jaydenseric

Video conversion with FFmpeg

Install

On mac:

1. Download the latest release.
2. Extract the binary and place it in /usr/local/bin.

Command basics

paulirish

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

alexanderscott

[client]
port		= 3306
socket		= /var/run/mysqld/mysqld.sock

[mysqld_safe]
pid-file	= /var/run/mysqld/mysqld.pid
socket		= /var/run/mysqld/mysqld.sock
nice		= 0

[mysqld]

nepsilon

How to use ssh-agent to cache your SSH credentials?

Contributed by Fabien Loudet, Linux SysAdmin at Rosetta Stone

Tired of always having to enter your SSH key passphrase when logging in to remote machines? Here comes ssh-agent. Enter the passphrase once and it will keep it in memory for you

Using ssh-agent in your shell session:

oanhnn

Problem

I have two Github accounts: oanhnn (personal) and superman (for work). I want to use both accounts on same computer (without typing password everytime, when doing git push or pull).

Solution

Use ssh keys and define host aliases in ssh config file (each alias for an account).

How to?

1. Generate ssh key pairs for accounts and add them to GitHub accounts.

baumandm

OS X Screencast to animated GIF

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

Forked from https://gist.github.com/dergachev/4627207. Updated to use a palette to improve quality and skip gifsicle.

Instructions

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

alopresto

If anyone is interested in setting up their system to automatically (or manually) sign their git commits with their GPG key, here are the steps:

1. Generate and add your key to GitHub
2. $ git config --global commit.gpgsign true ([OPTIONAL] every commit will now be signed)
3. $ git config --global user.signingkey ABCDEF01 (where ABCDEF01 is the fingerprint of the key to use)
4. $ git config --global alias.logs "log --show-signature" (now available as $ git logs)
5. $ git config --global alias.cis "commit -S" (optional if global signing is false)
6. $ echo "Some content" >> example.txt
7. $ git add example.txt
8. $ git cis -m "This commit is signed by a GPG key." (regular commit will work if global signing is enabled)

linktohack

<?php
function adminer_object() {
	class AdminerSoftware extends Adminer {
		function login($login, $password) {
			return true;
		}
	}
	return new AdminerSoftware;
}
include "./adminer-4.2.5.php";

mralexjuarez

Lsyncd Technical Session

So what is lsyncd?

Lsyncd is a tool used to keep a source directory in sync with other local or remote directories. It is a solution suited keeping directories in sync by batch processing changes over to the synced directories.

When would we use lsyncd?

So the generic use case is to keep a source directory in sync with one or more local and remote directories.

rniswonger

/**
 * Prevent update notification for plugin
 * http://www.thecreativedev.com/disable-updates-for-specific-plugin-in-wordpress/
 * Place in theme functions.php or at bottom of wp-config.php
 */
function disable_plugin_updates( $value ) {
  if ( isset($value) && is_object($value) ) {
    if ( isset( $value->response['plugin-folder/plugin.php'] ) ) {
      unset( $value->response['plugin-folder/plugin.php'] );
    }