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 void hash_stdin(const char *type, int write_object)
  25{
  26        unsigned char sha1[20];
  27        if (index_pipe(sha1, 0, type, write_object))
  28                die("Unable to add stdin to database");
  29        printf("%s\n", sha1_to_hex(sha1));
  30}
  31
  32static const char hash_object_usage[] =
  33"git-hash-object [-t <type>] [-w] [--stdin] <file>...";
  34
  35int main(int argc, char **argv)
  36{
  37        int i;
  38        const char *type = "blob";
  39        int write_object = 0;
  40        const char *prefix = NULL;
  41        int prefix_length = -1;
  42        int no_more_flags = 0;
  43
  44        for (i = 1 ; i < argc; i++) {
  45                if (!no_more_flags && argv[i][0] == '-') {
  46                        if (!strcmp(argv[i], "-t")) {
  47                                if (argc <= ++i)
  48                                        die(hash_object_usage);
  49                                type = argv[i];
  50                        }
  51                        else if (!strcmp(argv[i], "-w")) {
  52                                if (prefix_length < 0) {
  53                                        prefix = setup_git_directory();
  54                                        prefix_length =
  55                                                prefix ? strlen(prefix) : 0;
  56                                }
  57                                write_object = 1;
  58                        }
  59                        else if (!strcmp(argv[i], "--")) {
  60                                no_more_flags = 1;
  61                        }
  62                        else if (!strcmp(argv[i], "--help"))
  63                                usage(hash_object_usage);
  64                        else if (!strcmp(argv[i], "--stdin")) {
  65                                hash_stdin(type, write_object);
  66                        }
  67                        else
  68                                die(hash_object_usage);
  69                } 
  70                else {
  71                        const char *arg = argv[i];
  72                        if (0 <= prefix_length)
  73                                arg = prefix_filename(prefix, prefix_length,
  74                                                      arg);
  75                        hash_object(arg, type, write_object);
  76                        no_more_flags = 1;
  77                }
  78        }
  79        return 0;
  80}