Aaron Taylor kujenga

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.

It is easy to get service accounts working with App Engine's app_devserver.py - once you know how.

On the way there, you might have pulled out all your hair following one documentation dead end after another, trying to piece together the right information.

Here are the steps you need to take, in exact order, to get this working. Once you follow these steps, you'll be able to use service accounts in local development, so that you can interact with Google APIs (e.g.: Spreadsheet, Calendar) in a way that is consistent with the deployment environment on App Engine.

In order to follow the instructions, you'll be better off using the latest UI for Google Cloud projects. Older interfaces (such as the dedicated App Engine dashboard) have things in different places, under different names, etc. It is a world of pain there.

Also note that I've tested this on several 1.9.x releases of App Engine; I can't confirm the behaviour of earlier releases.

#Heroku, Ruby on Rails and PhantomJS

In this post, I’m going to show you how to modify an existing Ruby on Rails app running on Heroku’s Cedar stack to use PhantomJS for screen scraping. If you’ve never heard of PhantomJS, it’s a command-line WebKit-based browser (that supports JavaScript, cookies, etc.).

Let’s get started. This is a high-level overview of the required steps:

Modify your app to use multiple Heroku buildpacks.
Extend your app to use both the Ruby as well as the PhantomJS buildpacks.
Confirm that everything worked.

Two way iframe communication

The main difference between the two pages is the method of sending messages. Recieving messages is the same in both.

Parent

Send messages to iframe using iframeEl.contentWindow.postMessage Recieve messages using window.addEventListener('message')

iframe

How to run Sentry in a subdirectory with nginx

Scenario: you already have an app running at http://your.server.com/ and you want to run Sentry at http://your.server.com/sentry/

I spend a few hours banging my head against this, and finally got it to work. There may be a better way, but I couldn't find it.

Warning: hacky.

	/**
	* Fancy ID generator that creates 20-character string identifiers with the following properties:
	*
	* 1. They're based on timestamp so that they sort after any existing ids.
	* 2. They contain 72-bits of random data after the timestamp so that IDs won't collide with other clients' IDs.
	* 3. They sort lexicographically (so the timestamp is converted to characters that will sort properly).
	* 4. They're monotonically increasing. Even if you generate more than one in the same timestamp, the
	* latter ones will sort after the former ones. We do this by using the previous random bits
	* but "incrementing" them by 1 (only in the case of a timestamp collision).
	*/

	# Add the following 'help' target to your Makefile
	# And add help text after each target name starting with '\#\#'

	help: ## Show this help.
	@fgrep -h "##" $(MAKEFILE_LIST) \| fgrep -v fgrep \| sed -e 's/\\$$//' \| sed -e 's/##//'

	# Everything below is an example

	target00: ## This message will show up when typing 'make help'
	@echo does nothing

	#!/bin/bash
	# A simple script to backup an organization's GitHub repositories.

	#-------------------------------------------------------------------------------
	# NOTES:
	#-------------------------------------------------------------------------------
	# * Under the heading "CONFIG" below you'll find a number of configuration
	# parameters that must be personalized for your GitHub account and org.
	# Replace the `<CHANGE-ME>` strings with the value described in the comments
	# (or overwrite those values at run-time by providing environment variables).

	#!/bin/bash

	if [ "$1" = "-h" -o "$1" = "--help" -o -z "$1" ]; then cat <<EOF
	appify v3.0.1 for Mac OS X - http://mths.be/appify
	Creates the simplest possible Mac app from a shell script.

	Appify takes a shell script as its first argument:

	`basename "$0"` my-script.sh