)
80 99724ed4 2018-03-10 stsp err = got_error_from_errno();
85 09fe317a 2018-03-11 stsp static const struct got_error *
86 7ac97322 2018-03-11 stsp read_meta_file(char **content, const char *path_got, const char *name)
88 09fe317a 2018-03-11 stsp const struct got_error *err = NULL;
90 09fe317a 2018-03-11 stsp int fd = -1;
92 09fe317a 2018-03-11 stsp struct stat sb;
94 09fe317a 2018-03-11 stsp *content = NULL;
96 7ac97322 2018-03-11 stsp if (asprintf(&path, "%s/%s", path_got, name) == -1) {
97 0a585a0d 2018-03-17 stsp err = got_error_from_errno();
98 09fe317a 2018-03-11 stsp path = NULL;
102 ef99fdb1 2018-03-11 stsp fd = open(path, O_RDONLY | O_NOFOLLOW);
103 09fe317a 2018-03-11 stsp if (fd == -1) {
104 ef99fdb1 2018-03-11 stsp err = got_error_from_errno();
107 ef99fdb1 2018-03-11 stsp if (flock(fd, LOCK_SH | LOCK_NB) == -1) {
108 73a5ef67 2018-03-11 stsp err = (errno == EWOULDBLOCK ? got_error(GOT_ERR_WORKTREE_BUSY)
109 73a5ef67 2018-03-11 stsp : got_error_from_errno());
113 09fe317a 2018-03-11 stsp stat(path, &sb);
114 09fe317a 2018-03-11 stsp *content = calloc(1, sb.st_size);
115 09fe317a 2018-03-11 stsp if (*content == NULL) {
116 0a585a0d 2018-03-17 stsp err = got_error_from_errno();
120 09fe317a 2018-03-11 stsp n = read(fd, *content, sb.st_size);
121 09fe317a 2018-03-11 stsp if (n != sb.st_size) {
122 0605801d 2018-03-11 stsp err = (n == -1 ? got_error_from_errno() :
123 0605801d 2018-03-11 stsp got_error(GOT_ERR_WORKTREE_META));
126 09fe317a 2018-03-11 stsp if ((*content)[sb.st_size - 1] != '\n') {
127 09fe317a 2018-03-11 stsp err = got_error(GOT_ERR_WORKTREE_META);
130 09fe317a 2018-03-11 stsp (*content)[sb.st_size - 1] = '\0';
133 09fe317a 2018-03-11 stsp if (fd != -1 && close(fd) == -1 && err == NULL)
134 09fe317a 2018-03-11 stsp err = got_error_from_errno();
135 09fe317a 2018-03-11 stsp free(path);
137 09fe317a 2018-03-11 stsp free(*content);
138 09fe317a 2018-03-11 stsp *content = NULL;
140 09fe317a 2018-03-11 stsp return err;
143 86c3caaf 2018-03-09 stsp const struct got_error *
144 86c3caaf 2018-03-09 stsp got_worktree_init(const char *path, struct got_reference *head_ref,
145 577ec78f 2018-03-11 stsp const char *prefix, struct got_repository *repo)
147 86c3caaf 2018-03-09 stsp const struct got_error *err = NULL;
148 65596e15 2018-12-24 stsp struct got_object_id *commit_id = NULL;
149 65596e15 2018-12-24 stsp int obj_type;
150 7ac97322 2018-03-11 stsp char *path_got = NULL;
151 08d425ea 2018-12-24 stsp char *refstr = NULL;
152 cde76477 2018-03-11 stsp char *repo_path = NULL;
153 1451e70d 2018-03-10 stsp char *formatstr = NULL;
154 0bb8a95e 2018-03-12 stsp char *absprefix = NULL;
155 65596e15 2018-12-24 stsp char *basestr = NULL;
157 65596e15 2018-12-24 stsp err = got_ref_resolve(&commit_id, repo, head_ref);
159 65596e15 2018-12-24 stsp return err;
160 65596e15 2018-12-24 stsp err = got_object_get_type(&obj_type, repo, commit_id);
162 65596e15 2018-12-24 stsp return err;
163 65596e15 2018-12-24 stsp if (obj_type != GOT_OBJ_TYPE_COMMIT)
164 65596e15 2018-12-24 stsp return got_error(GOT_ERR_OBJ_TYPE);
166 0bb8a95e 2018-03-12 stsp if (!got_path_is_absolute(prefix)) {
167 0bb8a95e 2018-03-12 stsp if (asprintf(&absprefix, "/%s", prefix) == -1)
