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 86c3caaf 2018-03-09 stsp #include "got_refs.h"
34 9d31a1d8 2018-03-11 stsp #include "got_object.h"
35 86c3caaf 2018-03-09 stsp #include "got_worktree.h"
37 32cb896c 2018-03-11 stsp #include "got_worktree_lib.h"
38 32cb896c 2018-03-11 stsp #include "got_path_lib.h"
39 32cb896c 2018-03-11 stsp #include "got_sha1_lib.h"
40 9d31a1d8 2018-03-11 stsp #include "got_fileindex_lib.h"
41 9d31a1d8 2018-03-11 stsp #include "got_zbuf_lib.h"
42 9d31a1d8 2018-03-11 stsp #include "got_delta_lib.h"
43 9d31a1d8 2018-03-11 stsp #include "got_object_lib.h"
46 9d31a1d8 2018-03-11 stsp #define MIN(_a,_b) ((_a) < (_b) ? (_a) : (_b))
49 99724ed4 2018-03-10 stsp static const struct got_error *
50 7ac97322 2018-03-11 stsp create_meta_file(const char *path_got, const char *name, const char *content)
52 99724ed4 2018-03-10 stsp const struct got_error *err = NULL;
54 99724ed4 2018-03-10 stsp int fd = -1;
55 99724ed4 2018-03-10 stsp char buf[4];
58 7ac97322 2018-03-11 stsp if (asprintf(&path, "%s/%s", path_got, name) == -1) {
59 99724ed4 2018-03-10 stsp err = got_error(GOT_ERR_NO_MEM);
60 99724ed4 2018-03-10 stsp path = NULL;
64 73a5ef67 2018-03-11 stsp fd = open(path, O_RDWR | O_CREAT | O_EXCL | O_NOFOLLOW,
65 99724ed4 2018-03-10 stsp GOT_DEFAULT_FILE_MODE);
66 99724ed4 2018-03-10 stsp if (fd == -1) {
67 99724ed4 2018-03-10 stsp err = got_error_from_errno();
71 99724ed4 2018-03-10 stsp /* The file should be empty. */
72 99724ed4 2018-03-10 stsp n = read(fd, buf, sizeof(buf));
73 99724ed4 2018-03-10 stsp if (n != 0) {
74 99724ed4 2018-03-10 stsp err = (n == -1 ? got_error_from_errno() :
75 99724ed4 2018-03-10 stsp got_error(GOT_ERR_WORKTREE_EXISTS));
79 99724ed4 2018-03-10 stsp if (content) {
80 99724ed4 2018-03-10 stsp int len = dprintf(fd, "%s\n", content);
81 99724ed4 2018-03-10 stsp if (len != strlen(content) + 1) {
82 99724ed4 2018-03-10 stsp err = got_error_from_errno();
88 99724ed4 2018-03-10 stsp if (fd != -1 && close(fd) == -1 && err == NULL)
89 99724ed4 2018-03-10 stsp err = got_error_from_errno();
94 09fe317a 2018-03-11 stsp static const struct got_error *
95 7ac97322 2018-03-11 stsp read_meta_file(char **content, const char *path_got, const char *name)
97 09fe317a 2018-03-11 stsp const struct got_error *err = NULL;
99 09fe317a 2018-03-11 stsp int fd = -1;
101 09fe317a 2018-03-11 stsp struct stat sb;
103 09fe317a 2018-03-11 stsp *content = NULL;
105 7ac97322 2018-03-11 stsp if (asprintf(&path, "%s/%s", path_got, name) == -1) {
106 09fe317a 2018-03-11 stsp err = got_error(GOT_ERR_NO_MEM);
107 09fe317a 2018-03-11 stsp path = NULL;
111 ef99fdb1 2018-03-11 stsp fd = open(path, O_RDONLY | O_NOFOLLOW);
112 09fe317a 2018-03-11 stsp if (fd == -1) {
113 ef99fdb1 2018-03-11 stsp err = got_error_from_errno();
