diff --git a/.azure/pipelines/ci.yml b/.azure/pipelines/ci.yml
index d6a660b48b..caa6557d49 100644
--- a/.azure/pipelines/ci.yml
+++ b/.azure/pipelines/ci.yml
@@ -471,3 +471,52 @@ jobs:
- name: Linux_Test_Results
path: artifacts/TestResults/
publishOnError: true
+
+# Source build
+- job: Source_Build
+ displayName: 'Test: Linux Source Build'
+ container: centos:7
+ pool:
+ vmImage: 'ubuntu-16.04'
+ variables:
+ DotNetCoreSdkDir: $(Agent.ToolsDirectory)/dotnet
+ DOTNET_SYSTEM_GLOBALIZATION_INVARIANT: true
+ steps:
+ - script: |
+ source eng/common/native/common-library.sh
+ mkdir -p $HOME/bin
+ GetFile https://github.com/stedolan/jq/releases/download/jq-1.6/jq-linux64 $HOME/bin/jq
+ chmod +x $HOME/bin/jq
+ echo "##vso[task.prependpath]$HOME/bin"
+ displayName: Install jq
+ - task: UseDotNet@2
+ displayName: 'Use .NET Core sdk'
+ inputs:
+ packageType: sdk
+ # The SDK version selected here is intentionally supposed to use the latest release
+ # For the purpose of building Linux distros, we can't depend on features of the SDK
+ # which may not exist in pre-built versions of the SDK
+ version: 3.0.x
+ installationPath: $(DotNetCoreSdkDir)
+ includePreviewVersions: true
+ - script: ./eng/scripts/ci-source-build.sh --ci --configuration Release /p:BuildManaged=true
+ displayName: Run ci-source-build.sh
+ - task: PublishBuildArtifacts@1
+ displayName: Upload logs
+ condition: always()
+ continueOnError: true
+ inputs:
+ pathtoPublish: artifacts/log/
+ artifactName: Source_Build_Logs
+ artifactType: Container
+ parallel: true
+ - task: PublishBuildArtifacts@1
+ displayName: Upload package artifacts
+ # Only capture source build artifacts in PRs for the sake of inspecting
+ # changes that impact source-build. The artifacts from this build pipeline are never actually used.
+ condition: and(succeeded(), eq(variables['Build.Reason'], 'PullRequest'))
+ inputs:
+ pathtoPublish: artifacts/packages/
+ artifactName: Source_Build_Packages
+ artifactType: Container
+ parallel: true
diff --git a/Directory.Build.targets b/Directory.Build.targets
index 3f3ff318a9..0da788da27 100644
--- a/Directory.Build.targets
+++ b/Directory.Build.targets
@@ -14,6 +14,9 @@
By default, assemblies which are only in the Microsoft.AspNetCore.App shared framework are not available as NuGet packages.
-->
false
+
+
+ true
diff --git a/eng/AfterSolutionBuild.targets b/eng/AfterSolutionBuild.targets
index 3857e15239..24f5a1b8b2 100644
--- a/eng/AfterSolutionBuild.targets
+++ b/eng/AfterSolutionBuild.targets
@@ -17,7 +17,7 @@
SharedFrameworkTargetFramework="netcoreapp$(AspNetCoreMajorVersion).$(AspNetCoreMinorVersion)" />
-
+
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+
-
-
-
-
-
@@ -52,17 +30,9 @@ and are generated based on the last package release.
-
-
-
-
-
-
-
-
@@ -94,13 +64,11 @@ and are generated based on the last package release.
-
-
@@ -112,42 +80,15 @@ and are generated based on the last package release.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
@@ -155,15 +96,8 @@ and are generated based on the last package release.
-
-
-
-
-
-
-
@@ -177,4 +111,79 @@ and are generated based on the last package release.
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/eng/Workarounds.targets b/eng/Workarounds.targets
index 029cbbc390..83e176a4a8 100644
--- a/eng/Workarounds.targets
+++ b/eng/Workarounds.targets
@@ -21,10 +21,15 @@
-
+
+
+
+
diff --git a/eng/WorkaroundsImported.targets b/eng/WorkaroundsImported.targets
new file mode 100644
index 0000000000..3b6f29f362
--- /dev/null
+++ b/eng/WorkaroundsImported.targets
@@ -0,0 +1,5 @@
+
+
+
+
+
diff --git a/eng/scripts/ci-source-build.sh b/eng/scripts/ci-source-build.sh
new file mode 100755
index 0000000000..8b4c801d3a
--- /dev/null
+++ b/eng/scripts/ci-source-build.sh
@@ -0,0 +1,39 @@
+#!/usr/bin/env bash
+
+ #
+# This script is meant for testing source build by imitating some of the input parameters and conditions.
