The R13B03 release.OTP_R13B03

1 files changed, 324 insertions, 0 deletions

diff --git a/lib/tools/src/make.erl b/lib/tools/src/make.erl
new file mode 100644
index 0000000000..77c354651b
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+++ b/lib/tools/src/make.erl
@@ -0,0 +1,324 @@
+%%
+%% %CopyrightBegin%
+%% 
+%% Copyright Ericsson AB 1996-2009. 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%
+%%
+%% Purpose : Basic make facility
+
+%% Compares date stamps of .erl and Object files - recompiles when
+%% necessary.
+%% Files to be checked are contained in a file 'Emakefile' 
+%% If Emakefile is missing the current directory is used.
+-module(make).
+
+-export([all/0,all/1,files/1,files/2]).
+
+-include_lib("kernel/include/file.hrl").
+
+-define(MakeOpts,[noexec,load,netload,noload]).
+
+all() ->
+    all([]).
+
+all(Options) ->
+    {MakeOpts,CompileOpts} = sort_options(Options,[],[]),
+    case read_emakefile('Emakefile',CompileOpts) of
+	Files when is_list(Files) ->
+	    do_make_files(Files,MakeOpts);
+	error ->
+	    error
+    end.
+
+files(Fs) ->
+    files(Fs, []).
+
+files(Fs0, Options) ->
+    Fs = [filename:rootname(F,".erl") || F <- Fs0],
+    {MakeOpts,CompileOpts} = sort_options(Options,[],[]),
+    case get_opts_from_emakefile(Fs,'Emakefile',CompileOpts) of
+	Files when is_list(Files) ->
+	    do_make_files(Files,MakeOpts);	    
+	error -> error
+    end.
+
+do_make_files(Fs, Opts) ->
+    process(Fs, lists:member(noexec, Opts), load_opt(Opts)).
+
+
+sort_options([H|T],Make,Comp) ->
+    case lists:member(H,?MakeOpts) of
+	true ->
+	    sort_options(T,[H|Make],Comp);
+	false ->
+	    sort_options(T,Make,[H|Comp])
+    end;
+sort_options([],Make,Comp) ->
+    {Make,lists:reverse(Comp)}.
+
+%%% Reads the given Emakefile and returns a list of tuples: {Mods,Opts}
+%%% Mods is a list of module names (strings)
+%%% Opts is a list of options to be used when compiling Mods
+%%%
+%%% Emakefile can contain elements like this:
+%%% Mod.
+%%% {Mod,Opts}.
+%%% Mod is a module name which might include '*' as wildcard
+%%% or a list of such module names
+%%%
+%%% These elements are converted to [{ModList,OptList},...]
+%%% ModList is a list of modulenames (strings)
+read_emakefile(Emakefile,Opts) ->
+    case file:consult(Emakefile) of
+	{ok,Emake} ->
+	    transform(Emake,Opts,[],[]);
+	{error,enoent} ->
+	    %% No Emakefile found - return all modules in current 
+	    %% directory and the options given at command line
+	    Mods = [filename:rootname(F) ||  F <- filelib:wildcard("*.erl")],
+	    [{Mods, Opts}];
+	{error,Other} ->
+	    io:format("make: Trouble reading 'Emakefile':~n~p~n",[Other]),
+	    error
+    end.
+
+transform([{Mod,ModOpts}|Emake],Opts,Files,Already) ->
+    case expand(Mod,Already) of
+	[] -> 
+	    transform(Emake,Opts,Files,Already);
+	Mods -> 
+	    transform(Emake,Opts,[{Mods,ModOpts++Opts}|Files],Mods++Already)
+    end;
+transform([Mod|Emake],Opts,Files,Already) ->
+    case expand(Mod,Already) of
+	[] -> 
+	    transform(Emake,Opts,Files,Already);
+	Mods ->
+	    transform(Emake,Opts,[{Mods,Opts}|Files],Mods++Already)
+    end;
+transform([],_Opts,Files,_Already) ->
+    lists:reverse(Files).
