如何使用MSBuild的"afterbuild"任务来编辑.config文件? [英] How can I use MSBuild 'afterbuild' tasks to edit a .config file?

问题描述

我在目标项目中有一个.config，我需要通过MSBuild任务以编程方式向其中添加一行.

I have a .config in a target project and I need to add a line to it programmatically via an MSBuild task.

像这样的Pseduo操作:

Pseduo operations like:

• 找到目标.config文件
• 确定新节点的属性值(例如，"package"节点的"id"和"version")
• 在正确的父节点中插入新节点
• 保存更改

位于$ TargetProjectDir \ Config \ packages.config的.config文件:

The .config file at $TargetProjectDir\Config\packages.config:

<?xml version="1.0" encoding="utf-8"?>
<packages>
  <package id="ABC" version="1.1.0.4" />
  <package id="XYZ" version="2.0.0.0" />
</packages>

之后需要像这样:

<?xml version="1.0" encoding="utf-8"?>
<packages>
  <package id="ABC" version="1.1.0.4" />
  <package id="XYZ" version="2.0.0.0" />
  <package id="CarDataWidget" version="3.0.0.0" />
</packages>

到目前为止，我已经考虑过使用内联任务"，"EXEC"任务和"XmlPoke"任务，但尚未设法使它们中的任何一个起作用.

So far i've considered using 'inline tasks', the 'EXEC' task and 'XmlPoke' task but haven't managed to get any of them working.

这是我尝试使用XmlPoke和XmlPeek的方法:

Here is my attempt with XmlPoke and XmlPeek:

我以下面的文章作为启发，介绍了如何将节点添加到packages.config文件: http://weblogs .asp.net/bsimser/appending-nodes-in-xml-files-with-xmlpeek-and-xmlpoke-using-nant

I used the following article as an inspiration on how to add nodes to the packages.config file: http://weblogs.asp.net/bsimser/appending-nodes-in-xml-files-with-xmlpeek-and-xmlpoke-using-nant

  <Target Name="AfterBuild" DependsOnTargets="AddPackage">
  </Target>
  <Target Name="AddPackage">
    <!-- Load existing nodes into a Property -->
    <XmlPeek XmlInputPath="config/packages.config" Query="/packages/package" >
      <Output TaskParameter="Result" PropertyName="Peeked" />
    </XmlPeek>
    <Message Text="From Peek: $(Peeked)"></Message>

    <!-- Load new node into Property -->
    <PropertyGroup>
      <WidgetName>CarDataWidget</WidgetName>
      <WidgetVersion>2.0.0.0</WidgetVersion>
      <NewNode>&lt;package id&#61;&quot;$(WidgetName)&quot; version&#61;&quot;$(WidgetVersion)&quot; /&gt;</NewNode>

    <!-- Concatenate existing and new node into a Property -->
      <ConcatenatedNodes>$(Peeked)$(NewNode)</ConcatenatedNodes>
    </PropertyGroup>
    <Message Text="New pacakges: $(ConcatenatedNodes)"></Message>

    <!-- Replace existing nodes with concatenated nodes -->
    <XmlPoke Value="$(ConcatenatedNodes)" XmlInputPath="config/packages.config" Query="/packages">
    </XmlPoke>
  </Target>

上述构建的输出为:

1>AddPackage:
1>  From Peek: <package id="ABC" version="1.1.0.4" />;<package id="XYZ" version="2.0.0.0" />
1>  New pacakges: <package id="ABC" version="1.1.0.4" />;<package id="XYZ" version="2.0.0.0" /><package id="CarDataWidget" version="2.0.0.0" />
1>  C:\_dev\CarDataWidget.csproj(184,14): 
    error MSB4094: "<package id="ABC" version="1.1.0.4" />;<package id="XYZ" version="2.0.0.0" /><package id="CarDataWidget" version="2.0.0.0" />" 
    is an invalid value for the "Value" parameter of the "XmlPoke" task. 
    Multiple items cannot be passed into a parameter of type "Microsoft.Build.Framework.ITaskItem".
1>
1>Build FAILED.

问题: 如何将其添加到具有现有包节点的.config文件中??

THE QUESTION: How can get it to add to a .config file with existing package nodes???

推荐答案

我遇到了同样的问题.我在此处找到了解决方案.

I had the same problem. I found the solution here.

问题在于XmlPoke认为分号是一个值分隔符.

The problem is than XmlPoke considers semicolon as a value separator.

应替换为:

<NewNode>&lt;package id&#61;&quot;$(WidgetName)&quot; version&#61;&quot;$(WidgetVersion)&quot; /&gt;</NewNode>

使用:

<NewNode>&lt%3Bpackage id&#61%3B&quot%3B$(WidgetName)&quot%3B version&#61%3&quot%3$(WidgetVersion)&quot%3 /&gt%3</NewNode>

必须用安全性％3B

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