Ok, please merge Monticello-cmm.568 from the Inbox and the new SCM
features should work!

On Fri, Sep 6, 2013 at 6:22 PM, David T. Lewis <lewis at mail.msen.com> wrote:
> Bravo! This is great stuff.
>
> I loaded Monticello-cmm.566 from the inbox, and I want to try out the
> new 'browse mc origin' and 'browse mc versions' feature, which shows
> up in the methods pane and class list pane as promised. But I can't
> figure out how to activate them so they are not greyed out??? I'm trying
> to browse a class in the sound package (just to see what it does), so
> I added the http://box4.squeak.org:8888/trunk repository to package
> Sound in my MC browser, but no joy. How do I activate the 'browse mc versions'
> feature?
>
> Thanks for doing this Chris!
>
> Dave
>
> On Fri, Sep 06, 2013 at 04:46:46PM -0500, Chris Muller wrote:
>> An on-going concern of the community is sustaining and improving our
>> trunk development process.  Currently source.squeak.org employs an old
>> version of SqueakSource running on an old Squeak 3.x image on an old
>> interpreter VM.  I have deployed a prototype replacement on box4 with
>> several improvements:
>>
>>   - It is running on the latest trunk image with a recent Cog VM.
>>   - The SqueakSource package has been upgraded to generically support
>> any type of backend instead of only a Filesystem-based back end.
>>   - A new subclass for a Magma-based back end was added and used by
>> the prototype.
>>   - Startup time is > 10X faster than with the FileSystem (which uses
>> ReferenceStream).
>>   - Commits are > 100X faster because it's simply a DB commit rather
>> than re-serializing the entire model with ReferenceStream for every
>> change.
>>   - However, we will not notice a speed up because we have hacked
>> SqueakSource to bypass the Filesystem subclass for a
>> save-the-image-every-hour persistence.  But this is unsustainable and
>> dangerous.
>>   - The SqueakSource-software now responds to SIGTERM to conduct a
>> graceful shutdown and exit.
>>   - Use of the Magma back end improves the SCM tool by letting us
>> browse all 'mc versions' of any method or class-definition.  We can
>> also browse the 'mc origin' of same -- which is just the oldest
>> version it is known to exist in (which, if we would ensure ALL
>> ancestry is present, then it will truly be the origin).  Happy
>> birthday Tim Rowledge.
>>
>> I have done VERY minimal testing.  But we need to finally begin the
>> process of moving this crucial component our community away from the
>> costly Hetzner box and onto Gandi-based servers provided by the SFC,
>> so please try it and provide feedback!
>>
>> To use the new prototype:
>>
>>   1) Use a recent trunk image.
>>   2) Install Monticello-cmm.565 from the Inbox.  'browse mc versions'
>> and 'browse mc origin' will be added to methods and class-list menus
>> (but are initially grayed out).
>>   3) Add this repository to Monticello:
>>
>>     MCHttpRepository
>>         location: 'http://box4.squeak.org:8888/trunk'
>>         user: 'id'
>>         password: 'pw'
>>
>>   4) Add the above repository to whichever packages you wish to invoke
>> the new SCM features.
>>
>>  - Chris
>>
>> PS -- This prototype only has data loaded for the trunk project as of
>> about one week ago.  It is not kept in-sync with production trunk,
>> this is just a test.
>