nativeruntime/build.gradle

import groovy.json.JsonSlurper
import java.nio.charset.StandardCharsets
import org.robolectric.gradle.DeployedRoboJavaModulePlugin
import org.robolectric.gradle.RoboJavaModulePlugin

apply plugin: RoboJavaModulePlugin
apply plugin: DeployedRoboJavaModulePlugin

static def osName() {
  def osName = System.getProperty("os.name").toLowerCase(Locale.US);
  if (osName.contains("linux")) {
    return "linux"
  } else if (osName.contains("mac")) {
    return "mac"
  } else if (osName.contains("win")) {
    return "windows"
  }
  return "unknown"
}

static def arch() {
  def arch = System.getProperty("os.arch").toLowerCase(Locale.US);
  if (arch.equals("x86_64") || arch.equals("amd64")) {
    return "x86_64"
  }
  return arch
}

static def authHeader() {
  def user = System.getenv('GITHUB_USER')
  if (!user) {
    throw new GradleException("Missing GITHUB_USER environment variable")
  }
  def token = System.getenv('GITHUB_TOKEN')
  if (!token) {
    throw new GradleException("Missing GITHUB_TOKEN environment variable")
  }
  def lp = "$user:$token"
  def encoded = Base64.getEncoder().encodeToString(lp.getBytes(StandardCharsets.UTF_8))
  return "Basic $encoded"
}

task cmakeNativeRuntime {
  doLast {
    mkdir "$buildDir/cpp"
    exec {
      workingDir "$buildDir/cpp"
      commandLine 'cmake', "-B", ".", "-S","$projectDir/cpp/", "-G", "Ninja"
    }
  }
}

task configureICU {
  onlyIf { !System.getenv('ICU_ROOT_DIR') }
  doLast {
    def os = osName()
    if (!file("$projectDir/external/icu/icu4c/source").exists()) {
      throw new GradleException("ICU submodule not detected. Please run `git submodule update --init`")
    }
    if (file("$projectDir/external/icu/icu4c/source/Makefile").exists()) {
      println("ICU Makefile detected, skipping ICU configure")
    } else {
      exec {
        workingDir "$projectDir/external/icu/icu4c/source"
        if (os.contains("linux")) {
          environment "CFLAGS", "-fPIC"
          environment "CXXFLAGS", "-fPIC"
          commandLine './runConfigureICU', 'Linux', '--enable-static', '--disable-shared'
        } else if (os.contains("mac")) {
          commandLine './runConfigureICU', 'MacOSX', '--enable-static', '--disable-shared'
        } else if (os.contains("win")) {
          commandLine 'sh', './runConfigureICU', 'MinGW', '--enable-static', '--disable-shared'
        } else {
          println("ICU configure not supported for OS '${System.getProperty("os.name")}'")
        }
      }
    }
  }
}

task buildICU {
  onlyIf { !System.getenv('ICU_ROOT_DIR') }
  dependsOn configureICU
  doLast {
    exec {
      def os = osName()
      if (os.contains("linux") || os.contains("mac") || os.contains("win")) {
        workingDir "$projectDir/external/icu/icu4c/source"
        commandLine 'make', '-j4'
      }
    }
  }
}

task makeNativeRuntime {
  dependsOn buildICU
  dependsOn cmakeNativeRuntime
  doLast {
    exec {
      workingDir "$buildDir/cpp"
      commandLine 'ninja'
    }
  }
}

task copyNativeRuntimeToResources {
  def os = osName()
  if (System.getenv('SKIP_NATIVERUNTIME_BUILD')) {
    println("Skipping the nativeruntime build");
  } else if (!os.contains("linux") && !os.contains("mac") && !os.contains("win")) {
    println("Building the nativeruntime not supported for OS '${System.getProperty("os.name")}'")
  } else {
    dependsOn makeNativeRuntime
    outputs.dir "$buildDir/resources/main/native"
    doLast {
      copy {
        from ("$buildDir/cpp")
        include '*libnativeruntime.*'
        rename { String fileName ->
          if (os.contains("win")) {
            fileName.replace("libnativeruntime", "robolectric-nativeruntime")
          } else {
            fileName.replace("libnativeruntime", "librobolectric-nativeruntime")
          }
        }
        into "$buildDir/resources/main/native/$os/${arch()}/"
      }
    }
  }
}

task copyNativeRuntimeFromGithubAction {
  outputs.dir "$buildDir/resources/main/native"
  doLast {
    def checkRunId = System.getenv('NATIVERUNTIME_ACTION_RUN_ID')
    def artifactsUrl = "https://api.github.com/repos/robolectric/robolectric/actions/runs/$checkRunId/artifacts"
    def downloadDir = new File("$buildDir/robolectric-nativeruntime-artifacts-$checkRunId")
    downloadDir.mkdirs()
    new JsonSlurper().parseText(new URL(artifactsUrl).text).artifacts.each { artifact ->
      def f = new File(downloadDir, "${artifact.name}.zip")
      if (!f.exists()) {
        println("Fetching ${artifact.name}.zip to $f")
        def conn = (HttpURLConnection) new URL(artifact.archive_download_url).openConnection()
        conn.instanceFollowRedirects = true
        conn.setRequestProperty("Authorization", authHeader())

        f.withOutputStream { out ->
          conn.inputStream.with { inp ->
            out << inp
            inp.close()
            out.close()
          }
        }
      }
      copy {
        from zipTree(f)
        include "librobolectric*"
        rename { String fileName ->
          fileName = fileName.replaceFirst("librobolectric.*dylib", "librobolectric-nativeruntime.dylib")
          return fileName.replaceFirst("librobolectric.*so", "librobolectric-nativeruntime.so")
        }
        def os = "linux"
        if (artifact.name.contains("-mac")) {
          os = "mac"
        }
        def arch = "x86_64"
        if (artifact.name.contains("-arm64")) {
          arch = "aarch64"
        }
        into "$buildDir/resources/main/native/$os/$arch/"
      }
    }
  }
}

processResources {
  if (System.getenv('NATIVERUNTIME_ACTION_RUN_ID')) {
    dependsOn copyNativeRuntimeFromGithubAction
  } else {
    dependsOn copyNativeRuntimeToResources
  }
}

dependencies {
  api project(":utils")
  api project(":utils:reflector")
  api "com.google.guava:guava:$guavaJREVersion"

  annotationProcessor "com.google.auto.service:auto-service:$autoServiceVersion"
  compileOnly "com.google.auto.service:auto-service-annotations:$autoServiceVersion"
  compileOnly AndroidSdk.MAX_SDK.coordinates

  testCompileOnly AndroidSdk.MAX_SDK.coordinates
  testRuntimeOnly AndroidSdk.MAX_SDK.coordinates
  testImplementation project(":robolectric")
  testImplementation "junit:junit:${junitVersion}"
  testImplementation "com.google.truth:truth:${truthVersion}"
}