+
+expand(Mod,Already) when is_atom(Mod) ->
+    expand(atom_to_list(Mod),Already);
+expand(Mods,Already) when is_list(Mods), not is_integer(hd(Mods)) ->
+    lists:concat([expand(Mod,Already) || Mod <- Mods]);
+expand(Mod,Already) ->
+    case lists:member($*,Mod) of
+	true -> 
+	    Fun = fun(F,Acc) -> 
+			  M = filename:rootname(F),
+			  case lists:member(M,Already) of
+			      true -> Acc;
+			      false -> [M|Acc]
+			  end
+		  end,
+	    lists:foldl(Fun, [], filelib:wildcard(Mod++".erl"));
+	false ->
+	    Mod2 = filename:rootname(Mod, ".erl"),
+	    case lists:member(Mod2,Already) of
+		true -> [];
+		false -> [Mod2]
+	    end
+    end.
+
+%%% Reads the given Emakefile to see if there are any specific compile 
+%%% options given for the modules.
+get_opts_from_emakefile(Mods,Emakefile,Opts) ->
+    case file:consult(Emakefile) of
+	{ok,Emake} ->
+	    Modsandopts = transform(Emake,Opts,[],[]),
+	    ModStrings = [coerce_2_list(M) || M <- Mods],
+	    get_opts_from_emakefile2(Modsandopts,ModStrings,Opts,[]); 
+	{error,enoent} ->
+	    [{Mods, Opts}];
+	{error,Other} ->
+	    io:format("make: Trouble reading 'Emakefile':~n~p~n",[Other]),
+	    error
+    end.
+
+get_opts_from_emakefile2([{MakefileMods,O}|Rest],Mods,Opts,Result) ->
+    case members(Mods,MakefileMods,[],Mods) of
+	{[],_} -> 
+	    get_opts_from_emakefile2(Rest,Mods,Opts,Result);
+	{I,RestOfMods} ->
+	    get_opts_from_emakefile2(Rest,RestOfMods,Opts,[{I,O}|Result])
+    end;
+get_opts_from_emakefile2([],[],_Opts,Result) ->
+    Result;
+get_opts_from_emakefile2([],RestOfMods,Opts,Result) ->
+    [{RestOfMods,Opts}|Result].
+    
+members([H|T],MakefileMods,I,Rest) ->
+    case lists:member(H,MakefileMods) of
+	true ->
+	    members(T,MakefileMods,[H|I],lists:delete(H,Rest));
+	false ->
+	    members(T,MakefileMods,I,Rest)
+    end;
+members([],_MakefileMods,I,Rest) ->
+    {I,Rest}.
+
+
+%% Any flags that are not recognixed as make flags are passed directly
+%% to the compiler.
+%% So for example make:all([load,debug_info]) will make everything
+%% with the debug_info flag and load it.
+	
+load_opt(Opts) ->
+    case lists:member(netload,Opts) of
+	true -> 
+	    netload;
+	false ->
+	    case lists:member(load,Opts) of
+		true ->
+		    load;
+		_ ->
+		    noload
+	    end
+    end.
+
+
+process([{[],_Opts}|Rest], NoExec, Load) ->
+    process(Rest, NoExec, Load);
+process([{[H|T],Opts}|Rest], NoExec, Load) ->
+    case recompilep(coerce_2_list(H), NoExec, Load, Opts) of
+	error ->
+	    error;
+	_ ->
+	    process([{T,Opts}|Rest], NoExec, Load)
+    end;
+process([], _NoExec, _Load) ->
+    up_to_date.
+
+recompilep(File, NoExec, Load, Opts) ->
+    ObjName = lists:append(filename:basename(File),
+			   code:objfile_extension()),
+    ObjFile = case lists:keysearch(outdir,1,Opts) of
+		  {value,{outdir,OutDir}} ->
+		      filename:join(coerce_2_list(OutDir),ObjName);
+		  false ->
+		      ObjName
+	      end,
+    case exists(ObjFile) of
+	true ->
+	    recompilep1(File, NoExec, Load, Opts, ObjFile);
+	false ->
+	    recompile(File, NoExec, Load, Opts)
+    end.
