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
  25 static char *git_dir, *git_object_dir, *git_index_file, *git_refs_dir,
  26         *git_graft_file;
  27 static void setup_git_env(void)
  28 {
  29         git_dir = getenv(GIT_DIR_ENVIRONMENT);
  30         if (!git_dir)
  31                 git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
  32         git_object_dir = getenv(DB_ENVIRONMENT);
  33         if (!git_object_dir) {
  34                 git_object_dir = xmalloc(strlen(git_dir) + 9);
  35                 sprintf(git_object_dir, "%s/objects", git_dir);
  36         }
  37         git_refs_dir = xmalloc(strlen(git_dir) + 6);
  38         sprintf(git_refs_dir, "%s/refs", git_dir);
  39         git_index_file = getenv(INDEX_ENVIRONMENT);
  40         if (!git_index_file) {
  41                 git_index_file = xmalloc(strlen(git_dir) + 7);
  42                 sprintf(git_index_file, "%s/index", git_dir);
  43         }
  44         git_graft_file = getenv(GRAFT_ENVIRONMENT);
  45         if (!git_graft_file)
  46                 git_graft_file = strdup(git_path("info/grafts"));
  47 }
  48
  49 char *get_git_dir(void)
  50 {
  51         if (!git_dir)
  52                 setup_git_env();
  53         return git_dir;
  54 }
  55
  56 char *get_object_directory(void)
  57 {
  58         if (!git_object_dir)
  59                 setup_git_env();
  60         return git_object_dir;
  61 }
  62
  63 char *get_refs_directory(void)
  64 {
  65         if (!git_refs_dir)
  66                 setup_git_env();
  67         return git_refs_dir;
  68 }
  69
  70 char *get_index_file(void)
  71 {
  72         if (!git_index_file)
  73                 setup_git_env();
  74         return git_index_file;
  75 }
  76
  77 char *get_graft_file(void)
  78 {
  79         if (!git_graft_file)
  80                 setup_git_env();
  81         return git_graft_file;
  82 }
  83
  84