116 ef99fdb1 2018-03-11 stsp if (flock(fd, LOCK_SH | LOCK_NB) == -1) {
117 73a5ef67 2018-03-11 stsp err = (errno == EWOULDBLOCK ? got_error(GOT_ERR_WORKTREE_BUSY)
118 73a5ef67 2018-03-11 stsp : got_error_from_errno());
122 09fe317a 2018-03-11 stsp stat(path, &sb);
123 09fe317a 2018-03-11 stsp *content = calloc(1, sb.st_size);
124 09fe317a 2018-03-11 stsp if (*content == NULL) {
125 09fe317a 2018-03-11 stsp err = got_error(GOT_ERR_NO_MEM);
129 09fe317a 2018-03-11 stsp n = read(fd, *content, sb.st_size);
130 09fe317a 2018-03-11 stsp if (n != sb.st_size) {
131 0605801d 2018-03-11 stsp err = (n == -1 ? got_error_from_errno() :
132 0605801d 2018-03-11 stsp got_error(GOT_ERR_WORKTREE_META));
135 09fe317a 2018-03-11 stsp if ((*content)[sb.st_size - 1] != '\n') {
136 09fe317a 2018-03-11 stsp err = got_error(GOT_ERR_WORKTREE_META);
139 09fe317a 2018-03-11 stsp (*content)[sb.st_size - 1] = '\0';
142 09fe317a 2018-03-11 stsp if (fd != -1 && close(fd) == -1 && err == NULL)
143 09fe317a 2018-03-11 stsp err = got_error_from_errno();
144 09fe317a 2018-03-11 stsp free(path);
146 09fe317a 2018-03-11 stsp free(*content);
147 09fe317a 2018-03-11 stsp *content = NULL;
149 09fe317a 2018-03-11 stsp return err;
152 86c3caaf 2018-03-09 stsp const struct got_error *
153 86c3caaf 2018-03-09 stsp got_worktree_init(const char *path, struct got_reference *head_ref,
154 577ec78f 2018-03-11 stsp const char *prefix, struct got_repository *repo)
156 86c3caaf 2018-03-09 stsp const struct got_error *err = NULL;
157 7ac97322 2018-03-11 stsp char *path_got = NULL;
158 86c3caaf 2018-03-09 stsp char *refstr = NULL;
159 cde76477 2018-03-11 stsp char *repo_path = NULL;
160 1451e70d 2018-03-10 stsp char *formatstr = NULL;
162 577ec78f 2018-03-11 stsp if (!got_path_is_absolute(prefix))
163 577ec78f 2018-03-11 stsp return got_error(GOT_ERR_BAD_PATH);
165 86c3caaf 2018-03-09 stsp /* Create top-level directory (may already exist). */
166 2cb4bacb 2018-03-11 stsp if (mkdir(path, GOT_DEFAULT_DIR_MODE) == -1 && errno != EEXIST) {
167 86c3caaf 2018-03-09 stsp err = got_error_from_errno();
171 86c3caaf 2018-03-09 stsp /* Create .got directory (may already exist). */
172 7ac97322 2018-03-11 stsp if (asprintf(&path_got, "%s/%s", path, GOT_WORKTREE_GOT_DIR) == -1) {
173 86c3caaf 2018-03-09 stsp err = got_error(GOT_ERR_NO_MEM);
176 7ac97322 2018-03-11 stsp if (mkdir(path_got, GOT_DEFAULT_DIR_MODE) == -1 && errno != EEXIST) {
177 86c3caaf 2018-03-09 stsp err = got_error_from_errno();
181 056e7441 2018-03-11 stsp /* Create an empty lock file. */
182 7ac97322 2018-03-11 stsp err = create_meta_file(path_got, GOT_WORKTREE_LOCK, NULL);
186 86c3caaf 2018-03-09 stsp /* Create an empty file index. */
