diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/stdlib/src/escript.erl | 401 | ||||
| -rw-r--r-- | lib/stdlib/test/escript_SUITE.erl | 396 |
2 files changed, 650 insertions, 147 deletions
diff --git a/lib/stdlib/src/escript.erl b/lib/stdlib/src/escript.erl index 5958a58d7c..bf32e15209 100644 --- a/lib/stdlib/src/escript.erl +++ b/lib/stdlib/src/escript.erl @@ -19,11 +19,17 @@ -module(escript). %% Useful functions that can be called from scripts. --export([script_name/0, foldl/3]). +-export([script_name/0, create/2, extract/2]). +-export([foldl/3]). % Undocumented function that will be removed %% Internal API. -export([start/0, start/1]). +-include_lib("kernel/include/file.hrl"). + +-define(SHEBANG, "/usr/bin/env escript"). +-define(COMMENT, "This is an -*- erlang -*- file"). + -record(state, {file, module, forms_or_bin, @@ -32,46 +38,247 @@ mode, exports_main, has_records}). - +-record(sections, {type, + shebang, + comment, + emu_args, + body}). +-record(extract_options, {compile_source}). + +-type shebang() :: string(). +-type comment() :: string(). +-type emu_args() :: string(). +-type escript_filename() :: string(). +-type filename() :: string(). +-type zip_file() :: + filename() + | {filename(), binary()} + | {filename(), binary(), #file_info{}}. +-type zip_create_option() :: term(). +-type section() :: + shebang + | {shebang, shebang()} + | comment + | {comment, comment()} + | {emu_args, emu_args()} + | {source, filename() | binary()} + | {beam, filename() | binary()} + | {archive, filename() | binary()} + | {archive, [zip_file()], [zip_create_option()]}. + +%% Create a complete escript file with both header and body +-spec create(escript_filename() | binary, [section()]) -> + ok | {ok, binary()} | {error, term()}. + +create(File, Options) when is_list(Options) -> + try + S = prepare(Options, #sections{}), + BinList = + [Section || Section <- [S#sections.shebang, + S#sections.comment, + S#sections.emu_args, + S#sections.body], + Section =/= undefined], + case File of + binary -> + {ok, list_to_binary(BinList)}; + _ -> + case file:write_file(File, BinList) of + ok -> + ok; + {error, Reason} -> + {error, {Reason, File}} + end + end + catch + throw:PrepareReason -> + {error, PrepareReason} + end. + +prepare([H | T], S) -> + case H of + {shebang, undefined} -> + prepare(T, S); + shebang -> + prepare(T, S#sections{shebang = "#!" ++ ?SHEBANG ++ "\n"}); + {shebang, default} -> + prepare(T, S#sections{shebang = "#!" ++ ?SHEBANG ++ "\n"}); + {shebang, Shebang} when is_list(Shebang) -> + prepare(T, S#sections{shebang = "#!" ++ Shebang ++ "\n"}); + {comment, undefined} -> + prepare(T, S); + comment -> + prepare(T, S#sections{comment = "%% " ++ ?COMMENT ++ "\n"}); + {comment, default} -> + prepare(T, S#sections{comment = "%% " ++ ?COMMENT ++ "\n"}); + {comment, Comment} when is_list(Comment) -> + prepare(T, S#sections{comment = "%% " ++ Comment ++ "\n"}); + {emu_args, undefined} -> + prepare(T, S); + {emu_args, Args} when is_list(Args) -> + prepare(T, S#sections{emu_args = "%%!" ++ Args ++ "\n"}); + {Type, File} when is_list(File) -> + case file:read_file(File) of + {ok, Bin} -> + prepare(T, S#sections{type = Type, body = Bin}); + {error, Reason} -> + throw({Reason, H}) + end; + {Type, Bin} when is_binary(Bin) -> + prepare(T, S#sections{type = Type, body = Bin}); + {archive = Type, ZipFiles, ZipOptions} + when is_list(ZipFiles), is_list(ZipOptions) -> + File = "dummy.zip", + case zip:create(File, ZipFiles, ZipOptions ++ [memory]) of + {ok, {File, ZipBin}} -> + prepare(T, S#sections{type = Type, body = ZipBin}); + {error, Reason} -> + throw({Reason, H}) + end; + _ -> + throw({badarg, H}) + end; +prepare([], #sections{body = undefined}) -> + throw(missing_body); +prepare([], #sections{type = Type} = S) + when Type =:= source; Type =:= beam; Type =:= archive -> + S; +prepare([], #sections{type = Type}) -> + throw({illegal_type, Type}); +prepare(BadOptions, _) -> + throw({badarg, BadOptions}). + +-type section_name() :: shebang | comment | emu_args | body . +-type extract_option() :: compile_source | {section, [section_name()]}. +-spec extract(filename(), [extract_option()]) -> {ok, [section()]} | {error, term()}. +extract(File, Options) when is_list(File), is_list(Options) -> + try + EO = parse_extract_options(Options, + #extract_options{compile_source = false}), + {HeaderSz, NextLineNo, Fd, Sections} = + parse_header(File, not EO#extract_options.compile_source), + Type = Sections#sections.type, + case {Type, EO#extract_options.compile_source} of + {source, true} -> + Bin = compile_source(Type, File, Fd, NextLineNo, HeaderSz); + {_, _} -> + ok = file:close(Fd), + case file:read_file(File) of + {ok, <<_Header:HeaderSz/binary, Bin/binary>>} -> + ok; + {error, ReadReason} -> + Bin = get_rid_of_compiler_warning, + throw(ReadReason) + end + end, + return_sections(Sections, Bin) + catch + throw:Reason -> + {error, Reason} + end. + +parse_extract_options([H | T], EO) -> + case H of + compile_source -> + EO2 = EO#extract_options{compile_source = true}, + parse_extract_options(T, EO2); + _ -> + throw({badarg, H}) + end; +parse_extract_options([], EO) -> + EO. + +compile_source(Type, File, Fd, NextLineNo, HeaderSz) -> + {text, _Module, Forms, _HasRecs, _Mode} = + do_parse_file(Type, File, Fd, NextLineNo, HeaderSz, false), + ok = file:close(Fd), + case compile:forms(Forms, [return_errors, debug_info]) of + {ok, _, BeamBin} -> + BeamBin; + {error, Errors, Warnings} -> + throw({compile, [{errors, format_errors(Errors)}, + {warnings, format_errors(Warnings)}]}) + end. + +format_errors(CompileErrors) -> + [lists:flatten([File, ":", integer_to_list(LineNo), ": ", + Mod:format_error(Error)]) || + {File, FileErrors} <- CompileErrors, + {LineNo, Mod, Error} <- FileErrors]. + +return_sections(S, Bin) -> + {ok, [normalize_section(shebang, S#sections.shebang), + normalize_section(comment, S#sections.comment), + normalize_section(emu_args, S#sections.emu_args), + normalize_section(S#sections.type, Bin)]}. + +normalize_section(Name, undefined) -> + {Name, undefined}; +normalize_section(shebang, "#!" ++ Chars) -> + Chopped = string:strip(Chars, right, $\n), + Stripped = string:strip(Chopped, both), + if + Stripped =:= ?SHEBANG -> + {shebang, default}; + true -> + {shebang, Stripped} + end; +normalize_section(comment, Chars) -> + Chopped = string:strip(Chars, right, $\n), + Stripped = string:strip(string:strip(Chopped, left, $%), both), + if + Stripped =:= ?COMMENT -> + {comment, default}; + true -> + {comment, Stripped} + end; +normalize_section(emu_args, "%%!" ++ Chars) -> + Chopped = string:strip(Chars, right, $\n), + Stripped = string:strip(Chopped, both), + {emu_args, Stripped}; +normalize_section(Name, Chars) -> + {Name, Chars}. + +-spec script_name() -> string(). script_name() -> [ScriptName|_] = init:get_plain_arguments(), ScriptName. %% Apply Fun(Name, GetInfo, GetBin, Acc) for each file in the escript. -%% +%% %% Fun/2 must return a new accumulator which is passed to the next call. %% The function returns the final value of the accumulator. Acc0 is %% returned if the escript contain an empty archive. -%% +%% %% GetInfo/0 is a fun that returns a #file_info{} record for the file. %% GetBin/0 is a fun that returns a the contents of the file as a binary. %% %% An escript may contain erlang code, beam code or an archive: %% -%% archive - the Fun/2 will be applied for each file in the archive -%% beam - the Fun/2 will be applied once and GetInfo/0 returns the file +%% archive - the Fun/4 will be applied for each file in the archive +%% beam - the Fun/4 will be applied once and GetInfo/0 returns the file %% info for the (entire) escript file -%% erl - the Fun/2 will be applied once, GetInfo/0 returns the file +%% erl - the Fun/4 will be applied once, GetInfo/0 returns the file %% info for the (entire) escript file and the GetBin returns %% the compiled beam code -%%-spec foldl(fun((string(), -%% fun(() -> #file_info()), -%% fun(() -> binary() -> term()), -%% term()) -> term()), -%% term(), -%% string()). +-spec foldl(fun((string(), + fun(() -> #file_info{}), + fun(() -> binary()), + term()) -> term()), + term(), + string()) -> {ok, term()} | {error, term()}. foldl(Fun, Acc0, File) when is_function(Fun, 4) -> case parse_file(File, false) of {text, _, Forms, _HasRecs, _Mode} when is_list(Forms) -> - GetInfo = fun() -> file:read_file_info(File) end, + GetInfo = fun() -> {ok, FI} = file:read_file_info(File), FI end, GetBin = fun() -> case compile:forms(Forms, [return_errors, debug_info]) of {ok, _, BeamBin} -> BeamBin; {error, _Errors, _Warnings} -> - fatal("There were compilation errors.") + throw("There were compilation errors.") end end, try @@ -81,7 +288,7 @@ foldl(Fun, Acc0, File) when is_function(Fun, 4) -> {error, Reason} end; {beam, _, BeamBin, _HasRecs, _Mode} when is_binary(BeamBin) -> - GetInfo = fun() -> file:read_file_info(File) end, + GetInfo = fun() -> {ok, FI} = file:read_file_info(File), FI end, GetBin = fun() -> BeamBin end, try {ok, Fun(".", GetInfo, GetBin, Acc0)} @@ -110,11 +317,13 @@ foldl(Fun, Acc0, File) when is_function(Fun, 4) -> %% Internal API. %% +-spec start() -> no_return(). start() -> start([]). +-spec start([string()]) -> no_return(). start(EscriptOptions) -> - try + try %% Commands run using -run or -s are run in a process %% trap_exit set to false. Because this behaviour is %% surprising for users of escript, make sure to reset @@ -143,11 +352,11 @@ parse_and_run(File, Args, Options) -> parse_file(File, CheckOnly), Mode2 = case lists:member("d", Options) of - true -> + true -> debug; false -> case lists:member("c", Options) of - true -> + true -> compile; false -> case lists:member("i", Options) of @@ -177,7 +386,7 @@ parse_and_run(File, Args, Options) -> _Other -> fatal("There were compilation errors.") end - end; + end; is_binary(FormsOrBin) -> case Source of archive -> @@ -190,11 +399,13 @@ parse_and_run(File, Args, Options) -> true -> my_halt(0); false -> - Text = lists:concat(["Function ", Module, ":main/1 is not exported"]), + Text = lists:concat(["Function ", Module, + ":main/1 is not exported"]), fatal(Text) end; _ -> - Text = lists:concat(["Cannot load module ", Module, " from archive"]), + Text = lists:concat(["Cannot load module ", Module, + " from archive"]), fatal(Text) end; ok -> @@ -212,7 +423,7 @@ parse_and_run(File, Args, Options) -> run -> {module, Module} = code:load_binary(Module, File, FormsOrBin), run(Module, Args); - debug -> + debug -> [Base | Rest] = lists:reverse(filename:split(File)), Base2 = filename:basename(Base, code:objfile_extension()), Rest2 = @@ -222,8 +433,8 @@ parse_and_run(File, Args, Options) -> end, SrcFile = filename:join(lists:reverse([Base2 ++ ".erl" | Rest2])), debug(Module, {Module, SrcFile, File, FormsOrBin}, Args) - end - end + end + end end. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% @@ -231,25 +442,19 @@ parse_and_run(File, Args, Options) -> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% parse_file(File, CheckOnly) -> - S = #state{file = File, - n_errors = 0, - mode = interpret, - exports_main = false, - has_records = false}, - {ok, Fd} = - case file:open(File, [read]) of - {ok, Fd0} -> - {ok, Fd0}; - {error, R} -> - fatal(lists:concat([file:format_error(R), ": '", File, "'"])) - end, - {HeaderSz, StartLine, ScriptType} = skip_header(Fd, 1), + {HeaderSz, NextLineNo, Fd, Sections} = + parse_header(File, false), + do_parse_file(Sections#sections.type, + File, Fd, NextLineNo, HeaderSz, CheckOnly). + +do_parse_file(Type, File, Fd, NextLineNo, HeaderSz, CheckOnly) -> + S = initial_state(File), #state{mode = Mode, source = Source, module = Module, forms_or_bin = FormsOrBin, has_records = HasRecs} = - case ScriptType of + case Type of archive -> %% Archive file ok = file:close(Fd), @@ -260,51 +465,93 @@ parse_file(File, CheckOnly) -> parse_beam(S, File, HeaderSz, CheckOnly); source -> %% Source code - parse_source(S, File, Fd, StartLine, HeaderSz, CheckOnly) + parse_source(S, File, Fd, NextLineNo, HeaderSz, CheckOnly) end, {Source, Module, FormsOrBin, HasRecs, Mode}. +initial_state(File) -> + #state{file = File, + n_errors = 0, + mode = interpret, + exports_main = false, + has_records = false}. + %% Skip header and make a heuristic guess about the script type -skip_header(P, LineNo) -> +parse_header(File, KeepFirst) -> + LineNo = 1, + {ok, Fd} = + case file:open(File, [read]) of + {ok, Fd0} -> + {ok, Fd0}; + {error, R} -> + fatal(lists:concat([file:format_error(R), ": '", File, "'"])) + end, + %% Skip shebang on first line - {ok, HeaderSz0} = file:position(P, cur), - Line1 = get_line(P), + {ok, HeaderSz0} = file:position(Fd, cur), + Line1 = get_line(Fd), case classify_line(Line1) of shebang -> - find_first_body_line(P, LineNo); + find_first_body_line(Fd, HeaderSz0, LineNo, KeepFirst, + #sections{shebang = Line1}); archive -> - {HeaderSz0, LineNo, archive}; + {HeaderSz0, LineNo, Fd, + #sections{type = archive}}; beam -> - {HeaderSz0, LineNo, beam}; + {HeaderSz0, LineNo, Fd, + #sections{type = beam}}; _ -> - find_first_body_line(P, LineNo) + find_first_body_line(Fd, HeaderSz0, LineNo, KeepFirst, + #sections{}) end. -find_first_body_line(P, LineNo) -> - {ok, HeaderSz1} = file:position(P, cur), +find_first_body_line(Fd, HeaderSz0, LineNo, KeepFirst, Sections) -> + {ok, HeaderSz1} = file:position(Fd, cur), %% Look for special comment on second line - Line2 = get_line(P), - {ok, HeaderSz2} = file:position(P, cur), + Line2 = get_line(Fd), + {ok, HeaderSz2} = file:position(Fd, cur), case classify_line(Line2) of emu_args -> %% Skip special comment on second line - Line3 = get_line(P), - {HeaderSz2, LineNo + 2, guess_type(Line3)}; - _ -> + Line3 = get_line(Fd), + {HeaderSz2, LineNo + 2, Fd, + Sections#sections{type = guess_type(Line3), + comment = undefined, + emu_args = Line2}}; + Line2Type -> %% Look for special comment on third line - Line3 = get_line(P), - {ok, HeaderSz3} = file:position(P, cur), - case classify_line(Line3) of - emu_args -> + Line3 = get_line(Fd), + {ok, HeaderSz3} = file:position(Fd, cur), + Line3Type = classify_line(Line3), + if + Line3Type =:= emu_args -> %% Skip special comment on third line - Line4 = get_line(P), - {HeaderSz3, LineNo + 3, guess_type(Line4)}; - _ -> + Line4 = get_line(Fd), + {HeaderSz3, LineNo + 3, Fd, + Sections#sections{type = guess_type(Line4), + comment = Line2, + emu_args = Line3}}; + Sections#sections.shebang =:= undefined, + KeepFirst =:= true -> + %% No shebang. Use