cabal-prettify: Prettify your Cabal package configuration files!

See cabal-prettify.cabal for an example.

Quick start:

• Prettify the configuration file of the package you are in right now:

  cabal-prettify --this
  

• Prettify specified configuration files:

  cabal-prettify cabal-prettify.cabal examples/**/*.cabal
  

• Prettify standard input:

  cabal-prettify --filter < cabal-prettify.cabal
  

• Tidy up the directory structure:

  cabal-prettify --this --move
  

• Check but do not modify, exit successfully if everything is already well formatted:

  cabal-prettify --this --check
  

• Automatically add all Haskell files to exposed-modules or other-modules:

  cabal-prettify --this --expose
  

Minutiae:

1. Prettified files are backed up with the extension *.backup.

   1. Files that are already pretty are not backed up.

      This ensures that running cabal-prettify twice in a row does not overwrite the original.

Prior art:

• cabal-fmt