%% -*- erlang-indent-level: 2 -*- %%----------------------------------------------------------------------- %% %CopyrightBegin% %% %% Copyright Ericsson AB 2006-2010. All Rights Reserved. %% %% The contents of this file are subject to the Erlang Public License, %% Version 1.1, (the "License"); you may not use this file except in %% compliance with the License. You should have received a copy of the %% Erlang Public License along with this software. If not, it can be %% retrieved online at http://www.erlang.org/. %% %% Software distributed under the License is distributed on an "AS IS" %% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See %% the License for the specific language governing rights and limitations %% under the License. %% %% %CopyrightEnd% %% -module(dialyzer_cl_parse). -export([start/0]). -export([collect_args/1]). % used also by typer_options.erl -include("dialyzer.hrl"). %%----------------------------------------------------------------------- -type dial_cl_parse_ret() :: {'check_init', #options{}} | {'plt_info', #options{}} | {'cl', #options{}} | {{'gui', 'gs' | 'wx'}, #options{}} | {'error', string()}. %%----------------------------------------------------------------------- -spec start() -> dial_cl_parse_ret(). start() -> init(), Args = init:get_plain_arguments(), try cl(Args) catch throw:{dialyzer_cl_parse_error, Msg} -> {error, Msg}; _:R -> Msg = io_lib:format("~p\n~p\n", [R, erlang:get_stacktrace()]), {error, lists:flatten(Msg)} end. cl(["--add_to_plt"|T]) -> put(dialyzer_options_analysis_type, plt_add), cl(T); cl(["--apps"|T]) -> T1 = get_lib_dir(T, []), {Args, T2} = collect_args(T1), append_var(dialyzer_options_files_rec, Args), cl(T2); cl(["--build_plt"|T]) -> put(dialyzer_options_analysis_type, plt_build), cl(T); cl(["--check_plt"|T]) -> put(dialyzer_options_analysis_type, plt_check), cl(T); cl(["-n"|T]) -> cl(["--no_check_plt"|T]); cl(["--no_check_plt"|T]) -> put(dialyzer_options_check_plt, false), cl(T); cl(["-nn"|T]) -> cl(["--no_native"|T]); cl(["--no_native"|T]) -> put(dialyzer_options_native, false), cl(T); cl(["--plt_info"|T]) -> put(dialyzer_options_analysis_type, plt_info), cl(T); cl(["--get_warnings"|T]) -> put(dialyzer_options_get_warnings, true), cl(T); cl(["-D"|_]) -> error("No defines specified after -D"); cl(["-D"++Define|T]) -> Def = re:split(Define, "=", [{return, list}]), append_defines(Def), cl(T); cl(["-h"|_]) -> help_message(); cl(["--help"|_]) -> help_message(); cl(["-I"]) -> error("no include directory specified after -I"); cl(["-I", Dir|T]) -> append_include(Dir), cl(T); cl(["-I"++Dir|T]) -> append_include(Dir), cl(T); cl(["-c"++_|T]) -> NewTail = command_line(T), cl(NewTail); cl(["-r"++_|T0]) -> {Args, T} = collect_args(T0), append_var(dialyzer_options_files_rec, Args), cl(T); cl(["--remove_from_plt"|T]) -> put(dialyzer_options_analysis_type, plt_remove), cl(T); cl(["--com"++_|T]) -> NewTail = command_line(T), cl(NewTail); cl(["--output"]) -> error("No outfile specified"); cl(["-o"]) -> error("No outfile specified"); cl(["--output",Output|T]) -> put(dialyzer_output, Output), cl(T); cl(["--output_plt"]) -> error("No outfile specified for --output_plt"); cl(["--output_plt",Output|T]) -> put(dialyzer_output_plt, Output), cl(T); cl(["-o", Output|T]) -> put(dialyzer_output, Output), cl(T); cl(["-o"++Output|T]) -> put(dialyzer_output, Output), cl(T); cl(["--raw"|T]) -> put(dialyzer_output_format, raw), cl(T); cl(["-pa", Path|T]) -> case code:add_patha(Path) of true -> cl(T); {error, _} -> error("Bad directory for -pa: "++Path) end; cl(["--plt", PLT|T]) -> put(dialyzer_init_plt, PLT), cl(T); cl(["--plt"]) -> error("No plt specified for --plt"); cl(["-q"|T]) -> put(dialyzer_options_report_mode, quiet), cl(T); cl(["--quiet"|T]) -> put(dialyzer_options_report_mode, quiet), cl(T); cl(["--src"|T]) -> put(dialyzer_options_from, src_code), cl(T); cl(["--no_spec"|T]) -> put(dialyzer_options_use_contracts, false), cl(T); cl(["-v"|_]) -> io:format("Dialyzer version "++?VSN++"\n"), erlang:halt(?RET_NOTHING_SUSPICIOUS); cl(["--version"|_]) -> io:format("Dialyzer version "++?VSN++"\n"), erlang:halt(?RET_NOTHING_SUSPICIOUS); cl(["--verbose"|T]) -> put(dialyzer_options_report_mode, verbose), cl(T); cl(["-W"|_]) -> error("-W given without warning"); cl(["-Whelp"|_]) -> help_warnings(); cl(["-W"++Warn|T]) -> append_var(dialyzer_warnings, [list_to_atom(Warn)]), cl(T); cl(["--dump_callgraph"]) -> error("No outfile specified for --dump_callgraph"); cl(["--dump_callgraph", File|T]) -> put(dialyzer_callgraph_file, File), cl(T); cl(["--gui"|T]) -> put(dialyzer_options_mode, {gui, gs}), cl(T); cl(["--wx"|T]) -> put(dialyzer_options_mode, {gui, wx}), cl(T); cl([H|_] = L) -> case filelib:is_file(H) orelse filelib:is_dir(H) of true -> NewTail = command_line(L), cl(NewTail); false -> error("Unknown option: " ++ H) end; cl([]) -> {RetTag, Opts} = case get(dialyzer_options_analysis_type) =:= plt_info of true -> put(dialyzer_options_analysis_type, plt_check), {plt_info, cl_options()}; false -> case get(dialyzer_options_mode) of {gui, _} = GUI -> {GUI, common_options()}; cl -> case get(dialyzer_options_analysis_type) =:= plt_check of true -> {check_init, cl_options()}; false -> {cl, cl_options()} end end end, case dialyzer_options:build(Opts) of {error, Msg} -> error(Msg); OptsRecord -> {RetTag, OptsRecord} end. %%----------------------------------------------------------------------- command_line(T0) -> {Args, T} = collect_args(T0), append_var(dialyzer_options_files, Args), %% if all files specified are ".erl" files, set the 'src' flag automatically case lists:all(fun(F) -> filename:extension(F) =:= ".erl" end, Args) of true -> put(dialyzer_options_from, src_code); false -> ok end, T. error(Str) -> Msg = lists:flatten(Str), throw({dialyzer_cl_parse_error, Msg}). init() -> put(dialyzer_options_mode, cl), put(dialyzer_options_files_rec, []), put(dialyzer_options_report_mode, normal), put(dialyzer_warnings, []), DefaultOpts = #options{}, put(dialyzer_include, DefaultOpts#options.include_dirs), put(dialyzer_options_defines, DefaultOpts#options.defines), put(dialyzer_options_files, DefaultOpts#options.files), put(dialyzer_output_format, formatted), put(dialyzer_options_check_plt, DefaultOpts#options.check_plt), ok. append_defines([Def, Val]) -> {ok, Tokens, _} = erl_scan:string(Val++"."), {ok, ErlVal} = erl_parse:parse_term(Tokens), append_var(dialyzer_options_defines, [{list_to_atom(Def), ErlVal}]); append_defines([Def]) -> append_var(dialyzer_options_defines, [{list_to_atom(Def), true}]). append_include(Dir) -> append_var(dialyzer_include, [Dir]). append_var(Var, List) when is_list(List) -> put(Var, get(Var) ++ List), ok. %%----------------------------------------------------------------------- -spec collect_args([string()]) -> {[string()], [string()]}. collect_args(List) -> collect_args_1(List, []). collect_args_1(["-"++_|_] = L, Acc) -> {lists:reverse(Acc), L}; collect_args_1([Arg|T], Acc) -> collect_args_1(T, [Arg|Acc]); collect_args_1([], Acc) -> {lists:reverse(Acc), []}. %%----------------------------------------------------------------------- cl_options() -> [{files, get(dialyzer_options_files)}, {files_rec, get(dialyzer_options_files_rec)}, {output_file, get(dialyzer_output)}, {output_format, get(dialyzer_output_format)}, {analysis_type, get(dialyzer_options_analysis_type)}, {get_warnings, get(dialyzer_options_get_warnings)}, {callgraph_file, get(dialyzer_callgraph_file)} |common_options()]. common_options() -> [{defines, get(dialyzer_options_defines)}, {from, get(dialyzer_options_from)}, {include_dirs, get(dialyzer_include)}, {init_plt, get(dialyzer_init_plt)}, {output_plt, get(dialyzer_output_plt)}, {report_mode, get(dialyzer_options_report_mode)}, {use_spec, get(dialyzer_options_use_contracts)}, {warnings, get(dialyzer_warnings)}, {check_plt, get(dialyzer_options_check_plt)}]. %%----------------------------------------------------------------------- get_lib_dir([H|T], Acc) -> NewElem = case code:lib_dir(list_to_atom(H)) of {error, bad_name} -> case H =:= "erts" of % hack for including erts in an un-installed system true -> filename:join(code:root_dir(), "erts/preloaded/ebin"); false -> H end; LibDir -> LibDir ++ "/ebin" end, get_lib_dir(T, [NewElem|Acc]); get_lib_dir([], Acc) -> lists:reverse(Acc). %%----------------------------------------------------------------------- help_warnings() -> S = warning_options_msg(), io:put_chars(S), erlang:halt(?RET_NOTHING_SUSPICIOUS). help_message() -> S = "Usage: dialyzer [--help] [--version] [--shell] [--quiet] [--verbose] [-pa dir]* [--plt plt] [-Ddefine]* [-I include_dir]* [--output_plt file] [-Wwarn]* [--src] [--gui | --wx] [files_or_dirs] [-r dirs] [--apps applications] [-o outfile] [--build_plt] [--add_to_plt] [--remove_from_plt] [--check_plt] [--no_check_plt] [--plt_info] [--get_warnings] [--no_native] Options: files_or_dirs (for backwards compatibility also as: -c files_or_dirs) Use Dialyzer from the command line to detect defects in the specified files or directories containing .erl or .beam files, depending on the type of the analysis -r dirs Same as the previous but the specified directories are searched recursively for subdirectories containing .erl or .beam files in them, depending on the type of analysis --apps applications Option typically used when building or modifying a PLT as in: dialyzer --build_plt --apps erts kernel stdlib mnesia ... to conveniently refer to library applications corresponding to the Erlang/OTP installation. However, the option is general and can also be used during analysis in order to refer to Erlang/OTP applications. In addition, file or directory names can also be included, as in: dialyzer --apps inets ssl ./ebin ../other_lib/ebin/my_module.beam -o outfile (or --output outfile) When using Dialyzer from the command line, send the analysis results to the specified \"outfile\" rather than to stdout --raw When using Dialyzer from the command line, output the raw analysis results (Erlang terms) instead of the formatted result. The raw format is easier to post-process (for instance, to filter warnings or to output HTML pages) --src Override the default, which is to analyze BEAM files, and analyze starting from Erlang source code instead -Dname (or -Dname=value) When analyzing from source, pass the define to Dialyzer (**) -I include_dir When analyzing from source, pass the include_dir to Dialyzer (**) -pa dir Include dir in the path for Erlang (useful when analyzing files that have '-include_lib()' directives) --output_plt file Store the plt at the specified file after building it --plt plt Use the specified plt as the initial plt (if the plt was built during setup the files will be checked for consistency) -Wwarn A family of options which selectively turn on/off warnings (for help on the names of warnings use dialyzer -Whelp) --shell Do not disable the Erlang shell while running the GUI --version (or -v) Prints the Dialyzer version and some more information and exits --help (or -h) Prints this message and exits --quiet (or -q) Makes Dialyzer a bit more quiet --verbose Makes Dialyzer a bit more verbose --build_plt The analysis starts from an empty plt and creates