https://bugs.kde.org/show_bug.cgi?id=464140
Bug ID: 464140
Summary: kbuildsycoca5 does not generate any files
Classification: Frameworks and Libraries
Product: frameworks-kservice
Version: 5.101.0
Platform: Gentoo Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: fa...@kde.org
Reporter: egge...@protonmail.com
CC: kdelibs-b...@kde.org
Target Milestone: ---
SUMMARY
After updating dev-qt packages to 5.15.8 and restarting, no more installed
applications were shown.
Digging around I found out that kservice and especially kbuildsycoca5 is
responsible to generate the required files, which no longer seems to work but
without giving me any pointer why.
I'm not sure how I landed there in first place or how I can recover from this
state as downgrading kde-frameworks, dev-qt and kde-plasma didn't change
anything.
As a last resort I cleared all qt, kde and plasma related config files from
~/.config and ~/.local/share but that didn't help either.
There is also an more in-depth stackexchange thread about this exact issue from
a different person
https://unix.stackexchange.com/questions/731054/kde-plasma-problems-all-launchers-broken-app-launcher-empty-desktop-error-mes
STEPS TO REPRODUCE
1. Run kbuildsycoca5 --noincremental
OBSERVED RESULT
$ QT_LOGGING_RULES='*=true' kbuildsycoca5 --noincremental
kbuildsycoca5 running...
kf.service.sycoca: Recreating ksycoca file
("/home/michi/.cache/ksycoca5_en_4VlnO2XZB5a9Is_5ao1CxN9XAH4=", version 304)
kf.service.sycoca: Looking for subdir "kservices5" => ("/usr/share/kservices5")
kf.service.sycoca: Looking for subdir "kservicetypes5" =>
("/usr/share/kservicetypes5", ":/kservicetypes5")
kf.service.sycoca: Looking for subdir "mime" => ("/usr/share/mime")
kf.service.sycoca: Found menu file "/etc/xdg/menus/kf5-applications.menu"
kf.service.sycoca: Found menu file
"/etc/xdg/menus/applications-merged/wine.menu"
kf.service.sycoca: Menu "applications-kmenuedit.menu" not found.
kf.service.sycoca: Looking up applications under
"/usr/share/wine-proton-7.0.9999/applications/"
kf.service.sycoca: Looking up applications under "/usr/share/applications/"
kf.service.sycoca: Looking up applications under
"/usr/local/share/applications/"
kf.service.sycoca: Looking up applications under
"/var/lib/flatpak/exports/share/applications/"
kf.service.sycoca: Looking up applications under
"/home/michi/.local/share/flatpak/exports/share/applications/"
kf.service.sycoca: Looking up applications under
"/home/michi/.local/share/applications/"
kf.service.sycoca: Saving
kbuildsycoca5 runs without an error, but didn't generate a menu file in
~/.config/menus and thus no application is visible on the plasma session. I
checked all the available logs and permissions but so far I couldn't find why
$ ls -lah ~/.config/menus
total 0
drwxr-xr-x 1 michi michi 0 Jan 11 11:26 .
drwxr-xr-x 1 michi michi 2.1K Jan 11 11:32 ..
ls -lah /etc/xdg/menus
total 20K
drwxr-xr-x 1 root root 146 Jan 11 09:41 .
drwxr-xr-x 1 root root 488 Jan 11 11:02 ..
lrwxrwxrwx 1 root root 21 Jan 11 09:39 applications.menu ->
kf5-applications.menu
drwxr-xr-x 1 root root 18 Jan 11 08:38 applications-merged
-rw-r--r-- 1 root root 9.8K Dec 3 10:51 kf5-applications.menu
-rw-r--r-- 1 root root 279 Jan 3 19:04 kinfocenter.menu
EXPECTED RESULT
kbuildsycoca5 runs without an error and generates the menus (and desktop?)
files that are shown as installed applications.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Gentoo Linux (kernel 6.1.1-zen1)
Graphics Platform: Wayland (this happens on X11 as well)
KDE Plasma Version: 5.26.5
KDE Frameworks Version: 5.101.0
Qt Version: 5.15.8
ADDITIONAL INFORMATION
All packages were being compiled with clang:
$ clang --version
clang version 15.0.6
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir: /usr/lib/llvm/15/bin
Configuration file: /etc/clang/clang.cfg
I'm glad for any pointers how to resolve this or patches I could try out,
thanks!
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