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# Description This PR changes the old performance logging with `Instant` timers. I'm not sure if this is the best way to do it but it does help reveal where time is being spent on startup. This is what it looks like when you launch nushell with `cargo run -- --log-level info`. I'm using the `info` log level exclusively for performance monitoring at this point.  ## After Startup Since you're in the repl, you can continue running commands. Here's the output of `ls`, for instance.  Note that the above screenshots are in debug mode, so they're much slower than release. # User-Facing 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 -A clippy::needless_collect` to check that you're using the standard code style - `cargo test --workspace` to check that all tests pass # 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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| .. | ||
| tests | ||
| command.rs | ||
| config_files.rs | ||
| logger.rs | ||
| main.rs | ||
| README.md | ||
| signals.rs | ||
| terminal.rs | ||
| test_bins.rs | ||
| tests.rs | ||
Nushell REPL
This directory contains the main Nushell REPL (read eval print loop) as part of the CLI portion of Nushell, which creates the nu binary itself.
Current versions of the nu binary will use the Nu argument parsing logic to parse the commandline arguments passed to nu, leaving the logic here to be a thin layer around what the core libraries.