}
/*
- * Return the position of the start of the patch or the length of str if there
- * is no patch in the message.
+ * Find the end of the log message as an offset from the start of the input
+ * (where callers of this function are interested in looking for a trailers
+ * block in the same input). We have to consider two categories of content that
+ * can come at the end of the input which we want to ignore (because they don't
+ * belong in the log message):
+ *
+ * (1) the "patch part" which begins with a "---" divider and has patch
+ * information (like the output of git-format-patch), and
+ *
+ * (2) any trailing comment lines, blank lines like in the output of "git
+ * commit -v", or stuff below the "cut" (scissor) line.
+ *
+ * As a formula, the situation looks like this:
+ *
+ * INPUT = LOG MESSAGE + IGNORED
+ *
+ * where IGNORED can be either of the two categories described above. It may be
+ * that there is nothing to ignore. Now it may be the case that the LOG MESSAGE
+ * contains a trailer block, but that's not the concern of this function.
*/
-static size_t find_patch_start(const char *str)
+static size_t find_end_of_log_message(const char *input, int no_divider)
{
+ size_t end;
const char *s;
- for (s = str; *s; s = next_line(s)) {
+ /* Assume the naive end of the input is already what we want. */
+ end = strlen(input);
+
+ if (no_divider)
+ return end;
+
+ /* Optionally skip over any patch part ("---" line and below). */
+ for (s = input; *s; s = next_line(s)) {
const char *v;
- if (skip_prefix(s, "---", &v) && isspace(*v))
- return s - str;
+ if (skip_prefix(s, "---", &v) && isspace(*v)) {
+ end = s - input;
+ break;
+ }
}
- return s - str;
+ /* Skip over other ignorable bits. */
+ return end - ignored_log_message_bytes(input, end);
}
/*
* Return the position of the first trailer line or len if there are no
* trailers.
*/
-static size_t find_trailer_start(const char *buf, size_t len)
+static size_t find_trailer_block_start(const char *buf, size_t len)
{
const char *s;
ssize_t end_of_title, l;
return len;
}
-/* Return the position of the end of the trailers. */
-static size_t find_trailer_end(const char *buf, size_t len)
-{
- return len - ignore_non_trailer(buf, len);
-}
-
static int ends_with_blank_line(const char *buf, size_t len)
{
ssize_t ll = last_line(buf, len);
LIST_HEAD(head);
struct strbuf sb = STRBUF_INIT;
struct trailer_info info;
- size_t trailer_end;
FILE *outfile = stdout;
ensure_configured();
outfile = create_in_place_tempfile(file);
parse_trailers(&info, sb.buf, &head, opts);
- trailer_end = info.trailer_end - sb.buf;
/* Print the lines before the trailers */
if (!opts->only_trailers)
- fwrite(sb.buf, 1, info.trailer_start - sb.buf, outfile);
+ fwrite(sb.buf, 1, info.trailer_block_start, outfile);
if (!opts->only_trailers && !info.blank_line_before_trailer)
fprintf(outfile, "\n");
/* Print the lines after the trailers as is */
if (!opts->only_trailers)
- fwrite(sb.buf + trailer_end, 1, sb.len - trailer_end, outfile);
+ fwrite(sb.buf + info.trailer_block_end, 1, sb.len - info.trailer_block_end, outfile);
if (opts->in_place)
if (rename_tempfile(&trailers_tempfile, file))
void trailer_info_get(struct trailer_info *info, const char *str,
const struct process_trailer_options *opts)
{
- int patch_start, trailer_end, trailer_start;
+ 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;
ensure_configured();
- if (opts->no_divider)
- patch_start = strlen(str);
- else
- patch_start = find_patch_start(str);
-
- trailer_end = find_trailer_end(str, patch_start);
- trailer_start = find_trailer_start(str, trailer_end);
+ 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_start,
- trailer_end - trailer_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++) {
strbuf_list_free(trailer_lines);
info->blank_line_before_trailer = ends_with_blank_line(str,
- trailer_start);
- info->trailer_start = str + trailer_start;
- info->trailer_end = str + trailer_end;
+ 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;
}
static void format_trailer_info(struct strbuf *out,
const struct trailer_info *info,
+ const char *msg,
const struct process_trailer_options *opts)
{
size_t origlen = out->len;
if (!opts->only_trailers && !opts->unfold && !opts->filter &&
!opts->separator && !opts->key_only && !opts->value_only &&
!opts->key_value_separator) {
- strbuf_add(out, info->trailer_start,
- info->trailer_end - info->trailer_start);
+ strbuf_add(out, msg + info->trailer_block_start,
+ info->trailer_block_end - info->trailer_block_start);
return;
}
struct trailer_info info;
trailer_info_get(&info, msg, opts);
- format_trailer_info(out, &info, opts);
+ format_trailer_info(out, &info, msg, opts);
trailer_info_release(&info);
}
projects / thirdparty / git.git / blobdiff