JekyllからHexoへの移行時の問題記録

hexo.extend.tag.register('render_bookmark', function(args, content) {
    const [url, title, img, yid, bid] = args.map(getValue);
    const firstChar = title ? title[0].toUpperCase() : '';
    const strip_html = hexo.extend.helper.get('strip_html').bind(hexo);
    const trim = hexo.extend.helper.get('trim').bind(hexo);
    if (yid) {
        return `<p class='embed-responsive embed-responsive-16by9'><iframe src='https://www.youtube.com/embed/${yid}?rel=0' title='YouTube video player' frameborder='0' allow='accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture' allowfullscreen></iframe></p>`
    } else if (bid) {
        return `<p class='embed-responsive embed-responsive-16by9' style='border-bottom: 1px solid #ddd;'><iframe src='//player.bilibili.com/player.html?bvid=${bid}&high_quality=1&as_wide=1' scrolling='no' border='0' frameborder='no' framespacing='0' allowfullscreen></iframe></p>`;
    }
    return `<p><a class='link-bookmark' href='${url}' target='_blank'><span data-bookmark-img='${img}' data-bookmark-title='${firstChar}'><img src='${img}'/></span><span><span> ${title}</span><span> ${strip_html(trim(content))}</span><span> ${url}</span></span></a></p>`;
}, {
    ends: true,
});

/**
 * permalink 中的 name 不符合预期，对于 _posts/life/2015/xxx.md 来说，在文档中 :name 表示的是 xxx，但是实际是 life-2015-xxx
 */
hexo.extend.filter.register('post_permalink', function (data) {
  // 在这里修改 post.name 的值
  const arr = data.split('/').filter(Boolean);
  const categories = arr[0];
  const name = arr[1];
  return `${categories}/${name.split('-').filter(Boolean).slice(3).join('-')}`;
});

'use strict';
const pagination = require('hexo-pagination');
hexo.config.index_generator = Object.assign(
  {
    per_page:
      typeof hexo.config.per_page === 'undefined' ? 10 : hexo.config.per_page,
    order_by: '-date',
  },
  hexo.config.index_generator
);
hexo.extend.generator.register('index', function (locals) {
  const config = this.config;
  const posts = locals.posts.sort(config.index_generator.order_by);
  posts.data.sort((a, b) => (b.sticky || 0) - (a.sticky || 0));
  const paginationDir = config.pagination_dir || 'page';
  const path = config.index_generator.path || '';
  return pagination(path, posts, {
    perPage: config.index_generator.per_page,
    layout: ['index', 'archive'],
    format: paginationDir + '%d/',
    data: {
      __index: true,
    },
  });
});

hexo.extend.filter.register('after_render:html', function (str) {
  return str.replace(/<s>/g, '<del>').replace(/<\/s>/g, '</del>');
});

module Jekyll
    module BookmarkFilter
      def bookmark_filter(input)
        input.gsub(/^\<p\>\<a\s+class=\"link-bookmark\"\shref=(.*)\starget=\"_blank\"\>\<span\>(.*)\<\/span\>\<span\>\<span\>(.*)\<\/span\>\<span\>\n(.*)\n\<\/span\>\<span\>(.*)\<\/span\>\<\/span\>\<\/a\>\<\/p\>$/, '<p><a href=\1 target="_blank">\3</a></p>');
      end
    end
  end
  
  Liquid::Template.register_filter(Jekyll::BookmarkFilter)

const fs = require('fs');
const path = require('path');
const ejs = require('ejs');
const rootDate = new Date();

function getDate(_date) {
  const date = _date ? new Date(_date) : rootDate;
  // 获取各个部分
  const days = ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'];
  const months = [
    'Jan',
    'Feb',
    'Mar',
    'Apr',
    'May',
    'Jun',
    'Jul',
    'Aug',
    'Sep',
    'Oct',
    'Nov',
    'Dec',
  ];
  const dayName = days[date.getDay()];
  const day = String(date.getDate()).padStart(2, '0');
  const month = months[date.getMonth()];
  const year = date.getFullYear();
  const hours = String(date.getHours()).padStart(2, '0');
  const minutes = String(date.getMinutes()).padStart(2, '0');
  const seconds = String(date.getSeconds()).padStart(2, '0');

  // 获取时区偏移（以分钟为单位）
  const timezoneOffset = -date.getTimezoneOffset();
  const sign = timezoneOffset >= 0 ? '+' : '-';
  const offsetHours = String(
    Math.floor(Math.abs(timezoneOffset) / 60)
  ).padStart(2, '0');
  const offsetMinutes = String(Math.abs(timezoneOffset) % 60).padStart(2, '0');

  // 格式化为 RFC 2822 格式的字符串
  return `${dayName}, ${day} ${month} ${year} ${hours}:${minutes}:${seconds} ${sign}${offsetHours}${offsetMinutes}`;
}

hexo.extend.generator.register('xml', function (locals) {
  // 仿照 Liquid 内置的日期格式写法
  // 注意如果前面不加这个 \uFEFF 则不会被识别为 xml
  const template =
    '\uFEFF' +
    `<?xml version="1.0" encoding="UTF-8"?>
    <rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
    <channel>
        <title>Xheldon Blog</title>
        <description>The Answer to Life, the Universe and Everything is...</description>
        <link>https://www.xheldon.com</link>
        <atom:link href="https://www.xheldon.com/feed.xml" rel="self" type="application/rss+xml" />
        <pubDate><%= getDate() %></pubDate>
        <lastBuildDate><%= getDate() %></lastBuildDate>
        <generator>Hexo v<%= version %></generator>
        <% for (post of posts.sort((a, b) => (new Date(b.date).getTime()) - (new Date(a.date).getTime())).slice(0, 10)) { %>
        <item>
            <title><%= post.title %></title>
            <description><%= bookmark_filter(post.content) %></description>
            <pubDate><%= getDate(post.date) %></pubDate>
            <link><%= post.permalink %></link>
            <guid isPermaLink="true"><%= post.permalink %></guid>
            <% for (tag of post.tags.data) { %>
                <category><%= tag.name %></category>
            <% } %>
            <% for (cat of post.categories.data) { %>
                <category><%- escape_html(cat.name) %></category>
            <% } %>
        </item>
        <% } %>
    </channel>
    </rss>`;

  const bookmark_filter = hexo.extend.helper.get('bookmark_filter').bind(hexo);
  const escape_html = hexo.extend.helper.get('escape_html').bind(hexo);

  const data = {
    posts: locals.posts.toArray(),
    getDate,
    version: hexo.version,
    escape_html,
    bookmark_filter,
  };

  const jsonContent = ejs.render(template, data);

  const outputPath = path.join('source/_posts', 'feed.xml');
  fs.writeFileSync(outputPath, jsonContent, { encoding: 'utf8' });

  return {
    path: 'feed.xml',
    data: jsonContent,
  };
});