undo-files: cleanup backup when cleaning undos
Previously, the backups were left behind, by operation cleaning the undo's like
strip, narrow and stream clone.
The remaining elevant in the room is the transaction itself, who does not
properly cleanup undo backup before copying the new ones.
$ cat << EOF >> $HGRCPATH
> [extensions]
> rebase=
> [alias]
> tglog = log -G -T "{rev} '{desc}'\n"
> EOF
$ hg init
$ echo a > a; hg add a; hg ci -m a
$ echo b > b; hg add b; hg ci -m b1
$ hg up 0 -q
$ echo b > b; hg add b; hg ci -m b2 -q
$ hg tglog
@ 2 'b2'
|
| o 1 'b1'
|/
o 0 'a'
With rewrite.empty-successor=skip, b2 is skipped because it would become empty.
$ hg rebase -s 2 -d 1 --config rewrite.empty-successor=skip --dry-run
starting dry-run rebase; repository will not be changed
rebasing 2:6e2aad5e0f3c tip "b2"
note: not rebasing 2:6e2aad5e0f3c tip "b2", its destination already has all its changes
dry-run rebase completed successfully; run without -n/--dry-run to perform this rebase
With rewrite.empty-successor=keep, b2 will be recreated although it became empty.
$ hg rebase -s 2 -d 1 --config rewrite.empty-successor=keep
rebasing 2:6e2aad5e0f3c tip "b2"
note: created empty successor for 2:6e2aad5e0f3c tip "b2", its destination already has all its changes
saved backup bundle to $TESTTMP/.hg/strip-backup/6e2aad5e0f3c-7d7c8801-rebase.hg
$ hg tglog
@ 2 'b2'
|
o 1 'b1'
|
o 0 'a'