import axios from 'axios'; import { safeGet } from './index'; import { getLocalConfig } from '../api'; const regex = /import\s([\s\S]*?)\sfrom\s('|")((@\w[\w\.\-]+\/)?(\w[\w\.\-]+))(\/[\w\.\-]+)*\2/gm; // (1 ) (2 )(3(4 ) (5 ))(6 ) const extractPkgs = (code: string, excludePkgs?: string[]): string[] => { let matchRet = null; const pkgNames: string[] = []; while ((matchRet = regex.exec(code)) != null) { const pkgName = matchRet[3]; if (excludePkgs?.indexOf(pkgName) === -1) { pkgNames.push(pkgName); } } return pkgNames; }; const getPkgLatestVersion = (pkg: string): Promise => { const localConfig = getLocalConfig(); return axios .get(`${localConfig.npmRegistry}/${pkg}`) .then((res: any) => { return [pkg, safeGet(res, 'data.dist-tags.latest', '*')]; }) .catch((err) => { console.log(`get package ${pkg} info failed, the error is:`, err); return [pkg, '*']; }); }; const analyzeDeps = ( code: string, excludePkgs?: string[], ): Promise<{ [pkgName: string]: string }> => { const pkgs = extractPkgs(code, excludePkgs); return Promise.all(pkgs.map((pkg) => getPkgLatestVersion(pkg))) .then((pkgResults) => { const map: any = {}; pkgResults.forEach(([pkg, version]) => { map[pkg] = version; }); return map; }) .catch((err) => { console.log('analyze deps failed, the error is:', err); }); }; export default analyzeDeps;