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![Jonathan Tan](/assets/img/avatar_default.png)
Currently, creation and addition (to a list) of trailer items are spread across multiple functions. Streamline this by only having 2 functions: one to parse the user-supplied string, and one to add the parsed information to a list. Signed-off-by: Jonathan Tan <jonathantanmy@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
830 lines
21 KiB
C
830 lines
21 KiB
C
#include "cache.h"
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#include "string-list.h"
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#include "run-command.h"
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#include "commit.h"
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#include "tempfile.h"
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#include "trailer.h"
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#include "list.h"
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/*
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* Copyright (c) 2013, 2014 Christian Couder <chriscool@tuxfamily.org>
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*/
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enum action_where { WHERE_END, WHERE_AFTER, WHERE_BEFORE, WHERE_START };
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enum action_if_exists { EXISTS_ADD_IF_DIFFERENT_NEIGHBOR, EXISTS_ADD_IF_DIFFERENT,
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EXISTS_ADD, EXISTS_REPLACE, EXISTS_DO_NOTHING };
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enum action_if_missing { MISSING_ADD, MISSING_DO_NOTHING };
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struct conf_info {
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char *name;
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char *key;
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char *command;
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enum action_where where;
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enum action_if_exists if_exists;
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enum action_if_missing if_missing;
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};
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static struct conf_info default_conf_info;
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struct trailer_item {
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struct list_head list;
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char *token;
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char *value;
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struct conf_info conf;
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};
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static LIST_HEAD(conf_head);
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static char *separators = ":";
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#define TRAILER_ARG_STRING "$ARG"
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/* Iterate over the elements of the list. */
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#define list_for_each_dir(pos, head, is_reverse) \
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for (pos = is_reverse ? (head)->prev : (head)->next; \
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pos != (head); \
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pos = is_reverse ? pos->prev : pos->next)
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static int after_or_end(enum action_where where)
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{
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return (where == WHERE_AFTER) || (where == WHERE_END);
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}
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/*
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* Return the length of the string not including any final
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* punctuation. E.g., the input "Signed-off-by:" would return
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* 13, stripping the trailing punctuation but retaining
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* internal punctuation.
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*/
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static size_t token_len_without_separator(const char *token, size_t len)
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{
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while (len > 0 && !isalnum(token[len - 1]))
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len--;
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return len;
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}
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static int same_token(struct trailer_item *a, struct trailer_item *b)
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{
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size_t a_len = token_len_without_separator(a->token, strlen(a->token));
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size_t b_len = token_len_without_separator(b->token, strlen(b->token));
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size_t min_len = (a_len > b_len) ? b_len : a_len;
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return !strncasecmp(a->token, b->token, min_len);
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}
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static int same_value(struct trailer_item *a, struct trailer_item *b)
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{
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return !strcasecmp(a->value, b->value);
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}
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static int same_trailer(struct trailer_item *a, struct trailer_item *b)
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{
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return same_token(a, b) && same_value(a, b);
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}
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static inline int contains_only_spaces(const char *str)
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{
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const char *s = str;
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while (*s && isspace(*s))
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s++;
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return !*s;
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}
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static inline void strbuf_replace(struct strbuf *sb, const char *a, const char *b)
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{
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const char *ptr = strstr(sb->buf, a);
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if (ptr)
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strbuf_splice(sb, ptr - sb->buf, strlen(a), b, strlen(b));
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}
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static void free_trailer_item(struct trailer_item *item)
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{
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free(item->conf.name);
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free(item->conf.key);
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free(item->conf.command);
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free(item->token);
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free(item->value);
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free(item);
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}
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static char last_non_space_char(const char *s)
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{
