Merge pull request #35 from tadfisher/s3

Support repositories hosted in AWS S3
2026-01-11 15:30:38 -05:00 · 2021-03-10 17:05:09 -08:00
parent 13958d35bf 7f7d6a888b
commit fafe5b7e0b
49 changed files with 6841 additions and 1581 deletions
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -4,12 +4,10 @@ plugins {
    kotlin("jvm")
    kotlin("kapt")
    application
-    idea
 }

 dependencies {
    implementation(project(":model"))
-    implementation(kotlin("stdlib-jdk8"))
    implementation(kotlin("reflect"))
    implementation("org.gradle:gradle-tooling-api:${gradle.gradleVersion}")
    implementation("com.github.ajalt:clikt:latest.release")
@@ -31,7 +29,7 @@ application {
    applicationName = "gradle2nix"
    applicationDefaultJvmArgs += "-Dorg.nixos.gradle2nix.share=@APP_HOME@/share"
    applicationDistribution
-        .from(tasks.getByPath(":plugin:shadowJar"))
+        .from(tasks.getByPath(":plugin:shadowJar"), "$rootDir/gradle-env.nix")
        .into("share")
        .rename("plugin.*\\.jar", "plugin.jar")
 }
@@ -75,12 +73,7 @@ tasks {
    withType<KotlinCompile> {
        kotlinOptions {
            jvmTarget = "1.8"
-        }
-    }
-
-    idea {
-        module {
-
+            freeCompilerArgs = listOf("-Xopt-in=kotlin.RequiresOptIn")
        }
    }
 }
--- a/app/gradle.lockfile
+++ b/app/gradle.lockfile
@@ -6,17 +6,22 @@ com.github.ajalt:clikt:2.8.0=compileClasspath,runtimeClasspath,testCompileClassp
 com.squareup.moshi:moshi-adapters:1.11.0=compileClasspath,runtimeClasspath,testCompileClasspath,testRuntimeClasspath
 com.squareup.moshi:moshi-kotlin:1.11.0=compileClasspath,runtimeClasspath,testCompileClasspath,testRuntimeClasspath
 com.squareup.moshi:moshi:1.11.0=compileClasspath,runtimeClasspath,testCompileClasspath,testRuntimeClasspath
-com.squareup.okio:okio:2.9.0=compileClasspath,runtimeClasspath,testCompileClasspath,testRuntimeClasspath
+com.squareup.okio:okio:3.0.0-alpha.1=compileClasspath,runtimeClasspath,testCompileClasspath,testRuntimeClasspath
 io.github.classgraph:classgraph:4.8.37=testRuntimeClasspath
-io.strikt:strikt-core:0.28.1=testCompileClasspath,testRuntimeClasspath
+io.strikt:strikt-core:0.28.2=testCompileClasspath,testRuntimeClasspath
 net.swiftzer.semver:semver:1.1.1=runtimeClasspath,testRuntimeClasspath
 org.apiguardian:apiguardian-api:1.1.0=testRuntimeClasspath
-org.gradle:gradle-tooling-api:6.8-rc-1=compileClasspath,runtimeClasspath,testCompileClasspath,testRuntimeClasspath
-org.jetbrains.kotlin:kotlin-reflect:1.4.20=compileClasspath,runtimeClasspath,testCompileClasspath,testRuntimeClasspath
-org.jetbrains.kotlin:kotlin-stdlib-common:1.4.20=compileClasspath,runtimeClasspath,testCompileClasspath,testRuntimeClasspath
-org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.4.20=compileClasspath,runtimeClasspath,testCompileClasspath,testRuntimeClasspath
-org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.4.20=compileClasspath,runtimeClasspath,testCompileClasspath,testRuntimeClasspath
-org.jetbrains.kotlin:kotlin-stdlib:1.4.20=compileClasspath,runtimeClasspath,testCompileClasspath,testRuntimeClasspath
+org.gradle:gradle-tooling-api:6.8.1=compileClasspath,runtimeClasspath,testCompileClasspath,testRuntimeClasspath
+org.jetbrains.kotlin:kotlin-reflect:1.4.20=compileClasspath,runtimeClasspath,testCompileClasspath
+org.jetbrains.kotlin:kotlin-reflect:1.4.21-2=testRuntimeClasspath
+org.jetbrains.kotlin:kotlin-stdlib-common:1.4.20=compileClasspath,runtimeClasspath
+org.jetbrains.kotlin:kotlin-stdlib-common:1.4.21-2=testCompileClasspath,testRuntimeClasspath
+org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.4.20=compileClasspath,runtimeClasspath
+org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.4.21-2=testCompileClasspath,testRuntimeClasspath
+org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.4.20=compileClasspath,runtimeClasspath
+org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.4.21-2=testCompileClasspath,testRuntimeClasspath
+org.jetbrains.kotlin:kotlin-stdlib:1.4.20=compileClasspath,runtimeClasspath
+org.jetbrains.kotlin:kotlin-stdlib:1.4.21-2=testCompileClasspath,testRuntimeClasspath
 org.jetbrains.kotlinx:kotlinx-coroutines-core-common:1.3.3=testRuntimeClasspath
 org.jetbrains.kotlinx:kotlinx-coroutines-core-jvm:1.4.2=testRuntimeClasspath
 org.jetbrains.kotlinx:kotlinx-coroutines-core:1.4.2=testRuntimeClasspath
@@ -27,7 +32,7 @@ org.junit:junit-bom:5.6.0=testRuntimeClasspath
 org.opentest4j:opentest4j:1.2.0=testCompileClasspath,testRuntimeClasspath
 org.slf4j:slf4j-api:2.0.0-alpha1=compileClasspath,runtimeClasspath,testCompileClasspath,testRuntimeClasspath
 org.slf4j:slf4j-simple:2.0.0-alpha1=runtimeClasspath,testRuntimeClasspath
-org.spekframework.spek2:spek-dsl-jvm:2.0.14=testCompileClasspath,testRuntimeClasspath
-org.spekframework.spek2:spek-runner-junit5:2.0.14=testRuntimeClasspath
-org.spekframework.spek2:spek-runtime-jvm:2.0.14=testRuntimeClasspath
+org.spekframework.spek2:spek-dsl-jvm:2.0.15=testCompileClasspath,testRuntimeClasspath
+org.spekframework.spek2:spek-runner-junit5:2.0.15=testRuntimeClasspath
+org.spekframework.spek2:spek-runtime-jvm:2.0.15=testRuntimeClasspath
 empty=
--- a/app/src/dist/share/gradle-env.nix
+++ b/app/src/dist/share/gradle-env.nix
@@ -1,331 +0,0 @@
-# This file is generated by gradle2nix.
-#
-# Example usage (e.g. in default.nix):
-#
-#     with (import <nixpkgs> {});
-#     let
-#       buildGradle = callPackage ./gradle-env.nix {};
-#     in
-#       buildGradle {
-#         envSpec = ./gradle-env.json;
-#
-#         src = ./.;
-#
-#         gradleFlags = [ "installDist" ];
-#
-#         installPhase = ''
-#           mkdir -p $out
-#           cp -r app/build/install/myproject $out
-#         '';
-#       }
-
-{ stdenv, buildEnv, fetchurl, gradleGen, writeText, writeTextDir }:
-
-{
-# Path to the environment spec generated by gradle2nix (e.g. gradle-env.json).
-  envSpec
-, pname ? null
-, version ? null
-, enableParallelBuilding ? true
-# Arguments to Gradle used to build the project in buildPhase.
-, gradleFlags ? [ "build" ]
-# Gradle package to use instead of the one generated by gradle2nix.
-, gradlePackage ? null
-# Enable debugging for the Gradle build; this will cause Gradle to run a debug server
-# and wait for a JVM debugging client to attach.
-, enableDebug ? false
-# Additional code to run in the Gradle init script (init.gradle).
-, extraInit ? ""
-# Override the default JDK used to run Gradle itself.
-, buildJdk ? null
-, ... } @ args:
-
-let
-  inherit (builtins)
-    attrValues concatStringsSep filter fromJSON match replaceStrings sort;
-
-  inherit (stdenv.lib)
-    assertMsg concatMapStringsSep groupBy' hasSuffix last mapAttrs
-    mapAttrsToList optionalString readFile removeSuffix unique versionAtLeast
-    versionOlder;
-
-  mkDep = depSpec: stdenv.mkDerivation {
-    inherit (depSpec) name;
-
-    src = fetchurl {
-      inherit (depSpec) urls sha256;
-    };
-
-    phases = "installPhase";
-
-    installPhase = ''
-      mkdir -p $out/${depSpec.path}
-      ln -s $src $out/${depSpec.path}/${depSpec.name}
-    '';
-  };
-
-  mkModuleMetadata = deps:
-    let
-      ids = filter
-        (id: id.type == "pom")
-        (map (dep: dep.id) deps);
-
-      modules = groupBy'
-        (meta: id:
-          let
-            isNewer = versionOlder meta.latest id.version;
-            isNewerRelease =
-              !(hasSuffix "-SNAPSHOT" id.version) &&
-              versionOlder meta.release id.version;
-          in {
-            groupId = id.group;
-            artifactId = id.name;
-            latest = if isNewer then id.version else meta.latest;
-            release = if isNewerRelease then id.version else meta.release;
-            versions = meta.versions ++ [id.version];
-          }
-        )
-        {
-          latest = "";
-          release = "";
-          versions = [];
-        }
-        (id: "${replaceStrings ["."] ["/"] id.group}/${id.name}/maven-metadata.xml")
-        ids;
-
-    in
-      attrValues (mapAttrs (path: meta:
-        let
-          versions' = sort versionOlder (unique meta.versions);
-        in
-          with meta; writeTextDir path ''
-            <?xml version="1.0" encoding="UTF-8"?>
-            <metadata modelVersion="1.1">
-              <groupId>${groupId}</groupId>
-              <artifactId>${artifactId}</artifactId>
-              <versioning>
-                ${optionalString (latest != "") "<latest>${latest}</latest>"}
-                ${optionalString (release != "") "<release>${release}</release>"}
-                <versions>
-                  ${concatMapStringsSep "\n    " (v: "<version>${v}</version>") versions'}
-                </versions>
-              </versioning>
-            </metadata>
-          ''
-      ) modules);
-
-  mkSnapshotMetadata = deps:
-    let
-      snapshotDeps = filter (dep: dep ? build && dep ? timestamp) deps;
-
-      modules = groupBy'
-        (meta: dep:
-          let
-            id = dep.id;
-            isNewer = dep.build > meta.buildNumber;
-            # Timestamp values can be bogus, e.g. jitpack.io
-            updated = if (match "[0-9]{8}\.[0-9]{6}" dep.timestamp) != null
-                      then replaceStrings ["."] [""] dep.timestamp
-                      else "";
-          in {
-            groupId = id.group;
-            artifactId = id.name;
-            version = id.version;
-            timestamp = if isNewer then dep.timestamp else meta.timestamp;
-            buildNumber = if isNewer then dep.build else meta.buildNumber;
-            lastUpdated = if isNewer then updated else meta.lastUpdated;
-            versions = meta.versions or [] ++ [{
-              classifier = id.classifier or "";
-              extension = id.extension;
-              value = "${removeSuffix "-SNAPSHOT" id.version}-${dep.timestamp}-${toString dep.build}";
-              updated = updated;
-            }];
-          }
-        )
-        {
-          timestamp = "";
-          buildNumber = -1;
-          lastUpdated = "";
-        }
-        (dep: "${replaceStrings ["."] ["/"] dep.id.group}/${dep.id.name}/${dep.id.version}/maven-metadata.xml")
-        snapshotDeps;
-
-      mkSnapshotVersion = version: ''
-        <snapshotVersion>
-          ${optionalString (version.classifier != "") "<classifier>${version.classifier}</classifier>"}
-          <extension>${version.extension}</extension>
-          <value>${version.value}</value>
-          ${optionalString (version.updated != "") "<updated>${version.updated}</updated>"}
-        </snapshotVersion>
-      '';
-
-    in
-      attrValues (mapAttrs (path: meta:
-        with meta; writeTextDir path ''
-          <?xml version="1.0" encoding="UTF-8"?>
-          <metadata modelVersion="1.1">
-            <groupId>${groupId}</groupId>
-            <artifactId>${artifactId}</artifactId>
-            <version>${version}</version>
-            <versioning>
-              <snapshot>
-                ${optionalString (timestamp != "") "<timestamp>${timestamp}</timestamp>"}
-                ${optionalString (buildNumber != -1) "<buildNumber>${toString buildNumber}</buildNumber>"}
-              </snapshot>
-              ${optionalString (lastUpdated != "") "<lastUpdated>${lastUpdated}</lastUpdated>"}
-              <snapshotVersions>
-                ${concatMapStringsSep "\n    " mkSnapshotVersion versions}
-              </snapshotVersions>
-            </versioning>
-          </metadata>
-        ''
-      ) modules);
-
-  mkRepo = project: type: deps: buildEnv {
-    name = "${project}-gradle-${type}-env";
-    paths = map mkDep deps ++ mkModuleMetadata deps ++ mkSnapshotMetadata deps;
-  };
-
-  mkInitScript = projectSpec: gradle:
-    let
-      repos = mapAttrs (mkRepo projectSpec.name) projectSpec.dependencies;
-      hasDependencies = mapAttrs (type: deps: deps != []) projectSpec.dependencies;
-    in
-      assert (assertMsg (hasDependencies.settings -> versionAtLeast gradle.version "6.0") ''
-        Project `${projectSpec.name}' has settings script dependencies, such as settings
-        plugins, which are not supported by gradle2nix for Gradle versions prior to 6.0.
-
-        Potential remedies:
-        - Pass `--gradle-version=<version>' to the gradle2nix command.
-        - Patch the `settings.gradle[.kts]' file to remove script dependencies.
-      '');
-
-      writeText "init.gradle" ''
-        static def offlineRepo(RepositoryHandler repositories, String env, String path) {
-            repositories.clear()
-            repositories.maven {
-                name "Nix''${env.capitalize()}MavenOffline"
-                url path
-                metadataSources {
-                    it.gradleMetadata()
-                    it.mavenPom()
-                    it.artifact()
-                }
-            }
-            repositories.ivy {
-                name "Nix''${env.capitalize()}IvyOffline"
-                url path
-                layout "maven"
-                metadataSources {
-                    it.gradleMetadata()
-                    it.ivyDescriptor()
-                    it.artifact()
-                }
-            }
-        }
-
-        ${optionalString (hasDependencies.settings && (versionAtLeast gradle.version "6.0")) ''
-          gradle.beforeSettings {
-              offlineRepo(it.buildscript.repositories, "settings", "${repos.settings}")
-          }
-        ''}
-
-        ${optionalString (hasDependencies.plugin) ''
-          gradle.settingsEvaluated {
-              offlineRepo(it.pluginManagement.repositories, "plugin", "${repos.plugin}")
-          }
-        ''}
-
-        ${optionalString (hasDependencies.buildscript) ''
-          gradle.projectsLoaded {
-              allprojects {
-                  buildscript {
-                      offlineRepo(repositories, "buildscript", "${repos.buildscript}")
-                  }
-              }
-          }
-        ''}
-
-        ${optionalString (hasDependencies.project) ''
-          gradle.projectsLoaded {
-              allprojects {
-                  offlineRepo(repositories, "project", "${repos.project}")
-              }
-          }
-        ''}
-
-        ${extraInit}
-      '';
-
-  mkGradle = gradleSpec:
-    gradleGen.gradleGen {
-      inherit (gradleSpec) nativeVersion;
-
-      name = "gradle-${gradleSpec.version}-${gradleSpec.type}";
-
-      src = fetchurl {
-        inherit (gradleSpec) url sha256;
-      };
-    } // {
-      inherit (gradleSpec) version;
-    };
-
-  mkProjectEnv = projectSpec: rec {
-    inherit (projectSpec) name path version;
-    gradle = args.gradlePackage or mkGradle projectSpec.gradle;
-    initScript = mkInitScript projectSpec gradle;
-  };
-
-  gradleEnv = mapAttrs
-    (_: p: mkProjectEnv p)
-    (fromJSON (readFile envSpec));
-
-  projectEnv = gradleEnv."";
-  pname = args.pname or projectEnv.name;
-  version = args.version or projectEnv.version;
-
-  buildProject = env: flags: ''
-    gradle --offline --no-daemon --no-build-cache \
-      --info --full-stacktrace --warning-mode=all \
-      ${optionalString enableParallelBuilding "--parallel"} \
-      ${optionalString enableDebug "-Dorg.gradle.debug=true"} \
-      ${optionalString (buildJdk != null) "-Dorg.gradle.java.home=${buildJdk.home}"} \
-      --init-script ${env.initScript} \
-      ${optionalString (env.path != "") ''-p "${env.path}"''} \
-      ${concatStringsSep " " flags}
-  '';
-
-  buildIncludedProjects =
-    concatStringsSep "\n" (mapAttrsToList
-      (_: env: buildProject env [ "build" ])
-      (removeAttrs gradleEnv [ "" ]));
-
-  buildRootProject = buildProject projectEnv gradleFlags;
-
-in stdenv.mkDerivation (args // {
-
-  inherit pname version;
-
-  nativeBuildInputs = (args.nativeBuildInputs or []) ++ [ projectEnv.gradle ];
-
-  buildPhase = args.buildPhase or ''
-    runHook preBuild
-
-    (
-    set -eux
-
-    # use the init script here
-    TMPHOME=$(mktemp -d)
-    mkdir -p $TMPHOME/init.d
-    cp ${projectEnv.initScript} $TMPHOME/init.d
-
-    export "GRADLE_USER_HOME=$TMPHOME"
-    ${buildIncludedProjects}
-    ${buildRootProject}
-    )
-
-    runHook postBuild
-  '';
-
-  dontStrip = true;
-})
--- a/app/src/test/kotlin/org/nixos/gradle2nix/TestUtil.kt
+++ b/app/src/test/kotlin/org/nixos/gradle2nix/TestUtil.kt
@@ -12,6 +12,8 @@ import strikt.assertions.toPath
 import java.nio.file.Files
 import java.nio.file.Path
 import java.nio.file.Paths
+import kotlin.io.path.ExperimentalPathApi
+import kotlin.io.path.createTempDirectory

 private val moshi = Moshi.Builder().build()

