static int reopen_stdout(struct commit *commit, const char *subject,
struct rev_info *rev, int quiet)
{
struct strbuf filename = STRBUF_INIT;
int suffix_len = strlen(rev->patch_suffix) + 1;
if (output_directory) {
strbuf_addstr(&filename, output_directory);
if (filename.len >=
PATH_MAX - FORMAT_PATCH_NAME_MAX - suffix_len)
return error(_("name of output directory is too long"));
if (filename.buf[filename.len - 1] != '/')
strbuf_addch(&filename, '/');
}
if (rev->numbered_files)
strbuf_addf(&filename, "%d", rev->nr);
else if (commit)
fmt_output_commit(&filename, commit, rev);
else
fmt_output_subject(&filename, subject, rev);
if (!quiet)
fprintf(realstdout, "%s\n", filename.buf + outdir_offset);
if (freopen(filename.buf, "w", stdout) == NULL)
return error(_("Cannot open patch file %s"), filename.buf);
strbuf_release(&filename);
return 0;
}
void fmt_output_commit(struct strbuf *filename,
struct commit *commit,
struct rev_info *info)
{
struct pretty_print_context ctx = {0};
struct strbuf subject = STRBUF_INIT;
format_commit_message(commit, "%f", &subject, &ctx);
fmt_output_subject(filename, subject.buf, info);
strbuf_release(&subject);
}
