update-dependency.ts

#!/usr/bin/env node
/*-----------------------------------------------------------------------------
| Copyright (c) Jupyter Development Team.
| Distributed under the terms of the Modified BSD License.
|----------------------------------------------------------------------------*/

import * as path from 'path';
import * as utils from './utils';
import packageJson = require('package-json');

// Make sure we have required command line arguments.
if (process.argv.length !== 3) {
  let msg = '** Must supply an update specifier\n';
  process.stderr.write(msg);
  process.exit(1);
}

// Extract the desired library target and specifier.
let parts = process.argv[2].slice(1).split('@');
parts[0] = process.argv[2][0] + parts[0];

// Handle the version.
if (parts.length === 1) {
  parts.push('latest');
}
packageJson(parts[0], { version: parts[1] }).then(data => {
  handlePackages(data.name, `~${data.version}`);
});

// Handle the packages
function handlePackages(name: string, specifier: string) {
  utils.getLernaPaths().forEach(pkgPath => {
    handlePackage(name, specifier, pkgPath);
  });
  handlePackage(name, specifier, path.resolve('.'));
  utils.run('yarn');
}

/**
 * Handle an individual package on the path - update the dependency.
 */
function handlePackage(
  name: string,
  specifier: string,
  packagePath: string
): void {
  // Read in the package.json.
  packagePath = path.join(packagePath, 'package.json');
  let data: any;
  try {
    data = utils.readJSONFile(packagePath);
  } catch (e) {
    console.log('Skipping package ' + packagePath);
    return;
  }

  // Update dependencies as appropriate.
  for (let dtype of ['dependencies', 'devDependencies']) {
    let deps = data[dtype] || {};
    if (name in deps) {
      deps[name] = specifier;
    }
  }

  // Write the file back to disk.
  utils.writePackageData(packagePath, data);
}