Refactor: use external dependencies

Build/build-mitm-hostname.js

@@ -2,6 +2,8 @@ const fs = require('fs');
 const { promises: fsPromises } = fs;
 const pathFn = require('path');
 const table = require('table');
+const listDir = require('@sukka/listdir');
+const { green, yellow } = require('picocolors');
 
 const PRESET_MITM_HOSTNAMES = [
   '*baidu.com',
@@ -158,13 +160,6 @@ const PRESET_MITM_HOSTNAMES = [
 })();
 
 /** Util function */
-function green(...args) {
-  return `\u001b[32m${args.join(' ')}\u001b[0m`;
-}
-function yellow(...args) {
-  return `\u001b[33m${args.join(' ')}\u001b[0m`;
-}
-
 function parseDomain(input) {
   try {
     const url = new URL(`https://${input}`);
@@ -195,37 +190,3 @@ function escapeRegExp(string = '') {
     ? string.replace(reRegExpChar, '\\$&')
     : string;
 }
-
-function listDir(path, options) {
-  const results = [];
-  options = Object.assign({ ignoreHidden: true, ignorePattern: null }, options);
-  return listDirWalker(path, results, '', options).then(() => results);
-}
-function listDirWalker(path, results, parent, options) {
-  const promises = [];
-  return readAndFilterDir(path, options).then(items => {
-    items.forEach(item => {
-      const currentPath = pathFn.join(parent, item.name);
-      if (item.isDirectory()) {
-        promises.push(listDirWalker(pathFn.join(path, item.name), results, currentPath, options));
-      }
-      else {
-        results.push(currentPath);
-      }
-    });
-  }).then(() => Promise.all(promises));
-}
-function readAndFilterDir(path, options) {
-  const { ignoreHidden = true, ignorePattern } = options;
-  return fs.promises.readdir(path, Object.assign(Object.assign({}, options), { withFileTypes: true }))
-    .then(results => {
-      if (ignoreHidden) {
-        results = results.filter(({ name }) => !name.startsWith('.'));
-      }
-      if (ignorePattern) {
-        results = results.filter(({ name }) => !ignorePattern.test(name));
-      }
-      return results;
-    });
-}
-