semverfi

A library for parsing, querying, and ordering the always faithful, always loyal semantic versions

install

the cut and paste method

Add the following to your sbt build definition

libraryDependencies += "me.lessis" % "semverfi" % "0.1.0"

the civilized method

Using ls

ls-install semverfi

usage.

it parses

import semverfi._

val patches =
  Map("normal"    -> "1.0.1",
    "pre-release" -> "1.0.2-alpha.1",
    "build"       -> "1.0.3-alpha.1+build10",
    "garbage"     -> "asfnaasfiasdf")
    .values
    .map(Version.apply)
    .map({
       case n @ NormalVersion(_, _, p) =>
         p
       case pr @ PreReleaseVersion(_, _, p, _) =>
         p
       case b @ BuildVersion(_, _, p, _, _) =>
         p
       case i @ Invalid(in) =>
         println("%s was invalid" format in)
         i.patch
    })

it orders

The semver specification defines precedence rules for how to order versions. This library abides by those rules.

import semverfi._
import scala.util.Random.shuffle

val expected = List("1.0.0-alpha", "1.0.0-alpha.1",  "1.0.0-beta.2", "1.0.0-beta.11", "1.0.0-rc.1", "1.0.0-rc.1+build.1", "1.0.0", "1.0.0+0.3.7", "1.3.7+build", "1.3.7+build.2.b8f12d7", "1.3.7+build.11.e0f985a")

val shuffled = shuffle(expected)

val parsed = shuffled.map(Version.apply)

// print list of sorted versions zipped with expected input
(parsed.sorted zip expected).foreach(println)

it bumps

import semverfi._
Version("1.1.1") match {
  case version: Valid =>
    println(version.bumpMajor) // NormalVersion(2,0,0)
    println(version.bumpMinor) // NormalVersion(1,2,0)
    println(version.bumpPatch) // NormalVersion(1,1,2)
  case invalid =>
    println("invalid version")
}

Doug Tangren (softprops) 2012