<!--
***********************************************************************************************
Microsoft.NET.Sdk.StaticWebAssets.targets

WARNING:  DO NOT MODIFY this file unless you are knowledgeable about MSBuild and have
          created a backup copy.  Incorrect changes to this file will make it
          impossible to load or build your projects from the command-line or the IDE.

Copyright (c) .NET Foundation. All rights reserved.
***********************************************************************************************
-->

<Project ToolsVersion="14.0">

  <!-- Targets that support static content scenarios in ASP.NET Core.
       The main targets are:
       * GenerateStaticWebAssetsManifest: Creates a manifest file to use in development with
         the paths to all the references packages and projects content roots.
       * ResolveStaticWebAssetsInputs: Collects all the static assets from different sources
         * Current project.
         * Referenced project.
         * Referenced packages.
       * GenerateStaticWebAssetsPackTargets: Includes the static web assets in the current project
         under the 'staticwebassets' folder in the nuget package and generates and includes in the
         package the appropriate .props files to support discovering the packaged static web assets.
       * GetCurrentProjectStaticWebAssets: Called on each referenced project to retrieve the list of
         static web assets in the project.
  -->

  <UsingTask
    TaskName="Microsoft.AspNetCore.StaticWebAssets.Tasks.GenerateV1StaticWebAssetsManifest"
    AssemblyFile="$(StaticWebAssetsSdkBuildTasksAssembly)"
    Condition="'$(StaticWebAssetsSdkBuildTasksAssembly)' != ''" />

  <UsingTask
    TaskName="Microsoft.AspNetCore.StaticWebAssets.Tasks.ValidateStaticWebAssetsUniquePaths"
    AssemblyFile="$(StaticWebAssetsSdkBuildTasksAssembly)"
    Condition="'$(StaticWebAssetsSdkBuildTasksAssembly)' != ''" />

  <UsingTask
    TaskName="Microsoft.AspNetCore.StaticWebAssets.Tasks.GenerateStaticWebAsssetsPropsFile"
    AssemblyFile="$(StaticWebAssetsSdkBuildTasksAssembly)"
    Condition="'$(StaticWebAssetsSdkBuildTasksAssembly)' != ''" />

  <UsingTask
    TaskName="Microsoft.AspNetCore.StaticWebAssets.Tasks.StaticWebAssetsGeneratePackagePropsFile"
    AssemblyFile="$(StaticWebAssetsSdkBuildTasksAssembly)"
    Condition="'$(StaticWebAssetsSdkBuildTasksAssembly)' != ''" />

  <UsingTask
    TaskName="Microsoft.AspNetCore.StaticWebAssets.Tasks.StaticWebAssetsGeneratePackManifest"
    AssemblyFile="$(StaticWebAssetsSdkBuildTasksAssembly)"
    Condition="'$(StaticWebAssetsSdkBuildTasksAssembly)' != ''" />

  <PropertyGroup>
    <GenerateStaticWebAssetsManifestDependsOn>
      ResolveStaticWebAssetsInputs;
      $(GenerateStaticWebAssetsManifestDependsOn)
      _CreateStaticWebAssetsInputsCacheFile;
      GenerateStaticWebAssetsPackTargets;
    </GenerateStaticWebAssetsManifestDependsOn>

    <GetCurrentProjectStaticWebAssetsDependsOn>
      ResolveCurrentProjectStaticWebAssetsInputs;
      $(GetCurrentProjectStaticWebAssetsDependsOn)
    </GetCurrentProjectStaticWebAssetsDependsOn>

    <PrepareForRunDependsOn>
      GenerateStaticWebAssetsManifest;
      $(PrepareForRunDependsOn);
    </PrepareForRunDependsOn>

    <GetCopyToOutputDirectoryItemsDependsOn>
      _IncludeGeneratedStaticWebAssetsManifest;
      $(GetCopyToOutputDirectoryItemsDependsOn);
    </GetCopyToOutputDirectoryItemsDependsOn>

    <ResolveCurrentProjectStaticWebAssetsInputsDependsOn>
      ResolveStaticWebAssetsConfiguration;
      $(ResolveCurrentProjectStaticWebAssetsInputsDependsOn)
    </ResolveCurrentProjectStaticWebAssetsInputsDependsOn>

    <ResolveStaticWebAssetsInputsDependsOn>
      ResolveCurrentProjectStaticWebAssetsInputs;
      ResolveReferencedProjectsStaticWebAssets;
      $(ResolveStaticWebAssetsInputsDependsOn)
    </ResolveStaticWebAssetsInputsDependsOn>

    <ResolveReferencedProjectsStaticWebAssetsDependsOn Condition="'$(TargetFramework)' != ''">
      PrepareProjectReferences;
      $(ResolveReferencedProjectsStaticWebAssetsDependsOn)
    </ResolveReferencedProjectsStaticWebAssetsDependsOn>

