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1 | /* | |
2 | * GIT - The information manager from hell | |
3 | * | |
4 | * Copyright (C) Linus Torvalds, 2005 | |
5 | * Copyright (C) Johannes Schindelin, 2005 | |
6 | * | |
7 | */ | |
8 | #include "git-compat-util.h" | |
9 | #include "abspath.h" | |
10 | #include "advice.h" | |
11 | #include "date.h" | |
12 | #include "branch.h" | |
13 | #include "config.h" | |
14 | #include "parse.h" | |
15 | #include "convert.h" | |
16 | #include "environment.h" | |
17 | #include "gettext.h" | |
18 | #include "ident.h" | |
19 | #include "repository.h" | |
20 | #include "lockfile.h" | |
21 | #include "mailmap.h" | |
22 | #include "attr.h" | |
23 | #include "exec-cmd.h" | |
24 | #include "strbuf.h" | |
25 | #include "quote.h" | |
26 | #include "hashmap.h" | |
27 | #include "string-list.h" | |
28 | #include "object-name.h" | |
29 | #include "object-store-ll.h" | |
30 | #include "pager.h" | |
31 | #include "path.h" | |
32 | #include "utf8.h" | |
33 | #include "color.h" | |
34 | #include "refs.h" | |
35 | #include "setup.h" | |
36 | #include "strvec.h" | |
37 | #include "trace2.h" | |
38 | #include "wildmatch.h" | |
39 | #include "ws.h" | |
40 | #include "write-or-die.h" | |
41 | ||
42 | struct config_source { | |
43 | struct config_source *prev; | |
44 | union { | |
45 | FILE *file; | |
46 | struct config_buf { | |
47 | const char *buf; | |
48 | size_t len; | |
49 | size_t pos; | |
50 | } buf; | |
51 | } u; | |
52 | enum config_origin_type origin_type; | |
53 | const char *name; | |
54 | const char *path; | |
55 | enum config_error_action default_error_action; | |
56 | int linenr; | |
57 | int eof; | |
58 | size_t total_len; | |
59 | struct strbuf value; | |
60 | struct strbuf var; | |
61 | unsigned subsection_case_sensitive : 1; | |
62 | ||
63 | int (*do_fgetc)(struct config_source *c); | |
64 | int (*do_ungetc)(int c, struct config_source *conf); | |
65 | long (*do_ftell)(struct config_source *c); | |
66 | }; | |
67 | #define CONFIG_SOURCE_INIT { 0 } | |
68 | ||
69 | static int pack_compression_seen; | |
70 | static int zlib_compression_seen; | |
71 | ||
72 | /* | |
73 | * Config that comes from trusted scopes, namely: | |
74 | * - CONFIG_SCOPE_SYSTEM (e.g. /etc/gitconfig) | |
75 | * - CONFIG_SCOPE_GLOBAL (e.g. $HOME/.gitconfig, $XDG_CONFIG_HOME/git) | |
76 | * - CONFIG_SCOPE_COMMAND (e.g. "-c" option, environment variables) | |
77 | * | |
78 | * This is declared here for code cleanliness, but unlike the other | |
79 | * static variables, this does not hold config parser state. | |
80 | */ | |
81 | static struct config_set protected_config; | |
82 | ||
83 | static int config_file_fgetc(struct config_source *conf) | |
84 | { | |
85 | return getc_unlocked(conf->u.file); | |
86 | } | |
87 | ||
88 | static int config_file_ungetc(int c, struct config_source *conf) | |
89 | { | |
90 | return ungetc(c, conf->u.file); | |
91 | } | |
92 | ||
93 | static long config_file_ftell(struct config_source *conf) | |
94 | { | |
95 | return ftell(conf->u.file); | |
96 | } | |
97 | ||
98 | static int config_buf_fgetc(struct config_source *conf) | |
99 | { | |
100 | if (conf->u.buf.pos < conf->u.buf.len) | |
101 | return conf->u.buf.buf[conf->u.buf.pos++]; | |
102 | ||
103 | return EOF; | |
104 | } | |
105 | ||
106 | static int config_buf_ungetc(int c, struct config_source *conf) | |
107 | { | |
108 | if (conf->u.buf.pos > 0) { | |
109 | conf->u.buf.pos--; | |
110 | if (conf->u.buf.buf[conf->u.buf.pos] != c) | |
111 | BUG("config_buf can only ungetc the same character"); | |
112 | return c; | |
113 | } | |
114 | ||
115 | return EOF; | |
116 | } | |
117 | ||
118 | static long config_buf_ftell(struct config_source *conf) | |
119 | { | |
120 | return conf->u.buf.pos; | |
121 | } | |
122 | ||
123 | struct config_include_data { | |
124 | int depth; | |
125 | config_fn_t fn; | |
126 | void *data; | |
127 | const struct config_options *opts; | |
128 | struct git_config_source *config_source; | |
129 | struct repository *repo; | |
130 | ||
131 | /* | |
132 | * All remote URLs discovered when reading all config files. | |
133 | */ | |
134 | struct string_list *remote_urls; | |
135 | }; | |
136 | #define CONFIG_INCLUDE_INIT { 0 } | |
137 | ||
138 | static int git_config_include(const char *var, const char *value, | |
139 | const struct config_context *ctx, void *data); | |
140 | ||
141 | #define MAX_INCLUDE_DEPTH 10 | |
142 | static const char include_depth_advice[] = N_( | |
143 | "exceeded maximum include depth (%d) while including\n" | |
144 | " %s\n" | |
145 | "from\n" | |
146 | " %s\n" | |
147 | "This might be due to circular includes."); | |
148 | static int handle_path_include(const struct key_value_info *kvi, | |
149 | const char *path, | |
150 | struct config_include_data *inc) | |
151 | { | |
152 | int ret = 0; | |
153 | struct strbuf buf = STRBUF_INIT; | |
154 | char *expanded; | |
155 | ||
156 | if (!path) | |
157 | return config_error_nonbool("include.path"); | |
158 | ||
159 | expanded = interpolate_path(path, 0); | |
160 | if (!expanded) | |
161 | return error(_("could not expand include path '%s'"), path); | |
162 | path = expanded; | |
163 | ||
164 | /* | |
165 | * Use an absolute path as-is, but interpret relative paths | |
166 | * based on the including config file. | |
167 | */ | |
168 | if (!is_absolute_path(path)) { | |
169 | char *slash; | |
170 | ||
171 | if (!kvi || !kvi->path) { | |
172 | ret = error(_("relative config includes must come from files")); | |
173 | goto cleanup; | |
174 | } | |
175 | ||
176 | slash = find_last_dir_sep(kvi->path); | |
177 | if (slash) | |
178 | strbuf_add(&buf, kvi->path, slash - kvi->path + 1); | |
179 | strbuf_addstr(&buf, path); | |
180 | path = buf.buf; | |
181 | } | |
182 | ||
183 | if (!access_or_die(path, R_OK, 0)) { | |
184 | if (++inc->depth > MAX_INCLUDE_DEPTH) | |
185 | die(_(include_depth_advice), MAX_INCLUDE_DEPTH, path, | |
186 | !kvi ? "<unknown>" : | |
187 | kvi->filename ? kvi->filename : | |
188 | "the command line"); | |
189 | ret = git_config_from_file_with_options(git_config_include, path, inc, | |
190 | kvi->scope, NULL); | |
191 | inc->depth--; | |
192 | } | |
193 | cleanup: | |
194 | strbuf_release(&buf); | |
195 | free(expanded); | |
196 | return ret; | |
197 | } | |
198 | ||
199 | static void add_trailing_starstar_for_dir(struct strbuf *pat) | |
200 | { | |
201 | if (pat->len && is_dir_sep(pat->buf[pat->len - 1])) | |
202 | strbuf_addstr(pat, "**"); | |
203 | } | |
204 | ||
205 | static int prepare_include_condition_pattern(const struct key_value_info *kvi, | |
206 | struct strbuf *pat) | |
207 | { | |
208 | struct strbuf path = STRBUF_INIT; | |
209 | char *expanded; | |
210 | int prefix = 0; | |
211 | ||
212 | expanded = interpolate_path(pat->buf, 1); | |
213 | if (expanded) { | |
214 | strbuf_reset(pat); | |
215 | strbuf_addstr(pat, expanded); | |
216 | free(expanded); | |
217 | } | |
218 | ||
219 | if (pat->buf[0] == '.' && is_dir_sep(pat->buf[1])) { | |
220 | const char *slash; | |
221 | ||
222 | if (!kvi || !kvi->path) | |
223 | return error(_("relative config include " | |
224 | "conditionals must come from files")); | |
225 | ||
226 | strbuf_realpath(&path, kvi->path, 1); | |
227 | slash = find_last_dir_sep(path.buf); | |
228 | if (!slash) | |
229 | BUG("how is this possible?"); | |
230 | strbuf_splice(pat, 0, 1, path.buf, slash - path.buf); | |
231 | prefix = slash - path.buf + 1 /* slash */; | |
232 | } else if (!is_absolute_path(pat->buf)) | |
233 | strbuf_insertstr(pat, 0, "**/"); | |
234 | ||
235 | add_trailing_starstar_for_dir(pat); | |
236 | ||
237 | strbuf_release(&path); | |
238 | return prefix; | |
239 | } | |
240 | ||
241 | static int include_by_gitdir(const struct key_value_info *kvi, | |
242 | const struct config_options *opts, | |
243 | const char *cond, size_t cond_len, int icase) | |
244 | { | |
245 | struct strbuf text = STRBUF_INIT; | |
246 | struct strbuf pattern = STRBUF_INIT; | |
247 | int ret = 0, prefix; | |
248 | const char *git_dir; | |
249 | int already_tried_absolute = 0; | |
250 | ||
251 | if (opts->git_dir) | |
252 | git_dir = opts->git_dir; | |
253 | else | |
254 | goto done; | |
255 | ||
256 | strbuf_realpath(&text, git_dir, 1); | |
257 | strbuf_add(&pattern, cond, cond_len); | |
258 | prefix = prepare_include_condition_pattern(kvi, &pattern); | |
259 | ||
260 | again: | |
261 | if (prefix < 0) | |
262 | goto done; | |
263 | ||
264 | if (prefix > 0) { | |
265 | /* | |
266 | * perform literal matching on the prefix part so that | |
267 | * any wildcard character in it can't create side effects. | |
268 | */ | |
269 | if (text.len < prefix) | |
270 | goto done; | |
271 | if (!icase && strncmp(pattern.buf, text.buf, prefix)) | |
272 | goto done; | |
273 | if (icase && strncasecmp(pattern.buf, text.buf, prefix)) | |
274 | goto done; | |
275 | } | |
276 | ||
277 | ret = !wildmatch(pattern.buf + prefix, text.buf + prefix, | |
278 | WM_PATHNAME | (icase ? WM_CASEFOLD : 0)); | |
279 | ||
280 | if (!ret && !already_tried_absolute) { | |
281 | /* | |
282 | * We've tried e.g. matching gitdir:~/work, but if | |
283 | * ~/work is a symlink to /mnt/storage/work | |
284 | * strbuf_realpath() will expand it, so the rule won't | |
285 | * match. Let's match against a | |
286 | * strbuf_add_absolute_path() version of the path, | |
287 | * which'll do the right thing | |
288 | */ | |
289 | strbuf_reset(&text); | |
290 | strbuf_add_absolute_path(&text, git_dir); | |
291 | already_tried_absolute = 1; | |
292 | goto again; | |
293 | } | |
294 | done: | |
295 | strbuf_release(&pattern); | |
296 | strbuf_release(&text); | |
297 | return ret; | |
298 | } | |
299 | ||
300 | static int include_by_branch(const char *cond, size_t cond_len) | |
301 | { | |
302 | int flags; | |
303 | int ret; | |
304 | struct strbuf pattern = STRBUF_INIT; | |
305 | const char *refname = !the_repository->gitdir ? | |
306 | NULL : resolve_ref_unsafe("HEAD", 0, NULL, &flags); | |
307 | const char *shortname; | |
308 | ||
309 | if (!refname || !(flags & REF_ISSYMREF) || | |
310 | !skip_prefix(refname, "refs/heads/", &shortname)) | |
311 | return 0; | |
312 | ||
313 | strbuf_add(&pattern, cond, cond_len); | |
314 | add_trailing_starstar_for_dir(&pattern); | |
315 | ret = !wildmatch(pattern.buf, shortname, WM_PATHNAME); | |
316 | strbuf_release(&pattern); | |
317 | return ret; | |
318 | } | |
319 | ||
320 | static int add_remote_url(const char *var, const char *value, | |
321 | const struct config_context *ctx UNUSED, void *data) | |
322 | { | |
323 | struct string_list *remote_urls = data; | |
324 | const char *remote_name; | |
325 | size_t remote_name_len; | |
326 | const char *key; | |
327 | ||
328 | if (!parse_config_key(var, "remote", &remote_name, &remote_name_len, | |
329 | &key) && | |
330 | remote_name && | |
331 | !strcmp(key, "url")) | |
332 | string_list_append(remote_urls, value); | |
333 | return 0; | |
334 | } | |
335 | ||
336 | static void populate_remote_urls(struct config_include_data *inc) | |
337 | { | |
338 | struct config_options opts; | |
339 | ||
340 | opts = *inc->opts; | |
341 | opts.unconditional_remote_url = 1; | |
342 | ||
343 | inc->remote_urls = xmalloc(sizeof(*inc->remote_urls)); | |
344 | string_list_init_dup(inc->remote_urls); | |
345 | config_with_options(add_remote_url, inc->remote_urls, | |
346 | inc->config_source, inc->repo, &opts); | |
347 | } | |
348 | ||
349 | static int forbid_remote_url(const char *var, const char *value UNUSED, | |
350 | const struct config_context *ctx UNUSED, | |
351 | void *data UNUSED) | |
352 | { | |
353 | const char *remote_name; | |
354 | size_t remote_name_len; | |
355 | const char *key; | |
356 | ||
357 | if (!parse_config_key(var, "remote", &remote_name, &remote_name_len, | |
358 | &key) && | |
359 | remote_name && | |
360 | !strcmp(key, "url")) | |
361 | die(_("remote URLs cannot be configured in file directly or indirectly included by includeIf.hasconfig:remote.*.url")); | |
362 | return 0; | |
363 | } | |
364 | ||
365 | static int at_least_one_url_matches_glob(const char *glob, int glob_len, | |
366 | struct string_list *remote_urls) | |
367 | { | |
368 | struct strbuf pattern = STRBUF_INIT; | |
369 | struct string_list_item *url_item; | |
370 | int found = 0; | |
371 | ||
372 | strbuf_add(&pattern, glob, glob_len); | |
373 | for_each_string_list_item(url_item, remote_urls) { | |
374 | if (!wildmatch(pattern.buf, url_item->string, WM_PATHNAME)) { | |
375 | found = 1; | |
376 | break; | |
377 | } | |
378 | } | |
379 | strbuf_release(&pattern); | |
380 | return found; | |
381 | } | |
382 | ||
383 | static int include_by_remote_url(struct config_include_data *inc, | |
384 | const char *cond, size_t cond_len) | |
385 | { | |
386 | if (inc->opts->unconditional_remote_url) | |
387 | return 1; | |
388 | if (!inc->remote_urls) | |
389 | populate_remote_urls(inc); | |
390 | return at_least_one_url_matches_glob(cond, cond_len, | |
391 | inc->remote_urls); | |
392 | } | |
393 | ||
394 | static int include_condition_is_true(const struct key_value_info *kvi, | |
395 | struct config_include_data *inc, | |
396 | const char *cond, size_t cond_len) | |
397 | { | |
398 | const struct config_options *opts = inc->opts; | |
399 | ||
400 | if (skip_prefix_mem(cond, cond_len, "gitdir:", &cond, &cond_len)) | |
401 | return include_by_gitdir(kvi, opts, cond, cond_len, 0); | |
402 | else if (skip_prefix_mem(cond, cond_len, "gitdir/i:", &cond, &cond_len)) | |
403 | return include_by_gitdir(kvi, opts, cond, cond_len, 1); | |
404 | else if (skip_prefix_mem(cond, cond_len, "onbranch:", &cond, &cond_len)) | |
405 | return include_by_branch(cond, cond_len); | |
406 | else if (skip_prefix_mem(cond, cond_len, "hasconfig:remote.*.url:", &cond, | |
407 | &cond_len)) | |
408 | return include_by_remote_url(inc, cond, cond_len); | |
409 | ||
410 | /* unknown conditionals are always false */ | |
411 | return 0; | |
412 | } | |
413 | ||
414 | static int git_config_include(const char *var, const char *value, | |
415 | const struct config_context *ctx, | |
416 | void *data) | |
417 | { | |
418 | struct config_include_data *inc = data; | |
419 | const char *cond, *key; | |
420 | size_t cond_len; | |
421 | int ret; | |
422 | ||
423 | /* | |
424 | * Pass along all values, including "include" directives; this makes it | |
425 | * possible to query information on the includes themselves. | |
426 | */ | |
427 | ret = inc->fn(var, value, ctx, inc->data); | |
428 | if (ret < 0) | |
429 | return ret; | |
430 | ||
431 | if (!strcmp(var, "include.path")) | |
432 | ret = handle_path_include(ctx->kvi, value, inc); | |
433 | ||
434 | if (!parse_config_key(var, "includeif", &cond, &cond_len, &key) && | |
435 | cond && include_condition_is_true(ctx->kvi, inc, cond, cond_len) && | |
436 | !strcmp(key, "path")) { | |
437 | config_fn_t old_fn = inc->fn; | |
438 | ||
439 | if (inc->opts->unconditional_remote_url) | |
440 | inc->fn = forbid_remote_url; | |
441 | ret = handle_path_include(ctx->kvi, value, inc); | |
442 | inc->fn = old_fn; | |
443 | } | |
444 | ||
445 | return ret; | |
446 | } | |
447 | ||
448 | static void git_config_push_split_parameter(const char *key, const char *value) | |
449 | { | |
450 | struct strbuf env = STRBUF_INIT; | |
451 | const char *old = getenv(CONFIG_DATA_ENVIRONMENT); | |
452 | if (old && *old) { | |
453 | strbuf_addstr(&env, old); | |
454 | strbuf_addch(&env, ' '); | |
455 | } | |
456 | sq_quote_buf(&env, key); | |
457 | strbuf_addch(&env, '='); | |
458 | if (value) | |
459 | sq_quote_buf(&env, value); | |
460 | setenv(CONFIG_DATA_ENVIRONMENT, env.buf, 1); | |
461 | strbuf_release(&env); | |
462 | } | |
463 | ||
464 | void git_config_push_parameter(const char *text) | |
465 | { | |
466 | const char *value; | |
467 | ||
468 | /* | |
469 | * When we see: | |
470 | * | |
471 | * section.subsection=with=equals.key=value | |
472 | * | |
473 | * we cannot tell if it means: | |
474 | * | |
475 | * [section "subsection=with=equals"] | |
476 | * key = value | |
477 | * | |
478 | * or: | |
479 | * | |
480 | * [section] | |
481 | * subsection = with=equals.key=value | |
482 | * | |
483 | * We parse left-to-right for the first "=", meaning we'll prefer to | |
484 | * keep the value intact over the subsection. This is historical, but | |
