test.yml

name: Tests and Shellcheck

# Trigger the workflow on push or pull request
on: [push, pull_request]


jobs:

  tests:
    name: Run bash function tests on ${{ matrix.os }}
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os: [ macos-10.15 ] # macos-11.0

    steps:
    - uses: actions/checkout@v2

    # Run the 'java-version-tester' script and show&save (`tee`) the output to a
    # logfile; then grep the logfile for 'FAILED' entries which would cause grep
    # to exit with 0; then run 'test' command and swap the grep exit code
    # to return with 0 if grep doesn't match and return with 1 if it matches.
    - name: Run function tests in java-version-tester.sh
      run: |
        echo "Running tests..."
        bash test/java-version-tester.sh | tee test/java-version-tester.log
        echo "Tests done. Checking for failures..."
        test/check-log.sh test/java-version-tester.log FAILED


  shellcheck:
    name: Check bash syntax with shellcheck on ${{ matrix.os }}
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os: [ macos-10.15 ] # macos-11.0

    steps:
    - uses: actions/checkout@v2

    - name: Install shellcheck via HomeBrew
      run: |
        brew install shellcheck
        shellcheck -V

    # Test with shellcheck for bash syntax errors which should fail the build.
    # Until https://github.com/koalaman/shellcheck/issues/524 is implemented,
    # grep for errors and fail manually.
    #
    # Show & save the output via `tee` to a logfile; then grep the logfile for
    # 'error:' entries which would cause grep to exit with 0; then run 'test'
    # command and swap the grep exit code to return with 0 if grep doesn't match
    #  and return with 1 if it matches
    - name: Run shellcheck on the launcher stub
      run: |
        echo "Running shellcheck..."
        shellcheck -s bash -f gcc src/universalJavaApplicationStub | tee test/shellcheck.log
        echo "Shellcheck done. Checking for errors..."
        test/check-log.sh test/shellcheck.log "error:"