pre-commit: chartpress --reset on Chart.yaml/values.yaml changes

.github/workflows/test.yml

@@ -32,14 +32,14 @@ jobs:
         with:
           python-version: '3.7'
 
-      - uses: pre-commit/action@v2.0.0
-
       - name: Install dependencies
         run: |
           . ci/common
           setup_helm
           KUBEVAL_VERSION=0.15.0 setup_kubeval
-          pip install yamllint
+          pip install chartpress yamllint
+
+      - uses: pre-commit/action@v2.0.0
 
       - name: Lint and validate
         # NOTE: Kubernetes resource validation can only be done against

.pre-commit-config.yaml

@@ -1,10 +1,28 @@
+# pre-commit is a tool to automatically do tasks before committing.
+#
+# Config reference: https://pre-commit.com/#pre-commit-configyaml---top-level
+#
 repos:
+  # Python code formatting
   - repo: https://github.com/ambv/black
     rev: 20.8b1
     hooks:
       - id: black
         args: [--target-version=py36]
+
+  # Shell script code formatting
   - repo: https://github.com/lovesegfault/beautysh
     rev: 6.0.1
     hooks:
       - id: beautysh
+
+  # Reset changes by chartpress
+  - repo: local
+    hooks:
+      - id: chartpress
+        name: chartpress --reset
+        files: jupyterhub/Chart.yaml|jupyterhub/values.yaml
+        description: Run `chartpress --reset` to clean up helm charts before committing.
+        entry: chartpress --reset
+        language: system
+        pass_filenames: false