VS2022中.NET Framework4.8项目如何配置TT文件仅在Release模式生成？

我正在使用VS2022开发目标框架为.NET Framework 4.8的C#项目，需要为Debug和Release模式配置差异化设置：仅在Release模式下将.tt文件加入项目并启用代码生成，Debug模式下不执行此操作*。

具体来说，我希望以下配置仅在Release编译时生效，Debug模式下不生效：

<ItemGroup>
  <Content Include="..\AssemblyCopyright.tt">
    <Link>Properties\AssemblyCopyright.tt</Link>
    <Generator>TextTemplatingFileGenerator</Generator>
    <LastGenOutput>AssemblyCopyright.cs</LastGenOutput>
  </Content>
</ItemGroup>

动机 #

需要根据当前年份动态生成版权声明，因此采用代码模板（TT）生成方式实现，但该操作会减慢编译速度。因此仅希望在为用户构建Release版本时生成版权声明，调试测试时不生成。

问题重现 #

我尝试给ItemGroup添加条件<ItemGroup Condition=" '$(Configuration)' == 'Release' ">，但该方案无效——无论Debug还是Release模式，版权声明都会生成。以下是测试项目的相关代码：

项目文件（.csproj）内容 #

<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
  <PropertyGroup>
    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
    <ProjectGuid>{333D8793-BFF2-47E0-902D-FA2BC8D797C0}</ProjectGuid>
    <OutputType>Exe</OutputType>
    <RootNamespace>WithoutCopyExe</RootNamespace>
    <AssemblyName>WithoutCopyExe</AssemblyName>
    <TargetFrameworkVersion>v4.8</TargetFrameworkVersion>
    <FileAlignment>512</FileAlignment>
    <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
    <Deterministic>true</Deterministic>
  </PropertyGroup>
  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
    <PlatformTarget>AnyCPU</PlatformTarget>
    <DebugSymbols>true</DebugSymbols>
    <DebugType>full</DebugType>
    <Optimize>false</Optimize>
    <OutputPath>bin\Debug\</OutputPath>
    <DefineConstants>DEBUG;TRACE</DefineConstants>
    <ErrorReport>prompt</ErrorReport>
    <WarningLevel>4</WarningLevel>
  </PropertyGroup>
  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
    <PlatformTarget>AnyCPU</PlatformTarget>
    <DebugType>pdbonly</DebugType>
    <Optimize>true</Optimize>
    <OutputPath>bin\Release\</OutputPath>
    <DefineConstants>TRACE</DefineConstants>
    <ErrorReport>prompt</ErrorReport>
    <WarningLevel>4</WarningLevel>
  </PropertyGroup>
  <ItemGroup>
    <Reference Include="System" />
    <Reference Include="System.Core" />
    <Reference Include="System.Xml.Linq" />
    <Reference Include="System.Data.DataSetExtensions" />
    <Reference Include="Microsoft.CSharp" />
    <Reference Include="System.Data" />
    <Reference Include="System.Net.Http" />
    <Reference Include="System.Xml" />
  </ItemGroup>
  <ItemGroup>
    <Compile Include="Program.cs" />
    <Compile Include="Properties\AssemblyCopyright.cs">
      <DependentUpon>AssemblyCopyright.tt</DependentUpon>
      <DesignTime>True</DesignTime>
      <AutoGen>True</AutoGen>
    </Compile>
    <Compile Include="Properties\AssemblyInfo.cs" />
  </ItemGroup>
  <ItemGroup>
    <None Include="App.config" />
  </ItemGroup>
  <ItemGroup>
    <Service Include="{508349B6-6B84-4DF5-91F0-309BEEBAD82D}" />
  </ItemGroup>
  <ItemGroup  Condition=" '$(Configuration)' == 'Release' ">
    <Content Include="Properties\AssemblyCopyright.tt">
      <Generator>TextTemplatingFileGenerator</Generator>
      <LastGenOutput>AssemblyCopyright.cs</LastGenOutput>
    </Content>
  </ItemGroup>
  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
</Project>

TT文件（AssemblyCopyright.tt）内容 #

<#@ template language="C#" #>
// Generate copyright dynamically.

using System;
using System.Reflection;

[assembly: AssemblyCopyright("Hurray @ <#=DateTime.Now.Year#>")]

AssemblyInfo.cs内容（未定义版权声明） #

using System.Reflection;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;

// General Information about an assembly is controlled through the following
// set of attributes. Change these attribute values to modify the information
// associated with an assembly.
[assembly: AssemblyTitle("CopyrightNotice")]
[assembly: AssemblyDescription("")]
[assembly: AssemblyConfiguration("")]
[assembly: AssemblyCompany("")]
[assembly: AssemblyProduct("CopyrightNotice")]
[assembly: AssemblyTrademark("")]
[assembly: AssemblyCulture("")]

// Setting ComVisible to false makes the types in this assembly not visible
// to COM components.  If you need to access a type in this assembly from
// COM, set the ComVisible attribute to true on that type.
[assembly: ComVisible(false)]

// The following GUID is for the ID of the typelib if this project is exposed to COM
[assembly: Guid("d6e52005-9be0-4571-b3fc-37c36c8c963b")]

// Version information for an assembly consists of the following four values:
//
//      Major Version
//      Minor Version
//      Build Number
//      Revision
//
// You can specify all the values or you can default the Build and Revision Numbers
// by using the '*' as shown below:
// [assembly: AssemblyVersion("1.0.*")]
[assembly: AssemblyVersion("1.0.0.0")]
[assembly: AssemblyFileVersion("1.0.0.0")]

内容的提问来源于stack exchange，提问作者Graviton