Update r-cmd-check.yml

More efficient R-CMD-CHECK workflow

.github/workflows/r-cmd-check.yml

@@ -5,6 +5,7 @@ on: [push, pull_request]
 jobs:
   check:
     runs-on: ${{ matrix.config.os }}
+    timeout-minutes: 660
     strategy:
       fail-fast: false
       matrix:
@@ -30,10 +31,18 @@ jobs:
         key: ${{ runner.os }}-texlive-${{ hashFiles('**/DESCRIPTION') }}
         restore-keys: ${{ runner.os }}-texlive-
 
+    - name: Cache R
+      uses: actions/cache@v4
+      with:
+        path: |
+          ${{ runner.tool_cache }}/R
+        key: ${{ runner.os }}-R-${{ matrix.config.r }}
+
     - name: Set up R
       uses: r-lib/actions/[email protected]
       with:
         r-version: ${{ matrix.config.r }}
+      continue-on-error: true
 
     - name: Install Linux system dependencies
       if: runner.os == 'Linux'
@@ -54,7 +63,6 @@ jobs:
         echo "C:\Program Files\MiKTeX\miktex\bin\x64" | Out-File -Append -FilePath $Env:GITHUB_PATH
         & "C:\Program Files\MiKTeX\miktex\bin\x64\initexmf.exe" --update-fndb
 
-
     - name: Install macOS system dependencies
       if: runner.os == 'macOS'
       run: |
@@ -67,7 +75,6 @@ jobs:
         # Install recommended fonts, including Helvetica
         sudo /Library/TeX/texbin/tlmgr install collection-fontsrecommended
 
-
     - name: Install rJava and other R dependencies
       run: |
         Rscript -e "install.packages('rJava')"
@@ -77,4 +84,3 @@ jobs:
     - name: Check
       shell: bash
       run: R CMD build . && R CMD check *tar.gz --as-cran
-