485 | * also sensible since values are more likely to contain odd or | |
486 | * untrusted input than a section name. | |
487 | * | |
488 | * A missing equals is explicitly allowed (as a bool-only entry). | |
489 | */ | |
490 | value = strchr(text, '='); | |
491 | if (value) { | |
492 | char *key = xmemdupz(text, value - text); | |
493 | git_config_push_split_parameter(key, value + 1); | |
494 | free(key); | |
495 | } else { | |
496 | git_config_push_split_parameter(text, NULL); | |
497 | } | |
498 | } | |
499 | ||
500 | void git_config_push_env(const char *spec) | |
501 | { | |
502 | char *key; | |
503 | const char *env_name; | |
504 | const char *env_value; | |
505 | ||
506 | env_name = strrchr(spec, '='); | |
507 | if (!env_name) | |
508 | die(_("invalid config format: %s"), spec); | |
509 | key = xmemdupz(spec, env_name - spec); | |
510 | env_name++; | |
511 | if (!*env_name) | |
512 | die(_("missing environment variable name for configuration '%.*s'"), | |
513 | (int)(env_name - spec - 1), spec); | |
514 | ||
515 | env_value = getenv(env_name); | |
516 | if (!env_value) | |
517 | die(_("missing environment variable '%s' for configuration '%.*s'"), | |
518 | env_name, (int)(env_name - spec - 1), spec); | |
519 | ||
520 | git_config_push_split_parameter(key, env_value); | |
521 | free(key); | |
522 | } | |
523 | ||
524 | static inline int iskeychar(int c) | |
525 | { | |
526 | return isalnum(c) || c == '-'; | |
527 | } | |
528 | ||
529 | /* | |
530 | * Auxiliary function to sanity-check and split the key into the section | |
531 | * identifier and variable name. | |
532 | * | |
533 | * Returns 0 on success, -1 when there is an invalid character in the key and | |
534 | * -2 if there is no section name in the key. | |
535 | * | |
536 | * store_key - pointer to char* which will hold a copy of the key with | |
537 | * lowercase section and variable name | |
538 | * baselen - pointer to size_t which will hold the length of the | |
539 | * section + subsection part, can be NULL | |
540 | */ | |
541 | int git_config_parse_key(const char *key, char **store_key, size_t *baselen_) | |
542 | { | |
543 | size_t i, baselen; | |
544 | int dot; | |
545 | const char *last_dot = strrchr(key, '.'); | |
546 | ||
547 | /* | |
548 | * Since "key" actually contains the section name and the real | |
549 | * key name separated by a dot, we have to know where the dot is. | |
550 | */ | |
551 | ||
552 | if (last_dot == NULL || last_dot == key) { | |
553 | error(_("key does not contain a section: %s"), key); | |
554 | return -CONFIG_NO_SECTION_OR_NAME; | |
555 | } | |
556 | ||
557 | if (!last_dot[1]) { | |
558 | error(_("key does not contain variable name: %s"), key); | |
559 | return -CONFIG_NO_SECTION_OR_NAME; | |
560 | } | |
561 | ||
562 | baselen = last_dot - key; | |
563 | if (baselen_) | |
564 | *baselen_ = baselen; | |
565 | ||
566 | /* | |
567 | * Validate the key and while at it, lower case it for matching. | |
568 | */ | |
569 | *store_key = xmallocz(strlen(key)); | |
570 | ||
571 | dot = 0; | |
572 | for (i = 0; key[i]; i++) { | |
573 | unsigned char c = key[i]; | |
574 | if (c == '.') | |
575 | dot = 1; | |
576 | /* Leave the extended basename untouched.. */ | |
577 | if (!dot || i > baselen) { | |
578 | if (!iskeychar(c) || | |
579 | (i == baselen + 1 && !isalpha(c))) { | |
580 | error(_("invalid key: %s"), key); | |
581 | goto out_free_ret_1; | |
582 | } | |
583 | c = tolower(c); | |
584 | } else if (c == '\n') { | |
585 | error(_("invalid key (newline): %s"), key); | |
586 | goto out_free_ret_1; | |
587 | } | |
588 | (*store_key)[i] = c; | |
589 | } | |
590 | ||
591 | return 0; | |
592 | ||
593 | out_free_ret_1: | |
594 | FREE_AND_NULL(*store_key); | |
595 | return -CONFIG_INVALID_KEY; | |
596 | } | |
597 | ||
598 | static int config_parse_pair(const char *key, const char *value, | |
599 | struct key_value_info *kvi, | |
600 | config_fn_t fn, void *data) | |
601 | { | |
602 | char *canonical_name; | |
603 | int ret; | |
604 | struct config_context ctx = { | |
605 | .kvi = kvi, | |
606 | }; | |
607 | ||
608 | if (!strlen(key)) | |
609 | return error(_("empty config key")); | |
610 | if (git_config_parse_key(key, &canonical_name, NULL)) | |
611 | return -1; | |
612 | ||
613 | ret = (fn(canonical_name, value, &ctx, data) < 0) ? -1 : 0; | |
614 | free(canonical_name); | |
615 | return ret; | |
616 | } | |
617 | ||
618 | ||
619 | /* for values read from `git_config_from_parameters()` */ | |
620 | void kvi_from_param(struct key_value_info *out) | |
621 | { | |
622 | out->filename = NULL; | |
623 | out->linenr = -1; | |
624 | out->origin_type = CONFIG_ORIGIN_CMDLINE; | |
625 | out->scope = CONFIG_SCOPE_COMMAND; | |
626 | out->path = NULL; | |
627 | } | |
628 | ||
629 | int git_config_parse_parameter(const char *text, | |
630 | config_fn_t fn, void *data) | |
631 | { | |
632 | const char *value; | |
633 | struct strbuf **pair; | |
634 | int ret; | |
635 | struct key_value_info kvi = KVI_INIT; | |
636 | ||
637 | kvi_from_param(&kvi); | |
638 | ||
639 | pair = strbuf_split_str(text, '=', 2); | |
640 | if (!pair[0]) | |
641 | return error(_("bogus config parameter: %s"), text); | |
642 | ||
643 | if (pair[0]->len && pair[0]->buf[pair[0]->len - 1] == '=') { | |
644 | strbuf_setlen(pair[0], pair[0]->len - 1); | |
645 | value = pair[1] ? pair[1]->buf : ""; | |
646 | } else { | |
647 | value = NULL; | |
648 | } | |
649 | ||
650 | strbuf_trim(pair[0]); | |
651 | if (!pair[0]->len) { | |
652 | strbuf_list_free(pair); | |
653 | return error(_("bogus config parameter: %s"), text); | |
654 | } | |
655 | ||
656 | ret = config_parse_pair(pair[0]->buf, value, &kvi, fn, data); | |
657 | strbuf_list_free(pair); | |
658 | return ret; | |
659 | } | |
660 | ||
661 | static int parse_config_env_list(char *env, struct key_value_info *kvi, | |
662 | config_fn_t fn, void *data) | |
663 | { | |
664 | char *cur = env; | |
665 | while (cur && *cur) { | |
666 | const char *key = sq_dequote_step(cur, &cur); | |
667 | if (!key) | |
668 | return error(_("bogus format in %s"), | |
669 | CONFIG_DATA_ENVIRONMENT); | |
670 | ||
671 | if (!cur || isspace(*cur)) { | |
672 | /* old-style 'key=value' */ | |
673 | if (git_config_parse_parameter(key, fn, data) < 0) | |
674 | return -1; | |
675 | } | |
676 | else if (*cur == '=') { | |
677 | /* new-style 'key'='value' */ | |
678 | const char *value; | |
679 | ||
680 | cur++; | |
681 | if (*cur == '\'') { | |
682 | /* quoted value */ | |
683 | value = sq_dequote_step(cur, &cur); | |
684 | if (!value || (cur && !isspace(*cur))) { | |
685 | return error(_("bogus format in %s"), | |
686 | CONFIG_DATA_ENVIRONMENT); | |
687 | } | |
688 | } else if (!*cur || isspace(*cur)) { | |
689 | /* implicit bool: 'key'= */ | |
690 | value = NULL; | |
691 | } else { | |
692 | return error(_("bogus format in %s"), | |
693 | CONFIG_DATA_ENVIRONMENT); | |
694 | } | |
695 | ||
696 | if (config_parse_pair(key, value, kvi, fn, data) < 0) | |
697 | return -1; | |
698 | } | |
699 | else { | |
700 | /* unknown format */ | |
701 | return error(_("bogus format in %s"), | |
702 | CONFIG_DATA_ENVIRONMENT); | |
703 | } | |
704 | ||
705 | if (cur) { | |
706 | while (isspace(*cur)) | |
707 | cur++; | |
708 | } | |
709 | } | |
710 | return 0; | |
711 | } | |
712 | ||
713 | int git_config_from_parameters(config_fn_t fn, void *data) | |
714 | { | |
715 | const char *env; | |
716 | struct strbuf envvar = STRBUF_INIT; | |
717 | struct strvec to_free = STRVEC_INIT; | |
718 | int ret = 0; | |
719 | char *envw = NULL; | |
720 | struct key_value_info kvi = KVI_INIT; | |
721 | ||
722 | kvi_from_param(&kvi); | |
723 | env = getenv(CONFIG_COUNT_ENVIRONMENT); | |
724 | if (env) { | |
725 | unsigned long count; | |
726 | char *endp; | |
727 | int i; | |
728 | ||
729 | count = strtoul(env, &endp, 10); | |
730 | if (*endp) { | |
731 | ret = error(_("bogus count in %s"), CONFIG_COUNT_ENVIRONMENT); | |
732 | goto out; | |
733 | } | |
734 | if (count > INT_MAX) { | |
735 | ret = error(_("too many entries in %s"), CONFIG_COUNT_ENVIRONMENT); | |
736 | goto out; | |
737 | } | |
738 | ||
739 | for (i = 0; i < count; i++) { | |
740 | const char *key, *value; | |
741 | ||
742 | strbuf_addf(&envvar, "GIT_CONFIG_KEY_%d", i); | |
743 | key = getenv_safe(&to_free, envvar.buf); | |
744 | if (!key) { | |
745 | ret = error(_("missing config key %s"), envvar.buf); | |
746 | goto out; | |
747 | } | |
748 | strbuf_reset(&envvar); | |
749 | ||
750 | strbuf_addf(&envvar, "GIT_CONFIG_VALUE_%d", i); | |
751 | value = getenv_safe(&to_free, envvar.buf); | |
752 | if (!value) { | |
753 | ret = error(_("missing config value %s"), envvar.buf); | |
754 | goto out; | |
755 | } | |
756 | strbuf_reset(&envvar); | |
757 | ||
758 | if (config_parse_pair(key, value, &kvi, fn, data) < 0) { | |
759 | ret = -1; | |
760 | goto out; | |
761 | } | |
762 | } | |
763 | } | |
764 | ||
765 | env = getenv(CONFIG_DATA_ENVIRONMENT); | |
766 | if (env) { | |
767 | /* sq_dequote will write over it */ | |
768 | envw = xstrdup(env); | |
769 | if (parse_config_env_list(envw, &kvi, fn, data) < 0) { | |
770 | ret = -1; | |
771 | goto out; | |
772 | } | |
773 | } | |
774 | ||
775 | out: | |
776 | strbuf_release(&envvar); | |
777 | strvec_clear(&to_free); | |
778 | free(envw); | |
779 | return ret; | |
780 | } | |
781 | ||
782 | static int get_next_char(struct config_source *cs) | |
783 | { | |
784 | int c = cs->do_fgetc(cs); | |
785 | ||
786 | if (c == '\r') { | |
787 | /* DOS like systems */ | |
788 | c = cs->do_fgetc(cs); | |
789 | if (c != '\n') { | |
790 | if (c != EOF) | |
791 | cs->do_ungetc(c, cs); | |
792 | c = '\r'; | |
793 | } | |
794 | } | |
795 | ||
796 | if (c != EOF && ++cs->total_len > INT_MAX) { | |
797 | /* | |
798 | * This is an absurdly long config file; refuse to parse | |
799 | * further in order to protect downstream code from integer | |
800 | * overflows. Note that we can't return an error specifically, | |
801 | * but we can mark EOF and put trash in the return value, | |
802 | * which will trigger a parse error. | |
803 | */ | |
804 | cs->eof = 1; | |
805 | return 0; | |
806 | } | |
807 | ||
808 | if (c == '\n') | |
809 | cs->linenr++; | |
810 | if (c == EOF) { | |
811 | cs->eof = 1; | |
812 | cs->linenr++; | |
813 | c = '\n'; | |
814 | } | |
815 | return c; | |
816 | } | |
817 | ||
818 | static char *parse_value(struct config_source *cs) | |
819 | { | |
820 | int quote = 0, comment = 0, space = 0; | |
821 | ||
822 | strbuf_reset(&cs->value); | |
823 | for (;;) { | |
824 | int c = get_next_char(cs); | |
825 | if (c == '\n') { | |
826 | if (quote) { | |
827 | cs->linenr--; | |
828 | return NULL; | |
829 | } | |
830 | return cs->value.buf; | |
831 | } | |
832 | if (comment) | |
833 | continue; | |
834 | if (isspace(c) && !quote) { | |
835 | if (cs->value.len) | |
836 | space++; | |
837 | continue; | |
838 | } | |
839 | if (!quote) { | |
840 | if (c == ';' || c == '#') { | |
841 | comment = 1; | |
842 | continue; | |
843 | } | |
844 | } | |
845 | for (; space; space--) | |
846 | strbuf_addch(&cs->value, ' '); | |
847 | if (c == '\\') { | |
848 | c = get_next_char(cs); | |
849 | switch (c) { | |
850 | case '\n': | |
851 | continue; | |
852 | case 't': | |
853 | c = '\t'; | |
854 | break; | |
855 | case 'b': | |
856 | c = '\b'; | |
857 | break; | |
858 | case 'n': | |
859 | c = '\n'; | |
860 | break; | |
861 | /* Some characters escape as themselves */ | |
862 | case '\\': case '"': | |
863 | break; | |
864 | /* Reject unknown escape sequences */ | |
865 | default: | |
866 | return NULL; | |
867 | } | |
868 | strbuf_addch(&cs->value, c); | |
869 | continue; | |
870 | } | |
871 | if (c == '"') { | |
872 | quote = 1-quote; | |
873 | continue; | |
874 | } | |
875 | strbuf_addch(&cs->value, c); | |
876 | } | |
877 | } | |
878 | ||
879 | static int get_value(struct config_source *cs, struct key_value_info *kvi, | |
880 | config_fn_t fn, void *data, struct strbuf *name) | |
881 | { | |
882 | int c; | |
883 | char *value; | |
884 | int ret; | |
885 | struct config_context ctx = { | |
886 | .kvi = kvi, | |
887 | }; | |
888 | ||
889 | /* Get the full name */ | |
890 | for (;;) { | |
891 | c = get_next_char(cs); | |
892 | if (cs->eof) | |
893 | break; | |
894 | if (!iskeychar(c)) | |
895 | break; | |
896 | strbuf_addch(name, tolower(c)); | |
897 | } | |
898 | ||
899 | while (c == ' ' || c == '\t') | |
900 | c = get_next_char(cs); | |
901 | ||
902 | value = NULL; | |
903 | if (c != '\n') { | |
904 | if (c != '=') | |
905 | return -1; | |
906 | value = parse_value(cs); | |
907 | if (!value) | |
908 | return -1; | |
909 | } | |
910 | /* | |
911 | * We already consumed the \n, but we need linenr to point to | |
912 | * the line we just parsed during the call to fn to get | |
913 | * accurate line number in error messages. | |
914 | */ | |
915 | cs->linenr--; | |
916 | kvi->linenr = cs->linenr; | |
917 | ret = fn(name->buf, value, &ctx, data); | |
918 | if (ret >= 0) | |
919 | cs->linenr++; | |
920 | return ret; | |
921 | } | |
922 | ||
923 | static int get_extended_base_var(struct config_source *cs, struct strbuf *name, | |
924 | int c) | |
925 | { | |
926 | cs->subsection_case_sensitive = 0; | |
927 | do { | |
928 | if (c == '\n') | |
929 | goto error_incomplete_line; | |
930 | c = get_next_char(cs); | |
931 | } while (isspace(c)); | |
932 | ||
933 | /* We require the format to be '[base "extension"]' */ | |
934 | if (c != '"') | |
935 | return -1; | |
936 | strbuf_addch(name, '.'); | |
937 | ||
938 | for (;;) { | |
939 | int c = get_next_char(cs); | |
940 | if (c == '\n') | |
941 | goto error_incomplete_line; | |
942 | if (c == '"') | |
943 | break; | |
944 | if (c == '\\') { | |
945 | c = get_next_char(cs); | |
946 | if (c == '\n') | |
947 | goto error_incomplete_line; | |
948 | } | |
949 | strbuf_addch(name, c); | |
950 | } | |
951 | ||
952 | /* Final ']' */ | |
953 | if (get_next_char(cs) != ']') | |
954 | return -1; | |
955 | return 0; | |
956 | error_incomplete_line: | |
957 | cs->linenr--; | |
958 | return -1; | |
959 | } | |
960 | ||
961 | static int get_base_var(struct config_source *cs, struct strbuf *name) | |
962 | { | |
963 | cs->subsection_case_sensitive = 1; | |
964 | for (;;) { | |
965 | int c = get_next_char(cs); | |
966 | if (cs->eof) | |
967 | return -1; | |
968 | if (c == ']') | |
969 | return 0; | |
970 | if (isspace(c)) | |
971 | return get_extended_base_var(cs, name, c); | |
972 | if (!iskeychar(c) && c != '.') | |
973 | return -1; | |
974 | strbuf_addch(name, tolower(c)); | |
975 | } | |
976 | } | |
977 | ||
978 | struct parse_event_data { | |
979 | enum config_event_t previous_type; | |
980 | size_t previous_offset; | |
981 | const struct config_options *opts; | |
982 | }; | |
983 | ||
984 | static int do_event(struct config_source *cs, enum config_event_t type, | |
985 | struct parse_event_data *data) | |
986 | { | |
987 | size_t offset; | |
988 | ||
989 | if (!data->opts || !data->opts->event_fn) | |
990 | return 0; | |
991 | ||
992 | if (type == CONFIG_EVENT_WHITESPACE && | |
993 | data->previous_type == type) | |
994 | return 0; | |
995 | ||
996 | offset = cs->do_ftell(cs); | |
997 | /* | |
998 | * At EOF, the parser always "inserts" an extra '\n', therefore | |
999 | * the end offset of the event is the current file position, otherwise | |
1000 | * we will already have advanced to the next event. | |
1001 | */ | |
1002 | if (type != CONFIG_EVENT_EOF) | |
1003 | offset--; | |
1004 | ||
1005 | if (data->previous_type != CONFIG_EVENT_EOF && | |
1006 | data->opts->event_fn(data->previous_type, data->previous_offset, | |
1007 | offset, cs, data->opts->event_fn_data) < 0) | |
1008 | return -1; | |
1009 | ||
1010 | data->previous_type = type; | |
1011 | data->previous_offset = offset; | |
1012 | ||
1013 | return 0; | |
1014 | } | |
1015 | ||
1016 | static void kvi_from_source(struct config_source *cs, | |
1017 | enum config_scope scope, | |
1018 | struct key_value_info *out) | |
1019 | { | |
1020 | out->filename = strintern(cs->name); | |
1021 | out->origin_type = cs->origin_type; | |
1022 | out->linenr = cs->linenr; | |
1023 | out->scope = scope; | |
1024 | out->path = cs->path; | |
1025 | } | |
1026 | ||
1027 | static int git_parse_source(struct config_source *cs, config_fn_t fn, | |
1028 | struct key_value_info *kvi, void *data, | |
1029 | const struct config_options *opts) | |
