serverless/bin/serverless.js

#!/usr/bin/env node

'use strict';

// `EvalError` is used to not pollute global namespace but still have the value accessible globally
EvalError.$serverlessCommandStartTime = process.hrtime();

const nodeVersion = Number(process.version.split('.')[0].slice(1));

if (nodeVersion < 12) {
  if (nodeVersion >= 10) {
    require('../lib/utils/logDeprecation')(
      'OUTDATED_NODEJS',
      'Support for Node.js versions below v12 will be dropped with next major release. Please upgrade at https://nodejs.org/en/'
    );
  } else {
    const serverlessVersion = Number(require('../package.json').version.split('.')[0]);
    process.stdout.write(
      `Serverless: \x1b[91mInitialization error: Node.js v${nodeVersion} is not supported by ` +
        `Serverless Framework v${serverlessVersion}. Please upgrade\x1b[39m\n`
    );
    process.exit(1);
  }
}

if (require('../lib/utils/isStandaloneExecutable')) {
  require('../lib/utils/standalone-patch');
  if (process.argv[2] === 'binary-postinstall' && process.argv.length === 3) {
    require('../scripts/postinstall');
    return;
  }
}

// CLI Triage
(() => {
  try {
    const componentsV1 = require('@serverless/cli');
    const componentsV2 = require('@serverless/components');

    // Serverless Components v1 CLI (deprecated)
    if (componentsV1.runningComponents()) return () => componentsV1.runComponents();

    // Serverless Components CLI
    if (componentsV2.runningComponents()) return () => componentsV2.runComponents();
  } catch (error) {
    if (process.env.SLS_DEBUG) {
      require('../lib/classes/Error').logWarning(`CLI triage crashed with: ${error.stack}`);
    }
  }

  // Serverless Framework CLI
  return () => require('../scripts/serverless');
})()();