setup.py: add a lint command

Add a command to perform coding style checks.

Signed-off-by: Andrea Righi <[email protected]>

setup.cfg

@@ -30,6 +30,7 @@ disable = invalid-name,
           too-many-statements,
           redefined-outer-name,
           # End of default disables
+          similarities,
           too-many-branches,
           too-many-return-statements,
           too-few-public-methods,

setup.py

@@ -3,12 +3,31 @@
 import os
 import sys
 import subprocess
-from setuptools import setup
+from glob import glob
+from setuptools import setup, Command
 from setuptools.command.build_py import build_py
 from setuptools.command.egg_info import egg_info
 from virtme_ng.version import VERSION
 
 
+class LintCommand(Command):
+    description = "Run coding style checks"
+    user_options = []
+
+    def initialize_options(self):
+        pass
+
+    def finalize_options(self):
+        pass
+
+    def run(self):
+        for cmd in ("flake8", "pylint"):
+            command = [cmd]
+            for pattern in ("*.py", "virtme/*.py", "virtme/*/*.py", "virtme_ng/*.py"):
+                command += glob(pattern)
+            subprocess.call(command)
+
+
 class BuildPy(build_py):
     def run(self):
         subprocess.check_call(
@@ -65,6 +84,7 @@ def run(self):
     cmdclass={
         "build_py": BuildPy,
         "egg_info": EggInfo,
+        "lint": LintCommand,
     },
     data_files=[("/etc", ["cfg/virtme-ng.conf"])],
     scripts=[