1 use std::{fs, process};
3 fn load_config_file() -> Vec<(String, Option<String>)> {
4 fs::read_to_string("config.txt")
7 .map(|line| if let Some((line, _comment)) = line.split_once('#') { line } else { line })
8 .map(|line| line.trim())
9 .filter(|line| !line.is_empty())
11 if let Some((key, val)) = line.split_once('=') {
12 (key.trim().to_owned(), Some(val.trim().to_owned()))
14 (line.to_owned(), None)
20 pub(crate) fn get_bool(name: &str) -> bool {
21 let values = load_config_file()
23 .filter(|(key, _)| key == name)
26 if values.is_empty() {
29 if values.iter().any(|val| val.is_some()) {
30 eprintln!("Boolean config `{}` has a value", name);
37 pub(crate) fn get_value(name: &str) -> Option<String> {
38 let values = load_config_file()
40 .filter(|(key, _)| key == name)
43 if values.is_empty() {
45 } else if values.len() == 1 {
46 if values[0].is_none() {
47 eprintln!("Config `{}` missing value", name);
50 values.into_iter().next().unwrap()
52 eprintln!("Config `{}` given multiple values: {:?}", name, values);