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# Description This PR enables a new feature that shows which externals are found in your path via the syntax highlighter as you type.  This idea could use some improvement where it caches the items in your path and on some trigger, expires that cache and creates a new on. Right now, all it does is call the `which` crate on every character you type. This could be problematic if you have hundreds of paths in your PATH or if some of your paths in your Path point to extraordinarily slow file systems. WSL pointing to Windows comes to mind. Either way, I've thrown it up here for people to try and provide feedback. I think the novelty of showing what is valid and what isn't is pretty cool. I believe fish-shell also does this, IIRC. # User-Facing Changes <!-- List of all changes that impact the user experience here. This helps us keep track of breaking changes. --> # Tests + Formatting <!-- Don't forget to add tests that cover your changes. Make sure you've run and fixed any issues with these commands: - `cargo fmt --all -- --check` to check standard code formatting (`cargo fmt --all` applies these changes) - `cargo clippy --workspace -- -D warnings -D clippy::unwrap_used` to check that you're using the standard code style - `cargo test --workspace` to check that all tests pass (on Windows make sure to [enable developer mode](https://learn.microsoft.com/en-us/windows/apps/get-started/developer-mode-features-and-debugging)) - `cargo run -- -c "use std testing; testing run-tests --path crates/nu-std"` to run the tests for the standard library > **Note** > from `nushell` you can also use the `toolkit` as follows > ```bash > use toolkit.nu # or use an `env_change` hook to activate it automatically > toolkit check pr > ``` --> # After Submitting <!-- If your PR had any user-facing changes, update [the documentation](https://github.com/nushell/nushell.github.io) after the PR is merged, if necessary. This will help us keep the docs up to date. --> |
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