%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 1997-2009. 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 : Supervises running of test cases.
-module(ts_run).
-export([run/4]).
-define(DEFAULT_MAKE_TIMETRAP_MINUTES, 60).
-define(DEFAULT_UNMAKE_TIMETRAP_MINUTES, 15).
-include("ts.hrl").
-import(lists, [map/2,member/2,filter/2,reverse/1]).
-record(state,
{file, % File given.
mod, % Module to run.
test_server_args, % Arguments to test server.
command, % Command to run.
test_dir, % Directory for test suite.
makefiles, % List of all makefiles.
makefile, % Current makefile.
batch, % Are we running in batch mode?
data_wc, % Wildcard for data dirs.
topcase, % Top case specification.
all % Set if we have all_SUITE_data
}).
-define(tracefile,"traceinfo").
%% Options is a slightly modified version of the options given to
%% ts:run. Vars0 are from the variables file.
run(File, Args0, Options, Vars0) ->
Vars=
case lists:keysearch(vars, 1, Options) of
{value, {vars, Vars1}} ->
Vars1++Vars0;
_ ->
Vars0
end,
{Batch,Runner} =
case {member(interactive, Options), member(batch, Options)} of
{false, true} ->
{true, fun run_batch/3};
_ ->
{false, fun run_interactive/3}
end,
HandleTopcase = case member(keep_topcase, Options) of
true -> [fun copy_topcase/3];
false -> [fun remove_original_topcase/3,
fun init_topcase/3]
end,
MakefileHooks = [fun make_make/3,
fun add_make_testcase/3],
MakeLoop = fun(V, Sp, St) -> make_loop(MakefileHooks, V, Sp, St) end,
Hooks = [fun init_state/3,
fun read_spec_file/3] ++
HandleTopcase ++
[fun run_preinits/3,
fun find_makefiles/3,
MakeLoop,
fun make_test_suite/3,
fun add_topcase_to_spec/3,
fun write_spec_file/3,
fun make_command/3,
Runner],
Args = make_test_server_args(Args0,Options,Vars),
St = #state{file=File,test_server_args=Args,batch=Batch},
R = execute(Hooks, Vars, [], St),
case Batch of
true -> ts_reports:make_index();
false -> ok % ts_reports:make_index() is run on the test_server node
end,
case R of
{ok,_,_,_} -> ok;
Error -> Error
end.
make_loop(Hooks, Vars0, Spec0, St0) ->
case St0#state.makefiles of
[Makefile|Rest] ->
case execute(Hooks, Vars0, Spec0, St0#state{makefile=Makefile}) of
{error, Reason} ->
{error, Reason};
{ok, Vars, Spec, St} ->
make_loop(Hooks, Vars, Spec, St#state{makefiles=Rest})
end;
[] ->
{ok, Vars0, Spec0, St0}
end.
execute([Hook|Rest], Vars0, Spec0, St0) ->
case Hook(Vars0, Spec0, St0) of
ok ->
execute(Rest, Vars0, Spec0, St0);
{ok, Vars, Spec, St} ->
execute(Rest, Vars, Spec, St);
Error ->
Error
end;
execute([], Vars, Spec, St) ->
{ok, Vars, Spec, St}.
%%
%% Deletes File from Files when File is on the form .../<SUITE>_data/<file>
%% when all of <SUITE> has been skipped in Spec, i.e. there
%% exists a {skip, {<SUITE>, _}} tuple in Spec.
%%
del_skipped_suite_data_dir(Files, Spec) ->
SkipDirNames = lists:foldl(fun ({skip, {SS, _C}}, SSs) ->
[atom_to_list(SS) ++ "_data" | SSs];
(_, SSs) ->
SSs
end,
[],
Spec),
filter(fun (File) ->
not member(filename:basename(filename:dirname(File)),
SkipDirNames)
end,
Files).
%% Initialize our internal state.
init_state(Vars, [], St0) ->
{FileBase,Wc0,Mod} =
case St0#state.file of
{Fil,Mod0} -> {Fil, atom_to_list(Mod0) ++ "*_data",Mod0};
Fil -> {Fil,"*_SUITE_data",[]}
end,
{ok,Cwd} = file:get_cwd(),
TestDir = filename:join(filename:dirname(Cwd), FileBase++"_test"),
case filelib:is_dir(TestDir) of
true ->
Wc = filename:join(TestDir, Wc0),
{ok,Vars,[],St0#state{file=FileBase,mod=Mod,
test_dir=TestDir,data_wc=Wc}};
false ->
{error,{no_test_directory,TestDir}}
end.
