diff options
Diffstat (limited to 'config.c')
| -rw-r--r-- | config.c | 1017 |
1 files changed, 743 insertions, 274 deletions
@@ -6,6 +6,8 @@ * */ #include "cache.h" +#include "config.h" +#include "repository.h" #include "lockfile.h" #include "exec_cmd.h" #include "strbuf.h" @@ -13,6 +15,7 @@ #include "hashmap.h" #include "string-list.h" #include "utf8.h" +#include "dir.h" struct config_source { struct config_source *prev; @@ -66,15 +69,10 @@ static struct key_value_info *current_config_kvi; */ static enum config_scope current_parsing_scope; +static int core_compression_seen; +static int pack_compression_seen; static int zlib_compression_seen; -/* - * Default config_set that contains key-value pairs from the usual set of config - * config files (i.e repo specific .git/config, user wide ~/.gitconfig, XDG - * config file and the global /etc/gitconfig) - */ -static struct config_set the_config_set; - static int config_file_fgetc(struct config_source *conf) { return getc_unlocked(conf->u.file); @@ -132,7 +130,7 @@ static int handle_path_include(const char *path, struct config_include_data *inc if (!path) return config_error_nonbool("include.path"); - expanded = expand_user_path(path); + expanded = expand_user_path(path, 0); if (!expanded) return error("could not expand include path '%s'", path); path = expanded; @@ -168,9 +166,118 @@ static int handle_path_include(const char *path, struct config_include_data *inc 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; /* @@ -183,6 +290,12 @@ int git_config_include(const char *var, const char *value, void *data) 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; } @@ -199,11 +312,104 @@ void git_config_push_parameter(const char *text) 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]) @@ -221,13 +427,15 @@ int git_config_parse_parameter(const char *text, strbuf_list_free(pair); return error("bogus config parameter: %s", text); } - strbuf_tolower(pair[0]); - if (fn(pair[0]->buf, value, data) < 0) { - strbuf_list_free(pair); - return -1; + + 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 0; + return ret; } int git_config_from_parameters(config_fn_t fn, void *data) @@ -354,11 +562,6 @@ static char *parse_value(void) } } -static inline int iskeychar(int c) -{ - return isalnum(c) || c == '-'; -} - static int get_value(config_fn_t fn, void *data, struct strbuf *name) { int c; @@ -393,7 +596,8 @@ static int get_value(config_fn_t fn, void *data, struct strbuf *name) */ cf->linenr--; ret = fn(name->buf, value, data); - cf->linenr++; + if (ret >= 0) + cf->linenr++; return ret; } @@ -649,6 +853,15 @@ int git_parse_ulong(const char *value, unsigned long *ret) 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) { @@ -707,7 +920,15 @@ unsigned long git_config_ulong(const char *name, const char *value) return ret; } -int git_parse_maybe_bool(const char *value) +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; +} + +static int git_parse_maybe_bool_text(const char *value) { if (!value) return 1; @@ -724,9 +945,9 @@ int git_parse_maybe_bool(const char *value) return -1; } -int git_config_maybe_bool(const char *name, const char *value) +int git_parse_maybe_bool(const char *value) { - int v = git_parse_maybe_bool(value); + int v = git_parse_maybe_bool_text(value); if (0 <= v) return v; if (git_parse_int(value, &v)) @@ -736,7 +957,7 @@ int git_config_maybe_bool(const char *name, const char *value) int git_config_bool_or_int(const char *name, const char *value, int *is_bool) { - int v = git_parse_maybe_bool(value); + int v = git_parse_maybe_bool_text(value); if (0 <= v) { *is_bool = 1; return v; @@ -763,12 +984,22 @@ 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); + *dest = expand_user_path(value, 0); if (!*dest) die(_("failed to expand user dir in: '%s'"), value); return 0; } +int git_config_expiry_date(timestamp_t *timestamp, const char *var, const char *value) +{ + if (!value) + return config_error_nonbool(var); + if (parse_expiry_date(value, timestamp)) + return error(_("'%s' for '%s' is not a valid timestamp"), + value, var); + return 0; +} + static int git_default_core_config(const char *var, const char *value) { /* This needs a better name */ @@ -824,7 +1055,12 @@ static int git_default_core_config(const char *var, const char *value) } if (!strcmp(var, "core.logallrefupdates")) { - log_all_ref_updates = git_config_bool(var, value); + 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; } @@ -834,13 +1070,22 @@ static int git_default_core_config(const char *var, const char *value) } if (!strcmp(var, "core.abbrev")) { - int abbrev = git_config_int(var, value); - if (abbrev < minimum_abbrev || abbrev > 40) - return -1; - default_abbrev = 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) @@ -862,6 +1107,8 @@ static int git_default_core_config(const char *var, const char *value) core_compression_seen = 1; if (!zlib_compression_seen) zlib_compression_level = level; + if (!pack_compression_seen) + pack_compression_level = level; return 0; } @@ -902,11 +1149,14 @@ static int git_default_core_config(const char *var, const char *value) } if (!strcmp(var, "core.safecrlf")) { + int eol_rndtrp_die; if (value && !strcasecmp(value, "warn")) { - safe_crlf = SAFE_CRLF_WARN; + global_conv_flags_eol = CONV_EOL_RNDTRP_WARN; return 0; } - safe_crlf = git_config_bool(var, value); + eol_rndtrp_die = git_config_bool(var, value); + global_conv_flags_eol = eol_rndtrp_die ? + CONV_EOL_RNDTRP_DIE : CONV_EOL_RNDTRP_WARN; return 0; } @@ -927,9 +1177,6 @@ static int git_default_core_config(const char *var, const char *value) return 0; } - if (!strcmp(var, "core.pager")) - return git_config_string(&pager_program, var, value); - if (!strcmp(var, "core.editor")) return git_config_string(&editor_program, var, value); @@ -1007,6 +1254,11 @@ static int git_default_core_config(const char *var, const char *value) return 0; } + if (!strcmp(var, "core.partialclonefilter")) { + return git_config_string(&core_partial_clone_filter_default, + var, value); + } + /* Add other config variables here and to Documentation/config.txt. */ return 0; } @@ -1125,6 +1377,18 @@ int git_default_config(const char *var, const char *value, void *dummy) 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; } @@ -1185,7 +1449,7 @@ int git_config_from_file(config_fn_t fn, const char *filename, void *data) int ret = -1; FILE *f; - f = fopen(filename, "r"); + f = fopen_or_warn(filename, "r"); if (f) { flockfile(f); ret = do_config_from_file(fn, CONFIG_ORIGIN_FILE, filename, filename, f, data); @@ -1214,17 +1478,17 @@ int git_config_from_mem(config_fn_t fn, const enum config_origin_type origin_typ return do_config_from(&top, fn, data); } -static int git_config_from_blob_sha1(config_fn_t fn, - const char *name, - const unsigned char *sha1, - void *data) +int git_config_from_blob_oid(config_fn_t fn, + const char *name, + const struct object_id *oid, + void *data) { enum object_type type; char *buf; unsigned long size; int ret; - buf = read_sha1_file(sha1, &type, &size); + buf = read_sha1_file(oid->hash, &type, &size); if (!buf) return error("unable to load config blob object '%s'", name); if (type != OBJ_BLOB) { @@ -1242,11 +1506,11 @@ static int git_config_from_blob_ref(config_fn_t fn, const char *name, void *data) { - unsigned char sha1[20]; + struct object_id oid; - if (get_sha1(name, sha1) < 0) + if (get_oid(name, &oid) < 0) return error("unable to resolve config blob '%s'", name); - return git_config_from_blob_sha1(fn, name, sha1, data); + return git_config_from_blob_oid(fn, name, &oid, data); } const char *git_etc_gitconfig(void) @@ -1284,12 +1548,18 @@ int git_config_system(void) return !git_env_bool("GIT_CONFIG_NOSYSTEM", 0); } -static int do_git_config_sequence(config_fn_t fn, void *data) +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"); - char *repo_config = git_pathdup("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)) @@ -1318,15 +1588,16 @@ static int do_git_config_sequence(config_fn_t fn, void *data) return ret; } -int git_config_with_options(config_fn_t fn, void *data, - struct git_config_source *config_source, - int respect_includes) +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 (respect_includes) { + if (opts->respect_includes) { inc.fn = fn; inc.data = data; + inc.opts = opts; fn = git_config_include; data = &inc; } @@ -1342,24 +1613,7 @@ int git_config_with_options(config_fn_t fn, void *data, else if (config_source && config_source->blob) return git_config_from_blob_ref(fn, config_source->blob, data); - return do_git_config_sequence(fn, data); -} - -static void git_config_raw(config_fn_t fn, void *data) -{ - if (git_config_with_options(fn, data, NULL, 1) < 0) - /* - * git_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")); + return do_git_config_sequence(opts, fn, data); } static void configset_iter(struct config_set *cs, config_fn_t fn, void *data) @@ -1385,12 +1639,34 @@ static void configset_iter(struct config_set *cs, config_fn_t fn, void *data) } } -static void git_config_check_init(void); - -void git_config(config_fn_t fn, void *data) +void read_early_config(config_fn_t cb, void *data) { - git_config_check_init(); - configset_iter(&the_config_set, fn, 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) @@ -1456,15 +1732,20 @@ static int configset_add_value(struct config_set *cs, const char *key, const cha return 0; } -static int config_set_element_cmp(const struct config_set_element *e1, - const struct config_set_element *e2, const void *unused) +static int config_set_element_cmp(const void *unused_cmp_data, + const void *entry, + const void *entry_or_key, + const void *unused_keydata) { + const struct config_set_element *e1 = entry; + const struct config_set_element *e2 = entry_or_key; + 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, 0); + hashmap_init(&cs->config_hash, config_set_element_cmp, NULL, 0); cs->hash_initialized = 1; cs->list.nr = 0; cs->list.alloc = 0; @@ -1585,7 +1866,7 @@ int git_configset_get_maybe_bool(struct config_set *cs, const char *key, int *de { const char *value; if (!git_configset_get_value(cs, key, &value)) { - *dest = git_config_maybe_bool(key, value); + *dest = git_parse_maybe_bool(value); if (*dest == -1) return -1; return 0; @@ -1602,89 +1883,248 @@ int git_configset_get_pathname(struct config_set *cs, const char *key, const cha return 1; } -static void git_config_check_init(void) +/* Functions use to read configuration from a repository */ +static void repo_read_config(struct repository *repo) { - if (the_config_set.hash_initialized) + 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; - git_configset_init(&the_config_set); - git_config_raw(config_set_callback, &the_config_set); + repo_read_config(repo); } -void git_config_clear(void) +static void repo_config_clear(struct repository *repo) { - if (!the_config_set.hash_initialized) + if (!repo->config || !repo->config->hash_initialized) return; - git_configset_clear(&the_config_set); + git_configset_clear(repo->config); } -int git_config_get_value(const char *key, const char **value) +void repo_config(struct repository *repo, config_fn_t fn, void *data) { - git_config_check_init(); - return git_configset_get_value(&the_config_set, key, value); + git_config_check_init(repo); + configset_iter(repo->config, fn, data); } -const struct string_list *git_config_get_value_multi(const char *key) +int repo_config_get_value(struct repository *repo, + const char *key, const char **value) { - git_config_check_init(); - return git_configset_get_value_multi(&the_config_set, key); + git_config_check_init(repo); + return git_configset_get_value(repo->config, key, value); } -int git_config_get_string_const(const char *key, const char **dest) +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(); - ret = git_configset_get_string_const(&the_config_set, key, dest); + 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) { - git_config_check_init(); - return git_config_get_string_const(key, (const char **)dest); + return repo_config_get_string(the_repository, key, dest); } int git_config_get_int(const char *key, int *dest) { - git_config_check_init(); - return git_configset_get_int(&the_config_set, key, dest); + return repo_config_get_int(the_repository, key, dest); } int git_config_get_ulong(const char *key, unsigned long *dest) { - git_config_check_init(); - return git_configset_get_ulong(&the_config_set, key, dest); + return repo_config_get_ulong(the_repository, key, dest); } int git_config_get_bool(const char *key, int *dest) { - git_config_check_init(); - return git_configset_get_bool(&the_config_set, key, 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) { - git_config_check_init(); - return git_configset_get_bool_or_int(&the_config_set, key, is_bool, 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) { - git_config_check_init(); - return git_configset_get_maybe_bool(&the_config_set, key, dest); + return repo_config_get_maybe_bool(the_repository, key, dest); } int git_config_get_pathname(const char *key, const char **dest) { - int ret; - git_config_check_init(); - ret = git_configset_get_pathname(&the_config_set, key, dest); - if (ret < 0) - git_die_config(key, NULL); + return repo_config_get_pathname(the_repository, key, dest); +} + +/* + * Note: This function exists solely to maintain backward compatibility with + * 'fetch' and 'update_clone' storing configuration in '.gitmodules' and should + * NOT be used anywhere else. + * + * Runs the provided config function on the '.gitmodules' file found in the + * working directory. + */ +void config_from_gitmodules(config_fn_t fn, void *data) +{ + if (the_repository->worktree) { + char *file = repo_worktree_path(the_repository, GITMODULES_FILE); + git_config_from_file(fn, file, data); + free(file); + } +} + +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_expiry_in_days(const char *key, timestamp_t *expiry, timestamp_t now) +{ + char *expiry_string; + intmax_t days; + timestamp_t when; + + if (git_config_get_string(key, &expiry_string)) + return 1; /* no such thing */ + + if (git_parse_signed(expiry_string, &days, maximum_signed_value_of_type(int))) { + const int scale = 86400; + *expiry = now - days * scale; + return 0; + } + + if (!parse_expiry_date(expiry_string, &when)) { + *expiry = when; + return 0; + } + return -1; /* thing exists but cannot be parsed */ +} + int git_config_get_untracked_cache(void) { int val = -1; @@ -1701,14 +2141,53 @@ int git_config_get_untracked_cache(void) if (!strcasecmp(v, "keep")) return -1; - error("unknown core.untrackedCache value '%s'; " - "using 'keep' default value", v); + 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 */ +} + +int git_config_get_fsmonitor(void) +{ + if (git_config_get_pathname("core.fsmonitor", &core_fsmonitor)) + core_fsmonitor = getenv("GIT_FSMONITOR_TEST"); + + if (core_fsmonitor && !*core_fsmonitor) + core_fsmonitor = NULL; + + if (core_fsmonitor) + return 1; + + return 0; +} + NORETURN void git_die_config_linenr(const char *key, const char *filename, int linenr) { @@ -1749,7 +2228,7 @@ static struct { size_t *offset; unsigned int offset_alloc; enum { START, SECTION_SEEN, SECTION_END_SEEN, KEY_SEEN } state; - int seen; + unsigned int seen; } store; static int matches(const char *key, const char *value) @@ -1841,10 +2320,10 @@ static int write_error(const char *filename) return 4; } -static int store_write_section(int fd, const char *key) +static struct strbuf store_create_section(const char *key) { const char *dot; - int i, success; + int i; struct strbuf sb = STRBUF_INIT; dot = memchr(key, '.', store.baselen); @@ -1860,15 +2339,24 @@ static int store_write_section(int fd, const char *key) strbuf_addf(&sb, "[%.