Andrew's git - gitweb.git/blob

   1/*
   2 * GIT - The information manager from hell
   3 *
   4 * Copyright (C) Linus Torvalds, 2005
   5 * Copyright (C) Junio C Hamano, 2005 
   6 */
   7#include "cache.h"
   8
   9static void hash_object(const char *path, const char *type, int write_object)
  10{
  11        int fd;
  12        struct stat st;
  13        unsigned char sha1[20];
  14        fd = open(path, O_RDONLY);
  15        if (fd < 0 ||
  16            fstat(fd, &st) < 0 ||
  17            index_fd(sha1, fd, &st, write_object, type))
  18                die(write_object
  19                    ? "Unable to add %s to database"
  20                    : "Unable to hash %s", path);
  21        printf("%s\n", sha1_to_hex(sha1));
  22}
  23
  24static const char hash_object_usage[] =
  25"git-hash-object [-t <type>] [-w] <file>...";
  26
  27int main(int argc, char **argv)
  28{
  29        int i;
  30        const char *type = "blob";
  31        int write_object = 0;
  32        const char *prefix = NULL;
  33        int prefix_length = -1;
  34
  35        for (i = 1 ; i < argc; i++) {
  36                if (!strcmp(argv[i], "-t")) {
  37                        if (argc <= ++i)
  38                                die(hash_object_usage);
  39                        type = argv[i];
  40                }
  41                else if (!strcmp(argv[i], "-w")) {
  42                        if (prefix_length < 0) {
  43                                prefix = setup_git_directory();
  44                                prefix_length = prefix ? strlen(prefix) : 0;
  45                        }
  46                        write_object = 1;
  47                }
  48                else {
  49                        const char *arg = argv[i];
  50                        if (0 <= prefix_length)
  51                                arg = prefix_filename(prefix, prefix_length,
  52                                                      arg);
  53                        hash_object(arg, type, write_object);
  54                }
  55        }
  56        return 0;
  57}