On Aug 10, 2016 2:15 AM, "Didier Roche" <didro...@ubuntu.com> wrote: > > Le 09/08/2016 à 23:41, Joe Talbott a écrit : > > Dear Snapcrafters, > > Hey Joe, > > > > The wiki introduced the concept of sub-parts and used namespacing to > > associate a list of sub-parts with a project-part. However the > > concept was ill-conceived and now needs to be removed. In essence, > > all parts should be top level parts. Each entry in the wiki should > > identify one or more parts from a snapcraft.yaml file that are > > considered to be useful to other snapcraft users. A current example > > of subparts might look like this: > > > > --- > > origin: https://github.com/josepht/snaptastic > > maintainer: Joe Talbott <joe.talb...@canonical.com> > > description: Some fun parts > > project-parts: fun-part > > parts: [a, b, c] > > > > Which would produce parts ‘fun-part/a’, ‘fun-part/b’, and > > ‘fun-part/c’. The new approach should be: > > > > --- > > origin: https://github.com/josepht/snaptastic > > maintainer: Joe Talbott <joe.talb...@canonical.com> > > description: Some fun parts > > parts: [fun-part, fun-part-a, fun-part-b, fun-part-c] > > > > Where the hierarchy is removed and each part is a top-level part. The > > part names will need to be changed in the snapcraft.yaml file as well. > > > > Namespacing was really nice for things like desktop/ parts > (desktop/gtk3, desktop/gtk2, desktop/qt5, desktop/qt4, > desktop/glibonly). There is as well mqtt-paho/python2 and > pqtt-patho/python3. > A lot of existing snaps are using those already and I find it really sad > that we are going to break backward compatibility for a feature that was > prominently advocated for in our blog posts like > http://blog.sergiusens.org/posts/The-Snapcraft-Parts-Ecosystem/. > Developers prefer to work on their snap rather than fighting for keeping > it working with latest snapcraft/store, please keep that in mind. > > I think at least a reasonable approach would be to have a transition > plan for a period of time backed into the tool. That means that > snapcraft needs to be able to detect namespaced parts, and suggests > corresponding new part name to use (as we only have 7 of them, that > seems reasonable to handle the mapping by hand). I think that will put a > nice precedent on how we care about developer experience, and try to > minimize the impact on everyone. Is there anything like this planned?
The plan would be to convert the wiki parts and their origins but to have a deprecation warning for any snapcraft.yaml using the namespaced part names and to have snapcraft automatically convert '/' to '-' during part loading. This should lessen the pain for developers and allow them to make plans to update their snapcraft.yaml files. Thanks, Joe > > Also, please do not break this feature before the parts are transitioned > to the new name scheme. > > My 2 cents > Didier > > > -- > Snapcraft mailing list > Snapcraft@lists.snapcraft.io > Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/snapcraft
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