From 70265683f508938d86389a593a58be96ed42dae0 Mon Sep 17 00:00:00 2001
From: Robert Niederreiter <rnix@squarewave.at>
Date: Mon, 22 Apr 2024 10:57:21 +0200
Subject: [PATCH] Output url of file which failed to be fetched

---
 src/mxdev/processing.py | 24 ++++++++++++++----------
 1 file changed, 14 insertions(+), 10 deletions(-)

diff --git a/src/mxdev/processing.py b/src/mxdev/processing.py
index 00f3d87..ce4def6 100644
--- a/src/mxdev/processing.py
+++ b/src/mxdev/processing.py
@@ -5,6 +5,7 @@
 from pathlib import Path
 from urllib import parse
 from urllib import request
+from urllib.error import URLError
 
 import typing
 
@@ -125,16 +126,19 @@ def resolve_dependencies(
                 "it does not exist. Empty file assumed."
             )
     else:
-        with request.urlopen(file_or_url) as fio:
-            process_io(
-                fio,
-                requirements,
-                constraints,
-                package_keys,
-                override_keys,
-                ignore_keys,
-                variety,
-            )
+        try:
+            with request.urlopen(file_or_url) as fio:
+                process_io(
+                    fio,
+                    requirements,
+                    constraints,
+                    package_keys,
+                    override_keys,
+                    ignore_keys,
+                    variety,
+                )
+        except URLError as e:
+            raise Exception(f"Failed to fetch '{file_or_url}': {e}")
 
     if requirements and variety == "r":
         requirements = (