168 0a585a0d 2018-03-17 stsp return got_error_from_errno();
171 86c3caaf 2018-03-09 stsp /* Create top-level directory (may already exist). */
172 2cb4bacb 2018-03-11 stsp if (mkdir(path, GOT_DEFAULT_DIR_MODE) == -1 && errno != EEXIST) {
173 86c3caaf 2018-03-09 stsp err = got_error_from_errno();
177 86c3caaf 2018-03-09 stsp /* Create .got directory (may already exist). */
178 7ac97322 2018-03-11 stsp if (asprintf(&path_got, "%s/%s", path, GOT_WORKTREE_GOT_DIR) == -1) {
179 0a585a0d 2018-03-17 stsp err = got_error_from_errno();
182 7ac97322 2018-03-11 stsp if (mkdir(path_got, GOT_DEFAULT_DIR_MODE) == -1 && errno != EEXIST) {
183 86c3caaf 2018-03-09 stsp err = got_error_from_errno();
187 056e7441 2018-03-11 stsp /* Create an empty lock file. */
188 7ac97322 2018-03-11 stsp err = create_meta_file(path_got, GOT_WORKTREE_LOCK, NULL);
192 86c3caaf 2018-03-09 stsp /* Create an empty file index. */
193 7ac97322 2018-03-11 stsp err = create_meta_file(path_got, GOT_WORKTREE_FILE_INDEX, NULL);
197 08d425ea 2018-12-24 stsp /* Write the HEAD reference. */
198 08d425ea 2018-12-24 stsp refstr = got_ref_to_str(head_ref);
199 08d425ea 2018-12-24 stsp if (refstr == NULL) {
200 a1a7858a 2018-12-24 stsp err = got_error_from_errno();
203 0f92850e 2018-12-25 stsp err = create_meta_file(path_got, GOT_WORKTREE_HEAD_REF, refstr);
207 65596e15 2018-12-24 stsp /* Record our base commit. */
208 65596e15 2018-12-24 stsp err = got_object_id_str(&basestr, commit_id);
211 0f92850e 2018-12-25 stsp err = create_meta_file(path_got, GOT_WORKTREE_BASE_COMMIT, basestr);
215 1451e70d 2018-03-10 stsp /* Store path to repository. */
216 cde76477 2018-03-11 stsp repo_path = got_repo_get_path(repo);
217 cde76477 2018-03-11 stsp if (repo_path == NULL) {
218 0a585a0d 2018-03-17 stsp err = got_error_from_errno();
221 cde76477 2018-03-11 stsp err = create_meta_file(path_got, GOT_WORKTREE_REPOSITORY, repo_path);
225 577ec78f 2018-03-11 stsp /* Store in-repository path prefix. */
226 0bb8a95e 2018-03-12 stsp err = create_meta_file(path_got, GOT_WORKTREE_PATH_PREFIX,
227 0bb8a95e 2018-03-12 stsp absprefix ? absprefix : prefix);
231 9dce68ed 2018-03-10 stsp /* Stamp work tree with format file. */
232 1451e70d 2018-03-10 stsp if (asprintf(&formatstr, "%d", GOT_WORKTREE_FORMAT_VERSION) == -1) {
233 0a585a0d 2018-03-17 stsp err = got_error_from_errno();
236 7ac97322 2018-03-11 stsp err = create_meta_file(path_got, GOT_WORKTREE_FORMAT, formatstr);
241 65596e15 2018-12-24 stsp free(commit_id);
242 7ac97322 2018-03-11 stsp free(path_got);
243 1451e70d 2018-03-10 stsp free(formatstr);
244 08d425ea 2018-12-24 stsp free(refstr);
245 cde76477 2018-03-11 stsp free(repo_path);
246 0bb8a95e 2018-03-12 stsp free(absprefix);
247 65596e15 2018-12-24 stsp free(basestr);
248 86c3caaf 2018-03-09 stsp return err;
251 86c3caaf 2018-03-09 stsp const struct got_error *
252 86c3caaf 2018-03-09 stsp got_worktree_open(struct got_worktree **worktree, const char *path)
254 6d9d28c3 2018-03-11 stsp const struct got_error *err = NULL;
255 7ac97322 2018-03-11 stsp char *path_got;
256 6d9d28c3 2018-03-11 stsp char *formatstr = NULL;
257 056e7441 2018-03-11 stsp char *path_lock = NULL;
