Add lintr starter workflow

code-scanning/lintr.yml

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+# This workflow uses actions that are not certified by GitHub.
+# They are provided by a third-party and are governed by
+# separate terms of service, privacy policy, and support
+# documentation.
+# lintr provides static code analysis for R.
+# It checks for adherence to a given style,
+# identifying syntax errors and possible semantic issues,
+# then reports them to you so you can take action.
+# More details at https://lintr.r-lib.org/
+
+name: lintr
+
+on:
+  push:
+    branches: [ $default-branch, $protected-branches ]
+  pull_request:
+    # The branches below must be a subset of the branches above
+    branches: [ $default-branch ]
+  schedule:
+    - cron: $cron-weekly
+
+permissions:
+  contents: read
+
+jobs:
+  lintr:
+    name: Run lintr scanning
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read # for checkout to fetch code
+      security-events: write # for github/codeql-action/upload-sarif to upload SARIF results
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Setup R
+        uses: r-lib/actions/setup-r@4e1feaf90520ec1215d1882fdddfe3411c08e492
+
+      - name: Setup lintr
+        uses: r-lib/actions/setup-r-dependencies@4e1feaf90520ec1215d1882fdddfe3411c08e492
+        with:
+          extra-packages: lintr
+
+      - name: Run lintr
+        run: lintr::sarif_output(lintr::lint_dir("."), "lintr-results.sarif")
+        shell: Rscript {0}
+        continue-on-error: true
+
+      - name: Upload analysis results to GitHub
+        uses: github/codeql-action/upload-sarif@v2
+        with:
+          sarif_file: lintr-results.sarif
+          wait-for-processing: true

code-scanning/properties/lintr.properties.json

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+{
+  "name": "lintr",
+  "description": "lintr provides static code analysis for R.",
+  "iconName": "lintr",
+  "categories": [ "Code Scanning", "R" ]
+}