Use pre-commit in CI and tox (home-assistant#27743)

.pre-commit-config.yaml

@@ -6,13 +6,15 @@ repos:
         args:
           - --safe
           - --quiet
+        files: ^((homeassistant|script|tests)/.+)?[^/]+\.py$
 -   repo: https://gitlab.com/pycqa/flake8
     rev: 3.7.8
     hooks:
     -   id: flake8
         additional_dependencies:
           - flake8-docstrings==1.3.1
           - pydocstyle==4.0.0
+        files: ^(homeassistant|script|tests)/.+\.py$
 # Using a local "system" mypy instead of the mypy hook, because its
 # results depend on what is installed. And the mypy hook runs in a
 # virtualenv of its own, meaning we'd need to install and maintain
@@ -26,4 +28,4 @@ repos:
         language: system
         types: [python]
         require_serial: true
-        exclude: ^script/scaffold/templates/
+        files: ^homeassistant/.+\.py$

.travis.yml

@@ -27,7 +27,10 @@ matrix:
     - python: "3.7"
       env: TOXENV=py37
 
-cache: pip
+cache:
+  pip: true
+  directories:
+    - $HOME/.cache/pre-commit
 install: pip install -U tox
 language: python
 script: travis_wait 50 tox --develop

azure-pipelines-ci.yml

@@ -45,9 +45,10 @@ stages:
 
           . venv/bin/activate
           pip install -r requirements_test.txt -c homeassistant/package_constraints.txt
+          pre-commit install-hooks
     - script: |
         . venv/bin/activate
-        flake8 homeassistant tests script
+        pre-commit run flake8 --all-files
       displayName: 'Run flake8'
   - job: 'Validate'
     pool:
@@ -83,9 +84,10 @@ stages:
 
           . venv/bin/activate
           pip install -r requirements_test.txt -c homeassistant/package_constraints.txt
+          pre-commit install-hooks
     - script: |
         . venv/bin/activate
-        ./script/check_format
+        pre-commit run black --all-files
       displayName: 'Check Black formatting'
 
 - stage: 'Tests'
@@ -180,7 +182,8 @@ stages:
 
           . venv/bin/activate
           pip install -e . -r requirements_test.txt -c homeassistant/package_constraints.txt
+          pre-commit install-hooks
     - script: |
         . venv/bin/activate
-        mypy homeassistant
+        pre-commit run mypy --all-files
       displayName: 'Run mypy'

tox.ini

@@ -34,11 +34,11 @@ deps =
 commands =
     python -m script.gen_requirements_all validate
     python -m script.hassfest validate
-    flake8 {posargs: homeassistant tests script}
+    pre-commit run flake8 {posargs: --all-files}
 
 [testenv:typing]
 deps =
      -r{toxinidir}/requirements_test.txt
      -c{toxinidir}/homeassistant/package_constraints.txt
 commands =
-    mypy homeassistant
+    pre-commit run mypy {posargs: --all-files}