1030 | { | |
1031 | int comment = 0; | |
1032 | size_t baselen = 0; | |
1033 | struct strbuf *var = &cs->var; | |
1034 | int error_return = 0; | |
1035 | char *error_msg = NULL; | |
1036 | ||
1037 | /* U+FEFF Byte Order Mark in UTF8 */ | |
1038 | const char *bomptr = utf8_bom; | |
1039 | ||
1040 | /* For the parser event callback */ | |
1041 | struct parse_event_data event_data = { | |
1042 | CONFIG_EVENT_EOF, 0, opts | |
1043 | }; | |
1044 | ||
1045 | for (;;) { | |
1046 | int c; | |
1047 | ||
1048 | c = get_next_char(cs); | |
1049 | if (bomptr && *bomptr) { | |
1050 | /* We are at the file beginning; skip UTF8-encoded BOM | |
1051 | * if present. Sane editors won't put this in on their | |
1052 | * own, but e.g. Windows Notepad will do it happily. */ | |
1053 | if (c == (*bomptr & 0377)) { | |
1054 | bomptr++; | |
1055 | continue; | |
1056 | } else { | |
1057 | /* Do not tolerate partial BOM. */ | |
1058 | if (bomptr != utf8_bom) | |
1059 | break; | |
1060 | /* No BOM at file beginning. Cool. */ | |
1061 | bomptr = NULL; | |
1062 | } | |
1063 | } | |
1064 | if (c == '\n') { | |
1065 | if (cs->eof) { | |
1066 | if (do_event(cs, CONFIG_EVENT_EOF, &event_data) < 0) | |
1067 | return -1; | |
1068 | return 0; | |
1069 | } | |
1070 | if (do_event(cs, CONFIG_EVENT_WHITESPACE, &event_data) < 0) | |
1071 | return -1; | |
1072 | comment = 0; | |
1073 | continue; | |
1074 | } | |
1075 | if (comment) | |
1076 | continue; | |
1077 | if (isspace(c)) { | |
1078 | if (do_event(cs, CONFIG_EVENT_WHITESPACE, &event_data) < 0) | |
1079 | return -1; | |
1080 | continue; | |
1081 | } | |
1082 | if (c == '#' || c == ';') { | |
1083 | if (do_event(cs, CONFIG_EVENT_COMMENT, &event_data) < 0) | |
1084 | return -1; | |
1085 | comment = 1; | |
1086 | continue; | |
1087 | } | |
1088 | if (c == '[') { | |
1089 | if (do_event(cs, CONFIG_EVENT_SECTION, &event_data) < 0) | |
1090 | return -1; | |
1091 | ||
1092 | /* Reset prior to determining a new stem */ | |
1093 | strbuf_reset(var); | |
1094 | if (get_base_var(cs, var) < 0 || var->len < 1) | |
1095 | break; | |
1096 | strbuf_addch(var, '.'); | |
1097 | baselen = var->len; | |
1098 | continue; | |
1099 | } | |
1100 | if (!isalpha(c)) | |
1101 | break; | |
1102 | ||
1103 | if (do_event(cs, CONFIG_EVENT_ENTRY, &event_data) < 0) | |
1104 | return -1; | |
1105 | ||
1106 | /* | |
1107 | * Truncate the var name back to the section header | |
1108 | * stem prior to grabbing the suffix part of the name | |
1109 | * and the value. | |
1110 | */ | |
1111 | strbuf_setlen(var, baselen); | |
1112 | strbuf_addch(var, tolower(c)); | |
1113 | if (get_value(cs, kvi, fn, data, var) < 0) | |
1114 | break; | |
1115 | } | |
1116 | ||
1117 | if (do_event(cs, CONFIG_EVENT_ERROR, &event_data) < 0) | |
1118 | return -1; | |
1119 | ||
1120 | switch (cs->origin_type) { | |
1121 | case CONFIG_ORIGIN_BLOB: | |
1122 | error_msg = xstrfmt(_("bad config line %d in blob %s"), | |
1123 | cs->linenr, cs->name); | |
1124 | break; | |
1125 | case CONFIG_ORIGIN_FILE: | |
1126 | error_msg = xstrfmt(_("bad config line %d in file %s"), | |
1127 | cs->linenr, cs->name); | |
1128 | break; | |
1129 | case CONFIG_ORIGIN_STDIN: | |
1130 | error_msg = xstrfmt(_("bad config line %d in standard input"), | |
1131 | cs->linenr); | |
1132 | break; | |
1133 | case CONFIG_ORIGIN_SUBMODULE_BLOB: | |
1134 | error_msg = xstrfmt(_("bad config line %d in submodule-blob %s"), | |
1135 | cs->linenr, cs->name); | |
1136 | break; | |
1137 | case CONFIG_ORIGIN_CMDLINE: | |
1138 | error_msg = xstrfmt(_("bad config line %d in command line %s"), | |
1139 | cs->linenr, cs->name); | |
1140 | break; | |
1141 | default: | |
1142 | error_msg = xstrfmt(_("bad config line %d in %s"), | |
1143 | cs->linenr, cs->name); | |
1144 | } | |
1145 | ||
1146 | switch (opts && opts->error_action ? | |
1147 | opts->error_action : | |
1148 | cs->default_error_action) { | |
1149 | case CONFIG_ERROR_DIE: | |
1150 | die("%s", error_msg); | |
1151 | break; | |
1152 | case CONFIG_ERROR_ERROR: | |
1153 | error_return = error("%s", error_msg); | |
1154 | break; | |
1155 | case CONFIG_ERROR_SILENT: | |
1156 | error_return = -1; | |
1157 | break; | |
1158 | case CONFIG_ERROR_UNSET: | |
1159 | BUG("config error action unset"); | |
1160 | } | |
1161 | ||
1162 | free(error_msg); | |
1163 | return error_return; | |
1164 | } | |
1165 | ||
1166 | NORETURN | |
1167 | static void die_bad_number(const char *name, const char *value, | |
1168 | const struct key_value_info *kvi) | |
1169 | { | |
1170 | const char *error_type = (errno == ERANGE) ? | |
1171 | N_("out of range") : N_("invalid unit"); | |
1172 | const char *bad_numeric = N_("bad numeric config value '%s' for '%s': %s"); | |
1173 | ||
1174 | if (!kvi) | |
1175 | BUG("kvi should not be NULL"); | |
1176 | ||
1177 | if (!value) | |
1178 | value = ""; | |
1179 | ||
1180 | if (!kvi->filename) | |
1181 | die(_(bad_numeric), value, name, _(error_type)); | |
1182 | ||
1183 | switch (kvi->origin_type) { | |
1184 | case CONFIG_ORIGIN_BLOB: | |
1185 | die(_("bad numeric config value '%s' for '%s' in blob %s: %s"), | |
1186 | value, name, kvi->filename, _(error_type)); | |
1187 | case CONFIG_ORIGIN_FILE: | |
1188 | die(_("bad numeric config value '%s' for '%s' in file %s: %s"), | |
1189 | value, name, kvi->filename, _(error_type)); | |
1190 | case CONFIG_ORIGIN_STDIN: | |
1191 | die(_("bad numeric config value '%s' for '%s' in standard input: %s"), | |
1192 | value, name, _(error_type)); | |
1193 | case CONFIG_ORIGIN_SUBMODULE_BLOB: | |
1194 | die(_("bad numeric config value '%s' for '%s' in submodule-blob %s: %s"), | |
1195 | value, name, kvi->filename, _(error_type)); | |
1196 | case CONFIG_ORIGIN_CMDLINE: | |
1197 | die(_("bad numeric config value '%s' for '%s' in command line %s: %s"), | |
1198 | value, name, kvi->filename, _(error_type)); | |
1199 | default: | |
1200 | die(_("bad numeric config value '%s' for '%s' in %s: %s"), | |
1201 | value, name, kvi->filename, _(error_type)); | |
1202 | } | |
1203 | } | |
1204 | ||
1205 | int git_config_int(const char *name, const char *value, | |
1206 | const struct key_value_info *kvi) | |
1207 | { | |
1208 | int ret; | |
1209 | if (!git_parse_int(value, &ret)) | |
1210 | die_bad_number(name, value, kvi); | |
1211 | return ret; | |
1212 | } | |
1213 | ||
1214 | int64_t git_config_int64(const char *name, const char *value, | |
1215 | const struct key_value_info *kvi) | |
1216 | { | |
1217 | int64_t ret; | |
1218 | if (!git_parse_int64(value, &ret)) | |
1219 | die_bad_number(name, value, kvi); | |
1220 | return ret; | |
1221 | } | |
1222 | ||
1223 | unsigned long git_config_ulong(const char *name, const char *value, | |
1224 | const struct key_value_info *kvi) | |
1225 | { | |
1226 | unsigned long ret; | |
1227 | if (!git_parse_ulong(value, &ret)) | |
1228 | die_bad_number(name, value, kvi); | |
1229 | return ret; | |
1230 | } | |
1231 | ||
1232 | ssize_t git_config_ssize_t(const char *name, const char *value, | |
1233 | const struct key_value_info *kvi) | |
1234 | { | |
1235 | ssize_t ret; | |
1236 | if (!git_parse_ssize_t(value, &ret)) | |
1237 | die_bad_number(name, value, kvi); | |
1238 | return ret; | |
1239 | } | |
1240 | ||
1241 | static const struct fsync_component_name { | |
1242 | const char *name; | |
1243 | enum fsync_component component_bits; | |
1244 | } fsync_component_names[] = { | |
1245 | { "loose-object", FSYNC_COMPONENT_LOOSE_OBJECT }, | |
1246 | { "pack", FSYNC_COMPONENT_PACK }, | |
1247 | { "pack-metadata", FSYNC_COMPONENT_PACK_METADATA }, | |
1248 | { "commit-graph", FSYNC_COMPONENT_COMMIT_GRAPH }, | |
1249 | { "index", FSYNC_COMPONENT_INDEX }, | |
1250 | { "objects", FSYNC_COMPONENTS_OBJECTS }, | |
1251 | { "reference", FSYNC_COMPONENT_REFERENCE }, | |
1252 | { "derived-metadata", FSYNC_COMPONENTS_DERIVED_METADATA }, | |
1253 | { "committed", FSYNC_COMPONENTS_COMMITTED }, | |
1254 | { "added", FSYNC_COMPONENTS_ADDED }, | |
1255 | { "all", FSYNC_COMPONENTS_ALL }, | |
1256 | }; | |
1257 | ||
1258 | static enum fsync_component parse_fsync_components(const char *var, const char *string) | |
1259 | { | |
1260 | enum fsync_component current = FSYNC_COMPONENTS_PLATFORM_DEFAULT; | |
1261 | enum fsync_component positive = 0, negative = 0; | |
1262 | ||
1263 | while (string) { | |
1264 | int i; | |
1265 | size_t len; | |
1266 | const char *ep; | |
1267 | int negated = 0; | |
1268 | int found = 0; | |
1269 | ||
1270 | string = string + strspn(string, ", \t\n\r"); | |
1271 | ep = strchrnul(string, ','); | |
1272 | len = ep - string; | |
1273 | if (!strcmp(string, "none")) { | |
1274 | current = FSYNC_COMPONENT_NONE; | |
1275 | goto next_name; | |
1276 | } | |
1277 | ||
1278 | if (*string == '-') { | |
1279 | negated = 1; | |
1280 | string++; | |
1281 | len--; | |
1282 | if (!len) | |
1283 | warning(_("invalid value for variable %s"), var); | |
1284 | } | |
1285 | ||
1286 | if (!len) | |
1287 | break; | |
1288 | ||
1289 | for (i = 0; i < ARRAY_SIZE(fsync_component_names); ++i) { | |
1290 | const struct fsync_component_name *n = &fsync_component_names[i]; | |
1291 | ||
1292 | if (strncmp(n->name, string, len)) | |
1293 | continue; | |
1294 | ||
1295 | found = 1; | |
1296 | if (negated) | |
1297 | negative |= n->component_bits; | |
1298 | else | |
1299 | positive |= n->component_bits; | |
1300 | } | |
1301 | ||
1302 | if (!found) { | |
1303 | char *component = xstrndup(string, len); | |
1304 | warning(_("ignoring unknown core.fsync component '%s'"), component); | |
1305 | free(component); | |
1306 | } | |
1307 | ||
1308 | next_name: | |
1309 | string = ep; | |
1310 | } | |
1311 | ||
1312 | return (current & ~negative) | positive; | |
1313 | } | |
1314 | ||
1315 | int git_config_bool_or_int(const char *name, const char *value, | |
1316 | const struct key_value_info *kvi, int *is_bool) | |
1317 | { | |
1318 | int v = git_parse_maybe_bool_text(value); | |
1319 | if (0 <= v) { | |
1320 | *is_bool = 1; | |
1321 | return v; | |
1322 | } | |
1323 | *is_bool = 0; | |
1324 | return git_config_int(name, value, kvi); | |
1325 | } | |
1326 | ||
1327 | int git_config_bool(const char *name, const char *value) | |
1328 | { | |
1329 | int v = git_parse_maybe_bool(value); | |
1330 | if (v < 0) | |
1331 | die(_("bad boolean config value '%s' for '%s'"), value, name); | |
1332 | return v; | |
1333 | } | |
1334 | ||
1335 | int git_config_string(const char **dest, const char *var, const char *value) | |
1336 | { | |
1337 | if (!value) | |
1338 | return config_error_nonbool(var); | |
1339 | *dest = xstrdup(value); | |
1340 | return 0; | |
1341 | } | |
1342 | ||
1343 | int git_config_pathname(const char **dest, const char *var, const char *value) | |
1344 | { | |
1345 | if (!value) | |
1346 | return config_error_nonbool(var); | |
1347 | *dest = interpolate_path(value, 0); | |
1348 | if (!*dest) | |
1349 | die(_("failed to expand user dir in: '%s'"), value); | |
1350 | return 0; | |
1351 | } | |
1352 | ||
1353 | int git_config_expiry_date(timestamp_t *timestamp, const char *var, const char *value) | |
1354 | { | |
1355 | if (!value) | |
1356 | return config_error_nonbool(var); | |
1357 | if (parse_expiry_date(value, timestamp)) | |
1358 | return error(_("'%s' for '%s' is not a valid timestamp"), | |
1359 | value, var); | |
1360 | return 0; | |
1361 | } | |
1362 | ||
1363 | int git_config_color(char *dest, const char *var, const char *value) | |
1364 | { | |
1365 | if (!value) | |
1366 | return config_error_nonbool(var); | |
1367 | if (color_parse(value, dest) < 0) | |
1368 | return -1; | |
1369 | return 0; | |
1370 | } | |
1371 | ||
1372 | static int git_default_core_config(const char *var, const char *value, | |
1373 | const struct config_context *ctx, void *cb) | |
1374 | { | |
1375 | /* This needs a better name */ | |
1376 | if (!strcmp(var, "core.filemode")) { | |
1377 | trust_executable_bit = git_config_bool(var, value); | |
1378 | return 0; | |
1379 | } | |
1380 | if (!strcmp(var, "core.trustctime")) { | |
1381 | trust_ctime = git_config_bool(var, value); | |
1382 | return 0; | |
1383 | } | |
1384 | if (!strcmp(var, "core.checkstat")) { | |
1385 | if (!value) | |
1386 | return config_error_nonbool(var); | |
1387 | if (!strcasecmp(value, "default")) | |
1388 | check_stat = 1; | |
1389 | else if (!strcasecmp(value, "minimal")) | |
1390 | check_stat = 0; | |
1391 | else | |
1392 | return error(_("invalid value for '%s': '%s'"), | |
1393 | var, value); | |
1394 | } | |
1395 | ||
1396 | if (!strcmp(var, "core.quotepath")) { | |
1397 | quote_path_fully = git_config_bool(var, value); | |
1398 | return 0; | |
1399 | } | |
1400 | ||
1401 | if (!strcmp(var, "core.symlinks")) { | |
1402 | has_symlinks = git_config_bool(var, value); | |
1403 | return 0; | |
1404 | } | |
1405 | ||
1406 | if (!strcmp(var, "core.ignorecase")) { | |
1407 | ignore_case = git_config_bool(var, value); | |
1408 | return 0; | |
1409 | } | |
1410 | ||
1411 | if (!strcmp(var, "core.attributesfile")) | |
1412 | return git_config_pathname(&git_attributes_file, var, value); | |
1413 | ||
1414 | if (!strcmp(var, "core.hookspath")) | |
1415 | return git_config_pathname(&git_hooks_path, var, value); | |
1416 | ||
1417 | if (!strcmp(var, "core.bare")) { | |
1418 | is_bare_repository_cfg = git_config_bool(var, value); | |
1419 | return 0; | |
1420 | } | |
1421 | ||
1422 | if (!strcmp(var, "core.ignorestat")) { | |
1423 | assume_unchanged = git_config_bool(var, value); | |
1424 | return 0; | |
1425 | } | |
1426 | ||
1427 | if (!strcmp(var, "core.prefersymlinkrefs")) { | |
1428 | prefer_symlink_refs = git_config_bool(var, value); | |
1429 | return 0; | |
1430 | } | |
1431 | ||
1432 | if (!strcmp(var, "core.logallrefupdates")) { | |
1433 | if (value && !strcasecmp(value, "always")) | |
1434 | log_all_ref_updates = LOG_REFS_ALWAYS; | |
1435 | else if (git_config_bool(var, value)) | |
1436 | log_all_ref_updates = LOG_REFS_NORMAL; | |
1437 | else | |
1438 | log_all_ref_updates = LOG_REFS_NONE; | |
1439 | return 0; | |
1440 | } | |
1441 | ||
1442 | if (!strcmp(var, "core.warnambiguousrefs")) { | |
1443 | warn_ambiguous_refs = git_config_bool(var, value); | |
1444 | return 0; | |
1445 | } | |
1446 | ||
1447 | if (!strcmp(var, "core.abbrev")) { | |
1448 | if (!value) | |
1449 | return config_error_nonbool(var); | |
1450 | if (!strcasecmp(value, "auto")) | |
1451 | default_abbrev = -1; | |
1452 | else if (!git_parse_maybe_bool_text(value)) | |
1453 | default_abbrev = the_hash_algo->hexsz; | |
1454 | else { | |
1455 | int abbrev = git_config_int(var, value, ctx->kvi); | |
1456 | if (abbrev < minimum_abbrev || abbrev > the_hash_algo->hexsz) | |
1457 | return error(_("abbrev length out of range: %d"), abbrev); | |
1458 | default_abbrev = abbrev; | |
1459 | } | |
1460 | return 0; | |
1461 | } | |
1462 | ||
1463 | if (!strcmp(var, "core.disambiguate")) | |
1464 | return set_disambiguate_hint_config(var, value); | |
1465 | ||
1466 | if (!strcmp(var, "core.loosecompression")) { | |
1467 | int level = git_config_int(var, value, ctx->kvi); | |
1468 | if (level == -1) | |
1469 | level = Z_DEFAULT_COMPRESSION; | |
1470 | else if (level < 0 || level > Z_BEST_COMPRESSION) | |
1471 | die(_("bad zlib compression level %d"), level); | |
1472 | zlib_compression_level = level; | |
1473 | zlib_compression_seen = 1; | |
1474 | return 0; | |
1475 | } | |
1476 | ||
1477 | if (!strcmp(var, "core.compression")) { | |
1478 | int level = git_config_int(var, value, ctx->kvi); | |
1479 | if (level == -1) | |
1480 | level = Z_DEFAULT_COMPRESSION; | |
1481 | else if (level < 0 || level > Z_BEST_COMPRESSION) | |
1482 | die(_("bad zlib compression level %d"), level); | |
1483 | if (!zlib_compression_seen) | |
1484 | zlib_compression_level = level; | |
1485 | if (!pack_compression_seen) | |
1486 | pack_compression_level = level; | |
1487 | return 0; | |
1488 | } | |
1489 | ||
1490 | if (!strcmp(var, "core.packedgitwindowsize")) { | |
1491 | int pgsz_x2 = getpagesize() * 2; | |
1492 | packed_git_window_size = git_config_ulong(var, value, ctx->kvi); | |
1493 | ||
1494 | /* This value must be multiple of (pagesize * 2) */ | |
1495 | packed_git_window_size /= pgsz_x2; | |
1496 | if (packed_git_window_size < 1) | |
1497 | packed_git_window_size = 1; | |
1498 | packed_git_window_size *= pgsz_x2; | |
1499 | return 0; | |
1500 | } | |
1501 | ||
