Hpack.Dhall

The functions in this module make it possible to configure an hpack package description with Dhall instead of YAML. When doing so, note that all functions resolve imports relative to the location of the given .dhall input file.

Documentation

fileToJson

Arguments

:: FilePath

Path to a .dhall file

-> IO (Either String ([String], Value))

A file decoder for hpack. This should evaluate to a single record with hpack's top-level fields.

showJson

Arguments

:: Maybe (Text -> Text -> Ordering)

An ordering of JSON fields.

-> FilePath

Path to a .dhall file

-> IO String

Pretty prints JSON for the package description.

showYaml

Arguments

:: Maybe (Text -> Text -> Ordering)

An ordering of YAML fields.

-> FilePath

Path to a .dhall file

-> IO String

Pretty prints YAML for the package description.

showDhall

Arguments

:: FilePath

Path to a .dhall file

-> IO String

Pretty prints the package description Dhall expression, resolving imports relative to the location of the .dhall file.

packageConfig :: FilePath

The default package file name is package.dhall.