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feat(tvix/eval): Implement builtins.pathExists

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Change-Id: Ife8a690e9036868964771893ab29a9ae3a2d2365
Reviewed-on: https://cl.tvl.fyi/c/depot/+/6919
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
This commit is contained in:
Griffin Smith 2022-10-10 00:03:17 -04:00 • committed by grfn
parent 273ba73754
commit 0b8a967aca
3 changed files with 10 additions and 6 deletions
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13
tvix/eval/src/builtins/impure.rs
View file

@ -15,10 +15,11 @@ use crate::{
};
fn impure_builtins() -> Vec<Builtin> {
vec![Builtin::new(
"readDir",
&[true],
|args: Vec<Value>, vm: &mut VM| {
vec![
Builtin::new("pathExists", &[true], |args: Vec<Value>, vm: &mut VM| {
Ok(super::coerce_value_to_path(&args[0], vm)?.exists().into())
}),
Builtin::new("readDir", &[true], |args: Vec<Value>, vm: &mut VM| {
let path = super::coerce_value_to_path(&args[0], vm)?;
let mk_err = |err: io::Error| ErrorKind::IO {
path: Some(path.clone()),
@ -50,8 +51,8 @@ fn impure_builtins() -> Vec<Builtin> {
);
}
Ok(Value::attrs(NixAttrs::from_map(res)))
},
)]
}),
]
}
/// Return all impure builtins, that is all builtins which may perform I/O