From 064b7b3dbf4277b9c57add479a478386504fc0d2 Mon Sep 17 00:00:00 2001
From: "Pawel Hajdan, Jr" <phajdan.jr@gentoo.org>
Date: Mon, 10 Jul 2017 22:28:50 +0200
Subject: stabilization-candidates: retry network errors

---
 common.py                   | 19 +++++++++++++++++++
 stabilization-candidates.py | 26 +++++++++++++++++---------
 2 files changed, 36 insertions(+), 9 deletions(-)

diff --git a/common.py b/common.py
index 89e4996..8e0c14c 100644
--- a/common.py
+++ b/common.py
@@ -1,10 +1,12 @@
 # Copyright 2012 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
 
+import functools
 import io
 import datetime
 import getpass
 import re
+import time
 
 import portage
 
@@ -17,6 +19,23 @@ def chunks(iterable, length):
 		yield iterable[i:i + length]
 
 
+def retry(ExceptionToCheck, tries=4, delay=3, backoff=2):
+	def deco_retry(f):
+		@functools.wraps(f)
+		def f_retry(*args, **kwargs):
+			mtries, mdelay = tries, delay
+			while mtries > 1:
+				try:
+					return f(*args, **kwargs)
+				except ExceptionToCheck:
+					time.sleep(mdelay)
+					mtries -= 1
+					mdelay *= backoff
+			return f(*args, **kwargs)
+		return f_retry
+	return deco_retry
+
+
 # Snippet from http://bugs.python.org/issue9584
 def expand_braces(orig):
 	r = r'.*(\{.+?[^\\]\})'
diff --git a/stabilization-candidates.py b/stabilization-candidates.py
index 2537ab4..0cedac4 100755
--- a/stabilization-candidates.py
+++ b/stabilization-candidates.py
@@ -7,6 +7,7 @@ import optparse
 import os.path
 import random
 import re
+import socket
 import subprocess
 import xmlrpc.client
 
@@ -14,7 +15,7 @@ from portage.package.ebuild.getmaskingstatus import getmaskingstatus
 from portage.xml.metadata import MetaDataXML
 import portage.versions
 
-from common import login
+from common import login, retry
 
 if __name__ == "__main__":
 	parser = optparse.OptionParser()
@@ -139,19 +140,26 @@ if __name__ == "__main__":
 			continue
 
 		# Do not risk trying to stabilize a package with known bugs.
-		params = {}
-		params['Bugzilla_token'] = login_data['token']
-		params['summary'] = cp
-		bugs = [x for x in bugzilla.Bug.search(params)['bugs'] if x['is_open'] and x['severity'] not in ['enhancement', 'QA']]
+		@retry(socket.error)
+		def get_package_bugs():
+			params = {}
+			params['Bugzilla_token'] = login_data['token']
+			params['summary'] = cp
+			return [x for x in bugzilla.Bug.search(params)['bugs']
+				if x['is_open'] and x['severity'] not in ['enhancement', 'QA']]
+		bugs = get_package_bugs()
 		if bugs:
 			print('has bugs')
 			continue
 
 		# Protection against filing a stabilization bug twice.
-		params = {}
-		params['Bugzilla_token'] = login_data['token']
-		params['summary'] = best_candidate
-		bugs = bugzilla.Bug.search(params)['bugs']
+		@retry(socket.error)
+		def get_package_bugs():
+			params = {}
+			params['Bugzilla_token'] = login_data['token']
+			params['summary'] = best_candidate
+			return bugzilla.Bug.search(params)['bugs']
+		bugs = get_package_bugs()
 		if bugs:
 			print('version has bugs')
 			continue
-- 
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