nushell/crates/nu-cmd-lang/src/default_context.rs
Klementiev Dmitry 4de0347fdc
Added help externs command (#8403)
# Description

`help externs` - command, which list external commands

Closes https://github.com/nushell/nushell/issues/8301

# User-Facing Changes

```nu
$ help externs
╭───┬──────────────┬─────────────┬───────────────────────────────────────────────────╮
│ # │     name     │ module_name │                       usage                       │
├───┼──────────────┼─────────────┼───────────────────────────────────────────────────┤
│ 0 │ git push     │ completions │ Push changes                                      │
│   │              │             │                                                   │
│ 1 │ git fetch    │ completions │ Download objects and refs from another repository │
│   │              │             │                                                   │
│ 2 │ git checkout │ completions │ Check out git branches and files                  │
│   │              │             │                                                   │
╰───┴──────────────┴─────────────┴───────────────────────────────────────────────────╯
```

# 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
fmt --all` applies these changes)
- `cargo clippy --workspace -- -D warnings -D clippy::unwrap_used -A
clippy::needless_collect` to check that you're using the standard code
style
- `cargo test --workspace` to check that all tests pass

# After Submitting

If your PR had any user-facing changes, update [the
documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.
2023-03-15 18:40:27 +01:00

75 lines
1.6 KiB
Rust

use nu_protocol::engine::{EngineState, StateWorkingSet};
use crate::*;
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,
Break,
Commandline,
Const,
Continue,
Def,
DefEnv,
Describe,
Do,
Echo,
ErrorMake,
ExportAlias,
ExportCommand,
ExportDef,
ExportDefEnv,
ExportExtern,
ExportUse,
Extern,
For,
Help,
HelpAliases,
HelpCommands,
HelpModules,
HelpExterns,
HelpOperators,
Hide,
HideEnv,
If,
Ignore,
Overlay,
OverlayUse,
OverlayList,
OverlayNew,
OverlayHide,
Let,
Loop,
Module,
Mut,
Return,
Try,
Use,
Version,
While,
};
//#[cfg(feature = "plugin")]
bind_command!(Register);
working_set.render()
};
if let Err(err) = engine_state.merge_delta(delta) {
eprintln!("Error creating default context: {err:?}");
}
engine_state
}