diff options
Diffstat (limited to 'trailer.c')
| -rw-r--r-- | trailer.c | 260 |
1 files changed, 146 insertions, 114 deletions
@@ -11,6 +11,27 @@ * Copyright (c) 2013, 2014 Christian Couder <chriscool@tuxfamily.org> */ +struct trailer_info { + /* + * True if there is a blank line before the location pointed to by + * trailer_block_start. + */ + int blank_line_before_trailer; + + /* + * Offsets to the trailer block start and end positions in the input + * string. If no trailer block is found, these are both set to the + * "true" end of the input (find_end_of_log_message()). + */ + size_t trailer_block_start, trailer_block_end; + + /* + * Array of trailers found. + */ + char **trailers; + size_t trailer_nr; +}; + struct conf_info { char *name; char *key; @@ -144,38 +165,6 @@ static char last_non_space_char(const char *s) return '\0'; } -static void print_tok_val(struct strbuf *out, const char *tok, const char *val) -{ - char c; - - if (!tok) { - strbuf_addf(out, "%s\n", val); - return; - } - - c = last_non_space_char(tok); - if (!c) - return; - if (strchr(separators, c)) - strbuf_addf(out, "%s%s\n", tok, val); - else - strbuf_addf(out, "%s%c %s\n", tok, separators[0], val); -} - -void format_trailers(const struct process_trailer_options *opts, - struct list_head *trailers, - struct strbuf *out) -{ - struct list_head *pos; - struct trailer_item *item; - list_for_each(pos, trailers) { - item = list_entry(pos, struct trailer_item, list); - if ((!opts->trim_empty || strlen(item->value) > 0) && - (!opts->only_trailers || item->token)) - print_tok_val(out, item->token, item->value); - } -} - static struct trailer_item *trailer_from_arg(struct arg_item *arg_tok) { struct trailer_item *new_item = xcalloc(1, sizeof(*new_item)); @@ -984,20 +973,72 @@ static void unfold_value(struct strbuf *val) strbuf_release(&out); } +static struct trailer_info *trailer_info_new(void) +{ + struct trailer_info *info = xcalloc(1, sizeof(*info)); + return info; +} + +static struct trailer_info *trailer_info_get(const struct process_trailer_options *opts, + const char *str) +{ + struct trailer_info *info = trailer_info_new(); + size_t end_of_log_message = 0, trailer_block_start = 0; + struct strbuf **trailer_lines, **ptr; + char **trailer_strings = NULL; + size_t nr = 0, alloc = 0; + char **last = NULL; + + trailer_config_init(); + + end_of_log_message = find_end_of_log_message(str, opts->no_divider); + trailer_block_start = find_trailer_block_start(str, end_of_log_message); + + trailer_lines = strbuf_split_buf(str + trailer_block_start, + end_of_log_message - trailer_block_start, + '\n', + 0); + for (ptr = trailer_lines; *ptr; ptr++) { + if (last && isspace((*ptr)->buf[0])) { + struct strbuf sb = STRBUF_INIT; + strbuf_attach(&sb, *last, strlen(*last), strlen(*last)); + strbuf_addbuf(&sb, *ptr); + *last = strbuf_detach(&sb, NULL); + continue; + } + ALLOC_GROW(trailer_strings, nr + 1, alloc); + trailer_strings[nr] = strbuf_detach(*ptr, NULL); + last = find_separator(trailer_strings[nr], separators) >= 1 + ? &trailer_strings[nr] + : NULL; + nr++; + } + strbuf_list_free(trailer_lines); + + info->blank_line_before_trailer = ends_with_blank_line(str, + trailer_block_start); + info->trailer_block_start = trailer_block_start; + info->trailer_block_end = end_of_log_message; + info->trailers = trailer_strings; + info->trailer_nr = nr; + + return info; +} + /* - * Parse trailers in "str", populating the trailer info and "head" + * Parse trailers in "str", populating the trailer info and "trailer_objects" * linked list structure. */ -void parse_trailers(const struct process_trailer_options *opts, - struct trailer_info *info, - const char *str, - struct list_head *head) +struct trailer_info *parse_trailers(const struct process_trailer_options *opts, + const char *str, + struct list_head *trailer_objects) { + struct trailer_info *info; struct strbuf tok = STRBUF_INIT; struct strbuf val = STRBUF_INIT; size_t i; - trailer_info_get(opts, str, info); + info = trailer_info_get(opts, str); for (i = 0; i < info->trailer_nr; i++) { int separator_pos; @@ -1010,17 +1051,19 @@ void parse_trailers(const struct process_trailer_options *opts, separator_pos); if (opts->unfold) unfold_value(&val); - add_trailer_item(head, + add_trailer_item(trailer_objects, strbuf_detach(&tok, NULL), strbuf_detach(&val, NULL)); } else if (!opts->only_trailers) { strbuf_addstr(&val, trailer); strbuf_strip_suffix(&val, "\n"); - add_trailer_item(head, + add_trailer_item(trailer_objects, NULL, strbuf_detach(&val, NULL)); } } + + return info; } void free_trailers(struct list_head *trailers) @@ -1032,48 +1075,19 @@ void free_trailers(struct list_head *trailers) } } -void trailer_info_get(const struct process_trailer_options *opts, - const char *str, - struct trailer_info *info) +size_t trailer_block_start(struct trailer_info *info) { - size_t end_of_log_message = 0, trailer_block_start = 0; - struct strbuf **trailer_lines, **ptr; - char **trailer_strings = NULL; - size_t nr = 0, alloc = 0; - char **last = NULL; - - trailer_config_init(); - - end_of_log_message = find_end_of_log_message(str, opts->no_divider); - trailer_block_start = find_trailer_block_start(str, end_of_log_message); + return info->trailer_block_start; +} - trailer_lines = strbuf_split_buf(str + trailer_block_start, - end_of_log_message - trailer_block_start, - '\n', - 0); - for (ptr = trailer_lines; *ptr; ptr++) { - if (last && isspace((*ptr)->buf[0])) { - struct strbuf sb = STRBUF_INIT; - strbuf_attach(&sb, *last, strlen(*last), strlen(*last)); - strbuf_addbuf(&sb, *ptr); - *last = strbuf_detach(&sb, NULL); - continue; - } - ALLOC_GROW(trailer_strings, nr + 1, alloc); - trailer_strings[nr] = strbuf_detach(*ptr, NULL); - last = find_separator(trailer_strings[nr], separators) >= 1 - ? &trailer_strings[nr] - : NULL; - nr++; - } - strbuf_list_free(trailer_lines); +size_t trailer_block_end(struct trailer_info *info) +{ + return info->trailer_block_end; +} - info->blank_line_before_trailer = ends_with_blank_line(str, - trailer_block_start); - info->trailer_block_start = trailer_block_start; - info->trailer_block_end = end_of_log_message; - info->trailers = trailer_strings; - info->trailer_nr = nr; +int blank_line_before_trailer_block(struct trailer_info *info) +{ + return info->blank_line_before_trailer; } void trailer_info_release(struct trailer_info *info) @@ -1082,28 +1096,35 @@ void trailer_info_release(struct trailer_info *info) for (i = 0; i < info->trailer_nr; i++) free(info->trailers[i]); free(info->trailers); + free(info); } -static void format_trailer_info(const struct process_trailer_options *opts, - const struct trailer_info *info, - struct strbuf *out) +void format_trailers(const struct process_trailer_options *opts, + struct list_head *trailers, + struct strbuf *out) { size_t origlen = out->len; - size_t i; - - for (i = 0; i < info->trailer_nr; i++) { - char *trailer = info->trailers[i]; - ssize_t separator_pos = find_separator(trailer, separators); + struct list_head *pos; + struct trailer_item *item; - if (separator_pos >= 1) { + list_for_each(pos, trailers) { + item = list_entry(pos, struct trailer_item, list); + if (item->token) { struct strbuf tok = STRBUF_INIT; struct strbuf val = STRBUF_INIT; + strbuf_addstr(&tok, item->token); + strbuf_addstr(&val, item->value); + + /* + * Skip key/value pairs where the value was empty. This + * can happen from trailers specified without a + * separator, like `--trailer "Reviewed-by"` (no + * corresponding value). + */ + if (opts->trim_empty && !strlen(item->value)) + continue; - parse_trailer(&tok, &val, NULL, trailer, separator_pos); if (!opts->filter || opts->filter(&tok, opts->filter_data)) { - if (opts->unfold) - unfold_value(&val); - if (opts->separator && out->len != origlen) strbuf_addbuf(out, opts->separator); if (!opts->value_only) @@ -1111,8 +1132,11 @@ static void format_trailer_info(const struct process_trailer_options *opts, if (!opts->key_only && !opts->value_only) { if (opts->key_value_separator) strbuf_addbuf(out, opts->key_value_separator); - else - strbuf_addstr(out, ": "); + else { + char c = last_non_space_char(tok.buf); + if (c && !strchr(separators, c)) + strbuf_addf(out, "%c ", separators[0]); + } } if (!opts->key_only) strbuf_addbuf(out, &val); @@ -1126,13 +1150,13 @@ static void format_trailer_info(const struct process_trailer_options *opts, if (opts->separator && out->len != origlen) { strbuf_addbuf(out, opts->separator); } - strbuf_addstr(out, trailer); - if (opts->separator) { + strbuf_addstr(out, item->value); + if (opts->separator) strbuf_rtrim(out); - } + else + strbuf_addch(out, '\n'); } } - } void format_trailers_from_commit(const struct process_trailer_options *opts, @@ -1140,21 +1164,19 @@ void format_trailers_from_commit(const struct process_trailer_options *opts, struct strbuf *out) { LIST_HEAD(trailer_objects); - struct trailer_info info; - - parse_trailers(opts, &info, msg, &trailer_objects); + struct trailer_info *info = parse_trailers(opts, msg, &trailer_objects); /* If we want the whole block untouched, we can take the fast path. */ if (!opts->only_trailers && !opts->unfold && !opts->filter && !opts->separator && !opts->key_only && !opts->value_only && !opts->key_value_separator) { - strbuf_add(out, msg + info.trailer_block_start, - info.trailer_block_end - info.trailer_block_start); + strbuf_add(out, msg + info->trailer_block_start, + info->trailer_block_end - info->trailer_block_start); } else - format_trailer_info(opts, &info, out); + format_trailers(opts, &trailer_objects, out); free_trailers(&trailer_objects); - trailer_info_release(&info); + trailer_info_release(info); } void trailer_iterator_init(struct trailer_iterator *iter, const char *msg) @@ -1163,23 +1185,21 @@ void trailer_iterator_init(struct trailer_iterator *iter, const char *msg) strbuf_init(&iter->key, 0); strbuf_init(&iter->val, 0); opts.no_divider = 1; - trailer_info_get(&opts, msg, &iter->internal.info); + iter->internal.info = trailer_info_get(&opts, msg); iter->internal.cur = 0; } int trailer_iterator_advance(struct trailer_iterator *iter) { - while (iter->internal.cur < iter->internal.info.trailer_nr) { - char *trailer = iter->internal.info.trailers[iter->internal.cur++]; - int separator_pos = find_separator(trailer, separators); - - if (separator_pos < 1) - continue; /* not a real trailer */ + if (iter->internal.cur < iter->internal.info->trailer_nr) { + char *line = iter->internal.info->trailers[iter->internal.cur++]; + int separator_pos = find_separator(line, separators); + iter->raw = line; strbuf_reset(&iter->key); strbuf_reset(&iter->val); parse_trailer(&iter->key, &iter->val, NULL, - trailer, separator_pos); + line, separator_pos); /* Always unfold values during iteration. */ unfold_value(&iter->val); return 1; @@ -1189,7 +1209,19 @@ int trailer_iterator_advance(struct trailer_iterator *iter) void trailer_iterator_release(struct trailer_iterator *iter) { - trailer_info_release(&iter->internal.info); + trailer_info_release(iter->internal.info); strbuf_release(&iter->val); strbuf_release(&iter->key); } + +int amend_file_with_trailers(const char *path, const struct strvec *trailer_args) +{ + struct child_process run_trailer = CHILD_PROCESS_INIT; + + run_trailer.git_cmd = 1; + strvec_pushl(&run_trailer.args, "interpret-trailers", + "--in-place", "--no-divider", + path, NULL); + strvec_pushv(&run_trailer.args, trailer_args->v); + return run_command(&run_trailer); +} |