aljce

# Using a specific checkout of nixpkgs makes it easy to debug as you know exactly what the deps are.
# This being said in production you should pass the global nixpkgs to this file.
let nixpkgs-src = builtins.fetchTarball {
      url = "https://github.com/NixOS/nixpkgs/archive/56d94c8c69f8cac518027d191e2f8de678b56088.tar.gz";
      sha256 = "1c812ssgmnmh97sarmp8jcykk0g57m8rsbfjg9ql9996ig6crsmi";
    };
in
{ pkgs ? (import nixpkgs-src {}) }:
with pkgs;
with stdenv.lib;

abiodun0

module RedBlackTree
  (
    Tree,
    empty,
    member,
    insert)
where

data Color = R | B deriving Show

tazjin

Nix builder for Kubernetes

Table of Contents

• Nix builder for Kubernetes
  • Overview
  • Why?
• How?

arianvp

I think Gabriel's blogpost http://www.haskellforall.com/2018/08/nixos-in-production.html he explains how to work around nixos-rebuild's inflexibilities. However, I think everything that is being suggested is actually possible in nixos-rebuild already

They blog is still a good exercise to understanding what nixos-rebuild does behind the scenes though.

Deploy to a target machine, from a build machine, with pinned nixpkgs, and a specific nixos config:

nixos-rebuild switch \
 --build-host=build@build.service.consul \

mewmew

// ### [ Lexical part ] ########################################################

_ascii_letter_upper
	: 'A' - 'Z'
;

_ascii_letter_lower
	: 'a' - 'z'
;

HiImJulien

Swift Meets C/C++

This gist is a simple example on how to call a function written in swift from C/C++, without taking the detour via Objective-C/C++.

---

In this example we're going to invoke a function called say_hello, which, as the name already suggests, prints "Hello, World!" to the terminal.

ezalejski

keybase pgp pull <keybase.io user>
gpg --edit-key <keybase.io user>
  > lsign
  > save
git-crypt add-gpg-user <keybase.io user>

taktoa

I started writing this polemic to answer your question, but I ended up touching on most of my gripes with Haskell in general, not just in a corporate context.

GHC

GHC is a modern compiler with an amazing RTS and tons of features, but I have some issues with it.

Monolithic and Hard to Contribute To

mstksg

title	The Fools Who Dream
subtitle	(Computer Science Edition)
author	Justin Hurwitz (Lyrics Justin Le)

[Charles Babbage]

His difference engine / did multiplication
And sometimes addition by three

edsko

{-# LANGUAGE FlexibleContexts      #-}
{-# LANGUAGE FlexibleInstances     #-}
{-# LANGUAGE DataKinds             #-}
{-# LANGUAGE EmptyCase             #-}
{-# LANGUAGE GADTs                 #-}
{-# LANGUAGE KindSignatures        #-}
{-# LANGUAGE MultiParamTypeClasses #-}
{-# LANGUAGE PolyKinds             #-}
{-# LANGUAGE RankNTypes            #-}
{-# LANGUAGE ScopedTypeVariables   #-}