XmlUpdate任务不更新我的XML文件

Question

I have the following task in an MSBuild script:

<XmlUpdate
    Namespace="http://schemas.microsoft.com/packaging/2010/07/nuspec.xsd"
    XmlFileName="$(PackageDir)\temp\OddEnds.Testing\OddEnds.Testing.nuspec"
    XPath="/package/metadata/version"
    Value="%(OddEndsTestingAsmInfo.Version)" />

which is supposed to update an empty version node in a NuGet specification file with the assembly version. My .nuspec file looks like this:

<?xml version="1.0" encoding="utf-8"?>
<package xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http:www.w3.org/2001/XMLSchema-instance">
    <metadata xmlns="http://schemas.microsoft.com/packaging/2010/07/nuspec.xsd">
        <id>OddEnds</id>
        <authors>Tomas Lycken</authors>

        <!-- Here's the node I want to update -->
        <version></version>

        <owners>Tomas Lycken</owners>
        <description>Odd ends and bits that I might need in any project.</description>
    </metadata>
</package>

I believe the XPath pointer /package/metadata/version points to the right node (since if I change it to something else, it complains about not finding the node) yet the output says 0 node(s) selected for update.

What am I missing?

Answer 1

You may need to include the namespace in your xpath string.

Check out this blog post: http://www.lesnikowski.com/blog/index.php/update-nuspec-version-from-msbuild/

You can also try //*:version. This will select all version elements regardless of namespace.

Answer 2

Your task would need to look like this:

<XmlUpdate
    Prefix="xmlsucks"
    Namespace="http://schemas.microsoft.com/packaging/2010/07/nuspec.xsd"
    XmlFileName="$(PackageDir)\temp\OddEnds.Testing\OddEnds.Testing.nuspec"
    XPath="/xmlsucks:package/xmlsucks:metadata/xmlsucks:version"
    Value="%(OddEndsTestingAsmInfo.Version)" />

Feel free to change the prefix to whatever derogatory term you would like to use :-)

Answer 3

I had exactly the same problem with NuGet, XmlUpdate, MSBuild and XPath.

In the end I switched to the NuGetPack task of the MSBuild Community Tasks project.
(Note that the NuGet tasks are (at least for right now) only available in the Nightly Build )

Adding the version number to your NuGet package via MSBuild using this task would then look somehow like the following snippet:

<Target Name="NuGet">
  <GetAssemblyIdentity AssemblyFiles="$(BuildCompileDirectory)\$(AssemblyName).dll">
     <Output TaskParameter="Assemblies" ItemName="AssemblyIdentities"/>
  </GetAssemblyIdentity>

  <NuGetPack
    ToolPath="$(ToolsDirectory)"
    WorkingDirectory="$(BuildCompileDirectory)"
    File="$(SrcDirectory)\$(SolutionName).nuspec"
    Version="%(AssemblyIdentities.Version)"/>
</Target>

Hope that helps!