1 1ea7ccc6 2021-11-15 thomas /*
  2 1ea7ccc6 2021-11-15 thomas  * Copyright (c) 2018, 2019, 2020 Stefan Sperling <stsp@openbsd.org>
  3 1ea7ccc6 2021-11-15 thomas  *
  4 1ea7ccc6 2021-11-15 thomas  * Permission to use, copy, modify, and distribute this software for any
  5 1ea7ccc6 2021-11-15 thomas  * purpose with or without fee is hereby granted, provided that the above
  6 1ea7ccc6 2021-11-15 thomas  * copyright notice and this permission notice appear in all copies.
  7 1ea7ccc6 2021-11-15 thomas  *
  8 1ea7ccc6 2021-11-15 thomas  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  9 1ea7ccc6 2021-11-15 thomas  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 10 1ea7ccc6 2021-11-15 thomas  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 11 1ea7ccc6 2021-11-15 thomas  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 12 1ea7ccc6 2021-11-15 thomas  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 13 1ea7ccc6 2021-11-15 thomas  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 14 1ea7ccc6 2021-11-15 thomas  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 15 1ea7ccc6 2021-11-15 thomas  */
 16 4fccd2fe 2023-03-08 thomas 
 17 4fccd2fe 2023-03-08 thomas #include "got_compat.h"
 18 1ea7ccc6 2021-11-15 thomas 
 19 1ea7ccc6 2021-11-15 thomas #include <sys/stat.h>
 20 8b925c6c 2022-07-16 thomas #include <sys/queue.h>
 21 1ea7ccc6 2021-11-15 thomas 
 22 1ea7ccc6 2021-11-15 thomas #include <errno.h>
 23 1ea7ccc6 2021-11-15 thomas #include <fcntl.h>
 24 1ea7ccc6 2021-11-15 thomas #include <limits.h>
 25 1ea7ccc6 2021-11-15 thomas #include <stddef.h>
 26 1ea7ccc6 2021-11-15 thomas #include <stdio.h>
 27 1ea7ccc6 2021-11-15 thomas #include <stdlib.h>
 28 1ea7ccc6 2021-11-15 thomas #include <string.h>
 29 1ea7ccc6 2021-11-15 thomas #include <unistd.h>
 30 1ea7ccc6 2021-11-15 thomas 
 31 1ea7ccc6 2021-11-15 thomas #include "got_cancel.h"
 32 1ea7ccc6 2021-11-15 thomas #include "got_error.h"
 33 1ea7ccc6 2021-11-15 thomas #include "got_reference.h"
 34 1ea7ccc6 2021-11-15 thomas #include "got_path.h"
 35 1ea7ccc6 2021-11-15 thomas #include "got_worktree.h"
 36 1ea7ccc6 2021-11-15 thomas #include "got_repository.h"
 37 1ea7ccc6 2021-11-15 thomas #include "got_gotconfig.h"
 38 1ea7ccc6 2021-11-15 thomas #include "got_object.h"
 39 1ea7ccc6 2021-11-15 thomas 
 40 1ea7ccc6 2021-11-15 thomas #include "got_lib_worktree.h"
 41 1ea7ccc6 2021-11-15 thomas #include "got_lib_gotconfig.h"
 42 1ea7ccc6 2021-11-15 thomas 
 43 ad10f64e 2023-07-19 thomas #ifndef nitems
 44 ad10f64e 2023-07-19 thomas #define nitems(_a)	(sizeof((_a)) / sizeof((_a)[0]))
 45 ad10f64e 2023-07-19 thomas #endif
 46 ad10f64e 2023-07-19 thomas 
 47 1ea7ccc6 2021-11-15 thomas static const struct got_error *
 48 1ea7ccc6 2021-11-15 thomas read_meta_file(char **content, const char *path_got, const char *name)
 49 1ea7ccc6 2021-11-15 thomas {
