Is it possible to set an VSTS Build variable in a Build Step so that the value can be used in a subsequent Build Step?

Question

I\'m currently using Build in Visual Studio Team Services (was Visual Studio Online), and would like to be able to set a Build Variable in a Build Step so that the new value

Answer 1

I found this link helpful: https://docs.microsoft.com/en-us/azure/devops/pipelines/scripts/logging-commands?view=azure-devops&tabs=powershell

This has the complete options of what you can do: https://docs.microsoft.com/en-us/azure/devops/pipelines/process/variables?view=azure-devops&tabs=yaml%2Cbatch

You can reuse set variable from task to task, and also job to job. I couldn't find anything on stage to stage.

In summary:

jobs:

# Set an output variable from job A
- job: A
  pool:
    vmImage: 'vs2017-win2016'
  steps:
  - powershell: echo "##vso[task.setvariable variable=myOutputVar;isOutput=true]this is the value"
    name: setvarStep
  - script: echo $(setvarStep.myOutputVar)
    name: echovar

# Map the variable into job B
- job: B
  dependsOn: A
  pool:
    vmImage: 'ubuntu-16.04'
  variables:
    myVarFromJobA: $[ dependencies.A.outputs['setvarStep.myOutputVar'] ]  # map in the variable
                                                                          # remember, expressions require single quotes
  steps:
  - script: echo $(myVarFromJobA)
    name: echovar