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int i;
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for (i = strlen(s) - 1; i >= 0; i--)
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if (!isspace(s[i]))
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return s[i];
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return '\0';
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}
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static void print_tok_val(FILE *outfile, const char *tok, const char *val)
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{
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char c = last_non_space_char(tok);
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if (!c)
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return;
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if (strchr(separators, c))
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fprintf(outfile, "%s%s\n", tok, val);
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else
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fprintf(outfile, "%s%c %s\n", tok, separators[0], val);
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}
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static void print_all(FILE *outfile, struct list_head *head, int trim_empty)
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{
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struct list_head *pos;
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struct trailer_item *item;
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list_for_each(pos, head) {
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item = list_entry(pos, struct trailer_item, list);
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if (!trim_empty || strlen(item->value) > 0)
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print_tok_val(outfile, item->token, item->value);
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}
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}
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static void add_arg_to_input_list(struct trailer_item *on_tok,
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struct trailer_item *arg_tok)
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{
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if (after_or_end(arg_tok->conf.where))
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list_add(&arg_tok->list, &on_tok->list);
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else
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list_add_tail(&arg_tok->list, &on_tok->list);
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}
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static int check_if_different(struct trailer_item *in_tok,
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struct trailer_item *arg_tok,
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int check_all,
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struct list_head *head)
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{
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enum action_where where = arg_tok->conf.where;
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struct list_head *next_head;
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do {
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if (same_trailer(in_tok, arg_tok))
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return 0;
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/*
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* if we want to add a trailer after another one,
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* we have to check those before this one
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*/
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next_head = after_or_end(where) ? in_tok->list.prev
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: in_tok->list.next;
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if (next_head == head)
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break;
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in_tok = list_entry(next_head, struct trailer_item, list);
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} while (check_all);
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return 1;
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}
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static char *apply_command(const char *command, const char *arg)
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{
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struct strbuf cmd = STRBUF_INIT;
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struct strbuf buf = STRBUF_INIT;
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struct child_process cp = CHILD_PROCESS_INIT;
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const char *argv[] = {NULL, NULL};
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char *result;
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strbuf_addstr(&cmd, command);
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if (arg)
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strbuf_replace(&cmd, TRAILER_ARG_STRING, arg);
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argv[0] = cmd.buf;
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cp.argv = argv;
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cp.env = local_repo_env;
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cp.no_stdin = 1;
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cp.use_shell = 1;
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if (capture_command(&cp, &buf, 1024)) {
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error(_("running trailer command '%s' failed"), cmd.buf);
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strbuf_release(&buf);
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result = xstrdup("");
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} else {
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strbuf_trim(&buf);
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result = strbuf_detach(&buf, NULL);
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}
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strbuf_release(&cmd);
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return result;
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}
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static void apply_item_command(struct trailer_item *in_tok, struct trailer_item *arg_tok)
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{
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if (arg_tok->conf.command) {
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const char *arg;
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if (arg_tok->value && arg_tok->value[0]) {
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arg = arg_tok->value;
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} else {
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if (in_tok && in_tok->value)
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arg = xstrdup(in_tok->value);
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else
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arg = xstrdup("");
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}
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arg_tok->value = apply_command(arg_tok->conf.command, arg);
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free((char *)arg);
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}
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}
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static void apply_arg_if_exists(struct trailer_item *in_tok,
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struct trailer_item *arg_tok,
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struct trailer_item *on_tok,