the entire file + {HeaderSz0, LineNo, Fd, + Sections#sections{type = guess_type(Line2)}}; + Sections#sections.shebang =:= undefined -> + %% No shebang. Skip the first line + {HeaderSz1, LineNo, Fd, + Sections#sections{type = guess_type(Line2)}}; + Line2Type =:= comment -> + %% Skip shebang on first line and comment on second + {HeaderSz2, LineNo + 2, Fd, + Sections#sections{type = guess_type(Line3), + comment = Line2}}; + true -> %% Just skip shebang on first line - {HeaderSz1, LineNo + 1, guess_type(Line2)} + {HeaderSz1, LineNo + 1, Fd, + Sections#sections{type = guess_type(Line2)}} end end. - + classify_line(Line) -> case Line of [$\#, $\! | _] -> @@ -313,8 +560,10 @@ classify_line(Line) -> archive; [$F, $O, $R, $1 | _] -> beam; - [$\%, $\%, $\! | _] -> + [$%, $%, $\! | _] -> emu_args; + [$% | _] -> + comment; _ -> undefined end. @@ -336,8 +585,8 @@ get_line(P) -> parse_archive(S, File, HeaderSz) -> case file:read_file(File) of - {ok, <<_FirstLine:HeaderSz/binary, Bin/binary>>} -> - Mod = + {ok, <<_Header:HeaderSz/binary, Bin/binary>>} -> + Mod = case init:get_argument(escript) of {ok, [["main", M]]} -> %% Use explicit module name @@ -345,14 +594,14 @@ parse_archive(S, File, HeaderSz) -> _ -> %% Use escript name without extension as module name RevBase = lists:reverse(filename:basename(File)), - RevBase2 = + RevBase2 = case lists:dropwhile(fun(X) -> X =/= $. end, RevBase) of [$. | Rest] -> Rest; [] -> RevBase end, list_to_atom(lists:reverse(RevBase2)) end, - + S#state{source = archive, mode = run, module = Mod, @@ -365,7 +614,7 @@ parse_archive(S, File, HeaderSz) -> parse_beam(S, File, HeaderSz, CheckOnly) -> - {ok, <<_FirstLine:HeaderSz/binary, Bin/binary>>} = + {ok, <<_Header:HeaderSz/binary, Bin/binary>>} = file:read_file(File), case beam_lib:chunks(Bin, [exports]) of {ok, {Module, [{exports, Exports}]}} -> @@ -399,7 +648,7 @@ parse_source(S, File, Fd, StartLine, HeaderSz, CheckOnly) -> {ok, FileForm} = epp:parse_erl_form(Epp), OptModRes = epp:parse_erl_form(Epp), S2 = S#state{source = text, module = Module}, - S3 = + S3 = case OptModRes of {ok, {attribute,_, module, M} = Form} -> epp_parse_file(Epp, S2#state{module = M}, [Form, FileForm]); @@ -448,12 +697,12 @@ check_source(S, CheckOnly) -> pre_def_macros(File) -> {MegaSecs, Secs, MicroSecs} = erlang:now(), - Replace = fun(Char) -> + Replace = fun(Char) -> case Char of $\. -> $\_; _ -> Char end - end, + end, CleanBase = lists:map(Replace, filename:basename(File)), ModuleStr = CleanBase ++ "__" ++ @@ -642,8 +891,8 @@ eval_exprs([E|Es], Bs0, Lf, Ef, RBs) -> eval_exprs(Es, Bs, Lf, Ef, RBs). format_exception(Class, Reason) -> - PF = fun(Term, I) -> - io_lib:format("~." ++ integer_to_list(I) ++ "P", [Term, 50]) + PF = fun(Term, I) -> + io_lib:format("~." ++ integer_to_list(I) ++ "P", [Term, 50]) end, StackTrace = erlang:get_stacktrace(), StackFun = fun(M, _F, _A) -> (M =:= erl_eval) or (M =:= ?MODULE) end, @@ -651,7 +900,7 @@ format_exception(Class, Reason) -> fatal(Str) -> throw(Str). - + my_halt(Reason) -> case process_info(group_leader(), status) of {_,waiting} -> @@ -675,7 +924,7 @@ hidden_apply(App, M, F, Args) -> Arity = length(Args), Text = io_lib:format("Call to ~w:~w/~w in application ~w failed.\n", [M, F, Arity, App]), - fatal(Text); + fatal(Text); Stk -> erlang:raise(error, undef, Stk) end diff --git a/lib/stdlib/test/escript_SUITE.erl b/lib/stdlib/test/escript_SUITE.erl index f36ae34633..77fd190e45 100644 --- a/lib/stdlib/test/escript_SUITE.erl +++ b/lib/stdlib/test/escript_SUITE.erl @@ -22,16 +22,20 @@ init_per_testcase/2, fin_per_testcase/2, basic/1, - errors/1, + errors/1, strange_name/1, emulator_flags/1, module_script/1, beam_script/1, archive_script/1, - epp/1 + epp/1, + create_and_extract/1, + foldl/1, + verify_sections/3 ]). -include("test_server.hrl"). +-include_lib("kernel/include/file.hrl"). all(suite) -> [ @@ -42,7 +46,9 @@ all(suite) -> module_script, beam_script, archive_script, - epp + epp, + create_and_extract, + foldl ]. init_per_testcase(_Case, Config) -> @@ -68,11 +74,11 @@ basic(Config) when is_list(Config) -> ?line run(Dir, "factorial_warning 20", [data_dir,<<"factorial_warning:12: Warning: function bar/0 is unused\n" "factorial 20 = 2432902008176640000\nExitCode:0">>]), - ?line run(Dir, "-s", "factorial_warning", + ?line run_with_opts(Dir, "-s", "factorial_warning", [data_dir,<<"factorial_warning:12: Warning: function bar/0 is unused\nExitCode:0">>]), - ?line run(Dir, "-s -i", "factorial_warning", + ?line run_with_opts(Dir, "-s -i", "factorial_warning", [data_dir,<<"factorial_warning:12: Warning: function bar/0 is unused\nExitCode:0">>]), - ?line run(Dir, "-c -s", "factorial_warning", + ?line run_with_opts(Dir, "-c -s", "factorial_warning", [data_dir,<<"factorial_warning:12: Warning: function bar/0 is unused\nExitCode:0">>]), ?line run(Dir, "filesize "++filename:join(?config(data_dir, Config),"filesize"), [data_dir,<<"filesize:11: Warning: function id/1 is unused\n324\nExitCode:0">>]), @@ -100,7 +106,7 @@ errors(Config) when is_list(Config) -> [data_dir,<<"lint_error:6: function main/1 already defined\n">>, data_dir,"lint_error:8: variable 'ExitCode' is unbound\n", <<"escript: There were compilation errors.