progress: react more reasonably to nested progress topics
Previously, we'd reset the entire progress bar state when a topic was
completed, even if it wasn't the outermost progress topic. Now we
print the state of the next progress topic on the stack if one is left
rather than reset the progress bar.
$ echo "[extensions]" >> $HGRCPATH
$ echo "bookmarks=" >> $HGRCPATH
$ echo "mq=" >> $HGRCPATH
$ hg init
$ echo qqq>qqq.txt
add file
$ hg add
adding qqq.txt
commit first revision
$ hg ci -m 1
set bookmark
$ hg book test
$ echo www>>qqq.txt
commit second revision
$ hg ci -m 2
set bookmark
$ hg book test2
update to -2
$ hg update -r -2
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo eee>>qqq.txt
commit new head
$ hg ci -m 3
created new head
bookmarks updated?
$ hg book
test 1:25e1ee7a0081
test2 1:25e1ee7a0081
strip to revision 1
$ hg strip 1
saved backup bundle to $TESTTMP/.hg/strip-backup/*-backup.hg (glob)
list bookmarks
$ hg book
* test 1:8cf31af87a2b
* test2 1:8cf31af87a2b
immediate rollback and reentrancy issue
$ echo "mq=!" >> $HGRCPATH
$ hg init repo
$ cd repo
$ echo a > a
$ hg ci -Am adda
adding a
$ echo b > b
$ hg ci -Am addb
adding b
$ hg bookmarks markb
$ hg rollback
rolling back to revision 0 (undo commit)
are you there?
$ hg bookmarks
no bookmarks set
can you be added again?
$ hg bookmarks markb
$ hg bookmarks
* markb 0:07f494440405
$ cd ..