Support both Sprockets and Propshaft

.github/workflows/main.yml

@@ -5,14 +5,21 @@ on:
 
   pull_request:
 
+env:
+  RAILS_ENV: test
+
 jobs:
   build:
     runs-on: ubuntu-latest
-    name: Ruby ${{ matrix.ruby }}
+    name: Ruby ${{ matrix.ruby }} / ${{ matrix.asset_pipeline }}
     strategy:
+      fail-fast: false
       matrix:
         ruby:
           - '3.4.4'
+        asset_pipeline:
+          - sprockets
+          - propshaft
 
     steps:
       - uses: actions/checkout@v4
@@ -23,9 +30,19 @@ jobs:
         with:
           ruby-version: ${{ matrix.ruby }}
           bundler-cache: true
+        env:
+          BUNDLE_GEMFILE: gemfiles/${{ matrix.asset_pipeline }}.gemfile
+      - name: Build Propshaft assets
+        if: matrix.asset_pipeline == 'propshaft'
+        run: bundle exec rails dartsass:build
+        working-directory: spec/dummy
+        env:
+          BUNDLE_GEMFILE: ${{ github.workspace }}/gemfiles/${{ matrix.asset_pipeline }}.gemfile
       - name: Set up Chrome
         uses: browser-actions/setup-chrome@v1
         with:
           chrome-version: stable
       - name: Run the default task
         run: bundle exec rake
+        env:
+          BUNDLE_GEMFILE: gemfiles/${{ matrix.asset_pipeline }}.gemfile

.gitignore

@@ -4,10 +4,15 @@
 /coverage/
 /doc/
 /Gemfile.lock
+*gemfile.lock
 /pkg/
 /spec/reports/
+/spec/dummy/app/assets/builds/
 tmp/
 *.log
+node_modules/
+yarn.lock
+package-lock.json
 
 # Database files
 *.sqlite3