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 int deny_non_fast_forwards = 0;
  24 const char *apply_default_whitespace;
  25 int zlib_compression_level = Z_DEFAULT_COMPRESSION;
  26 int pager_in_use;
  27 int pager_use_color = 1;
  28
  29 static const char *git_dir;
  30 static char *git_object_dir, *git_index_file, *git_refs_dir, *git_graft_file;
  31
  32 static void setup_git_env(void)
  33 {
  34         git_dir = getenv(GIT_DIR_ENVIRONMENT);
  35         if (!git_dir)
  36                 git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
  37         git_object_dir = getenv(DB_ENVIRONMENT);
  38         if (!git_object_dir) {
  39                 git_object_dir = xmalloc(strlen(git_dir) + 9);
  40                 sprintf(git_object_dir, "%s/objects", git_dir);
  41         }
  42         git_refs_dir = xmalloc(strlen(git_dir) + 6);
  43         sprintf(git_refs_dir, "%s/refs", git_dir);
  44         git_index_file = getenv(INDEX_ENVIRONMENT);
  45         if (!git_index_file) {
  46                 git_index_file = xmalloc(strlen(git_dir) + 7);
  47                 sprintf(git_index_file, "%s/index", git_dir);
  48         }
  49         git_graft_file = getenv(GRAFT_ENVIRONMENT);
  50         if (!git_graft_file)
  51                 git_graft_file = xstrdup(git_path("info/grafts"));
  52 }
  53
  54 const char *get_git_dir(void)
  55 {
  56         if (!git_dir)
  57                 setup_git_env();
  58         return git_dir;
  59 }
  60
  61 char *get_object_directory(void)
  62 {
  63         if (!git_object_dir)
  64                 setup_git_env();
  65         return git_object_dir;
  66 }
  67
  68 char *get_refs_directory(void)
  69 {
  70         if (!git_refs_dir)
  71                 setup_git_env();
  72         return git_refs_dir;
  73 }
  74
  75 char *get_index_file(void)
  76 {
  77         if (!git_index_file)
  78                 setup_git_env();
  79         return git_index_file;
  80 }
  81
  82 char *get_graft_file(void)
  83 {
  84         if (!git_graft_file)
  85                 setup_git_env();
  86         return git_graft_file;
  87 }
  88
  89