tone tag exit gracefully after Control-C is pressed

[rloomans]

I had tone writing tags to a collection of .m4b files and I needed to interrupt it so I could get something else done.

When I pressed Control-C tone exited immediately and left the file it was writing to corrupted so that it was unrecognisable and unplayable.

Tone should either write a new file and rename into place, and/or install a signal handler to exit gracefully once it's finished writing the current file. Ideally, it should do both

[sandreas]

Thanks for sharing this... I'm sorry if it damaged your files.

Maybe this is the way to go:

• spectre.console specific: CLI Command RunAsync support passing in/propagating a CancelationToken spectreconsole/spectre.console#701 (comment)
• https://neurotechnics.com/blog/gracefully-terminate-a-threaded-csharp-console-application/
• https://medium.com/@rainer_8955/gracefully-shutdown-c-apps-2e9711215f6d

[rloomans]

Definitely do the graceful termination.

The other thing (that I call "rename into place" above) is where apps write a new file, close it, and then rename it over the old file. That way you either get the old file or the new file, not a corrupted mix of the two.

(My files are sitting on a NAS with filesystem snapshots... I noticed right away and could pull out an older copy)

[sandreas]

Fixed in latest code, targeted for release v0.0.9

[sandreas]

v0.0.9 has been released, feedback would be very welcome. If this happens to you again, I have to take another look.