suppress-script-error.yml

name: $(Date:yyyyMMdd)$(Rev:.r)-$(Build.DefinitionVersion)-$(SourceBranchName)-$(Build.BuildId)
schedules:
- cron: '0 1 * * *'
  displayName: 'Nightly build (UTC)'
  always: 'true'
  branches:
    include:
    - main
trigger: none

jobs:
- job: bash
  displayName: Suppress script errors in bash
  pool:
    vmImage: 'ubuntu-latest'
  steps:
  - bash: |
      echo This step will fail
      >&2 echo "error"
    condition: always()
    continueOnError: true
    displayName: 'Fail on stderr'
    failOnStderr: true

  - bash: |
      echo This step will not fail
      >&2 echo "error"
    condition: always()
    displayName: 'Not failing on stderr'
    failOnStderr: false

  - bash: |
      echo This step will fail on non-zero exit code
      bash -c 'exit 1'
    condition: always()
    continueOnError: true
    displayName: 'Fail on non-zero exit code'

  - bash: |
      echo This step will not fail on non-zero exit code
      bash -c 'exit 1'
      if [ $? -eq 1 ]
      then
        echo Absorbing exit code 1
        exit 0
      else
        exit $?
      fi
    condition: always()
    displayName: 'Not failing on non-zero exit code'

- job: pwsh
  displayName: Suppress script errors in PowerShell
  pool:
    vmImage: 'ubuntu-latest'
  steps:
  - pwsh: |
      Write-Host "This step will fail"
      bash -c '>&2 echo "error"'
    condition: always()
    continueOnError: true
    displayName: 'Fail on stderr'
    failOnStderr: true

  - pwsh: |
      Write-Host "This step will not fail (failOnStderr)"
      bash -c '>&2 echo "error"'
    condition: always()
    displayName: 'Not failing on stderr'
    failOnStderr: false

  - pwsh: |
      Write-Host "This step will fail"
      Write-Error "This message is processed by error stream"
    condition: always()
    continueOnError: true
    displayName: 'Fail on Write-Error'
    errorActionPreference: stop

  - pwsh: |
      Write-Host "This step will not fail (errorActionPreference)"
      Write-Error "This message is processed by error stream"
    condition: always()
    displayName: 'Not failing on Write-Error'
    errorActionPreference: silentlyContinue

  - pwsh: |
      Write-Host "This step will fail on non-zero exit code"
      pwsh -nop -c 'exit 1'
    condition: always()
    displayName: 'Fail on non-zero exit code'
    continueOnError: true

  - pwsh: |
      Write-Host "This step will not fail on non-zero exit code"
      pwsh -nop -c 'exit 1'
      if ($LastExitCode -eq 1)
      {
        Write-Host "Absorbing exit code 1"
        exit 0
      }
      else
      {
        exit $LastExitCode
      }
    condition: always()
    displayName: 'Not failing on non-zero exit code'