| /* |
| * 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 "branch.h" |
| #include "environment.h" |
| #include "repository.h" |
| #include "config.h" |
| #include "refs.h" |
| #include "fmt-merge-msg.h" |
| #include "commit.h" |
| #include "strvec.h" |
| #include "object-store.h" |
| #include "tmp-objdir.h" |
| #include "chdir-notify.h" |
| #include "shallow.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 warn_ambiguous_refs = 1; |
| int warn_on_object_refname_ambiguity = 1; |
| int repository_format_precious_objects; |
| int repository_format_worktree_config; |
| const char *git_commit_encoding; |
| const char *git_log_output_encoding; |
| char *apply_default_whitespace; |
| char *apply_default_ignorewhitespace; |
| const char *git_attributes_file; |
| const char *git_hooks_path; |
| int zlib_compression_level = Z_BEST_SPEED; |
| int pack_compression_level = Z_DEFAULT_COMPRESSION; |
| int fsync_object_files = -1; |
| int use_fsync = -1; |
| enum fsync_method fsync_method = FSYNC_METHOD_DEFAULT; |
| enum fsync_component fsync_components = FSYNC_COMPONENTS_DEFAULT; |
| 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 read_replace_refs = 1; |
| enum eol core_eol = EOL_UNSET; |
| int global_conv_flags_eol = CONV_EOL_RNDTRP_WARN; |
| char *check_roundtrip_encoding = "SHIFT-JIS"; |
| 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 core_sparse_checkout_cone; |
| int sparse_expect_files_outside_of_patterns; |
| int merge_log_config = -1; |
| int precomposed_unicode = -1; /* see probe_utf8_pathname_composition() */ |
| unsigned long pack_size_limit_cfg; |
| enum log_refs_config log_all_ref_updates = LOG_REFS_UNSET; |
| |
| #ifndef PROTECT_HFS_DEFAULT |
| #define PROTECT_HFS_DEFAULT 0 |
| #endif |
| int protect_hfs = PROTECT_HFS_DEFAULT; |
| |
| #ifndef PROTECT_NTFS_DEFAULT |
| #define PROTECT_NTFS_DEFAULT 1 |
| #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 set by setup_git_dir_gently() and/or git_default_config() */ |
| char *git_work_tree_cfg; |
| |
| static char *git_namespace; |
| |
| static char *super_prefix; |
| |
| /* |
| * Repository-local GIT_* environment variables; see cache.h for details. |
| */ |
| const char * const local_repo_env[] = { |
| ALTERNATE_DB_ENVIRONMENT, |
| CONFIG_ENVIRONMENT, |
| CONFIG_DATA_ENVIRONMENT, |
| CONFIG_COUNT_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); |
| } |
| |
| const char *getenv_safe(struct strvec *argv, const char *name) |
| { |
| const char *value = getenv(name); |
| |
| if (!value) |
| return NULL; |
| |
| strvec_push(argv, value); |
| return argv->v[argv->nr - 1]; |
| } |
| |
| void setup_git_env(const char *git_dir) |
| { |
| char *git_replace_ref_base; |
| const char *shallow_file; |
| const char *replace_ref_base; |
| struct set_gitdir_args args = { NULL }; |
| struct strvec to_free = STRVEC_INIT; |
| |
| args.commondir = getenv_safe(&to_free, GIT_COMMON_DIR_ENVIRONMENT); |
| args.object_dir = getenv_safe(&to_free, DB_ENVIRONMENT); |
| args.graft_file = getenv_safe(&to_free, GRAFT_ENVIRONMENT); |
| args.index_file = getenv_safe(&to_free, INDEX_ENVIRONMENT); |
| args.alternate_db = getenv_safe(&to_free, ALTERNATE_DB_ENVIRONMENT); |
| if (getenv(GIT_QUARANTINE_ENVIRONMENT)) { |
| args.disable_ref_updates = 1; |
| } |
| |
| repo_set_gitdir(the_repository, git_dir, &args); |
| strvec_clear(&to_free); |
| |
| if (getenv(NO_REPLACE_OBJECTS_ENVIRONMENT)) |
| read_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/"); |
| update_ref_namespace(NAMESPACE_REPLACE, git_replace_ref_base); |
| |
| free(git_namespace); |
| git_namespace = expand_namespace(getenv(GIT_NAMESPACE_ENVIRONMENT)); |
| shallow_file = getenv(GIT_SHALLOW_FILE_ENVIRONMENT); |
| if (shallow_file) |
| set_alternate_shallow_file(the_repository, 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 |
| || the_repository->gitdir; |
| } |
| |
| const char *get_git_dir(void) |
| { |
| if (!the_repository->gitdir) |
| BUG("git environment hasn't been setup"); |
| return the_repository->gitdir; |
| } |
| |
| const char *get_git_common_dir(void) |
| { |
| if (!the_repository->commondir) |
