Introduce 'pylint' for static code analysis (fixes #289)

Signed-off-by: Vasilis Tsiligiannis <acinonyx@openwrt.gr>

.gitlab-ci.yml

@@ -21,14 +21,14 @@ static:
   before_script:
     - pip install tox~=3.8.0
   script:
-    - tox -e "py2-flake8,isort,yapf"
+    - tox -e "py2-flake8,isort,yapf,py2-pylint"
 static3:
   stage: static
   image: python:3
   before_script:
     - pip install tox~=3.8.0
   script:
-    - tox -e "py3-flake8"
+    - tox -e "py3-flake8,py3-pylint"
 docs:
   stage: build
   image: python:2

.pylintrc

@@ -0,0 +1,41 @@
+[MASTER]
+ignore=_version.py,migrations
+load-plugins=pylint_django
+
+[MESSAGES CONTROL]
+disable=
+    C0103,
+    C0111,
+    C0122,
+    C0411,
+    C0412,
+    C0325,
+    C1801,
+    E1101,
+    E0213,
+    R0101,
+    R0201,
+    R0401,
+    R0801,
+    R0901,
+    R0903,
+    R0914,
+    R0915,
+    R1705,
+    W0105,
+    W0107,
+    W0110,
+    W0150,
+    W0201,
+    W0221,
+    W0223,
+    W0511,
+    W0612,
+    W0613,
+    W0621,
+    W0703,
+    W1201,
+    W1202,
+    W5102,
+    W5103,
+    W5104,

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = {py2,py3}-flake8,isort,yapf,{py2,py3}-build,py2-pytest
+envlist = {py2,py3}-flake8,isort,yapf,{py2,py3}-{pylint,build},py2-pytest
 
 [testenv:py2-flake8]
 deps =
@@ -45,6 +45,24 @@ skip_install = True
 commands =
     python setup.py sdist bdist_wheel
 
+[testenv:py2-pylint]
+deps =
+    pylint==1.9.4
+    pylint-django==0.11.1
+extras = dev
+commands = pylint \
+    {envsitepackagesdir}/db \
+    {envsitepackagesdir}/auth0login
+
+[testenv:py3-pylint]
+deps =
+    pylint==2.3.1
+    pylint-django==2.0.9
+extras = dev
+commands = pylint \
+    {envsitepackagesdir}/db \
+    {envsitepackagesdir}/auth0login
+
 [testenv:deps]
 install_command = python -m pip install --no-deps {opts} {packages}
 recreate = True