diff --git a/Formula/ammonite-repl.rb b/Formula/ammonite-repl.rb
new file mode 100644
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+++ b/Formula/ammonite-repl.rb
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+class AmmoniteRepl < Formula
+  desc "Ammonite is a cleanroom re-implementation of the Scala REPL"
+  homepage "https://lihaoyi.github.io/Ammonite/#Ammonite-REPL"
+  url "https://github.com/lihaoyi/Ammonite/archive/0.4.8.tar.gz"
+  sha256 "5ba76b6dad8e4397e5163112fd6ae2c4a35ea52a0e612b6f8ac774e896d9aa87"
+
+  depends_on :java => "1.6+"
+  depends_on "sbt" => :build
+
+  def install
+    ENV["_JAVA_OPTIONS"] = "-Duser.home=#{buildpath}"
+    system "sbt", "repl/assembly"
+    bin.install "repl/target/scala-2.11/ammonite-repl-0.4.8-2.11.7" => "amm"
+  end
+
+  test do
+    ENV["_JAVA_OPTIONS"] = "-Duser.home=#{testpath}"
+    assert_equal "hello world!", shell_output("#{bin}/amm -c 'print(\"hello world!\")'")
+  end
+end