 50 1ea7ccc6 2021-11-15 thomas 	const struct got_error *err = NULL;
 51 1ea7ccc6 2021-11-15 thomas 	char *path;
 52 1ea7ccc6 2021-11-15 thomas 	int fd = -1;
 53 1ea7ccc6 2021-11-15 thomas 	ssize_t n;
 54 1ea7ccc6 2021-11-15 thomas 	struct stat sb;
 55 1ea7ccc6 2021-11-15 thomas 
 56 1ea7ccc6 2021-11-15 thomas 	*content = NULL;
 57 1ea7ccc6 2021-11-15 thomas 
 58 1ea7ccc6 2021-11-15 thomas 	if (asprintf(&path, "%s/%s", path_got, name) == -1) {
 59 1ea7ccc6 2021-11-15 thomas 		err = got_error_from_errno("asprintf");
 60 1ea7ccc6 2021-11-15 thomas 		path = NULL;
 61 1ea7ccc6 2021-11-15 thomas 		goto done;
 62 1ea7ccc6 2021-11-15 thomas 	}
 63 1ea7ccc6 2021-11-15 thomas 
 64 06340621 2021-12-31 thomas 	fd = open(path, O_RDONLY | O_NOFOLLOW | O_CLOEXEC);
 65 1ea7ccc6 2021-11-15 thomas 	if (fd == -1) {
 66 1ea7ccc6 2021-11-15 thomas 		if (errno == ENOENT)
 67 1ea7ccc6 2021-11-15 thomas 			err = got_error_path(path, GOT_ERR_WORKTREE_META);
 68 1ea7ccc6 2021-11-15 thomas 		else
 69 1ea7ccc6 2021-11-15 thomas 			err = got_error_from_errno2("open", path);
 70 1ea7ccc6 2021-11-15 thomas 		goto done;
 71 1ea7ccc6 2021-11-15 thomas 	}
 72 1ea7ccc6 2021-11-15 thomas 	if (flock(fd, LOCK_SH | LOCK_NB) == -1) {
 73 1ea7ccc6 2021-11-15 thomas 		err = (errno == EWOULDBLOCK ? got_error(GOT_ERR_WORKTREE_BUSY)
 74 1ea7ccc6 2021-11-15 thomas 		    : got_error_from_errno2("flock", path));
 75 1ea7ccc6 2021-11-15 thomas 		goto done;
 76 1ea7ccc6 2021-11-15 thomas 	}
 77 1ea7ccc6 2021-11-15 thomas 
 78 1ea7ccc6 2021-11-15 thomas 	if (fstat(fd, &sb) != 0) {
 79 1ea7ccc6 2021-11-15 thomas 		err = got_error_from_errno2("fstat", path);
 80 a7cf3076 2023-12-30 thomas 		goto done;
 81 a7cf3076 2023-12-30 thomas 	}
 82 a7cf3076 2023-12-30 thomas 	if (sb.st_size == 0) {
 83 a7cf3076 2023-12-30 thomas 		err = got_error_path(path, GOT_ERR_WORKTREE_META);
 84 1ea7ccc6 2021-11-15 thomas 		goto done;
 85 1ea7ccc6 2021-11-15 thomas 	}
 86 1ea7ccc6 2021-11-15 thomas 	*content = calloc(1, sb.st_size);
 87 1ea7ccc6 2021-11-15 thomas 	if (*content == NULL) {
 88 1ea7ccc6 2021-11-15 thomas 		err = got_error_from_errno("calloc");
 89 1ea7ccc6 2021-11-15 thomas 		goto done;
 90 1ea7ccc6 2021-11-15 thomas 	}
 91 1ea7ccc6 2021-11-15 thomas 
 92 1ea7ccc6 2021-11-15 thomas 	n = read(fd, *content, sb.st_size);
 93 1ea7ccc6 2021-11-15 thomas 	if (n != sb.st_size) {
 94 1ea7ccc6 2021-11-15 thomas 		err = (n == -1 ? got_error_from_errno2("read", path) :
 95 1ea7ccc6 2021-11-15 thomas 		    got_error_path(path, GOT_ERR_WORKTREE_META));
 96 1ea7ccc6 2021-11-15 thomas 		goto done;
 97 1ea7ccc6 2021-11-15 thomas 	}
 98 1ea7ccc6 2021-11-15 thomas 	if ((*content)[sb.st_size - 1] != '\n') {
 99 1ea7ccc6 2021-11-15 thomas 		err = got_error_path(path, GOT_ERR_WORKTREE_META);
100 1ea7ccc6 2021-11-15 thomas 		goto done;
101 1ea7ccc6 2021-11-15 thomas 	}
