Implement 'mix escript.uninstall' task

Author: alco

lib/mix/lib/mix/tasks/archive.uninstall.ex

@@ -23,7 +23,7 @@ defmodule Mix.Tasks.Archive.Uninstall do
  Mix.Task.run "archive"
  end
  else
- Mix.raise "No archive was given to uninstall"
+ Mix.raise "No archive was given to archive.uninstall"
  end
  end
 end

lib/mix/lib/mix/tasks/escript.uninstall.ex

@@ -0,0 +1,29 @@
+defmodule Mix.Tasks.Escript.Uninstall do
+ use Mix.Task
+
+ @shortdoc "Uninstall escripts"
+
+ @moduledoc """
+ Uninstall local escripts:
+
+ mix escript.uninstall escript_name
+
+ """
+ @spec run(OptionParser.argv) :: :ok
+ def run(argv) do
+ {_, argv, _} = OptionParser.parse(argv)
+
+ if name = List.first(argv) do
+ path = Path.join(Mix.Local.escripts_path, name)
+ if File.regular?(path) do
+ File.rm!(path)
+ else
+ Mix.shell.error "Could not find a local escript named #{inspect name}. "<>
+ "Existing escripts are:"
+ Mix.Task.run "escript"
+ end
+ else
+ Mix.raise "No escript was given to escript.uninstall"
+ end
+ end
+end