metasim

 /** Utility command to convert in SBT a maven dependency fragment into SBT syntax. */
  def Pom2SbtCommand = "pom2sbt"

  def Pom2SbtHelp = " <pom.xml>"

  import complete.DefaultParsers._

  lazy val pomLibs2Sbt = Command(Pom2SbtCommand,
    Help((Pom2SbtCommand, Pom2SbtHelp)))(_ ⇒ fileParser(new File("./"))) { (state, file) ⇒
    import scala.xml.XML

metasim

scala> (1 to 4).map { i => "Happy Birthday " + (if (i == 3) "dear Simeon" else "to You") }.foreach { println }
Happy Birthday to You
Happy Birthday to You
Happy Birthday dear Simeon
Happy Birthday to You

metasim

addCommandAlias("package", "collectPackages")

addCommandAlias("stage", "universal:stage")

enablePlugins(GitBranchPrompt)

enablePlugins(JavaAppPackaging)

// TODO: Need to figure out how to look this up from the outer project
version in ThisBuild := "0.2.1-SNAPSHOT"

metasim

import sbt._
import sbt.Keys.commands
object OpenFolderHere extends AutoPlugin {
    override def trigger = allRequirements
    override lazy val projectSettings = Seq(
        commands += Command.command("openHere") { (state: State) =>
            "open .".!
            state
        }
    )

metasim

Here's one way of brute-force converting a bunch of Java code to Scala without too much concern for correctness.

Hard stuff is done by scalagen.

If the project is Maven-based with an existing pom.xml, all you need to do is run the scalagen Maven plugin:

mvn com.mysema.scalagen:scalagen-maven-plugin_2.10.1:0.3.2:main -DtargetFolder=target/scala

You have to have a pom.xml file for this to work. If your project is configured with sbt (or have no project!), use the sbt makePom task to create one:

metasim

import akka.actor._
import akka.stream.actor.ActorPublisher
import akka.stream.scaladsl._
import akka.stream.{ FlowMaterializer, MaterializerSettings }
import akka.testkit._
import org.scalatest.FunSpecLike

import scala.concurrent.Future
import scala.concurrent.duration._
class FutureMergeTest extends TestKit(ActorSystem()) with FunSpecLike with ImplicitSender {

metasim

// NB: Requires SBT >= 0.13.5
package pomhelpers

import sbt._
import Keys._
import sbt.complete.Parser
import sbt.complete.DefaultParsers._

object ExtractMvnDependencies extends AutoPlugin {
    override def trigger = allRequirements

metasim

//  Comparison of using `null` vs `None` to represetn NAs

val csvtext = "1,4,5,6,,9,12"
val tokens = csvtext.split(",").toList
// Null NA Approach

val nullNAs = tokens.map(t => if(t.isEmpty) null else t)
val numFromNulled = for {
    t <- nullNAs
    num = if(t == null) null else t.toInt

metasim

Central Virginia Scala Scholars

Agenda

1. Introductions
   • Name, company, kind of development, etc.
2. Discussion

metasim

#!/usr/bin/env ruby -wKU
# -*- coding: utf-8 -*-

# Adapted from Brett Terpstra’s original “Markdown to Evernote” service (http://brettterpstra.com/a-better-os-x-system-service-for-evernote-notes-with-multimarkdown/)
# Martin Kopischke 2011 – License: Creative Commons Attribution Share-Alike (CC BY-SA) 3.0 Unported (http://creativecommons.org/licenses/by-sa/3.0/)
# Changes:	– support for setting the creation date with 'Date:' MMD metadata attribute
#           – create only one Evernote note per (Multi)Markdown input passed (instead of one per line)
#			– do not choke on shell escape characters (use Tempfile instead of shell pipe for osascript)
#			– default to MultiMarkdown 3 executable (instead of MMD 2 Perl script)
#			– make smart typography processing optional (set SMARTY to 'false' to bypass processing;