| /* | |
| * GIT - The information manager from hell | |
| * | |
| * Copyright (C) Linus Torvalds, 2005 | |
| * Copyright (C) Johannes Schindelin, 2005 | |
| * | |
| */ | |
| #include "cache.h" | |
| #include "config.h" | |
| #include "repository.h" | |
| #include "lockfile.h" | |
| #include "exec_cmd.h" | |
| #include "strbuf.h" | |
| #include "quote.h" | |
| #include "hashmap.h" | |
| #include "string-list.h" | |
| #include "utf8.h" | |
| #include "dir.h" | |
| struct config_source { | |
| struct config_source *prev; | |
| union { | |
| FILE *file; | |
| struct config_buf { | |
| const char *buf; | |
| size_t len; | |
| size_t pos; | |
| } buf; | |
| } u; | |
| enum config_origin_type origin_type; | |
| const char *name; | |
| const char *path; | |
| int die_on_error; | |
| int linenr; | |
| int eof; | |
| struct strbuf value; | |
| struct strbuf var; | |
| int (*do_fgetc)(struct config_source *c); | |
| int (*do_ungetc)(int c, struct config_source *conf); | |
| long (*do_ftell)(struct config_source *c); | |
| }; | |
| /* | |
| * These variables record the "current" config source, which | |
| * can be accessed by parsing callbacks. | |
| * | |
| * The "cf" variable will be non-NULL only when we are actually parsing a real | |
| * config source (file, blob, cmdline, etc). | |
| * | |
| * The "current_config_kvi" variable will be non-NULL only when we are feeding | |
| * cached config from a configset into a callback. | |
| * | |
| * They should generally never be non-NULL at the same time. If they are both | |
| * NULL, then we aren't parsing anything (and depending on the function looking | |
| * at the variables, it's either a bug for it to be called in the first place, | |
| * or it's a function which can be reused for non-config purposes, and should | |
| * fall back to some sane behavior). | |
| */ | |
| static struct config_source *cf; | |
| static struct key_value_info *current_config_kvi; | |
| /* | |
| * Similar to the variables above, this gives access to the "scope" of the | |
| * current value (repo, global, etc). For cached values, it can be found via | |
| * the current_config_kvi as above. During parsing, the current value can be | |
| * found in this variable. It's not part of "cf" because it transcends a single | |
| * file (i.e., a file included from .git/config is still in "repo" scope). | |
| */ | |
| static enum config_scope current_parsing_scope; | |
| static int core_compression_seen; | |
| static int pack_compression_seen; | |
| static int zlib_compression_seen; | |
| static int config_file_fgetc(struct config_source *conf) | |
| { | |
| return getc_unlocked(conf->u.file); | |
| } | |
| static int config_file_ungetc(int c, struct config_source *conf) | |
| { | |
| return ungetc(c, conf->u.file); | |
| } | |
| static long config_file_ftell(struct config_source *conf) | |
| { | |
| return ftell(conf->u.file); | |
| } | |
| static int config_buf_fgetc(struct config_source *conf) | |
| { | |
| if (conf->u.buf.pos < conf->u.buf.len) | |
| return conf->u.buf.buf[conf->u.buf.pos++]; | |
| return EOF; | |
| } | |
| static int config_buf_ungetc(int c, struct config_source *conf) | |
| { | |
| if (conf->u.buf.pos > 0) { | |
| conf->u.buf.pos--; | |
| if (conf->u.buf.buf[conf->u.buf.pos] != c) | |
| die("BUG: config_buf can only ungetc the same character"); | |
| return c; | |
| } | |
| return EOF; | |
| } | |
| static long config_buf_ftell(struct config_source *conf) | |
| { | |
| return conf->u.buf.pos; | |
| } | |
| #define MAX_INCLUDE_DEPTH 10 | |
| static const char include_depth_advice[] = | |
| "exceeded maximum include depth (%d) while including\n" | |
| " %s\n" | |
| "from\n" | |
| " %s\n" | |
| "Do you have circular includes?"; | |
| static int handle_path_include(const char *path, struct config_include_data *inc) | |
| { | |
| int ret = 0; | |
| struct strbuf buf = STRBUF_INIT; | |
| char *expanded; | |
| if (!path) | |
| return config_error_nonbool("include.path"); | |
| expanded = expand_user_path(path, 0); | |
| if (!expanded) | |
| return error("could not expand include path '%s'", path); | |
| path = expanded; | |
| /* | |
| * Use an absolute path as-is, but interpret relative paths | |
| * based on the including config file. | |
| */ | |
| if (!is_absolute_path(path)) { | |
| char *slash; | |
| if (!cf || !cf->path) | |
| return error("relative config includes must come from files"); | |
| slash = find_last_dir_sep(cf->path); | |
| if (slash) | |
| strbuf_add(&buf, cf->path, slash - cf->path + 1); | |
| strbuf_addstr(&buf, path); | |
| path = buf.buf; | |
| } | |
| if (!access_or_die(path, R_OK, 0)) { | |
| if (++inc->depth > MAX_INCLUDE_DEPTH) | |
| die(include_depth_advice, MAX_INCLUDE_DEPTH, path, | |
| !cf ? "<unknown>" : | |
| cf->name ? cf->name : | |
| "the command line"); | |
| ret = git_config_from_file(git_config_include, path, inc); | |
| inc->depth--; | |
| } | |
| strbuf_release(&buf); | |
| free(expanded); | |
| return ret; | |
| } | |
| static int prepare_include_condition_pattern(struct strbuf *pat) | |
| { | |
| struct strbuf path = STRBUF_INIT; | |
| char *expanded; | |
| int prefix = 0; | |
| expanded = expand_user_path(pat->buf, 1); | |
| if (expanded) { | |
| strbuf_reset(pat); | |
| strbuf_addstr(pat, expanded); | |
| free(expanded); | |
| } | |
| if (pat->buf[0] == '.' && is_dir_sep(pat->buf[1])) { | |
| const char *slash; | |
| if (!cf || !cf->path) | |
| return error(_("relative config include " | |
| "conditionals must come from files")); | |
| strbuf_realpath(&path, cf->path, 1); | |
| slash = find_last_dir_sep(path.buf); | |
| if (!slash) | |
| die("BUG: how is this possible?"); | |
| strbuf_splice(pat, 0, 1, path.buf, slash - path.buf); | |
| prefix = slash - path.buf + 1 /* slash */; | |
| } else if (!is_absolute_path(pat->buf)) | |
| strbuf_insert(pat, 0, "**/", 3); | |
| if (pat->len && is_dir_sep(pat->buf[pat->len - 1])) | |
| strbuf_addstr(pat, "**"); | |
| strbuf_release(&path); | |
| return prefix; | |
| } | |
| static int include_by_gitdir(const struct config_options *opts, | |
| const char *cond, size_t cond_len, int icase) | |
| { | |
| struct strbuf text = STRBUF_INIT; | |
| struct strbuf pattern = STRBUF_INIT; | |
| int ret = 0, prefix; | |
| const char *git_dir; | |
| int already_tried_absolute = 0; | |
| if (opts->git_dir) | |
| git_dir = opts->git_dir; | |
| else | |
| goto done; | |
| strbuf_realpath(&text, git_dir, 1); | |
| strbuf_add(&pattern, cond, cond_len); | |
| prefix = prepare_include_condition_pattern(&pattern); | |
| again: | |
| if (prefix < 0) | |
| goto done; | |
| if (prefix > 0) { | |
| /* | |
| * perform literal matching on the prefix part so that | |
| * any wildcard character in it can't create side effects. | |
| */ | |
| if (text.len < prefix) | |
| goto done; | |
| if (!icase && strncmp(pattern.buf, text.buf, prefix)) | |
| goto done; | |
| if (icase && strncasecmp(pattern.buf, text.buf, prefix)) | |
| goto done; | |
| } | |
| ret = !wildmatch(pattern.buf + prefix, text.buf + prefix, | |
| icase ? WM_CASEFOLD : 0); | |
| if (!ret && !already_tried_absolute) { | |
| /* | |
| * We've tried e.g. matching gitdir:~/work, but if | |
| * ~/work is a symlink to /mnt/storage/work | |
| * strbuf_realpath() will expand it, so the rule won't | |
| * match. Let's match against a | |
| * strbuf_add_absolute_path() version of the path, | |
| * which'll do the right thing | |
| */ | |
| strbuf_reset(&text); | |
| strbuf_add_absolute_path(&text, git_dir); | |
| already_tried_absolute = 1; | |
| goto again; | |
| } | |
| done: | |
| strbuf_release(&pattern); | |
| strbuf_release(&text); | |
| return ret; | |
| } | |
| static int include_condition_is_true(const struct config_options *opts, | |
| const char *cond, size_t cond_len) | |
| { | |
| if (skip_prefix_mem(cond, cond_len, "gitdir:", &cond, &cond_len)) | |
| return include_by_gitdir(opts, cond, cond_len, 0); | |
| else if (skip_prefix_mem(cond, cond_len, "gitdir/i:", &cond, &cond_len)) | |
| return include_by_gitdir(opts, cond, cond_len, 1); | |
| /* unknown conditionals are always false */ | |
| return 0; | |
| } | |
| int git_config_include(const char *var, const char *value, void *data) | |
| { | |
| struct config_include_data *inc = data; | |
| const char *cond, *key; | |
| int cond_len; | |
| int ret; | |
| /* | |
| * Pass along all values, including "include" directives; this makes it | |
| * possible to query information on the includes themselves. | |
| */ | |
| ret = inc->fn(var, value, inc->data); | |
| if (ret < 0) | |
| return ret; | |
| if (!strcmp(var, "include.path")) | |
| ret = handle_path_include(value, inc); | |
| if (!parse_config_key(var, "includeif", &cond, &cond_len, &key) && | |
| (cond && include_condition_is_true(inc->opts, cond, cond_len)) && | |
| !strcmp(key, "path")) | |
| ret = handle_path_include(value, inc); | |
| return ret; | |
| } | |
| void git_config_push_parameter(const char *text) | |
| { | |
| struct strbuf env = STRBUF_INIT; | |
| const char *old = getenv(CONFIG_DATA_ENVIRONMENT); | |
| if (old && *old) { | |
| strbuf_addstr(&env, old); | |
| strbuf_addch(&env, ' '); | |
| } | |
| sq_quote_buf(&env, text); | |
| setenv(CONFIG_DATA_ENVIRONMENT, env.buf, 1); | |
| strbuf_release(&env); | |
| } | |
| static inline int iskeychar(int c) | |
| { | |
| return isalnum(c) || c == '-'; | |
| } | |
| /* | |
| * Auxiliary function to sanity-check and split the key into the section | |
| * identifier and variable name. | |
| * | |
| * Returns 0 on success, -1 when there is an invalid character in the key and | |
| * -2 if there is no section name in the key. | |
| * | |
| * store_key - pointer to char* which will hold a copy of the key with | |
| * lowercase section and variable name | |
| * baselen - pointer to int which will hold the length of the | |
| * section + subsection part, can be NULL | |
| */ | |
| static int git_config_parse_key_1(const char *key, char **store_key, int *baselen_, int quiet) | |
| { | |
| int i, dot, baselen; | |
| const char *last_dot = strrchr(key, '.'); | |
| /* | |
| * Since "key" actually contains the section name and the real | |
| * key name separated by a dot, we have to know where the dot is. | |
| */ | |
| if (last_dot == NULL || last_dot == key) { | |
