[PATCH] Retire git-parse-remote.
[git] / cat-file.c
1 /*
2  * GIT - The information manager from hell
3  *
4  * Copyright (C) Linus Torvalds, 2005
5  */
6 #include "cache.h"
7
8 int main(int argc, char **argv)
9 {
10         unsigned char sha1[20];
11         char type[20];
12         void *buf;
13         unsigned long size;
14
15         if (argc != 3 || get_sha1(argv[2], sha1))
16                 usage("git-cat-file [-t | -s | <type>] <sha1>");
17
18         if (!strcmp("-t", argv[1]) || !strcmp("-s", argv[1])) {
19                 if (!sha1_object_info(sha1, type,
20                                       argv[1][1] == 's' ? &size : NULL)) {
21                         switch (argv[1][1]) {
22                         case 't':
23                                 printf("%s\n", type);
24                                 break;
25                         case 's':
26                                 printf("%lu\n", size);
27                                 break;
28                         }
29                         return 0;
30                 }
31                 buf = NULL;
32         } else {
33                 buf = read_object_with_reference(sha1, argv[1], &size, NULL);
34         }
35
36         if (!buf)
37                 die("git-cat-file %s: bad file", argv[2]);
38
39         while (size > 0) {
40                 long ret = write(1, buf, size);
41                 if (ret < 0) {
42                         if (errno == EAGAIN)
43                                 continue;
44                         /* Ignore epipe */
45                         if (errno == EPIPE)
46                                 break;
47                         die("git-cat-file: %s", strerror(errno));
48                 } else if (!ret) {
49                         die("git-cat-file: disk full?");
50                 }
51                 size -= ret;
52                 buf += ret;
53         }
54         return 0;
55 }