test_urls: Print exceptions when validating URLs

Print the HTTP status code and the returned exception when checking
each URL, to better understand what went wrong.

Signed-off-by: Emanuele Aina <emanuele.aina@collabora.com>

scripts/test_urls.py

@@ -13,6 +13,7 @@ from urllib.parse import urlparse
 import urllib3
 import time
 import fnmatch
+import textwrap
 
 EXCLUDE = [
     "*://lavaphabbridge.apertis.org",   #
@@ -87,22 +88,27 @@ for url in urls:
     sys.stdout.flush()
     start = time.perf_counter()
     status = None
+    resp = None
     try:
         resp = requests.head(url, headers=headers, allow_redirects=True, timeout=60, verify=False)
         status = resp.ok
         resp.close()
     except Exception as e:
-        pass
+        e_str = textwrap.indent(str(type(e)) + "\n" + str(e), "  ")
+        print(f"ERROR(1): {url} {resp.status_code if resp else '-'}\n{e_str}")
 
     try:
         # Some servers aren't setup to handle HEAD requests, so check anything
         # that's not got a 200 status code with GET as well.
         if not status:
+            resp = None
             resp = requests.get(url, headers=headers, allow_redirects=True, timeout=60, verify=False)
             status = resp.ok
             resp.close()
     except Exception as e:
         status = False
+        e_str = textwrap.indent(str(type(e)) + "\n" + str(e), "  ")
+        print(f"ERROR(2): {url} {resp.status_code if resp else '-'}\n{e_str}")
     end = time.perf_counter()
 
     if not status: