博客园备份提取

Posted 2022-02-09 oloroso

目录

• 简述
• 程序代码

简述

在博客园记录了一些文章，想把它备份到github上，还好大部分博文都是markdown格式的，博客园也支持备份导出，但是到处的是单个的XML文件。
为了把每一篇博文单独提取出来，所以写了一个小程序来提取。

github中需要如下图所示的格式，方能正确的分类

文件名需要日期开头，文件内容中最前面一段是文章的一些描述信息

程序代码

程序是用Golang编写的，代码如下：

// cnblogs2githubpages project main.go
package main

import (
    "bytes"
    "encoding/xml"
    "fmt"
    "io/ioutil"
    "os"
    "strings"
    "time"
)

// 结构体中要能够进行XML解析，则字段名必须以大写开头
// 帖子
type Post struct 
    XMLName     xml.Name `xml:"item"`
    Title       string   `xml:"title"`
    Link        string   `xml:"link"`
    Creator     string   `xml:"dc:creator"`
    Author      string   `xml:"author"`
    PubDate     string   `xml:"pubDate"`
    Guid        string   `xml:"guid"`
    Description string   `xml:"description,CDATA"`


type Blogs struct 
    XMLName       xml.Name `xml:"channel"`
    Title         string   `xml:"title"`
    Link          string   `xml:"link"`
    Description   string   `xml:"description"`
    Language      string   `xml:"language"`
    LastBuildDate string   `xml:"lastBuildDate"`
    PubDate       string   `xml:"pubDate"`
    Ttl           string   `xml:"ttl"`
    Items         []Post   `xml:"item"`

type RSS struct 
    XMLName xml.Name `xml:"rss"`
    Blogs   Blogs    `xml:"channel"`


func main() 
    if len(os.Args) != 2 
        return
    
    backupxml, err := ioutil.ReadFile(os.Args[1])
    if err != nil 
        fmt.Println(err.Error())
        return
    
    fmt.Println(len(backupxml))

    b := RSS

    err = xml.Unmarshal(backupxml, &b)
    if err != nil 
        fmt.Println(err.Error())
        return
    
    fmt.Println(len(b.Blogs.Items))

        // 逐个导出
    for i, _ := range b.Blogs.Items 
        var item = &(b.Blogs.Items[i])
        t, _ := time.Parse(time.RFC1123, item.PubDate)
        postdate := t.Format("2006-01-02")
        // fmt.Printf("%s\\n\\t%s\\n\\t%s\\n\\t%s\\n\\t%s\\n", date, item.Title, item.Link, item.Author, item.Description[0:64])
        postTitle := strings.ReplaceAll(item.Title, " ", "-")
        postTitle = strings.ReplaceAll(postTitle, "*", "")
        postTitle = strings.ReplaceAll(postTitle, "/", ".")
        postTitle = strings.ReplaceAll(postTitle, "\\\\", "")
        postTitle = strings.ReplaceAll(postTitle, "$", "")
        postTitle = strings.ReplaceAll(postTitle, "?", "")
        postTitle = strings.ReplaceAll(postTitle, ":", "-")
        postTitle = strings.ReplaceAll(postTitle, "。", "")
        filename := fmt.Sprintf("./%s-%s.md", postdate, postTitle)
        fmt.Println(filename)
                 
                // 根据博文的标题，做一个简单的分类（只适合当前情况）
        var categories string = "其它"
        
            title2 := strings.ToLower(item.Title)
            if strings.Contains(title2, "live555") 
                categories = "live555"
             else if strings.Contains(title2, "linux") || strings.Contains(title2, "ubuntu") 
                categories = "linux"
             else if strings.Contains(title2, "gcc") || strings.Contains(title2, "git") ||
                strings.Contains(title2, "编程") || strings.Contains(title2, "编译") ||
                strings.Contains(title2, "vc") || strings.Contains(title2, "c++") ||
                strings.Contains(title2, "visual") || strings.Contains(title2, "程序") 
                categories = "编程"
             else if strings.Contains(title2, "gdal") || strings.Contains(title2, "proj") ||
                strings.Contains(title2, "gis") || strings.Contains(title2, "地理") 
                categories = "地理信息"
            
        
        var desc bytes.Buffer

        desc.WriteString("---\\r\\n")
        desc.WriteString("layout:  post\\r\\n")
        desc.WriteString("title:  \\"")
        desc.WriteString(item.Title)
        desc.WriteString("\\"\\r\\ndate:  ")
        desc.WriteString(postdate)
        desc.WriteString("\\r\\ncategories:  ")
        desc.WriteString(categories)
        desc.WriteString("\\r\\ntags:  ")
        desc.WriteString(categories)
        desc.WriteString("\\r\\ncomments: 1\\r\\n")
        desc.WriteString("---\\r\\n")
        tocIndex := strings.Index(item.Description, "")
        if tocIndex != -1 
            tocIndex += len("[TOC]")
            desc.WriteString(item.Description[0:tocIndex])
            desc.WriteString("\\r\\n[博客园原文地址 ")
            desc.WriteString(item.Link)
            desc.WriteString("](")
            desc.WriteString(item.Link)
            desc.WriteString(")\\r\\n\\r\\n")
            desc.WriteString(item.Description[tocIndex:])
         else 
            desc.WriteString("\\r\\n[TOC]\\r\\n[博客园文章地址 ")
            desc.WriteString(item.Link)
            desc.WriteString("](")
            desc.WriteString(item.Link)
            desc.WriteString(")\\r\\n")
            desc.WriteString(item.Description)
        
        err := ioutil.WriteFile(filename, desc.Bytes(), os.ModePerm)
        if err != nil 
            fmt.Println(err.Error())