102 1ea7ccc6 2021-11-15 thomas 	(*content)[sb.st_size - 1] = '\0';
103 1ea7ccc6 2021-11-15 thomas 
104 1ea7ccc6 2021-11-15 thomas done:
105 1ea7ccc6 2021-11-15 thomas 	if (fd != -1 && close(fd) == -1 && err == NULL)
106 1ea7ccc6 2021-11-15 thomas 		err = got_error_from_errno2("close", path_got);
107 1ea7ccc6 2021-11-15 thomas 	free(path);
108 1ea7ccc6 2021-11-15 thomas 	if (err) {
109 1ea7ccc6 2021-11-15 thomas 		free(*content);
110 1ea7ccc6 2021-11-15 thomas 		*content = NULL;
111 1ea7ccc6 2021-11-15 thomas 	}
112 1ea7ccc6 2021-11-15 thomas 	return err;
113 1ea7ccc6 2021-11-15 thomas }
114 1ea7ccc6 2021-11-15 thomas 
115 1ea7ccc6 2021-11-15 thomas static const struct got_error *
116 ad10f64e 2023-07-19 thomas open_worktree(struct got_worktree **worktree, const char *path,
117 ad10f64e 2023-07-19 thomas     const char *meta_dir)
118 1ea7ccc6 2021-11-15 thomas {
119 1ea7ccc6 2021-11-15 thomas 	const struct got_error *err = NULL;
120 ad10f64e 2023-07-19 thomas 	char *path_meta;
121 1ea7ccc6 2021-11-15 thomas 	char *formatstr = NULL;
122 1ea7ccc6 2021-11-15 thomas 	char *uuidstr = NULL;
123 1ea7ccc6 2021-11-15 thomas 	char *path_lock = NULL;
124 1ea7ccc6 2021-11-15 thomas 	char *base_commit_id_str = NULL;
125 1ea7ccc6 2021-11-15 thomas 	int version, fd = -1;
126 1ea7ccc6 2021-11-15 thomas 	const char *errstr;
127 1ea7ccc6 2021-11-15 thomas 	struct got_repository *repo = NULL;
128 b6652669 2022-06-23 thomas 	int *pack_fds = NULL;
129 1ea7ccc6 2021-11-15 thomas 	uint32_t uuid_status;
130 1ea7ccc6 2021-11-15 thomas 
131 1ea7ccc6 2021-11-15 thomas 	*worktree = NULL;
132 1ea7ccc6 2021-11-15 thomas 
133 ad10f64e 2023-07-19 thomas 	if (asprintf(&path_meta, "%s/%s", path, meta_dir) == -1) {
134 1ea7ccc6 2021-11-15 thomas 		err = got_error_from_errno("asprintf");
135 ad10f64e 2023-07-19 thomas 		path_meta = NULL;
136 1ea7ccc6 2021-11-15 thomas 		goto done;
137 1ea7ccc6 2021-11-15 thomas 	}
138 1ea7ccc6 2021-11-15 thomas 
139 ad10f64e 2023-07-19 thomas 	if (asprintf(&path_lock, "%s/%s", path_meta, GOT_WORKTREE_LOCK) == -1) {
140 1ea7ccc6 2021-11-15 thomas 		err = got_error_from_errno("asprintf");
141 1ea7ccc6 2021-11-15 thomas 		path_lock = NULL;
142 1ea7ccc6 2021-11-15 thomas 		goto done;
143 1ea7ccc6 2021-11-15 thomas 	}
144 1ea7ccc6 2021-11-15 thomas 
145 06340621 2021-12-31 thomas 	fd = open(path_lock, O_RDWR | O_EXLOCK | O_NONBLOCK | O_CLOEXEC);
146 1ea7ccc6 2021-11-15 thomas 	if (fd == -1) {
147 1ea7ccc6 2021-11-15 thomas 		err = (errno == EWOULDBLOCK ? got_error(GOT_ERR_WORKTREE_BUSY)
148 1ea7ccc6 2021-11-15 thomas 		    : got_error_from_errno2("open", path_lock));
149 1ea7ccc6 2021-11-15 thomas 		goto done;
150 1ea7ccc6 2021-11-15 thomas 	}
151 1ea7ccc6 2021-11-15 thomas 
152 ad10f64e 2023-07-19 thomas 	err = read_meta_file(&formatstr, path_meta, GOT_WORKTREE_FORMAT);
153 1ea7ccc6 2021-11-15 thomas 	if (err)
