javascript - 如何重新触发 GitHub 的语法荧光笔、Linguist？

Question

如何使用 Javascript 重新触发 GitHub 的语法荧光笔？

在 GitHub 上查看代码文件时，有时 GitHub's Linguist以某种方式被调用。在我的 Chrome Inspector 选项卡中，看起来正在加载的资源是

https://ghe.spotify.net/assets/frameworks-1ec6db7370e0fb4a44d10339aab88815d4b1b048f96a77b08f5e7166ae644496.js

(该链接只有我可以访问，但它已经缩小且无法读取。)不过，它的作用是获取每一行代码(按表行组织)并插入 <span>元素的类确定应如何着色。

  <tr>
    <td id="L1" class="blob-num js-line-number" data-line-number="1"></td>
    <td id="LC1" class="blob-code blob-code-inner js-file-line"><span class="pl-k">import</span> { <span class="pl-smi">Reference</span>, <span class="pl-smi">References</span> } <span class="pl-k">from</span> <span class="pl-s"><span class="pl-pds">"</span>./lib/reference<span class="pl-pds">"</span></span>;</td>
  </tr>
  <tr>
    <td id="L2" class="blob-num js-line-number" data-line-number="2"></td>
    <td id="LC2" class="blob-code blob-code-inner js-file-line"><span class="pl-k">import</span> { <span class="pl-smi">Decoration</span>, <span class="pl-smi">Decorations</span> } <span class="pl-k">from</span> <span class="pl-s"><span class="pl-pds">"</span>./lib/decoration<span class="pl-pds">"</span></span>;</td>
  </tr>
  <tr>
    <td id="L3" class="blob-num js-line-number" data-line-number="3"></td>
    <td id="LC3" class="blob-code blob-code-inner js-file-line"><span class="pl-k">import</span> { <span class="pl-smi">ReferenceContainerComponent</span> } <span class="pl-k">from</span> <span class="pl-s"><span class="pl-pds">"</span>./components/reference-container-component<span class="pl-pds">"</span></span>;</td>
  </tr>
  <tr>
    <td id="L4" class="blob-num js-line-number" data-line-number="4"></td>
    <td id="LC4" class="blob-code blob-code-inner js-file-line"><span class="pl-k">import</span> <span class="pl-c1">*</span> <span class="pl-k">as</span> <span class="pl-smi">React</span> <span class="pl-k">from</span> <span class="pl-s"><span class="pl-pds">"</span>react<span class="pl-pds">"</span></span>;</td>
  </tr>
  <tr>
    <td id="L5" class="blob-num js-line-number" data-line-number="5"></td>
    <td id="LC5" class="blob-code blob-code-inner js-file-line"><span class="pl-k">import</span> <span class="pl-c1">*</span> <span class="pl-k">as</span> <span class="pl-smi">ReactDOM</span> <span class="pl-k">from</span> <span class="pl-s"><span class="pl-pds">"</span>react-dom<span class="pl-pds">"</span></span>;</td>
  </tr>
  <tr>
    <td id="L6" class="blob-num js-line-number" data-line-number="6"></td>
    <td id="LC6" class="blob-code blob-code-inner js-file-line"><span class="pl-k">import</span> { <span class="pl-smi">DecorationsRequest</span>, <span class="pl-smi">IndexedCommitsRequest</span>, <span class="pl-smi">ReferencesRequest</span> } <span class="pl-k">from</span> <span class="pl-s"><span class="pl-pds">"</span>./lib/extension-message<span class="pl-pds">"</span></span>;</td>
  </tr>
  <tr>
    <td id="L7" class="blob-num js-line-number" data-line-number="7"></td>
    <td id="LC7" class="blob-code blob-code-inner js-file-line"><span class="pl-k">import</span> <span class="pl-c1">*</span> <span class="pl-k">as</span> <span class="pl-smi">Github</span> <span class="pl-k">from</span> <span class="pl-s"><span class="pl-pds">"</span>./lib/github<span class="pl-pds">"</span></span>;</td>
  </tr>
  <tr>
    <td id="L8" class="blob-num js-line-number" data-line-number="8"></td>
    <td id="LC8" class="blob-code blob-code-inner js-file-line"><span class="pl-k">import</span> { <span class="pl-smi">IndexedCommits</span>, <span class="pl-smi">IndexedCommit</span> } <span class="pl-k">from</span> <span class="pl-s"><span class="pl-pds">"</span>./lib/indexed-commit<span class="pl-pds">"</span></span>;</td>
  </tr>
  <tr>
    <td id="L9" class="blob-num js-line-number" data-line-number="9"></td>
    <td id="LC9" class="blob-code blob-code-inner js-file-line"><span class="pl-k">import</span> { <span class="pl-smi">ViewIndexedCommit</span> } <span class="pl-k">from</span> <span class="pl-s"><span class="pl-pds">"</span>./components/view-indexed-commit<span class="pl-pds">"</span></span>;</td>
  </tr>
  <tr>
    <td id="L10" class="blob-num js-line-number" data-line-number="10"></td>
    <td id="LC10" class="blob-code blob-code-inner js-file-line"><span class="pl-k">import</span> <span class="pl-c1">*</span> <span class="pl-k">as</span> <span class="pl-smi">DecorationRenderer</span> <span class="pl-k">from</span> <span class="pl-s"><span class="pl-pds">"</span>./lib/decoration-renderer<span class="pl-pds">"</span></span>;</td>
  </tr>

我正在编写一个 Chrome 扩展程序，用于修改 GitHub(确切地说，是 GitHub Enterprise)显示的代码。我想在扩展进行修改后运行 GitHub 的语法荧光笔，但我不知道要调用什么 Javascript 函数来实现这一点。

我尝试过的:

• 我尝试过查看 Linguist's source code寻求提示，但我根本找不到任何 Javascript。
• 我尝试在 <table> 上设置子树修改断点在 Chrome 的检查器中，尽管也选中了网络缓存选项，但页面似乎根本没有中断。

Answer 1

Linguist 仅在服务器端运行，并且在任何情况下都不负责语法突出显示。 Linguist仅检测每个文件的语言，然后返回the appropriate grammar用于语法突出显示。最后一步也发生在服务器端，然后缓存输出以避免为每个请求重新计算。 每次推送到存储库时都会触发后台作业以检测并突出显示修改的文件。

您链接到的文件似乎是 Primer 的一部分 (还有第二个 frameworks-***.css 文件，我猜它是相关的，其中包含版权 header )。 Primer 应用 CSS 样式，但这只是在文件根据适当的语法规则进行标记和解析之后。

您可以尝试要求 GitHub 支持人员开源执行实际语法突出显示的代码。人们提出的问题越多，它就越有可能成为优先事项。