diff options
Diffstat (limited to 'config.c')
| -rw-r--r-- | config.c | 449 |
1 files changed, 370 insertions, 79 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; @@ -70,13 +73,6 @@ 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); @@ -134,7 +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; @@ -170,9 +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, NULL); + + 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; /* @@ -185,6 +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; } @@ -277,8 +388,7 @@ static int git_config_parse_key_1(const char *key, char **store_key, int *basele out_free_ret_1: if (store_key) { - free(*store_key); - *store_key = NULL; + FREE_AND_NULL(*store_key); } return -CONFIG_INVALID_KEY; } @@ -486,7 +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; } @@ -742,6 +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) { @@ -800,6 +920,14 @@ unsigned long git_config_ulong(const char *name, const char *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) @@ -856,7 +984,7 @@ 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; @@ -1303,7 +1431,7 @@ 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); @@ -1402,12 +1530,18 @@ 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 = have_git_dir() ? git_pathdup("config") : NULL; + 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)) @@ -1436,15 +1570,16 @@ 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; } @@ -1460,24 +1595,7 @@ 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) @@ -1503,12 +1621,34 @@ 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) @@ -1720,86 +1860,206 @@ 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(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(); - ret = git_configset_get_string_const(&the_config_set, key, dest); + 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); +} + +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; } @@ -1819,14 +2079,39 @@ 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 */ +} + NORETURN void git_die_config_linenr(const char *key, const char *filename, int linenr) { @@ -2427,7 +2712,7 @@ int git_config_rename_section_in_file(const char *config_filename, struct lock_file *lock; int out_fd; char buf[1024]; - FILE *config_file; + FILE *config_file = NULL; struct stat st; if (new_name && !section_name_is_ok(new_name)) { @@ -2446,6 +2731,9 @@ int git_config_rename_section_in_file(const char *config_filename, } 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; } @@ -2509,11 +2797,14 @@ int git_config_rename_section_in_file(const char *config_filename, } } 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); |