@@ -36,6 +38,7 @@ class Fixture(val project: Path) {
    }
 }

+@OptIn(ExperimentalPathApi::class)
 fun Root.fixture(name: String) {
    val fixture by memoized(
        factory = {
@@ -43,7 +46,7 @@ fun Root.fixture(name: String) {
                "$name: No test fixture found"
            }
            val fixtureRoot = Paths.get(url)
-            val dest = createTempDir("gradle2nix").toPath()
+            val dest = createTempDirectory("gradle2nix")
            val src = checkNotNull(fixtureRoot.takeIf { Files.exists(it) }) {
                "$name: Test fixture not found: $fixtureRoot"
            }
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -1,20 +1,11 @@
 plugins {
    base
-    idea
-    kotlin("jvm") version embeddedKotlinVersion apply false
-    kotlin("kapt") version embeddedKotlinVersion apply false
-    id("com.github.johnrengelman.shadow") version "5.2.0" apply false
-    id("org.ajoberstar.stutter") version "0.5.1" apply false
 }

 group = "org.nixos.gradle2nix"
 version = property("VERSION") ?: "unspecified"

 subprojects {
-    repositories {
-        jcenter()
-        maven { url = uri("https://repo.gradle.org/gradle/libs-releases") }
-    }
    group = rootProject.group
    version = rootProject.version
 }
@@ -40,7 +31,7 @@ allprojects {
                    file("gradle.lockfile").delete()
                }
                doLast {
-                    configurations.matching { it.isCanBeResolved}.all { resolve() }
+                    configurations.matching { it.isCanBeResolved }.all { resolve() }
                }
            }
        }
@@ -49,7 +40,7 @@ allprojects {

 tasks {
    wrapper {
-        gradleVersion = "6.8-rc-1";
+        gradleVersion = "6.8.1"
        distributionType = Wrapper.DistributionType.ALL
    }
 }
--- a/fixtures/repositories/m2/io/micrometer/micrometer-bom/1.5.1/micrometer-bom-1.5.1.pom
+++ b/fixtures/repositories/m2/io/micrometer/micrometer-bom/1.5.1/micrometer-bom-1.5.1.pom
@@ -1,174 +1,176 @@
-cp <?xml version="1.0" encoding="UTF-8"?>
-<project xmlns="http://maven.apache.org/POM/4.0.0" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
-  <modelVersion>4.0.0</modelVersion>
-  <groupId>io.micrometer</groupId>
-  <artifactId>micrometer-bom</artifactId>
-  <version>1.5.1</version>
-  <packaging>pom</packaging>
-  <dependencyManagement>
-    <dependencies>
-      <dependency>
-        <groupId>io.micrometer</groupId>
-        <artifactId>micrometer-core</artifactId>
-        <version>1.5.1</version>
-      </dependency>
-      <dependency>
-        <groupId>io.micrometer</groupId>
-        <artifactId>micrometer-jersey2</artifactId>
-        <version>1.5.1</version>
-      </dependency>
-      <dependency>
-        <groupId>io.micrometer</groupId>
-        <artifactId>micrometer-registry-appoptics</artifactId>
-        <version>1.5.1</version>
-      </dependency>
-      <dependency>
-        <groupId>io.micrometer</groupId>
-        <artifactId>micrometer-registry-atlas</artifactId>
-        <version>1.5.1</version>
-      </dependency>
-      <dependency>
-        <groupId>io.micrometer</groupId>
-        <artifactId>micrometer-registry-azure-monitor</artifactId>
-        <version>1.5.1</version>
-      </dependency>
-      <dependency>
-        <groupId>io.micrometer</groupId>
-        <artifactId>micrometer-registry-cloudwatch</artifactId>
-        <version>1.5.1</version>
-      </dependency>
-      <dependency>
-        <groupId>io.micrometer</groupId>
-        <artifactId>micrometer-registry-cloudwatch2</artifactId>
-        <version>1.5.1</version>
-      </dependency>
-      <dependency>
-        <groupId>io.micrometer</groupId>
-        <artifactId>micrometer-registry-datadog</artifactId>
-        <version>1.5.1</version>
-      </dependency>
-      <dependency>
-        <groupId>io.micrometer</groupId>
-        <artifactId>micrometer-registry-dynatrace</artifactId>
-        <version>1.5.1</version>
-      </dependency>
-      <dependency>
-        <groupId>io.micrometer</groupId>
-        <artifactId>micrometer-registry-elastic</artifactId>
-        <version>1.5.1</version>
-      </dependency>
-      <dependency>
-        <groupId>io.micrometer</groupId>
-        <artifactId>micrometer-registry-ganglia</artifactId>
-        <version>1.5.1</version>
-      </dependency>
-      <dependency>
-        <groupId>io.micrometer</groupId>
-        <artifactId>micrometer-registry-graphite</artifactId>
-        <version>1.5.1</version>
-      </dependency>
-      <dependency>
-        <groupId>io.micrometer</groupId>
-        <artifactId>micrometer-registry-humio</artifactId>
-        <version>1.5.1</version>
-      </dependency>
-      <dependency>
-        <groupId>io.micrometer</groupId>
-        <artifactId>micrometer-registry-influx</artifactId>
-        <version>1.5.1</version>
-      </dependency>
-      <dependency>
-        <groupId>io.micrometer</groupId>
-        <artifactId>micrometer-registry-jmx</artifactId>
-        <version>1.5.1</version>
-      </dependency>
-      <dependency>
-        <groupId>io.micrometer</groupId>
-        <artifactId>micrometer-registry-kairos</artifactId>
-        <version>1.5.1</version>
-      </dependency>
-      <dependency>
-        <groupId>io.micrometer</groupId>
-        <artifactId>micrometer-registry-new-relic</artifactId>
-        <version>1.5.1</version>
-      </dependency>
-      <dependency>
-        <groupId>io.micrometer</groupId>
-        <artifactId>micrometer-registry-opentsdb</artifactId>
-        <version>1.5.1</version>
-      </dependency>
-      <dependency>
-        <groupId>io.micrometer</groupId>
-        <artifactId>micrometer-registry-prometheus</artifactId>
-        <version>1.5.1</version>
-      </dependency>
-      <dependency>
-        <groupId>io.micrometer</groupId>
-        <artifactId>micrometer-registry-signalfx</artifactId>
-        <version>1.5.1</version>
-      </dependency>
-      <dependency>
-        <groupId>io.micrometer</groupId>
-        <artifactId>micrometer-registry-stackdriver</artifactId>
-        <version>1.5.1</version>
-      </dependency>
-      <dependency>
-        <groupId>io.micrometer</groupId>
-        <artifactId>micrometer-registry-statsd</artifactId>
-        <version>1.5.1</version>
-      </dependency>
-      <dependency>
-        <groupId>io.micrometer</groupId>
-        <artifactId>micrometer-registry-wavefront</artifactId>
-        <version>1.5.1</version>
-      </dependency>
-      <dependency>
-        <groupId>io.micrometer</groupId>
-        <artifactId>micrometer-test</artifactId>
-        <version>1.5.1</version>
-      </dependency>
-    </dependencies>
-  </dependencyManagement>
-  <name>micrometer-bom</name>
-  <description>Micrometer BOM (Bill of Materials) for managing Micrometer artifact versions</description>
-  <licenses>
-    <license>
-      <name>The Apache Software License, Version 2.0</name>
-      <url>http://www.apache.org/licenses/LICENSE-2.0.txt</url>
-      <distribution>repo</distribution>
-    </license>
-  </licenses>
-  <properties>
-    <nebula_Manifest_Version>1.0</nebula_Manifest_Version>
-    <nebula_Implementation_Title>io.micrometer#micrometer-bom;1.5.1</nebula_Implementation_Title>
-    <nebula_Implementation_Version>1.5.1</nebula_Implementation_Version>
-    <nebula_Built_Status>release</nebula_Built_Status>
-    <nebula_Built_By>circleci</nebula_Built_By>
-    <nebula_Built_OS>Linux</nebula_Built_OS>
-    <nebula_Build_Date>2020-05-08_16:43:24</nebula_Build_Date>
-    <nebula_Gradle_Version>6.4</nebula_Gradle_Version>
-    <nebula_Module_Source>/micrometer-bom</nebula_Module_Source>
-    <nebula_Module_Origin>git@github.com:micrometer-metrics/micrometer.git</nebula_Module_Origin>
-    <nebula_Change>5984c10</nebula_Change>
-    <nebula_Branch>5984c10fc12b781652e27a9ea95c439f96e73cf8</nebula_Branch>
-    <nebula_Build_Host>82db0d896427</nebula_Build_Host>
-    <nebula_Build_Job>LOCAL</nebula_Build_Job>
-    <nebula_Build_Number>LOCAL</nebula_Build_Number>
-    <nebula_Build_Id>LOCAL</nebula_Build_Id>
-    <nebula_Created_By>14.0.1+7 (Oracle Corporation)</nebula_Created_By>
-    <nebula_Build_Java_Version>14.0.1</nebula_Build_Java_Version>
-    <nebula_Module_Owner>tludwig@vmware.com</nebula_Module_Owner>
-    <nebula_Module_Email>tludwig@vmware.com</nebula_Module_Email>
-  </properties>
-  <url>https://github.com/micrometer-metrics/micrometer</url>
-  <scm>
-    <url>git@github.com:micrometer-metrics/micrometer.git</url>
-  </scm>
-  <developers>
-    <developer>
-      <id>shakuzen</id>
-      <name>Tommy Ludwig</name>
-      <email>tludwig@vmware.com</email>
-    </developer>
-  </developers>
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>io.micrometer</groupId>
+    <artifactId>micrometer-bom</artifactId>
+    <version>1.5.1</version>
+    <packaging>pom</packaging>
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>io.micrometer</groupId>
+                <artifactId>micrometer-core</artifactId>
+                <version>1.5.1</version>
+            </dependency>
+            <dependency>
+                <groupId>io.micrometer</groupId>
+                <artifactId>micrometer-jersey2</artifactId>
+                <version>1.5.1</version>
+            </dependency>
+            <dependency>
+                <groupId>io.micrometer</groupId>
+                <artifactId>micrometer-registry-appoptics</artifactId>
+                <version>1.5.1</version>
+            </dependency>
+            <dependency>
+                <groupId>io.micrometer</groupId>
+                <artifactId>micrometer-registry-atlas</artifactId>
+                <version>1.5.1</version>
+            </dependency>
+            <dependency>
+                <groupId>io.micrometer</groupId>
+                <artifactId>micrometer-registry-azure-monitor</artifactId>
+                <version>1.5.1</version>
+            </dependency>
+            <dependency>
+                <groupId>io.micrometer</groupId>
+                <artifactId>micrometer-registry-cloudwatch</artifactId>
+                <version>1.5.1</version>
+            </dependency>
+            <dependency>
+                <groupId>io.micrometer</groupId>
+                <artifactId>micrometer-registry-cloudwatch2</artifactId>
+                <version>1.5.1</version>
+            </dependency>
+            <dependency>
+                <groupId>io.micrometer</groupId>
+                <artifactId>micrometer-registry-datadog</artifactId>
+                <version>1.5.1</version>
+            </dependency>
+            <dependency>
+                <groupId>io.micrometer</groupId>
+                <artifactId>micrometer-registry-dynatrace</artifactId>
+                <version>1.5.1</version>
+            </dependency>
+            <dependency>
+                <groupId>io.micrometer</groupId>
+                <artifactId>micrometer-registry-elastic</artifactId>
+                <version>1.5.1</version>
+            </dependency>
+            <dependency>
+                <groupId>io.micrometer</groupId>
+                <artifactId>micrometer-registry-ganglia</artifactId>
+                <version>1.5.1</version>
+            </dependency>
+            <dependency>
+                <groupId>io.micrometer</groupId>
+                <artifactId>micrometer-registry-graphite</artifactId>
+                <version>1.5.1</version>
+            </dependency>
+            <dependency>
+                <groupId>io.micrometer</groupId>
+                <artifactId>micrometer-registry-humio</artifactId>
+                <version>1.5.1</version>
+            </dependency>
+            <dependency>
+                <groupId>io.micrometer</groupId>
+                <artifactId>micrometer-registry-influx</artifactId>
+                <version>1.5.1</version>
+            </dependency>
+            <dependency>
+                <groupId>io.micrometer</groupId>
+                <artifactId>micrometer-registry-jmx</artifactId>
+                <version>1.5.1</version>
+            </dependency>
+            <dependency>
+                <groupId>io.micrometer</groupId>
+                <artifactId>micrometer-registry-kairos</artifactId>
+                <version>1.5.1</version>
+            </dependency>
+            <dependency>
+                <groupId>io.micrometer</groupId>
+                <artifactId>micrometer-registry-new-relic</artifactId>
+                <version>1.5.1</version>
+            </dependency>
+            <dependency>
+                <groupId>io.micrometer</groupId>
+                <artifactId>micrometer-registry-opentsdb</artifactId>
+                <version>1.5.1</version>
+            </dependency>
+            <dependency>
+                <groupId>io.micrometer</groupId>
+                <artifactId>micrometer-registry-prometheus</artifactId>
+                <version>1.5.1</version>
+            </dependency>
+            <dependency>
+                <groupId>io.micrometer</groupId>
+                <artifactId>micrometer-registry-signalfx</artifactId>
+                <version>1.5.1</version>
+            </dependency>
+            <dependency>
+                <groupId>io.micrometer</groupId>
+                <artifactId>micrometer-registry-stackdriver</artifactId>
+                <version>1.5.1</version>
+            </dependency>
+            <dependency>
+                <groupId>io.micrometer</groupId>
+                <artifactId>micrometer-registry-statsd</artifactId>
+                <version>1.5.1</version>
+            </dependency>
+            <dependency>
+                <groupId>io.micrometer</groupId>
+                <artifactId>micrometer-registry-wavefront</artifactId>
+                <version>1.5.1</version>
+            </dependency>
+            <dependency>
+                <groupId>io.micrometer</groupId>
+                <artifactId>micrometer-test</artifactId>
+                <version>1.5.1</version>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+    <name>micrometer-bom</name>
+    <description>Micrometer BOM (Bill of Materials) for managing Micrometer artifact versions</description>
+    <licenses>
+        <license>
+            <name>The Apache Software License, Version 2.0</name>
+            <url>http://www.apache.org/licenses/LICENSE-2.0.txt</url>
+            <distribution>repo</distribution>
+        </license>
+    </licenses>
+    <properties>
+        <nebula_Manifest_Version>1.0</nebula_Manifest_Version>
+        <nebula_Implementation_Title>io.micrometer#micrometer-bom;1.5.1</nebula_Implementation_Title>
+        <nebula_Implementation_Version>1.5.1</nebula_Implementation_Version>
+        <nebula_Built_Status>release</nebula_Built_Status>
+        <nebula_Built_By>circleci</nebula_Built_By>
+        <nebula_Built_OS>Linux</nebula_Built_OS>
+        <nebula_Build_Date>2020-05-08_16:43:24</nebula_Build_Date>
+        <nebula_Gradle_Version>6.4</nebula_Gradle_Version>
+        <nebula_Module_Source>/micrometer-bom</nebula_Module_Source>
+        <nebula_Module_Origin>git@github.com:micrometer-metrics/micrometer.git</nebula_Module_Origin>
+        <nebula_Change>5984c10</nebula_Change>
+        <nebula_Branch>5984c10fc12b781652e27a9ea95c439f96e73cf8</nebula_Branch>
+        <nebula_Build_Host>82db0d896427</nebula_Build_Host>
+        <nebula_Build_Job>LOCAL</nebula_Build_Job>
+        <nebula_Build_Number>LOCAL</nebula_Build_Number>
+        <nebula_Build_Id>LOCAL</nebula_Build_Id>
+        <nebula_Created_By>14.0.1+7 (Oracle Corporation)</nebula_Created_By>
+        <nebula_Build_Java_Version>14.0.1</nebula_Build_Java_Version>
+        <nebula_Module_Owner>tludwig@vmware.com</nebula_Module_Owner>
+        <nebula_Module_Email>tludwig@vmware.com</nebula_Module_Email>
+    </properties>
+    <url>https://github.com/micrometer-metrics/micrometer</url>
+    <scm>
+        <url>git@github.com:micrometer-metrics/micrometer.git</url>
+    </scm>
+    <developers>
+        <developer>
+            <id>shakuzen</id>
+            <name>Tommy Ludwig</name>
+            <email>tludwig@vmware.com</email>
+        </developer>
+    </developers>
 </project>
--- a/fixtures/repositories/m2/io/micrometer/micrometer-bom/1.5.1/micrometer-bom-1.5.1.pom.sha1
+++ b/fixtures/repositories/m2/io/micrometer/micrometer-bom/1.5.1/micrometer-bom-1.5.1.pom.sha1
@@ -1 +1 @@
-fb57aac12f2370e7115ab8af5265322397cae49e
+07e9957e505eb062485e8ba52d14620e38baf45d
--- a/fixtures/repositories/m2/org/apache/test/1.0.0/test-1.0.0.pom.sha1
+++ b/fixtures/repositories/m2/org/apache/test/1.0.0/test-1.0.0.pom.sha1
@@ -0,0 +1 @@
+88e79ca0e696263e63bc9dc759a2e9c0d66e36d9
--- a/fixtures/repositories/m2/org/apache/test/maven-metadata.xml
+++ b/fixtures/repositories/m2/org/apache/test/maven-metadata.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+   Licensed to the Apache Software Foundation (ASF) under one
+   or more contributor license agreements.  See the NOTICE file
+   distributed with this work for additional information
+   regarding copyright ownership.  The ASF licenses this file
+   to you under the Apache License, Version 2.0 (the
+   "License"); you may not use this file except in compliance
+   with the License.  You may obtain a copy of the License at
+
+     https://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing,
+   software distributed under the License is distributed on an
+   "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+   KIND, either express or implied.  See the License for the
+   specific language governing permissions and limitations
+   under the License.
+-->
+<metadata>
+  <groupId>org.apache</groupId>
+  <artifactId>test</artifactId>
+  <version>1.0.0</version>
+</metadata>
--- a/fixtures/s3/maven-snapshot/groovy/build.gradle
+++ b/fixtures/s3/maven-snapshot/groovy/build.gradle
@@ -0,0 +1,17 @@
+plugins {
+    id('java')
+}
+
+repositories {
+    maven {
+        url "s3://repositories/m2"
+        credentials(AwsCredentials) {
+            accessKey "foo"
+            secretKey "bar"
+        }
+    }
+}
+
+dependencies {
+    implementation("org.apache:test-SNAPSHOT1:2.0.0-SNAPSHOT")
+}
--- a/fixtures/s3/maven-snapshot/groovy/settings.gradle
+++ b/fixtures/s3/maven-snapshot/groovy/settings.gradle
--- a/fixtures/s3/maven-snapshot/kotlin/build.gradle.kts
+++ b/fixtures/s3/maven-snapshot/kotlin/build.gradle.kts
@@ -0,0 +1,17 @@
+plugins {
+    java
+}
+
+repositories {
+    maven {
+        url = uri("s3://repositories/m2")
+        credentials(AwsCredentials::class) {
+            accessKey = "foo"
+            secretKey = "bar"
+        }
+    }
+}
+
+dependencies {
+    implementation("org.apache:test-SNAPSHOT1:2.0.0-SNAPSHOT")
+}
--- a/fixtures/s3/maven-snapshot/kotlin/settings.gradle.kts
+++ b/fixtures/s3/maven-snapshot/kotlin/settings.gradle.kts
--- a/fixtures/s3/maven/groovy/build.gradle
+++ b/fixtures/s3/maven/groovy/build.gradle
@@ -0,0 +1,17 @@
+plugins {
+    id('java')
+}
+
+repositories {
+    maven {
+        url "s3://repositories/m2"
+        credentials(AwsCredentials) {
+            accessKey "foo"
+            secretKey "bar"
+        }
+    }
+}
+
+dependencies {
+    implementation("org.apache:test:1.0.0")
+}
--- a/fixtures/s3/maven/groovy/settings.gradle
+++ b/fixtures/s3/maven/groovy/settings.gradle
--- a/fixtures/s3/maven/kotlin/build.gradle.kts
+++ b/fixtures/s3/maven/kotlin/build.gradle.kts
@@ -0,0 +1,17 @@
+plugins {
+    java
+}
+
+repositories {
+    maven {
+        url = uri("s3://repositories/m2")
+        credentials(AwsCredentials::class) {
+            accessKey = "foo"
+            secretKey = "bar"
+        }
+    }
+}
+
+dependencies {
+    implementation("org.apache:test:1.0.0")
+}
--- a/fixtures/s3/maven/kotlin/settings.gradle.kts
+++ b/fixtures/s3/maven/kotlin/settings.gradle.kts
--- a/fixtures/settings/dependency-resolution-management/kotlin/build.gradle.kts
+++ b/fixtures/settings/dependency-resolution-management/kotlin/build.gradle.kts
@@ -0,0 +1,7 @@
+plugins {
+    java
+}
+
+dependencies {
+    implementation("org.apache:test:1.0.0")
+}
--- a/fixtures/settings/dependency-resolution-management/kotlin/settings.gradle.kts
+++ b/fixtures/settings/dependency-resolution-management/kotlin/settings.gradle.kts
@@ -0,0 +1,6 @@
+dependencyResolutionManagement {
+    repositories {
+        maven { url = uri("http://localhost:9999") }
+    }
+    repositoriesMode.set(RepositoriesMode.PREFER_SETTINGS)
+}
--- a/gradle-env.json
+++ b/gradle-env.json
--- a/gradle-env.nix
+++ b/gradle-env.nix
@@ -19,7 +19,15 @@
 #         '';
 #       }

