Azure DevOps Pipelines, how can the job know it was triggered from a Schedule?

Question

I have an Azure DevOps system up and running, with triggers to run the pipeline due to PRs as well as a nightly schedule, like so:

trigger:
 batch: true
 branches:
  include:
   - main
   - release/*
   - pre-release/*

schedules:
  - cron: "0 0 * * *"
    displayName: Daily midnight build
    branches:
      include:
        #- main
        #- release/*
        - pre-release/*
    always: false

Is there a way to let the job know that's being called from a Schedule rather than a PR? I'd like to add another series of more rigorous tests, but just with nightlies, as part of the usual job.

Perhaps setting a variable that can be checked later in the pipeline.

Answer 1

You could use the Build.Reason predefined variable.

In your case checking if $(Build.Reason) equals Schedule should work.

Build.Reason. The event that caused the build to run.

• Manual: A user manually queued the build.
• IndividualCI: Continuous integration (CI) triggered by a Git push or a TFVC check-in.
• BatchedCI: Continuous integration (CI) triggered by a Git push or a TFVC check-in, and the Batch changes was selected.
• Schedule: Scheduled trigger.
• ValidateShelvese: A user manually queued the build of a specific TFVC shelveset.
• CheckInShelveset: Gated check-in trigger.
• PullRequest: The build was triggered by a Git branch policy that requires a build.
• ResourceTrigger: The build was triggered by a resource trigger or it was triggered by another build.