mirror of
https://github.com/nushell/nushell.git
synced 2025-05-07 08:22:58 +00:00
b9a7faad5a
This PR has two parts. The first part is the addition of the `Stack::set_pwd()` API. It strips trailing slashes from paths for convenience, but will reject otherwise bad paths, leaving PWD in a good state. This should reduce the impact of faulty code incorrectly trying to set PWD. (https://github.com/nushell/nushell/pull/12760#issuecomment-2095393012) The second part is implementing a PWD recovery mechanism. PWD can become bad even when we did nothing wrong. For example, Unix allows you to remove any directory when another process might still be using it, which means PWD can just "disappear" under our nose. This PR makes it possible to use `cd` to reset PWD into a good state. Here's a demonstration: ```sh mkdir /tmp/foo cd /tmp/foo # delete "/tmp/foo" in a subshell, because Nushell is smart and refuse to delete PWD nu -c 'cd /; rm -r /tmp/foo' ls # Error: × $env.PWD points to a non-existent directory # help: Use `cd` to reset $env.PWD into a good state cd / pwd # prints / ``` Also, auto-cd should be working again.
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.