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 trust_ctime = 1;
  17int has_symlinks = 1;
  18int ignore_case;
  19int assume_unchanged;
  20int prefer_symlink_refs;
  21int is_bare_repository_cfg = -1; /* unspecified */
  22int log_all_ref_updates = -1; /* unspecified */
  23int warn_ambiguous_refs = 1;
  24int repository_format_version;
  25const char *git_commit_encoding;
  26const char *git_log_output_encoding;
  27int shared_repository = PERM_UMASK;
  28const char *apply_default_whitespace;
  29int zlib_compression_level = Z_BEST_SPEED;
  30int core_compression_level;
  31int core_compression_seen;
  32int fsync_object_files;
  33size_t packed_git_window_size = DEFAULT_PACKED_GIT_WINDOW_SIZE;
  34size_t packed_git_limit = DEFAULT_PACKED_GIT_LIMIT;
  35size_t delta_base_cache_limit = 16 * 1024 * 1024;
  36const char *pager_program;
  37int pager_use_color = 1;
  38const char *editor_program;
  39const char *excludes_file;
  40int auto_crlf = 0;      /* 1: both ways, -1: only when adding git objects */
  41enum safe_crlf safe_crlf = SAFE_CRLF_WARN;
  42unsigned whitespace_rule_cfg = WS_DEFAULT_RULE;
  43enum branch_track git_branch_track = BRANCH_TRACK_REMOTE;
  44enum rebase_setup_type autorebase = AUTOREBASE_NEVER;
  45
  46/* Parallel index stat data preload? */
  47int core_preload_index = 0;
  48
  49/* This is set by setup_git_dir_gently() and/or git_default_config() */
  50char *git_work_tree_cfg;
  51static char *work_tree;
  52
  53static const char *git_dir;
  54static char *git_object_dir, *git_index_file, *git_refs_dir, *git_graft_file;
  55
  56static void setup_git_env(void)
  57{
  58        git_dir = getenv(GIT_DIR_ENVIRONMENT);
  59        if (!git_dir)
  60                git_dir = read_gitfile_gently(DEFAULT_GIT_DIR_ENVIRONMENT);
  61        if (!git_dir)
  62                git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
  63        git_object_dir = getenv(DB_ENVIRONMENT);
  64        if (!git_object_dir) {
  65                git_object_dir = xmalloc(strlen(git_dir) + 9);
  66                sprintf(git_object_dir, "%s/objects", git_dir);
  67        }
  68        git_refs_dir = xmalloc(strlen(git_dir) + 6);
  69        sprintf(git_refs_dir, "%s/refs", git_dir);
  70        git_index_file = getenv(INDEX_ENVIRONMENT);
  71        if (!git_index_file) {
  72                git_index_file = xmalloc(strlen(git_dir) + 7);
  73                sprintf(git_index_file, "%s/index", git_dir);
  74        }
  75        git_graft_file = getenv(GRAFT_ENVIRONMENT);
  76        if (!git_graft_file)
  77                git_graft_file = git_pathdup("info/grafts");
  78}
  79
  80int is_bare_repository(void)
  81{
  82        /* if core.bare is not 'false', let's see if there is a work tree */
  83        return is_bare_repository_cfg && !get_git_work_tree();
  84}
  85
  86int have_git_dir(void)
  87{
  88        return !!git_dir;
  89}
  90
  91const char *get_git_dir(void)
  92{
  93        if (!git_dir)
  94                setup_git_env();
  95        return git_dir;
  96}
  97
  98static int git_work_tree_initialized;
  99
 100/*
 101 * Note.  This works only before you used a work tree.  This was added
 102 * primarily to support git-clone to work in a new repository it just
 103 * created, and is not meant to flip between different work trees.
 104 */
 105void set_git_work_tree(const char *new_work_tree)
 106{
 107        if (is_bare_repository_cfg >= 0)
 108                die("cannot set work tree after initialization");
 109        git_work_tree_initialized = 1;
 110        free(work_tree);
 111        work_tree = xstrdup(make_absolute_path(new_work_tree));
 112        is_bare_repository_cfg = 0;
 113}
 114
 115const char *get_git_work_tree(void)
 116{
 117        if (!git_work_tree_initialized) {
 118                work_tree = getenv(GIT_WORK_TREE_ENVIRONMENT);
 119                /* core.bare = true overrides implicit and config work tree */
 120                if (!work_tree && is_bare_repository_cfg < 1) {
 121                        work_tree = git_work_tree_cfg;
 122                        /* make_absolute_path also normalizes the path */
 123                        if (work_tree && !is_absolute_path(work_tree))
 124                                work_tree = xstrdup(make_absolute_path(git_path("%s", work_tree)));
 125                } else if (work_tree)
 126                        work_tree = xstrdup(make_absolute_path(work_tree));
 127                git_work_tree_initialized = 1;
 128                if (work_tree)
 129                        is_bare_repository_cfg = 0;
 130        }
 131        return work_tree;
 132}
 133
 134char *get_object_directory(void)
 135{
 136        if (!git_object_dir)
 137                setup_git_env();
 138        return git_object_dir;
 139}
 140
 141char *get_index_file(void)
 142{
 143        if (!git_index_file)
 144                setup_git_env();
 145        return git_index_file;
 146}
 147
 148char *get_graft_file(void)
 149{
 150        if (!git_graft_file)
 151                setup_git_env();
 152        return git_graft_file;
 153}
 154
 155int set_git_dir(const char *path)
 156{
 157        if (setenv(GIT_DIR_ENVIRONMENT, path, 1))
 158                return error("Could not set GIT_DIR to '%s'", path);
 159        setup_git_env();
 160        return 0;
 161}