| if (!quiet) | |
| error("key does not contain a section: %s", key); | |
| return -CONFIG_NO_SECTION_OR_NAME; | |
| } | |
| if (!last_dot[1]) { | |
| if (!quiet) | |
| error("key does not contain variable name: %s", key); | |
| return -CONFIG_NO_SECTION_OR_NAME; | |
| } | |
| baselen = last_dot - key; | |
| if (baselen_) | |
| *baselen_ = baselen; | |
| /* | |
| * Validate the key and while at it, lower case it for matching. | |
| */ | |
| if (store_key) | |
| *store_key = xmallocz(strlen(key)); | |
| dot = 0; | |
| for (i = 0; key[i]; i++) { | |
| unsigned char c = key[i]; | |
| if (c == '.') | |
| dot = 1; | |
| /* Leave the extended basename untouched.. */ | |
| if (!dot || i > baselen) { | |
| if (!iskeychar(c) || | |
| (i == baselen + 1 && !isalpha(c))) { | |
| if (!quiet) | |
| error("invalid key: %s", key); | |
| goto out_free_ret_1; | |
| } | |
| c = tolower(c); | |
| } else if (c == '\n') { | |
| if (!quiet) | |
| error("invalid key (newline): %s", key); | |
| goto out_free_ret_1; | |
| } | |
| if (store_key) | |
| (*store_key)[i] = c; | |
| } | |
| return 0; | |
| out_free_ret_1: | |
| if (store_key) { | |
| FREE_AND_NULL(*store_key); | |
| } | |
| return -CONFIG_INVALID_KEY; | |
| } | |
| int git_config_parse_key(const char *key, char **store_key, int *baselen) | |
| { | |
| return git_config_parse_key_1(key, store_key, baselen, 0); | |
| } | |
| int git_config_key_is_valid(const char *key) | |
| { | |
| return !git_config_parse_key_1(key, NULL, NULL, 1); | |
| } | |
| int git_config_parse_parameter(const char *text, | |
| config_fn_t fn, void *data) | |
| { | |
| const char *value; | |
| char *canonical_name; | |
| struct strbuf **pair; | |
| int ret; | |
| pair = strbuf_split_str(text, '=', 2); | |
| if (!pair[0]) | |
| return error("bogus config parameter: %s", text); | |
| if (pair[0]->len && pair[0]->buf[pair[0]->len - 1] == '=') { | |
| strbuf_setlen(pair[0], pair[0]->len - 1); | |
| value = pair[1] ? pair[1]->buf : ""; | |
| } else { | |
| value = NULL; | |
| } | |
| strbuf_trim(pair[0]); | |
| if (!pair[0]->len) { | |
| strbuf_list_free(pair); | |
| return error("bogus config parameter: %s", text); | |
| } | |
| if (git_config_parse_key(pair[0]->buf, &canonical_name, NULL)) { | |
| ret = -1; | |
| } else { | |
| ret = (fn(canonical_name, value, data) < 0) ? -1 : 0; | |
| free(canonical_name); | |
| } | |
| strbuf_list_free(pair); | |
| return ret; | |
| } | |
| int git_config_from_parameters(config_fn_t fn, void *data) | |
| { | |
| const char *env = getenv(CONFIG_DATA_ENVIRONMENT); | |
| int ret = 0; | |
| char *envw; | |
| const char **argv = NULL; | |
| int nr = 0, alloc = 0; | |
| int i; | |
| struct config_source source; | |
| if (!env) | |
| return 0; | |
| memset(&source, 0, sizeof(source)); | |
| source.prev = cf; | |
| source.origin_type = CONFIG_ORIGIN_CMDLINE; | |
| cf = &source; | |
| /* sq_dequote will write over it */ | |
| envw = xstrdup(env); | |
| if (sq_dequote_to_argv(envw, &argv, &nr, &alloc) < 0) { | |
| ret = error("bogus format in " CONFIG_DATA_ENVIRONMENT); | |
| goto out; | |
| } | |
| for (i = 0; i < nr; i++) { | |
| if (git_config_parse_parameter(argv[i], fn, data) < 0) { | |
| ret = -1; | |
| goto out; | |
| } | |
| } | |
| out: | |
| free(argv); | |
| free(envw); | |
| cf = source.prev; | |
| return ret; | |
| } | |
| static int get_next_char(void) | |
| { | |
| int c = cf->do_fgetc(cf); | |
| if (c == '\r') { | |
| /* DOS like systems */ | |
| c = cf->do_fgetc(cf); | |
| if (c != '\n') { | |
| if (c != EOF) | |
| cf->do_ungetc(c, cf); | |
| c = '\r'; | |
| } | |
| } | |
| if (c == '\n') | |
| cf->linenr++; | |
| if (c == EOF) { | |
| cf->eof = 1; | |
| cf->linenr++; | |
| c = '\n'; | |
| } | |
| return c; | |
| } | |
| static char *parse_value(void) | |
| { | |
| int quote = 0, comment = 0, space = 0; | |
| strbuf_reset(&cf->value); | |
| for (;;) { | |
| int c = get_next_char(); | |
| if (c == '\n') { | |
| if (quote) { | |
| cf->linenr--; | |
| return NULL; | |
| } | |
| return cf->value.buf; | |
| } | |
| if (comment) | |
| continue; | |
| if (isspace(c) && !quote) { | |
| if (cf->value.len) | |
| space++; | |
| continue; | |
| } | |
| if (!quote) { | |
| if (c == ';' || c == '#') { | |
| comment = 1; | |
| continue; | |
| } | |
| } | |
| for (; space; space--) | |
| strbuf_addch(&cf->value, ' '); | |
| if (c == '\\') { | |
| c = get_next_char(); | |
| switch (c) { | |
| case '\n': | |
| continue; | |
| case 't': | |
| c = '\t'; | |
| break; | |
| case 'b': | |
| c = '\b'; | |
| break; | |
| case 'n': | |
| c = '\n'; | |
| break; | |
| /* Some characters escape as themselves */ | |
| case '\\': case '"': | |
| break; | |
| /* Reject unknown escape sequences */ | |
| default: | |
| return NULL; | |
| } | |
| strbuf_addch(&cf->value, c); | |
| continue; | |
| } | |
| if (c == '"') { | |
| quote = 1-quote; | |
| continue; | |
| } | |
| strbuf_addch(&cf->value, c); | |
| } | |
| } | |
| static int get_value(config_fn_t fn, void *data, struct strbuf *name) | |
| { | |
| int c; | |
| char *value; | |
| int ret; | |
| /* Get the full name */ | |
| for (;;) { | |
| c = get_next_char(); | |
| if (cf->eof) | |
| break; | |
| if (!iskeychar(c)) | |
| break; | |
| strbuf_addch(name, tolower(c)); | |
| } | |
| while (c == ' ' || c == '\t') | |
| c = get_next_char(); | |
| value = NULL; | |
| if (c != '\n') { | |
| if (c != '=') | |
| return -1; | |
| value = parse_value(); | |
| if (!value) | |
| return -1; | |
| } | |
| /* | |
| * We already consumed the \n, but we need linenr to point to | |
| * the line we just parsed during the call to fn to get | |
| * accurate line number in error messages. | |
| */ | |
| cf->linenr--; | |
| ret = fn(name->buf, value, data); | |
| if (ret >= 0) | |
| cf->linenr++; | |
| return ret; | |
| } | |
| static int get_extended_base_var(struct strbuf *name, int c) | |
| { | |
| do { | |
| if (c == '\n') | |
| goto error_incomplete_line; | |
| c = get_next_char(); | |
| } while (isspace(c)); | |
| /* We require the format to be '[base "extension"]' */ | |
| if (c != '"') | |
| return -1; | |
| strbuf_addch(name, '.'); | |
| for (;;) { | |
| int c = get_next_char(); | |
| if (c == '\n') | |
| goto error_incomplete_line; | |
| if (c == '"') | |
| break; | |
| if (c == '\\') { | |
| c = get_next_char(); | |
| if (c == '\n') | |
| goto error_incomplete_line; | |
| } | |
| strbuf_addch(name, c); | |
| } | |
| /* Final ']' */ | |
| if (get_next_char() != ']') | |
| return -1; | |
| return 0; | |
| error_incomplete_line: | |
| cf->linenr--; | |
| return -1; | |
| } | |
| static int get_base_var(struct strbuf *name) | |
| { | |
| for (;;) { | |
| int c = get_next_char(); | |
| if (cf->eof) | |
| return -1; | |
| if (c == ']') | |
| return 0; | |
| if (isspace(c)) | |
| return get_extended_base_var(name, c); | |
| if (!iskeychar(c) && c != '.') | |
| return -1; | |
| strbuf_addch(name, tolower(c)); | |
| } | |
| } | |
| static int git_parse_source(config_fn_t fn, void *data) | |
| { | |
| int comment = 0; | |
| int baselen = 0; | |
| struct strbuf *var = &cf->var; | |
| int error_return = 0; | |
| char *error_msg = NULL; | |
| /* U+FEFF Byte Order Mark in UTF8 */ | |
| const char *bomptr = utf8_bom; | |
| for (;;) { | |
| int c = get_next_char(); | |
| if (bomptr && *bomptr) { | |
| /* We are at the file beginning; skip UTF8-encoded BOM | |
| * if present. Sane editors won't put this in on their | |
| * own, but e.g. Windows Notepad will do it happily. */ | |
| if (c == (*bomptr & 0377)) { | |
| bomptr++; | |
| continue; | |
| } else { | |
| /* Do not tolerate partial BOM. */ | |
| if (bomptr != utf8_bom) | |
| break; | |
| /* No BOM at file beginning. Cool. */ | |
| bomptr = NULL; | |
| } | |
| } | |
| if (c == '\n') { | |
| if (cf->eof) | |
| return 0; | |
| comment = 0; | |
| continue; | |
| } | |
| if (comment || isspace(c)) | |
| continue; | |
| if (c == '#' || c == ';') { | |
| comment = 1; | |
| continue; | |
| } | |
| if (c == '[') { | |
| /* Reset prior to determining a new stem */ | |
| strbuf_reset(var); | |
| if (get_base_var(var) < 0 || var->len < 1) | |
| break; | |
| strbuf_addch(var, '.'); | |
| baselen = var->len; | |
| continue; | |
| } | |
| if (!isalpha(c)) | |
| break; | |
| /* | |
| * Truncate the var name back to the section header | |
| * stem prior to grabbing the suffix part of the name | |
| * and the value. | |
| */ | |
| strbuf_setlen(var, baselen); | |
| strbuf_addch(var, tolower(c)); | |
| if (get_value(fn, data, var) < 0) | |
| break; | |
| } | |
| switch (cf->origin_type) { | |
| case CONFIG_ORIGIN_BLOB: | |
| error_msg = xstrfmt(_("bad config line %d in blob %s"), | |
| cf->linenr, cf->name); | |
| break; | |
| case CONFIG_ORIGIN_FILE: | |
| error_msg = xstrfmt(_("bad config line %d in file %s"), | |
| cf->linenr, cf->name); | |
| break; | |
| case CONFIG_ORIGIN_STDIN: | |
| error_msg = xstrfmt(_("bad config line %d in standard input"), | |
| cf->linenr); | |
| break; | |
| case CONFIG_ORIGIN_SUBMODULE_BLOB: | |
| error_msg = xstrfmt(_("bad config line %d in submodule-blob %s"), | |
| cf->linenr, cf->name); | |
| break; | |
| case CONFIG_ORIGIN_CMDLINE: | |
| error_msg = xstrfmt(_("bad config line %d in command line %s"), | |
| cf->linenr, cf->name); | |
| break; | |
| default: | |
| error_msg = xstrfmt(_("bad config line %d in %s"), | |
| cf->linenr, cf->name); | |
| } | |
| if (cf->die_on_error) | |
| die("%s", error_msg); | |
| else | |
| error_return = error("%s", error_msg); | |
| free(error_msg); | |
| return error_return; | |
| } | |
| static int parse_unit_factor(const char *end, uintmax_t *val) | |
| { | |
| if (!*end) | |
| return 1; | |
| else if (!strcasecmp(end, "k")) { | |
| *val *= 1024; | |
| return 1; | |
| } | |
| else if (!strcasecmp(end, "m")) { | |
| *val *= 1024 * 1024; | |
| return 1; | |
| } | |
| else if (!strcasecmp(end, "g")) { | |
| *val *= 1024 * 1024 * 1024; | |
| return 1; | |
| } | |
| return 0; | |
| } | |
| static int git_parse_signed(const char *value, intmax_t *ret, intmax_t max) | |
| { | |
| if (value && *value) { | |
| char *end; | |
| intmax_t val; | |
| uintmax_t uval; | |
| uintmax_t factor = 1; | |
| errno = 0; | |
| val = strtoimax(value, &end, 0); | |
| if (errno == ERANGE) | |