154 1ea7ccc6 2021-11-15 thomas 		goto done;
155 1ea7ccc6 2021-11-15 thomas 
156 1ea7ccc6 2021-11-15 thomas 	version = strtonum(formatstr, 1, INT_MAX, &errstr);
157 1ea7ccc6 2021-11-15 thomas 	if (errstr) {
158 1ea7ccc6 2021-11-15 thomas 		err = got_error_msg(GOT_ERR_WORKTREE_META,
159 1ea7ccc6 2021-11-15 thomas 		    "could not parse work tree format version number");
160 1ea7ccc6 2021-11-15 thomas 		goto done;
161 1ea7ccc6 2021-11-15 thomas 	}
162 1ea7ccc6 2021-11-15 thomas 	if (version != GOT_WORKTREE_FORMAT_VERSION) {
163 1ea7ccc6 2021-11-15 thomas 		err = got_error(GOT_ERR_WORKTREE_VERS);
164 1ea7ccc6 2021-11-15 thomas 		goto done;
165 1ea7ccc6 2021-11-15 thomas 	}
166 1ea7ccc6 2021-11-15 thomas 
167 1ea7ccc6 2021-11-15 thomas 	*worktree = calloc(1, sizeof(**worktree));
168 1ea7ccc6 2021-11-15 thomas 	if (*worktree == NULL) {
169 1ea7ccc6 2021-11-15 thomas 		err = got_error_from_errno("calloc");
170 1ea7ccc6 2021-11-15 thomas 		goto done;
171 1ea7ccc6 2021-11-15 thomas 	}
172 1ea7ccc6 2021-11-15 thomas 	(*worktree)->lockfd = -1;
173 1ea7ccc6 2021-11-15 thomas 
174 1ea7ccc6 2021-11-15 thomas 	(*worktree)->root_path = realpath(path, NULL);
175 1ea7ccc6 2021-11-15 thomas 	if ((*worktree)->root_path == NULL) {
176 1ea7ccc6 2021-11-15 thomas 		err = got_error_from_errno2("realpath", path);
177 1ea7ccc6 2021-11-15 thomas 		goto done;
178 1ea7ccc6 2021-11-15 thomas 	}
179 ad10f64e 2023-07-19 thomas 	(*worktree)->meta_dir = meta_dir;
180 ad10f64e 2023-07-19 thomas 	err = read_meta_file(&(*worktree)->repo_path, path_meta,
181 1ea7ccc6 2021-11-15 thomas 	    GOT_WORKTREE_REPOSITORY);
182 1ea7ccc6 2021-11-15 thomas 	if (err)
183 1ea7ccc6 2021-11-15 thomas 		goto done;
184 1ea7ccc6 2021-11-15 thomas 
185 ad10f64e 2023-07-19 thomas 	err = read_meta_file(&(*worktree)->path_prefix, path_meta,
186 1ea7ccc6 2021-11-15 thomas 	    GOT_WORKTREE_PATH_PREFIX);
187 1ea7ccc6 2021-11-15 thomas 	if (err)
188 1ea7ccc6 2021-11-15 thomas 		goto done;
189 1ea7ccc6 2021-11-15 thomas 
190 ad10f64e 2023-07-19 thomas 	err = read_meta_file(&base_commit_id_str, path_meta,
191 1ea7ccc6 2021-11-15 thomas 	    GOT_WORKTREE_BASE_COMMIT);
192 1ea7ccc6 2021-11-15 thomas 	if (err)
193 1ea7ccc6 2021-11-15 thomas 		goto done;
194 1ea7ccc6 2021-11-15 thomas 
195 ad10f64e 2023-07-19 thomas 	err = read_meta_file(&uuidstr, path_meta, GOT_WORKTREE_UUID);
196 1ea7ccc6 2021-11-15 thomas 	if (err)
197 1ea7ccc6 2021-11-15 thomas 		goto done;
198 1ea7ccc6 2021-11-15 thomas 	uuid_from_string(uuidstr, &(*worktree)->uuid, &uuid_status);
199 1ea7ccc6 2021-11-15 thomas 	if (uuid_status != uuid_s_ok) {
200 1ea7ccc6 2021-11-15 thomas 		err = got_error_uuid(uuid_status, "uuid_from_string");
201 1ea7ccc6 2021-11-15 thomas 		goto done;
202 1ea7ccc6 2021-11-15 thomas 	}
203 1ea7ccc6 2021-11-15 thomas 
204 b6652669 2022-06-23 thomas 	err = got_repo_pack_fds_open(&pack_fds);
