Use project-relative path when calculating gitlab message fingerprint

crates/ruff_linter/src/message/gitlab.rs

@@ -82,12 +82,12 @@ impl Serialize for SerializedMessages<'_> {
                 |project_dir| relativize_path_to(message.filename(), project_dir),
             );
 
-            let mut message_fingerprint = fingerprint(message, 0);
+            let mut message_fingerprint = fingerprint(message, &path, 0);
 
             // Make sure that we do not get a fingerprint that is already in use
             // by adding in the previously generated one.
             while fingerprints.contains(&message_fingerprint) {
-                message_fingerprint = fingerprint(message, message_fingerprint);
+                message_fingerprint = fingerprint(message, &path, message_fingerprint);
             }
             fingerprints.insert(message_fingerprint);
 
@@ -109,20 +109,20 @@ impl Serialize for SerializedMessages<'_> {
 }
 
 /// Generate a unique fingerprint to identify a violation.
-fn fingerprint(message: &Message, salt: u64) -> u64 {
+fn fingerprint(message: &Message, project_path: &str, salt: u64) -> u64 {
     let Message {
         kind,
         range: _,
         fix: _fix,
-        file,
+        file: _,
         noqa_offset: _,
     } = message;
 
     let mut hasher = DefaultHasher::new();
 
     salt.hash(&mut hasher);
     kind.name.hash(&mut hasher);
-    file.name().hash(&mut hasher);
+    project_path.hash(&mut hasher);
 
     hasher.finish()
 }