Add build suffix to Windows CI

.github/workflows/windows_ci.yml

@@ -14,9 +14,12 @@ jobs:
       run: |
         $vswhere = "${env:ProgramFiles(x86)}\Microsoft Visual Studio\Installer\vswhere.exe"
         $msbuild = & "$vswhere" -latest -requires Microsoft.Component.MSBuild -find MSBuild\**\Bin\MSBuild.exe | select-object -first 1
+        $buildsuffix = & "Windows\VisualStudio\print_build_suffix.bat"
         $options = @( `
           '-property:Configuration=Release', `
           '-property:Platform=${{ matrix.platform }}', `
+          '-property:ForceImportBeforeCppTargets=Windows\VisualStudio\custom_build.props', `
+          '-property:VER_SUFFIX=$gitsuffix', `
           '-maxcpucount', `
           '-verbosity:minimal' `
         )

Windows/VisualStudio/custom_build.props

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemDefinitionGroup Condition="'$(VER_SUFFIX)' != ''">
+    <ClCompile>
+      <AdditionalOptions>/DIRONWAIL_VER_SUFFIX=\&quot;$(VER_SUFFIX)\&quot; %(AdditionalOptions)</AdditionalOptions>
+    </ClCompile>
+  </ItemDefinitionGroup>
+  <PropertyGroup Condition="'$(BUILD_DIR)' != ''">
+    <OutDir>$(SolutionDir)$(BUILD_DIR)\</OutDir>
+    <IntDir>$(BUILD_DIR)\Out\</IntDir>
+  </PropertyGroup>
+</Project>

Windows/VisualStudio/print_build_suffix.bat

@@ -0,0 +1,10 @@
+@echo off
+::Print build suffix (either -hash or -branch-hash)
+
+for /f %%f in ('git describe --always') do set gitrev=%%f
+for /f %%f in ('git branch --show-current') do set gitbranch=%%f
+if /i "%gitbranch%" == "master" (
+	echo -%gitrev%
+) else (
+	echo -%gitbranch%-%gitrev%
+)