dhall-haskell/dhall-bash/README.md

dhall-bash

For installation or development instructions, see:

• dhall-haskell - README

Full documentation here:

• dhall-bash instructions

Introduction

This dhall-bash package provides a Dhall to Bash compiler so that you can easily marshall Dhall values into your Bash scripts

This does not compile all available Dhall language constructs into Bash and only supports extracting primitive values, lists, optional values and records from normalized expressions.

Example

$ dhall-to-bash <<< '1'
1
$ dhall-to-bash <<< '"ABC" ++ "DEF"'
ABCDEF
$ dhall-to-bash --declare FOO <<< '"ABC" ++ "DEF"'
declare -r FOO=ABCDEF
$ eval $(dhall-to-bash --declare FOO <<< '"ABC" ++ "DEF"')
$ echo "${FOO}"
ABCDEF
$ dhall-to-bash --declare BAR
let replicate = https://prelude.dhall-lang.org/List/replicate
in  replicate 10 Natural 1
<Ctrl-D>
declare -r -a BAR=(1 1 1 1 1 1 1 1 1 1)
$ dhall-to-bash --declare BAZ <<< '{ qux = 1, xyzzy = True }'
declare -r -A BAZ=([qux]=1 [xyzzy]=true)