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Commit | Line | Data |
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8bc9a0c7 LT |
1 | /* |
2 | * GIT - The information manager from hell | |
3 | * | |
4 | * Copyright (C) Linus Torvalds, 2005 | |
5 | */ | |
e83c5163 LT |
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; | |
e83c5163 | 14 | |
bf0c6e83 | 15 | if (argc != 3 || get_sha1_hex(argv[2], sha1)) |
2de381f9 | 16 | usage("cat-file [-t | tagname] <sha1>"); |
e83c5163 | 17 | buf = read_sha1_file(sha1, type, &size); |
2de381f9 PB |
18 | if (!buf) |
19 | die("cat-file %s: bad file", argv[2]); | |
bf0c6e83 LT |
20 | if (!strcmp("-t", argv[1])) { |
21 | buf = type; | |
22 | size = strlen(type); | |
23 | type[size] = '\n'; | |
24 | size++; | |
25 | } else if (strcmp(type, argv[1])) { | |
2de381f9 | 26 | die("cat-file %s: bad tag", argv[2]); |
bf0c6e83 LT |
27 | } |
28 | ||
29 | while (size > 0) { | |
30 | long ret = write(1, buf, size); | |
31 | if (ret < 0) { | |
32 | if (errno == EAGAIN) | |
33 | continue; | |
34 | /* Ignore epipe */ | |
35 | if (errno == EPIPE) | |
36 | break; | |
2de381f9 PB |
37 | die("cat-file: %s", strerror(errno)); |
38 | } else if (!ret) { | |
39 | die("cat-file: disk full?"); | |
bf0c6e83 LT |
40 | } |
41 | size -= ret; | |
42 | buf += ret; | |
43 | } | |
44 | return 0; | |
e83c5163 | 45 | } |