258 eaccb85f 2018-12-25 stsp char *base_commit_id_str = NULL;
259 271d2a38 2018-12-25 stsp char *head_ref_str = NULL;
260 6d9d28c3 2018-03-11 stsp int version, fd = -1;
261 6d9d28c3 2018-03-11 stsp const char *errstr;
262 eaccb85f 2018-12-25 stsp struct got_repository *repo = NULL;
264 6d9d28c3 2018-03-11 stsp *worktree = NULL;
266 7ac97322 2018-03-11 stsp if (asprintf(&path_got, "%s/%s", path, GOT_WORKTREE_GOT_DIR) == -1) {
267 0a585a0d 2018-03-17 stsp err = got_error_from_errno();
268 7ac97322 2018-03-11 stsp path_got = NULL;
272 7ac97322 2018-03-11 stsp if (asprintf(&path_lock, "%s/%s", path_got, GOT_WORKTREE_LOCK) == -1) {
273 0a585a0d 2018-03-17 stsp err = got_error_from_errno();
274 056e7441 2018-03-11 stsp path_lock = NULL;
278 056e7441 2018-03-11 stsp fd = open(path_lock, O_RDWR | O_EXLOCK | O_NONBLOCK);
279 6d9d28c3 2018-03-11 stsp if (fd == -1) {
280 73a5ef67 2018-03-11 stsp err = (errno == EWOULDBLOCK ? got_error(GOT_ERR_WORKTREE_BUSY)
281 73a5ef67 2018-03-11 stsp : got_error_from_errno());
285 7ac97322 2018-03-11 stsp err = read_meta_file(&formatstr, path_got, GOT_WORKTREE_FORMAT);
289 6d9d28c3 2018-03-11 stsp version = strtonum(formatstr, 1, INT_MAX, &errstr);
290 6d9d28c3 2018-03-11 stsp if (errstr) {
291 6d9d28c3 2018-03-11 stsp err = got_error(GOT_ERR_WORKTREE_META);
294 6d9d28c3 2018-03-11 stsp if (version != GOT_WORKTREE_FORMAT_VERSION) {
295 6d9d28c3 2018-03-11 stsp err = got_error(GOT_ERR_WORKTREE_VERS);
299 6d9d28c3 2018-03-11 stsp *worktree = calloc(1, sizeof(**worktree));
300 6d9d28c3 2018-03-11 stsp if (*worktree == NULL) {
301 0a585a0d 2018-03-17 stsp err = got_error_from_errno();
304 056e7441 2018-03-11 stsp (*worktree)->lockfd = -1;
306 c88eb298 2018-03-11 stsp (*worktree)->root_path = strdup(path);
307 c88eb298 2018-03-11 stsp if ((*worktree)->root_path == NULL) {
308 0a585a0d 2018-03-17 stsp err = got_error_from_errno();
311 cde76477 2018-03-11 stsp err = read_meta_file(&(*worktree)->repo_path, path_got,
312 6d9d28c3 2018-03-11 stsp GOT_WORKTREE_REPOSITORY);
316 7ac97322 2018-03-11 stsp err = read_meta_file(&(*worktree)->path_prefix, path_got,
317 6d9d28c3 2018-03-11 stsp GOT_WORKTREE_PATH_PREFIX);
321 eaccb85f 2018-12-25 stsp err = read_meta_file(&base_commit_id_str, path_got,
322 0f92850e 2018-12-25 stsp GOT_WORKTREE_BASE_COMMIT);
326 eaccb85f 2018-12-25 stsp err = got_repo_open(&repo, (*worktree)->repo_path);
330 eaccb85f 2018-12-25 stsp err = got_object_resolve_id_str(&(*worktree)->base_commit_id, repo,
331 eaccb85f 2018-12-25 stsp base_commit_id_str);
335 271d2a38 2018-12-25 stsp err = read_meta_file(&head_ref_str, path_got, GOT_WORKTREE_HEAD_REF);
339 271d2a38 2018-12-25 stsp err = got_ref_open(&(*worktree)->head_ref, repo, head_ref_str);
342 eaccb85f 2018-12-25 stsp got_repo_close(repo);
343 7ac97322 2018-03-11 stsp free(path_got);
344 056e7441 2018-03-11 stsp free(path_lock);
345 271d2a38 2018-12-25 stsp free(head_ref_str);
346 eaccb85f 2018-12-25 stsp free(base_commit_id_str);
348 6d9d28c3 2018-03-11 stsp if (fd != -1)
350 6d9d28c3 2018-03-11 stsp if (*worktree != NULL)
351 6d9d28c3 2018-03-11 stsp got_worktree_close(*worktree);
352 6d9d28c3 2018-03-11 stsp *worktree = NULL;
354 056e7441 2018-03-11 stsp (*worktree)->lockfd = fd;