*s]\n", store.baselen, key); } - success = write_in_full(fd, sb.buf, sb.len) == sb.len; + return sb; +} + +static ssize_t write_section(int fd, const char *key) +{ + struct strbuf sb = store_create_section(key); + ssize_t ret; + + ret = write_in_full(fd, sb.buf, sb.len); strbuf_release(&sb); - return success; + return ret; } -static int store_write_pair(int fd, const char *key, const char *value) +static ssize_t write_pair(int fd, const char *key, const char *value) { - int i, success; + int i; + ssize_t ret; int length = strlen(key + store.baselen + 1); const char *quote = ""; struct strbuf sb = STRBUF_INIT; @@ -1902,16 +2390,17 @@ static int store_write_pair(int fd, const char *key, const char *value) case '"': case '\\': strbuf_addch(&sb, '\\'); + /* fallthrough */ default: strbuf_addch(&sb, value[i]); break; } strbuf_addf(&sb, "%s\n", quote); - success = write_in_full(fd, sb.buf, sb.len) == sb.len; + ret = write_in_full(fd, sb.buf, sb.len); strbuf_release(&sb); - return success; + return ret; } static ssize_t find_beginning_of_line(const char *contents, size_t size, @@ -1963,93 +2452,6 @@ void git_config_set(const char *key, const char *value) } /* - * 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(*store_key); - *store_key = NULL; - } - 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); -} - -/* * 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 @@ -2081,7 +2483,7 @@ int git_config_set_multivar_in_file_gently(const char *config_filename, { int fd = -1, in_fd = -1; int ret; - struct lock_file *lock = NULL; + struct lock_file lock = LOCK_INIT; char *filename_buf = NULL; char *contents = NULL; size_t contents_sz; @@ -2100,8 +2502,7 @@ int git_config_set_multivar_in_file_gently(const char *config_filename, * 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); + 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); @@ -2128,8 +2529,8 @@ int git_config_set_multivar_in_file_gently(const char *config_filename, } store.key = (char *)key; - if (!store_write_section(fd, key) || - !store_write_pair(fd, key, value)) + if (write_section(fd, key) < 0 || + write_pair(fd, key, value) < 0) goto write_err_out; } else { struct stat st; @@ -2194,7 +2595,12 @@ int git_config_set_multivar_in_file_gently(const char *config_filename, goto out_free; } - fstat(in_fd, &st); + 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); @@ -2209,8 +2615,8 @@ int git_config_set_multivar_in_file_gently(const char *config_filename, 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)); + 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; } @@ -2234,11 +2640,10 @@ int git_config_set_multivar_in_file_gently(const char *config_filename, /* 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) + copy_end - copy_begin) < 0) goto write_err_out; if (new_line && - write_str_in_full(fd, "\n") != 1) + write_str_in_full(fd, "\n") < 0) goto write_err_out; } copy_begin = store.offset[i]; @@ -2247,46 +2652,36 @@ int git_config_set_multivar_in_file_gently(const char *config_filename, /* write the pair (value == NULL means unset) */ if (value != NULL) { if (store.state == START) { - if (!store_write_section(fd, key)) + if (write_section(fd, key) < 0) goto write_err_out; } - if (!store_write_pair(fd, key, value)) + if (write_pair(fd, key, value) < 0) 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) + contents_sz - copy_begin) < 0) goto write_err_out; munmap(contents, contents_sz); contents = NULL; } - if (commit_lock_file(lock) < 0) { + 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); + rollback_lock_file(&lock); free(filename_buf); if (contents) munmap(contents, contents_sz); @@ -2295,7 +2690,7 @@ out_free: return ret; write_err_out: - ret = write_error(get_lock_file_path(lock)); + ret = write_error(get_lock_file_path(&lock)); goto out_free; } @@ -2383,54 +2778,78 @@ static int section_name_is_ok(const char *name) } /* 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) +static int git_config_copy_or_rename_section_in_file(const char *config_filename, + const char *old_name, const char *new_name, int copy) { int ret = 0, remove = 0; char *filename_buf = NULL; - struct lock_file *lock; + struct lock_file lock = LOCK_INIT; int out_fd; char buf[1024]; - FILE *config_file; + FILE *config_file = NULL; struct stat st; + struct strbuf copystr = STRBUF_INIT; if (new_name && !section_name_is_ok(new_name)) { ret = error("invalid section name: %s", new_name); - goto