| return 0; | |
| if (!parse_unit_factor(end, &factor)) { | |
| errno = EINVAL; | |
| return 0; | |
| } | |
| uval = labs(val); | |
| uval *= factor; | |
| if (uval > max || labs(val) > uval) { | |
| errno = ERANGE; | |
| return 0; | |
| } | |
| val *= factor; | |
| *ret = val; | |
| return 1; | |
| } | |
| errno = EINVAL; | |
| return 0; | |
| } | |
| static int git_parse_unsigned(const char *value, uintmax_t *ret, uintmax_t max) | |
| { | |
| if (value && *value) { | |
| char *end; | |
| uintmax_t val; | |
| uintmax_t oldval; | |
| errno = 0; | |
| val = strtoumax(value, &end, 0); | |
| if (errno == ERANGE) | |
| return 0; | |
| oldval = val; | |
| if (!parse_unit_factor(end, &val)) { | |
| errno = EINVAL; | |
| return 0; | |
| } | |
| if (val > max || oldval > val) { | |
| errno = ERANGE; | |
| return 0; | |
| } | |
| *ret = val; | |
| return 1; | |
| } | |
| errno = EINVAL; | |
| return 0; | |
| } | |
| static int git_parse_int(const char *value, int *ret) | |
| { | |
| intmax_t tmp; | |
| if (!git_parse_signed(value, &tmp, maximum_signed_value_of_type(int))) | |
| return 0; | |
| *ret = tmp; | |
| return 1; | |
| } | |
| static int git_parse_int64(const char *value, int64_t *ret) | |
| { | |
| intmax_t tmp; | |
| if (!git_parse_signed(value, &tmp, maximum_signed_value_of_type(int64_t))) | |
| return 0; | |
| *ret = tmp; | |
| return 1; | |
| } | |
| int git_parse_ulong(const char *value, unsigned long *ret) | |
| { | |
| uintmax_t tmp; | |
| if (!git_parse_unsigned(value, &tmp, maximum_unsigned_value_of_type(long))) | |
| return 0; | |
| *ret = tmp; | |
| return 1; | |
| } | |
| static int git_parse_ssize_t(const char *value, ssize_t *ret) | |
| { | |
| intmax_t tmp; | |
| if (!git_parse_signed(value, &tmp, maximum_signed_value_of_type(ssize_t))) | |
| return 0; | |
| *ret = tmp; | |
| return 1; | |
| } | |
| NORETURN | |
| static void die_bad_number(const char *name, const char *value) | |
| { | |
| const char * error_type = (errno == ERANGE)? _("out of range"):_("invalid unit"); | |
| if (!value) | |
| value = ""; | |
| if (!(cf && cf->name)) | |
| die(_("bad numeric config value '%s' for '%s': %s"), | |
| value, name, error_type); | |
| switch (cf->origin_type) { | |
| case CONFIG_ORIGIN_BLOB: | |
| die(_("bad numeric config value '%s' for '%s' in blob %s: %s"), | |
| value, name, cf->name, error_type); | |
| case CONFIG_ORIGIN_FILE: | |
| die(_("bad numeric config value '%s' for '%s' in file %s: %s"), | |
| value, name, cf->name, error_type); | |
| case CONFIG_ORIGIN_STDIN: | |
| die(_("bad numeric config value '%s' for '%s' in standard input: %s"), | |
| value, name, error_type); | |
| case CONFIG_ORIGIN_SUBMODULE_BLOB: | |
| die(_("bad numeric config value '%s' for '%s' in submodule-blob %s: %s"), | |
| value, name, cf->name, error_type); | |
| case CONFIG_ORIGIN_CMDLINE: | |
| die(_("bad numeric config value '%s' for '%s' in command line %s: %s"), | |
| value, name, cf->name, error_type); | |
| default: | |
| die(_("bad numeric config value '%s' for '%s' in %s: %s"), | |
| value, name, cf->name, error_type); | |
| } | |
| } | |
| int git_config_int(const char *name, const char *value) | |
| { | |
| int ret; | |
| if (!git_parse_int(value, &ret)) | |
| die_bad_number(name, value); | |
| return ret; | |
| } | |
| int64_t git_config_int64(const char *name, const char *value) | |
| { | |
| int64_t ret; | |
| if (!git_parse_int64(value, &ret)) | |
| die_bad_number(name, value); | |
| return ret; | |
| } | |
| unsigned long git_config_ulong(const char *name, const char *value) | |
| { | |
| unsigned long ret; | |
| if (!git_parse_ulong(value, &ret)) | |
| die_bad_number(name, value); | |
| return ret; | |
| } | |
| ssize_t git_config_ssize_t(const char *name, const char *value) | |
| { | |
| ssize_t ret; | |
| if (!git_parse_ssize_t(value, &ret)) | |
| die_bad_number(name, value); | |
| return ret; | |
| } | |
| int git_parse_maybe_bool(const char *value) | |
| { | |
| if (!value) | |
| return 1; | |
| if (!*value) | |
| return 0; | |
| if (!strcasecmp(value, "true") | |
| || !strcasecmp(value, "yes") | |
| || !strcasecmp(value, "on")) | |
| return 1; | |
| if (!strcasecmp(value, "false") | |
| || !strcasecmp(value, "no") | |
| || !strcasecmp(value, "off")) | |
| return 0; | |
| return -1; | |
| } | |
| int git_config_maybe_bool(const char *name, const char *value) | |
| { | |
| int v = git_parse_maybe_bool(value); | |
| if (0 <= v) | |
| return v; | |
| if (git_parse_int(value, &v)) | |
| return !!v; | |
| return -1; | |
| } | |
| int git_config_bool_or_int(const char *name, const char *value, int *is_bool) | |
| { | |
| int v = git_parse_maybe_bool(value); | |
| if (0 <= v) { | |
| *is_bool = 1; | |
| return v; | |
| } | |
| *is_bool = 0; | |
| return git_config_int(name, value); | |
| } | |
| int git_config_bool(const char *name, const char *value) | |
| { | |
| int discard; | |
| return !!git_config_bool_or_int(name, value, &discard); | |
| } | |
| int git_config_string(const char **dest, const char *var, const char *value) | |
| { | |
| if (!value) | |
| return config_error_nonbool(var); | |
| *dest = xstrdup(value); | |
| return 0; | |
| } | |
| int git_config_pathname(const char **dest, const char *var, const char *value) | |
| { | |
| if (!value) | |
| return config_error_nonbool(var); | |
| *dest = expand_user_path(value, 0); | |
| if (!*dest) | |
| die(_("failed to expand user dir in: '%s'"), value); | |
| return 0; | |
| } | |
| static int git_default_core_config(const char *var, const char *value) | |
| { | |
| /* This needs a better name */ | |
| if (!strcmp(var, "core.filemode")) { | |
| trust_executable_bit = git_config_bool(var, value); | |
| return 0; | |
| } | |
| if (!strcmp(var, "core.trustctime")) { | |
| trust_ctime = git_config_bool(var, value); | |
| return 0; | |
| } | |
| if (!strcmp(var, "core.checkstat")) { | |
| if (!strcasecmp(value, "default")) | |
| check_stat = 1; | |
| else if (!strcasecmp(value, "minimal")) | |
| check_stat = 0; | |
| } | |
| if (!strcmp(var, "core.quotepath")) { | |
| quote_path_fully = git_config_bool(var, value); | |
| return 0; | |
| } | |
| if (!strcmp(var, "core.symlinks")) { | |
| has_symlinks = git_config_bool(var, value); | |
| return 0; | |
| } | |
| if (!strcmp(var, "core.ignorecase")) { | |
| ignore_case = git_config_bool(var, value); | |
| return 0; | |
| } | |
| if (!strcmp(var, "core.attributesfile")) | |
| return git_config_pathname(&git_attributes_file, var, value); | |
| if (!strcmp(var, "core.hookspath")) | |
| return git_config_pathname(&git_hooks_path, var, value); | |
| if (!strcmp(var, "core.bare")) { | |
| is_bare_repository_cfg = git_config_bool(var, value); | |
| return 0; | |
| } | |
| if (!strcmp(var, "core.ignorestat")) { | |
| assume_unchanged = git_config_bool(var, value); | |
| return 0; | |
| } | |
| if (!strcmp(var, "core.prefersymlinkrefs")) { | |
| prefer_symlink_refs = git_config_bool(var, value); | |
| return 0; | |
| } | |
| if (!strcmp(var, "core.logallrefupdates")) { | |
| if (value && !strcasecmp(value, "always")) | |
| log_all_ref_updates = LOG_REFS_ALWAYS; | |
| else if (git_config_bool(var, value)) | |
| log_all_ref_updates = LOG_REFS_NORMAL; | |
| else | |
| log_all_ref_updates = LOG_REFS_NONE; | |
| return 0; | |
| } | |
| if (!strcmp(var, "core.warnambiguousrefs")) { | |
| warn_ambiguous_refs = git_config_bool(var, value); | |
| return 0; | |
| } | |
| if (!strcmp(var, "core.abbrev")) { | |
| if (!value) | |
| return config_error_nonbool(var); | |
| if (!strcasecmp(value, "auto")) | |
| default_abbrev = -1; | |
| else { | |
| int abbrev = git_config_int(var, value); | |
| if (abbrev < minimum_abbrev || abbrev > 40) | |
| return error("abbrev length out of range: %d", abbrev); | |
| default_abbrev = abbrev; | |
| } | |
| return 0; | |
| } | |
| if (!strcmp(var, "core.disambiguate")) | |
| return set_disambiguate_hint_config(var, value); | |
| if (!strcmp(var, "core.loosecompression")) { | |
| int level = git_config_int(var, value); | |
| if (level == -1) | |
| level = Z_DEFAULT_COMPRESSION; | |
| else if (level < 0 || level > Z_BEST_COMPRESSION) | |
| die(_("bad zlib compression level %d"), level); | |
| zlib_compression_level = level; | |
| zlib_compression_seen = 1; | |
| return 0; | |
| } | |
| if (!strcmp(var, "core.compression")) { | |
| int level = git_config_int(var, value); | |
| if (level == -1) | |
| level = Z_DEFAULT_COMPRESSION; | |
| else if (level < 0 || level > Z_BEST_COMPRESSION) | |
| die(_("bad zlib compression level %d"), level); | |
| core_compression_level = level; | |
| core_compression_seen = 1; | |
| if (!zlib_compression_seen) | |
| zlib_compression_level = level; | |
| if (!pack_compression_seen) | |
| pack_compression_level = level; | |
| return 0; | |
| } | |
| if (!strcmp(var, "core.packedgitwindowsize")) { | |
| int pgsz_x2 = getpagesize() * 2; | |
| packed_git_window_size = git_config_ulong(var, value); | |
| /* This value must be multiple of (pagesize * 2) */ | |
| packed_git_window_size /= pgsz_x2; | |
| if (packed_git_window_size < 1) | |
| packed_git_window_size = 1; | |
| packed_git_window_size *= pgsz_x2; | |
| return 0; | |
| } | |
| if (!strcmp(var, "core.bigfilethreshold")) { | |
| big_file_threshold = git_config_ulong(var, value); | |
| return 0; | |
| } | |
| if (!strcmp(var, "core.packedgitlimit")) { | |
| packed_git_limit = git_config_ulong(var, value); | |
| return 0; | |
| } | |
| if (!strcmp(var, "core.deltabasecachelimit")) { | |
| delta_base_cache_limit = git_config_ulong(var, value); | |
| return 0; | |
| } | |
| if (!strcmp(var, "core.autocrlf")) { | |
| if (value && !strcasecmp(value, "input")) { | |
| auto_crlf = AUTO_CRLF_INPUT; | |
| return 0; | |
| } | |
| auto_crlf = git_config_bool(var, value); | |
| return 0; | |
| } | |
| if (!strcmp(var, "core.safecrlf")) { | |
| if (value && !strcasecmp(value, "warn")) { | |
| safe_crlf = SAFE_CRLF_WARN; | |
| return 0; | |
| } | |
| safe_crlf = git_config_bool(var, value); | |
| return 0; | |
| } | |
| if (!strcmp(var, "core.eol")) { | |
| if (value && !strcasecmp(value, "lf")) | |
| core_eol = EOL_LF; | |
| else if (value && !strcasecmp(value, "crlf")) | |
| core_eol = EOL_CRLF; | |
| else if (value && !strcasecmp(value, "native")) | |
