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1f1f581357
In this pull request, I converted the `perf` function within `nu_utils` to a macro. This change facilitates easier usage within plugins by allowing the use of `env_logger` and setting `RUST_LOG=nu_plugin_polars` (or another plugin). Without this conversion, the `RUST_LOG` variable would need to be set to `RUST_LOG=nu_utils::utils`, which is less intuitive and impossible to narrow the perf results to one plugin.
Nushell core libraries and plugins
These sub-crates form both the foundation for Nu and a set of plugins which extend Nu with additional functionality.
Foundational libraries are split into two kinds of crates:
- Core crates - those crates that work together to build the Nushell language engine
- Support crates - a set of crates that support the engine with additional features like JSON support, ANSI support, and more.
Plugins are likewise also split into two types:
- Core plugins - plugins that provide part of the default experience of Nu, including access to the system properties, processes, and web-connectivity features.
- Extra plugins - these plugins run a wide range of different capabilities like working with different file types, charting, viewing binary data, and more.