356 6d9d28c3 2018-03-11 stsp return err;
360 86c3caaf 2018-03-09 stsp got_worktree_close(struct got_worktree *worktree)
362 c88eb298 2018-03-11 stsp free(worktree->root_path);
363 cde76477 2018-03-11 stsp free(worktree->repo_path);
364 6d9d28c3 2018-03-11 stsp free(worktree->path_prefix);
365 eaccb85f 2018-12-25 stsp free(worktree->base_commit_id);
366 271d2a38 2018-12-25 stsp if (worktree->head_ref)
367 271d2a38 2018-12-25 stsp got_ref_close(worktree->head_ref);
368 056e7441 2018-03-11 stsp if (worktree->lockfd != -1)
369 056e7441 2018-03-11 stsp close(worktree->lockfd);
370 6d9d28c3 2018-03-11 stsp free(worktree);
374 86c3caaf 2018-03-09 stsp got_worktree_get_repo_path(struct got_worktree *worktree)
376 cde76477 2018-03-11 stsp return strdup(worktree->repo_path);
380 35be1456 2018-03-11 stsp got_worktree_get_head_ref_name(struct got_worktree *worktree)
382 271d2a38 2018-12-25 stsp return got_ref_to_str(worktree->head_ref);
385 9d31a1d8 2018-03-11 stsp static const struct got_error *
386 9d31a1d8 2018-03-11 stsp lock_worktree(struct got_worktree *worktree, int operation)
388 9d31a1d8 2018-03-11 stsp if (flock(worktree->lockfd, operation | LOCK_NB) == -1)
389 9d31a1d8 2018-03-11 stsp return (errno == EWOULDBLOCK ? got_error(GOT_ERR_WORKTREE_BUSY)
390 9d31a1d8 2018-03-11 stsp : got_error_from_errno());
391 86c3caaf 2018-03-09 stsp return NULL;
394 9d31a1d8 2018-03-11 stsp static const char *
395 9d31a1d8 2018-03-11 stsp apply_path_prefix(struct got_worktree *worktree, const char *path)
397 9d31a1d8 2018-03-11 stsp const char *p = path;
398 9d31a1d8 2018-03-11 stsp p += strlen(worktree->path_prefix);
399 9d31a1d8 2018-03-11 stsp if (*p == '/')
404 9d31a1d8 2018-03-11 stsp static const struct got_error *
405 a207cf0a 2018-12-29 stsp blob_checkout(struct got_worktree *worktree, struct got_fileindex *fileindex,
406 eac9755f 2018-12-29 stsp struct got_fileindex_entry *entry, const char *path,
407 eac9755f 2018-12-29 stsp struct got_blob_object *blob, struct got_repository *repo,
408 d7b62c98 2018-12-27 stsp got_worktree_checkout_cb progress_cb, void *progress_arg,
409 d7b62c98 2018-12-27 stsp const char *progress_path)
411 9d31a1d8 2018-03-11 stsp const struct got_error *err = NULL;
412 c34b20a2 2018-03-12 stsp char *ondisk_path;
414 9d31a1d8 2018-03-11 stsp size_t len, hdrlen;
416 c34b20a2 2018-03-12 stsp if (asprintf(&ondisk_path, "%s/%s", worktree->root_path,
417 9d31a1d8 2018-03-11 stsp apply_path_prefix(worktree, path)) == -1)
418 0a585a0d 2018-03-17 stsp return got_error_from_errno();
420 c34b20a2 2018-03-12 stsp fd = open(ondisk_path, O_RDWR | O_CREAT | O_EXCL | O_NOFOLLOW,
421 9d31a1d8 2018-03-11 stsp GOT_DEFAULT_FILE_MODE);
422 9d31a1d8 2018-03-11 stsp if (fd == -1) {
423 9d31a1d8 2018-03-11 stsp err = got_error_from_errno();
424 9d31a1d8 2018-03-11 stsp if (errno == EEXIST) {
425 9d31a1d8 2018-03-11 stsp struct stat sb;
426 c34b20a2 2018-03-12 stsp if (lstat(ondisk_path, &sb) == -1) {
427 9d31a1d8 2018-03-11 stsp err = got_error_from_errno();
428 9d31a1d8 2018-03-11 stsp } else if (!S_ISREG(sb.st_mode)) {
429 9d31a1d8 2018-03-11 stsp /* TODO file is obstructed; do something */
430 9d31a1d8 2018-03-11 stsp err = got_error(GOT_ERR_FILE_OBSTRUCTED);
