Run flake8 separately from tests

Author: moomoohk

.github/workflows/tests.yml

@@ -38,12 +38,30 @@ jobs:
           print(f'{hashseed=}')
           open(os.environ['GITHUB_OUTPUT'], 'a').write(f'hashseed={hashseed}')"
 
+  flake8:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Check out code
+        uses: actions/checkout@main
+
+      - name: Set up Python 3.10
+        uses: actions/setup-python@main
+
+      - name: Run Flake8
+        uses: julianwachholz/flake8-action@v2
+        with:
+          checkName: flake8
+          config: flake8.ini
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
   # Tests job
   tests:
     # The type of runner that the job will run on
     runs-on: ubuntu-latest
 
-    needs: generate-hashseed
+    needs: [generate-hashseed, flake8]
 
     strategy:
       matrix:

flake8.ini

@@ -0,0 +1,5 @@
+[flake8]
+filename=
+    setup.py,
+    dpath/,
+    tests/

tox.ini

@@ -7,23 +7,18 @@
 ignore = E501,E722
 
 [tox]
-envlist = pypy37, py38, py39, py310, flake8
+envlist = pypy37, py38, py39, py310
 
 [gh-actions]
 python =
     pypy-3.7: pypy37
     3.8: py38
     3.9: py39
-    3.10: py310, flake8
+    3.10: py310
 
 [testenv]
 deps =
     hypothesis
     mock
     nose2
 commands = nose2 {posargs}
-
-[testenv:flake8]
-deps =
-    flake8
-commands = flake8 setup.py dpath/ tests/