codecov.yml

name: Code Coverage
on: [push, pull_request]
concurrency:
  group: format('{0}-{1}', ${{ github.ref }}, 'Code Coverage')
  cancel-in-progress: true

permissions: read-all

jobs:
  test:
    name: Code Coverage
    runs-on: gh-hosted-runners-16cores-1

    steps:
    - name: Check out code
      uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7

    - name: Check for changes in files relevant to code coverage
      uses: dorny/paths-filter@ebc4d7e9ebcb0b1eb21480bb8f43113e996ac77a # v3.0.1
      id: changes
      with:
        token: ''
        filters: |
          changed_files:
            - .github/workflows/codecov.yml
            - 'go/**'
            - go.mod
            - go.sum
            - Makefile

    - name: Set up Go
      if: steps.changes.outputs.changed_files == 'true'
      uses: actions/setup-go@0a12ed9d6a96ab950c8f026ed9f722fe0da7ef32 # v5.0.2
      with:
        go-version-file: go.mod

    - name: Set up python
      if: steps.changes.outputs.changed_files == 'true'
      uses: actions/setup-python@39cd14951b08e74b54015e9e001cdefcf80e669f # v5.1.1

    - name: Tune the OS
      if: steps.changes.outputs.changed_files == 'true'
      run: |
        sudo sysctl -w net.ipv4.ip_local_port_range="22768 65535"
        # Increase the asynchronous non-blocking I/O. More information at https://dev.mysql.com/doc/refman/5.7/en/innodb-parameters.html#sysvar_innodb_use_native_aio
        echo "fs.aio-max-nr = 1048576" | sudo tee -a /etc/sysctl.conf
        sudo sysctl -p /etc/sysctl.conf

    - name: Get dependencies
      if: steps.changes.outputs.changed_files == 'true'
      run: |
        export DEBIAN_FRONTEND="noninteractive"
        sudo apt-get update

        # Uninstall any previously installed MySQL first
        sudo systemctl stop apparmor
        sudo DEBIAN_FRONTEND="noninteractive" apt-get remove -y --purge mysql-server mysql-client mysql-common
        sudo apt-get -y autoremove
        sudo apt-get -y autoclean
        sudo deluser mysql
        sudo rm -rf /var/lib/mysql
        sudo rm -rf /etc/mysql

        # Get key to latest MySQL repo
        sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys A8D3785C

        # mysql80
        wget -c https://dev.mysql.com/get/mysql-apt-config_0.8.29-1_all.deb
        echo mysql-apt-config mysql-apt-config/select-server select mysql-8.0 | sudo debconf-set-selections
        sudo DEBIAN_FRONTEND="noninteractive" dpkg -i mysql-apt-config*
        sudo apt-get update
        sudo DEBIAN_FRONTEND="noninteractive" apt-get install -y mysql-server mysql-client

        sudo apt-get install -y make unzip g++ curl git wget ant openjdk-11-jdk eatmydata
        sudo service mysql stop
        sudo bash -c "echo '/usr/sbin/mysqld { }' > /etc/apparmor.d/usr.sbin.mysqld" # https://bugs.launchpad.net/ubuntu/+source/mariadb-10.1/+bug/1806263
        sudo ln -s /etc/apparmor.d/usr.sbin.mysqld /etc/apparmor.d/disable/
        sudo apparmor_parser -R /etc/apparmor.d/usr.sbin.mysqld || echo "could not remove mysqld profile"

        mkdir -p dist bin
        curl -L https://github.com/coreos/etcd/releases/download/v3.3.10/etcd-v3.3.10-linux-amd64.tar.gz | tar -zxC dist
        mv dist/etcd-v3.3.10-linux-amd64/{etcd,etcdctl} bin/

        go mod download
        go install golang.org/x/tools/cmd/goimports@latest
        
    - name: Run make tools
      if: steps.changes.outputs.changed_files == 'true'
      run: |
        make tools

    - name: Run unit tests and generate code coverage reports
      if: steps.changes.outputs.changed_files == 'true'
      timeout-minutes: 45
      run: |
        set -exo pipefail
        # We set the VTDATAROOT to the /tmp folder to reduce the file path of mysql.sock file
        # which musn't be more than 107 characters long.
        export VTDATAROOT="/tmp/"

        export NOVTADMINBUILD=1

        # Exclude endtoend tests from the coverage report.
        # TODO: figure out how best to include our endtoend tests in the coverage report.
        rm -rf go/test/endtoend go/*/endtoend go/vt/*/endtoend go/cmd/vttestserver

        eatmydata -- make unit_test_cover

        # Restore the files we deleted as codecov tries to fix their paths.
        git reset --hard HEAD

    - name: Upload coverage reports to codecov.io
      if: steps.changes.outputs.changed_files == 'true'
      uses: codecov/codecov-action@v4
      with:
        fail_ci_if_error: true
        verbose: true
      env:
        CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}