| core_eol = EOL_NATIVE; | |
| else | |
| core_eol = EOL_UNSET; | |
| return 0; | |
| } | |
| if (!strcmp(var, "core.notesref")) { | |
| notes_ref_name = xstrdup(value); | |
| return 0; | |
| } | |
| if (!strcmp(var, "core.editor")) | |
| return git_config_string(&editor_program, var, value); | |
| if (!strcmp(var, "core.commentchar")) { | |
| if (!value) | |
| return config_error_nonbool(var); | |
| else if (!strcasecmp(value, "auto")) | |
| auto_comment_line_char = 1; | |
| else if (value[0] && !value[1]) { | |
| comment_line_char = value[0]; | |
| auto_comment_line_char = 0; | |
| } else | |
| return error("core.commentChar should only be one character"); | |
| return 0; | |
| } | |
| if (!strcmp(var, "core.askpass")) | |
| return git_config_string(&askpass_program, var, value); | |
| if (!strcmp(var, "core.excludesfile")) | |
| return git_config_pathname(&excludes_file, var, value); | |
| if (!strcmp(var, "core.whitespace")) { | |
| if (!value) | |
| return config_error_nonbool(var); | |
| whitespace_rule_cfg = parse_whitespace_rule(value); | |
| return 0; | |
| } | |
| if (!strcmp(var, "core.fsyncobjectfiles")) { | |
| fsync_object_files = git_config_bool(var, value); | |
| return 0; | |
| } | |
| if (!strcmp(var, "core.preloadindex")) { | |
| core_preload_index = git_config_bool(var, value); | |
| return 0; | |
| } | |
| if (!strcmp(var, "core.createobject")) { | |
| if (!strcmp(value, "rename")) | |
| object_creation_mode = OBJECT_CREATION_USES_RENAMES; | |
| else if (!strcmp(value, "link")) | |
| object_creation_mode = OBJECT_CREATION_USES_HARDLINKS; | |
| else | |
| die(_("invalid mode for object creation: %s"), value); | |
| return 0; | |
| } | |
| if (!strcmp(var, "core.sparsecheckout")) { | |
| core_apply_sparse_checkout = git_config_bool(var, value); | |
| return 0; | |
| } | |
| if (!strcmp(var, "core.precomposeunicode")) { | |
| precomposed_unicode = git_config_bool(var, value); | |
| return 0; | |
| } | |
| if (!strcmp(var, "core.protecthfs")) { | |
| protect_hfs = git_config_bool(var, value); | |
| return 0; | |
| } | |
| if (!strcmp(var, "core.protectntfs")) { | |
| protect_ntfs = git_config_bool(var, value); | |
| return 0; | |
| } | |
| if (!strcmp(var, "core.hidedotfiles")) { | |
| if (value && !strcasecmp(value, "dotgitonly")) | |
| hide_dotfiles = HIDE_DOTFILES_DOTGITONLY; | |
| else | |
| hide_dotfiles = git_config_bool(var, value); | |
| return 0; | |
| } | |
| /* Add other config variables here and to Documentation/config.txt. */ | |
| return 0; | |
| } | |
| static int git_default_i18n_config(const char *var, const char *value) | |
| { | |
| if (!strcmp(var, "i18n.commitencoding")) | |
| return git_config_string(&git_commit_encoding, var, value); | |
| if (!strcmp(var, "i18n.logoutputencoding")) | |
| return git_config_string(&git_log_output_encoding, var, value); | |
| /* Add other config variables here and to Documentation/config.txt. */ | |
| return 0; | |
| } | |
| static int git_default_branch_config(const char *var, const char *value) | |
| { | |
| if (!strcmp(var, "branch.autosetupmerge")) { | |
| if (value && !strcasecmp(value, "always")) { | |
| git_branch_track = BRANCH_TRACK_ALWAYS; | |
| return 0; | |
| } | |
| git_branch_track = git_config_bool(var, value); | |
| return 0; | |
| } | |
| if (!strcmp(var, "branch.autosetuprebase")) { | |
| if (!value) | |
| return config_error_nonbool(var); | |
| else if (!strcmp(value, "never")) | |
| autorebase = AUTOREBASE_NEVER; | |
| else if (!strcmp(value, "local")) | |
| autorebase = AUTOREBASE_LOCAL; | |
| else if (!strcmp(value, "remote")) | |
| autorebase = AUTOREBASE_REMOTE; | |
| else if (!strcmp(value, "always")) | |
| autorebase = AUTOREBASE_ALWAYS; | |
| else | |
| return error("malformed value for %s", var); | |
| return 0; | |
| } | |
| /* Add other config variables here and to Documentation/config.txt. */ | |
| return 0; | |
| } | |
| static int git_default_push_config(const char *var, const char *value) | |
| { | |
| if (!strcmp(var, "push.default")) { | |
| if (!value) | |
| return config_error_nonbool(var); | |
| else if (!strcmp(value, "nothing")) | |
| push_default = PUSH_DEFAULT_NOTHING; | |
| else if (!strcmp(value, "matching")) | |
| push_default = PUSH_DEFAULT_MATCHING; | |
| else if (!strcmp(value, "simple")) | |
| push_default = PUSH_DEFAULT_SIMPLE; | |
| else if (!strcmp(value, "upstream")) | |
| push_default = PUSH_DEFAULT_UPSTREAM; | |
| else if (!strcmp(value, "tracking")) /* deprecated */ | |
| push_default = PUSH_DEFAULT_UPSTREAM; | |
| else if (!strcmp(value, "current")) | |
| push_default = PUSH_DEFAULT_CURRENT; | |
| else { | |
| error("malformed value for %s: %s", var, value); | |
| return error("Must be one of nothing, matching, simple, " | |
| "upstream or current."); | |
| } | |
| return 0; | |
| } | |
| /* Add other config variables here and to Documentation/config.txt. */ | |
| return 0; | |
| } | |
| static int git_default_mailmap_config(const char *var, const char *value) | |
| { | |
| if (!strcmp(var, "mailmap.file")) | |
| return git_config_pathname(&git_mailmap_file, var, value); | |
| if (!strcmp(var, "mailmap.blob")) | |
| return git_config_string(&git_mailmap_blob, var, value); | |
| /* Add other config variables here and to Documentation/config.txt. */ | |
| return 0; | |
| } | |
| int git_default_config(const char *var, const char *value, void *dummy) | |
| { | |
| if (starts_with(var, "core.")) | |
| return git_default_core_config(var, value); | |
| if (starts_with(var, "user.")) | |
| return git_ident_config(var, value, dummy); | |
| if (starts_with(var, "i18n.")) | |
| return git_default_i18n_config(var, value); | |
| if (starts_with(var, "branch.")) | |
| return git_default_branch_config(var, value); | |
| if (starts_with(var, "push.")) | |
| return git_default_push_config(var, value); | |
| if (starts_with(var, "mailmap.")) | |
| return git_default_mailmap_config(var, value); | |
| if (starts_with(var, "advice.")) | |
| return git_default_advice_config(var, value); | |
| if (!strcmp(var, "pager.color") || !strcmp(var, "color.pager")) { | |
| pager_use_color = git_config_bool(var,value); | |
| return 0; | |
| } | |
| if (!strcmp(var, "pack.packsizelimit")) { | |
| pack_size_limit_cfg = git_config_ulong(var, value); | |
| return 0; | |
| } | |
| if (!strcmp(var, "pack.compression")) { | |
| int level = git_config_int(var, value); | |
| if (level == -1) | |
| level = Z_DEFAULT_COMPRESSION; | |
| else if (level < 0 || level > Z_BEST_COMPRESSION) | |
| die(_("bad pack compression level %d"), level); | |
| pack_compression_level = level; | |
| pack_compression_seen = 1; | |
| return 0; | |
| } | |
| /* Add other config variables here and to Documentation/config.txt. */ | |
| return 0; | |
| } | |
| /* | |
| * All source specific fields in the union, die_on_error, name and the callbacks | |
| * fgetc, ungetc, ftell of top need to be initialized before calling | |
| * this function. | |
| */ | |
| static int do_config_from(struct config_source *top, config_fn_t fn, void *data) | |
| { | |
| int ret; | |
| /* push config-file parsing state stack */ | |
| top->prev = cf; | |
| top->linenr = 1; | |
| top->eof = 0; | |
| strbuf_init(&top->value, 1024); | |
| strbuf_init(&top->var, 1024); | |
| cf = top; | |
| ret = git_parse_source(fn, data); | |
| /* pop config-file parsing state stack */ | |
| strbuf_release(&top->value); | |
| strbuf_release(&top->var); | |
| cf = top->prev; | |
| return ret; | |
| } | |
| static int do_config_from_file(config_fn_t fn, | |
| const enum config_origin_type origin_type, | |
| const char *name, const char *path, FILE *f, | |
| void *data) | |
| { | |
| struct config_source top; | |
| top.u.file = f; | |
| top.origin_type = origin_type; | |
| top.name = name; | |
| top.path = path; | |
| top.die_on_error = 1; | |
| top.do_fgetc = config_file_fgetc; | |
| top.do_ungetc = config_file_ungetc; | |
| top.do_ftell = config_file_ftell; | |
| return do_config_from(&top, fn, data); | |
| } | |
| static int git_config_from_stdin(config_fn_t fn, void *data) | |
| { | |
| return do_config_from_file(fn, CONFIG_ORIGIN_STDIN, "", NULL, stdin, data); | |
| } | |
| int git_config_from_file(config_fn_t fn, const char *filename, void *data) | |
| { | |
| int ret = -1; | |
| FILE *f; | |
| f = fopen_or_warn(filename, "r"); | |
| if (f) { | |
| flockfile(f); | |
| ret = do_config_from_file(fn, CONFIG_ORIGIN_FILE, filename, filename, f, data); | |
| funlockfile(f); | |
| fclose(f); | |
| } | |
| return ret; | |
| } | |
| int git_config_from_mem(config_fn_t fn, const enum config_origin_type origin_type, | |
| const char *name, const char *buf, size_t len, void *data) | |
| { | |
| struct config_source top; | |
| top.u.buf.buf = buf; | |
| top.u.buf.len = len; | |
| top.u.buf.pos = 0; | |
| top.origin_type = origin_type; | |
| top.name = name; | |
| top.path = NULL; | |
| top.die_on_error = 0; | |
| top.do_fgetc = config_buf_fgetc; | |
| top.do_ungetc = config_buf_ungetc; | |
| top.do_ftell = config_buf_ftell; | |
| return do_config_from(&top, fn, data); | |
| } | |
| int git_config_from_blob_sha1(config_fn_t fn, | |
| const char *name, | |
| const unsigned char *sha1, | |
| void *data) | |
| { | |
| enum object_type type; | |
| char *buf; | |
| unsigned long size; | |
| int ret; | |
| buf = read_sha1_file(sha1, &type, &size); | |
| if (!buf) | |
| return error("unable to load config blob object '%s'", name); | |
| if (type != OBJ_BLOB) { | |
| free(buf); | |
| return error("reference '%s' does not point to a blob", name); | |
| } | |
| ret = git_config_from_mem(fn, CONFIG_ORIGIN_BLOB, name, buf, size, data); | |
| free(buf); | |
| return ret; | |
| } | |
| static int git_config_from_blob_ref(config_fn_t fn, | |
| const char *name, | |
| void *data) | |
| { | |
| unsigned char sha1[20]; | |
| if (get_sha1(name, sha1) < 0) | |
| return error("unable to resolve config blob '%s'", name); | |
| return git_config_from_blob_sha1(fn, name, sha1, data); | |
| } | |
| const char *git_etc_gitconfig(void) | |
| { | |
| static const char *system_wide; | |
| if (!system_wide) | |
| system_wide = system_path(ETC_GITCONFIG); | |
| return system_wide; | |
| } | |
| /* | |
| * Parse environment variable 'k' as a boolean (in various | |