187 7ac97322 2018-03-11 stsp err = create_meta_file(path_got, GOT_WORKTREE_FILE_INDEX, NULL);
191 86c3caaf 2018-03-09 stsp /* Write the HEAD reference. */
192 86c3caaf 2018-03-09 stsp refstr = got_ref_to_str(head_ref);
193 86c3caaf 2018-03-09 stsp if (refstr == NULL) {
194 86c3caaf 2018-03-09 stsp err = got_error(GOT_ERR_NO_MEM);
197 7ac97322 2018-03-11 stsp err = create_meta_file(path_got, GOT_WORKTREE_HEAD, refstr);
201 1451e70d 2018-03-10 stsp /* Store path to repository. */
202 cde76477 2018-03-11 stsp repo_path = got_repo_get_path(repo);
203 cde76477 2018-03-11 stsp if (repo_path == NULL) {
204 86c3caaf 2018-03-09 stsp err = got_error(GOT_ERR_NO_MEM);
207 cde76477 2018-03-11 stsp err = create_meta_file(path_got, GOT_WORKTREE_REPOSITORY, repo_path);
211 577ec78f 2018-03-11 stsp /* Store in-repository path prefix. */
212 7ac97322 2018-03-11 stsp err = create_meta_file(path_got, GOT_WORKTREE_PATH_PREFIX, prefix);
216 9dce68ed 2018-03-10 stsp /* Stamp work tree with format file. */
217 1451e70d 2018-03-10 stsp if (asprintf(&formatstr, "%d", GOT_WORKTREE_FORMAT_VERSION) == -1) {
218 1451e70d 2018-03-10 stsp err = got_error(GOT_ERR_NO_MEM);
221 7ac97322 2018-03-11 stsp err = create_meta_file(path_got, GOT_WORKTREE_FORMAT, formatstr);
226 7ac97322 2018-03-11 stsp free(path_got);
227 1451e70d 2018-03-10 stsp free(formatstr);
228 86c3caaf 2018-03-09 stsp free(refstr);
229 cde76477 2018-03-11 stsp free(repo_path);
230 86c3caaf 2018-03-09 stsp return err;
233 86c3caaf 2018-03-09 stsp const struct got_error *
234 86c3caaf 2018-03-09 stsp got_worktree_open(struct got_worktree **worktree, const char *path)
236 6d9d28c3 2018-03-11 stsp const struct got_error *err = NULL;
237 7ac97322 2018-03-11 stsp char *path_got;
238 6d9d28c3 2018-03-11 stsp char *formatstr = NULL;
239 056e7441 2018-03-11 stsp char *path_lock = NULL;
240 6d9d28c3 2018-03-11 stsp int version, fd = -1;
241 6d9d28c3 2018-03-11 stsp const char *errstr;
243 6d9d28c3 2018-03-11 stsp *worktree = NULL;
245 7ac97322 2018-03-11 stsp if (asprintf(&path_got, "%s/%s", path, GOT_WORKTREE_GOT_DIR) == -1) {
246 6d9d28c3 2018-03-11 stsp err = got_error(GOT_ERR_NO_MEM);
247 7ac97322 2018-03-11 stsp path_got = NULL;
251 7ac97322 2018-03-11 stsp if (asprintf(&path_lock, "%s/%s", path_got, GOT_WORKTREE_LOCK) == -1) {
252 6d9d28c3 2018-03-11 stsp err = got_error(GOT_ERR_NO_MEM);
253 056e7441 2018-03-11 stsp path_lock = NULL;
257 056e7441 2018-03-11 stsp fd = open(path_lock, O_RDWR | O_EXLOCK | O_NONBLOCK);
258 6d9d28c3 2018-03-11 stsp if (fd == -1) {
259 73a5ef67 2018-03-11 stsp err = (errno == EWOULDBLOCK ? got_error(GOT_ERR_WORKTREE_BUSY)
260 73a5ef67 2018-03-11 stsp : got_error_from_errno());
264 7ac97322 2018-03-11 stsp err = read_meta_file(&formatstr, path_got, GOT_WORKTREE_FORMAT);
