Split lint to separate step

.github/workflows/build.yml

@@ -1,11 +1,10 @@
 name: Build
 
 on:
+  pull_request:
   push:
     branches:
       - master
-  pull_request:
-  workflow_dispatch:
 
 jobs:
   build:
@@ -24,6 +23,8 @@ jobs:
     strategy:
       matrix:
         container:
+          - image: python:latest
+            toxenv: lint
           - image: python:3.6
             toxenv: py36-sqla12
           - image: python:3.6
@@ -76,6 +77,7 @@ jobs:
       env:
         DATABASE_URL: postgresql://postgres:postgres@postgres
     - name: Upload Coverage
+      if: "!startsWith('lint', matrix.container.toxenv)"
       run: coveralls --service=github
       env:
         GITHUB_TOKEN: ${{ secrets.github_token }}

Makefile

@@ -43,9 +43,7 @@ clean-test:  ## remove test and coverage artifacts
 resetdb: $(RESETDBS)
 
 lint:  ## run pre-commit hooks on all files
-	-if python -c "import sys; exit(1) if (sys.version_info.major, sys.version_info.minor) < (3, 7) else exit(0)"; then \
-		pre-commit run --all-files ; \
-	fi
+	pre-commit run --all-files
 
 coverage: ## check code coverage quickly with the default Python
 	py.test $(PYTEST_OPTS) \

docker-compose.yml

@@ -21,6 +21,7 @@ services:
       - pg
     environment:
       - DATABASE_URL=postgresql://postgres:postgres@pg
+      - TOX_WORK_DIR=/tmp/tox
     volumes:
     - .:/code
     - /tmp:/root/.cache

tox.ini

@@ -1,6 +1,8 @@
 [tox]
+toxworkdir={env:TOX_WORK_DIR:.tox}
 skipsdist = true
 envlist =
+    lint
     pypy36-{drf38,drf39,drf310}-{sqla12,sqla13,sqla14}-{dj11,dj20,dj21,dj22}-
 
       py36-{sqla12,sqla13,sqla14}-{ drf38}-{dj11,dj20,dj21,dj22                    }
@@ -77,4 +79,9 @@ whitelist_externals =
 commands =
     pip freeze
     make resetdb
-    make -j lint coverage
+    make coverage
+
+[testenv:lint]
+basepython = python3.10
+commands =
+    make lint