diff options
Diffstat (limited to 'config.c')
-rw-r--r-- | config.c | 674 |
1 files changed, 450 insertions, 224 deletions
@@ -6,16 +6,19 @@ * */ #include "cache.h" +#include "branch.h" #include "config.h" #include "repository.h" #include "lockfile.h" -#include "exec_cmd.h" +#include "exec-cmd.h" #include "strbuf.h" #include "quote.h" #include "hashmap.h" #include "string-list.h" +#include "object-store.h" #include "utf8.h" #include "dir.h" +#include "color.h" struct config_source { struct config_source *prev; @@ -30,11 +33,12 @@ struct config_source { enum config_origin_type origin_type; const char *name; const char *path; - int die_on_error; + enum config_error_action default_error_action; int linenr; int eof; struct strbuf value; struct strbuf var; + unsigned subsection_case_sensitive : 1; int (*do_fgetc)(struct config_source *c); int (*do_ungetc)(int c, struct config_source *conf); @@ -102,7 +106,7 @@ 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"); + BUG("config_buf can only ungetc the same character"); return c; } @@ -115,12 +119,12 @@ static long config_buf_ftell(struct config_source *conf) } #define MAX_INCLUDE_DEPTH 10 -static const char include_depth_advice[] = +static const char include_depth_advice[] = N_( "exceeded maximum include depth (%d) while including\n" " %s\n" "from\n" " %s\n" -"Do you have circular includes?"; +"This might be due to circular includes."); static int handle_path_include(const char *path, struct config_include_data *inc) { int ret = 0; @@ -132,7 +136,7 @@ static int handle_path_include(const char *path, struct config_include_data *inc expanded = expand_user_path(path, 0); if (!expanded) - return error("could not expand include path '%s'", path); + return error(_("could not expand include path '%s'"), path); path = expanded; /* @@ -143,7 +147,7 @@ static int handle_path_include(const char *path, struct config_include_data *inc char *slash; if (!cf || !cf->path) - return error("relative config includes must come from files"); + return error(_("relative config includes must come from files")); slash = find_last_dir_sep(cf->path); if (slash) @@ -154,7 +158,7 @@ static int handle_path_include(const char *path, struct config_include_data *inc if (!access_or_die(path, R_OK, 0)) { if (++inc->depth > MAX_INCLUDE_DEPTH) - die(include_depth_advice, MAX_INCLUDE_DEPTH, path, + die(_(include_depth_advice), MAX_INCLUDE_DEPTH, path, !cf ? "<unknown>" : cf->name ? cf->name : "the command line"); @@ -189,7 +193,7 @@ static int prepare_include_condition_pattern(struct strbuf *pat) strbuf_realpath(&path, cf->path, 1); slash = find_last_dir_sep(path.buf); if (!slash) - die("BUG: how is this possible?"); + 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)) @@ -341,13 +345,13 @@ static int git_config_parse_key_1(const char *key, char **store_key, int *basele if (last_dot == NULL || last_dot == key) { if (!quiet) - error("key does not contain a section: %s", key); + 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); + error(_("key does not contain variable name: %s"), key); return -CONFIG_NO_SECTION_OR_NAME; } @@ -371,13 +375,13 @@ static int git_config_parse_key_1(const char *key, char **store_key, int *basele if (!iskeychar(c) || (i == baselen + 1 && !isalpha(c))) { if (!quiet) - error("invalid key: %s", key); + 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); + error(_("invalid key (newline): %s"), key); goto out_free_ret_1; } if (store_key) @@ -413,7 +417,7 @@ int git_config_parse_parameter(const char *text, pair = strbuf_split_str(text, '=', 2); if (!pair[0]) - return error("bogus config parameter: %s", text); + 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); @@ -425,7 +429,7 @@ int git_config_parse_parameter(const char *text, strbuf_trim(pair[0]); if (!pair[0]->len) { strbuf_list_free(pair); - return error("bogus config parameter: %s", text); + return error(_("bogus config parameter: %s"), text); } if (git_config_parse_key(pair[0]->buf, &canonical_name, NULL)) { @@ -460,7 +464,7 @@ int git_config_from_parameters(config_fn_t fn, void *data) envw = xstrdup(env); if (sq_dequote_to_argv(envw, &argv, &nr, &alloc) < 0) { - ret = error("bogus format in " CONFIG_DATA_ENVIRONMENT); + ret = error(_("bogus format in %s"), CONFIG_DATA_ENVIRONMENT); goto out; } @@ -603,6 +607,7 @@ static int get_value(config_fn_t fn, void *data, struct strbuf *name) static int get_extended_base_var(struct strbuf *name, int c) { + cf->subsection_case_sensitive = 0; do { if (c == '\n') goto error_incomplete_line; @@ -639,6 +644,7 @@ error_incomplete_line: static int get_base_var(struct strbuf *name) { + cf->subsection_case_sensitive = 1; for (;;) { int c = get_next_char(); if (cf->eof) @@ -653,7 +659,45 @@ static int get_base_var(struct strbuf *name) } } -static int git_parse_source(config_fn_t fn, void *data) +struct parse_event_data { + enum config_event_t previous_type; + size_t previous_offset; + const struct config_options *opts; +}; + +static int do_event(enum config_event_t type, struct parse_event_data *data) +{ + size_t offset; + + if (!data->opts || !data->opts->event_fn) + return 0; + + if (type == CONFIG_EVENT_WHITESPACE && + data->previous_type == type) + return 0; + + offset = cf->do_ftell(cf); + /* + * At EOF, the parser always "inserts" an extra '\n', therefore + * the end offset of the event is the current file position, otherwise + * we will already have advanced to the next event. + */ + if (type != CONFIG_EVENT_EOF) + offset--; + + if (data->previous_type != CONFIG_EVENT_EOF && + data->opts->event_fn(data->previous_type, data->previous_offset, + offset, data->opts->event_fn_data) < 0) + return -1; + + data->previous_type = type; + data->previous_offset = offset; + + return 0; +} + +static int git_parse_source(config_fn_t fn, void *data, + const struct config_options *opts) { int comment = 0; int baselen = 0; @@ -664,8 +708,15 @@ static int git_parse_source(config_fn_t fn, void *data) /* U+FEFF Byte Order Mark in UTF8 */ const char *bomptr = utf8_bom; + /* For the parser event callback */ + struct parse_event_data event_data = { + CONFIG_EVENT_EOF, 0, opts + }; + for (;;) { - int c = get_next_char(); + int c; + + 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 @@ -682,18 +733,33 @@ static int git_parse_source(config_fn_t fn, void *data) } } if (c == '\n') { - if (cf->eof) + if (cf->eof) { + if (do_event(CONFIG_EVENT_EOF, &event_data) < 0) + return -1; return 0; + } + if (do_event(CONFIG_EVENT_WHITESPACE, &event_data) < 0) + return -1; comment = 0; continue; } - if (comment || isspace(c)) + if (comment) continue; + if (isspace(c)) { + if (do_event(CONFIG_EVENT_WHITESPACE, &event_data) < 0) + return -1; + continue; + } if (c == '#' || c == ';') { + if (do_event(CONFIG_EVENT_COMMENT, &event_data) < 0) + return -1; comment = 1; continue; } if (c == '[') { + if (do_event(CONFIG_EVENT_SECTION, &event_data) < 0) + return -1; + /* Reset prior to determining a new stem */ strbuf_reset(var); if (get_base_var(var) < 0 || var->len < 1) @@ -704,6 +770,10 @@ static int git_parse_source(config_fn_t fn, void *data) } if (!isalpha(c)) break; + + if (do_event(CONFIG_EVENT_ENTRY, &event_data) < 0) + return -1; + /* * Truncate the var name back to the section header * stem prior to grabbing the suffix part of the name @@ -715,6 +785,9 @@ static int git_parse_source(config_fn_t fn, void *data) break; } + if (do_event(CONFIG_EVENT_ERROR, &event_data) < 0) + return -1; + switch (cf->origin_type) { case CONFIG_ORIGIN_BLOB: error_msg = xstrfmt(_("bad config line %d in blob %s"), @@ -741,10 +814,21 @@ static int git_parse_source(config_fn_t fn, void *data) cf->linenr, cf->name); } - if (cf->die_on_error) + switch (opts && opts->error_action ? + opts->error_action : + cf->default_error_action) { + case CONFIG_ERROR_DIE: die("%s", error_msg); - else + break; + case CONFIG_ERROR_ERROR: error_return = error("%s", error_msg); + break; + case CONFIG_ERROR_SILENT: + error_return = -1; + break; + case CONFIG_ERROR_UNSET: + BUG("config error action unset"); + } free(error_msg); return error_return; @@ -853,7 +937,7 @@ int git_parse_ulong(const char *value, unsigned long *ret) return 1; } -static int