exenv 0.1.0

Closes Homebrew/legacy-homebrew#20355.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>

Formula/exenv.rb

@@ -0,0 +1,23 @@
+require 'formula'
+
+class Exenv < Formula
+  homepage 'https://github.com/mururu/exenv'
+  url 'https://github.com/mururu/exenv/archive/v0.1.0.tar.gz'
+  sha1 '0984b6c260e42d750c8df68c8f48c19a90dc5db9'
+
+  head 'https://github.com/mururu/exenv.git'
+
+  def install
+    inreplace 'libexec/exenv', '/usr/local', HOMEBREW_PREFIX
+    prefix.install Dir['*']
+  end
+
+  def caveats; <<-EOS.undent
+    To use Homebrew's directories rather than ~/.exenv add to your profile:
+      export EXENV_ROOT=#{var}/exenv
+
+    To enable shims and autocompletion add to your profile:
+      if which exenv > /dev/null; then eval "$(exenv init -)"; fi
+    EOS
+  end
+end