untildify/
lib.rs

1use regex::Regex;
2use std::env;
3use std::path::PathBuf;
4
5/// Convert a tilde path to an absolute path: ~/Desktop → /Users/sathish/Desktop
6///
7/// Example
8///
9/// ```
10/// use untildify::untildify;
11///
12/// fn main() {
13///    println!("Untildify : {}", untildify::untildify("~/Desktop")); // prints /Users/<user_name>/Desktop
14///    println!("Untildify : {}", untildify("~/a/b/c/d/e")); // prints "/User/Untildify/a/b/c/d/e"
15///    println!("Untildify : {}", untildify("~/")); // prints "/User/Untildify/"
16/// }
17/// ```
18
19pub fn untildify(input_path: &str) -> String {
20    if input_path.is_empty() {
21        return String::from(input_path);
22    }
23    return match get_host_dir() {
24        Some(path) => {
25            let host_dir = path.to_str().unwrap();
26            let re = Regex::new(r"^~([/\w.]+)").unwrap();
27            match re.captures(input_path) {
28                Some(captures) => {
29                    return format!("{}{}", host_dir, &captures[1]);
30                }
31                None => String::from(input_path),
32            }
33        }
34        None => String::from(input_path),
35    };
36}
37
38#[cfg(any(unix, target_os = "redox"))]
39fn get_host_dir() -> Option<PathBuf> {
40    #[allow(deprecated)]
41    env::home_dir()
42}
43
44#[cfg(test)]
45mod tests {
46    use crate::untildify;
47    use std::env;
48    use std::path::Path;
49
50    #[test]
51    fn test_returns_untildfyed_string() {
52        env::remove_var("HOME");
53
54        let home = Path::new("/User/Untildify");
55        env::set_var("HOME", home.as_os_str());
56
57        assert_eq!(untildify("~/Desktop"), "/User/Untildify/Desktop");
58        assert_eq!(untildify("~/a/b/c/d/e"), "/User/Untildify/a/b/c/d/e");
59        assert_eq!(untildify("~/"), "/User/Untildify/");
60    }
61
62    #[test]
63    fn test_returns_empty_string() {
64        env::remove_var("HOME");
65
66        let home = Path::new("/User/Untildify");
67        env::set_var("HOME", home.as_os_str());
68
69        assert_eq!(untildify("Desktop"), "Desktop");
70        assert_eq!(untildify(""), "");
71        assert_eq!(untildify("/"), "/");
72        assert_eq!(untildify("~/Desktop/~/Code"), "/User/Untildify/Desktop/");
73    }
74
75    #[test]
76    fn test_with_dot_folders() {
77        env::remove_var("HOME");
78
79        let home = Path::new("/User/Untildify");
80        env::set_var("HOME", home.as_os_str());
81
82        assert_eq!(untildify("~/.ssh/id_rsa"), "/User/Untildify/.ssh/id_rsa");
83    }
84}
untildify/lib.rs

untildify/
lib.rs
