thefloweringash

{ config, lib, pkgs, ... }:

# Puppet style imperative config for setting sshd settings
let
  cfg = config.services.openssh;

  boolToStr = x: if x then "yes" else "no";

  # User config imported from nixpkgs
  userOptions = with lib; {

thefloweringash

{ pkgs ? import <nixpkgs> {}
, old ? "postgresql_9_6"
, new ? "postgresql_12"
}:

let
  oldPkg = pkgs."${old}";
  newPkg = pkgs."${new}";
in

thefloweringash

# "Comprehensive" set of tests that nothing is critically broken by the m1
# branch.
#
# The claim is that:
#   x86_64-darwin bootstrap tools can be recreated natively
#   aarch64-darwin bootstrap tools can be cross compiled by x86_64-darwin
#
# This test suite is probably best run on an aarch64-darwin computer with
# x86_64-darwin remote builders. If run with rosetta, there's a chance that
# platform mismatches will be unnoticed.

thefloweringash

# frozen_string_literal: true

source "https://rubygems.org"

gem "thor"

thefloweringash

Making armv7l in the cloud

Boot dezgeg’s image with qemu on something fancy:

truncate -s 200g sd-image-armv7l-linux.img

qemu-system-aarch64 -m 120g -smp 32 -enable-kvm -M virt -cpu host,aarch64=off -kernel kernel -initrd initrd  -drive if=none,file=sd-image-armv7l-linux.img,format=raw,id=hd0,index=0 -device virtio-blk-device,drive=hd0 -netdev user,id=mynet,hostfwd=tcp::5555-:22 -device virtio-net-device,netdev=mynet -nographic -no-reboot -machine gic-version=3 -append 'systemConfig=/nix/store/s8zghld9hj07vh4w2dvgi9v3q8p6h7ka-nixos-system-nixos-19.03.git.ca2ba44cab4 init=/nix/store/s8zghld9hj07vh4w2dvgi9v3q8p6h7ka-nixos-system-nixos-19.03.git.ca2ba44cab4/init loglevel=7 console=ttyS0,115200n8 console=ttymxc0,115200n8 console=ttyAMA0,115200n8 console=ttyO0,115200n8 console=ttySAC2,115200n8 console=tty0'

Use kpartx to bring up the kernel/initrd and read the extlinux options

thefloweringash

starting VDE switch for network 2
starting VDE switch for network 1
running the VM test script
starting all VMs
tracker: starting vm
tracker# Formatting '/build/vm-state-tracker/tracker.qcow2', fmt=qcow2 size=536870912 cluster_size=65536 lazy_refcounts=off refcount_bits=16
tracker: QEMU running (pid 598)
router: starting vm
router# Formatting '/build/vm-state-router/router.qcow2', fmt=qcow2 size=536870912 cluster_size=65536 lazy_refcounts=off refcount_bits=16
router: QEMU running (pid 610)

thefloweringash

#!/usr/bin/env nix-shell
#!nix-shell --pure -p dropbear -p cpio -p gzip -i bash

set -e
set -o pipefail

key_location=/etc/nixos/dropbear_ecda_host_key
target_path=/etc/dropbear/dropbear_ecdsa_host_key
initrd_dest=/boot/secrets_initramfs.gz # must match nix config

thefloweringash

{
  boot.kernelPatches =
    let
      alarmRev = "2026bde";
      alarmPatch = { name, sha256 }: {
        inherit name;
        patch = pkgs.fetchpatch {
          url = "https://raw.githubusercontent.com/archlinuxarm/PKGBUILDs/${alarmRev}/core/linux-aarch64/${name}";
          inherit sha256;
        };

thefloweringash

{ stdenv, fetchurl, makeWrapper, perl, coreutils, rsync, bzip2, gzip, findutils,
  perlPackages
}:

stdenv.mkDerivation {
  name = "dirvish";

  src = fetchurl {
    url = "http://dirvish.org/dirvish-1.2.1.tgz";
    sha256 = "1kbxa1irszp2zw8hd5qzqnrrzb4vxfivs1vn64yxnj0lak1jjzvb";

thefloweringash

$ nix run nixpkgs.rubocop
error: attribute 'nixpkgs' in selection path 'nixpkgs.rubocop' not found

$ nix run -f '<nixpkgs>' rubocop
tourou:~ lorne$ which rubocop
/run/current-system/sw/bin/rubocop
tourou:~ lorne$ exit

$ nix run -f '<nixpkgs>' rubocop -c which rubocop
/nix/store/j7my41m8s9irhyczlscy6yd5lcgsclck-rubocop-0.59.1/bin/rubocop