[Bug 249987] New: Kmail 2 does not warn that migration will use a large amount of disk space/does not calculate the space required

[mps]

https://bugs.kde.org/show_bug.cgi?id=249987

           Summary: Kmail 2 does not warn that migration will use a large
                    amount of disk space/does not calculate the space
                    required
           Product: KMail 2
           Version: 2.0 beta1
          Platform: Unlisted Binaries
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: kdepim-bugs at kde.org
        ReportedBy: moabi2000 at gmail.com


Version:           2.0 beta1 (using KDE 4.5.0) 
OS:                Linux


I migrated to kmail 2 (kdepim 4.4.93). My setup is based only on pop and
maildir.

Migration has so far consumed 3.5 Gb (and indexing continues). This used up all
free space in my /home. Kmail should a) warn that migration requires
significant disk space and b) if possible estimate the space required and warn
the user if there is not enough.

This is a problem, because in my case I ran out of space and so kmail wouldn't
show me message bodies until I freed up more space.

I realise that it is probably akonadi/nepomuk actually using the space, but the
kmail migration should warn before starting.

On the good side, once I freed up diskspace, it all worked fine. Well done!

Reproducible: Didn't try

Steps to Reproduce:
Migrate a existing maildir hierarchy to kmail 2 under conditions of low disk
space. In my case free space was about 1/5 of the total size of my maildirs.

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