Typescript Watch - Cleaning Target Files on Source Deletion

[alohaninja]

Can we add a compiler option to also glob-delete a target file when the source file is removed? We run into this constantly and have to gulp clean frequently - it makes the usage of tsc -watch pointless as we have to constantly purge the output directory.

[mhegazy]

For tsc --watch we have a list of output files from the previous iteration, we just need to diff that with the current list, and delete the old outputs.

[timm-gs]

Is there a recommended way to work around this today? We have prepended rimraf lib/ to our build scripts, which removes the folder containing the compiled JS files.

But this is caused problems with sym-linked modules. The importing project's watch then gets broken with TS2307: Cannot find module, as it only seem to register the disappearance of the lib folder, but not the new one put in its place.

[admosity]

Can someone provide some pointers where I can help implement this? @mhegazy?

[mhegazy]

Things have gotten a bit more complicated with the addition of the Builder the and the WatchProgram (see #20234), there is not really a place to keep this information, since it is always partial, and we are not rebuilding the information after every change as we used to do. I suppose we could investigate restarting the builder if a file was removed. but we will need a way to detect that in the first place..

[bes]

Hi!

This is constantly biting us during development. A file is removed - but nightwatch / some other library still picks it up and runs tests based on code that should not be there.

Last activity on this was more than 8 months ago, but I hope there is still a possibility for this to be added?

Thanks!