Use supportedDestinations to create a multiplatform target (#1202)

* Use `supportedDestinations` to create a multiplatform target

* Add `.gitignore`

Author: carson-katri

lib/mix/tasks/install.ex

@@ -43,7 +43,7 @@ defmodule Mix.Tasks.Lvn.SwiftUI.Install do
       targets: %{
         type: :multiselect,
         label: "Select any number of deployment targets for your app.",
-        options: ["iOS", "macOS", "watchOS"],
+        options: ["iOS", "macOS", "watchOS", "tvOS (Experimental)"],
         default: ["iOS"],
         default_label: "1"
       }
@@ -136,14 +136,16 @@ defmodule Mix.Tasks.Lvn.SwiftUI.Install do
   end
 
   defp run_xcodegen(%{app_namespace: app_namespace, native_path: native_path}, %{targets: targets}) do
-    lvn_ios_include_path = if "iOS" in targets, do: "project_ios.yml", else: "skip_spec.yml"
-    lvn_macos_include_path = if "macOS" in targets, do: "project_macos.yml", else: "skip_spec.yml"
+    lvn_ios = if "iOS" in targets, do: "iOS", else: ""
+    lvn_macos = if "macOS" in targets, do: "macOS", else: ""
+    lvn_tvos = if "tvOS (Experimental)" in targets, do: "tvOS", else: ""
     lvn_watchos_include_path = if "watchOS" in targets, do: "project_watchos.yml", else: "skip_spec.yml"
     xcodegen_env = [
       {"LVN_APP_NAME", app_namespace},
-      {"LVN_BUNDLE_IDENTIFIER", "com.myorg.#{app_namespace}"},
-      {"LVN_IOS_INCLUDE_PATH", lvn_ios_include_path},
-      {"LVN_MACOS_INCLUDE_PATH", lvn_macos_include_path},
+      {"LVN_BUNDLE_IDENTIFIER", "com.example.#{app_namespace}"},
+      {"LVN_IOS", lvn_ios},
+      {"LVN_MACOS", lvn_macos},
+      {"LVN_TVOS", lvn_tvos},
       {"LVN_WATCHOS_INCLUDE_PATH", lvn_watchos_include_path}
     ]
     native_project_path = Path.join(native_path, "swiftui")
@@ -160,7 +162,7 @@ defmodule Mix.Tasks.Lvn.SwiftUI.Install do
   defp remove_xcodegen_files(%{native_path: native_path}) do
     client_path = Path.join(native_path, "swiftui")
 
-    ["base_spec.yml", "project_ios.yml", "project_macos.yml", "project_watchos.yml", "project.yml", "skip_spec.yml"]
+    ["base_spec.yml", "project_watchos.yml", "project.yml", "skip_spec.yml"]
     |> Enum.map(&(Path.join(client_path, &1)))
     |> Enum.map(&File.rm/1)
   end

priv/xcodegen/.gitignore

@@ -0,0 +1,6 @@
+## User settings
+xcuserdata/
+
+## Xcode 8 and earlier
+*.xcscmblueprint
+*.xccheckout

priv/xcodegen/Sources/TemplateApp/ContentView.swift

@@ -8,6 +8,9 @@ import LiveViewNative
 
 struct ContentView: View {
     var body: some View {
-        LiveView(.automatic(URL(string: "https://%LVN_PREFERRED_PROD_URL%%LVN_PREFERRED_ROUTE%")!))
+        LiveView(.automatic(
+            development: .localhost(path: "%LVN_PREFERRED_ROUTE%"),
+            production: .custom(URL(string: "https://%LVN_PREFERRED_PROD_URL%%LVN_PREFERRED_ROUTE%")!)
+        ))
     }
 }

priv/xcodegen/project.yml

@@ -2,9 +2,18 @@ name: ${LVN_APP_NAME}
 include:
   - path: base_spec.yml
     relativePaths: false
-  - path: ${LVN_IOS_INCLUDE_PATH}
-    relativePaths: false
-  - path: ${LVN_MACOS_INCLUDE_PATH}
-    relativePaths: false
   - path: ${LVN_WATCHOS_INCLUDE_PATH}
     relativePaths: false
+targets:
+  ${LVN_APP_NAME}:
+    type: application
+    supportedDestinations:
+      - ${LVN_IOS}
+      - ${LVN_MACOS}
+      - ${LVN_TVOS}
+    sources:
+      - Sources/${LVN_APP_NAME}
+    settings:
+      PRODUCT_BUNDLE_IDENTIFIER: ${LVN_BUNDLE_IDENTIFIER}
+    dependencies:
+      - package: LiveViewNative

priv/xcodegen/project_ios.yml

@@ -1,5 +1,5 @@
 targets:
-  watchOS:
+  "${LVN_APP_NAME} Watch App":
     type: application
     platform: watchOS
     sources: