source src/config_file.c
Line | Flow | Count | Block(s) | Source |
---|---|---|---|---|
1 | - | /* | ||
2 | - | * Copyright (C) the libgit2 contributors. All rights reserved. | ||
3 | - | * | ||
4 | - | * This file is part of libgit2, distributed under the GNU GPL v2 with | ||
5 | - | * a Linking Exception. For full terms see the included COPYING file. | ||
6 | - | */ | ||
7 | - | |||
8 | - | #include "config.h" | ||
9 | - | |||
10 | - | #include "git2/config.h" | ||
11 | - | #include "git2/sys/config.h" | ||
12 | - | |||
13 | - | #include "array.h" | ||
14 | - | #include "buffer.h" | ||
15 | - | #include "config_backend.h" | ||
16 | - | #include "config_entries.h" | ||
17 | - | #include "config_parse.h" | ||
18 | - | #include "filebuf.h" | ||
19 | - | #include "regexp.h" | ||
20 | - | #include "sysdir.h" | ||
21 | - | #include "wildmatch.h" | ||
22 | - | |||
23 | - | /* Max depth for [include] directives */ | ||
24 | - | #define MAX_INCLUDE_DEPTH 10 | ||
25 | - | |||
26 | - | typedef struct config_file { | ||
27 | - | git_futils_filestamp stamp; | ||
28 | - | git_oid checksum; | ||
29 | - | char *path; | ||
30 | - | git_array_t(struct config_file) includes; | ||
31 | - | } config_file; | ||
32 | - | |||
33 | - | typedef struct { | ||
34 | - | git_config_backend parent; | ||
35 | - | git_mutex values_mutex; | ||
36 | - | git_config_entries *entries; | ||
37 | - | const git_repository *repo; | ||
38 | - | git_config_level_t level; | ||
39 | - | |||
40 | - | git_array_t(git_config_parser) readers; | ||
41 | - | |||
42 | - | bool locked; | ||
43 | - | git_filebuf locked_buf; | ||
44 | - | git_buf locked_content; | ||
45 | - | |||
46 | - | config_file file; | ||
47 | - | } config_file_backend; | ||
48 | - | |||
49 | - | typedef struct { | ||
50 | - | const git_repository *repo; | ||
51 | - | config_file *file; | ||
52 | - | git_config_entries *entries; | ||
53 | - | git_config_level_t level; | ||
54 | - | unsigned int depth; | ||
55 | - | } config_file_parse_data; | ||
56 | - | |||
57 | - | static int config_file_read(git_config_entries *entries, const git_repository *repo, config_file *file, git_config_level_t level, int depth); | ||
58 | - | static int config_file_read_buffer(git_config_entries *entries, const git_repository *repo, config_file *file, git_config_level_t level, int depth, const char *buf, size_t buflen); | ||
59 | - | static int config_file_write(config_file_backend *cfg, const char *orig_key, const char *key, const git_regexp *preg, const char *value); | ||
60 | - | static char *escape_value(const char *ptr); | ||
61 | - | |||
62 | - | /** | ||
63 | - | * Take the current values map from the backend and increase its | ||
64 | - | * refcount. This is its own function to make sure we use the mutex to | ||
65 | - | * avoid the map pointer from changing under us. | ||
66 | - | */ | ||
67 | 123564 | 2 | static int config_file_entries_take(git_config_entries **out, config_file_backend *b) | |
68 | - | { | ||
69 | - | int error; | ||
70 | - | |||
71 | 123654 | 2,3 | if ((error = git_mutex_lock(&b->values_mutex)) < 0) { | |
72 | ##### | 4 | git_error_set(GIT_ERROR_OS, "failed to lock config backend"); | |
73 | ##### | 5 | return error; | |
74 | - | } | ||
75 | - | |||
76 | 123654 | 6 | git_config_entries_incref(b->entries); | |
77 | 123655 | 7 | *out = b->entries; | |
78 | - | |||
79 | 123655 | 7 | git_mutex_unlock(&b->values_mutex); | |
80 | - | |||
81 | 123659 | 8 | return 0; | |
82 | - | } | ||
83 | - | |||
84 | 15546 | 2 | static void config_file_clear(config_file *file) | |
85 | - | { | ||
86 | - | config_file *include; | ||
87 | - | uint32_t i; | ||
88 | - | |||
89 | 15546 | 2 | if (file == NULL) | |
90 | 15544 | 3,11 | return; | |
91 | - | |||
92 | 15694 | 4,6-8 | git_array_foreach(file->includes, i, include) { | |
93 | 148 | 5 | config_file_clear(include); | |
94 | - | } | ||
95 | 15546 | 9 | git_array_clear(file->includes); | |
96 | - | |||
97 | 15545 | 10 | git__free(file->path); | |
98 | - | } | ||
99 | - | |||
100 | - | 2 | suppressed: function cannot be solved config_file_open (automatic due to inconsistent arc counts in .gcda files)static int config_file_open(git_config_backend *cfg, git_config_level_t level, const git_repository *repo) | |
101 | - | { | ||
102 | - | 2 | suppressed: function cannot be solved config_file_open (automatic due to inconsistent arc counts in .gcda files) config_file_backend *b = GIT_CONTAINER_OF(cfg, config_file_backend, parent); | |
103 | - | int res; | ||
104 | - | |||
105 | - | 2 | suppressed: function cannot be solved config_file_open (automatic due to inconsistent arc counts in .gcda files) b->level = level; | |
106 | - | 2 | suppressed: function cannot be solved config_file_open (automatic due to inconsistent arc counts in .gcda files) b->repo = repo; | |
107 | - | |||
108 | - | 2,3 | suppressed: function cannot be solved config_file_open (automatic due to inconsistent arc counts in .gcda files) if ((res = git_config_entries_new(&b->entries)) < 0) | |
109 | - | 4 | suppressed: function cannot be solved config_file_open (automatic due to inconsistent arc counts in .gcda files) return res; | |
110 | - | |||
111 | - | 5,6 | suppressed: function cannot be solved config_file_open (automatic due to inconsistent arc counts in .gcda files) if (!git_path_exists(b->file.path)) | |
112 | - | 7 | suppressed: function cannot be solved config_file_open (automatic due to inconsistent arc counts in .gcda files) return 0; | |
113 | - | |||
114 | - | /* | ||
115 | - | * git silently ignores configuration files that are not | ||
116 | - | * readable. We emulate that behavior. This is particularly | ||
117 | - | * important for sandboxed applications on macOS where the | ||
118 | - | * git configuration files may not be readable. | ||
119 | - | */ | ||
120 | - | 8,9 | suppressed: function cannot be solved config_file_open (automatic due to inconsistent arc counts in .gcda files) if (p_access(b->file.path, R_OK) < 0) | |
121 | - | 10 | suppressed: function cannot be solved config_file_open (automatic due to inconsistent arc counts in .gcda files) return GIT_ENOTFOUND; | |
122 | - | |||
123 | - | 11-13 | suppressed: function cannot be solved config_file_open (automatic due to inconsistent arc counts in .gcda files) if (res < 0 || (res = config_file_read(b->entries, repo, &b->file, level, 0)) < 0) { | |
124 | - | 14 | suppressed: function cannot be solved config_file_open (automatic due to inconsistent arc counts in .gcda files) git_config_entries_free(b->entries); | |
125 | - | 15 | suppressed: function cannot be solved config_file_open (automatic due to inconsistent arc counts in .gcda files) b->entries = NULL; | |
126 | - | } | ||
127 | - | |||
128 | - | 16 | suppressed: function cannot be solved config_file_open (automatic due to inconsistent arc counts in .gcda files) return res; | |
