use yq.strenv() to handle multiline env values

[wanddynosios]

Problem description

When upgrading from yq 3.x to 4.x, the behaviour regarding multiline changed.

Steps to reproduce

Setup

user@pc:/# cat test.sh
#!/bin/bash
yq --version
echo """---
applications:
  - env:
""" > manifest.yml

export manifest="manifest.yml"
export key="MYKEY"
export value='{
    "glossary": {
        "title": "example glossary",
    }
}'
echo "WRONG:"
yq '.env[env(key)] = env(value)' "$manifest"

echo "CORRECT:"
yq '.env[env(key)] = strenv(value)' "$manifest"

Result

yq (https://github.com/mikefarah/yq/) version v4.30.6
WRONG:
---
applications:
  - env:
env:
  MYKEY: {"glossary": {"title": "example glossary"}}
CORRECT:
---
applications:
  - env:
env:
  MYKEY: |-
    {
        "glossary": {
            "title": "example glossary",
        }
    }

Especially when working with YAML and other newline-sensitive formats this is essential.

Fix

Use yq.strenv() instead of yq.env()