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
|
/*
* GIT - The information manager from hell
*
* Copyright (C) Linus Torvalds, 2005
*/
#include "cache.h"
#include "diff.h"
static const char *diff_files_usage =
"git-diff-files [-p] [-q] [-r] [-z] [-M] [-C] [-R] [-S<string>] [paths...]";
static int diff_output_format = DIFF_FORMAT_HUMAN;
static int detect_rename = 0;
static int reverse_diff = 0;
static int diff_score_opt = 0;
static const char *pickaxe = NULL;
static int silent = 0;
static int matches_pathspec(struct cache_entry *ce, char **spec, int cnt)
{
int i;
int namelen = ce_namelen(ce);
for (i = 0; i < cnt; i++) {
int speclen = strlen(spec[i]);
if (! strncmp(spec[i], ce->name, speclen) &&
speclen <= namelen &&
(ce->name[speclen] == 0 ||
ce->name[speclen] == '/'))
return 1;
}
return 0;
}
static void show_unmerge(const char *path)
{
diff_unmerge(path);
}
static void show_file(int pfx, struct cache_entry *ce)
{
diff_addremove(pfx, ntohl(ce->ce_mode), ce->sha1, ce->name, NULL);
}
static void show_modified(int oldmode, int mode,
const unsigned char *old_sha1, const unsigned char *sha1,
char *path)
{
diff_change(oldmode, mode, old_sha1, sha1, path, NULL);
}
int main(int argc, char **argv)
{
static const unsigned char null_sha1[20] = { 0, };
int entries = read_cache();
int i;
while (1 < argc && argv[1][0] == '-') {
if (!strcmp(argv[1], "-p"))
diff_output_format = DIFF_FORMAT_PATCH;
else if (!strcmp(argv[1], "-q"))
silent = 1;
else if (!strcmp(argv[1], "-r"))
; /* no-op */
else if (!strcmp(argv[1], "-s"))
; /* no-op */
else if (!strcmp(argv[1], "-z"))
diff_output_format = DIFF_FORMAT_MACHINE;
else if (!strcmp(argv[1], "-R"))
reverse_diff = 1;
else if (!strcmp(argv[1], "-S"))
pickaxe = argv[1] + 2;
else if (!strncmp(argv[1], "-M", 2)) {
diff_score_opt = diff_scoreopt_parse(argv[1]);
detect_rename = 1;
}
else if (!strncmp(argv[1], "-C", 2)) {
diff_score_opt = diff_scoreopt_parse(argv[1]);
detect_rename = 2;
}
else
usage(diff_files_usage);
argv++; argc--;
}
/* At this point, if argc == 1, then we are doing everything.
* Otherwise argv[1] .. argv[argc-1] have the explicit paths.
*/
if (entries < 0) {
perror("read_cache");
exit(1);
}
diff_setup(reverse_diff, diff_output_format);
for (i = 0; i < entries; i++) {
struct stat st;
unsigned int oldmode, mode;
struct cache_entry *ce = active_cache[i];
int changed;
if (1 < argc &&
! matches_pathspec(ce, argv+1, argc-1))
continue;
if (ce_stage(ce)) {
show_unmerge(ce->name);
while (i < entries &&
!strcmp(ce->name, active_cache[i]->name))
i++;
i--; /* compensate for loop control increments */
continue;
}
if (lstat(ce->name, &st) < 0) {
if (errno != ENOENT && errno != ENOTDIR) {
perror(ce->name);
continue;
}
if (silent)
continue;
show_file('-', ce);
continue;
}
changed = ce_match_stat(ce, &st);
if (!changed && detect_rename < 2)
continue;
oldmode = ntohl(ce->ce_mode);
mode = (S_ISLNK(st.st_mode) ? S_IFLNK :
S_IFREG | ce_permissions(st.st_mode));
show_modified(oldmode, mode, ce->sha1, null_sha1,
ce->name);
}
if (detect_rename)
diff_detect_rename(detect_rename, diff_score_opt);
if (pickaxe)
diff_pickaxe(pickaxe);
diff_flush(NULL, 0);
return 0;
}
|
