Procex.Shell

You'll likely want to import this if you're using Procex for your shell, though you'll likely want to customize your promptFunction some time.

Documentation

promptFunction :: [String] -> Int -> IO String

For some ungodly reason, cd-ing inside ghci won't change the cwd of ghci itself, so completion, etc. will always happen from the directory you started ghci in. This is a quick hack to work around this by also running changeWorkingDirectory "above" the shell.

Do `:set prompt-function promptFunction` in GHCi

initInteractive :: IO ()

You need to run this if you want stdin to work properly inside ghci.

cd :: String -> IO ()

This goes hand-in-hand with promptFunction. It is a standard changeWorkingDirectory, but it sets PWD in the environment too.