paul-ridgway

#!/bin/sh

#  Read-only Root-FS for Raspian using overlayfs
#  Version 1.1:
#  Changed to use /proc/mounts rathern than /etc/fstab for deriving the root filesystem.
#
#  Version 1:
#  Created 2017 by Pascal Suter @ DALCO AG, Switzerland to work on Raspian as custom init script
#  (raspbian does not use an initramfs on boot)
#

paul-ridgway

pi@pi3-1:~ $ df -h
Filesystem                 Size  Used Avail Use% Mounted on
192.168.1.50:/nfs/client1  205G   68G  127G  35% /mnt
devtmpfs                   460M     0  460M   0% /dev
root-rw                    464M  103M  362M  23% /rw
192.168.1.50:/nfs/client1  205G   68G  127G  35% /ro
overlayfs-root             464M  103M  362M  23% /
tmpfs                      464M     0  464M   0% /dev/shm
tmpfs                      464M   12M  452M   3% /run
tmpfs                      5.0M  4.0K  5.0M   1% /run/lock

paul-ridgway

default-lease-time 86400;  
max-lease-time 86400;

authoritative;

log-facility local7;

subnet 192.168.1.0 netmask 255.255.255.0 {  
  range 192.168.1.100 192.168.1.200;

paul-ridgway

default-lease-time 86400;
max-lease-time 86400;

authoritative;

log-facility local7;

subnet 192.168.1.0 netmask 255.255.255.0 {
  range 192.168.1.100 192.168.1.200;

paul-ridgway

service tftp
{
protocol        = udp
port            = 69
socket_type     = dgram
wait            = yes
user            = nobody
server          = /usr/sbin/in.tftpd
server_args     = /tftpboot
disable         = no

paul-ridgway

#!/usr/bin/env ruby

require 'hidapi'

bus_number = 1
device_address = 4
interface = 3

SOLID_GRN      = [0x08, 0x00, 0x01, 0x06, 0x32, 0x02, 0x01, 0xbb]
PRESS_FADE_GRN = [0x08, 0x00, 0x04, 0x0a, 0x32, 0x02, 0x01, 0xb4] 

paul-ridgway

Mongoid.default_client.collections.each(&:drop)

paul-ridgway

rsync -aAXv --progress --exclude={"/dev/*","/proc/*","/sys/*","/tmp/*","/usr/tmp/*","/run/*","/mnt/*","/media/*","/var/cache/*","/","/lost+found","/backup"} /* /backup/

paul-ridgway

name: Build
on: [push, pull_request]
jobs:
  build:
    strategy:
      matrix:
        core_a: ["STM32"]
        core_b: ["stm32"]
        board: ["Nucleo_144"]
        opts: ["pnum=NUCLEO_F767ZI,upload_method=MassStorage,xserial=generic,usb=none,xusb=FS,opt=osstd,rtlib=nano"]

paul-ridgway

function strokesRequired(picture) {
  var strokes = 0;
  while (true) {
    // Find the next truthy cell and extract x and y
    const next = picture.flatMap((row, x) => row.flatMap((char, y) => (char && { char, x, y }))).filter(r => r)[0];
    if (!next) { // None left means the picture is filled
      break;
    }
    const remove = [[next.x, next.y]]; // We will remove the current cell after
    eliminateNeighbours(picture, [], remove, next.char, next.x, next.y);