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struct list_head *head)
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{
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switch (arg_tok->conf.if_exists) {
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case EXISTS_DO_NOTHING:
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free_trailer_item(arg_tok);
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break;
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case EXISTS_REPLACE:
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apply_item_command(in_tok, arg_tok);
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add_arg_to_input_list(on_tok, arg_tok);
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list_del(&in_tok->list);
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free_trailer_item(in_tok);
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break;
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case EXISTS_ADD:
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apply_item_command(in_tok, arg_tok);
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add_arg_to_input_list(on_tok, arg_tok);
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break;
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case EXISTS_ADD_IF_DIFFERENT:
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apply_item_command(in_tok, arg_tok);
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if (check_if_different(in_tok, arg_tok, 1, head))
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add_arg_to_input_list(on_tok, arg_tok);
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else
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free_trailer_item(arg_tok);
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break;
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case EXISTS_ADD_IF_DIFFERENT_NEIGHBOR:
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apply_item_command(in_tok, arg_tok);
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if (check_if_different(on_tok, arg_tok, 0, head))
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add_arg_to_input_list(on_tok, arg_tok);
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else
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free_trailer_item(arg_tok);
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break;
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}
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}
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static void apply_arg_if_missing(struct list_head *head,
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struct trailer_item *arg_tok)
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{
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enum action_where where;
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switch (arg_tok->conf.if_missing) {
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case MISSING_DO_NOTHING:
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free_trailer_item(arg_tok);
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break;
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case MISSING_ADD:
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where = arg_tok->conf.where;
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apply_item_command(NULL, arg_tok);
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if (after_or_end(where))
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list_add_tail(&arg_tok->list, head);
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else
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list_add(&arg_tok->list, head);
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}
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}
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static int find_same_and_apply_arg(struct list_head *head,
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struct trailer_item *arg_tok)
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{
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struct list_head *pos;
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struct trailer_item *in_tok;
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struct trailer_item *on_tok;
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enum action_where where = arg_tok->conf.where;
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int middle = (where == WHERE_AFTER) || (where == WHERE_BEFORE);
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int backwards = after_or_end(where);
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struct trailer_item *start_tok;
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if (list_empty(head))
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return 0;
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start_tok = list_entry(backwards ? head->prev : head->next,
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struct trailer_item,
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list);
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list_for_each_dir(pos, head, backwards) {
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in_tok = list_entry(pos, struct trailer_item, list);
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if (!same_token(in_tok, arg_tok))
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continue;
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on_tok = middle ? in_tok : start_tok;
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apply_arg_if_exists(in_tok, arg_tok, on_tok, head);
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return 1;
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}
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return 0;
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}
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static void process_trailers_lists(struct list_head *head,
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struct list_head *arg_head)
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{
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struct list_head *pos, *p;
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struct trailer_item *arg_tok;
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list_for_each_safe(pos, p, arg_head) {
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int applied = 0;
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arg_tok = list_entry(pos, struct trailer_item, list);
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list_del(pos);
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applied = find_same_and_apply_arg(head, arg_tok);
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if (!applied)
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apply_arg_if_missing(head, arg_tok);
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}
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}
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static int set_where(struct conf_info *item, const char *value)
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{
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if (!strcasecmp("after", value))
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item->where = WHERE_AFTER;
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else if (!strcasecmp("before", value))
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item->where = WHERE_BEFORE;
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else if (!strcasecmp("end", value))
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item->where = WHERE_END;
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else if (!strcasecmp("start", value))
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item->where = WHERE_START;
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else
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return -1;
