| /* |
| * 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; |
| } |