nushell/crates
Devyn Cairns 8e2917b9ae
Make assignment and const consistent with let/mut (#13385)
# Description

This makes assignment operations and `const` behave the same way `let`
and `mut` do, absorbing the rest of the pipeline.

Changes the lexer to be able to recognize assignment operators as a
separate token, and then makes the lite parser continue to push spans
into the same command regardless of any redirections or pipes if an
assignment operator is encountered. Because the pipeline is no longer
split up by the lite parser at this point, it's trivial to just parse
the right hand side as if it were a subexpression not contained within
parentheses.

# User-Facing Changes
Big breaking change. These are all now possible:

```nushell
const path = 'a' | path join 'b'

mut x = 2
$x = random int
$x = [1 2 3] | math sum

$env.FOO = random chars
```

In the past, these would have led to (an attempt at) bare word string
parsing. So while `$env.FOO = bar` would have previously set the
environment variable `FOO` to the string `"bar"`, it now tries to run
the command named `bar`, hence the major breaking change.

However, this is desirable because it is very consistent - if you see
the `=`, you can just assume it absorbs everything else to the right of
it.

# Tests + Formatting
Added tests for the new behaviour. Adjusted some existing tests that
depended on the right hand side of assignments being parsed as
barewords.

# After Submitting
- [ ] release notes (breaking change!)
2024-07-30 18:55:22 -05:00
..
nu-cli Use the Default implementation of Suggestion (#13409) 2024-07-30 08:32:40 -05:00
nu-cmd-base Bump version to 0.96.2 (#13485) 2024-07-29 17:20:55 -07:00
nu-cmd-extra Bump version to 0.96.2 (#13485) 2024-07-29 17:20:55 -07:00
nu-cmd-lang Bump shadow-rs from 0.29.0 to 0.30.0 (#13436) 2024-07-30 13:33:21 +00:00
nu-cmd-plugin Bump version to 0.96.2 (#13485) 2024-07-29 17:20:55 -07:00
nu-color-config Bump version to 0.96.2 (#13485) 2024-07-29 17:20:55 -07:00
nu-command Make assignment and const consistent with let/mut (#13385) 2024-07-30 18:55:22 -05:00
nu-derive-value Bump version to 0.96.2 (#13485) 2024-07-29 17:20:55 -07:00
nu-engine Bump version to 0.96.2 (#13485) 2024-07-29 17:20:55 -07:00
nu-explore Bump version to 0.96.2 (#13485) 2024-07-29 17:20:55 -07:00
nu-glob Bump version to 0.96.2 (#13485) 2024-07-29 17:20:55 -07:00
nu-json Bump version to 0.96.2 (#13485) 2024-07-29 17:20:55 -07:00
nu-lsp Bump version to 0.96.2 (#13485) 2024-07-29 17:20:55 -07:00
nu-parser Make assignment and const consistent with let/mut (#13385) 2024-07-30 18:55:22 -05:00
nu-path Bump version to 0.96.2 (#13485) 2024-07-29 17:20:55 -07:00
nu-plugin feat: make ctrlc available to plugins (#13181) 2024-07-30 08:29:18 -05:00
nu-plugin-core feat: make ctrlc available to plugins (#13181) 2024-07-30 08:29:18 -05:00
nu-plugin-engine feat: make ctrlc available to plugins (#13181) 2024-07-30 08:29:18 -05:00
nu-plugin-protocol feat: make ctrlc available to plugins (#13181) 2024-07-30 08:29:18 -05:00
nu-plugin-test-support Bump version to 0.96.2 (#13485) 2024-07-29 17:20:55 -07:00
nu-pretty-hex Bump version to 0.96.2 (#13485) 2024-07-29 17:20:55 -07:00
nu-protocol feat: make ctrlc available to plugins (#13181) 2024-07-30 08:29:18 -05:00
nu-std fix: Make log respect use_ansi_coloring setting. (#13442) 2024-07-30 08:34:11 -05:00
nu-system Bump version to 0.96.2 (#13485) 2024-07-29 17:20:55 -07:00
nu-table Bump version to 0.96.2 (#13485) 2024-07-29 17:20:55 -07:00
nu-term-grid Bump version to 0.96.2 (#13485) 2024-07-29 17:20:55 -07:00
nu-test-support Bump version to 0.96.2 (#13485) 2024-07-29 17:20:55 -07:00
nu-utils fix: Make log respect use_ansi_coloring setting. (#13442) 2024-07-30 08:34:11 -05:00
nu_plugin_custom_values Bump version to 0.96.2 (#13485) 2024-07-29 17:20:55 -07:00
nu_plugin_example feat: make ctrlc available to plugins (#13181) 2024-07-30 08:29:18 -05:00
nu_plugin_formats Bump version to 0.96.2 (#13485) 2024-07-29 17:20:55 -07:00
nu_plugin_gstat Bump version to 0.96.2 (#13485) 2024-07-29 17:20:55 -07:00
nu_plugin_inc Bump version to 0.96.2 (#13485) 2024-07-29 17:20:55 -07:00
nu_plugin_nu_example Bump version to 0.96.2 (#13485) 2024-07-29 17:20:55 -07:00
nu_plugin_polars Add "--as-columns" flag to polars into-df (#13449) 2024-07-30 08:50:50 -05:00
nu_plugin_python Bump version to 0.96.2 (#13485) 2024-07-29 17:20:55 -07:00
nu_plugin_query Bump version to 0.96.2 (#13485) 2024-07-29 17:20:55 -07:00
nu_plugin_stress_internals Bump version to 0.96.2 (#13485) 2024-07-29 17:20:55 -07:00
nuon Bump version to 0.96.2 (#13485) 2024-07-29 17:20:55 -07:00
README.md Remove old nushell/merge engine-q 2022-02-07 14:54:06 -05:00

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.