Add windows job to CI build & test

Author: mortbopet

.github/workflows/build_test.yml

@@ -27,23 +27,31 @@ jobs:
         run: git diff --exit-code
       - name: Checking code style
         run: ./scripts/run-clang-tidy.sh
+
   build:
-    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest]
+        include:
+          - os: ubuntu-latest
+            setup-script: ./scripts/setup-ubuntu.sh
+          - os: windows-latest
+            setup-script: ./scripts/find_vs.ps1
+    runs-on: ${{ matrix.os }}
 
     steps:
       - uses: actions/checkout@v3
         with:
           submodules: recursive
-      - name: Setup Ubuntu
+
+      - name: Build
         run: |
-          ./scripts/setup-ubuntu.sh
+          ${{ matrix.setup-script }}
           mkdir build
-      - name: Run cmake
-        run: |
           cmake --version
           cmake -Bbuild -GNinja -DCMAKE_BUILD_TYPE=Debug -DBUILD_TZ_LIB=ON
-      - name: Build
-        run: ninja -C build
+          ninja -C build
+
       - name: Test
         run: ctest --test-dir build --output-on-failure --timeout 30
 

scripts/find_vs.ps1

@@ -0,0 +1,48 @@
+# Find and enter a Visual Studio development environment.
+# Required to use Ninja instead of msbuild on our build agents.
+function Enter-VsDevEnv {
+    [CmdletBinding()]
+    param(
+        [Parameter()]
+        [switch]$Prerelease,
+        [Parameter()]
+        [string]$architecture = "x64"
+    )
+
+    $ErrorActionPreference = 'Stop'
+
+    if ($null -eq (Get-InstalledModule -name 'VSSetup' -ErrorAction SilentlyContinue)) {
+        Install-Module -Name 'VSSetup' -Scope CurrentUser -SkipPublisherCheck -Force
+    }
+    Import-Module -Name 'VSSetup'
+
+    Write-Verbose 'Searching for VC++ instances'
+    $vsinfo = `
+        Get-VSSetupInstance  -All -Prerelease:$Prerelease `
+    | Select-VSSetupInstance `
+        -Latest -Product * `
+        -Require 'Microsoft.VisualStudio.Component.VC.Tools.x86.x64'
+
+    $vspath = $vsinfo.InstallationPath
+
+    switch ($env:PROCESSOR_ARCHITECTURE) {
+        "amd64" { $hostarch = "x64" }
+        "x86" { $hostarch = "x86" }
+        "arm64" { $hostarch = "arm64" }
+        default { throw "Unknown architecture: $switch" }
+    }
+
+    $devShellModule = "$vspath\Common7\Tools\Microsoft.VisualStudio.DevShell.dll"
+
+    Import-Module -Global -Name $devShellModule
+
+    Write-Verbose 'Setting up environment variables'
+    Enter-VsDevShell -VsInstanceId $vsinfo.InstanceId  -SkipAutomaticLocation `
+        -devCmdArguments "-arch=$architecture -host_arch=$hostarch"
+
+    Set-Item -Force -path "Env:\Platform" -Value $architecture
+
+    remove-Module Microsoft.VisualStudio.DevShell, VSSetup
+}
+
+Enter-VsDevEnv