hyperbook/packages/markdown/updateEmojis.mjs at main · openpatch/hyperbook · GitHub

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// scripts/build-emoji-json.ts
import fs from "fs";
import path from "path";
import fetch from "node-fetch";

async function buildEmojiJson() {
  const res = await fetch("https://api.github.com/emojis");
  const json = await res.json();
  const emojiMap = {};

  for (const [name, url] of Object.entries(json)) {
    const match = url.match(/unicode\/([a-f0-9\-]+)\.png/);
    if (match) {
      const codepoints = match[1]
        .split("-")
        .map((cp) => String.fromCodePoint(parseInt(cp, 16)))
        .join("\u200D");
      emojiMap[name] = codepoints;
    }
  }

  const outputPath = path.join("src/github-emojis.json");
  fs.writeFileSync(outputPath, JSON.stringify(emojiMap, null, 2), "utf8");
  console.log(
    `✅ Saved ${Object.keys(emojiMap).length} emojis to ${outputPath}`,
  );

  return emojiMap;
}

async function updateDocs(emojiMap) {
  const enBase = `---
name: Emoji
permaid: emoji
---

# Emoji

Just like in most chat apps you can insert an emoji by using its name.

\`\`\`md
:smiley: :apple: :penguin:
\`\`\`

:smiley: :apple: :penguin:
`;

  const deBase = `---
name: Emoji
permaid: emoji
---

# Emoji

Wie in den meisten Chat-Apps kannst du Emojis durch Eingabe ihres Namens einfügen.

\`\`\`md
:smiley: :apple: :penguin:
\`\`\`

:smiley: :apple: :penguin:
`;

  const enHeader = `# GitHub Emoji Cheat Sheet

This file lists all supported GitHub-style emoji shortcodes and their corresponding Unicode characters.

| Emoji | Shortcode |
|:------|:----------|
`;

  const deHeader = `# GitHub Emoji Cheat Sheet
Diese Datei listet alle unterstützten GitHub-Emoji-Kürzel und ihre entsprechenden Unicode-Zeichen auf.

| Emoji | Shortcode
|:------|:----------|
`;

  const rows = Object.entries(emojiMap)
    .sort(([a], [b]) => a.localeCompare(b))
    .map(([name, emoji]) => `| ${emoji} | \`:${name}:\` |`)
    .join("\n");

  fs.writeFileSync(
    path.join(
      process.cwd(),
      "..",
      "..",
      "website",
      "en",
      "book",
      "elements",
      "emoji.md",
    ),
    enBase + "\n" + enHeader + rows + "\n",
    "utf8",
  );

  fs.writeFileSync(
    path.join(
      process.cwd(),
      "..",
      "..",
      "website",
      "de",
      "book",
      "elements",
      "emoji.md",
    ),
    deBase + "\n" + deHeader + rows + "\n",
    "utf8",
  );
}

buildEmojiJson()
  .catch((err) => {
    console.error("❌ Failed to fetch and build emoji map", err);
  })
  .then(updateDocs);