-{ stdenv, buildEnv, fetchurl, gradleGen, writeText, writeTextDir }:
+{ lib
+, stdenv
+, buildEnv
+, fetchs3
+, fetchurl
+, gradleGen
+, writeText
+, writeTextDir
+}:

 {
 # Path to the environment spec generated by gradle2nix (e.g. gradle-env.json).
@@ -38,29 +46,68 @@
 , extraInit ? ""
 # Override the default JDK used to run Gradle itself.
 , buildJdk ? null
+# Override functions which fetch dependency artifacts.
+# Keys in this set are URL schemes such as "https" or "s3".
+# Values are functions which take a dependency in the form
+# `{ urls, sha256 }` and fetch into the Nix store. For example:
+#
+#   {
+#     s3 = { urls, sha256 }: fetchs3 {
+#       s3url = builtins.head urls;
+#       inherit sha256;
+#       region = "us-west-2";
+#       credentials = {
+#         access_key_id = "foo";
+#         secret_access_key = "bar";
+#       };
+#     };
+#   }
+, fetchers ? { }
 , ... } @ args:

 let
  inherit (builtins)
-    attrValues concatStringsSep filter fromJSON match replaceStrings sort;
+    attrValues concatStringsSep filter fromJSON getAttr head match
+    replaceStrings sort;

-  inherit (stdenv.lib)
-    assertMsg concatMapStringsSep groupBy' hasSuffix last mapAttrs
+  inherit (lib)
+    assertMsg concatMapStringsSep groupBy' hasSuffix hasPrefix last mapAttrs
    mapAttrsToList optionalString readFile removeSuffix unique versionAtLeast
    versionOlder;

-  mkDep = depSpec: stdenv.mkDerivation {
-    inherit (depSpec) name;
+  fetchers' = {
+    http = fetchurl;
+    https = fetchurl;
+    s3 = { urls, sha256 }: fetchs3 {
+      s3url = head urls;
+      inherit sha256;
+    };
+  } // fetchers;

-    src = fetchurl {
-      inherit (depSpec) urls sha256;
+  # Fetch urls using the scheme for the first entry only; there isn't a
+  # straightforward way to tell Nix to try multiple fetchers in turn
+  # and short-circuit on the first successful fetch.
+  fetch = { urls, sha256 }:
+    let
+      first = head urls;
+      scheme = head (builtins.match "([a-z0-9+.-]+)://.*" first);
+      fetch' = getAttr scheme fetchers';
+      urls' = filter (hasPrefix scheme) urls;
+    in
+      fetch' { urls = urls'; inherit sha256; };
+
+  mkDep = { name, path, urls, sha256, ... }: stdenv.mkDerivation {
+    inherit name;
+
+    src = fetch {
+      inherit urls sha256;
    };

    phases = "installPhase";

    installPhase = ''
-      mkdir -p $out/${depSpec.path}
-      ln -s $src $out/${depSpec.path}/${depSpec.name}
+      mkdir -p $out/${path}
+      ln -s $src $out/${path}/${name}
    '';
  };

@@ -190,6 +237,19 @@ let
    let
      repos = mapAttrs (mkRepo projectSpec.name) projectSpec.dependencies;
      hasDependencies = mapAttrs (type: deps: deps != []) projectSpec.dependencies;
+
+      inSettings = pred: script:
+        optionalString pred (
+          if versionAtLeast gradle.version "6.0" then ''
+            gradle.beforeSettings {
+              ${script}
+            }
+          '' else ''
+            gradle.settingsEvaluated {
+              ${script}
+            }
+          ''
+        );
    in
      assert (assertMsg (hasDependencies.settings -> versionAtLeast gradle.version "6.0") ''
        Project `${projectSpec.name}' has settings script dependencies, such as settings
@@ -224,16 +284,12 @@ let
            }
        }

-        ${optionalString (hasDependencies.settings && (versionAtLeast gradle.version "6.0")) ''
-          gradle.beforeSettings {
-              offlineRepo(it.buildscript.repositories, "settings", "${repos.settings}")
-          }
+        ${inSettings (hasDependencies.settings && (versionAtLeast gradle.version "6.0")) ''
+          offlineRepo(it.buildscript.repositories, "settings", "${repos.settings}")
        ''}

-        ${optionalString (hasDependencies.plugin) ''
-          gradle.settingsEvaluated {
-              offlineRepo(it.pluginManagement.repositories, "plugin", "${repos.plugin}")
-          }
+        ${inSettings (hasDependencies.plugin) ''
+            offlineRepo(it.pluginManagement.repositories, "plugin", "${repos.plugin}")
        ''}

        ${optionalString (hasDependencies.buildscript) ''
@@ -246,13 +302,24 @@ let
          }
        ''}

-        ${optionalString (hasDependencies.project) ''
-          gradle.projectsLoaded {
-              allprojects {
-                  offlineRepo(repositories, "project", "${repos.project}")
-              }
-          }
-        ''}
+        ${optionalString (hasDependencies.project) (
+          if versionAtLeast gradle.version "6.8"
+          then ''
+            gradle.beforeSettings {
+                it.dependencyResolutionManagement {
+                    offlineRepo(repositories, "project", "${repos.project}")
+                    repositoriesMode.set(RepositoriesMode.PREFER_SETTINGS)
+                }
+            }
+          ''
+          else ''
+            gradle.projectsLoaded {
+                allprojects {
+                    offlineRepo(repositories, "project", "${repos.project}")
+                }
+            }
+          ''
+        )}

        ${extraInit}
      '';
@@ -285,6 +352,8 @@ let
  version = args.version or projectEnv.version;

  buildProject = env: flags: ''
+    cp ${env.initScript} "$GRADLE_USER_HOME/init.d"
+
    gradle --offline --no-daemon --no-build-cache \
      --info --full-stacktrace --warning-mode=all \
      ${optionalString enableParallelBuilding "--parallel"} \
@@ -314,12 +383,11 @@ in stdenv.mkDerivation (args // {
    (
    set -eux

-    # use the init script here
-    TMPHOME=$(mktemp -d)
-    mkdir -p $TMPHOME/init.d
-    cp ${projectEnv.initScript} $TMPHOME/init.d
+    # Work around https://github.com/gradle/gradle/issues/1055
+    TMPHOME="$(mktemp -d)"
+    mkdir -p "$TMPHOME/init.d"
+    export GRADLE_USER_HOME="$TMPHOME"

-    export "GRADLE_USER_HOME=$TMPHOME"
    ${buildIncludedProjects}
    ${buildRootProject}
    )
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,3 +1,6 @@
 org.gradle.jvmargs='-Dfile.encoding=UTF-8'

