easy-dhall-nix/dhall-json-simple.nix

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{ pkgs ? import <nixpkgs> {} }:
let
release = import ./release.nix;
in
pkgs.stdenv.mkDerivation rec {
name = "dhall-json-simple";
src = if pkgs.stdenv.isDarwin
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then pkgs.fetchurl {
url = release.dhall-json-darwin.url;
sha256 = release.dhall-json-darwin.hash;
}
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else pkgs.fetchurl {
url = release.dhall-json-linux.url;
sha256 = release.dhall-json-linux.hash;
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};
installPhase = ''
mkdir -p $out/bin
DHALL_TO_JSON=$out/bin/dhall-to-json
DHALL_TO_YAML=$out/bin/dhall-to-yaml
JSON_TO_DHALL=$out/bin/json-to-dhall
install -D -m555 -T dhall-to-json $DHALL_TO_JSON
install -D -m555 -T dhall-to-yaml $DHALL_TO_YAML
install -D -m555 -T json-to-dhall $JSON_TO_DHALL
mkdir -p $out/etc/bash_completion.d/
$DHALL_TO_JSON --bash-completion-script $DHALL_TO_JSON > $out/etc/bash_completion.d/dhall-to-json-completion.bash
$DHALL_TO_YAML --bash-completion-script $DHALL_TO_YAML > $out/etc/bash_completion.d/dhall-to-yaml-completion.bash
$JSON_TO_DHALL --bash-completion-script $JSON_TO_DHALL > $out/etc/bash_completion.d/json-to-dhall-completion.bash
'';
}