\nExitCode:127">>]), - ?line run(Dir, "-s", "lint_error", + ?line run_with_opts(Dir, "-s", "lint_error", [data_dir,<<"lint_error:6: function main/1 already defined\n">>, data_dir,"lint_error:8: variable 'ExitCode' is unbound\n", <<"escript: There were compilation errors.\nExitCode:127">>]), @@ -140,31 +146,31 @@ module_script(Config) when is_list(Config) -> OrigFile = filename:join([Data,"emulator_flags"]), {ok, OrigBin} = file:read_file(OrigFile), ?line [Shebang, Mode, Flags | Source] = string:tokens(binary_to_list(OrigBin), "\n"), - ?line {ok, OrigFI} = file:read_file_info(OrigFile), + ?line {ok, OrigFI} = file:read_file_info(OrigFile), %% Write source file Priv = ?config(priv_dir, Config), Dir = filename:absname(Priv), % Get rid of trailing slash. Base = "module_script", ErlFile = filename:join([Priv, Base ++ ".erl"]), - ErlCode = ["-module(", Base, ").\n", + ErlCode = ["\n-module(", Base, ").\n", "-export([main/1]).\n\n", string:join(Source, "\n"), "\n"], ?line ok = file:write_file(ErlFile, ErlCode), - + %%%%%%% %% Create and run scripts without emulator flags %% With shebang NoArgsBase = Base ++ "_no_args_with_shebang", NoArgsFile = filename:join([Priv, NoArgsBase]), - ?line ok = file:write_file(NoArgsFile, + ?line ok = file:write_file(NoArgsFile, [Shebang, "\n", ErlCode]), ?line ok = file:write_file_info(NoArgsFile, OrigFI), - - ?line run(Dir, NoArgsBase ++ " -arg1 arg2 arg3", + + ?line run(Dir, NoArgsBase ++ " -arg1 arg2 arg3", [<<"main:[\"-arg1\",\"arg2\",\"arg3\"]\n" "nostick:[]\n" "mnesia:[]\n" @@ -172,7 +178,7 @@ module_script(Config) when is_list(Config) -> "unknown:[]\n" "ExitCode:0">>]), - ?line run(Dir, "", NoArgsBase ++ " -arg1 arg2 arg3", + ?line run_with_opts(Dir, "", NoArgsBase ++ " -arg1 arg2 arg3", [<<"main:[\"-arg1\",\"arg2\",\"arg3\"]\n" "nostick:[]\n" "mnesia:[]\n" @@ -183,33 +189,33 @@ module_script(Config) when is_list(Config) -> %% Without shebang NoArgsBase2 = Base ++ "_no_args_without_shebang", NoArgsFile2 = filename:join([Priv, NoArgsBase2]), - ?line ok = file:write_file(NoArgsFile2, + ?line ok = file:write_file(NoArgsFile2, ["Something else than shebang!!!", "\n", ErlCode]), ?line ok = file:write_file_info(NoArgsFile2, OrigFI), - - ?line run(Dir, "", NoArgsBase2 ++ " -arg1 arg2 arg3", + + ?line run_with_opts(Dir, "", NoArgsBase2 ++ " -arg1 arg2 arg3", [<<"main:[\"-arg1\",\"arg2\",\"arg3\"]\n" "nostick:[]\n" "mnesia:[]\n" "ERL_FLAGS=false\n" "unknown:[]\n" "ExitCode:0">>]), - + %% Plain module without header NoArgsBase3 = Base ++ "_no_args_without_header", NoArgsFile3 = filename:join([Priv, NoArgsBase3]), ?line ok = file:write_file(NoArgsFile3, [ErlCode]), ?line ok = file:write_file_info(NoArgsFile3, OrigFI), - - ?line run(Dir, "", NoArgsBase3 ++ " -arg1 arg2 arg3", + + ?line run_with_opts(Dir, "", NoArgsBase3 ++ " -arg1 arg2 arg3", [<<"main:[\"-arg1\",\"arg2\",\"arg3\"]\n" "nostick:[]\n" "mnesia:[]\n" "ERL_FLAGS=false\n" "unknown:[]\n" "ExitCode:0">>]), - + %%%%%%% %% Create and run scripts with emulator flags @@ -217,12 +223,12 @@ module_script(Config) when is_list(Config) -> ArgsBase = Base ++ "_args_with_shebang", ArgsFile = filename:join([Priv, ArgsBase]), ?line ok = file:write_file(ArgsFile, - [Shebang, "\n", + [Shebang, "\n", Mode, "\n", Flags, "\n", ErlCode]), - ?line ok = file:write_file_info(ArgsFile, OrigFI), - + ?line ok = file:write_file_info(ArgsFile, OrigFI), + ?line run(Dir, ArgsBase ++ " -arg1 arg2 arg3", [<<"main:[\"-arg1\",\"arg2\",\"arg3\"]\n" "nostick:[{nostick,[]}]\n" @@ -242,32 +248,32 @@ beam_script(Config) when is_list(Config) -> OrigFile = filename:join([Data,"emulator_flags"]), {ok, OrigBin} = file:read_file(OrigFile), ?line [Shebang, Mode, Flags | Source] = string:tokens(binary_to_list(OrigBin), "\n"), - ?line {ok, OrigFI} = file:read_file_info(OrigFile), + ?line {ok, OrigFI} = file:read_file_info(OrigFile), %% Write source file Priv = ?config(priv_dir, Config), Dir = filename:absname(Priv), % Get rid of trailing slash. Base = "beam_script", ErlFile = filename:join([Priv, Base ++ ".erl"]), - ?line ok = file:write_file(ErlFile, - ["-module(", Base, ").\n", + ?line ok = file:write_file(ErlFile, + ["\n-module(", Base, ").\n", "-export([main/1]).