    <GenerateStaticWebAssetsPackTargetsDependsOn>
      ResolveStaticWebAssetsInputs;
      $(GenerateStaticWebAssetsPackTargetsDependsOn);
      _CreateStaticWebAssetsCustomPropsCacheFile;
    </GenerateStaticWebAssetsPackTargetsDependsOn>

    <TargetsForTfmSpecificContentInPackage Condition="$(IsInnerBuild) != 'true'" >
      ResolveStaticWebAssetsInputs;
      IncludeStaticWebAssetPackItems;
      $(TargetsForTfmSpecificContentInPackage)
    </TargetsForTfmSpecificContentInPackage>

    <PackDependsOn>
      _RemoveWebRootContentFromPackaging;
      $(PackDependsOn)
    </PackDependsOn>

  </PropertyGroup>

  <PropertyGroup>
    <_StaticWebAssetsIntermediateOutputPath>$(IntermediateOutputPath)staticwebassets\</_StaticWebAssetsIntermediateOutputPath>

    <!-- Development manifest generation -->
    <_GeneratedStaticWebAssetsInputsCacheFile>$(_StaticWebAssetsIntermediateOutputPath)$(TargetName).StaticWebAssets.Manifest.cache</_GeneratedStaticWebAssetsInputsCacheFile>
    <_GeneratedStaticWebAssetsDevelopmentManifest>$(_StaticWebAssetsIntermediateOutputPath)$(TargetName).StaticWebAssets.xml</_GeneratedStaticWebAssetsDevelopmentManifest>
    <_GeneratedStaticWebAssetsPackManifest>$(_StaticWebAssetsIntermediateOutputPath)$(TargetName).pack.json</_GeneratedStaticWebAssetsPackManifest>

    <!-- Project packing generation -->
    <_GeneratedStaticWebAssetsCustomPropsCacheFile>$(_StaticWebAssetsIntermediateOutputPath)$(TargetName).StaticWebAssets.Pack.cache</_GeneratedStaticWebAssetsCustomPropsCacheFile>

    <!-- Temporary files -->
    <_GeneratedStaticWebAssetsPropsFile>$(_StaticWebAssetsIntermediateOutputPath)msbuild.$(PackageId).Microsoft.AspNetCore.StaticWebAssets.props</_GeneratedStaticWebAssetsPropsFile>
    <_GeneratedBuildPropsFile>$(_StaticWebAssetsIntermediateOutputPath)msbuild.build.$(PackageId).props</_GeneratedBuildPropsFile>
    <_GeneratedBuildMultitargetingPropsFile>$(_StaticWebAssetsIntermediateOutputPath)msbuild.buildMultiTargeting.$(PackageId).props</_GeneratedBuildMultitargetingPropsFile>
    <_GeneratedBuildTransitivePropsFile>$(_StaticWebAssetsIntermediateOutputPath)msbuild.buildTransitive.$(PackageId).props</_GeneratedBuildTransitivePropsFile>

    <!-- Package relative import paths -->
    <_StaticWebAssetsPropsFileImportPath>Microsoft.AspNetCore.StaticWebAssets.props</_StaticWebAssetsPropsFileImportPath>
    <_StaticWebAssetsGeneratedBuildPropsFileImportPath>..\build\$(PackageId).props</_StaticWebAssetsGeneratedBuildPropsFileImportPath>
    <_StaticWebAssetsGeneratedBuildMultiTargetingPropsFileImportPath>..\buildMultiTargeting\$(PackageId).props</_StaticWebAssetsGeneratedBuildMultiTargetingPropsFileImportPath>

  </PropertyGroup>

  <!-- Helper target invoked by other tasks below to ensure that the intermediate output path has the correct
       shape for the intermediate output files that might be generated.
  -->
  <Target Name="_PrepareForStaticWebAssets">
    <MakeDir
      Directories="$(_StaticWebAssetsIntermediateOutputPath)"
      Condition="!Exists('$(_StaticWebAssetsIntermediateOutputPath)')" />
  </Target>

  <Target Name="ResolveStaticWebAssetsConfiguration">
    <PropertyGroup>
      <StaticWebAssetBasePath Condition="'$(StaticWebAssetBasePath)' == ''">_content/$(PackageId)</StaticWebAssetBasePath>
    </PropertyGroup>

  </Target>

  <!--
    ============================================================
                                        Static web assets development manifest generation targets

    The main targets for generating a development manifest with information about the static web
    assets found in referenced packages and projects.
    ============================================================
    -->

  <Target
    Name="_CreateStaticWebAssetsInputsCacheFile"
    DependsOnTargets="ResolveStaticWebAssetsInputs;_PrepareForStaticWebAssets">

