Create an MSBuild property for the minimum OS version
(`SupportedOSPlatformVersion`) we support for a given platform (named
`[platform]MinSupportedOSPlatformVersion`), and use it in most tests instead
of hardcoding the min OS version (which would otherwise have to be updated
every time we bump the min OS version).
This makes it not necessary to check for the currently selected Xcode in our
system dependency check. It also means it'll become much easier to work with
multiple branches simultaneously where each branch needs its own Xcode.
Make our local .NET the default .NET (in the root's global.json), and then if
a directory wants to use the system .NET, then that directory would have to
opt-in (using its own global.json).
This way we don't have to copy global.json/NuGet.config files around to run
tests with the correct .NET setup.
Add a default MAUI and a default Xamarin.Forms project as size comparison apps
(both created from templates).
This reveals that a MAUI app is ~30% bigger than a Xamarin.Forms app (42MB vs
31MB). Notably there's 21% *less* managed code, but 33% *more* native code.
https://gist.github.com/rolfbjarne/d294171969226f7511d90a817b9ac328
* Add support for the SupportedOSPlatformVersion MSBuild property, and write
it to the Info.plist for the corresponding minimum OS version.
* If there are any minimum OS version in the Info.plist, we'll now show an
error if it doesn't match SupportedOSPlatformVersion.
This unfortunately means that if there's any minimum OS version in any
Info.plist, then that will most likely have to be moved to the
SupportedOSPlatformVersion property (or removed entirely if that's the right
choice), since it's unlikely to match the default value for
SupportedOSPlatformVersion. However, this was deemed to be the best option for
the future (it's a one-time pain during migration).
Also add new tests, update existing tests, and update the templates.
Fixes https://github.com/xamarin/xamarin-macios/issues/12336.
Using the AOT LLVM-backend is recommended for release and should be used
when comparing sizes.
Also add some basic instruction to ease comparing `oldnet` and `dotnet`
app bundles since IL stripping is not yet available to dotnet builds (and
without considering this the _real_ numbers are a bit off)
Rolf Bjarne Kvinge
Sebastien Pouliot