feat: add Swift Package Manager support for iOS

.github/workflows/ci.yaml

@@ -10,18 +10,28 @@ jobs:
   build:
     runs-on: macos-latest
 
+    strategy:
+      matrix:
+        include:
+          - flutter-version: '3.27.3'
+            build: cocoapods
+          - flutter-version: '3.44.0'
+            build: android
+          - flutter-version: '3.44.0'
+            build: spm
+
     env:
       FLUTTER_CHANNEL: stable
-      FLUTTER_VERSION: 3.27.3
 
     steps:
     - name: Checkout code
       uses: actions/checkout@v2
 
-    - name: fetch submodules
+    - name: Fetch submodules
       run: git submodule update --init --recursive
 
     - name: Set up JDK 17
+      if: matrix.build != 'spm'
       uses: actions/setup-java@v3
       with:
         java-version: 17
@@ -30,30 +40,55 @@ jobs:
     - name: Set up Flutter
       uses: subosito/flutter-action@v2
       with:
-        flutter-version: ${{ env.FLUTTER_VERSION }}
+        flutter-version: ${{ matrix.flutter-version }}
         channel: ${{ env.FLUTTER_CHANNEL }}
 
-    - name: Install dependencies
-      working-directory: example
-      run: flutter pub get
-
-    - run: echo API_KEY=${{ secrets.TEST_API_KEY }} > example/.env
-    - name: Build Android
-      working-directory: example
-      run: flutter build apk --release
-
-    - name: Copy iOS
+    - name: Copy Confidence sources for CocoaPods
+      if: matrix.build == 'cocoapods'
       working-directory: ios/Classes
       run: cp -r confidence-sdk/Sources/Confidence .
 
     - name: Remove the submodule
+      if: matrix.build == 'cocoapods'
       working-directory: ios/Classes
       run: rm -rf confidence-sdk
 
     - name: Remove git submodule
+      if: matrix.build == 'cocoapods'
       working-directory: ios/Classes
       run: git rm confidence-sdk
 
-    - name: Build iOS
+    - name: Install dependencies
+      if: matrix.build != 'spm'
+      working-directory: example
+      run: flutter pub get
+
+    - run: echo API_KEY=${{ secrets.TEST_API_KEY }} > example/.env
+      if: matrix.build != 'spm'
+
+    - name: Build Android
+      if: matrix.build != 'spm'
+      working-directory: example
+      run: flutter build apk --release
+
+    - name: Build iOS (CocoaPods)
+      if: matrix.build == 'cocoapods'
       working-directory: example
       run: flutter build ios --release --no-codesign
+
+    - name: Copy Confidence sources for SPM
+      if: matrix.build == 'spm'
+      run: cp -r ios/Classes/confidence-sdk/Sources/Confidence ios/confidence_flutter_sdk/Sources/confidence_flutter_sdk/
+
+    - name: Prepare plugin without git context
+      if: matrix.build == 'spm'
+      run: |
+        mkdir -p /tmp/confidence_flutter_sdk
+        rsync -a --exclude='.git' --exclude='ios/Classes/confidence-sdk' . /tmp/confidence_flutter_sdk/
+
+    - run: echo API_KEY=dummy > /tmp/confidence_flutter_sdk/example/.env
+      if: matrix.build == 'spm'
+    - name: Build iOS (SPM)
+      if: matrix.build == 'spm'
+      working-directory: /tmp/confidence_flutter_sdk/example
+      run: flutter build ios --no-codesign

ios/confidence_flutter_sdk.podspec

@@ -5,19 +5,16 @@
 Pod::Spec.new do |s|
   s.name             = 'confidence_flutter_sdk'
   s.version          = '0.0.1'
-  s.summary          = 'A new Flutter plugin project.'
-  s.description      = <<-DESC
-A new Flutter plugin project.
-                       DESC
-  s.homepage         = 'http://example.com'
+  s.summary          = 'Flutter plugin for the Confidence SDK.'
+  s.description      = 'Flutter plugin for the Confidence SDK.'
+  s.homepage         = 'https://confidence.spotify.com'
   s.license          = { :file => '../LICENSE' }
-  s.author           = { 'Your Company' => 'email@example.com' }
+  s.author           = { 'Confidence' => 'confidence@spotify.com' }
   s.source           = { :path => '.' }
-  s.source_files = 'Classes/**/*'
+  s.source_files = 'confidence_flutter_sdk/Sources/confidence_flutter_sdk/**/*.swift', 'Classes/Confidence/**/*.swift'
   s.dependency 'Flutter'
   s.platform = :ios, '14.0'
 
-  # Flutter.framework does not contain a i386 slice.
   s.pod_target_xcconfig = { 'DEFINES_MODULE' => 'YES', 'EXCLUDED_ARCHS[sdk=iphonesimulator*]' => 'i386' }
   s.swift_version = '5.0'
 end

ios/confidence_flutter_sdk/.gitignore

@@ -0,0 +1,2 @@
+.build/
+Package.resolved

ios/confidence_flutter_sdk/Package.swift

@@ -0,0 +1,24 @@
+// swift-tools-version: 5.9
+
+import PackageDescription
+
+let package = Package(
+    name: "confidence_flutter_sdk",
+    platforms: [
+        .iOS("14.0"),
+    ],
+    products: [
+        .library(name: "confidence-flutter-sdk", targets: ["confidence_flutter_sdk"]),
+    ],
+    dependencies: [
+        .package(name: "FlutterFramework", path: "../FlutterFramework"),
+    ],
+    targets: [
+        .target(
+            name: "confidence_flutter_sdk",
+            dependencies: [
+                .product(name: "FlutterFramework", package: "FlutterFramework"),
+            ]
+        ),
+    ]
+)