-So, pm handling specifics:
-
-strategy is to avoid making needless pseudomerges
-pseudomerges that exist will be preserved
-(by being included in will-overwrite)
-
-This is good because the presence of a pseudomerge means we know we
-want to keep it; and that allows explicit control over history detail
-level.
-
-It does mean we must avoid making the pseudomerges unnecessarily.
-They should be made just before (ideally, part of) dgit push.
-
-1. git-debrebase [-i etc.]
-
- should:
- check for will-overwrite
- if is already a will-overwrite, fine, do no more
- if not:
-
- check our origin branch exists and we are ff from it
- if not fail
-
- check our other might-be-pushed to branches
- check we are ff from them
- if not fail
-
- set will-overwrite to something which is ff from
- all above branches
-
- we use our tip, as discussed above
- (optionally, can use some other commit which is ff
- from all of the above, eg one of them)
-
-N. git-debrebase [--noop-ok] record-ffq-prev
-
- does what is described above
-
-2. git-debrebase [--noop-ok] stitch
-
- makes pseudomerge with will-overwrite
- deletes will-overwrite
-
- we will teach dgit to do
- git-debrebase stitch
-
-3. git-debrebase push
-
- like git push only does stitch first
- ??? command line parsing!
-
-4. git-debrebase release
-
- stiches, finalises changelog, signs tags, pushes everything
- for the future, when there is some automatic builder
-
-will-overwrite for each ref
- refs/heads/FOO
-is
- refs/ffq-prev/FOO
-
-========================================
-
-import from gbp
-
-[ 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
- breakwater pseudomerge with upstream
- "rebase" of pq branch, each commit with d/patches stripped
-]
-
-what about dgit view branch ?
-ideally, would make pseudomerge over dgit view
-would need to check that dgit view is actually dgit view of
- ond of our ancestors
-failing that first push will need --overwrite
-
-========================================
-
-divergence, merges: