environment.con commit setup_git_directory: make sure GIT_DIR is a valid repository. (5e7bfe2)
   1/*
   2 * We put all the git config variables in this same object
   3 * file, so that programs can link against the config parser
   4 * without having to link against all the rest of git.
   5 *
   6 * In particular, no need to bring in libz etc unless needed,
   7 * even if you might want to know where the git directory etc
   8 * are.
   9 */
  10#include "cache.h"
  11
  12char git_default_email[MAX_GITNAME];
  13char git_default_name[MAX_GITNAME];
  14int trust_executable_bit = 1;
  15int only_use_symrefs = 0;
  16
  17static char *git_dir, *git_object_dir, *git_index_file, *git_refs_dir,
  18        *git_graft_file;
  19static void setup_git_env(void)
  20{
  21        git_dir = getenv(GIT_DIR_ENVIRONMENT);
  22        if (!git_dir)
  23                git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
  24        git_object_dir = getenv(DB_ENVIRONMENT);
  25        if (!git_object_dir) {
  26                git_object_dir = xmalloc(strlen(git_dir) + 9);
  27                sprintf(git_object_dir, "%s/objects", git_dir);
  28        }
  29        git_refs_dir = xmalloc(strlen(git_dir) + 6);
  30        sprintf(git_refs_dir, "%s/refs", git_dir);
  31        git_index_file = getenv(INDEX_ENVIRONMENT);
  32        if (!git_index_file) {
  33                git_index_file = xmalloc(strlen(git_dir) + 7);
  34                sprintf(git_index_file, "%s/index", git_dir);
  35        }
  36        git_graft_file = getenv(GRAFT_ENVIRONMENT);
  37        if (!git_graft_file)
  38                git_graft_file = strdup(git_path("info/grafts"));
  39}
  40
  41char *get_git_dir(void)
  42{
  43        if (!git_dir)
  44                setup_git_env();
  45        return git_dir;
  46}
  47
  48char *get_object_directory(void)
  49{
  50        if (!git_object_dir)
  51                setup_git_env();
  52        return git_object_dir;
  53}
  54
  55char *get_refs_directory(void)
  56{
  57        if (!git_refs_dir)
  58                setup_git_env();
  59        return git_refs_dir;
  60}
  61
  62char *get_index_file(void)
  63{
  64        if (!git_index_file)
  65                setup_git_env();
  66        return git_index_file;
  67}
  68
  69char *get_graft_file(void)
  70{
  71        if (!git_graft_file)
  72                setup_git_env();
  73        return git_graft_file;
  74}
  75
  76