use Azure Pipelines for Windows builds (#105)

* use containers in Azure Pipelines

* -nanoserver-1803

* which dotnet on win1803?

* build on Windows

* powershell

* add NuGet.Config

NuGet.Config

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<configuration>
+  <packageSources>
+    <clear />
+    <add key="nuget.org" value="https://api.nuget.org/v3/index.json" protocolVersion="3" />
+  </packageSources>
+</configuration>

azure-pipelines.yml

@@ -1,16 +1,30 @@
-pool:
-  vmImage: Ubuntu-16.04
-steps:
-- script: |
-    set -e
-    ./build.sh
-    ./build-checksum.sh
-- task: CopyFiles@2
-  inputs:
-    contents: bin/*.nupkg
-    flattenFolders: true
-    targetFolder: $(Build.ArtifactStagingDirectory)
-- task: PublishBuildArtifacts@1
-  inputs:
-    pathtoPublish: $(Build.ArtifactStagingDirectory)
-    artifactName: nuget
+jobs:
+
+- job: Windows
+  pool:
+    vmImage: win1803
+  # container: 'mcr.microsoft.com/dotnet/core/sdk:2.2.105-nanoserver-1803'
+  steps:
+  - powershell: |
+      dotnet --version
+      .\build.ps1
+      if ($lastexitcode -ne 0){ exit $lastexitcode }
+
+- job: Linux
+  pool:
+    vmImage: Ubuntu-16.04
+  container: mcr.microsoft.com/dotnet/core/sdk:2.2.105
+  steps:
+  - script: |
+      set -e
+      ./build.sh
+      ./build-checksum.sh
+  - task: CopyFiles@2
+    inputs:
+      contents: bin/*.nupkg
+      flattenFolders: true
+      targetFolder: $(Build.ArtifactStagingDirectory)
+  - task: PublishBuildArtifacts@1
+    inputs:
+      pathtoPublish: $(Build.ArtifactStagingDirectory)
+      artifactName: nuget