Calibre 0.7.x can't open UNC path

[adfrad]

Hi,
I have just upgraded from .6 to .7, and am experiencing some strange issues.
I store my DB and files on a share accessed by UNC. e.g. \\server\ebooks\Iain Banks\Complicity
The books are accessible to Calibre and it can copy them accross to my ebook reader, however hitting "o" or clicking the hyperlink to open the folder fails. I don;t get any error messages, and the program doesn;t hang.. it just doesn't do anything.
I'[ve been running like this for a couple of years without any issues, and it's only since I upgraded that it's occurred. I'm on 0.7.7 and the issue still remains. Does anyone know what the issue is and do you have a workaround.
Thanks,
Adam

[DoctorOhh]

Originally Posted by adfrad

however hitting "o" or clicking the hyperlink to open the folder fails. I don;t get any error messages, and the program doesn;t hang..

Ever since 0.7.x in order for this to work the drive has to be mapped.

[JvdW]

Originally Posted by dwanthny

Ever since 0.7.x in order for this to work the drive has to be mapped.

True, its a bug in QT, NOT Calibre although the code might have changed between 0.6, where it works and 0.7 where it doesn't.
If you can't map a drive, for what ever reason, I might be willing to upload a recompiled QT-4.6.2 dll for you.
I found a bug report in QT's bugtracker but doubt if they are going to fix it. Didn't see any developers comments except 'future version' status

Maybe the simplest solution would be to directly call ShellExecute from Calibre instead of going through QDesktopServices.openUrl() which contains this bug.

I'll check later today and if viable I'll post a simple patch until this is resolved by QT or incorporated into Caliber.

Regards,

Joop

[adfrad]

Thank you for your fast answers.
I have mapped a drive, and it is now behaving normally

[JvdW]

Originally Posted by JvdW

I'll check later today and if viable I'll post a simple patch until this is resolved by QT or incorporated into Caliber.

To follow up I did the following:
- install Calibre-0.7.7
- downloaded the source of calibre-0.7.7
- unpack
- rename %INSTALL_DIR%\calibre\Lib\site-packages\calibre\gui2\__init__.pyo to __init__.pyo.orig
- find \calibre-0.77\src\calibre\gui2\__init__.py
- copy that to %INSTALL_DIR%\Lib\site-packages\calibre\gui2\__init__.py
- load __init__.py into an editor
- goto line 582 (def open_url(qurl))
- select from 582 to 596
- delete
- replace with the following

def open_url(qurl, path):
    paths = os.environ.get('LD_LIBRARY_PATH',
                '').split(os.pathsep)
    paths = [x for x in paths if x]
    if isfrozen and islinux and paths:
        npaths = [x for x in paths if x != sys.frozen_path]
        os.environ['LD_LIBRARY_PATH'] = os.pathsep.join(npaths)
    if iswindows:
        os.startfile(path)
    else:
        QDesktopServices.openUrl(qurl)
    if isfrozen and islinux and paths:
        os.environ['LD_LIBRARY_PATH'] = os.pathsep.join(paths)


def open_local_file(path):
    url = QUrl.fromLocalFile(path)
    open_url(url, path)

- save
- start calibre and hopefully no errors and a working UNC solution.
(error might be that indents don't match, python is sensitive to extra spaces, or tabs instead of spaces. Watch out for editors which auto convert spaces<->tabs!!)
- rinse and repeat if new version come out and Kovid doesn't like my hacking or there is no other solution.

Problem I workaround is QDesktopServices.openUrl(qurl) function which converts qurl back to a localfile but messes up big time on that.
Example
a = '\\server\path\a.pdf'
b = fromLocalFile(a)
c = toLocalFile(b)
c is not equal to a, it should!

It works for me, might not for you, be careful with your data, BACKUP if you don't know what you're doing, Told you, you have been warned!
Regards,

Joop