ci: merge style and doc, doc depends on style

Author: dshemetov

.github/workflows/document.yaml

@@ -71,3 +71,38 @@ jobs:
           else
             echo "No changes to commit."
           fi
+
+  document:
+    needs: style
+    runs-on: ubuntu-latest
+    env:
+      GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - name: Setup R
+        uses: r-lib/actions/setup-r@v2
+        with:
+          use-public-rspm: true
+
+      - name: Install dependencies
+        uses: r-lib/actions/setup-r-dependencies@v2
+        with:
+          extra-packages: any::roxygen2
+          needs: roxygen2
+
+      - name: Document
+        run: roxygen2::roxygenise()
+        shell: Rscript {0}
+
+      - name: Commit and push changes
+        run: |
+          git config --local user.name "$GITHUB_ACTOR"
+          git config --local user.email "[email protected]"
+          git add man/\* NAMESPACE DESCRIPTION
+          git commit -m "docs: update documentation (GHA)" || echo "No changes to commit"
+          git pull --ff-only
+          git push origin