environment.c

   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
  12 char git_default_email[MAX_GITNAME];
  13 char git_default_name[MAX_GITNAME];
  14 int trust_executable_bit = 1;
  15 int assume_unchanged = 0;
  16 int only_use_symrefs = 0;
  17 int repository_format_version = 0;
  18 char git_commit_encoding[MAX_ENCODING_LENGTH] = "utf-8";
  19 int shared_repository = 0;
  20
  21 static char *git_dir, *git_object_dir, *git_index_file, *git_refs_dir,
  22         *git_graft_file;
  23 static void setup_git_env(void)
  24 {
  25         git_dir = getenv(GIT_DIR_ENVIRONMENT);
  26         if (!git_dir)
  27                 git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
  28         git_object_dir = getenv(DB_ENVIRONMENT);
  29         if (!git_object_dir) {
  30                 git_object_dir = xmalloc(strlen(git_dir) + 9);
  31                 sprintf(git_object_dir, "%s/objects", git_dir);
  32         }
  33         git_refs_dir = xmalloc(strlen(git_dir) + 6);
  34         sprintf(git_refs_dir, "%s/refs", git_dir);
  35         git_index_file = getenv(INDEX_ENVIRONMENT);
  36         if (!git_index_file) {
  37                 git_index_file = xmalloc(strlen(git_dir) + 7);
  38                 sprintf(git_index_file, "%s/index", git_dir);
  39         }
  40         git_graft_file = getenv(GRAFT_ENVIRONMENT);
  41         if (!git_graft_file)
  42                 git_graft_file = strdup(git_path("info/grafts"));
  43 }
  44
  45 char *get_git_dir(void)
  46 {
  47         if (!git_dir)
  48                 setup_git_env();
  49         return git_dir;
  50 }
  51
  52 char *get_object_directory(void)
  53 {
  54         if (!git_object_dir)
  55                 setup_git_env();
  56         return git_object_dir;
  57 }
  58
  59 char *get_refs_directory(void)
  60 {
  61         if (!git_refs_dir)
  62                 setup_git_env();
  63         return git_refs_dir;
  64 }
  65
  66 char *get_index_file(void)
  67 {
  68         if (!git_index_file)
  69                 setup_git_env();
  70         return git_index_file;
  71 }
  72
  73 char *get_graft_file(void)
  74 {
  75         if (!git_graft_file)
  76                 setup_git_env();
  77         return git_graft_file;
  78 }
  79
  80