git_parse_ssize_t(const char *value, ssize_t *ret) +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))) @@ -1000,6 +1084,15 @@ int git_config_expiry_date(timestamp_t *timestamp, const char *var, const char * return 0; } +int git_config_color(char *dest, const char *var, const char *value) +{ + if (!value) + return config_error_nonbool(var); + if (color_parse(value, dest) < 0) + return -1; + return 0; +} + static int git_default_core_config(const char *var, const char *value) { /* This needs a better name */ @@ -1077,7 +1170,7 @@ static int git_default_core_config(const char *var, const char *value) else { int abbrev = git_config_int(var, value); if (abbrev < minimum_abbrev || abbrev > 40) - return error("abbrev length out of range: %d", abbrev); + return error(_("abbrev length out of range: %d"), abbrev); default_abbrev = abbrev; } return 0; @@ -1156,7 +1249,7 @@ static int git_default_core_config(const char *var, const char *value) } eol_rndtrp_die = git_config_bool(var, value); global_conv_flags_eol = eol_rndtrp_die ? - CONV_EOL_RNDTRP_DIE : CONV_EOL_RNDTRP_WARN; + CONV_EOL_RNDTRP_DIE : 0; return 0; } @@ -1172,6 +1265,11 @@ static int git_default_core_config(const char *var, const char *value) return 0; } + if (!strcmp(var, "core.checkroundtripencoding")) { + check_roundtrip_encoding = xstrdup(value); + return 0; + } + if (!strcmp(var, "core.notesref")) { notes_ref_name = xstrdup(value); return 0; @@ -1189,7 +1287,7 @@ static int git_default_core_config(const char *var, const char *value) comment_line_char = value[0]; auto_comment_line_char = 0; } else - return error("core.commentChar should only be one character"); + return error(_("core.commentChar should only be one character")); return 0; } @@ -1259,6 +1357,11 @@ static int git_default_core_config(const char *var, const char *value) var, value); } + if (!strcmp(var, "core.usereplacerefs")) { + read_replace_refs = git_config_bool(var, value); + return 0; + } + /* Add other config variables here and to Documentation/config.txt. */ return 0; } @@ -1297,7 +1400,7 @@ static int git_default_branch_config(const char *var, const char *value) else if (!strcmp(value, "always")) autorebase = AUTOREBASE_ALWAYS; else - return error("malformed value for %s", var); + return error(_("malformed value for %s"), var); return 0; } @@ -1323,9 +1426,9 @@ static int git_default_push_config(const char *var, const char *value) 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."); + error(_("malformed value for %s: %s"), var, value); + return error(_("must be one of nothing, matching, simple, " + "upstream or current")); } return 0; } @@ -1365,7 +1468,7 @@ int git_default_config(const char *var, const char *value, void *dummy) if (starts_with(var, "mailmap.")) return git_default_mailmap_config(var, value); - if (starts_with(var, "advice.")) + if (starts_with(var, "advice.") || starts_with(var, "color.advice")) return git_default_advice_config(var, value); if (!strcmp(var, "pager.color") || !strcmp(var, "color.pager")) { @@ -1398,7 +1501,8 @@ int git_default_config(const char *var, const char *value, void *dummy) * 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) +static int do_config_from(struct config_source *top, config_fn_t fn, void *data, + const struct config_options *opts) { int ret; @@ -1410,7 +1514,7 @@ static int do_config_from(struct config_source *top, config_fn_t fn, void *data) strbuf_init(&top->var, 1024); cf = top; - ret = git_parse_source(fn, data); + ret = git_parse_source(fn, data, opts); /* pop config-file parsing state stack */ strbuf_release(&top->value); @@ -1423,44 +1527,57 @@ static int do_config_from(struct config_source *top, config_fn_t fn, void *data) 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) + void *data, const struct config_options *opts) { struct config_source top; + int ret; top.u.file = f; top.origin_type = origin_type; top.name = name; top.path = path; - top.die_on_error = 1; + top.default_error_action = CONFIG_ERROR_DIE; 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); + flockfile(f); + ret = do_config_from(&top, fn, data, opts); + funlockfile(f); + return ret; } static int git_config_from_stdin(config_fn_t fn, void *data) { - return do_config_from_file(fn, CONFIG_ORIGIN_STDIN, "", NULL, stdin, data); + return do_config_from_file(fn, CONFIG_ORIGIN_STDIN, "", NULL, stdin, + data, NULL); } -int git_config_from_file(config_fn_t fn, const char *filename, void *data) +int git_config_from_file_with_options(config_fn_t fn, const char *filename, + void *data, + const struct config_options *opts) { 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); + ret = do_config_from_file(fn, CONFIG_ORIGIN_FILE, filename, + filename, f, data, opts); 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) +int git_config_from_file(config_fn_t fn, const char *filename, void *data) +{ + return git_config_from_file_with_options(fn, filename, data, NULL); +} + +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, const struct config_options *opts) { struct config_source top; @@ -1470,12 +1587,12 @@ int git_config_from_mem(config_fn_t fn, const enum config_origin_type origin_typ top.origin_type = origin_type; top.name = name; top.path = NULL; - top.die_on_error = 0; + top.default_error_action = CONFIG_ERROR_ERROR; 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); + return do_config_from(&top, fn, data, opts); } int git_config_from_blob_oid(config_fn_t fn, @@ -1488,15 +1605,16 @@ int git_config_from_blob_oid(config_fn_t fn, unsigned long size; int ret; - buf = read_sha1_file(oid->hash, &type, &size); + buf = read_object_file(oid, &type, &size); if (!buf) - return error("unable to load config blob object '%s'", name); + 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); + return error(_("reference '%s' does not point to a blob"), name); } - ret = git_config_from_mem(fn, CONFIG_ORIGIN_BLOB, name, buf, size, data); + ret = git_config_from_mem(fn, CONFIG_ORIGIN_BLOB, name, buf, size, + data, NULL); free(buf); return ret; @@ -1509,7 +1627,7 @@ static int git_config_from_blob_ref(config_fn_t fn, struct object_id oid; if (get_oid(name, &oid) < 0) - return error("unable to resolve config blob '%s'", name); + return error(_("unable to resolve config blob '%s'"), name); return git_config_from_blob_oid(fn, name, &oid, data); } @@ -1539,7 +1657,7 @@ 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); + die(_("failed to parse %s"), k); return val; } @@ -1715,7 +1833,7 @@ static int configset_add_value(struct config_set *cs, const char *key, const cha l_item->value_index = e->value_list.nr - 1; if (!cf) - die("BUG: configset_add_value has no source"); + BUG("configset_add_value has no source"); if (cf->name) { kv_info->filename = strintern(cf->name); kv_info->linenr = cf->linenr; @@ -2073,23 +2191,6 @@ int git_config_get_pathname(const char *key, const char **dest) 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); @@ -2219,132 +2320,156 @@ void git_die_config(const char *key, const char *err, ...) * Find all the stuff for git_config_set() below. */ -static struct { +struct config_store_data { 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; - unsigned int seen; -} store; + struct { + size_t begin, end; + enum config_event_t type; + int is_keys_section; + } *parsed; + unsigned int parsed_nr, parsed_alloc, *seen, seen_nr, seen_alloc; + unsigned int key_seen:1, section_seen:1, is_keys_section:1; +}; + +static void config_store_data_clear(struct config_store_data *store) +{ + free(store->key); + if (store->value_regex != NULL && + store->value_regex != CONFIG_REGEX_NONE) { + regfree(store->value_regex); + free(store->value_regex); + } + free(store->parsed); + free(store->seen); + memset(store, 0, sizeof(*store)); +} -static int matches(const char *key, const char *value) +static int matches(const char *key, const char *value, + const struct config_store_data *store) { - if (strcmp(key, store.key)) + if (strcmp(key, store->key)) return 0; /* not ours */ - if (!store.value_regex) + if (!store->value_regex) return 1; /* always matches */ - if (store.value_regex == CONFIG_REGEX_NONE) + 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)); + return