Common utility libraries for Scala, mostly small stuff I don't want to have multiple copies of lying around.

libraryDependencies += Seq( "com.github.morgen-peschke" % "commons-core" % "0.1.0", "com.github.morgen-peschke" % "commons-collections" % "0.1.0", "com.github.morgen-peschke" % "commons-decline" % "0.1.0", "com.github.morgen-peschke" % "commons-scalacheck" % "0.1.0" % Test ) 

def ivyDeps = Agg( ivy"com.github.morgen-peschke::commons-core:0.1.0", ivy"com.github.morgen-peschke::commons-collections:0.1.0", ivy"com.github.morgen-peschke::commons-decline:0.1.0", ivy"com.github.morgen-peschke::commons-scalacheck:0.1.0" ) 

This is a home for the most generic of utilities.

A placeholder indicating completion, which provides a work-around for the type issues which can arise when returning things like Future[Unit].

This is very similar to akka.Done, and exists as a lightweight alternative to the same.

A pure Scala, lightweight implementation of python's slice syntax (e.g [start:stop:step]).

Helpers and extensions for working with the Scala standard library.

An alternative to IterableOnce#takeWhile, which is primarily differentiated on two points:

1. The elements are consumed until the predicate is true, rather than while the predicate is true, so the logic is reversed.
2. The final element is also taken.

A collection of utilities and syntax to make working with Scalacheck Gen smoother.

Highlights include:

• (0 to 10).choose as a more flexible alternative to Gen.chooseNum(0, 10) This is particularly handy because (a until b by c).choose is equivalent to something closer to this:

  Gen.chooseNum(0, (b-a) - 1).map(l => a + (c * l))

• RangeGens.ranges(min, max) generates Ranges within those bounds

• NumericRangeGens.numericRanges(min, max) generates NumericRanges within those bounds

• (g: Gen[A]).as.list(a to b) as an alternative to Gen.chooseNum(a, b).flatMap(Gen.listOfN(g, foo))

  Variants also exist to produce Vector, Chain, and the NonEmpty* equivalents, as well as one to lift a Gen[Char] into a Gen[String]

• (g: Gen[A]).optional as a chaining alternative to Gen.option(g)

Instances for Decline, notably one for Slice as it tends to be very handy for CLI utilities.