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
  16 static char *git_dir, *git_object_dir, *git_index_file, *git_refs_dir,
  17         *git_graft_file;
  18 static void setup_git_env(void)
  19 {
  20         git_dir = getenv(GIT_DIR_ENVIRONMENT);
  21         if (!git_dir)
  22                 git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
  23         git_object_dir = getenv(DB_ENVIRONMENT);
  24         if (!git_object_dir) {
  25                 git_object_dir = xmalloc(strlen(git_dir) + 9);
  26                 sprintf(git_object_dir, "%s/objects", git_dir);
  27         }
  28         git_refs_dir = xmalloc(strlen(git_dir) + 6);
  29         sprintf(git_refs_dir, "%s/refs", git_dir);
  30         git_index_file = getenv(INDEX_ENVIRONMENT);
  31         if (!git_index_file) {
  32                 git_index_file = xmalloc(strlen(git_dir) + 7);
  33                 sprintf(git_index_file, "%s/index", git_dir);
  34         }
  35         git_graft_file = getenv(GRAFT_ENVIRONMENT);
  36         if (!git_graft_file)
  37                 git_graft_file = strdup(git_path("info/grafts"));
  38 }
  39
  40 char *get_git_dir(void)
  41 {
  42         if (!git_dir)
  43                 setup_git_env();
  44         return git_dir;
  45 }
  46
  47 char *get_object_directory(void)
  48 {
  49         if (!git_object_dir)
  50                 setup_git_env();
  51         return git_object_dir;
  52 }
  53
  54 char *get_refs_directory(void)
  55 {
  56         if (!git_refs_dir)
  57                 setup_git_env();
  58         return git_refs_dir;
  59 }
  60
  61 char *get_index_file(void)
  62 {
  63         if (!git_index_file)
  64                 setup_git_env();
  65         return git_index_file;
  66 }
  67
  68 char *get_graft_file(void)
  69 {
  70         if (!git_graft_file)
  71                 setup_git_env();
  72         return git_graft_file;
  73 }
  74
  75