do not run blame on a binary file (earlier out)

Author: Stephan Dilly

asyncgit/src/sync/blame.rs

@@ -58,14 +58,16 @@ pub fn blame_file(
     };
 
     let spec = format!("{}:{}", commit_id.to_string(), file_path);
-    let blame = repo.blame_file(Path::new(file_path), None)?;
+
     let object = repo.revparse_single(&spec)?;
     let blob = repo.find_blob(object.id())?;
 
     if blob.is_binary() {
         return Err(Error::NoBlameOnBinaryFile);
     }
 
+    let blame = repo.blame_file(Path::new(file_path), None)?;
+
     let reader = BufReader::new(blob.content());
 
     let lines: Vec<(Option<BlameHunk>, String)> = reader