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 = 0;
  17 int prefer_symlink_refs = 0;
  18 int log_all_ref_updates = 0;
  19 int warn_ambiguous_refs = 1;
  20 int repository_format_version = 0;
  21 char git_commit_encoding[MAX_ENCODING_LENGTH] = "utf-8";
  22 int shared_repository = PERM_UMASK;
  23 const char *apply_default_whitespace = NULL;
  24 int zlib_compression_level = Z_DEFAULT_COMPRESSION;
  25 int pager_in_use;
  26
  27 static char *git_dir, *git_object_dir, *git_index_file, *git_refs_dir,
  28         *git_graft_file;
  29 static void setup_git_env(void)
  30 {
  31         git_dir = getenv(GIT_DIR_ENVIRONMENT);
  32         if (!git_dir)
  33                 git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
  34         git_object_dir = getenv(DB_ENVIRONMENT);
  35         if (!git_object_dir) {
  36                 git_object_dir = xmalloc(strlen(git_dir) + 9);
  37                 sprintf(git_object_dir, "%s/objects", git_dir);
  38         }
  39         git_refs_dir = xmalloc(strlen(git_dir) + 6);
  40         sprintf(git_refs_dir, "%s/refs", git_dir);
  41         git_index_file = getenv(INDEX_ENVIRONMENT);
  42         if (!git_index_file) {
  43                 git_index_file = xmalloc(strlen(git_dir) + 7);
  44                 sprintf(git_index_file, "%s/index", git_dir);
  45         }
  46         git_graft_file = getenv(GRAFT_ENVIRONMENT);
  47         if (!git_graft_file)
  48                 git_graft_file = strdup(git_path("info/grafts"));
  49 }
  50
  51 char *get_git_dir(void)
  52 {
  53         if (!git_dir)
  54                 setup_git_env();
  55         return git_dir;
  56 }
  57
  58 char *get_object_directory(void)
  59 {
  60         if (!git_object_dir)
  61                 setup_git_env();
  62         return git_object_dir;
  63 }
  64
  65 char *get_refs_directory(void)
  66 {
  67         if (!git_refs_dir)
  68                 setup_git_env();
  69         return git_refs_dir;
  70 }
  71
  72 char *get_index_file(void)
  73 {
  74         if (!git_index_file)
  75                 setup_git_env();
  76         return git_index_file;
  77 }
  78
  79 char *get_graft_file(void)
  80 {
  81         if (!git_graft_file)
  82                 setup_git_env();
  83         return git_graft_file;
  84 }
  85
  86