2 files changed, 6 insertions, 1 deletions

diff --git a/crates/ra_vfs/Cargo.toml b/crates/ra_vfs/Cargo.toml
index 383381d2a..01109a9a7 100644
--- a/crates/ra_vfs/Cargo.toml
+++ b/crates/ra_vfs/Cargo.toml
@@ -10,7 +10,7 @@ relative-path = "0.4.0"
 rustc-hash = "1.0"
 crossbeam-channel = "0.3.5"
 log = "0.4.6"
-notify = "4.0.7"
+notify = "4.0.9"
 drop_bomb = "0.1.0"
 parking_lot = "0.7.0"
 
diff --git a/crates/ra_vfs/src/lib.rs b/crates/ra_vfs/src/lib.rs
index 6b4eb6842..3805be570 100644
--- a/crates/ra_vfs/src/lib.rs
+++ b/crates/ra_vfs/src/lib.rs
@@ -94,6 +94,7 @@ impl Roots {
         let mut roots = Arena::default();
         // A hack to make nesting work.
         paths.sort_by_key(|it| Reverse(it.as_os_str().len()));
+        paths.dedup();
         for (i, path) in paths.iter().enumerate() {
             let nested_roots = paths[..i]
                 .iter()
@@ -181,6 +182,10 @@ impl Vfs {
         None
     }
 
+    pub fn num_roots(&self) -> usize {
+        self.roots.len()
+    }
+
     pub fn load(&mut self, path: &Path) -> Option<VfsFile> {
         if let Some((root, rel_path, file)) = self.find_root(path) {
             return if let Some(file) = file {