### What needs to get done Basically this as a utility function: https://github.com/snapcore/snapcraft/pull/4493/files#diff-81bf1b8cfa88289a0432d3e12f4b4c1c104d4463a49dbc0e6c431d4e444a35cdR541-R544 ### Why it needs to get done We've got this code in multiple places and more will probably come. If this changes we'd have to change it in downstream apps. cc @mr-cal