%% Read the spec file for the test suite.
read_spec_file(Vars, _, St) ->
TestDir = St#state.test_dir,
File = St#state.file,
{SpecFile,Res} = get_spec_filename(Vars, TestDir, File),
case Res of
{ok,Spec} ->
{ok,Vars,Spec,St};
{error,Atom} when is_atom(Atom) ->
{error,{no_spec,SpecFile}};
{error,Reason} ->
{error,{bad_spec,lists:flatten(file:format_error(Reason))}}
end.
get_spec_filename(Vars, TestDir, File) ->
DynSpec = filename:join(TestDir, File ++ ".dynspec"),
case filelib:is_file(DynSpec) of
true ->
Bs0 = erl_eval:new_bindings(),
Bs1 = erl_eval:add_binding('Target', ts_lib:var(target, Vars), Bs0),
Bs2 = erl_eval:add_binding('Os', ts_lib:var(os, Vars), Bs1),
TCCStr = ts_lib:var(test_c_compiler, Vars),
TCC = try
{ok, Toks, _} = erl_scan:string(TCCStr ++ "."),
{ok, Tcc} = erl_parse:parse_term(Toks),
Tcc
catch
_:_ -> undefined
end,
Bs = erl_eval:add_binding('TestCCompiler', TCC, Bs2),
{DynSpec,file:script(DynSpec, Bs)};
false ->
SpecFile = get_spec_filename_1(Vars, TestDir, File),
{SpecFile,file:consult(SpecFile)}
end.
get_spec_filename_1(Vars, TestDir, File) ->
case ts_lib:var(os, Vars) of
"VxWorks" ->
check_spec_filename(TestDir, File, ".spec.vxworks");
"OSE" ->
check_spec_filename(TestDir, File, ".spec.ose");
"Windows"++_ ->
check_spec_filename(TestDir, File, ".spec.win");
_Other ->
filename:join(TestDir, File ++ ".spec")
end.
check_spec_filename(TestDir, File, Ext) ->
Spec = filename:join(TestDir, File ++ Ext),
case filelib:is_file(Spec) of
true -> Spec;
false -> filename:join(TestDir, File ++ ".spec")
end.
%% Remove the top case from the spec file. We will add our own
%% top case later.
remove_original_topcase(Vars, Spec, St) ->
{ok,Vars,filter(fun ({topcase,_}) -> false;
(_Other) -> true end, Spec),St}.
%% Initialize our new top case. We'll keep in it the state to be
%% able to add more to it.
init_topcase(Vars, Spec, St) ->
TestDir = St#state.test_dir,
TopCase =
case St#state.mod of
Mod when is_atom(Mod) ->
ModStr = atom_to_list(Mod),
case filelib:is_file(filename:join(TestDir,ModStr++".erl")) of
true -> [{Mod,all}];
false ->
Wc = filename:join(TestDir, ModStr ++ "*_SUITE.erl"),
[{list_to_atom(filename:basename(M, ".erl")),all} ||
M <- filelib:wildcard(Wc)]
end;
_Other ->
%% Here we used to return {dir,TestDir}. Now we instead
%% list all suites in TestDir, so we can add make testcases
%% around it later (see add_make_testcase) without getting
%% duplicates of the suite. (test_server_ctrl does no longer
%% check for duplicates of testcases)
Wc = filename:join(TestDir, "*_SUITE.erl"),
[{list_to_atom(filename:basename(M, ".erl")),all} ||
M <- filelib:wildcard(Wc)]
end,
{ok,Vars,Spec,St#state{topcase=TopCase}}.
%% Or if option keep_topcase was given, eh... keep the topcase
copy_topcase(Vars, Spec, St) ->
{value,{topcase,Tc}} = lists:keysearch(topcase,1,Spec),
{ok, Vars, lists:keydelete(topcase,1,Spec),St#state{topcase=Tc}}.
