1/* ui-patch.c: generate patch view
 2 *
 3 * Copyright (C) 2007 Lars Hjemli
 4 *
 5 * Licensed under GNU General Public License v2
 6 *   (see COPYING for full license text)
 7 */
 8
 9#include "cgit.h"
10#include "ui-patch.h"
11#include "html.h"
12#include "ui-shared.h"
13
14void cgit_print_patch(char *hex, const char *prefix)
15{
16	struct commit *commit;
17	struct commitinfo *info;
18	unsigned char sha1[20], old_sha1[20];
19	char *patchname;
20
21	if (!hex)
22		hex = ctx.qry.head;
23
24	if (get_sha1(hex, sha1)) {
25		cgit_print_error("Bad object id: %s", hex);
26		return;
27	}
28	commit = lookup_commit_reference(sha1);
29	if (!commit) {
30		cgit_print_error("Bad commit reference: %s", hex);
31		return;
32	}
33	info = cgit_parse_commit(commit);
34
35	if (commit->parents && commit->parents->item)
36		hashcpy(old_sha1, commit->parents->item->object.sha1);
37	else
38		hashclr(old_sha1);
39
40	patchname = fmt("%s.patch", sha1_to_hex(sha1));
41	ctx.page.mimetype = "text/plain";
42	ctx.page.filename = patchname;
43	cgit_print_http_headers(&ctx);
44	htmlf("From %s Mon Sep 17 00:00:00 2001\n", sha1_to_hex(sha1));
45	htmlf("From: %s", info->author);
46	if (!ctx.cfg.noplainemail) {
47		htmlf(" %s", info->author_email);
48	}
49	html("\n");
50	html("Date: ");
51	cgit_print_date(info->author_date, "%a, %d %b %Y %H:%M:%S %z%n", ctx.cfg.local_time);
52	htmlf("Subject: %s\n\n", info->subject);
53	if (info->msg && *info->msg) {
54		htmlf("%s", info->msg);
55		if (info->msg[strlen(info->msg) - 1] != '\n')
56			html("\n");
57	}
58	html("---\n");
59	if (prefix)
60		htmlf("(limited to '%s')\n\n", prefix);
61	cgit_diff_tree(old_sha1, sha1, filepair_cb_raw, prefix, 0);
62	html("--\n");
63	htmlf("cgit %s\n", cgit_version);
64	cgit_free_commitinfo(info);
65}