jimmycuadra

Git Submodules basic explanation

Why submodules?

In Git you can add a submodule to a repository. This is basically a repository embedded in your main repository. This can be very useful. A couple of usecases of submodules:

Separate big codebases into multiple repositories.

CoffeeScript 1.7 is shaping up to be a pretty kick-ass release with significant improvements. Here are the ones I'm most excited about, in order of my own excitement.

Parentheses-free chaining

jashkenas/coffeescript#3263

Years of being wished for, finally granted!

@holman got a request about our deployment system, heaven

I know it's not a high priority, but has there been any activity on open-sourcing the core Heaven gem?

There is. I've been working on extracting the non-GitHub specific parts into two gems. This first is a CLI portion called hades. The second is an HTTP API portion called heaven.

When you open source something previously used as in internal tool like Heaven, Hubot, Boxen, etc., how do you manage and hook in the parts that need to stay internal?

Normally I focus around four questions:

https://github.com/[yourname]

Ambition

[Describe ambitions: type of work, attributes of team, what you want to learn & teach]

Experience

[in reverse chronological order, list at most 5 positions or 10 years back, whichever is fewer]

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:

	// This systemd runs iptables-restore on boot:
	[Unit]
	Description=Packet Filtering Framework
	DefaultDependencies=no
	After=systemd-sysctl.service
	Before=sysinit.target

	[Service]
	Type=oneshot
	ExecStart=/usr/sbin/iptables-restore /opt/docker/scripts/iptables/iptables.rules

	#!/bin/bash

	# References
	# http://www.computerhope.com/unix/nc.htm#03
	# https://github.com/daniloegea/netcat
	# http://unix.stackexchange.com/questions/26715/how-can-i-communicate-with-a-unix-domain-socket-via-the-shell-on-debian-squeeze
	# http://unix.stackexchange.com/questions/33924/write-inside-a-socket-open-by-another-process-in-linux/33982#33982
	# http://www.linuxjournal.com/content/more-using-bashs-built-devtcp-file-tcpip
	# http://www.dest-unreach.org/socat/
	# http://stuff.mit.edu/afs/sipb/machine/penguin-lust/src/socat-1.7.1.2/EXAMPLES

	# docker build -t="rails" .

	FROM ubuntu:12.04

	RUN apt-get update

	## MYSQL
	RUN apt-get install -y -q mysql-client libmysqlclient-dev

	## RUBY

	# A simple Makefile alternative to using Grunt for your static asset compilation
	#
	## Usage
	#
	# $ npm install
	#
	# And then you can run various commands:
	#
	# $ make # compile files that need compiling
	# $ make clean all # remove target files and recompile from scratch

	# Installation
	# ============

	# Installation of Ubuntu Server 13.04 “Raring Ringtail” is automated by
	# 'preseeding' configuration options with the values expected for vagrant. The
	# `ubuntu-server/raring64/preseed.cfg` file defines these options.

	# Clock and Timezone
	# ------------------