Add yaml linter

.github/workflows/changelog-enforcer.yml

@@ -4,7 +4,7 @@ on:
       types: [opened, synchronize, reopened, ready_for_review, labeled, unlabeled]
 
 jobs:
-  # Enforces the update of a changelog file on every pull request 
+  # Enforces the update of a changelog file on every pull request
   changelog:
     runs-on: ubuntu-latest
     steps:

.github/workflows/validate_yaml_files.yml

@@ -0,0 +1,31 @@
+---
+
+# Based on code from https://github.com/marketplace/actions/yaml-lint
+
+name: Yaml Lint
+
+on:
+  pull_request:
+      types: [opened, synchronize, reopened, ready_for_review, labeled, unlabeled]
+
+# This validation is equivalent to running on the command line:
+#   yamllint -d relaxed --no-warnings
+# and is controlled by the .yamllint.yml file
+jobs:
+  validate-YAML:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - id: yaml-lint
+        name: yaml-lint
+        uses: ibiqlik/action-yamllint@v3
+        with:
+          no_warnings: true
+          format: colored
+          config_file: .yamllint.yml
+
+      - uses: actions/upload-artifact@v4
+        if: always()
+        with:
+          name: yamllint-logfile
+          path: ${{ steps.yaml-lint.outputs.logfile }}

.yamllint.yml

@@ -0,0 +1,29 @@
+---
+
+extends: default
+
+rules:
+  braces:
+    level: warning
+    max-spaces-inside: 1
+  brackets:
+    level: warning
+    max-spaces-inside: 1
+  colons:
+    level: warning
+  commas:
+    level: warning
+  comments: disable
+  comments-indentation: disable
+  document-start: disable
+  empty-lines:
+    level: warning
+  hyphens:
+    level: warning
+  indentation:
+    level: warning
+    indent-sequences: consistent
+  line-length:
+    level: warning
+    allow-non-breakable-inline-mappings: true
+  truthy: disable

CHANGELOG.md

@@ -13,6 +13,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
+- Added YAML linter
+
 ### Changed
 
 ### Deprecated