pre-commit will manage all the linting (#1447)

Linting will be managed through tox instead of in a github action job. This will make require one to only maintain the pre-commit hooks in .pre-commit-config.yaml file and the same configuration will automatically run on ci.yaml (through tox) and get updated due to another github action (pre-commit-autoupdate.yaml)

.github/workflows/ci.yml

@@ -7,28 +7,11 @@ on:
     branches: [master]
 
 jobs:
-  lint:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-python@v2
-        with:
-          python-version: 3.8
-      - name: Install dependencies
-        run: python -m pip install flake8 isort black . djangorestframework
-      - name: Install and Run Pre-commit 
-        uses: pre-commit/action@v2.0.3
-      - name: Check for missing migrations
-        run: python manage.py makemigrations --check --dry-run
-        env:
-          DJSTRIPE_TEST_DB_VENDOR: sqlite
 
-#  todo remove lint job and manage everything in tox.ini
 #  todo remove docs job and manage everything in tox.ini
 
   docs:
     runs-on: ubuntu-latest
-    needs: ["lint"]
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-python@v2
@@ -44,7 +27,7 @@ jobs:
 
   tests:
     runs-on: ubuntu-latest
-    needs: ["lint", "docs"]
+    needs: ["docs"]
     strategy:
       fail-fast: true
       matrix:

.pre-commit-config.yaml

@@ -25,10 +25,3 @@ repos:
     hooks:
       - id: flake8
         additional_dependencies: [flake8-isort]
-
-
-# sets up .pre-commit-ci.yaml to ensure pre-commit dependencies stay up to date
-ci:
-    autoupdate_schedule: weekly
-    skip: []
-    submodules: false

tox.ini

@@ -1,6 +1,7 @@
 [tox]
 isolated_build = True
 envlist =
+    pre-commit
     py{36,37}-django{22,30,31,32}-{postgres,postgres-nativejson,mysql,sqlite}
     py{38,39}-django{22,30}-{postgres,postgres-nativejson,mysql,sqlite}
     py{38,39}-django{31,32,main}-{postgres,mysql,sqlite}{,-nativejson}
@@ -10,7 +11,7 @@ skip_missing_interpreters = True
 python =
     3.6: py36
     3.7: py37
-    3.8: py38
+    3.8: py38, pre-commit
     3.9: py39
 
 [testenv]
@@ -38,16 +39,10 @@ deps =
     pytest-django
     pytest-cov
 
-[testenv:lint]
+[testenv:pre-commit]
 skip_install = True
-deps =
-    flake8
-    isort
-    black
-commands =
-    flake8 {toxinidir} {posargs}
-    isort {toxinidir} --check --diff
-    black {toxinidir} --check
+deps = pre-commit
+commands = pre-commit run --all-files --show-diff-on-failure
 
 
 [pytest]
@@ -78,5 +73,3 @@ max-line-length = 88
 
 
 # todo add a section for docs
-# todo add lint to gh-actions and envlist
-# todo add a section for pre-commit