Carthage mangment tasks

carthage.groovy

/** Carthage Tasks **/

task checkCarthageInstalled(type: Exec) {
  executable = "carthage"
  standardOutput = new ByteArrayOutputStream()
  ignoreExitValue = true
  doLast {
    if (execResult.exitValue != 0) {
      throw new GradleException("Please install Carthage with `brew install carthage`")
    }
  }
}

task runCarthageBootstrap(type: Exec) {
  onlyIf { !project.file("${project.projectDir}/Cartfile.resolved").exists() }
  commandLine "carthage", "bootstrap"
  standardOutput = new ByteArrayOutputStream()
}

task runCarthageOutdated(type: Exec) {
  onlyIf { project.file("${project.projectDir}/Cartfile.resolved").exists() }
  commandLine "carthage", "outdated"
  standardOutput = new ByteArrayOutputStream()
}

afterEvaluate {
  tasks.findByName("checkKonanCompiler")
      .dependsOn(checkCarthageInstalled, runCarthageBootstrap, runCarthageOutdated)
}