envfile/
lib.rs

1use std::{
2    collections::HashMap,
3    fs::File,
4    io::{BufRead, BufReader},
5};
6
7pub struct EnvFile {
8    pub path: String,
9    pub lines: HashMap<String, String>,
10}
11
12#[allow(dead_code)]
13pub fn load(path: &str) -> EnvFile {
14    let file = File::open(path).unwrap();
15    let reader = BufReader::new(file);
16    let lines = reader
17        .lines()
18        .map(|line| line.unwrap())
19        .filter(|line| !line.starts_with('#'))
20        .map(|line| {
21            let mut parts = line.splitn(2, '=');
22            let key = parts.next().unwrap().trim().to_string();
23            let value = parts.next().unwrap().trim().to_string();
24            (key, value)
25        })
26        .collect();
27
28    EnvFile {
29        path: path.to_string(),
30        lines,
31    }
32}
33
34impl EnvFile {
35    pub fn get(&self, key: &str) -> Option<String> {
36        self.lines.get(key).cloned()
37    }
38}
39
40#[cfg(test)]
41mod tests {
42    use super::*;
43    use std::{env, io::Write};
44
45    #[test]
46    fn test_load() {
47        let path = env::current_dir().unwrap().join("test.env");
48        let _ = std::fs::remove_file(&path);
49        let mut file = File::create(&path).unwrap();
50        file.write_all(
51            b"TEST=123
52TEST2=456",
53        )
54        .unwrap();
55
56        let env_file = load(path.to_str().unwrap());
57        assert_eq!(env_file.get("TEST"), Some("123".to_string()));
58        assert_eq!(env_file.get("TEST2"), Some("456".to_string()));
59    }
60}
envfile/lib.rs

envfile/
lib.rs