 VERSION=1.0.0-rc2
+
+shadowVersion=6.1.0
+stutterVersion=0.6.0
--- a/gradle/dependency-locks/settings-classpath.lockfile
+++ b/gradle/dependency-locks/settings-classpath.lockfile
@@ -0,0 +1,52 @@
+# This is a Gradle generated file for dependency locking.
+# Manual edits can break the build and are not advised.
+# This file is expected to be part of source control.
+com.fasterxml.jackson.core:jackson-annotations:2.12.1
+com.fasterxml.jackson.core:jackson-core:2.12.1
+com.fasterxml.jackson.core:jackson-databind:2.12.1
+com.fasterxml.jackson:jackson-bom:2.12.1
+com.github.gundy:semver4j:0.16.4
+com.github.jengelman.gradle.plugins:shadow:6.1.0
+com.github.johnrengelman.shadow:com.github.johnrengelman.shadow.gradle.plugin:6.1.0
+com.google.code.gson:gson:2.8.6
+commons-io:commons-io:2.6
+de.undercouch:gradle-download-task:4.0.2
+org.ajoberstar.stutter:org.ajoberstar.stutter.gradle.plugin:0.6.0
+org.ajoberstar:gradle-stutter:0.6.0
+org.antlr:antlr4-runtime:4.5.2-1
+org.apache.ant:ant-launcher:1.9.7
+org.apache.ant:ant:1.9.7
+org.apache.logging.log4j:log4j-api:2.13.3
+org.apache.logging.log4j:log4j-core:2.13.3
+org.codehaus.plexus:plexus-utils:3.0.24
+org.jdom:jdom2:2.0.6
+org.jetbrains.intellij.deps:trove4j:1.0.20181211
+org.jetbrains.kotlin.jvm:org.jetbrains.kotlin.jvm.gradle.plugin:1.4.20
+org.jetbrains.kotlin.kapt:org.jetbrains.kotlin.kapt.gradle.plugin:1.4.20
+org.jetbrains.kotlin:kotlin-android-extensions:1.4.20
+org.jetbrains.kotlin:kotlin-annotation-processing-gradle:1.4.20
+org.jetbrains.kotlin:kotlin-build-common:1.4.20
+org.jetbrains.kotlin:kotlin-compiler-embeddable:1.4.20
+org.jetbrains.kotlin:kotlin-compiler-runner:1.4.20
+org.jetbrains.kotlin:kotlin-daemon-client:1.4.20
+org.jetbrains.kotlin:kotlin-daemon-embeddable:1.4.20
+org.jetbrains.kotlin:kotlin-gradle-plugin-api:1.4.20
+org.jetbrains.kotlin:kotlin-gradle-plugin-model:1.4.20
+org.jetbrains.kotlin:kotlin-gradle-plugin:1.4.20
+org.jetbrains.kotlin:kotlin-reflect:1.4.20
+org.jetbrains.kotlin:kotlin-script-runtime:1.4.20
+org.jetbrains.kotlin:kotlin-scripting-common:1.4.20
+org.jetbrains.kotlin:kotlin-scripting-compiler-embeddable:1.4.20
+org.jetbrains.kotlin:kotlin-scripting-compiler-impl-embeddable:1.4.20
+org.jetbrains.kotlin:kotlin-scripting-jvm:1.4.20
+org.jetbrains.kotlin:kotlin-stdlib-common:1.4.20
+org.jetbrains.kotlin:kotlin-stdlib:1.4.20
+org.jetbrains.kotlin:kotlin-util-io:1.4.20
+org.jetbrains.kotlin:kotlin-util-klib:1.4.20
+org.jetbrains.kotlinx:kotlinx-coroutines-core:1.3.7
+org.jetbrains:annotations:13.0
+org.ow2.asm:asm-analysis:9.0
+org.ow2.asm:asm-commons:9.0
+org.ow2.asm:asm-tree:9.0
+org.ow2.asm:asm:9.0
+org.vafer:jdependency:2.1.1
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.8-rc-1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.8.1-all.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
--- a/ivy/build.gradle.kts
+++ b/ivy/build.gradle.kts
@@ -0,0 +1,24 @@
+plugins {
+    kotlin("jvm")
+}
+
+dependencies {
+    api("org.apache.ivy:ivy:latest.release")
+    api("com.amazonaws:aws-java-sdk-s3:latest.release")
+
+    testImplementation("com.adobe.testing:s3mock-junit5:latest.release")
+    testImplementation("io.strikt:strikt-core:latest.release")
+    testImplementation("org.junit.jupiter:junit-jupiter-api:latest.release")
+    testImplementation("org.junit.jupiter:junit-jupiter-params:latest.release")
+    testRuntimeOnly("org.junit.jupiter:junit-jupiter-engine:latest.release")
+    testRuntimeOnly("org.junit.platform:junit-platform-launcher:latest.release")
+}
+
+tasks {
+    test {
+        useJUnitPlatform {
+            includeEngines("junit-jupiter")
+        }
+        systemProperty("fixtures", "$rootDir/fixtures")
+    }
+}
--- a/ivy/gradle.lockfile
+++ b/ivy/gradle.lockfile
@@ -0,0 +1,123 @@
+# This is a Gradle generated file for dependency locking.
+# Manual edits can break the build and are not advised.
+# This file is expected to be part of source control.
+ch.qos.logback:logback-classic:1.2.3=testCompileClasspath,testRuntimeClasspath
+ch.qos.logback:logback-core:1.2.3=testCompileClasspath,testRuntimeClasspath
+com.adobe.testing:s3mock-junit5:2.1.28=testCompileClasspath,testRuntimeClasspath
+com.adobe.testing:s3mock-testsupport-common:2.1.28=testCompileClasspath,testRuntimeClasspath
+com.adobe.testing:s3mock:2.1.28=testCompileClasspath,testRuntimeClasspath
+com.amazonaws:aws-java-sdk-core:1.11.946=compileClasspath,runtimeClasspath,testCompileClasspath,testRuntimeClasspath
+com.amazonaws:aws-java-sdk-kms:1.11.946=compileClasspath,runtimeClasspath,testCompileClasspath,testRuntimeClasspath
+com.amazonaws:aws-java-sdk-s3:1.11.946=compileClasspath,runtimeClasspath,testCompileClasspath,testRuntimeClasspath
+com.amazonaws:jmespath-java:1.11.946=compileClasspath,runtimeClasspath,testCompileClasspath,testRuntimeClasspath
+com.christophsturm:filepeek:0.1.2=testRuntimeClasspath
+com.fasterxml.jackson.core:jackson-annotations:2.6.0=compileClasspath,runtimeClasspath
+com.fasterxml.jackson.core:jackson-annotations:2.9.0=testCompileClasspath,testRuntimeClasspath
+com.fasterxml.jackson.core:jackson-core:2.6.7=compileClasspath,runtimeClasspath
+com.fasterxml.jackson.core:jackson-core:2.9.9=testCompileClasspath,testRuntimeClasspath
+com.fasterxml.jackson.core:jackson-databind:2.6.7.4=compileClasspath,runtimeClasspath
+com.fasterxml.jackson.core:jackson-databind:2.9.9.3=testCompileClasspath,testRuntimeClasspath
+com.fasterxml.jackson.dataformat:jackson-dataformat-cbor:2.6.7=compileClasspath,runtimeClasspath,testCompileClasspath,testRuntimeClasspath
+com.fasterxml.jackson.dataformat:jackson-dataformat-xml:2.9.9=testCompileClasspath,testRuntimeClasspath
+com.fasterxml.jackson.datatype:jackson-datatype-jdk8:2.9.9=testCompileClasspath,testRuntimeClasspath
+com.fasterxml.jackson.datatype:jackson-datatype-jsr310:2.9.9=testCompileClasspath,testRuntimeClasspath
+com.fasterxml.jackson.module:jackson-module-jaxb-annotations:2.9.9=testCompileClasspath,testRuntimeClasspath
+com.fasterxml.jackson.module:jackson-module-parameter-names:2.9.9=testCompileClasspath,testRuntimeClasspath
+com.fasterxml.woodstox:woodstox-core:5.1.0=testCompileClasspath,testRuntimeClasspath
+com.fasterxml:classmate:1.3.4=testCompileClasspath,testRuntimeClasspath
+com.typesafe.netty:netty-reactive-streams-http:2.0.0=testRuntimeClasspath
+com.typesafe.netty:netty-reactive-streams:2.0.0=testRuntimeClasspath
+commons-codec:commons-codec:1.11=compileClasspath,runtimeClasspath,testCompileClasspath,testRuntimeClasspath
+commons-io:commons-io:2.6=testCompileClasspath,testRuntimeClasspath
+commons-logging:commons-logging:1.2=compileClasspath,runtimeClasspath,testCompileClasspath,testRuntimeClasspath
+io.netty:netty-buffer:4.1.33.Final=testRuntimeClasspath
+io.netty:netty-codec-http2:4.1.33.Final=testRuntimeClasspath
+io.netty:netty-codec-http:4.1.33.Final=testRuntimeClasspath
+io.netty:netty-codec:4.1.33.Final=testRuntimeClasspath
+io.netty:netty-common:4.1.33.Final=testRuntimeClasspath
+io.netty:netty-handler:4.1.33.Final=testRuntimeClasspath
+io.netty:netty-resolver:4.1.33.Final=testRuntimeClasspath
+io.netty:netty-transport-native-epoll:4.1.33.Final=testRuntimeClasspath
+io.netty:netty-transport-native-unix-common:4.1.33.Final=testRuntimeClasspath
+io.netty:netty-transport:4.1.33.Final=testRuntimeClasspath
+io.strikt:strikt-core:0.28.2=testCompileClasspath,testRuntimeClasspath
+javax.annotation:javax.annotation-api:1.3.2=testCompileClasspath,testRuntimeClasspath
+javax.servlet:javax.servlet-api:3.1.0=testCompileClasspath,testRuntimeClasspath
+javax.validation:validation-api:2.0.1.Final=testCompileClasspath,testRuntimeClasspath
+joda-time:joda-time:2.8.1=compileClasspath,runtimeClasspath,testCompileClasspath,testRuntimeClasspath
+org.apache.commons:commons-lang3:3.8.1=testCompileClasspath,testRuntimeClasspath
+org.apache.httpcomponents:httpclient:4.5.13=compileClasspath,runtimeClasspath,testCompileClasspath,testRuntimeClasspath
+org.apache.httpcomponents:httpcore:4.4.13=compileClasspath,runtimeClasspath,testCompileClasspath,testRuntimeClasspath
+org.apache.ivy:ivy:2.5.0=compileClasspath,runtimeClasspath,testCompileClasspath,testRuntimeClasspath
+org.apache.logging.log4j:log4j-api:2.11.2=testCompileClasspath,testRuntimeClasspath
+org.apache.logging.log4j:log4j-to-slf4j:2.11.2=testCompileClasspath,testRuntimeClasspath
+org.apiguardian:apiguardian-api:1.1.0=testCompileClasspath,testRuntimeClasspath
+org.codehaus.woodstox:stax2-api:4.1=testCompileClasspath,testRuntimeClasspath
+org.eclipse.jetty:jetty-continuation:9.4.19.v20190610=testCompileClasspath,testRuntimeClasspath
+org.eclipse.jetty:jetty-http:9.4.19.v20190610=testCompileClasspath,testRuntimeClasspath
+org.eclipse.jetty:jetty-io:9.4.19.v20190610=testCompileClasspath,testRuntimeClasspath
+org.eclipse.jetty:jetty-security:9.4.19.v20190610=testCompileClasspath,testRuntimeClasspath
+org.eclipse.jetty:jetty-server:9.4.19.v20190610=testCompileClasspath,testRuntimeClasspath
+org.eclipse.jetty:jetty-servlet:9.4.19.v20190610=testCompileClasspath,testRuntimeClasspath
+org.eclipse.jetty:jetty-servlets:9.4.19.v20190610=testCompileClasspath,testRuntimeClasspath
+org.eclipse.jetty:jetty-util:9.4.19.v20190610=testCompileClasspath,testRuntimeClasspath
+org.eclipse.jetty:jetty-webapp:9.4.19.v20190610=testCompileClasspath,testRuntimeClasspath
+org.eclipse.jetty:jetty-xml:9.4.19.v20190610=testCompileClasspath,testRuntimeClasspath
+org.hibernate.validator:hibernate-validator:6.0.17.Final=testCompileClasspath,testRuntimeClasspath
+org.jboss.logging:jboss-logging:3.3.2.Final=testCompileClasspath,testRuntimeClasspath
+org.jetbrains.kotlin:kotlin-reflect:1.4.21-2=testRuntimeClasspath
+org.jetbrains.kotlin:kotlin-stdlib-common:1.4.20=compileClasspath,runtimeClasspath
+org.jetbrains.kotlin:kotlin-stdlib-common:1.4.21-2=testCompileClasspath,testRuntimeClasspath
+org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.4.21-2=testCompileClasspath,testRuntimeClasspath
+org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.4.21-2=testCompileClasspath,testRuntimeClasspath
+org.jetbrains.kotlin:kotlin-stdlib:1.4.20=compileClasspath,runtimeClasspath
+org.jetbrains.kotlin:kotlin-stdlib:1.4.21-2=testCompileClasspath,testRuntimeClasspath
+org.jetbrains.kotlinx:kotlinx-coroutines-core-jvm:1.4.2=testRuntimeClasspath
+org.jetbrains.kotlinx:kotlinx-coroutines-core:1.4.2=testRuntimeClasspath
+org.jetbrains:annotations:13.0=compileClasspath,runtimeClasspath,testCompileClasspath,testRuntimeClasspath
+org.junit.jupiter:junit-jupiter-api:5.7.0=testCompileClasspath,testRuntimeClasspath
+org.junit.jupiter:junit-jupiter-engine:5.7.0=testRuntimeClasspath
+org.junit.jupiter:junit-jupiter-params:5.7.0=testCompileClasspath,testRuntimeClasspath
+org.junit.platform:junit-platform-commons:1.7.0=testCompileClasspath,testRuntimeClasspath
+org.junit.platform:junit-platform-engine:1.7.0=testRuntimeClasspath
+org.junit.platform:junit-platform-launcher:1.7.0=testRuntimeClasspath
+org.junit:junit-bom:5.7.0=testCompileClasspath,testRuntimeClasspath
+org.mortbay.jasper:apache-el:8.5.40=testCompileClasspath,testRuntimeClasspath
+org.opentest4j:opentest4j:1.2.0=testCompileClasspath,testRuntimeClasspath
+org.reactivestreams:reactive-streams:1.0.2=testCompileClasspath,testRuntimeClasspath
+org.slf4j:jul-to-slf4j:1.7.28=testCompileClasspath,testRuntimeClasspath
+org.slf4j:slf4j-api:1.7.28=testCompileClasspath,testRuntimeClasspath
+org.springframework.boot:spring-boot-autoconfigure:2.1.9.RELEASE=testCompileClasspath,testRuntimeClasspath
+org.springframework.boot:spring-boot-starter-jetty:2.1.9.RELEASE=testCompileClasspath,testRuntimeClasspath
+org.springframework.boot:spring-boot-starter-json:2.1.9.RELEASE=testCompileClasspath,testRuntimeClasspath
+org.springframework.boot:spring-boot-starter-logging:2.1.9.RELEASE=testCompileClasspath,testRuntimeClasspath
+org.springframework.boot:spring-boot-starter-web:2.1.9.RELEASE=testCompileClasspath,testRuntimeClasspath
+org.springframework.boot:spring-boot-starter:2.1.9.RELEASE=testCompileClasspath,testRuntimeClasspath
+org.springframework.boot:spring-boot:2.1.9.RELEASE=testCompileClasspath,testRuntimeClasspath
+org.springframework:spring-aop:5.1.10.RELEASE=testCompileClasspath,testRuntimeClasspath
+org.springframework:spring-beans:5.1.10.RELEASE=testCompileClasspath,testRuntimeClasspath
+org.springframework:spring-context:5.1.10.RELEASE=testCompileClasspath,testRuntimeClasspath
+org.springframework:spring-core:5.1.10.RELEASE=testCompileClasspath,testRuntimeClasspath
+org.springframework:spring-expression:5.1.10.RELEASE=testCompileClasspath,testRuntimeClasspath
+org.springframework:spring-jcl:5.1.10.RELEASE=testCompileClasspath,testRuntimeClasspath
+org.springframework:spring-web:5.1.10.RELEASE=testCompileClasspath,testRuntimeClasspath
+org.springframework:spring-webmvc:5.1.10.RELEASE=testCompileClasspath,testRuntimeClasspath
+org.yaml:snakeyaml:1.23=testRuntimeClasspath
+software.amazon.awssdk:annotations:2.7.19=testCompileClasspath,testRuntimeClasspath
+software.amazon.awssdk:apache-client:2.7.19=testRuntimeClasspath
+software.amazon.awssdk:auth:2.7.19=testCompileClasspath,testRuntimeClasspath
+software.amazon.awssdk:aws-core:2.7.19=testCompileClasspath,testRuntimeClasspath
+software.amazon.awssdk:aws-query-protocol:2.7.19=testCompileClasspath,testRuntimeClasspath
+software.amazon.awssdk:aws-xml-protocol:2.7.19=testCompileClasspath,testRuntimeClasspath
+software.amazon.awssdk:http-client-spi:2.7.19=testCompileClasspath,testRuntimeClasspath
+software.amazon.awssdk:netty-nio-client:2.7.19=testRuntimeClasspath
+software.amazon.awssdk:profiles:2.7.19=testCompileClasspath,testRuntimeClasspath
+software.amazon.awssdk:protocol-core:2.7.19=testCompileClasspath,testRuntimeClasspath
+software.amazon.awssdk:regions:2.7.19=testCompileClasspath,testRuntimeClasspath
+software.amazon.awssdk:s3:2.7.19=testCompileClasspath,testRuntimeClasspath
+software.amazon.awssdk:sdk-core:2.7.19=testCompileClasspath,testRuntimeClasspath
+software.amazon.awssdk:url-connection-client:2.7.19=testCompileClasspath,testRuntimeClasspath
+software.amazon.awssdk:utils:2.7.19=testCompileClasspath,testRuntimeClasspath
+software.amazon.eventstream:eventstream:1.0.1=testCompileClasspath,testRuntimeClasspath
+software.amazon.ion:ion-java:1.0.2=compileClasspath,runtimeClasspath,testCompileClasspath,testRuntimeClasspath
+empty=
--- a/ivy/src/main/kotlin/org/nixos/gradle2nix/S3.kt
+++ b/ivy/src/main/kotlin/org/nixos/gradle2nix/S3.kt
@@ -0,0 +1,294 @@
+package org.nixos.gradle2nix
+
+import com.amazonaws.AmazonServiceException
+import com.amazonaws.ClientConfiguration
+import com.amazonaws.auth.AWSCredentials
+import com.amazonaws.auth.AWSStaticCredentialsProvider
+import com.amazonaws.client.builder.AwsClientBuilder
+import com.amazonaws.regions.Region
+import com.amazonaws.regions.RegionUtils
+import com.amazonaws.regions.Regions
+import com.amazonaws.services.s3.AmazonS3
+import com.amazonaws.services.s3.AmazonS3ClientBuilder
+import com.amazonaws.services.s3.model.GetObjectRequest
+import com.amazonaws.services.s3.model.ListObjectsRequest
+import com.amazonaws.services.s3.model.ObjectMetadata
+import com.amazonaws.services.s3.model.S3Object
+import com.amazonaws.services.s3.model.S3ObjectInputStream
+import com.amazonaws.util.AwsHostNameUtils
+import org.apache.http.conn.ssl.NoopHostnameVerifier
+import org.apache.http.conn.ssl.SSLConnectionSocketFactory
+import org.apache.ivy.core.settings.TimeoutConstraint
+import org.apache.ivy.plugins.repository.AbstractRepository
+import org.apache.ivy.plugins.repository.RepositoryCopyProgressListener
+import org.apache.ivy.plugins.repository.Resource
+import org.apache.ivy.plugins.repository.TransferEvent
+import org.apache.ivy.util.FileUtil
+import java.io.File
+import java.io.FileOutputStream
+import java.io.IOException
+import java.io.InputStream
+import java.net.Socket
+import java.net.URI
+import java.security.KeyManagementException
+import java.security.NoSuchAlgorithmException
+import java.security.SecureRandom
+import java.security.cert.X509Certificate
+import javax.net.ssl.SSLContext
+import javax.net.ssl.SSLEngine
+import javax.net.ssl.TrustManager
+import javax.net.ssl.X509ExtendedTrustManager
+
+
+class S3Repository(
+    private val client: AmazonS3,
+    timeoutConstraint: TimeoutConstraint? = null
+) : AbstractRepository(timeoutConstraint) {
+
+    constructor(
+        credentials: AWSCredentials?,
+        endpoint: URI?,
+        timeoutConstraint: TimeoutConstraint?
+    ) : this(
+        AmazonS3ClientBuilder.standard().apply {
+            credentials?.let { setCredentials(AWSStaticCredentialsProvider(it)) }
+
+            if (endpoint != null) {
+                setEndpointConfiguration(
+                    AwsClientBuilder.EndpointConfiguration(
+                        endpoint.toString(),
+                        AwsHostNameUtils.parseRegion(endpoint.host, null) ?: Regions.US_EAST_1.name
+                    )
+                )
+                isChunkedEncodingDisabled = true
+                isPathStyleAccessEnabled = true
+            } else {
+                region = Regions.US_EAST_1.name
+            }
+
+            if (System.getProperty("org.nixos.gradle2nix.s3test") != null) {
+                clientConfiguration = ClientConfiguration().apply {
+                    apacheHttpClientConfig.sslSocketFactory = SSLConnectionSocketFactory(
+                        createBlindlyTrustingSslContext(),
+                        NoopHostnameVerifier.INSTANCE
+                    )
+                }
+            }
+        }.build(),
+        timeoutConstraint
+    )
+
+    private val cache = mutableMapOf<String, S3Resource>()
+
+    private val progress = RepositoryCopyProgressListener(this)
+
+    override fun getResource(source: String): Resource =
+        cache.getOrPut(source) { S3Resource(this, URI(source)) }
+
+    override fun get(source: String, destination: File) {
+        fireTransferInitiated(getResource(source), TransferEvent.REQUEST_GET)
+        try {
+            val res = getResource(source)
+            val totalLength = res.contentLength
+            if (totalLength > 0) {
+                progress.totalLength = totalLength
+            }
+            destination.parentFile?.mkdirs()
+            FileUtil.copy(
+                res.openStream(),
+                FileOutputStream(destination),
+                progress,
+                true
+            )
+            fireTransferCompleted(res.contentLength)
+        } catch (e: Exception) {
+            fireTransferError(e)
+            throw e
+        } finally {
+            progress.totalLength = null
+        }
+    }
+
+    override fun list(parent: String): List<String> =
+        S3Resource(this, URI(parent))
+            .let { resource ->
+                generateSequence({
+                    try {
+                        withClient(resource) {
+                            listObjects(
+                                ListObjectsRequest()
+                                    .withBucketName(resource.bucket)
+                                    .withPrefix(resource.key)
+                                    .withDelimiter("/")
+                            )
+                        }
+                    } catch (e: AmazonServiceException) {
+                        throw S3RepositoryException(e)
+                    }
+                }) { prev ->
+                    if (!prev.isTruncated) {
+                        null
+                    } else {
+                        try {
+                            withClient(resource) {
+                                listNextBatchOfObjects(prev)
+                            }
+                        } catch (e: AmazonServiceException) {
+                            throw S3RepositoryException(e)
+                        }
+                    }
+                }
+            }
+            .flatMap { listing ->
+                listing.commonPrefixes.asSequence() +
+                        listing.objectSummaries.asSequence().map { it.key }
+            }
+            .toList()
+
+    internal fun <T> withClient(
+        resource: S3Resource,
+        block: AmazonS3.() -> T
+    ): T = client.apply {
+        resource.region?.let { setRegion(it) }
+    }.block()
+}
+
+class S3Resource(
+    private val repository: S3Repository,
+    private val url: URI
+ ) : Resource {
+
+    private val source: Source by lazy {
+        REGIONAL_ENDPOINT_PATTERN.find(url.normalize().toString())
+            ?.let {
+                val (bucket, region, _, key) = it.destructured
+                Source(
+                    bucket = bucket,
+                    key = key,
+                    region = when (region) {
+                        "external-1" -> Region.getRegion(Regions.US_EAST_1)
+                        else -> RegionUtils.getRegion(region)
+                    }
+                )
+            }
+            ?: Source(
+                bucket = url.bucket(),
+                key = url.key(),
+                region = null
+            )
+    }
+
+    private val metadata: Metadata by lazy {
+        try {
+            getMetadata()
+        } catch (e: AmazonServiceException) {
+            null
+        }?.let { meta ->
+            Metadata(
+                exists = true,
+                contentLength = meta.contentLength,
+                lastModified = meta.lastModified.time
+            )
+        } ?: Metadata(
+            exists = false,
+            contentLength = 0,
+            lastModified = 0
+        )
+    }
+
+    val bucket: String get() = source.bucket
+
+    val key: String get() = source.key
+
+    val region: Region? get() = source.region
+
+    override fun getName(): String = url.toString()
+
+    override fun getLastModified(): Long = metadata.lastModified
+
+    override fun getContentLength(): Long = metadata.contentLength
+
+    override fun exists(): Boolean = metadata.exists
+
+    override fun isLocal(): Boolean = false
+
+    override fun clone(cloneName: String): Resource = S3Resource(repository, URI(cloneName))
+
+    override fun openStream(): InputStream =
+        try { getContent() }
+        catch (e: AmazonServiceException) { throw S3RepositoryException(e) }
+            ?: throw S3RepositoryException()
+
+    private fun getMetadata(): ObjectMetadata? =
+        getObject(withContent = false)?.objectMetadata
+
+    private fun getContent(): S3ObjectInputStream? =
+        getObject(withContent = true)?.objectContent
+
+    private fun getObject(withContent: Boolean = true): S3Object? {
+        val request = GetObjectRequest(bucket, key)
+        if (!withContent) {
+            request.setRange(0, 0)
+        }
+
+        return try {
+            repository.withClient(this) { getObject(request) }
+        } catch (e: AmazonServiceException) {
+            val errorCode = e.errorCode
+            if (errorCode != null && "NoSuchKey".compareTo(errorCode, ignoreCase = true) == 0) {
+                null
+            } else {
+                e.printStackTrace()
+                throw e
+            }
+        }
+    }
+
+    private data class Source(
+        val bucket: String,
+        val key: String,
+        val region: Region?
+    )
+
+    private data class Metadata(
+        val exists: Boolean,
+        val contentLength: Long,
+        val lastModified: Long
+    )
+
+    companion object {
+        private val REGIONAL_ENDPOINT_PATTERN =
+            Regex("""^s3://(.+)?\.s3[.-]([a-z0-9-]+)\.amazonaws\.com(\.[a-z]+)?/(.+)""")
+    }
+}
+
+class S3RepositoryException : RuntimeException {
+    constructor() : super()
+
+    constructor(throwable: Throwable) : super(throwable)
+}
+
+private fun URI.bucket(): String = normalize().host
+
+private fun URI.key(): String = normalize().path.removePrefix("/")
+
+// Used for testing.
+private fun createBlindlyTrustingSslContext(): SSLContext? {
+    return try {
+        SSLContext.getInstance("TLS").apply {
+            init(null, arrayOf<TrustManager>(object : X509ExtendedTrustManager() {
+                override fun getAcceptedIssuers(): Array<X509Certificate>? = null
+                override fun checkClientTrusted(arg0: Array<X509Certificate?>?, arg1: String?, arg2: Socket?) {}
+                override fun checkClientTrusted(arg0: Array<X509Certificate?>?, arg1: String?, arg2: SSLEngine?) {}
+                override fun checkClientTrusted(certs: Array<X509Certificate?>?, authType: String?) {}
+                override fun checkServerTrusted(certs: Array<X509Certificate?>?, authType: String?) {}
+                override fun checkServerTrusted(arg0: Array<X509Certificate?>?, arg1: String?, arg2: Socket?) {}
+                override fun checkServerTrusted(arg0: Array<X509Certificate?>?, arg1: String?, arg2: SSLEngine?) {}
+            }), SecureRandom())
+        }
+    } catch (e: NoSuchAlgorithmException) {
+        throw RuntimeException("Unexpected exception", e)
+    } catch (e: KeyManagementException) {
+        throw RuntimeException("Unexpected exception", e)
+    }
+}
--- a/ivy/src/test/kotlin/org/nixos/gradle2nix/S3Test.kt
+++ b/ivy/src/test/kotlin/org/nixos/gradle2nix/S3Test.kt
@@ -0,0 +1,113 @@
+package org.nixos.gradle2nix
+
+import com.adobe.testing.s3mock.junit5.S3MockExtension
+import com.amazonaws.services.s3.AmazonS3
+import org.apache.ivy.ant.IvyDependencyArtifact
+import org.apache.ivy.core.module.descriptor.Artifact
+import org.apache.ivy.core.module.descriptor.DefaultArtifact
+import org.apache.ivy.core.module.id.ArtifactRevisionId
+import org.apache.ivy.core.module.id.ModuleRevisionId
+import org.apache.ivy.core.settings.IvySettings
+import org.apache.ivy.plugins.repository.Resource
+import org.apache.ivy.plugins.resolver.IBiblioResolver
+import org.apache.ivy.plugins.resolver.URLResolver
+import org.junit.jupiter.api.BeforeAll
+import org.junit.jupiter.api.Test
+import org.junit.jupiter.api.TestInstance
+import org.junit.jupiter.api.extension.RegisterExtension
+import strikt.api.expectThat
+import strikt.assertions.containsExactly
+import strikt.assertions.isEmpty
+import strikt.assertions.isEqualTo
+import strikt.assertions.isFalse
+import strikt.assertions.isNotEqualTo
+import strikt.assertions.isNotNull
+import strikt.assertions.isTrue
+import java.io.File
+import java.net.URI
+import kotlin.io.path.ExperimentalPathApi
+import kotlin.io.path.createTempDirectory
+
+@TestInstance(TestInstance.Lifecycle.PER_CLASS)
+class S3Test {
+    companion object {
+        const val bucket = "repositories"
+
+        val fixtureRoot = File(System.getProperty("fixtures")).resolve(bucket)
+
+        @JvmField
+        @RegisterExtension
+        val s3mock: S3MockExtension = S3MockExtension.builder().withInitialBuckets(bucket).build()
+    }
+
+    @BeforeAll
+    fun populateBucket(client: AmazonS3) {
+        fixtureRoot.walkTopDown()
+            .filter { it.isFile }
+            .forEach { file ->
+                val key = file.toRelativeString(fixtureRoot)
+                client.putObject(bucket, key, file)
+            }
+    }
+
+    @Test
+    fun listsContents(client: AmazonS3) {
+        val repository = S3Repository(client)
+        expectThat(repository.list("s3://repositories/m2/org/apache/test/1.0.0/")).containsExactly(
+            "m2/org/apache/test/1.0.0/test-1.0.0.jar",
+            "m2/org/apache/test/1.0.0/test-1.0.0.pom",
+        )
+    }
+
+    @Test
+    fun findsResourceMetadata(client: AmazonS3) {
+        val repository = S3Repository(client)
+        val resource: Resource = S3Resource(repository, URI("s3://repositories/m2/org/apache/test/1.0.0/test-1.0.0.pom"))
+        expectThat(resource).and {
+            get { exists() }.isTrue()
+            get { contentLength }.isNotEqualTo(-1L)
+            get { lastModified }.isNotEqualTo(-1L)
+        }
+    }
+
+    @Test
+    fun downloadsResource(client: AmazonS3) {
+        val repository = S3Repository(client)
+        val resource: Resource = S3Resource(repository, URI("s3://repositories/m2/org/apache/test/1.0.0/test-1.0.0.pom"))
+        val source = fixtureRoot.resolve("m2/org/apache/test/1.0.0/test-1.0.0.pom").readText()
+
+        expectThat(resource.openStream().bufferedReader().readText()).isEqualTo(source)
+    }
+
+    @ExperimentalPathApi
+    @Test
+    fun locatesArtifact(client: AmazonS3) {
+        val resolver = IBiblioResolver().apply {
+            name = "s3"
+            root = "s3://repositories/m2/"
+            isM2compatible = true
+            settings = IvySettings().apply {
+                defaultInit()
+                setDefaultRepositoryCacheBasedir(createTempDirectory().toString())
+            }
+            repository = S3Repository(client)
+        }
+        val origin = resolver.locate(DefaultArtifact(
+            ArtifactRevisionId.newInstance(
+                ModuleRevisionId.newInstance("org.apache", "test", "1.0.0"),
+                "test",
+                "jar",
+                "jar"
+            ),
+            null,
+            null,
+            false
+        ))
+
+        expectThat(origin).isNotNull().and {
+            get { isExists }.isTrue()
+            get { isLocal }.isFalse()
+            get { location }.isEqualTo("s3://repositories/m2/org/apache/test/1.0.0/test-1.0.0.jar")
+        }
+    }
+}
--- a/plugin/.stutter/java11.lock
+++ b/plugin/.stutter/java11.lock
@@ -0,0 +1,5 @@
+# DO NOT MODIFY: Generated by Stutter plugin.
+5.0
+5.6.4
+6.0.1
+6.8.1
--- a/plugin/.stutter/java8.lock
+++ b/plugin/.stutter/java8.lock
@@ -4,5 +4,4 @@
 5.0
 5.6.4
 6.0.1
-6.7.1
-6.8-milestone-3
+6.8.1
--- a/plugin/build.gradle.kts
+++ b/plugin/build.gradle.kts
@@ -11,10 +11,8 @@ plugins {
 }

