TFS Build vNext:如何从 Powershell 写入自定义构建变量

问题描述

我有一个需要设置自定义构建变量的 Powershell 脚本，以便它可以在以后的任务中使用.我已经成功添加了一个变量，并验证它可以从 Powershell 访问和设置，但是，无论出于何种原因，在稍后的构建步骤中引用该变量时，更改不会持续.

I have a Powershell script that needs to set a custom build variable, such that it can be used in a later task. I have successfully added a variable, and verified it can be accessed and set from Powershell, but, for whatever reason, the change does not persist when referencing the variable in a later build step.

Write-Host $env:VERSIONNUMBER #prints the variable value set in TFS Build
$env:VERSIONNUMBER = 'This doesn't stick'
Write-Host $env:VERSIONNUMBER #prints 'This doesn't stick', but not available after this task

推荐答案

在您的 PowerShell 脚本中尝试以下操作

Try the following in your PowerShell script

Write-Host "##vso[task.setvariable variable=myvariable]newValue"

这在 Release Management vNext 中对我有用，但我认为它也适用于构建系统.

this worked for me in Release Management vNext, but I would assume it also works in the build system as well.

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