Resolve and apply settings buildscript dependencies

app/src/dist/share/gradle-env.nix

@@ -32,12 +32,12 @@
 
 let
   inherit (builtins)
-    filter sort replaceStrings attrValues match fromJSON
+    attrValues concatStringsSep filter fromJSON match replaceStrings sort;
-    concatStringsSep;
 
   inherit (stdenv.lib)
-    versionOlder unique mapAttrs mapAttrsToList last concatMapStringsSep
+    assertMsg concatMapStringsSep groupBy' hasSuffix last mapAttrs
-    removeSuffix optionalString groupBy' readFile hasSuffix;
+    mapAttrsToList optionalString readFile removeSuffix unique versionAtLeast
+    versionOlder;
 
   mkDep = depSpec: stdenv.mkDerivation {
     inherit (depSpec) name;
@@ -176,10 +176,20 @@ let
     paths = map mkDep deps ++ mkModuleMetadata deps ++ mkSnapshotMetadata deps;
   };
 
-  mkInitScript = projectSpec:
+  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()
@@ -204,18 +214,35 @@ let
             }
         }
 
-        gradle.settingsEvaluated {
+        ${optionalString (hasDependencies.settings && (versionAtLeast gradle.version "6.0")) ''
-            offlineRepo(it.pluginManagement.repositories, "plugin", "${repos.plugin}")
+          gradle.beforeSettings {
-        }
+              offlineRepo(it.buildscript.repositories, "settings", "${repos.settings}")
+          }
+        ''}
 
-        gradle.projectsLoaded {
+        ${optionalString (hasDependencies.plugin) ''
-            allprojects {
+          gradle.settingsEvaluated {
-                buildscript {
+              offlineRepo(it.pluginManagement.repositories, "plugin", "${repos.plugin}")
-                    offlineRepo(repositories, "buildscript", "${repos.buildscript}")
+          }
-                }
+        ''}
-                offlineRepo(repositories, "project", "${repos.project}")
+
-            }
+        ${optionalString (hasDependencies.buildscript) ''
-        }
+          gradle.projectsLoaded {
+              allprojects {
+                  buildscript {
+                      offlineRepo(repositories, "buildscript", "${repos.buildscript}")
+                  }
+              }
+          }
+        ''}
+
+        ${optionalString (hasDependencies.project) ''
+          gradle.projectsLoaded {
+              allprojects {
+                  offlineRepo(repositories, "project", "${repos.project}")
+              }
+          }
+        ''}
       '';
 
   mkGradle = gradleSpec:
@@ -227,12 +254,14 @@ let
       src = fetchurl {
         inherit (gradleSpec) url sha256;
       };
+    } // {
+      inherit (gradleSpec) version;
     };
 
-  mkProjectEnv = projectSpec: {
+  mkProjectEnv = projectSpec: rec {
     inherit (projectSpec) name path version;
-    initScript = mkInitScript projectSpec;
     gradle = args.gradlePackage or mkGradle projectSpec.gradle;
+    initScript = mkInitScript projectSpec gradle;
   };
 
   gradleEnv = mapAttrs

app/src/main/kotlin/org/nixos/gradle2nix/Env.kt

@@ -19,6 +19,7 @@ fun buildEnv(builds: Map<String, DefaultBuild>): Map<String, NixGradleEnv> =
             path = path,
             gradle = build.gradle,
             dependencies = mapOf(
+                "settings" to build.settingsDependencies,
                 "plugin" to build.pluginDependencies,
                 "buildscript" to build.rootProject.collectDependencies(DefaultProject::buildscriptDependencies),
                 "project" to build.rootProject.collectDependencies(DefaultProject::projectDependencies)

fixtures/integration/settings-buildscript/groovy/build.gradle

@@ -0,0 +1 @@
+version = '1.1.0'

fixtures/integration/settings-buildscript/groovy/default.nix

@@ -0,0 +1,9 @@
+with (import <nixpkgs> {});
+let
+  buildGradle = callPackage ./gradle-env.nix {};
+in
+  buildGradle {
+    envSpec = ./gradle-env.json;
+    src = ./.;
+    gradleFlags = [ "tasks" ];
+  }

