TEMP: placeholder mapping from registry identity to location

FIXME: temporary change to get registry resolution working

Author: mattt

Sources/PackageLoading/IdentityResolver.swift

@@ -27,7 +27,16 @@ public struct DefaultIdentityResolver: IdentityResolver {
 
     public func resolveIdentity(for location: String) -> PackageIdentity {
         let location = self.resolveLocation(from: location)
-        return PackageIdentity(url: location)
+
+        let components = location.split(separator: "/")
+        guard components.count == 2,
+              let scope = components.first,
+              let name = components.last
+        else {
+            return PackageIdentity(url: location)
+        }
+
+        return PackageIdentity.plain("\(scope).\(name)")
     }
 
     public func resolveIdentity(for path: AbsolutePath) -> PackageIdentity {

Sources/PackageModel/Manifest/PackageDependencyDescription.swift

@@ -120,9 +120,8 @@ public enum PackageDependency: Equatable {
             return data.path.pathString
         case .sourceControl(let data):
             return data.location
-        case .registry:
-            // FIXME
-            fatalError("registry based dependencies not implemented yet")
+        case .registry(let data):
+            return data.identity.description.replacingOccurrences(of: ".", with: "/") // FIXME: formalize mapping from identity to location
         }
     }