I'm wondering if there is an extension to cargo which I imagine as cargo rerun
, which will do cargo run
, but will then rebuild and restart the job if the code changes? It would be wonderful when developing my web app, and I can't have been the first to think of this...
To answer my own question, a bit more searching revealed cargo-watch, which enables doing what I want (with two commands running simultaneously in two terminals). If there is a simpler tool that is more targeted, I'd still love to hear about it!
The “watch” program for Unix-like systems can run any command on file changes.
Dedicated programs for this are more important for non-IDE coding and interpreted languages. Usually Rust users would prefer “cargo check” but I believe both official Rust extensions for VS Code allow this to be changed to any command.
Could you elaborate what you mean with two commands in two terminals? I would've imagined that something like cargo watch -x run
would do the job.
cargo watch -x build -s 'touch .trigger'
and
cargo watch --no-gitignore -w .trigger -x run
so that I don't have the code stop running for two minutes to recompile.
Also to avoid stopping the program when the code is currently not compiling, e.g. if I edit two files and save changes in the wrong order.
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