问题
In Azure DevOps, I created a Build. In that Build I created a ProjectBuildNumber Pipeline variable that is Settable at queue time. That variable is then used under Options -> Build number format to set my build number displayed in Azure.
However, I am trying to make that ProjectBuildNumber variable settable in the code I am building/deploying. Is there a way I can have a Task in my Build to update that ProjectBuildNumber and update the Build number in Azure DevOps?
回答1:
Is there a way I can have a Task in my Build to update that ProjectBuildNumber and update the Build number in Azure DevOps?
The answer is yes.
You could add a Inline Power-Shell task in your build definition to update the value of ProjectBuildNumber and then update the build number base on the it:
Write-Host "##vso[task.setvariable variable=ProjectBuildNumber;]YourUpdateValue"
Write-Host "##vso[build.updatebuildnumber]xxx.$(ProjectBuildNumber).xxx.xxx"
Check the Logging Command during the build for some more details:
Besides, if you want to update the value of a Pipeline Variable on the UI/web portal, you need the REST API (Definitions - Update) to update the value of the build pipeline definition variable from a build task.
There is a very similar thread, you can check the answer for the details:
How to modify Azure DevOps release definition variable from a release task?
Note:Change the API to the build definitions:
PUT https://dev.azure.com/{organization}/{project}/_apis/build/definitions/{definitionId}?api-version=5.0
Hope this helps.
回答2:
Check out the Microsoft documentation on this: Variables
Depending on your operating system you can add a Powershell/Batch/Bash Task and change the variable.
Edit: After some research it appears that the change of the variable will show up in the following task. Take a look at this issue Update environment variables using task.setvariable in a bash script does not work
来源：https://stackoverflow.com/questions/58286114/azure-devops-set-build-number-variable-in-a-build-task