Update r.yml

Author: realxinzhao

.github/workflows/r.yml

@@ -26,12 +26,6 @@ jobs:
 
     steps:
       - uses: actions/checkout@v2
-
-      - name: Install Pandoc
-        run: |
-          sudo apt-get update -q
-          sudo apt-get install -y pandoc
-        shell: bash
 
       - name: Set up R ${{ matrix.r-version }}
         uses: r-lib/actions/setup-r@v2-branch
@@ -40,9 +34,10 @@ jobs:
 
       - name: Install dependencies
         run: |
-          install.packages(c("remotes", "rcmdcheck"))
-          remotes::install_deps(dependencies = TRUE)
-        shell: Rscript {0}
+          R -e "install.packages(c('remotes', 'rcmdcheck'), repos = 'https://cloud.r-project.org')"
+          R -e "remotes::install_deps(dependencies = TRUE)"
+        shell: bash
+        
       - name: Check
-        run: rcmdcheck::rcmdcheck(args = "--no-manual", error_on = "error")
-        shell: Rscript {0}
+          R -e "rcmdcheck::rcmdcheck(args = '--no-manual', error_on = 'error')"
+        shell: bash