# HG changeset patch
# User Pulkit Goyal <pulkit@yandex-team.ru>
# Date 1535391572 -10800
# Node ID a235ee4cfc1c6f74147043bc29171f68b01b39d5
# Parent  6b81d2ff118f745c0cdc80818065f2a4a13bdfe3
run-tests: don't append rtendtracing logs if pipe is /dev/null

If HGCATAPULTSERVERPIPE is not set, we set it to /dev/null, so we need to make
sure the value is not /dev/null before appending logs.

This fixes some of test-run-tests.t failures.

Differential Revision: https://phab.mercurial-scm.org/D4401

diff -r 6b81d2ff118f -r a235ee4cfc1c tests/run-tests.py
--- a/tests/run-tests.py	Mon Aug 27 04:31:09 2018 +0530
+++ b/tests/run-tests.py	Mon Aug 27 20:39:32 2018 +0300
@@ -1389,7 +1389,8 @@
         if os.getenv('MSYSTEM'):
             script.append(b'alias pwd="pwd -W"\n')
 
-        if os.getenv('HGCATAPULTSERVERPIPE'):
+        hgcatapult = os.getenv('HGCATAPULTSERVERPIPE')
+        if hgcatapult and hgcatapult != '/dev/null':
             # Kludge: use a while loop to keep the pipe from getting
             # closed by our echo commands. The still-running file gets
             # reaped at the end of the script, which causes the while