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/* This is set by setup_git_dir_gently() and/or git_default_config() */
  47char *git_work_tree_cfg;
  48static char *work_tree;
  49
  50static const char *git_dir;
  51static char *git_object_dir, *git_index_file, *git_refs_dir, *git_graft_file;
  52
  53static void setup_git_env(void)
  54{
  55        git_dir = getenv(GIT_DIR_ENVIRONMENT);
  56        if (!git_dir)
  57                git_dir = read_gitfile_gently(DEFAULT_GIT_DIR_ENVIRONMENT);
  58        if (!git_dir)
  59                git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
  60        git_object_dir = getenv(DB_ENVIRONMENT);
  61        if (!git_object_dir) {
  62                git_object_dir = xmalloc(strlen(git_dir) + 9);
  63                sprintf(git_object_dir, "%s/objects", git_dir);
  64        }
  65        git_refs_dir = xmalloc(strlen(git_dir) + 6);
  66        sprintf(git_refs_dir, "%s/refs", git_dir);
  67        git_index_file = getenv(INDEX_ENVIRONMENT);
  68        if (!git_index_file) {
  69                git_index_file = xmalloc(strlen(git_dir) + 7);
  70                sprintf(git_index_file, "%s/index", git_dir);
  71        }
  72        git_graft_file = getenv(GRAFT_ENVIRONMENT);
  73        if (!git_graft_file)
  74                git_graft_file = git_pathdup("info/grafts");
  75}
  76
  77int is_bare_repository(void)
  78{
  79        /* if core.bare is not 'false', let's see if there is a work tree */
  80        return is_bare_repository_cfg && !get_git_work_tree();
  81}
  82
  83int have_git_dir(void)
  84{
  85        return !!git_dir;
  86}
  87
  88const char *get_git_dir(void)
  89{
  90        if (!git_dir)
  91                setup_git_env();
  92        return git_dir;
  93}
  94
  95static int git_work_tree_initialized;
  96
  97/*
  98 * Note.  This works only before you used a work tree.  This was added
  99 * primarily to support git-clone to work in a new repository it just
 100 * created, and is not meant to flip between different work trees.
 101 */
 102void set_git_work_tree(const char *new_work_tree)
 103{
 104        if (is_bare_repository_cfg >= 0)
 105                die("cannot set work tree after initialization");
 106        git_work_tree_initialized = 1;
 107        free(work_tree);
 108        work_tree = xstrdup(make_absolute_path(new_work_tree));
 109        is_bare_repository_cfg = 0;
 110}
 111
 112const char *get_git_work_tree(void)
 113{
 114        if (!git_work_tree_initialized) {
 115                work_tree = getenv(GIT_WORK_TREE_ENVIRONMENT);
 116                /* core.bare = true overrides implicit and config work tree */
 117                if (!work_tree && is_bare_repository_cfg < 1) {
 118                        work_tree = git_work_tree_cfg;
 119                        /* make_absolute_path also normalizes the path */
 120                        if (work_tree && !is_absolute_path(work_tree))
 121                                work_tree = xstrdup(make_absolute_path(git_path("%s", work_tree)));
 122                } else if (work_tree)
 123                        work_tree = xstrdup(make_absolute_path(work_tree));
 124                git_work_tree_initialized = 1;
 125                if (work_tree)
 126                        is_bare_repository_cfg = 0;
 127        }
 128        return work_tree;
 129}
 130
 131char *get_object_directory(void)
 132{
 133        if (!git_object_dir)
 134                setup_git_env();
 135        return git_object_dir;
 136}
 137
 138char *get_index_file(void)
 139{
 140        if (!git_index_file)
 141                setup_git_env();
 142        return git_index_file;
 143}
 144
 145char *get_graft_file(void)
 146{
 147        if (!git_graft_file)
 148                setup_git_env();
 149        return git_graft_file;
 150}
 151
 152int set_git_dir(const char *path)
 153{
 154        if (setenv(GIT_DIR_ENVIRONMENT, path, 1))
 155                return error("Could not set GIT_DIR to '%s'", path);
 156        setup_git_env();
 157        return 0;
 158}