MSBUild：复制基于原始名称的文件（遵循模式） [英] MSBUild: Copy files with a name based on the original (following a pattern)

问题描述

我在文件夹中有一组文件。它们都有一个与模式DR __。*匹配的名称。我想将它们复制到另一个文件夹，但删除DR__前缀。我如何做到这一点与MSBuild？我以前这样使用NAnt：

I have a set of files inside a folder. They all have a name which matches the pattern DR__.*. I want to copy them to another folder, but removing the DR__ prefix. How can I do this with MSBuild? I used to do it like this using NAnt:

<mkdir dir="${ClientPath + '\bin\' + ConfigurationName + '\Parameters'}"/>
<foreach item="File" property="Filename" in="CVParameters">
    <if test="${string::contains(Filename, Client + '_')}">
        <property name="newFilename" value="${ string::substring( Filename, string::last-index-of(Filename, '__') + 2, string::get-length(Filename) - string::last-index-of(Filename, '__') - 2) }"/>
        <copy file="${ Filename  }" tofile="${ ClientPath + '\bin\' + ConfigurationName + '\Parameters\' + newFilename }" overwrite="true"/>
    </if>
</foreach>

推荐答案

我同意@ Si的解决方案。但是使用MSBuild 4.0，你可以使用内置的功能。 NAnt脚本比我清楚得多。但我将它添加为解决方案只是为了展示MSBuild 4.0技术：

I agree with @Si's solution. But with MSBuild 4.0 you can do it with built in functionality. NAnt script is much clearer than mine. But I will add it as a solution just to show MSBuild 4.0 techniques:

    <ItemGroup>
       <CVParameters Include="$(YourBaseDir)\**\DR__*" />
    </ItemGroup>

    <Target Name="CopyAndRename" 
            Condition="'@(CVParameters)'!=''"
            Outputs="%(CVParameters.Identity)">
         <PropertyGroup>
            <OriginalFileName>%(CVParameters.FileName)%(CVParameters.Extension)</OriginalFileName>          
            <Prefix>DR__</Prefix>
            <PrefixLength>$(Prefix.Length)</PrefixLength>
            <OriginalFileNameLength>$(OriginalFileName.Length)</OriginalFileNameLength>
            <SubstringLength>$([MSBuild]::Subtract($(OriginalFileNameLength),$(PrefixLength)))</SubstringLength>
            <ModifiedFileName>$(OriginalFileName.Substring($(PrefixLength),$(SubstringLength)))</ModifiedFileName>
            <DestinationFullPath>$([System.IO.Path]::Combine($(DestinationDir),$(ModifiedFileName)))</DestinationFullPath>
         </PropertyGroup>                                                                                                                                         

         <Copy SourceFiles="%(CVParameters.FullPath)" 
               DestinationFiles="@(DestinationFullPath)" 
               SkipUnchangedFiles="true" />
    </Target>

编辑（通过OP）：为了使这个工作，我不得不替换在中使用 @（DestinationFullPath）复制中的$（DestinationFullPath）源文件和目标文件。此外，我不得不更改前缀到 DR __ ，因为 DR __。将无法工作。

Edit (by OP): To get this working, I had to replace $(DestinationFullPath)in Copy with @(DestinationFullPath), to match the number of Source and Destination Files. Also, I had to change the prefix to DR__, since DR__. wouldn't work.

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