Github workflow for running PSI-cardinality installation and benchmar…

…k tests for every PR (#31)

.flake8

@@ -0,0 +1,8 @@
+[flake8]
+select = E901,E999,F821,F822,F823
+max-line-length = 100
+exclude = .git,.eggs,__pycache__,build,dist,venv,third_party,tutorials
+max-complexity = 11
+show-source = true
+statistics = true
+count = true

.github/workflows/tests.yml

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+name: Tests
+
+on:
+  push:
+    branches: [ master ]
+    paths:
+    - '**.cpp'
+  pull_request:
+    types: [ opened, synchronize, reopened ]
+    paths:
+    - '**.cpp'
+
+jobs:
+  PSI-cpp-tests:
+
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [macos-latest, ubuntu-18.04]
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Install dependencies - Bazel
+      run: |
+        sudo apt update
+        sudo apt install cmake clang
+        # Step 1: Install the JDK (optional)
+        sudo apt-get install openjdk-11-jdk
+        # Step 2: Add Bazel distribution URI as a package source
+        echo "deb [arch=amd64] https://storage.googleapis.com/bazel-apt stable jdk1.8" | sudo tee /etc/apt/sources.list.d/bazel.list
+        curl https://bazel.build/bazel-release.pub.gpg | sudo apt-key add -
+        # Step 3: Install and update Bazel
+        sudo apt-get update && sudo apt-get install bazel
+        sudo apt-get install --only-upgrade bazel
+
+    - name: Lint with clang-format
+      run: |
+        # lint files (all .cpp and .h files) inplace
+        find ./psi-cardinality/  \( -iname *.h -o -iname *.cpp \) | xargs clang-format -i -style='google'
+        # print changes
+        git diff
+        # already well formated if 'git diff' doesn't output
+        ! ( git diff |  grep -q ^ ) || return 1
+    - name: Build the library
+      run: |
+        # fetch third_party libraries
+        git submodule init && git submodule update
+        # build the cpp library
+        bazel build //psi_cardinality/cpp/...
+    - name: Run tests
+      run: |
+        bazel test //psi_cardinality/cpp/...
+    - name: Run benchmark tests
+      run: |
+        bazel run -c opt //psi_cardinality/cpp:psi_cardinality_benchmark