268 6d9d28c3 2018-03-11 stsp version = strtonum(formatstr, 1, INT_MAX, &errstr);
269 6d9d28c3 2018-03-11 stsp if (errstr) {
270 6d9d28c3 2018-03-11 stsp err = got_error(GOT_ERR_WORKTREE_META);
273 6d9d28c3 2018-03-11 stsp if (version != GOT_WORKTREE_FORMAT_VERSION) {
274 6d9d28c3 2018-03-11 stsp err = got_error(GOT_ERR_WORKTREE_VERS);
278 6d9d28c3 2018-03-11 stsp *worktree = calloc(1, sizeof(**worktree));
279 6d9d28c3 2018-03-11 stsp if (*worktree == NULL) {
280 6d9d28c3 2018-03-11 stsp err = got_error(GOT_ERR_NO_MEM);
283 056e7441 2018-03-11 stsp (*worktree)->lockfd = -1;
285 c88eb298 2018-03-11 stsp (*worktree)->root_path = strdup(path);
286 c88eb298 2018-03-11 stsp if ((*worktree)->root_path == NULL) {
287 6d9d28c3 2018-03-11 stsp err = got_error(GOT_ERR_NO_MEM);
290 cde76477 2018-03-11 stsp err = read_meta_file(&(*worktree)->repo_path, path_got,
291 6d9d28c3 2018-03-11 stsp GOT_WORKTREE_REPOSITORY);
294 7ac97322 2018-03-11 stsp err = read_meta_file(&(*worktree)->path_prefix, path_got,
295 6d9d28c3 2018-03-11 stsp GOT_WORKTREE_PATH_PREFIX);
299 e8f36958 2018-03-11 stsp err = read_meta_file(&(*worktree)->head_ref, path_got,
300 e8f36958 2018-03-11 stsp GOT_WORKTREE_HEAD);
305 7ac97322 2018-03-11 stsp free(path_got);
306 056e7441 2018-03-11 stsp free(path_lock);
308 6d9d28c3 2018-03-11 stsp if (fd != -1)
310 6d9d28c3 2018-03-11 stsp if (*worktree != NULL)
311 6d9d28c3 2018-03-11 stsp got_worktree_close(*worktree);
312 6d9d28c3 2018-03-11 stsp *worktree = NULL;
314 056e7441 2018-03-11 stsp (*worktree)->lockfd = fd;
316 6d9d28c3 2018-03-11 stsp return err;
320 86c3caaf 2018-03-09 stsp got_worktree_close(struct got_worktree *worktree)
322 c88eb298 2018-03-11 stsp free(worktree->root_path);
323 cde76477 2018-03-11 stsp free(worktree->repo_path);
324 6d9d28c3 2018-03-11 stsp free(worktree->path_prefix);
325 d6c38e0d 2018-03-11 stsp free(worktree->base_commit);
326 e8f36958 2018-03-11 stsp free(worktree->head_ref);
327 056e7441 2018-03-11 stsp if (worktree->lockfd != -1)
328 056e7441 2018-03-11 stsp close(worktree->lockfd);
329 6d9d28c3 2018-03-11 stsp free(worktree);
333 86c3caaf 2018-03-09 stsp got_worktree_get_repo_path(struct got_worktree *worktree)
335 cde76477 2018-03-11 stsp return strdup(worktree->repo_path);
339 35be1456 2018-03-11 stsp got_worktree_get_head_ref_name(struct got_worktree *worktree)
341 35be1456 2018-03-11 stsp return strdup(worktree->head_ref);
344 9d31a1d8 2018-03-11 stsp static const struct got_error *
345 9d31a1d8 2018-03-11 stsp lock_worktree(struct got_worktree *worktree, int operation)
347 9d31a1d8 2018-03-11 stsp if (flock(worktree->lockfd, operation | LOCK_NB) == -1)
348 9d31a1d8 2018-03-11 stsp return (errno == EWOULDBLOCK ? got_error(GOT_ERR_WORKTREE_BUSY)
349 9d31a1d8 2018-03-11 stsp : got_error_from_errno());
