✅Check code style when testing

Author: yezyilomo

runtests.py

@@ -1,13 +1,34 @@
 #!/usr/bin/env python
 import os
 import sys
+import subprocess
+
 from django.core.management import execute_from_command_line
 
 
+FLAKE8_ARGS = ['django_restql', 'tests', 'setup.py', 'runtests.py']
+WARNING_COLOR = '\033[93m'
+END_COLOR = '\033[0m'
+
+
+def flake8_main(args):
+    print('Running flake8 code linting')
+    ret = subprocess.call(['flake8'] + args)
+    msg = (
+        WARNING_COLOR + 'flake8 failed\n' + END_COLOR
+        if ret else 'flake8 passed\n'
+    )
+    print(msg)
+    return ret
+
+
 def runtests():
-    os.environ.setdefault("DJANGO_SETTINGS_MODULE", "tests.settings")
+    ret = flake8_main(FLAKE8_ARGS)
+    os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'tests.settings')
     argv = sys.argv[:1] + ['test'] + sys.argv[1:]
     execute_from_command_line(argv)
+    sys.exit(ret)  # Fail build if code linting fails
+
 
 if __name__ == '__main__':
     runtests()