forked from extern/nushell
6cdfee3573
# Description As part of the refactor to split spans off of Value, this moves to using helper functions to create values, and using `.span()` instead of matching span out of Value directly. Hoping to get a few more helping hands to finish this, as there are a lot of commands to update :) # 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 fmt --all` applies these changes) - `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 std testing; testing run-tests --path crates/nu-std"` 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 <!-- 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. --> --------- Co-authored-by: Darren Schroeder <343840+fdncred@users.noreply.github.com> Co-authored-by: WindSoilder <windsoilder@outlook.com>
63 lines
1.6 KiB
Rust
63 lines
1.6 KiB
Rust
use nu_protocol::ast::Call;
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use nu_protocol::engine::{Command, EngineState, Stack};
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use nu_protocol::{
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Category, Example, IntoPipelineData, PipelineData, ShellError, Signature, Type, Value,
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};
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use std::process::Command as CommandSys;
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#[derive(Clone)]
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pub struct Clear;
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impl Command for Clear {
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fn name(&self) -> &str {
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"clear"
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}
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fn usage(&self) -> &str {
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"Clear the terminal."
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}
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fn signature(&self) -> Signature {
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Signature::build("clear")
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.category(Category::Platform)
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.input_output_types(vec![(Type::Nothing, Type::Nothing)])
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}
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fn run(
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&self,
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engine_state: &EngineState,
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stack: &mut Stack,
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call: &Call,
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_input: PipelineData,
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) -> Result<PipelineData, ShellError> {
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let span = call.head;
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if cfg!(windows) {
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CommandSys::new("cmd")
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.args(["/C", "cls"])
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.status()
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.map_err(|e| ShellError::IOErrorSpanned(e.to_string(), span))?;
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} else if cfg!(unix) {
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let mut cmd = CommandSys::new("/bin/sh");
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if let Some(Value::String { val, .. }) = stack.get_env_var(engine_state, "TERM") {
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cmd.env("TERM", val);
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}
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cmd.args(["-c", "clear"])
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.status()
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.map_err(|e| ShellError::IOErrorSpanned(e.to_string(), span))?;
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}
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Ok(Value::nothing(span).into_pipeline_data())
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}
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fn examples(&self) -> Vec<Example> {
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vec![Example {
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description: "Clear the terminal",
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example: "clear",
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result: None,
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}]
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}
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}
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