add decodable struct for Package.resolved version 2

Author: 417-72KI

Sources/DangerDependenciesResolver/Package.swift

@@ -38,3 +38,42 @@ extension Package.Pinned {
         let version: Version
     }
 }
+
+// MARK: swift-tools-version >= 5.6
+extension Package {
+    struct PinnedV2: Decodable, Equatable {
+        let name: String
+        let url: URL
+        let state: State
+    }
+}
+
+extension Package.PinnedV2 {
+    enum CodingKeys: String, CodingKey {
+        case name = "identity"
+        case url = "location"
+        case state
+    }
+}
+
+extension Package.PinnedV2 {
+    struct State: Decodable, Equatable {
+        let version: Version
+    }
+}
+
+extension Package.PinnedV2 {
+    func convertToV1() -> Package.Pinned {
+        .init(
+            name: name,
+            url: url,
+            state: .init(version: state.version)
+        )
+    }
+}
+
+extension Sequence where Element == Package.PinnedV2 {
+    func convertToV1() -> [Package.Pinned] {
+        map { $0.convertToV1() }
+    }
+}

Sources/DangerDependenciesResolver/PackageDataProvider.swift

@@ -63,7 +63,7 @@ struct PackageDataProvider: PackageDataProviding {
                 /// swift-tools-version <= 5.5
                 case v1(object: Object)
                 /// swift-tools-version >= 5.6
-                case v2(pins: [Package.Pinned])
+                case v2(pins: [Package.PinnedV2])
             }
             let version: Version
 
@@ -80,7 +80,9 @@ struct PackageDataProvider: PackageDataProviding {
                 case 1:
                     let object = try container.decode(Object.self, forKey: .object)
                     self.version = .v1(object: object)
-                // case 2:
+                 case 2:
+                    let pins = try container.decode([Package.PinnedV2].self, forKey: .pins)
+                    self.version = .v2(pins: pins)
                 default:
                     throw DecodingError.valueNotFound(Int.self, .init(codingPath: [CodingKeys.version], debugDescription: "Invalid value: \(version)"))
                 }
@@ -94,7 +96,7 @@ struct PackageDataProvider: PackageDataProviding {
         case let .v1(object):
             return object.pins
         case let .v2(pins):
-            return pins
+            return pins.convertToV1()
         }
     }