store->do_not_match ^ + (value && !regexec(store->value_regex, value, 0, NULL, 0)); +} + +static int store_aux_event(enum config_event_t type, + size_t begin, size_t end, void *data) +{ + struct config_store_data *store = data; + + ALLOC_GROW(store->parsed, store->parsed_nr + 1, store->parsed_alloc); + store->parsed[store->parsed_nr].begin = begin; + store->parsed[store->parsed_nr].end = end; + store->parsed[store->parsed_nr].type = type; + + if (type == CONFIG_EVENT_SECTION) { + int (*cmpfn)(const char *, const char *, size_t); + + if (cf->var.len < 2 || cf->var.buf[cf->var.len - 1] != '.') + return error(_("invalid section name '%s'"), cf->var.buf); + + if (cf->subsection_case_sensitive) + cmpfn = strncasecmp; + else + cmpfn = strncmp; + + /* Is this the section we were looking for? */ + store->is_keys_section = + store->parsed[store->parsed_nr].is_keys_section = + cf->var.len - 1 == store->baselen && + !cmpfn(cf->var.buf, store->key, store->baselen); + if (store->is_keys_section) { + store->section_seen = 1; + ALLOC_GROW(store->seen, store->seen_nr + 1, + store->seen_alloc); + store->seen[store->seen_nr] = store->parsed_nr; + } + } + + store->parsed_nr++; + + return 0; } static int store_aux(const char *key, const char *value, void *cb) { - const char *ep; - size_t section_len; + struct config_store_data *store = cb; - switch (store.state) { - case KEY_SEEN: - if (matches(key, value)) { - if (store.seen == 1 && store.multi_replace == 0) { + if (store->key_seen) { + if (matches(key, value, store)) { + if (store->seen_nr == 1 && store->multi_replace == 0) { warning(_("%s has multiple values"), key); } - ALLOC_GROW(store.offset, store.seen + 1, - store.offset_alloc); + ALLOC_GROW(store->seen, store->seen_nr + 1, + store->seen_alloc); - store.offset[store.seen] = cf->do_ftell(cf); - store.seen++; + store->seen[store->seen_nr] = store->parsed_nr; + store->seen_nr++; } - break; - case SECTION_SEEN: + } else if (store->is_keys_section) { /* - * 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. + * Do not increment matches yet: this may not be a match, but we + * are in the desired section. */ - ep = strrchr(key, '.'); - section_len = ep - key; + ALLOC_GROW(store->seen, store->seen_nr + 1, store->seen_alloc); + store->seen[store->seen_nr] = store->parsed_nr; + store->section_seen = 1; - 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); - } + if (matches(key, value, store)) { + store->seen_nr++; + store->key_seen = 1; } } + return 0; } static int write_error(const char *filename) { - error("failed to write new configuration file %s", filename); + error(_("failed to write new configuration file %s"), filename); /* Same error code as "failed to rename". */ return 4; } -static struct strbuf store_create_section(const char *key) +static struct strbuf store_create_section(const char *key, + const struct config_store_data *store) { const char *dot; int i; struct strbuf sb = STRBUF_INIT; - dot = memchr(key, '.', store.baselen); + dot = memchr(key, '.', store->baselen); if (dot) { strbuf_addf(&sb, "[%.*s \"", (int)(dot - key), key); - for (i = dot - key + 1; i < store.baselen; i++) { + 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); + strbuf_addf(&sb, "[%.*s]\n", store->baselen, key); } return sb; } -static ssize_t write_section(int fd, const char *key) +static ssize_t write_section(int fd, const char *key, + const struct config_store_data *store) { - struct strbuf sb = store_create_section(key); + struct strbuf sb = store_create_section(key, store); ssize_t ret; ret = write_in_full(fd, sb.buf, sb.len); @@ -2353,11 +2478,12 @@ static ssize_t write_section(int fd, const char *key) return ret; } -static ssize_t write_pair(int fd, const char *key, const char *value) +static ssize_t write_pair(int fd, const char *key, const char *value, + const struct config_store_data *store) { int i; ssize_t ret; - int length = strlen(key + store.baselen + 1); + int length = strlen(key + store->baselen + 1); const char *quote = ""; struct strbuf sb = STRBUF_INIT; @@ -2377,7 +2503,7 @@ static ssize_t write_pair(int fd, const char *key, const char *value) quote = "\""; strbuf_addf(&sb, "\t%.*s = %s", - length, key + store.baselen + 1, quote); + length, key + store->baselen + 1, quote); for (i = 0; value[i]; i++) switch (value[i]) { @@ -2403,30 +2529,85 @@ static ssize_t write_pair(int fd, const char *key, const char *value) return ret; } -static ssize_t find_beginning_of_line(const char *contents, size_t size, - size_t offset_, int *found_bracket) +/* + * If we are about to unset the last key(s) in a section, and if there are + * no comments surrounding (or included in) the section, we will want to + * extend begin/end to remove the entire section. + * + * Note: the parameter `seen_ptr` points to the index into the store.seen + * array. * This index may be incremented if a section has more than one + * entry (which all are to be removed). + */ +static void maybe_remove_section(struct config_store_data *store, + const char *contents, + size_t *begin_offset, size_t *end_offset, + int *seen_ptr) { - size_t equal_offset = size, bracket_offset = size; - ssize_t offset; + size_t begin; + int i, seen, section_seen = 0; -contline: - for (offset = offset_-2; offset > 0 - && contents[offset] != '\n'; offset--) - switch (contents[offset]) { - case '=': equal_offset = offset; break; - case ']': bracket_offset = offset; break; + /* + * First, ensure that this is the first key, and that there are no + * comments before the entry nor before the section header. + */ + seen = *seen_ptr; + for (i = store->seen[seen]; i > 0; i--) { + enum config_event_t type = store->parsed[i - 1].type; + + if (type == CONFIG_EVENT_COMMENT) + /* There is a comment before this entry or section */ + return; + if (type == CONFIG_EVENT_ENTRY) { + if (!section_seen) + /* This is not the section's first entry. */ + return; + /* We encountered no comment before the section. */ + break; + } + if (type == CONFIG_EVENT_SECTION) { + if (!store->parsed[i - 1].is_keys_section) + break; + section_seen = 1; + } + } + begin = store->parsed[i].begin; + + /* + * Next, make sure that we are removing he last key(s) in the section, + * and that there are no comments that are possibly about the current + * section. + */ + for (i = store->seen[seen] + 1; i < store->parsed_nr; i++) { + enum config_event_t type = store->parsed[i].type; + + if (type == CONFIG_EVENT_COMMENT) + return; + if (type == CONFIG_EVENT_SECTION) { + if (store->parsed[i].is_keys_section) + continue; + break; + } + if (type == CONFIG_EVENT_ENTRY) { + if (++seen < store->seen_nr && + i == store->seen[seen]) + /* We want to remove this entry, too */ + continue; + /* There is another entry in this section. */ + return; } - 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; + /* + * We are really removing the last entry/entries from this section, and + * there are no enclosed or surrounding comments. Remove the entire, + * now-empty section. + */ + *seen_ptr = seen; + *begin_offset = begin; + if (i < store->parsed_nr) + *end_offset = store->parsed[i].begin; + else + *end_offset = store->parsed[store->parsed_nr - 1].end; } int git_config_set_in_file_gently(const char *config_filename, @@ -2487,6 +2668,9 @@ int git_config_set_multivar_in_file_gently(const char *config_filename, char *filename_buf = NULL; char *contents = NULL; size_t contents_sz; + struct config_store_data store; + + memset(&store, 0, sizeof(store)); /* parse-key returns negative; flip the sign to feed exit(3) */ ret = 0 - git_config_parse_key(key, &store.key, &store.baselen); @@ -2504,8 +2688,7 @@ int git_config_set_multivar_in_file_gently(const char *config_filename, */ 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); + error_errno(_("could not lock config file %s"), config_filename); ret = CONFIG_NO_LOCK; goto out_free; } @@ -2515,10 +2698,8 @@ int git_config_set_multivar_in_file_gently(const char *config_filename, */ in_fd = open(config_filename, O_RDONLY); if ( in_fd < 0 ) { - free(store.key); - if ( ENOENT != errno ) { - error_errno("opening %s", config_filename); + error_errno(_("opening %s"), config_filename); ret = CONFIG_INVALID_FILE; /* same as "invalid config file" */ goto out_free; } @@ -2528,14 +2709,16 @@ int git_config_set_multivar_in_file_gently(const char *config_filename, goto out_free; } - store.key = (char *)key; - if (write_section(fd, key) < 0 || - write_pair(fd, key, value) < 0) + free(store.key); + store.key = xstrdup(key); + if (write_section(fd, key, &store) < 0 || + write_pair(fd, key, value, &store) < 0) goto write_err_out; } else { struct stat st; size_t copy_begin, copy_end; int i, new_line = 0; + struct config_options opts; if (value_regex == NULL) store.value_regex = NULL; @@ -2551,46 +2734,39 @@ int git_config_set_multivar_in_file_gently(const char *config_filename, 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); + error(_("invalid pattern: %s"), value_regex); + FREE_AND_NULL(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; + ALLOC_GROW(store.parsed, 1, store.parsed_alloc); + store.parsed[0].end = 0; + + memset(&opts, 0, sizeof(opts)); + opts.event_fn = store_aux_event; + opts.event_fn_data = &store; /* - * After this, store.offset will contain the *end* offset - * of the last match, or remain at 0 if no match was found. + * After this, store.parsed will contain offsets of all the + * parsed elements, and store.seen will contain a list of + * matches, as indices into store.parsed. + * * 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); - } + if (git_config_from_file_with_options(store_aux, + config_filename, + &store, &opts)) { + error(_("invalid config file %s"), config_filename); 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)) { + if ((store.seen_nr == 0 && value == NULL) || + (store.seen_nr > 1 && multi_replace == 0)) { ret = CONFIG_NOTHING_SET; goto out_free; } @@ -2607,7 +2783,7 @@ int git_config_set_multivar_in_file_gently(const char *config_filename, if (contents == MAP_FAILED) { if (errno == ENODEV && S_ISDIR(st.st_mode)) errno = EISDIR; - error_errno("unable to mmap '%s'", config_filename); + error_errno(_("unable to mmap '%s'"), config_filename); ret = CONFIG_INVALID_FILE; contents = NULL; goto out_free; @@ -2616,23 +2792,54 @@ int git_config_set_multivar_in_file_gently(const char *config_filename, 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)); + 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; + if (store.seen_nr == 0) { + if (!store.seen_alloc) { + /* Did not see key nor section */ + ALLOC_GROW(store.seen, 1, store.seen_alloc); + store.seen[0] = store.parsed_nr + - !!store.parsed_nr; + } + store.seen_nr = 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); + for (i = 0, copy_begin = 0; i < store.seen_nr; i++) { + size_t replace_end; + int j = store.seen[i]; + + new_line = 0; + if (!store.key_seen) { + copy_end = store.parsed[j].end; + /* include '\n' when copying section header */ + if (copy_end > 0 && copy_end < contents_sz && + contents[copy_end - 1] != '\n' && + contents[copy_end] == '\n') + copy_end++; + replace_end = copy_end; + } else { + replace_end = store.parsed[j].end; + copy_end = store.parsed[j].begin; + if (!value) + maybe_remove_section(&store, contents, + ©_end, + &replace_end, &i); + /* + * Swallow preceding white-space on the same + * line. + */ + while (copy_end > 0 ) { + char c = contents[copy_end - 1]; + + if (isspace(c) && c != '\n') + copy_end--; + else + break; + } + } if (copy_end > 0 && contents[copy_end-1] != '\n') new_line = 1; @@ -2646,16 +2853,16 @@ int git_config_set_multivar_in_file_gently(const char *config_filename, write_str_in_full(fd, "\n") < 0) goto write_err_out; } - copy_begin = store.offset[i]; + copy_begin = replace_end; } /* write the pair (value == NULL means unset) */ if (value != NULL) { - if (store.state == START) { - if (write_section(fd, key) < 0) + if (!store.section_seen) { + if (write_section(fd, key, &store) < 0) goto write_err_out; } - if (write_pair(fd, key, value) < 0) + if (write_pair(fd, key, value, &store) < 0) goto write_err_out; } @@ -2670,7 +2877,7 @@ int git_config_set_multivar_in_file_gently(const char *config_filename, } if (commit_lock_file(&lock) < 