Promise based command execution. With buffer control, fairly good tests and a test double.
npm install @shepherdorg/ts-execPromise based convenience wrapper around child_process.ExecFile. Emphasis on testability, so it comes with a convenient
test double, enabling you to unit test your CLI controlling programs.
Optional collection of stdout/stderr process outputs to be returned with the promise result.
Option to provide string to be written to stdin of the child process.
See the specs for example usage.