1502 | if (!strcmp(var, "core.bigfilethreshold")) { | |
1503 | big_file_threshold = git_config_ulong(var, value, ctx->kvi); | |
1504 | return 0; | |
1505 | } | |
1506 | ||
1507 | if (!strcmp(var, "core.packedgitlimit")) { | |
1508 | packed_git_limit = git_config_ulong(var, value, ctx->kvi); | |
1509 | return 0; | |
1510 | } | |
1511 | ||
1512 | if (!strcmp(var, "core.deltabasecachelimit")) { | |
1513 | delta_base_cache_limit = git_config_ulong(var, value, ctx->kvi); | |
1514 | return 0; | |
1515 | } | |
1516 | ||
1517 | if (!strcmp(var, "core.autocrlf")) { | |
1518 | if (value && !strcasecmp(value, "input")) { | |
1519 | auto_crlf = AUTO_CRLF_INPUT; | |
1520 | return 0; | |
1521 | } | |
1522 | auto_crlf = git_config_bool(var, value); | |
1523 | return 0; | |
1524 | } | |
1525 | ||
1526 | if (!strcmp(var, "core.safecrlf")) { | |
1527 | int eol_rndtrp_die; | |
1528 | if (value && !strcasecmp(value, "warn")) { | |
1529 | global_conv_flags_eol = CONV_EOL_RNDTRP_WARN; | |
1530 | return 0; | |
1531 | } | |
1532 | eol_rndtrp_die = git_config_bool(var, value); | |
1533 | global_conv_flags_eol = eol_rndtrp_die ? | |
1534 | CONV_EOL_RNDTRP_DIE : 0; | |
1535 | return 0; | |
1536 | } | |
1537 | ||
1538 | if (!strcmp(var, "core.eol")) { | |
1539 | if (value && !strcasecmp(value, "lf")) | |
1540 | core_eol = EOL_LF; | |
1541 | else if (value && !strcasecmp(value, "crlf")) | |
1542 | core_eol = EOL_CRLF; | |
1543 | else if (value && !strcasecmp(value, "native")) | |
1544 | core_eol = EOL_NATIVE; | |
1545 | else | |
1546 | core_eol = EOL_UNSET; | |
1547 | return 0; | |
1548 | } | |
1549 | ||
1550 | if (!strcmp(var, "core.checkroundtripencoding")) | |
1551 | return git_config_string(&check_roundtrip_encoding, var, value); | |
1552 | ||
1553 | if (!strcmp(var, "core.notesref")) { | |
1554 | if (!value) | |
1555 | return config_error_nonbool(var); | |
1556 | notes_ref_name = xstrdup(value); | |
1557 | return 0; | |
1558 | } | |
1559 | ||
1560 | if (!strcmp(var, "core.editor")) | |
1561 | return git_config_string(&editor_program, var, value); | |
1562 | ||
1563 | if (!strcmp(var, "core.commentchar")) { | |
1564 | if (!value) | |
1565 | return config_error_nonbool(var); | |
1566 | else if (!strcasecmp(value, "auto")) | |
1567 | auto_comment_line_char = 1; | |
1568 | else if (value[0] && !value[1]) { | |
1569 | if (value[0] == '\n') | |
1570 | return error(_("core.commentChar cannot be newline")); | |
1571 | comment_line_str = xstrfmt("%c", value[0]); | |
1572 | auto_comment_line_char = 0; | |
1573 | } else | |
1574 | return error(_("core.commentChar should only be one ASCII character")); | |
1575 | return 0; | |
1576 | } | |
1577 | ||
1578 | if (!strcmp(var, "core.askpass")) | |
1579 | return git_config_string(&askpass_program, var, value); | |
1580 | ||
1581 | if (!strcmp(var, "core.excludesfile")) | |
1582 | return git_config_pathname(&excludes_file, var, value); | |
1583 | ||
1584 | if (!strcmp(var, "core.whitespace")) { | |
1585 | if (!value) | |
1586 | return config_error_nonbool(var); | |
1587 | whitespace_rule_cfg = parse_whitespace_rule(value); | |
1588 | return 0; | |
1589 | } | |
1590 | ||
1591 | if (!strcmp(var, "core.fsync")) { | |
1592 | if (!value) | |
1593 | return config_error_nonbool(var); | |
1594 | fsync_components = parse_fsync_components(var, value); | |
1595 | return 0; | |
1596 | } | |
1597 | ||
1598 | if (!strcmp(var, "core.fsyncmethod")) { | |
1599 | if (!value) | |
1600 | return config_error_nonbool(var); | |
1601 | if (!strcmp(value, "fsync")) | |
1602 | fsync_method = FSYNC_METHOD_FSYNC; | |
1603 | else if (!strcmp(value, "writeout-only")) | |
1604 | fsync_method = FSYNC_METHOD_WRITEOUT_ONLY; | |
1605 | else if (!strcmp(value, "batch")) | |
1606 | fsync_method = FSYNC_METHOD_BATCH; | |
1607 | else | |
1608 | warning(_("ignoring unknown core.fsyncMethod value '%s'"), value); | |
1609 | ||
1610 | } | |
1611 | ||
1612 | if (!strcmp(var, "core.fsyncobjectfiles")) { | |
1613 | if (fsync_object_files < 0) | |
1614 | warning(_("core.fsyncObjectFiles is deprecated; use core.fsync instead")); | |
1615 | fsync_object_files = git_config_bool(var, value); | |
1616 | return 0; | |
1617 | } | |
1618 | ||
1619 | if (!strcmp(var, "core.preloadindex")) { | |
1620 | core_preload_index = git_config_bool(var, value); | |
1621 | return 0; | |
1622 | } | |
1623 | ||
1624 | if (!strcmp(var, "core.createobject")) { | |
1625 | if (!value) | |
1626 | return config_error_nonbool(var); | |
1627 | if (!strcmp(value, "rename")) | |
1628 | object_creation_mode = OBJECT_CREATION_USES_RENAMES; | |
1629 | else if (!strcmp(value, "link")) | |
1630 | object_creation_mode = OBJECT_CREATION_USES_HARDLINKS; | |
1631 | else | |
1632 | die(_("invalid mode for object creation: %s"), value); | |
1633 | return 0; | |
1634 | } | |
1635 | ||
1636 | if (!strcmp(var, "core.sparsecheckout")) { | |
1637 | core_apply_sparse_checkout = git_config_bool(var, value); | |
1638 | return 0; | |
1639 | } | |
1640 | ||
1641 | if (!strcmp(var, "core.sparsecheckoutcone")) { | |
1642 | core_sparse_checkout_cone = git_config_bool(var, value); | |
1643 | return 0; | |
1644 | } | |
1645 | ||
1646 | if (!strcmp(var, "core.precomposeunicode")) { | |
1647 | precomposed_unicode = git_config_bool(var, value); | |
1648 | return 0; | |
1649 | } | |
1650 | ||
1651 | if (!strcmp(var, "core.protecthfs")) { | |
1652 | protect_hfs = git_config_bool(var, value); | |
1653 | return 0; | |
1654 | } | |
1655 | ||
1656 | if (!strcmp(var, "core.protectntfs")) { | |
1657 | protect_ntfs = git_config_bool(var, value); | |
1658 | return 0; | |
1659 | } | |
1660 | ||
1661 | if (!strcmp(var, "core.maxtreedepth")) { | |
1662 | max_allowed_tree_depth = git_config_int(var, value, ctx->kvi); | |
1663 | return 0; | |
1664 | } | |
1665 | ||
1666 | /* Add other config variables here and to Documentation/config.txt. */ | |
1667 | return platform_core_config(var, value, ctx, cb); | |
1668 | } | |
1669 | ||
1670 | static int git_default_sparse_config(const char *var, const char *value) | |
1671 | { | |
1672 | if (!strcmp(var, "sparse.expectfilesoutsideofpatterns")) { | |
1673 | sparse_expect_files_outside_of_patterns = git_config_bool(var, value); | |
1674 | return 0; | |
1675 | } | |
1676 | ||
1677 | /* Add other config variables here and to Documentation/config/sparse.txt. */ | |
1678 | return 0; | |
1679 | } | |
1680 | ||
1681 | static int git_default_i18n_config(const char *var, const char *value) | |
1682 | { | |
1683 | if (!strcmp(var, "i18n.commitencoding")) | |
1684 | return git_config_string(&git_commit_encoding, var, value); | |
1685 | ||
1686 | if (!strcmp(var, "i18n.logoutputencoding")) | |
1687 | return git_config_string(&git_log_output_encoding, var, value); | |
1688 | ||
1689 | /* Add other config variables here and to Documentation/config.txt. */ | |
1690 | return 0; | |
1691 | } | |
1692 | ||
1693 | static int git_default_branch_config(const char *var, const char *value) | |
1694 | { | |
1695 | if (!strcmp(var, "branch.autosetupmerge")) { | |
1696 | if (value && !strcmp(value, "always")) { | |
1697 | git_branch_track = BRANCH_TRACK_ALWAYS; | |
1698 | return 0; | |
1699 | } else if (value && !strcmp(value, "inherit")) { | |
1700 | git_branch_track = BRANCH_TRACK_INHERIT; | |
1701 | return 0; | |
1702 | } else if (value && !strcmp(value, "simple")) { | |
1703 | git_branch_track = BRANCH_TRACK_SIMPLE; | |
1704 | return 0; | |
1705 | } | |
1706 | git_branch_track = git_config_bool(var, value); | |
1707 | return 0; | |
1708 | } | |
1709 | if (!strcmp(var, "branch.autosetuprebase")) { | |
1710 | if (!value) | |
1711 | return config_error_nonbool(var); | |
1712 | else if (!strcmp(value, "never")) | |
1713 | autorebase = AUTOREBASE_NEVER; | |
1714 | else if (!strcmp(value, "local")) | |
1715 | autorebase = AUTOREBASE_LOCAL; | |
1716 | else if (!strcmp(value, "remote")) | |
1717 | autorebase = AUTOREBASE_REMOTE; | |
1718 | else if (!strcmp(value, "always")) | |
1719 | autorebase = AUTOREBASE_ALWAYS; | |
1720 | else | |
1721 | return error(_("malformed value for %s"), var); | |
1722 | return 0; | |
1723 | } | |
1724 | ||
1725 | /* Add other config variables here and to Documentation/config.txt. */ | |
1726 | return 0; | |
1727 | } | |
1728 | ||
1729 | static int git_default_push_config(const char *var, const char *value) | |
1730 | { | |
1731 | if (!strcmp(var, "push.default")) { | |
1732 | if (!value) | |
1733 | return config_error_nonbool(var); | |
1734 | else if (!strcmp(value, "nothing")) | |
1735 | push_default = PUSH_DEFAULT_NOTHING; | |
1736 | else if (!strcmp(value, "matching")) | |
1737 | push_default = PUSH_DEFAULT_MATCHING; | |
1738 | else if (!strcmp(value, "simple")) | |
1739 | push_default = PUSH_DEFAULT_SIMPLE; | |
1740 | else if (!strcmp(value, "upstream")) | |
1741 | push_default = PUSH_DEFAULT_UPSTREAM; | |
1742 | else if (!strcmp(value, "tracking")) /* deprecated */ | |
1743 | push_default = PUSH_DEFAULT_UPSTREAM; | |
1744 | else if (!strcmp(value, "current")) | |
1745 | push_default = PUSH_DEFAULT_CURRENT; | |
1746 | else { | |
1747 | error(_("malformed value for %s: %s"), var, value); | |
1748 | return error(_("must be one of nothing, matching, simple, " | |
1749 | "upstream or current")); | |
1750 | } | |
1751 | return 0; | |
1752 | } | |
1753 | ||
1754 | /* Add other config variables here and to Documentation/config.txt. */ | |
1755 | return 0; | |
1756 | } | |
1757 | ||
1758 | static int git_default_mailmap_config(const char *var, const char *value) | |
1759 | { | |
1760 | if (!strcmp(var, "mailmap.file")) | |
1761 | return git_config_pathname(&git_mailmap_file, var, value); | |
1762 | if (!strcmp(var, "mailmap.blob")) | |
1763 | return git_config_string(&git_mailmap_blob, var, value); | |
1764 | ||
1765 | /* Add other config variables here and to Documentation/config.txt. */ | |
1766 | return 0; | |
1767 | } | |
1768 | ||
1769 | static int git_default_attr_config(const char *var, const char *value) | |
1770 | { | |
1771 | if (!strcmp(var, "attr.tree")) | |
1772 | return git_config_string(&git_attr_tree, var, value); | |
1773 | ||
1774 | /* | |
1775 | * Add other attribute related config variables here and to | |
1776 | * Documentation/config/attr.txt. | |
1777 | */ | |
1778 | return 0; | |
1779 | } | |
1780 | ||
1781 | int git_default_config(const char *var, const char *value, | |
1782 | const struct config_context *ctx, void *cb) | |
1783 | { | |
1784 | if (starts_with(var, "core.")) | |
1785 | return git_default_core_config(var, value, ctx, cb); | |
1786 | ||
1787 | if (starts_with(var, "user.") || | |
1788 | starts_with(var, "author.") || | |
1789 | starts_with(var, "committer.")) | |
1790 | return git_ident_config(var, value, ctx, cb); | |
1791 | ||
1792 | if (starts_with(var, "i18n.")) | |
1793 | return git_default_i18n_config(var, value); | |
1794 | ||
1795 | if (starts_with(var, "branch.")) | |
1796 | return git_default_branch_config(var, value); | |
1797 | ||
1798 | if (starts_with(var, "push.")) | |
1799 | return git_default_push_config(var, value); | |
1800 | ||
1801 | if (starts_with(var, "mailmap.")) | |
1802 | return git_default_mailmap_config(var, value); | |
1803 | ||
1804 | if (starts_with(var, "attr.")) | |
1805 | return git_default_attr_config(var, value); | |
1806 | ||
1807 | if (starts_with(var, "advice.") || starts_with(var, "color.advice")) | |
1808 | return git_default_advice_config(var, value); | |
1809 | ||
1810 | if (!strcmp(var, "pager.color") || !strcmp(var, "color.pager")) { | |
1811 | pager_use_color = git_config_bool(var,value); | |
1812 | return 0; | |
1813 | } | |
1814 | ||
1815 | if (!strcmp(var, "pack.packsizelimit")) { | |
1816 | pack_size_limit_cfg = git_config_ulong(var, value, ctx->kvi); | |
1817 | return 0; | |
1818 | } | |
1819 | ||
1820 | if (!strcmp(var, "pack.compression")) { | |
1821 | int level = git_config_int(var, value, ctx->kvi); | |
1822 | if (level == -1) | |
1823 | level = Z_DEFAULT_COMPRESSION; | |
1824 | else if (level < 0 || level > Z_BEST_COMPRESSION) | |
1825 | die(_("bad pack compression level %d"), level); | |
1826 | pack_compression_level = level; | |
1827 | pack_compression_seen = 1; | |
1828 | return 0; | |
1829 | } | |
1830 | ||
1831 | if (starts_with(var, "sparse.")) | |
1832 | return git_default_sparse_config(var, value); | |
1833 | ||
1834 | /* Add other config variables here and to Documentation/config.txt. */ | |
1835 | return 0; | |
1836 | } | |
1837 | ||
1838 | /* | |
1839 | * All source specific fields in the union, die_on_error, name and the callbacks | |
1840 | * fgetc, ungetc, ftell of top need to be initialized before calling | |
1841 | * this function. | |
1842 | */ | |
1843 | static int do_config_from(struct config_source *top, config_fn_t fn, | |
1844 | void *data, enum config_scope scope, | |
1845 | const struct config_options *opts) | |
1846 | { | |
1847 | struct key_value_info kvi = KVI_INIT; | |
1848 | int ret; | |
1849 | ||
1850 | /* push config-file parsing state stack */ | |
1851 | top->linenr = 1; | |
1852 | top->eof = 0; | |
1853 | top->total_len = 0; | |
1854 | strbuf_init(&top->value, 1024); | |
1855 | strbuf_init(&top->var, 1024); | |
1856 | kvi_from_source(top, scope, &kvi); | |
1857 | ||
1858 | ret = git_parse_source(top, fn, &kvi, data, opts); | |
1859 | ||
1860 | strbuf_release(&top->value); | |
1861 | strbuf_release(&top->var); | |
1862 | ||
1863 | return ret; | |
1864 | } | |
1865 | ||
1866 | static int do_config_from_file(config_fn_t fn, | |
1867 | const enum config_origin_type origin_type, | |
1868 | const char *name, const char *path, FILE *f, | |
1869 | void *data, enum config_scope scope, | |
1870 | const struct config_options *opts) | |
1871 | { | |
1872 | struct config_source top = CONFIG_SOURCE_INIT; | |
1873 | int ret; | |
1874 | ||
1875 | top.u.file = f; | |
1876 | top.origin_type = origin_type; | |
1877 | top.name = name; | |
1878 | top.path = path; | |
1879 | top.default_error_action = CONFIG_ERROR_DIE; | |
1880 | top.do_fgetc = config_file_fgetc; | |
1881 | top.do_ungetc = config_file_ungetc; | |
1882 | top.do_ftell = config_file_ftell; | |
1883 | ||
1884 | flockfile(f); | |
1885 | ret = do_config_from(&top, fn, data, scope, opts); | |
1886 | funlockfile(f); | |
1887 | return ret; | |
1888 | } | |
1889 | ||
1890 | static int git_config_from_stdin(config_fn_t fn, void *data, | |
1891 | enum config_scope scope) | |
1892 | { | |
1893 | return do_config_from_file(fn, CONFIG_ORIGIN_STDIN, "", NULL, stdin, | |
1894 | data, scope, NULL); | |
1895 | } | |
1896 | ||
1897 | int git_config_from_file_with_options(config_fn_t fn, const char *filename, | |
1898 | void *data, enum config_scope scope, | |
1899 | const struct config_options *opts) | |
1900 | { | |
1901 | int ret = -1; | |
1902 | FILE *f; | |
1903 | ||
1904 | if (!filename) | |
1905 | BUG("filename cannot be NULL"); | |
1906 | f = fopen_or_warn(filename, "r"); | |
1907 | if (f) { | |
1908 | ret = do_config_from_file(fn, CONFIG_ORIGIN_FILE, filename, | |
1909 | filename, f, data, scope, opts); | |
1910 | fclose(f); | |
1911 | } | |
1912 | return ret; | |
1913 | } | |
1914 | ||
1915 | int git_config_from_file(config_fn_t fn, const char *filename, void *data) | |
1916 | { | |
1917 | return git_config_from_file_with_options(fn, filename, data, | |
1918 | CONFIG_SCOPE_UNKNOWN, NULL); | |
1919 | } | |
1920 | ||
1921 | int git_config_from_mem(config_fn_t fn, | |
1922 | const enum config_origin_type origin_type, | |
1923 | const char *name, const char *buf, size_t len, | |
1924 | void *data, enum config_scope scope, | |
1925 | const struct config_options *opts) | |
1926 | { | |
1927 | struct config_source top = CONFIG_SOURCE_INIT; | |
1928 | ||
1929 | top.u.buf.buf = buf; | |
1930 | top.u.buf.len = len; | |
1931 | top.u.buf.pos = 0; | |
1932 | top.origin_type = origin_type; | |
1933 | top.name = name; | |
1934 | top.path = NULL; | |
1935 | top.default_error_action = CONFIG_ERROR_ERROR; | |
1936 | top.do_fgetc = config_buf_fgetc; | |
1937 | top.do_ungetc = config_buf_ungetc; | |
1938 | top.do_ftell = config_buf_ftell; | |
1939 | ||
1940 | return do_config_from(&top, fn, data, scope, opts); | |
1941 | } | |
1942 | ||
1943 | int git_config_from_blob_oid(config_fn_t fn, | |
1944 | const char *name, | |
1945 | struct repository *repo, | |
1946 | const struct object_id *oid, | |
