Function log_write_email_headers

log-tree.c:493–562

}

void log_write_email_headers(struct rev_info *opt, struct commit *commit,
			     char **extra_headers_p,
			     int *need_8bit_cte_p,
			     int maybe_multipart)
{
	struct strbuf headers = STRBUF_INIT;
	const char *name = oid_to_hex(opt->zero_commit ?
				      null_oid(the_hash_algo) : &commit->object.oid);

	*need_8bit_cte_p = 0; /* unknown */

	if (opt->extra_headers && *opt->extra_headers)
		strbuf_addstr(&headers, opt->extra_headers);

	fprintf(opt->diffopt.file, "From %s Mon Sep 17 00:00:00 2001\n", name);
	graph_show_oneline(opt->graph);
	if (opt->message_id) {
		fprintf(opt->diffopt.file, "Message-ID: <%s>\n", opt->message_id);
		graph_show_oneline(opt->graph);
	}
	if (opt->ref_message_ids && opt->ref_message_ids->nr > 0) {
		int i, n;
		n = opt->ref_message_ids->nr;
		fprintf(opt->diffopt.file, "In-Reply-To: <%s>\n", opt->ref_message_ids->items[n-1].string);
		for (i = 0; i < n; i++)
			fprintf(opt->diffopt.file, "%s<%s>\n", (i > 0 ? "\t" : "References: "),
			       opt->ref_message_ids->items[i].string);
		graph_show_oneline(opt->graph);
	}
	if (opt->mime_boundary && maybe_multipart) {
		static struct strbuf buffer = STRBUF_INIT;
		struct strbuf filename =  STRBUF_INIT;
		*need_8bit_cte_p = -1; /* NEVER */

		strbuf_reset(&buffer);

		strbuf_addf(&headers,
			 "MIME-Version: 1.0\n"
			 "Content-Type: multipart/mixed;"
			 " boundary=\"%s%s\"\n"
			 "\n"
			 "This is a multi-part message in MIME "
			 "format.\n"
			 "--%s%s\n"
			 "Content-Type: text/plain; "
			 "charset=UTF-8; format=fixed\n"
			 "Content-Transfer-Encoding: 8bit\n\n",
			 mime_boundary_leader, opt->mime_boundary,
			 mime_boundary_leader, opt->mime_boundary);

		if (opt->numbered_files)
			strbuf_addf(&filename, "%d", opt->nr);
		else
			fmt_output_commit(&filename, commit, opt);
		strbuf_addf(&buffer,
			 "\n--%s%s\n"
			 "Content-Type: text/x-patch;"
			 " name=\"%s\"\n"