 sourceSets {
-    compatTest {
-        resources {
-            srcDir("$rootDir/fixtures")
-        }
+    test {
+        java.srcDir("src/test/kotlin")
    }
 }

@@ -29,25 +27,26 @@ configurations {
 }

 dependencies {
+    compileOnly("org.gradle:gradle-tooling-api:${gradle.gradleVersion}")
+    implementation("org.apache.maven:maven-repository-metadata:latest.release")
+    implementation(project(":ivy"))
    implementation(project(":model"))
    shadow(gradleApi())
-    compileOnly("org.gradle:gradle-tooling-api:${gradle.gradleVersion}")
-    implementation("org.apache.ivy:ivy:latest.release")
-    implementation("org.apache.maven:maven-repository-metadata:latest.release")

+    compatTestImplementation("com.adobe.testing:s3mock-junit5:latest.release")
+    compatTestImplementation("com.squareup.okio:okio:latest.release")
+    compatTestImplementation("dev.minutest:minutest:latest.release")
+    compatTestImplementation("io.javalin:javalin:latest.release")
+    compatTestImplementation("io.strikt:strikt-core:latest.release")
+    compatTestImplementation("org.junit.jupiter:junit-jupiter-api:latest.release")
+    compatTestImplementation("org.junit.jupiter:junit-jupiter-params:latest.release")
+    compatTestImplementation(embeddedKotlin("reflect"))
    compatTestImplementation(embeddedKotlin("stdlib-jdk8"))
    compatTestImplementation(embeddedKotlin("test-junit5"))
-    compatTestImplementation(embeddedKotlin("reflect"))
-    compatTestImplementation("org.junit.jupiter:junit-jupiter-api:latest.release")
-    compatTestRuntimeOnly("org.junit.jupiter:junit-jupiter-engine:latest.release")
-    compatTestImplementation("org.junit.jupiter:junit-jupiter-params:latest.release")
-    compatTestRuntimeOnly("org.junit.platform:junit-platform-launcher:latest.release")
-    compatTestImplementation("dev.minutest:minutest:latest.release")
    compatTestImplementation(gradleTestKit())
    compatTestImplementation(project(":model"))
-    compatTestImplementation("io.strikt:strikt-core:latest.release")
-    compatTestImplementation("com.squareup.okio:okio:latest.release")
-    compatTestImplementation("io.javalin:javalin:latest.release")
+    compatTestRuntimeOnly("org.junit.jupiter:junit-jupiter-engine:latest.release")
+    compatTestRuntimeOnly("org.junit.platform:junit-platform-launcher:latest.release")
 }

 gradlePlugin {
@@ -85,10 +84,11 @@ tasks {
            includeEngines("junit-jupiter")
        }

