update actions

Author: lorenzwalthert

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

@@ -0,0 +1,60 @@
+# Workflow derived from https://github.com/r-lib/actions/tree/v2/examples
+# Need help debugging build failures? Start at https://github.com/r-lib/actions#where-to-find-help
+
+on:
+  push:
+    branches: [main, master]
+  pull_request:
+    branches: [main, master]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref }}
+  cancel-in-progress: true
+
+name: R-CMD-check
+
+jobs:
+  R-CMD-check:
+    runs-on: ${{ matrix.config.os }}
+
+    name: ${{ matrix.config.os }} (${{ matrix.config.r }})
+
+    strategy:
+      fail-fast: false
+      matrix:
+        config:
+          - {os: macOS-latest,   r: 'release'}
+
+          - {os: windows-latest, r: 'release'}
+          # Use 3.6 to trigger usage of RTools35
+          - {os: windows-latest, r: '3.6'}
+
+          # Use older ubuntu to maximise backward compatibility
+          - {os: ubuntu-18.04,   r: 'devel', http-user-agent: 'release'}
+          - {os: ubuntu-18.04,   r: 'release'}
+          - {os: ubuntu-18.04,   r: 'oldrel-1'}
+          - {os: ubuntu-18.04,   r: 'oldrel-2'}
+          - {os: ubuntu-18.04,   r: 'oldrel-3'}
+          - {os: ubuntu-18.04,   r: 'oldrel-4'}
+
+    env:
+      GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
+      R_KEEP_PKG_SOURCE: yes
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - uses: r-lib/actions/setup-pandoc@v2
+
+      - uses: r-lib/actions/setup-r@v2
+        with:
+          r-version: ${{ matrix.config.r }}
+          http-user-agent: ${{ matrix.config.http-user-agent }}
+          use-public-rspm: true
+
+      - uses: r-lib/actions/setup-r-dependencies@v2
+        with:
+          extra-packages: any::rcmdcheck
+          needs: check
+
+      - uses: r-lib/actions/check-r-package@v2

.github/workflows/check-full.yaml

@@ -57,6 +57,7 @@
 * use pre-commit via GitHub Actions (#872).
 * terminate running jobs on new push to save resources (#888).
 * Use the {touchstone} GitHub Action instead of the literal script (#889).
+* upgrade R CMD check Github Actions to use `v2`.
 
 # styler 1.6.2