PowerShell - 从 .csproj 文件获取版本 [英] PowerShell - Get Version from .csproj file

问题描述

我正在学习 PowerShell.现在，我正在尝试从 .csproj 文件中获取 Version 元素值..csproj 文件的 XML 如下所示:

I'm learning PowerShell. Right now, I'm trying to get the Version element value from a .csproj file. The .csproj file's XML looks like this:

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <TargetFramework>netcoreapp2.1</TargetFramework>
    <Version>1.2.3</Version>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="MyLibrary" Version="3.2.1" />
  </ItemGroup>

</Project>

为了从这个 XML 中获取 Version 元素值，我编写了以下 PowerShell 脚本:

In an attempt to get the Version element value from this XML, I've written the following PowerShell script:

$xml = [xml](Get-Content ./MyApp.csproj)

Write-Host "xml: " $xml

$version = $xml.Project.PropertyGroup.Version

Write-Host "version: $version"

当我运行这个脚本时，我看到以下内容:

When I run this script, I see the following:

xml:

version:

请注意，项目 XML 和版本均未写入.起初，我以为我错误地引用了 .csproj.我故意删除了最后的j"，并抛出了一个错误.出于这个原因，我假设我正在正确加载 .csproj 内容.但是，我相信我没有在我的 PowerShell 脚本中正确解析 XML.

Notice that neither the project XML, nor the version gets written. At first, I thought I was referencing the .csproj incorrectly. I intentionally removed the "j" at the end and an error was thrown. For that reason, I'm assuming that I'm properly loading the .csproj content. However, I believe I'm not parsing the XML properly in my PowerShell script.

如何从 PowerShell 脚本中的 .csproj 值中获取 Version?

How do I get the Version from the .csproj value in the PowerShell script?

推荐答案

如前所述，Write-Host 仅用于输出，无法重定向.除此之外，我无法重现它.这对我有用:

As noted, Write-Host is output-only and cannot be redirected. Other than that, I can't reproduce it. This works for me:

$xml = [Xml] (Get-Content .\MyApp.csproj)
$version = [Version] $xml.Project.PropertyGroup.Version

(转换为 [Version] 可以更轻松地获取版本的各个部分，与其他版本进行比较等)

(The cast to [Version] makes it easier to get the individual parts of the version, compare with other versions, etc.)

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