0) { - error_errno("could not write config file %s", config_filename); + error_errno(_("could not write config file %s"), config_filename); ret = CONFIG_NO_WRITE; goto out_free; } @@ -2687,6 +2894,7 @@ out_free: munmap(contents, contents_sz); if (in_fd >= 0) close(in_fd); + config_store_data_clear(&store); return ret; write_err_out: @@ -2779,7 +2987,8 @@ static int section_name_is_ok(const char *name) /* if new_name == NULL, the section is removed instead */ static int git_config_copy_or_rename_section_in_file(const char *config_filename, - const char *old_name, const char *new_name, int copy) + const char *old_name, + const char *new_name, int copy) { int ret = 0, remove = 0; char *filename_buf = NULL; @@ -2789,9 +2998,12 @@ static int git_config_copy_or_rename_section_in_file(const char *config_filename FILE *config_file = NULL; struct stat st; struct strbuf copystr = STRBUF_INIT; + struct config_store_data store; + + memset(&store, 0, sizeof(store)); if (new_name && !section_name_is_ok(new_name)) { - ret = error("invalid section name: %s", new_name); + ret = error(_("invalid section name: %s"), new_name); goto out_no_rollback; } @@ -2800,7 +3012,7 @@ static int git_config_copy_or_rename_section_in_file(const char *config_filename 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); + ret = error(_("could not lock config file %s"), config_filename); goto out; } @@ -2818,7 +3030,7 @@ static int git_config_copy_or_rename_section_in_file(const char *config_filename } if (chmod(get_lock_file_path(&lock), st.st_mode & 07777) < 0) { - ret = error_errno("chmod on %s failed", + ret = error_errno(_("chmod on %s failed"), get_lock_file_path(&lock)); goto out; } @@ -2858,7 +3070,7 @@ static int git_config_copy_or_rename_section_in_file(const char *config_filename } store.baselen = strlen(new_name); if (!copy) { - if (write_section(out_fd, new_name) < 0) { + if (write_section(out_fd, new_name, &store) < 0) { ret = write_error(get_lock_file_path(&lock)); goto out; } @@ -2879,7 +3091,7 @@ static int git_config_copy_or_rename_section_in_file(const char *config_filename output[0] = '\t'; } } else { - copystr = store_create_section(new_name); + copystr = store_create_section(new_name, &store); } } remove = 0; @@ -2915,7 +3127,7 @@ static int git_config_copy_or_rename_section_in_file(const char *config_filename config_file = NULL; commit_and_out: if (commit_lock_file(&lock) < 0) - ret = error_errno("could not write config file %s", + ret = error_errno(_("could not write config file %s"), config_filename); out: if (config_file) @@ -2923,6 +3135,7 @@ out: rollback_lock_file(&lock); out_no_rollback: free(filename_buf); + config_store_data_clear(&store); return ret; } @@ -2957,7 +3170,7 @@ int git_config_copy_section(const char *old_name, const char *new_name) #undef config_error_nonbool int config_error_nonbool(const char *var) { - return error("missing value for '%s'", var); + return error(_("missing value for '%s'"), var); } int parse_config_key(const char *var, @@ -3004,7 +3217,7 @@ const char *current_config_origin_type(void) else if(cf) type = cf->origin_type; else - die("BUG: current_config_origin_type called outside config callback"); + BUG("current_config_origin_type called outside config callback"); switch (type) { case CONFIG_ORIGIN_BLOB: @@ -3018,7 +3231,7 @@ const char *current_config_origin_type(void) case CONFIG_ORIGIN_CMDLINE: return "command line"; default: - die("BUG: unknown config origin type"); + BUG("unknown config origin type"); } } @@ -3030,7 +3243,7 @@ const char *current_config_name(void) else if (cf) name = cf->name; else - die("BUG: current_config_name called outside config callback"); + BUG("current_config_name called outside config callback"); return name ? name : ""; } @@ -3041,3 +3254,16 @@ enum config_scope current_config_scope(void) else return current_parsing_scope; } + +int lookup_config(const char **mapping, int nr_mapping, const char *var) +{ + int i; + + for (i = 0; i < nr_mapping; i++) { + const char *name = mapping[i]; + + if (name && !strcasecmp(var, name)) + return i; + } + return -1; +} |