qlog does not show revisions with only deleted files/dirs

[Aliaksei Vasileuski]

How to reproduce (for Windows, it seems to be trivial to modify for GNU/Linux):
 bzr init qbzrtest
 cd qbzrtest
 mkdir dir1
 mkdir dir1\dir2
 bzr add
 bzr ci -m "dirs added."
 bzr remove --force dir1/dir2
 bzr ci -m "deleted a dir."
 bzr --no-aliases log --line dir1
  2: author 2010-02-09 deleted a dir.
  1: author 2010-02-09 dirs added.
 bzr --no-aliases qlog dir1
  1: author 2010-02-09 dirs added.
So #2 is not shown by "bzr qlog"!

[Alexander Belchenko (bialix)]

The root of this problem is inside bzr itself: bzr does not provides info about deletions. You will get the same result with usual `bzr log dir1`.

We can try to emulate this info in qlog itself but it will be very slow.

[Aliaksei Vasileuski (sagara1337)]

But it is incorrect, "bzr log dir1" gives me:
  2: author 2010-02-09 deleted a dir.
  1: author 2010-02-09 dirs added.

(see bzr --no-aliases log --line dir1 above).

[Alexander Belchenko (bialix)]

Gary, can you comment on this?

[Gary van der Merwe (garyvdm)]

bzr log FILE does not show revisions were the file was deleted. (bug 181520)
bzr log DIR does show revisions were the file was deleted.
bzr log FILE -v does show revisions were the file was deleted.

I can fix this, but there will be a performance hit.

[Alexander Belchenko (bialix)]

https://bugs.launchpad.net/bzr/+bug/181520

[Aliaksei Vasileuski (sagara1337)]

I've read the bug 181520, there are some ideas how to fix there in "new formats" (without performance loss, I hope).

So!

1. At least the 'qlog' window should have 'why some revisions are not shown?' link which opens help topics and describes the issue (and lists workaround(s), e.g. I had to use "bzr log > some.txt" and search in the text editor to actually found what I need).
2. New help topic for the issue and "bzr help log", "bzr help qlog" commands should suggest to read it.
3. Ideal solutions will be a format change to show deleted files/dirs without a performance hit. It is not easy solution, I guess, but how can I rely on VCS if it hides some info from me?
4. At least can qlog show revisions where the file/dir was deleted just like "bzr log DIR"? Or "bzr log" has mentioned "performance hit"?