如何从 MSBuild 将变量值输出到日志

问题描述

如何将变量值从 MSBuild 输出到日志?

How do I output a variable value to the log from MSBuild?

我正在尝试调试 MSBuild 脚本并希望将变量的值输出到日志.

I am trying to debug an MSBuild script and would like to output a variable's value to the log.

推荐答案

其实可以现在使用 Visual Studio 2010 调试 MSBuild 脚本.它需要一些黑客攻击，并且不受官方支持，但它是一种选择.

You can actually debug MSBuild scripts with Visual Studio 2010 now. It requires some hacking, and it isn't officially supported, but it is an option.

否则使用 Message 任务.引用 Properties 的常规规则、项目和Item Metadata(也称为 批处理)申请.

Otherwise use the Message task. Normal rules for referencing Properties, Items and Item Metadata (also referred to as batching) apply.

这个例子:

<Project DefaultTargets="Build"
         xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
  <ItemGroup>
    <TestItem Include="test1" />
    <TestItem Include="test2" />
    <TestItem Include="test3" />
  </ItemGroup>

  <PropertyGroup>
    <TestProperty>Property Value</TestProperty>
  </PropertyGroup>

  <Target Name="TestMessage" AfterTargets="Build" >

    <!-- Use $(Property Name) to reference a property -->
    <Message Text="$(TestProperty)" Importance="high"/>

    <!-- Use @(Item Name) to output a semi-colon
         separated list of items on one line      -->
    <Message Text="@(TestItem)" Importance="high"/>

    <!-- Use %(Item Name.Metadata Property Name) to 
         call the Message task once for each item.   -->
    <!-- This will output each item on a separate line -->
    <Message Text="%(TestItem.Identity)" Importance="high"/>

  </Target>
</Project>

将产生这个输出:

Property Value
test1;test2;test3
test1
test2
test3

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