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return 0;
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}
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static int set_if_exists(struct conf_info *item, const char *value)
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{
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if (!strcasecmp("addIfDifferent", value))
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item->if_exists = EXISTS_ADD_IF_DIFFERENT;
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else if (!strcasecmp("addIfDifferentNeighbor", value))
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item->if_exists = EXISTS_ADD_IF_DIFFERENT_NEIGHBOR;
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else if (!strcasecmp("add", value))
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item->if_exists = EXISTS_ADD;
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else if (!strcasecmp("replace", value))
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item->if_exists = EXISTS_REPLACE;
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else if (!strcasecmp("doNothing", value))
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item->if_exists = EXISTS_DO_NOTHING;
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else
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return -1;
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return 0;
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}
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static int set_if_missing(struct conf_info *item, const char *value)
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{
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if (!strcasecmp("doNothing", value))
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item->if_missing = MISSING_DO_NOTHING;
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else if (!strcasecmp("add", value))
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item->if_missing = MISSING_ADD;
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else
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return -1;
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return 0;
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}
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static void duplicate_conf(struct conf_info *dst, const struct conf_info *src)
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{
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*dst = *src;
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if (src->name)
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dst->name = xstrdup(src->name);
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if (src->key)
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dst->key = xstrdup(src->key);
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if (src->command)
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dst->command = xstrdup(src->command);
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}
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static struct trailer_item *get_conf_item(const char *name)
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{
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struct list_head *pos;
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struct trailer_item *item;
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/* Look up item with same name */
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list_for_each(pos, &conf_head) {
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item = list_entry(pos, struct trailer_item, list);
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if (!strcasecmp(item->conf.name, name))
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return item;
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}
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/* Item does not already exists, create it */
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item = xcalloc(sizeof(struct trailer_item), 1);
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duplicate_conf(&item->conf, &default_conf_info);
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item->conf.name = xstrdup(name);
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list_add_tail(&item->list, &conf_head);
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return item;
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}
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enum trailer_info_type { TRAILER_KEY, TRAILER_COMMAND, TRAILER_WHERE,
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TRAILER_IF_EXISTS, TRAILER_IF_MISSING };
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static struct {
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const char *name;
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enum trailer_info_type type;
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} trailer_config_items[] = {
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{ "key", TRAILER_KEY },
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{ "command", TRAILER_COMMAND },
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{ "where", TRAILER_WHERE },
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{ "ifexists", TRAILER_IF_EXISTS },
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{ "ifmissing", TRAILER_IF_MISSING }
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};
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static int git_trailer_default_config(const char *conf_key, const char *value, void *cb)
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{
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const char *trailer_item, *variable_name;
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if (!skip_prefix(conf_key, "trailer.", &trailer_item))
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return 0;
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variable_name = strrchr(trailer_item, '.');
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if (!variable_name) {
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if (!strcmp(trailer_item, "where")) {
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if (set_where(&default_conf_info, value) < 0)
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warning(_("unknown value '%s' for key '%s'"),
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value, conf_key);
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} else if (!strcmp(trailer_item, "ifexists")) {
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if (set_if_exists(&default_conf_info, value) < 0)
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warning(_("unknown value '%s' for key '%s'"),
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value, conf_key);
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} else if (!strcmp(trailer_item, "ifmissing")) {
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if (set_if_missing(&default_conf_info, value) < 0)
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warning(_("unknown value '%s' for key '%s'"),
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value, conf_key);
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} else if (!strcmp(trailer_item, "separators")) {
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separators = xstrdup(value);
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}
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}
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return 0;
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}
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static int git_trailer_config(const char *conf_key, const char *value, void *cb)
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{
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const char *trailer_item, *variable_name;