129 | - | } | ||
130 | - | |||
131 | 113215 | 2 | static int config_file_is_modified(int *modified, config_file *file) | |
132 | - | { | ||
133 | - | config_file *include; | ||
134 | 113215 | 2 | git_buf buf = GIT_BUF_INIT; | |
135 | - | git_oid hash; | ||
136 | - | uint32_t i; | ||
137 | 113215 | 2 | int error = 0; | |
138 | - | |||
139 | 113215 | 2 | *modified = 0; | |
140 | - | |||
141 | 113264 | 2,3 | if (!git_futils_filestamp_check(&file->stamp, file->path)) | |
142 | 86747 | 4 | goto check_includes; | |
143 | - | |||
144 | 26517 | 5,6 | if ((error = git_futils_readbuffer(&buf, file->path)) < 0) | |
145 | 24684 | 7 | goto out; | |
146 | - | |||
147 | 1831 | 8,9 | if ((error = git_hash_buf(&hash, buf.ptr, buf.size)) < 0) | |
148 | ##### | 10 | goto out; | |
149 | - | |||
150 | 1831 | 11,12 | if (!git_oid_equal(&hash, &file->checksum)) { | |
151 | 1830 | 13 | *modified = 1; | |
152 | 1830 | 13 | goto out; | |
153 | - | } | ||
154 | - | |||
155 | - | check_includes: | ||
156 | 87012 | 14,18-20 | git_array_foreach(file->includes, i, include) { | |
157 | 268 | 15-17 | if ((error = config_file_is_modified(modified, include)) < 0 || *modified) | |
158 | - | goto out; | ||
159 | - | } | ||
160 | - | |||
161 | - | out: | ||
162 | 113262 | 21 | git_buf_dispose(&buf); | |
163 | - | |||
164 | 113229 | 22 | return error; | |
165 | - | } | ||
166 | - | |||
167 | 6491 | 2 | static int config_file_set_entries(git_config_backend *cfg, git_config_entries *entries) | |
168 | - | { | ||
169 | 6491 | 2 | config_file_backend *b = GIT_CONTAINER_OF(cfg, config_file_backend, parent); | |
170 | 6491 | 2 | git_config_entries *old = NULL; | |
171 | - | config_file *include; | ||
172 | - | int error; | ||
173 | - | uint32_t i; | ||
174 | - | |||
175 | 6491 | 2 | if (b->parent.readonly) { | |
176 | ##### | 3 | git_error_set(GIT_ERROR_CONFIG, "this backend is read-only"); | |
177 | ##### | 4 | return -1; | |
178 | - | } | ||
179 | - | |||
180 | 6498 | 5,7-9 | git_array_foreach(b->file.includes, i, include) | |
181 | 7 | 6 | config_file_clear(include); | |
182 | 6491 | 10 | git_array_clear(b->file.includes); | |
183 | - | |||
184 | 6491 | 11,12 | if ((error = git_mutex_lock(&b->values_mutex)) < 0) { | |
185 | ##### | 13 | git_error_set(GIT_ERROR_OS, "failed to lock config backend"); | |
186 | ##### | 14 | goto out; | |
187 | - | } | ||
188 | - | |||
189 | 6491 | 15 | old = b->entries; | |
190 | 6491 | 15 | b->entries = entries; | |
191 | - | |||
192 | 6491 | 15 | git_mutex_unlock(&b->values_mutex); | |
193 | - | |||
194 | - | out: | ||
195 | 6491 | 16 | git_config_entries_free(old); | |
196 | 6491 | 17 | return error; | |
197 | - | } | ||
198 | - | |||
199 | 4661 | 2 | static int config_file_refresh_from_buffer(git_config_backend *cfg, const char *buf, size_t buflen) | |
200 | - | { | ||
201 | 4661 | 2 | config_file_backend *b = GIT_CONTAINER_OF(cfg, config_file_backend, parent); | |
202 | 4661 | 2 | git_config_entries *entries = NULL; | |
203 | - | int error; | ||
204 | - | |||
205 | 4661 | 2-5 | if ((error = git_config_entries_new(&entries)) < 0 || | |
206 | 4661 | 4 | (error = config_file_read_buffer(entries, b->repo, &b->file, | |
207 | 4661 | 6,7 | b->level, 0, buf, buflen)) < 0 || | |
208 | 4661 | 6 | (error = config_file_set_entries(cfg, entries)) < 0) | |
209 | - | goto out; | ||
210 | - | |||
211 | 4661 | 8 | entries = NULL; | |
212 | - | out: | ||
213 | 4661 | 9 | git_config_entries_free(entries); | |
214 | 4661 | 10 | return error; | |
215 | - | } | ||
216 | - | |||
217 | 112956 | 2 | static int config_file_refresh(git_config_backend *cfg) | |
218 | - | { | ||
219 | 112956 | 2 | config_file_backend *b = GIT_CONTAINER_OF(cfg, config_file_backend, parent); | |
220 | 112956 | 2 | git_config_entries *entries = NULL; | |
221 | - | int error, modified; | ||
222 | - | |||
223 | 112956 | 2 | if (cfg->readonly) | |
224 | 1 | 3 | return 0; | |
225 | - | |||
226 | 112955 | 4-6 | if ((error = config_file_is_modified(&modified, &b->file)) < 0 && error != GIT_ENOTFOUND) | |
227 | ##### | 7 | goto out; | |
228 | - | |||
229 | 112953 | 8 | if (!modified) | |
230 | 111123 | 9 | return 0; | |
231 | - | |||
232 | 1830 | 10-13 | if ((error = git_config_entries_new(&entries)) < 0 || | |
233 | 1830 | 12,14,15 | (error = config_file_read(entries, b->repo, &b->file, b->level, 0)) < 0 || | |
234 | 1830 | 14 | (error = config_file_set_entries(cfg, entries)) < 0) | |
235 | - | goto out; | ||
236 | - | |||
237 | 1830 | 16 | entries = NULL; | |
238 | - | out: | ||
239 | 1830 | 17 | git_config_entries_free(entries); | |
240 | - | |||
241 | 1830 | 18 | return (error == GIT_ENOTFOUND) ? 0 : error; | |
242 | - | } | ||
243 | - | |||
244 | 15391 | 2 | static void config_file_free(git_config_backend *_backend) | |
245 | - | { | ||
246 | 15391 | 2 | config_file_backend *backend = GIT_CONTAINER_OF(_backend, config_file_backend, parent); | |
247 | - | |||
248 | 15391 | 2 | if (backend == NULL) | |
249 | 15390 | 3,8 | return; | |
250 | - | |||
251 | 15391 | 4 | config_file_clear(&backend->file); | |
252 | 15389 | 5 | git_config_entries_free(backend->entries); | |
253 | 15389 | 6 | git_mutex_free(&backend->values_mutex); | |
254 | 15389 | 7 | git__free(backend); | |
255 | - | } | ||
256 | - | |||
257 | - | 2 | suppressed: function cannot be solved config_file_iterator (automatic due to inconsistent arc counts in .gcda files)static int config_file_iterator( | |
258 | - | git_config_iterator **iter, | ||
259 | - | struct git_config_backend *backend) | ||
260 | - | { | ||
261 | - | 2 | suppressed: function cannot be solved config_file_iterator (automatic due to inconsistent arc counts in .gcda files) config_file_backend *b = GIT_CONTAINER_OF(backend, config_file_backend, parent); | |
262 | - | 2 | suppressed: function cannot be solved config_file_iterator (automatic due to inconsistent arc counts in .gcda files) git_config_entries *dupped = NULL, *entries = NULL; | |
263 | - | int error; | ||
264 | - | |||
265 | - | 2-5 | suppressed: function cannot be solved config_file_iterator (automatic due to inconsistent arc counts in .gcda files) if ((error = config_file_refresh(backend)) < 0 || | |
266 | - | 6,7 | suppressed: function cannot be solved config_file_iterator (automatic due to inconsistent arc counts in .gcda files) (error = config_file_entries_take(&entries, b)) < 0 || | |
267 | - | 6,8 | suppressed: function cannot be solved config_file_iterator (automatic due to inconsistent arc counts in .gcda files) (error = git_config_entries_dup(&dupped, entries)) < 0 || | |
268 | - | 8 | suppressed: function cannot be solved config_file_iterator (automatic due to inconsistent arc counts in .gcda files) (error = git_config_entries_iterator_new(iter, dupped)) < 0) | |
269 | - | goto out; | ||
270 | - | |||
