Andrew's git / gitweb.git /
0076fc5b20a71b4d32add42b8dcb76a22eea4ef6
   1/*
   2 * GIT - The information manager from hell
   3 *
   4 * Copyright (C) Linus Torvalds, 2005
   5 */
   6#include "cache.h"
   7
   8int 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 | tagname] <sha1>");
  17
  18        if (!strcmp("-t", argv[1])) {
  19                if (!sha1_object_info(sha1, type, &size)) {
  20                        printf("%s\n", type);
  21                        return 0;
  22                }
  23                buf = NULL;
  24        } else {
  25                buf = read_object_with_reference(sha1, argv[1], &size, NULL);
  26        }
  27
  28        if (!buf)
  29                die("git-cat-file %s: bad file", argv[2]);
  30
  31        while (size > 0) {
  32                long ret = write(1, buf, size);
  33                if (ret < 0) {
  34                        if (errno == EAGAIN)
  35                                continue;
  36                        /* Ignore epipe */
  37                        if (errno == EPIPE)
  38                                break;
  39                        die("git-cat-file: %s", strerror(errno));
  40                } else if (!ret) {
  41                        die("git-cat-file: disk full?");
  42                }
  43                size -= ret;
  44                buf += ret;
  45        }
  46        return 0;
  47}