[gnome-continuous-yocto/gnomeostree-3.28-rocko: 1199/8267] bitbake: fetch2/wget: attempt checkstatus again if it fails

[Emmanuele Bassi <ebassi src gnome org>]

commit 312f1a5e74151b75e8f5e0d941c37ecac019245d
Author: Ross Burton <ross burton intel com>
Date:   Thu Jun 30 22:32:24 2016 +0100

    bitbake: fetch2/wget: attempt checkstatus again if it fails
    
    Some services such as SourceForge seem to struggle to keep up under load, with
    the result that over half of the autobuilder checkuri runs fail with
    sourceforge.net "connection timed out".
    
    Attempt to mitigate this by re-attempting once the network operation on failure.
    
    (Bitbake rev: 54b1961551511948e0cbd2ac39f19b39b9cee568)
    
    Signed-off-by: Ross Burton <ross burton intel com>
    Signed-off-by: Richard Purdie <richard purdie linuxfoundation org>

 bitbake/lib/bb/fetch2/wget.py |   12 ++++++++----
 1 files changed, 8 insertions(+), 4 deletions(-)
---
diff --git a/bitbake/lib/bb/fetch2/wget.py b/bitbake/lib/bb/fetch2/wget.py
index d688fd9..6cb22ae 100644
--- a/bitbake/lib/bb/fetch2/wget.py
+++ b/bitbake/lib/bb/fetch2/wget.py
@@ -104,7 +104,7 @@ class Wget(FetchMethod):
 
         return True
 
-    def checkstatus(self, fetch, ud, d):
+    def checkstatus(self, fetch, ud, d, try_again=True):
         import urllib.request, urllib.error, urllib.parse, socket, http.client
         from urllib.response import addinfourl
         from bb.fetch2 import FetchConnectionCache
@@ -278,9 +278,13 @@ class Wget(FetchMethod):
             r.get_method = lambda: "HEAD"
             opener.open(r)
         except urllib.error.URLError as e:
-            # debug for now to avoid spamming the logs in e.g. remote sstate searches
-            logger.debug(2, "checkstatus() urlopen failed: %s" % e)
-            return False
+            if try_again:
+                logger.debug(2, "checkstatus: trying again")
+                return self.checkstatus(fetch, ud, d, False)
+            else:
+                # debug for now to avoid spamming the logs in e.g. remote sstate searches
+                logger.debug(2, "checkstatus() urlopen failed: %s" % e)
+                return False
         return True
 
     def _parse_path(self, regex, s):