350 86c3caaf 2018-03-09 stsp return NULL;
353 9d31a1d8 2018-03-11 stsp static const char *
354 9d31a1d8 2018-03-11 stsp apply_path_prefix(struct got_worktree *worktree, const char *path)
356 9d31a1d8 2018-03-11 stsp const char *p = path;
357 9d31a1d8 2018-03-11 stsp p += strlen(worktree->path_prefix);
358 9d31a1d8 2018-03-11 stsp if (*p == '/')
363 9d31a1d8 2018-03-11 stsp static const struct got_error *
364 9d31a1d8 2018-03-11 stsp add_file_on_disk(struct got_worktree *worktree, struct got_fileindex *fileindex,
365 9d31a1d8 2018-03-11 stsp const char *path, struct got_blob_object *blob, struct got_repository *repo)
367 9d31a1d8 2018-03-11 stsp const struct got_error *err = NULL;
368 c34b20a2 2018-03-12 stsp char *ondisk_path;
370 9d31a1d8 2018-03-11 stsp size_t len, hdrlen;
371 9d31a1d8 2018-03-11 stsp struct got_fileindex_entry *entry;
373 c34b20a2 2018-03-12 stsp if (asprintf(&ondisk_path, "%s/%s", worktree->root_path,
374 9d31a1d8 2018-03-11 stsp apply_path_prefix(worktree, path)) == -1)
375 9d31a1d8 2018-03-11 stsp return got_error(GOT_ERR_NO_MEM);
377 c34b20a2 2018-03-12 stsp fd = open(ondisk_path, O_RDWR | O_CREAT | O_EXCL | O_NOFOLLOW,
378 9d31a1d8 2018-03-11 stsp GOT_DEFAULT_FILE_MODE);
379 9d31a1d8 2018-03-11 stsp if (fd == -1) {
380 9d31a1d8 2018-03-11 stsp err = got_error_from_errno();
381 9d31a1d8 2018-03-11 stsp if (errno == EEXIST) {
382 9d31a1d8 2018-03-11 stsp struct stat sb;
383 c34b20a2 2018-03-12 stsp if (lstat(ondisk_path, &sb) == -1) {
384 9d31a1d8 2018-03-11 stsp err = got_error_from_errno();
385 9d31a1d8 2018-03-11 stsp } else if (!S_ISREG(sb.st_mode)) {
386 9d31a1d8 2018-03-11 stsp /* TODO file is obstructed; do something */
387 9d31a1d8 2018-03-11 stsp err = got_error(GOT_ERR_FILE_OBSTRUCTED);
390 9d31a1d8 2018-03-11 stsp return err;
393 9d31a1d8 2018-03-11 stsp hdrlen = got_object_blob_get_hdrlen(blob);
395 9d31a1d8 2018-03-11 stsp const uint8_t *buf = got_object_blob_get_read_buf(blob);
396 9d31a1d8 2018-03-11 stsp err = got_object_blob_read_block(&len, blob);
399 9d31a1d8 2018-03-11 stsp if (len > 0) {
400 9d31a1d8 2018-03-11 stsp /* Skip blob object header first time around. */
401 9d31a1d8 2018-03-11 stsp ssize_t outlen = write(fd, buf + hdrlen, len - hdrlen);
402 9d31a1d8 2018-03-11 stsp hdrlen = 0;
403 9d31a1d8 2018-03-11 stsp if (outlen == -1) {
404 9d31a1d8 2018-03-11 stsp err = got_error_from_errno();
406 9d31a1d8 2018-03-11 stsp } else if (outlen != len) {
407 9d31a1d8 2018-03-11 stsp err = got_error(GOT_ERR_IO);
411 9d31a1d8 2018-03-11 stsp } while (len != 0);
415 c34b20a2 2018-03-12 stsp err = got_fileindex_entry_open(&entry, ondisk_path,
416 c34b20a2 2018-03-12 stsp apply_path_prefix(worktree, path), blob->id.sha1);
420 9d31a1d8 2018-03-11 stsp err = got_fileindex_entry_add(fileindex, entry);
425 c34b20a2 2018-03-12 stsp free(ondisk_path);
426 9d31a1d8 2018-03-11 stsp return err;
429 9d31a1d8 2018-03-11 stsp static const struct got_error *
430 9d31a1d8 2018-03-11 stsp add_dir_on_disk(struct got_worktree *worktree, const char *path)
432 9d31a1d8 2018-03-11 stsp const struct got_error *err = NULL;
433 9d31a1d8 2018-03-11 stsp char *abspath;
435 9d31a1d8 2018-03-11 stsp if (asprintf(&abspath, "%s/%s", worktree->root_path,
436 9d31a1d8 2018-03-11 stsp apply_path_prefix(worktree, path)) == -1)
437 9d31a1d8 2018-03-11 stsp return got_error(GOT_ERR_NO_MEM);
439 9d31a1d8 2018-03-11 stsp /* XXX queue work rather than editing disk directly? */
440 9d31a1d8 2018-03-11 stsp if (mkdir(abspath, GOT_DEFAULT_DIR_MODE) == -1) {
441 9d31a1d8 2018-03-11 stsp struct stat sb;
443 9d31a1d8 2018-03-11 stsp if (errno != EEXIST) {
444 9d31a1d8 2018-03-11 stsp err = got_error_from_errno();
448 9d31a1d8 2018-03-11 stsp if (lstat(abspath, &sb) == -1) {
449 9d31a1d8 2018-03-11 stsp err = got_error_from_errno();
453 9d31a1d8 2018-03-11 stsp if (!S_ISDIR(sb.st_mode)) {
454 9d31a1d8 2018-03-11 stsp /* TODO directory is obstructed; do something */
455 9d31a1d8 2018-03-11 stsp return got_error(GOT_ERR_FILE_OBSTRUCTED);
460 9d31a1d8 2018-03-11 stsp free(abspath);
461 9d31a1d8 2018-03-11 stsp return err;
464 9d31a1d8 2018-03-11 stsp static const struct got_error *
465 9d31a1d8 2018-03-11 stsp tree_checkout(struct got_worktree *, struct got_fileindex *,
466 9d31a1d8 2018-03-11 stsp struct got_tree_object *, const char *, struct got_repository *);
468 9d31a1d8 2018-03-11 stsp static const struct got_error *
469 9d31a1d8 2018-03-11 stsp tree_checkout_entry(struct got_worktree *worktree,
470 9d31a1d8 2018-03-11 stsp struct got_fileindex *fileindex, struct got_tree_entry *te,
471 9d31a1d8 2018-03-11 stsp const char *parent, struct got_repository *repo)
473 9d31a1d8 2018-03-11 stsp const struct got_error *err = NULL;
474 9d31a1d8 2018-03-11 stsp struct got_object *obj = NULL;
475 9d31a1d8 2018-03-11 stsp struct got_blob_object *blob = NULL;
476 9d31a1d8 2018-03-11 stsp struct got_tree_object *tree = NULL;
477 9d31a1d8 2018-03-11 stsp char *path = NULL;
478 9d31a1d8 2018-03-11 stsp size_t len;
480 9d31a1d8 2018-03-11 stsp if (parent[0] == '/' && parent[1] == '\0')
481 9d31a1d8 2018-03-11 stsp parent = "";
482 9d31a1d8 2018-03-11 stsp if (asprintf(&path, "%s/%s", parent, te->name) == -1)
483 9d31a1d8 2018-03-11 stsp return got_error(GOT_ERR_NO_MEM);
485 9d31a1d8 2018-03-11 stsp /* Skip this entry if it is outside of our path prefix. */
486 9d31a1d8 2018-03-11 stsp len = MIN(strlen(worktree->path_prefix), strlen(path));
487 9d31a1d8 2018-03-11 stsp if (strncmp(path, worktree->path_prefix, len) != 0) {
