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cd now tracks PWD

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Signed-off-by: Ava Affine <ava@sunnypup.io>
This commit is contained in:
Ava Apples Affine 2024-02-20 12:45:34 -08:00
parent f902bd5473
commit 6351ac63d2
1 changed files with 20 additions and 3 deletions
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23
src/stl/posix.rs
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@ -41,7 +41,7 @@ use {
io::Result as IOResult, io::Result as IOResult,
rc::Rc, rc::Rc,
fs::{ fs::{
File, OpenOptions File, OpenOptions, canonicalize,
}, },
path::Path, path::Path,
process::{ process::{
@ -715,7 +715,7 @@ fn fg_callback(
const CD_DOCSTRING: &str = const CD_DOCSTRING: &str =
"Expects 1 argument (a string). Changes to a new directory"; "Expects 1 argument (a string). Changes to a new directory";
fn cd_callback(ast: &Seg, _syms: &mut SymTable) -> Result<Ctr, Traceback> { fn cd_callback(ast: &Seg, syms: &mut SymTable) -> Result<Ctr, Traceback> {
if let Ctr::String(ref dir) = *ast.car { if let Ctr::String(ref dir) = *ast.car {
let dirp = Path::new(dir); let dirp = Path::new(dir);
if let Err(s) = set_current_dir(dirp) { if let Err(s) = set_current_dir(dirp) {
@ -723,7 +723,24 @@ fn cd_callback(ast: &Seg, _syms: &mut SymTable) -> Result<Ctr, Traceback> {
("cd", s.to_string()) ("cd", s.to_string())
.into())) .into()))
} else { } else {
Ok(Ctr::None) if let Ok(abs) = canonicalize(dirp) {
syms.insert(
String::from("PWD"),
Symbol::from_ast(
&String::from("PWD"),
&String::from("current working directory"),
&Seg::from_mono(Box::new(
Ctr::String(abs.to_string_lossy().into()))),
None,
));
// Run configurable user function
Ok(Ctr::None)
} else {
Err(start_trace(
("cd", "cannot make absolute path").into()))
}
} }
} else { } else {
Err(start_trace( Err(start_trace(