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 use_legacy_headers = 1;
  15 int trust_executable_bit = 1;
  16 int assume_unchanged;
  17 int prefer_symlink_refs;
  18 int log_all_ref_updates;
  19 int warn_ambiguous_refs = 1;
  20 int repository_format_version;
  21 char git_commit_encoding[MAX_ENCODING_LENGTH] = "utf-8";
  22 int shared_repository = PERM_UMASK;
  23 const char *apply_default_whitespace;
  24 int zlib_compression_level = Z_DEFAULT_COMPRESSION;
  25 int pager_in_use;
  26 int pager_use_color = 1;
  27
  28 static char *git_dir, *git_object_dir, *git_index_file, *git_refs_dir,
  29         *git_graft_file;
  30 static void setup_git_env(void)
  31 {
  32         git_dir = getenv(GIT_DIR_ENVIRONMENT);
  33         if (!git_dir)
  34                 git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
  35         git_object_dir = getenv(DB_ENVIRONMENT);
  36         if (!git_object_dir) {
  37                 git_object_dir = xmalloc(strlen(git_dir) + 9);
  38                 sprintf(git_object_dir, "%s/objects", git_dir);
  39         }
  40         git_refs_dir = xmalloc(strlen(git_dir) + 6);
  41         sprintf(git_refs_dir, "%s/refs", git_dir);
  42         git_index_file = getenv(INDEX_ENVIRONMENT);
  43         if (!git_index_file) {
  44                 git_index_file = xmalloc(strlen(git_dir) + 7);
  45                 sprintf(git_index_file, "%s/index", git_dir);
  46         }
  47         git_graft_file = getenv(GRAFT_ENVIRONMENT);
  48         if (!git_graft_file)
  49                 git_graft_file = strdup(git_path("info/grafts"));
  50 }
  51
  52 char *get_git_dir(void)
  53 {
  54         if (!git_dir)
  55                 setup_git_env();
  56         return git_dir;
  57 }
  58
  59 char *get_object_directory(void)
  60 {
  61         if (!git_object_dir)
  62                 setup_git_env();
  63         return git_object_dir;
  64 }
  65
  66 char *get_refs_directory(void)
  67 {
  68         if (!git_refs_dir)
  69                 setup_git_env();
  70         return git_refs_dir;
  71 }
  72
  73 char *get_index_file(void)
  74 {
  75         if (!git_index_file)
  76                 setup_git_env();
  77         return git_index_file;
  78 }
  79
  80 char *get_graft_file(void)
  81 {
  82         if (!git_graft_file)
  83                 setup_git_env();
  84         return git_graft_file;
  85 }
  86
  87