feat(registry): print more error info

Previously, only the root error's Display was
printed. Now we print Display of the root and
every parent error's as well.

registry/CHANGELOG.md

@@ -5,6 +5,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [Unreleased]
+### Changed
+- Print more error info by @daimond113
+
 ## [0.2.0] - 2025-02-22
 ### Added
 - Support deprecating and yanking packages by @daimond113

registry/src/auth/github.rs

@@ -1,6 +1,6 @@
 use crate::{
 	auth::{get_token_from_req, AuthImpl, UserId},
-	error::ReqwestErrorExt,
+	error::{display_error, ReqwestErrorExt},
 };
 use actix_web::{dev::ServiceRequest, Error as ActixError};
 use reqwest::StatusCode;
@@ -46,14 +46,14 @@ impl AuthImpl for GitHubAuth {
 				}
 				Err(_) => {
 					tracing::error!(
-						"failed to get user: {}",
-						response.into_error().await.unwrap_err()
+						"failed to get user info: {}",
+						display_error(response.into_error().await.unwrap_err())
 					);
 					return Ok(None);
 				}
 			},
 			Err(e) => {
-				tracing::error!("failed to get user: {e}");
+				tracing::error!("failed to send user info request: {}", display_error(e));
 				return Ok(None);
 			}
 		};
@@ -61,7 +61,7 @@ impl AuthImpl for GitHubAuth {
 		let user_id = match response.json::<UserResponse>().await {
 			Ok(resp) => resp.user.id,
 			Err(e) => {
-				tracing::error!("failed to get user: {e}");
+				tracing::error!("failed to parse user info response: {}", display_error(e));
 				return Ok(None);
 			}
 		};

registry/src/error.rs

@@ -1,6 +1,7 @@
 use actix_web::{body::BoxBody, HttpResponse, ResponseError};
 use pesde::source::git_index::errors::{ReadFile, RefreshError, TreeError};
 use serde::Serialize;
+use std::error::Error;
 use thiserror::Error;
 
 #[derive(Debug, Error)]
@@ -66,7 +67,7 @@ impl ResponseError for RegistryError {
 				error: format!("archive is invalid: {e}"),
 			}),
 			e => {
-				tracing::error!("unhandled error: {e:?}");
+				tracing::error!("unhandled error: {}", display_error(e));
 				HttpResponse::InternalServerError().finish()
 			}
 		}
@@ -87,3 +88,20 @@ impl ReqwestErrorExt for reqwest::Response {
 		}
 	}
 }
+
+pub fn display_error<E: Error>(err: E) -> String {
+	let mut causes = vec![];
+	let mut source = err.source();
+	while let Some(src) = source {
+		causes.push(format!("\t- {src}"));
+		source = src.source();
+	}
+	format!(
+		"{err}{}",
+		if causes.is_empty() {
+			"".into()
+		} else {
+			format!("\n{}", causes.join("\n"))
+		}
+	)
+}