Create an Scala SBT project

new-sbt.sh

#!/bin/bash

scala_version=2.12.1

function create_directories()
{
    project_name=$1
    mkdir -p ${project_name}/src/{main,test}/scala/com/timjstewart
}

function create_build_sbt_file()
{
    name=$1
    if [ ! -f ./build.sbt ]
    then
	echo "   CREATE build.sbt..."
	cat << EOF > build.sbt
name := "${name}"

scalaVersion := "${scala_version}"

version := "0.1.0"

// versions
val scalazVersion = "7.2.9"
val scalaCheckVersion = "1.13.4"
val scalaTestVersion = "3.0.1"

scalacOptions ++= Seq("-unchecked", "-deprecation")

libraryDependencies ++= Seq(

  // all dependencies
  "org.scalaz" %% "scalaz-core" % scalazVersion,

  // testing dependencies
  "org.scalacheck" %% "scalacheck" % scalaCheckVersion % "test",
  "org.scalatest" %% "scalatest" % scalaTestVersion % "test"
)
EOF
    else
	echo "   IGNORE build.sbt"
    fi
}

function create_main_source_file()
{
    src_file="src/main/scala/com/timjstewart/Main.scala"
    if [ ! -f ${src_file} ]
    then
	echo "   CREATE ${src_file}..."
	cat << EOF > ${src_file}
package com.timjstewart

import scalaz._
import Scalaz._

object Main {
  def main(args: Array[String]): Unit = {
    println("Hello, world!")
  }
}
EOF
    else
	echo "   IGNORE ${src_file}"
    fi
}

function create_main_test_file()
{
    src_file="src/test/scala/com/timjstewart/Main.scala"
    if [ ! -f ${src_file} ]
    then
	echo "   CREATE ${src_file}..."
	cat << EOF > ${src_file}
package com.timjstewart

import org.scalatest._

class MainSpec extends FunSpec with Matchers {
  describe("A Set") {
    describe("when empty") {
      it("should have size 0") {
        assert(Set.empty.size == 0)
      }

      it("should produce NoSuchElementException when head is invoked") {
        assertThrows[NoSuchElementException] {
        Set.empty.head
      }
    }
  }
 }
}
EOF
    else
	echo "   IGNORE ${src_file}"
    fi
}

function init_ensime()
{
    echo "   CONFIG ensime"
    sbt ensimeConfig > /dev/null
}

if [ "$#" == "1" ]
then
	project_name=$1
	echo "Creating SBT Project: ${project_name}"
	create_directories ${project_name}
	cd ${project_name}
	create_build_sbt_file ${project_name}
	create_main_source_file
	create_main_test_file
	init_ensime 
	echo "Done."
else
	echo "usage: new-sbt PROJECT_NAME"
	exit 1
fi