271 | - | out: | ||
272 | - | /* Let iterator delete duplicated entries when it's done */ | ||
273 | - | 9 | suppressed: function cannot be solved config_file_iterator (automatic due to inconsistent arc counts in .gcda files) git_config_entries_free(entries); | |
274 | - | 10 | suppressed: function cannot be solved config_file_iterator (automatic due to inconsistent arc counts in .gcda files) git_config_entries_free(dupped); | |
275 | - | 11 | suppressed: function cannot be solved config_file_iterator (automatic due to inconsistent arc counts in .gcda files) return error; | |
276 | - | } | ||
277 | - | |||
278 | 47981 | 2 | static int config_file_snapshot(git_config_backend **out, git_config_backend *backend) | |
279 | - | { | ||
280 | 47981 | 2 | return git_config_backend_snapshot(out, backend); | |
281 | - | } | ||
282 | - | |||
283 | 4967 | 2 | static int config_file_set(git_config_backend *cfg, const char *name, const char *value) | |
284 | - | { | ||
285 | 4967 | 2 | config_file_backend *b = GIT_CONTAINER_OF(cfg, config_file_backend, parent); | |
286 | - | git_config_entries *entries; | ||
287 | - | git_config_entry *existing; | ||
288 | 4967 | 2 | char *key, *esc_value = NULL; | |
289 | - | int error; | ||
290 | - | |||
291 | 4967 | 2,3 | if ((error = git_config__normalize_name(name, &key)) < 0) | |
292 | 9 | 4 | return error; | |
293 | - | |||
294 | 4958 | 5,6 | if ((error = config_file_entries_take(&entries, b)) < 0) | |
295 | ##### | 7 | return error; | |
296 | - | |||
297 | - | /* Check whether we'd be modifying an included or multivar key */ | ||
298 | 4958 | 8,9 | if ((error = git_config_entries_get_unique(&existing, entries, key)) < 0) { | |
299 | 2252 | 10 | if (error != GIT_ENOTFOUND) | |
300 | 1 | 11 | goto out; | |
301 | 2251 | 12 | error = 0; | |
302 | 2706 | 13-15 | } else if ((!existing->value && !value) || | |
303 | 2706 | 15-17 | (existing->value && value && !strcmp(existing->value, value))) { | |
304 | - | /* don't update if old and new values already match */ | ||
305 | 2300 | 18 | error = 0; | |
306 | 2300 | 18 | goto out; | |
307 | - | } | ||
308 | - | |||
309 | - | /* No early returns due to sanity checks, let's write it out and refresh */ | ||
310 | 2657 | 19 | if (value) { | |
311 | 2657 | 20 | esc_value = escape_value(value); | |
312 | 2657 | 21,22 | GIT_ERROR_CHECK_ALLOC(esc_value); | |
313 | - | } | ||
314 | - | |||
315 | 2657 | 23,24 | if ((error = config_file_write(b, name, key, NULL, esc_value)) < 0) | |
316 | 1 | 25 | goto out; | |
317 | - | |||
318 | - | out: | ||
319 | 4958 | 26 | git_config_entries_free(entries); | |
320 | 4958 | 27 | git__free(esc_value); | |
321 | 4958 | 28 | git__free(key); | |
322 | 4958 | 29 | return error; | |
323 | - | } | ||
324 | - | |||
325 | - | /* release the map containing the entry as an equivalent to freeing it */ | ||
326 | 4068 | 2 | static void config_file_entry_free(git_config_entry *entry) | |
327 | - | { | ||
328 | 4068 | 2 | git_config_entries *entries = (git_config_entries *) entry->payload; | |
329 | 4068 | 2 | git_config_entries_free(entries); | |
330 | 4068 | 3 | } | |
331 | - | |||
332 | - | /* | ||
333 | - | * Internal function that actually gets the value in string form | ||
334 | - | */ | ||
335 | - | 2 | suppressed: function cannot be solved config_file_get (automatic due to inconsistent arc counts in .gcda files)static int config_file_get(git_config_backend *cfg, const char *key, git_config_entry **out) | |
336 | - | { | ||
337 | - | 2 | suppressed: function cannot be solved config_file_get (automatic due to inconsistent arc counts in .gcda files) config_file_backend *h = GIT_CONTAINER_OF(cfg, config_file_backend, parent); | |
338 | - | 2 | suppressed: function cannot be solved config_file_get (automatic due to inconsistent arc counts in .gcda files) git_config_entries *entries = NULL; | |
339 | - | git_config_entry *entry; | ||
340 | - | 2 | suppressed: function cannot be solved config_file_get (automatic due to inconsistent arc counts in .gcda files) int error = 0; | |
341 | - | |||
342 | - | 2-4 | suppressed: function cannot be solved config_file_get (automatic due to inconsistent arc counts in .gcda files) if (!h->parent.readonly && ((error = config_file_refresh(cfg)) < 0)) | |
343 | - | 5 | suppressed: function cannot be solved config_file_get (automatic due to inconsistent arc counts in .gcda files) return error; | |
344 | - | |||
345 | - | 6,7 | suppressed: function cannot be solved config_file_get (automatic due to inconsistent arc counts in .gcda files) if ((error = config_file_entries_take(&entries, h)) < 0) | |
346 | - | 8 | suppressed: function cannot be solved config_file_get (automatic due to inconsistent arc counts in .gcda files) return error; | |
347 | - | |||
348 | - | 9,10 | suppressed: function cannot be solved config_file_get (automatic due to inconsistent arc counts in .gcda files) if ((error = (git_config_entries_get(&entry, entries, key))) < 0) { | |
349 | - | 11 | suppressed: function cannot be solved config_file_get (automatic due to inconsistent arc counts in .gcda files) git_config_entries_free(entries); | |
350 | - | 12 | suppressed: function cannot be solved config_file_get (automatic due to inconsistent arc counts in .gcda files) return error; | |
351 | - | } | ||
352 | - | |||
353 | - | 13 | suppressed: function cannot be solved config_file_get (automatic due to inconsistent arc counts in .gcda files) entry->free = config_file_entry_free; | |
354 | - | 13 | suppressed: function cannot be solved config_file_get (automatic due to inconsistent arc counts in .gcda files) entry->payload = entries; | |
355 | - | 13 | suppressed: function cannot be solved config_file_get (automatic due to inconsistent arc counts in .gcda files) *out = entry; | |
356 | - | |||
357 | - | 13 | suppressed: function cannot be solved config_file_get (automatic due to inconsistent arc counts in .gcda files) return 0; | |
358 | - | } | ||
359 | - | |||
360 | 181 | 2 | static int config_file_set_multivar( | |
361 | - | git_config_backend *cfg, const char *name, const char *regexp, const char *value) | ||
362 | - | { | ||
363 | 181 | 2 | config_file_backend *b = GIT_CONTAINER_OF(cfg, config_file_backend, parent); | |
364 | - | git_regexp preg; | ||
365 | - | int result; | ||
366 | - | char *key; | ||
367 | - | |||
368 | 181 | 2,3 | assert(regexp); | |
369 | - | |||
370 | 181 | 4,5 | if ((result = git_config__normalize_name(name, &key)) < 0) | |
371 | 9 | 6 | return result; | |
372 | - | |||
373 | 172 | 7,8 | if ((result = git_regexp_compile(&preg, regexp, 0)) < 0) | |
374 | ##### | 9 | goto out; | |
375 | - | |||
376 | - | /* If we do have it, set call config_file_write() and reload */ | ||
377 | 172 | 10,11 | if ((result = config_file_write(b, name, key, &preg, value)) < 0) | |
378 | ##### | 12 | goto out; | |
379 | - | |||
380 | - | out: | ||
381 | 172 | 13 | git__free(key); | |
382 | 172 | 14 | git_regexp_dispose(&preg); | |
383 | - | |||
384 | 172 | 15 | return result; | |
385 | - | } | ||
386 | - | |||
387 | 5691 | 2 | static int config_file_delete(git_config_backend *cfg, const char *name) | |
388 | - | { | ||
389 | 5691 | 2 | config_file_backend *b = GIT_CONTAINER_OF(cfg, config_file_backend, parent); | |
390 | 5691 | 2 | git_config_entries *entries = NULL; | |
391 | - | git_config_entry *entry; | ||
392 | 5691 | 2 | char *key = NULL; | |
393 | - | int error; | ||
394 | - | |||
395 | 5691 | 2,3 | if ((error = git_config__normalize_name(name, &key)) < 0) | |
396 | 9 | 4 | goto out; | |
397 | - | |||
398 | 5682 | 5,6 | if ((error = config_file_entries_take(&entries, b)) < 0) | |
399 | ##### | 7 | goto out; | |
400 | - | |||
401 | - | /* Check whether we'd be modifying an included or multivar key */ | ||
402 | 5682 | 8,9 | if ((error = git_config_entries_get_unique(&entry, entries, key)) < 0) { | |
403 | 3850 | 10 | if (error == GIT_ENOTFOUND) | |
404 | 3849 | 11 | git_error_set(GIT_ERROR_CONFIG, "could not find key '%s' to delete", name); | |
405 | 3850 | 12 | goto out; | |
406 | - | } | ||
407 | - | |||
408 | 1832 | 13,14 | if ((error = config_file_write(b, name, entry->name, NULL, NULL)) < 0) | |
409 | ##### | 15 | goto out; | |
410 | - | |||
411 | - | out: | ||
412 | 5691 | 16 | git_config_entries_free(entries); | |
413 | 5691 | 17 | git__free(key); | |
414 | 5691 | 18 | return error; | |
415 | - | } | ||
416 | - | |||
417 | 5 | 2 | static int config_file_delete_multivar(git_config_backend *cfg, const char *name, const char *regexp) | |
418 | - | { | ||
419 | 5 | 2 | config_file_backend *b = GIT_CONTAINER_OF(cfg, config_file_backend, parent); | |
420 | 5 | 2 | git_config_entries *entries = NULL; | |
421 | 5 | 2 | git_config_entry *entry = NULL; | |
422 | 5 | 2 | git_regexp preg = GIT_REGEX_INIT; | |
423 | 5 | 2 | char *key = NULL; | |
424 | - | int result; | ||
425 | - | |||
426 | 5 | 2,3 | if ((result = git_config__normalize_name(name, &key)) < 0) | |
427 | ##### | 4 | goto out; | |
428 | - | |||
429 | 5 | 5,6 | if ((result = config_file_entries_take(&entries, b)) < 0) | |
430 | ##### | 7 | goto out; | |
431 | - | |||
432 | 5 | 8,9 | if ((result = git_config_entries_get(&entry, entries, key)) < 0) { | |
433 | 1 | 10 | if (result == GIT_ENOTFOUND) | |
434 | 1 | 11 | git_error_set(GIT_ERROR_CONFIG, "could not find key '%s' to delete", name); | |
435 | 1 | 12 | goto out; | |
436 | - | } | ||
437 | - | |||
438 | 4 | 13,14 | if ((result = git_regexp_compile(&preg, regexp, 0)) < 0) | |
439 | ##### | 15 | goto out; | |
440 | - | |||
441 | 4 | 16,17 | if ((result = config_file_write(b, name, key, &preg, NULL)) < 0) | |
442 | ##### | 18 | goto out; | |
443 | - | |||
444 | - | out: | ||
445 | 5 | 19 | git_config_entries_free(entries); | |
446 | 5 | 20 | git__free(key); | |
447 | 5 | 21 | git_regexp_dispose(&preg); | |
448 | 5 | 22 | return result; | |
449 | - | } | ||
450 | - | |||
451 | 2 | 2 | static int config_file_lock(git_config_backend *_cfg) | |
452 | - | { | ||
453 | 2 | 2 | config_file_backend *cfg = GIT_CONTAINER_OF(_cfg, config_file_backend, parent); | |
454 | - | int error; | ||
455 | - | |||
456 | 2 | 2,3 | if ((error = git_filebuf_open(&cfg->locked_buf, cfg->file.path, 0, GIT_CONFIG_FILE_MODE)) < 0) | |
457 | ##### | 4 | return error; | |
458 | - | |||
459 | 2 | 5 | error = git_futils_readbuffer(&cfg->locked_content, cfg->file.path); | |
460 | 2 | 6,7 | if (error < 0 && error != GIT_ENOTFOUND) { | |
461 | ##### | 8 | git_filebuf_cleanup(&cfg->locked_buf); | |
462 | ##### | 9 | return error; | |
463 | - | } | ||
464 | - | |||
465 | 2 | 10 | cfg->locked = true; | |
466 | 2 | 10 | return 0; | |
467 | - | |||
468 | - | } | ||
469 | - | |||
470 | 2 | 2 | static int config_file_unlock(git_config_backend *_cfg, int success) | |
471 | - | { | ||
472 | 2 | 2 | config_file_backend *cfg = GIT_CONTAINER_OF(_cfg, config_file_backend, parent); | |
473 | 2 | 2 | int error = 0; | |
474 | - | |||
475 | 2 | 2 | if (success) { | |
476 | 2 | 3 | git_filebuf_write(&cfg->locked_buf, cfg->locked_content.ptr, cfg->locked_content.size); | |
477 | 2 | 4 | error = git_filebuf_commit(&cfg->locked_buf); | |
478 | - | } | ||
479 | - | |||
480 | 2 | 5 | git_filebuf_cleanup(&cfg->locked_buf); | |
481 | 2 | 6 | git_buf_dispose(&cfg->locked_content); | |
482 | 2 | 7 | cfg->locked = false; | |
483 | - | |||
484 | 2 | 7 | return error; | |
485 | - | } | ||
486 | - | |||
487 | 15386 | 2 | int git_config_backend_from_file(git_config_backend **out, const char *path) | |
488 | - | { | ||
489 | - | config_file_backend *backend; | ||
490 | - | |||
491 | 15386 | 2 | backend = git__calloc(1, sizeof(config_file_backend)); | |
492 | 15389 | 3,4 | GIT_ERROR_CHECK_ALLOC(backend); | |
493 | - | |||
494 | 15389 | 5 | backend->parent.version = GIT_CONFIG_BACKEND_VERSION; | |
495 | 15389 | 5 | git_mutex_init(&backend->values_mutex); | |
496 | - | |||
497 | 15389 | 6 | backend->file.path = git__strdup(path); | |
498 | 15389 | 7,8 | GIT_ERROR_CHECK_ALLOC(backend->file.path); | |
499 | 15389 | 9 | git_array_init(backend->file.includes); | |
500 | - | |||
501 | 15389 | 9 | backend->parent.open = config_file_open; | |
502 | 15389 | 9 | backend->parent.get = config_file_get; | |
503 | 15389 | 9 | backend->parent.set = config_file_set; | |
504 | 15389 | 9 | backend->parent.set_multivar = config_file_set_multivar; | |
505 | 15389 | 9 | backend->parent.del = config_file_delete; | |
506 | 15389 | 9 | backend->parent.del_multivar = config_file_delete_multivar; | |
507 | 15389 | 9 | backend->parent.iterator = config_file_iterator; | |
508 | 15389 | 9 | backend->parent.snapshot = config_file_snapshot; | |
509 | 15389 | 9 | backend->parent.lock = config_file_lock; | |
510 | 15389 | 9 | backend->parent.unlock = config_file_unlock; | |
511 | 15389 | 9 | backend->parent.free = config_file_free; | |
512 | - | |||
513 | 15389 | 9 | *out = (git_config_backend *)backend; | |
514 | - | |||
515 | 15389 | 9 | return 0; | |
516 | - | } | ||
517 | - | |||
518 | 155 | 2 | static int included_path(git_buf *out, const char *dir, const char *path) | |
519 | - | { | ||
520 | - | /* From the user's home */ | ||
521 | 155 | 2,3 | if (path[0] == '~' && path[1] == '/') | |
522 | 2 | 4 | return git_sysdir_expand_global_file(out, &path[1]); | |
523 | - | |||
524 | 153 | 5 | return git_path_join_unrooted(out, path, dir, NULL); | |
525 | - | } | ||
526 | - | |||
527 | - | /* Escape the values to write them to the file */ | ||
528 | 2951 | 2 | static char *escape_value(const char *ptr) | |
529 | - | { | ||
530 | - | git_buf buf; | ||
531 | - | size_t len; | ||
532 | - | const char *esc; | ||
533 | - | |||
534 | 2951 | 2,3 | assert(ptr); | |
535 | - | |||
