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
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
|
/* ui-diff.c: show diff between two blobs
*
* Copyright (C) 2006 Lars Hjemli
*
* Licensed under GNU General Public License v2
* (see COPYING for full license text)
*/
#include "cgit.h"
unsigned char old_rev_sha1[20];
unsigned char new_rev_sha1[20];
/*
* 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 (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)
{
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))
cgit_print_error("Error running diff");
}
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;
}
if (type != OBJ_COMMIT) {
cgit_print_error(fmt("Unhandled object type: %s",
typename(type)));
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)));
}
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>");
}
|