| * possible spellings); if missing, use the default value 'def'. | |
| */ | |
| int git_env_bool(const char *k, int def) | |
| { | |
| const char *v = getenv(k); | |
| return v ? git_config_bool(k, v) : def; | |
| } | |
| /* | |
| * Parse environment variable 'k' as ulong with possibly a unit | |
| * suffix; if missing, use the default value 'val'. | |
| */ | |
| unsigned long git_env_ulong(const char *k, unsigned long val) | |
| { | |
| const char *v = getenv(k); | |
| if (v && !git_parse_ulong(v, &val)) | |
| die("failed to parse %s", k); | |
| return val; | |
| } | |
| int git_config_system(void) | |
| { | |
| return !git_env_bool("GIT_CONFIG_NOSYSTEM", 0); | |
| } | |
| static int do_git_config_sequence(const struct config_options *opts, | |
| config_fn_t fn, void *data) | |
| { | |
| int ret = 0; | |
| char *xdg_config = xdg_config_home("config"); | |
| char *user_config = expand_user_path("~/.gitconfig", 0); | |
| char *repo_config; | |
| if (opts->commondir) | |
| repo_config = mkpathdup("%s/config", opts->commondir); | |
| else | |
| repo_config = NULL; | |
| current_parsing_scope = CONFIG_SCOPE_SYSTEM; | |
| if (git_config_system() && !access_or_die(git_etc_gitconfig(), R_OK, 0)) | |
| ret += git_config_from_file(fn, git_etc_gitconfig(), | |
| data); | |
| current_parsing_scope = CONFIG_SCOPE_GLOBAL; | |
| if (xdg_config && !access_or_die(xdg_config, R_OK, ACCESS_EACCES_OK)) | |
| ret += git_config_from_file(fn, xdg_config, data); | |
| if (user_config && !access_or_die(user_config, R_OK, ACCESS_EACCES_OK)) | |
| ret += git_config_from_file(fn, user_config, data); | |
| current_parsing_scope = CONFIG_SCOPE_REPO; | |
| if (repo_config && !access_or_die(repo_config, R_OK, 0)) | |
| ret += git_config_from_file(fn, repo_config, data); | |
| current_parsing_scope = CONFIG_SCOPE_CMDLINE; | |
| if (git_config_from_parameters(fn, data) < 0) | |
| die(_("unable to parse command-line config")); | |
| current_parsing_scope = CONFIG_SCOPE_UNKNOWN; | |
| free(xdg_config); | |
| free(user_config); | |
| free(repo_config); | |
| return ret; | |
| } | |
| int config_with_options(config_fn_t fn, void *data, | |
| struct git_config_source *config_source, | |
| const struct config_options *opts) | |
| { | |
| struct config_include_data inc = CONFIG_INCLUDE_INIT; | |
| if (opts->respect_includes) { | |
| inc.fn = fn; | |
| inc.data = data; | |
| inc.opts = opts; | |
| fn = git_config_include; | |
| data = &inc; | |
| } | |
| /* | |
| * If we have a specific filename, use it. Otherwise, follow the | |
| * regular lookup sequence. | |
| */ | |
| if (config_source && config_source->use_stdin) | |
| return git_config_from_stdin(fn, data); | |
| else if (config_source && config_source->file) | |
| return git_config_from_file(fn, config_source->file, data); | |
| else if (config_source && config_source->blob) | |
| return git_config_from_blob_ref(fn, config_source->blob, data); | |
| return do_git_config_sequence(opts, fn, data); | |
| } | |
| static void configset_iter(struct config_set *cs, config_fn_t fn, void *data) | |
| { | |
| int i, value_index; | |
| struct string_list *values; | |
| struct config_set_element *entry; | |
| struct configset_list *list = &cs->list; | |
| for (i = 0; i < list->nr; i++) { | |
| entry = list->items[i].e; | |
| value_index = list->items[i].value_index; | |
| values = &entry->value_list; | |
| current_config_kvi = values->items[value_index].util; | |
| if (fn(entry->key, values->items[value_index].string, data) < 0) | |
| git_die_config_linenr(entry->key, | |
| current_config_kvi->filename, | |
| current_config_kvi->linenr); | |
| current_config_kvi = NULL; | |
| } | |
| } | |
| void read_early_config(config_fn_t cb, void *data) | |
| { | |
| struct config_options opts = {0}; | |
| struct strbuf commondir = STRBUF_INIT; | |
| struct strbuf gitdir = STRBUF_INIT; | |
| opts.respect_includes = 1; | |
| if (have_git_dir()) { | |
| opts.commondir = get_git_common_dir(); | |
| opts.git_dir = get_git_dir(); | |
| /* | |
| * When setup_git_directory() was not yet asked to discover the | |
| * GIT_DIR, we ask discover_git_directory() to figure out whether there | |
| * is any repository config we should use (but unlike | |
| * setup_git_directory_gently(), no global state is changed, most | |
| * notably, the current working directory is still the same after the | |
| * call). | |
| */ | |
| } else if (!discover_git_directory(&commondir, &gitdir)) { | |
| opts.commondir = commondir.buf; | |
| opts.git_dir = gitdir.buf; | |
| } | |
| config_with_options(cb, data, NULL, &opts); | |
| strbuf_release(&commondir); | |
| strbuf_release(&gitdir); | |
| } | |
| static struct config_set_element *configset_find_element(struct config_set *cs, const char *key) | |
| { | |
| struct config_set_element k; | |
| struct config_set_element *found_entry; | |
| char *normalized_key; | |
| /* | |
| * `key` may come from the user, so normalize it before using it | |
| * for querying entries from the hashmap. | |
| */ | |
| if (git_config_parse_key(key, &normalized_key, NULL)) | |
| return NULL; | |
| hashmap_entry_init(&k, strhash(normalized_key)); | |
| k.key = normalized_key; | |
| found_entry = hashmap_get(&cs->config_hash, &k, NULL); | |
| free(normalized_key); | |
| return found_entry; | |
| } | |
| static int configset_add_value(struct config_set *cs, const char *key, const char *value) | |
| { | |
| struct config_set_element *e; | |
| struct string_list_item *si; | |
| struct configset_list_item *l_item; | |
| struct key_value_info *kv_info = xmalloc(sizeof(*kv_info)); | |
| e = configset_find_element(cs, key); | |
| /* | |
| * Since the keys are being fed by git_config*() callback mechanism, they | |
| * are already normalized. So simply add them without any further munging. | |
| */ | |
| if (!e) { | |
| e = xmalloc(sizeof(*e)); | |
| hashmap_entry_init(e, strhash(key)); | |
| e->key = xstrdup(key); | |
| string_list_init(&e->value_list, 1); | |
| hashmap_add(&cs->config_hash, e); | |
| } | |
| si = string_list_append_nodup(&e->value_list, xstrdup_or_null(value)); | |
| ALLOC_GROW(cs->list.items, cs->list.nr + 1, cs->list.alloc); | |
| l_item = &cs->list.items[cs->list.nr++]; | |
| l_item->e = e; | |
| l_item->value_index = e->value_list.nr - 1; | |
| if (!cf) | |
| die("BUG: configset_add_value has no source"); | |
| if (cf->name) { | |
| kv_info->filename = strintern(cf->name); | |
| kv_info->linenr = cf->linenr; | |
| kv_info->origin_type = cf->origin_type; | |
| } else { | |
| /* for values read from `git_config_from_parameters()` */ | |
| kv_info->filename = NULL; | |
| kv_info->linenr = -1; | |
| kv_info->origin_type = CONFIG_ORIGIN_CMDLINE; | |
| } | |
| kv_info->scope = current_parsing_scope; | |
| si->util = kv_info; | |
| return 0; | |
| } | |
| static int config_set_element_cmp(const void *unused_cmp_data, | |
| const struct config_set_element *e1, | |
| const struct config_set_element *e2, | |
| const void *unused_keydata) | |
| { | |
| return strcmp(e1->key, e2->key); | |
| } | |
| void git_configset_init(struct config_set *cs) | |
| { | |
| hashmap_init(&cs->config_hash, (hashmap_cmp_fn)config_set_element_cmp, | |
| NULL, 0); | |
| cs->hash_initialized = 1; | |
| cs->list.nr = 0; | |
| cs->list.alloc = 0; | |
| cs->list.items = NULL; | |
| } | |
| void git_configset_clear(struct config_set *cs) | |
| { | |
| struct config_set_element *entry; | |
| struct hashmap_iter iter; | |
| if (!cs->hash_initialized) | |
| return; | |
| hashmap_iter_init(&cs->config_hash, &iter); | |
| while ((entry = hashmap_iter_next(&iter))) { | |
| free(entry->key); | |
| string_list_clear(&entry->value_list, 1); | |
| } | |
| hashmap_free(&cs->config_hash, 1); | |
| cs->hash_initialized = 0; | |
| free(cs->list.items); | |
| cs->list.nr = 0; | |
| cs->list.alloc = 0; | |
| cs->list.items = NULL; | |
| } | |
| static int config_set_callback(const char *key, const char *value, void *cb) | |
| { | |
| struct config_set *cs = cb; | |
| configset_add_value(cs, key, value); | |
| return 0; | |
| } | |
| int git_configset_add_file(struct config_set *cs, const char *filename) | |
| { | |
| return git_config_from_file(config_set_callback, filename, cs); | |
| } | |
| int git_configset_get_value(struct config_set *cs, const char *key, const char **value) | |
| { | |
| const struct string_list *values = NULL; | |
| /* | |
| * Follows "last one wins" semantic, i.e., if there are multiple matches for the | |
| * queried key in the files of the configset, the value returned will be the last | |
| * value in the value list for that key. | |
| */ | |
| values = git_configset_get_value_multi(cs, key); | |
| if (!values) | |
| return 1; | |
| assert(values->nr > 0); | |
| *value = values->items[values->nr - 1].string; | |
| return 0; | |
| } | |
| const struct string_list *git_configset_get_value_multi(struct config_set *cs, const char *key) | |
| { | |
| struct config_set_element *e = configset_find_element(cs, key); | |
| return e ? &e->value_list : NULL; | |
| } | |
| int git_configset_get_string_const(struct config_set *cs, const char *key, const char **dest) | |
| { | |
| const char *value; | |
| if (!git_configset_get_value(cs, key, &value)) | |
| return git_config_string(dest, key, value); | |
| else | |
| return 1; | |
| } | |
| int git_configset_get_string(struct config_set *cs, const char *key, char **dest) | |
| { | |
| return git_configset_get_string_const(cs, key, (const char **)dest); | |
| } | |
| int git_configset_get_int(struct config_set *cs, const char *key, int *dest) | |
| { | |
| const char *value; | |
| if (!git_configset_get_value(cs, key, &value)) { | |
| *dest = git_config_int(key, value); | |
| return 0; | |
| } else | |
| return 1; | |
| } | |
| int git_configset_get_ulong(struct config_set *cs, const char *key, unsigned long *dest) | |
| { | |
| const char *value; | |
| if (!git_configset_get_value(cs, key, &value)) { | |
| *dest = git_config_ulong(key, value); | |
| return 0; | |
| } else | |
| return 1; | |
| } | |
| int git_configset_get_bool(struct config_set *cs, const char *key, int *dest) | |
| { | |
| const char *value; | |
| if (!git_configset_get_value(cs, key, &value)) { | |
| *dest = git_config_bool(key, value); | |
