WordPressのテーマをカスタマイズ（twentyfifteen)

前提

• WordPressは/var/www/html/wordpressにinstall

設定

styleのoverride

• 子テーマを作成する。
• style.cssを親テーマから子テーマへコピー

$ cd /var/www/html/wordpress/wp-content/themes
$ mkdir twentyfifteen-child
$ cp twentyfifteen/style.css twentyfifteen-child/
$ emacs twentyfifteen-child/style.css

• style.cssをoverrideする。（ここでは@includeで継承のみ）

twentyfifteen-child/style.css

/*                                                                                                                      
Theme Name: Twenty Fifteen Child                                                                                        
Template: twentyfifteen                                                                                                 
Theme URI: https://wordpress.org/themes/twentyfifteen                                                                   
Author: the WordPress team                                                                                              
Author URI: https://wordpress.org/                                                                                      
Description: Our 2015 default theme is clean, blog-focused, and designed for clarity. Twenty Fifteen's simple, straight\
forward typography is readable on a wide variety of screen sizes, and suitable for multiple languages. We designed it u\
sing a mobile-first approach, meaning your content takes center-stage, regardless of whether your visitors arrive by sm\
artphone, tablet, laptop, or desktop computer.                                                                          
Version: 1.0                                                                                                            
License: GNU General Public License v2 or later                                                                         
License URI: http://www.gnu.org/licenses/gpl-2.0.html                                                                   
Tags: black, blue, gray, pink, purple, white, yellow, dark, light, two-columns, left-sidebar, fixed-layout, responsive-\
layout, accessibility-ready, custom-background, custom-colors, custom-header, custom-menu, editor-style, featured-image\
s, microformats, post-formats, rtl-language-support, sticky-post, threaded-comments, translation-ready                  
Text Domain: twentyfifteen                                                                                              
                                                                                                                        
This theme, like WordPress, is licensed under the GPL.                                                                  
Use it to make something cool, have fun, and share what you've learned with others.                                     
*/
@import url('../twentyfifteen/style.css');

footerのoverride

• footer.php親テーマから子テーマへコピー

$ cp twentyfifteen/footer.php twentyfifteen-child/
$ emacs twentyfifteen-child/footer.php 

• footer.phpをoverrideする。（ここではcopyright表記を設定）

twentyfifteen-child/footer.php

<?php
/**                                                                                                                     
 * The template for displaying the footer                                                                               
 *                                                                                                                      
 * Contains the closing of the "site-content" div and all content after.                                                
 *                                                                                                                      
 * @package WordPress                                                                                                   
 * @subpackage Twenty_Fifteen                                                                                           
 * @since Twenty Fifteen 1.0                                                                                            
 */
?>

        </div><!-- .site-content -->

        <footer id="colophon" class="site-footer" role="contentinfo">
                <div class="site-info">
                        <?php
                                /**                                                                                     
                                 * Fires before the Twenty Fifteen footer text for footer customization.                
                                 *                                                                                      
                                 * @since Twenty Fifteen 1.0                                                            
                                 */
                                do_action( 'twentyfifteen_credits' );
                        ?>
                        <a href="<?php echo esc_url( __( 'http://www.fullmarks.co.jp/', 'twentyfifteen' ) ); ?>"><?php \
printf( __( 'COPYRIGHT © %s, FULL MARKS, Inc.', 'twentyfifteen' ), '2015' ); ?></a>
                </div><!-- .site-info -->
        </footer><!-- .site-footer -->

</div><!-- .site -->

<?php wp_footer(); ?>

</body>
</html>

• 作成した子テーマをWordPressから有効にして、変更完了。

参考