out; + 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); + 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 unlock_and_out; + goto commit_and_out; } - fstat(fileno(config_file), &st); + 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) { + if (chmod(get_lock_file_path(&lock), st.st_mode & 07777) < 0) { ret = error_errno("chmod on %s failed", - get_lock_file_path(lock)); + get_lock_file_path(&lock)); goto out; } while (fgets(buf, sizeof(buf), config_file)) { int i; int length; + int is_section = 0; 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); + int offset; + is_section = 1; + + /* + * When encountering a new section under -c we + * need to flush out any section we're already + * coping and begin anew. There might be + * multiple [branch "$name"] sections. + */ + if (copystr.len > 0) { + if (write_in_full(out_fd, copystr.buf, copystr.len) < 0) { + ret = write_error(get_lock_file_path(&lock)); + goto out; + } + strbuf_reset(©str); + } + + offset = section_name_match(&buf[i], old_name); if (offset > 0) { ret++; if (new_name == NULL) { @@ -2438,25 +2857,29 @@ int git_config_rename_section_in_file(const char *config_filename, 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) { + if (!copy) { + if (write_section(out_fd, new_name) < 0) { + ret = write_error(get_lock_file_path(&lock)); + goto out; + } /* - * More content means there's - * a declaration to put on the - * next line; indent with a - * tab + * We wrote out the new section, with + * a newline, now skip the old + * section's length */ - output -= 1; - output[0] = '\t'; + 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'; + } + } else { + copystr = store_create_section(new_name); } } remove = 0; @@ -2464,26 +2887,69 @@ int git_config_rename_section_in_file(const char *config_filename, if (remove) continue; length = strlen(output); - if (write_in_full(out_fd, output, length) != length) { - ret = write_error(get_lock_file_path(lock)); + + if (!is_section && copystr.len > 0) { + strbuf_add(©str, output, length); + } + + if (write_in_full(out_fd, output, length) < 0) { + ret = write_error(get_lock_file_path(&lock)); goto out; } } + + /* + * Copy a trailing section at the end of the config, won't be + * flushed by the usual "flush because we have a new section + * logic in the loop above. + */ + if (copystr.len > 0) { + if (write_in_full(out_fd, copystr.buf, copystr.len) < 0) { + ret = write_error(get_lock_file_path(&lock)); + goto out; + } + strbuf_reset(©str); + } + fclose(config_file); -unlock_and_out: - if (commit_lock_file(lock) < 0) + 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_in_file(const char *config_filename, + const char *old_name, const char *new_name) +{ + return git_config_copy_or_rename_section_in_file(config_filename, + old_name, new_name, 0); +} + 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); } +int git_config_copy_section_in_file(const char *config_filename, + const char *old_name, const char *new_name) +{ + return git_config_copy_or_rename_section_in_file(config_filename, + old_name, new_name, 1); +} + +int git_config_copy_section(const char *old_name, const char *new_name) +{ + return git_config_copy_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"). @@ -2499,11 +2965,10 @@ int parse_config_key(const char *var, const char **subsection, int *subsection_len, const char **key) { - int section_len = strlen(section); const char *dot; /* Does it start with "section." ? */ - if (!starts_with(var, section) || var[section_len] != '.') + if (!skip_prefix(var, section, &var) || *var != '.') return -1; /* @@ -2515,12 +2980,16 @@ int parse_config_key(const char *var, *key = dot + 1; /* Did we have a subsection at all? */ - if (dot == var + section_len) { - *subsection = NULL; - *subsection_len = 0; + if (dot == var) { + if (subsection) { + *subsection = NULL; + *subsection_len = 0; + } } else { - *subsection = var + section_len + 1; + if (!subsection) + return -1; + *subsection = var + 1; *subsection_len = dot - *subsection; } |