forked from extern/nushell
# Description This PR adds new flag `--keep-order/-k` for the `par_each` filter. This flag keeps sequence of output same as the order of input. Output without the flag: ```nu > 1..6 | par-each {|n| $n * 2 } ╭────╮ │ 4 │ │ 10 │ │ 2 │ │ 8 │ │ 12 │ │ 6 │ ╰────╯ ``` Output with the `--keep-order` flag: ```nu > 1..6 | par-each --keep-order {|n| $n * 2 } ╭────╮ │ 2 │ │ 4 │ │ 6 │ │ 8 │ │ 10 │ │ 12 │ ╰────╯ ``` I think the presence of this flag is justified, since: - Much easier to use than `.. | enumerate | par-each {|p| update item ..} | sort-by index | get item` - Faster, as it uses internally parallel sorting in the same thread pool A note about naming: it may conflict with `--keep-empty/-k` flag of the `each` filter if the same feature will be used in `par-each`, so maybe it needs some other name.
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.