nushell/crates/nu-cli/src/commands/cd.rs
2020-05-30 11:36:04 +12:00

83 lines
1.9 KiB
Rust

use crate::commands::WholeStreamCommand;
use crate::prelude::*;
use std::path::PathBuf;
use nu_errors::ShellError;
use nu_protocol::{Signature, SyntaxShape};
use nu_source::Tagged;
#[derive(Deserialize)]
pub struct CdArgs {
pub(crate) path: Option<Tagged<PathBuf>>,
}
pub struct Cd;
#[async_trait]
impl WholeStreamCommand for Cd {
fn name(&self) -> &str {
"cd"
}
fn signature(&self) -> Signature {
Signature::build("cd").optional(
"directory",
SyntaxShape::Path,
"the directory to change to",
)
}
fn usage(&self) -> &str {
"Change to a new path."
}
async fn run(
&self,
args: CommandArgs,
registry: &CommandRegistry,
) -> Result<OutputStream, ShellError> {
let name = args.call_info.name_tag.clone();
let shell_manager = args.shell_manager.clone();
let (args, _): (CdArgs, _) = args.process(&registry).await?;
shell_manager.cd(args, name)
}
fn examples(&self) -> Vec<Example> {
vec![
Example {
description: "Change to a new directory called 'dirname'",
example: "cd dirname",
result: None,
},
Example {
description: "Change to your home directory",
example: "cd",
result: None,
},
Example {
description: "Change to your home directory (alternate version)",
example: "cd ~",
result: None,
},
Example {
description: "Change to the previous directory",
example: "cd -",
result: None,
},
]
}
}
#[cfg(test)]
mod tests {
use super::Cd;
#[test]
fn examples_work_as_expected() {
use crate::examples::test as test_examples;
test_examples(Cd {})
}
}