hexo-plugin-aurora/lib/injector/index.js

A plugin for Hexo Aurora theme

const fs = require('fs');
const path = require('path');
const yaml = require('js-yaml');
const chalk = require('chalk');
const { throwError } = require('../helpers/utils');

function resolve(dir) {
  return path.join(__dirname, dir);
}

module.exports = function (hexo) {
  const themeConfig = Object.assign(hexo.theme.config || {}, hexo.config.theme_config);

  if (!themeConfig.site_meta) {
    throwError(
      'Aurora Config Error',
      `${chalk.cyan(
        'site_meta'
      )} is not configured, please provide the site-meta configure in _config.aurora.yml`
    );
    return;
  }

  if (!themeConfig.site_meta.cdn) {
    throwError(
      'Aurora Config Error',
      `${chalk.cyan(
        'cdn'
      )} in site_meta is not configured, please provide the cdn configure in _config.aurora.yml`
    );
    return;
  }

  if (themeConfig.site_meta.cdn) {
    // Injecting locale injections
    const rawLocales = fs.readFileSync(resolve(`../../data/${themeConfig.site_meta.cdn}.yml`));
    const locales = yaml.load(rawLocales);

    for (let script of locales.scripts) {
      hexo.extend.injector.register('head_end', script);
    }

    for (let cs of locales.css) {
      hexo.extend.injector.register('head_end', cs);
    }

    if (themeConfig.gitalk && themeConfig.gitalk.enable) {
      for (let cdn of locales.plugins.gitalk) {
        hexo.extend.injector.register('head_ned', cdn);
      }
    }

    if (themeConfig.valine && themeConfig.valine.enable) {
      for (let cdn of locales.plugins.valine) {
        hexo.extend.injector.register('head_ned', cdn);
      }
    }

    if (themeConfig.twikoo && themeConfig.twikoo.enable) {
      for (let cdn of locales.plugins.twikoo) {
        hexo.extend.injector.register('head_ned', cdn);
      }
    }

    if (themeConfig.waline && themeConfig.waline.enable) {
      for (let cdn of locales.plugins.waline) {
        hexo.extend.injector.register('head_ned', cdn);
      }
    }
  }

  // SEO injections
  if (themeConfig.site_meta.description) {
    hexo.extend.injector.register(
      'head_begin',
      `<meta name="description" content="${themeConfig.site_meta.description}"></meta>`
    );
  }

  if (themeConfig.site_meta.keywords) {
    hexo.extend.injector.register(
      'head_begin',
      `<meta name="keywords" content="${themeConfig.site_meta.keywords}"></meta>`
    );
  }

  if (themeConfig.site_meta.author) {
    hexo.extend.injector.register(
      'head_begin',
      `<meta name="author" content="${themeConfig.site_meta.author}"></meta>`
    );
  }

  if (themeConfig.injects) {
    // Injecting additional custom injections
    // Injecting all scripts
    if (themeConfig.injects.scripts) {
      const scripts = themeConfig.injects.scripts;
      for (script of scripts) {
        hexo.extend.injector.register('body_end', script);
      }
    }
    // Injecting all css
    if (themeConfig.injects.css) {
      const css = themeConfig.injects.css;
      for (cs of css) {
        hexo.extend.injector.register('head_end', cs);
      }
    }
  }
};