Adjust autolabeling

src/github.rs

@@ -777,13 +777,15 @@ impl IssuesEvent {
     pub async fn diff_between(&self, client: &GithubClient) -> anyhow::Result<Option<String>> {
         let (before, after) = if self.action == IssuesAction::Synchronize {
             (
-                self.before.clone().unwrap_or_default(),
-                self.after.clone().unwrap_or_default(),
+                self.before
+                    .clone()
+                    .expect("synchronize has before populated"),
+                self.after.clone().expect("synchronize has after populated"),
             )
         } else if self.action == IssuesAction::Opened {
             (
-                self.base.clone().unwrap_or_default().sha,
-                self.head.clone().unwrap_or_default().sha,
+                self.base.clone().expect("open has base populated").sha,
+                self.head.clone().expect("open has head populated").sha,
             )
         } else {
             return Ok(None);

src/handlers/autolabel.rs

@@ -25,11 +25,11 @@ pub(super) async fn parse_input(
             for line in diff.lines() {
                 // mostly copied from highfive
                 if line.starts_with("diff --git ") {
-                    let parts = line[line.find(" b/").unwrap() + " b/".len()..].split("/");
-                    let path = parts.collect::<Vec<_>>().join("/");
-                    if !path.is_empty() {
-                        files.push(path);
-                    }
+                    files.push(
+                        &line[line.find(" b/").unwrap()..]
+                            .strip_prefix(" b/")
+                            .unwrap(),
+                    );
                 }
             }
             let mut autolabels = Vec::new();