zio.ZIOAppArgs.scala Maven / Gradle / Ivy

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/*
 * Copyright 2021-2024 John A. De Goes and the ZIO Contributors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package zio

import zio.stacktracer.TracingImplicits.disableAutoTrace

/**
 * A service that contains command-line arguments of an application.
 */
final case class ZIOAppArgs(getArgs: Chunk[String])

object ZIOAppArgs {

  def getArgs(implicit trace: Trace): ZIO[ZIOAppArgs, Nothing, Chunk[String]] =
    ZIO.serviceWith(_.getArgs)

  /**
   * Use when your App does not need to access the command-line arguments.
   */
  val empty: ULayer[ZIOAppArgs] = ZLayer.succeed(ZIOAppArgs(Chunk.empty))(Tag[ZIOAppArgs], Trace.empty)

}