nushell/crates/nu-cli/src/commands/clear.rs
Jason Gedge b2c5af457e
Move most of the root package into a subcrate. (#1445)
This improves incremental build time when working on what was previously
the root package. For example, previously all plugins would be rebuilt
with a change to `src/commands/classified/external.rs`, but now only
`nu-cli` will have to be rebuilt (and anything that depends on it).
2020-03-04 13:58:20 -05:00

41 lines
1.0 KiB
Rust

use crate::commands::WholeStreamCommand;
use crate::prelude::*;
use nu_errors::ShellError;
use nu_protocol::Signature;
use std::process::Command;
pub struct Clear;
impl WholeStreamCommand for Clear {
fn name(&self) -> &str {
"clear"
}
fn signature(&self) -> Signature {
Signature::build("clear")
}
fn usage(&self) -> &str {
"clears the terminal"
}
fn run(
&self,
args: CommandArgs,
registry: &CommandRegistry,
) -> Result<OutputStream, ShellError> {
clear(args, registry)
}
}
fn clear(_args: CommandArgs, _registry: &CommandRegistry) -> Result<OutputStream, ShellError> {
if cfg!(windows) {
Command::new("cmd")
.args(&["/C", "cls"])
.status()
.expect("failed to execute process");
} else if cfg!(unix) {
Command::new("/bin/sh")
.args(&["-c", "clear"])
.status()
.expect("failed to execute process");
}
Ok(OutputStream::empty())
}