Great - thanks for the clarification, that makes sense. Have fun, Markus
On Tue, 8 Jan 2019 13:11:29 -0800 Christopher Collins <ch...@runtime.io> wrote: > The next version of the newt tool will be backwards compatible with > older Mynewt repos. The latest versions of the Mynewt repos are > taking advantage of a new newt feature (syscfg values in `pkg.yml`), > so they do not work with older versions of newt. If a repo does not > use this new feature, then it will be compatible with both old and > new versions of the newt tool. > > Backwards compatiblity is important, and it is always bad when an > upgrade breaks something. This particular feature seemed important > enough to introduce such breakage because it will actually help to > maintain backwards compatibility in the future. The feature allows > Mynewt YAML files to switch their configuration based on the version > of newt being used. For example: > > pkg.item.NEWT_FEATURE_FOO > - ... > > That item only gets processed if the newt tool injects the > `NEWT_FEATURE_FOO` setting. The item does not get processed with > older versions of newt which do not support the `FOO` feature. Older > versions of newt could not process conditional items in most of the > YAML files, so would always process the above item. > > Chris > > On Tue, Jan 08, 2019 at 11:23:58AM -0800, markus wrote: > > Hey Chris, > > > > that is understood and fine, the question and to some degree > > concern is the other way around. Will the next version of the newt > > tool be incompatible with all existing repositories? > > > > I understand that apache-mynewt-core and all other mynewt managed > > repositories don't have a problem with such a change. But what about > > all the other repositories? > > > > Thanks, > > Markus > > > > > > > > On Tue, 8 Jan 2019 10:29:24 -0800 > > Christopher Collins <ch...@runtime.io> wrote: > > > > > Hi Markus, > > > > > > On Tue, Jan 08, 2019 at 10:15:22AM -0800, markus wrote: > > > > Hi Lukasz, > > > > > > > > got it, I guess I have to start building newt. > > > > > > > > Follow up question: Does this mean the next release will break > > > > all repositories out there or is backwards compatibility still > > > > on the roadmap for this release? > > > > > > The next mynewt release will only be compatible with the version > > > of newt that is released at the same time. An attempt to use an > > > older newt with the newt repos will fail with instructions to > > > upgrade newt. > > > > > > Chris > >