488 9d31a1d8 2018-03-11 stsp free(path);
489 9d31a1d8 2018-03-11 stsp return NULL;
492 9d31a1d8 2018-03-11 stsp err = got_object_open(&obj, repo, te->id);
496 9d31a1d8 2018-03-11 stsp switch (got_object_get_type(obj)) {
497 9d31a1d8 2018-03-11 stsp case GOT_OBJ_TYPE_BLOB:
498 9d31a1d8 2018-03-11 stsp if (strlen(worktree->path_prefix) >= strlen(path))
500 9d31a1d8 2018-03-11 stsp err = got_object_blob_open(&blob, repo, obj, 8192);
503 9d31a1d8 2018-03-11 stsp err = add_file_on_disk(worktree, fileindex, path, blob, repo);
505 9d31a1d8 2018-03-11 stsp case GOT_OBJ_TYPE_TREE:
506 9d31a1d8 2018-03-11 stsp err = got_object_tree_open(&tree, repo, obj);
509 9d31a1d8 2018-03-11 stsp if (strlen(worktree->path_prefix) < strlen(path)) {
510 9d31a1d8 2018-03-11 stsp err = add_dir_on_disk(worktree, path);
514 9d31a1d8 2018-03-11 stsp err = tree_checkout(worktree, fileindex, tree, path, repo);
522 9d31a1d8 2018-03-11 stsp got_object_blob_close(blob);
524 9d31a1d8 2018-03-11 stsp got_object_tree_close(tree);
526 9d31a1d8 2018-03-11 stsp got_object_close(obj);
527 9d31a1d8 2018-03-11 stsp free(path);
528 9d31a1d8 2018-03-11 stsp return err;
531 9d31a1d8 2018-03-11 stsp static const struct got_error *
532 9d31a1d8 2018-03-11 stsp tree_checkout(struct got_worktree *worktree,
533 9d31a1d8 2018-03-11 stsp struct got_fileindex *fileindex, struct got_tree_object *tree,
534 9d31a1d8 2018-03-11 stsp const char *path, struct got_repository *repo)
536 9d31a1d8 2018-03-11 stsp const struct got_error *err = NULL;
537 9d31a1d8 2018-03-11 stsp struct got_tree_entry *te;
538 9d31a1d8 2018-03-11 stsp size_t len;
540 9d31a1d8 2018-03-11 stsp /* Skip this tree if it is outside of our path prefix. */
541 9d31a1d8 2018-03-11 stsp len = MIN(strlen(worktree->path_prefix), strlen(path));
542 9d31a1d8 2018-03-11 stsp if (strncmp(path, worktree->path_prefix, len) != 0)
543 9d31a1d8 2018-03-11 stsp return NULL;
545 9d31a1d8 2018-03-11 stsp SIMPLEQ_FOREACH(te, &tree->entries, entry) {
546 9d31a1d8 2018-03-11 stsp err = tree_checkout_entry(worktree, fileindex, te, path, repo);
551 9d31a1d8 2018-03-11 stsp return err;
554 9d31a1d8 2018-03-11 stsp const struct got_error *
555 9d31a1d8 2018-03-11 stsp got_worktree_checkout_files(struct got_worktree *worktree,
556 9d31a1d8 2018-03-11 stsp struct got_reference *head_ref, struct got_repository *repo)
558 9d31a1d8 2018-03-11 stsp const struct got_error *err = NULL, *unlockerr;
559 9d31a1d8 2018-03-11 stsp struct got_object_id *commit_id = NULL;
560 9d31a1d8 2018-03-11 stsp struct got_object *obj = NULL;
561 9d31a1d8 2018-03-11 stsp struct got_commit_object *commit = NULL;
562 9d31a1d8 2018-03-11 stsp struct got_tree_object *tree = NULL;
563 9d31a1d8 2018-03-11 stsp char *fileindex_path = NULL, *new_fileindex_path = NULL;
