Added pre-commit.py script

pre_commit/run.py

@@ -0,0 +1,42 @@
+
+import argparse
+
+
+def install():
+    """Install the pre-commit hook."""
+    raise NotImplementedError
+
+
+def uninstall():
+    """Uninstall the pre-commit hook."""
+    raise NotImplementedError
+
+
+def run_hooks(arguments):
+    """Actually run the hooks."""
+    raise NotImplementedError
+
+
+def run(argv):
+    parser = argparse.ArgumentParser()
+
+    group = parser.add_mutually_exclusive_group(required=False)
+    group.add_argument(
+        '-i', '--install',
+        action='store_true',
+        help='Install the pre-commit script.',
+    )
+    group.add_argument(
+        '-u', '--uninstall',
+        action='store_true',
+        help='Uninstall the pre-commit script.',
+    )
+
+    args = parser.parse_args(argv)
+
+    if args.install:
+        install()
+    elif args.uninstall:
+        uninstall()
+    else:
+        run_hooks(args)