536 | 2951 | 4 | len = strlen(ptr); | |
537 | 2951 | 4 | if (!len) | |
538 | 2 | 5 | return git__calloc(1, sizeof(char)); | |
539 | - | |||
540 | 2949 | 6,7 | if (git_buf_init(&buf, len) < 0) | |
541 | ##### | 8 | return NULL; | |
542 | - | |||
543 | 27646 | 9,15 | while (*ptr != '\0') { | |
544 | 24697 | 10 | if ((esc = strchr(git_config_escaped, *ptr)) != NULL) { | |
545 | 15 | 11 | git_buf_putc(&buf, '\\'); | |
546 | 15 | 12 | git_buf_putc(&buf, git_config_escapes[esc - git_config_escaped]); | |
547 | - | } else { | ||
548 | 24682 | 13 | git_buf_putc(&buf, *ptr); | |
549 | - | } | ||
550 | 24697 | 14 | ptr++; | |
551 | - | } | ||
552 | - | |||
553 | 2949 | 16,17 | if (git_buf_oom(&buf)) | |
554 | ##### | 18 | return NULL; | |
555 | - | |||
556 | 2949 | 19 | return git_buf_detach(&buf); | |
557 | - | } | ||
558 | - | |||
559 | 156 | 2 | static int parse_include(config_file_parse_data *parse_data, const char *file) | |
560 | - | { | ||
561 | - | config_file *include; | ||
562 | 156 | 2 | git_buf path = GIT_BUF_INIT; | |
563 | - | char *dir; | ||
564 | - | int result; | ||
565 | - | |||
566 | 156 | 2 | if (!file) | |
567 | 1 | 3 | return 0; | |
568 | - | |||
569 | 155 | 4,5 | if ((result = git_path_dirname_r(&path, parse_data->file->path)) < 0) | |
570 | ##### | 6 | return result; | |
571 | - | |||
572 | 155 | 7 | dir = git_buf_detach(&path); | |
573 | 155 | 8 | result = included_path(&path, dir, file); | |
574 | 155 | 9 | git__free(dir); | |
575 | - | |||
576 | 155 | 10 | if (result < 0) | |
577 | ##### | 11 | return result; | |
578 | - | |||
579 | 155 | 12-17 | include = git_array_alloc(parse_data->file->includes); | |
580 | 155 | 18,19 | GIT_ERROR_CHECK_ALLOC(include); | |
581 | 155 | 20 | memset(include, 0, sizeof(*include)); | |
582 | 155 | 20 | git_array_init(include->includes); | |
583 | 155 | 20 | include->path = git_buf_detach(&path); | |
584 | - | |||
585 | 155 | 21 | result = config_file_read(parse_data->entries, parse_data->repo, include, | |
586 | 155 | 21 | parse_data->level, parse_data->depth+1); | |
587 | - | |||
588 | 155 | 22 | if (result == GIT_ENOTFOUND) { | |
589 | 2 | 23 | git_error_clear(); | |
590 | 2 | 24 | result = 0; | |
591 | - | } | ||
592 | - | |||
593 | 155 | 25 | return result; | |
594 | - | } | ||
595 | - | |||
596 | 26 | 2 | static int do_match_gitdir( | |
597 | - | int *matches, | ||
598 | - | const git_repository *repo, | ||
599 | - | const char *cfg_file, | ||
600 | - | const char *condition, | ||
601 | - | bool case_insensitive) | ||
602 | - | { | ||
603 | 26 | 2 | git_buf pattern = GIT_BUF_INIT, gitdir = GIT_BUF_INIT; | |
604 | - | int error; | ||
605 | - | |||
606 | 26 | 2,3 | if (condition[0] == '.' && git_path_is_dirsep(condition[1])) { | |
607 | 1 | 4 | git_path_dirname_r(&pattern, cfg_file); | |
608 | 1 | 5 | git_buf_joinpath(&pattern, pattern.ptr, condition + 2); | |
609 | 25 | 6,7 | } else if (condition[0] == '~' && git_path_is_dirsep(condition[1])) | |
610 | 1 | 8 | git_sysdir_expand_global_file(&pattern, condition + 1); | |
611 | 24 | 9 | else if (!git_path_is_absolute(condition)) | |
612 | 11 | 10 | git_buf_joinpath(&pattern, "**", condition); | |
613 | - | else | ||
614 | 13 | 11 | git_buf_sets(&pattern, condition); | |
615 | - | |||
616 | 26 | 12 | if (git_path_is_dirsep(condition[strlen(condition) - 1])) | |
617 | 14 | 13 | git_buf_puts(&pattern, "**"); | |
618 | - | |||
619 | 26 | 14,15 | if (git_buf_oom(&pattern)) { | |
620 | ##### | 16 | error = -1; | |
621 | ##### | 16 | goto out; | |
622 | - | } | ||
623 | - | |||
624 | 26 | 17,18 | if ((error = git_repository_item_path(&gitdir, repo, GIT_REPOSITORY_ITEM_GITDIR)) < 0) | |
625 | ##### | 19 | goto out; | |
626 | - | |||
627 | 26 | 20 | if (git_path_is_dirsep(gitdir.ptr[gitdir.size - 1])) | |
628 | 26 | 21 | git_buf_truncate(&gitdir, gitdir.size - 1); | |
629 | - | |||
630 | 26 | 22,23 | *matches = wildmatch(pattern.ptr, gitdir.ptr, | |
631 | 26 | 22,23 | WM_PATHNAME | (case_insensitive ? WM_CASEFOLD : 0)) == WM_MATCH; | |
632 | - | out: | ||
633 | 26 | 24 | git_buf_dispose(&pattern); | |
634 | 26 | 25 | git_buf_dispose(&gitdir); | |
635 | 26 | 26 | return error; | |
636 | - | } | ||
637 | - | |||
638 | 24 | 2 | static int conditional_match_gitdir( | |
639 | - | int *matches, | ||
640 | - | const git_repository *repo, | ||
641 | - | const char *cfg_file, | ||
642 | - | const char *value) | ||
643 | - | { | ||
644 | 24 | 2 | return do_match_gitdir(matches, repo, cfg_file, value, false); | |
645 | - | } | ||
646 | - | |||
647 | 2 | 2 | static int conditional_match_gitdir_i( | |
648 | - | int *matches, | ||
649 | - | const git_repository *repo, | ||
650 | - | const char *cfg_file, | ||
651 | - | const char *value) | ||
652 | - | { | ||
653 | 2 | 2 | return do_match_gitdir(matches, repo, cfg_file, value, true); | |
654 | - | } | ||
655 | - | |||
656 | 24 | 2 | static int conditional_match_onbranch( | |
657 | - | int *matches, | ||
658 | - | const git_repository *repo, | ||
659 | - | const char *cfg_file, | ||
660 | - | const char *condition) | ||
661 | - | { | ||
662 | 24 | 2 | git_buf reference = GIT_BUF_INIT, buf = GIT_BUF_INIT; | |
663 | - | int error; | ||
664 | - | |||
665 | - | GIT_UNUSED(cfg_file); | ||
666 | - | |||
667 | - | /* | ||
668 | - | * NOTE: you cannot use `git_repository_head` here. Looking up the | ||
669 | - | * HEAD reference will create the ODB, which causes us to read the | ||
670 | - | * repo's config for keys like core.precomposeUnicode. As we're | ||
671 | - | * just parsing the config right now, though, this would result in | ||
672 | - | * an endless recursion. | ||
673 | - | */ | ||
674 | - | |||
675 | 24 | 2-6 | if ((error = git_buf_joinpath(&buf, git_repository_path(repo), GIT_HEAD_FILE)) < 0 || | |
676 | 24 | 5 | (error = git_futils_readbuffer(&reference, buf.ptr)) < 0) | |
677 | - | goto out; | ||
678 | 24 | 7 | git_buf_rtrim(&reference); | |
679 | - | |||
680 | 24 | 8 | if (git__strncmp(reference.ptr, GIT_SYMREF, strlen(GIT_SYMREF))) | |
681 | ##### | 9 | goto out; | |
682 | 24 | 10 | git_buf_consume(&reference, reference.ptr + strlen(GIT_SYMREF)); | |
683 | - | |||
684 | 24 | 11 | if (git__strncmp(reference.ptr, GIT_REFS_HEADS_DIR, strlen(GIT_REFS_HEADS_DIR))) | |
685 | ##### | 12 | goto out; | |
686 | 24 | 13 | git_buf_consume(&reference, reference.ptr + strlen(GIT_REFS_HEADS_DIR)); | |
687 | - | |||
688 | - | /* | ||
689 | - | * If the condition ends with a '/', then we should treat it as if | ||
690 | - | * it had '**' appended. | ||
691 | - | */ | ||
692 | 24 | 14,15 | if ((error = git_buf_sets(&buf, condition)) < 0) | |
693 | ##### | 16 | goto out; | |
694 | 24 | 17-19 | if (git_path_is_dirsep(condition[strlen(condition) - 1]) && | |
695 | - | (error = git_buf_puts(&buf, "**")) < 0) | ||
696 | ##### | 20 | goto out; | |
697 | - | |||
