Mountain/ProcessManagement/NodeResolver/TryAsdf.rs
1
2//! asdf shim lookup. The shim resolves the active `.tool-versions` entry on
3//! every call.
4
5use std::path::PathBuf;
6
7use crate::ProcessManagement::NodeResolver::{NodeExecutableName, NodeSource, ResolvedNode};
8
9pub fn Fn() -> Option<ResolvedNode::Struct> {
10 let AsdfDataDir = std::env::var("ASDF_DATA_DIR").ok().or_else(|| {
11 std::env::var("HOME")
12 .ok()
13 .map(|H| PathBuf::from(H).join(".asdf").to_string_lossy().into_owned())
14 })?;
15
16 let ShimCandidate = PathBuf::from(&AsdfDataDir).join("shims").join(NodeExecutableName::Fn());
17
18 if ShimCandidate.exists() {
19 return Some(ResolvedNode::Struct { Path:ShimCandidate, Source:NodeSource::Enum::Asdf });
20 }
21
22 None
23}