run-tests: replace '/dev/null' with os.devnull for Windows
Many of the *.py tests were dying on:
File "c:\Users\Matt\projects\hg\hgdemandimport\tracing.py", line 27, in log
_pipe = open(os.environ['HGCATAPULTSERVERPIPE'], 'w', 1)
IOError: [Errno 2] $ENOENT$: '/dev/null'
--- a/tests/run-tests.py Mon Aug 27 09:13:58 2018 -0700
+++ b/tests/run-tests.py Wed Aug 29 23:39:58 2018 -0400
@@ -1072,7 +1072,7 @@
env["HGHOSTNAME"] = "test-hostname"
env['HGIPV6'] = str(int(self._useipv6))
if 'HGCATAPULTSERVERPIPE' not in env:
- env['HGCATAPULTSERVERPIPE'] = '/dev/null'
+ env['HGCATAPULTSERVERPIPE'] = os.devnull
extraextensions = []
for opt in self._extraconfigopts:
@@ -1390,7 +1390,7 @@
script.append(b'alias pwd="pwd -W"\n')
hgcatapult = os.getenv('HGCATAPULTSERVERPIPE')
- if hgcatapult and hgcatapult != '/dev/null':
+ if hgcatapult and hgcatapult != os.devnull:
# 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