» Patch Conversions & Pack Versioning
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Patch Conversions & Pack Versioning

Pretty early in its devvvvelopment vvvv introduced an automatic patch conversion system that allowed us devvvvelopers to change nodes' behaviours, namings and defaults under the hood, while converting users' patches in a way that no damage is done to old patches.

The diffff.xml file in vvvvs lib folder has all the info of changes between the different versions.
In many cases we ship legacy nodes with the unchanged behaviour but now change their name to reflect that they are legacy. The diffff.xml then only needs to convert the old patches in a way that the legacy node is taken and not the node with the new behaviour...

Since we now also have pretty huge packs, managed by external devvvvelopers, we now also introduce versioning per pack.
Packs from now on may ship a version.info file and a diffff.xml file.
When vvvv starts up it figures out which packs are loaded and stores the versioning infos of all packs into the patches to be able to convert them later on.

If you are an author of a pack or just want to learn more about pack versioning, please have a look here:
https://github.com/vvvv/vvvv-sdk/tree/develop/vvvv45/tests/testPack
This folder shows you some ideas about conversion and also back conversion.

If you feel like it, you could temporarily move this folder into your packs folder to have a try.

Read the diffff.xml for further info. You might want to use this as your starting point when creating your own diffff.xml.

have ffffun!!

gregsn, Sunday, Feb 9th 2014 Digg | Tweet | Delicious 0 comments  
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Shoutbox

~11h ago

joreg: Interested in #visualprogramming with #vvvv? Meetup in #berlin on the 25th: 10-berlin-vvvv-meetup Featuring @kopffarben

~1d ago

ggml: is pepperoni dmx adapter still expected to work with b38 ?

~1d ago

bo27: @sinus hi! Thanks for using the template. Run is for endusers and it kills explorer. Try developer.bat to access patches

~1d ago

sinus: @bo24: sorry for da hassle. everything´s fine again. several restarts did the job.

~1d ago

sinus: @bo24: my mail db@servus.at

~1d ago

sinus: @IvanRastr aka bo24: found your project template, tested run bat.file, now my screen is black. only cursor. what to do?

~6d ago

cznickesz: @tonfilm thanks for the info. Can´t wait to give it a try!

~8d ago

tonfilm: @cznickesz #vvvv #vl #xenko integration is not ready for the public yet, it's still under heavy development... more updates soon.

~8d ago

cznickesz: Possibly dumb question: is there any release containing xenko-integration right now?