blackbox: set lastui even if ui.log is not called (issue5518)
`lastui` decides where (where is the `.hg`) to use if the current `ui`
object does not have a `_bbrepo` associated. Previously it only gets set in
`ui.log`, which means unless a `ui` with repo associated calls `log` with
tracked event, blackbox does not know where to write its log. This patch
makes `reposetup` set `lastui` so it so we could log some more events (see
test changes).
Differential Revision: https://phab.mercurial-scm.org/D655
$ hg init
$ echo This is file a1 > a
$ echo This is file b1 > b
$ hg add a b
$ hg commit -m "commit #0"
$ echo This is file b22 > b
$ hg commit -m "comment #1"
$ hg update 0
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ rm b
$ hg commit -A -m "comment #2"
removing b
created new head
$ hg update 1
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ rm b
$ hg update -c 2
abort: uncommitted changes
[255]
$ hg revert b
$ hg update -c 2
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ mv a c
Should abort:
$ hg update 1
abort: uncommitted changes
(commit or update --clean to discard changes)
[255]
$ mv c a
Should succeed:
$ hg update 1
1 files updated, 0 files merged, 0 files removed, 0 files unresolved