    <ItemGroup>
      <!--
      This is the list of inputs that will be used for generating the manifest used during development.
      -->
      <_ExternalStaticWebAsset
        Include="%(StaticWebAsset.Identity)"
        Condition="'%(SourceType)' != ''">
          <BasePath>%(StaticWebAsset.BasePath)</BasePath>
          <ContentRoot>%(StaticWebAsset.ContentRoot)</ContentRoot>
          <SourceId>%(StaticWebAsset.SourceId)</SourceId>
      </_ExternalStaticWebAsset>
    </ItemGroup>

    <!-- We need a transform here to make sure we hash the metadata -->
    <Hash ItemsToHash="@(_ExternalStaticWebAsset->'%(Identity)%(SourceId)%(BasePath)%(ContentRoot)')">
      <Output TaskParameter="HashResult" PropertyName="_StaticWebAssetsCacheHash" />
    </Hash>

    <WriteLinesToFile
      Lines="$(_StaticWebAssetsCacheHash)"
      File="$(_GeneratedStaticWebAssetsInputsCacheFile)"
      Overwrite="True"
      WriteOnlyWhenDifferent="True" />

    <ItemGroup>
      <FileWrites Include="$(_GeneratedStaticWebAssetsInputsCacheFile)" />
    </ItemGroup>

  </Target>

  <!--
    This target generates a manifest for development time that includes information
    about the base path for the referenced package and project static web assets. The
    manifest includes the content root and the base path for each of the referenced
    packages and projects.

    Ideally, each package/project contains a unique base path and a given content
    root, but we don't check for duplicates on either of them.
     -->

  <Target
    Name="GenerateStaticWebAssetsManifest"
    Inputs="$(_GeneratedStaticWebAssetsInputsCacheFile)"
    Outputs="$(_GeneratedStaticWebAssetsDevelopmentManifest)"
    DependsOnTargets="$(GenerateStaticWebAssetsManifestDependsOn)">

    <ItemGroup>
      <_WebRootFiles Include="@(ContentWithTargetPath)" Condition="$([System.String]::Copy('%(TargetPath)').Replace('\','/').StartsWith('wwwroot/'))" />
      <_ReferencedStaticWebAssets Include="@(StaticWebAsset)" Condition="'%(SourceType)' != ''" />
    </ItemGroup>

    <ValidateStaticWebAssetsUniquePaths
      StaticWebAssets="@(_ReferencedStaticWebAssets)"
      WebRootFiles="@(_WebRootFiles)" />

    <GenerateV1StaticWebAssetsManifest
      Condition="'@(_ExternalStaticWebAsset->Count())' != '0'"
      ContentRootDefinitions="@(_ExternalStaticWebAsset)"
      TargetManifestPath="$(_GeneratedStaticWebAssetsDevelopmentManifest)" />

    <ItemGroup Condition="'@(_ExternalStaticWebAsset->Count())' != '0'">
      <FileWrites Include="$(_GeneratedStaticWebAssetsDevelopmentManifest)" />
    </ItemGroup>

  </Target>

  <Target Name="_IncludeGeneratedStaticWebAssetsManifest">
      <!-- This is the list of inputs that will be used for generating the manifest used during development. -->
    <ItemGroup>
      <ContentWithTargetPath
        Include="$(_GeneratedStaticWebAssetsDevelopmentManifest)"
        Condition="Exists('$(_GeneratedStaticWebAssetsDevelopmentManifest)')">
        <Pack>false</Pack>
        <TargetPath>$(TargetName).StaticWebAssets.xml</TargetPath>
        <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
        <CopyToPublishDirectory>Never</CopyToPublishDirectory>
      </ContentWithTargetPath>
    </ItemGroup>

  </Target>

  <!--
    ============================================================
                                        Static web assets discovery related targets

    The main targets for discovering static web assets inside referenced packages, projects and
    the current project.
    ============================================================
    -->

  <!-- This target collects all the StaticWebAssets from different sources:
       * The current project StaticWebAssets that come from wwwroot\** by default.
       * Assets from referenced projects that get retrieved invoking an MSBuild target on
         the referenced projects.
       * Assets from the referenced packages. These will be implicitly included when nuget
         restores the package and includes the package props file for the package.
  -->

    <!-- StaticWebAssets from the current project come from ResolveCurrentProjectStaticWebAssetsInputs which is a dependency of this target. -->
    <!-- StaticWebAssets from referenced projects come from ResolveReferencedProjectsStaticWebAssets which is a dependency of this target. -->
    <!-- StaticWebAssets from packages are already available, so we don't do anything. -->
  <Target
    Name="ResolveStaticWebAssetsInputs"
    DependsOnTargets="$(ResolveStaticWebAssetsInputsDependsOn)" />

