Second choice conditional on first choice

  - trigger: :test
    replace: "{{output}}"
    vars:
      - name: select
        type: choice
        params:
          values: ["1","2"]
      - name: items
        type: shell
        params:
          cmd: |
            # Generate lists for second choice:
            items=("a" "b" "c") # Items for choice "1"
            printf "%s\n" "${items[@]}" > $CONFIG/match/file1 # or Windows equivalents
            items=("d" "e" "f") # Items for choice "2"
            printf "%s\n" "${items[@]}" > $CONFIG/match/file2 # or Windows equivalents
            # Generate {{items}} dependent on first choice
            cat $CONFIG/match/file{{select}} # or "type" for Windows
            # Remove temporary files
            rm -f $CONFIG/match/file1 $CONFIG/match/file2
      - name: output
        type: choice
        params:
          values: "{{items}}"