205 1ea7ccc6 2021-11-15 thomas 	if (err)
206 1ea7ccc6 2021-11-15 thomas 		goto done;
207 1ea7ccc6 2021-11-15 thomas 
208 b6652669 2022-06-23 thomas 	err = got_repo_open(&repo, (*worktree)->repo_path, NULL, pack_fds);
209 7cd52833 2022-06-23 thomas 	if (err)
210 7cd52833 2022-06-23 thomas 		goto done;
211 7cd52833 2022-06-23 thomas 
212 1ea7ccc6 2021-11-15 thomas 	err = got_object_resolve_id_str(&(*worktree)->base_commit_id, repo,
213 1ea7ccc6 2021-11-15 thomas 	    base_commit_id_str);
214 1ea7ccc6 2021-11-15 thomas 	if (err)
215 1ea7ccc6 2021-11-15 thomas 		goto done;
216 1ea7ccc6 2021-11-15 thomas 
217 ad10f64e 2023-07-19 thomas 	err = read_meta_file(&(*worktree)->head_ref_name, path_meta,
218 1ea7ccc6 2021-11-15 thomas 	    GOT_WORKTREE_HEAD_REF);
219 1ea7ccc6 2021-11-15 thomas 	if (err)
220 1ea7ccc6 2021-11-15 thomas 		goto done;
221 1ea7ccc6 2021-11-15 thomas 
222 1ea7ccc6 2021-11-15 thomas 	if (asprintf(&(*worktree)->gotconfig_path, "%s/%s/%s",
223 ad10f64e 2023-07-19 thomas 	    (*worktree)->root_path, (*worktree)->meta_dir,
224 ad10f64e 2023-07-19 thomas 	    GOT_GOTCONFIG_FILENAME) == -1) {
225 1ea7ccc6 2021-11-15 thomas 		err = got_error_from_errno("asprintf");
226 1ea7ccc6 2021-11-15 thomas 		goto done;
227 1ea7ccc6 2021-11-15 thomas 	}
228 1ea7ccc6 2021-11-15 thomas 
229 1ea7ccc6 2021-11-15 thomas 	err = got_gotconfig_read(&(*worktree)->gotconfig,
230 1ea7ccc6 2021-11-15 thomas 	    (*worktree)->gotconfig_path);
231 1b2f32fb 2022-10-27 thomas 	if (err)
232 1b2f32fb 2022-10-27 thomas 		goto done;
233 1ea7ccc6 2021-11-15 thomas 
234 06340621 2021-12-31 thomas 	(*worktree)->root_fd = open((*worktree)->root_path,
235 06340621 2021-12-31 thomas 	    O_DIRECTORY | O_CLOEXEC);
236 1ea7ccc6 2021-11-15 thomas 	if ((*worktree)->root_fd == -1) {
237 1ea7ccc6 2021-11-15 thomas 		err = got_error_from_errno2("open", (*worktree)->root_path);
238 1ea7ccc6 2021-11-15 thomas 		goto done;
239 1ea7ccc6 2021-11-15 thomas 	}
240 1ea7ccc6 2021-11-15 thomas done:
241 1ea7ccc6 2021-11-15 thomas 	if (repo) {
242 1ea7ccc6 2021-11-15 thomas 		const struct got_error *close_err = got_repo_close(repo);
243 1ea7ccc6 2021-11-15 thomas 		if (err == NULL)
244 1ea7ccc6 2021-11-15 thomas 			err = close_err;
245 b6652669 2022-06-23 thomas 	}
246 b6652669 2022-06-23 thomas 	if (pack_fds) {
247 b6652669 2022-06-23 thomas 		const struct got_error *pack_err =
248 b6652669 2022-06-23 thomas 		    got_repo_pack_fds_close(pack_fds);
249 b6652669 2022-06-23 thomas 		if (err == NULL)
250 b6652669 2022-06-23 thomas 			err = pack_err;
251 1ea7ccc6 2021-11-15 thomas 	}
252 ad10f64e 2023-07-19 thomas 	free(path_meta);
253 1ea7ccc6 2021-11-15 thomas 	free(path_lock);
254 1ea7ccc6 2021-11-15 thomas 	free(base_commit_id_str);
255 1ea7ccc6 2021-11-15 thomas 	free(uuidstr);
256 1ea7ccc6 2021-11-15 thomas 	free(formatstr);
257 1ea7ccc6 2021-11-15 thomas 	if (err) {