  <!-- This is a helper task to compute the project references we need to invoke to retrieve
       the static assets for a given application. We do it this way so that we can
       pass additional build properties to compute the assets from the package when referenced
       as a project. For example, Identity uses this hook to extend the project reference and
       pass in the bootstrap version to use.
  -->

  <Target Name="ResolveReferencedProjectsStaticWebAssets" DependsOnTargets="$(ResolveReferencedProjectsStaticWebAssetsDependsOn)">

    <ItemGroup>
      <!-- It is explicitly ok to take a dependency on _MSBuildProjectReferenceExistent as it is
        something many other products already take a dependency on. -->
      <_StaticWebAssetsProjectReference Include="@(_MSBuildProjectReferenceExistent)" />
    </ItemGroup>

    <MSBuild
      Condition="'@(_StaticWebAssetsProjectReference)' != '' and '%(_StaticWebAssetsProjectReference.BuildReference)' == 'true' and '@(ProjectReferenceWithConfiguration)' != ''"
      Targets="GetCurrentProjectStaticWebAssets"
      Properties="%(_StaticWebAssetsProjectReference.SetConfiguration); %(_StaticWebAssetsProjectReference.SetPlatform);  %(_StaticWebAssetsProjectReference.SetTargetFramework)"
      RemoveProperties="%(_StaticWebAssetsProjectReference.GlobalPropertiesToRemove)"
      Projects="@(_StaticWebAssetsProjectReference)"
      BuildInParallel="$(BuildInParallel)"
      ContinueOnError="!$(BuildingProject)"
      SkipNonexistentTargets="true">

      <Output TaskParameter="TargetOutputs" ItemName="_ReferencedProjectStaticWebAssets" />
    </MSBuild>

    <ItemGroup>
      <StaticWebAsset
        Include="@(_ReferencedProjectStaticWebAssets)"
        KeepMetadata="ContentRoot;BasePath;RelativePath;SourceId;SourceType;CopyToPublishDirectory" />
    </ItemGroup>

  </Target>

  <Target Name="ResolveCurrentProjectStaticWebAssetsInputs" DependsOnTargets="$(ResolveCurrentProjectStaticWebAssetsInputsDependsOn)">
      <ItemGroup>

      <_ThisProjectStaticWebAsset
        Include="@(Content)"
        Condition="$([System.String]::Copy('%(Identity)').Replace('\','/').StartsWith('wwwroot/'))">

        <!-- Remove the wwwroot\ prefix -->
        <RelativePath>$([System.String]::Copy('%(Identity)').Substring(8))</RelativePath>

      </_ThisProjectStaticWebAsset>

      <StaticWebAsset Include="@(_ThisProjectStaticWebAsset->'%(FullPath)')" RemoveMetadata="ExcludeFromSingleFile">
        <!-- (Package, Project, '' (CurrentProject)) -->
        <SourceType></SourceType>
        <!-- Identifier describing the source, the package id, the project name, empty for the current project.  -->
        <SourceId>$(PackageId)</SourceId>
        <!--
          Full path to the content root for the item:
          * For packages it corresponds to %userprofile%/.nuget/packages/<<PackageId>>/<<PackageVersion>>/razorContent
          * For referenced projects it corresponds to <<FullProjectRefPath>>/wwwroot
          * For the current projects it corresponds to $(MSBuildProjectDirectory)wwwroot\
        -->
        <ContentRoot>$([MSBuild]::NormalizeDirectory('$(MSBuildProjectDirectory)\wwwroot\'))</ContentRoot>
        <!-- Subsection (folder) from the url space where content for this library will be served. -->
        <BasePath>$(StaticWebAssetBasePath)</BasePath>
        <!-- Relative path from the content root for the file. At publish time, we combine the BasePath + Relative
             path to determine the final path for the file.
        -->
        <RelativePath>%(RelativePath)</RelativePath>

      </StaticWebAsset>
    </ItemGroup>

  </Target>

  <!--
    Child target to retrieve content from referenced projects
   -->

  <Target Name="GetCurrentProjectStaticWebAssets"
    DependsOnTargets="$(GetCurrentProjectStaticWebAssetsDependsOn)"
    Returns="@(_ThisProjectStaticWebAssets)">

    <ItemGroup>
      <_ThisProjectStaticWebAssets
        Include="@(StaticWebAsset)"
        Condition="'%(StaticWebAsset.SourceType)' == ''">
        <SourceType>Project</SourceType>
      </_ThisProjectStaticWebAssets>
    </ItemGroup>

