如何用代码将博客从hexo批量迁移到wordpress

以你之姓@ 2023-06-18 15:56 21阅读 0赞

感觉"业务"有扩展，hexo不能动态添加文章有点不太适应

## wordpress添加markdown支持 ##

选择了`WP Editor.md`这个插件，新增post，测试markdown能够生效。

## 获取hexo博客的md文档 ##

在`source/_posts`下有所有的markdown文件，全都是博客的内容，并且是有一定的格式规律的。这里我需要的关于博客的数据有标题、发布日期、标签以及目录，当然还有博客正文。非常好解析。

读取所有md文件的代码如下：

dir = "/xxxxx/blog-source/source/_posts"
    files = os.listdir(dir)
    count = 0
    if __name__ == '__main__':
        files = os.listdir(dir)
        can_go_on = False
        for file in files:
            full_path = dir + '/' + file
            print(full_path)
    		parse_md_file(full_path)
            # if count >= 10:
            # break;
            count = count + 1
            print("Count: ", count)
        print(count)

## 解析每个md文档 ##

首先，是文件最开始有两个`---`，在这两个`---`之间的全部是文章的属性，之外的全是文章的内容。解析文章属性的时候，需要对文章的标签、目录做可能存在多个处理，所以用`list`存储。其中`post_meta_data_status`的各值的含义如下：

<table> 
 <thead> 
  <tr> 
   <th>post_meta_data_status</th> 
   <th>含义</th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr> 
   <td>0</td> 
   <td>初始状态，刚开始解析md文件</td> 
  </tr> 
  <tr> 
   <td>1</td> 
   <td>正在解析文章属性状态</td> 
  </tr> 
  <tr> 
   <td>2</td> 
   <td>文章属性解析完成，正在解析文章内容</td> 
  </tr> 
 </tbody> 
</table>

解析md文件的代码如下：

def get_property(line, splitter=':'):
        items = line.split(splitter)
        item = items[len(items) - 1].strip()
        return item
    
    def parse_md_file(file_path, print_content=False):
        title = ""
        tag = []
        category = []
        last_item = []
        date = ""
        post_content = ""
        with open(file_path, encoding='utf8') as f:
            post_meta_data_status = 0
            for line in f:
                if post_meta_data_status == 2:
                    post_content += line
                    # print(line, end='')
                else:
                    if line.__contains__("---"):
                        if post_meta_data_status == 0:
                            post_meta_data_status = 1
                        else:
                            post_meta_data_status = 2
                    else:
                        if line.__contains__("title"):
                            title = get_property(line).strip()
                        elif line.__contains__("date"):
                            date = get_property(line, ': ').strip()
                        elif line.__contains__("tags"):
                            item = get_property(line)
                            if item!='':
                                tag.append(item)
                            last_item = tag
                        elif line.__contains__("categories"):
                            item = get_property(line)
                            if item != '':
                                category.append(item)
                            last_item = category
                        elif line.__contains__('-'):
                            item = get_property(line, '-')
                            if item != '':
                                last_item.append(item)
            print("title: ", title)
            print("date: ", date)
            print("tags: ", tag)
            print("categories: ", category)
            date=datetime.datetime.strptime(date, "%Y-%m-%d %H:%M:%S")

## 将解析后的数据上传到wordpress ##

上传主要用到了[wordpress-xmlrpc][]。其基本操作可参看[该官网上的用例][Link 1]。

安装方式：`pip install python-wordpress-xmlrpc`

from wordpress_xmlrpc import Client, WordPressPost
    from wordpress_xmlrpc.methods.posts import GetPosts, NewPost
    from wordpress_xmlrpc.methods.users import GetUserInfo
    
    wp = Client('http://www.wordpress.site/xmlrpc.php', 'username', 'password')
    
    def add_post(title, date, content, tag, category):
        post = WordPressPost()
        post.title = title
        post.content = content
        post.post_status = 'publish'
    	# date为python的datetime类型
        post.date = date
        post.terms_names = {
        
            'post_tag': tag,
            'category': category,
        }
        post_id = wp.call(NewPost(post))
        print(post_id)

如果需要更新更多的post相关的信息，可参看[WordPressPost文档][WordPressPost]。

[wordpress-xmlrpc]: https://pypi.org/project/python-wordpress-xmlrpc/
[Link 1]: https://python-wordpress-xmlrpc.readthedocs.io/en/latest/examples/posts.html#working-with-posts
[WordPressPost]: https://python-wordpress-xmlrpc.readthedocs.io/en/latest/ref/wordpress.html#WordPressPost