如何用MSBuild创建XML文件？

Question

我想在MSBuild任务中创建一个XML文件。

我有一个文件列表：

<CreateItem Include="$(TestsAssembliesOutputDir)\Emidee.*.Tests.dll">
  <Output ItemName="TestsAssemblies" TaskParameter="Include" />
</CreateItem>

我想创建一个XML，如下所示：

<?xml version="1.0" encoding="utf-8"?>
<xunit>
  <assemblies>
    <assembly filename="PATH OF FILE #1" shadow-copy="true" />
    <assembly filename="PATH OF FILE #2" shadow-copy="true" />
  </assemblies>
</xunit>

我怎样才能做到这一点呢？

提前感谢

麦克

Answer 1

又快又脏...

<Target Name="CreateXml">
  <ItemGroup>
    <TestAssembly Include="$(TestsAssembliesOutputDir)\Emidee.*.Tests.dll" />
    <Line Include="line01"><Text>&lt;xunit&gt;</Text></Line>
    <Line Include="line02"><Text>&lt;assemblies&gt;</Text></Line>
    <Line Include="line03"><Text>&lt;assembly filename=&quot;%(TestAssembly.Identity)&quot; shadow-copy=&quot;true&quot; /&gt;</Text></Line>
    <Line Include="line04"><Text>&lt;/assemblies&gt;</Text></Line>
    <Line Include="line05"><Text>&lt;/xunit&gt;</Text></Line>
    <LineText Include="%(Line.Text)" />
  </ItemGroup>
  <WriteLinesToFile
     File="out.xml"
     Lines="@(LineText)"
     Overwrite="true"
     />
</Target>

留下来作为练习

• 初始<？xml line
• Indentation (提示在<`Text>中使用CDATA )

您还可以在WriteLinesToFile中使用以下代码，并省略合成的@(LineText)

    Lines="@(Line->'%(Text)')"

Answer 2

MSBuild Extension Pack有XmlFile target。

Answer 3

一种选择是使用内联任务。这允许您编写任意的C#代码来生成Xml，这可能比替代解决方案更容易(也可能更难)。这是一个例子，我用它在我的构建中把一个NuGet nuspec文件拼凑在一起。

...
<UsingTask
        TaskName="CreateNugetPackage"
        TaskFactory="CodeTaskFactory"
        AssemblyFile="$(MSBuildToolsPath)\Microsoft.Build.Tasks.v4.0.dll"
    >
        <ParameterGroup>
            <ProjectName ParameterType="System.String" Required="true" />
            <Version ParameterType="System.String" Required="true" />
            <BaseFolder ParameterType="System.String" Required="true" />

            <Files ParameterType="Microsoft.Build.Framework.ITaskItem[]" Required="true" />
            <OutputFile ParameterType="Microsoft.Build.Framework.ITaskItem" Required="true" />
        </ParameterGroup>

        <Task>
            <Reference Include="System.Xml" />
            <Using Namespace="System" />
            <Using Namespace="System.Xml" />
            <Code Type="Fragment" Language="cs">
                <![CDATA[
                var root = Path.GetFullPath(BaseFolder);    

                using (var w = XmlWriter.Create(OutputFile.ItemSpec)) {
                    var ns = "http://schemas.microsoft.com/packaging/2010/07/nuspec.xsd";
                    w.WriteStartElement("package", ns);

                    w.WriteStartElement("metadata");

                    w.WriteStartElement("id");
                    w.WriteValue(ProjectName);
                    w.WriteEndElement();
                    w.WriteStartElement("version");
                    w.WriteValue(Version);
                    w.WriteEndElement();
                    w.WriteStartElement("description");
                    w.WriteValue("Test");
                    w.WriteEndElement();

                    w.WriteStartElement("authors");
                    w.WriteValue("Test");
                    w.WriteEndElement();

                    w.WriteEndElement();


                    w.WriteStartElement("files");

                    foreach(var file in Files) {
                        w.WriteStartElement("file");
                        var inFile = file.ItemSpec;
                        inFile = inFile.Replace(root, "");
                        w.WriteAttributeString("src", inFile);
                        w.WriteAttributeString("target", inFile);
                        w.WriteEndElement();
                    }

                    w.WriteEndElement();

                    w.WriteEndElement();
                }

    ]]>
            </Code>
        </Task>
    </UsingTask>


    <Target Name="CreateNuspec" BeforeTargets="BuildNugetPackage">

       <CreateNugetPackage
            Files="@(Artifacts)"
            OutputFile="$(NugetPackageSpec)"
            ProjectName="$(ProjectName)"
            BaseFolder="$(ArtifactRoot)"
            Version="$(Version)"
            />
    </Target>
...

一些相关文档：

UsingTaskElement

MSBuild inline tasks