| /* |
| * 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" |
| #include "refs.h" |
| #include "fmt-merge-msg.h" |
| #include "commit.h" |
| |
| int trust_executable_bit = 1; |
| int trust_ctime = 1; |
| int check_stat = 1; |
| int has_symlinks = 1; |
| int minimum_abbrev = 4, default_abbrev = -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 warn_on_object_refname_ambiguity = 1; |
| int ref_paranoia = -1; |
| int repository_format_precious_objects; |
| const char *git_commit_encoding; |
| const char *git_log_output_encoding; |
| const char *apply_default_whitespace; |
| const char *apply_default_ignorewhitespace; |
| const char *git_attributes_file; |
| const char *git_hooks_path; |
| 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 = 96 * 1024 * 1024; |
| unsigned long big_file_threshold = 512 * 1024 * 1024; |
| int pager_use_color = 1; |
| const char *editor_program; |
| const char *askpass_program; |
| const char *excludes_file; |
| enum auto_crlf auto_crlf = AUTO_CRLF_FALSE; |
| int check_replace_refs = 1; |
| char *git_replace_ref_base; |
| enum eol core_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_UNSPECIFIED; |
| #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; |
| int merge_log_config = -1; |
| int precomposed_unicode = -1; /* see probe_utf8_pathname_composition() */ |
| unsigned long pack_size_limit_cfg; |
| enum hide_dotfiles_type hide_dotfiles = HIDE_DOTFILES_DOTGITONLY; |
| |
| #ifndef PROTECT_HFS_DEFAULT |
| #define PROTECT_HFS_DEFAULT 0 |
| #endif |
| int protect_hfs = PROTECT_HFS_DEFAULT; |
| |
| #ifndef PROTECT_NTFS_DEFAULT |
| #define PROTECT_NTFS_DEFAULT 0 |
| #endif |
| int protect_ntfs = PROTECT_NTFS_DEFAULT; |
| |
| /* |
| * The character that begins a commented line in user-editable file |
| * that is subject to stripspace. |
| */ |
| char comment_line_char = '#'; |
| int auto_comment_line_char; |
| |
| /* Parallel index stat data preload? */ |
| int core_preload_index = 1; |
| |
| /* |
| * This is a hack for test programs like test-dump-untracked-cache to |
| * ensure that they do not modify the untracked cache when reading it. |
| * Do not use it otherwise! |
| */ |
| int ignore_untracked_cache_config; |
| |
| /* 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 *namespace; |
| static size_t namespace_len; |
| |
| static const char *super_prefix; |
| |
| static const char *git_dir, *git_common_dir; |
| static char *git_object_dir, *git_index_file, *git_graft_file; |
| int git_db_env, git_index_env, git_graft_env, git_common_dir_env; |
| |
| /* |
| * Repository-local GIT_* environment variables; see cache.h for details. |
| */ |
| const char * const local_repo_env[] = { |
| ALTERNATE_DB_ENVIRONMENT, |
| CONFIG_ENVIRONMENT, |
| CONFIG_DATA_ENVIRONMENT, |
| DB_ENVIRONMENT, |
| GIT_DIR_ENVIRONMENT, |
| GIT_WORK_TREE_ENVIRONMENT, |
| GIT_IMPLICIT_WORK_TREE_ENVIRONMENT, |
| GRAFT_ENVIRONMENT, |
| INDEX_ENVIRONMENT, |
| NO_REPLACE_OBJECTS_ENVIRONMENT, |
| GIT_REPLACE_REF_BASE_ENVIRONMENT, |
| GIT_PREFIX_ENVIRONMENT, |
| GIT_SUPER_PREFIX_ENVIRONMENT, |
| GIT_SHALLOW_FILE_ENVIRONMENT, |
| GIT_COMMON_DIR_ENVIRONMENT, |
| NULL |
| }; |
| |
| static char *expand_namespace(const char *raw_namespace) |
| { |
| struct strbuf buf = STRBUF_INIT; |
| struct strbuf **components, **c; |
| |
| if (!raw_namespace || !*raw_namespace) |
| return xstrdup(""); |
| |
| strbuf_addstr(&buf, raw_namespace); |
| components = strbuf_split(&buf, '/'); |
| strbuf_reset(&buf); |
| for (c = components; *c; c++) |
| if (strcmp((*c)->buf, "/") != 0) |
| strbuf_addf(&buf, "refs/namespaces/%s", (*c)->buf); |
| strbuf_list_free(components); |
| if (check_refname_format(buf.buf, 0)) |
| die("bad git namespace path \"%s\"", raw_namespace); |
| strbuf_addch(&buf, '/'); |
| return strbuf_detach(&buf, NULL); |
| } |
| |
| static char *git_path_from_env(const char *envvar, const char *git_dir, |
| const char *path, int *fromenv) |
| { |
| const char *value = getenv(envvar); |
| if (!value) |
| return xstrfmt("%s/%s", git_dir, path); |
| if (fromenv) |
| *fromenv = 1; |
| return xstrdup(value); |
| } |
| |
| static void setup_git_env(void) |
| { |
| struct strbuf sb = STRBUF_INIT; |
| const char *gitfile; |
| const char *shallow_file; |
| const char *replace_ref_base; |
| |
| git_dir = getenv(GIT_DIR_ENVIRONMENT); |
| if (!git_dir) |
| git_dir = DEFAULT_GIT_DIR_ENVIRONMENT; |
| gitfile = read_gitfile(git_dir); |
| git_dir = xstrdup(gitfile ? gitfile : git_dir); |
