Fix bug when running mix on directories containig space, closes #840

Author: José Valim

bin/elixir.bat

@@ -1,9 +1,11 @@
 @echo off
-if "%*" == "" (
-	goto documentation
+set argc=0
+for %%x in (%*) do set /A argc+=1
+if %argc% == 0 (
+  goto documentation
 ) else (
-	goto run 
-) 
+  goto run
+)
 :documentation
 echo Usage: %~nx0 [options] [.exs file] [data]
 echo.
@@ -20,4 +22,4 @@ echo ** Options marked with (*) can be given more than once
 echo ** Options given after the .exs file or -- are passed down to the executed code
 echo ** Options can be passed to the erlang runtime using ELIXIR_ERL_OPTS
 :run
-erl -env ERL_LIBS %ERL_LIBS%;"%~dp0\..\lib" -noshell %ELIXIR_ERL_OPTS% -s elixir start_cli -extra %*
+erl -env ERL_LIBS %ERL_LIBS%;"%~dp0\..\lib" -noshell %ELIXIR_ERL_OPTS% -s elixir start_cli -extra %*

bin/elixirc.bat

@@ -1,9 +1,11 @@
 @echo off
-if "%*" == "" (
-	goto documentation
+set argc=0
+for %%x in (%*) do set /A argc+=1
+if %argc% == 0 (
+  goto documentation
 ) else (
-	goto run 
-) 
+  goto run
+)
 :documentation
 echo Usage: %~nx0 [elixir switches] [compiler switches] [.ex files]
 echo.
@@ -16,4 +18,4 @@ echo ** Options marked with (*) can be given more than once
 echo ** Options given after -- are passed down to the executed code
 echo ** Options can be passed to the erlang runtime using ELIXIR_ERL_OPTS" >&2
 :run
-call "%~dp0\elixir.bat" --compile %*
+call "%~dp0\elixir.bat" --compile %*

bin/mix.bat

@@ -1 +1,2 @@
-call "%~dp0\elixir.bat" "%~dp0\mix" %*
+@echo off
+call "%~dp0\elixir.bat" "%~dp0\mix" %*