432 d70b8e30 2018-12-27 stsp /* TODO: Merge the file! */
433 eecfbcd1 2018-12-29 stsp (*progress_cb)(progress_arg, GOT_STATUS_EXISTS,
434 d7b62c98 2018-12-27 stsp progress_path);
435 d70b8e30 2018-12-27 stsp return NULL;
438 9d31a1d8 2018-03-11 stsp return err;
441 eecfbcd1 2018-12-29 stsp (*progress_cb)(progress_arg, GOT_STATUS_ADD, progress_path);
443 9d31a1d8 2018-03-11 stsp hdrlen = got_object_blob_get_hdrlen(blob);
445 9d31a1d8 2018-03-11 stsp const uint8_t *buf = got_object_blob_get_read_buf(blob);
446 9d31a1d8 2018-03-11 stsp err = got_object_blob_read_block(&len, blob);
449 9d31a1d8 2018-03-11 stsp if (len > 0) {
450 9d31a1d8 2018-03-11 stsp /* Skip blob object header first time around. */
451 9d31a1d8 2018-03-11 stsp ssize_t outlen = write(fd, buf + hdrlen, len - hdrlen);
452 9d31a1d8 2018-03-11 stsp if (outlen == -1) {
453 9d31a1d8 2018-03-11 stsp err = got_error_from_errno();
455 61d6eaa3 2018-12-24 stsp } else if (outlen != len - hdrlen) {
456 9d31a1d8 2018-03-11 stsp err = got_error(GOT_ERR_IO);
459 61d6eaa3 2018-12-24 stsp hdrlen = 0;
461 9d31a1d8 2018-03-11 stsp } while (len != 0);
466 51514078 2018-12-25 stsp err = got_fileindex_entry_update(entry, ondisk_path,
467 51514078 2018-12-25 stsp blob->id.sha1, worktree->base_commit_id->sha1);
469 51514078 2018-12-25 stsp err = got_fileindex_entry_alloc(&entry, ondisk_path,
470 51514078 2018-12-25 stsp apply_path_prefix(worktree, path), blob->id.sha1,
471 51514078 2018-12-25 stsp worktree->base_commit_id->sha1);
474 51514078 2018-12-25 stsp err = got_fileindex_entry_add(fileindex, entry);
480 c34b20a2 2018-03-12 stsp free(ondisk_path);
481 9d31a1d8 2018-03-11 stsp return err;
484 9d31a1d8 2018-03-11 stsp static const struct got_error *
485 9d31a1d8 2018-03-11 stsp add_dir_on_disk(struct got_worktree *worktree, const char *path)
487 9d31a1d8 2018-03-11 stsp const struct got_error *err = NULL;
488 9d31a1d8 2018-03-11 stsp char *abspath;
490 9d31a1d8 2018-03-11 stsp if (asprintf(&abspath, "%s/%s", worktree->root_path,
491 9d31a1d8 2018-03-11 stsp apply_path_prefix(worktree, path)) == -1)
492 0a585a0d 2018-03-17 stsp return got_error_from_errno();
494 9d31a1d8 2018-03-11 stsp /* XXX queue work rather than editing disk directly? */
495 9d31a1d8 2018-03-11 stsp if (mkdir(abspath, GOT_DEFAULT_DIR_MODE) == -1) {
496 9d31a1d8 2018-03-11 stsp struct stat sb;
498 9d31a1d8 2018-03-11 stsp if (errno != EEXIST) {
499 9d31a1d8 2018-03-11 stsp err = got_error_from_errno();
503 9d31a1d8 2018-03-11 stsp if (lstat(abspath, &sb) == -1) {
504 9d31a1d8 2018-03-11 stsp err = got_error_from_errno();
508 9d31a1d8 2018-03-11 stsp if (!S_ISDIR(sb.st_mode)) {
509 9d31a1d8 2018-03-11 stsp /* TODO directory is obstructed; do something */
510 9d31a1d8 2018-03-11 stsp return got_error(GOT_ERR_FILE_OBSTRUCTED);
515 9d31a1d8 2018-03-11 stsp free(abspath);
516 9d31a1d8 2018-03-11 stsp return err;
519 9d31a1d8 2018-03-11 stsp static const struct got_error *
520 9d31a1d8 2018-03-11 stsp tree_checkout(struct got_worktree *, struct got_fileindex *,
521 92a684f4 2018-03-12 stsp struct got_tree_object *, const char *, struct got_repository *,
522 99437157 2018-11-11 stsp got_worktree_checkout_cb progress_cb, void *progress_arg,
523 99437157 2018-11-11 stsp got_worktree_cancel_cb cancel_cb, void *cancel_arg);
525 9d31a1d8 2018-03-11 stsp static const struct got_error *
526 9d31a1d8 2018-03-11 stsp tree_checkout_entry(struct got_worktree *worktree,
527 9d31a1d8 2018-03-11 stsp struct got_fileindex *fileindex, struct got_tree_entry *te,
528 92a684f4 2018-03-12 stsp const char *parent, struct got_repository *repo,
529 99437157 2018-11-11 stsp got_worktree_checkout_cb progress_cb, void *progress_arg,
530 99437157 2018-11-11 stsp got_worktree_cancel_cb cancel_cb, void *cancel_arg)
532 9d31a1d8 2018-03-11 stsp const struct got_error *err = NULL;
533 9d31a1d8 2018-03-11 stsp struct got_object *obj = NULL;
534 9d31a1d8 2018-03-11 stsp struct got_blob_object *blob = NULL;
535 eac9755f 2018-12-29 stsp struct got_fileindex_entry *entry = NULL;
536 9d31a1d8 2018-03-11 stsp struct got_tree_object *tree = NULL;
537 9d31a1d8 2018-03-11 stsp char *path = NULL;
538 f7b38925 2018-04-01 stsp char *progress_path = NULL;
539 9d31a1d8 2018-03-11 stsp size_t len;
541 9d31a1d8 2018-03-11 stsp if (parent[0] == '/' && parent[1] == '\0')
542 9d31a1d8 2018-03-11 stsp parent = "";
543 9d31a1d8 2018-03-11 stsp if (asprintf(&path, "%s/%s", parent, te->name) == -1)
544 0a585a0d 2018-03-17 stsp return got_error_from_errno();
546 9d31a1d8 2018-03-11 stsp /* Skip this entry if it is outside of our path prefix. */
547 9d31a1d8 2018-03-11 stsp len = MIN(strlen(worktree->path_prefix), strlen(path));
548 9d31a1d8 2018-03-11 stsp if (strncmp(path, worktree->path_prefix, len) != 0) {
549 9d31a1d8 2018-03-11 stsp free(path);
550 9d31a1d8 2018-03-11 stsp return NULL;
553 9d31a1d8 2018-03-11 stsp err = got_object_open(&obj, repo, te->id);
557 f7b38925 2018-04-01 stsp progress_path = path;
558 f7b38925 2018-04-01 stsp if (strncmp(progress_path, worktree->path_prefix, len) == 0)
559 f7b38925 2018-04-01 stsp progress_path += len;
561 15a94983 2018-12-23 stsp switch (obj->type) {
562 9d31a1d8 2018-03-11 stsp case GOT_OBJ_TYPE_BLOB:
563 9d31a1d8 2018-03-11 stsp if (strlen(worktree->path_prefix) >= strlen(path))
565 eac9755f 2018-12-29 stsp entry = got_fileindex_entry_get(fileindex,
566 eac9755f 2018-12-29 stsp apply_path_prefix(worktree, path));
567 eac9755f 2018-12-29 stsp if (entry &&
568 eac9755f 2018-12-29 stsp memcmp(entry->commit_sha1, worktree->base_commit_id->sha1,
569 eac9755f 2018-12-29 stsp SHA1_DIGEST_LENGTH) == 0)
570 eac9755f 2018-12-29 stsp break; /* file already checked out */
571 9d31a1d8 2018-03-11 stsp err = got_object_blob_open(&blob, repo, obj, 8192);
574 eac9755f 2018-12-29 stsp err = blob_checkout(worktree, fileindex, entry, path, blob,
575 eac9755f 2018-12-29 stsp repo, progress_cb, progress_arg, progress_path);
577 9d31a1d8 2018-03-11 stsp case GOT_OBJ_TYPE_TREE:
578 9d31a1d8 2018-03-11 stsp if (strlen(worktree->path_prefix) < strlen(path)) {
579 9d31a1d8 2018-03-11 stsp err = add_dir_on_disk(worktree, path);
583 381be7cc 2018-12-29 stsp err = got_object_tree_open(&tree, repo, obj);
586 99437157 2018-11-11 stsp /* XXX infinite recursion possible */
587 92a684f4 2018-03-12 stsp err = tree_checkout(worktree, fileindex, tree, path, repo,
588 99437157 2018-11-11 stsp progress_cb, progress_arg, cancel_cb, cancel_arg);
596 9d31a1d8 2018-03-11 stsp got_object_blob_close(blob);
598 9d31a1d8 2018-03-11 stsp got_object_tree_close(tree);
600 9d31a1d8 2018-03-11 stsp got_object_close(obj);
601 9d31a1d8 2018-03-11 stsp free(path);
602 9d31a1d8 2018-03-11 stsp return err;
605 9d31a1d8 2018-03-11 stsp static const struct got_error *
606 9d31a1d8 2018-03-11 stsp tree_checkout(struct got_worktree *worktree,
607 9d31a1d8 2018-03-11 stsp struct got_fileindex *fileindex, struct got_tree_object *tree,
608 92a684f4 2018-03-12 stsp const char *path, struct got_repository *repo,
609 99437157 2018-11-11 stsp got_worktree_checkout_cb progress_cb, void *progress_arg,
610 99437157 2018-11-11 stsp got_worktree_cancel_cb cancel_cb, void *cancel_arg)
612 9d31a1d8 2018-03-11 stsp const struct got_error *err = NULL;
613 883f0469 2018-06-23 stsp const struct got_tree_entries *entries;
614 9d31a1d8 2018-03-11 stsp struct got_tree_entry *te;
615 9d31a1d8 2018-03-11 stsp size_t len;
617 9d31a1d8 2018-03-11 stsp /* Skip this tree if it is outside of our path prefix. */
618 9d31a1d8 2018-03-11 stsp len = MIN(strlen(worktree->path_prefix), strlen(path));
619 9d31a1d8 2018-03-11 stsp if (strncmp(path, worktree->path_prefix, len) != 0)
620 9d31a1d8 2018-03-11 stsp return NULL;
622 883f0469 2018-06-23 stsp entries = got_object_tree_get_entries(tree);
623 883f0469 2018-06-23 stsp SIMPLEQ_FOREACH(te, &entries->head, entry) {
624 99437157 2018-11-11 stsp if (cancel_cb) {
625 99437157 2018-11-11 stsp err = (*cancel_cb)(cancel_arg);
629 92a684f4 2018-03-12 stsp err = tree_checkout_entry(worktree, fileindex, te, path, repo,
630 99437157 2018-11-11 stsp progress_cb, progress_arg, cancel_cb, cancel_arg);
635 9d31a1d8 2018-03-11 stsp return err;
638 9d31a1d8 2018-03-11 stsp const struct got_error *
639 9d31a1d8 2018-03-11 stsp got_worktree_checkout_files(struct got_worktree *worktree,
640 93a30277 2018-12-24 stsp struct got_repository *repo, got_worktree_checkout_cb progress_cb,
641 93a30277 2018-12-24 stsp void *progress_arg, got_worktree_cancel_cb cancel_cb, void *cancel_arg)
643 a143fb78 2018-12-25 stsp const struct got_error *err = NULL, *unlockerr, *checkout_err = NULL;
644 9d31a1d8 2018-03-11 stsp struct got_commit_object *commit = NULL;
645 9d31a1d8 2018-03-11 stsp struct got_tree_object *tree = NULL;
646 9d31a1d8 2018-03-11 stsp char *fileindex_path = NULL, *new_fileindex_path = NULL;
647 9d31a1d8 2018-03-11 stsp struct got_fileindex *fileindex = NULL;
648 51514078 2018-12-25 stsp FILE *index = NULL, *new_index = NULL;
650 9d31a1d8 2018-03-11 stsp err = lock_worktree(worktree, LOCK_EX);
652 9d31a1d8 2018-03-11 stsp return err;
654 7426bbfd 2018-12-24 stsp fileindex = got_fileindex_alloc();
655 9d31a1d8 2018-03-11 stsp if (fileindex == NULL) {
656 0a585a0d 2018-03-17 stsp err = got_error_from_errno();
660 9d31a1d8 2018-03-11 stsp if (asprintf(&fileindex_path, "%s/%s/%s", worktree->root_path,
661 9d31a1d8 2018-03-11 stsp GOT_WORKTREE_GOT_DIR, GOT_WORKTREE_FILE_INDEX) == -1) {
662 0a585a0d 2018-03-17 stsp err = got_error_from_errno();
663 9d31a1d8 2018-03-11 stsp fileindex_path = NULL;
668 51514078 2018-12-25 stsp * Read the file index.
