Vastly simplify artifact extraction

model/src/main/kotlin/org/nixos/gradle2nix/model/DependencySet.kt

@@ -1,7 +1,6 @@
 package org.nixos.gradle2nix.model
 
 import java.io.Serializable
-import org.nixos.gradle2nix.model.impl.DefaultRepository
 
 interface DependencySet : Serializable {
     val dependencies: List<ResolvedDependency>

model/src/main/kotlin/org/nixos/gradle2nix/model/Repository.kt

@@ -1,16 +0,0 @@
-package org.nixos.gradle2nix.model
-
-import java.io.Serializable
-
-interface Repository : Serializable {
-    val id: String
-    val type: Type
-    val metadataSources: List<String>
-    val metadataResources: List<String>
-    val artifactResources: List<String>
-
-    enum class Type {
-        MAVEN,
-        IVY,
-    }
-}

model/src/main/kotlin/org/nixos/gradle2nix/model/ResolvedArtifact.kt

@@ -4,6 +4,6 @@ import java.io.Serializable
 
 interface ResolvedArtifact : Serializable {
     val name: String
-    val filename: String
-    val urls: List<String>
+    val hash: String
+    val url: String
 }

model/src/main/kotlin/org/nixos/gradle2nix/model/impl/DefaultRepository.kt

@@ -1,11 +0,0 @@
-package org.nixos.gradle2nix.model.impl
-
-import org.nixos.gradle2nix.model.Repository
-
-data class DefaultRepository(
-    override val id: String,
-    override val type: Repository.Type,
-    override val metadataSources: List<String>,
-    override val metadataResources: List<String>,
-    override val artifactResources: List<String>,
-) : Repository

model/src/main/kotlin/org/nixos/gradle2nix/model/impl/DefaultResolvedArtifact.kt

@@ -4,6 +4,6 @@ import org.nixos.gradle2nix.model.ResolvedArtifact
 
 data class DefaultResolvedArtifact(
     override val name: String,
-    override val filename: String,
-    override val urls: List<String>
+    override val hash: String,
+    override val url: String,
 ) : ResolvedArtifact