Andrew's git / gitweb.git /
997343e133b42a08059584766e2737632c9c044e
   1/*
   2 * GIT - The information manager from hell
   3 *
   4 * Copyright (C) Linus Torvalds, 2005
   5 */
   6#include "cache.h"
   7
   8static int unpack(unsigned char *sha1)
   9{
  10        void *buffer;
  11        unsigned long size;
  12        char type[20];
  13
  14        buffer = read_sha1_file(sha1, type, &size);
  15        if (!buffer)
  16                usage("unable to read sha1 file");
  17        if (strcmp(type, "tree"))
  18                usage("expected a 'tree' node");
  19        while (size) {
  20                int len = strlen(buffer)+1;
  21                unsigned char *sha1 = buffer + len;
  22                char *path = strchr(buffer, ' ')+1;
  23                unsigned int mode;
  24                if (size < len + 20 || sscanf(buffer, "%o", &mode) != 1)
  25                        usage("corrupt 'tree' file");
  26                buffer = sha1 + 20;
  27                size -= len + 20;
  28                printf("%o %s (%s)\n", mode, path, sha1_to_hex(sha1));
  29        }
  30        return 0;
  31}
  32
  33int main(int argc, char **argv)
  34{
  35        int fd;
  36        unsigned char sha1[20];
  37
  38        if (argc != 2)
  39                usage("read-tree <key>");
  40        if (get_sha1_hex(argv[1], sha1) < 0)
  41                usage("read-tree <key>");
  42        sha1_file_directory = getenv(DB_ENVIRONMENT);
  43        if (!sha1_file_directory)
  44                sha1_file_directory = DEFAULT_DB_ENVIRONMENT;
  45        if (unpack(sha1) < 0)
  46                usage("unpack failed");
  47        return 0;
  48}