From 1d5ad9c185acb4de2908c5bb27121baf99e49d5f Mon Sep 17 00:00:00 2001
From: Yujia Qiao <rapiz3142@gmail.com>
Date: Sun, 19 Dec 2021 14:17:16 +0800
Subject: [PATCH] fix: add error context

---
 src/transport/tls.rs | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/transport/tls.rs b/src/transport/tls.rs
index d6a246f..20b14ab 100644
--- a/src/transport/tls.rs
+++ b/src/transport/tls.rs
@@ -32,8 +32,11 @@ impl Transport for TlsTransport {
 
         let connector = match config.trusted_root.as_ref() {
             Some(path) => {
-                let s = fs::read_to_string(path).await?;
-                let cert = Certificate::from_pem(s.as_bytes())?;
+                let s = fs::read_to_string(path)
+                    .await
+                    .with_context(|| "Failed to read the `tls.trusted_root`")?;
+                let cert = Certificate::from_pem(s.as_bytes())
+                    .with_context(|| "Failed to read certificate from `tls.trusted_root`")?;
                 let connector = native_tls::TlsConnector::builder()
                     .add_root_certificate(cert)
                     .build()?;