Diffing the resolvers to know which were updated from one scaffold to another

[Weakky]

Description

When scaffolding resolvers, there's no indication at all regarding which file/resolvers were updated. Users have to dig themselves into the files to find out.

Proposal

Step 1: When scaffolding resolvers, copy/paste the old resolvers into a temporary folder

Step 2: Make a diff between the old and the new resolvers, probably using git diff.

Step 3: Parse that diff to provide a clean and helpful message.

Flaws

• Messages may become really long
• Diff can become out of sync (by deleting the tmp folder for instance)