| return 0; | |
| } else | |
| return 1; | |
| } | |
| int git_configset_get_bool_or_int(struct config_set *cs, const char *key, | |
| int *is_bool, int *dest) | |
| { | |
| const char *value; | |
| if (!git_configset_get_value(cs, key, &value)) { | |
| *dest = git_config_bool_or_int(key, value, is_bool); | |
| return 0; | |
| } else | |
| return 1; | |
| } | |
| int git_configset_get_maybe_bool(struct config_set *cs, const char *key, int *dest) | |
| { | |
| const char *value; | |
| if (!git_configset_get_value(cs, key, &value)) { | |
| *dest = git_config_maybe_bool(key, value); | |
| if (*dest == -1) | |
| return -1; | |
| return 0; | |
| } else | |
| return 1; | |
| } | |
| int git_configset_get_pathname(struct config_set *cs, const char *key, const char **dest) | |
| { | |
| const char *value; | |
| if (!git_configset_get_value(cs, key, &value)) | |
| return git_config_pathname(dest, key, value); | |
| else | |
| return 1; | |
| } | |
| /* Functions use to read configuration from a repository */ | |
| static void repo_read_config(struct repository *repo) | |
| { | |
| struct config_options opts; | |
| opts.respect_includes = 1; | |
| opts.commondir = repo->commondir; | |
| opts.git_dir = repo->gitdir; | |
| if (!repo->config) | |
| repo->config = xcalloc(1, sizeof(struct config_set)); | |
| else | |
| git_configset_clear(repo->config); | |
| git_configset_init(repo->config); | |
| if (config_with_options(config_set_callback, repo->config, NULL, &opts) < 0) | |
| /* | |
| * config_with_options() normally returns only | |
| * zero, as most errors are fatal, and | |
| * non-fatal potential errors are guarded by "if" | |
| * statements that are entered only when no error is | |
| * possible. | |
| * | |
| * If we ever encounter a non-fatal error, it means | |
| * something went really wrong and we should stop | |
| * immediately. | |
| */ | |
| die(_("unknown error occurred while reading the configuration files")); | |
| } | |
| static void git_config_check_init(struct repository *repo) | |
| { | |
| if (repo->config && repo->config->hash_initialized) | |
| return; | |
| repo_read_config(repo); | |
| } | |
| static void repo_config_clear(struct repository *repo) | |
| { | |
| if (!repo->config || !repo->config->hash_initialized) | |
| return; | |
| git_configset_clear(repo->config); | |
| } | |
| void repo_config(struct repository *repo, config_fn_t fn, void *data) | |
| { | |
| git_config_check_init(repo); | |
| configset_iter(repo->config, fn, data); | |
| } | |
| int repo_config_get_value(struct repository *repo, | |
| const char *key, const char **value) | |
| { | |
| git_config_check_init(repo); | |
| return git_configset_get_value(repo->config, key, value); | |
| } | |
| const struct string_list *repo_config_get_value_multi(struct repository *repo, | |
| const char *key) | |
| { | |
| git_config_check_init(repo); | |
| return git_configset_get_value_multi(repo->config, key); | |
| } | |
| int repo_config_get_string_const(struct repository *repo, | |
| const char *key, const char **dest) | |
| { | |
| int ret; | |
| git_config_check_init(repo); | |
| ret = git_configset_get_string_const(repo->config, key, dest); | |
| if (ret < 0) | |
| git_die_config(key, NULL); | |
| return ret; | |
| } | |
| int repo_config_get_string(struct repository *repo, | |
| const char *key, char **dest) | |
| { | |
| git_config_check_init(repo); | |
| return repo_config_get_string_const(repo, key, (const char **)dest); | |
| } | |
| int repo_config_get_int(struct repository *repo, | |
| const char *key, int *dest) | |
| { | |
| git_config_check_init(repo); | |
| return git_configset_get_int(repo->config, key, dest); | |
| } | |
| int repo_config_get_ulong(struct repository *repo, | |
| const char *key, unsigned long *dest) | |
| { | |
| git_config_check_init(repo); | |
| return git_configset_get_ulong(repo->config, key, dest); | |
| } | |
| int repo_config_get_bool(struct repository *repo, | |
| const char *key, int *dest) | |
| { | |
| git_config_check_init(repo); | |
| return git_configset_get_bool(repo->config, key, dest); | |
| } | |
| int repo_config_get_bool_or_int(struct repository *repo, | |
| const char *key, int *is_bool, int *dest) | |
| { | |
| git_config_check_init(repo); | |
| return git_configset_get_bool_or_int(repo->config, key, is_bool, dest); | |
| } | |
| int repo_config_get_maybe_bool(struct repository *repo, | |
| const char *key, int *dest) | |
| { | |
| git_config_check_init(repo); | |
| return git_configset_get_maybe_bool(repo->config, key, dest); | |
| } | |
| int repo_config_get_pathname(struct repository *repo, | |
| const char *key, const char **dest) | |
| { | |
| int ret; | |
| git_config_check_init(repo); | |
| ret = git_configset_get_pathname(repo->config, key, dest); | |
| if (ret < 0) | |
| git_die_config(key, NULL); | |
| return ret; | |
| } | |
| /* Functions used historically to read configuration from 'the_repository' */ | |
| void git_config(config_fn_t fn, void *data) | |
| { | |
| repo_config(the_repository, fn, data); | |
| } | |
| void git_config_clear(void) | |
| { | |
| repo_config_clear(the_repository); | |
| } | |
| int git_config_get_value(const char *key, const char **value) | |
| { | |
| return repo_config_get_value(the_repository, key, value); | |
| } | |
| const struct string_list *git_config_get_value_multi(const char *key) | |
| { | |
| return repo_config_get_value_multi(the_repository, key); | |
| } | |
| int git_config_get_string_const(const char *key, const char **dest) | |
| { | |
| return repo_config_get_string_const(the_repository, key, dest); | |
| } | |
| int git_config_get_string(const char *key, char **dest) | |
| { | |
| return repo_config_get_string(the_repository, key, dest); | |
| } | |
| int git_config_get_int(const char *key, int *dest) | |
| { | |
| return repo_config_get_int(the_repository, key, dest); | |
| } | |
| int git_config_get_ulong(const char *key, unsigned long *dest) | |
| { | |
| return repo_config_get_ulong(the_repository, key, dest); | |
| } | |
| int git_config_get_bool(const char *key, int *dest) | |
| { | |
| return repo_config_get_bool(the_repository, key, dest); | |
| } | |
| int git_config_get_bool_or_int(const char *key, int *is_bool, int *dest) | |
| { | |
| return repo_config_get_bool_or_int(the_repository, key, is_bool, dest); | |
| } | |
| int git_config_get_maybe_bool(const char *key, int *dest) | |
| { | |
| return repo_config_get_maybe_bool(the_repository, key, dest); | |
| } | |
| int git_config_get_pathname(const char *key, const char **dest) | |
| { | |
| return repo_config_get_pathname(the_repository, key, dest); | |
| } | |
| int git_config_get_expiry(const char *key, const char **output) | |
| { | |
| int ret = git_config_get_string_const(key, output); | |
| if (ret) | |
| return ret; | |
| if (strcmp(*output, "now")) { | |
| timestamp_t now = approxidate("now"); | |
| if (approxidate(*output) >= now) | |
| git_die_config(key, _("Invalid %s: '%s'"), key, *output); | |
| } | |
| return ret; | |
| } | |
| int git_config_get_untracked_cache(void) | |
| { | |
| int val = -1; | |
| const char *v; | |
| /* Hack for test programs like test-dump-untracked-cache */ | |
| if (ignore_untracked_cache_config) | |
| return -1; | |
| if (!git_config_get_maybe_bool("core.untrackedcache", &val)) | |
| return val; | |
| if (!git_config_get_value("core.untrackedcache", &v)) { | |
| if (!strcasecmp(v, "keep")) | |
| return -1; | |
| error(_("unknown core.untrackedCache value '%s'; " | |
| "using 'keep' default value"), v); | |
| return -1; | |
| } | |
| return -1; /* default value */ | |
| } | |
| int git_config_get_split_index(void) | |
| { | |
| int val; | |
| if (!git_config_get_maybe_bool("core.splitindex", &val)) | |
| return val; | |
| return -1; /* default value */ | |
| } | |
| int git_config_get_max_percent_split_change(void) | |
| { | |
| int val = -1; | |
| if (!git_config_get_int("splitindex.maxpercentchange", &val)) { | |
| if (0 <= val && val <= 100) | |
| return val; | |
| return error(_("splitIndex.maxPercentChange value '%d' " | |
| "should be between 0 and 100"), val); | |
| } | |
| return -1; /* default value */ | |
| } | |
| NORETURN | |
| void git_die_config_linenr(const char *key, const char *filename, int linenr) | |
| { | |
| if (!filename) | |
| die(_("unable to parse '%s' from command-line config"), key); | |
| else | |
| die(_("bad config variable '%s' in file '%s' at line %d"), | |
| key, filename, linenr); | |
| } | |
| NORETURN __attribute__((format(printf, 2, 3))) | |
| void git_die_config(const char *key, const char *err, ...) | |
| { | |
| const struct string_list *values; | |
| struct key_value_info *kv_info; | |
| if (err) { | |
| va_list params; | |
| va_start(params, err); | |
| vreportf("error: ", err, params); | |
| va_end(params); | |
| } | |
| values = git_config_get_value_multi(key); | |
| kv_info = values->items[values->nr - 1].util; | |
| git_die_config_linenr(key, kv_info->filename, kv_info->linenr); | |
| } | |
| /* | |
| * Find all the stuff for git_config_set() below. | |
| */ | |
| static struct { | |
| int baselen; | |
| char *key; | |
| int do_not_match; | |
| regex_t *value_regex; | |
| int multi_replace; | |
| size_t *offset; | |
| unsigned int offset_alloc; | |
| enum { START, SECTION_SEEN, SECTION_END_SEEN, KEY_SEEN } state; | |
| int seen; | |
| } store; | |
| static int matches(const char *key, const char *value) | |
| { | |
| if (strcmp(key, store.key)) | |
| return 0; /* not ours */ | |
| if (!store.value_regex) | |
| return 1; /* always matches */ | |
| if (store.value_regex == CONFIG_REGEX_NONE) | |
| return 0; /* never matches */ | |
| return store.do_not_match ^ | |
| (value && !regexec(store.value_regex, value, 0, NULL, 0)); | |
| } | |
| static int store_aux(const char *key, const char *value, void *cb) | |
| { | |
| const char *ep; | |
| size_t section_len; | |
| switch (store.state) { | |
| case KEY_SEEN: | |
| if (matches(key, value)) { | |
| if (store.seen == 1 && store.multi_replace == 0) { | |
| warning(_("%s has multiple values"), key); | |
| } | |
| ALLOC_GROW(store.offset, store.seen + 1, | |
| store.offset_alloc); | |
| store.offset[store.seen] = cf->do_ftell(cf); | |
| store.seen++; | |
