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81baf53814
Closes #6174 # Description This PR aims to improve the performance of `ls` within large directories. `ls` now delegates the metadata collection to a thread in its thread pool. Before:  Now:  # User-Facing Changes If an error occurs while file metadata is being collected in another thread, the `ls` command now notifies the user about this error by sending an error value through a channel (which then gets collected into an iterator and shown to the user later on). However, if an error occurs _while_ sending this error value to the channel (i.e the resulting value iterator has been dropped), then the user is not notified of this error. I think this behavior is acceptable, since behavior only occurs when the `ls` pipeline has been dropped and the user is no longer interested in output from `ls`. # Tests + Formatting I do not know if it is a good idea to test this performance with `timeit`, since it can be unreliable.
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.