%% Run any "Makefile.first" files first.
%% XXX We should fake a failing test case if the make fails.
run_preinits(Vars, Spec, St) ->
Wc = filename:join(St#state.data_wc, "Makefile.first"),
run_pre_makefiles(del_skipped_suite_data_dir(filelib:wildcard(Wc), Spec),
Vars, Spec, St),
{ok,Vars,Spec,St}.
run_pre_makefiles([Makefile|Ms], Vars0, Spec0, St0) ->
Hooks = [fun run_pre_makefile/3],
case execute(Hooks, Vars0, Spec0, St0#state{makefile=Makefile}) of
{error,_Reason}=Error -> Error;
{ok,Vars,Spec,St} -> run_pre_makefiles(Ms, Vars, Spec, St)
end;
run_pre_makefiles([], Vars, Spec, St) -> {ok,Vars,Spec,St}.
run_pre_makefile(Vars, Spec, St) ->
Makefile = St#state.makefile,
Shortname = filename:basename(Makefile),
DataDir = filename:dirname(Makefile),
Make = ts_lib:var(make_command, Vars),
case ts_make:make(Make,DataDir, Shortname) of
ok -> {ok,Vars,Spec,St};
{error,_Reason}=Error -> Error
end.
%% Search for `Makefile.src' in each *_SUITE_data directory.
find_makefiles(Vars, Spec, St) ->
Wc = filename:join(St#state.data_wc, "Makefile.src"),
Makefiles = reverse(del_skipped_suite_data_dir(filelib:wildcard(Wc), Spec)),
{ok,Vars,Spec,St#state{makefiles=Makefiles}}.
%% Create "Makefile" from "Makefile.src".
make_make(Vars, Spec, State) ->
Src = State#state.makefile,
Dest = filename:rootname(Src),
ts_lib:progress(Vars, 1, "Making ~s...\n", [Dest]),
case ts_lib:subst_file(Src, Dest, Vars) of
ok ->
{ok, Vars, Spec, State#state{makefile=Dest}};
{error, Reason} ->
{error, {Src, Reason}}
end.
%% Add a testcase which will do the making of the stuff in the data directory.
add_make_testcase(Vars, Spec, St) ->
Makefile = St#state.makefile,
Dir = filename:dirname(Makefile),
case ts_lib:var(os, Vars) of
"OSE" ->
%% For OSE, C code in datadir must be linked in the image file,
%% and erlang code is sent as binaries from test_server_ctrl
%% Making erlang code here because the Makefile.src probably won't
%% work.
Erl_flags=[{i, "../../test_server"}|ts_lib:var(erl_flags,Vars)],
{ok, Cwd} = file:get_cwd(),
ok = file:set_cwd(Dir),
Result = (catch make:all(Erl_flags)),
ok = file:set_cwd(Cwd),
case Result of
up_to_date -> {ok, Vars, Spec, St};
_error -> {error, {erlang_make_failed,Dir}}
end;
_ ->
Shortname = filename:basename(Makefile),
Suite = filename:basename(Dir, "_data"),
Config = [{data_dir,Dir},{makefile,Shortname}],
MakeModule = Suite ++ "_make",
MakeModuleSrc = filename:join(filename:dirname(Dir),
MakeModule ++ ".erl"),
MakeMod = list_to_atom(MakeModule),
case filelib:is_file(MakeModuleSrc) of
true -> ok;
false -> generate_make_module(ts_lib:var(make_command, Vars),
MakeModuleSrc,
MakeModule)
end,
case Suite of
"all_SUITE" ->
{ok,Vars,Spec,St#state{all={MakeMod,Config}}};
_ ->
%% Avoid duplicates of testcases. There is no longer
%% a check for this in test_server_ctrl.