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struct trailer_item *item;
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struct conf_info *conf;
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char *name = NULL;
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enum trailer_info_type type;
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int i;
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if (!skip_prefix(conf_key, "trailer.", &trailer_item))
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return 0;
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variable_name = strrchr(trailer_item, '.');
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if (!variable_name)
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return 0;
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variable_name++;
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for (i = 0; i < ARRAY_SIZE(trailer_config_items); i++) {
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if (strcmp(trailer_config_items[i].name, variable_name))
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continue;
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name = xstrndup(trailer_item, variable_name - trailer_item - 1);
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type = trailer_config_items[i].type;
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break;
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}
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if (!name)
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return 0;
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item = get_conf_item(name);
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conf = &item->conf;
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free(name);
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switch (type) {
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case TRAILER_KEY:
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if (conf->key)
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warning(_("more than one %s"), conf_key);
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conf->key = xstrdup(value);
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break;
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case TRAILER_COMMAND:
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if (conf->command)
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warning(_("more than one %s"), conf_key);
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conf->command = xstrdup(value);
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break;
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case TRAILER_WHERE:
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if (set_where(conf, value))
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warning(_("unknown value '%s' for key '%s'"), value, conf_key);
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break;
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case TRAILER_IF_EXISTS:
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if (set_if_exists(conf, value))
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warning(_("unknown value '%s' for key '%s'"), value, conf_key);
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break;
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case TRAILER_IF_MISSING:
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if (set_if_missing(conf, value))
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warning(_("unknown value '%s' for key '%s'"), value, conf_key);
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break;
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default:
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die("BUG: trailer.c: unhandled type %d", type);
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}
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return 0;
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}
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static const char *token_from_item(struct trailer_item *item, char *tok)
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{
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if (item->conf.key)
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return item->conf.key;
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if (tok)
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return tok;
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return item->conf.name;
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|
}
|
|
|
|
static int token_matches_item(const char *tok, struct trailer_item *item, int tok_len)
|
|
{
|
|
if (!strncasecmp(tok, item->conf.name, tok_len))
|
|
return 1;
|
|
return item->conf.key ? !strncasecmp(tok, item->conf.key, tok_len) : 0;
|
|
}
|
|
|
|
static int parse_trailer(struct strbuf *tok, struct strbuf *val,
|
|
const struct conf_info **conf, const char *trailer)
|
|
{
|
|
size_t len;
|
|
struct strbuf seps = STRBUF_INIT;
|
|
struct trailer_item *item;
|
|
int tok_len;
|
|
struct list_head *pos;
|
|
|
|
strbuf_addstr(&seps, separators);
|
|
strbuf_addch(&seps, '=');
|
|
len = strcspn(trailer, seps.buf);
|
|
strbuf_release(&seps);
|
|
if (len == 0) {
|
|
int l = strlen(trailer);
|
|
while (l > 0 && isspace(trailer[l - 1]))
|
|
l--;
|
|
return error(_("empty trailer token in trailer '%.*s'"), l, trailer);
|
|
}
|
|
if (len < strlen(trailer)) {
|
|
strbuf_add(tok, trailer, len);
|
|
strbuf_trim(tok);
|
|
strbuf_addstr(val, trailer + len + 1);
|
|
strbuf_trim(val);
|
|
} else {
|
|
strbuf_addstr(tok, trailer);
|
|
strbuf_trim(tok);
|
|
}
|
|
|
|
/* Lookup if the token matches something in the config */
|
|
tok_len = token_len_without_separator(tok->buf, tok->len);
|
|
*conf = &default_conf_info;
|
|
list_for_each(pos, &conf_head) {
|
|
item = list_entry(pos, struct trailer_item, list);
|
|
if (token_matches_item(tok->buf, item, tok_len)) {
|
|
char *tok_buf = strbuf_detach(tok, NULL);
|
|
*conf = &item->conf;
|
|
strbuf_addstr(tok, token_from_item(item, tok_buf));
|
|
free(tok_buf);
|
|
break;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void add_trailer_item(struct list_head *head, char *tok, char *val,
|
|
const struct conf_info *conf)
|
|
{
|
|
struct trailer_item *new = xcalloc(sizeof(*new), 1);
|
|
new->token = tok;
|
|
new->value = val;
|
|
duplicate_conf(&new->conf, conf);
|
|
list_add_tail(&new->list, head);
|
|
}
|
|
|
|
static void process_command_line_args(struct list_head *arg_head,
|
|
struct string_list *trailers)
|
|
{
|
|
struct string_list_item *tr;
|
|
struct trailer_item *item;
|
|
struct strbuf tok = STRBUF_INIT;
|
|
struct strbuf val = STRBUF_INIT;
|
|
const struct conf_info *conf;
|
|
struct list_head *pos;
|
|
|
|
/* Add a trailer item for each configured trailer with a command */
|
|
list_for_each(pos, &conf_head) {
|
|
item = list_entry(pos, struct trailer_item, list);
|
|
if (item->conf.command)
|
|
add_trailer_item(arg_head,
|
|
xstrdup(token_from_item(item, NULL)),
|
|
xstrdup(""),
|
|
&item->conf);
|
|
}
|
|
|
|
/* Add a trailer item for each trailer on the command line */
|
|
for_each_string_list_item(tr, trailers) {
|
|
if (!parse_trailer(&tok, &val, &conf, tr->string))
|
|
add_trailer_item(arg_head,
|
|
strbuf_detach(&tok, NULL),
|
|
strbuf_detach(&val, NULL),
|
|
conf);
|
|
}
|
|
}
|
|
|
|
static struct strbuf **read_input_file(const char *file)
|
|
{
|
|
struct strbuf **lines;
|
|
struct strbuf sb = STRBUF_INIT;
|
|
|
|
if (file) {
|
|
if (strbuf_read_file(&sb, file, 0) < 0)
|
|
die_errno(_("could not read input file '%s'"), file);
|
|
} else {
|
|
if (strbuf_read(&sb, fileno(stdin), 0) < 0)
|
|
die_errno(_("could not read from stdin"));
|
|
}
|
|
|
|
lines = strbuf_split(&sb, '\n');
|
|
|
|
strbuf_release(&sb);
|
|
|
|
return lines;
|
|
}
|
|
|
|
/*
|
|
* Return the (0 based) index of the start of the patch or the line
|
|
* count if there is no patch in the message.
