refactor: simplify Unity CI setup by removing game-ci activation and using built-in license handling

Author: msanatan

.github/workflows/claude-nl-suite.yml

@@ -67,82 +67,49 @@ jobs:
             echo "No MCP Python deps found (skipping)"
           fi
 
-      # --- Use game-ci for Unity activation (handles all license types) ---
-      - name: Activate Unity using game-ci
-        uses: game-ci/unity-activator@v2
-        env:
-          UNITY_EMAIL: ${{ secrets.UNITY_EMAIL }}
-          UNITY_PASSWORD: ${{ secrets.UNITY_PASSWORD }}
-          UNITY_LICENSE: ${{ secrets.UNITY_LICENSE }}
-          UNITY_SERIAL: ${{ secrets.UNITY_SERIAL }}
+      # Cache Unity Library to speed up runs
+      - uses: actions/cache@v4
         with:
-          unity-version: 2021.3.45f2
-
-      # Copy activation artifacts to Docker mount locations
-      - name: Prepare Unity license for Docker containers
-        shell: bash
-        run: |
-          set -euxo pipefail
-          mkdir -p "$RUNNER_TEMP/unity-config" "$RUNNER_TEMP/unity-local"
-
-          # game-ci stores license files in standard Unity locations
-          # Copy them to our Docker mount points
-          if [ -d "$HOME/.local/share/unity3d" ]; then
-            cp -r "$HOME/.local/share/unity3d"/* "$RUNNER_TEMP/unity-local/" || true
-          fi
-          if [ -d "$HOME/.config/unity3d" ]; then
-            cp -r "$HOME/.config/unity3d"/* "$RUNNER_TEMP/unity-config/" || true
-          fi
-
-          # Verify license files exist
-          echo "Unity license files prepared:"
-          find "$RUNNER_TEMP/unity-local" -type f || true
-          find "$RUNNER_TEMP/unity-config" -type f || true
-
-      # ---------- Warm up project (import Library once) ----------
-      - name: Warm up project (import Library once)
-        if: steps.detect.outputs.unity_ok == 'true'
-        shell: bash
-        env:
-          UNITY_IMAGE: ${{ env.UNITY_IMAGE }}
-        run: |
-          set -euxo pipefail
-          docker run --rm --network host \
-            -e HOME=/root \
-            -v "${{ github.workspace }}:/workspace" -w /workspace \
-            -v "$RUNNER_TEMP/unity-config:/root/.config/unity3d" \
-            -v "$RUNNER_TEMP/unity-local:/root/.local/share/unity3d" \
-            "$UNITY_IMAGE" /opt/unity/Editor/Unity -batchmode -nographics -logFile - \
-              -projectPath /workspace/TestProjects/UnityMCPTests \
-              -quit
+          path: TestProjects/UnityMCPTests/Library
+          key: Library-UnityMCPTests-2021.3.45f2-${{ hashFiles('TestProjects/UnityMCPTests/Assets/**', 'TestProjects/UnityMCPTests/Packages/**', 'TestProjects/UnityMCPTests/ProjectSettings/**') }}
+          restore-keys: |
+            Library-UnityMCPTests-2021.3.45f2-
+            Library-UnityMCPTests-
 
       # ---------- Clean old MCP status ----------
       - name: Clean old MCP status
         run: |
           set -eux
-          mkdir -p "$HOME/.unity-mcp"
-          rm -f "$HOME/.unity-mcp"/unity-mcp-status-*.json || true
+          mkdir -p "$RUNNER_TEMP/unity-status"
+          rm -f "$RUNNER_TEMP/unity-status"/unity-mcp-status-*.json || true
 
-      # ---------- Start headless Unity (persistent bridge) ----------
-      - name: Start Unity (persistent bridge)
+      # ---------- Start headless Unity with MCP bridge ----------
+      - name: Start Unity MCP bridge in background
         if: steps.detect.outputs.unity_ok == 'true'
         shell: bash
         env:
-          UNITY_IMAGE: ${{ env.UNITY_IMAGE }}
+          UNITY_EMAIL: ${{ secrets.UNITY_EMAIL }}
+          UNITY_PASSWORD: ${{ secrets.UNITY_PASSWORD }}
+          UNITY_LICENSE: ${{ secrets.UNITY_LICENSE }}
+          UNITY_SERIAL: ${{ secrets.UNITY_SERIAL }}
         run: |
           set -euxo pipefail
-          mkdir -p "$RUNNER_TEMP/unity-status"
+
+          # The unityci/editor image supports licensing via env vars
+          # Pass credentials and let Unity activate itself on first run
           docker rm -f unity-mcp >/dev/null 2>&1 || true
           docker run -d --name unity-mcp --network host \
-            -e HOME=/root \
+            -e UNITY_EMAIL \
+            -e UNITY_PASSWORD \
+            -e UNITY_LICENSE \
+            -e UNITY_SERIAL \
             -e UNITY_MCP_ALLOW_BATCH=1 \
             -e UNITY_MCP_STATUS_DIR=/root/.unity-mcp \
             -e UNITY_MCP_BIND_HOST=127.0.0.1 \
             -v "${{ github.workspace }}:/workspace" -w /workspace \
             -v "$RUNNER_TEMP/unity-status:/root/.unity-mcp" \
-            -v "$RUNNER_TEMP/unity-config:/root/.config/unity3d" \
-            -v "$RUNNER_TEMP/unity-local:/root/.local/share/unity3d" \
-            "$UNITY_IMAGE" /opt/unity/Editor/Unity -batchmode -nographics -logFile - \
+            ${{ env.UNITY_IMAGE }} \
+            /opt/unity/Editor/Unity -batchmode -nographics -logFile - \
               -stackTraceLogType Full \
               -projectPath /workspace/TestProjects/UnityMCPTests \
               -executeMethod MCPForUnity.Editor.MCPForUnityBridge.StartAutoConnect