Save cache earlier

Author: nomeata

.github/workflows/main.yml

@@ -44,7 +44,7 @@ jobs:
           ghc-version: ${{ matrix.ghc }}
           stack-version: ${{ matrix.stack }}
 
-      - uses: actions/cache@v3
+      - uses: actions/cache/restore@v3
         name: Cache ~/.stack
         with:
           path: ~/.stack
@@ -54,6 +54,11 @@ jobs:
       - name: Build dependencies
         run: stack build --system-ghc --only-dependencies
 
+      - uses: actions/cache/save@v3
+        with:
+          path: ~/.stack
+          key: ${{ runner.os }}-${{ matrix.ghc }}-${{ github.sha }}
+
       - name: Build site executable
         run: stack build --system-ghc