[Box-Admins] squeaksource.com

[Chris Muller]

Hi Dave,

Yes, because of the format change I used Ma object serializer, because
it is mostly agnostic to the squeak version.  I've attached version of
Ma Object Serializer of that time which can run correctly in that
image.  After loading that SAR, you can export the object with
something like this:

   MaObjectSerializer new fileOut: SSRepository current storage
toFileNamed: 'data.obj.ma' in: FileDirectory default.

Now, you can go into a 5.1 / recent image and use Ma object serializer
to load it.  Unfortunately, there was a minor file-format change since
that 2009 version, so you have to use that same version to load it
initially.  Load the same SAR into the 5.1 image to iniitally load the
object.

  MaObjectSerializer fileIn: '/the/fully/qualified/filename'    "inspect it?"

Now you can finally load Ma Serializer 1.6 from SqueakMap, and export
the object one last time, this time in the "new" Ma format.

  MaObjectSerializer new fileOut: self toFileNamed: 'data.obj' in:
FileDirectory default

It should now be ready to use with the latest code at
source.squeak.org/ss.  You can test with just the data.obj file you
don't need any of the MCZ's.

When the time comes, we should run the new server with just good ol'e
SSFilesystem repository.  No image persistence and no Magma.  The save
time is slow, but it runs in the background and if new commits come in
in the meantime, it'll just save again after the current save is done.
  It keeps the last 35 or so generations of backup obj files.

 - Chris


On Thu, Mar 30, 2017 at 6:01 PM, David T. Lewis <lewis at mail.msen.com> wrote:
> On Fri, Mar 24, 2017 at 01:57:25PM -0500, Chris Muller wrote:
>>
>> Squeaksource is important.  Is there any reason not to update the
>> image and code ASAP?
>>
>
> Hi Chris,
>
> I have not had much time to look at this, but can you say anything about what
> is required to read the serialized repository from the old image into an up to
> date SqueakSource image? I think I remember you saying that you had used Magma
> serializer to do this, but I don't know what issues may have been involved.
>
> I have tried generating a new data.obj from the current squeaksource.com image,
> then loading it into Squeak 4.6 or a 32-bit Squeak 5.0, but ReferenceStream
> deserializing is failing fairly early in the load. The data.obj is fine, because
> I can reload it into the original image. But I am not able to load it into
> either the V3 or Spur 32 bit images with newer SqueakSource package, so I am
> suspecting that this may be something to do with class changes in the SqueakSource
> package. I can probably figure it out, but I thought I should ask you first
> before I spend much time debugging. Does any of this ring a bell for you?
>
> Thanks!
> Dave
>
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