+ 
+recompilep1(File, NoExec, Load, Opts, ObjFile) ->
+    {ok, Erl} = file:read_file_info(lists:append(File, ".erl")),
+    {ok, Obj} = file:read_file_info(ObjFile),
+    case {readable(Erl), writable(Obj)} of
+	{true, true} ->
+	    recompilep1(Erl, Obj, File, NoExec, Load, Opts);
+	_ ->
+	    error
+    end.
+
+recompilep1(#file_info{mtime=Te},
+	    #file_info{mtime=To}, File, NoExec, Load, Opts) when Te>To ->
+    recompile(File, NoExec, Load, Opts);
+recompilep1(_Erl, #file_info{mtime=To}, File, NoExec, Load, Opts) ->
+    recompile2(To, File, NoExec, Load, Opts).
+
+%% recompile2(ObjMTime, File, NoExec, Load, Opts)
+%% Check if file is of a later date than include files.
+recompile2(ObjMTime, File, NoExec, Load, Opts) ->
+    IncludePath = include_opt(Opts),
+    case check_includes(lists:append(File, ".erl"), IncludePath, ObjMTime) of
+	true ->
+	    recompile(File, NoExec, Load, Opts);
+	false ->
+	    false
+    end.
+
+include_opt([{i,Path}|Rest]) ->
+    [Path|include_opt(Rest)];
+include_opt([_First|Rest]) ->
+    include_opt(Rest);
+include_opt([]) ->
+    [].
+
+%% recompile(File, NoExec, Load, Opts)
+%% Actually recompile and load the file, depending on the flags.
+%% Where load can be netload | load | noload
+
+recompile(File, true, _Load, _Opts) ->
+    io:format("Out of date: ~s\n",[File]);
+recompile(File, false, noload, Opts) ->
+    io:format("Recompile: ~s\n",[File]),
+    compile:file(File, [report_errors, report_warnings, error_summary |Opts]);
+recompile(File, false, load, Opts) ->
+    io:format("Recompile: ~s\n",[File]),
+    c:c(File, Opts);
+recompile(File, false, netload, Opts) ->
+    io:format("Recompile: ~s\n",[File]),
+    c:nc(File, Opts).
+
+exists(File) ->
+    case file:read_file_info(File) of
+	{ok, _} ->
+	    true;
+	_ ->
+	    false
+    end.
+
+readable(#file_info{access=read_write}) -> true;
+readable(#file_info{access=read})       -> true;
+readable(_) -> false.
+
+writable(#file_info{access=read_write}) -> true;
+writable(#file_info{access=write})      -> true;
+writable(_) -> false.
+
+coerce_2_list(X) when is_atom(X) ->
+    atom_to_list(X);
+coerce_2_list(X) ->
+    X.
+
+%%% If you an include file is found with a modification
+%%% time larger than the modification time of the object
+%%% file, return true. Otherwise return false.
+check_includes(File, IncludePath, ObjMTime) ->
+    Path = [filename:dirname(File)|IncludePath], 
+    case epp:open(File, Path, []) of
+	{ok, Epp} ->
+	    check_includes2(Epp, File, ObjMTime);
+	_Error ->
+	    false
+    end.
+    
+check_includes2(Epp, File, ObjMTime) ->
+    case epp:parse_erl_form(Epp) of
+	{ok, {attribute, 1, file, {File, 1}}} ->
+	    check_includes2(Epp, File, ObjMTime);
+	{ok, {attribute, 1, file, {IncFile, 1}}} ->
+	    case file:read_file_info(IncFile) of
+		{ok, #file_info{mtime=MTime}} when MTime>ObjMTime ->
+		    epp:close(Epp),
+		    true;
+		_ ->
+		    check_includes2(Epp, File, ObjMTime)
+	    end;
+	{ok, _} ->
+	    check_includes2(Epp, File, ObjMTime);
+	{eof, _} ->
+	    epp:close(Epp),
+	    false;
+	{error, _Error} ->
+	    check_includes2(Epp, File, ObjMTime)
+    end.