hash-object.c

   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
   9 static 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
  24 static const char *hash_object_usage =
  25 "git-hash-object [-t <type>] [-w] <file>...";
  26
  27 int main(int argc, char **argv)
  28 {
  29         int i;
  30         const char *type = "blob";
  31         int write_object = 0;
  32
  33         for (i = 1 ; i < argc; i++) {
  34                 if (!strcmp(argv[i], "-t")) {
  35                         if (argc <= ++i)
  36                                 die(hash_object_usage);
  37                         type = argv[i];
  38                 }
  39                 else if (!strcmp(argv[i], "-w"))
  40                         write_object = 1;
  41                 else
  42                         hash_object(argv[i], type, write_object);
  43         }
  44         return 0;
  45 }