kaleidoscope

Formatting

To check if files are already formatted (useful on CI):

$ fourmolu --mode check .

Find all the source files in a project with git ls-files and then use fourmulu to format those files:

$ fourmolu --mode inplace $(git ls-files '*.hs')
# Or to avoid hitting command line length limits and enable parallelism (12-way here):
$ git ls-files -z '*.hs' | xargs -P 12 -0 fourmolu --mode inplace