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 user_ident_explicitly_given;
  15int trust_executable_bit = 1;
  16int has_symlinks = 1;
  17int ignore_case;
  18int assume_unchanged;
  19int prefer_symlink_refs;
  20int is_bare_repository_cfg = -1; /* unspecified */
  21int log_all_ref_updates = -1; /* unspecified */
  22int warn_ambiguous_refs = 1;
  23int repository_format_version;
  24const char *git_commit_encoding;
  25const char *git_log_output_encoding;
  26int shared_repository = PERM_UMASK;
  27const char *apply_default_whitespace;
  28int zlib_compression_level = Z_BEST_SPEED;
  29int core_compression_level;
  30int core_compression_seen;
  31int fsync_object_files;
  32size_t packed_git_window_size = DEFAULT_PACKED_GIT_WINDOW_SIZE;
  33size_t packed_git_limit = DEFAULT_PACKED_GIT_LIMIT;
  34size_t delta_base_cache_limit = 16 * 1024 * 1024;
  35const char *pager_program;
  36int pager_use_color = 1;
  37const char *editor_program;
  38const char *excludes_file;
  39int auto_crlf = 0;      /* 1: both ways, -1: only when adding git objects */
  40enum safe_crlf safe_crlf = SAFE_CRLF_WARN;
  41unsigned whitespace_rule_cfg = WS_DEFAULT_RULE;
  42enum branch_track git_branch_track = BRANCH_TRACK_REMOTE;
  43enum rebase_setup_type autorebase = AUTOREBASE_NEVER;
  44
  45/* This is set by setup_git_dir_gently() and/or git_default_config() */
  46char *git_work_tree_cfg;
  47static char *work_tree;
  48
  49static const char *git_dir;
  50static char *git_object_dir, *git_index_file, *git_refs_dir, *git_graft_file;
  51
  52static void setup_git_env(void)
  53{
  54        git_dir = getenv(GIT_DIR_ENVIRONMENT);
  55        if (!git_dir)
  56                git_dir = read_gitfile_gently(DEFAULT_GIT_DIR_ENVIRONMENT);
  57        if (!git_dir)
  58                git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
  59        git_object_dir = getenv(DB_ENVIRONMENT);
  60        if (!git_object_dir) {
  61                git_object_dir = xmalloc(strlen(git_dir) + 9);
  62                sprintf(git_object_dir, "%s/objects", git_dir);
  63        }
  64        git_refs_dir = xmalloc(strlen(git_dir) + 6);
  65        sprintf(git_refs_dir, "%s/refs", git_dir);
  66        git_index_file = getenv(INDEX_ENVIRONMENT);
  67        if (!git_index_file) {
  68                git_index_file = xmalloc(strlen(git_dir) + 7);
  69                sprintf(git_index_file, "%s/index", git_dir);
  70        }
  71        git_graft_file = getenv(GRAFT_ENVIRONMENT);
  72        if (!git_graft_file)
  73                git_graft_file = xstrdup(git_path("info/grafts"));
  74}
  75
  76int is_bare_repository(void)
  77{
  78        /* if core.bare is not 'false', let's see if there is a work tree */
  79        return is_bare_repository_cfg && !get_git_work_tree();
  80}
  81
  82const char *get_git_dir(void)
  83{
  84        if (!git_dir)
  85                setup_git_env();
  86        return git_dir;
  87}
  88
  89static int git_work_tree_initialized;
  90
  91/*
  92 * Note.  This works only before you used a work tree.  This was added
  93 * primarily to support git-clone to work in a new repository it just
  94 * created, and is not meant to flip between different work trees.
  95 */
  96void set_git_work_tree(const char *new_work_tree)
  97{
  98        if (is_bare_repository_cfg >= 0)
  99                die("cannot set work tree after initialization");
 100        git_work_tree_initialized = 1;
 101        free(work_tree);
 102        work_tree = xstrdup(make_absolute_path(new_work_tree));
 103        is_bare_repository_cfg = 0;
 104}
 105
 106const char *get_git_work_tree(void)
 107{
 108        if (!git_work_tree_initialized) {
 109                work_tree = getenv(GIT_WORK_TREE_ENVIRONMENT);
 110                /* core.bare = true overrides implicit and config work tree */
 111                if (!work_tree && is_bare_repository_cfg < 1) {
 112                        work_tree = git_work_tree_cfg;
 113                        /* make_absolute_path also normalizes the path */
 114                        if (work_tree && !is_absolute_path(work_tree))
 115                                work_tree = xstrdup(make_absolute_path(git_path(work_tree)));
 116                } else if (work_tree)
 117                        work_tree = xstrdup(make_absolute_path(work_tree));
 118                git_work_tree_initialized = 1;
 119                if (work_tree)
 120                        is_bare_repository_cfg = 0;
 121        }
 122        return work_tree;
 123}
 124
 125char *get_object_directory(void)
 126{
 127        if (!git_object_dir)
 128                setup_git_env();
 129        return git_object_dir;
 130}
 131
 132char *get_index_file(void)
 133{
 134        if (!git_index_file)
 135                setup_git_env();
 136        return git_index_file;
 137}
 138
 139char *get_graft_file(void)
 140{
 141        if (!git_graft_file)
 142                setup_git_env();
 143        return git_graft_file;
 144}
 145
 146int set_git_dir(const char *path)
 147{
 148        if (setenv(GIT_DIR_ENVIRONMENT, path, 1))
 149                return error("Could not set GIT_DIR to '%s'", path);
 150        setup_git_env();
 151        return 0;
 152}