feat!: Add support for live update differentials (#83)

BREAKING CHANGE: This _requires_ an update to LiveUpdates 0.5.0

IonicPortals.podspec

@@ -10,6 +10,6 @@ Pod::Spec.new do |s|
   s.source = { git: 'https://github.com/ionic-team/ionic-portals-ios.git', tag: s.version.to_s }
   s.source_files = 'Sources/IonicPortals/*.swift'
   s.dependency 'Capacitor', '~> 5.0'
-  s.dependency 'IonicLiveUpdates', '>= 0.1.2', '< 0.5.0'
-  s.swift_version = '5.4'
+  s.dependency 'IonicLiveUpdates', '>= 0.5.0', '< 0.6.0'
+  s.swift_version = '5.7'
 end

Package.resolved

@@ -15,8 +15,8 @@
         "repositoryURL": "https://github.com/ionic-team/ionic-live-updates-releases",
         "state": {
           "branch": null,
-          "revision": "fe3474212b612bdbb0496f81db854530b39ba0d5",
-          "version": "0.4.0"
+          "revision": "1b04d7e2afe633302dd4f4c4560eb3cd8d3719f9",
+          "version": "0.5.0"
         }
       }
     ]

Package.swift

@@ -13,7 +13,7 @@ let package = Package(
     ],
     dependencies: [
         .package(url: "https://github.com/ionic-team/capacitor-swift-pm", .upToNextMajor(from: "5.0.0")),
-        .package(url: "https://github.com/ionic-team/ionic-live-updates-releases", "0.1.2"..<"0.5.0"),
+        .package(url: "https://github.com/ionic-team/ionic-live-updates-releases", "0.5.0"..<"0.6.0"),
     ],
     targets: [
         .target(

Sources/IonicPortals/Portal.swift

@@ -35,7 +35,10 @@ public struct Portal {
     public var liveUpdateConfig: LiveUpdate? = nil {
         didSet {
             guard let liveUpdateConfig = liveUpdateConfig else { return }
-            try? liveUpdateManager.add(liveUpdateConfig)
+            try? liveUpdateManager.add(
+                liveUpdateConfig,
+                existingCacheUrl: bundle.url(forResource: startDir, withExtension: nil)
+            )
         }
     }
 
@@ -79,7 +82,10 @@ public struct Portal {
         self.liveUpdateManager = liveUpdateManager
         self.liveUpdateConfig = liveUpdateConfig
         if let liveUpdateConfig = liveUpdateConfig {
-            try? liveUpdateManager.add(liveUpdateConfig)
+            try? liveUpdateManager.add(
+                liveUpdateConfig,
+                existingCacheUrl: bundle.url(forResource: self.startDir, withExtension: nil)
+            )
         }
         self.assetMaps = assetMaps
     }

Sources/IonicPortals/PortalUIView.swift

@@ -36,7 +36,7 @@ public class PortalUIView: UIView {
     func initView () {
         if PortalsRegistrationManager.shared.isRegistered {
             if let liveUpdateConfig = portal.liveUpdateConfig {
-                self.liveUpdatePath = try? portal.liveUpdateManager.latestAppDirectory(for: liveUpdateConfig.appId)
+                self.liveUpdatePath = portal.liveUpdateManager.latestAppDirectory(for: liveUpdateConfig.appId)
             }
 
             addPinnedSubview(webView)
@@ -56,7 +56,7 @@ public class PortalUIView: UIView {
     /// Reloads the underlying `WKWebView`
     @objc public func reload() {
         if let liveUpdate = portal.liveUpdateConfig,
-           let latestAppPath = try? portal.liveUpdateManager.latestAppDirectory(for: liveUpdate.appId),
+           let latestAppPath = portal.liveUpdateManager.latestAppDirectory(for: liveUpdate.appId),
            liveUpdatePath == nil || liveUpdatePath?.path != latestAppPath.path {
             liveUpdatePath = latestAppPath
             return webView.setServerBasePath(path: latestAppPath.path)