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
|
/*
* GIT - The information manager from hell
*
* Copyright (C) Linus Torvalds, 2005
*/
#include "cache.h"
int main(int argc, char **argv)
{
unsigned char sha1[20];
char type[20];
void *buf;
unsigned long size;
int opt;
setup_git_directory();
if (argc != 3 || get_sha1(argv[2], sha1))
usage("git-cat-file [-t|-s|-e|<type>] <sha1>");
opt = 0;
if ( argv[1][0] == '-' ) {
opt = argv[1][1];
if ( !opt || argv[1][2] )
opt = -1; /* Not a single character option */
}
buf = NULL;
switch (opt) {
case 't':
if (!sha1_object_info(sha1, type, NULL)) {
printf("%s\n", type);
return 0;
}
break;
case 's':
if (!sha1_object_info(sha1, type, &size)) {
printf("%lu\n", size);
return 0;
}
break;
case 'e':
return !has_sha1_file(sha1);
case 0:
buf = read_object_with_reference(sha1, argv[1], &size, NULL);
break;
default:
die("git-cat-file: unknown option: %s\n", argv[1]);
}
if (!buf)
die("git-cat-file %s: bad file", argv[2]);
while (size > 0) {
long ret = write(1, buf, size);
if (ret < 0) {
if (errno == EAGAIN)
continue;
/* Ignore epipe */
if (errno == EPIPE)
break;
die("git-cat-file: %s", strerror(errno));
} else if (!ret) {
die("git-cat-file: disk full?");
}
size -= ret;
buf += ret;
}
return 0;
}
|