|
|
*/
|
|
static int find_patch_start(struct strbuf **lines, int count)
|
|
{
|
|
int i;
|
|
|
|
/* Get the start of the patch part if any */
|
|
for (i = 0; i < count; i++) {
|
|
if (starts_with(lines[i]->buf, "---"))
|
|
return i;
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
/*
|
|
* Return the (0 based) index of the first trailer line or count if
|
|
* there are no trailers. Trailers are searched only in the lines from
|
|
* index (count - 1) down to index 0.
|
|
*/
|
|
static int find_trailer_start(struct strbuf **lines, int count)
|
|
{
|
|
int start, end_of_title, only_spaces = 1;
|
|
|
|
/* The first paragraph is the title and cannot be trailers */
|
|
for (start = 0; start < count; start++) {
|
|
if (lines[start]->buf[0] == comment_line_char)
|
|
continue;
|
|
if (contains_only_spaces(lines[start]->buf))
|
|
break;
|
|
}
|
|
end_of_title = start;
|
|
|
|
/*
|
|
* Get the start of the trailers by looking starting from the end
|
|
* for a line with only spaces before lines with one separator.
|
|
*/
|
|
for (start = count - 1; start >= end_of_title; start--) {
|
|
if (lines[start]->buf[0] == comment_line_char)
|
|
continue;
|
|
if (contains_only_spaces(lines[start]->buf)) {
|
|
if (only_spaces)
|
|
continue;
|
|
return start + 1;
|
|
}
|
|
if (strcspn(lines[start]->buf, separators) < lines[start]->len) {
|
|
if (only_spaces)
|
|
only_spaces = 0;
|
|
continue;
|
|
}
|
|
return count;
|
|
}
|
|
|
|
return only_spaces ? count : 0;
|
|
}
|
|
|
|
/* Get the index of the end of the trailers */
|
|
static int find_trailer_end(struct strbuf **lines, int patch_start)
|
|
{
|
|
struct strbuf sb = STRBUF_INIT;
|
|
int i, ignore_bytes;
|
|
|
|
for (i = 0; i < patch_start; i++)
|
|
strbuf_addbuf(&sb, lines[i]);
|
|
ignore_bytes = ignore_non_trailer(&sb);
|
|
strbuf_release(&sb);
|
|
for (i = patch_start - 1; i >= 0 && ignore_bytes > 0; i--)
|
|
ignore_bytes -= lines[i]->len;
|
|
|
|
return i + 1;
|
|
}
|
|
|
|
static int has_blank_line_before(struct strbuf **lines, int start)
|
|
{
|
|
for (;start >= 0; start--) {
|
|
if (lines[start]->buf[0] == comment_line_char)
|
|
continue;
|
|
return contains_only_spaces(lines[start]->buf);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void print_lines(FILE *outfile, struct strbuf **lines, int start, int end)
|
|
{
|
|
int i;
|
|
for (i = start; lines[i] && i < end; i++)
|
|
fprintf(outfile, "%s", lines[i]->buf);
|
|
}
|
|
|
|
static int process_input_file(FILE *outfile,
|
|
struct strbuf **lines,
|
|
struct list_head *head)
|
|
{
|
|
int count = 0;
|
|
int patch_start, trailer_start, trailer_end, i;
|
|
struct strbuf tok = STRBUF_INIT;
|
|
struct strbuf val = STRBUF_INIT;
|
|
const struct conf_info *conf;
|
|
|
|
/* Get the line count */
|
|
while (lines[count])
|
|
count++;
|
|
|
|
patch_start = find_patch_start(lines, count);
|
|
trailer_end = find_trailer_end(lines, patch_start);
|
|
trailer_start = find_trailer_start(lines, trailer_end);
|
|
|
|
/* Print lines before the trailers as is */
|
|
print_lines(outfile, lines, 0, trailer_start);
|
|
|
|
if (!has_blank_line_before(lines, trailer_start - 1))
|
|
fprintf(outfile, "\n");
|
|
|
|
/* Parse trailer lines */
|
|
for (i = trailer_start; i < trailer_end; i++) {
|
|
if (lines[i]->buf[0] != comment_line_char &&
|
|
!parse_trailer(&tok, &val, &conf, lines[i]->buf))
|
|
add_trailer_item(head,
|
|
strbuf_detach(&tok, NULL),
|
|
strbuf_detach(&val, NULL),
|
|
conf);
|
|
}
|
|
|
|
return trailer_end;
|
|
}
|
|
|
|
static void free_all(struct list_head *head)
|
|
{
|
|
struct list_head *pos, *p;
|
|
list_for_each_safe(pos, p, head) {
|
|
list_del(pos);
|
|
free_trailer_item(list_entry(pos, struct trailer_item, list));
|
|
}
|
|
}
|
|
|
|
static struct tempfile trailers_tempfile;
|
|
|
|
static FILE *create_in_place_tempfile(const char *file)
|
|
{
|
|
struct stat st;
|
|
struct strbuf template = STRBUF_INIT;
|
|
const char *tail;
|
|
FILE *outfile;
|
|
|
|
if (stat(file, &st))
|
|
die_errno(_("could not stat %s"), file);
|
|
if (!S_ISREG(st.st_mode))
|
|
die(_("file %s is not a regular file"), file);
|
|
if (!(st.st_mode & S_IWUSR))
|
|
die(_("file %s is not writable by user"), file);
|
|
|
|
/* Create temporary file in the same directory as the original */
|
|
tail = strrchr(file, '/');
|
|
if (tail != NULL)
|
|
strbuf_add(&template, file, tail - file + 1);
|
|
strbuf_addstr(&template, "git-interpret-trailers-XXXXXX");
|
|
|
|
xmks_tempfile_m(&trailers_tempfile, template.buf, st.st_mode);
|
|
strbuf_release(&template);
|
|
outfile = fdopen_tempfile(&trailers_tempfile, "w");
|
|
if (!outfile)
|
|
die_errno(_("could not open temporary file"));
|
|
|
|
return outfile;
|
|
}
|
|
|
|
void process_trailers(const char *file, int in_place, int trim_empty, struct string_list *trailers)
|
|
{
|
|
LIST_HEAD(head);
|
|
LIST_HEAD(arg_head);
|
|
struct strbuf **lines;
|
|
int trailer_end;
|
|
FILE *outfile = stdout;
|
|
|
|
/* Default config must be setup first */
|
|
git_config(git_trailer_default_config, NULL);
|
|
git_config(git_trailer_config, NULL);
|
|
|
|
lines = read_input_file(file);
|
|
|
|
if (in_place)
|
|
outfile = create_in_place_tempfile(file);
|
|
|
|
/* Print the lines before the trailers */
|
|
trailer_end = process_input_file(outfile, lines, &head);
|
|
|
|
process_command_line_args(&arg_head, trailers);
|
|
|
|
process_trailers_lists(&head, &arg_head);
|
|
|
|
print_all(outfile, &head, trim_empty);
|
|
|
|
free_all(&head);
|
|
|
|
/* Print the lines after the trailers as is */
|
|
print_lines(outfile, lines, trailer_end, INT_MAX);
|
|
|
|
if (in_place)
|
|
if (rename_tempfile(&trailers_tempfile, file))
|
|
die_errno(_("could not rename temporary file to %s"), file);
|
|
|
|
strbuf_list_free(lines);
|
|
}
|