NadirZenith

The introduction to Reactive Programming you've been missing

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

Composer

the missing quick-start guide

We will assume we have a package/project called https://github.com/foo/bar

Most redistributable packages are hosted on a version control website such as Github or Bitbucket. Version control repositories often have a tagging system where we can define stable versions of our application. For example with git we can use the command:

git tag -a 1.0.0 -m 'First version.'

With this we have created version 1.0.0 of our application. This is a stable release which people can depend on. If we wanted to include "foo/bar" then we could create a composer.json and specify the tagged release we wanted:

Opening and closing an SSH tunnel in a shell script the smart way

I recently had the following problem:

From an unattended shell script (called by Jenkins), run a command-line tool that accesses the MySQL database on another host.
That tool doesn't know that the database is on another host, plus the MySQL port on that host is firewalled and not accessible from other machines.

We didn't want to open the MySQL port to the network, but it's possible to SSH from the Jenkins machine to the MySQL machine. So, basically you would do something like

ssh -L 3306:localhost:3306 remotehost

	<?php

	/**
	* BITWISE FLAGS for Custom PHP Objects
	*
	* @link http://php.net/manual/en/language.operators.bitwise.php#108679
	*
	* Sometimes I need a custom PHP Object that holds several boolean TRUE or FALSE values.
	* I could easily include a variable for each of them, but as always, code has a way to
	* get unweildy pretty fast. A more intelligent approach always seems to be the answer,

	KEYBINDINGS
	byobu keybindings can be user defined in /usr/share/byobu/keybindings/ (or within .screenrc if byobu-export was used). The common key bindings
	are:

	F2 - Create a new window

	F3 - Move to previous window

	F4 - Move to next window

	[alias]
	recent = "!git for-each-ref --sort=-committerdate refs/heads/ --format='%(committerdate:short) %(refname:short)' \| head -n 10"
	co = checkout
	cob = checkout -b
	coo = !git fetch && git checkout
	br = branch
	brd = branch -d
	brD = branch -D
	merged = branch --merged
	st = status

	<?php

	/**
	* GitHub webhook handler template.
	*
	* @see https://docs.github.com/webhooks/
	* @author Miloslav Hůla (https://github.com/milo)
	*/

	$hookSecret = 's.e.c.r.e.t'; # set NULL to disable check

	/**
	* The default capability required to use Meta Slider is 'edit_others_posts'.
	* You can change this to a different capability by pasting the code below into
	* your themes functions.php file.
	*
	* You can use the 'User Role Editor' plugin to add a custom capability to WordPress
	* specifically for Meta Slider users.
	*/
	function metaslider_change_required_role($capability) {
	return 'metaslider_use'; // this is the ID of a custom capability added using User Role Editor

	// this is the background code...

	// listen for our browerAction to be clicked
	chrome.browserAction.onClicked.addListener(function (tab) {
	// for the current tab, inject the "inject.js" file & execute it
	chrome.tabs.executeScript(tab.ib, {
	file: 'inject.js'
	});
	});

	# although StackOverflow has this answer http://stackoverflow.com/a/1128583
	# but that code is unreadable, thus I have this (also based on a SO anower: http://stackoverflow.com/a/1128721 )

	# get the name of the branch we are on
	_git_repo_name() {
	gittopdir=$(git rev-parse --git-dir 2> /dev/null)
	if [[ "foo$gittopdir" == "foo.git" ]]; then
	echo `basename $(pwd)`
	elif [[ "foo$gittopdir" != "foo" ]]; then
	echo `dirname $gittopdir \| xargs basename`