diff --git a/config.c b/config.c index 036bae205c11f945c4ddbe63added4b399fcca87..cf94a690ad55130e42f1a56f79bae40917c2d8ce 100644 --- a/config.c +++ b/config.c @@ -2294,8 +2294,11 @@ struct config_store_data { int do_not_match; regex_t *value_regex; int multi_replace; - size_t *seen; - unsigned int seen_nr, seen_alloc; + struct { + size_t begin, end; + enum config_event_t type; + } *parsed; + unsigned int parsed_nr, parsed_alloc, *seen, seen_nr, seen_alloc; unsigned int key_seen:1, section_seen:1, is_keys_section:1; }; @@ -2313,10 +2316,31 @@ static int matches(const char *key, const char *value, (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; + store->parsed_nr++; + + if (type == CONFIG_EVENT_SECTION) { + if (cf->var.len < 2 || cf->var.buf[cf->var.len - 1] != '.') + BUG("Invalid section name '%s'", cf->var.buf); + + /* Is this the section we were looking for? */ + store->is_keys_section = cf->var.len - 1 == store->baselen && + !strncasecmp(cf->var.buf, store->key, store->baselen); + } + + 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; if (store->key_seen) { @@ -2328,55 +2352,21 @@ static int store_aux(const char *key, const char *value, void *cb) ALLOC_GROW(store->seen, store->seen_nr + 1, store->seen_alloc); - store->seen[store->seen_nr] = cf->do_ftell(cf); + store->seen[store->seen_nr] = store->parsed_nr; store->seen_nr++; } - return 0; } 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; - - if ((section_len != store->baselen) || - memcmp(key, store->key, section_len+1)) { - store->is_keys_section = 0; - return 0; - } - /* - * Do not increment matches: this is no match, but we - * just made sure we are in the desired section. - */ - ALLOC_GROW(store->seen, store->seen_nr + 1, - store->seen_alloc); - store->seen[store->seen_nr] = cf->do_ftell(cf); - } - - if (matches(key, value, store)) { - ALLOC_GROW(store->seen, store->seen_nr + 1, - store->seen_alloc); - store->seen[store->seen_nr] = cf->do_ftell(cf); - store->seen_nr++; - store->key_seen = 1; + ALLOC_GROW(store->seen, store->seen_nr + 1, store->seen_alloc); + store->seen[store->seen_nr] = store->parsed_nr; store->section_seen = 1; - store->is_keys_section = 1; - } else { - if (strrchr(key, '.') - key == store->baselen && - !strncmp(key, store->key, store->baselen)) { - store->section_seen = 1; - store->is_keys_section = 1; - ALLOC_GROW(store->seen, - store->seen_nr + 1, - store->seen_alloc); - store->seen[store->seen_nr] = - cf->do_ftell(cf); + + if (matches(key, value, store)) { + store->seen_nr++; + store->key_seen = 1; } } @@ -2477,32 +2467,6 @@ 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) -{ - size_t equal_offset = size, bracket_offset = size; - ssize_t offset; - -contline: - for (offset = offset_-2; offset > 0 - && contents[offset] != '\n'; offset--) - switch (contents[offset]) { - case '=': equal_offset = offset; break; - case ']': bracket_offset = offset; break; - } - if (offset > 0 && contents[offset-1] == '\\') { - offset_ = offset; - goto contline; - } - if (bracket_offset < equal_offset) { - *found_bracket = 1; - offset = bracket_offset+1; - } else - offset++; - - return offset; -} - int git_config_set_in_file_gently(const char *config_filename, const char *key, const char *value) { @@ -2613,6 +2577,7 @@ int git_config_set_multivar_in_file_gently(const char *config_filename, 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; @@ -2635,17 +2600,24 @@ int git_config_set_multivar_in_file_gently(const char *config_filename, } } - ALLOC_GROW(store.seen, 1, store.seen_alloc); - store.seen[0] = 0; - store.seen_nr = 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, &store)) { + if (git_config_from_file_with_options(store_aux, + config_filename, + &store, &opts)) { error("invalid config file %s", config_filename); free(store.key); if (store.value_regex != NULL && @@ -2697,19 +2669,39 @@ int git_config_set_multivar_in_file_gently(const char *config_filename, goto out_free; } - if (store.seen_nr == 0) + 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_nr; i++) { + size_t replace_end; + int j = store.seen[i]; + new_line = 0; - if (store.seen[i] == 0) { - store.seen[i] = copy_end = contents_sz; - } else if (!store.key_seen) { - copy_end = store.seen[i]; - } else - copy_end = find_beginning_of_line( - contents, contents_sz, - store.seen[i], &new_line); + if (!store.key_seen) { + replace_end = copy_end = store.parsed[j].end; + } else { + replace_end = store.parsed[j].end; + copy_end = store.parsed[j].begin; + /* + * 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; @@ -2723,7 +2715,7 @@ 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.seen[i]; + copy_begin = replace_end; } /* write the pair (value == NULL means unset) */