698 | 24 | 21,22 | *matches = wildmatch(buf.ptr, reference.ptr, WM_PATHNAME) == WM_MATCH; | |
699 | - | out: | ||
700 | 24 | 23 | git_buf_dispose(&reference); | |
701 | 24 | 24 | git_buf_dispose(&buf); | |
702 | - | |||
703 | 24 | 25 | return error; | |
704 | - | |||
705 | - | } | ||
706 | - | |||
707 | - | static const struct { | ||
708 | - | const char *prefix; | ||
709 | - | int (*matches)(int *matches, const git_repository *repo, const char *cfg, const char *value); | ||
710 | - | } conditions[] = { | ||
711 | - | { "gitdir:", conditional_match_gitdir }, | ||
712 | - | { "gitdir/i:", conditional_match_gitdir_i }, | ||
713 | - | { "onbranch:", conditional_match_onbranch } | ||
714 | - | }; | ||
715 | - | |||
716 | 51 | 2 | static int parse_conditional_include(config_file_parse_data *parse_data, const char *section, const char *file) | |
717 | - | { | ||
718 | - | char *condition; | ||
719 | - | size_t i; | ||
720 | 51 | 2 | int error = 0, matches; | |
721 | - | |||
722 | 51 | 2,3 | if (!parse_data->repo || !file) | |
723 | ##### | 4 | return 0; | |
724 | - | |||
725 | 51 | 5 | condition = git__substrdup(section + strlen("includeIf."), | |
726 | - | strlen(section) - strlen("includeIf.") - strlen(".path")); | ||
727 | - | |||
728 | 104 | 6,9,16 | for (i = 0; i < ARRAY_SIZE(conditions); i++) { | |
729 | 103 | 7,8 | if (git__prefixcmp(condition, conditions[i].prefix)) | |
730 | 53 | 9 | continue; | |
731 | - | |||
732 | 50 | 10,10,10,11 | if ((error = conditions[i].matches(&matches, | |
733 | - | parse_data->repo, | ||
734 | 50 | 10 | parse_data->file->path, | |
735 | 50 | 10 | condition + strlen(conditions[i].prefix))) < 0) | |
736 | ##### | 12 | break; | |
737 | - | |||
738 | 50 | 13 | if (matches) | |
739 | 27 | 14 | error = parse_include(parse_data, file); | |
740 | - | |||
741 | 50 | 15 | break; | |
742 | - | } | ||
743 | - | |||
744 | 51 | 17 | git__free(condition); | |
745 | 51 | 18 | return error; | |
746 | - | } | ||
747 | - | |||
748 | 98029 | 2 | static int read_on_variable( | |
749 | - | git_config_parser *reader, | ||
750 | - | const char *current_section, | ||
751 | - | const char *var_name, | ||
752 | - | const char *var_value, | ||
753 | - | const char *line, | ||
754 | - | size_t line_len, | ||
755 | - | void *data) | ||
756 | - | { | ||
757 | 98029 | 2 | config_file_parse_data *parse_data = (config_file_parse_data *)data; | |
758 | 98029 | 2 | git_buf buf = GIT_BUF_INIT; | |
759 | - | git_config_entry *entry; | ||
760 | - | const char *c; | ||
761 | 98029 | 2 | int result = 0; | |
762 | - | |||
763 | - | GIT_UNUSED(reader); | ||
764 | - | GIT_UNUSED(line); | ||
765 | - | GIT_UNUSED(line_len); | ||
766 | - | |||
767 | 98029 | 2 | if (current_section) { | |
768 | - | /* TODO: Once warnings lang, we should likely warn | ||
769 | - | * here. Git appears to warn in most cases if it sees | ||
770 | - | * un-namespaced config options. | ||
771 | - | */ | ||
772 | 98027 | 3 | git_buf_puts(&buf, current_section); | |
773 | 98025 | 4 | git_buf_putc(&buf, '.'); | |
774 | - | } | ||
775 | - | |||
776 | 888148 | 5,7,8 | for (c = var_name; *c; c++) | |
777 | 790134 | 6 | git_buf_putc(&buf, git__tolower(*c)); | |
778 | - | |||
779 | 98014 | 9,10 | if (git_buf_oom(&buf)) | |
780 | ##### | 11 | return -1; | |
781 | - | |||
782 | 98011 | 12 | entry = git__calloc(1, sizeof(git_config_entry)); | |
783 | 98034 | 13,14 | GIT_ERROR_CHECK_ALLOC(entry); | |
784 | 98034 | 15 | entry->name = git_buf_detach(&buf); | |
785 | 98027 | 16-18 | entry->value = var_value ? git__strdup(var_value) : NULL; | |
786 | 98032 | 19 | entry->level = parse_data->level; | |
787 | 98032 | 19 | entry->include_depth = parse_data->depth; | |
788 | - | |||
789 | 98033 | 19,20 | if ((result = git_config_entries_append(parse_data->entries, entry)) < 0) | |
790 | ##### | 21 | return result; | |
791 | - | |||
792 | 98033 | 22 | result = 0; | |
793 | - | |||
794 | - | /* Add or append the new config option */ | ||
795 | 98033 | 22 | if (!git__strcmp(entry->name, "include.path")) | |
796 | 129 | 23 | result = parse_include(parse_data, entry->value); | |
797 | 97904 | 24,25,27 | else if (!git__prefixcmp(entry->name, "includeif.") && | |
798 | 51 | 26 | !git__suffixcmp(entry->name, ".path")) | |
799 | 51 | 28 | result = parse_conditional_include(parse_data, entry->name, entry->value); | |
800 | - | |||
801 | 98033 | 29 | return result; | |
802 | - | } | ||
803 | - | |||
804 | 18707 | 2 | static int config_file_read_buffer( | |
805 | - | git_config_entries *entries, | ||
806 | - | const git_repository *repo, | ||
807 | - | config_file *file, | ||
808 | - | git_config_level_t level, | ||
809 | - | int depth, | ||
810 | - | const char *buf, | ||
811 | - | size_t buflen) | ||
812 | - | { | ||
813 | - | config_file_parse_data parse_data; | ||
814 | - | git_config_parser reader; | ||
815 | - | int error; | ||
816 | - | |||
817 | 18707 | 2 | if (depth >= MAX_INCLUDE_DEPTH) { | |
818 | 1 | 3 | git_error_set(GIT_ERROR_CONFIG, "maximum config include depth reached"); | |
819 | 1 | 4 | return -1; | |
820 | - | } | ||
821 | - | |||
822 | - | /* Initialize the reading position */ | ||
823 | 18706 | 5 | reader.path = file->path; | |
824 | 18706 | 5 | git_parse_ctx_init(&reader.ctx, buf, buflen); | |
825 | - | |||
826 | - | /* If the file is empty, there's nothing for us to do */ | ||
827 | 18708 | 6,7 | if (!reader.ctx.content || *reader.ctx.content == '\0') { | |
828 | 404 | 8 | error = 0; | |
829 | 404 | 8 | goto out; | |
830 | - | } | ||
831 | - | |||
832 | 18304 | 9 | parse_data.repo = repo; | |
833 | 18304 | 9 | parse_data.file = file; | |
834 | 18304 | 9 | parse_data.entries = entries; | |
835 | 18304 | 9 | parse_data.level = level; | |
836 | 18304 | 9 | parse_data.depth = depth; | |
837 | - | |||
838 | 18304 | 9 | error = git_config_parse(&reader, NULL, read_on_variable, NULL, NULL, &parse_data); | |
839 | - | |||
840 | - | out: | ||
841 | 18709 | 10 | return error; | |
842 | - | } | ||
843 | - | |||
844 | 14050 | 2 | static int config_file_read( | |
845 | - | git_config_entries *entries, | ||
846 | - | const git_repository *repo, | ||
847 | - | config_file *file, | ||
848 | - | git_config_level_t level, | ||
849 | - | int depth) | ||
850 | - | { | ||
851 | 14050 | 2 | git_buf contents = GIT_BUF_INIT; | |
852 | - | struct stat st; | ||
853 | - | int error; | ||
854 | - | |||
855 | 14051 | 2,3 | if (p_stat(file->path, &st) < 0) { | |
856 | 2 | 4,5 | error = git_path_set_error(errno, file->path, "stat"); | |
857 | 2 | 6 | goto out; | |
858 | - | } | ||
859 | - | |||
860 | 14049 | 7,8 | if ((error = git_futils_readbuffer(&contents, file->path)) < 0) | |
861 | ##### | 9 | goto out; | |
862 | - | |||
863 | 14048 | 10 | git_futils_filestamp_set_from_stat(&file->stamp, &st); | |
864 | 14049 | 11,12 | if ((error = git_hash_buf(&file->checksum, contents.ptr, contents.size)) < 0) | |
