Add native Windows build script

[Hoverbear]

What problem does this PR solve?

Adds native Windows build script for developer usage.

It's possible to build pd in the WSL (Linux for Windows) but it's not possible to run it due to memmap differences that are known and reported. (etcd-io/bbolt#144)

This script requires only Go, Git, and powershell to be available on the machine as far as I can tell. (I'm using a pretty basic windows machine)

Here's a demo running pd on native Windows powershell, tikv on wsl, and the client-rust on wsl as well:

Here's the --version output:

We shouldn't announce/advertise this though because we haven't done any serious benchmarking or support testing. This is simply to enable Windows users to develop on pd/tikv without needing Docker.

What is changed and how it works?

A build.ps1 file was added since a minimal windows environment does not include make (nmake is available if you use the C++ dev tools but it's not fully compatible, we might try to use it and have errors later).

A Windows user using Powershell can invoke this with ./build and will find familiar binaries at bin/*. They'll see from the script when they run it that these are created:

Check List

Tests

• No code

Code changes

Side effects

• Increased code complexity

Related changes

• Need to be included in the release notes

[nrc]

I don't think I can review this sorry, I don't know the powershell syntax, nor PD.

[Hoverbear]

Ok, sorry. :)

[Hoverbear]

@disksing I don't really understand how this PR is causing the CI to be red. Could you PTAL?

[disksing]

@Hoverbear Tests are not stable. Not your fault :)

[codecov-io]

Codecov Report

Merging #1540 into master will increase coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1540      +/-   ##
==========================================
+ Coverage   67.82%   67.83%   +0.01%     
==========================================
  Files         159      159              
  Lines       15777    15777              
==========================================
+ Hits        10701    10703       +2     
+ Misses       4117     4106      -11     
- Partials      959      968       +9

Impacted Files	Coverage Δ
pkg/tempurl/tempurl.go	57.14% <0%> (-14.29%)	⬇️
server/schedulers/shuffle_hot_region.go	64.1% <0%> (-6.42%)	⬇️
server/etcd_kv.go	65.95% <0%> (-4.26%)	⬇️
server/namespace_cluster.go	81.81% <0%> (-3.9%)	⬇️
server/schedule/basic_cluster.go	88.67% <0%> (-3.78%)	⬇️
server/core/kv.go	73.91% <0%> (-1.45%)	⬇️
server/grpc_service.go	58.79% <0%> (-1.29%)	⬇️
server/leader.go	82.04% <0%> (-1.23%)	⬇️
server/option.go	90.41% <0%> (-0.84%)	⬇️
server/schedulers/hot_region.go	75.45% <0%> (-0.74%)	⬇️
... and 8 more

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[kennytm]

Interestingly the pd-server.exe can be executed directly inside WSL 1, so you don't need to launch PowerShell to run PD.

[Hoverbear]

Indeed! You can run it directly in wsl2 too. :) You could also launch it from CMD.

[kennytm]

I believe etcd-io/bbolt#144 is already fixed in WSL 2 so we could keep using the Linux version there 😅

[Hoverbear]

Sure!