1947 | void *data, | |
1948 | enum config_scope scope) | |
1949 | { | |
1950 | enum object_type type; | |
1951 | char *buf; | |
1952 | unsigned long size; | |
1953 | int ret; | |
1954 | ||
1955 | buf = repo_read_object_file(repo, oid, &type, &size); | |
1956 | if (!buf) | |
1957 | return error(_("unable to load config blob object '%s'"), name); | |
1958 | if (type != OBJ_BLOB) { | |
1959 | free(buf); | |
1960 | return error(_("reference '%s' does not point to a blob"), name); | |
1961 | } | |
1962 | ||
1963 | ret = git_config_from_mem(fn, CONFIG_ORIGIN_BLOB, name, buf, size, | |
1964 | data, scope, NULL); | |
1965 | free(buf); | |
1966 | ||
1967 | return ret; | |
1968 | } | |
1969 | ||
1970 | static int git_config_from_blob_ref(config_fn_t fn, | |
1971 | struct repository *repo, | |
1972 | const char *name, | |
1973 | void *data, | |
1974 | enum config_scope scope) | |
1975 | { | |
1976 | struct object_id oid; | |
1977 | ||
1978 | if (repo_get_oid(repo, name, &oid) < 0) | |
1979 | return error(_("unable to resolve config blob '%s'"), name); | |
1980 | return git_config_from_blob_oid(fn, name, repo, &oid, data, scope); | |
1981 | } | |
1982 | ||
1983 | char *git_system_config(void) | |
1984 | { | |
1985 | char *system_config = xstrdup_or_null(getenv("GIT_CONFIG_SYSTEM")); | |
1986 | if (!system_config) | |
1987 | system_config = system_path(ETC_GITCONFIG); | |
1988 | normalize_path_copy(system_config, system_config); | |
1989 | return system_config; | |
1990 | } | |
1991 | ||
1992 | char *git_global_config(void) | |
1993 | { | |
1994 | char *user_config, *xdg_config; | |
1995 | ||
1996 | git_global_config_paths(&user_config, &xdg_config); | |
1997 | if (!user_config) { | |
1998 | free(xdg_config); | |
1999 | return NULL; | |
2000 | } | |
2001 | ||
2002 | if (access_or_warn(user_config, R_OK, 0) && xdg_config && | |
2003 | !access_or_warn(xdg_config, R_OK, 0)) { | |
2004 | free(user_config); | |
2005 | return xdg_config; | |
2006 | } else { | |
2007 | free(xdg_config); | |
2008 | return user_config; | |
2009 | } | |
2010 | } | |
2011 | ||
2012 | void git_global_config_paths(char **user_out, char **xdg_out) | |
2013 | { | |
2014 | char *user_config = xstrdup_or_null(getenv("GIT_CONFIG_GLOBAL")); | |
2015 | char *xdg_config = NULL; | |
2016 | ||
2017 | if (!user_config) { | |
2018 | user_config = interpolate_path("~/.gitconfig", 0); | |
2019 | xdg_config = xdg_config_home("config"); | |
2020 | } | |
2021 | ||
2022 | *user_out = user_config; | |
2023 | *xdg_out = xdg_config; | |
2024 | } | |
2025 | ||
2026 | int git_config_system(void) | |
2027 | { | |
2028 | return !git_env_bool("GIT_CONFIG_NOSYSTEM", 0); | |
2029 | } | |
2030 | ||
2031 | static int do_git_config_sequence(const struct config_options *opts, | |
2032 | const struct repository *repo, | |
2033 | config_fn_t fn, void *data) | |
2034 | { | |
2035 | int ret = 0; | |
2036 | char *system_config = git_system_config(); | |
2037 | char *xdg_config = NULL; | |
2038 | char *user_config = NULL; | |
2039 | char *repo_config; | |
2040 | char *worktree_config; | |
2041 | ||
2042 | /* | |
2043 | * Ensure that either: | |
2044 | * - the git_dir and commondir are both set, or | |
2045 | * - the git_dir and commondir are both NULL | |
2046 | */ | |
2047 | if (!opts->git_dir != !opts->commondir) | |
2048 | BUG("only one of commondir and git_dir is non-NULL"); | |
2049 | ||
2050 | if (opts->commondir) { | |
2051 | repo_config = mkpathdup("%s/config", opts->commondir); | |
2052 | worktree_config = mkpathdup("%s/config.worktree", opts->git_dir); | |
2053 | } else { | |
2054 | repo_config = NULL; | |
2055 | worktree_config = NULL; | |
2056 | } | |
2057 | ||
2058 | if (git_config_system() && system_config && | |
2059 | !access_or_die(system_config, R_OK, | |
2060 | opts->system_gently ? ACCESS_EACCES_OK : 0)) | |
2061 | ret += git_config_from_file_with_options(fn, system_config, | |
2062 | data, CONFIG_SCOPE_SYSTEM, | |
2063 | NULL); | |
2064 | ||
2065 | git_global_config_paths(&user_config, &xdg_config); | |
2066 | ||
2067 | if (xdg_config && !access_or_die(xdg_config, R_OK, ACCESS_EACCES_OK)) | |
2068 | ret += git_config_from_file_with_options(fn, xdg_config, data, | |
2069 | CONFIG_SCOPE_GLOBAL, NULL); | |
2070 | ||
2071 | if (user_config && !access_or_die(user_config, R_OK, ACCESS_EACCES_OK)) | |
2072 | ret += git_config_from_file_with_options(fn, user_config, data, | |
2073 | CONFIG_SCOPE_GLOBAL, NULL); | |
2074 | ||
2075 | if (!opts->ignore_repo && repo_config && | |
2076 | !access_or_die(repo_config, R_OK, 0)) | |
2077 | ret += git_config_from_file_with_options(fn, repo_config, data, | |
2078 | CONFIG_SCOPE_LOCAL, NULL); | |
2079 | ||
2080 | if (!opts->ignore_worktree && worktree_config && | |
2081 | repo && repo->repository_format_worktree_config && | |
2082 | !access_or_die(worktree_config, R_OK, 0)) { | |
2083 | ret += git_config_from_file_with_options(fn, worktree_config, data, | |
2084 | CONFIG_SCOPE_WORKTREE, | |
2085 | NULL); | |
2086 | } | |
2087 | ||
2088 | if (!opts->ignore_cmdline && git_config_from_parameters(fn, data) < 0) | |
2089 | die(_("unable to parse command-line config")); | |
2090 | ||
2091 | free(system_config); | |
2092 | free(xdg_config); | |
2093 | free(user_config); | |
2094 | free(repo_config); | |
2095 | free(worktree_config); | |
2096 | return ret; | |
2097 | } | |
2098 | ||
2099 | int config_with_options(config_fn_t fn, void *data, | |
2100 | struct git_config_source *config_source, | |
2101 | struct repository *repo, | |
2102 | const struct config_options *opts) | |
2103 | { | |
2104 | struct config_include_data inc = CONFIG_INCLUDE_INIT; | |
2105 | int ret; | |
2106 | ||
2107 | if (opts->respect_includes) { | |
2108 | inc.fn = fn; | |
2109 | inc.data = data; | |
2110 | inc.opts = opts; | |
2111 | inc.repo = repo; | |
2112 | inc.config_source = config_source; | |
2113 | fn = git_config_include; | |
2114 | data = &inc; | |
2115 | } | |
2116 | ||
2117 | /* | |
2118 | * If we have a specific filename, use it. Otherwise, follow the | |
2119 | * regular lookup sequence. | |
2120 | */ | |
2121 | if (config_source && config_source->use_stdin) { | |
2122 | ret = git_config_from_stdin(fn, data, config_source->scope); | |
2123 | } else if (config_source && config_source->file) { | |
2124 | ret = git_config_from_file_with_options(fn, config_source->file, | |
2125 | data, config_source->scope, | |
2126 | NULL); | |
2127 | } else if (config_source && config_source->blob) { | |
2128 | ret = git_config_from_blob_ref(fn, repo, config_source->blob, | |
2129 | data, config_source->scope); | |
2130 | } else { | |
2131 | ret = do_git_config_sequence(opts, repo, fn, data); | |
2132 | } | |
2133 | ||
2134 | if (inc.remote_urls) { | |
2135 | string_list_clear(inc.remote_urls, 0); | |
2136 | FREE_AND_NULL(inc.remote_urls); | |
2137 | } | |
2138 | return ret; | |
2139 | } | |
2140 | ||
2141 | static void configset_iter(struct config_set *set, config_fn_t fn, void *data) | |
2142 | { | |
2143 | int i, value_index; | |
2144 | struct string_list *values; | |
2145 | struct config_set_element *entry; | |
2146 | struct configset_list *list = &set->list; | |
2147 | struct config_context ctx = CONFIG_CONTEXT_INIT; | |
2148 | ||
2149 | for (i = 0; i < list->nr; i++) { | |
2150 | entry = list->items[i].e; | |
2151 | value_index = list->items[i].value_index; | |
2152 | values = &entry->value_list; | |
2153 | ||
2154 | ctx.kvi = values->items[value_index].util; | |
2155 | if (fn(entry->key, values->items[value_index].string, &ctx, data) < 0) | |
2156 | git_die_config_linenr(entry->key, | |
2157 | ctx.kvi->filename, | |
2158 | ctx.kvi->linenr); | |
2159 | } | |
2160 | } | |
2161 | ||
2162 | void read_early_config(config_fn_t cb, void *data) | |
2163 | { | |
2164 | struct config_options opts = {0}; | |
2165 | struct strbuf commondir = STRBUF_INIT; | |
2166 | struct strbuf gitdir = STRBUF_INIT; | |
2167 | ||
2168 | opts.respect_includes = 1; | |
2169 | ||
2170 | if (have_git_dir()) { | |
2171 | opts.commondir = get_git_common_dir(); | |
2172 | opts.git_dir = get_git_dir(); | |
2173 | /* | |
2174 | * When setup_git_directory() was not yet asked to discover the | |
2175 | * GIT_DIR, we ask discover_git_directory() to figure out whether there | |
2176 | * is any repository config we should use (but unlike | |
2177 | * setup_git_directory_gently(), no global state is changed, most | |
2178 | * notably, the current working directory is still the same after the | |
2179 | * call). | |
2180 | */ | |
2181 | } else if (!discover_git_directory(&commondir, &gitdir)) { | |
2182 | opts.commondir = commondir.buf; | |
2183 | opts.git_dir = gitdir.buf; | |
2184 | } | |
2185 | ||
2186 | config_with_options(cb, data, NULL, NULL, &opts); | |
2187 | ||
2188 | strbuf_release(&commondir); | |
2189 | strbuf_release(&gitdir); | |
2190 | } | |
2191 | ||
2192 | /* | |
2193 | * Read config but only enumerate system and global settings. | |
2194 | * Omit any repo-local, worktree-local, or command-line settings. | |
2195 | */ | |
2196 | void read_very_early_config(config_fn_t cb, void *data) | |
2197 | { | |
2198 | struct config_options opts = { 0 }; | |
2199 | ||
2200 | opts.respect_includes = 1; | |
2201 | opts.ignore_repo = 1; | |
2202 | opts.ignore_worktree = 1; | |
2203 | opts.ignore_cmdline = 1; | |
2204 | opts.system_gently = 1; | |
2205 | ||
2206 | config_with_options(cb, data, NULL, NULL, &opts); | |
2207 | } | |
2208 | ||
2209 | RESULT_MUST_BE_USED | |
2210 | static int configset_find_element(struct config_set *set, const char *key, | |
2211 | struct config_set_element **dest) | |
2212 | { | |
2213 | struct config_set_element k; | |
2214 | struct config_set_element *found_entry; | |
2215 | char *normalized_key; | |
2216 | int ret; | |
2217 | ||
2218 | /* | |
2219 | * `key` may come from the user, so normalize it before using it | |
2220 | * for querying entries from the hashmap. | |
2221 | */ | |
2222 | ret = git_config_parse_key(key, &normalized_key, NULL); | |
2223 | if (ret) | |
2224 | return ret; | |
2225 | ||
2226 | hashmap_entry_init(&k.ent, strhash(normalized_key)); | |
2227 | k.key = normalized_key; | |
2228 | found_entry = hashmap_get_entry(&set->config_hash, &k, ent, NULL); | |
2229 | free(normalized_key); | |
2230 | *dest = found_entry; | |
2231 | return 0; | |
2232 | } | |
2233 | ||
2234 | static int configset_add_value(const struct key_value_info *kvi_p, | |
2235 | struct config_set *set, const char *key, | |
2236 | const char *value) | |
2237 | { | |
2238 | struct config_set_element *e; | |
2239 | struct string_list_item *si; | |
2240 | struct configset_list_item *l_item; | |
2241 | struct key_value_info *kv_info = xmalloc(sizeof(*kv_info)); | |
2242 | int ret; | |
2243 | ||
2244 | ret = configset_find_element(set, key, &e); | |
2245 | if (ret) | |
2246 | return ret; | |
2247 | /* | |
2248 | * Since the keys are being fed by git_config*() callback mechanism, they | |
2249 | * are already normalized. So simply add them without any further munging. | |
2250 | */ | |
2251 | if (!e) { | |
2252 | e = xmalloc(sizeof(*e)); | |
2253 | hashmap_entry_init(&e->ent, strhash(key)); | |
2254 | e->key = xstrdup(key); | |
2255 | string_list_init_dup(&e->value_list); | |
2256 | hashmap_add(&set->config_hash, &e->ent); | |
2257 | } | |
2258 | si = string_list_append_nodup(&e->value_list, xstrdup_or_null(value)); | |
2259 | ||
2260 | ALLOC_GROW(set->list.items, set->list.nr + 1, set->list.alloc); | |
2261 | l_item = &set->list.items[set->list.nr++]; | |
2262 | l_item->e = e; | |
2263 | l_item->value_index = e->value_list.nr - 1; | |
2264 | ||
2265 | *kv_info = *kvi_p; | |
2266 | si->util = kv_info; | |
2267 | ||
2268 | return 0; | |
2269 | } | |
2270 | ||
2271 | static int config_set_element_cmp(const void *cmp_data UNUSED, | |
2272 | const struct hashmap_entry *eptr, | |
2273 | const struct hashmap_entry *entry_or_key, | |
2274 | const void *keydata UNUSED) | |
2275 | { | |
2276 | const struct config_set_element *e1, *e2; | |
2277 | ||
2278 | e1 = container_of(eptr, const struct config_set_element, ent); | |
2279 | e2 = container_of(entry_or_key, const struct config_set_element, ent); | |
2280 | ||
2281 | return strcmp(e1->key, e2->key); | |
2282 | } | |
2283 | ||
2284 | void git_configset_init(struct config_set *set) | |
2285 | { | |
2286 | hashmap_init(&set->config_hash, config_set_element_cmp, NULL, 0); | |
2287 | set->hash_initialized = 1; | |
2288 | set->list.nr = 0; | |
2289 | set->list.alloc = 0; | |
2290 | set->list.items = NULL; | |
2291 | } | |
2292 | ||
2293 | void git_configset_clear(struct config_set *set) | |
2294 | { | |
2295 | struct config_set_element *entry; | |
2296 | struct hashmap_iter iter; | |
2297 | if (!set->hash_initialized) | |
2298 | return; | |
2299 | ||
2300 | hashmap_for_each_entry(&set->config_hash, &iter, entry, | |
2301 | ent /* member name */) { | |
2302 | free(entry->key); | |
2303 | string_list_clear(&entry->value_list, 1); | |
2304 | } | |
2305 | hashmap_clear_and_free(&set->config_hash, struct config_set_element, ent); | |
2306 | set->hash_initialized = 0; | |
2307 | free(set->list.items); | |
2308 | set->list.nr = 0; | |
2309 | set->list.alloc = 0; | |
2310 | set->list.items = NULL; | |
2311 | } | |
2312 | ||
2313 | static int config_set_callback(const char *key, const char *value, | |
2314 | const struct config_context *ctx, | |
2315 | void *cb) | |
2316 | { | |
2317 | struct config_set *set = cb; | |
2318 | configset_add_value(ctx->kvi, set, key, value); | |
2319 | return 0; | |
2320 | } | |
2321 | ||
2322 | int git_configset_add_file(struct config_set *set, const char *filename) | |
2323 | { | |
2324 | return git_config_from_file(config_set_callback, filename, set); | |
2325 | } | |
2326 | ||
2327 | int git_configset_get_value(struct config_set *set, const char *key, | |
2328 | const char **value, struct key_value_info *kvi) | |
2329 | { | |
2330 | const struct string_list *values = NULL; | |
2331 | int ret; | |
2332 | struct string_list_item item; | |
2333 | /* | |
2334 | * Follows "last one wins" semantic, i.e., if there are multiple matches for the | |
2335 | * queried key in the files of the configset, the value returned will be the last | |
2336 | * value in the value list for that key. | |
2337 | */ | |
2338 | if ((ret = git_configset_get_value_multi(set, key, &values))) | |
2339 | return ret; | |
2340 | ||
2341 | assert(values->nr > 0); | |
2342 | item = values->items[values->nr - 1]; | |
2343 | *value = item.string; | |
2344 | if (kvi) | |
2345 | *kvi = *((struct key_value_info *)item.util); | |
2346 | return 0; | |
2347 | } | |
2348 | ||
2349 | int git_configset_get_value_multi(struct config_set *set, const char *key, | |
2350 | const struct string_list **dest) | |
2351 | { | |
2352 | struct config_set_element *e; | |
2353 | int ret; | |
2354 | ||
2355 | if ((ret = configset_find_element(set, key, &e))) | |
2356 | return ret; | |
2357 | else if (!e) | |
2358 | return 1; | |
2359 | *dest = &e->value_list; | |
2360 | ||
2361 | return 0; | |
2362 | } | |
2363 | ||
2364 | static int check_multi_string(struct string_list_item *item, void *util) | |
2365 | { | |
2366 | return item->string ? 0 : config_error_nonbool(util); | |
2367 | } | |
2368 | ||
2369 | int git_configset_get_string_multi(struct config_set *cs, const char *key, | |
2370 | const struct string_list **dest) | |
2371 | { | |
2372 | int ret; | |
2373 | ||
2374 | if ((ret = git_configset_get_value_multi(cs, key, dest))) | |
2375 | return ret; | |
2376 | if ((ret = for_each_string_list((struct string_list *)*dest, | |
2377 | check_multi_string, (void *)key))) | |
2378 | return ret; | |
2379 | ||
2380 | return 0; | |
2381 | } | |
2382 | ||
2383 | int git_configset_get(struct config_set *set, const char *key) | |
2384 | { | |
2385 | struct config_set_element *e; | |
2386 | int ret; | |
2387 | ||
2388 | if ((ret = configset_find_element(set, key, &e))) | |
2389 | return ret; | |
2390 | else if (!e) | |
2391 | return 1; | |
2392 | return 0; | |
2393 | } | |
2394 | ||
2395 | int git_configset_get_string(struct config_set *set, const char *key, char **dest) | |
2396 | { | |
2397 | const char *value; | |
2398 | if (!git_configset_get_value(set, key, &value, NULL)) | |
2399 | return git_config_string((const char **)dest, key, value); | |
2400 | else | |