-        afterTest(KotlinClosure2<TestDescriptor, TestResult, Any>({ descriptor, result ->
-            // work around a bug in Gradle versions before 6.1, see https://github.com/junit-team/junit5/issues/2041
-            val test = descriptor as org.gradle.api.internal.tasks.testing.TestDescriptorInternal
-            println("[${test.classDisplayName}] > [${test.displayName}]: ${result.resultType}")
-        }))
+        // Default logging config exposes a classpath conflict between
+        // the Gradle API and SFL4J.
+        // (Sprint Boot is used in S3Mock)
+        systemProperty("org.springframework.boot.logging.LoggingSystem", "org.springframework.boot.logging.java.JavaLoggingSystem")
+
+        systemProperty("fixtures", "$rootDir/fixtures")
    }
 }
--- a/plugin/buildscript-gradle.lockfile
+++ b/plugin/buildscript-gradle.lockfile
@@ -5,8 +5,8 @@ com.github.gundy:semver4j:0.16.4=classpath
 com.google.code.gson:gson:2.8.6=classpath
 de.undercouch:gradle-download-task:4.0.2=classpath
 org.antlr:antlr4-runtime:4.5.2-1=classpath
-org.gradle.kotlin.kotlin-dsl:org.gradle.kotlin.kotlin-dsl.gradle.plugin:1.4.4=classpath
-org.gradle.kotlin:gradle-kotlin-dsl-plugins:1.4.4=classpath
+org.gradle.kotlin.kotlin-dsl:org.gradle.kotlin.kotlin-dsl.gradle.plugin:1.4.9=classpath
+org.gradle.kotlin:gradle-kotlin-dsl-plugins:1.4.9=classpath
 org.jetbrains.intellij.deps:trove4j:1.0.20181211=classpath
 org.jetbrains.kotlin:kotlin-android-extensions:1.4.20=classpath
 org.jetbrains.kotlin:kotlin-annotation-processing-gradle:1.4.20=classpath
--- a/plugin/gradle.lockfile
+++ b/plugin/gradle.lockfile
@@ -1,53 +1,118 @@
 # This is a Gradle generated file for dependency locking.
 # Manual edits can break the build and are not advised.
 # This file is expected to be part of source control.
+ch.qos.logback:logback-classic:1.2.3=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+ch.qos.logback:logback-core:1.2.3=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+com.adobe.testing:s3mock-junit5:2.1.28=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+com.adobe.testing:s3mock-testsupport-common:2.1.28=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+com.adobe.testing:s3mock:2.1.28=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+com.amazonaws:aws-java-sdk-core:1.11.488=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+com.amazonaws:aws-java-sdk-core:1.11.946=compileClasspath,default,implementationDependenciesMetadata,runtimeClasspath,testCompileClasspath,testImplementationDependenciesMetadata,testRuntimeClasspath
+com.amazonaws:aws-java-sdk-kms:1.11.488=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+com.amazonaws:aws-java-sdk-kms:1.11.946=compileClasspath,default,implementationDependenciesMetadata,runtimeClasspath,testCompileClasspath,testImplementationDependenciesMetadata,testRuntimeClasspath
+com.amazonaws:aws-java-sdk-s3:1.11.488=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+com.amazonaws:aws-java-sdk-s3:1.11.946=compileClasspath,default,implementationDependenciesMetadata,runtimeClasspath,testCompileClasspath,testImplementationDependenciesMetadata,testRuntimeClasspath
+com.amazonaws:jmespath-java:1.11.488=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+com.amazonaws:jmespath-java:1.11.946=compileClasspath,default,implementationDependenciesMetadata,runtimeClasspath,testCompileClasspath,testImplementationDependenciesMetadata,testRuntimeClasspath
 com.christophsturm:filepeek:0.1.2=compatTestRuntimeClasspath
+com.fasterxml.jackson.core:jackson-annotations:2.6.0=compileClasspath,default,implementationDependenciesMetadata,runtimeClasspath,testCompileClasspath,testImplementationDependenciesMetadata,testRuntimeClasspath
+com.fasterxml.jackson.core:jackson-annotations:2.9.0=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+com.fasterxml.jackson.core:jackson-core:2.6.7=compileClasspath,default,implementationDependenciesMetadata,runtimeClasspath,testCompileClasspath,testImplementationDependenciesMetadata,testRuntimeClasspath
+com.fasterxml.jackson.core:jackson-core:2.9.9=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+com.fasterxml.jackson.core:jackson-databind:2.6.7.4=compileClasspath,default,implementationDependenciesMetadata,runtimeClasspath,testCompileClasspath,testImplementationDependenciesMetadata,testRuntimeClasspath
+com.fasterxml.jackson.core:jackson-databind:2.9.9.3=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+com.fasterxml.jackson.dataformat:jackson-dataformat-cbor:2.6.7=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath,compileClasspath,default,implementationDependenciesMetadata,runtimeClasspath,testCompileClasspath,testImplementationDependenciesMetadata,testRuntimeClasspath
+com.fasterxml.jackson.dataformat:jackson-dataformat-xml:2.9.9=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+com.fasterxml.jackson.datatype:jackson-datatype-jdk8:2.9.9=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+com.fasterxml.jackson.datatype:jackson-datatype-jsr310:2.9.9=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+com.fasterxml.jackson.module:jackson-module-jaxb-annotations:2.9.9=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+com.fasterxml.jackson.module:jackson-module-parameter-names:2.9.9=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+com.fasterxml.woodstox:woodstox-core:5.1.0=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+com.fasterxml:classmate:1.3.4=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
 com.squareup.moshi:moshi:1.11.0=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath,compileClasspath,default,implementationDependenciesMetadata,runtimeClasspath,testCompileClasspath,testImplementationDependenciesMetadata,testRuntimeClasspath
-com.squareup.okio:okio-metadata:2.9.0=compatTestImplementationDependenciesMetadata
+com.squareup.okio:okio-metadata:3.0.0-alpha.1=compatTestImplementationDependenciesMetadata
 com.squareup.okio:okio:1.17.5=compileClasspath,default,implementationDependenciesMetadata,runtimeClasspath,testCompileClasspath,testImplementationDependenciesMetadata,testRuntimeClasspath
-com.squareup.okio:okio:2.9.0=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
-dev.minutest:minutest:1.11.0=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+com.squareup.okio:okio:3.0.0-alpha.1=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+com.typesafe.netty:netty-reactive-streams-http:2.0.0=compatTestRuntimeClasspath
+com.typesafe.netty:netty-reactive-streams:2.0.0=compatTestRuntimeClasspath
+commons-codec:commons-codec:1.11=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath,compileClasspath,default,implementationDependenciesMetadata,runtimeClasspath,testCompileClasspath,testImplementationDependenciesMetadata,testRuntimeClasspath
+commons-io:commons-io:2.6=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+commons-logging:commons-logging:1.2=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath,compileClasspath,default,implementationDependenciesMetadata,runtimeClasspath,testCompileClasspath,testImplementationDependenciesMetadata,testRuntimeClasspath
+dev.minutest:minutest:2.0.0-alpha=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
 io.github.classgraph:classgraph:4.8.28=compatTestRuntimeClasspath
-io.javalin:javalin:3.12.0=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
-io.strikt:strikt-core:0.28.1=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+io.javalin:javalin:3.13.3=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+io.netty:netty-buffer:4.1.33.Final=compatTestRuntimeClasspath
+io.netty:netty-codec-http2:4.1.33.Final=compatTestRuntimeClasspath
+io.netty:netty-codec-http:4.1.33.Final=compatTestRuntimeClasspath
+io.netty:netty-codec:4.1.33.Final=compatTestRuntimeClasspath
+io.netty:netty-common:4.1.33.Final=compatTestRuntimeClasspath
+io.netty:netty-handler:4.1.33.Final=compatTestRuntimeClasspath
+io.netty:netty-resolver:4.1.33.Final=compatTestRuntimeClasspath
+io.netty:netty-transport-native-epoll:4.1.33.Final=compatTestRuntimeClasspath
+io.netty:netty-transport-native-unix-common:4.1.33.Final=compatTestRuntimeClasspath
+io.netty:netty-transport:4.1.33.Final=compatTestRuntimeClasspath
+io.strikt:strikt-core:0.28.2=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+javax.annotation:javax.annotation-api:1.3.2=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
 javax.servlet:javax.servlet-api:3.1.0=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+javax.validation:validation-api:2.0.1.Final=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+joda-time:joda-time:2.8.1=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath,compileClasspath,default,implementationDependenciesMetadata,runtimeClasspath,testCompileClasspath,testImplementationDependenciesMetadata,testRuntimeClasspath
 net.swiftzer.semver:semver:1.1.1=compatTestRuntimeClasspath,default,runtimeClasspath,testRuntimeClasspath
+org.apache.commons:commons-lang3:3.8.1=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+org.apache.httpcomponents:httpclient:4.5.13=compileClasspath,default,implementationDependenciesMetadata,runtimeClasspath,testCompileClasspath,testImplementationDependenciesMetadata,testRuntimeClasspath
+org.apache.httpcomponents:httpclient:4.5.5=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata
+org.apache.httpcomponents:httpclient:4.5.9=compatTestRuntimeClasspath
+org.apache.httpcomponents:httpcore:4.4.11=compatTestRuntimeClasspath
+org.apache.httpcomponents:httpcore:4.4.13=compileClasspath,default,implementationDependenciesMetadata,runtimeClasspath,testCompileClasspath,testImplementationDependenciesMetadata,testRuntimeClasspath
+org.apache.httpcomponents:httpcore:4.4.9=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata
 org.apache.ivy:ivy:2.5.0=compileClasspath,default,implementationDependenciesMetadata,runtimeClasspath,testCompileClasspath,testImplementationDependenciesMetadata,testRuntimeClasspath
+org.apache.logging.log4j:log4j-api:2.11.2=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+org.apache.logging.log4j:log4j-to-slf4j:2.11.2=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
 org.apache.maven:maven-repository-metadata:3.6.3=compileClasspath,default,implementationDependenciesMetadata,runtimeClasspath,testCompileClasspath,testImplementationDependenciesMetadata,testRuntimeClasspath
 org.apiguardian:apiguardian-api:1.1.0=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath,compatTestRuntimeOnlyDependenciesMetadata
 org.codehaus.plexus:plexus-utils:3.2.1=compileClasspath,default,implementationDependenciesMetadata,runtimeClasspath,testCompileClasspath,testImplementationDependenciesMetadata,testRuntimeClasspath
-org.eclipse.jetty.websocket:websocket-api:9.4.31.v20200723=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
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-org.gradle:gradle-tooling-api:6.8-rc-1=compileClasspath,compileOnly,compileOnlyDependenciesMetadata
+org.codehaus.woodstox:stax2-api:4.1=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
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+org.eclipse.jetty:jetty-io:9.4.35.v20201120=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+org.eclipse.jetty:jetty-security:9.4.35.v20201120=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+org.eclipse.jetty:jetty-server:9.4.35.v20201120=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+org.eclipse.jetty:jetty-servlet:9.4.35.v20201120=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+org.eclipse.jetty:jetty-servlets:9.4.19.v20190610=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+org.eclipse.jetty:jetty-util-ajax:9.4.35.v20201120=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
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+org.eclipse.jetty:jetty-xml:9.4.35.v20201120=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+org.gradle:gradle-tooling-api:6.8.1=compileClasspath,compileOnly,compileOnlyDependenciesMetadata
+org.hibernate.validator:hibernate-validator:6.0.17.Final=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+org.jboss.logging:jboss-logging:3.3.2.Final=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
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-org.jetbrains.kotlin:kotlin-reflect:1.4.20=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath,compileClasspath,compileOnly,compileOnlyDependenciesMetadata,embeddedKotlin,kotlinCompilerClasspath,kotlinKlibCommonizerClasspath,testCompileClasspath,testImplementationDependenciesMetadata,testRuntimeClasspath
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+org.jetbrains.kotlin:kotlin-reflect:1.4.21-2=compatTestRuntimeClasspath
 org.jetbrains.kotlin:kotlin-sam-with-receiver:1.4.20=kotlinCompilerPluginClasspath
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 org.jetbrains.kotlin:kotlin-scripting-jvm:1.4.20=kotlinCompilerPluginClasspath
-org.jetbrains.kotlin:kotlin-stdlib-common:1.4.20=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath,compileClasspath,compileOnly,compileOnlyDependenciesMetadata,embeddedKotlin,kotlinCompilerClasspath,kotlinCompilerPluginClasspath,kotlinKlibCommonizerClasspath,testCompileClasspath,testImplementationDependenciesMetadata,testRuntimeClasspath
-org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.4.20=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath,compileClasspath,compileOnly,compileOnlyDependenciesMetadata,embeddedKotlin,testCompileClasspath,testImplementationDependenciesMetadata,testRuntimeClasspath
-org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.4.20=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath,compileClasspath,compileOnly,compileOnlyDependenciesMetadata,embeddedKotlin,testCompileClasspath,testImplementationDependenciesMetadata,testRuntimeClasspath
-org.jetbrains.kotlin:kotlin-stdlib:1.4.20=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath,compileClasspath,compileOnly,compileOnlyDependenciesMetadata,embeddedKotlin,kotlinCompilerClasspath,kotlinCompilerPluginClasspath,kotlinKlibCommonizerClasspath,testCompileClasspath,testImplementationDependenciesMetadata,testRuntimeClasspath
+org.jetbrains.kotlin:kotlin-stdlib-common:1.4.20=compileClasspath,compileOnly,compileOnlyDependenciesMetadata,default,embeddedKotlin,implementationDependenciesMetadata,kotlinCompilerClasspath,kotlinCompilerPluginClasspath,kotlinKlibCommonizerClasspath,runtimeClasspath,testCompileClasspath,testImplementationDependenciesMetadata,testRuntimeClasspath
+org.jetbrains.kotlin:kotlin-stdlib-common:1.4.21-2=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.4.20=compileClasspath,compileOnly,compileOnlyDependenciesMetadata,embeddedKotlin,testCompileClasspath,testImplementationDependenciesMetadata,testRuntimeClasspath
+org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.4.21-2=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.4.20=compileClasspath,compileOnly,compileOnlyDependenciesMetadata,embeddedKotlin,testCompileClasspath,testImplementationDependenciesMetadata,testRuntimeClasspath
+org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.4.21-2=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+org.jetbrains.kotlin:kotlin-stdlib:1.4.20=compileClasspath,compileOnly,compileOnlyDependenciesMetadata,default,embeddedKotlin,implementationDependenciesMetadata,kotlinCompilerClasspath,kotlinCompilerPluginClasspath,kotlinKlibCommonizerClasspath,runtimeClasspath,testCompileClasspath,testImplementationDependenciesMetadata,testRuntimeClasspath
+org.jetbrains.kotlin:kotlin-stdlib:1.4.21-2=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
 org.jetbrains.kotlin:kotlin-test-annotations-common:1.4.20=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
 org.jetbrains.kotlin:kotlin-test-common:1.4.20=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
 org.jetbrains.kotlin:kotlin-test-junit5:1.4.20=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
@@ -55,7 +120,7 @@ org.jetbrains.kotlin:kotlin-test:1.4.20=compatTestCompileClasspath,compatTestImp
 org.jetbrains.kotlinx:kotlinx-coroutines-core-jvm:1.4.2=compatTestRuntimeClasspath
 org.jetbrains.kotlinx:kotlinx-coroutines-core:1.3.7=kotlinCompilerPluginClasspath
 org.jetbrains.kotlinx:kotlinx-coroutines-core:1.4.2=compatTestRuntimeClasspath
-org.jetbrains:annotations:13.0=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath,compileClasspath,compileOnly,compileOnlyDependenciesMetadata,embeddedKotlin,kotlinCompilerClasspath,kotlinCompilerPluginClasspath,kotlinKlibCommonizerClasspath,testCompileClasspath,testImplementationDependenciesMetadata,testRuntimeClasspath
+org.jetbrains:annotations:13.0=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath,compileClasspath,compileOnly,compileOnlyDependenciesMetadata,default,embeddedKotlin,implementationDependenciesMetadata,kotlinCompilerClasspath,kotlinCompilerPluginClasspath,kotlinKlibCommonizerClasspath,runtimeClasspath,testCompileClasspath,testImplementationDependenciesMetadata,testRuntimeClasspath
 org.junit.jupiter:junit-jupiter-api:5.7.0=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath,compatTestRuntimeOnlyDependenciesMetadata
 org.junit.jupiter:junit-jupiter-engine:5.7.0=compatTestRuntimeClasspath,compatTestRuntimeOnlyDependenciesMetadata
 org.junit.jupiter:junit-jupiter-params:5.7.0=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
@@ -63,7 +128,43 @@ org.junit.platform:junit-platform-commons:1.7.0=compatTestCompileClasspath,compa
 org.junit.platform:junit-platform-engine:1.7.0=compatTestRuntimeClasspath,compatTestRuntimeOnlyDependenciesMetadata
 org.junit.platform:junit-platform-launcher:1.7.0=compatTestRuntimeClasspath,compatTestRuntimeOnlyDependenciesMetadata
 org.junit:junit-bom:5.7.0=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath,compatTestRuntimeOnlyDependenciesMetadata
+org.mortbay.jasper:apache-el:8.5.40=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
 org.opentest4j:opentest4j:1.2.0=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath,compatTestRuntimeOnlyDependenciesMetadata
+org.reactivestreams:reactive-streams:1.0.2=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+org.slf4j:jul-to-slf4j:1.7.28=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
 org.slf4j:slf4j-api:1.7.28=compileClasspath,compileOnly,compileOnlyDependenciesMetadata
 org.slf4j:slf4j-api:1.7.30=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+org.springframework.boot:spring-boot-autoconfigure:2.1.9.RELEASE=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+org.springframework.boot:spring-boot-starter-jetty:2.1.9.RELEASE=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+org.springframework.boot:spring-boot-starter-json:2.1.9.RELEASE=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+org.springframework.boot:spring-boot-starter-logging:2.1.9.RELEASE=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+org.springframework.boot:spring-boot-starter-web:2.1.9.RELEASE=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+org.springframework.boot:spring-boot-starter:2.1.9.RELEASE=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+org.springframework.boot:spring-boot:2.1.9.RELEASE=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+org.springframework:spring-aop:5.1.10.RELEASE=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+org.springframework:spring-beans:5.1.10.RELEASE=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+org.springframework:spring-context:5.1.10.RELEASE=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+org.springframework:spring-core:5.1.10.RELEASE=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+org.springframework:spring-expression:5.1.10.RELEASE=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+org.springframework:spring-jcl:5.1.10.RELEASE=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+org.springframework:spring-web:5.1.10.RELEASE=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+org.springframework:spring-webmvc:5.1.10.RELEASE=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+org.yaml:snakeyaml:1.23=compatTestRuntimeClasspath
+software.amazon.awssdk:annotations:2.7.19=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+software.amazon.awssdk:apache-client:2.7.19=compatTestRuntimeClasspath
+software.amazon.awssdk:auth:2.7.19=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+software.amazon.awssdk:aws-core:2.7.19=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+software.amazon.awssdk:aws-query-protocol:2.7.19=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+software.amazon.awssdk:aws-xml-protocol:2.7.19=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+software.amazon.awssdk:http-client-spi:2.7.19=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+software.amazon.awssdk:netty-nio-client:2.7.19=compatTestRuntimeClasspath
+software.amazon.awssdk:profiles:2.7.19=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+software.amazon.awssdk:protocol-core:2.7.19=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+software.amazon.awssdk:regions:2.7.19=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+software.amazon.awssdk:s3:2.7.19=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+software.amazon.awssdk:sdk-core:2.7.19=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+software.amazon.awssdk:url-connection-client:2.7.19=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+software.amazon.awssdk:utils:2.7.19=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+software.amazon.eventstream:eventstream:1.0.1=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath
+software.amazon.ion:ion-java:1.0.2=compatTestCompileClasspath,compatTestImplementationDependenciesMetadata,compatTestRuntimeClasspath,compileClasspath,default,implementationDependenciesMetadata,runtimeClasspath,testCompileClasspath,testImplementationDependenciesMetadata,testRuntimeClasspath
 empty=annotationProcessor,apiDependenciesMetadata,archives,compatTestAnnotationProcessor,compatTestApiDependenciesMetadata,compatTestCompile,compatTestCompileOnly,compatTestCompileOnlyDependenciesMetadata,compatTestKotlinScriptDef,compatTestKotlinScriptDefExtensions,compatTestRuntime,compile,kotlinNativeCompilerPluginClasspath,kotlinScriptDef,kotlinScriptDefExtensions,runtime,runtimeOnlyDependenciesMetadata,shadow,testAnnotationProcessor,testApiDependenciesMetadata,testCompile,testCompileOnly,testCompileOnlyDependenciesMetadata,testKotlinScriptDef,testKotlinScriptDefExtensions,testRuntime,testRuntimeOnlyDependenciesMetadata
--- a/plugin/src/compatTest/kotlin/org/nixos/gradle2nix/BasicTest.kt
+++ b/plugin/src/compatTest/kotlin/org/nixos/gradle2nix/BasicTest.kt
@@ -4,6 +4,7 @@ import dev.minutest.Tests
 import dev.minutest.experimental.minus
 import dev.minutest.junit.JUnit5Minutests
 import dev.minutest.rootContext
+import dev.minutest.test
 import org.gradle.api.internal.artifacts.dsl.DefaultRepositoryHandler.BINTRAY_JCENTER_URL
 import org.gradle.api.internal.artifacts.dsl.DefaultRepositoryHandler.MAVEN_CENTRAL_URL
 import strikt.api.expectThat
--- a/plugin/src/compatTest/kotlin/org/nixos/gradle2nix/DependencyTest.kt
+++ b/plugin/src/compatTest/kotlin/org/nixos/gradle2nix/DependencyTest.kt
@@ -4,6 +4,7 @@ import dev.minutest.Tests
 import dev.minutest.experimental.minus
 import dev.minutest.junit.JUnit5Minutests
 import dev.minutest.rootContext
+import dev.minutest.test
 import strikt.api.expectThat
 import strikt.assertions.all
 import strikt.assertions.containsExactly
--- a/plugin/src/compatTest/kotlin/org/nixos/gradle2nix/IvyTest.kt
+++ b/plugin/src/compatTest/kotlin/org/nixos/gradle2nix/IvyTest.kt
@@ -3,6 +3,7 @@ package org.nixos.gradle2nix
 import dev.minutest.Tests
 import dev.minutest.junit.JUnit5Minutests
 import dev.minutest.rootContext
+import dev.minutest.test
 import strikt.api.expectThat
 import strikt.assertions.all
 import strikt.assertions.containsExactly
--- a/plugin/src/compatTest/kotlin/org/nixos/gradle2nix/PluginTest.kt
+++ b/plugin/src/compatTest/kotlin/org/nixos/gradle2nix/PluginTest.kt
@@ -5,6 +5,7 @@ import dev.minutest.experimental.FOCUS
 import dev.minutest.experimental.minus
 import dev.minutest.junit.JUnit5Minutests
 import dev.minutest.rootContext
+import dev.minutest.test
 import strikt.api.expectThat
 import strikt.assertions.contains
 import strikt.assertions.containsExactly
--- a/plugin/src/compatTest/kotlin/org/nixos/gradle2nix/S3Test.kt
+++ b/plugin/src/compatTest/kotlin/org/nixos/gradle2nix/S3Test.kt
@@ -0,0 +1,52 @@
+package org.nixos.gradle2nix
+
+import dev.minutest.Tests
+import dev.minutest.junit.JUnit5Minutests
+import dev.minutest.rootContext
+import dev.minutest.test
+import strikt.api.expectThat
+import strikt.assertions.containsExactly
+import strikt.assertions.flatMap
+import strikt.assertions.map
+
+class S3Test : JUnit5Minutests {
+    @Tests
+    fun tests() = rootContext("s3 tests") {
+        withBucket("repositories") {
+            withFixture("s3/maven") {
+
+                test("dependency from s3 maven repo") {
+                    expectThat(build()) {
+                        get("root project dependencies") { rootProject.projectDependencies }.and {
+                            ids.containsExactly(
+                                "org.apache:test:1.0.0@jar",
+                                "org.apache:test:1.0.0@pom"
+                            )
+                            flatMap { it.urls }.containsExactly(
+                                "s3://repositories/m2/org/apache/test/1.0.0/test-1.0.0.jar",
+                                "s3://repositories/m2/org/apache/test/1.0.0/test-1.0.0.pom"
+                            )
+                        }
+                    }
+                }
+            }
+
+            withFixture("s3/maven-snapshot") {
+                test("snapshot dependency from s3 maven repo") {
+                    expectThat(build()) {
+                        get("root project dependencies") { rootProject.projectDependencies }.and {
+                            ids.containsExactly(
+                                "org.apache:test-SNAPSHOT1:2.0.0-SNAPSHOT@jar",
+                                "org.apache:test-SNAPSHOT1:2.0.0-SNAPSHOT@pom"
+                            )
+                            flatMap { it.urls }.containsExactly(
+                                "s3://repositories/m2/org/apache/test-SNAPSHOT1/2.0.0-SNAPSHOT/test-SNAPSHOT1-2.0.0-20070310.181613-3.jar",
+                                "s3://repositories/m2/org/apache/test-SNAPSHOT1/2.0.0-SNAPSHOT/test-SNAPSHOT1-2.0.0-20070310.181613-3.pom"
+                            )
+                        }
+                    }
+                }
+            }
+        }
+    }
+}
--- a/plugin/src/compatTest/kotlin/org/nixos/gradle2nix/SettingsTest.kt
+++ b/plugin/src/compatTest/kotlin/org/nixos/gradle2nix/SettingsTest.kt
@@ -1,8 +1,10 @@
 package org.nixos.gradle2nix

