From 5fdb00df9a070e79c82689db80764c76ba499075 Mon Sep 17 00:00:00 2001
From: Frank Winklmeier <frank.winklmeier@cern.ch>
Date: Wed, 22 Apr 2020 09:06:27 +0000
Subject: [PATCH] Athena: Run flake8 as a single process

To investigate the frequent flake8 timeouts seen during nightly builds, limit the number of parallel flake8 processes to one.
---
 Projects/Athena/CMakeLists.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Projects/Athena/CMakeLists.txt b/Projects/Athena/CMakeLists.txt
index 01908b169c7..510fbec37f1 100644
--- a/Projects/Athena/CMakeLists.txt
+++ b/Projects/Athena/CMakeLists.txt
@@ -41,7 +41,7 @@ mark_as_advanced( TDAQ-COMMON_ATROOT TDAQ_PROJECT_NAME
    TDAQ_ATROOT )
 
 # Configure flake8:
-set( ATLAS_FLAKE8 "flake8_atlas --select ATL,F,E7,E9,W6 --enable-extension ATL902 --extend-ignore E701,E702,E741"
+set( ATLAS_FLAKE8 "flake8_atlas -j 1 --select ATL,F,E7,E9,W6 --enable-extension ATL902 --extend-ignore E701,E702,E741"
    CACHE STRING "Default flake8 command" )
 
 set( ATLAS_PYTHON_CHECKER "${ATLAS_FLAKE8} --filterFiles AthenaConfiguration"
-- 
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