Question 38564 in Ubuntu Question posted in
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Azure DevOps YAML Split & Each – Ubuntu

We have variable group in Pipeline and it has below input

Input: Instance1,Instance2,Inastance3

Expected Output: Instance1 Instance2 Inastance3

We tried below YAML Code

trigger:
- main

pool:
  vmImage: ubuntu-latest
variables:
- group: "DevInstanceList"
- name: InstancesList
  value: $[variables.Instances]

steps:
- script: echo $(InstancesList) 
- ${{ each env in split(variables.InstancesList, ',')}}:
    - script: echo ${{ env }}

We tried to split using comma seperator and getting below error.

Error: syntax error: invalid arithmetic operator (error token is
".Instances")

Instance Defined in Library–> Group variable
enter image description here
Please share your thoughts

Tags:

2

Answers


  1. 0

    You could try a powershell task like:

    - powershell: |
   
   $results = "$(InstancesList)".Split(" ")
   $result[0]
   $result[1]
   $result[2]
  displayName: 'PowerShell Script to split variables'

    Note: A space between double quotes in split function.
    Updated Answer: I Tested the code it works:

    trigger: none

pool:
  vmimage: ubuntu-latest

variables:
 - group: TestVariablegroup

steps:
- task: PowerShell@2
  inputs:
    targetType: 'inline'
    script: |
      # Write your PowerShell commands here.
      echo $(InstancesName)
      $results = "$(InstancesName)".split(",")
      foreach ($instance in $results){
        Write-Host "The selected Instance Name is - $($Instance)"
      }

    Adding variablegroup Image FYR:
    VariableGroup

    Adding Results Image FYR:
    Output Image

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  2. 0

    Based on my test, the $[] cannot be fetched in compile time use for each. As @Daniel mentioned. If you are using ‘$(Instances)’ in "each", you will find the empty.

    For more information, you can refer to Runtime expression syntax.

    So you can try to provide the value in the YAML file.

    YAML like:

    variables:
- group: "DevInstanceList"
- name: InstancesList
  value: Instance1,Instance2

steps:
- ${{ each env in split(variables.InstancesList, ',')}}:
    - script: echo ${{ env }}
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