2401 | return 1; | |
2402 | } | |
2403 | ||
2404 | static int git_configset_get_string_tmp(struct config_set *set, const char *key, | |
2405 | const char **dest) | |
2406 | { | |
2407 | const char *value; | |
2408 | if (!git_configset_get_value(set, key, &value, NULL)) { | |
2409 | if (!value) | |
2410 | return config_error_nonbool(key); | |
2411 | *dest = value; | |
2412 | return 0; | |
2413 | } else { | |
2414 | return 1; | |
2415 | } | |
2416 | } | |
2417 | ||
2418 | int git_configset_get_int(struct config_set *set, const char *key, int *dest) | |
2419 | { | |
2420 | const char *value; | |
2421 | struct key_value_info kvi; | |
2422 | ||
2423 | if (!git_configset_get_value(set, key, &value, &kvi)) { | |
2424 | *dest = git_config_int(key, value, &kvi); | |
2425 | return 0; | |
2426 | } else | |
2427 | return 1; | |
2428 | } | |
2429 | ||
2430 | int git_configset_get_ulong(struct config_set *set, const char *key, unsigned long *dest) | |
2431 | { | |
2432 | const char *value; | |
2433 | struct key_value_info kvi; | |
2434 | ||
2435 | if (!git_configset_get_value(set, key, &value, &kvi)) { | |
2436 | *dest = git_config_ulong(key, value, &kvi); | |
2437 | return 0; | |
2438 | } else | |
2439 | return 1; | |
2440 | } | |
2441 | ||
2442 | int git_configset_get_bool(struct config_set *set, const char *key, int *dest) | |
2443 | { | |
2444 | const char *value; | |
2445 | if (!git_configset_get_value(set, key, &value, NULL)) { | |
2446 | *dest = git_config_bool(key, value); | |
2447 | return 0; | |
2448 | } else | |
2449 | return 1; | |
2450 | } | |
2451 | ||
2452 | int git_configset_get_bool_or_int(struct config_set *set, const char *key, | |
2453 | int *is_bool, int *dest) | |
2454 | { | |
2455 | const char *value; | |
2456 | struct key_value_info kvi; | |
2457 | ||
2458 | if (!git_configset_get_value(set, key, &value, &kvi)) { | |
2459 | *dest = git_config_bool_or_int(key, value, &kvi, is_bool); | |
2460 | return 0; | |
2461 | } else | |
2462 | return 1; | |
2463 | } | |
2464 | ||
2465 | int git_configset_get_maybe_bool(struct config_set *set, const char *key, int *dest) | |
2466 | { | |
2467 | const char *value; | |
2468 | if (!git_configset_get_value(set, key, &value, NULL)) { | |
2469 | *dest = git_parse_maybe_bool(value); | |
2470 | if (*dest == -1) | |
2471 | return -1; | |
2472 | return 0; | |
2473 | } else | |
2474 | return 1; | |
2475 | } | |
2476 | ||
2477 | int git_configset_get_pathname(struct config_set *set, const char *key, const char **dest) | |
2478 | { | |
2479 | const char *value; | |
2480 | if (!git_configset_get_value(set, key, &value, NULL)) | |
2481 | return git_config_pathname(dest, key, value); | |
2482 | else | |
2483 | return 1; | |
2484 | } | |
2485 | ||
2486 | /* Functions use to read configuration from a repository */ | |
2487 | static void repo_read_config(struct repository *repo) | |
2488 | { | |
2489 | struct config_options opts = { 0 }; | |
2490 | ||
2491 | opts.respect_includes = 1; | |
2492 | opts.commondir = repo->commondir; | |
2493 | opts.git_dir = repo->gitdir; | |
2494 | ||
2495 | if (!repo->config) | |
2496 | CALLOC_ARRAY(repo->config, 1); | |
2497 | else | |
2498 | git_configset_clear(repo->config); | |
2499 | ||
2500 | git_configset_init(repo->config); | |
2501 | if (config_with_options(config_set_callback, repo->config, NULL, | |
2502 | repo, &opts) < 0) | |
2503 | /* | |
2504 | * config_with_options() normally returns only | |
2505 | * zero, as most errors are fatal, and | |
2506 | * non-fatal potential errors are guarded by "if" | |
2507 | * statements that are entered only when no error is | |
2508 | * possible. | |
2509 | * | |
2510 | * If we ever encounter a non-fatal error, it means | |
2511 | * something went really wrong and we should stop | |
2512 | * immediately. | |
2513 | */ | |
2514 | die(_("unknown error occurred while reading the configuration files")); | |
2515 | } | |
2516 | ||
2517 | static void git_config_check_init(struct repository *repo) | |
2518 | { | |
2519 | if (repo->config && repo->config->hash_initialized) | |
2520 | return; | |
2521 | repo_read_config(repo); | |
2522 | } | |
2523 | ||
2524 | static void repo_config_clear(struct repository *repo) | |
2525 | { | |
2526 | if (!repo->config || !repo->config->hash_initialized) | |
2527 | return; | |
2528 | git_configset_clear(repo->config); | |
2529 | } | |
2530 | ||
2531 | void repo_config(struct repository *repo, config_fn_t fn, void *data) | |
2532 | { | |
2533 | git_config_check_init(repo); | |
2534 | configset_iter(repo->config, fn, data); | |
2535 | } | |
2536 | ||
2537 | int repo_config_get(struct repository *repo, const char *key) | |
2538 | { | |
2539 | git_config_check_init(repo); | |
2540 | return git_configset_get(repo->config, key); | |
2541 | } | |
2542 | ||
2543 | int repo_config_get_value(struct repository *repo, | |
2544 | const char *key, const char **value) | |
2545 | { | |
2546 | git_config_check_init(repo); | |
2547 | return git_configset_get_value(repo->config, key, value, NULL); | |
2548 | } | |
2549 | ||
2550 | int repo_config_get_value_multi(struct repository *repo, const char *key, | |
2551 | const struct string_list **dest) | |
2552 | { | |
2553 | git_config_check_init(repo); | |
2554 | return git_configset_get_value_multi(repo->config, key, dest); | |
2555 | } | |
2556 | ||
2557 | int repo_config_get_string_multi(struct repository *repo, const char *key, | |
2558 | const struct string_list **dest) | |
2559 | { | |
2560 | git_config_check_init(repo); | |
2561 | return git_configset_get_string_multi(repo->config, key, dest); | |
2562 | } | |
2563 | ||
2564 | int repo_config_get_string(struct repository *repo, | |
2565 | const char *key, char **dest) | |
2566 | { | |
2567 | int ret; | |
2568 | git_config_check_init(repo); | |
2569 | ret = git_configset_get_string(repo->config, key, dest); | |
2570 | if (ret < 0) | |
2571 | git_die_config(key, NULL); | |
2572 | return ret; | |
2573 | } | |
2574 | ||
2575 | int repo_config_get_string_tmp(struct repository *repo, | |
2576 | const char *key, const char **dest) | |
2577 | { | |
2578 | int ret; | |
2579 | git_config_check_init(repo); | |
2580 | ret = git_configset_get_string_tmp(repo->config, key, dest); | |
2581 | if (ret < 0) | |
2582 | git_die_config(key, NULL); | |
2583 | return ret; | |
2584 | } | |
2585 | ||
2586 | int repo_config_get_int(struct repository *repo, | |
2587 | const char *key, int *dest) | |
2588 | { | |
2589 | git_config_check_init(repo); | |
2590 | return git_configset_get_int(repo->config, key, dest); | |
2591 | } | |
2592 | ||
2593 | int repo_config_get_ulong(struct repository *repo, | |
2594 | const char *key, unsigned long *dest) | |
2595 | { | |
2596 | git_config_check_init(repo); | |
2597 | return git_configset_get_ulong(repo->config, key, dest); | |
2598 | } | |
2599 | ||
2600 | int repo_config_get_bool(struct repository *repo, | |
2601 | const char *key, int *dest) | |
2602 | { | |
2603 | git_config_check_init(repo); | |
2604 | return git_configset_get_bool(repo->config, key, dest); | |
2605 | } | |
2606 | ||
2607 | int repo_config_get_bool_or_int(struct repository *repo, | |
2608 | const char *key, int *is_bool, int *dest) | |
2609 | { | |
2610 | git_config_check_init(repo); | |
2611 | return git_configset_get_bool_or_int(repo->config, key, is_bool, dest); | |
2612 | } | |
2613 | ||
2614 | int repo_config_get_maybe_bool(struct repository *repo, | |
2615 | const char *key, int *dest) | |
2616 | { | |
2617 | git_config_check_init(repo); | |
2618 | return git_configset_get_maybe_bool(repo->config, key, dest); | |
2619 | } | |
2620 | ||
2621 | int repo_config_get_pathname(struct repository *repo, | |
2622 | const char *key, const char **dest) | |
2623 | { | |
2624 | int ret; | |
2625 | git_config_check_init(repo); | |
2626 | ret = git_configset_get_pathname(repo->config, key, dest); | |
2627 | if (ret < 0) | |
2628 | git_die_config(key, NULL); | |
2629 | return ret; | |
2630 | } | |
2631 | ||
2632 | /* Read values into protected_config. */ | |
2633 | static void read_protected_config(void) | |
2634 | { | |
2635 | struct config_options opts = { | |
2636 | .respect_includes = 1, | |
2637 | .ignore_repo = 1, | |
2638 | .ignore_worktree = 1, | |
2639 | .system_gently = 1, | |
2640 | }; | |
2641 | ||
2642 | git_configset_init(&protected_config); | |
2643 | config_with_options(config_set_callback, &protected_config, NULL, | |
2644 | NULL, &opts); | |
2645 | } | |
2646 | ||
2647 | void git_protected_config(config_fn_t fn, void *data) | |
2648 | { | |
2649 | if (!protected_config.hash_initialized) | |
2650 | read_protected_config(); | |
2651 | configset_iter(&protected_config, fn, data); | |
2652 | } | |
2653 | ||
2654 | /* Functions used historically to read configuration from 'the_repository' */ | |
2655 | void git_config(config_fn_t fn, void *data) | |
2656 | { | |
2657 | repo_config(the_repository, fn, data); | |
2658 | } | |
2659 | ||
2660 | void git_config_clear(void) | |
2661 | { | |
2662 | repo_config_clear(the_repository); | |
2663 | } | |
2664 | ||
2665 | int git_config_get(const char *key) | |
2666 | { | |
2667 | return repo_config_get(the_repository, key); | |
2668 | } | |
2669 | ||
2670 | int git_config_get_value(const char *key, const char **value) | |
2671 | { | |
2672 | return repo_config_get_value(the_repository, key, value); | |
2673 | } | |
2674 | ||
2675 | int git_config_get_value_multi(const char *key, const struct string_list **dest) | |
2676 | { | |
2677 | return repo_config_get_value_multi(the_repository, key, dest); | |
2678 | } | |
2679 | ||
2680 | int git_config_get_string_multi(const char *key, | |
2681 | const struct string_list **dest) | |
2682 | { | |
2683 | return repo_config_get_string_multi(the_repository, key, dest); | |
2684 | } | |
2685 | ||
2686 | int git_config_get_string(const char *key, char **dest) | |
2687 | { | |
2688 | return repo_config_get_string(the_repository, key, dest); | |
2689 | } | |
2690 | ||
2691 | int git_config_get_string_tmp(const char *key, const char **dest) | |
2692 | { | |
2693 | return repo_config_get_string_tmp(the_repository, key, dest); | |
2694 | } | |
2695 | ||
2696 | int git_config_get_int(const char *key, int *dest) | |
2697 | { | |
2698 | return repo_config_get_int(the_repository, key, dest); | |
2699 | } | |
2700 | ||
2701 | int git_config_get_ulong(const char *key, unsigned long *dest) | |
2702 | { | |
2703 | return repo_config_get_ulong(the_repository, key, dest); | |
2704 | } | |
2705 | ||
2706 | int git_config_get_bool(const char *key, int *dest) | |
2707 | { | |
2708 | return repo_config_get_bool(the_repository, key, dest); | |
2709 | } | |
2710 | ||
2711 | int git_config_get_bool_or_int(const char *key, int *is_bool, int *dest) | |
2712 | { | |
2713 | return repo_config_get_bool_or_int(the_repository, key, is_bool, dest); | |
2714 | } | |
2715 | ||
2716 | int git_config_get_maybe_bool(const char *key, int *dest) | |
2717 | { | |
2718 | return repo_config_get_maybe_bool(the_repository, key, dest); | |
2719 | } | |
2720 | ||
2721 | int git_config_get_pathname(const char *key, const char **dest) | |
2722 | { | |
2723 | return repo_config_get_pathname(the_repository, key, dest); | |
2724 | } | |
2725 | ||
2726 | int git_config_get_expiry(const char *key, const char **output) | |
2727 | { | |
2728 | int ret = git_config_get_string(key, (char **)output); | |
2729 | if (ret) | |
2730 | return ret; | |
2731 | if (strcmp(*output, "now")) { | |
2732 | timestamp_t now = approxidate("now"); | |
2733 | if (approxidate(*output) >= now) | |
2734 | git_die_config(key, _("Invalid %s: '%s'"), key, *output); | |
2735 | } | |
2736 | return ret; | |
2737 | } | |
2738 | ||
2739 | int git_config_get_expiry_in_days(const char *key, timestamp_t *expiry, timestamp_t now) | |
2740 | { | |
2741 | const char *expiry_string; | |
2742 | intmax_t days; | |
2743 | timestamp_t when; | |
2744 | ||
2745 | if (git_config_get_string_tmp(key, &expiry_string)) | |
2746 | return 1; /* no such thing */ | |
2747 | ||
2748 | if (git_parse_signed(expiry_string, &days, maximum_signed_value_of_type(int))) { | |
2749 | const int scale = 86400; | |
2750 | *expiry = now - days * scale; | |
2751 | return 0; | |
2752 | } | |
2753 | ||
2754 | if (!parse_expiry_date(expiry_string, &when)) { | |
2755 | *expiry = when; | |
2756 | return 0; | |
2757 | } | |
2758 | return -1; /* thing exists but cannot be parsed */ | |
2759 | } | |
2760 | ||
2761 | int git_config_get_split_index(void) | |
2762 | { | |
2763 | int val; | |
2764 | ||
2765 | if (!git_config_get_maybe_bool("core.splitindex", &val)) | |
2766 | return val; | |
2767 | ||
2768 | return -1; /* default value */ | |
2769 | } | |
2770 | ||
2771 | int git_config_get_max_percent_split_change(void) | |
2772 | { | |
2773 | int val = -1; | |
2774 | ||
2775 | if (!git_config_get_int("splitindex.maxpercentchange", &val)) { | |
2776 | if (0 <= val && val <= 100) | |
2777 | return val; | |
2778 | ||
2779 | return error(_("splitIndex.maxPercentChange value '%d' " | |
2780 | "should be between 0 and 100"), val); | |
2781 | } | |
2782 | ||
2783 | return -1; /* default value */ | |
2784 | } | |
2785 | ||
2786 | int git_config_get_index_threads(int *dest) | |
2787 | { | |
2788 | int is_bool, val; | |
2789 | ||
2790 | val = git_env_ulong("GIT_TEST_INDEX_THREADS", 0); | |
2791 | if (val) { | |
2792 | *dest = val; | |
2793 | return 0; | |
2794 | } | |
2795 | ||
2796 | if (!git_config_get_bool_or_int("index.threads", &is_bool, &val)) { | |
2797 | if (is_bool) | |
2798 | *dest = val ? 0 : 1; | |
2799 | else | |
2800 | *dest = val; | |
2801 | return 0; | |
2802 | } | |
2803 | ||
2804 | return 1; | |
2805 | } | |
2806 | ||
2807 | NORETURN | |
2808 | void git_die_config_linenr(const char *key, const char *filename, int linenr) | |
2809 | { | |
2810 | if (!filename) | |
2811 | die(_("unable to parse '%s' from command-line config"), key); | |
2812 | else | |
2813 | die(_("bad config variable '%s' in file '%s' at line %d"), | |
2814 | key, filename, linenr); | |
2815 | } | |
2816 | ||
2817 | NORETURN __attribute__((format(printf, 2, 3))) | |
2818 | void git_die_config(const char *key, const char *err, ...) | |
2819 | { | |
2820 | const struct string_list *values; | |
2821 | struct key_value_info *kv_info; | |
2822 | report_fn error_fn = get_error_routine(); | |
2823 | ||
2824 | if (err) { | |
2825 | va_list params; | |
2826 | va_start(params, err); | |
2827 | error_fn(err, params); | |
2828 | va_end(params); | |
2829 | } | |
2830 | if (git_config_get_value_multi(key, &values)) | |
2831 | BUG("for key '%s' we must have a value to report on", key); | |
2832 | kv_info = values->items[values->nr - 1].util; | |
2833 | git_die_config_linenr(key, kv_info->filename, kv_info->linenr); | |
2834 | } | |
2835 | ||
2836 | /* | |
2837 | * Find all the stuff for git_config_set() below. | |
2838 | */ | |
2839 | ||
2840 | struct config_store_data { | |
2841 | size_t baselen; | |
2842 | char *key; | |
2843 | int do_not_match; | |
2844 | const char *fixed_value; | |
2845 | regex_t *value_pattern; | |
2846 | int multi_replace; | |
2847 | struct { | |
2848 | size_t begin, end; | |
2849 | enum config_event_t type; | |
2850 | int is_keys_section; | |
2851 | } *parsed; | |
2852 | unsigned int parsed_nr, parsed_alloc, *seen, seen_nr, seen_alloc; | |
2853 | unsigned int key_seen:1, section_seen:1, is_keys_section:1; | |
2854 | }; | |
2855 | #define CONFIG_STORE_INIT { 0 } | |
2856 | ||
2857 | static void config_store_data_clear(struct config_store_data *store) | |
2858 | { | |
2859 | free(store->key); | |
2860 | if (store->value_pattern != NULL && | |
2861 | store->value_pattern != CONFIG_REGEX_NONE) { | |
2862 | regfree(store->value_pattern); | |
2863 | free(store->value_pattern); | |
2864 | } | |
2865 | free(store->parsed); | |
2866 | free(store->seen); | |
2867 | memset(store, 0, sizeof(*store)); | |
2868 | } | |
2869 | ||
2870 | static int matches(const char *key, const char *value, | |
2871 | const struct config_store_data *store) | |
2872 | { | |
2873 | if (strcmp(key, store->key)) | |
2874 | return 0; /* not ours */ | |
2875 | if (store->fixed_value) | |
2876 | return !strcmp(store->fixed_value, value); | |
2877 | if (!store->value_pattern) | |
2878 | return 1; /* always matches */ | |
2879 | if (store->value_pattern == CONFIG_REGEX_NONE) | |
