show-current-branch.php

<?php
/*
  Plugin Name: Show Current Branch
  Plugin URI: http://wp.tekapo.com/
  Description: Show the current git branch name in the tool bar.
  Author: JOTAKI Taisuke
  Version: 0.1.0
  Author URI: http://tekapo.com/
  Text Domain: show-current-branch
  Domain Path: /languages/

  License:
  Released under the GPL license
  http://www.gnu.org/copyleft/gpl.html

  Copyright 2013 (email : tekapo@gmail.com)

  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation; either version 2 of the License, or
  (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */

load_plugin_textdomain( Show_Template_File_Name::TEXT_DOMAIN, false, dirname( plugin_basename( __FILE__ ) ) . '/languages/' );

//http://stackoverflow.com/questions/7447472/how-could-i-display-the-current-git-branch-name-at-the-top-of-the-page-of-my-de

class Show_Branch_Name {

	const TEXT_DOMAIN = 'show-currnet-branch';

	function __construct() {
		add_action( "admin_bar_menu", array(&$this, "show_template_file_name_on_top"), 9999 );
		add_action( 'wp_enqueue_scripts', array(&$this, "add_current_template_stylesheet"), 9999 );
	}

	public function get_git_head_file( $param ) {
		echo implode( '/', array_slice( explode( '/', file_get_contents( '.git/HEAD' ) ), 2 ) );
	}

}

new Show_Template_File_Name();

class Show_Template_File_Name {

	const TEXT_DOMAIN = 'show-current-template';

	function __construct() {
		add_action( "admin_bar_menu", array(&$this, "show_template_file_name_on_top"), 9999 );
		add_action( 'wp_enqueue_scripts', array(&$this, "add_current_template_stylesheet"), 9999 );
	}

	public function show_template_file_name_on_top( $wp_admin_bar ) {

		if ( is_admin() or !is_super_admin() )
			return;

		global $template;

		$template_file_name		 = basename( $template );
		$template_relative_path	 = str_replace( ABSPATH . 'wp-content/', '', $template );

		$current_theme		 = wp_get_theme();
		$current_theme_name	 = $current_theme->Name;
		$parent_theme_name	 = '';

		if ( is_child_theme() ) {
			$child_theme_name	 = __( 'Theme name: ', self::TEXT_DOMAIN, 'show-current-template' )
					. $current_theme_name;
			$parent_theme_name	 = $current_theme->parent()->Name;
			$parent_theme_name	 = ' (' . $parent_theme_name . __( "'s child", self::TEXT_DOMAIN, 'show-current-template' ) . ")";
			$parent_or_child	 = $child_theme_name . $parent_theme_name;
		} else {
			$parent_or_child = __( 'Theme name: ', self::TEXT_DOMAIN, 'show-current-template' )
					. $current_theme_name . ' (' . __( 'NOT a child theme', self::TEXT_DOMAIN, 'show-current-template' ) . ')';
		}

		$included_files = get_included_files();

		sort( $included_files );
		$included_files_list = '';
		foreach ( $included_files as $filename ) {
			if ( strstr( $filename, 'themes' ) ) {
				$filepath = strstr( $filename, 'themes' );
				if ( $template_relative_path == $filepath ) {
					$included_files_list .= '';
				} else {
					$included_files_list .= '<li>' . "$filepath" . '</li>';
				}
			}
		}

		global $wp_admin_bar;
		$args = array(
			'id'	 => 'show_template_file_name_on_top',
			'title'	 => __( 'Template:', self::TEXT_DOMAIN, 'show-current-template' )
			. '<span class="show-template-name"> ' . $template_file_name . '</span>',
		);

		$wp_admin_bar->add_node( $args );

		$wp_admin_bar->add_menu( array(
			'parent' => 'show_template_file_name_on_top',
			'id'	 => 'template_relative_path',
			'title'	 => __( 'Template relative path:', self::TEXT_DOMAIN, 'show-current-template' )
			. '<span class="show-template-name"> ' . $template_relative_path . '</span>',
		) );

		$wp_admin_bar->add_menu( array(
			'parent' => 'show_template_file_name_on_top',
			'id'	 => 'is_child_theme',
			'title'	 => $parent_or_child,
		) );

		$wp_admin_bar->add_menu( array(
			'parent' => 'show_template_file_name_on_top',
			'id'	 => 'included_files_path',
			'title'	 => __( 'Also, below template files are included:', self::TEXT_DOMAIN
					, 'show-current-template' ) . '<br /><ul id="included-files-list">'
			. $included_files_list . '</ul>',
		) );
	}

	public function add_current_template_stylesheet() {

		if ( is_admin() or !is_super_admin() ) {
			return;
		}

		$wp_version = get_bloginfo( 'version' );

		if ( $wp_version >= '3.8' ) {
			wp_register_style( 'current-template-style', plugins_url( 'style.css', __FILE__ ) );
			wp_enqueue_style( 'current-template-style' );
		} else {
			wp_register_style( 'current-template-style', plugins_url( 'style-old.css', __FILE__ ) );
			wp_enqueue_style( 'current-template-style' );
		}
	}

}