\n\n", string:join(Source, "\n"), "\n"]), %% Compile the code ?line {ok, _Mod, BeamCode} = compile:file(ErlFile, [binary]), - + %%%%%%% %% Create and run scripts without emulator flags %% With shebang NoArgsBase = Base ++ "_no_args_with_shebang", NoArgsFile = filename:join([Priv, NoArgsBase]), - ?line ok = file:write_file(NoArgsFile, + ?line ok = file:write_file(NoArgsFile, [Shebang, "\n", BeamCode]), - ?line ok = file:write_file_info(NoArgsFile, OrigFI), + ?line ok = file:write_file_info(NoArgsFile, OrigFI), ?line run(Dir, NoArgsBase ++ " -arg1 arg2 arg3", [<<"main:[\"-arg1\",\"arg2\",\"arg3\"]\n" @@ -277,7 +283,7 @@ beam_script(Config) when is_list(Config) -> "unknown:[]\n" "ExitCode:0">>]), - ?line run(Dir, "", NoArgsBase ++ " -arg1 arg2 arg3", + ?line run_with_opts(Dir, "", NoArgsBase ++ " -arg1 arg2 arg3", [<<"main:[\"-arg1\",\"arg2\",\"arg3\"]\n" "nostick:[]\n" "mnesia:[]\n" @@ -288,12 +294,12 @@ beam_script(Config) when is_list(Config) -> %% Without shebang NoArgsBase2 = Base ++ "_no_args_without_shebang", NoArgsFile2 = filename:join([Priv, NoArgsBase2]), - ?line ok = file:write_file(NoArgsFile2, + ?line ok = file:write_file(NoArgsFile2, ["Something else than shebang!!!", "\n", BeamCode]), - ?line ok = file:write_file_info(NoArgsFile2, OrigFI), + ?line ok = file:write_file_info(NoArgsFile2, OrigFI), - ?line run(Dir, "", NoArgsBase2 ++ " -arg1 arg2 arg3", + ?line run_with_opts(Dir, "", NoArgsBase2 ++ " -arg1 arg2 arg3", [<<"main:[\"-arg1\",\"arg2\",\"arg3\"]\n" "nostick:[]\n" "mnesia:[]\n" @@ -305,9 +311,9 @@ beam_script(Config) when is_list(Config) -> NoArgsBase3 = Base ++ "_no_args_without_header", NoArgsFile3 = filename:join([Priv, NoArgsBase3]), ?line ok = file:write_file(NoArgsFile3, [BeamCode]), - ?line ok = file:write_file_info(NoArgsFile3, OrigFI), + ?line ok = file:write_file_info(NoArgsFile3, OrigFI), - ?line run(Dir, "", NoArgsBase3 ++ " -arg1 arg2 arg3", + ?line run_with_opts(Dir, "", NoArgsBase3 ++ " -arg1 arg2 arg3", [<<"main:[\"-arg1\",\"arg2\",\"arg3\"]\n" "nostick:[]\n" "mnesia:[]\n" @@ -322,12 +328,12 @@ beam_script(Config) when is_list(Config) -> ArgsBase = Base ++ "_args", ArgsFile = filename:join([Priv, ArgsBase]), ?line ok = file:write_file(ArgsFile, - [Shebang, "\n", + [Shebang, "\n", Mode, "\n", Flags, "\n", BeamCode]), - ?line ok = file:write_file_info(ArgsFile, OrigFI), - + ?line ok = file:write_file_info(ArgsFile, OrigFI), + ?line run(Dir, ArgsBase ++ " -arg1 arg2 arg3", [<<"main:[\"-arg1\",\"arg2\",\"arg3\"]\n" "nostick:[{nostick,[]}]\n" @@ -356,13 +362,13 @@ archive_script(Config) when is_list(Config) -> ?line ok = compile_app(TopDir, "archive_script_dict"), ?line ok = compile_app(TopDir, "archive_script_dummy"), ?line {ok, MainFiles} = file:list_dir(TopDir), - ?line ok = compile_files(MainFiles, TopDir, TopDir), - + ?line ok = compile_files(MainFiles, TopDir, TopDir), + %% Create the archive {ok, TopFiles} = file:list_dir(TopDir), ?line {ok, {_, ArchiveBin}} = zip:create(Archive, TopFiles, [memory, {compress, []}, {cwd, TopDir}]), - + %% Read the source script OrigFile = filename:join([DataDir, "emulator_flags"]), {ok, OrigBin} = file:read_file(OrigFile), @@ -371,73 +377,73 @@ archive_script(Config) when is_list(Config) -> Flags = "%%! -archive_script_dict foo bar" " -archive_script_dict foo" " -archive_script_dummy bar", - ?line {ok, OrigFI} = file:read_file_info(OrigFile), - + ?line {ok, OrigFI} = file:read_file_info(OrigFile), + %%%%%%% %% Create and run scripts without emulator flags - MainBase = "archive_script_main", - MainScript = filename:join([PrivDir, MainBase]), + MainBase = "archive_script_main", + MainScript = filename:join([PrivDir, MainBase]), %% With shebang - ?line ok = file:write_file(MainScript, + ?line ok = file:write_file(MainScript, [Shebang, "\n", Flags, "\n", ArchiveBin]), - ?line ok = file:write_file_info(MainScript, OrigFI), - + ?line ok = file:write_file_info(MainScript, OrigFI), + ?line run(PrivDir, MainBase ++ " -arg1 arg2 arg3", - [<<"main:[\"-arg1\",\"arg2\",\"arg3\"]\n" + [<<"main:[\"-arg1\",\"arg2\",\"arg3\"]\n" "dict:[{archive_script_dict,[\"foo\",\"bar\"]},{archive_script_dict,[\"foo\"]}]\n" "dummy:[{archive_script_dummy,[\"bar\"]}]\n" "priv:{ok,<<\"Some private data...\\n\">>}\n" "ExitCode:0">>]), - ?line run(PrivDir, "", MainBase ++ " -arg1 arg2 arg3", - [<<"main:[\"-arg1\",\"arg2\",\"arg3\"]\n" + ?line run_with_opts(PrivDir, "", MainBase ++ " -arg1 arg2 arg3", + [<<"main:[\"-arg1\",\"arg2\",\"arg3\"]\n" "dict:[{archive_script_dict,[\"foo\",\"bar\"]},{archive_script_dict,[\"foo\"]}]\n" "dummy:[{archive_script_dummy,[\"bar\"]}]\n" "priv:{ok,<<\"Some private data...\\n\">>}\n" "ExitCode:0">>]), - + ?line ok = file:rename(MainScript, MainScript ++ "_with_shebang"), %% Without shebang (no flags) - ?line ok = file:write_file(MainScript, + ?line ok = file:write_file(MainScript, ["Something else than shebang!!!", "\n", ArchiveBin]), - ?line ok = file:write_file_info(MainScript, OrigFI), - - ?line run(PrivDir, "", MainBase ++ " -arg1 arg2 arg3", - [<<"main:[\"-arg1\",\"arg2\",\"arg3\"]\n" + ?line ok = file:write_file_info(MainScript, OrigFI), + + ?line run_with_opts(PrivDir, "", MainBase ++ " -arg1 arg2 arg3", + [<<"main:[\"-arg1\",\"arg2\",\"arg3\"]\n" "dict:[]\n" "dummy:[]\n" "priv:{ok,<<\"Some private data...