feat: 脚手架基本ok

bin/utils/url.ts

@@ -0,0 +1,47 @@
+import url from 'url';
+import isurl from 'is-url';
+import tlds from './tlds.js';
+
+export function getDomain(inputUrl: string) {
+  const parsed = url.parse(inputUrl).host;
+  var parts = parsed.split('.');
+  if (parts[0] === 'www' && parts[1] !== 'com') {
+    parts.shift();
+  }
+  var ln = parts.length,
+    i = ln,
+    minLength = parts[parts.length - 1].length,
+    part;
+
+  // iterate backwards
+  while ((part = parts[--i])) {
+    // stop when we find a non-TLD part
+    if (
+      i === 0 || // 'asia.com' (last remaining must be the SLD)
+      i < ln - 2 || // TLDs only span 2 levels
+      part.length < minLength || // 'www.cn.com' (valid TLD as second-level domain)
+      tlds.indexOf(part) < 0 // officialy not a TLD
+    ) {
+      return part;
+    }
+  }
+}
+
+function appendProtocol(inputUrl: string): string {
+  const parsed = url.parse(inputUrl);
+  if (!parsed.protocol) {
+    const urlWithProtocol = `https://${inputUrl}`;
+    return urlWithProtocol;
+  }
+  return inputUrl;
+}
+
+export function normalizeUrl(urlToNormalize: string): string {
+  const urlWithProtocol = appendProtocol(urlToNormalize);
+
+  if (isurl(urlWithProtocol)) {
+    return urlWithProtocol;
+  } else {
+    throw new Error(`Your url "${urlWithProtocol}" is invalid`);
+  }
+}