be more robust when removing download artifacts and remove bogus raise statement

diff --git a/src/etc/snapshot.py b/src/etc/snapshot.py
index e7057defd7750951a85e7f662811818d3900c1e5..99193d905f87fdabb5bdaa98d54fa9093ae2765b 100644 (file)
--- a/src/etc/snapshot.py
+++ b/src/etc/snapshot.py
@@ -148,8 +148,11 @@ def get_url_to_file(u,f):
         returncode = subprocess.call(["wget", "-O", tmpf, u])
 
     if returncode != 0:
-        os.unlink(tmpf)
-        raise
+        try:
+            os.unlink(tmpf)
+        except OSError as e:
+            pass
+        raise Exception("failed to fetch url")
     os.rename(tmpf, f)
 
 def snap_filename_hash_part(snap):