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 1ea7ccc6 2021-11-15 thomas 		goto done;
 81 1ea7ccc6 2021-11-15 thomas 	}
 82 1ea7ccc6 2021-11-15 thomas 	*content = calloc(1, sb.st_size);
 83 1ea7ccc6 2021-11-15 thomas 	if (*content == NULL) {
 84 1ea7ccc6 2021-11-15 thomas 		err = got_error_from_errno("calloc");
 85 1ea7ccc6 2021-11-15 thomas 		goto done;
 86 1ea7ccc6 2021-11-15 thomas 	}
 87 1ea7ccc6 2021-11-15 thomas 
 88 1ea7ccc6 2021-11-15 thomas 	n = read(fd, *content, sb.st_size);
 89 1ea7ccc6 2021-11-15 thomas 	if (n != sb.st_size) {
 90 1ea7ccc6 2021-11-15 thomas 		err = (n == -1 ? got_error_from_errno2("read", path) :
 91 1ea7ccc6 2021-11-15 thomas 		    got_error_path(path, GOT_ERR_WORKTREE_META));
 92 1ea7ccc6 2021-11-15 thomas 		goto done;
 93 1ea7ccc6 2021-11-15 thomas 	}
 94 1ea7ccc6 2021-11-15 thomas 	if ((*content)[sb.st_size - 1] != '\n') {
 95 1ea7ccc6 2021-11-15 thomas 		err = 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 	(*content)[sb.st_size - 1] = '\0';
 99 1ea7ccc6 2021-11-15 thomas 
100 1ea7ccc6 2021-11-15 thomas done:
101 1ea7ccc6 2021-11-15 thomas 	if (fd != -1 && close(fd) == -1 && err == NULL)
102 1ea7ccc6 2021-11-15 thomas 		err = got_error_from_errno2("close", path_got);
103 1ea7ccc6 2021-11-15 thomas 	free(path);
104 1ea7ccc6 2021-11-15 thomas 	if (err) {
105 1ea7ccc6 2021-11-15 thomas 		free(*content);
106 1ea7ccc6 2021-11-15 thomas 		*content = NULL;
107 1ea7ccc6 2021-11-15 thomas 	}
108 1ea7ccc6 2021-11-15 thomas 	return err;
109 1ea7ccc6 2021-11-15 thomas }
110 1ea7ccc6 2021-11-15 thomas 
111 1ea7ccc6 2021-11-15 thomas static const struct got_error *
112 ad10f64e 2023-07-19 thomas open_worktree(struct got_worktree **worktree, const char *path,
113 ad10f64e 2023-07-19 thomas     const char *meta_dir)
114 1ea7ccc6 2021-11-15 thomas {
115 1ea7ccc6 2021-11-15 thomas 	const struct got_error *err = NULL;
116 ad10f64e 2023-07-19 thomas 	char *path_meta;
117 1ea7ccc6 2021-11-15 thomas 	char *formatstr = NULL;
118 1ea7ccc6 2021-11-15 thomas 	char *uuidstr = NULL;
119 1ea7ccc6 2021-11-15 thomas 	char *path_lock = NULL;
120 1ea7ccc6 2021-11-15 thomas 	char *base_commit_id_str = NULL;
121 1ea7ccc6 2021-11-15 thomas 	int version, fd = -1;
122 1ea7ccc6 2021-11-15 thomas 	const char *errstr;
123 1ea7ccc6 2021-11-15 thomas 	struct got_repository *repo = NULL;
124 b6652669 2022-06-23 thomas 	int *pack_fds = NULL;
125 1ea7ccc6 2021-11-15 thomas 	uint32_t uuid_status;
126 1ea7ccc6 2021-11-15 thomas 
127 1ea7ccc6 2021-11-15 thomas 	*worktree = NULL;
128 1ea7ccc6 2021-11-15 thomas 
129 ad10f64e 2023-07-19 thomas 	if (asprintf(&path_meta, "%s/%s", path, meta_dir) == -1) {
130 1ea7ccc6 2021-11-15 thomas 		err = got_error_from_errno("asprintf");
131 ad10f64e 2023-07-19 thomas 		path_meta = NULL;
132 1ea7ccc6 2021-11-15 thomas 		goto done;
133 1ea7ccc6 2021-11-15 thomas 	}
134 1ea7ccc6 2021-11-15 thomas 
135 ad10f64e 2023-07-19 thomas 	if (asprintf(&path_lock, "%s/%s", path_meta, GOT_WORKTREE_LOCK) == -1) {
136 1ea7ccc6 2021-11-15 thomas 		err = got_error_from_errno("asprintf");
137 1ea7ccc6 2021-11-15 thomas 		path_lock = NULL;
138 1ea7ccc6 2021-11-15 thomas 		goto done;
139 1ea7ccc6 2021-11-15 thomas 	}
140 1ea7ccc6 2021-11-15 thomas 
141 06340621 2021-12-31 thomas 	fd = open(path_lock, O_RDWR | O_EXLOCK | O_NONBLOCK | O_CLOEXEC);
142 1ea7ccc6 2021-11-15 thomas 	if (fd == -1) {
143 1ea7ccc6 2021-11-15 thomas 		err = (errno == EWOULDBLOCK ? got_error(GOT_ERR_WORKTREE_BUSY)
144 1ea7ccc6 2021-11-15 thomas 		    : got_error_from_errno2("open", path_lock));
145 1ea7ccc6 2021-11-15 thomas 		goto done;
146 1ea7ccc6 2021-11-15 thomas 	}
147 1ea7ccc6 2021-11-15 thomas 
148 ad10f64e 2023-07-19 thomas 	err = read_meta_file(&formatstr, path_meta, GOT_WORKTREE_FORMAT);
149 1ea7ccc6 2021-11-15 thomas 	if (err)
150 1ea7ccc6 2021-11-15 thomas 		goto done;
151 1ea7ccc6 2021-11-15 thomas 
152 1ea7ccc6 2021-11-15 thomas 	version = strtonum(formatstr, 1, INT_MAX, &errstr);
153 1ea7ccc6 2021-11-15 thomas 	if (errstr) {
154 1ea7ccc6 2021-11-15 thomas 		err = got_error_msg(GOT_ERR_WORKTREE_META,
155 1ea7ccc6 2021-11-15 thomas 		    "could not parse work tree format version number");
156 1ea7ccc6 2021-11-15 thomas 		goto done;
157 1ea7ccc6 2021-11-15 thomas 	}
158 1ea7ccc6 2021-11-15 thomas 	if (version != GOT_WORKTREE_FORMAT_VERSION) {
159 1ea7ccc6 2021-11-15 thomas 		err = got_error(GOT_ERR_WORKTREE_VERS);
160 1ea7ccc6 2021-11-15 thomas 		goto done;
161 1ea7ccc6 2021-11-15 thomas 	}
162 1ea7ccc6 2021-11-15 thomas 
163 1ea7ccc6 2021-11-15 thomas 	*worktree = calloc(1, sizeof(**worktree));
164 1ea7ccc6 2021-11-15 thomas 	if (*worktree == NULL) {
165 1ea7ccc6 2021-11-15 thomas 		err = got_error_from_errno("calloc");
166 1ea7ccc6 2021-11-15 thomas 		goto done;
167 1ea7ccc6 2021-11-15 thomas 	}
168 1ea7ccc6 2021-11-15 thomas 	(*worktree)->lockfd = -1;
169 1ea7ccc6 2021-11-15 thomas 
170 1ea7ccc6 2021-11-15 thomas 	(*worktree)->root_path = realpath(path, NULL);
171 1ea7ccc6 2021-11-15 thomas 	if ((*worktree)->root_path == NULL) {
172 1ea7ccc6 2021-11-15 thomas 		err = got_error_from_errno2("realpath", path);
173 1ea7ccc6 2021-11-15 thomas 		goto done;
174 1ea7ccc6 2021-11-15 thomas 	}
175 ad10f64e 2023-07-19 thomas 	(*worktree)->meta_dir = meta_dir;
176 ad10f64e 2023-07-19 thomas 	err = read_meta_file(&(*worktree)->repo_path, path_meta,
177 1ea7ccc6 2021-11-15 thomas 	    GOT_WORKTREE_REPOSITORY);
178 1ea7ccc6 2021-11-15 thomas 	if (err)
179 1ea7ccc6 2021-11-15 thomas 		goto done;
180 1ea7ccc6 2021-11-15 thomas 
181 ad10f64e 2023-07-19 thomas 	err = read_meta_file(&(*worktree)->path_prefix, path_meta,
182 1ea7ccc6 2021-11-15 thomas 	    GOT_WORKTREE_PATH_PREFIX);
183 1ea7ccc6 2021-11-15 thomas 	if (err)
184 1ea7ccc6 2021-11-15 thomas 		goto done;
185 1ea7ccc6 2021-11-15 thomas 
186 ad10f64e 2023-07-19 thomas 	err = read_meta_file(&base_commit_id_str, path_meta,
187 1ea7ccc6 2021-11-15 thomas 	    GOT_WORKTREE_BASE_COMMIT);
188 1ea7ccc6 2021-11-15 thomas 	if (err)
189 1ea7ccc6 2021-11-15 thomas 		goto done;
190 1ea7ccc6 2021-11-15 thomas 
191 ad10f64e 2023-07-19 thomas 	err = read_meta_file(&uuidstr, path_meta, GOT_WORKTREE_UUID);
192 1ea7ccc6 2021-11-15 thomas 	if (err)
193 1ea7ccc6 2021-11-15 thomas 		goto done;
194 1ea7ccc6 2021-11-15 thomas 	uuid_from_string(uuidstr, &(*worktree)->uuid, &uuid_status);
195 1ea7ccc6 2021-11-15 thomas 	if (uuid_status != uuid_s_ok) {
196 1ea7ccc6 2021-11-15 thomas 		err = got_error_uuid(uuid_status, "uuid_from_string");
197 1ea7ccc6 2021-11-15 thomas 		goto done;
198 1ea7ccc6 2021-11-15 thomas 	}
199 1ea7ccc6 2021-11-15 thomas 
200 b6652669 2022-06-23 thomas 	err = got_repo_pack_fds_open(&pack_fds);
201 1ea7ccc6 2021-11-15 thomas 	if (err)
202 1ea7ccc6 2021-11-15 thomas 		goto done;
203 1ea7ccc6 2021-11-15 thomas 
204 b6652669 2022-06-23 thomas 	err = got_repo_open(&repo, (*worktree)->repo_path, NULL, pack_fds);
205 7cd52833 2022-06-23 thomas 	if (err)
206 7cd52833 2022-06-23 thomas 		goto done;
207 7cd52833 2022-06-23 thomas 
208 1ea7ccc6 2021-11-15 thomas 	err = got_object_resolve_id_str(&(*worktree)->base_commit_id, repo,
209 1ea7ccc6 2021-11-15 thomas 	    base_commit_id_str);
210 1ea7ccc6 2021-11-15 thomas 	if (err)
211 1ea7ccc6 2021-11-15 thomas 		goto done;
212 1ea7ccc6 2021-11-15 thomas 
213 ad10f64e 2023-07-19 thomas 	err = read_meta_file(&(*worktree)->head_ref_name, path_meta,
214 1ea7ccc6 2021-11-15 thomas 	    GOT_WORKTREE_HEAD_REF);
215 1ea7ccc6 2021-11-15 thomas 	if (err)
216 1ea7ccc6 2021-11-15 thomas 		goto done;
217 1ea7ccc6 2021-11-15 thomas 
218 1ea7ccc6 2021-11-15 thomas 	if (asprintf(&(*worktree)->gotconfig_path, "%s/%s/%s",
219 ad10f64e 2023-07-19 thomas 	    (*worktree)->root_path, (*worktree)->meta_dir,
220 ad10f64e 2023-07-19 thomas 	    GOT_GOTCONFIG_FILENAME) == -1) {
221 1ea7ccc6 2021-11-15 thomas 		err = got_error_from_errno("asprintf");
222 1ea7ccc6 2021-11-15 thomas 		goto done;
223 1ea7ccc6 2021-11-15 thomas 	}
224 1ea7ccc6 2021-11-15 thomas 
225 1ea7ccc6 2021-11-15 thomas 	err = got_gotconfig_read(&(*worktree)->gotconfig,
226 1ea7ccc6 2021-11-15 thomas 	    (*worktree)->gotconfig_path);
227 1b2f32fb 2022-10-27 thomas 	if (err)
228 1b2f32fb 2022-10-27 thomas 		goto done;
229 1ea7ccc6 2021-11-15 thomas 
230 06340621 2021-12-31 thomas 	(*worktree)->root_fd = open((*worktree)->root_path,
231 06340621 2021-12-31 thomas 	    O_DIRECTORY | O_CLOEXEC);
232 1ea7ccc6 2021-11-15 thomas 	if ((*worktree)->root_fd == -1) {
233 1ea7ccc6 2021-11-15 thomas 		err = got_error_from_errno2("open", (*worktree)->root_path);
234 1ea7ccc6 2021-11-15 thomas 		goto done;
235 1ea7ccc6 2021-11-15 thomas 	}
236 1ea7ccc6 2021-11-15 thomas done:
237 1ea7ccc6 2021-11-15 thomas 	if (repo) {
238 1ea7ccc6 2021-11-15 thomas 		const struct got_error *close_err = got_repo_close(repo);
239 1ea7ccc6 2021-11-15 thomas 		if (err == NULL)
240 1ea7ccc6 2021-11-15 thomas 			err = close_err;
241 b6652669 2022-06-23 thomas 	}
242 b6652669 2022-06-23 thomas 	if (pack_fds) {
243 b6652669 2022-06-23 thomas 		const struct got_error *pack_err =
