Tracking issue: trigger rerun on non-.rs-file changes

[LukasKalbertodt]

Changes of files, whose names do not end with .rs are currently ignored. Sometimes other files are expected to trigger a rerun of compilation. Two examples:

• parser generators like lalrpop will generate .rs files from .lalrpop files that are in the source directory
• sometimes arbitrary files are included via include_str! or something similar

[passcod]

Less edge-casey example: the Cargo.toml! Surely if that changes it could affect the whole project…

[Nemo157]

If rust-lang/cargo#1989 is implemented then that could take care of determining what files are important.

[passcod]

For my reference, the linked issue actually asks for a Cargo API that gives the list of paths that would trigger a recompile.

[passcod]

👍 Going to do this. Don't have an ETA, but it's on the todolist.

[JelteF]

Being able to watch .md files would also be really useful for automatically generating the docs.

[passcod]

This is now done with the entirely new version 4.0.0!