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 prefer_symlink_refs = 0;
  17 int log_all_ref_updates = 0;
  18 int warn_ambiguous_refs = 1;
  19 int repository_format_version = 0;
  20 char git_commit_encoding[MAX_ENCODING_LENGTH] = "utf-8";
  21 int shared_repository = PERM_UMASK;
  22 const char *apply_default_whitespace = NULL;
  23 int zlib_compression_level = Z_DEFAULT_COMPRESSION;
  24 int pager_in_use;
  25
  26 static char *git_dir, *git_object_dir, *git_index_file, *git_refs_dir,
  27         *git_graft_file;
  28 static void setup_git_env(void)
  29 {
  30         git_dir = getenv(GIT_DIR_ENVIRONMENT);
  31         if (!git_dir)
  32                 git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
  33         git_object_dir = getenv(DB_ENVIRONMENT);
  34         if (!git_object_dir) {
  35                 git_object_dir = xmalloc(strlen(git_dir) + 9);
  36                 sprintf(git_object_dir, "%s/objects", git_dir);
  37         }
  38         git_refs_dir = xmalloc(strlen(git_dir) + 6);
  39         sprintf(git_refs_dir, "%s/refs", git_dir);
  40         git_index_file = getenv(INDEX_ENVIRONMENT);
  41         if (!git_index_file) {
  42                 git_index_file = xmalloc(strlen(git_dir) + 7);
  43                 sprintf(git_index_file, "%s/index", git_dir);
  44         }
  45         git_graft_file = getenv(GRAFT_ENVIRONMENT);
  46         if (!git_graft_file)
  47                 git_graft_file = strdup(git_path("info/grafts"));
  48 }
  49
  50 char *get_git_dir(void)
  51 {
  52         if (!git_dir)
  53                 setup_git_env();
  54         return git_dir;
  55 }
  56
  57 char *get_object_directory(void)
  58 {
  59         if (!git_object_dir)
  60                 setup_git_env();
  61         return git_object_dir;
  62 }
  63
  64 char *get_refs_directory(void)
  65 {
  66         if (!git_refs_dir)
  67                 setup_git_env();
  68         return git_refs_dir;
  69 }
  70
  71 char *get_index_file(void)
  72 {
  73         if (!git_index_file)
  74                 setup_git_env();
  75         return git_index_file;
  76 }
  77
  78 char *get_graft_file(void)
  79 {
  80         if (!git_graft_file)
  81                 setup_git_env();
  82         return git_graft_file;
  83 }
  84
  85