diff options
Diffstat (limited to 'environment.c')
| -rw-r--r-- | environment.c | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/environment.c b/environment.c new file mode 100644 index 0000000..83d38d3 --- /dev/null +++ b/environment.c @@ -0,0 +1,191 @@ +/* + * We put all the git config variables in this same object + * file, so that programs can link against the config parser + * without having to link against all the rest of git. + * + * In particular, no need to bring in libz etc unless needed, + * even if you might want to know where the git directory etc + * are. + */ +#include "cache.h" + +char git_default_email[MAX_GITNAME]; +char git_default_name[MAX_GITNAME]; +int user_ident_explicitly_given; +int trust_executable_bit = 1; +int trust_ctime = 1; +int has_symlinks = 1; +int ignore_case; +int assume_unchanged; +int prefer_symlink_refs; +int is_bare_repository_cfg = -1; /* unspecified */ +int log_all_ref_updates = -1; /* unspecified */ +int warn_ambiguous_refs = 1; +int repository_format_version; +const char *git_commit_encoding; +const char *git_log_output_encoding; +int shared_repository = PERM_UMASK; +const char *apply_default_whitespace; +const char *apply_default_ignorewhitespace; +int zlib_compression_level = Z_BEST_SPEED; +int core_compression_level; +int core_compression_seen; +int fsync_object_files; +size_t packed_git_window_size = DEFAULT_PACKED_GIT_WINDOW_SIZE; +size_t packed_git_limit = DEFAULT_PACKED_GIT_LIMIT; +size_t delta_base_cache_limit = 16 * 1024 * 1024; +const char *pager_program; +int pager_use_color = 1; +const char *editor_program; +const char *excludes_file; +enum auto_crlf auto_crlf = AUTO_CRLF_FALSE; +int read_replace_refs = 1; +enum eol eol = EOL_UNSET; +enum safe_crlf safe_crlf = SAFE_CRLF_WARN; +unsigned whitespace_rule_cfg = WS_DEFAULT_RULE; +enum branch_track git_branch_track = BRANCH_TRACK_REMOTE; +enum rebase_setup_type autorebase = AUTOREBASE_NEVER; +enum push_default_type push_default = PUSH_DEFAULT_MATCHING; +#ifndef OBJECT_CREATION_MODE +#define OBJECT_CREATION_MODE OBJECT_CREATION_USES_HARDLINKS +#endif +enum object_creation_mode object_creation_mode = OBJECT_CREATION_MODE; +char *notes_ref_name; +int grafts_replace_parents = 1; +int core_apply_sparse_checkout; + +/* Parallel index stat data preload? */ +int core_preload_index = 0; + +/* This is set by setup_git_dir_gently() and/or git_default_config() */ +char *git_work_tree_cfg; +static char *work_tree; + +static const char *git_dir; +static char *git_object_dir, *git_index_file, *git_refs_dir, *git_graft_file; + +/* + * Repository-local GIT_* environment variables + * Remember to update local_repo_env_size in cache.h when + * the size of the list changes + */ +const char * const local_repo_env[LOCAL_REPO_ENV_SIZE + 1] = { + ALTERNATE_DB_ENVIRONMENT, + CONFIG_ENVIRONMENT, + DB_ENVIRONMENT, + GIT_DIR_ENVIRONMENT, + GIT_WORK_TREE_ENVIRONMENT, + GRAFT_ENVIRONMENT, + INDEX_ENVIRONMENT, + NO_REPLACE_OBJECTS_ENVIRONMENT, + NULL +}; + +static void setup_git_env(void) +{ + git_dir = getenv(GIT_DIR_ENVIRONMENT); + if (!git_dir) + git_dir = read_gitfile_gently(DEFAULT_GIT_DIR_ENVIRONMENT); + if (!git_dir) + git_dir = DEFAULT_GIT_DIR_ENVIRONMENT; + git_object_dir = getenv(DB_ENVIRONMENT); + if (!git_object_dir) { + git_object_dir = xmalloc(strlen(git_dir) + 9); + sprintf(git_object_dir, "%s/objects", git_dir); + } + git_refs_dir = xmalloc(strlen(git_dir) + 6); + sprintf(git_refs_dir, "%s/refs", git_dir); + git_index_file = getenv(INDEX_ENVIRONMENT); + if (!git_index_file) { + git_index_file = xmalloc(strlen(git_dir) + 7); + sprintf(git_index_file, "%s/index", git_dir); + } + git_graft_file = getenv(GRAFT_ENVIRONMENT); + if (!git_graft_file) + git_graft_file = git_pathdup("info/grafts"); + if (getenv(NO_REPLACE_OBJECTS_ENVIRONMENT)) + read_replace_refs = 0; +} + +int is_bare_repository(void) +{ + /* if core.bare is not 'false', let's see if there is a work tree */ + return is_bare_repository_cfg && !get_git_work_tree(); +} + +int have_git_dir(void) +{ + return !!git_dir; +} + +const char *get_git_dir(void) +{ + if (!git_dir) + setup_git_env(); + return git_dir; +} + +static int git_work_tree_initialized; + +/* + * Note. This works only before you used a work tree. This was added + * primarily to support git-clone to work in a new repository it just + * created, and is not meant to flip between different work trees. + */ +void set_git_work_tree(const char *new_work_tree) +{ + if (is_bare_repository_cfg >= 0) + die("cannot set work tree after initialization"); + git_work_tree_initialized = 1; + free(work_tree); + work_tree = xstrdup(make_absolute_path(new_work_tree)); + is_bare_repository_cfg = 0; +} + +const char *get_git_work_tree(void) +{ + if (!git_work_tree_initialized) { + work_tree = getenv(GIT_WORK_TREE_ENVIRONMENT); + /* core.bare = true overrides implicit and config work tree */ + if (!work_tree && is_bare_repository_cfg < 1) { + work_tree = git_work_tree_cfg; + /* make_absolute_path also normalizes the path */ + if (work_tree && !is_absolute_path(work_tree)) + work_tree = xstrdup(make_absolute_path(git_path("%s", work_tree))); + } else if (work_tree) + work_tree = xstrdup(make_absolute_path(work_tree)); + git_work_tree_initialized = 1; + if (work_tree) + is_bare_repository_cfg = 0; + } + return work_tree; +} + +char *get_object_directory(void) +{ + if (!git_object_dir) + setup_git_env(); + return git_object_dir; +} + +char *get_index_file(void) +{ + if (!git_index_file) + setup_git_env(); + return git_index_file; +} + +char *get_graft_file(void) +{ + if (!git_graft_file) + setup_git_env(); + return git_graft_file; +} + +int set_git_dir(const char *path) +{ + if (setenv(GIT_DIR_ENVIRONMENT, path, 1)) + return error("Could not set GIT_DIR to '%s'", path); + setup_git_env(); + return 0; +} |