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
|
/* 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"
/*
* 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_ISDIRLNK(mode1) || S_ISDIRLNK(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/");
html_txt(path1);
html("<br/>+++ b/");
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_ISDIRLNK(pair->one->mode) || S_ISDIRLNK(pair->two->mode)) {
if (S_ISDIRLNK(pair->one->mode))
print_line(fmt("-Subproject %s", sha1_to_hex(pair->one->sha1)), 52);
if (S_ISDIRLNK(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 *head, const char *old_hex, const char *new_hex, char *path)
{
unsigned char sha1[20], sha2[20];
enum object_type type;
unsigned long size;
struct commit *commit;
if (head && !old_hex && !new_hex) {
get_sha1(head, sha1);
commit = lookup_commit_reference(sha1);
if (commit && !parse_commit(commit)) {
html("<table class='diff'>");
html("<tr><td>");
cgit_diff_commit(commit, filepair_cb);
html("</td></tr>");
html("</table>");
}
return;
}
get_sha1(old_hex, sha1);
get_sha1(new_hex, sha2);
type = sha1_object_info(sha1, &size);
if (type == OBJ_BAD) {
type = sha1_object_info(sha2, &size);
if (type == OBJ_BAD) {
cgit_print_error(fmt("Bad object names: %s, %s", old_hex, new_hex));
return;
}
}
html("<table class='diff'>");
switch(type) {
case OBJ_BLOB:
html("<tr><td>");
header(sha1, path, 0644, sha2, path, 0644);
if (cgit_diff_files(sha1, sha2, print_line))
cgit_print_error("Error running diff");
html("</td></tr>");
break;
case OBJ_TREE:
cgit_diff_tree(sha1, sha2, filepair_cb);
break;
default:
cgit_print_error(fmt("Unhandled object type: %s",
typename(type)));
break;
}
html("</table>");
}
|