  </Target>

  <!--
    Forward compatibility with new version of static web assets. This target is invoked by later versions of static web assets to determine
    what targets to invoke, what properties to set, and what properties to remove when doing so, for retrieving the referenced project static
    web assets. For earlier versions of static web assets we will collect the assets and "upgrade" them newer versions by providing default
    values for the additional metadata.
  -->
  <Target Name="GetStaticWebAssetsProjectConfiguration" Returns="@(_StaticWebAssetThisProjectConfiguration)">
    <ItemGroup>
      <_StaticWebAssetThisProjectConfiguration Include="$(MSBuildProjectFullPath)">
        <Version>1</Version>
        <Source>$(PackageId)</Source>
        <StaticWebAssetProjectMode>Default</StaticWebAssetProjectMode>
        <GetBuildAssetsTargets>GetCurrentProjectStaticWebAssetsV2</GetBuildAssetsTargets>
        <AdditionalBuildProperties>$(StaticWebAssetsAdditionalBuildProperties)</AdditionalBuildProperties>
        <AdditionalBuildPropertiesToRemove>$(StaticWebAssetsAdditionalBuildPropertiesToRemove)</AdditionalBuildPropertiesToRemove>
        <GetPublishAssetsTargets></GetPublishAssetsTargets>
      </_StaticWebAssetThisProjectConfiguration>
    </ItemGroup>
  </Target>

  <PropertyGroup>
    <GetCurrentProjectStaticWebAssetsV2DependsOn>GetCurrentProjectStaticWebAssets;$(GetCurrentProjectStaticWebAssetsV2DependsOn);</GetCurrentProjectStaticWebAssetsV2DependsOn>
  </PropertyGroup>

  <Target Name="GetCurrentProjectStaticWebAssetsV2" DependsOnTargets="$(GetCurrentProjectStaticWebAssetsV2DependsOn)" Returns="@(_ThisProjectStaticWebAssetItems)">
    <ItemGroup>
      <_StaticWebAssetUpgradeMetadataToKeep Include="SourceType" />
      <_StaticWebAssetUpgradeMetadataToKeep Include="SourceId" />
      <_StaticWebAssetUpgradeMetadataToKeep Include="BasePath" />
      <_StaticWebAssetUpgradeMetadataToKeep Include="RelativePath" />
      <_StaticWebAssetUpgradeMetadataToKeep Include="ContentRoot" />
      <_StaticWebAssetUpgradeMetadataToKeep Include="AssetKind" />
      <_StaticWebAssetUpgradeMetadataToKeep Include="AssetMode" />
      <_StaticWebAssetUpgradeMetadataToKeep Include="AssetRole" />
      <_StaticWebAssetUpgradeMetadataToKeep Include="RelatedAsset" />
      <_StaticWebAssetUpgradeMetadataToKeep Include="AssetTraitName" />
      <_StaticWebAssetUpgradeMetadataToKeep Include="AssetTraitValue" />
      <_StaticWebAssetUpgradeMetadataToKeep Include="CopyToOutputDirectory" />
      <_StaticWebAssetUpgradeMetadataToKeep Include="CopyToPublishDirectory" />
      <_StaticWebAssetUpgradeMetadataToKeep Include="OriginalItemSpec" />

      <_ThisProjectStaticWebAssetItems KeepMetadata="@(_StaticWebAssetUpgradeMetadataToKeep)" Include="@(_ThisProjectStaticWebAssets->'%(FullPath)')">
        <ResultType>StaticWebAsset</ResultType>
        <SourceType>Project</SourceType>
        <AssetKind Condition="'%(_ThisProjectStaticWebAssets.AssetKind)' == ''">All</AssetKind>
        <AssetMode Condition="'%(_ThisProjectStaticWebAssets.AssetMode)' == ''">All</AssetMode>
        <AssetRole Condition="'%(_ThisProjectStaticWebAssets.AssetRole)' == ''">Primary</AssetRole>
        <RelatedAsset Condition="'%(_ThisProjectStaticWebAssets.RelatedAsset)' == ''"></RelatedAsset>
        <AssetTraitName Condition="'%(_ThisProjectStaticWebAssets.AssetTraitName)' == ''"></AssetTraitName>
        <AssetTraitValue Condition="'%(_ThisProjectStaticWebAssets.AssetTraitValue)' == ''"></AssetTraitValue>
        <CopyToOutputDirectory Condition="'%(_ThisProjectStaticWebAssets.CopyToOutputDirectory)' == ''">Never</CopyToOutputDirectory>
        <CopyToPublishDirectory  Condition="'%(_ThisProjectStaticWebAssets.CopyToPublishDirectory)' == ''">PreserveNewest</CopyToPublishDirectory>
        <OriginalItemSpec Condition="'%(_ThisProjectStaticWebAssets.OriginalItemSpec)' == ''">%(_ThisProjectStaticWebAssets.Identity)</OriginalItemSpec>
      </_ThisProjectStaticWebAssetItems>
      <_ThisProjectStaticWebAssetItems Include="$(PackageId)\wwwroot" Condition="Exists('$(MSBuildProjectDirectory)\wwwroot')">
        <ResultType>StaticWebAssetDiscoveryPattern</ResultType>
        <ContentRoot>$(MSBuildProjectDirectory)\wwwroot\</ContentRoot>
        <BasePath>$(StaticWebAssetBasePath)</BasePath>
        <Source>$(PackageId)</Source>
        <Pattern>**</Pattern>
      </_ThisProjectStaticWebAssetItems>
    </ItemGroup>
  </Target>

  <!--
    ============================================================
                                        Static web assets packing related targets

    The main targets to enable auto-packing of static web assets.
    ============================================================
    -->

  <!-- We need to remove any content item under wwwroot right before packing to prevent it from getting included
       in the package as content or contentFiles. Unfortunately marking it with pack=false doesn't work as it also
       prevents the content from being packed even though we are including it explictily in
       GenerateStaticWebAssetsPackTargets
   -->
  <Target Name="_RemoveWebRootContentFromPackaging" DependsOnTargets="ResolveStaticWebAssetsInputs">
    <ItemGroup>
      <Content
        Condition="'%(StaticWebAsset.SourceType)' == ''"
        Remove="@(StaticWebAsset->'wwwroot\%(RelativePath)')"  />
    </ItemGroup>
  </Target>

  <Target
    Name="_CreateStaticWebAssetsCustomPropsCacheFile"
    DependsOnTargets="_PrepareForStaticWebAssets">

    <ItemGroup>
      <!-- This is the list of inputs that will be used for generating the props file that will be packed with
      the package.  -->
      <_CurrentProjectStaticWebAsset
        Include="@(StaticWebAsset)"
        Condition="'%(SourceType)' == ''" />
    </ItemGroup>

    <Hash ItemsToHash="@(_CurrentProjectStaticWebAsset->'%(BasePath)%(SourceId)')">
      <Output TaskParameter="HashResult" PropertyName="_StaticWebAssetsPropsFileHash" />
    </Hash>

    <WriteLinesToFile
      Lines="$(_StaticWebAssetsPropsFileHash)"
      File="$(_GeneratedStaticWebAssetsCustomPropsCacheFile)"
      Overwrite="True"
      WriteOnlyWhenDifferent="True" />

    <ItemGroup>
      <FileWrites Include="$(_GeneratedStaticWebAssetsCustomPropsCacheFile)" />
    </ItemGroup>

  </Target>

  <!-- This target makes sure that all static web assets for the current project get included
       in the package under the folder staticwebassets and generates MSBuild props files to
       ensure that consuming packages can discover and use the static web assets.
       This target generates and includes a Microsoft.AspNetCore.StaticWebAssets.props file that
       goes inside the build directory and describes the static web assets in the package as an
       item group.
       This target also generates and includes a $(PackageId).props file under the build, buildMultiTargeting
       and buildTransitive folders that are setup so that:
       * buildTransitive\$(PackageId).props simply imports buildMultitargeting\$(PackageId).props
       * buildMultitargeting\$(PackageId).props simply imports build\$(PackageId).props
       * build\$(PackageId).props simply imports Microsoft.AspNetCore.StaticWebAssets.props

       We do it this way to preserve the ability of package authors to customize the package in any way
       they see fit and to make sure the package works in all scenarios. Authors including custom MSBuild
       targets into their packages are expected to disable the generation of $(PackageId).props files and
       to manually import build\Microsoft.AspNetCore.StaticWebAssets.props in their custom props files.
   -->
  <Target
    Name="GenerateStaticWebAssetsPackTargets"
    DependsOnTargets="$(GenerateStaticWebAssetsPackTargetsDependsOn)"
    Inputs="$(_GeneratedStaticWebAssetsCustomPropsCacheFile)"
    Outputs="$(_GeneratedStaticWebAssetsPropsFile)">

    <PropertyGroup>
      <_CurrentProjectHasStaticWebAssets Condition="'@(_CurrentProjectStaticWebAsset->Count())' != '0'">true</_CurrentProjectHasStaticWebAssets>
    </PropertyGroup>

    <!-- Validate that there are no path conflicts between the assets we are about to pack. -->
    <ValidateStaticWebAssetsUniquePaths Condition="'$(_CurrentProjectHasStaticWebAssets)' == 'true'"
      StaticWebAssets="@(_CurrentProjectStaticWebAsset)"
      WebRootFiles="" />

    <!-- Generates a props file that goes in build\Microsoft.AspNetCore.StaticWebAssets.props
         and that describes the static web assets for the package.
     -->
    <GenerateStaticWebAsssetsPropsFile
      Condition="'$(_CurrentProjectHasStaticWebAssets)' == 'true'"
      StaticWebAssets="@(_CurrentProjectStaticWebAsset)"
      AllowEmptySourceType="true"
      TargetPropsFilePath="$(_GeneratedStaticWebAssetsPropsFile)" />

