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List:       kde-devel
Subject:    Re: KService / KRun / kioexec cannot be started
From:       Gregor Mi <codestruct () posteo ! org>
Date:       2014-12-27 12:13:57
Message-ID: 549EA285.3070509 () posteo ! org
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thanks for the hint, but isLocalFile() is true. See below for debugging details:

On 26/12/14 14:37, David Faure wrote:
> kioexec is only used when a program that can't handle remote URLs is being 
> launched with a remote URL.
> 
> I really doubt this is the issue here, or something is very buggy. Are you 
> 100% sure that the code tries to run kioexec, with a local file? That should 
> not happen.
>
> Ah, maybe ksnapshot constructs a QUrl wrongly, from a local path and without a 
> scheme, and then isLocalFile() return false. Debug the contents of the URLs 
> being passed to KRun.

ksnapshot.cpp,472: KRun::run(*service, list, this, isTempfile);

url.isLocalFile():  true
list: (QUrl("file:///home/gregor/dev/src/ksnapshot/build/snapshot_J12635.png") )
isTempfile: true

return value: true
(which should probably not be the case because the program did not start properly)

krun.cpp:
,714: bool useKToolInvocation = !(tempFiles || _service.entryPath().isEmpty() ||
!suggestedFileName.isEmpty());
debug: useKToolInvocation: true

,730: return runTempService(_service, _urls, window, tempFiles, suggestedFileName, asn);

,438:     return runCommandInternal(args.join(" "), &_service,
KIO::DesktopExecParser::executablePath(_service.exec()),
                              _service.name(), _service.icon(), window, asn, path);

,344: int pid = KProcessRunner::run(command, executable, id, workingDirectory);

debug: command: "/home/gregor/dev/kf5/usr/lib64/libexec/kf5/kioexec --tempfiles gwenview
%U -caption Gwenview --icon gwenview
file:///home/gregor/dev/src/ksnapshot/build/snapshot_M18000.png" (so kioexec is involved)

debug: pid: 18400


> And why is kded5 not running? It's not installed?

I thought this is maybe normal when developing under KDE4, isn't it?

Regards

Gregor


> On Friday 26 December 2014 13:46:05 Gregor Mi wrote:
>> Hi,
>>
>> I would need some feedback regarding the following kioexec issue:
>>
>> I build the latest KF5 from scratch using kdesrcbuild according to [1]. Then
>> I open ksnapshot and use the SendTo menu to start gwenview for example or
>> kolourpaint. I can see the application launch feedback cursor but the
>> application does not actually start.
>>
>> So, since starting an application seems to be a very basic functionality, I
>> wonder if this is just on my system or if anybody else has this issue, too.
>>
>> If there are any changes to the current build&runtime setup or things which
>> are not documented yet, I would like to update the Frameworks/Building wiki
>> article [1].
>>
>> Regards
>>
>> Gregor
>>
>> [1] https://community.kde.org/Frameworks/Building
>>
>> On 19/12/14 11:34, Gregor Mi wrote:
>>> Hi,
>>>
>>> I narrowed the problem down to that `kioexec` cannot be started.
>>>
>>> I can reproduce that by starting the latest KF5 ksnapshot and invoke any
>>> entry in the SendTo menu.
>>>
>>> This call in ksnapshot.cpp fails: (1) `KRun::run(*service, list, this,
>>> isTempfile);` It shows the KToolInvocation but no application appears.
>>>
>>> When I change the call to (2) `KRun::run(*service, QList<QUrl>(), this,
>>> isTempfile);` (pass no arguments) the call succeeds.
>>>
>>> In case (2) the service executable is started directly. In case (1)
>>> kioexec is used which fails to start.
>>>
>>> On the console it says
>>> ```
>>> Couldn't start kded5 from org.kde.kded5.service:
>>> QDBusError("org.freedesktop.DBus.Error.ServiceUnknown", "The name
>>> org.kde.kded5 was not provided by any .service files") , falling back to
>>> running kbuildsycoca5 ```
>>>
>>> Might this be the reason that kioexec does not work? I am glad for any
>>> hint.
>>>
>>> Gregor
>>>
>>> On 30/11/14 21:19, Gregor Mi wrote:
>>>> Hello,
>>>>
>>>> what is the current state of the KService in frameworks branch?
>>>>
>>>> I ask because ksnapshot's SendTo menu invokes a KService method to start
>>>> the chosen application. When I click a menu item the launch indicator
>>>> appears next to the mouse for a short time. But no program gets started.
>>>>
>>>> I use kdesrcbuild to build everything and work on KDE 4 with KF5
>>>> environment variables set. The behaviour can be reproduced on at least
>>>> one other independently setuped computer.
>>>>
>>>> Gregor
> 

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