Added get-product-name action.

unity-get-product-name/action.yaml

@@ -0,0 +1,25 @@
+name: unity-get-product-name
+description: "Get the correct Unity product name from a provided project."
+inputs:
+  projectPath:
+    description: "Path to the Unity project."
+    required: true
+    default: "."
+outputs:
+  productName:
+    description: "Unity product name."
+    value: ${{ steps.getProductName.outputs.productName }}
+runs:
+  using: "composite"
+  steps:
+  - name: "Get Unity project name."
+    id: getProductName
+    run: |
+      PRODUCT_KEY="productName"
+      PRODUCT_FILE="ProjectSettings/ProjectSettings.asset"
+      PRODUCT_FILE_PATH="${{ inputs.projectPath }}/$PRODUCT_FILE"
+
+      PRODUCT=$(grep -w $PRODUCT_KEY $PRODUCT_FILE_PATH | cut -d ':' -f2 | xargs)
+
+      echo "productName=$PRODUCT" >> "$GITHUB_OUTPUT"
+    shell: bash