Michael Gira michaelgira23

Stuff I wish I'd known sooner about service workers

I recently had several days of extremely frustrating experiences with service workers. Here are a few things I've since learned which would have made my life much easier but which isn't particularly obvious from most of the blog posts and videos I've seen.

I'll add to this list over time – suggested additions welcome in the comments or via twitter.com/rich_harris.

Use Canary for development instead of Chrome stable

~~Chrome 51 has some pretty wild behaviour related to console.log in service workers. Canary doesn't, and it has a load of really good service worker related stuff in devtools.~~

[LINUX] Factorio Headless Server Guide

So, with credit to the Factorio wiki and cbednarski's helpful gist, I managed to eventually setup a Factorio headless server. Although, I thought the process could be nailed down/simplified to be a bit more 'tutorialised' and also to document how I got it all working for my future records.

The specific distro/version I'm using for this guide being Ubuntu Server 16.04.1 LTS. Although, that shouldn't matter, as long as your distro supports systemd (just for this guide, not a Factorio headless requirement, although most distros use it as standard now). The version of Factorio I shall be using is 0.14.20, although should work for any version of Factorio 0.14.12 and higher.

Just a note to newcomers: If there are any issues with the installation steps, people in the comments are doing a good job

Kinesis Freestyle (Terrible key switches. Mushy and un-lovable)
Kinesis Freestyle Edge (Traditional layout with too many keys, mech switches, proably too big to be tented easily/properly)
Matias Ergo Pro (Looks pretty great. Have not tried.)
ErgoDox Kit (Currently, my everyday keyboard. Can buy pre-assembled on eBay.)
ErgoDox EZ (Prolly the best option for most people.)

S3 Static Sites

⚠ This post is fairly old. I don't keep it up to date. Be sure to see comments where some people have posted updates

What this will cover

Host a static website at S3
Redirect www.website.com to website.com
Website can be an SPA (requiring all requests to return index.html)
Free AWS SSL certs
Deployment with CDN invalidation

	# --------------------------------
	# macOS temporary files
	# --------------------------------
	.DS_Store
	*.lock
	*.swp

	# --------------------------------
	# Xcode
	# --------------------------------

	# Create your superuser
	$ mongo
	> use admin
	> db.createUser({user:"someadmin",pwd:"secret", roles:[{role:"root",db:"admin"}]})
	> exit

	# Alias for convenience (optional and at your own risk)
	$ echo 'alias mongo="mongo --port 27017 -u someadmin -p secret --authenticationDatabase admin"' >> ~/.bash_profile
	$ source ~/.bash_profile

	/**
	* Retrieves all the rows in the active spreadsheet that contain data and logs the
	* values for each row.
	* For more information on using the Spreadsheet API, see
	* https://developers.google.com/apps-script/service_spreadsheet
	*/
	function readRows() {
	var sheet = SpreadsheetApp.getActiveSheet();
	var rows = sheet.getDataRange();
	var numRows = rows.getNumRows();

	const string = process.argv.slice(2).join(' ');
	let output = '';

	string.split('').forEach((value, index) => {
	if (index !== 0) {
	output += ' + ';
	}
	output += `String.fromCharCode(${value.charCodeAt(0)})`
	});

	#!/bin/bash

	echo ""
	echo "----------"
	echo "This bash script recursively goes through every PNG file in a given folder"
	echo "and removes its alpha channel. This is useful for preparing PNG files for"
	echo "uploading to Apple's iOS App Store."
	echo ""
	echo "You'll know you might need to use this script if you see this error coming"
	echo "from Apple when you try to upload the images:"