Create pr-build.yml

Author: jnavila

Diff for: .github/workflows/pr-build.yml

@@ -0,0 +1,24 @@
+name: Pull Request Build
+
+on:
+  pull_request:
+    branches: [ main, master ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Download bootstrap file
+      run: wget https://raw.githubusercontent.com/progit/progit2-pub/master/bootstrap.sh
+    - name: Run bootstrap
+      run: sh bootstrap.sh
+    - name: Set up Ruby
+      uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: 2.7
+        bundler-cache: true # runs 'bundle install' and caches installed gems automatically
+
+    - name: Build book
+      run: bundle exec rake book:build_action