# HG changeset patch
# User osimons
# Date 1252313792 0
# Node ID 80d4c32c810344037600d96384fda228d44729c7
# Parent  22bbda64c9f555a4ad7994286e8e23f7f61aba3c
0.6dev: Follow-up to #441 / [745]. Of course, cmd.exe built-ins was the reason for executing through shell on Windows... This fix adds back support for important built-ins by essentially calling `cmd.exe /C command + args`.

diff --git a/bitten/build/shtools.py b/bitten/build/shtools.py
--- a/bitten/build/shtools.py
+++ b/bitten/build/shtools.py
@@ -107,6 +107,12 @@
     elif file_:
         args[:0] = [file_]
 
+    # Support important Windows CMD.EXE built-ins (and it does its own quoting)
+    if os.name == 'nt' and executable.upper() in ['COPY', 'DIR', 'ECHO',
+                'ERASE', 'DEL', 'MKDIR', 'MD', 'MOVE', 'RMDIR', 'RD', 'TYPE']:
+        args = ['/C', executable] + [arg.strip('"') for arg in args]
+        executable = os.environ['COMSPEC']
+
     if input_:
         input_file = file(resolve(input_), 'r')
     else: