add generate script

Author: keithamus

generate.js

@@ -0,0 +1,82 @@
+#!/usr/bin/env node
+import {request} from 'https'
+import {readFileSync, writeFileSync} from 'fs'
+const escapeMap = {
+  '&': '&',
+  '<': '&lt;',
+  '>': '&gt;',
+  "'": '&#39;',
+  '"': '&#quot;',
+}
+function escape(str) {
+  let newStr = ''
+  for(const char of str) newStr += char in escapeMap ? escapeMap[char] : char
+  return newStr
+}
+
+function json(url) {
+  return new Promise((resolve, reject) => {
+    const req = request(url, {
+      headers: {
+        'User-Agent': `nodejs ${process.version}`,
+        'Authorization': `Bearer ${process.env['GITHUB_TOKEN']}`,
+        'Accept': 'application/vnd.github.mercy-preview+json'
+      }
+    }, async res => {
+      res.on('error', reject)
+      let body = ''
+      for await (const chunk of res) {
+        body += chunk
+      }
+      resolve(JSON.parse(body))
+    })
+    req.on('error', reject)
+    req.end()
+  })
+}
+
+async function *getRepos() {
+  for(let page = 1; page < 1000; page += 1) {
+    const repos = await json(`https://api.github.com/orgs/github/repos?type=public&per_page=100&page=${page}`)
+    if (!repos.length) return
+    for (const repo of repos) {
+      if (!repo.topics) continue
+      if (repo.private) continue
+      if (repo.fork) continue
+      if (!repo.topics.includes('web-components')) continue
+      if (!repo.topics.includes('custom-elements')) continue
+      yield repo
+    }
+  }
+}
+
+let readme = readFileSync('readme.head.md', 'utf-8')
+const bowerJson = JSON.parse(readFileSync('bower.json', 'utf-8'))
+bowerJson.dependencies = {}
+const packageJson = JSON.parse(readFileSync('package.json', 'utf-8'))
+packageJson.dependencies = {}
+let repos = []
+for await (const repo of getRepos()) {
+  if (repo.full_name === 'github/custom-element-boilerplate') continue
+  repos.push(repo)
+}
+repos.sort((a, b) => a.full_name.localeCompare(b.full_name))
+readme += `
+We have ${repos.length} open source custom elements:
+`
+for (const repo of repos) {
+  bowerJson.dependencies[repo.name] = repo.full_name
+  packageJson.dependencies[`@${repo.full_name}`] = '*'
+  readme += `
+### [${escape(repo.full_name)}](${repo.html_url})
+
+${escape(repo.description)}
+
+[Link](${repo.html_url})
+`
+}
+readme += readFileSync('readme.tail.md', 'utf-8')
+writeFileSync('README.md', readme)
+writeFileSync('bower.json', JSON.stringify(bowerJson, null, 2))
+writeFileSync('package.json', JSON.stringify(packageJson, null, 2))
+

package.json

@@ -0,0 +1,18 @@
+{
+  "name": "github-elements",
+  "private": true,
+  "description": "GitHub's Web Component collection.",
+  "keywords": [
+    "element-collection"
+  ],
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/github/github-elements.git"
+  },
+  "license": "MIT",
+  "type": "module",
+  "main": "",
+  "scripts": {
+    "generate": "node generate.js"
+  }
+}

readme.head.md

@@ -0,0 +1,3 @@
+# github-elements
+
+GitHub's Web Component collection.