-[ all this is done now:
- inputs:
- current HEAD (patches-unapplied),
- this is going to be the base of the old breakwater
- nominated upstream
-
- checks:
- HEAD:<upstream> = upstream:<upstream>
- upstream..HEAD:<upstream> is empty (overrideable)
- upstremm:debian is empty (overrideable)
-
- procedure:
- construct
- run gbp pq import to generate pq branch
- new breakwater is
- old HEAD
- commit to remove d/patches
- anchor merge with upstream
- "rebase" of pq branch, each commit with d/patches stripped
-]
-