roslyn-tools/docs/RepoToolset.md

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Description

RepoToolset is a set of msbuild props and targets files that provide build features used across repos, such as CI integration, packaging, VSIX and VS setup authoring, testing, and signing via Microbuild.

The goals are

  • to reduce the number of copies of the same or similar props, targets and script files across repos
  • enable cross-platform build that relies on a standalone dotnet cli (downloaded during restore) as well as desktop msbuild based build
  • no dependency on software installed on the machine when using dotnet cli
  • be as close to the latest shipping dotnet SDK as possible, with minimal overrides and tweaks
  • be modular and flexible, not all repos need all features; let the repo choose subset of features to import
  • unify common operations and structure across repos
  • unify VSTS build definitions used to produce official builds

The toolset has four kinds of features and helpers:

  • Common conventions applicable to all repos using the toolset.
  • Infrastructure required for Jenkins, MicroBuild, orchestrated build and build from source.
  • Workarounds for bugs in shipping tools (dotnet SDK, VS SDK, msbuild, VS, NuGet client, etc.). Will be removed once the bugs are fixed in the product and the toolset moves to the new version of the tool.
  • Abstraction of peculiarities of VSSDK and VS insertion process that are not compatible with dotnet SDK.

Repos currently using the toolset:

The toolset has following requirements on the repo layout.

Single build output

All build outputs are located under a single directory called artifacts. The RepoToolset defines the following output structure:

artifacts
  $(Configuration)
    bin
      $(MSBuildProjectName)    
    packages
      $(MSBuildProjectName).$(PackageVersion).nupkg
    TestResults
      $(MSBuildProjectName)_$(TargetFramework)_$(TestArchitecture).(xml|html|log|error.log)
    VSSetup
      Insertion
        $(VsixPackageId).json
        $(VsixPackageId).vsmand
        $(VsixContainerName).vsix
        $(VisualStudioInsertionComponent).vsman
         
      $(VsixPackageId).json
      $(VsixContainerName).vsix
    VSSetup.obj
      $(VisualStudioInsertionComponent)
    SymStore
      $(MSBuildProjectName)
    log
      Build.binlog
    tmp
  obj
    $(MSBuildProjectName)
      $(Configuration)
  toolset

Having a common output directory structure makes it possible to unify MicroBuild definitions.

directory description
bin Build output of each project.
obj Intermediate directory for each project.
packages NuGet packages produced by all projects in the repo.
VSSetup Packages produced by VSIX projects in the repo. These packages are experimental and can be used for dogfooding.
VSSetup/Insertion Willow manifests and VSIXes to be inserted into VS.
VSSetup.obj Temp files produced by VSIX build.
SymStore Storage for converted Windows PDBs
log Build binary log and other logs.
tmp Temp files generated during build.
toolset Files generated during toolset restore.

Build scripts and extensibility points

eng
  common
    build.ps1
    build.sh
    CIBuild.cmd
    cibuild.sh
  SignToolData.json
  Versions.props
  FixedVersions.props (optional)
  Tools.props (optional)
  AfterSolutionBuild.targets (optional)
  AfterSigning.targets (optional)
src
  Directory.Build.props
  Directory.Build.targets
global.json
nuget.config
.vsts-ci.yml
Build.cmd
build.sh
Restore.cmd
restore.sh
Test.cmd
test.sh

/eng/common/*

The RepoToolset requires bootstrapper scripts to be present in the repo. The scripts in this directory shall be present and the same across all repositories using RepoToolset.

/eng/SignToolData.json: Sign Tool configuration

The file is present in the repo and describes how build outputs should be signed.

/eng/Versions.props: A single file listing component versions and used tools

The file is present in the repo and defines versions of all dependencies used in the repository, the NuGet feeds they should be restored from and the version of the components produced by the repo build.

<Project>
  <PropertyGroup>
    <!-- Base three-part version used for all outputs of the repo (assemblies, packages, vsixes) -->
    <VersionBase>1.0.0</VersionBase>
    <!-- Package pre-release suffix not including build number -->
    <PreReleaseVersionLabel>rc2</PreReleaseVersionLabel>
  
    <!-- Opt-in repo features -->
    <UsingToolVSSDK>true</UsingToolVSSDK>
    <UsingToolIbcOptimization>true</UsingToolIbcOptimization>
        
    <!-- Opt-out repo features -->
    <UsingToolXliff>false</UsingToolXliff>
  
    <!-- Versions of other dependencies -->   
    <MyPackageVersion>1.2.3-beta</MyPackageVersion>
  </PropertyGroup>
  
  <PropertyGroup>
    <!-- Feeds to use to restore dependent packages from. -->  
    <RestoreSources>
      $(RestoreSources);
      https://pkgs.dev.azure.com/dnceng/public/_packaging/myfeed/nuget/v3/index.json
    </RestoreSources>
  </PropertyGroup>
</Project>

The toolset defines a set of tools (or features) that each repo can opt into or opt out. Since different repos have different needs the set of tools that will be imported from the toolset can be controlled by UsingTool{tool-name} properties, where tool-name is e.g. Xliff, SourceLink, XUnit, VSSDK, IbcOptimization, etc. These properties shall be set in the Versions.props file.

The toolset also defines default versions for various tools and dependencies, such as MicroBuild, XUnit, VSSDK, etc. These defaults can be overridden in the Versions.props file.

See DefaultVersions for a list of UsingTool properties and default versions.

/eng/FixedVersions.props (Orchestrated Build)

Versions of dependencies specified in Versions.props may be overriden by Orchestrated Build. FixedVersions.props specifies versions that should not flow from Orchestrated Build.

/eng/Tools.props (optional)

Specify package references to additional tools that are needed for the build. These tools are only used for build operations performed outside of the repository solution (such as additional packaging, signing, publishing, etc.).

/eng/AfterSolutionBuild.targets (optional)

Targets executed in a step right after the solution is built.

/eng/AfterSigning.targets (optional)

Targets executed in a step right after artifacts has been signed.

/global.json, /nuget.config: SDK configuration

/global.json file is present and specifies the version of the dotnet and RoslynTools.RepoToolset SDKs.

For example,

{
  "sdk": {
    "version": "2.1.300-rtm-008866"
  },
  "msbuild-sdks": {
    "RoslynTools.RepoToolset": "1.0.0-beta2-63009-01"
  }
}

Include vswhere version if the repository should be built via desktop msbuild instead of dotnet cli:

  "vswhere": {
    "version": "2.2.7"
  }

/nuget.config file is present and specifies the Azure Artifacts feed to retrieve RoslynTools.RepoToolset SDK from like so:

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <!-- Only specify feed for RepoToolset SDK (see https://github.com/Microsoft/msbuild/issues/2982) -->
  <packageSources>
    <clear />
    <add key="roslyn-tools" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-eng/nuget/v3/index.json" />
  </packageSources>
</configuration>

An improvement in SKD resolver is proposed to be able to specify the feed in global.json file to avoid the need for extra configuration in nuget.config. See https://github.com/Microsoft/msbuild/issues/2982.

/src/Directory.Build.props

Directory.Build.props shall import RepoToolset SDK. It may also specify public keys for InternalsVisibleTo project items and other properties applicable to all projects to the repository.

<PropertyGroup>  
  <PropertyGroup>
    <ImportNetSdkFromRepoToolset>false</ImportNetSdkFromRepoToolset>
  </PropertyGroup>

  <Import Project="Sdk.props" Sdk="RoslynTools.RepoToolset" />    

  <!-- Public keys used by InternalsVisibleTo project items -->
  <MoqPublicKey>00240000048000009400...</MoqPublicKey> 
</PropertyGroup>

Directory.Build.targets

Directory.Build.targets shall import RepoToolset SDK. It may specify additional targets applicable to all source projects.

<Project>
  <Import Project="Sdk.targets" Sdk="RoslynTools.RepoToolset" />
</Project>

Source Projects

Projects are located under src directory under root repo, in any subdirectory structure appropriate for the repo.

Projects shall use Microsoft.NET.Sdk SDK like so:

<Project Sdk="Microsoft.NET.Sdk">
    ...
</Project>

Project name conventions

  • Unit test project file names shall end with .UnitTests or .Tests, e.g. MyProject.UnitTests.csproj or MyProject.Tests.csproj.
  • Integration test project file names shall end with .IntegrationTests, e.g. MyProject.IntegrationTests.vbproj.
  • Performance test project file names shall end with .PerformanceTests, e.g. MyProject.PerformaceTests.csproj.
  • If source.extension.vsixmanifest is present next to the project file the project is by default considered to be a VSIX producing project.

Other Projects

It might be useful to create other top-level directories containing projects that are not standard C#/VB/F# projects. For example, projects that aggregate outputs of multiple projects into a single NuGet package or Willow component. These projects should also be included in the main solution so that the build driver includes them in build process, but their Directory.Build.* may be different from source projects. Hence the different root directory.

Building VSIX packages (optional)

Building Visual Studio components is an opt-in feature of the RepoToolset. Property UsingToolVSSDK needs to be set to true in the Versions.props file.

Set VSSDKTargetPlatformRegRootSuffix property to specify the root suffix of the VS hive to deploy to.

If source.extension.vsixmanifest is present next to a project file the project is by default considered to be a VSIX producing project. A package reference to Microsoft.VSSDK.BuildTools is automatically added to such project. A project that needs Microsoft.VSSDK.BuildTools for generating pkgdef file needs to include the PackageReference explicitly.

RepoToolset include build target for generating VS Template VSIXes. Adding VSTemplate items to project will trigger the target.

source.extension.vsixmanifest shall specify Experimental="true" attribute in Installation section. The experimental flag will be stripped from VSIXes inserted into Visual Studio.

VSIX packages are built to VSSetup directory.

Visual Studio Insertion components (optional)

To include the output VSIX of a project in Visual Studio Insertion, set the VisualStudioInsertionComponent property. Multiple VSIXes can specify the same component name, in which case their manifests will be merged into a single insertion unit.

The Visual Studio insertion manifests and VSIXes are generated during Pack task into VSSetup\Insertion directory, where they are picked by by MicroBuild VSTS publishing task during official builds.

RepoToolset also enables building VS Setup Components from .swr files (as opposed to components comprised of one or more VSIXes).

Use SwrProperty and SwrFile items to define a property that will be substituted in .swr files for given value and the set of .swr files, respectively.

For example,

<Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
    <TargetFramework>net46</TargetFramework>
    <VisualStudioInsertionComponent>Microsoft.VisualStudio.ProjectSystem.Managed</VisualStudioInsertionComponent>
  </PropertyGroup>
  <ItemGroup>
    <SwrProperty Include="Version=$(VsixVersion)" />
    <SwrProperty Include="VisualStudioXamlRulesDir=$(VisualStudioXamlRulesDir)" />
  </ItemGroup>
  <ItemGroup>
    <SwrFile Include="*.swr" />
  </ItemGroup>
</Project>

Where .swr file is:

use vs

package name=Microsoft.VisualStudio.ProjectSystem.Managed.CommonFiles
        version=$(Version)

vs.localizedResources
  vs.localizedResource language=en-us
                       title="Microsoft VisualStudio Managed Project System Common Files"
                       description="Microsoft VisualStudio ProjectSystem for C#/VB/F#(Managed) Projects"

folder "InstallDir:MSBuild\Microsoft\VisualStudio\Managed"
  file source="$(VisualStudioXamlRulesDir)Microsoft.CSharp.DesignTime.targets"
  file source="$(VisualStudioXamlRulesDir)Microsoft.VisualBasic.DesignTime.targets"
  file source="$(VisualStudioXamlRulesDir)Microsoft.FSharp.DesignTime.targets"
  file source="$(VisualStudioXamlRulesDir)Microsoft.Managed.DesignTime.targets"

MicroBuild

The repository shall define a YAML build definition to be used by MicroBuild (e.g. .vsts-ci.yml).

The following step shall be included in the definition:

- task: ms-vseng.MicroBuildTasks.30666190-6959-11e5-9f96-f56098202fef.MicroBuildSigningPlugin@1
  displayName: Install Signing Plugin
  inputs:
    signType: real
    esrpSigning: true
  condition: and(succeeded(), eq(variables['PB_SignType'], 'real'))  # Orchestrated Build only
- script: eng\common\CIBuild.cmd 
          -configuration $(BuildConfiguration)
          /p:DotNetSymbolServerTokenMsdl=$(microsoft-symbol-server-pat)
          /p:DotNetSymbolServerTokenSymWeb=$(symweb-symbol-server-pat)
  displayName: Build
- task: PublishTestResults@1
  displayName: Publish Test Results
  inputs:
    testRunner: XUnit
    testResultsFiles: 'artifacts/$(BuildConfiguration)/TestResults/*.xml'
    mergeTestResults: true
    testRunTitle: 'Unit Tests'
  condition: and(succeededOrFailed(), ne(variables['PB_SkipTests'], 'true')) # Orchestrated Build only

The VSTS build definition also needs to link the following variable group:

  • DotNet-Symbol-Publish

    • microsoft-symbol-server-pat
    • symweb-symbol-server-pat

RepoToolset expects MicroBuild to set the following environment variables:

  • BUILD_BUILDNUMBER=yyyymmdd.nn
  • SignType="real"

Build Properties

SemanticVersioningV1 (bool)

true if Version needs to respect SemVer 1.0. Default is false, which means format following SemVer 2.0.

IsShipping (bool)

true if the package (NuGet or VSIX) produced by the project is shipping.

Shipping packages and their content must be signed. Windows PDBs are produced and published to symbol servers for binaries in shipping packages. Shipping packages can be published to NuGet, non-shipping packages can only be published Azure tool feeds.