Function normalize_path

atomic-core/src/output/filesystem/paths.rs:40–59

Normalize a path by resolving `.` and `..` components. Unlike `canonicalize()`, this doesn't require the path to exist.

(path: &Path)

///
/// Unlike `canonicalize()`, this doesn't require the path to exist.
pub(crate) fn normalize_path(path: &Path) -> PathBuf {
    use std::path::Component;

    let mut normalized = PathBuf::new();

    for component in path.components() {
        match component {
            Component::Prefix(p) => normalized.push(p.as_os_str()),
            Component::RootDir => normalized.push(component.as_os_str()),
            Component::CurDir => {} // Skip `.`
            Component::ParentDir => {
                // Go up one level, but don't go above root
                normalized.pop();
            }
            Component::Normal(name) => normalized.push(name),
        }
    }

    normalized
}

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