CC compatible version of gradle-processor-arch.gradle

gradle-processor-arch.gradle

import java.nio.charset.Charset
import java.util.concurrent.TimeUnit

/**
 * This Gradle script captures the processor architecture
 * and adds these as a custom value.
 * This should be applied to the root project:
 * <code> apply from: file('gradle-processor-arch.gradle') </code>
 */

def buildScanApi = project.extensions.findByName('buildScan')
if (!buildScanApi) {
  return
}

buildScan.background { api ->
  Capture.captureProcessorArch(api)
}

class Capture {

  static void captureProcessorArch(def api) {
    def osName = System.getProperty("os.name")
    api.value("os.name", osName)

    def osArch = System.getProperty("os.arch")
    api.value("os.arch", osArch)

    if (isDarwin(osName)) {
      if (isTranslatedByRosetta()) {
        api.tag("M1-translated")
      } else if (isM1()) {
        api.tag("M1")
      }
    }
  }

  static boolean isDarwin(String osName) {
    return osName.contains("OS X") || osName.startsWith("Darwin")
  }

  static boolean isM1() {
    return execAndGetStdout("uname", "-p") == "arm"
  }

  // On Apple silicon, a universal binary may run either natively or as a translated binary
  // https://developer.apple.com/documentation/apple-silicon/about-the-rosetta-translation-environment#Determine-Whether-Your-App-Is-Running-as-a-Translated-Binary
  static boolean isTranslatedByRosetta() {
    return execAndGetStdout("sysctl", "sysctl.proc_translated") == "sysctl.proc_translated: 1"
  }

  static String execAndGetStdout(String... args) {
    Process process = args.toList().execute()
    try {
      def standardText = process.inputStream.withStream { s -> s.getText(Charset.defaultCharset().name()) }
      def ignore = process.errorStream.withStream { s -> s.getText(Charset.defaultCharset().name()) }

      def finished = process.waitFor(10, TimeUnit.SECONDS)
      finished && process.exitValue() == 0 ? trimAtEnd(standardText) : null
    } finally {
      process.destroyForcibly()
    }
  }

  static String trimAtEnd(String str) {
    ('x' + str).trim().substring(1)
  }
}