diff options
Diffstat (limited to 'lib/stdlib')
| -rw-r--r-- | lib/stdlib/src/escript.erl | 88 |
1 files changed, 47 insertions, 41 deletions
diff --git a/lib/stdlib/src/escript.erl b/lib/stdlib/src/escript.erl index d26443f277..99e454f593 100644 --- a/lib/stdlib/src/escript.erl +++ b/lib/stdlib/src/escript.erl @@ -24,35 +24,41 @@ %% 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, +%%----------------------------------------------------------------------- + +-type mode() :: 'compile' | 'debug' | 'interpret' | 'run'. +-type source() :: 'archive' | 'beam' | 'text'. + +-record(state, {file :: file:filename(), + module :: module(), forms_or_bin, - source, - n_errors, - mode, - exports_main, - has_records}). --record(sections, {type, - shebang, - comment, - emu_args, - body}). --record(extract_options, {compile_source}). + source :: source(), + n_errors :: non_neg_integer(), + mode :: mode(), + exports_main :: boolean(), + has_records :: boolean()}). -type shebang() :: string(). -type comment() :: string(). -type emu_args() :: string(). --type escript_filename() :: string(). --type filename() :: string(). + +-record(sections, {type, + shebang :: shebang(), + comment :: comment(), + emu_args :: emu_args(), + body}). + +-record(extract_options, {compile_source}). + -type zip_file() :: - filename() - | {filename(), binary()} - | {filename(), binary(), #file_info{}}. + file:filename() + | {file:filename(), binary()} + | {file:filename(), binary(), file:file_info()}. -type zip_create_option() :: term(). -type section() :: shebang @@ -60,13 +66,15 @@ | comment | {comment, comment()} | {emu_args, emu_args()} - | {source, filename() | binary()} - | {beam, filename() | binary()} - | {archive, filename() | binary()} + | {source, file:filename() | binary()} + | {beam, file:filename() | binary()} + | {archive, file:filename() | binary()} | {archive, [zip_file()], [zip_create_option()]}. +%%----------------------------------------------------------------------- + %% Create a complete escript file with both header and body --spec create(escript_filename() | binary, [section()]) -> +-spec create(file:filename() | binary, [section()]) -> ok | {ok, binary()} | {error, term()}. create(File, Options) when is_list(Options) -> @@ -149,7 +157,9 @@ prepare(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()}. +-spec extract(file:filename(), [extract_option()]) -> + {ok, [section()]} | {error, term()}. + extract(File, Options) when is_list(File), is_list(Options) -> try EO = parse_extract_options(Options, @@ -239,6 +249,7 @@ normalize_section(Name, Chars) -> {Name, Chars}. -spec script_name() -> string(). + script_name() -> [ScriptName|_] = init:get_plain_arguments(), ScriptName. @@ -248,10 +259,12 @@ script_name() -> %% -spec start() -> no_return(). + start() -> start([]). -spec start([string()]) -> no_return(). + start(EscriptOptions) -> try %% Commands run using -run or -s are run in a process @@ -484,18 +497,12 @@ find_first_body_line(Fd, HeaderSz0, LineNo, KeepFirst, Sections) -> classify_line(Line) -> case Line of - [$\#, $\! | _] -> - shebang; - [$P, $K | _] -> - archive; - [$F, $O, $R, $1 | _] -> - beam; - [$%, $%, $\! | _] -> - emu_args; - [$% | _] -> - comment; - _ -> - undefined + "#!" ++ _ -> shebang; + "PK" ++ _ -> archive; + "FOR1" ++ _ -> beam; + "%%!" ++ _ -> emu_args; + "%" ++ _ -> comment; + _ -> undefined end. guess_type(Line) -> @@ -531,7 +538,6 @@ parse_archive(S, File, HeaderSz) -> end, list_to_atom(lists:reverse(RevBase2)) end, - S#state{source = archive, mode = run, module = Mod, @@ -587,8 +593,8 @@ parse_source(S, File, Fd, StartLine, HeaderSz, CheckOnly) -> epp_parse_file2(Epp, S2, [ModForm, FileForm], OptModRes); {error, _} -> epp_parse_file2(Epp, S2, [FileForm], OptModRes); - {eof,LastLine} -> - S#state{forms_or_bin = [FileForm, {eof,LastLine}]} + {eof, _LastLine} = Eof -> + S#state{forms_or_bin = [FileForm, Eof]} end, ok = epp:close(Epp), ok = file:close(Fd), @@ -683,8 +689,8 @@ epp_parse_file2(Epp, S, Forms, Parsed) -> io:format("~s:~w: ~s\n", [S#state.file,Ln,Mod:format_error(Args)]), epp_parse_file(Epp, S#state{n_errors = S#state.n_errors + 1}, [Form | Forms]); - {eof,LastLine} -> - S#state{forms_or_bin = lists:reverse([{eof, LastLine} | Forms])} + {eof, _LastLine} = Eof -> + S#state{forms_or_bin = lists:reverse([Eof | Forms])} end. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |