Release fails dirty working directory

[Christewart]

[info] Set current project to scalacoin (in build file:/home/chris/dev/scalacoin/)
java.lang.RuntimeException: Aborting release. Working directory is dirty.
at scala.sys.package$.error(package.scala:27)
at sbtrelease.ReleaseStateTransformations$$anonfun$initialVcsChecks$1.apply(ReleaseExtra.scala:125)
at sbtrelease.ReleaseStateTransformations$$anonfun$initialVcsChecks$1.apply(ReleaseExtra.scala:122)
at sbtrelease.ReleasePlugin$autoImport$ReleaseKeys$$anonfun$2$$anonfun$apply$4.apply(ReleasePlugin.scala:140)
at sbtrelease.ReleasePlugin$autoImport$ReleaseKeys$$anonfun$2$$anonfun$apply$4.apply(ReleasePlugin.scala:140)
at scala.collection.immutable.List.foreach(List.scala:318)
at sbtrelease.ReleasePlugin$autoImport$ReleaseKeys$$anonfun$2.apply(ReleasePlugin.scala:140)
at sbtrelease.ReleasePlugin$autoImport$ReleaseKeys$$anonfun$2.apply(ReleasePlugin.scala:108)
at sbt.Command$$anonfun$applyEffect$1$$anonfun$apply$2.apply(Command.scala:58)
at sbt.Command$$anonfun$applyEffect$1$$anonfun$apply$2.apply(Command.scala:58)
at sbt.Command$$anonfun$applyEffect$2$$anonfun$apply$3.apply(Command.scala:60)
at sbt.Command$$anonfun$applyEffect$2$$anonfun$apply$3.apply(Command.scala:60)
at sbt.Command$.process(Command.scala:92)
at sbt.MainLoop$$anonfun$1$$anonfun$apply$1.apply(MainLoop.scala:98)
at sbt.MainLoop$$anonfun$1$$anonfun$apply$1.apply(MainLoop.scala:98)
at sbt.State$$anon$1.process(State.scala:184)
at sbt.MainLoop$$anonfun$1.apply(MainLoop.scala:98)
at sbt.MainLoop$$anonfun$1.apply(MainLoop.scala:98)
at sbt.ErrorHandling$.wideConvert(ErrorHandling.scala:17)
at sbt.MainLoop$.next(MainLoop.scala:98)
at sbt.MainLoop$.run(MainLoop.scala:91)
at sbt.MainLoop$$anonfun$runWithNewLog$1.apply(MainLoop.scala:70)
at sbt.MainLoop$$anonfun$runWithNewLog$1.apply(MainLoop.scala:65)
at sbt.Using.apply(Using.scala:24)
at sbt.MainLoop$.runWithNewLog(MainLoop.scala:65)
at sbt.MainLoop$.runAndClearLast(MainLoop.scala:48)
at sbt.MainLoop$.runLoggedLoop(MainLoop.scala:32)
at sbt.MainLoop$.runLogged(MainLoop.scala:24)
at sbt.StandardMain$.runManaged(Main.scala:53)
at sbt.xMain.run(Main.scala:28)
at xsbt.boot.Launch$$anonfun$run$1.apply(Launch.scala:109)
at xsbt.boot.Launch$.withContextLoader(Launch.scala:128)
at xsbt.boot.Launch$.run(Launch.scala:109)
at xsbt.boot.Launch$$anonfun$apply$1.apply(Launch.scala:35)
at xsbt.boot.Launch$.launch(Launch.scala:117)
at xsbt.boot.Launch$.apply(Launch.scala:18)
at xsbt.boot.Boot$.runImpl(Boot.scala:41)
at xsbt.boot.Boot$.main(Boot.scala:17)
at xsbt.boot.Boot.main(Boot.scala)
[error] Aborting release. Working directory is dirty.
[error] Use 'last' for the full log.

I think this is because I have untracked files. When I do git status I get

Your branch is ahead of 'origin/master' by 1 commit.
(use "git push" to publish your local commits)

Untracked files:
(use "git add ..." to include in what will be committed)

.idea/
build.sbt
project/
src/main/scala/org/scalacoin/util/

I was reading another issue ticket and it said that I need to ignore these untracked files, but I was unsure of where I need to put the piece of code that is required to ignore these files. Is it inside of my Build.scala file, my version.sbt file?

[raboof]

Add the files/directories to ignore in your .gitignore file (and commit that .gitignore file)

[raboof]

Looks like #42 adds an option to allow releasing even when there are untracked files (though IMHO it's better to add them to .gitignore :) )