| } | |
| break; | |
| case SECTION_SEEN: | |
| /* | |
| * What we are looking for is in store.key (both | |
| * section and var), and its section part is baselen | |
| * long. We found key (again, both section and var). | |
| * We would want to know if this key is in the same | |
| * section as what we are looking for. We already | |
| * know we are in the same section as what should | |
| * hold store.key. | |
| */ | |
| ep = strrchr(key, '.'); | |
| section_len = ep - key; | |
| if ((section_len != store.baselen) || | |
| memcmp(key, store.key, section_len+1)) { | |
| store.state = SECTION_END_SEEN; | |
| break; | |
| } | |
| /* | |
| * Do not increment matches: this is no match, but we | |
| * just made sure we are in the desired section. | |
| */ | |
| ALLOC_GROW(store.offset, store.seen + 1, | |
| store.offset_alloc); | |
| store.offset[store.seen] = cf->do_ftell(cf); | |
| /* fallthru */ | |
| case SECTION_END_SEEN: | |
| case START: | |
| if (matches(key, value)) { | |
| ALLOC_GROW(store.offset, store.seen + 1, | |
| store.offset_alloc); | |
| store.offset[store.seen] = cf->do_ftell(cf); | |
| store.state = KEY_SEEN; | |
| store.seen++; | |
| } else { | |
| if (strrchr(key, '.') - key == store.baselen && | |
| !strncmp(key, store.key, store.baselen)) { | |
| store.state = SECTION_SEEN; | |
| ALLOC_GROW(store.offset, | |
| store.seen + 1, | |
| store.offset_alloc); | |
| store.offset[store.seen] = cf->do_ftell(cf); | |
| } | |
| } | |
| } | |
| return 0; | |
| } | |
| static int write_error(const char *filename) | |
| { | |
| error("failed to write new configuration file %s", filename); | |
| /* Same error code as "failed to rename". */ | |
| return 4; | |
| } | |
| static int store_write_section(int fd, const char *key) | |
| { | |
| const char *dot; | |
| int i, success; | |
| struct strbuf sb = STRBUF_INIT; | |
| dot = memchr(key, '.', store.baselen); | |
| if (dot) { | |
| strbuf_addf(&sb, "[%.*s \"", (int)(dot - key), key); | |
| for (i = dot - key + 1; i < store.baselen; i++) { | |
| if (key[i] == '"' || key[i] == '\\') | |
| strbuf_addch(&sb, '\\'); | |
| strbuf_addch(&sb, key[i]); | |
| } | |
| strbuf_addstr(&sb, "\"]\n"); | |
| } else { | |
| strbuf_addf(&sb, "[%.*s]\n", store.baselen, key); | |
| } | |
| success = write_in_full(fd, sb.buf, sb.len) == sb.len; | |
| strbuf_release(&sb); | |
| return success; | |
| } | |
| static int store_write_pair(int fd, const char *key, const char *value) | |
| { | |
| int i, success; | |
| int length = strlen(key + store.baselen + 1); | |
| const char *quote = ""; | |
| struct strbuf sb = STRBUF_INIT; | |
| /* | |
| * Check to see if the value needs to be surrounded with a dq pair. | |
| * Note that problematic characters are always backslash-quoted; this | |
| * check is about not losing leading or trailing SP and strings that | |
| * follow beginning-of-comment characters (i.e. ';' and '#') by the | |
| * configuration parser. | |
| */ | |
| if (value[0] == ' ') | |
| quote = "\""; | |
| for (i = 0; value[i]; i++) | |
| if (value[i] == ';' || value[i] == '#') | |
| quote = "\""; | |
| if (i && value[i - 1] == ' ') | |
| quote = "\""; | |
| strbuf_addf(&sb, "\t%.*s = %s", | |
| length, key + store.baselen + 1, quote); | |
| for (i = 0; value[i]; i++) | |
| switch (value[i]) { | |
| case '\n': | |
| strbuf_addstr(&sb, "\\n"); | |
| break; | |
| case '\t': | |
| strbuf_addstr(&sb, "\\t"); | |
| break; | |
| case '"': | |
| case '\\': | |
| strbuf_addch(&sb, '\\'); | |
| default: | |
| strbuf_addch(&sb, value[i]); | |
| break; | |
| } | |
| strbuf_addf(&sb, "%s\n", quote); | |
| success = write_in_full(fd, sb.buf, sb.len) == sb.len; | |
| strbuf_release(&sb); | |
| return success; | |
| } | |
| static ssize_t find_beginning_of_line(const char *contents, size_t size, | |
| size_t offset_, int *found_bracket) | |
| { | |
| size_t equal_offset = size, bracket_offset = size; | |
| ssize_t offset; | |
| contline: | |
| for (offset = offset_-2; offset > 0 | |
| && contents[offset] != '\n'; offset--) | |
| switch (contents[offset]) { | |
| case '=': equal_offset = offset; break; | |
| case ']': bracket_offset = offset; break; | |
| } | |
| if (offset > 0 && contents[offset-1] == '\\') { | |
| offset_ = offset; | |
| goto contline; | |
| } | |
| if (bracket_offset < equal_offset) { | |
| *found_bracket = 1; | |
| offset = bracket_offset+1; | |
| } else | |
| offset++; | |
| return offset; | |
| } | |
| int git_config_set_in_file_gently(const char *config_filename, | |
| const char *key, const char *value) | |
| { | |
| return git_config_set_multivar_in_file_gently(config_filename, key, value, NULL, 0); | |
| } | |
| void git_config_set_in_file(const char *config_filename, | |
| const char *key, const char *value) | |
| { | |
| git_config_set_multivar_in_file(config_filename, key, value, NULL, 0); | |
| } | |
| int git_config_set_gently(const char *key, const char *value) | |
| { | |
| return git_config_set_multivar_gently(key, value, NULL, 0); | |
| } | |
| void git_config_set(const char *key, const char *value) | |
| { | |
| git_config_set_multivar(key, value, NULL, 0); | |
| } | |
| /* | |
| * If value==NULL, unset in (remove from) config, | |
| * if value_regex!=NULL, disregard key/value pairs where value does not match. | |
| * if value_regex==CONFIG_REGEX_NONE, do not match any existing values | |
| * (only add a new one) | |
| * if multi_replace==0, nothing, or only one matching key/value is replaced, | |
| * else all matching key/values (regardless how many) are removed, | |
| * before the new pair is written. | |
| * | |
| * Returns 0 on success. | |
| * | |
| * This function does this: | |
| * | |
| * - it locks the config file by creating ".git/config.lock" | |
| * | |
| * - it then parses the config using store_aux() as validator to find | |
| * the position on the key/value pair to replace. If it is to be unset, | |
| * it must be found exactly once. | |
| * | |
| * - the config file is mmap()ed and the part before the match (if any) is | |
| * written to the lock file, then the changed part and the rest. | |
| * | |
| * - the config file is removed and the lock file rename()d to it. | |
| * | |
| */ | |
| int git_config_set_multivar_in_file_gently(const char *config_filename, | |
| const char *key, const char *value, | |
| const char *value_regex, | |
| int multi_replace) | |
| { | |
| int fd = -1, in_fd = -1; | |
| int ret; | |
| struct lock_file *lock = NULL; | |
| char *filename_buf = NULL; | |
| char *contents = NULL; | |
| size_t contents_sz; | |
| /* parse-key returns negative; flip the sign to feed exit(3) */ | |
| ret = 0 - git_config_parse_key(key, &store.key, &store.baselen); | |
| if (ret) | |
| goto out_free; | |
| store.multi_replace = multi_replace; | |
| if (!config_filename) | |
| config_filename = filename_buf = git_pathdup("config"); | |
| /* | |
| * The lock serves a purpose in addition to locking: the new | |
| * contents of .git/config will be written into it. | |
| */ | |
| lock = xcalloc(1, sizeof(struct lock_file)); | |
| fd = hold_lock_file_for_update(lock, config_filename, 0); | |
| if (fd < 0) { | |
| error_errno("could not lock config file %s", config_filename); | |
| free(store.key); | |
| ret = CONFIG_NO_LOCK; | |
| goto out_free; | |
| } | |
| /* | |
| * If .git/config does not exist yet, write a minimal version. | |
| */ | |
| in_fd = open(config_filename, O_RDONLY); | |
| if ( in_fd < 0 ) { | |
| free(store.key); | |
| if ( ENOENT != errno ) { | |
| error_errno("opening %s", config_filename); | |
| ret = CONFIG_INVALID_FILE; /* same as "invalid config file" */ | |
| goto out_free; | |
| } | |
| /* if nothing to unset, error out */ | |
| if (value == NULL) { | |
| ret = CONFIG_NOTHING_SET; | |
| goto out_free; | |
| } | |
| store.key = (char *)key; | |
| if (!store_write_section(fd, key) || | |
| !store_write_pair(fd, key, value)) | |
| goto write_err_out; | |
| } else { | |
| struct stat st; | |
| size_t copy_begin, copy_end; | |
| int i, new_line = 0; | |
| if (value_regex == NULL) | |
| store.value_regex = NULL; | |
| else if (value_regex == CONFIG_REGEX_NONE) | |
| store.value_regex = CONFIG_REGEX_NONE; | |
| else { | |
| if (value_regex[0] == '!') { | |
| store.do_not_match = 1; | |
| value_regex++; | |
| } else | |
| store.do_not_match = 0; | |
| store.value_regex = (regex_t*)xmalloc(sizeof(regex_t)); | |
| if (regcomp(store.value_regex, value_regex, | |
| REG_EXTENDED)) { | |
| error("invalid pattern: %s", value_regex); | |
| free(store.value_regex); | |
| ret = CONFIG_INVALID_PATTERN; | |
| goto out_free; | |
| } | |
| } | |
| ALLOC_GROW(store.offset, 1, store.offset_alloc); | |
| store.offset[0] = 0; | |
| store.state = START; | |
| store.seen = 0; | |
| /* | |
| * After this, store.offset will contain the *end* offset | |
| * of the last match, or remain at 0 if no match was found. | |
| * As a side effect, we make sure to transform only a valid | |
| * existing config file. | |
| */ | |
| if (git_config_from_file(store_aux, config_filename, NULL)) { | |
| error("invalid config file %s", config_filename); | |
| free(store.key); | |
| if (store.value_regex != NULL && | |
| store.value_regex != CONFIG_REGEX_NONE) { | |
| regfree(store.value_regex); | |
| free(store.value_regex); | |
| } | |
| ret = CONFIG_INVALID_FILE; | |
| goto out_free; | |
| } | |
| free(store.key); | |
| if (store.value_regex != NULL && | |
| store.value_regex != CONFIG_REGEX_NONE) { | |
| regfree(store.value_regex); | |
| free(store.value_regex); | |
| } | |
| /* if nothing to unset, or too many matches, error out */ | |
| if ((store.seen == 0 && value == NULL) || | |
| (store.seen > 1 && multi_replace == 0)) { | |
| ret = CONFIG_NOTHING_SET; | |
| goto out_free; | |
| } | |
| if (fstat(in_fd, &st) == -1) { | |
| error_errno(_("fstat on %s failed"), config_filename); | |
| ret = CONFIG_INVALID_FILE; | |
| goto out_free; | |
| } | |
| contents_sz = xsize_t(st.st_size); | |
| contents = xmmap_gently(NULL, contents_sz, PROT_READ, | |
| MAP_PRIVATE, in_fd, 0); | |
| if (contents == MAP_FAILED) { | |
| if (errno == ENODEV && S_ISDIR(st.st_mode)) | |
| errno = EISDIR; | |
| error_errno("unable to mmap '%s'", config_filename); | |
| ret = CONFIG_INVALID_FILE; | |