    <!-- Generates a props file the goes in build\$(PackageId).props and that simply imports
         build\Microsoft.AspNetCore.StaticWebAssets.props
     -->
    <StaticWebAssetsGeneratePackagePropsFile
      Condition="'$(_CurrentProjectHasStaticWebAssets)' == 'true'"
      PropsFileImport="$(_StaticWebAssetsPropsFileImportPath)"
      BuildTargetPath="$(_GeneratedBuildPropsFile)" />

    <!-- Generates a props file the goes in buildMultiTargeting\$(PackageId).props and that simply imports
         build\$(PackageId).props
     -->
    <StaticWebAssetsGeneratePackagePropsFile
      Condition="'$(_CurrentProjectHasStaticWebAssets)' == 'true'"
      PropsFileImport="$(_StaticWebAssetsGeneratedBuildPropsFileImportPath)"
      BuildTargetPath="$(_GeneratedBuildMultitargetingPropsFile)" />

    <!-- Generates a props file the goes in buildTransitive\$(PackageId).props and that simply imports
         buildMultiTargeting\$(PackageId)
     -->
    <StaticWebAssetsGeneratePackagePropsFile
      Condition="'$(_CurrentProjectHasStaticWebAssets)' == 'true'"
      PropsFileImport="$(_StaticWebAssetsGeneratedBuildMultiTargetingPropsFileImportPath)"
      BuildTargetPath="$(_GeneratedBuildTransitivePropsFile)" />

    <!-- All files potentially created within this target -->
    <ItemGroup>
      <FileWrites Include="$(_GeneratedStaticWebAssetsPropsFile)" />
      <FileWrites Include="$(_GeneratedBuildPropsFile)" />
      <FileWrites Include="$(_GeneratedBuildMultitargetingPropsFile)" />
      <FileWrites Include="$(_GeneratedBuildTransitivePropsFile)" />
    </ItemGroup>

  </Target>

  <Target Name="IncludeStaticWebAssetPackItems">

    <ItemGroup>
      <!-- This is the list of inputs that will be used for generating the props file that will be packed with
      the package.  -->
      <_CurrentProjectStaticWebAsset
        Include="@(StaticWebAsset)"
        Condition="'%(SourceType)' == ''" />
    </ItemGroup>

    <PropertyGroup>
      <_CurrentProjectHasStaticWebAssets Condition="'@(_CurrentProjectStaticWebAsset->Count())' != '0'">true</_CurrentProjectHasStaticWebAssets>
    </PropertyGroup>

    <!-- All files that go into the nuget package -->
    <ItemGroup Condition="'$(_CurrentProjectHasStaticWebAssets)' == 'true'">

      <!-- MSBuild prop files -->

      <TfmSpecificPackageFile Include="$(_GeneratedStaticWebAssetsPropsFile)"
        Condition="'$(DisableStaticWebAssetsBuildPropsFileGeneration)' == ''">

        <PackagePath>build\Microsoft.AspNetCore.StaticWebAssets.props</PackagePath>
      </TfmSpecificPackageFile>

      <TfmSpecificPackageFile Include="$(_GeneratedBuildPropsFile)"
        Condition="'$(StaticWebAssetsDisableProjectBuildPropsFileGeneration)' == ''">

        <PackagePath>build\$(PackageId).props</PackagePath>
      </TfmSpecificPackageFile>

      <TfmSpecificPackageFile Include="$(_GeneratedBuildMultitargetingPropsFile)"
        Condition="'$(StaticWebAssetsDisableProjectBuildMultiTargetingPropsFileGeneration)' == ''">

        <PackagePath>buildMultiTargeting\$(PackageId).props</PackagePath>
      </TfmSpecificPackageFile>

      <TfmSpecificPackageFile Include="$(_GeneratedBuildTransitivePropsFile)"
        Condition="'$(StaticWebAssetsDisableProjectBuildTransitivePropsFileGeneration)' == ''">

        <PackagePath>buildTransitive\$(PackageId).props</PackagePath>
      </TfmSpecificPackageFile>

      <!-- Project file contents -->

      <TfmSpecificPackageFile Include="%(_CurrentProjectStaticWebAsset.Identity)">
        <PackagePath>staticwebassets\%(_CurrentProjectStaticWebAsset.RelativePath)</PackagePath>
      </TfmSpecificPackageFile>
    </ItemGroup>

