仅复制已更改的文件

Question

如果它们被更改，我需要在构建后复制一些文件。以下是我的复制脚本：

  <Target Name="CopyFiles" AfterTargets="Build">
    <ItemGroup>
      <DeployFileGroup Include="**\*.json;**\*.png;**\*.wav;**\*.mp3;" />
    </ItemGroup>
    <Copy SourceFiles="@(DeployFileGroup)"
      DestinationFolder="C:\Test"/>
  </Target>

但是每次构建项目时它都会执行，我希望它只是在修改文件时执行。

Answer 1

我希望它在文件被修改时执行。

您可以将 SkipUnchangedFiles 设置为 true 以实现您的要求。

  <Target Name="CopyFiles" AfterTargets="Build">
    <ItemGroup>
      <DeployFileGroup Include="**\*.json;**\*.png;**\*.wav;**\*.mp3;" />
    </ItemGroup>
    <Copy SourceFiles="@(DeployFileGroup)"
      DestinationFolder="C:\Test" SkipUnchangedFiles="true"
      />
  </Target>

使用此设置，这些文件仅在更改时才被复制。如果没有，他们不会复制，然后给你这样的消息：

1>Task "Copy"
1>  Did not copy from file "Test.json" to file "C:\Test\Test.json" because the "SkipUnchangedFiles" parameter was set to "true" in the project and the files' sizes and timestamps match.
1>  Did not copy from file "Test1.json" to file "C:\Test\Test1.json" because the "SkipUnchangedFiles" parameter was set to "true" in the project and the files' sizes and timestamps match.
1>  Did not copy from file "Test.png" to file "C:\Test\Test.png" because the "SkipUnchangedFiles" parameter was set to "true" in the project and the files' sizes and timestamps match.
1>  Did not copy from file "Test1.png" to file "C:\Test\Test1.png" because the "SkipUnchangedFiles" parameter was set to "true" in the project and the files' sizes and timestamps match.
1>  Did not copy from file "Test.wav" to file "C:\Test\Test.wav" because the "SkipUnchangedFiles" parameter was set to "true" in the project and the files' sizes and timestamps match.
1>  Did not copy from file "Test1.mp3" to file "C:\Test\Test1.mp3" because the "SkipUnchangedFiles" parameter was set to "true" in the project and the files' sizes and timestamps match.
1>Done executing task "Copy".

希望这会有所帮助。