haskellhaskell-turtle

Preserving Bash Colors When Shelling out Commands in Haskell

Running ls --color=auto in bash shows directories as blue on my machine. Yet running stdout (inshell "ls --color=auto" empty) in Turtle loses all said color data. Is there a way to preserve coloring data?

Solution

  • The "auto" part means ls will only use colour when it knows that stdout is a "real" terminal. If you change to "always" then it will always use colour:

    stdout (inshell "ls --color=always" empty)