\\n\">>}\n" "ExitCode:0">>]), ?line ok = file:rename(MainScript, MainScript ++ "_without_shebang"), - + %% Plain archive without header (no flags) - + ?line ok = file:write_file(MainScript, [ArchiveBin]), - ?line ok = file:write_file_info(MainScript, OrigFI), - - ?line run(PrivDir, "", MainBase ++ " -arg1 arg2 arg3", - [<<"main:[\"-arg1\",\"arg2\",\"arg3\"]\n" + ?line ok = file:write_file_info(MainScript, OrigFI), + + ?line run_with_opts(PrivDir, "", MainBase ++ " -arg1 arg2 arg3", + [<<"main:[\"-arg1\",\"arg2\",\"arg3\"]\n" "dict:[]\n" "dummy:[]\n" "priv:{ok,<<\"Some private data...\\n\">>}\n" "ExitCode:0">>]), ?line ok = file:rename(MainScript, MainScript ++ "_without_header"), - + %%%%%%% %% Create and run scripts with emulator flags AltBase = "archive_script_alternate_main", AltScript = filename:join([PrivDir, AltBase]), - ?line ok = file:write_file(AltScript, + ?line ok = file:write_file(AltScript, [Shebang, "\n", Mode, "\n", Flags, " -escript main archive_script_main2\n", ArchiveBin]), - ?line ok = file:write_file_info(AltScript, OrigFI), + ?line ok = file:write_file_info(AltScript, OrigFI), ?line run(PrivDir, AltBase ++ " -arg1 arg2 arg3", [<<"main2:[\"-arg1\",\"arg2\",\"arg3\"]\n" @@ -445,7 +451,7 @@ archive_script(Config) when is_list(Config) -> "dummy:[{archive_script_dummy,[\"bar\"]}]\n" "priv:{ok,<<\"Some private data...\\n\">>}\n" "ExitCode:0">>]), - + ok. compile_app(TopDir, AppName) -> @@ -482,6 +488,254 @@ epp(Config) when is_list(Config) -> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +create_and_extract(Config) when is_list(Config) -> + {NewFile, FileInfo, + EmuArg, Source, + _ErlBase, ErlCode, + _BeamBase, BeamCode, + ArchiveBin} = + prepare_creation("create_and_extract", Config), + + Bodies = + [[{source, ErlCode}], + [{beam, BeamCode}], + [{archive, ArchiveBin}]], + + %% Verify all combinations of scripts with shebangs + [verify_sections(NewFile, FileInfo, S ++ C ++ E ++ B) || + S <- [[{shebang, default}], + [{shebang, "/usr/bin/env escript"}]], + C <- [[], + [{comment, undefined}], + [{comment, default}], + [{comment, "This is a nonsense comment"}]], + E <- [[], + [{emu_args, undefined}], + [{emu_args, EmuArg}]], + B <- [[{source, Source}] | Bodies]], + + %% Verify all combinations of scripts without shebangs + [verify_sections(NewFile, FileInfo, S ++ C ++ E ++ B) || + S <- [[], [{shebang, undefined}]], + C <- [[], [{comment, undefined}]], + E <- [[], [{emu_args, undefined}]], + B <- Bodies], + + %% Verify the compile_source option + file:delete(NewFile), + ?line ok = escript:create(NewFile, [{source, Source}]), + ?line {ok, [_, _, _, {source, Source}]} = escript:extract(NewFile, []), + ?line {ok, [_, _, _, {source, BeamCode2}]} = + escript:extract(NewFile, [compile_source]), + verify_sections(NewFile, FileInfo, + [{shebang, default}, + {comment, default}, + {beam, BeamCode2}]), + + file:delete(NewFile), + ok. + +prepare_creation(Base, Config) -> + %% Read the source + PrivDir = ?config(priv_dir, Config), + DataDir = ?config(data_dir, Config), + OrigFile = filename:join([DataDir,"emulator_flags"]), + ?line {ok, FileInfo} = file:read_file_info(OrigFile), + NewFile = filename:join([PrivDir, Base]), + ?line {ok, [{shebang, default}, + {comment, _}, + {emu_args, EmuArg}, + {source, Source}]} = + escript:extract(OrigFile, []), + + %% Compile the code + ErlFile = NewFile ++ ".erl", + ErlCode = list_to_binary(["\n-module(", Base, ").\n", + "-export([main/1]).\n\n", + Source, "\n\n"]), + ?line ok = file:write_file(ErlFile, ErlCode), + + %% Compile the code + ?line {ok, _Mod, BeamCode} = + compile:file(ErlFile, [binary, debug_info]), + + %% Create an archive + ?line {ok, {_, ArchiveBin}} = + zip:create("dummy_archive_name", + [{Base ++ ".erl", ErlCode}, + {Base ++ ".beam", BeamCode}], + [{compress, []}, memory]), + {NewFile, FileInfo, + EmuArg, Source, + Base ++ ".erl", ErlCode, + Base ++ ".beam", BeamCode, + ArchiveBin}. + +verify_sections(File, FileInfo, Sections) -> + io:format("~p:verify_sections(\n\t~p,\n\t~p,\n\t~p).