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Commit | Line | Data |
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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 | int opt; | |
15 | ||
16 | setup_git_directory(); | |
17 | if (argc != 3 || get_sha1(argv[2], sha1)) | |
18 | usage("git-cat-file [-t|-s|-e|<type>] <sha1>"); | |
19 | ||
20 | opt = 0; | |
21 | if ( argv[1][0] == '-' ) { | |
22 | opt = argv[1][1]; | |
23 | if ( !opt || argv[1][2] ) | |
24 | opt = -1; /* Not a single character option */ | |
25 | } | |
26 | ||
27 | buf = NULL; | |
28 | switch (opt) { | |
29 | case 't': | |
30 | if (!sha1_object_info(sha1, type, NULL)) { | |
31 | printf("%s\n", type); | |
32 | return 0; | |
33 | } | |
34 | break; | |
35 | ||
36 | case 's': | |
37 | if (!sha1_object_info(sha1, type, &size)) { | |
38 | printf("%lu\n", size); | |
39 | return 0; | |
40 | } | |
41 | break; | |
42 | ||
43 | case 'e': | |
44 | return !has_sha1_file(sha1); | |
45 | ||
46 | case 0: | |
47 | buf = read_object_with_reference(sha1, argv[1], &size, NULL); | |
48 | break; | |
49 | ||
50 | default: | |
51 | die("git-cat-file: unknown option: %s\n", argv[1]); | |
52 | } | |
53 | ||
54 | if (!buf) | |
55 | die("git-cat-file %s: bad file", argv[2]); | |
56 | ||
57 | while (size > 0) { | |
58 | long ret = xwrite(1, buf, size); | |
59 | if (ret < 0) { | |
60 | /* Ignore epipe */ | |
61 | if (errno == EPIPE) | |
62 | break; | |
63 | die("git-cat-file: %s", strerror(errno)); | |
64 | } else if (!ret) { | |
65 | die("git-cat-file: disk full?"); | |
66 | } | |
67 | size -= ret; | |
68 | buf += ret; | |
69 | } | |
70 | return 0; | |
71 | } |