258 1ea7ccc6 2021-11-15 thomas 		if (fd != -1)
259 1ea7ccc6 2021-11-15 thomas 			close(fd);
260 1ea7ccc6 2021-11-15 thomas 		if (*worktree != NULL)
261 1ea7ccc6 2021-11-15 thomas 			got_worktree_close(*worktree);
262 1ea7ccc6 2021-11-15 thomas 		*worktree = NULL;
263 1ea7ccc6 2021-11-15 thomas 	} else
264 1ea7ccc6 2021-11-15 thomas 		(*worktree)->lockfd = fd;
265 1ea7ccc6 2021-11-15 thomas 
266 1ea7ccc6 2021-11-15 thomas 	return err;
267 1ea7ccc6 2021-11-15 thomas }
268 1ea7ccc6 2021-11-15 thomas 
269 1ea7ccc6 2021-11-15 thomas const struct got_error *
270 ad10f64e 2023-07-19 thomas got_worktree_open(struct got_worktree **worktree, const char *path,
271 ad10f64e 2023-07-19 thomas     const char *meta_dir)
272 1ea7ccc6 2021-11-15 thomas {
273 1ea7ccc6 2021-11-15 thomas 	const struct got_error *err = NULL;
274 1ea7ccc6 2021-11-15 thomas 	char *worktree_path;
275 ad10f64e 2023-07-19 thomas 	const char *meta_dirs[] = {
276 ad10f64e 2023-07-19 thomas 		GOT_WORKTREE_GOT_DIR,
277 ad10f64e 2023-07-19 thomas 		GOT_WORKTREE_CVG_DIR
278 ad10f64e 2023-07-19 thomas 	};
279 ad10f64e 2023-07-19 thomas 	int i;
280 1ea7ccc6 2021-11-15 thomas 
281 1ea7ccc6 2021-11-15 thomas 	worktree_path = strdup(path);
282 1ea7ccc6 2021-11-15 thomas 	if (worktree_path == NULL)
283 1ea7ccc6 2021-11-15 thomas 		return got_error_from_errno("strdup");
284 1ea7ccc6 2021-11-15 thomas 
285 1ea7ccc6 2021-11-15 thomas 	for (;;) {
286 1ea7ccc6 2021-11-15 thomas 		char *parent_path;
287 1ea7ccc6 2021-11-15 thomas 
288 ad10f64e 2023-07-19 thomas 		if (meta_dir == NULL) {
289 ad10f64e 2023-07-19 thomas 			for (i = 0; i < nitems(meta_dirs); i++) {
290 ad10f64e 2023-07-19 thomas 				err = open_worktree(worktree, worktree_path,
291 ad10f64e 2023-07-19 thomas 				    meta_dirs[i]);
292 012b711c 2023-09-05 thomas 				if (err == NULL ||
293 012b711c 2023-09-05 thomas 				    err->code == GOT_ERR_WORKTREE_BUSY)
294 ad10f64e 2023-07-19 thomas 					break;
295 ad10f64e 2023-07-19 thomas 			}
296 ad10f64e 2023-07-19 thomas 		} else
297 ad10f64e 2023-07-19 thomas 			err = open_worktree(worktree, worktree_path, meta_dir);
298 1ea7ccc6 2021-11-15 thomas 		if (err && !(err->code == GOT_ERR_ERRNO && errno == ENOENT)) {
299 1ea7ccc6 2021-11-15 thomas 			free(worktree_path);
300 1ea7ccc6 2021-11-15 thomas 			return err;
301 1ea7ccc6 2021-11-15 thomas 		}
302 1ea7ccc6 2021-11-15 thomas 		if (*worktree) {
303 1ea7ccc6 2021-11-15 thomas 			free(worktree_path);
304 1ea7ccc6 2021-11-15 thomas 			return NULL;
305 1ea7ccc6 2021-11-15 thomas 		}
306 1ea7ccc6 2021-11-15 thomas 		if (worktree_path[0] == '/' && worktree_path[1] == '\0')
307 1ea7ccc6 2021-11-15 thomas 			break;
308 1ea7ccc6 2021-11-15 thomas 		err = got_path_dirname(&parent_path, worktree_path);
309 1ea7ccc6 2021-11-15 thomas 		if (err) {
310 1ea7ccc6 2021-11-15 thomas 			if (err->code != GOT_ERR_BAD_PATH) {