| if (get_common_dir(&sb, git_dir)) |
| git_common_dir_env = 1; |
| git_common_dir = strbuf_detach(&sb, NULL); |
| git_object_dir = git_path_from_env(DB_ENVIRONMENT, git_common_dir, |
| "objects", &git_db_env); |
| git_index_file = git_path_from_env(INDEX_ENVIRONMENT, git_dir, |
| "index", &git_index_env); |
| git_graft_file = git_path_from_env(GRAFT_ENVIRONMENT, git_common_dir, |
| "info/grafts", &git_graft_env); |
| if (getenv(NO_REPLACE_OBJECTS_ENVIRONMENT)) |
| check_replace_refs = 0; |
| replace_ref_base = getenv(GIT_REPLACE_REF_BASE_ENVIRONMENT); |
| git_replace_ref_base = xstrdup(replace_ref_base ? replace_ref_base |
| : "refs/replace/"); |
| namespace = expand_namespace(getenv(GIT_NAMESPACE_ENVIRONMENT)); |
| namespace_len = strlen(namespace); |
| shallow_file = getenv(GIT_SHALLOW_FILE_ENVIRONMENT); |
| if (shallow_file) |
| set_alternate_shallow_file(shallow_file, 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 startup_info->have_repository |
| || git_dir |
| || getenv(GIT_DIR_ENVIRONMENT); |
| } |
| |
| const char *get_git_dir(void) |
| { |
| if (!git_dir) |
| setup_git_env(); |
| return git_dir; |
| } |
| |
| const char *get_git_common_dir(void) |
| { |
| return git_common_dir; |
| } |
| |
| const char *get_git_namespace(void) |
| { |
| if (!namespace) |
| setup_git_env(); |
| return namespace; |
| } |
| |
| const char *strip_namespace(const char *namespaced_ref) |
| { |
| if (!starts_with(namespaced_ref, get_git_namespace())) |
| return NULL; |
| return namespaced_ref + namespace_len; |
| } |
| |
| const char *get_super_prefix(void) |
| { |
| static int initialized; |
| if (!initialized) { |
| super_prefix = getenv(GIT_SUPER_PREFIX_ENVIRONMENT); |
| initialized = 1; |
| } |
| return super_prefix; |
| } |
| |
| 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 (git_work_tree_initialized) { |
| new_work_tree = real_path(new_work_tree); |
| if (strcmp(new_work_tree, work_tree)) |
| die("internal error: work tree has already been set\n" |
| "Current worktree: %s\nNew worktree: %s", |
| work_tree, new_work_tree); |
| return; |
| } |
| git_work_tree_initialized = 1; |
| work_tree = xstrdup(real_path(new_work_tree)); |
| } |
| |
| const char *get_git_work_tree(void) |
| { |
| return work_tree; |
| } |
| |
| char *get_object_directory(void) |
| { |
| if (!git_object_dir) |
| setup_git_env(); |
| return git_object_dir; |
| } |
| |
| int odb_mkstemp(char *template, size_t limit, const char *pattern) |
| { |
| int fd; |
| /* |
| * we let the umask do its job, don't try to be more |
| * restrictive except to remove write permission. |
| */ |
| int mode = 0444; |
| snprintf(template, limit, "%s/%s", |
| get_object_directory(), pattern); |
| fd = git_mkstemp_mode(template, mode); |
| if (0 <= fd) |
| return fd; |
| |
| /* slow path */ |
| /* some mkstemp implementations erase template on failure */ |
| snprintf(template, limit, "%s/%s", |
| get_object_directory(), pattern); |
| safe_create_leading_directories(template); |
| return xmkstemp_mode(template, mode); |
| } |
| |
| int odb_pack_keep(char *name, size_t namesz, const unsigned char *sha1) |
| { |
| int fd; |
| |
| snprintf(name, namesz, "%s/pack/pack-%s.keep", |
| get_object_directory(), sha1_to_hex(sha1)); |
| fd = open(name, O_RDWR|O_CREAT|O_EXCL, 0600); |
| if (0 <= fd) |
| return fd; |
| |
| /* slow path */ |
| safe_create_leading_directories(name); |
| return open(name, O_RDWR|O_CREAT|O_EXCL, 0600); |
| } |
| |
| 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; |
| } |
| |
| const char *get_log_output_encoding(void) |
| { |
| return git_log_output_encoding ? git_log_output_encoding |
| : get_commit_output_encoding(); |
| } |
| |
| const char *get_commit_output_encoding(void) |
| { |
| return git_commit_encoding ? git_commit_encoding : "UTF-8"; |
| } |
| |
| static int the_shared_repository = PERM_UMASK; |
| static int need_shared_repository_from_config = 1; |
| |
| void set_shared_repository(int value) |
| { |
| the_shared_repository = value; |
| need_shared_repository_from_config = 0; |
| } |
| |
| int get_shared_repository(void) |
| { |
| if (need_shared_repository_from_config) { |
| const char *var = "core.sharedrepository"; |
| const char *value; |
| if (!git_config_get_value(var, &value)) |
| the_shared_repository = git_config_perm(var, value); |
| need_shared_repository_from_config = 0; |
| } |
| return the_shared_repository; |
| } |
| |
| void reset_shared_repository(void) |
| { |
| need_shared_repository_from_config = 1; |
| } |