forked from Mirrors/flatpak-builder
tests: Fix race condition in tmp webserver
I was seeing this when trying to run flatpak's tests in ostree's CI: https://github.com/ostreedev/ostree/pull/824 The race here is that the python process can still be writing to the output while sed is reading it, and hence we'll find a difference on the next line. Fix this by making a tmp copy of the file, which then both sed and cmp will read consistently. I'm not *entirely* sure this will fix the problem as I couldn't easily reproduce the race locally, but I believe it at least fixes *a* race.tingping/wmclass
parent
1a49029f9d
commit
48b5dd5e7b
|
@ -10,10 +10,16 @@ env PYTHONUNBUFFERED=1 setsid python -m SimpleHTTPServer 0 >${test_tmpdir}/httpd
|
|||
child_pid=$!
|
||||
|
||||
for x in $(seq 50); do
|
||||
sed -e 's,Serving HTTP on 0.0.0.0 port \([0-9]*\) \.\.\.,\1,' < ${test_tmpdir}/httpd-output > ${test_tmpdir}/httpd-port
|
||||
if ! cmp ${test_tmpdir}/httpd-output ${test_tmpdir}/httpd-port 1>/dev/null; then
|
||||
# Snapshot the output
|
||||
cp ${test_tmpdir}/httpd-output{,.tmp}
|
||||
# If it's non-empty, see whether it matches our regexp
|
||||
if test -s ${test_tmpdir}/httpd-output.tmp; then
|
||||
sed -e 's,Serving HTTP on 0.0.0.0 port \([0-9]*\) \.\.\.,\1,' < ${test_tmpdir}/httpd-output.tmp > ${test_tmpdir}/httpd-port
|
||||
if ! cmp ${test_tmpdir}/httpd-output.tmp ${test_tmpdir}/httpd-port 1>/dev/null; then
|
||||
# If so, we've successfully extracted the port
|
||||
break
|
||||
fi
|
||||
fi
|
||||
sleep 0.1
|
||||
done
|
||||
port=$(cat ${test_tmpdir}/httpd-port)
|
||||
|
|
Loading…
Reference in New Issue