environment.con commit Merge branch 'jh/clean-exclude' (79d532c)
   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;
  29const char *apply_default_ignorewhitespace;
  30int zlib_compression_level = Z_BEST_SPEED;
  31int core_compression_level;
  32int core_compression_seen;
  33int fsync_object_files;
  34size_t packed_git_window_size = DEFAULT_PACKED_GIT_WINDOW_SIZE;
  35size_t packed_git_limit = DEFAULT_PACKED_GIT_LIMIT;
  36size_t delta_base_cache_limit = 16 * 1024 * 1024;
  37const char *pager_program;
  38int pager_use_color = 1;
  39const char *editor_program;
  40const char *excludes_file;
  41enum auto_crlf auto_crlf = AUTO_CRLF_FALSE;
  42int read_replace_refs = 1;
  43enum eol eol = EOL_UNSET;
  44enum safe_crlf safe_crlf = SAFE_CRLF_WARN;
  45unsigned whitespace_rule_cfg = WS_DEFAULT_RULE;
  46enum branch_track git_branch_track = BRANCH_TRACK_REMOTE;
  47enum rebase_setup_type autorebase = AUTOREBASE_NEVER;
  48enum push_default_type push_default = PUSH_DEFAULT_MATCHING;
  49#ifndef OBJECT_CREATION_MODE
  50#define OBJECT_CREATION_MODE OBJECT_CREATION_USES_HARDLINKS
  51#endif
  52enum object_creation_mode object_creation_mode = OBJECT_CREATION_MODE;
  53char *notes_ref_name;
  54int grafts_replace_parents = 1;
  55int core_apply_sparse_checkout;
  56struct startup_info *startup_info;
  57
  58/* Parallel index stat data preload? */
  59int core_preload_index = 0;
  60
  61/* This is set by setup_git_dir_gently() and/or git_default_config() */
  62char *git_work_tree_cfg;
  63static char *work_tree;
  64
  65static const char *git_dir;
  66static char *git_object_dir, *git_index_file, *git_refs_dir, *git_graft_file;
  67
  68/*
  69 * Repository-local GIT_* environment variables
  70 * Remember to update local_repo_env_size in cache.h when
  71 * the size of the list changes
  72 */
  73const char * const local_repo_env[LOCAL_REPO_ENV_SIZE + 1] = {
  74        ALTERNATE_DB_ENVIRONMENT,
  75        CONFIG_ENVIRONMENT,
  76        DB_ENVIRONMENT,
  77        GIT_DIR_ENVIRONMENT,
  78        GIT_WORK_TREE_ENVIRONMENT,
  79        GRAFT_ENVIRONMENT,
  80        INDEX_ENVIRONMENT,
  81        NO_REPLACE_OBJECTS_ENVIRONMENT,
  82        NULL
  83};
  84
  85static void setup_git_env(void)
  86{
  87        git_dir = getenv(GIT_DIR_ENVIRONMENT);
  88        if (!git_dir)
  89                git_dir = read_gitfile_gently(DEFAULT_GIT_DIR_ENVIRONMENT);
  90        if (!git_dir)
  91                git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
  92        git_object_dir = getenv(DB_ENVIRONMENT);
  93        if (!git_object_dir) {
  94                git_object_dir = xmalloc(strlen(git_dir) + 9);
  95                sprintf(git_object_dir, "%s/objects", git_dir);
  96        }
  97        git_refs_dir = xmalloc(strlen(git_dir) + 6);
  98        sprintf(git_refs_dir, "%s/refs", git_dir);
  99        git_index_file = getenv(INDEX_ENVIRONMENT);
 100        if (!git_index_file) {
 101                git_index_file = xmalloc(strlen(git_dir) + 7);
 102                sprintf(git_index_file, "%s/index", git_dir);
 103        }
 104        git_graft_file = getenv(GRAFT_ENVIRONMENT);
 105        if (!git_graft_file)
 106                git_graft_file = git_pathdup("info/grafts");
 107        if (getenv(NO_REPLACE_OBJECTS_ENVIRONMENT))
 108                read_replace_refs = 0;
 109}
 110
 111int is_bare_repository(void)
 112{
 113        /* if core.bare is not 'false', let's see if there is a work tree */
 114        return is_bare_repository_cfg && !get_git_work_tree();
 115}
 116
 117int have_git_dir(void)
 118{
 119        return !!git_dir;
 120}
 121
 122const char *get_git_dir(void)
 123{
 124        if (!git_dir)
 125                setup_git_env();
 126        return git_dir;
 127}
 128
 129static int git_work_tree_initialized;
 130
 131/*
 132 * Note.  This works only before you used a work tree.  This was added
 133 * primarily to support git-clone to work in a new repository it just
 134 * created, and is not meant to flip between different work trees.
 135 */
 136void set_git_work_tree(const char *new_work_tree)
 137{
 138        if (is_bare_repository_cfg >= 0)
 139                die("cannot set work tree after initialization");
 140        git_work_tree_initialized = 1;
 141        free(work_tree);
 142        work_tree = xstrdup(make_absolute_path(new_work_tree));
 143        is_bare_repository_cfg = 0;
 144}
 145
 146const char *get_git_work_tree(void)
 147{
 148        if (!git_work_tree_initialized) {
 149                work_tree = getenv(GIT_WORK_TREE_ENVIRONMENT);
 150                /* core.bare = true overrides implicit and config work tree */
 151                if (!work_tree && is_bare_repository_cfg < 1) {
 152                        work_tree = git_work_tree_cfg;
 153                        /* make_absolute_path also normalizes the path */
 154                        if (work_tree && !is_absolute_path(work_tree))
 155                                work_tree = xstrdup(make_absolute_path(git_path("%s", work_tree)));
 156                } else if (work_tree)
 157                        work_tree = xstrdup(make_absolute_path(work_tree));
 158                git_work_tree_initialized = 1;
 159                if (work_tree)
 160                        is_bare_repository_cfg = 0;
 161        }
 162        return work_tree;
 163}
 164
 165char *get_object_directory(void)
 166{
 167        if (!git_object_dir)
 168                setup_git_env();
 169        return git_object_dir;
 170}
 171
 172char *get_index_file(void)
 173{
 174        if (!git_index_file)
 175                setup_git_env();
 176        return git_index_file;
 177}
 178
 179char *get_graft_file(void)
 180{
 181        if (!git_graft_file)
 182                setup_git_env();
 183        return git_graft_file;
 184}
 185
 186int set_git_dir(const char *path)
 187{
 188        if (setenv(GIT_DIR_ENVIRONMENT, path, 1))
 189                return error("Could not set GIT_DIR to '%s'", path);
 190        setup_git_env();
 191        return 0;
 192}