Azure Pipelines: multiline parameter

Question

Is it possible in the azure pipeline to pass a multi-line parameter? If type is a string, you can't even write with a newline. If on the other hand the type is object, you can enter multi-line, but all EOLs in the variable will be removed.

parameters:
- name: Multiline
  type: object

If I save the parameter to a text file, the result is one-line

- bash: |
    echo ${{ parameters.Multiline }} >> script.txt
    cat script.txt

Answer 1

I think multiline parameters are not supported natively but you can use object to pass a multiline string. The way it can be done is by adding a yaml object that will contain the multiline string:

eg.

foo: |
  Multiline
  text
  in 
  parameter

Then you can access foo by writing ${{ parameters.Multiline.foo }}.

This is the pipeline code:

parameters:
- name: Multiline
  type: object
  
pool:
  vmImage: 'ubuntu-latest'

steps:
  - bash: |
      cat >> script.txt << EOL
      ${{ parameters.Multiline.foo }}
      EOL
        
      cat script.txt