Shared Dependencies: the LOGIC

[schristoff]

Goal: If I have a parent bundle and a dependency, and that dependency already exists, don't install the dependency again, just wire them up together.

Things to note:

• If child dependency exists, and sharing + group match, then on install we will get the arguments from the child dependency and give it to the parent when CNAB.execute is called. Child dependency won't be changed otherwise.
• For pre-existing child dependencies, the following occurs:
  • Update: Updates to the parent are applied, the pre-existing child is not passed any update information
  • Invoke: This is for users to implement they want, but I'm leaving it as a foot gun. If you do an invoke and change the pre-existing child, then all other non-direct parents will need to be invoked as well. As in, we have no reconcile or logic to share these changes, do at your own risk.
  • Delete: For a pre-existing child, the parent is delete, the child is left. Users must delete the child manually.

[arschles]

This LGTM. I only have documentation nits.

[devigned]

Mostly documentation feedback. I caught a couple spelling issues. I could have missed others, so might want to run through spellchecker.

Nice work!!

[devigned]

lgtm! 🚀 🦄