 import dev.minutest.Tests
+import dev.minutest.experimental.minus
 import dev.minutest.junit.JUnit5Minutests
 import dev.minutest.rootContext
+import dev.minutest.test
 import strikt.api.expectThat
 import strikt.assertions.containsExactly

@@ -10,14 +12,25 @@ class SettingsTest : JUnit5Minutests {
    @Tests
    fun tests() = rootContext("settings tests") {
        withRepository("m2") {
+
            withFixture("settings/buildscript") {
                test("resolves settings plugin in buildscript classpath") {
                    expectThat(build()) {
-                        get("settings dependencies") { settingsDependencies }.ids
-                            .containsExactly(
-                                "org.apache:test:1.0.0@jar",
-                                "org.apache:test:1.0.0@pom"
-                            )
+                        get("settings dependencies") { settingsDependencies }.ids.containsExactly(
+                            "org.apache:test:1.0.0@jar",
+                            "org.apache:test:1.0.0@pom"
+                        )
+                    }
+                }
+            }
+
+            withFixture("settings/dependency-resolution-management") {
+                GRADLE_MIN("6.8") - test("uses repositories from settings script") {
+                    expectThat(build()) {
+                        get("root project dependencies") { rootProject.projectDependencies }.ids.containsExactly(
+                            "org.apache:test:1.0.0@jar",
+                            "org.apache:test:1.0.0@pom"
+                        )
                    }
                }
            }
--- a/plugin/src/compatTest/kotlin/org/nixos/gradle2nix/SubprojectsTest.kt
+++ b/plugin/src/compatTest/kotlin/org/nixos/gradle2nix/SubprojectsTest.kt
@@ -3,6 +3,7 @@ package org.nixos.gradle2nix
 import dev.minutest.Tests
 import dev.minutest.junit.JUnit5Minutests
 import dev.minutest.rootContext
+import dev.minutest.test
 import org.gradle.api.internal.artifacts.dsl.DefaultRepositoryHandler.BINTRAY_JCENTER_URL
 import strikt.api.expectThat
 import strikt.assertions.all
--- a/plugin/src/compatTest/kotlin/org/nixos/gradle2nix/TestUtil.kt
+++ b/plugin/src/compatTest/kotlin/org/nixos/gradle2nix/TestUtil.kt
@@ -1,14 +1,22 @@
 package org.nixos.gradle2nix

+import com.adobe.testing.s3mock.S3MockApplication
+import com.adobe.testing.s3mock.junit5.S3MockExtension
+import com.adobe.testing.s3mock.testsupport.common.S3MockStarter
 import com.squareup.moshi.Moshi
 import dev.minutest.ContextBuilder
 import dev.minutest.MinutestFixture
 import dev.minutest.Node
 import dev.minutest.TestContextBuilder
-import dev.minutest.closeableFixture
+import dev.minutest.afterEach
+import dev.minutest.beforeEach
 import dev.minutest.experimental.SKIP
 import dev.minutest.experimental.TransformingAnnotation
+import dev.minutest.given
+import dev.minutest.givenClosable
+import dev.minutest.given_
 import io.javalin.Javalin
+import io.javalin.http.staticfiles.Location
 import okio.buffer
 import okio.source
 import org.gradle.internal.classpath.DefaultClassPath
@@ -21,10 +29,12 @@ import strikt.assertions.map
 import java.io.Closeable
 import java.io.File
 import java.io.StringWriter
-import java.nio.file.Paths
+import java.util.concurrent.atomic.AtomicBoolean

 private val moshi = Moshi.Builder().build()

+val fixtureRoot = File(System.getProperty("fixtures"))
+
 val gradleVersion = System.getProperty("compat.gradle.version")
    ?.let(GradleVersion::version)
    ?: GradleVersion.current()
@@ -65,7 +75,8 @@ fun File.buildKotlin(

 private fun File.build(
    configurations: List<String>,
-    subprojects: List<String>
+    subprojects: List<String>,
+    extraArguments: List<String> = emptyList()
 ): DefaultBuild {
    val log = StringWriter()

@@ -79,7 +90,8 @@ private fun File.build(
            "--init-script=${initscript()}",
            "--stacktrace",
            "-Porg.nixos.gradle2nix.configurations=${configurations.joinToString(",")}",
-            "-Porg.nixos.gradle2nix.subprojects=${subprojects.joinToString(",")}"
+            "-Porg.nixos.gradle2nix.subprojects=${subprojects.joinToString(",")}",
+            *(extraArguments.toTypedArray())
        )
        .runCatching { build() }

@@ -103,15 +115,64 @@ val <T : Iterable<Artifact>> Assertion.Builder<T>.ids: Assertion.Builder<Iterabl

 private fun File.parents() = generateSequence(parentFile) { it.parentFile }

+abstract class ArgumentsSupplier(private val parent: ArgumentsSupplier? = null) {
+    open val arguments: List<String> = emptyList()
+
+    val extraArguments: List<String> get() = (parent?.extraArguments ?: emptyList()) + arguments
+}
+
@MinutestFixture
-class RepositoryFixture(private val server: Javalin) : Closeable {
+class RepositoryFixture(
+    private val server: Javalin,
+    parent: ArgumentsSupplier? = null
+) : ArgumentsSupplier(parent), Closeable {
    override fun close() {
        server.stop()
    }
 }

@MinutestFixture
-class TestFixture(val name: String, val source: File) : Closeable {
+class S3Fixture(
+    private val name: String,
+    parent: ArgumentsSupplier? = null
+) : ArgumentsSupplier(parent), Closeable {
+    private val s3mock = S3Mock(
+        initialBuckets = listOf(name),
+        secureConnection = false
+    )
+
+    override val arguments: List<String> get() = listOf(
+        "-Dorg.gradle.s3.endpoint=${s3mock.serviceEndpoint}",
+        "-Dorg.nixos.gradle2nix.s3test=true"
+    )
+
+    init {
+        s3mock.startServer()
+
+        val s3root = fixtureRoot.resolve(name)
+        val s3client = s3mock.createS3Client()
+        require(s3root.exists() && s3root.isDirectory) {
+            "$name: S3 fixture not found: $s3root"
+        }
+        s3root.walkTopDown()
+            .filter { it.isFile }
+            .forEach { file ->
+                val key = file.toRelativeString(s3root)
+                s3client.putObject(name, key, file)
+            }
+    }
+
+    override fun close() {
+        s3mock.stopServer()
+    }
+}
+
+@MinutestFixture
+class TestFixture(
+    val name: String,
+    val source: File,
+    parent: ArgumentsSupplier? = null
+) : ArgumentsSupplier(parent), Closeable {
    val dest: File

    init {
@@ -127,7 +188,10 @@ class TestFixture(val name: String, val source: File) : Closeable {
 }

@MinutestFixture
-class ProjectFixture(private val parent: TestFixture, private val source: File) : Closeable {
+data class ProjectFixture(
+    private val parent: TestFixture,
+    private val source: File
+) : Closeable {
    private val dest: File

    init {
@@ -138,30 +202,48 @@ class ProjectFixture(private val parent: TestFixture, private val source: File)
        dest = parent.dest.resolve(rel)
    }

-    fun copy() {
+    fun copySource() {
        source.copyRecursively(dest, true)
    }

    fun build(
        configurations: List<String> = emptyList(),
        subprojects: List<String> = emptyList()
-    ) = dest.build(configurations, subprojects)
+    ) = dest.build(configurations, subprojects, parent.extraArguments)

    override fun close() {
        dest.deleteRecursively()
    }
 }

+fun ContextBuilder<*>.withBucket(
+    name: String,
+    block: TestContextBuilder<*, S3Fixture>.() -> Unit
+) = derivedContext<S3Fixture>("with s3 bucket: $name") {
+    given_ { parent ->
+        S3Fixture(name, parent as? ArgumentsSupplier)
+    }
+
+    afterEach { it.close() }
+
+    block()
+}
+
 fun ContextBuilder<*>.withRepository(
    name: String,
    block: TestContextBuilder<*, RepositoryFixture>.() -> Unit
-) = derivedContext<RepositoryFixture>("with repository: ${name}") {
-    closeableFixture {
-        RepositoryFixture(Javalin.create { config ->
-            config.addStaticFiles("/repositories/$name")
-        }.start(9999))
+) = derivedContext<RepositoryFixture>("with repository: $name") {
+    given_ { parent ->
+        RepositoryFixture(
+            server = Javalin.create { config ->
+                config.addStaticFiles("${fixtureRoot}/repositories/$name", Location.EXTERNAL)
+            }.start(9999),
+            parent = parent as? ArgumentsSupplier
+        )
    }

+    afterEach { it.close() }
+
    block()
 }

@@ -169,26 +251,50 @@ fun ContextBuilder<*>.withFixture(
    name: String,
    block: TestContextBuilder<*, ProjectFixture>.() -> Unit
 ) = derivedContext<TestFixture>(name) {
-    val url = checkNotNull(Thread.currentThread().contextClassLoader.getResource(name)?.toURI()) {
-        "$name: No test fixture found"
-    }
-    val fixtureRoot = Paths.get(url).toFile().absoluteFile

-    deriveFixture {
-        TestFixture(name, fixtureRoot)
+    val projectRoot = fixtureRoot.resolve(name).also {
+        check(it.exists()) { "$name: project fixture not found: $it" }
    }

-    val testRoots = fixtureRoot.listFiles()!!
+    given_ { parent ->
+        TestFixture(name, projectRoot, parent as? ArgumentsSupplier)
+    }
+
+    val testRoots = projectRoot.listFiles()!!
        .filter { it.isDirectory }
        .map { it.absoluteFile }
        .toList()

    testRoots.forEach { testRoot ->
        derivedContext<ProjectFixture>(testRoot.name) {
-            deriveFixture { ProjectFixture(this, testRoot) }
-            before { copy() }
-            after { close() }
+            given_ { parent -> ProjectFixture(parent, testRoot) }
+            beforeEach { copySource() }
+            afterEach { close() }
            block()
        }
    }
 }
+
+class S3Mock(
+    initialBuckets: List<String> = emptyList(),
+    secureConnection: Boolean = true
+) : S3MockStarter(
+    mapOf(
+        S3MockApplication.PROP_INITIAL_BUCKETS to initialBuckets.joinToString(","),
+        S3MockApplication.PROP_SECURE_CONNECTION to secureConnection
+    )
+) {
+    private val running = AtomicBoolean()
+
+    fun startServer() {
+        if (running.compareAndSet(false, true)) {
+            start()
+        }
+    }
+
+    fun stopServer() {
+        if (running.compareAndSet(true, false)) {
+            stop()
+        }
+    }
+}
--- a/plugin/src/compatTest/kotlin/org/nixos/gradle2nix/WrapperTest.kt
+++ b/plugin/src/compatTest/kotlin/org/nixos/gradle2nix/WrapperTest.kt
@@ -1,8 +1,10 @@
 package org.nixos.gradle2nix

 import dev.minutest.Tests
+import dev.minutest.given
 import dev.minutest.junit.JUnit5Minutests
 import dev.minutest.rootContext
+import dev.minutest.test
 import strikt.api.expectThat
 import strikt.assertions.isEqualTo
 import java.io.File
@@ -10,7 +12,7 @@ import java.io.File
 class WrapperTest : JUnit5Minutests {
    @Tests
    fun tests() = rootContext<File>("wrapper tests") {
-        fixture { createTempDir("gradle2nix") }
+        given { createTempDir("gradle2nix") }

        test("resolves gradle wrapper version") {
            expectThat(buildKotlin("""
--- a/plugin/src/main/kotlin/org/nixos/gradle2nix/ConfigurationResolver.kt
+++ b/plugin/src/main/kotlin/org/nixos/gradle2nix/ConfigurationResolver.kt
@@ -35,7 +35,7 @@ enum class ConfigurationScope {
 internal class ConfigurationResolverFactory(
    project: Project,
    scope: ConfigurationScope,
-    repositories: RepositoryHandler
+    repositories: List<ResolutionAwareRepository>
 ) {
    private val ivySettings = IvySettings().apply {
        defaultInit()
@@ -49,7 +49,6 @@ internal class ConfigurationResolverFactory(
    }

    private val resolvers = repositories
-        .filterIsInstance<ResolutionAwareRepository>()
        .filterNot { it.createResolver().isLocal }
        .mapNotNull { it.repositoryResolver(project, scope, ivySettings) }