2880 | return 0; /* never matches */ | |
2881 | ||
2882 | return store->do_not_match ^ | |
2883 | (value && !regexec(store->value_pattern, value, 0, NULL, 0)); | |
2884 | } | |
2885 | ||
2886 | static int store_aux_event(enum config_event_t type, size_t begin, size_t end, | |
2887 | struct config_source *cs, void *data) | |
2888 | { | |
2889 | struct config_store_data *store = data; | |
2890 | ||
2891 | ALLOC_GROW(store->parsed, store->parsed_nr + 1, store->parsed_alloc); | |
2892 | store->parsed[store->parsed_nr].begin = begin; | |
2893 | store->parsed[store->parsed_nr].end = end; | |
2894 | store->parsed[store->parsed_nr].type = type; | |
2895 | ||
2896 | if (type == CONFIG_EVENT_SECTION) { | |
2897 | int (*cmpfn)(const char *, const char *, size_t); | |
2898 | ||
2899 | if (cs->var.len < 2 || cs->var.buf[cs->var.len - 1] != '.') | |
2900 | return error(_("invalid section name '%s'"), cs->var.buf); | |
2901 | ||
2902 | if (cs->subsection_case_sensitive) | |
2903 | cmpfn = strncasecmp; | |
2904 | else | |
2905 | cmpfn = strncmp; | |
2906 | ||
2907 | /* Is this the section we were looking for? */ | |
2908 | store->is_keys_section = | |
2909 | store->parsed[store->parsed_nr].is_keys_section = | |
2910 | cs->var.len - 1 == store->baselen && | |
2911 | !cmpfn(cs->var.buf, store->key, store->baselen); | |
2912 | if (store->is_keys_section) { | |
2913 | store->section_seen = 1; | |
2914 | ALLOC_GROW(store->seen, store->seen_nr + 1, | |
2915 | store->seen_alloc); | |
2916 | store->seen[store->seen_nr] = store->parsed_nr; | |
2917 | } | |
2918 | } | |
2919 | ||
2920 | store->parsed_nr++; | |
2921 | ||
2922 | return 0; | |
2923 | } | |
2924 | ||
2925 | static int store_aux(const char *key, const char *value, | |
2926 | const struct config_context *ctx UNUSED, void *cb) | |
2927 | { | |
2928 | struct config_store_data *store = cb; | |
2929 | ||
2930 | if (store->key_seen) { | |
2931 | if (matches(key, value, store)) { | |
2932 | if (store->seen_nr == 1 && store->multi_replace == 0) { | |
2933 | warning(_("%s has multiple values"), key); | |
2934 | } | |
2935 | ||
2936 | ALLOC_GROW(store->seen, store->seen_nr + 1, | |
2937 | store->seen_alloc); | |
2938 | ||
2939 | store->seen[store->seen_nr] = store->parsed_nr; | |
2940 | store->seen_nr++; | |
2941 | } | |
2942 | } else if (store->is_keys_section) { | |
2943 | /* | |
2944 | * Do not increment matches yet: this may not be a match, but we | |
2945 | * are in the desired section. | |
2946 | */ | |
2947 | ALLOC_GROW(store->seen, store->seen_nr + 1, store->seen_alloc); | |
2948 | store->seen[store->seen_nr] = store->parsed_nr; | |
2949 | store->section_seen = 1; | |
2950 | ||
2951 | if (matches(key, value, store)) { | |
2952 | store->seen_nr++; | |
2953 | store->key_seen = 1; | |
2954 | } | |
2955 | } | |
2956 | ||
2957 | return 0; | |
2958 | } | |
2959 | ||
2960 | static int write_error(const char *filename) | |
2961 | { | |
2962 | error(_("failed to write new configuration file %s"), filename); | |
2963 | ||
2964 | /* Same error code as "failed to rename". */ | |
2965 | return 4; | |
2966 | } | |
2967 | ||
2968 | static struct strbuf store_create_section(const char *key, | |
2969 | const struct config_store_data *store) | |
2970 | { | |
2971 | const char *dot; | |
2972 | size_t i; | |
2973 | struct strbuf sb = STRBUF_INIT; | |
2974 | ||
2975 | dot = memchr(key, '.', store->baselen); | |
2976 | if (dot) { | |
2977 | strbuf_addf(&sb, "[%.*s \"", (int)(dot - key), key); | |
2978 | for (i = dot - key + 1; i < store->baselen; i++) { | |
2979 | if (key[i] == '"' || key[i] == '\\') | |
2980 | strbuf_addch(&sb, '\\'); | |
2981 | strbuf_addch(&sb, key[i]); | |
2982 | } | |
2983 | strbuf_addstr(&sb, "\"]\n"); | |
2984 | } else { | |
2985 | strbuf_addch(&sb, '['); | |
2986 | strbuf_add(&sb, key, store->baselen); | |
2987 | strbuf_addstr(&sb, "]\n"); | |
2988 | } | |
2989 | ||
2990 | return sb; | |
2991 | } | |
2992 | ||
2993 | static ssize_t write_section(int fd, const char *key, | |
2994 | const struct config_store_data *store) | |
2995 | { | |
2996 | struct strbuf sb = store_create_section(key, store); | |
2997 | ssize_t ret; | |
2998 | ||
2999 | ret = write_in_full(fd, sb.buf, sb.len); | |
3000 | strbuf_release(&sb); | |
3001 | ||
3002 | return ret; | |
3003 | } | |
3004 | ||
3005 | static ssize_t write_pair(int fd, const char *key, const char *value, | |
3006 | const struct config_store_data *store) | |
3007 | { | |
3008 | int i; | |
3009 | ssize_t ret; | |
3010 | const char *quote = ""; | |
3011 | struct strbuf sb = STRBUF_INIT; | |
3012 | ||
3013 | /* | |
3014 | * Check to see if the value needs to be surrounded with a dq pair. | |
3015 | * Note that problematic characters are always backslash-quoted; this | |
3016 | * check is about not losing leading or trailing SP and strings that | |
3017 | * follow beginning-of-comment characters (i.e. ';' and '#') by the | |
3018 | * configuration parser. | |
3019 | */ | |
3020 | if (value[0] == ' ') | |
3021 | quote = "\""; | |
3022 | for (i = 0; value[i]; i++) | |
3023 | if (value[i] == ';' || value[i] == '#') | |
3024 | quote = "\""; | |
3025 | if (i && value[i - 1] == ' ') | |
3026 | quote = "\""; | |
3027 | ||
3028 | strbuf_addf(&sb, "\t%s = %s", key + store->baselen + 1, quote); | |
3029 | ||
3030 | for (i = 0; value[i]; i++) | |
3031 | switch (value[i]) { | |
3032 | case '\n': | |
3033 | strbuf_addstr(&sb, "\\n"); | |
3034 | break; | |
3035 | case '\t': | |
3036 | strbuf_addstr(&sb, "\\t"); | |
3037 | break; | |
3038 | case '"': | |
3039 | case '\\': | |
3040 | strbuf_addch(&sb, '\\'); | |
3041 | /* fallthrough */ | |
3042 | default: | |
3043 | strbuf_addch(&sb, value[i]); | |
3044 | break; | |
3045 | } | |
3046 | strbuf_addf(&sb, "%s\n", quote); | |
3047 | ||
3048 | ret = write_in_full(fd, sb.buf, sb.len); | |
3049 | strbuf_release(&sb); | |
3050 | ||
3051 | return ret; | |
3052 | } | |
3053 | ||
3054 | /* | |
3055 | * If we are about to unset the last key(s) in a section, and if there are | |
3056 | * no comments surrounding (or included in) the section, we will want to | |
3057 | * extend begin/end to remove the entire section. | |
3058 | * | |
3059 | * Note: the parameter `seen_ptr` points to the index into the store.seen | |
3060 | * array. * This index may be incremented if a section has more than one | |
3061 | * entry (which all are to be removed). | |
3062 | */ | |
3063 | static void maybe_remove_section(struct config_store_data *store, | |
3064 | size_t *begin_offset, size_t *end_offset, | |
3065 | int *seen_ptr) | |
3066 | { | |
3067 | size_t begin; | |
3068 | int i, seen, section_seen = 0; | |
3069 | ||
3070 | /* | |
3071 | * First, ensure that this is the first key, and that there are no | |
3072 | * comments before the entry nor before the section header. | |
3073 | */ | |
3074 | seen = *seen_ptr; | |
3075 | for (i = store->seen[seen]; i > 0; i--) { | |
3076 | enum config_event_t type = store->parsed[i - 1].type; | |
3077 | ||
3078 | if (type == CONFIG_EVENT_COMMENT) | |
3079 | /* There is a comment before this entry or section */ | |
3080 | return; | |
3081 | if (type == CONFIG_EVENT_ENTRY) { | |
3082 | if (!section_seen) | |
3083 | /* This is not the section's first entry. */ | |
3084 | return; | |
3085 | /* We encountered no comment before the section. */ | |
3086 | break; | |
3087 | } | |
3088 | if (type == CONFIG_EVENT_SECTION) { | |
3089 | if (!store->parsed[i - 1].is_keys_section) | |
3090 | break; | |
3091 | section_seen = 1; | |
3092 | } | |
3093 | } | |
3094 | begin = store->parsed[i].begin; | |
3095 | ||
3096 | /* | |
3097 | * Next, make sure that we are removing the last key(s) in the section, | |
3098 | * and that there are no comments that are possibly about the current | |
3099 | * section. | |
3100 | */ | |
3101 | for (i = store->seen[seen] + 1; i < store->parsed_nr; i++) { | |
3102 | enum config_event_t type = store->parsed[i].type; | |
3103 | ||
3104 | if (type == CONFIG_EVENT_COMMENT) | |
3105 | return; | |
3106 | if (type == CONFIG_EVENT_SECTION) { | |
3107 | if (store->parsed[i].is_keys_section) | |
3108 | continue; | |
3109 | break; | |
3110 | } | |
3111 | if (type == CONFIG_EVENT_ENTRY) { | |
3112 | if (++seen < store->seen_nr && | |
3113 | i == store->seen[seen]) | |
3114 | /* We want to remove this entry, too */ | |
3115 | continue; | |
3116 | /* There is another entry in this section. */ | |
3117 | return; | |
3118 | } | |
3119 | } | |
3120 | ||
3121 | /* | |
3122 | * We are really removing the last entry/entries from this section, and | |
3123 | * there are no enclosed or surrounding comments. Remove the entire, | |
3124 | * now-empty section. | |
3125 | */ | |
3126 | *seen_ptr = seen; | |
3127 | *begin_offset = begin; | |
3128 | if (i < store->parsed_nr) | |
3129 | *end_offset = store->parsed[i].begin; | |
3130 | else | |
3131 | *end_offset = store->parsed[store->parsed_nr - 1].end; | |
3132 | } | |
3133 | ||
3134 | int git_config_set_in_file_gently(const char *config_filename, | |
3135 | const char *key, const char *value) | |
3136 | { | |
3137 | return git_config_set_multivar_in_file_gently(config_filename, key, value, NULL, 0); | |
3138 | } | |
3139 | ||
3140 | void git_config_set_in_file(const char *config_filename, | |
3141 | const char *key, const char *value) | |
3142 | { | |
3143 | git_config_set_multivar_in_file(config_filename, key, value, NULL, 0); | |
3144 | } | |
3145 | ||
3146 | int git_config_set_gently(const char *key, const char *value) | |
3147 | { | |
3148 | return git_config_set_multivar_gently(key, value, NULL, 0); | |
3149 | } | |
3150 | ||
3151 | int repo_config_set_worktree_gently(struct repository *r, | |
3152 | const char *key, const char *value) | |
3153 | { | |
3154 | /* Only use worktree-specific config if it is already enabled. */ | |
3155 | if (r->repository_format_worktree_config) { | |
3156 | char *file = repo_git_path(r, "config.worktree"); | |
3157 | int ret = git_config_set_multivar_in_file_gently( | |
3158 | file, key, value, NULL, 0); | |
3159 | free(file); | |
3160 | return ret; | |
3161 | } | |
3162 | return repo_config_set_multivar_gently(r, key, value, NULL, 0); | |
3163 | } | |
3164 | ||
3165 | void git_config_set(const char *key, const char *value) | |
3166 | { | |
3167 | git_config_set_multivar(key, value, NULL, 0); | |
3168 | ||
3169 | trace2_cmd_set_config(key, value); | |
3170 | } | |
3171 | ||
3172 | /* | |
3173 | * If value==NULL, unset in (remove from) config, | |
3174 | * if value_pattern!=NULL, disregard key/value pairs where value does not match. | |
3175 | * if value_pattern==CONFIG_REGEX_NONE, do not match any existing values | |
3176 | * (only add a new one) | |
3177 | * if flags contains the CONFIG_FLAGS_MULTI_REPLACE flag, all matching | |
3178 | * key/values are removed before a single new pair is written. If the | |
3179 | * flag is not present, then replace only the first match. | |
3180 | * | |
3181 | * Returns 0 on success. | |
3182 | * | |
3183 | * This function does this: | |
3184 | * | |
3185 | * - it locks the config file by creating ".git/config.lock" | |
3186 | * | |
3187 | * - it then parses the config using store_aux() as validator to find | |
3188 | * the position on the key/value pair to replace. If it is to be unset, | |
3189 | * it must be found exactly once. | |
3190 | * | |
3191 | * - the config file is mmap()ed and the part before the match (if any) is | |
3192 | * written to the lock file, then the changed part and the rest. | |
3193 | * | |
3194 | * - the config file is removed and the lock file rename()d to it. | |
3195 | * | |
3196 | */ | |
3197 | int git_config_set_multivar_in_file_gently(const char *config_filename, | |
3198 | const char *key, const char *value, | |
3199 | const char *value_pattern, | |
3200 | unsigned flags) | |
3201 | { | |
3202 | int fd = -1, in_fd = -1; | |
3203 | int ret; | |
3204 | struct lock_file lock = LOCK_INIT; | |
3205 | char *filename_buf = NULL; | |
3206 | char *contents = NULL; | |
3207 | size_t contents_sz; | |
3208 | struct config_store_data store = CONFIG_STORE_INIT; | |
3209 | ||
3210 | /* parse-key returns negative; flip the sign to feed exit(3) */ | |
3211 | ret = 0 - git_config_parse_key(key, &store.key, &store.baselen); | |
3212 | if (ret) | |
3213 | goto out_free; | |
3214 | ||
3215 | store.multi_replace = (flags & CONFIG_FLAGS_MULTI_REPLACE) != 0; | |
3216 | ||
3217 | if (!config_filename) | |
3218 | config_filename = filename_buf = git_pathdup("config"); | |
3219 | ||
3220 | /* | |
3221 | * The lock serves a purpose in addition to locking: the new | |
3222 | * contents of .git/config will be written into it. | |
3223 | */ | |
3224 | fd = hold_lock_file_for_update(&lock, config_filename, 0); | |
3225 | if (fd < 0) { | |
3226 | error_errno(_("could not lock config file %s"), config_filename); | |
3227 | ret = CONFIG_NO_LOCK; | |
3228 | goto out_free; | |
3229 | } | |
3230 | ||
3231 | /* | |
3232 | * If .git/config does not exist yet, write a minimal version. | |
3233 | */ | |
3234 | in_fd = open(config_filename, O_RDONLY); | |
3235 | if ( in_fd < 0 ) { | |
3236 | if ( ENOENT != errno ) { | |
3237 | error_errno(_("opening %s"), config_filename); | |
3238 | ret = CONFIG_INVALID_FILE; /* same as "invalid config file" */ | |
3239 | goto out_free; | |
3240 | } | |
3241 | /* if nothing to unset, error out */ | |
3242 | if (!value) { | |
3243 | ret = CONFIG_NOTHING_SET; | |
3244 | goto out_free; | |
3245 | } | |
3246 | ||
3247 | free(store.key); | |
3248 | store.key = xstrdup(key); | |
3249 | if (write_section(fd, key, &store) < 0 || | |
3250 | write_pair(fd, key, value, &store) < 0) | |
3251 | goto write_err_out; | |
3252 | } else { | |
3253 | struct stat st; | |
3254 | size_t copy_begin, copy_end; | |
3255 | int i, new_line = 0; | |
3256 | struct config_options opts; | |
3257 | ||
3258 | if (!value_pattern) | |
3259 | store.value_pattern = NULL; | |
3260 | else if (value_pattern == CONFIG_REGEX_NONE) | |
3261 | store.value_pattern = CONFIG_REGEX_NONE; | |
3262 | else if (flags & CONFIG_FLAGS_FIXED_VALUE) | |
3263 | store.fixed_value = value_pattern; | |
3264 | else { | |
3265 | if (value_pattern[0] == '!') { | |
3266 | store.do_not_match = 1; | |
3267 | value_pattern++; | |
3268 | } else | |
3269 | store.do_not_match = 0; | |
3270 | ||
3271 | store.value_pattern = (regex_t*)xmalloc(sizeof(regex_t)); | |
3272 | if (regcomp(store.value_pattern, value_pattern, | |
3273 | REG_EXTENDED)) { | |
3274 | error(_("invalid pattern: %s"), value_pattern); | |
3275 | FREE_AND_NULL(store.value_pattern); | |
3276 | ret = CONFIG_INVALID_PATTERN; | |
3277 | goto out_free; | |
3278 | } | |
3279 | } | |
3280 | ||
3281 | ALLOC_GROW(store.parsed, 1, store.parsed_alloc); | |
3282 | store.parsed[0].end = 0; | |
3283 | ||
3284 | memset(&opts, 0, sizeof(opts)); | |
3285 | opts.event_fn = store_aux_event; | |
3286 | opts.event_fn_data = &store; | |
3287 | ||
3288 | /* | |
3289 | * After this, store.parsed will contain offsets of all the | |
3290 | * parsed elements, and store.seen will contain a list of | |
3291 | * matches, as indices into store.parsed. | |
3292 | * | |
3293 | * As a side effect, we make sure to transform only a valid | |
3294 | * existing config file. | |
3295 | */ | |
3296 | if (git_config_from_file_with_options(store_aux, | |
3297 | config_filename, | |
3298 | &store, CONFIG_SCOPE_UNKNOWN, | |
3299 | &opts)) { | |
3300 | error(_("invalid config file %s"), config_filename); | |
3301 | ret = CONFIG_INVALID_FILE; | |
3302 | goto out_free; | |
3303 | } | |
3304 | ||
3305 | /* if nothing to unset, or too many matches, error out */ | |
3306 | if ((store.seen_nr == 0 && value == NULL) || | |
3307 | (store.seen_nr > 1 && !store.multi_replace)) { | |
3308 | ret = CONFIG_NOTHING_SET; | |
3309 | goto out_free; | |
3310 | } | |
3311 | ||
3312 | if (fstat(in_fd, &st) == -1) { | |
3313 | error_errno(_("fstat on %s failed"), config_filename); | |
3314 | ret = CONFIG_INVALID_FILE; | |
3315 | goto out_free; | |
3316 | } | |
3317 | ||
3318 | contents_sz = xsize_t(st.st_size); | |
3319 | contents = xmmap_gently(NULL, contents_sz, PROT_READ, | |
3320 | MAP_PRIVATE, in_fd, 0); | |
3321 | if (contents == MAP_FAILED) { | |
3322 | if (errno == ENODEV && S_ISDIR(st.st_mode)) | |
3323 | errno = EISDIR; | |
3324 | error_errno(_("unable to mmap '%s'%s"), | |
