dedup

Signed-off-by: Lars Wirzenius <liw@liw.fi>
Sponsored-by: author

1 files changed, 19 insertions, 1 deletions

diff --git a/src/main.rs b/src/main.rs
index a1e2a8a..bf1e801 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -4,7 +4,15 @@ fn main() -> anyhow::Result<()> {
 }
 
 fn pathdedup(path: &str) -> String {
-    path.into()
+    let mut elements: Vec<&str> = vec![];
+
+    for e in path.split(':') {
+        if !elements.contains(&e) {
+            elements.push(e);
+        }
+    }
+
+    elements.join(".")
 }
 
 #[cfg(test)]
@@ -15,4 +23,14 @@ mod test {
     fn empty_string() {
         assert_eq!(pathdedup(""), "");
     }
+
+    #[test]
+    fn single_element() {
+        assert_eq!(pathdedup("/foo"), "/foo");
+    }
+
+    #[test]
+    fn duplicate_elements() {
+        assert_eq!(pathdedup("/foo:/foo"), "/foo");
+    }
 }