Initial revision

Author: eamelink

LICENSE

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+The MIT License (MIT)
+
+Copyright (c) 2014 Erik Bakker
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

README.md

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+# sbt-purescript
+
+sbt-purescript is an SBT plugin that compiles [PureScript](http://purescript.org) files to Javascript. It uses and follows the conventions of [sbt-web](https://github.com/sbt/sbt-web).
+
+# Usage
+
+This plugin is not hosted yet. A minimal example can be found in the `example` directory.

build.sbt

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+sbtPlugin := true
+
+organization := "net.eamelink.sbt"
+
+name := "sbt-purescript"
+
+version := "0.1-SNAPSHOT"
+
+scalaVersion := "2.10.4"
+
+scalacOptions += "-feature"
+
+addSbtPlugin("com.typesafe.sbt" % "sbt-web" % "1.0.0")
+
+publishMavenStyle := false
+
+

example/build.sbt

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+lazy val root = (project in file(".")).enablePlugins(SbtWeb)

example/project/build.properties

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+sbt.version=0.13.5

example/project/plugins.sbt

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+lazy val root = project.in(file(".")).dependsOn(pureScriptPlugin)
+
+lazy val pureScriptPlugin = file("../..")

example/src/main/assets/purescript/helloworld.purs

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+module Main where
+
+import Debug.Trace
+
+main = trace "Hello, World!"

project/build.properties

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+sbt.version=0.13.5

src/main/scala/net/eamelink/sbt/purescript/SbtPureScript.scala

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+package net.eamelink.sbt.purescript
+
+import sbt._
+import com.typesafe.sbt.web.SbtWeb
+import sbt.Keys._
+
+object Import {
+  object PureScriptKeys {
+    val purescript = TaskKey[Seq[File]]("purescript", "Invoke the PureScript compiler.")
+    val binary = SettingKey[String]("purescript-binary", "The purescript binary.")
+    val outputFile = SettingKey[File]("purescript-output-file", "Purescript output file.")
+  }
+}
+
+object SbtPureScript extends AutoPlugin {
+
+  override def requires = SbtWeb
+
+  override def trigger = AllRequirements
+
+  val autoImport = Import
+
+  import SbtWeb.autoImport._
+  import WebKeys._
+  import autoImport.PureScriptKeys._
+
+  val basePureScriptSettings = Seq(
+    includeFilter := "*.purs",
+    outputFile := (public in Assets).value / "js" / "main.js",
+    binary := "psc")
+
+  override def projectSettings =
+    inConfig(Assets)(basePureScriptSettings) ++
+      Seq(
+        purescript := {
+          val sourceDir = (sourceDirectory in Assets).value
+          val sources = sourceDir ** (includeFilter in Assets in purescript).value
+          val sourcePaths = sources.getPaths
+          streams.value.log.info(s"Purescript compiling ${sourcePaths.length} sources")
+
+          val command = List(
+            (binary in Assets).value,
+            "--output", (outputFile in Assets).value.absolutePath) ++
+            sourcePaths
+
+          command ! (streams.value.log)
+
+          Seq((outputFile in Assets).value)
+        })
+
+}