669 51514078 2018-12-25 stsp * Checking out files is supposed to be an idempotent operation.
670 51514078 2018-12-25 stsp * If the on-disk file index is incomplete we will try to complete it.
672 51514078 2018-12-25 stsp index = fopen(fileindex_path, "rb");
673 51514078 2018-12-25 stsp if (index == NULL) {
674 51514078 2018-12-25 stsp err = got_error_from_errno();
677 51514078 2018-12-25 stsp err = got_fileindex_read(fileindex, index);
678 51514078 2018-12-25 stsp fclose(index);
682 b8bdcc21 2018-12-24 stsp err = got_opentemp_named(&new_fileindex_path, &new_index,
683 b8bdcc21 2018-12-24 stsp fileindex_path);
687 eaccb85f 2018-12-25 stsp err = got_object_open_as_commit(&commit, repo,
688 eaccb85f 2018-12-25 stsp worktree->base_commit_id);
692 93a30277 2018-12-24 stsp err = got_object_open_as_tree(&tree, repo, commit->tree_id);
696 a143fb78 2018-12-25 stsp checkout_err = tree_checkout(worktree, fileindex, tree, "/", repo,
697 a143fb78 2018-12-25 stsp progress_cb, progress_arg, cancel_cb, cancel_arg);
699 a143fb78 2018-12-25 stsp /* Try to sync the fileindex back to disk in any case. */
700 b8bdcc21 2018-12-24 stsp err = got_fileindex_write(fileindex, new_index);
704 9d31a1d8 2018-03-11 stsp if (rename(new_fileindex_path, fileindex_path) != 0) {
705 9d31a1d8 2018-03-11 stsp err = got_error_from_errno();
709 9d31a1d8 2018-03-11 stsp free(new_fileindex_path);
710 9d31a1d8 2018-03-11 stsp new_fileindex_path = NULL;
714 edfa7d7f 2018-09-11 stsp got_object_tree_close(tree);
715 9d31a1d8 2018-03-11 stsp if (commit)
716 9d31a1d8 2018-03-11 stsp got_object_commit_close(commit);
717 9d31a1d8 2018-03-11 stsp if (new_fileindex_path)
718 9d31a1d8 2018-03-11 stsp unlink(new_fileindex_path);
719 b8bdcc21 2018-12-24 stsp if (new_index)
720 b8bdcc21 2018-12-24 stsp fclose(new_index);
721 9d31a1d8 2018-03-11 stsp free(new_fileindex_path);
722 9d31a1d8 2018-03-11 stsp free(fileindex_path);
723 7426bbfd 2018-12-24 stsp got_fileindex_free(fileindex);
724 a143fb78 2018-12-25 stsp if (checkout_err)
725 a143fb78 2018-12-25 stsp err = checkout_err;
726 9d31a1d8 2018-03-11 stsp unlockerr = lock_worktree(worktree, LOCK_SH);
727 9d31a1d8 2018-03-11 stsp if (unlockerr && err == NULL)
728 9d31a1d8 2018-03-11 stsp err = unlockerr;
729 9d31a1d8 2018-03-11 stsp return err;