+#
+
+set -euo pipefail
+
+scriptroot="$( cd -P "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+reporoot="$(dirname "$(dirname "$scriptroot")")"
+
+ # For local development, make a backup copy of this file first
+if [ ! -f "$reporoot/global.bak.json" ]; then
+ mv "$reporoot/global.json" "$reporoot/global.bak.json"
+fi
+
+ # Detect the current version of .NET Core installed
+export SDK_VERSION=$(dotnet --version)
+echo "The ambient version of .NET Core SDK version = $SDK_VERSION"
+
+ # Update the global.json file to match the current .NET environment
+cat "$reporoot/global.bak.json" | \
+ jq '.sdk.version=env.SDK_VERSION' | \
+ jq '.tools.dotnet=env.SDK_VERSION' | \
+ jq 'del(.tools.runtimes)' \
+ > "$reporoot/global.json"
+
+ # Restore the original global.json file
+trap "{
+ mv "$reporoot/global.bak.json" "$reporoot/global.json"
+}" EXIT
+
+export DotNetBuildFromSource='true'
+
+ # Build repo tasks
+"$reporoot/eng/common/build.sh" --restore --build --ci --configuration Release /p:ProjectToBuild=$reporoot/eng/tools/RepoTasks/RepoTasks.csproj
+
+ # Build projects
+"$reporoot/eng/common/build.sh" --restore --build --pack "$@"
\ No newline at end of file
diff --git a/eng/targets/CSharp.Common.props b/eng/targets/CSharp.Common.props
index 64966a92d3..6cc6bd2dd8 100644
--- a/eng/targets/CSharp.Common.props
+++ b/eng/targets/CSharp.Common.props
@@ -11,7 +11,7 @@
-
+
diff --git a/eng/targets/ResolveReferences.targets b/eng/targets/ResolveReferences.targets
index 684660fed1..263edf3eaa 100644
--- a/eng/targets/ResolveReferences.targets
+++ b/eng/targets/ResolveReferences.targets
@@ -19,6 +19,8 @@
+ true
+
ResolveCustomReferences;
$(ResolveReferencesDependsOn);
@@ -60,7 +62,7 @@
-
+
true
@@ -129,7 +131,7 @@
This target resolves remaining Referene items to Packages, if possible. If not, they are left as Reference items fo the SDK to resolve.
This executes on NuGet restore and during DesignTimeBuild. It should not run in the outer, cross-targeting build.
-->
-
+
diff --git a/eng/tools/RepoTasks/RepoTasks.csproj b/eng/tools/RepoTasks/RepoTasks.csproj
index f62865e203..0bf6be98ae 100644
--- a/eng/tools/RepoTasks/RepoTasks.csproj
+++ b/eng/tools/RepoTasks/RepoTasks.csproj
@@ -7,6 +7,8 @@
false
embedded
true
+
+ false
diff --git a/src/Framework/ref/Microsoft.AspNetCore.App.Ref.csproj b/src/Framework/ref/Microsoft.AspNetCore.App.Ref.csproj
index 2a73d0fb44..44e668d452 100644
--- a/src/Framework/ref/Microsoft.AspNetCore.App.Ref.csproj
+++ b/src/Framework/ref/Microsoft.AspNetCore.App.Ref.csproj
@@ -76,6 +76,9 @@ This package is an internal implementation of the .NET Core SDK and is not meant
_InstallTargetingPackIntoLocalDotNet;
_CreateTargetingPackArchive;
+
+
+
diff --git a/src/Framework/src/Microsoft.AspNetCore.App.Runtime.csproj b/src/Framework/src/Microsoft.AspNetCore.App.Runtime.csproj
index 7bc95d9fe5..d483371a18 100644
--- a/src/Framework/src/Microsoft.AspNetCore.App.Runtime.csproj
+++ b/src/Framework/src/Microsoft.AspNetCore.App.Runtime.csproj
@@ -8,6 +8,8 @@
false
$(MSBuildProjectName).$(RuntimeIdentifier)
true
+
+ false
false
Provides a default set of APIs for building an ASP.NET Core application. Contains assets used for self-contained deployments.
@@ -361,8 +363,8 @@ This package is an internal implementation of the .NET Core SDK and is not meant
Targets related to creating .zip/.tar.gz
#########################################
-->
-
-
+
@@ -412,7 +414,9 @@ This package is an internal implementation of the .NET Core SDK and is not meant
-
+
@@ -437,7 +441,9 @@ This package is an internal implementation of the .NET Core SDK and is not meant
Condition="'$(ArchiveExtension)' == '.tar.gz'" />
-
+
diff --git a/src/Identity/UI/src/Microsoft.AspNetCore.Identity.UI.csproj b/src/Identity/UI/src/Microsoft.AspNetCore.Identity.UI.csproj
index f34b186e0d..49f3f003b6 100644
--- a/src/Identity/UI/src/Microsoft.AspNetCore.Identity.UI.csproj
+++ b/src/Identity/UI/src/Microsoft.AspNetCore.Identity.UI.csproj
@@ -40,7 +40,8 @@
-
+
+
-
+
+
diff --git a/src/Tools/FirstRunCertGenerator/src/Microsoft.AspNetCore.DeveloperCertificates.XPlat.csproj b/src/Tools/FirstRunCertGenerator/src/Microsoft.AspNetCore.DeveloperCertificates.XPlat.csproj
index 3d7ce08b72..e0500429ab 100644
--- a/src/Tools/FirstRunCertGenerator/src/Microsoft.AspNetCore.DeveloperCertificates.XPlat.csproj
+++ b/src/Tools/FirstRunCertGenerator/src/Microsoft.AspNetCore.DeveloperCertificates.XPlat.csproj
@@ -9,6 +9,7 @@
false
false
+ false
diff --git a/src/Tools/dotnet-watch/test/dotnet-watch.Tests.csproj b/src/Tools/dotnet-watch/test/dotnet-watch.Tests.csproj
index 349e681dbf..49aebd1482 100644
--- a/src/Tools/dotnet-watch/test/dotnet-watch.Tests.csproj
+++ b/src/Tools/dotnet-watch/test/dotnet-watch.Tests.csproj
@@ -28,13 +28,15 @@
-
+
+
-
+
+