311 1ea7ccc6 2021-11-15 thomas 				free(worktree_path);
312 1ea7ccc6 2021-11-15 thomas 				return err;
313 1ea7ccc6 2021-11-15 thomas 			}
314 1ea7ccc6 2021-11-15 thomas 			break;
315 1ea7ccc6 2021-11-15 thomas 		}
316 1ea7ccc6 2021-11-15 thomas 		free(worktree_path);
317 1ea7ccc6 2021-11-15 thomas 		worktree_path = parent_path;
318 1ea7ccc6 2021-11-15 thomas 	}
319 1ea7ccc6 2021-11-15 thomas 
320 1ea7ccc6 2021-11-15 thomas 	free(worktree_path);
321 1ea7ccc6 2021-11-15 thomas 	return got_error(GOT_ERR_NOT_WORKTREE);
322 1ea7ccc6 2021-11-15 thomas }
323 1ea7ccc6 2021-11-15 thomas 
324 1ea7ccc6 2021-11-15 thomas const struct got_error *
325 1ea7ccc6 2021-11-15 thomas got_worktree_close(struct got_worktree *worktree)
326 1ea7ccc6 2021-11-15 thomas {
327 1ea7ccc6 2021-11-15 thomas 	const struct got_error *err = NULL;
328 1ea7ccc6 2021-11-15 thomas 
329 1ea7ccc6 2021-11-15 thomas 	if (worktree->lockfd != -1) {
330 1ea7ccc6 2021-11-15 thomas 		if (close(worktree->lockfd) == -1)
331 1ea7ccc6 2021-11-15 thomas 			err = got_error_from_errno2("close",
332 1ea7ccc6 2021-11-15 thomas 			    got_worktree_get_root_path(worktree));
333 1ea7ccc6 2021-11-15 thomas 	}
334 1ea7ccc6 2021-11-15 thomas 	if (close(worktree->root_fd) == -1 && err == NULL)
335 1ea7ccc6 2021-11-15 thomas 		err = got_error_from_errno2("close",
336 1ea7ccc6 2021-11-15 thomas 		    got_worktree_get_root_path(worktree));
337 1ea7ccc6 2021-11-15 thomas 	free(worktree->repo_path);
338 1ea7ccc6 2021-11-15 thomas 	free(worktree->path_prefix);
339 1ea7ccc6 2021-11-15 thomas 	free(worktree->base_commit_id);
340 1ea7ccc6 2021-11-15 thomas 	free(worktree->head_ref_name);
341 1ea7ccc6 2021-11-15 thomas 	free(worktree->root_path);
342 1ea7ccc6 2021-11-15 thomas 	free(worktree->gotconfig_path);
343 1ea7ccc6 2021-11-15 thomas 	got_gotconfig_free(worktree->gotconfig);
344 1ea7ccc6 2021-11-15 thomas 	free(worktree);
345 1ea7ccc6 2021-11-15 thomas 	return err;
346 1ea7ccc6 2021-11-15 thomas }
347 1ea7ccc6 2021-11-15 thomas 
348 1ea7ccc6 2021-11-15 thomas const char *
349 1ea7ccc6 2021-11-15 thomas got_worktree_get_root_path(struct got_worktree *worktree)
350 1ea7ccc6 2021-11-15 thomas {
351 1ea7ccc6 2021-11-15 thomas 	return worktree->root_path;
352 1ea7ccc6 2021-11-15 thomas }
353 1ea7ccc6 2021-11-15 thomas 
354 1ea7ccc6 2021-11-15 thomas const char *
355 1ea7ccc6 2021-11-15 thomas got_worktree_get_repo_path(struct got_worktree *worktree)
356 1ea7ccc6 2021-11-15 thomas {
357 1ea7ccc6 2021-11-15 thomas 	return worktree->repo_path;
358 1ea7ccc6 2021-11-15 thomas }
359 1ea7ccc6 2021-11-15 thomas 
360 1ea7ccc6 2021-11-15 thomas const char *
361 1ea7ccc6 2021-11-15 thomas got_worktree_get_path_prefix(struct got_worktree *worktree)
362 1ea7ccc6 2021-11-15 thomas {
363 1ea7ccc6 2021-11-15 thomas 	return worktree->path_prefix;
364 1ea7ccc6 2021-11-15 thomas }