@@ -62,7 +61,7 @@ internal class ConfigurationResolver(
    private val resolvers: List<RepositoryResolver>,
    private val dependencies: DependencyHandler
 ) {
-    private val failed = mutableListOf<ArtifactIdentifier>()
+    private val failed = mutableSetOf<ArtifactIdentifier>()
    private val ivy = Ivy.newInstance(ivySettings)

    val unresolved: List<ArtifactIdentifier> = failed.toList()
--- a/plugin/src/main/kotlin/org/nixos/gradle2nix/Gradle2NixPlugin.kt
+++ b/plugin/src/main/kotlin/org/nixos/gradle2nix/Gradle2NixPlugin.kt
@@ -7,6 +7,7 @@ import org.gradle.api.Task
 import org.gradle.api.artifacts.Configuration
 import org.gradle.api.artifacts.ProjectDependency
 import org.gradle.api.internal.GradleInternal
+import org.gradle.api.internal.artifacts.repositories.ResolutionAwareRepository
 import org.gradle.api.invocation.Gradle
 import org.gradle.api.tasks.TaskContainer
 import org.gradle.api.tasks.wrapper.Wrapper
@@ -132,7 +133,11 @@ private fun Project.buildGradle(): DefaultGradle =
 private fun Project.settingsDependencies(): List<DefaultArtifact> {
    val buildscript = (gradle as GradleInternal).settings.buildscript

-    val resolverFactory = ConfigurationResolverFactory(this, ConfigurationScope.SETTINGS, buildscript.repositories)
+    val resolverFactory = ConfigurationResolverFactory(
+        this,
+        ConfigurationScope.SETTINGS,
+        buildscript.repositories.filterIsInstance<ResolutionAwareRepository>()
+    )
    val resolver = resolverFactory.create(buildscript.dependencies)

    logger.lifecycle("    Settings script")
@@ -208,7 +213,11 @@ private fun Project.buildProject(
 private fun Project.buildscriptDependencies(
    pluginArtifacts: List<DefaultArtifact>
 ): Pair<List<DefaultArtifact>, List<ArtifactIdentifier>> {
-    val resolverFactory = ConfigurationResolverFactory(this, ConfigurationScope.BUILDSCRIPT, buildscript.repositories)
+    val resolverFactory = ConfigurationResolverFactory(
+        this,
+        ConfigurationScope.BUILDSCRIPT,
+        buildscript.repositories.filterIsInstance<ResolutionAwareRepository>()
+    )
    val resolver = resolverFactory.create(buildscript.dependencies)
    val pluginIds = pluginArtifacts.map(DefaultArtifact::id)
    return buildscript.configurations
@@ -221,8 +230,11 @@ private fun Project.buildscriptDependencies(
 private fun Project.projectDependencies(
    explicitConfigurations: List<String>
 ): Pair<List<DefaultArtifact>, List<ArtifactIdentifier>> {
-    val resolverFactory = ConfigurationResolverFactory(this, ConfigurationScope.PROJECT, repositories)
-    val resolver = resolverFactory.create(dependencies)
+    val resolver = ConfigurationResolverFactory(
+        this,
+        ConfigurationScope.PROJECT,
+        RepositoriesCollector.create(project).collectRepositories()
+    ).create(dependencies)
    return collectConfigurations(explicitConfigurations)
        .flatMap(resolver::resolve)
        .distinct()
--- a/plugin/src/main/kotlin/org/nixos/gradle2nix/PluginResolver.kt
+++ b/plugin/src/main/kotlin/org/nixos/gradle2nix/PluginResolver.kt
@@ -1,6 +1,7 @@
 package org.nixos.gradle2nix

 import org.gradle.api.Project
+import org.gradle.api.internal.artifacts.repositories.ResolutionAwareRepository
 import org.gradle.plugin.management.PluginRequest
 import org.gradle.plugin.use.internal.PluginDependencyResolutionServices
 import javax.inject.Inject
@@ -14,7 +15,7 @@ internal open class PluginResolver @Inject constructor(
    private val resolver = ConfigurationResolverFactory(
        project,
        ConfigurationScope.PLUGIN,
-        pluginDependencyResolutionServices.resolveRepositoryHandler
+        pluginDependencyResolutionServices.resolveRepositoryHandler.filterIsInstance<ResolutionAwareRepository>()
    ).create(pluginDependencyResolutionServices.dependencyHandler)

    fun resolve(pluginRequests: List<PluginRequest>): List<DefaultArtifact> {
@@ -28,4 +29,3 @@ internal open class PluginResolver @Inject constructor(
        return resolver.resolve(configurations.detachedConfiguration(*markerDependencies.toTypedArray()))
    }
 }
-
--- a/plugin/src/main/kotlin/org/nixos/gradle2nix/RepositoriesCollector.kt
+++ b/plugin/src/main/kotlin/org/nixos/gradle2nix/RepositoriesCollector.kt
@@ -0,0 +1,37 @@
+package org.nixos.gradle2nix
+
+import org.gradle.api.internal.artifacts.repositories.ResolutionAwareRepository
+import org.gradle.api.Project
+import org.gradle.api.artifacts.dsl.RepositoryHandler
+import org.gradle.api.initialization.dsl.ScriptHandler
+import org.gradle.api.internal.artifacts.RepositoriesSupplier
+import org.gradle.kotlin.dsl.newInstance
+import org.gradle.util.GradleVersion
+import javax.inject.Inject
+
+interface RepositoriesCollector {
+    fun collectRepositories(): List<ResolutionAwareRepository>
+
+    companion object {
+        fun create(project: Project): RepositoriesCollector =
+            if (GradleVersion.current() >= GradleVersion.version("6.8")) {
+                project.objects.newInstance<RepositoriesCollector68>()
+            } else {
+                project.objects.newInstance<RepositoriesCollectorBase>()
+            }
+    }
+}
+
+open class RepositoriesCollectorBase @Inject constructor(
+    private val repositories: RepositoryHandler
+): RepositoriesCollector {
+    override fun collectRepositories(): List<ResolutionAwareRepository> =
+        repositories.filterIsInstance<ResolutionAwareRepository>()
+}
+
+open class RepositoriesCollector68 @Inject constructor(
+    private val repositoriesSupplier: RepositoriesSupplier
+): RepositoriesCollector {
+    override fun collectRepositories(): List<ResolutionAwareRepository> =
+        repositoriesSupplier.get()
+}
--- a/plugin/src/main/kotlin/org/nixos/gradle2nix/RepositoryResolver.kt
+++ b/plugin/src/main/kotlin/org/nixos/gradle2nix/RepositoryResolver.kt
@@ -1,5 +1,7 @@
 package org.nixos.gradle2nix

+import com.amazonaws.auth.BasicAWSCredentials
+import com.amazonaws.auth.BasicSessionCredentials
 import org.apache.ivy.core.LogOptions
 import org.apache.ivy.core.cache.ArtifactOrigin
 import org.apache.ivy.core.cache.CacheResourceOptions
@@ -9,7 +11,12 @@ import org.apache.ivy.core.module.id.ArtifactRevisionId
 import org.apache.ivy.core.module.id.ModuleRevisionId
 import org.apache.ivy.core.resolve.DownloadOptions
 import org.apache.ivy.core.settings.IvySettings
+import org.apache.ivy.core.settings.TimeoutConstraint
+import org.apache.ivy.plugins.repository.Repository
+import org.apache.ivy.plugins.repository.Resource
+import org.apache.ivy.plugins.repository.url.URLRepository
 import org.apache.ivy.plugins.repository.url.URLResource
+import org.apache.ivy.plugins.resolver.AbstractResolver
 import org.apache.ivy.plugins.resolver.IBiblioResolver
 import org.apache.ivy.plugins.resolver.URLResolver
 import org.apache.maven.artifact.repository.metadata.io.xpp3.MetadataXpp3Reader
@@ -17,13 +24,21 @@ import org.codehaus.plexus.util.ReaderFactory
 import org.codehaus.plexus.util.xml.pull.XmlPullParserException
 import org.gradle.api.Project
 import org.gradle.api.artifacts.repositories.ArtifactRepository
+import org.gradle.api.artifacts.repositories.AuthenticationContainer
+import org.gradle.api.artifacts.repositories.AuthenticationSupported
 import org.gradle.api.artifacts.repositories.IvyArtifactRepository
 import org.gradle.api.artifacts.repositories.MavenArtifactRepository
+import org.gradle.api.artifacts.repositories.UrlArtifactRepository
+import org.gradle.api.credentials.AwsCredentials
 import org.gradle.api.internal.artifacts.repositories.ResolutionAwareRepository
 import org.gradle.api.internal.artifacts.repositories.resolver.IvyResolver
 import org.gradle.api.logging.Logger
 import org.gradle.api.logging.Logging
+import org.gradle.authentication.aws.AwsImAuthentication
+import org.gradle.internal.authentication.AllSchemesAuthentication
+import org.gradle.kotlin.dsl.getCredentials
 import java.io.IOException
+import java.net.URI
 import org.apache.ivy.core.module.descriptor.Artifact as IvyArtifact
 import org.apache.ivy.core.module.descriptor.DefaultArtifact as IvyDefaultArtifact
 import org.apache.ivy.plugins.resolver.RepositoryResolver as IvyRepositoryResolver
@@ -66,12 +81,23 @@ internal class MavenResolver(
        isM2compatible = true
        settings = ivySettings
        setCache(cacheManager(project, scope, ivySettings, repository).name)
+        setRepository(resolverRepository(repository))
    }

    override fun resolve(artifactId: DefaultArtifactIdentifier, sha256: String?): DefaultArtifact? {
        val ivyArtifact: IvyArtifact = artifactId.toArtifact()
-        val origin = ivyResolver.locate(ivyArtifact)?.takeIf(ArtifactOrigin::isExists) ?: return null
-        val hash = sha256 ?: ivyResolver.download(origin, downloadOptions).localFile?.sha256() ?: return null
+        val origin = ivyResolver.locate(ivyArtifact)
+        if (origin == null || !origin.isExists) return null
+        val hash = if (sha256 != null) sha256 else {
+            val report = ivyResolver.download(origin, downloadOptions)
+            report.localFile?.sha256().also {
+                if (it == null) log.error(report.toString())
+            }
+        }
+        if (hash == null) {
+            log.error("Failed to download '$artifactId' from repository '${ivyResolver.repository.name}'")
+            return null
+        }
        val snapshotVersion: SnapshotVersion? = artifactId.version.snapshotVersion()?.let {
            findSnapshotVersion(artifactId, it)
        }
@@ -91,9 +117,9 @@ internal class MavenResolver(
        snapshotVersion: SnapshotVersion
    ): SnapshotVersion {
        if (snapshotVersion.timestamp != null) return snapshotVersion
-        val metadataLocation = "${ivyResolver.root}${artifactId.repoPath()}/maven-metadata.xml".toUrl()
+        val metadataLocation = "${ivyResolver.root}${artifactId.repoPath()}/maven-metadata.xml"
        val metadataFile = ivyResolver.repositoryCacheManager.downloadRepositoryResource(
-            URLResource(metadataLocation, ivyResolver.timeoutConstraint),
+            ivyResolver.repository.getResource(metadataLocation),
            "maven-metadata",
            "maven-metadata",
            "xml",
@@ -142,12 +168,22 @@ internal class IvyResolver(
        for (p in ivyResolver.artifactPatterns) addArtifactPattern(p)
        settings = ivySettings
        setCache(cacheManager(project, scope, ivySettings, repository).name)
+        setRepository(resolverRepository(repository))
    }

    override fun resolve(artifactId: DefaultArtifactIdentifier, sha256: String?): DefaultArtifact? {
        val ivyArtifact: IvyArtifact = artifactId.toArtifact()
        val origin = ivyResolver.locate(ivyArtifact)?.takeIf(ArtifactOrigin::isExists) ?: return null
-        val hash = sha256 ?: ivyResolver.download(origin, downloadOptions).localFile?.sha256() ?: return null
+        val hash = if (sha256 != null) sha256 else {
+            val report = ivyResolver.download(origin, downloadOptions)
+            report.localFile?.sha256().also {
+                if (it == null) log.error(report.toString())
+            }
+        }
+        if (hash == null) {
+            log.error("Failed to download '$artifactId' from repository '${ivyResolver.repository.name}'")
+            return null
+        }
        return DefaultArtifact(
            id = DefaultArtifactIdentifier(artifactId),
            name = artifactId.filename(null),
@@ -167,7 +203,9 @@ private fun cacheManager(
    return DefaultRepositoryCacheManager(
        "${scope.name.toLowerCase()}-${repository.name}-cache",
        ivySettings,
-        project.buildDir.resolve("tmp/gradle2nix/${scope.name.toLowerCase()}/${repository.name}")
+        project.buildDir.resolve("tmp/gradle2nix/${repository.name}").also {
+            it.mkdirs()
+        }
    ).also {
        ivySettings.addRepositoryCacheManager(it)
    }
@@ -223,4 +261,57 @@ private fun ArtifactIdentifier.filename(
    append(".", extension)
 }

-private val downloadOptions = DownloadOptions().apply { log = LogOptions.LOG_QUIET }
+private val downloadOptions = DownloadOptions().apply {
+    log = LogOptions.LOG_DEFAULT
+}
+
+private fun <T> AbstractResolver.resolverRepository(
+    repository: T
+) : Repository
+where T : ArtifactRepository,
+      T : AuthenticationSupported =
+    when (val scheme = repository.url.scheme) {
+        "s3" -> s3Repository(
+            repository.getCredentials(AwsCredentials::class),
+            LazyTimeoutConstraint(this)
+        )
+        "http", "https" -> URLRepository(LazyTimeoutConstraint(this))
+        else -> throw IllegalStateException("Unknown repository URL scheme: $scheme")
+    }
+
+private fun s3Repository(
+    credentials: AwsCredentials?,
+    timeoutConstraint: TimeoutConstraint
+): Repository {
+    val awsCredentials = credentials?.let {
+        if (it.sessionToken == null) {
+            BasicAWSCredentials(it.accessKey, it.secretKey)
+        } else {
+            BasicSessionCredentials(it.accessKey, it.secretKey, it.sessionToken)
+        }
+    }
+    return S3Repository(
+        credentials = awsCredentials,
+        endpoint = System.getProperty("org.gradle.s3.endpoint")?.let { URI(it) },
+        timeoutConstraint = timeoutConstraint
+    ).apply {
+        name = "AWS S3"
+    }
+}
+
+private class LazyTimeoutConstraint(
+    private val resolver: AbstractResolver
+) : TimeoutConstraint {
+    override fun getConnectionTimeout(): Int =
+        resolver.timeoutConstraint?.connectionTimeout ?: -1
+
+    override fun getReadTimeout(): Int =
+        resolver.timeoutConstraint?.readTimeout ?: -1
+}
+
+// Compatibility shim as UrlArtifactRepository was added in Gradle 6.0
+private val ArtifactRepository.url: URI get() = when (this) {
+    is MavenArtifactRepository -> url
+    is IvyArtifactRepository -> url
+    else -> throw IllegalStateException("Unhandled repository type: ${this::class.simpleName}")
+}
--- a/plugin/src/main/kotlin/org/nixos/gradle2nix/Util.kt
+++ b/plugin/src/main/kotlin/org/nixos/gradle2nix/Util.kt
@@ -1,6 +1,7 @@
 package org.nixos.gradle2nix

 import java.io.File
+import java.net.URI
 import java.net.URL
 import java.security.MessageDigest

@@ -19,3 +20,5 @@ private fun ByteArray.sha256() = buildString {
 }

 internal fun String.toUrl(): URL = URL(this)
+
+internal fun String.toUri(): URI = URI(this)
--- a/settings.gradle.kts
+++ b/settings.gradle.kts
@@ -1,3 +1,44 @@
+@file:Suppress("UnstableApiUsage")
+
 enableFeaturePreview("ONE_LOCKFILE_PER_PROJECT")

-include(":app", ":model", ":plugin")
+pluginManagement {
+    val shadowVersion: String by settings
+    val stutterVersion: String by settings
+
+    resolutionStrategy {
+        eachPlugin {
+            when (requested.id.id) {
+                "com.github.johnrengelman.shadow" -> useVersion(shadowVersion)
+                "org.ajoberstar.stutter" -> useVersion(stutterVersion)
+            }
+            when (requested.id.namespace) {
+                "org.jetbrains.kotlin",
+                "org.jetbrains.kotlin.plugin" -> useVersion(embeddedKotlinVersion)
+            }
+        }
+    }
+}
+
+plugins {
+    kotlin("jvm") apply false
+    kotlin("kapt") apply false
+    id("com.github.johnrengelman.shadow") apply false
+    id("org.ajoberstar.stutter") apply false
+}
+
+dependencyResolutionManagement {
+    repositories {
+        jcenter()
+        maven { url = uri("https://repo.gradle.org/gradle/libs-releases") }
+    }
+    repositoriesMode.set(RepositoriesMode.PREFER_SETTINGS)
+}
+
+buildscript {
+    configurations.classpath {
+        resolutionStrategy.activateDependencyLocking()
+    }
+}
+
+include(":app", ":ivy", ":model", ":plugin")