updated GitHub actions

.github/workflows/check-standard.yaml

@@ -18,10 +18,10 @@ jobs:
       fail-fast: false
       matrix:
         config:
-          - {os: windows-latest, r: '3.6'}
-          - {os: macOS-latest, r: '3.6'}
+          - {os: windows-latest, r: 'release'}
+          - {os: macOS-latest, r: 'release'}
           - {os: macOS-latest, r: 'devel'}
-          - {os: ubuntu-16.04, r: '3.6', rspm: "https://demo.rstudiopm.com/all/__linux__/xenial/latest"}
+          - {os: ubuntu-16.04, r: 'release', rspm: "https://packagemanager.rstudio.com/cran/__linux__/xenial/latest"}
 
     env:
       R_REMOTES_NO_ERRORS_FROM_WARNINGS: true
@@ -40,6 +40,7 @@ jobs:
         run: |
           install.packages('remotes')
           saveRDS(remotes::dev_package_deps(dependencies = TRUE), ".github/depends.Rds", version = 2)
+          writeLines(sprintf("R-%i.%i", getRversion()$major, getRversion()$minor), ".github/R-version")
         shell: Rscript {0}
 
       - name: Cache R packages
@@ -47,8 +48,8 @@ jobs:
         uses: actions/cache@v1
         with:
           path: ${{ env.R_LIBS_USER }}
-          key: ${{ runner.os }}-r-${{ matrix.config.r }}-${{ hashFiles('.github/depends.Rds') }}
-          restore-keys: ${{ runner.os }}-r-${{ matrix.config.r }}-
+          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'
@@ -76,4 +77,4 @@ jobs:
         uses: actions/upload-artifact@master
         with:
           name: ${{ runner.os }}-r${{ matrix.config.r }}-results
-          path: check
+          path: check