Add stylelinter

Author: tvdijen

.github/workflows/stylelinter.yml

@@ -0,0 +1,44 @@
+---
+
+on:  # yamllint disable-line rule:truthy
+  workflow_call:
+    inputs:
+      repository:
+        description: 'The repository that needs linting'
+        type: string
+        default: ${{ github.repository }}
+        required: false
+      ref:
+        description: 'The branch, tag or SHA that needs linting'
+        type: string
+        required: false
+        default: ${{ github.ref }}
+      pattern:
+        description: 'The file-pattern to match files that are being linted'
+        type: string
+        required: false
+        default: '**/*.{css,scss,sass}'
+      config_file:
+        description: 'The location of the linter-configuration'
+        type: string
+        required: false
+        default: 'tools/linters/.stylelintrc.json'
+
+jobs:
+  linter:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout Code
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          repository: ${{ inputs.repository }}
+          ref: ${{ inputs.ref }}
+
+      - name: Lint stylesheets
+        uses: actions-hub/stylelint@v1.1.6
+        env:
+          PATTERN: ${{ inputs.pattern }}
+          INDENT_SPACES: 2
+          CONFIG_PATH: ${{ inputs.config_file }}