elixir-lang/elixir — pull request #1221 by alexrp (2013-06-09 21:33:15+00:00)
Title: Add a --force option to `mix local.install`.

Useful for makefiles and such where automation is desired. While it would be possible to just pipe a `Y` value into the Mix process, that ends up in shell-specific land. Easier to just have a portable `--force`.