Category Archives: Developers

Kate progress, Git and happy new year ;)

As Dominik already points out in his blog, Kate has made nice progress for KDE 4.6.

Some of the latest fixes, like for some nasty search bug didn’t make it in RC1, btw., I was too lame with Git -> SVN syncs.
Anyway, I have now synced and backported to KDE 4.6 branch all pending fixes.

For the next KDE SC release 4.7 (here you go, I wrote SC :)), I hope this syncing will no longer be necessary.
At least Kate app + part + KWrite should then be only in the kate.git.
I can live with ktexteditor remaining in kdelibs, if removing that and still keeping BC and SC would be too much work. But part and app are at most runtime dependencies anyway.

Last but not least, I wish you all a good start into a happy new year ;)

Introducing Kate GDB Plugin

Have you, like me, had to switch to an external debugger or run raw gdb in the terminal plugin to debug the C/C++ application you develop with Kate? That might not be necessary any more. There is now a “GDB Plugin” in trunk that gives you the power of raw GDB with some QAction candy for the most common actions.

I have always been a bit frustrated with not having a debugger directly in Kate, but too lazy/busy to start a debugger plugin project. Fortunately Ian Wakeling started this GDB plugin and got it off the ground. When I got introduced to it at Akademy, it triggered an itch in me to get this plugin into kdesdk and to add some features for the more point and click type of persons. As it seemed I had a bit more free time to spend on the plugin, Ian let me take over as maintainer.

Main features of the plugin:
- Jump to the corresponding file and line whenever gdb stops.
- Insert and remove breakpoints.
- Tool-bar buttons for the most often used actions like step into/over/out. Those actions can of course also be assigned to keyboard shortcuts.
- Execution markers and breakpoint markers on the icon border.
- A call stack tab for point and click navigation of the call stack.
- Optional IO redirection to a separate tab.
- Printing the value of the currently selected variable or expression. QStrings and friends are not supported (yet?).
- And last but not least. A GDB console for the full power of GDB.

And now the screen-shots

GDB Console, execution marker and a breakpoint marker.


The current call stack.


Settings tab.


Redirected IO.


The selected variable and the GDB value output.


The debug menu.

Kate – GSoC Summary

Hello planet,

As Google Summer of Code is now finished and I have successfully passed the final evaluation, I would like to give a brief description of my project.

Kate is now able to recover (most of) what was written after last save in case of a crash or power failure. A swap file is created after the first editing action on a document that was successfully saved. If the user closes the document normally or saves its content, the swap file is deleted, otherwise, if Kate crashes, it remains on the disk. On load, Kate searches for the swap file, and if it exists, a warning bar pops from the top and provides the user with three possibilities: recover the lost data, discard the swap file or view differences between the original data and the recovered one. If the user chooses to restore the lost data, the editing actions from the swap file are replayed over the current content of the document. If somehow the swap file is not valid, for example a finishEditing statement is missing, the recovery is done, but the user is warned that it might be incomplete.

Only the core feature for swap file is implemented at the moment. I know I could have done more, but things went slow at the beginning, as I was new to Qt and KDE development and also had a demanding exam period. But this has a positive aspect, too, as will motivate me to continue my work at this project.

This has been a great summer for me as I was accepted into GSoC program and got a chance to do what I like and get paid for it. I want to thank Christoph, my mentor, for having patience with me and helping me with all the problems I have encountered. I also want to thank the whole Kate team, KDE community and Google :).

Kate Night-Make

Each night now Kate (part/app) is build from git and all unit tests are run. Yeah, we even got some tests .P
Until now, that just reminds on of our failures ;) But I hope the daily mail will perhaps motivate me and others more to fix them ;)

Beside, thanks for all the people working to write these tests, like Bernhard, Dominik and Milian.