244 b6652669 2022-06-23 thomas 		    got_repo_pack_fds_close(pack_fds);
245 b6652669 2022-06-23 thomas 		if (err == NULL)
246 b6652669 2022-06-23 thomas 			err = pack_err;
247 1ea7ccc6 2021-11-15 thomas 	}
248 ad10f64e 2023-07-19 thomas 	free(path_meta);
249 1ea7ccc6 2021-11-15 thomas 	free(path_lock);
250 1ea7ccc6 2021-11-15 thomas 	free(base_commit_id_str);
251 1ea7ccc6 2021-11-15 thomas 	free(uuidstr);
252 1ea7ccc6 2021-11-15 thomas 	free(formatstr);
253 1ea7ccc6 2021-11-15 thomas 	if (err) {
254 1ea7ccc6 2021-11-15 thomas 		if (fd != -1)
255 1ea7ccc6 2021-11-15 thomas 			close(fd);
256 1ea7ccc6 2021-11-15 thomas 		if (*worktree != NULL)
257 1ea7ccc6 2021-11-15 thomas 			got_worktree_close(*worktree);
258 1ea7ccc6 2021-11-15 thomas 		*worktree = NULL;
259 1ea7ccc6 2021-11-15 thomas 	} else
260 1ea7ccc6 2021-11-15 thomas 		(*worktree)->lockfd = fd;
261 1ea7ccc6 2021-11-15 thomas 
262 1ea7ccc6 2021-11-15 thomas 	return err;
263 1ea7ccc6 2021-11-15 thomas }
264 1ea7ccc6 2021-11-15 thomas 
265 1ea7ccc6 2021-11-15 thomas const struct got_error *
266 ad10f64e 2023-07-19 thomas got_worktree_open(struct got_worktree **worktree, const char *path,
267 ad10f64e 2023-07-19 thomas     const char *meta_dir)
268 1ea7ccc6 2021-11-15 thomas {
269 1ea7ccc6 2021-11-15 thomas 	const struct got_error *err = NULL;
270 1ea7ccc6 2021-11-15 thomas 	char *worktree_path;
271 ad10f64e 2023-07-19 thomas 	const char *meta_dirs[] = {
272 ad10f64e 2023-07-19 thomas 		GOT_WORKTREE_GOT_DIR,
273 ad10f64e 2023-07-19 thomas 		GOT_WORKTREE_CVG_DIR
274 ad10f64e 2023-07-19 thomas 	};
275 ad10f64e 2023-07-19 thomas 	int i;
276 1ea7ccc6 2021-11-15 thomas 
277 1ea7ccc6 2021-11-15 thomas 	worktree_path = strdup(path);
278 1ea7ccc6 2021-11-15 thomas 	if (worktree_path == NULL)
279 1ea7ccc6 2021-11-15 thomas 		return got_error_from_errno("strdup");
280 1ea7ccc6 2021-11-15 thomas 
281 1ea7ccc6 2021-11-15 thomas 	for (;;) {
282 1ea7ccc6 2021-11-15 thomas 		char *parent_path;
283 1ea7ccc6 2021-11-15 thomas 
284 ad10f64e 2023-07-19 thomas 		if (meta_dir == NULL) {
285 ad10f64e 2023-07-19 thomas 			for (i = 0; i < nitems(meta_dirs); i++) {
286 ad10f64e 2023-07-19 thomas 				err = open_worktree(worktree, worktree_path,
287 ad10f64e 2023-07-19 thomas 				    meta_dirs[i]);
288 012b711c 2023-09-05 thomas 				if (err == NULL ||
289 012b711c 2023-09-05 thomas 				    err->code == GOT_ERR_WORKTREE_BUSY)
290 ad10f64e 2023-07-19 thomas 					break;
291 ad10f64e 2023-07-19 thomas 			}
292 ad10f64e 2023-07-19 thomas 		} else
293 ad10f64e 2023-07-19 thomas 			err = open_worktree(worktree, worktree_path, meta_dir);
294 1ea7ccc6 2021-11-15 thomas 		if (err && !(err->code == GOT_ERR_ERRNO && errno == ENOENT)) {
295 1ea7ccc6 2021-11-15 thomas 			free(worktree_path);
296 1ea7ccc6 2021-11-15 thomas 			return err;
297 1ea7ccc6 2021-11-15 thomas 		}
298 1ea7ccc6 2021-11-15 thomas 		if (*worktree) {
299 1ea7ccc6 2021-11-15 thomas 			free(worktree_path);
300 1ea7ccc6 2021-11-15 thomas 			return NULL;
301 1ea7ccc6 2021-11-15 thomas 		}
