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# Description Fixes #12520 # User-Facing Changes Breaking change: Any operation parsing input with `PWD` to set the environment will now fail with `ShellError::AutomaticEnvVarSetManually` Furthermore transactions containing the special env-vars will be rejected before executing any modifications. Prevoiusly this was changing valid variables before while leaving valid variables after the violation untouched. ## `PWD` handling. Now failing ``` {PWD: "/trolling"} | load-env ``` already failing ``` load-env {PWD: "/trolling"} ``` ## Error management ``` > load-env {MY_VAR1: foo, PWD: "/trolling", MY_VAR2: bar} Error: nu:🐚:automatic_env_var_set_manually × PWD cannot be set manually. ╭─[entry #1:1:2] 1 │ load-env {MY_VAR1: foo, PWD: "/trolling", MY_VAR2: bar} · ────┬─── · ╰── cannot set 'PWD' manually ╰──── help: The environment variable 'PWD' is set automatically by Nushell and cannot be set manually. ``` ### Before: ``` > $env.MY_VAR1 foo > $env.MY_VAR2 Error: nu:🐚:name_not_found .... ``` ### After: ``` > $env.MY_VAR1 Error: nu:🐚:name_not_found .... > $env.MY_VAR2 Error: nu:🐚:name_not_found .... ``` # After Submitting We need to check if any integrations rely on this hack.
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.