Add github actions for CI

Author: mattwarkentin

.Rbuildignore

@@ -1,3 +1,4 @@
 ^examples$
 ^\.venv$
 ^LICENSE\.md$
+^\.github$

.github/.gitignore

@@ -0,0 +1 @@
+*.html

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

@@ -0,0 +1,50 @@
+# 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:
+
+name: R-CMD-check.yaml
+
+permissions: read-all
+
+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'}
+          - {os: ubuntu-latest,   r: 'devel', http-user-agent: 'release'}
+          - {os: ubuntu-latest,   r: 'release'}
+          - {os: ubuntu-latest,   r: 'oldrel-1'}
+
+    env:
+      GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
+      R_KEEP_PKG_SOURCE: yes
+
+    steps:
+      - uses: actions/checkout@v6
+
+      - 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 }}
+
+      - uses: r-lib/actions/setup-r-dependencies@v2
+        with:
+          extra-packages: any::rcmdcheck
+          needs: check
+
+      - uses: r-lib/actions/check-r-package@v2
+        with:
+          upload-snapshots: true
+          build_args: 'c("--no-manual","--compact-vignettes=gs+qpdf")'

README.md

@@ -1,5 +1,9 @@
 # INTEGRAL Radiomics
 
+<!-- badges: start -->
+[![R-CMD-check](https://github.com/mattwarkentin/INTEGRAL-Radiomics/actions/workflows/R-CMD-check.yaml/badge.svghttps://github.com/mattwarkentin/INTEGRAL-Radiomics/actions/workflows/R-CMD-check.yaml/badge.svghttps://github.com/mattwarkentin/INTEGRAL-Radiomics/actions/workflows/R-CMD-check.yaml/badge.svg)](https://github.com/mattwarkentin/INTEGRAL-Radiomics/actions/workflows/R-CMD-check.yaml)
+<!-- badges: end -->
+
 This repository contains the model and code for using the **INTEGRAL-Radiomics** screen-detected pulmonary nodule malignancy model reported in:
 
 > Warkentin MT, Al-Sawaihey H, Lam S, et al Radiomics analysis to predict pulmonary nodule malignancy using machine learning approaches _Thorax_ Published Online First: 09 January 2024. doi: 10.1136/thorax-2023-220226