TestCase = {list_to_atom(Suite),all},
TopCase0 = case St#state.topcase of
List when is_list(List) ->
List -- [TestCase];
Top ->
[Top] -- [TestCase]
end,
TopCase = [{make,{MakeMod,make,[Config]},
TestCase,
{MakeMod,unmake,[Config]}}|TopCase0],
{ok,Vars,Spec,St#state{topcase=TopCase}}
end
end.
generate_make_module(MakeCmd, Name, ModuleString) ->
{ok,Host} = inet:gethostname(),
file:write_file(Name,
["-module(",ModuleString,").\n",
"\n",
"-export([make/1,unmake/1]).\n",
"\n",
"make(Config) when is_list(Config) ->\n",
" Mins = " ++ integer_to_list(?DEFAULT_MAKE_TIMETRAP_MINUTES) ++ ",\n"
" test_server:format(\"=== Setting timetrap to ~p minutes ===~n\", [Mins]),\n"
" TimeTrap = test_server:timetrap(test_server:minutes(Mins)),\n"
" Res = ts_make:make([{make_command, \""++MakeCmd++"\"},{cross_node,\'ts@" ++ Host ++ "\'}|Config]),\n",
" test_server:timetrap_cancel(TimeTrap),\n"
" Res.\n"
"\n",
"unmake(Config) when is_list(Config) ->\n",
" Mins = " ++ integer_to_list(?DEFAULT_UNMAKE_TIMETRAP_MINUTES) ++ ",\n"
" test_server:format(\"=== Setting timetrap to ~p minutes ===~n\", [Mins]),\n"
" TimeTrap = test_server:timetrap(test_server:minutes(Mins)),\n"
" Res = ts_make:unmake([{make_command, \""++MakeCmd++"\"}|Config]),\n"
" test_server:timetrap_cancel(TimeTrap),\n"
" Res.\n"
"\n"]).
make_test_suite(Vars, _Spec, State) ->
TestDir = State#state.test_dir,
Erl_flags=[{i, "../test_server"}|ts_lib:var(erl_flags,Vars)],
case code:is_loaded(test_server_line) of
false -> code:load_file(test_server_line);
_ -> ok
end,
{ok, Cwd} = file:get_cwd(),
ok = file:set_cwd(TestDir),
Result = (catch make:all(Erl_flags)),
ok = file:set_cwd(Cwd),
case Result of
up_to_date ->
ok;
{'EXIT', Reason} ->
%% If I return an error here, the test will be stopped
%% and it will not show up in the top index page. Instead
%% I return ok - the test will run for all existing suites.
%% It might be that there are old suites that are run, but
%% at least one suite is missing, and that is reported on the
%% top index page.
io:format("~s: {error,{make_crashed,~p}\n",
[State#state.file,Reason]),
ok;
error ->
%% See comment above
io:format("~s: {error,make_of_test_suite_failed}\n",
[State#state.file]),
ok
end.
%% Add topcase to spec.
add_topcase_to_spec(Vars, Spec, St) ->
Tc = case St#state.all of
{MakeMod,Config} ->
[{make,{MakeMod,make,[Config]},
St#state.topcase,
{MakeMod,unmake,[Config]}}];
undefined -> St#state.topcase
end,
{ok,Vars,Spec++[{topcase,Tc}],St}.
%% Writes the (possibly transformed) spec file.
write_spec_file(Vars, Spec, _State) ->
F = fun(Term) -> io_lib:format("~p.~n", [Term]) end,
SpecFile = map(F, Spec),
Hosts =
case lists:keysearch(hosts, 1, Vars) of
false ->
[];
{value, {hosts, HostList}} ->
io_lib:format("{hosts,~p}.~n",[HostList])
end,
DiskLess =
case lists:keysearch(diskless, 1, Vars) of
false ->
[];
{value, {diskless, How}} ->
io_lib:format("{diskless, ~p}.~n",[How])
end,
Conf = consult_config(),
MoreConfig = io_lib:format("~p.\n", [{config,Conf}]),
file:write_file("current.spec", [DiskLess,Hosts,MoreConfig,SpecFile]).
consult_config() ->
{ok,Conf} = file:consult("ts.config"),
case os:type() of
{unix,_} -> consult_config("ts.unix.config", Conf);
{win32,_} -> consult_config("ts.win32.config", Conf);
vxworks -> consult_config("ts.vxworks.config", Conf);
_ -> Conf
end.
consult_config(File, Conf0) ->
case file:consult(File) of
{ok,Conf} -> Conf++Conf0;
{error,enoent} -> Conf0
end.
%% Makes the command to start up the Erlang node to run the tests.
backslashify([$\\, $" | T]) ->
[$\\, $" | backslashify(T)];
backslashify([$" | T]) ->
[$\\, $" | backslashify(T)];
backslashify([H | T]) ->
[H | backslashify(T)];
backslashify([]) ->
[].
make_command(Vars, Spec, State) ->
TestDir = State#state.test_dir,
TestPath = filename:nativename(TestDir),
Erl = case os:getenv("TS_RUN_VALGRIND") of
false ->
atom_to_list(lib:progname());
_ ->
case State#state.file of
Dir when is_list(Dir) ->
os:putenv("VALGRIND_LOGFILE_PREFIX", Dir++"-");
_ ->
ok
end,
"cerl -valgrind" ++
case erlang:system_info(smp_support) of
true -> " -smp";
false -> ""
end
end,
Naming =
case ts_lib:var(longnames, Vars) of
true ->
" -name ";
false ->
" -sname "
end,
ExtraArgs =
case lists:keysearch(erl_start_args,1,Vars) of
{value,{erl_start_args,Args}} -> Args;
false -> ""
end,
CrashFile = State#state.file ++ "_erl_crash.dump",
case filelib:is_file(CrashFile) of
true ->
io:format("ts_run: Deleting dump: ~s\n",[CrashFile]),
file:delete(CrashFile);
false ->
ok
end,
Cmd = [Erl, Naming, "test_server -pa ", $", TestPath, $",
" -rsh ", ts_lib:var(rsh_name, Vars),
" -env PATH \"",
backslashify(lists:flatten([TestPath, path_separator(),
remove_path_spaces()])),
"\"",
" -env ERL_CRASH_DUMP ", CrashFile,
%% uncomment the line below to disable exception formatting
%% " -test_server_format_exception false",
" -boot start_sasl -sasl errlog_type error",
" -s test_server_ctrl run_test ", State#state.test_server_args,
" ",
ExtraArgs],
{ok, Vars, Spec, State#state{command=lists:flatten(Cmd)}}.
run_batch(Vars, _Spec, State) ->
process_flag(trap_exit, true),
Command = State#state.command ++ " -noinput -s erlang halt",
ts_lib:progress(Vars, 1, "Command: ~s~n", [Command]),
Port = open_port({spawn, Command}, [stream, in, eof]),
tricky_print_data(Port).
tricky_print_data(Port) ->
receive
{Port, {data, Bytes}} ->
io:put_chars(Bytes),
tricky_print_data(Port);
{Port, eof} ->
Port ! {self(), close},
receive
{Port, closed} ->
true
end,
receive
{'EXIT', Port, _} ->
ok
after 1 -> % force context switch
ok
end
after 30000 ->
case erl_epmd:names() of
{ok,Names} ->
case is_testnode_dead(Names) of
true ->
io:put_chars("WARNING: No EOF, but "
"test_server node is down!\n");
false ->
tricky_print_data(Port)
end;
_ ->
tricky_print_data(Port)
end
end.
is_testnode_dead([]) -> true;
is_testnode_dead([{"test_server",_}|_]) -> false;
is_testnode_dead([_|T]) -> is_testnode_dead(T).
run_interactive(Vars, _Spec, State) ->
Command = State#state.command ++ " -s ts_reports make_index",
ts_lib:progress(Vars, 1, "Command: ~s~n", [Command]),
case ts_lib:var(os, Vars) of
"Windows 95" ->
%% Windows 95 strikes again! We must redirect standard
%% input and output for the `start' command, to force
%% standard input and output to the Erlang shell to be
%% connected to the newly started console.
%% Without these redirections, the Erlang shell would be
%% connected to the pipes provided by the port program
%% and there would be an inactive console window.
os:cmd("start < nul > nul w" ++ Command),
ok;
"Windows 98" ->
os:cmd("start < nul > nul w" ++ Command),
ok;
"Windows"++_ ->
os:cmd("start w" ++ Command),
ok;
_Other ->
%% Assuming ts and controller always run on solaris
start_xterm(Command)
end.
