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;
  33const char *pager_program;
  34int pager_use_color = 1;
  35const char *editor_program;
  36const char *excludes_file;
  37int auto_crlf = 0;      /* 1: both ways, -1: only when adding git objects */
  38enum safe_crlf safe_crlf = SAFE_CRLF_WARN;
  39unsigned whitespace_rule_cfg = WS_DEFAULT_RULE;
  40enum branch_track git_branch_track = BRANCH_TRACK_REMOTE;
  41
  42/* This is set by setup_git_dir_gently() and/or git_default_config() */
  43char *git_work_tree_cfg;
  44static const char *work_tree;
  45
  46static const char *git_dir;
  47static char *git_object_dir, *git_index_file, *git_refs_dir, *git_graft_file;
  48
  49static void setup_git_env(void)
  50{
  51        git_dir = getenv(GIT_DIR_ENVIRONMENT);
  52        if (!git_dir)
  53                git_dir = read_gitfile_gently(DEFAULT_GIT_DIR_ENVIRONMENT);
  54        if (!git_dir)
  55                git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
  56        git_object_dir = getenv(DB_ENVIRONMENT);
  57        if (!git_object_dir) {
  58                git_object_dir = xmalloc(strlen(git_dir) + 9);
  59                sprintf(git_object_dir, "%s/objects", git_dir);
  60        }
  61        git_refs_dir = xmalloc(strlen(git_dir) + 6);
  62        sprintf(git_refs_dir, "%s/refs", git_dir);
  63        git_index_file = getenv(INDEX_ENVIRONMENT);
  64        if (!git_index_file) {
  65                git_index_file = xmalloc(strlen(git_dir) + 7);
  66                sprintf(git_index_file, "%s/index", git_dir);
  67        }
  68        git_graft_file = getenv(GRAFT_ENVIRONMENT);
  69        if (!git_graft_file)
  70                git_graft_file = xstrdup(git_path("info/grafts"));
  71}
  72
  73int is_bare_repository(void)
  74{
  75        /* if core.bare is not 'false', let's see if there is a work tree */
  76        return is_bare_repository_cfg && !get_git_work_tree();
  77}
  78
  79const char *get_git_dir(void)
  80{
  81        if (!git_dir)
  82                setup_git_env();
  83        return git_dir;
  84}
  85
  86const char *get_git_work_tree(void)
  87{
  88        static int initialized = 0;
  89        if (!initialized) {
  90                work_tree = getenv(GIT_WORK_TREE_ENVIRONMENT);
  91                /* core.bare = true overrides implicit and config work tree */
  92                if (!work_tree && is_bare_repository_cfg < 1) {
  93                        work_tree = git_work_tree_cfg;
  94                        /* make_absolute_path also normalizes the path */
  95                        if (work_tree && !is_absolute_path(work_tree))
  96                                work_tree = xstrdup(make_absolute_path(git_path(work_tree)));
  97                } else if (work_tree)
  98                        work_tree = xstrdup(make_absolute_path(work_tree));
  99                initialized = 1;
 100                if (work_tree)
 101                        is_bare_repository_cfg = 0;
 102        }
 103        return work_tree;
 104}
 105
 106char *get_object_directory(void)
 107{
 108        if (!git_object_dir)
 109                setup_git_env();
 110        return git_object_dir;
 111}
 112
 113char *get_refs_directory(void)
 114{
 115        if (!git_refs_dir)
 116                setup_git_env();
 117        return git_refs_dir;
 118}
 119
 120char *get_index_file(void)
 121{
 122        if (!git_index_file)
 123                setup_git_env();
 124        return git_index_file;
 125}
 126
 127char *get_graft_file(void)
 128{
 129        if (!git_graft_file)
 130                setup_git_env();
 131        return git_graft_file;
 132}
 133
 134int set_git_dir(const char *path)
 135{
 136        if (setenv(GIT_DIR_ENVIRONMENT, path, 1))
 137                return error("Could not set GIT_DIR to '%s'", path);
 138        setup_git_env();
 139        return 0;
 140}