\n", + [?MODULE, File, FileInfo, Sections]), + + %% Create + file:delete(File), + ?line ok = escript:create(File, Sections), + ?line ok = file:write_file_info(File, FileInfo), + + %% Run + Dir = filename:absname(filename:dirname(File)), + Base = filename:basename(File), + + HasArg = fun(Tag) -> + case lists:keysearch(Tag, 1, Sections) of + false -> false; + {value, {_, undefined}} -> false; + {value, _} -> true + end + end, + ExpectedMain = <<"main:[\"-arg1\",\"arg2\",\"arg3\"]\n">>, + ExpectedOutput = + case HasArg(emu_args) of + true -> + <<"nostick:[{nostick,[]}]\n" + "mnesia:[{mnesia,[\"dir\",\"a/directory\"]},{mnesia,[\"debug\",\"verbose\"]}]\n" + "ERL_FLAGS=false\n" + "unknown:[]\n" + "ExitCode:0">>; + false -> + <<"nostick:[]\nmnesia:[]\nERL_FLAGS=false\nunknown:[]\nExitCode:0">> + end, + + InputArgs = Base ++ " -arg1 arg2 arg3", + Expected = <<ExpectedMain/binary, ExpectedOutput/binary>>, + case HasArg(shebang) of + true -> + ?line run(Dir, InputArgs, [Expected]); + false -> + ?line run_with_opts(Dir, [], InputArgs, [Expected]) + end, + + %% Verify + ?line {ok, Bin} = escript:create(binary, Sections), + ?line {ok, Read} = file:read_file(File), + ?line Bin = Read, % Assert + + Normalized = normalize_sections(Sections), + ?line {ok, Extracted} = escript:extract(File, []), + io:format("Normalized; ~p\n", [Normalized]), + io:format("Extracted ; ~p\n", [Extracted]), + ?line Normalized = Extracted, % Assert + ok. + +normalize_sections(Sections) -> + AtomToTuple = + fun(Val) -> + if + is_atom(Val) -> {Val, default}; + true -> Val + end + end, + case lists:map(AtomToTuple, [{K, V} || {K, V} <- Sections, V =/= undefined]) of + [{shebang, Shebang} | Rest] -> + [{shebang, Shebang} | + case Rest of + [{comment, Comment} | Rest2] -> + [{comment, Comment} | + case Rest2 of + [{emu_args, EmuArgs}, Body] -> + [{emu_args, EmuArgs}, Body]; + [Body] -> + [{emu_args, undefined}, Body] + end + ]; + [{emu_args, EmuArgs}, Body] -> + [{comment, undefined}, {emu_args, EmuArgs}, Body]; + [Body] -> + [{comment, undefined}, {emu_args, undefined}, Body] + end + ]; + [Body] -> + [{shebang, undefined}, {comment, undefined}, {emu_args, undefined}, Body] + end. +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% + +foldl(Config) when is_list(Config) -> + {NewFile, _FileInfo, + _EmuArg, _Source, + ErlBase, ErlCode, + BeamBase, _BeamCode, + ArchiveBin} = + prepare_creation("foldl", Config), + + Collect = fun(Name, GetInfo, GetBin, Acc) -> + [{Name, GetInfo(), GetBin()} | Acc] + end, + + %% Get line numbers and the file attribute right + SourceFile = NewFile ++ ".erl", + <<_:1/binary, ErlCode2/binary>> = ErlCode, + ?line ok = file:write_file(SourceFile, ErlCode2), + ?line {ok, _Mod, BeamCode} = + compile:file(SourceFile, [binary, debug_info]), + + %% Verify source script + ?line ok = escript:create(SourceFile, [{source, ErlCode}]), + ?line {ok, [{".", _, BeamCode2}]} + = escript_foldl(Collect, [], SourceFile), + + ?line {ok, Abstr} = beam_lib:chunks(BeamCode, [abstract_code]), + ?line {ok, Abstr2} = beam_lib:chunks(BeamCode2, [abstract_code]), + %% io:format("abstr1=~p\n", [Abstr]), + %% io:format("abstr2=~p\n", [Abstr2]), + ?line Abstr = Abstr2, % Assert + + %% Verify beam script + ?line ok = escript:create(NewFile, [{beam, BeamCode}]), + ?line {ok, [{".", _, BeamCode}]} + = escript_foldl(Collect, [], NewFile), + + %% Verify archive scripts + ?line ok = escript:create(NewFile, [{archive, ArchiveBin}]), + ?line {ok, [{BeamBase, #file_info{}, _}, + {ErlBase, #file_info{}, _}]} + = escript_foldl(Collect, [], NewFile), + + ArchiveFiles = [{ErlBase, ErlCode}, {BeamBase, BeamCode}], + ?line ok = escript:create(NewFile, [{archive, ArchiveFiles, []}]), + ?line {ok, [{BeamBase, _, _}, + {ErlBase, _, _}]} + = escript_foldl(Collect, [], NewFile), + + ok. + +escript_foldl(Fun, Acc, File) -> + code:ensure_loaded(zip), + case erlang:function_exported(zip, foldl, 3) of + true -> + emulate_escript_foldl(Fun, Acc, File); + false -> + escript:foldl(Fun, Acc, File) + end. + +emulate_escript_foldl(Fun, Acc, File) -> + case escript:extract(File, [compile_source]) of + {ok, [_Shebang, _Comment, _EmuArgs, Body]} -> + case Body of + {source, BeamCode} -> + GetInfo = fun() -> file:read_file_info(File) end, + GetBin = fun() -> BeamCode end, + {ok, Fun(".", GetInfo, GetBin, Acc)}; + {beam, BeamCode} -> + GetInfo = fun() -> file:read_file_info(File) end, + GetBin = fun() -> BeamCode end, + {ok, Fun(".", GetInfo, GetBin, Acc)}; + {archive, ArchiveBin} -> + zip:foldl(Fun, Acc, {File, ArchiveBin}) + end; + {error, Reason} -> + {error, Reason} + end. + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% + run(Dir, Cmd0, Expected0) -> Expected = iolist_to_binary(expected_output(Expected0, Dir)), Cmd = case os:type() of @@ -490,7 +744,7 @@ run(Dir, Cmd0, Expected0) -> end, do_run(Dir, Cmd, Expected). -run(Dir, Opts, Cmd0, Expected) -> +run_with_opts(Dir, Opts, Cmd0, Expected) -> Cmd = case os:type() of {win32,_} -> "escript " ++ Opts ++ " " ++ filename:nativename(Dir) ++ "\\" ++ Cmd0; _ -> "escript " ++ Opts ++ " " ++ Dir ++ "/" ++ Cmd0 @@ -533,8 +787,8 @@ expected_output([data_dir|T], Data) -> [filename:nativename(Data)++Slash|expected_output(T, Data)]; expected_output([H|T], Data) -> [H|expected_output(T, Data)]; -expected_output([], _) -> +expected_output([], _) -> []; -expected_output(Bin, _) when is_binary(Bin) -> +expected_output(Bin, _) when is_binary(Bin) -> Bin. |