Finding kdesu binary

[Aleix Pol]

On Fri, Jan 29, 2016 at 5:03 PM, Andrius Štikonas <andrius at stikonas.eu> wrote:
>> On Fri, Jan 29, 2016 at 3:33 PM, Andrius Štikonas <andrius at stikonas.eu> wrote:
>> > Hi,
>> >
>> > I would like to ask how do I find kdesu binary from the code (of partitionmanager).
>> >
>> > PartitionManager tries to restart itself with root privileges and tries to rerun itself with kdesu, kdesudo or gksu...
>> > However, KF5 based kdesu is now in libexec, something like
>> > /usr/lib64/libexec/kf5/kdesu
>> > but it varies from distribution to distribution and not in $PATH.
>> >
>> > Is there a way to find the location in the cross-platform way? There is kf5-config --path libexec but it is from kdelibs4support
>> > and it's better not to depend on kdelibs4support.
>>
>> If I understand correctly, you should use the KSu framework for that.
>> kdesu is not public API, that's why it's in libexec.
>>
>> Aleix
>
> Hmm, but KSu framework does not have any GUI. And it is only used by
> kdesu binary itself and krunner_shell library.
>
> I would basically have to reimplement kdesu password dialog. Isn't this a bit inefficient?
> Especially, when kdesu dialog is already shown automatically if partitionmanager
> is launched from menu.

Ah yes, you are right, kdesu is in kde-cli-tools. My apologies.

You can access the libexec install dir like done in discover and
desktopexecparser [1].

Basically you need to pass the libexec directory from cmake:
target_compile_definitions(YourTarget PRIVATE
-DCMAKE_INSTALL_FULL_LIBEXECDIR_KF5=\"${CMAKE_INSTALL_FULL_LIBEXECDIR_KF5}\")

And then summon it as a full path: CMAKE_INSTALL_FULL_LIBEXECDIR_KF5 "/kdesu".

HTH,
Aleix

[1] https://lxr.kde.org/ident?_i=kdesu&_remember=1