Samuel Laferriere samlaf

Zero-downtime: Multiple releases of the code that understand different database schemas can simultaneously write to the database.
Triggers: Triggers are used to keep old and new schemas in sync while the application undergoes a rolling upgrade.
Expand-migrate-contract: The migration is performed in three phases. The expand phase creates new columns (and possibly tables), and triggers. The migrate phase moves data from the old column to the new column. The contract phase removes old columns (and possible tables), and triggers.

Motivation

tl;dr I want to use Rust to program robots. Help me find the best core libraries to build on.

Robotic systems require high performance and reliability, but also have enormous complexity in terms of algorithms employed, number of subsystems, embedded hardware control, and other metrics. Development is mostly split between C++ for performance and safety critical components, and MatLab or Python for quick research or task iteration.

#!/usr/bin/env bash

# Assuming OS X Yosemite 10.10.4

# Install XCode and command line tools
# See https://itunes.apple.com/us/app/xcode/id497799835?mt=12#
# See https://developer.apple.com/library/mac/documentation/Darwin/Reference/ManPages/man1/xcode-select.1.html
xcode-select --install

Exporting (iCloud) Keychain and Safari credentials to a CSV file

Update (October 2021)

Exporting password + one-time code data from iCloud Keychain is now officially supported in macOS Monterey and Safari 15 (for Monterey, Big Sur, and Catalina). You can access it in the Password Manager’s “gear” icon (System Preferences > Passwords on Monterey, and Safari > Passwords everywhere else), or via the File > Export > Passwords... menu item). You shouldn't need to hack up your own exporter anymore.

Original, Obsolete Content (2014)

After my dad died, I wanted to be able to have access any of his online accounts going forward. My dad was a Safari user and used iCloud Keychain to sync his credentials across his devices. I don’t want to have to keep an OS X user account around just to access his accounts, so I wanted to export his credentials to a portable file.

	# This file is: ~/.ssh/config

	# You may have other (non-CodeCommit) SSH credentials stored in this
	# config file – in addition to the CodeCommit settings shown below.

	# NOTE: Make sure to run [ chmod 600 ~/.ssh/config ] after creating this file!

	# Credentials for Account1
	Host awscc-account1 # 'awscc-account1' is a name you pick
	Hostname git-codecommit.us-east-1.amazonaws.com # This points to CodeCommit in the 'US East' region