release.sc

#!/bin/sh
exec scala "$0" "$@"
!#

/*
 * Copyright (c) 2011-15 Miles Sabin
 *
 * 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.
 */

import scala.io.Source
import scala.util.{Failure, Success, Try}
import sys.process._
import scala.io.StdIn._

object CrossBranchRelease {
  def main(args: Array[String]): Unit = {

    val result = (for {
      _ <- release("master")
      _ <- release("scala-2.10.x")
    } yield {
      "completed"
    }) match {
        case Success(msg) => msg
        case Failure(e) => e.getMessage
      }

    println(result)
  }

  def run(cmd: String): Try[String] = Try {
    print(cmd + "... ")
    cmd.!!
  }

  def readVersion() = Try {
    val str = Source.fromFile("version.sbt").mkString
    val VersionR = "version in ThisBuild := \"(.*)\"\\s?".r
    str match {
      case VersionR(v) => v
    }
  }

  def confirm(question: String) = Try {
    println(question)
    val answer = readBoolean()
    if(!answer)
      sys.error("Aborted by user!")
  }

  def release(branch: String): Try[String] = {
    for {
      _ <- run(s"git checkout $branch")
      v <- readVersion()
      a1 <- confirm(s"Do you want to publish version $v from branch $branch? yes/no")
      _ <- run("sbt clean compile publish-local")
    } yield {
      v
    }
  }

}

CrossBranchRelease.main(args)