Initial commit.

wordpress-to-jekyll.php

@@ -0,0 +1,149 @@
+<?php
+
+/**
+ * Wordpress to Jekyll
+ *
+ * A small conversion script that will convert a Wordpress export
+ * into individual post files that you can use for a Jekyll
+ * powered website.
+ *
+ * @author David Winter <i@djw.me>
+ */
+class WordpressToJekyll {
+
+	protected $_export_file;
+	protected $_build_directory;
+	protected $_layout_post = 'post';
+
+	protected $_items;
+
+	protected $_yaml;
+
+	public function __construct($wordpress_xml_file, YamlDumperInterface $yaml, $build_directory)
+	{
+		$this->_export_file = $wordpress_xml_file;
+
+		$this->_load_items();
+
+		$this->_yaml = $yaml;
+
+		$this->_build_directory = rtrim($build_directory, '/');
+	}
+
+	protected function _setup_build_directory()
+	{
+		if ( ! file_exists($this->_build_directory))
+		{
+			return mkdir($this->_build_directory);
+		}
+
+		return TRUE;
+	}
+
+	public function convert()
+	{
+		$this->_setup_build_directory();
+
+		foreach ($this->_items as $item)
+		{
+			$post = $this->_post_array($item);
+			$formatted_post = $this->_format_post($post);
+			$this->_write_post($post, $formatted_post);
+		}
+	}
+
+	protected function _load_items()
+	{
+		$xml = simplexml_load_file($this->_export_file, 'SimpleXMLElement', LIBXML_NOCDATA);
+		$this->_items = $xml->channel->item;
+	}
+
+	protected function _post_array($item)
+	{
+		$post = array();
+
+		$namespaces = $item->getNameSpaces(TRUE);
+
+		$wp = $item->children($namespaces['wp']);
+
+		$post['filename'] = sprintf('%s-%s.md',
+			date('Y-m-d', strtotime($wp->post_date)),
+			$wp->post_name
+		);
+
+		$post['meta']['layout'] = $this->_layout_post;
+
+		$post['meta']['title'] = (string) $item->title;
+
+		$tags = array();
+
+		if ($item->category)
+		{
+			foreach ($item->category as $tag)
+			{
+				if ( (string) $tag['domain'] === 'post_tag')
+				{
+					$tags[] = (string) $tag['nicename'];
+				}
+			}
+		}
+
+		if ( ! empty($tags))
+		{
+			$post['meta']['tags'] = $tags;
+		}
+
+		$content = $item->children($namespaces['content']);
+
+		$post['content'] = str_replace("<!--more-->\n\n", '', $content->encoded);
+
+		return $post;
+	}
+
+	protected function _format_post($post)
+	{
+		$meta = $this->_yaml->dump($post['meta']);
+
+		$post_content = <<<EOT
+---
+{$meta}
+---
+
+{$post['content']}
+
+EOT;
+
+		return $post_content;
+	}
+
+	protected function _write_post($post, $formatted)
+	{
+		return file_put_contents($this->_build_directory.'/'.$post['filename'], $formatted);
+	}
+
+}
+
+interface YamlDumperInterface {
+
+	public function dump($data);
+
+}
+
+require('SymfonyComponents/YAML/sfYaml.php');
+
+class YamlDumper implements YamlDumperInterface {
+
+	public function dump($data)
+	{
+		$yaml = new sfYaml();
+
+		return $yaml->dump($data);
+	}
+
+}
+
+$file = (isset($argv[1])) ? $argv[1] : getcwd().'/wordpress-export.xml';
+$build = (isset($argv[2])) ? $argv[2] : getcwd().'/posts';
+
+$convert = new WordpressToJekyll($file, new YamlDumper, $build);
+$convert->convert();