Convert nilmtool.py into a setuptools-generated script

At install time, the script "/usr/bin/nilmtool" will be created.

README.txt

@@ -8,3 +8,8 @@ Prerequisites:
 Install:
 
   python setup.py install
+
+Usage:
+
+  nilmdb-server --help
+  nilmtool --help

nilmdb/cmdline/__init__.py

@@ -1,3 +1,3 @@
 """nilmdb.cmdline"""
 
-from nilmdb.cmdline.cmdline import Cmdline
+from nilmdb.cmdline.cmdline import Cmdline, main

nilmdb/cmdline/cmdline.py

@@ -28,8 +28,8 @@ class JimArgumentParser(argparse.ArgumentParser):
 
 class Cmdline(object):
 
-    def __init__(self, argv):
-        self.argv = argv
+    def __init__(self, argv = None):
+        self.argv = argv or sys.argv[1:]
         self.client = None
 
     def arg_time(self, toparse):
@@ -154,3 +154,7 @@ class Cmdline(object):
 
         self.client.close()
         sys.exit(retval)
+
+# Entry point for the "nilmtool" script
+def main(): # pragma: no cover
+    nilmdb.cmdline.Cmdline().run()

nilmtool.py

@@ -1,6 +0,0 @@
-#!/usr/bin/python
-
-import nilmdb
-import sys
-
-nilmdb.cmdline.Cmdline(sys.argv[1:]).run()

setup.py

@@ -44,6 +44,11 @@ setup(name='nilmdb',
                    'nilmdb.client',
                    'nilmdb.cmdline',
                    ],
+      entry_points = {
+          'console_scripts': [
+              'nilmtool = nilmdb.cmdline:main',
+              ],
+          },
       ext_modules = cython_modules,
       zip_safe = False,
       )