865 | ##### | 13 | goto out; | |
866 | - | |||
867 | 14049 | 14,14,15 | if ((error = config_file_read_buffer(entries, repo, file, level, depth, | |
868 | 14046 | 14 | contents.ptr, contents.size)) < 0) | |
869 | 27 | 16 | goto out; | |
870 | - | |||
871 | - | out: | ||
872 | 14051 | 17 | git_buf_dispose(&contents); | |
873 | 14048 | 18 | return error; | |
874 | - | } | ||
875 | - | |||
876 | 850 | 2 | static int write_section(git_buf *fbuf, const char *key) | |
877 | - | { | ||
878 | - | int result; | ||
879 | - | const char *dot; | ||
880 | 850 | 2 | git_buf buf = GIT_BUF_INIT; | |
881 | - | |||
882 | - | /* All of this just for [section "subsection"] */ | ||
883 | 850 | 2 | dot = strchr(key, '.'); | |
884 | 850 | 2 | git_buf_putc(&buf, '['); | |
885 | 850 | 3 | if (dot == NULL) { | |
886 | 556 | 4 | git_buf_puts(&buf, key); | |
887 | - | } else { | ||
888 | - | char *escaped; | ||
889 | 294 | 5 | git_buf_put(&buf, key, dot - key); | |
890 | 294 | 6 | escaped = escape_value(dot + 1); | |
891 | 294 | 7,8 | GIT_ERROR_CHECK_ALLOC(escaped); | |
892 | 294 | 9 | git_buf_printf(&buf, " \"%s\"", escaped); | |
893 | 294 | 10 | git__free(escaped); | |
894 | - | } | ||
895 | 850 | 11 | git_buf_puts(&buf, "]\n"); | |
896 | - | |||
897 | 850 | 12,13 | if (git_buf_oom(&buf)) | |
898 | ##### | 14 | return -1; | |
899 | - | |||
900 | 850 | 15,16 | result = git_buf_put(fbuf, git_buf_cstr(&buf), buf.size); | |
901 | 850 | 17 | git_buf_dispose(&buf); | |
902 | - | |||
903 | 850 | 18 | return result; | |
904 | - | } | ||
905 | - | |||
906 | 2830 | 2 | static const char *quotes_for_value(const char *value) | |
907 | - | { | ||
908 | - | const char *ptr; | ||
909 | - | |||
910 | 2830 | 2,3 | if (value[0] == ' ' || value[0] == '\0') | |
911 | 4 | 4 | return "\""; | |
912 | - | |||
913 | 31183 | 5,9,10 | for (ptr = value; *ptr; ++ptr) { | |
914 | 28359 | 6,7 | if (*ptr == ';' || *ptr == '#') | |
915 | 2 | 8 | return "\""; | |
916 | - | } | ||
917 | - | |||
918 | 2824 | 11 | if (ptr[-1] == ' ') | |
919 | 1 | 12 | return "\""; | |
920 | - | |||
921 | 2823 | 13 | return ""; | |
922 | - | } | ||
923 | - | |||
924 | - | struct write_data { | ||
925 | - | git_buf *buf; | ||
926 | - | git_buf buffered_comment; | ||
927 | - | unsigned int in_section : 1, | ||
928 | - | preg_replaced : 1; | ||
929 | - | const char *orig_section; | ||
930 | - | const char *section; | ||
931 | - | const char *orig_name; | ||
932 | - | const char *name; | ||
933 | - | const git_regexp *preg; | ||
934 | - | const char *value; | ||
935 | - | }; | ||
936 | - | |||
937 | 34137 | 2 | static int write_line_to(git_buf *buf, const char *line, size_t line_len) | |
938 | - | { | ||
939 | 34137 | 2 | int result = git_buf_put(buf, line, line_len); | |
940 | - | |||
941 | 34137 | 3-5 | if (!result && line_len && line[line_len-1] != '\n') | |
942 | 3 | 6 | result = git_buf_printf(buf, "\n"); | |
943 | - | |||
944 | 34137 | 7 | return result; | |
945 | - | } | ||
946 | - | |||
947 | 33919 | 2 | static int write_line(struct write_data *write_data, const char *line, size_t line_len) | |
948 | - | { | ||
949 | 33919 | 2 | return write_line_to(write_data->buf, line, line_len); | |
950 | - | } | ||
951 | - | |||
952 | 2830 | 2 | static int write_value(struct write_data *write_data) | |
953 | - | { | ||
954 | - | const char *q; | ||
955 | - | int result; | ||
956 | - | |||
957 | 2830 | 2 | q = quotes_for_value(write_data->value); | |
958 | 2830 | 3 | result = git_buf_printf(write_data->buf, | |
959 | - | "\t%s = %s%s%s\n", write_data->orig_name, q, write_data->value, q); | ||
960 | - | |||
961 | - | /* If we are updating a single name/value, we're done. Setting `value` | ||
962 | - | * to `NULL` will prevent us from trying to write it again later (in | ||
963 | - | * `write_on_section`) if we see the same section repeated. | ||
964 | - | */ | ||
965 | 2830 | 4 | if (!write_data->preg) | |
966 | 2656 | 5 | write_data->value = NULL; | |
967 | - | |||
968 | 2830 | 6 | return result; | |
969 | - | } | ||
970 | - | |||
971 | 9423 | 2 | static int write_on_section( | |
972 | - | git_config_parser *reader, | ||
973 | - | const char *current_section, | ||
974 | - | const char *line, | ||
975 | - | size_t line_len, | ||
976 | - | void *data) | ||
977 | - | { | ||
978 | 9423 | 2 | struct write_data *write_data = (struct write_data *)data; | |
979 | 9423 | 2 | int result = 0; | |
980 | - | |||
981 | - | GIT_UNUSED(reader); | ||
982 | - | |||
983 | - | /* If we were previously in the correct section (but aren't anymore) | ||
984 | - | * and haven't written our value (for a simple name/value set, not | ||
985 | - | * a multivar), then append it to the end of the section before writing | ||
986 | - | * the new one. | ||
987 | - | */ | ||
988 | 9423 | 2-4 | if (write_data->in_section && !write_data->preg && write_data->value) | |
989 | 56 | 5 | result = write_value(write_data); | |
990 | - | |||
991 | 9423 | 6 | write_data->in_section = strcmp(current_section, write_data->section) == 0; | |
992 | - | |||
993 | - | /* | ||
994 | - | * If there were comments just before this section, dump them as well. | ||
995 | - | */ | ||
996 | 9423 | 6 | if (!result) { | |
997 | 9423 | 7 | result = git_buf_put(write_data->buf, write_data->buffered_comment.ptr, write_data->buffered_comment.size); | |
998 | 9423 | 8 | git_buf_clear(&write_data->buffered_comment); | |
999 | - | } | ||
1000 | - | |||
1001 | 9423 | 9 | if (!result) | |
1002 | 9423 | 10 | result = write_line(write_data, line, line_len); | |
1003 | - | |||
1004 | 9423 | 11 | return result; | |
1005 | - | } | ||
1006 | - | |||
1007 | 26746 | 2 | static int write_on_variable( | |
1008 | - | git_config_parser *reader, | ||
1009 | - | const char *current_section, | ||
1010 | - | const char *var_name, | ||
1011 | - | const char *var_value, | ||
1012 | - | const char *line, | ||
1013 | - | size_t line_len, | ||
1014 | - | void *data) | ||
1015 | - | { | ||
1016 | 26746 | 2 | struct write_data *write_data = (struct write_data *)data; | |
1017 | 26746 | 2 | bool has_matched = false; | |
1018 | - | int error; | ||
1019 | - | |||
1020 | - | GIT_UNUSED(reader); | ||
1021 | - | GIT_UNUSED(current_section); | ||
1022 | - | |||
1023 | - | /* | ||
1024 | - | * If there were comments just before this variable, let's dump them as well. | ||
1025 | - | */ | ||
1026 | 26746 | 2,3 | if ((error = git_buf_put(write_data->buf, write_data->buffered_comment.ptr, write_data->buffered_comment.size)) < 0) | |
1027 | ##### | 4 | return error; | |
1028 | - | |||
1029 | 26746 | 5 | git_buf_clear(&write_data->buffered_comment); | |
1030 | - | |||
1031 | - | /* See if we are to update this name/value pair; first examine name */ | ||
1032 | 26746 | 6,7 | if (write_data->in_section && | |
1033 | 15729 | 7 | strcasecmp(write_data->name, var_name) == 0) | |
