Setup GitHub Actions

Author: byroot

.github/workflows/ci.yml

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+name: CI
+on: [push, pull_request]
+jobs:
+  tests:
+    runs-on: ubuntu-latest
+    continue-on-error: ${{ matrix.experimental }}
+    name: ${{ matrix.ruby }}
+    strategy:
+      matrix:
+        experimental: [false]
+        ruby:
+          - "2.5"
+          - "2.6"
+          - "2.7"
+          - "3.0"
+          - "3.1"
+          - "3.2"
+          - "3.3"
+        rubyopt: [""]
+        include:
+          - { ruby: "3.3", rubyopt: "--enable-frozen-string-literal --debug-frozen-string-literal", experimental: false }
+          - { ruby: head, experimental: true }
+
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: ${{ matrix.ruby }}
+          bundler-cache: true
+
+      - name: Run tests ${{ matrix.rubyopt }}
+        timeout-minutes: 10
+        run: bundle exec rake RUBYOPT="${{ matrix.rubyopt }}"

.github/workflows/isolated.yml

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+name: CI isolated tests
+on: [push, pull_request]
+jobs:
+  tests:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        ruby: [2.7]
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: ${{ matrix.ruby }}
+          bundler-cache: true
+
+      - name: Run tests
+        run: bundle exec rake test_isolated