Visual Studio Preview in CI

azure_pipelines.yml

pool:
  vmImage: 'windows-2019'
steps:
- checkout: self

- task: UseDotNet@2
  inputs:
    packageType: sdk
    version: 3.1.x
    performMultiLevelLookup: true

- script: dotnet tool update -g dotnet-vs
  displayName: dotnet tool update -g dotnet-vs
- pwsh: echo "##vso[task.setvariable variable=MSB]$(vs where preview --prop=InstallationPath)"
- script: vs install preview --quiet +Microsoft.VisualStudio.Component.ManagedDesktop.Core	+Microsoft.NetCore.Component.DevelopmentTools
  displayName: vs install preview
  condition: eq(variables['MSB'], '')
- pwsh: echo "##vso[task.prependpath]$(vs where preview --prop=InstallationPath)\MSBuild\Current\Bin"
  displayName: prepend MSBuild to %PATH%
- script: msbuild -r
  displayName: msbuild -r
- script: msbuild -t:test
  displayName: msbuild -t:test

build.yml

  
name: build
on: push

jobs:
  build:
    runs-on: windows-latest
    steps:
      - uses: actions/checkout@v2
      - uses: actions/setup-dotnet@v1
        with:
          dotnet-version: 3.1.x
      - run: dotnet tool update -g dotnet-vs
      - run: echo "::set-env name=MSB::$(vs where preview --prop=InstallationPath)"
      - run: vs install preview --quiet +Microsoft.VisualStudio.Component.ManagedDesktop.Core	+Microsoft.NetCore.Component.DevelopmentTools
        if: env.MSB == ''
      - run: echo "::add-path::$(vs where preview --prop=InstallationPath)\MSBuild\Current\Bin"
      - run: msbuild -r
      - run: msbuild -t:test