Use air styler

.github/workflows/style-and-lint.yaml

@@ -2,7 +2,7 @@
 # Need help debugging build failures? Start at https://github.com/r-lib/actions#where-to-find-help
 on:
   pull_request:
-    branches: [main, master]
+    branches: [not-main, not-master]
 
 name: style-and-lint
 

.github/workflows/style-with-air.yaml

@@ -0,0 +1,53 @@
+# 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:
+  pull_request:
+    branches: [main, master]
+
+name: style-with-air
+
+permissions: write-all
+
+jobs:
+  style_pkg:
+    runs-on: ubuntu-latest
+    env:
+     GH_TOKEN: ${{ github.token }}
+     GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: r-lib/actions/pr-fetch@v2
+        with:
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Install Nix
+        uses: DeterminateSystems/nix-installer-action@main
+
+      - uses: cachix/cachix-action@v15
+        with:
+          name: rstats-on-nix
+
+      - name: Build dev env
+        run: nix-build
+
+      - name: Run Air
+        run: nix-shell -I nixpkgs='https://github.com/rstats-on-nix/nixpkgs/archive/2025-02-28.tar.gz' -p air-formatter --run "air format ."
+
+      - name: config bot user and check for changes
+        run: |
+          git config --local user.name "$GITHUB_ACTOR"
+          git config --local user.email "[email protected]"
+          git diff-index --quiet HEAD || echo "has_changes=true" >> $GITHUB_ENV
+
+      - name: commit if changes
+        if: env.has_changes == 'true'
+        run: |
+          git add \*.R
+          git add \*.Rmd
+          git commit -m 'Style via {styler}'
+
+      - uses: r-lib/actions/pr-push@v2
+        with:
+          repo-token: ${{ secrets.GITHUB_TOKEN }}