Issues with changes not detected immediately after ts-morph exits

[Roaders]

Describe the bug
It seems that writing of source files happens after ts-morph has exited (and after subsequent tasks run).

Version: 5.0.0

A migration script that runs ts-morph to replace imports then immediately runs tslint --fix to reorder imports does not successfully reorder the imports. If I run the script a second time the out of place imports are correctly picked up by tslint and are fixed.
I am wondering if the actual writing of the source files is happening after ts-morph exits.

I am kind of expecting the response to be no you're crazy this can't happen but at the moment I can't see anything else that explains what I am seeing...

If I add a 2 second delay between ts-morph finishing and lint starting it DOES work correctly.

[dsherret]

This is probably my fault. I’ve been meaning to update the docs. Are you awaiting the result of calling .save()?

Side note: probably don’t use .saveSync() on a project because it will be super slow in comparison.

[Roaders]

yes, that sounds like that's the problem. Is there a callback I can use to be informed when it's finished?

[dsherret]

@Roaders it returns a promise so you should be able to do project.save().then(() => console.log("Done.")) or use the await keyword in certain contexts.

[Roaders]

ok, thanks. I'll give that a try.

[dsherret]

@Roaders please reopen this if it's still an issue.