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