3325 | config_filename, mmap_os_err()); | |
3326 | ret = CONFIG_INVALID_FILE; | |
3327 | contents = NULL; | |
3328 | goto out_free; | |
3329 | } | |
3330 | close(in_fd); | |
3331 | in_fd = -1; | |
3332 | ||
3333 | if (chmod(get_lock_file_path(&lock), st.st_mode & 07777) < 0) { | |
3334 | error_errno(_("chmod on %s failed"), get_lock_file_path(&lock)); | |
3335 | ret = CONFIG_NO_WRITE; | |
3336 | goto out_free; | |
3337 | } | |
3338 | ||
3339 | if (store.seen_nr == 0) { | |
3340 | if (!store.seen_alloc) { | |
3341 | /* Did not see key nor section */ | |
3342 | ALLOC_GROW(store.seen, 1, store.seen_alloc); | |
3343 | store.seen[0] = store.parsed_nr | |
3344 | - !!store.parsed_nr; | |
3345 | } | |
3346 | store.seen_nr = 1; | |
3347 | } | |
3348 | ||
3349 | for (i = 0, copy_begin = 0; i < store.seen_nr; i++) { | |
3350 | size_t replace_end; | |
3351 | int j = store.seen[i]; | |
3352 | ||
3353 | new_line = 0; | |
3354 | if (!store.key_seen) { | |
3355 | copy_end = store.parsed[j].end; | |
3356 | /* include '\n' when copying section header */ | |
3357 | if (copy_end > 0 && copy_end < contents_sz && | |
3358 | contents[copy_end - 1] != '\n' && | |
3359 | contents[copy_end] == '\n') | |
3360 | copy_end++; | |
3361 | replace_end = copy_end; | |
3362 | } else { | |
3363 | replace_end = store.parsed[j].end; | |
3364 | copy_end = store.parsed[j].begin; | |
3365 | if (!value) | |
3366 | maybe_remove_section(&store, | |
3367 | ©_end, | |
3368 | &replace_end, &i); | |
3369 | /* | |
3370 | * Swallow preceding white-space on the same | |
3371 | * line. | |
3372 | */ | |
3373 | while (copy_end > 0 ) { | |
3374 | char c = contents[copy_end - 1]; | |
3375 | ||
3376 | if (isspace(c) && c != '\n') | |
3377 | copy_end--; | |
3378 | else | |
3379 | break; | |
3380 | } | |
3381 | } | |
3382 | ||
3383 | if (copy_end > 0 && contents[copy_end-1] != '\n') | |
3384 | new_line = 1; | |
3385 | ||
3386 | /* write the first part of the config */ | |
3387 | if (copy_end > copy_begin) { | |
3388 | if (write_in_full(fd, contents + copy_begin, | |
3389 | copy_end - copy_begin) < 0) | |
3390 | goto write_err_out; | |
3391 | if (new_line && | |
3392 | write_str_in_full(fd, "\n") < 0) | |
3393 | goto write_err_out; | |
3394 | } | |
3395 | copy_begin = replace_end; | |
3396 | } | |
3397 | ||
3398 | /* write the pair (value == NULL means unset) */ | |
3399 | if (value) { | |
3400 | if (!store.section_seen) { | |
3401 | if (write_section(fd, key, &store) < 0) | |
3402 | goto write_err_out; | |
3403 | } | |
3404 | if (write_pair(fd, key, value, &store) < 0) | |
3405 | goto write_err_out; | |
3406 | } | |
3407 | ||
3408 | /* write the rest of the config */ | |
3409 | if (copy_begin < contents_sz) | |
3410 | if (write_in_full(fd, contents + copy_begin, | |
3411 | contents_sz - copy_begin) < 0) | |
3412 | goto write_err_out; | |
3413 | ||
3414 | munmap(contents, contents_sz); | |
3415 | contents = NULL; | |
3416 | } | |
3417 | ||
3418 | if (commit_lock_file(&lock) < 0) { | |
3419 | error_errno(_("could not write config file %s"), config_filename); | |
3420 | ret = CONFIG_NO_WRITE; | |
3421 | goto out_free; | |
3422 | } | |
3423 | ||
3424 | ret = 0; | |
3425 | ||
3426 | /* Invalidate the config cache */ | |
3427 | git_config_clear(); | |
3428 | ||
3429 | out_free: | |
3430 | rollback_lock_file(&lock); | |
3431 | free(filename_buf); | |
3432 | if (contents) | |
3433 | munmap(contents, contents_sz); | |
3434 | if (in_fd >= 0) | |
3435 | close(in_fd); | |
3436 | config_store_data_clear(&store); | |
3437 | return ret; | |
3438 | ||
3439 | write_err_out: | |
3440 | ret = write_error(get_lock_file_path(&lock)); | |
3441 | goto out_free; | |
3442 | } | |
3443 | ||
3444 | void git_config_set_multivar_in_file(const char *config_filename, | |
3445 | const char *key, const char *value, | |
3446 | const char *value_pattern, unsigned flags) | |
3447 | { | |
3448 | if (!git_config_set_multivar_in_file_gently(config_filename, key, value, | |
3449 | value_pattern, flags)) | |
3450 | return; | |
3451 | if (value) | |
3452 | die(_("could not set '%s' to '%s'"), key, value); | |
3453 | else | |
3454 | die(_("could not unset '%s'"), key); | |
3455 | } | |
3456 | ||
3457 | int git_config_set_multivar_gently(const char *key, const char *value, | |
3458 | const char *value_pattern, unsigned flags) | |
3459 | { | |
3460 | return repo_config_set_multivar_gently(the_repository, key, value, | |
3461 | value_pattern, flags); | |
3462 | } | |
3463 | ||
3464 | int repo_config_set_multivar_gently(struct repository *r, const char *key, | |
3465 | const char *value, | |
3466 | const char *value_pattern, unsigned flags) | |
3467 | { | |
3468 | char *file = repo_git_path(r, "config"); | |
3469 | int res = git_config_set_multivar_in_file_gently(file, | |
3470 | key, value, | |
3471 | value_pattern, | |
3472 | flags); | |
3473 | free(file); | |
3474 | return res; | |
3475 | } | |
3476 | ||
3477 | void git_config_set_multivar(const char *key, const char *value, | |
3478 | const char *value_pattern, unsigned flags) | |
3479 | { | |
3480 | git_config_set_multivar_in_file(git_path("config"), | |
3481 | key, value, value_pattern, | |
3482 | flags); | |
3483 | } | |
3484 | ||
3485 | static size_t section_name_match (const char *buf, const char *name) | |
3486 | { | |
3487 | size_t i = 0, j = 0; | |
3488 | int dot = 0; | |
3489 | if (buf[i] != '[') | |
3490 | return 0; | |
3491 | for (i = 1; buf[i] && buf[i] != ']'; i++) { | |
3492 | if (!dot && isspace(buf[i])) { | |
3493 | dot = 1; | |
3494 | if (name[j++] != '.') | |
3495 | break; | |
3496 | for (i++; isspace(buf[i]); i++) | |
3497 | ; /* do nothing */ | |
3498 | if (buf[i] != '"') | |
3499 | break; | |
3500 | continue; | |
3501 | } | |
3502 | if (buf[i] == '\\' && dot) | |
3503 | i++; | |
3504 | else if (buf[i] == '"' && dot) { | |
3505 | for (i++; isspace(buf[i]); i++) | |
3506 | ; /* do_nothing */ | |
3507 | break; | |
3508 | } | |
3509 | if (buf[i] != name[j++]) | |
3510 | break; | |
3511 | } | |
3512 | if (buf[i] == ']' && name[j] == 0) { | |
3513 | /* | |
3514 | * We match, now just find the right length offset by | |
3515 | * gobbling up any whitespace after it, as well | |
3516 | */ | |
3517 | i++; | |
3518 | for (; buf[i] && isspace(buf[i]); i++) | |
3519 | ; /* do nothing */ | |
3520 | return i; | |
3521 | } | |
3522 | return 0; | |
3523 | } | |
3524 | ||
3525 | static int section_name_is_ok(const char *name) | |
3526 | { | |
3527 | /* Empty section names are bogus. */ | |
3528 | if (!*name) | |
3529 | return 0; | |
3530 | ||
3531 | /* | |
3532 | * Before a dot, we must be alphanumeric or dash. After the first dot, | |
3533 | * anything goes, so we can stop checking. | |
3534 | */ | |
3535 | for (; *name && *name != '.'; name++) | |
3536 | if (*name != '-' && !isalnum(*name)) | |
3537 | return 0; | |
3538 | return 1; | |
3539 | } | |
3540 | ||
3541 | #define GIT_CONFIG_MAX_LINE_LEN (512 * 1024) | |
3542 | ||
3543 | /* if new_name == NULL, the section is removed instead */ | |
3544 | static int git_config_copy_or_rename_section_in_file(const char *config_filename, | |
3545 | const char *old_name, | |
3546 | const char *new_name, int copy) | |
3547 | { | |
3548 | int ret = 0, remove = 0; | |
3549 | char *filename_buf = NULL; | |
3550 | struct lock_file lock = LOCK_INIT; | |
3551 | int out_fd; | |
3552 | struct strbuf buf = STRBUF_INIT; | |
3553 | FILE *config_file = NULL; | |
3554 | struct stat st; | |
3555 | struct strbuf copystr = STRBUF_INIT; | |
3556 | struct config_store_data store; | |
3557 | uint32_t line_nr = 0; | |
3558 | ||
3559 | memset(&store, 0, sizeof(store)); | |
3560 | ||
3561 | if (new_name && !section_name_is_ok(new_name)) { | |
3562 | ret = error(_("invalid section name: %s"), new_name); | |
3563 | goto out_no_rollback; | |
3564 | } | |
3565 | ||
3566 | if (!config_filename) | |
3567 | config_filename = filename_buf = git_pathdup("config"); | |
3568 | ||
3569 | out_fd = hold_lock_file_for_update(&lock, config_filename, 0); | |
3570 | if (out_fd < 0) { | |
3571 | ret = error(_("could not lock config file %s"), config_filename); | |
3572 | goto out; | |
3573 | } | |
3574 | ||
3575 | if (!(config_file = fopen(config_filename, "rb"))) { | |
3576 | ret = warn_on_fopen_errors(config_filename); | |
3577 | if (ret) | |
3578 | goto out; | |
3579 | /* no config file means nothing to rename, no error */ | |
3580 | goto commit_and_out; | |
3581 | } | |
3582 | ||
3583 | if (fstat(fileno(config_file), &st) == -1) { | |
3584 | ret = error_errno(_("fstat on %s failed"), config_filename); | |
3585 | goto out; | |
3586 | } | |
3587 | ||
3588 | if (chmod(get_lock_file_path(&lock), st.st_mode & 07777) < 0) { | |
3589 | ret = error_errno(_("chmod on %s failed"), | |
3590 | get_lock_file_path(&lock)); | |
3591 | goto out; | |
3592 | } | |
3593 | ||
3594 | while (!strbuf_getwholeline(&buf, config_file, '\n')) { | |
3595 | size_t i, length; | |
3596 | int is_section = 0; | |
3597 | char *output = buf.buf; | |
3598 | ||
3599 | line_nr++; | |
3600 | ||
3601 | if (buf.len >= GIT_CONFIG_MAX_LINE_LEN) { | |
3602 | ret = error(_("refusing to work with overly long line " | |
3603 | "in '%s' on line %"PRIuMAX), | |
3604 | config_filename, (uintmax_t)line_nr); | |
3605 | goto out; | |
3606 | } | |
3607 | ||
3608 | for (i = 0; buf.buf[i] && isspace(buf.buf[i]); i++) | |
3609 | ; /* do nothing */ | |
3610 | if (buf.buf[i] == '[') { | |
3611 | /* it's a section */ | |
3612 | size_t offset; | |
3613 | is_section = 1; | |
3614 | ||
3615 | /* | |
3616 | * When encountering a new section under -c we | |
3617 | * need to flush out any section we're already | |
3618 | * coping and begin anew. There might be | |
3619 | * multiple [branch "$name"] sections. | |
3620 | */ | |
3621 | if (copystr.len > 0) { | |
3622 | if (write_in_full(out_fd, copystr.buf, copystr.len) < 0) { | |
3623 | ret = write_error(get_lock_file_path(&lock)); | |
3624 | goto out; | |
3625 | } | |
3626 | strbuf_reset(©str); | |
3627 | } | |
3628 | ||
3629 | offset = section_name_match(&buf.buf[i], old_name); | |
3630 | if (offset > 0) { | |
3631 | ret++; | |
3632 | if (!new_name) { | |
3633 | remove = 1; | |
3634 | continue; | |
3635 | } | |
3636 | store.baselen = strlen(new_name); | |
3637 | if (!copy) { | |
3638 | if (write_section(out_fd, new_name, &store) < 0) { | |
3639 | ret = write_error(get_lock_file_path(&lock)); | |
3640 | goto out; | |
3641 | } | |
3642 | /* | |
3643 | * We wrote out the new section, with | |
3644 | * a newline, now skip the old | |
3645 | * section's length | |
3646 | */ | |
3647 | output += offset + i; | |
3648 | if (strlen(output) > 0) { | |
3649 | /* | |
3650 | * More content means there's | |
3651 | * a declaration to put on the | |
3652 | * next line; indent with a | |
3653 | * tab | |
3654 | */ | |
3655 | output -= 1; | |
3656 | output[0] = '\t'; | |
3657 | } | |
3658 | } else { | |
3659 | strbuf_release(©str); | |
3660 | copystr = store_create_section(new_name, &store); | |
3661 | } | |
3662 | } | |
3663 | remove = 0; | |
3664 | } | |
3665 | if (remove) | |
3666 | continue; | |
3667 | length = strlen(output); | |
3668 | ||
3669 | if (!is_section && copystr.len > 0) { | |
3670 | strbuf_add(©str, output, length); | |
3671 | } | |
3672 | ||
3673 | if (write_in_full(out_fd, output, length) < 0) { | |
3674 | ret = write_error(get_lock_file_path(&lock)); | |
3675 | goto out; | |
3676 | } | |
3677 | } | |
3678 | ||
3679 | /* | |
3680 | * Copy a trailing section at the end of the config, won't be | |
3681 | * flushed by the usual "flush because we have a new section | |
3682 | * logic in the loop above. | |
3683 | */ | |
3684 | if (copystr.len > 0) { | |
3685 | if (write_in_full(out_fd, copystr.buf, copystr.len) < 0) { | |
3686 | ret = write_error(get_lock_file_path(&lock)); | |
3687 | goto out; | |
3688 | } | |
3689 | strbuf_reset(©str); | |
3690 | } | |
3691 | ||
3692 | fclose(config_file); | |
3693 | config_file = NULL; | |
3694 | commit_and_out: | |
3695 | if (commit_lock_file(&lock) < 0) | |
3696 | ret = error_errno(_("could not write config file %s"), | |
3697 | config_filename); | |
3698 | out: | |
3699 | if (config_file) | |
3700 | fclose(config_file); | |
3701 | rollback_lock_file(&lock); | |
3702 | out_no_rollback: | |
3703 | free(filename_buf); | |
3704 | config_store_data_clear(&store); | |
3705 | strbuf_release(&buf); | |
3706 | strbuf_release(©str); | |
3707 | return ret; | |
3708 | } | |
3709 | ||
3710 | int git_config_rename_section_in_file(const char *config_filename, | |
3711 | const char *old_name, const char *new_name) | |
3712 | { | |
3713 | return git_config_copy_or_rename_section_in_file(config_filename, | |
3714 | old_name, new_name, 0); | |
3715 | } | |
3716 | ||
3717 | int git_config_rename_section(const char *old_name, const char *new_name) | |
3718 | { | |
3719 | return git_config_rename_section_in_file(NULL, old_name, new_name); | |
3720 | } | |
3721 | ||
3722 | int git_config_copy_section_in_file(const char *config_filename, | |
3723 | const char *old_name, const char *new_name) | |
3724 | { | |
3725 | return git_config_copy_or_rename_section_in_file(config_filename, | |
3726 | old_name, new_name, 1); | |
3727 | } | |
3728 | ||
3729 | int git_config_copy_section(const char *old_name, const char *new_name) | |
3730 | { | |
3731 | return git_config_copy_section_in_file(NULL, old_name, new_name); | |
3732 | } | |
3733 | ||
3734 | /* | |
3735 | * Call this to report error for your variable that should not | |
3736 | * get a boolean value (i.e. "[my] var" means "true"). | |
3737 | */ | |
3738 | #undef config_error_nonbool | |
3739 | int config_error_nonbool(const char *var) | |
3740 | { | |
3741 | return error(_("missing value for '%s'"), var); | |
3742 | } | |
3743 | ||
3744 | int parse_config_key(const char *var, | |
3745 | const char *section, | |
3746 | const char **subsection, size_t *subsection_len, | |
3747 | const char **key) | |
3748 | { | |
3749 | const char *dot; | |
3750 | ||
3751 | /* Does it start with "section." ? */ | |
3752 | if (!skip_prefix(var, section, &var) || *var != '.') | |
3753 | return -1; | |
3754 | ||
3755 | /* | |
3756 | * Find the key; we don't know yet if we have a subsection, but we must | |
3757 | * parse backwards from the end, since the subsection may have dots in | |
3758 | * it, too. | |
3759 | */ | |
3760 | dot = strrchr(var, '.'); | |
3761 | *key = dot + 1; | |
3762 | ||
3763 | /* Did we have a subsection at all? */ | |
3764 | if (dot == var) { | |
3765 | if (subsection) { | |
3766 | *subsection = NULL; | |
3767 | *subsection_len = 0; | |
3768 | } | |
3769 | } | |
3770 | else { | |
3771 | if (!subsection) | |
3772 | return -1; | |
3773 | *subsection = var + 1; | |
3774 | *subsection_len = dot - *subsection; | |
3775 | } | |
3776 | ||
3777 | return 0; | |
3778 | } | |
3779 | ||
3780 | const char *config_origin_type_name(enum config_origin_type type) | |
3781 | { | |
3782 | switch (type) { | |
3783 | case CONFIG_ORIGIN_BLOB: | |
3784 | return "blob"; | |
3785 | case CONFIG_ORIGIN_FILE: | |
3786 | return "file"; | |
3787 | case CONFIG_ORIGIN_STDIN: | |
3788 | return "standard input"; | |
3789 | case CONFIG_ORIGIN_SUBMODULE_BLOB: | |
3790 | return "submodule-blob"; | |
3791 | case CONFIG_ORIGIN_CMDLINE: | |
3792 | return "command line"; | |
3793 | default: | |
3794 | BUG("unknown config origin type"); | |
3795 | } | |
3796 | } | |
3797 | ||
3798 | const char *config_scope_name(enum config_scope scope) | |
3799 | { | |
3800 | switch (scope) { | |
3801 | case CONFIG_SCOPE_SYSTEM: | |
3802 | return "system"; | |
3803 | case CONFIG_SCOPE_GLOBAL: | |
3804 | return "global"; | |
3805 | case CONFIG_SCOPE_LOCAL: | |
3806 | return "local"; | |
3807 | case CONFIG_SCOPE_WORKTREE: | |
3808 | return "worktree"; | |
3809 | case CONFIG_SCOPE_COMMAND: | |
3810 | return "command"; | |
3811 | case CONFIG_SCOPE_SUBMODULE: | |
3812 | return "submodule"; | |
3813 | default: | |
3814 | return "unknown"; | |
3815 | } | |
3816 | } | |
3817 | ||
3818 | int lookup_config(const char **mapping, int nr_mapping, const char *var) | |
3819 | { | |
3820 | int i; | |
3821 | ||
3822 | for (i = 0; i < nr_mapping; i++) { | |
3823 | const char *name = mapping[i]; | |
3824 | ||
3825 | if (name && !strcasecmp(var, name)) | |
3826 | return i; | |
3827 | } | |
3828 | return -1; | |
3829 | } |