absolutize path common functions

src/utils/path.rs

@@ -0,0 +1,43 @@
+//! # Path
+//!
+//! Path related utilities
+
+use std::path::{Path, PathBuf};
+
+/// ### absolutize
+///
+/// Absolutize target path if relative.
+/// For example:
+///
+/// ```rust
+/// assert_eq!(absolutize(&Path::new("/home/omar"), &Path::new("readme.txt")).as_path(), Path::new("/home/omar/readme.txt"));
+/// assert_eq!(absolutize(&Path::new("/home/omar"), &Path::new("/tmp/readme.txt")).as_path(), Path::new("/tmp/readme.txt"));
+/// ```
+pub fn absolutize(wrkdir: &Path, target: &Path) -> PathBuf {
+    match target.is_absolute() {
+        true => target.to_path_buf(),
+        false => {
+            let mut p: PathBuf = wrkdir.to_path_buf();
+            p.push(target);
+            p
+        }
+    }
+}
+
+#[cfg(test)]
+mod test {
+
+    use super::*;
+
+    #[test]
+    fn absolutize_path() {
+        assert_eq!(
+            absolutize(&Path::new("/home/omar"), &Path::new("readme.txt")).as_path(),
+            Path::new("/home/omar/readme.txt")
+        );
+        assert_eq!(
+            absolutize(&Path::new("/home/omar"), &Path::new("/tmp/readme.txt")).as_path(),
+            Path::new("/tmp/readme.txt")
+        );
+    }
+}