  </Target>

    <!-- This target is invoked in cross targeting builds to resolve the paths for the pack and build manifests.
         Since for static web assets V1 there is no build manifest, the cross build targets remove the items
         included in the pack manifest from the relevant content item groups.  -->
  <Target Name="ResolveStaticWebAssetsManifestPaths" DependsOnTargets="ResolveStaticWebAssetsInputs" Returns="@(_StaticWebAssetsManifestPaths)">

    <ItemGroup>

      <StaticWebAssetPackageFile Include="$(_GeneratedStaticWebAssetsPropsFile)" Condition="'$(DisableStaticWebAssetsBuildPropsFileGeneration)' == ''">
        <PackagePath>build\Microsoft.AspNetCore.StaticWebAssets.props</PackagePath>
      </StaticWebAssetPackageFile>

      <StaticWebAssetPackageFile Include="$(_GeneratedBuildPropsFile)" Condition="'$(StaticWebAssetsDisableProjectBuildPropsFileGeneration)' == ''">
        <PackagePath>build\$(PackageId).props</PackagePath>
      </StaticWebAssetPackageFile>

      <StaticWebAssetPackageFile Include="$(_GeneratedBuildMultitargetingPropsFile)" Condition="'$(StaticWebAssetsDisableProjectBuildMultiTargetingPropsFileGeneration)' == ''">
        <PackagePath>buildMultiTargeting\$(PackageId).props</PackagePath>
      </StaticWebAssetPackageFile>

      <StaticWebAssetPackageFile Include="$(_GeneratedBuildTransitivePropsFile)" Condition="'$(StaticWebAssetsDisableProjectBuildTransitivePropsFileGeneration)' == ''">
        <PackagePath>buildTransitive\$(PackageId).props</PackagePath>
      </StaticWebAssetPackageFile>

      <_PackStaticWebAssetWithTargetPath
        Include="@(StaticWebAsset)"
        Condition="'%(SourceType)' == ''">
        <TargetPath>staticwebassets\%(StaticWebAsset.RelativePath)</TargetPath>
      </_PackStaticWebAssetWithTargetPath>
    </ItemGroup>

    <StaticWebAssetsGeneratePackManifest
      Assets="@(_PackStaticWebAssetWithTargetPath)"
      AdditionalPackageFiles="@(StaticWebAssetPackageFile->'%(FullPath)')"
      AdditionalElementsToRemoveFromPacking="@(_ThisProjectStaticWebAsset)"
      ManifestPath="$(_GeneratedStaticWebAssetsPackManifest)">
    </StaticWebAssetsGeneratePackManifest>

    <ItemGroup>
      <_StaticWebAssetsManifestPaths Include="$(MSBuildProjectName)">
        <BuildManifest></BuildManifest>
        <PackManifest>$(_GeneratedStaticWebAssetsPackManifest)</PackManifest>
      </_StaticWebAssetsManifestPaths>
    </ItemGroup>
  </Target>

  <!--
    ============================================================
                                        Static web assets publish related targets

    The main targets for publishing static web assets coming from referenced projects
    and packages.
    ============================================================
    -->

    <!--
    Called after ComputeResolvedFilesToPublishList but before CopyFilesToPublishDirectory - this target is called when
    publishing the project to get a list of files to the output directory.
  -->
  <Target
    Name="_StaticWebAssetsComputeFilesToPublish"
    AfterTargets="ComputeResolvedFilesToPublishList"
    DependsOnTargets="ResolveStaticWebAssetsInputs">

    <ItemGroup>

      <!-- Filter the static web assets foreign to the project and then add them to the list of resolved
           files to publish.
       -->
      <_ExternalPublishStaticWebAsset
        Include="%(StaticWebAsset.FullPath)"
        Condition="'%(SourceType)' != '' AND '%(StaticWebAsset.CopyToPublishDirectory)' != 'Never'">

        <CopyToPublishDirectory>PreserveNewest</CopyToPublishDirectory>
        <RelativePath>$([MSBuild]::MakeRelative('$(MSBuildProjectDirectory)','$([MSBuild]::NormalizePath('wwwroot\%(BasePath)\%(RelativePath)'))'))</RelativePath>
      </_ExternalPublishStaticWebAsset>

      <!-- Remove any existing external static web asset that might have been added as part of the
           regular publish pipeline. -->
      <ResolvedFileToPublish Remove="@(_ExternalPublishStaticWebAsset)" />

      <ResolvedFileToPublish Include="@(_ExternalPublishStaticWebAsset)">
        <ExcludeFromSingleFile>true</ExcludeFromSingleFile>
      </ResolvedFileToPublish>
    </ItemGroup>

  </Target>

  <Import Project="Microsoft.NET.Sdk.StaticWebAssets.ScopedCss.5_0.targets" Condition="'$(UsingMicrosoftNETSdkRazor)' == 'true' And '$(ScopedCssEnabled)' == 'true'" />

</Project>