564 9d31a1d8 2018-03-11 stsp struct got_fileindex *fileindex = NULL;
565 9d31a1d8 2018-03-11 stsp FILE *findex = NULL;
567 9d31a1d8 2018-03-11 stsp err = lock_worktree(worktree, LOCK_EX);
569 9d31a1d8 2018-03-11 stsp return err;
571 9d31a1d8 2018-03-11 stsp fileindex = got_fileindex_open();
572 9d31a1d8 2018-03-11 stsp if (fileindex == NULL) {
573 9d31a1d8 2018-03-11 stsp err = got_error(GOT_ERR_NO_MEM);
577 9d31a1d8 2018-03-11 stsp if (asprintf(&fileindex_path, "%s/%s/%s", worktree->root_path,
578 9d31a1d8 2018-03-11 stsp GOT_WORKTREE_GOT_DIR, GOT_WORKTREE_FILE_INDEX) == -1) {
579 9d31a1d8 2018-03-11 stsp err = got_error(GOT_ERR_NO_MEM);
580 9d31a1d8 2018-03-11 stsp fileindex_path = NULL;
584 51664889 2018-03-12 stsp err = got_opentemp_named(&new_fileindex_path, &findex, fileindex_path);
588 9d31a1d8 2018-03-11 stsp err = got_ref_resolve(&commit_id, repo, head_ref);
592 9d31a1d8 2018-03-11 stsp err = got_object_open(&obj, repo, commit_id);
596 9d31a1d8 2018-03-11 stsp if (got_object_get_type(obj) != GOT_OBJ_TYPE_COMMIT) {
597 9d31a1d8 2018-03-11 stsp err = got_error(GOT_ERR_OBJ_TYPE);
601 9d31a1d8 2018-03-11 stsp err = got_object_commit_open(&commit, repo, obj);
605 9d31a1d8 2018-03-11 stsp got_object_close(obj);
606 9d31a1d8 2018-03-11 stsp err = got_object_open(&obj, repo, commit->tree_id);
610 9d31a1d8 2018-03-11 stsp if (got_object_get_type(obj) != GOT_OBJ_TYPE_TREE) {
611 9d31a1d8 2018-03-11 stsp err = got_error(GOT_ERR_OBJ_TYPE);
615 9d31a1d8 2018-03-11 stsp err = got_object_tree_open(&tree, repo, obj);
619 9d31a1d8 2018-03-11 stsp err = tree_checkout(worktree, fileindex, tree, "/", repo);
623 9d31a1d8 2018-03-11 stsp err = got_fileindex_write(fileindex, findex);
627 9d31a1d8 2018-03-11 stsp if (rename(new_fileindex_path, fileindex_path) != 0) {
628 9d31a1d8 2018-03-11 stsp err = got_error_from_errno();
632 9d31a1d8 2018-03-11 stsp free(new_fileindex_path);
633 9d31a1d8 2018-03-11 stsp new_fileindex_path = NULL;
636 9d31a1d8 2018-03-11 stsp if (commit)
637 9d31a1d8 2018-03-11 stsp got_object_commit_close(commit);
639 9d31a1d8 2018-03-11 stsp got_object_close(obj);
640 9d31a1d8 2018-03-11 stsp free(commit_id);
641 9d31a1d8 2018-03-11 stsp if (new_fileindex_path)
642 9d31a1d8 2018-03-11 stsp unlink(new_fileindex_path);
643 9d31a1d8 2018-03-11 stsp if (findex)
644 9d31a1d8 2018-03-11 stsp fclose(findex);
645 9d31a1d8 2018-03-11 stsp free(new_fileindex_path);
646 9d31a1d8 2018-03-11 stsp free(fileindex_path);
647 9d31a1d8 2018-03-11 stsp got_fileindex_close(fileindex);
648 9d31a1d8 2018-03-11 stsp unlockerr = lock_worktree(worktree, LOCK_SH);
649 9d31a1d8 2018-03-11 stsp if (unlockerr && err == NULL)
650 9d31a1d8 2018-03-11 stsp err = unlockerr;
651 9d31a1d8 2018-03-11 stsp return err;