exocore_core/utils/
path.rs

1use std::path::{Component, Path, PathBuf};
2
3pub fn child_to_abs_path<P: AsRef<Path>, C: AsRef<Path>>(parent: P, child: C) -> PathBuf {
4    let parent_path = parent.as_ref();
5    let child_path = child.as_ref();
6
7    if child_path.is_absolute() {
8        return child_path.to_path_buf();
9    }
10
11    let parent_path_buf = PathBuf::from(parent_path);
12    clean_path(parent_path_buf.join(child_path))
13}
14
15pub fn child_to_relative_path<P: AsRef<Path>, C: AsRef<Path>>(parent: P, child: C) -> PathBuf {
16    child
17        .as_ref()
18        .strip_prefix(parent.as_ref())
19        .unwrap_or_else(|_| child.as_ref())
20        .to_owned()
21}
22
23pub fn clean_path<P: AsRef<Path>>(path: P) -> PathBuf {
24    let path = path.as_ref();
25    let mut out = PathBuf::new();
26
27    for (i, component) in path.components().enumerate() {
28        match component {
29            Component::CurDir if i > 0 => {}
30            other => out.push(other),
31        }
32    }
33
34    out
35}
36
37#[cfg(test)]
38mod tests {
39    use super::*;
40
41    #[test]
42    fn test_clean_path() {
43        assert_eq!(clean_path("./test/./test"), PathBuf::from("./test/test"));
44        assert_eq!(clean_path("./test/././test"), PathBuf::from("./test/test"));
45        assert_eq!(clean_path("/test/test"), PathBuf::from("/test/test"));
46    }
47
48    #[test]
49    fn to_absolute_path() {
50        assert_eq!(
51            child_to_abs_path("/parent", "child"),
52            PathBuf::from("/parent/child")
53        );
54        assert_eq!(
55            child_to_abs_path("/parent", "./child"),
56            PathBuf::from("/parent/child")
57        );
58        assert_eq!(
59            child_to_abs_path("/parent", "././child"),
60            PathBuf::from("/parent/child")
61        );
62        assert_eq!(child_to_abs_path("/", "././child"), PathBuf::from("/child"));
63    }
64
65    #[test]
66    fn to_relative_path() {
67        assert_eq!(
68            child_to_relative_path("/parent", "/parent/child"),
69            PathBuf::from("child")
70        );
71        assert_eq!(
72            child_to_relative_path("/bleh", "/parent/child"),
73            PathBuf::from("/parent/child")
74        );
75    }
76}
exocore_core/utils/path.rs

exocore_core/utils/
path.rs
