egg-bin/scripts/postinstall.js

egg developer tool

const debug = require('node:util').debuglog('egg-bin:postinstall');
const path = require('node:path');
const fs = require('node:fs');
const { runScript } = require('runscript');

// node postintall.js </path/to/egg-ts-helper/dist/bin> <framework-package-name>
const etsBinFile = process.argv[2] || require.resolve('egg-ts-helper/dist/bin');
const frameworkPackageName = process.argv[3] || 'egg';

// try to use INIT_CWD env https://docs.npmjs.com/cli/v9/commands/npm-run-script
// npm_rootpath is npminstall
const npmRunRoot = process.env.INIT_CWD || process.env.npm_rootpath;

debug('process.argv: %o', process.argv);
debug('process.env.INIT_CWD: %o', process.env.INIT_CWD);
debug('process.env.npm_rootpath: %o', process.env.npm_rootpath);
debug('etsBinFile: %o', etsBinFile);
debug('frameworkPackageName: %o', frameworkPackageName);
debug('npmRunRoot: %o', npmRunRoot);

if (npmRunRoot) {
  const pkgFile = path.join(npmRunRoot, 'package.json');
  const pkgFileExists = fs.existsSync(pkgFile);
  debug('pkgFile: %o exists: %o', pkgFile, pkgFileExists);
  if (pkgFileExists) {
    const pkg = require(pkgFile);
    // should set pkg.egg.declarations = true or pkg.egg.typescript = true
    if (!pkg.egg?.typescript && !pkg.egg?.declarations) return;
    // ignore eggModule and framework
    // framework package.json:
    // "egg": {
    //   "isFramework": true,
    //   "typescript": true
    // }
    if (pkg.eggModule) return;
    if (pkg.egg.isFramework) return;
    // ignore when the current app don't has a framework dependencies
    if (!pkg.dependencies || !pkg.dependencies[frameworkPackageName]) return;
    // set ETS_CWD
    process.env.ETS_CWD = npmRunRoot;
    // https://github.com/eggjs/egg-ts-helper/pull/104
    process.env.ETS_SCRIPT_FRAMEWORK = frameworkPackageName;
    console.log('[egg-bin:postinstall] run %s on %s', etsBinFile, npmRunRoot);
    runScript(`node ${etsBinFile}`);
  }
}