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
  24 static char *git_dir, *git_object_dir, *git_index_file, *git_refs_dir,
  25         *git_graft_file;
  26 static void setup_git_env(void)
  27 {
  28         git_dir = getenv(GIT_DIR_ENVIRONMENT);
  29         if (!git_dir)
  30                 git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
  31         git_object_dir = getenv(DB_ENVIRONMENT);
  32         if (!git_object_dir) {
  33                 git_object_dir = xmalloc(strlen(git_dir) + 9);
  34                 sprintf(git_object_dir, "%s/objects", git_dir);
  35         }
  36         git_refs_dir = xmalloc(strlen(git_dir) + 6);
  37         sprintf(git_refs_dir, "%s/refs", git_dir);
  38         git_index_file = getenv(INDEX_ENVIRONMENT);
  39         if (!git_index_file) {
  40                 git_index_file = xmalloc(strlen(git_dir) + 7);
  41                 sprintf(git_index_file, "%s/index", git_dir);
  42         }
  43         git_graft_file = getenv(GRAFT_ENVIRONMENT);
  44         if (!git_graft_file)
  45                 git_graft_file = strdup(git_path("info/grafts"));
  46 }
  47
  48 char *get_git_dir(void)
  49 {
  50         if (!git_dir)
  51                 setup_git_env();
  52         return git_dir;
  53 }
  54
  55 char *get_object_directory(void)
  56 {
  57         if (!git_object_dir)
  58                 setup_git_env();
  59         return git_object_dir;
  60 }
  61
  62 char *get_refs_directory(void)
  63 {
  64         if (!git_refs_dir)
  65                 setup_git_env();
  66         return git_refs_dir;
  67 }
  68
  69 char *get_index_file(void)
  70 {
  71         if (!git_index_file)
  72                 setup_git_env();
  73         return git_index_file;
  74 }
  75
  76 char *get_graft_file(void)
  77 {
  78         if (!git_graft_file)
  79                 setup_git_env();
  80         return git_graft_file;
  81 }
  82
  83