nushell/crates/nu-cmd-lang/src/default_context.rs
Darren Schroeder 7636963732
add attr category @category to custom command attributes (#15137)
# Description

This PR adds the `@category` attribute to nushell for use with custom
commands.

### Example Code
```nushell
# Some example with category
@category "math"
@search-terms "addition"
@example "add two numbers together" {
    blah 5 6
} --result 11
def blah [
  a: int # First number to add
  b: int # Second number to add
  ] {
    $a + $b
}
```
#### Source & Help
```nushell
❯ source blah.nu
❯ help blah
Some example with category

Search terms: addition

Usage:
  > blah <a> <b>

Flags:
  -h, --help: Display the help message for this command

Parameters:
  a <int>: First number to add
  b <int>: Second number to add

Input/output types:
  ╭─#─┬─input─┬─output─╮
  │ 0 │ any   │ any    │
  ╰───┴───────┴────────╯

Examples:
  add two numbers together
  > blah 5 6
  11
```
#### Show the category
```nushell
❯ help commands | where name == blah
╭─#─┬─name─┬─category─┬─command_type─┬────────description─────────┬─────params─────┬──input_output──┬─search_terms─┬─is_const─╮
│ 0 │ blah │ math     │ custom       │ Some example with category │ [table 3 rows] │ [list 0 items] │ addition     │ false    │
╰───┴──────┴──────────┴──────────────┴────────────────────────────┴────────────────┴────────────────┴──────────────┴──────────╯
```

# User-Facing Changes
<!-- List of all changes that impact the user experience here. This
helps us keep track of breaking changes. -->

# Tests + Formatting
<!--
Don't forget to add tests that cover your changes.

Make sure you've run and fixed any issues with these commands:

- `cargo fmt --all -- --check` to check standard code formatting (`cargo
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- `cargo clippy --workspace -- -D warnings -D clippy::unwrap_used` to
check that you're using the standard code style
- `cargo test --workspace` to check that all tests pass (on Windows make
sure to [enable developer
mode](https://learn.microsoft.com/en-us/windows/apps/get-started/developer-mode-features-and-debugging))
- `cargo run -- -c "use toolkit.nu; toolkit test stdlib"` to run the
tests for the standard library

> **Note**
> from `nushell` you can also use the `toolkit` as follows
> ```bash
> use toolkit.nu # or use an `env_change` hook to activate it
automatically
> toolkit check pr
> ```
-->

# After Submitting
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/cc @Bahex
2025-02-18 15:35:52 -06:00

77 lines
1.7 KiB
Rust

use crate::*;
use nu_protocol::engine::{EngineState, StateWorkingSet};
pub fn create_default_context() -> EngineState {
let mut engine_state = EngineState::new();
let delta = {
let mut working_set = StateWorkingSet::new(&engine_state);
macro_rules! bind_command {
( $( $command:expr ),* $(,)? ) => {
$( working_set.add_decl(Box::new($command)); )*
};
}
// Core
bind_command! {
Alias,
AttrCategory,
AttrExample,
AttrSearchTerms,
Break,
Collect,
Const,
Continue,
Def,
Describe,
Do,
Echo,
ErrorMake,
ExportAlias,
ExportCommand,
ExportConst,
ExportDef,
ExportExtern,
ExportUse,
ExportModule,
Extern,
For,
Hide,
HideEnv,
If,
Ignore,
Overlay,
OverlayUse,
OverlayList,
OverlayNew,
OverlayHide,
Let,
Loop,
Match,
Module,
Mut,
Return,
Scope,
ScopeAliases,
ScopeCommands,
ScopeEngineStats,
ScopeExterns,
ScopeModules,
ScopeVariables,
Try,
Use,
Version,
While,
};
working_set.render()
};
if let Err(err) = engine_state.merge_delta(delta) {
eprintln!("Error creating default context: {err:?}");
}
engine_state
}