a new one from the files specified with -c and -r. Only works for beam files. Use --plt or --output_plt to override the default plt location. --add_to_plt The plt is extended to also include the files specified with -c and -r. Use --plt to specify wich plt to start from, and --output_plt to specify where to put the plt. Note that the analysis might include files from the plt if they depend on the new files. This option only works with beam files. --remove_from_plt The information from the files specified with -c and -r is removed from the plt. Note that this may cause a re-analysis of the remaining dependent files. --check_plt Checks the plt for consistency and rebuilds it if it is not up-to-date. Actually, this option is of rare use as it is on by default. --no_check_plt (or -n) Skip the plt check when running Dialyzer. Useful when working with installed plts that never change. --plt_info Makes Dialyzer print information about the plt and then quit. The plt can be specified with --plt. --get_warnings Makes Dialyzer emit warnings even when manipulating the plt. Only emits warnings for files that are actually analyzed. --dump_callgraph file Dump the call graph into the specified file whose format is determined by the file name extension. Supported extensions are: raw, dot, and ps. If something else is used as file name extension, default format '.raw' will be used. --no_native (or -nn) Bypass the native code compilation of some key files that dialyzer heuristically performs when dialyzing many files; this avoids the compilation time but it may result in (much) longer analysis time. --gui Use the gs-based GUI. --wx Use the wx-based GUI. Note: * denotes that multiple occurrences of these options are possible. ** options -D and -I work both from command-line and in the Dialyzer GUI; the syntax of defines and includes is the same as that used by \"erlc\". " ++ warning_options_msg() ++ " The exit status of the command line version is: 0 - No problems were encountered during the analysis and no warnings were emitted. 1 - Problems were encountered during the analysis. 2 - No problems were encountered, but warnings were emitted. ", io:put_chars(S), erlang:halt(?RET_NOTHING_SUSPICIOUS). warning_options_msg() -> "Warning options: -Wno_return Suppress warnings for functions that will never return a value. -Wno_unused Suppress warnings for unused functions. -Wno_improper_lists Suppress warnings for construction of improper lists. -Wno_tuple_as_fun Suppress warnings for using tuples instead of funs. -Wno_fun_app Suppress warnings for fun applications that will fail. -Wno_match Suppress warnings for patterns that are unused or cannot match. -Wno_opaque Suppress warnings for violations of opaqueness of data types. -Wunmatched_returns *** Include warnings for function calls which ignore a structured return value or do not match against one of many possible return value(s). -Werror_handling *** Include warnings for functions that only return by means of an exception. -Wrace_conditions *** Include warnings for possible race conditions. -Wbehaviours *** Include warnings about behaviour callbacks which drift from the published recommended interfaces. -Wunderspecs *** Warn about underspecified functions (those whose -spec is strictly more allowing than the success typing). The following options are also available but their use is not recommended: (they are mostly for Dialyzer developers and internal debugging) -Woverspecs *** Warn about overspecified functions (those whose -spec is strictly less allowing than the success typing). -Wspecdiffs *** Warn when the -spec is different than the success typing. *** Identifies options that turn on warnings rather than turning them off. ".