Watch custom lib and bin directories

[yberreby]

Cargo supports custom paths for library and binary targets, but cargo-watch does not read Cargo.toml to know what directories to watch.

That is, if I have lib/lib.rs and bin/main.rs, cargo-watch does not detect changes to these files.

[passcod]

Maybe duplicate/related to #31.

[yberreby]

Not quite a duplicate, but indeed related and waiting on rust-lang/cargo#1989. Maybe leave this issue open until the upstream issue is resolved.

[passcod]

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

Initial implementation will parse the Cargo.toml or something to watch the right thing.

[passcod]

This is now done with the entirely new version 4.0.0! It's a bit different from what was said here, as v4 watches the entire project and filters out target/ (and whatever other patterns you specify) instead of only watching specific folders.