Add setup.py

This installs the emsdk script as a proper Python entry point

Author: martinRenou

.gitignore

@@ -1,5 +1,8 @@
 *.pyc
 __pycache__
+emsdk.egg-info
+dist
+build
 
 # Support for --embedded configs
 /.emscripten

MANIFEST.in

@@ -0,0 +1 @@
+recursive-include emsdk

emsdk

@@ -44,4 +44,4 @@ if [ -z "$EMSDK_PYTHON" ]; then
   EMSDK_PYTHON=python
 fi
 
-exec "$EMSDK_PYTHON" "$0.py" "$@"
+exec "$EMSDK_PYTHON" "emsdkpy/$0.py" "$@"

emsdkpy/__init__.py

@@ -0,0 +1 @@
+from .emsdk import main  # noqa

emcmdprompt.bat renamed to emsdkpy/emcmdprompt.bat

@@ -2833,7 +2833,9 @@ def expand_sdk_name(name, activating):
   return name
 
 
-def main(args):
+def main():
+  args = sys.argv[1:]
+
   if not args:
     errlog("Missing command; Type 'emsdk help' to get a list of commands.")
     return 1
@@ -3268,4 +3270,4 @@ def print_tools(t):
 
 
 if __name__ == '__main__':
-  sys.exit(main(sys.argv[1:]))
+  sys.exit(main())