aboutsummaryrefslogtreecommitdiffstatshomepage
path: root/ui-patch.c
blob: e60877d8ed2fcf2a6a76dab90d08b5eadcc9ea6f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
/* ui-patch.c: generate patch view
 *
 * Copyright (C) 2007 Lars Hjemli
 *
 * Licensed under GNU General Public License v2
 *   (see COPYING for full license text)
 */

#include "cgit.h"
#include "html.h"
#include "ui-shared.h"

static void print_line(char *line, int len)
{
	char c = line[len-1];

	line[len-1] = '\0';
	htmlf("%s\n", line);
	line[len-1] = c;
}

static void header(unsigned char *sha1, char *path1, int mode1,
		   unsigned char *sha2, char *path2, int mode2)
{
	char *abbrev1, *abbrev2;
	int subproject;

	subproject = (S_ISGITLINK(mode1) || S_ISGITLINK(mode2));
	htmlf("diff --git a/%s b/%s\n", path1, path2);

	if (is_null_sha1(sha1))
		path1 = "dev/null";
	if (is_null_sha1(sha2))
		path2 = "dev/null";

	if (mode1 == 0)
		htmlf("new file mode %.6o\n", mode2);

	if (mode2 == 0)
		htmlf("deleted file mode %.6o\n", mode1);

	if (!subproject) {
		abbrev1 = xstrdup(find_unique_abbrev(sha1, DEFAULT_ABBREV));
		abbrev2 = xstrdup(find_unique_abbrev(sha2, DEFAULT_ABBREV));
		htmlf("index %s..%s", abbrev1, abbrev2);
		free(abbrev1);
		free(abbrev2);
		if (mode1 != 0 && mode2 != 0) {
			htmlf(" %.6o", mode1);
			if (mode2 != mode1)
				htmlf("..%.6o", mode2);
		}
		htmlf("\n--- a/%s\n", path1);
		htmlf("+++ b/%s\n", path2);
	}
}

static void filepair_cb(struct diff_filepair *pair)
{
	header(pair->one->sha1, pair->one->path, pair->one->mode,
	       pair->two->sha1, pair->two->path, pair->two->mode);
	if (S_ISGITLINK(pair->one->mode) || S_ISGITLINK(pair->two->mode)) {
		if (S_ISGITLINK(pair->one->mode))
			print_line(fmt("-Subproject %s", sha1_to_hex(pair->one->sha1)), 52);
		if (S_ISGITLINK(pair->two->mode))
			print_line(fmt("+Subproject %s", sha1_to_hex(pair->two->sha1)), 52);
		return;
	}
	if (cgit_diff_files(pair->one->sha1, pair->two->sha1, print_line))
		html("Error running diff");
}

void cgit_print_patch(char *hex)
{
	struct commit *commit;
	struct commitinfo *info;
	unsigned char sha1[20], old_sha1[20];
	char *patchname;

	if (!hex)
		hex = ctx.qry.head;

	if (get_sha1(hex, sha1)) {
		cgit_print_error(fmt("Bad object id: %s", hex));
		return;
	}
	commit = lookup_commit_reference(sha1);
	if (!commit) {
		cgit_print_error(fmt("Bad commit reference: %s", hex));
		return;
	}
	info = cgit_parse_commit(commit);

	if (commit->parents && commit->parents->item)
		hashcpy(old_sha1, commit->parents->item->object.sha1);
	else
		hashclr(old_sha1);

	patchname = fmt("%s.patch", sha1_to_hex(sha1));
	ctx.page.mimetype = "text/plain";
	ctx.page.filename = patchname;
	cgit_print_http_headers(&ctx);
	htmlf("From %s Mon Sep 17 00:00:00 2001\n", sha1_to_hex(sha1));
	htmlf("From: %s%s\n", info->author, info->author_email);
	html("Date: ");
	cgit_print_date(info->author_date, "%a, %d  %b  %Y  %H:%M:%S  %z%n", ctx.cfg.local_time);
	htmlf("Subject: %s\n\n", info->subject);
	if (info->msg && *info->msg) {
		htmlf("%s", info->msg);
		if (info->msg[strlen(info->msg) - 1] != '\n')
			html("\n");
	}
	html("---\n");
	cgit_diff_tree(old_sha1, sha1, filepair_cb, NULL);
	html("--\n");
	htmlf("cgit %s\n", CGIT_VERSION);
	cgit_free_commitinfo(info);
}
/td></tr>\n"); } static void count_diff_lines(char *line, int len) { if (line && (len > 0)) { if (line[0] == '+') lines_added++; else if (line[0] == '-') lines_removed++; } } static void inspect_filepair(struct diff_filepair *pair) { int binary = 0; unsigned long old_size = 0; unsigned long new_size = 0; files++; lines_added = 0; lines_removed = 0; cgit_diff_files(pair->one->sha1, pair->two->sha1, &old_size, &new_size, &binary, count_diff_lines); if (files >= slots) { if (slots == 0) slots = 4; else slots = slots * 2; items = xrealloc(items, slots * sizeof(struct fileinfo)); } items[files-1].status = pair->status; hashcpy(items[files-1].old_sha1, pair->one->sha1); hashcpy(items[files-1].new_sha1, pair->two->sha1); items[files-1].old_mode = pair->one->mode; items[files-1].new_mode = pair->two->mode; items[files-1].old_path = xstrdup(pair->one->path); items[files-1].new_path = xstrdup(pair->two->path); items[files-1].added = lines_added; items[files-1].removed = lines_removed; items[files-1].old_size = old_size; items[files-1].new_size = new_size; items[files-1].binary = binary; if (lines_added + lines_removed > max_changes) max_changes = lines_added + lines_removed; total_adds += lines_added; total_rems += lines_removed; } void cgit_print_diffstat(const unsigned char *old_sha1, const unsigned char *new_sha1) { int i; html("<div class='diffstat-header'>"); cgit_diff_link("Diffstat", NULL, NULL, ctx.qry.head, ctx.qry.sha1, ctx.qry.sha2, NULL); html("</div>"); html("<table summary='diffstat' class='diffstat'>"); max_changes = 0; cgit_diff_tree(old_sha1, new_sha1, inspect_filepair, NULL); for(i = 0; i<files; i++) print_fileinfo(&items[i]); html("</table>"); html("<div class='diffstat-summary'>"); htmlf("%d files changed, %d insertions, %d deletions", files, total_adds, total_rems); html("</div>"); } /* * print a single line returned from xdiff */ static void print_line(char *line, int len) { char *class = "ctx"; char c = line[len-1]; if (line[0] == '+') class = "add"; else if (line[0] == '-') class = "del"; else if (line[0] == '@') class = "hunk"; htmlf("<div class='%s'>", class); line[len-1] = '\0'; html_txt(line); html("</div>"); line[len-1] = c; } static void header(unsigned char *sha1, char *path1, int mode1, unsigned char *sha2, char *path2, int mode2) { char *abbrev1, *abbrev2; int subproject; subproject = (S_ISGITLINK(mode1) || S_ISGITLINK(mode2)); html("<div class='head'>"); html("diff --git a/"); html_txt(path1); html(" b/"); html_txt(path2); if (is_null_sha1(sha1)) path1 = "dev/null"; if (is_null_sha1(sha2)) path2 = "dev/null"; if (mode1 == 0) htmlf("<br/>new file mode %.6o", mode2); if (mode2 == 0) htmlf("<br/>deleted file mode %.6o", mode1); if (!subproject) { abbrev1 = xstrdup(find_unique_abbrev(sha1, DEFAULT_ABBREV)); abbrev2 = xstrdup(find_unique_abbrev(sha2, DEFAULT_ABBREV)); htmlf("<br/>index %s..%s", abbrev1, abbrev2); free(abbrev1); free(abbrev2); if (mode1 != 0 && mode2 != 0) { htmlf(" %.6o", mode1); if (mode2 != mode1) htmlf("..%.6o", mode2); } html("<br/>--- a/"); if (mode1 != 0) cgit_tree_link(path1, NULL, NULL, ctx.qry.head, sha1_to_hex(old_rev_sha1), path1); else html_txt(path1); html("<br/>+++ b/"); if (mode2 != 0) cgit_tree_link(path2, NULL, NULL, ctx.qry.head, sha1_to_hex(new_rev_sha1), path2); else html_txt(path2); } html("</div>"); } static void filepair_cb(struct diff_filepair *pair) { unsigned long old_size = 0; unsigned long new_size = 0; int binary = 0; header(pair->one->sha1, pair->one->path, pair->one->mode, pair->two->sha1, pair->two->path, pair->two->mode); if (S_ISGITLINK(pair->one->mode) || S_ISGITLINK(pair->two->mode)) { if (S_ISGITLINK(pair->one->mode)) print_line(fmt("-Subproject %s", sha1_to_hex(pair->one->sha1)), 52); if (S_ISGITLINK(pair->two->mode)) print_line(fmt("+Subproject %s", sha1_to_hex(pair->two->sha1)), 52); return; } if (cgit_diff_files(pair->one->sha1, pair->two->sha1, &old_size, &new_size, &binary, print_line)) cgit_print_error("Error running diff"); if (binary) html("Binary files differ"); } void cgit_print_diff(const char *new_rev, const char *old_rev, const char *prefix) { enum object_type type; unsigned long size; struct commit *commit, *commit2; if (!new_rev) new_rev = ctx.qry.head; get_sha1(new_rev, new_rev_sha1); type = sha1_object_info(new_rev_sha1, &size); if (type == OBJ_BAD) { cgit_print_error(fmt("Bad object name: %s", new_rev)); return; } commit = lookup_commit_reference(new_rev_sha1); if (!commit || parse_commit(commit)) cgit_print_error(fmt("Bad commit: %s", sha1_to_hex(new_rev_sha1))); if (old_rev) get_sha1(old_rev, old_rev_sha1); else if (commit->parents && commit->parents->item) hashcpy(old_rev_sha1, commit->parents->item->object.sha1); else hashclr(old_rev_sha1); if (!is_null_sha1(old_rev_sha1)) { type = sha1_object_info(old_rev_sha1, &size); if (type == OBJ_BAD) { cgit_print_error(fmt("Bad object name: %s", sha1_to_hex(old_rev_sha1))); return; } commit2 = lookup_commit_reference(old_rev_sha1); if (!commit2 || parse_commit(commit2)) cgit_print_error(fmt("Bad commit: %s", sha1_to_hex(old_rev_sha1))); } cgit_print_diffstat(old_rev_sha1, new_rev_sha1); html("<table summary='diff' class='diff'>"); html("<tr><td>"); cgit_diff_tree(old_rev_sha1, new_rev_sha1, filepair_cb, prefix); html("</td></tr>"); html("</table>"); }