Christian Kjær Tehnix

Setting up Nix

Following this thread on getting Nix set up on macOS Catalina, there's a few steps involved (assuming you have no /nix folder):

Set up nix folder: echo 'nix' | sudo tee -a /etc/synthetic.conf
Reboot for it to take effect
Create an APFS volume for Nix (might need to use a different diskX number, check diskutil list for more):

sudo diskutil apfs addVolume disk1 APFSX Nix -mountpoint /nix

React.js test

Assignment

Your task is to create one-page application with list of devices and their details. Devices data are stored in 'devices.json' which should be loaded dynamically via http request.

The result should be uploaded to github. If you don't have a user yet, you might need to create one.

You should be able to fetch the device list directly from https://gist.githubusercontent.com/Tehnix/c9d53939b2ed600b321fed8e1898f3a7/raw/dfe7adaf6f73e320ae4ed42761d6b50cf25eb569/devices.json meaning you don't need to keep a server running.

Problem

If you update ICU on macOS, some packages are dynamically linked against a specific version, but the older version might dissapear. You'll see this with something like,

$ stack --stack-yaml=stack-8.0.2.yaml install --extra-lib-dirs=/usr/local/opt/icu4c/lib --extra-include-dirs=/usr/local/opt/icu4c/include
...
HaRe-0.8.4.1: copy/register
brittany-0.11.0.0: copy/register
Progress 18/20

	// Variables used by Scriptable.
	// These must be at the very top of the file. Do not edit.
	// icon-color: teal; icon-glyph: magic;
	const LINEAR_API_KEY = "lin_api_....";
	const WIDGET_SIZE = config.widgetFamily; // "small" \| "medium" \| "large"
	const VIEW_ID = "....-....-....-...-....."; // Your Linear view ID.
	const TEAM_ID = "LTI"; // Your Linear team ID.
	const DEFAULT_ASSIGNEE = "displayName"; // Your Linear display name.
	const DEFAULT_PROJECT = "....-....-....-...-....."; // The default project to create issues in.
	const DEFAULT_STATUS = "Backlog"; // The default status to create issues with.

	let
	bootPkgs = import <nixpkgs> { };
	ghcide-pkgs = import (builtins.fetchTarball
	"https://github.com/hercules-ci/ghcide-nix/tarball/master") { };

	# We use a patched fork of base-noprelude which is compatible with GHCJS.
	base-noprelude-src = bootPkgs.fetchFromGitHub {
	owner = "codetalkio";
	repo = "base-noprelude";
	rev = "00b9f86b788d5e3558846b292a6bf6b25816647b";

	error: while evaluating the attribute 'NIX_GHC' of the derivation 'ghc-shell-for-miso-spa-0.1.0.0' at /nix/store/9r1vhvri4ba913g4vyg5jqrhg6pb9amn-source/pkgs/development/haskell-modules/make-package-set.nix:308:9:
	while evaluating 'ghcWithPackages' at /nix/store/9r1vhvri4ba913g4vyg5jqrhg6pb9amn-source/pkgs/development/haskell-modules/make-package-set.nix:243:23, called from /nix/store/9r1vhvri4ba913g4vyg5jqrhg6pb9amn-source/pkgs/development/haskell
	-modules/make-package-set.nix:299:18:
	while evaluating 'withPackages' at /nix/store/9r1vhvri4ba913g4vyg5jqrhg6pb9amn-source/pkgs/development/haskell-modules/make-package-set.nix:116:18, called from /nix/store/9r1vhvri4ba913g4vyg5jqrhg6pb9amn-source/pkgs/development/haskell-mo
	dules/make-package-set.nix:243:35:
	while evaluating 'callPackageWith' at /nix/store/9r1vhvri4ba913g4vyg5jqrhg6pb9amn-source/lib/customisation.nix:108:35, called from /nix/store/9r1vhvri4ba913g4vyg5jqrhg6pb9amn-source/pkgs/development/haskell-modules/make-package-set.nix:11
	6:28:
	while evaluati

	let
	bootPkgs = import <nixpkgs> { };
	ghcide-pkgs = import (builtins.fetchTarball
	"https://github.com/hercules-ci/ghcide-nix/tarball/master") { };

	# We use a patched fork of base-noprelude which is compatible with GHCJS.
	base-noprelude-src = bootPkgs.fetchFromGitHub {
	owner = "codetalkio";
	repo = "base-noprelude";
	rev = "00b9f86b788d5e3558846b292a6bf6b25816647b";

	# Instruction + template repo: https://github.com/FedericoPonzi/rust-ci
	name: CI

	on:
	pull_request:
	push:
	branches:
	- master
	tags:
	- 'v..*'

	language: haskell
	dist: trusty

	cache:
	directories:
	- $HOME/.cabal/packages
	- $HOME/.cabal/store
	- $HOME/.stack
	- $TRAVIS_BUILD_DIR/.stack-work

	#!/usr/bin/env stack
	-- stack --resolver lts-12.16 script --package freer-simple --package lens
	{-# LANGUAGE TemplateHaskell #-}
	{-# LANGUAGE MultiParamTypeClasses #-}
	{-# LANGUAGE FlexibleInstances #-}
	{-# LANGUAGE FunctionalDependencies #-}
	{-# LANGUAGE FlexibleContexts #-}
	{-# LANGUAGE AllowAmbiguousTypes #-}
	module Test where