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node_modules/resolve-from/index.js 932 Bytes
aaac7fed   liuqimichale   add
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  'use strict';
  const path = require('path');
  const Module = require('module');
  
  const resolveFrom = (fromDir, moduleId, silent) => {
  	if (typeof fromDir !== 'string') {
  		throw new TypeError(`Expected \`fromDir\` to be of type \`string\`, got \`${typeof fromDir}\``);
  	}
  
  	if (typeof moduleId !== 'string') {
  		throw new TypeError(`Expected \`moduleId\` to be of type \`string\`, got \`${typeof moduleId}\``);
  	}
  
  	fromDir = path.resolve(fromDir);
  	const fromFile = path.join(fromDir, 'noop.js');
  
  	const resolveFileName = () => Module._resolveFilename(moduleId, {
  		id: fromFile,
  		filename: fromFile,
  		paths: Module._nodeModulePaths(fromDir)
  	});
  
  	if (silent) {
  		try {
  			return resolveFileName();
  		} catch (err) {
  			return null;
  		}
  	}
  
  	return resolveFileName();
  };
  
  module.exports = (fromDir, moduleId) => resolveFrom(fromDir, moduleId);
  module.exports.silent = (fromDir, moduleId) => resolveFrom(fromDir, moduleId, true);