Andrew's git - gitweb.git/blob

   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
  12char git_default_email[MAX_GITNAME];
  13char git_default_name[MAX_GITNAME];
  14int trust_executable_bit = 1;
  15int quote_path_fully = 1;
  16int has_symlinks = 1;
  17int assume_unchanged;
  18int prefer_symlink_refs;
  19int is_bare_repository_cfg = -1; /* unspecified */
  20int log_all_ref_updates = -1; /* unspecified */
  21int warn_ambiguous_refs = 1;
  22int repository_format_version;
  23const char *git_commit_encoding;
  24const char *git_log_output_encoding;
  25int shared_repository = PERM_UMASK;
  26const char *apply_default_whitespace;
  27int zlib_compression_level = Z_BEST_SPEED;
  28int core_compression_level;
  29int core_compression_seen;
  30size_t packed_git_window_size = DEFAULT_PACKED_GIT_WINDOW_SIZE;
  31size_t packed_git_limit = DEFAULT_PACKED_GIT_LIMIT;
  32size_t delta_base_cache_limit = 16 * 1024 * 1024;
  33char *pager_program;
  34int pager_use_color = 1;
  35char *editor_program;
  36char *excludes_file;
  37int auto_crlf = 0;      /* 1: both ways, -1: only when adding git objects */
  38unsigned whitespace_rule_cfg = WS_DEFAULT_RULE;
  39
  40/* This is set by setup_git_dir_gently() and/or git_default_config() */
  41char *git_work_tree_cfg;
  42static const char *work_tree;
  43
  44static const char *git_dir;
  45static char *git_object_dir, *git_index_file, *git_refs_dir, *git_graft_file;
  46
  47static void setup_git_env(void)
  48{
  49        git_dir = getenv(GIT_DIR_ENVIRONMENT);
  50        if (!git_dir)
  51                git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
  52        git_object_dir = getenv(DB_ENVIRONMENT);
  53        if (!git_object_dir) {
  54                git_object_dir = xmalloc(strlen(git_dir) + 9);
  55                sprintf(git_object_dir, "%s/objects", git_dir);
  56        }
  57        git_refs_dir = xmalloc(strlen(git_dir) + 6);
  58        sprintf(git_refs_dir, "%s/refs", git_dir);
  59        git_index_file = getenv(INDEX_ENVIRONMENT);
  60        if (!git_index_file) {
  61                git_index_file = xmalloc(strlen(git_dir) + 7);
  62                sprintf(git_index_file, "%s/index", git_dir);
  63        }
  64        git_graft_file = getenv(GRAFT_ENVIRONMENT);
  65        if (!git_graft_file)
  66                git_graft_file = xstrdup(git_path("info/grafts"));
  67}
  68
  69int is_bare_repository(void)
  70{
  71        /* if core.bare is not 'false', let's see if there is a work tree */
  72        return is_bare_repository_cfg && !get_git_work_tree();
  73}
  74
  75const char *get_git_dir(void)
  76{
  77        if (!git_dir)
  78                setup_git_env();
  79        return git_dir;
  80}
  81
  82const char *get_git_work_tree(void)
  83{
  84        static int initialized = 0;
  85        if (!initialized) {
  86                work_tree = getenv(GIT_WORK_TREE_ENVIRONMENT);
  87                /* core.bare = true overrides implicit and config work tree */
  88                if (!work_tree && is_bare_repository_cfg < 1) {
  89                        work_tree = git_work_tree_cfg;
  90                        /* make_absolute_path also normalizes the path */
  91                        if (work_tree && !is_absolute_path(work_tree))
  92                                work_tree = xstrdup(make_absolute_path(git_path(work_tree)));
  93                } else if (work_tree)
  94                        work_tree = xstrdup(make_absolute_path(work_tree));
  95                initialized = 1;
  96                if (work_tree)
  97                        is_bare_repository_cfg = 0;
  98        }
  99        return work_tree;
 100}
 101
 102char *get_object_directory(void)
 103{
 104        if (!git_object_dir)
 105                setup_git_env();
 106        return git_object_dir;
 107}
 108
 109char *get_refs_directory(void)
 110{
 111        if (!git_refs_dir)
 112                setup_git_env();
 113        return git_refs_dir;
 114}
 115
 116char *get_index_file(void)
 117{
 118        if (!git_index_file)
 119                setup_git_env();
 120        return git_index_file;
 121}
 122
 123char *get_graft_file(void)
 124{
 125        if (!git_graft_file)
 126                setup_git_env();
 127        return git_graft_file;
 128}
 129
 130int set_git_dir(const char *path)
 131{
 132        if (setenv(GIT_DIR_ENVIRONMENT, path, 1))
 133                return error("Could not set GIT_DIR to '%s'", path);
 134        setup_git_env();
 135        return 0;
 136}