Kirk Strobeck kirkstrobeck

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

What forces layout / reflow

All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.

Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.

Element APIs

Getting box metrics

elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent

What I Wish I'd Known About Equity Before Joining A Unicorn

Disclaimer: This piece is written anonymously. The names of a few particular companies are mentioned, but as common examples only.

This is a short write-up on things that I wish I'd known and considered before joining a private company (aka startup, aka unicorn in some cases). I'm not trying to make the case that you should never join a private company, but the power imbalance between founder and employee is extreme, and that potential candidates would

Revert / Undo a Gist Commit

It was not exactly obvious. Here's how to revert a Gist commit!

Checkout the gist like a normal git repo:

# replace the Gist ID with your own
git clone [email protected]:cc13e0fcf2c348cc126f918e4a3917eb.git

Treat it like a normal repo. Edit, force push, etc.

Methods of Signing Git Commits on MacOS

Last updated March 13, 2024

This Gist explains how to sign commits using gpg in a step-by-step fashion. Previously, krypt.co was heavily mentioned, but I've only recently learned they were acquired by Akamai and no longer update their previous free products. Those mentions have been removed.

Additionally, 1Password now supports signing Git commits with SSH keys and makes it pretty easy-plus you can easily configure Git Tower to use it for both signing and ssh.

For using a GUI-based GIT tool such as Tower or Github Desktop, follow the steps here for signing your commits with GPG.

	<?xml version="1.0" encoding="UTF-8"?>
	<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">

	<!--
	Name: Widon't XSLT
	Version: 1.0
	Author: Oleg Kurapov
	URL: http://www.2sheds.ru/blog/2007/06/widont-in-xslt-dont-be-a-widow-maker/

	Description:

	require 'gollum/frontend/app'
	require 'digest/sha1'

	class App < Precious::App
	User = Struct.new(:name, :email, :password_hash, :can_write)

	before { authenticate! }
	before /^\/(edit\|create\|delete\|livepreview\|revert)/ do authorize_write! ; end

	helpers do

	#!/bin/zsh

	# For Macs, get gource with HomeBrew:
	# brew install gource
	# brew install ffmpeg

	if (( !($# == 3) ))
	then
	echo "Usage:"
	echo $0 "<gravatar directory> <output file base name> <seconds per day>"