care_parse_ncl/
lib.rs

1use anyhow::{bail, Context, Result};
2use std::path::Path;
3use toml::macros::Deserialize;
4
5pub fn from_file(ncl_path: &Path) -> Result<toml::Table> {
6    let username = whoami::username();
7    let mut hostname = whoami::fallible::hostname()?;
8    hostname.make_ascii_lowercase();
9    let field_path_raw = format!("{username}@{hostname}");
10
11    use nickel_lang_core::{
12        error::report::ErrorFormat, eval::cache::lazy::CBNCache, identifier::LocIdent,
13        pretty::ident_quoted, program::Program as Prog,
14    };
15    let field_path = ident_quoted(&LocIdent::new(field_path_raw));
16    // println!("FIELD: {field_path:?}");
17    use std::io::stderr;
18    let mut prog = Prog::<CBNCache>::new_from_file(&ncl_path, stderr())?;
19    let res_field = prog.parse_field_path(field_path.clone());
20    let Ok(field) = res_field else {
21        prog.report(res_field.unwrap_err(), ErrorFormat::Text);
22        bail!("failed to parse {field_path:?} as Nickel path");
23    };
24    prog.field = field;
25    let res_term = prog.eval_full_for_export();
26    let Ok(term) = res_term else {
27        prog.report(res_term.unwrap_err(), ErrorFormat::Text);
28        bail!("script {ncl_path:?} failed");
29    };
30    let toml = toml::Table::deserialize(term).context("loading Nickel output to TOML")?;
31    Ok(toml)
32}
care_parse_ncl/lib.rs

care_parse_ncl/
lib.rs
