run testrunner.pl under WSL1

[qyb]

Because netstat cannot run properly in WSL1 (see: microsoft/WSL#2249), testrunner.pl wouldn't check master started and fail.

I have written a simple script to fake expected netstat behavior:

/mnt/c/Windows/system32/netstat.exe -an | sed -e 's/LISTENING/LISTEN/' -e 's/  TCP/tcp 0 0/'

Does anyone work in WSL1 environment? I thought it might be helpful.

[elliefm]

Is netstat/cassandane the only part of Cyrus that doesn't currently work under WSL1?

I don't know much about WSL, but I'm a little surprised Cyrus works at all... we haven't spent any effort targeting it (neither 1 nor 2).

Are you actually running Cyrus for real, with real mailboxes etc, under WSL1? Or just experimenting with it?

[qyb]

I run our production server by Ubuntu LTS, and use WSL1 as the primary development environment. I tested the new features such as JMAP, xapian-cjkwords in WSL1 and pushed them to prod-env.

In the recent 2 months JMAP app developing experience, all things run well except the annoying netstat problem.

[qyb]

I found that in WSL1 environment it needs --with-mmap=nommap configuration because of microsoft/WSL#902