template.rb

class Olp < Formula
  desc "With the Command Line Interface you can access HERE platform services from a command line or with scripts."
  homepage "https://platform.in.here.com/sdk/cli"
  url "https://artifact.api.platform.here.com/v1/references/hrn:here:artifact:::com.here.platform:cli:${OLP_CLI_VERSION}/cli-${OLP_CLI_VERSION}.tar.gz\?apiKey\=${ARTIFACT_SERVICE_API_KEY}"
  sha256 "${SHA256}"
  version "${OLP_CLI_VERSION}"
  license "Proprietary"

  depends_on "openjdk@17"

  def install
    prefix.install "HERE_NOTICE"
    prefix.install "LICENSE"
    libexec.install "cli${SCALA_SUFFIX}-${OLP_CLI_VERSION}.jar"
    # There are two versions of variables: build time and runtime
    # JAVA_VERSION, ALLOW_DEEP_REFLECTION, 2 and @ needs to be preserved during build time by using § instead of $
    (bin/"olp").write <<~EOS
      #!/bin/bash
      export JAVA_HOME="#{Language::Java.overridable_java_home_env("17")[:JAVA_HOME]}"
      JAVA_VERSION=$(§{JAVA_HOME}/bin/java -Xms32M -Xmx32M -version 2>&1 | awk -F '"' '/version/ {print §2}')
      # Check for '1.' entry because starting from JDK 9 version numbering is different (1.8 vs 9.0/10.0/11.0/... )
      if ! [[ "§JAVA_VERSION" =~ ^1"."+ ]]; then
        ALLOW_DEEP_REFLECTION="--add-opens java.base/java.lang=ALL-UNNAMED --add-opens=java.base/sun.security.util=ALL-UNNAMED"
      fi
      exec "§{JAVA_HOME}/bin/java" §{ALLOW_DEEP_REFLECTION:-} -Dfile.encoding=UTF8 -jar "#{libexec}/cli${SCALA_SUFFIX}-${OLP_CLI_VERSION}.jar" "§@"
    EOS
  end

  test do
    system bin/"olp", "version", "--help"
  end

end