64 lines
1.3 KiB
Rust
64 lines
1.3 KiB
Rust
use crate::{
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jobs::JobBldr,
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libsh::error::{ShErr, ShErrKind, ShResult},
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parse::{NdRule, Node},
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prelude::*,
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state::{self},
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};
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use super::setup_builtin;
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pub fn cd(node: Node, job: &mut JobBldr) -> ShResult<()> {
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let span = node.get_span();
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let NdRule::Command {
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assignments: _,
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argv,
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} = node.class
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else {
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unreachable!()
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};
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let (argv, _) = setup_builtin(argv, job, None)?;
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let new_dir = if let Some((arg, _)) = argv.into_iter().next() {
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PathBuf::from(arg)
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} else {
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PathBuf::from(env::var("HOME").unwrap())
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};
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if !new_dir.exists() {
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return Err(ShErr::full(
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ShErrKind::ExecFail,
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format!("cd: No such file or directory '{}'", new_dir.display()),
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span,
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));
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}
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if !new_dir.is_dir() {
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return Err(ShErr::full(
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ShErrKind::ExecFail,
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format!("cd: Not a directory '{}'", new_dir.display()),
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span,
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));
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}
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if let Err(e) = env::set_current_dir(new_dir) {
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return Err(ShErr::full(
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ShErrKind::ExecFail,
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format!("cd: Failed to change directory: {}", e),
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span,
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));
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}
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let new_dir = env::current_dir().map_err(|e| {
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ShErr::full(
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ShErrKind::ExecFail,
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format!("cd: Failed to get current directory: {}", e),
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span,
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)
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})?;
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unsafe { env::set_var("PWD", new_dir) };
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state::set_status(0);
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Ok(())
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}
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