[Digikam-devel] [Bug 137770] New: Digikam doesn't keep original unix rights when modifying comments/tags/rating

[Fabien]

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http://bugs.kde.org/show_bug.cgi?id=137770         
           Summary: Digikam doesn't keep original unix rights when modifying
                    comments/tags/rating
           Product: digikam
           Version: 0.9.0-svn
          Platform: Ubuntu Packages
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: digikam-devel kde org
        ReportedBy: fabien.ubuntu gmail com


Version:           0.9.0-svn (using KDE KDE 3.5.2)
Installed from:    Ubuntu Packages
OS:                Linux

Like some people complained about digikam overwriting the original image file, I thought they could just change unix right to ensure digikam (or any software) won't change the file.
I tested it, but it doesn't work...
And, I also saw that digikam rewrite the the file even if it doesn't modify it.

Digikam configuration : all options in metadata unset

I changed the file rights in the album to just read-only (0400) then started digikam.
If I try to assign a new comment/tag/rate to an image, digikam will write the file (with the same md5sum, but new date) with defaut umask rights (eg file will be 0644).

I think it should keep unix right intact, but also don't try to modify files that are  read-only and don't update file date when no modification is done.