1034 | 2265 | 8 | has_matched = true; | |
1035 | - | |||
1036 | - | /* If we have a regex to match the value, see if it matches */ | ||
1037 | 26746 | 9,10 | if (has_matched && write_data->preg != NULL) | |
1038 | 27 | 11,12 | has_matched = (git_regexp_match(write_data->preg, var_value) == 0); | |
1039 | - | |||
1040 | - | /* If this isn't the name/value we're looking for, simply dump the | ||
1041 | - | * existing data back out and continue on. | ||
1042 | - | */ | ||
1043 | 26746 | 13 | if (!has_matched) | |
1044 | 24496 | 14 | return write_line(write_data, line, line_len); | |
1045 | - | |||
1046 | 2250 | 15 | write_data->preg_replaced = 1; | |
1047 | - | |||
1048 | - | /* If value is NULL, we are deleting this value; write nothing. */ | ||
1049 | 2250 | 15 | if (!write_data->value) | |
1050 | 1841 | 16 | return 0; | |
1051 | - | |||
1052 | 409 | 17 | return write_value(write_data); | |
1053 | - | } | ||
1054 | - | |||
1055 | 218 | 2 | static int write_on_comment(git_config_parser *reader, const char *line, size_t line_len, void *data) | |
1056 | - | { | ||
1057 | - | struct write_data *write_data; | ||
1058 | - | |||
1059 | - | GIT_UNUSED(reader); | ||
1060 | - | |||
1061 | 218 | 2 | write_data = (struct write_data *)data; | |
1062 | 218 | 2 | return write_line_to(&write_data->buffered_comment, line, line_len); | |
1063 | - | } | ||
1064 | - | |||
1065 | 4664 | 2 | static int write_on_eof( | |
1066 | - | git_config_parser *reader, const char *current_section, void *data) | ||
1067 | - | { | ||
1068 | 4664 | 2 | struct write_data *write_data = (struct write_data *)data; | |
1069 | 4664 | 2 | int result = 0; | |
1070 | - | |||
1071 | - | GIT_UNUSED(reader); | ||
1072 | - | |||
1073 | - | /* | ||
1074 | - | * If we've buffered comments when reaching EOF, make sure to dump them. | ||
1075 | - | */ | ||
1076 | 4664 | 2,3 | if ((result = git_buf_put(write_data->buf, write_data->buffered_comment.ptr, write_data->buffered_comment.size)) < 0) | |
1077 | ##### | 4 | return result; | |
1078 | - | |||
1079 | - | /* If we are at the EOF and have not written our value (again, for a | ||
1080 | - | * simple name/value set, not a multivar) then we have never seen the | ||
1081 | - | * section in question and should create a new section and write the | ||
1082 | - | * value. | ||
1083 | - | */ | ||
1084 | 4664 | 5-7 | if ((!write_data->preg || !write_data->preg_replaced) && write_data->value) { | |
1085 | - | /* write the section header unless we're already in it */ | ||
1086 | 2365 | 8,9 | if (!current_section || strcmp(current_section, write_data->section)) | |
1087 | 850 | 10 | result = write_section(write_data->buf, write_data->orig_section); | |
1088 | - | |||
1089 | 2365 | 11 | if (!result) | |
1090 | 2365 | 12 | result = write_value(write_data); | |
1091 | - | } | ||
1092 | - | |||
1093 | 4664 | 13 | return result; | |
1094 | - | } | ||
1095 | - | |||
1096 | - | /* | ||
1097 | - | * This is pretty much the parsing, except we write out anything we don't have | ||
1098 | - | */ | ||
1099 | 4665 | 2 | static int config_file_write(config_file_backend *cfg, const char *orig_key, const char *key, const git_regexp *preg, const char* value) | |
1100 | - | |||
1101 | - | { | ||
1102 | 4665 | 2 | char *orig_section = NULL, *section = NULL, *orig_name, *name, *ldot; | |
1103 | 4665 | 2 | git_buf buf = GIT_BUF_INIT, contents = GIT_BUF_INIT; | |
1104 | 4665 | 2 | git_config_parser parser = GIT_CONFIG_PARSER_INIT; | |
1105 | 4665 | 2 | git_filebuf file = GIT_FILEBUF_INIT; | |
1106 | - | struct write_data write_data; | ||
1107 | - | int error; | ||
1108 | - | |||
1109 | 4665 | 2 | memset(&write_data, 0, sizeof(write_data)); | |
1110 | - | |||
1111 | 4665 | 2 | if (cfg->locked) { | |
1112 | 3 | 3-7 | error = git_buf_puts(&contents, git_buf_cstr(&cfg->locked_content) == NULL ? "" : git_buf_cstr(&cfg->locked_content)); | |
1113 | - | } else { | ||
1114 | 4662 | 8,9 | if ((error = git_filebuf_open(&file, cfg->file.path, GIT_FILEBUF_HASH_CONTENTS, | |
1115 | - | GIT_CONFIG_FILE_MODE)) < 0) | ||
1116 | 1 | 10 | goto done; | |
1117 | - | |||
1118 | - | /* We need to read in our own config file */ | ||
1119 | 4661 | 11 | error = git_futils_readbuffer(&contents, cfg->file.path); | |
1120 | - | } | ||
1121 | 4664 | 12,13 | if (error < 0 && error != GIT_ENOTFOUND) | |
1122 | ##### | 14 | goto done; | |
1123 | - | |||
1124 | 4664 | 15,16 | if ((git_config_parser_init(&parser, cfg->file.path, contents.ptr, contents.size)) < 0) | |
1125 | ##### | 17 | goto done; | |
1126 | - | |||
1127 | 4664 | 18 | ldot = strrchr(key, '.'); | |
1128 | 4664 | 18 | name = ldot + 1; | |
1129 | 4664 | 18 | section = git__strndup(key, ldot - key); | |
1130 | 4664 | 19,20 | GIT_ERROR_CHECK_ALLOC(section); | |
1131 | - | |||
1132 | 4664 | 21 | ldot = strrchr(orig_key, '.'); | |
1133 | 4664 | 21 | orig_name = ldot + 1; | |
1134 | 4664 | 21 | orig_section = git__strndup(orig_key, ldot - orig_key); | |
1135 | 4664 | 22,23 | GIT_ERROR_CHECK_ALLOC(orig_section); | |
1136 | - | |||
1137 | 4664 | 24 | write_data.buf = &buf; | |
1138 | 4664 | 24 | write_data.orig_section = orig_section; | |
1139 | 4664 | 24 | write_data.section = section; | |
1140 | 4664 | 24 | write_data.orig_name = orig_name; | |
1141 | 4664 | 24 | write_data.name = name; | |
1142 | 4664 | 24 | write_data.preg = preg; | |
1143 | 4664 | 24 | write_data.value = value; | |
1144 | - | |||
1145 | 4664 | 24,25 | if ((error = git_config_parse(&parser, write_on_section, write_on_variable, | |
1146 | - | write_on_comment, write_on_eof, &write_data)) < 0) | ||
1147 | ##### | 26 | goto done; | |
1148 | - | |||
1149 | 4664 | 27 | if (cfg->locked) { | |
1150 | 3 | 28 | size_t len = buf.asize; | |
1151 | - | /* Update our copy with the modified contents */ | ||
1152 | 3 | 28 | git_buf_dispose(&cfg->locked_content); | |
1153 | 3 | 29,30 | git_buf_attach(&cfg->locked_content, git_buf_detach(&buf), len); | |
1154 | - | } else { | ||
1155 | 4661 | 31-33 | git_filebuf_write(&file, git_buf_cstr(&buf), git_buf_len(&buf)); | |
1156 | - | |||
1157 | 4661 | 34,35 | if ((error = git_filebuf_commit(&file)) < 0) | |
1158 | ##### | 36 | goto done; | |
1159 | - | |||
1160 | 4661 | 37,38 | if ((error = config_file_refresh_from_buffer(&cfg->parent, buf.ptr, buf.size)) < 0) | |
1161 | ##### | 39 | goto done; | |
1162 | - | } | ||
1163 | - | |||
1164 | - | done: | ||
1165 | 4665 | 40 | git__free(section); | |
1166 | 4665 | 41 | git__free(orig_section); | |
1167 | 4665 | 42 | git_buf_dispose(&write_data.buffered_comment); | |
1168 | 4665 | 43 | git_buf_dispose(&buf); | |
1169 | 4665 | 44 | git_buf_dispose(&contents); | |
1170 | 4665 | 45 | git_filebuf_cleanup(&file); | |
1171 | 4665 | 46 | git_config_parser_dispose(&parser); | |
1172 | - | |||
1173 | 4665 | 47 | return error; | |
1174 | - | } |