New subject: [Pharo-dev] Re: [ann] snapshotcello

24 Jul 2013


      On Jul 23, 2013, at 11:51 PM, Dale K. Henrichs dale.henrichs@gemtalksystems.com wrote:
...
Stef,
I haven't completely wrapped my brain around what SnapshotCello does so I don't have an informed opinion ... the fact that you found a need to invent SnapshotCello does speak volumes to the fact that there is a need that is going unmet:).
However, I don't like the fact that you end up sending a non-spec message to make this work (#populateSpec:with:). Tools like Versioner will not be able to rewrite a method like this correctly so it is a less than satisfactory workaround to the method literal limit.
Indeed. May be in the future we could recreate a simple compliant spec driven method by interpreting the 
existing configuration trees but this requires some work.
...
With that said it _is_ performing a useful function ...
I have recently come up with an approach to addressing the method literal limit from a slightly different angle and I would assume that SnapshotCello could be recast to use this "approved approach" when the new techinique becomes available. At that time it would make sense to roll the SnapshotCello funtionality into the MetacelloToolBox...
Dale
[1] http://forum.world.st/Loading-problem-in-Seaside-tp4699965p4700161.html
----- Original Message -----
| From: "Stéphane Ducasse" stephane.ducasse@inria.fr
| To: "Moose-related development" moose-dev@iam.unibe.ch
| Cc: "Any question about pharo is welcome" pharo-users@lists.pharo.org, "Pharo Development List"
| pharo-dev@lists.pharo.org
| Sent: Tuesday, July 23, 2013 2:17:50 PM
| Subject: [Moose-dev] Re: [ann] snapshotcello
| 
| Nice to see SnapshotCello coming to live. May be it should be
| integrated to Metacello.
| Because everybody may need this cool feature.
| 
| Stef
| 
| On Jul 23, 2013, at 10:43 PM, Tudor Girba tudor@tudorgirba.com
| wrote:
| 
| > Hi,
| > 
| > Stef and I developed Snapshotcello, a little utility that enables
| > you to freeze a snapshot of a given configuration based on what is
| > already loaded in your current image.
| > 
| > The idea is simple. You develop against the latest versions of all
| > packages, and commit your changes for each package. When you are
| > ready for a release, you assemble your image, and generate a
| > snapshot version that can be reloaded later.
| > 
| > Here is an example of how it can work to take a snapshot of a
| > development version:
| > Snapshotcello new
| >     configurationClass: ConfigurationOfMoose;
| >     configurationVersion: #development;
| >     publishVersion: '4.8-snapshot'
| > 
| > You can find more details here:
| > http://www.tudorgirba.com/blog/snapshotcello-take-a-snapshot-when-you-re-rea...
| > 
| > You can get the code at:
| > Gofer new
| >     smalltalkhubUser: 'girba' project: 'Snapshotcello';
| >     package: 'ConfigurationOfSnapshotcello';
| >     load.
| > (Smalltalk globals at: #ConfigurationOfSnapshotcello)
| > loadDevelopment
| > 
| > Cheers,
| > Doru
| > 
| > --
| > www.tudorgirba.com
| > 
| > "Every successful trip needs a suitable vehicle."
| > 
| > 
| > 
| > 
| > 
| > _______________________________________________
| > Moose-dev mailing list
| > Moose-dev@iam.unibe.ch
| > https://www.iam.unibe.ch/mailman/listinfo/moose-dev
| 
| 
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Re: [Pharo-dev] Re: [ann] snapshotcello