please test 2.0
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On 01.03.2013, at 15:36, Martin Dias <[hidden email]> wrote: > On Mon, Feb 25, 2013 at 10:55 PM, Yanni Chiu <[hidden email]> wrote: >> On 25/02/13 4:25 PM, Martin Dias wrote: >>> >>> >>> What version was you loading? >> >> >> Fuel-MartinDias.685 which corresponds to version 1.8 >> >> >>> (actually, the code that has been integrated should be the definitive >>> one for Fuel 1.9, but the configuration still needs a revision for old >>> Pharos) >> >> >> Would it be easy to unload Fuel 1.9 from Pharo-2.0, and load Fuel 1.8 >> instead? > > I tried to load Fuel 1.8 in Pharo 2.0 but it seems that there is an > incompatibility with Date and DateAndTime… Should work from 1.8.1 on upwards though... |
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On 01/03/13 10:10 AM, Max Leske wrote: > > On 01.03.2013, at 15:36, Martin Dias <[hidden email]> wrote: > >> On Mon, Feb 25, 2013 at 10:55 PM, Yanni Chiu <[hidden email]> wrote: >>> >>> Would it be easy to unload Fuel 1.9 from Pharo-2.0, and load Fuel 1.8 >>> instead? >> >> I tried to load Fuel 1.8 in Pharo 2.0 but it seems that there is an >> incompatibility with Date and DateAndTime… > > Should work from 1.8.1 on upwards though... The description for 1.8.1 says: - same as 1.8 - fix: serialization / materialization of Date objects. The description for 1.8.2 says: - Date / DateAndTime are now serialized consistently across different images (Squeak and Pharo) So, the question is: will something serialized by 1.8, load into 1.8.1, 1.8.2? I guess I'll find out shortly. My other option is to do the migration to 1.9 in Pharo-1.4, before moving to Pharo-2.0. BTW, the slowest part of a migration is upgrading the Fuel version for each set of Fuel files being migrated. Do you think it would work to have a Fuel Tanker file for Fuel version 1.9, that can be quickly loaded? Hold on - that would mean you'd need some version of Fuel loaded. |
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I'm sorry but AFAIK you won't be able to materialize in 1.8.x the files you serialized with 1.8. Maybe Max has some trick to do it? And you are true: tanker needs fuel so it won't work :)
Some time ago we thought in a nasty way of have two versions of fuel at the same time: take a fuel version, then rename all extension methods adding a prefix. But it's ugly and it should be done with care.
This year I realised that it is possible to hack the image to enable several versions of the same package at the same time. I should ask Marcus again about this, I think it should be a good solution. Others in this mailing-list can correct me, but IMO to do it well, we first need a good modules system... but before maybe we can do some hacky solution to easy migration of files. It could be fun.
Martin On Fri, Mar 1, 2013 at 5:53 PM, Yanni Chiu <[hidden email]> wrote:
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Or... really i'm not sure what is the Right Solution, but at least I read of a couple of prototypes that achieved to load multiple versions of classes and methods, so it is technically feasible. The magic of Smalltalk!
On Fri, Mar 1, 2013 at 7:54 PM, Martin Dias <[hidden email]> wrote:
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In reply to this post by tinchodias
On 01/03/13 1:54 PM, Martin Dias wrote: > I'm sorry but AFAIK you won't be able to materialize in 1.8.x the files > you serialized with 1.8. Maybe Max has some trick to do it? I got an exception: FLBadVersion: Materialization error. Unexpected stream version 18 where it should be 182. I disabled the version check, and things loaded fine. But, I've yet to find a saved file with a Date or DateAndTime instance. |
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