improve caching

.github/workflows/R-CMD-check.yaml

@@ -67,14 +67,14 @@ jobs:
           writeLines(sprintf("R-%i.%i", getRversion()$major, getRversion()$minor), ".github/R-version")
         shell: Rscript {0}
 
-      - name: Cache R packages
+      - name: Restore cached R packages
         if: runner.os != 'Windows'
-        uses: actions/cache@v2
+        id: restore-r-packages
+        uses: actions/cache/restore@v3
         with:
           path: ${{ env.R_LIBS_USER }}
           key: ${{ runner.os }}-${{ hashFiles('.github/R-version') }}-1-${{ hashFiles('.github/depends.Rds') }}
-          restore-keys: ${{ runner.os }}-${{ hashFiles('.github/R-version') }}-1-
-
+
       - name: Install system dependencies
         if: runner.os == 'Linux'
         run: |
@@ -90,6 +90,14 @@ jobs:
           remotes::install_cran("rcmdcheck")
         shell: Rscript {0}
 
+      - name: Cache R packages
+        if: runner.os != 'Windows'
+        id: cache-r-packages
+        uses: actions/cache/save@v3
+        with:
+          path: ${{ env.R_LIBS_USER }}
+          key: ${{ steps.restore-r-packages.outputs.cache-primary-key }}
+
       - name: Check
         env:
           _R_CHECK_CRAN_INCOMING_REMOTE_: false