Re: libparted-fs-resize: HFS/FAT file system resizing library

[Jim Meyering]

Curtis Gedak wrote:
> On 12-02-06 04:05 AM, Jim Meyering wrote:
>>>>      parted provides a new library, libparted-fs-resize, for resizing
>>>>      HFS+ and FAT file systems.  This is the subset of the FS-manipulation
>>>>      functionality removed in parted-3.0 for which we have found no free
>>>>      alternative.  That library provides only these entry points:
>>>>        ped_file_system_close
>>>>        ped_file_system_get_resize_constraint
>>>>        ped_file_system_open
>>>>        ped_file_system_resize
>>>>      so when using it you must also link with libparted.
>>>>
>>>> Feedback welcome, the sooner the better.
>>> Then when I check the /usr/local/include/parted directory, the
>>> filesys.h file contains three of the above listed functions.  However,
>>> the ped_file_system_get_resize_constraint function is missing.
>> From NEWS:
>> Hi Curtis,
>> Thanks a lot for the speedy feedback.
>> I did indeed forget to declare that function in the filesys.h.
>
> Hi Jim,
>
> Thank you for all your work on parted.  Your latest diff file seems to
> have done the trick.  :)
>
> My testing with GParted and parted-git and the 10 patches and 1 diff
> file applied has gone very well on a 512 byte sector disk drive.
>
> With this new library I have been able to successfully:
>  - shrink HFS and HFS+ file systems.
>  - grow and shrink FAT16 and FAT32 file systems.
>
> While testing I did discover the following two limitations:
>
> A) With FAT16 when shrinking or growing, the partition must be greater
> than 32 MiB in size.  Smaller sizes result in warnings that libparted
> does not support the operation.
>
> B) With FAT32 when shrinking or growing, the partition must be greater
> than 256 MiB in size.
> Smaller sizes result in warnings that libparted does not support the 
> operation.
>
> There are some subtle exceptions to these limitations when the
> partition size is exactly 32 MiB or 256 MiB respectively.
>
> These limitations are not of concern to me since I believe these
> limitations also existed in parted prior to version 3.0.
>
>
> Now that you have this resize functionality working again, are there
> any specific tests that you would like me to perform?
>
> Also do you plan to create a new official release of parted that
> includes the libparted-fs-resize library?

Hi Curtis,

Thank you very much for all the testing.
I've just pushed that series.

Yes, I would like to make a release ASAP, so if anyone can help
collect the few not-yet-applied bug fixes, rebasing them and maybe
adding that missing test, a NEWS-update, etc., I'd appreciate it.