Erwan d'Orgeville edorgeville

Setting and accessing environment variables in node-red

Setting

echo "UUID=12345" > ~/env
sudo nano /lib/systemd/system/nodered.service
Add EnvironmentFile=/home/pi/env
sudo systemctl daemon-reload
sudo systemctl restart nodered

Accessing

Install Golang 1.9:

wget https://storage.googleapis.com/golang/go1.9.linux-armv6l.tar.gz
sudo tar -C /usr/local -xzf go1.9.linux-armv6l.tar.gz
export PATH=$PATH:/usr/local/go/bin # put into ~/.profile

If already installed old golang with apt-get:

Downloading Shared Files on Google Drive Using Curl

When the shared files on Google Drive is downloaded, it is necessary to change the download method by the file size. The boundary of file size when the method is changed is about 40MB.

File size < 40MB

CURL

filename="### filename ###"
fileid="### file ID ###"
curl -L -o ${filename} "https://drive.google.com/uc?export=download&amp;id=${fileid}"

Update package.json, set version to a prerelease version, e.g. 2.0.0-rc1, 3.1.5-rc4, ...
Run npm pack to create package
Run npm publish <package>.tgz --tag next to publish the package under the next tag
Run npm install --save package@next to install prerelease package

Google Music All Access Family Plan for G-Suite / GMail Vanity Domains

Synopsis

I had wondered about this some weeks ago before finally trying it out today. I'm surprised nobody else had tried already. I was successful enough to be satisfied for my own uses. YMMV.

Result is I have a new Play Music account with Family Sharing which I can share with my G-Suite users, with all my playlists* moved over, and without anyone needing to maintain a separate email account.

This whole process took me about an hour, including moving across 15 playlists, but not including MX record propagation.

How to create small, unique tokens in Ruby

That is is basically a "fork" of blog article i'm constantly returning to. It seems that the blog is down:

My choice: Dave Bass’s rand().to_s() trick

Dave Bass proposed this which I picked up for my implementation (here for an 8-chars token):

Macbook Arch Guide

Installation
General Setup
System Time
Display
Keyboard
Touchpad
Sound
Bluetooth

	Notes to make IR shield (made by LinkSprite) work in Raspberry Pi 3 (bought from Amazon [1]).
	The vendor has some documentation [2] but that is not complete and sufficient for Raspbian Stretch.
	Following are the changes that I made to make it work.

	$ sudo apt-get update
	$ sudo apt-get install lirc

	# Add the following lines to /etc/modules file
	lirc_dev
	lirc_rpi gpio_in_pin=18 gpio_out_pin=17

	//Node gameloop

	var NanoTimer = require('nanotimer');

	var count = 0;

	var source = msg.payload.source;
	var target = msg.payload.target;

	var interval = 16;

	#!/bin/bash
	# Use as follows :
	# ./setup_carrierwave.sh local
	# ./setup_carrierwave.sh remote project_name [production/staging]

	set -e

	# Parameters
	MODE=$1
	PROJECT_NAME=$2