William Villeneuve ciiqr

How to add an image to a gist

Create a gist if you haven't already.

Clone your gist:

# make sure to replace `<hash>` with your gist's hash
git clone https://gist.github.com/<hash>.git # with https
git clone git@gist.github.com:<hash>.git     # or with ssh

Alternative naming schemes for AWS regions

Incorporates changes by 0mnius.

Purpose

The intent is to define terse, standards-supported names for AWS regions.

Legend

Thoughts on Swift 2 Errors

When Swift was first announced, I was gratified to see that one of the (few) philosophies that it shared with Objective-C was that exceptions should not be used for control flow, only for highlighting fatal programming errors at development time.

So it came as a surprise to me when Swift 2 brought (What appeared to be) traditional exception handling to the language.

Similarly surprised were the functional Swift programmers, who had put their faith in the Haskell-style approach to error handling, where every function returns an enum (or monad, if you like) containing either a valid result or an error. This seemed like a natural fit for Swift, so why did Apple instead opt for a solution originally designed for clumsy imperative languages?

I'm going to cover three things in this post:

From This other answer on the same thread

Based on Chris Johnsen's answer:

I added this line to the [alias] section of my git config file (~/.gitconfig):

squash = "!f(){ git reset --soft HEAD~${1} && git commit --edit -m\"$(git log --format=%B --reverse HEAD..HEAD@{1})\"; };f"

	# Generate a BaseSystem.dmg with 10.13 Install Packages
	hdiutil attach /Applications/Install\ macOS\ 10.13\ Beta.app/Contents/SharedSupport/InstallESD.dmg -noverify -mountpoint /Volumes/highsierra
	hdiutil create -o /tmp/HighSierraBase.cdr -size 7316m -layout SPUD -fs HFS+J
	hdiutil attach /tmp/HighSierraBase.cdr.dmg -noverify -mountpoint /Volumes/install_build
	asr restore -source /Applications/Install\ macOS\ 10.13\ Beta.app/Contents/SharedSupport/BaseSystem.dmg -target /Volumes/install_build -noprompt -noverify -erase
	cp -R /Volumes/highsierra/Packages /Volumes/OS\ X\ Base\ System/System/Installation
	hdiutil detach /Volumes/OS\ X\ Base\ System/
	hdiutil detach /Volumes/highsierra/
	mv /tmp/HighSierraBase.cdr.dmg /tmp/BaseSystem.dmg

	#!/bin/bash

	echo "Getting list of Availability Zones"
	all_regions=$(aws ec2 describe-regions --output text --query 'Regions[*].[RegionName]' \| sort)
	all_az=()

	while read -r region; do
	az_per_region=$(aws ec2 describe-availability-zones --region $region --query 'AvailabilityZones[*].[ZoneName]' --output text \| sort)

	while read -r az; do

	#!/usr/bin/env python3

	# by dotfloat
	# complaints go to dotfloat at gmail dot com

	# Running:
	# You need to have 'python3' and 'python3-gi' installed.
	#
	# On Debian/Ubuntu and derivatives, you have to run this:
	# $ sudo apt-get install python3 python3-gi

	/**
	* Advanced Window Snap
	* Snaps the Active Window to one of nine different window positions.
	*
	* @author Andrew Moore <andrew+github@awmoore.com>
	* @version 1.0
	*/

	/**
	* SnapActiveWindow resizes and moves (snaps) the active window to a given position.

	#!/bin/bash
	# Bonjour name ending in .local
	scutil --set LocalHostName "My-iMac"
	# Friendly name shown in System Preferences > Sharing
	scutil --set ComputerName "My-iMac"
	# The name recognized by the hostname command
	scutil --set HostName "My-iMac"
	# Save the computer's serial number in a variable so it can be used in the next command.
	serialNum=$(ioreg -l \| awk '/IOPlatformSerialNumber/ { split($0, line, "\""); printf("%s\n", line[4]); }')
	# Set the NetBIOS name as the serial number

	apt-get clean autoclean
	apt-get autoremove --yes
	rm -rf /var/lib/{apt,dpkg,cache,log}/