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# Description A slower, gentler alternative to #14531, in that we're just moving one setting *out* of `default_env.nu` in this PR ;-). All this does is transition from using `$env.NU_LIB_DIRS` in the startup config to `const $NU_LIB_DIRS`. Also updates the `sample_env.nu` to reflect the changes. Details: Before: `$env.NU_LIB_DIRS` was unnecessary set both in `main()` and in `default_env.nu` After: `$env.NU_LIB_DIRS` is only set in `main()` Before: `$env.NU_LIB_DIRS` was set to `config-dir/scripts` and `data-dir/completions` After: `$env.NU_LIB_DIRS` is set to an empty list, and `const NU_LIB_DIRS` is set to the directories above Before: Using `--include-path (-I)` would set the `$env.NU_LIB_DIRS` After: Using `--include-path (-I)` sets the constant `$NU_LIB_DIRS` # User-Facing Changes There shouldn't be any breaking changes here. The `$env.NU_LIBS_DIRS` still works for most cases. There are a few areas we need to clean-up to make sure that the const is usable (`nu-check`, et. al.) but they will still work in the meantime with the older `$env` version. # Tests + Formatting * Changed the Type-check on the `$env` version. * Added a type check for the const version. - 🟢 `toolkit fmt` - 🟢 `toolkit clippy` - 🟢 `toolkit test` - 🟢 `toolkit test stdlib` # After Submitting Doc updates
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.