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# Description This PR fixes a globbing bug in the `du` command. The problem was that `--exclude` needed to be a `NuGlob` instead of a `String`. A variety of ways were tried to fix this, including spread operators and `into glob` but none of them worked. Here's the [Discord Conversation](https://discord.com/channels/601130461678272522/1214950311207243796/1214950311207243796) that documents the attempts. ### Before ```nushell ❯ du $env.PWD -x crates/** Error: nu:🐚:cant_convert × Can't convert to string. ╭─[entry #1:1:16] 1 │ du $env.PWD -x crates/** · ────┬──── · ╰── can't convert glob to string ╰──── ``` ### After ```nushell ❯ du $env.PWD -x crates/** ╭─#─┬────path────┬apparent─┬physical─┬───directories───┬files╮ │ 0 │ D:\nushell │ 55.6 MB │ 55.6 MB │ [table 17 rows] │ │ ╰───┴────────────┴─────────┴─────────┴─────────────────┴─────╯ ```
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.