open Types open Common open Tree open Global_checks let search_basedir file_name nb = let dir = Filename.dirname file_name in let config = Config_file.read dir in let nb = some_or config.Config_file.basedir nb in updir dir nb let basedir = ref "" let set_basedir per_files file = if !basedir = "" then let nb = List.length (split_at2 ':'':' (List.hd file.packages).package_name) - 1 in let dir = search_basedir file.file_name nb in lpush Tree.use_lib dir ; Config_file.read_any dir 1 ; read_packages_from_cache per_files dir ; if !Flags.verbose then print_endline_flush ("basedir is " ^ dir); basedir := dir let rec parse_file from_basedir require_name per_files file = try if !Flags.verbose then print_endline_flush ("parsing " ^ file) ; let build_time = Unix.time() in let command = match !Flags.expand_tabs with | Some width -> "expand -t " ^ string_of_int width | None -> "cat" in let channel = Unix.open_process_in (Printf.sprintf "%s \"%s\"" command file) in let lexbuf = Lexing.from_channel channel in try Info.start_a_new_file file ; let tokens = Lexer.get_token Lexer.token lexbuf in if not Build.debugging then ignore (Unix.close_process_in channel) ; let t = Parser_helper.parse_tokens Parser.prog tokens (Some lexbuf) in let per_file = get_global_info_from_package from_basedir require_name build_time t in set_basedir per_files per_file ; Global_checks.add_file_to_files per_files per_file ; let required_packages = collect (fun package -> package.required_packages) per_file.packages in required_packages, per_files with Failure s -> ( print_endline_flush s ; exit 1 ) with | Not_found -> internal_error "runaway Not_found" and parse_package_if_needed per_files (package_name, pos) = if List.mem package_name !Config_file.ignored_packages then [], per_files else let splitted = split_at2 ':'':' package_name in let rel_file = String.concat "/" splitted ^ ".pm" in (*print_endline_flush ("wondering about " ^ package_name) ;*) try let dir = findfile (Build.fake_packages_dir :: !use_lib) rel_file in let file = Info.file_to_absolute_file (dir ^ "/" ^ rel_file) in Config_file.read_any (Filename.dirname file) (List.length splitted) ; let already_done = try let per_file = Hashtbl.find per_files file in Some (collect (fun pkg -> pkg.required_packages) per_file.packages) with Not_found -> None in match already_done with | Some required_packages -> required_packages, per_files | None -> parse_file (dir = !basedir) (Some package_name) per_files file with Not_found -> print_endline_flush (Info.pos2sfull pos ^ Printf.sprintf "can't find package %s" package_name) ; [], per_files let rec parse_required_packages state already_done = function | [] -> state, already_done | e :: l -> if List.mem e already_done then parse_required_packages state already_done l else let el, state = parse_package_if_needed state e in parse_required_packages state (e :: already_done) (el @ l) let parse_options = let args_r = ref [] in let restrict_to_files = ref false in let pot_file = ref "" in let generate_pot_chosen file = Flags.generate_pot := true ; Flags.expand_tabs := None ; pot_file := file in let options = [ "-v", Arg.Set Flags.verbose, " be verbose" ; "-q", Arg.Set Flags.quiet, " be quiet" ; "-t", Arg.Int (fun i -> Flags.expand_tabs := Some i), " set the tabulation width (default is 8)" ; "--restrict-to-files", Arg.Set restrict_to_files, " only display warnings concerning the file(s) given on command line" ; "--no-cache", Arg.Set Flags.no_cache, " do not use cache" ; "--generate-pot", Arg.String generate_pot_chosen, "\n" ; "--check-unused-global-vars", Arg.Set Flags.check_unused_global_vars, " disable unused global functions & variables check" ^ "\nBasic warnings:"; "--no-check-white-space", Arg.Clear Flags.check_white_space, " disable white space check" ; "--no-suggest-simpler", Arg.Clear Flags.check_suggest_simpler, " disable simpler code suggestion" ; "--no-suggest-functional", Arg.Clear Flags.suggest_functional, " disable Functional Programming suggestions" ^ "\nNormalisation warnings:"; "--no-check-strange", Arg.Clear Flags.check_strange, " disable strange code check" ; "--no-check-complex-expressions", Arg.Clear Flags.check_complex_expressions, " disable complex expressions check" ; "--no-check-normalized-expressions", Arg.Clear Flags.normalized_expressions, " don't warn about non normalized expressions" ; "--no-help-perl-checker", Arg.Clear Flags.check_help_perl_checker, " beware, perl_checker doesn't understand all perl expressions, so those warnings *are* important" ^ "\nCommon warnings:"; "--no-check-void", Arg.Clear Flags.check_void, " disable dropped value check" ; "--no-check-names", Arg.Clear Flags.check_names, " disable variable & function usage check" ; "--no-check-prototypes", Arg.Clear Flags.check_prototypes, " disable prototypes check" ; "--no-check-import-export", Arg.Clear Flags.check_import_export, " disable inter modules check" ^ "\nImportant warnings:"; "--no-check-context", Arg.Clear Flags.check_context, " disable context check" ; "--no-check-traps", Arg.Clear Flags.check_traps, " disable traps (errors) check" ^ "\n"; ] in let usage = "Usage: perl_checker [] \nOptions are:" in Arg.parse options (lpush args_r) usage; let files = if !args_r = [] && Build.debugging then ["../t.pl"] else !args_r in let files = List.map Info.file_to_absolute_file files in let required_packages, per_files = collect_withenv (parse_file true None) (default_per_files()) files in let required_packages = uniq_ (fun (a,_) (b,_) -> a = b) required_packages in if !Flags.generate_pot then Parser_helper.generate_pot !pot_file else ( let per_files, required_packages = fluid_let Flags.quiet (!restrict_to_files || !Flags.quiet) (fun () -> parse_required_packages per_files [] required_packages) in let l_required_packages = List.map fst required_packages in write_packages_cache per_files !basedir ; (* removing non needed files from per_files (those files come from the cache) *) List.iter (fun k -> let per_file = Hashtbl.find per_files k in if per_file.require_name <> None && not (List.mem (some per_file.require_name) l_required_packages) && not (List.mem per_file.file_name files) then Hashtbl.remove per_files k ) (hashtbl_keys per_files); let state = default_state per_files in Hashtbl.iter (fun _ per_file -> List.iter (add_package_to_state state) per_file.packages) per_files ; let state = let global_vars_declared = Hashtbl.create 16 in let package_name_to_file_name = hashtbl_collect (fun _ per_file -> List.map (fun pkg -> pkg.package_name, per_file.file_name) per_file.packages) per_files in Hashtbl.iter (fun _ pkg -> let file_name = List.assoc pkg.package_name package_name_to_file_name in fluid_let Flags.quiet (!restrict_to_files || !Flags.quiet) (fun () -> get_vars_declaration global_vars_declared file_name pkg) ) state.per_packages ; arrange_global_vars_declared global_vars_declared state in let state = Global_checks.get_methods_available state in let l = hashtbl_values per_files in let l = if !restrict_to_files then List.filter (fun file -> List.mem file.file_name files) l else l in let l = uniq (collect (fun file -> List.map (fun pkg -> pkg.package_name) file.packages) l) in let l = List.map (Hashtbl.find state.per_packages) l in (* HACK: skip ignored_packages. Some package may have appeared in ignored_packages due to the xs bootstrap hack *) let l = List.filter (fun pkg -> not (List.mem pkg.package_name !Config_file.ignored_packages)) l in List.iter (Global_checks.check_tree state) l; if !Flags.check_unused_global_vars then List.iter Global_checks.check_unused_vars l )