From cd6df6935f6c5432a9c46c702563939be8880f2c Mon Sep 17 00:00:00 2001
From: Aleksey Kladov <aleksey.kladov@gmail.com>
Date: Tue, 13 Jul 2021 15:02:29 +0300
Subject: [PATCH] minor: make sure that project_root works correctly

---
 crates/sourcegen/src/lib.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/crates/sourcegen/src/lib.rs b/crates/sourcegen/src/lib.rs
index 9197dbed8f6..2d280663426 100644
--- a/crates/sourcegen/src/lib.rs
+++ b/crates/sourcegen/src/lib.rs
@@ -191,5 +191,7 @@ fn normalize_newlines(s: &str) -> String {
 
 pub fn project_root() -> PathBuf {
     let dir = env!("CARGO_MANIFEST_DIR");
-    PathBuf::from(dir).parent().unwrap().parent().unwrap().to_owned()
+    let res = PathBuf::from(dir).parent().unwrap().parent().unwrap().to_owned();
+    assert!(res.join("bors.toml").exists());
+    res
 }