302 1ea7ccc6 2021-11-15 thomas 		if (worktree_path[0] == '/' && worktree_path[1] == '\0')
303 1ea7ccc6 2021-11-15 thomas 			break;
304 1ea7ccc6 2021-11-15 thomas 		err = got_path_dirname(&parent_path, worktree_path);
305 1ea7ccc6 2021-11-15 thomas 		if (err) {
306 1ea7ccc6 2021-11-15 thomas 			if (err->code != GOT_ERR_BAD_PATH) {
307 1ea7ccc6 2021-11-15 thomas 				free(worktree_path);
308 1ea7ccc6 2021-11-15 thomas 				return err;
309 1ea7ccc6 2021-11-15 thomas 			}
310 1ea7ccc6 2021-11-15 thomas 			break;
311 1ea7ccc6 2021-11-15 thomas 		}
312 1ea7ccc6 2021-11-15 thomas 		free(worktree_path);
313 1ea7ccc6 2021-11-15 thomas 		worktree_path = parent_path;
314 1ea7ccc6 2021-11-15 thomas 	}
315 1ea7ccc6 2021-11-15 thomas 
316 1ea7ccc6 2021-11-15 thomas 	free(worktree_path);
317 1ea7ccc6 2021-11-15 thomas 	return got_error(GOT_ERR_NOT_WORKTREE);
318 1ea7ccc6 2021-11-15 thomas }
319 1ea7ccc6 2021-11-15 thomas 
320 1ea7ccc6 2021-11-15 thomas const struct got_error *
321 1ea7ccc6 2021-11-15 thomas got_worktree_close(struct got_worktree *worktree)
322 1ea7ccc6 2021-11-15 thomas {
323 1ea7ccc6 2021-11-15 thomas 	const struct got_error *err = NULL;
324 1ea7ccc6 2021-11-15 thomas 
325 1ea7ccc6 2021-11-15 thomas 	if (worktree->lockfd != -1) {
326 1ea7ccc6 2021-11-15 thomas 		if (close(worktree->lockfd) == -1)
327 1ea7ccc6 2021-11-15 thomas 			err = got_error_from_errno2("close",
328 1ea7ccc6 2021-11-15 thomas 			    got_worktree_get_root_path(worktree));
329 1ea7ccc6 2021-11-15 thomas 	}
330 1ea7ccc6 2021-11-15 thomas 	if (close(worktree->root_fd) == -1 && err == NULL)
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 	free(worktree->repo_path);
334 1ea7ccc6 2021-11-15 thomas 	free(worktree->path_prefix);
335 1ea7ccc6 2021-11-15 thomas 	free(worktree->base_commit_id);
336 1ea7ccc6 2021-11-15 thomas 	free(worktree->head_ref_name);
337 1ea7ccc6 2021-11-15 thomas 	free(worktree->root_path);
338 1ea7ccc6 2021-11-15 thomas 	free(worktree->gotconfig_path);
339 1ea7ccc6 2021-11-15 thomas 	got_gotconfig_free(worktree->gotconfig);
340 1ea7ccc6 2021-11-15 thomas 	free(worktree);
341 1ea7ccc6 2021-11-15 thomas 	return err;
342 1ea7ccc6 2021-11-15 thomas }
343 1ea7ccc6 2021-11-15 thomas 
344 1ea7ccc6 2021-11-15 thomas const char *
345 1ea7ccc6 2021-11-15 thomas got_worktree_get_root_path(struct got_worktree *worktree)
346 1ea7ccc6 2021-11-15 thomas {
347 1ea7ccc6 2021-11-15 thomas 	return worktree->root_path;
348 1ea7ccc6 2021-11-15 thomas }
349 1ea7ccc6 2021-11-15 thomas 
350 1ea7ccc6 2021-11-15 thomas const char *
351 1ea7ccc6 2021-11-15 thomas got_worktree_get_repo_path(struct got_worktree *worktree)
352 1ea7ccc6 2021-11-15 thomas {
353 1ea7ccc6 2021-11-15 thomas 	return worktree->repo_path;
354 1ea7ccc6 2021-11-15 thomas }
355 1ea7ccc6 2021-11-15 thomas 
356 1ea7ccc6 2021-11-15 thomas const char *
357 1ea7ccc6 2021-11-15 thomas got_worktree_get_path_prefix(struct got_worktree *worktree)
358 1ea7ccc6 2021-11-15 thomas {
359 1ea7ccc6 2021-11-15 thomas 	return worktree->path_prefix;
360 1ea7ccc6 2021-11-15 thomas }