Portable Calibre

TedC · 06-26-2011, 06:08 AM

Apparently, I previously submitted this in the wrong area....

Many thanks for an absolutely well-thought-out and implemented program. However, I have a question re the portable version (0.8.7).

I would think that the portable version would NOT write to the registry. However, after installing I searched the registry for instances of 'Calibre' and found 27 key name matches, 23 value name matches, and 30 data name matches under Trolltech (HKCU Software). After deleting the registry entries and rerunning the program, the entries reappear. Should the portable version be writing anything to the registry, at all?

Is this a bug?

Once again, thanks for a great program. -- Ted Ciemier

itimpi · 06-26-2011, 06:33 AM

Trolltech was the company who originally developed Qt, so I suspect that the registry keys are being done by the Qt library that is used by Calibre. If that is the case these registry accesses are very unlikely to be removed as they will be buried somewhere in the guts of Qt and that is maintained (I think) by Nokia and thus outside Calibre's control as far as getting bugs/issues fixed is concerned.

kovidgoyal · 06-26-2011, 11:30 AM

Yeah, those reg entries come from Qt. calibre itself does not ever write to the registry whether in a portable version or not (the calibre .msi installer does write to the registry, but not calibre itself).

I'll look into it and see if its possible to convince Qt to not write to the registry, but I'm not hopeful.

kovidgoyal · 06-26-2011, 11:41 AM

I found some way to tell Qt to use a config dir rather than the registry. I've implemented it for the next release, hopefully it will take acre of those registry keys. I haven't tested it as I am currently in the middle of refactoring the Tag Browser, so let me know if it makes a difference in 0.8.8

TedC · 06-28-2011, 06:02 AM

Thank you for your responses. I look forward to the new version and will check it out.

Axis · 06-24-2012, 02:38 AM

Quote:

Originally Posted by kovidgoyal

I found some way to tell Qt to use a config dir rather than the registry. I've implemented it for the next release, hopefully it will take acre of those registry keys. I haven't tested it as I am currently in the middle of refactoring the Tag Browser, so let me know if it makes a difference in 0.8.8

Hi.

I've tested the latest portable version, v0.8.57: it still writes to registry (HKCU Software TrollTech)

Aleyst · 06-24-2012, 08:19 AM

Another thing I noticed is that calibre portable leaves a users folder on the root of the drive with an empty qt folder inside, anyway to stop it?
I keep having to delete it off the drive after I close calibre (which is often as my laptop is a piece of poop).

Axis · 06-27-2012, 12:52 AM

Quote:

Originally Posted by Aleyst

Another thing I noticed is that calibre portable leaves a users folder on the root of the drive with an empty qt folder inside, anyway to stop it?
I keep having to delete it off the drive after I close calibre (which is often as my laptop is a piece of poop).

So It's not portable at all

Aleyst · 06-27-2012, 01:15 AM

It used to be lol, but seeing as I run it on an external drive to move between my laptop and net book, it's portable enough, just annoying

DoctorOhh · 06-27-2012, 03:43 AM

Quote:

Originally Posted by Axis

So It's not portable at all

It is definitely portable in the fact that you can run it from a USB drive without installing calibre on the local computer.

06-26-2011, 06:08 AM	#1
TedC Junior Member Posts: 3 Karma: 10 Join Date: Jun 2011 Device: Kindle	Portable Calibre Apparently, I previously submitted this in the wrong area.... Many thanks for an absolutely well-thought-out and implemented program. However, I have a question re the portable version (0.8.7). I would think that the portable version would NOT write to the registry. However, after installing I searched the registry for instances of 'Calibre' and found 27 key name matches, 23 value name matches, and 30 data name matches under Trolltech (HKCU Software). After deleting the registry entries and rerunning the program, the entries reappear. Should the portable version be writing anything to the registry, at all? Is this a bug? Once again, thanks for a great program. -- Ted Ciemier Last edited by TedC; 06-28-2011 at 06:02 AM.

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06-26-2011, 06:33 AM	#2
itimpi Wizard Posts: 4,553 Karma: 950151 Join Date: Nov 2008 Device: Sony PRS-950, iphone/ipad (Marvin/iBooks/QuickReader)	Trolltech was the company who originally developed Qt, so I suspect that the registry keys are being done by the Qt library that is used by Calibre. If that is the case these registry accesses are very unlikely to be removed as they will be buried somewhere in the guts of Qt and that is maintained (I think) by Nokia and thus outside Calibre's control as far as getting bugs/issues fixed is concerned.

06-26-2011, 11:30 AM	#3
kovidgoyal creator of calibre Posts: 45,201 Karma: 27110894 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Yeah, those reg entries come from Qt. calibre itself does not ever write to the registry whether in a portable version or not (the calibre .msi installer does write to the registry, but not calibre itself). I'll look into it and see if its possible to convince Qt to not write to the registry, but I'm not hopeful.

06-26-2011, 11:41 AM	#4
kovidgoyal creator of calibre Posts: 45,201 Karma: 27110894 Join Date: Oct 2006 Location: Mumbai, India Device: Various	I found some way to tell Qt to use a config dir rather than the registry. I've implemented it for the next release, hopefully it will take acre of those registry keys. I haven't tested it as I am currently in the middle of refactoring the Tag Browser, so let me know if it makes a difference in 0.8.8

06-28-2011, 06:02 AM	#5
TedC Junior Member Posts: 3 Karma: 10 Join Date: Jun 2011 Device: Kindle	Thank you for your responses. I look forward to the new version and will check it out.

06-24-2012, 08:19 AM	#7
Aleyst Zealot Posts: 109 Karma: 2800 Join Date: Jul 2010 Location: Australia Device: PW (7th Gen), PW (10th Gen)	Another thing I noticed is that calibre portable leaves a users folder on the root of the drive with an empty qt folder inside, anyway to stop it? I keep having to delete it off the drive after I close calibre (which is often as my laptop is a piece of poop).

06-27-2012, 01:15 AM	#9
Aleyst Zealot Posts: 109 Karma: 2800 Join Date: Jul 2010 Location: Australia Device: PW (7th Gen), PW (10th Gen)	It used to be lol, but seeing as I run it on an external drive to move between my laptop and net book, it's portable enough, just annoying

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