forked from extern/nushell
44 lines
1.1 KiB
Rust
44 lines
1.1 KiB
Rust
use crate::errors::ShellError;
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use crate::object::Value;
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use crate::prelude::*;
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use derive_new::new;
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use std::path::PathBuf;
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#[derive(new)]
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pub struct CdBlueprint;
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impl crate::CommandBlueprint for CdBlueprint {
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fn create(
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&self,
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args: Vec<Value>,
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_host: &dyn Host,
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env: &mut Environment,
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) -> Result<Box<dyn Command>, ShellError> {
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let target = match args.first() {
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// TODO: This needs better infra
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None => return Err(ShellError::string(format!("cd must take one arg"))),
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Some(v) => v.as_string()?.clone(),
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};
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Ok(Box::new(Cd {
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cwd: env.cwd().to_path_buf(),
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target,
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}))
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}
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}
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#[derive(new)]
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pub struct Cd {
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cwd: PathBuf,
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target: String,
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}
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impl crate::Command for Cd {
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fn run(&mut self, _stream: VecDeque<Value>) -> Result<VecDeque<ReturnValue>, ShellError> {
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let mut stream = VecDeque::new();
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let path = dunce::canonicalize(self.cwd.join(&self.target).as_path())?;
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stream.push_back(ReturnValue::change_cwd(path));
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Ok(stream)
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}
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}
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