verdaccio/packages/core/file-locking/src/lockfile.ts

import { Callback } from '@verdaccio/types';

import { lockfile, statDir, statfile } from './utils';

/**
 * locks a file by creating a lock file
 * @param name
 * @param callback
 */
const lockFile = function (name: string, callback: Callback): void {
  Promise.resolve()
    .then(() => {
      return statDir(name);
    })
    .then(() => {
      return statfile(name);
    })
    .then(() => {
      return lockfile(name);
    })
    .then(() => {
      callback(null);
    })
    .catch((err) => {
      callback(err);
    });
};

export { lockFile };