| contents = NULL; | |
| goto out_free; | |
| } | |
| close(in_fd); | |
| in_fd = -1; | |
| if (chmod(get_lock_file_path(lock), st.st_mode & 07777) < 0) { | |
| error_errno("chmod on %s failed", get_lock_file_path(lock)); | |
| ret = CONFIG_NO_WRITE; | |
| goto out_free; | |
| } | |
| if (store.seen == 0) | |
| store.seen = 1; | |
| for (i = 0, copy_begin = 0; i < store.seen; i++) { | |
| if (store.offset[i] == 0) { | |
| store.offset[i] = copy_end = contents_sz; | |
| } else if (store.state != KEY_SEEN) { | |
| copy_end = store.offset[i]; | |
| } else | |
| copy_end = find_beginning_of_line( | |
| contents, contents_sz, | |
| store.offset[i]-2, &new_line); | |
| if (copy_end > 0 && contents[copy_end-1] != '\n') | |
| new_line = 1; | |
| /* write the first part of the config */ | |
| if (copy_end > copy_begin) { | |
| if (write_in_full(fd, contents + copy_begin, | |
| copy_end - copy_begin) < | |
| copy_end - copy_begin) | |
| goto write_err_out; | |
| if (new_line && | |
| write_str_in_full(fd, "\n") != 1) | |
| goto write_err_out; | |
| } | |
| copy_begin = store.offset[i]; | |
| } | |
| /* write the pair (value == NULL means unset) */ | |
| if (value != NULL) { | |
| if (store.state == START) { | |
| if (!store_write_section(fd, key)) | |
| goto write_err_out; | |
| } | |
| if (!store_write_pair(fd, key, value)) | |
| goto write_err_out; | |
| } | |
| /* write the rest of the config */ | |
| if (copy_begin < contents_sz) | |
| if (write_in_full(fd, contents + copy_begin, | |
| contents_sz - copy_begin) < | |
| contents_sz - copy_begin) | |
| goto write_err_out; | |
| munmap(contents, contents_sz); | |
| contents = NULL; | |
| } | |
| if (commit_lock_file(lock) < 0) { | |
| error_errno("could not write config file %s", config_filename); | |
| ret = CONFIG_NO_WRITE; | |
| lock = NULL; | |
| goto out_free; | |
| } | |
| /* | |
| * lock is committed, so don't try to roll it back below. | |
| * NOTE: Since lockfile.c keeps a linked list of all created | |
| * lock_file structures, it isn't safe to free(lock). It's | |
| * better to just leave it hanging around. | |
| */ | |
| lock = NULL; | |
| ret = 0; | |
| /* Invalidate the config cache */ | |
| git_config_clear(); | |
| out_free: | |
| if (lock) | |
| rollback_lock_file(lock); | |
| free(filename_buf); | |
| if (contents) | |
| munmap(contents, contents_sz); | |
| if (in_fd >= 0) | |
| close(in_fd); | |
| return ret; | |
| write_err_out: | |
| ret = write_error(get_lock_file_path(lock)); | |
| goto out_free; | |
| } | |
| void git_config_set_multivar_in_file(const char *config_filename, | |
| const char *key, const char *value, | |
| const char *value_regex, int multi_replace) | |
| { | |
| if (!git_config_set_multivar_in_file_gently(config_filename, key, value, | |
| value_regex, multi_replace)) | |
| return; | |
| if (value) | |
| die(_("could not set '%s' to '%s'"), key, value); | |
| else | |
| die(_("could not unset '%s'"), key); | |
| } | |
| int git_config_set_multivar_gently(const char *key, const char *value, | |
| const char *value_regex, int multi_replace) | |
| { | |
| return git_config_set_multivar_in_file_gently(NULL, key, value, value_regex, | |
| multi_replace); | |
| } | |
| void git_config_set_multivar(const char *key, const char *value, | |
| const char *value_regex, int multi_replace) | |
| { | |
| git_config_set_multivar_in_file(NULL, key, value, value_regex, | |
| multi_replace); | |
| } | |
| static int section_name_match (const char *buf, const char *name) | |
| { | |
| int i = 0, j = 0, dot = 0; | |
| if (buf[i] != '[') | |
| return 0; | |
| for (i = 1; buf[i] && buf[i] != ']'; i++) { | |
| if (!dot && isspace(buf[i])) { | |
| dot = 1; | |
| if (name[j++] != '.') | |
| break; | |
| for (i++; isspace(buf[i]); i++) | |
| ; /* do nothing */ | |
| if (buf[i] != '"') | |
| break; | |
| continue; | |
| } | |
| if (buf[i] == '\\' && dot) | |
| i++; | |
| else if (buf[i] == '"' && dot) { | |
| for (i++; isspace(buf[i]); i++) | |
| ; /* do_nothing */ | |
| break; | |
| } | |
| if (buf[i] != name[j++]) | |
| break; | |
| } | |
| if (buf[i] == ']' && name[j] == 0) { | |
| /* | |
| * We match, now just find the right length offset by | |
| * gobbling up any whitespace after it, as well | |
| */ | |
| i++; | |
| for (; buf[i] && isspace(buf[i]); i++) | |
| ; /* do nothing */ | |
| return i; | |
| } | |
| return 0; | |
| } | |
| static int section_name_is_ok(const char *name) | |
| { | |
| /* Empty section names are bogus. */ | |
| if (!*name) | |
| return 0; | |
| /* | |
| * Before a dot, we must be alphanumeric or dash. After the first dot, | |
| * anything goes, so we can stop checking. | |
| */ | |
| for (; *name && *name != '.'; name++) | |
| if (*name != '-' && !isalnum(*name)) | |
| return 0; | |
| return 1; | |
| } | |
| /* if new_name == NULL, the section is removed instead */ | |
| int git_config_rename_section_in_file(const char *config_filename, | |
| const char *old_name, const char *new_name) | |
| { | |
| int ret = 0, remove = 0; | |
| char *filename_buf = NULL; | |
| struct lock_file *lock; | |
| int out_fd; | |
| char buf[1024]; | |
| FILE *config_file = NULL; | |
| struct stat st; | |
| if (new_name && !section_name_is_ok(new_name)) { | |
| ret = error("invalid section name: %s", new_name); | |
| goto out_no_rollback; | |
| } | |
| if (!config_filename) | |
| config_filename = filename_buf = git_pathdup("config"); | |
| lock = xcalloc(1, sizeof(struct lock_file)); | |
| out_fd = hold_lock_file_for_update(lock, config_filename, 0); | |
| if (out_fd < 0) { | |
| ret = error("could not lock config file %s", config_filename); | |
| goto out; | |
| } | |
| if (!(config_file = fopen(config_filename, "rb"))) { | |
| ret = warn_on_fopen_errors(config_filename); | |
| if (ret) | |
| goto out; | |
| /* no config file means nothing to rename, no error */ | |
| goto commit_and_out; | |
| } | |
| if (fstat(fileno(config_file), &st) == -1) { | |
| ret = error_errno(_("fstat on %s failed"), config_filename); | |
| goto out; | |
| } | |
| if (chmod(get_lock_file_path(lock), st.st_mode & 07777) < 0) { | |
| ret = error_errno("chmod on %s failed", | |
| get_lock_file_path(lock)); | |
| goto out; | |
| } | |
| while (fgets(buf, sizeof(buf), config_file)) { | |
| int i; | |
| int length; | |
| char *output = buf; | |
| for (i = 0; buf[i] && isspace(buf[i]); i++) | |
| ; /* do nothing */ | |
| if (buf[i] == '[') { | |
| /* it's a section */ | |
| int offset = section_name_match(&buf[i], old_name); | |
| if (offset > 0) { | |
| ret++; | |
| if (new_name == NULL) { | |
| remove = 1; | |
| continue; | |
| } | |
| store.baselen = strlen(new_name); | |
| if (!store_write_section(out_fd, new_name)) { | |
| ret = write_error(get_lock_file_path(lock)); | |
| goto out; | |
| } | |
| /* | |
| * We wrote out the new section, with | |
| * a newline, now skip the old | |
| * section's length | |
| */ | |
| output += offset + i; | |
| if (strlen(output) > 0) { | |
| /* | |
| * More content means there's | |
| * a declaration to put on the | |
| * next line; indent with a | |
| * tab | |
| */ | |
| output -= 1; | |
| output[0] = '\t'; | |
| } | |
| } | |
| remove = 0; | |
| } | |
| if (remove) | |
| continue; | |
| length = strlen(output); | |
| if (write_in_full(out_fd, output, length) != length) { | |
| ret = write_error(get_lock_file_path(lock)); | |
| goto out; | |
| } | |
| } | |
| fclose(config_file); | |
| config_file = NULL; | |
| commit_and_out: | |
| if (commit_lock_file(lock) < 0) | |
| ret = error_errno("could not write config file %s", | |
| config_filename); | |
| out: | |
| if (config_file) | |
| fclose(config_file); | |
| rollback_lock_file(lock); | |
| out_no_rollback: | |
| free(filename_buf); | |
| return ret; | |
| } | |
| int git_config_rename_section(const char *old_name, const char *new_name) | |
| { | |
| return git_config_rename_section_in_file(NULL, old_name, new_name); | |
| } | |
| /* | |
| * Call this to report error for your variable that should not | |
| * get a boolean value (i.e. "[my] var" means "true"). | |
| */ | |
| #undef config_error_nonbool | |
| int config_error_nonbool(const char *var) | |
| { | |
| return error("missing value for '%s'", var); | |
| } | |
| int parse_config_key(const char *var, | |
| const char *section, | |
| const char **subsection, int *subsection_len, | |
| const char **key) | |
| { | |
| const char *dot; | |
| /* Does it start with "section." ? */ | |
| if (!skip_prefix(var, section, &var) || *var != '.') | |
| return -1; | |
| /* | |
| * Find the key; we don't know yet if we have a subsection, but we must | |
| * parse backwards from the end, since the subsection may have dots in | |
| * it, too. | |
| */ | |
| dot = strrchr(var, '.'); | |
| *key = dot + 1; | |
| /* Did we have a subsection at all? */ | |
| if (dot == var) { | |
| if (subsection) { | |
| *subsection = NULL; | |
| *subsection_len = 0; | |
| } | |
| } | |
| else { | |
| if (!subsection) | |
| return -1; | |
| *subsection = var + 1; | |
| *subsection_len = dot - *subsection; | |
| } | |
| return 0; | |
| } | |
| const char *current_config_origin_type(void) | |
| { | |
| int type; | |
| if (current_config_kvi) | |
| type = current_config_kvi->origin_type; | |
| else if(cf) | |
| type = cf->origin_type; | |
| else | |
| die("BUG: current_config_origin_type called outside config callback"); | |
| switch (type) { | |
| case CONFIG_ORIGIN_BLOB: | |
| return "blob"; | |
| case CONFIG_ORIGIN_FILE: | |
| return "file"; | |
| case CONFIG_ORIGIN_STDIN: | |
| return "standard input"; | |
| case CONFIG_ORIGIN_SUBMODULE_BLOB: | |
| return "submodule-blob"; | |
| case CONFIG_ORIGIN_CMDLINE: | |
| return "command line"; | |
| default: | |
| die("BUG: unknown config origin type"); | |
| } | |
| } | |
| const char *current_config_name(void) | |
| { | |
| const char *name; | |
| if (current_config_kvi) | |
| name = current_config_kvi->filename; | |
| else if (cf) | |
| name = cf->name; | |
| else | |
| die("BUG: current_config_name called outside config callback"); | |
| return name ? name : ""; | |
| } | |
| enum config_scope current_config_scope(void) | |
| { | |
| if (current_config_kvi) | |
| return current_config_kvi->scope; | |
| else | |
| return current_parsing_scope; | |
| } |
