I have found 3 regressions in ratpoison. They seem somewhat related.
General reproduction notes (for all 3 regressions):
- Use a docker container based on the debian:latest image.
- Run ratpoison against Xvfb.
- Important: Some reproductions might not succeed unless performed under
the conditions above.
- If necessary I can provide more details for reproduction, let me know
if you want this.
Regression 1: Segfault at startup.
- To reproduce:
- Xvfb :81 -screen 0 2000x2000x24
- export DISPLAY=:81
- ./src/ratpoison
- (press Ctrl-C to kill ratpoison)
- ./src/ratpoison
- Expected: Ratpoison starts again
- Actual: Ratpoison segfaults
- Workaround: ./configure --without-xrandr
- Introduced in commit: 59b8671 @ libXext isn't used
- Notes:
- This is the most serious problem. It is only present in certain
circumstances, which explains why it hasn't been found sooner. Feel
free to ask for more details. I could for example provide a
Dockerfile that reproduces the problem, if you only let me know that
you'd like to use it.
Regression 2: Faulty :focusup and :focusdown
- To reproduce:
- ./configure --without-xrandr
- Compile and run ratpoison
- With no windows, split screen vertically and horizontally into four
frames of equal size.
- Go to the top (or bottom) right frame
- :focusdown (or :focusup)
- Expected: The bottom (or top) right frame is focused
- Actual: The bottom (or top) left frame is focused
- Workaround: None found except running an earlier version.
- Introduced in: 5318f01 Update screen-aware focus* commands after
changes to support XRandR
- Notes:
- It seems that 5318f01 (which introduces this regression), is trying
to correct some calculation of frame coordinates with respect to
xrandr. Possibly, this is not working as intended when configured
with --without-xrandr.
Regression 3: Faulty :focusright
- To reproduce:
- ./configure --without-xrandr
- Compile and run ratpoison
- With no windows, split screen vertically and horizontally into four
frames of equal size.
- Go to the bottom left frame
- :focusright
- Expected: The bottom right frame is focused
- Actual: The top right frame is focused
- Workaround: None found except running an earlier version.
- Introduced in: 4b7b046 Fix: check frame overlap in find_frame_left,
find_frame_right
- Notes:
- :focusleft might be faulty too; I haven't been able to test it.
- It seems that 4b7b046 (which introduces this regression), is trying
to make :focusleft and :focusright work the same way as :focusup and
:focusdown. This is indeed the case, only that the introduced
behaviour is faulty when ratpoison is compiled and run as indicated
above.
Regards,
Axel Svensson
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