Add windows support?

[ysimonson]

Not sure of how big of a lift windows support would be, but it's worth giving a go once #123 is in, since github has windows runners.

[pangguoming]

i compile it with windows already , and i got exe file , it works good

[ysimonson]

Thanks @pangguoming! Do you have instructions for how you did it? E.g. did you use WSL?

[kooshi]

I also just compiled the wikipedia example on Windows with little issue, both with and without WSL2.
I did 3 things:

• Installed CMake, though this was my first experiment, and I'm not sure it was necessary

• Installed LLVM which allowed the rocksdb dependency to be compiled, thus completing the build of indradb itself

Then to get indradb-wikipedia to finish compiling, I needed to change the call to libc::kill in drop in main.rs
to
self.child.kill().unwrap();

I ran the build scripts in the makefile by hand, but chocolatey apparently has a package for make too, so someone could use that if they wanted.

[ysimonson]

Nice, thank you for the detailed instructions @kooshi! Sounds like windows support for IndraDB itself is in good shape. At some point I'll try to make a CI target for this.

For wikipedia-example note that it's using libc::kill to gracefully shutdown the server. Calling self.child.kill() will force shutdown the server, potentially leaving some changes unpersisted. I also don't know whether there's a risk with RocksDB databases getting in a bad internal state if, e.g. they were in the middle of compacting when terminated.

I've opened a ticket to address this: indradb/wikipedia-example#18