john-goldsmith/vscode-aws-cloudformation-auto-template-generator

import { access } from 'fs-extra'

/**
 * Checks if a file exists at the provided file path location.
 *
 * @async
 * @param {string} filePath
 * @return {Promise<boolean>}
 * @see https://github.com/aws/aws-toolkit-vscode/blob/master/src/shared/filesystemUtilities.ts#L19-L27
 */
export default async function fileExists(filePath: string): Promise<boolean> {
  try {
    await access(filePath)
  } catch (err) {
    return false
  }
  return true
}