Kate Nightmake Tests
From: cullmann@kate-editor.org
To: kwrite-devel@kde.org
Date: Today 05:06:46

[HANDLER_OUTPUT]
Test project /home/www/kate-editor.org/build/build

Start  1: katetextbuffertest
1/34 Test  #1: katetextbuffertest ...............   Passed    0.02 sec
Start  2: range_test
2/34 Test  #2: range_test .......................   Passed    1.09 sec
Start  3: testkateregression
3/34 Test  #3: testkateregression ...............***Failed    0.03 sec
Start  4: undomanager_test
4/34 Test  #4: undomanager_test .................   Passed    1.34 sec
Start  5: plaintextsearch_test
5/34 Test  #5: plaintextsearch_test .............   Passed    7.56 sec
Start  6: regexpsearch_test
6/34 Test  #6: regexpsearch_test ................   Passed    8.45 sec
Start  7: scriptdocument_test
7/34 Test  #7: scriptdocument_test ..............   Passed    1.36 sec
Start  8: completion_test
8/34 Test  #8: completion_test ..................***Failed    0.95 sec
Start  9: searchbar_test
9/34 Test  #9: searchbar_test ...................***Failed   11.24 sec
Start 10: movingcursor_test
10/34 Test #10: movingcursor_test ................   Passed    0.94 sec
Start 11: movingrange_test
11/34 Test #11: movingrange_test .................   Passed    1.79 sec
Start 12: katedocument_test
12/34 Test #12: katedocument_test ................   Passed    1.09 sec
Start 13: revision_test
13/34 Test #13: revision_test ....................   Passed    0.63 sec
Start 14: templatehandler_test
14/34 Test #14: templatehandler_test .............   Passed    0.44 sec
Start 15: indenttest
15/34 Test #15: indenttest .......................***Failed   25.87 sec
Start 16: bug213964_test
16/34 Test #16: bug213964_test ...................   Passed    0.73 sec
Start 17: utf8.txt_create
17/34 Test #17: utf8.txt_create ..................   Passed    0.17 sec
Start 18: utf8.txt_diff
18/34 Test #18: utf8.txt_diff ....................   Passed    0.01 sec
Start 19: latin15.txt_create
19/34 Test #19: latin15.txt_create ...............***Exception: SegFault  0.04 sec
Start 20: latin15.txt_diff
20/34 Test #20: latin15.txt_diff .................***Failed    0.01 sec
Start 21: utf32.txt_create
21/34 Test #21: utf32.txt_create .................   Passed    0.13 sec
Start 22: utf32.txt_diff
22/34 Test #22: utf32.txt_diff ...................   Passed    0.01 sec
Start 23: utf16.txt_create
23/34 Test #23: utf16.txt_create .................   Passed    0.10 sec
Start 24: utf16.txt_diff
24/34 Test #24: utf16.txt_diff ...................   Passed    0.01 sec
Start 25: utf32be.txt_create
25/34 Test #25: utf32be.txt_create ...............   Passed    0.10 sec
Start 26: utf32be.txt_diff
26/34 Test #26: utf32be.txt_diff .................   Passed    0.01 sec
Start 27: utf16be.txt_create
27/34 Test #27: utf16be.txt_create ...............   Passed    0.10 sec
Start 28: utf16be.txt_diff
28/34 Test #28: utf16be.txt_diff .................   Passed    0.01 sec
Start 29: cyrillic_utf8.txt_create
29/34 Test #29: cyrillic_utf8.txt_create .........   Passed    0.10 sec
Start 30: cyrillic_utf8.txt_diff
30/34 Test #30: cyrillic_utf8.txt_diff ...........   Passed    0.01 sec
Start 31: cp1251.txt_create
31/34 Test #31: cp1251.txt_create ................   Passed    0.10 sec
Start 32: cp1251.txt_diff
32/34 Test #32: cp1251.txt_diff ..................   Passed    0.01 sec
Start 33: koi8-r.txt_create
33/34 Test #33: koi8-r.txt_create ................   Passed    0.11 sec
Start 34: koi8-r.txt_diff
34/34 Test #34: koi8-r.txt_diff ..................   Passed    0.01 sec

82% tests passed, 6 tests failed out of 34

Total Test time (real) =  64.64 sec

The following tests FAILED:
3 - testkateregression (Failed)
8 - completion_test (Failed)
9 - searchbar_test (Failed)
15 - indenttest (Failed)
19 - latin15.txt_create (SEGFAULT)
20 - latin15.txt_diff (Failed)
[ERROR_MESSAGE]
Errors while running CTest