init.test.luau cached luau installation in ci

Author: cameronpcampbell

.github/workflows/ci.yml

@@ -22,11 +22,29 @@ jobs:
           LATEST_TAG=$(curl -s https://api.github.com/repositories/148821256/releases/latest | jq -r '.tag_name')
           echo "LATEST_TAG=$LATEST_TAG" >> $GITHUB_ENV
 
+      - name: Luau Cache
+        id: cache-luau
+        uses: actions/cache@v4
+        with:
+          path: luau-binaries
+          key: luau-${{ env.LATEST_TAG }}
+          restore-keys: luau-
 
       - name: Debug cache hit
         run: echo "Cache hit? ${{ steps.cache-luau.outputs.cache-hit }}"
 
+      - name: Setup Luau (If Cached)
+        if: steps.cache-luau.outputs.cache-hit == 'true'
+        run: |
+          echo "Luau cache hit, copying binaries"
+          ls luau-binaries
+          sudo cp luau-binaries/luau /usr/local/bin/luau
+          sudo cp luau-binaries/luau-analyze /usr/local/bin/luau-analyze
+          sudo cp luau-binaries/luau-ast /usr/local/bin/luau-ast
+          sudo cp luau-binaries/luau-compile /usr/local/bin/luau-compile
+
       - name: Setup Luau (If Not Cached)
+        if: steps.cache-luau.outputs.cache-hit != 'true'
         run: |
           echo "Downloading Luau version ${{ env.LATEST_TAG }}"
           mkdir -p luau-binaries