This change modifies the process for generating and integrating the Meshtastic protobufs into the client application.
* The generated Swift code is now in a local SPM package `MeshtasticProtobufs`
* An Xcode Workspace file `Meshtastic.xcworkspace` was created to more easily manage the new build targets.
* The code generation script for the protos was modified to generate the Swift code into the new location.
* The README.md was updated to reflect these changes.
NOTE: After merging this PR, do not open the project file `Meshtastic.xcodeproj`. You must use the workspace `Meshtastic.xcworkspace`
Extracting out the generated protobuf code into its own library enables several opportunities for the project. This is just a first step, but with some more modularization, a standalone Apple Watch app or other targets starts to become a little bit more achievable to implement.
After extracting the protobufs into a Swift package, I validate these changes by building and running the Meshtastic app to an iPhone 15 Pro Max, and tried changing some settings on a local node. I then messaged back and forth using two local nodes connected to two different iOS devices.
After this change, a developer can now clone the project and run without the build failing due to lint errors! 😃
* I ran `swiftlint --fix` to resolve many auto-correctable issues (mostly whitespace)
* Excluded the `Meshtastic/Protobufs` directory from lint, since that code is automatically generated.
* Converted some single letter method parameters to lowercase.
* Converted several instances `force_cast` to instead use `guard` or `if let` to unwrap optional values. During this change, some of the SwiftUI views became "too complex to be solved in a reasonable time", so I broke up the views into distinct sub-expressions.
I was able to build and run the app on an iOS simulator.
It can be difficult to tell when the app is in progress of downloading map tiles
for offline use, especially when hitting a slow server like USGS or on a slow
network. Adds a download circle icon to indicate download progress to the
user. Also helpfully informs when a zoom level is outside the range.
