Can conditional variable assignment be done in Azure pipelines

Question

Azure Pipelines has Expressions and Conditions, how can I assign one of two values to a variable, based on a condition.
Is there a way to accomplish this?

${{ if endsWith( variables['Build.SourceBranchName'], '/master' ) }}:
      buildVersion: variables['mavenVersion']
    ${{ else }}:
      buildVersion: variables['Build.SourceBranchName']

Answer 1

If you are using variable groups then you need to define additional variables as name-value pairs. To use conditional variable assignment that would be as follows:

variables:
- group: 'my-variable-group'
- name: myfirstadditionalvariable
  value: 100
- name: myconditionalvariable
  ${{ if eq( variables['Build.SourceBranchName'], 'master' ) }}:
    value: masterBranchValue
  ${{ if ne( variables['Build.SourceBranchName'], 'master' ) }}:
    value: featureBranchValue

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