[PATCH] fetch2: Handle errors orruring when building mirror urls

[Richard Purdie <richard.purdie@linuxfoundation.org>]

When we build the mirror urls, its possible an error will occur. If it
does, it should just mean we don't attempt this mirror url. The current
code actually aborts *all* the mirrors, not just the failed url.

This patch catches and logs the exception allowing things to continue.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
---
diff --git a/bitbake/lib/bb/fetch2/__init__.py b/bitbake/lib/bb/fetch2/__init__.py
index 0b256ae..a38cb8f 100644
--- a/bitbake/lib/bb/fetch2/__init__.py
+++ b/bitbake/lib/bb/fetch2/__init__.py
@@ -503,9 +503,18 @@ def build_mirroruris(origud, mirrors, ld):
             newuri = uri_replace(ud, find, replace, replacements, ld)
             if not newuri or newuri in uris or newuri == origud.url:
                 continue
+            try:
+                newud = FetchData(newuri, ld)
+                newud.setup_localpath(ld)
+            except bb.fetch2.BBFetchException as e:
+                logger.debug(1, "Mirror fetch failure for url %s (original url: %s)" % (newuri, origud.url))
+                logger.debug(1, str(e))
+                try:
+                    ud.method.clean(ud, ld)
+                except UnboundLocalError:
+                    pass
+                continue   
             uris.append(newuri)
-            newud = FetchData(newuri, ld)
-            newud.setup_localpath(ld)
             uds.append(newud)
 
             adduri(newuri, newud, uris, uds)