brittany

Pretty-print Haskell source files. More information: https://github.com/lspitzner/brittany#readme.

• Format a Haskell source file and print the result to stdout:
  brittany {{path/to/file.hs}}
• Format all Haskell source files in the current directory in-place:
  brittany --write-mode=inplace {{*.hs}}
• Check whether a Haskell source file needs changes and indicate the result through the programme's exit code:
  brittany --check-mode {{path/to/file.hs}}
• Format a Haskell source file using the specified amount of spaces per indentation level and line length:
  brittany --indent {{4}} --columns {{100}} {{path/to/file.hs}}
• Format a Haskell source file according to the style defined in the specified config file:
  brittany --config-file {{path/to/config.yaml}} {{path/to/file.hs}}