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Typora+hexo+GithubActions

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Symbols count in article: 3.6k Reading time ≈ 3 mins.

问题

在使用Typora编写文章，并通过GithubAction自动生成部署时，发现插入图片路径转义上出现了问题。

我使用的是hexo install hexo-asset-image --save，但该插件早已achieved，所以需要修改部分逻辑。

相关版本

环境 版本
hexo 6.2.0
hexo-cli 4.3.1

分析

观察log可以发现，图片路径发生了错误的转义：

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INFO  Generated: categories [Helloworld] for post [source/_posts/hello-world.md][ Hello World test ]
update link as:-->/.com//image-20231105014117763.png
update link as:-->/.com//image-20231105014126054.png
update link as:-->/.com//image-20231105014134737.png
update link as:-->/.com//image-20231105014117763.png
update link as:-->/.com//image-20231105014126054.png
update link as:-->/.com//image-20231105014134737.png

image前错误地加上了/.com//，这是期望之外的。

hexo-asset-image.js如下所示：

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'use strict';
var cheerio = require('cheerio');

// http://stackoverflow.com/questions/14480345/how-to-get-the-nth-occurrence-in-a-string
function getPosition(str, m, i) {
  return str.split(m, i).join(m).length;
}

hexo.extend.filter.register('after_post_render', function(data){
  var config = hexo.config;
  if(config.post_asset_folder){
    var link = data.permalink;
    var beginPos = getPosition(link, '/', 3) + 1;
    var appendLink = '';
    // In hexo 3.1.1, the permalink of "about" page is like ".../about/index.html".
    // if not with index.html endpos = link.lastIndexOf('.') + 1 support hexo-abbrlink
    if(/.*\/index\.html$/.test(link)) {
      // when permalink is end with index.html, for example 2019/02/20/xxtitle/index.html
      // image in xxtitle/ will go to xxtitle/index/
      appendLink = 'index/';
      var endPos = link.lastIndexOf('/');
    }
    else {
      var endPos = link.lastIndexOf('.');
    }
    link = link.substring(beginPos, endPos) + '/' + appendLink;

    var toprocess = ['excerpt', 'more', 'content'];
    for(var i = 0; i < toprocess.length; i++){
      var key = toprocess[i];

      var $ = cheerio.load(data[key], {
        ignoreWhitespace: false,
        xmlMode: false,
        lowerCaseTags: false,
        decodeEntities: false
      });

      $('img').each(function(){
        if ($(this).attr('src')){
          // For windows style path, we replace '\' to '/'.
          var src = $(this).attr('src').replace('\\', '/');
          if(!(/http[s]*.*|\/\/.*/.test(src)
            || /^\s+\//.test(src)
            || /^\s*\/uploads|images\//.test(src))) {
            // For "about" page, the first part of "src" can't be removed.
            // In addition, to support multi-level local directory.
            var linkArray = link.split('/').filter(function(elem){
              return elem != '';
            });
            var srcArray = src.split('/').filter(function(elem){
              return elem != '' && elem != '.';
            });
            if(srcArray.length > 1)
            srcArray.shift();
            src = srcArray.join('/');

            $(this).attr('src', config.root + link + src);
            console.info&&console.info("update link as:-->"+config.root + link + src);
          }
        }else{
          console.info&&console.info("no src attr, skipped...");
          console.info&&console.info($(this));
        }
      });
      data[key] = $.html();
    }
  }
});

其中

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$(this).attr('src', config.root + link + src);
console.info&&console.info("update link as:-->"+config.root + link + src);

修改为

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$(this).attr('src', src);
console.info&&console.info("update link as:-->"+ src);

并另存为hexo-asset-image-fix.js，放至/source下（我是这么干的，其他地方不知是否可行）。

在/.github/workflows/deploy.yml中安装Hexo这一步中加入

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- name: Install Hexo
  run: |
    npm install hexo-cli -g
    npm install
    cat source/hexo-asset-image-fix.js > node_modules/hexo-asset-image/index.js

即可成功显示。

新的问题 2023-11-07

需注意，路径中不能有空格。⚠