| BUG("git environment hasn't been setup"); |
| return the_repository->commondir; |
| } |
| |
| const char *get_git_namespace(void) |
| { |
| if (!git_namespace) |
| BUG("git environment hasn't been setup"); |
| return git_namespace; |
| } |
| |
| const char *strip_namespace(const char *namespaced_ref) |
| { |
| const char *out; |
| if (skip_prefix(namespaced_ref, get_git_namespace(), &out)) |
| return out; |
| return NULL; |
| } |
| |
| const char *get_super_prefix(void) |
| { |
| static int initialized; |
| if (!initialized) { |
| super_prefix = xstrdup_or_null(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) { |
| struct strbuf realpath = STRBUF_INIT; |
| |
| strbuf_realpath(&realpath, new_work_tree, 1); |
| new_work_tree = realpath.buf; |
| if (strcmp(new_work_tree, the_repository->worktree)) |
| die("internal error: work tree has already been set\n" |
| "Current worktree: %s\nNew worktree: %s", |
| the_repository->worktree, new_work_tree); |
| strbuf_release(&realpath); |
| return; |
| } |
| git_work_tree_initialized = 1; |
| repo_set_worktree(the_repository, new_work_tree); |
| } |
| |
| const char *get_git_work_tree(void) |
| { |
| return the_repository->worktree; |
| } |
| |
| const char *get_object_directory(void) |
| { |
| if (!the_repository->objects->odb) |
| BUG("git environment hasn't been setup"); |
| return the_repository->objects->odb->path; |
| } |
| |
| int odb_mkstemp(struct strbuf *temp_filename, 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; |
| git_path_buf(temp_filename, "objects/%s", pattern); |
| fd = git_mkstemp_mode(temp_filename->buf, mode); |
| if (0 <= fd) |
| return fd; |
| |
| /* slow path */ |
| /* some mkstemp implementations erase temp_filename on failure */ |
| git_path_buf(temp_filename, "objects/%s", pattern); |
| safe_create_leading_directories(temp_filename->buf); |
| return xmkstemp_mode(temp_filename->buf, mode); |
| } |
| |
| int odb_pack_keep(const char *name) |
| { |
| int fd; |
| |
| fd = open(name, O_RDWR|O_CREAT|O_EXCL, 0600); |
| if (0 <= fd) |
| return fd; |
| |
| /* slow path */ |
| safe_create_leading_directories_const(name); |
| return open(name, O_RDWR|O_CREAT|O_EXCL, 0600); |
| } |
| |
| char *get_index_file(void) |
| { |
| if (!the_repository->index_file) |
| BUG("git environment hasn't been setup"); |
| return the_repository->index_file; |
| } |
| |
| char *get_graft_file(struct repository *r) |
| { |
| if (!r->graft_file) |
| BUG("git environment hasn't been setup"); |
| return r->graft_file; |
| } |
| |
| static void set_git_dir_1(const char *path) |
| { |
| xsetenv(GIT_DIR_ENVIRONMENT, path, 1); |
| setup_git_env(path); |
| } |
| |
| static void update_relative_gitdir(const char *name UNUSED, |
| const char *old_cwd, |
| const char *new_cwd, |
| void *data UNUSED) |
| { |
| char *path = reparent_relative_path(old_cwd, new_cwd, get_git_dir()); |
| struct tmp_objdir *tmp_objdir = tmp_objdir_unapply_primary_odb(); |
| |
| trace_printf_key(&trace_setup_key, |
| "setup: move $GIT_DIR to '%s'", |
| path); |
| set_git_dir_1(path); |
| if (tmp_objdir) |
| tmp_objdir_reapply_primary_odb(tmp_objdir, old_cwd, new_cwd); |
| free(path); |
| } |
| |
| void set_git_dir(const char *path, int make_realpath) |
| { |
| struct strbuf realpath = STRBUF_INIT; |
| |
| if (make_realpath) { |
| strbuf_realpath(&realpath, path, 1); |
| path = realpath.buf; |
| } |
| |
| set_git_dir_1(path); |
| if (!is_absolute_path(path)) |
| chdir_notify_register(NULL, update_relative_gitdir, NULL); |
| |
| strbuf_release(&realpath); |
| } |
| |
| 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; |
| } |
| |
| int use_optional_locks(void) |
| { |
| return git_env_bool(GIT_OPTIONAL_LOCKS_ENVIRONMENT, 1); |
| } |
| |
| int print_sha1_ellipsis(void) |
| { |
| /* |
| * Determine if the calling environment contains the variable |
| * GIT_PRINT_SHA1_ELLIPSIS set to "yes". |
| */ |
| static int cached_result = -1; /* unknown */ |
| |
| if (cached_result < 0) { |
| const char *v = getenv("GIT_PRINT_SHA1_ELLIPSIS"); |
| cached_result = (v && !strcasecmp(v, "yes")); |
| } |
| return cached_result; |
| } |