create links in the WP admin bar for development

rkv-admin-links.php

<?php

/**
 * set up some quick links for the admin bar
 *
 * @param  WP_Admin_Bar $wp_admin_bar [description]
 * @return [type]                     [description]
 */
function rkv_admin_bar_static( WP_Admin_Bar $wp_admin_bar ) {

	// bail if current user doesnt have cap
	if ( ! current_user_can( 'manage_options' ) ) {
		return;
	}

	// add a parent item
	$wp_admin_bar->add_node(
		array(
			'id'    => 'rkv-dev-links',
			'title' => 'RKV Dev Links',
		)
	);

	// add GitHub issues
	$wp_admin_bar->add_node(
		array(
			'id'        => 'github-issues',
			'title'     => 'GitHub Issues',
			'href'      => 'https://github.com/project-name/issues',
			'position'  => 0,
			'parent'    => 'rkv-dev-links',
			'meta'      => array(
				'title' => 'GitHub Issues',
				'target' => '_blank'
			)
		)
	);

	// add CMB2 wiki
	$wp_admin_bar->add_node(
		array(
			'id'        => 'cmb2-wiki-site',
			'title'     => 'CMB2 Wiki',
			'href'      => 'https://github.com/WebDevStudios/CMB2/wiki/',
			'parent'    => 'rkv-dev-links',
			'position'  => 0,
			'meta'      => array(
				'title' => 'CMB2 Wiki',
				'target' => '_blank'
			)
		)
	);

	// add live staging site
	$wp_admin_bar->add_node(
		array(
			'id'        => 'staging-site',
			'title'     => 'Staging Site',
			'href'      => 'http://devsite-url.com/',
			'parent'    => 'rkv-dev-links',
			'position'  => 0,
			'meta'      => array(
				'title' => 'Staging Site',
				'target' => '_blank'
			)
		)
	);

}

add_action( 'admin_bar_menu', 'rkv_admin_bar_static', 9999 );