<ItemGroup>
<!-- Unit Test Projects-->
<MyGroup Include="Hello.xml" />
<MyGroup Include="GoodBye.xml" />
</ItemGroup>
如何创建一个遍历此列表并执行某些操作的任务?
<XmlPeek XmlInputPath="%(MyGroup.Identity)"
Query="/results">
<Output TaskParameter="Result"
ItemName="myResult" />
</XmlPeek>
如果我的结果里面有一个特定的文本,我想要显示一条错误消息。然而,对于我来说,我不知道如何在Msbuild中迭代数组……有人知道怎么做到这一点吗?
发布于 2010-06-15 22:32:18
您可以在内部目标上使用batching,如下所示:
<ItemGroup>
<!-- Unit Test Projects-->
<MyGroup Include="Hello.xml" />
<MyGroup Include="GoodBye.xml" />
</ItemGroup>
<Target Name="CheckAllXmlFile">
<!-- Call CheckOneXmlFile foreach file in MyGroup -->
<MSBuild Projects="$(MSBuildProjectFile)"
Properties="CurrentXmlFile=%(MyGroup.Identity)"
Targets="CheckOneXmlFile">
</MSBuild>
</Target>
<!-- This target checks the current analyzed file $(CurrentXmlFile) -->
<Target Name="CheckOneXmlFile">
<XmlPeek XmlInputPath="$(CurrentXmlFile)"
Query="/results/text()">
<Output TaskParameter="Result" ItemName="myResult" />
</XmlPeek>
<!-- Throw an error message if Result has a certain text : ERROR -->
<Error Condition="'$(Result)' == 'ERROR'"
Text="Error with results $(Result)"/>
</Target>
发布于 2010-06-15 22:37:33
为此,您需要使用批处理。批处理将基于元数据键迭代一组项。我在http://sedotech.com/Resources#batching上整理了一堆关于这方面的资料。例如,看一下这个简单的MSBuild文件。
<Project DefaultTargets="Demo" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<ItemGroup>
<Files Include="one.txt"/>
<Files Include="two.txt"/>
<Files Include="three.txt"/>
<Files Include="four.txt"/>
</ItemGroup>
<Target Name="Demo">
<Message Text="Not batched: @(Files->'%(Identity)')"/>
<Message Text="========================================"/>
<Message Text="Batched: %(Files.Identity)"/>
</Target>
</Project>
当您构建Demo目标时,结果是
Not batched: one.txt;two.txt;three.txt;four.txt
========================================
Batched: one.txt
Batched: two.txt
Batched: three.txt
Batched: four.txt
批处理始终使用语法%(Xyz.Abc)
。仔细查看这些链接,可以获得更多关于批处理的信息,这是你想知道的。
https://stackoverflow.com/questions/3045821
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