start_xterm(Command) ->
case os:find_executable("xterm") of
false ->
io:format("The `xterm' program was not found.\n"),
{error, no_xterm};
_Xterm ->
case os:getenv("DISPLAY") of
false ->
io:format("DISPLAY is not set.\n"),
{error, display_not_set};
Display ->
io:format("Starting xterm (DISPLAY=~s)...\n",
[Display]),
os:cmd("xterm -sl 10000 -e " ++ Command ++ "&"),
ok
end
end.
path_separator() ->
case os:type() of
{win32, _} -> ";";
{unix, _} -> ":";
vxworks -> ":"
end.
make_test_server_args(Args0,Options,Vars) ->
Parameters =
case ts_lib:var(os, Vars) of
"VxWorks" ->
F = write_parameterfile(vxworks,Vars),
" PARAMETERS " ++ F;
"OSE" ->
F = write_parameterfile(ose,Vars),
" PARAMETERS " ++ F;
_ ->
""
end,
Trace =
case lists:keysearch(trace,1,Options) of
{value,{trace,TI}} when is_tuple(TI); is_tuple(hd(TI)) ->
ok = file:write_file(?tracefile,io_lib:format("~p.~n",[TI])),
" TRACE " ++ ?tracefile;
{value,{trace,TIFile}} when is_atom(TIFile) ->
" TRACE " ++ atom_to_list(TIFile);
{value,{trace,TIFile}} ->
" TRACE " ++ TIFile;
false ->
""
end,
Cover =
case lists:keysearch(cover,1,Options) of
{value,{cover,App,File,Analyse}} ->
" COVER " ++ to_list(App) ++ " " ++ to_list(File) ++ " " ++
to_list(Analyse);
false ->
""
end,
TCCallback =
case ts_lib:var(ts_testcase_callback, Vars) of
"" ->
"";
{Mod,Func} ->
io:format("Function ~w:~w/4 will be called before and "
"after each test case.\n", [Mod,Func]),
" TESTCASE_CALLBACK " ++ to_list(Mod) ++ " " ++ to_list(Func);
ModFunc when is_list(ModFunc) ->
[Mod,Func]=string:tokens(ModFunc," "),
io:format("Function ~s:~s/4 will be called before and "
"after each test case.\n", [Mod,Func]),
" TESTCASE_CALLBACK " ++ ModFunc;
_ ->
""
end,
Args0 ++ Parameters ++ Trace ++ Cover ++ TCCallback.
to_list(X) when is_atom(X) ->
atom_to_list(X);
to_list(X) when is_list(X) ->
X.
write_parameterfile(Type,Vars) ->
Cross_host = ts_lib:var(target_host, Vars),
SlaveTargets = case lists:keysearch(slavetargets,1,Vars) of
{value, ST} ->
[ST];
_ ->
[]
end,
Master = case lists:keysearch(master,1,Vars) of
{value,M} -> [M];
false -> []
end,
ToWrite = [{type,Type},
{target, list_to_atom(Cross_host)}] ++ SlaveTargets ++ Master,
Crossfile = atom_to_list(Type) ++ "parameters" ++ os:getpid(),
ok = file:write_file(Crossfile,io_lib:format("~p.~n", [ToWrite])),
Crossfile.
%%
%% Paths and spaces handling for w2k and XP
%%
remove_path_spaces() ->
Path = os:getenv("PATH"),
case os:type() of
{win32,nt} ->
remove_path_spaces(Path);
_ ->
Path
end.
remove_path_spaces(Path) ->
SPath = split_path(Path),
[NSHead|NSTail] = lists:map(fun(X) -> filename:nativename(
filename:join(
translate_path(split_one(X))))
end,
SPath),
NSHead ++ lists:flatten([[$;|X] || X <- NSTail]).
translate_path(PList) ->
%io:format("translate_path([~p|~p]~n",[Base,PList]),
translate_path(PList,[]).
translate_path([],_) ->
[];
translate_path([PC | T],BaseList) ->
FullPath = filename:nativename(filename:join(BaseList ++ [PC])),
NewPC = case catch file:altname(FullPath) of
{ok,X} ->
X;
_ ->
PC
end,
%io:format("NewPC:~s, DirList:~p~n",[NewPC,DirList]),
NewBase = BaseList ++ [NewPC],
[NewPC | translate_path(T,NewBase)].
split_one(Path) ->
filename:split(Path).
split_path(Path) ->
string:tokens(Path,";").