fixtures/integration/settings-buildscript/groovy/gradle-env.json

@@ -0,0 +1,456 @@
+{
+  "": {
+    "name": "settings-buildscript",
+    "version": "1.1.0",
+    "path": "",
+    "gradle": {
+      "version": "5.0",
+      "type": "bin",
+      "url": "https://services.gradle.org/distributions/gradle-5.0-bin.zip",
+      "sha256": "6157ac9f3410bc63644625b3b3e9e96c963afd7910ae0697792db57813ee79a6",
+      "nativeVersion": "0.14"
+    },
+    "dependencies": {
+      "settings": [
+        {
+          "id": {
+            "group": "com.googlecode.javaewah",
+            "name": "JavaEWAH",
+            "version": "1.1.6",
+            "type": "jar",
+            "extension": "jar"
+          },
+          "name": "JavaEWAH-1.1.6.jar",
+          "path": "com/googlecode/javaewah/JavaEWAH/1.1.6",
+          "urls": [
+            "https://plugins.gradle.org/m2/com/googlecode/javaewah/JavaEWAH/1.1.6/JavaEWAH-1.1.6.jar"
+          ],
+          "sha256": "f78d44a1e3877f1ce748b4a85df5171e5e8e9a5c3c6f63bb9003db6f84cce952"
+        },
+        {
+          "id": {
+            "group": "com.googlecode.javaewah",
+            "name": "JavaEWAH",
+            "version": "1.1.6",
+            "type": "pom",
+            "extension": "pom"
+          },
+          "name": "JavaEWAH-1.1.6.pom",
+          "path": "com/googlecode/javaewah/JavaEWAH/1.1.6",
+          "urls": [
+            "https://plugins.gradle.org/m2/com/googlecode/javaewah/JavaEWAH/1.1.6/JavaEWAH-1.1.6.pom"
+          ],
+          "sha256": "7f4ff919b1ee17bf3776e058a3f20e6173db23a5e44cf2d107ec7570c186abf0"
+        },
+        {
+          "id": {
+            "group": "com.jcraft",
+            "name": "jsch",
+            "version": "0.1.54",
+            "type": "jar",
+            "extension": "jar"
+          },
+          "name": "jsch-0.1.54.jar",
+          "path": "com/jcraft/jsch/0.1.54",
+          "urls": [
+            "https://plugins.gradle.org/m2/com/jcraft/jsch/0.1.54/jsch-0.1.54.jar"
+          ],
+          "sha256": "92eb273a3316762478fdd4fe03a0ce1842c56f496c9c12fe1235db80450e1fdb"
+        },
+        {
+          "id": {
+            "group": "com.jcraft",
+            "name": "jsch",
+            "version": "0.1.54",
+            "type": "pom",
+            "extension": "pom"
+          },
+          "name": "jsch-0.1.54.pom",
+          "path": "com/jcraft/jsch/0.1.54",
+          "urls": [
+            "https://plugins.gradle.org/m2/com/jcraft/jsch/0.1.54/jsch-0.1.54.pom"
+          ],
+          "sha256": "ab8f512039be7f6ae20e18e743b4a9d8a20958494431917da58ae5aaef8a3478"
+        },
+        {
+          "id": {
+            "group": "commons-codec",
+            "name": "commons-codec",
+            "version": "1.6",
+            "type": "jar",
+            "extension": "jar"
+          },
+          "name": "commons-codec-1.6.jar",
+          "path": "commons-codec/commons-codec/1.6",
+          "urls": [
+            "https://plugins.gradle.org/m2/commons-codec/commons-codec/1.6/commons-codec-1.6.jar"
+          ],
+          "sha256": "54b34e941b8e1414bd3e40d736efd3481772dc26db3296f6aa45cec9f6203d86"
+        },
+        {
+          "id": {
+            "group": "commons-codec",
+            "name": "commons-codec",
+            "version": "1.6",
+            "type": "pom",
+            "extension": "pom"
+          },
+          "name": "commons-codec-1.6.pom",
+          "path": "commons-codec/commons-codec/1.6",
+          "urls": [
+            "https://plugins.gradle.org/m2/commons-codec/commons-codec/1.6/commons-codec-1.6.pom"
+          ],
+          "sha256": "a06e35d3fff3a6b813d94894ebf3e498f9540c864c5b39ae783907e3a6c72889"
+        },
+        {
+          "id": {
+            "group": "commons-logging",
+            "name": "commons-logging",
+            "version": "1.1.3",
+            "type": "jar",
+            "extension": "jar"
+          },
+          "name": "commons-logging-1.1.3.jar",
+          "path": "commons-logging/commons-logging/1.1.3",
+          "urls": [
+            "https://plugins.gradle.org/m2/commons-logging/commons-logging/1.1.3/commons-logging-1.1.3.jar"
+          ],
+          "sha256": "70903f6fc82e9908c8da9f20443f61d90f0870a312642991fe8462a0b9391784"
+        },
+        {
+          "id": {
+            "group": "commons-logging",
+            "name": "commons-logging",
+            "version": "1.1.3",
+            "type": "pom",
+            "extension": "pom"
+          },
+          "name": "commons-logging-1.1.3.pom",
+          "path": "commons-logging/commons-logging/1.1.3",
+          "urls": [
+            "https://plugins.gradle.org/m2/commons-logging/commons-logging/1.1.3/commons-logging-1.1.3.pom"
+          ],
+          "sha256": "3250ac3ac6bd60ed0631f5cd0335032b2993d63e405a6ae0555d27a7e4865849"
+        },
+        {
+          "id": {
+            "group": "gradle.plugin.net.vivin",
+            "name": "gradle-semantic-build-versioning",
+            "version": "4.0.0",
+            "type": "jar",
+            "extension": "jar"
+          },
+          "name": "gradle-semantic-build-versioning-4.0.0.jar",
+          "path": "gradle/plugin/net/vivin/gradle-semantic-build-versioning/4.0.0",
+          "urls": [
+            "https://plugins.gradle.org/m2/gradle/plugin/net/vivin/gradle-semantic-build-versioning/4.0.0/gradle-semantic-build-versioning-4.0.0.jar"
+          ],
+          "sha256": "5138e67ce8e019437800b93c9f6f9d0fcbebefadc96fbc4ebc0975c99a261ef8"
+        },
+        {
+          "id": {
+            "group": "gradle.plugin.net.vivin",
+            "name": "gradle-semantic-build-versioning",
+            "version": "4.0.0",
+            "type": "pom",
+            "extension": "pom"
+          },
+          "name": "gradle-semantic-build-versioning-4.0.0.pom",
+          "path": "gradle/plugin/net/vivin/gradle-semantic-build-versioning/4.0.0",
+          "urls": [
+            "https://plugins.gradle.org/m2/gradle/plugin/net/vivin/gradle-semantic-build-versioning/4.0.0/gradle-semantic-build-versioning-4.0.0.pom"
+          ],
+          "sha256": "4f2828741607ed102d95eb5f189d496c7840ed463acea89f1e51a60567714ef7"
+        },
+        {
+          "id": {
+            "group": "org.apache",
+            "name": "apache",
+            "version": "9",
+            "type": "pom",
+            "extension": "pom"
+          },
+          "name": "apache-9.pom",
+          "path": "org/apache/apache/9",
+          "urls": [
+            "https://plugins.gradle.org/m2/org/apache/apache/9/apache-9.pom"
+          ],
+          "sha256": "4946e60a547c8eda69f3bc23c5b6f0dadcf8469ea49b1d1da7de34aecfcf18dd"
+        },
+        {
+          "id": {
+            "group": "org.apache",
+            "name": "apache",
+            "version": "13",
+            "type": "pom",
+            "extension": "pom"
+          },
+          "name": "apache-13.pom",
+          "path": "org/apache/apache/13",
+          "urls": [
+            "https://plugins.gradle.org/m2/org/apache/apache/13/apache-13.pom"
+          ],
+          "sha256": "ff513db0361fd41237bef4784968bc15aae478d4ec0a9496f811072ccaf3841d"
+        },
+        {
+          "id": {
+            "group": "org.apache.commons",
+            "name": "commons-parent",
+            "version": "22",
+            "type": "pom",
+            "extension": "pom"
+          },
+          "name": "commons-parent-22.pom",
+          "path": "org/apache/commons/commons-parent/22",
+          "urls": [
+            "https://plugins.gradle.org/m2/org/apache/commons/commons-parent/22/commons-parent-22.pom"
+          ],
+          "sha256": "fb8c5e55e30a7addb4ff210858a0e8d2494ed6757bbe19012da99d51586c3cbb"
+        },
+        {
+          "id": {
+            "group": "org.apache.commons",
+            "name": "commons-parent",
+            "version": "28",
+            "type": "pom",
+            "extension": "pom"
+          },
+          "name": "commons-parent-28.pom",
+          "path": "org/apache/commons/commons-parent/28",
+          "urls": [
+            "https://plugins.gradle.org/m2/org/apache/commons/commons-parent/28/commons-parent-28.pom"
+          ],
+          "sha256": "14733a68e8b120b69de60cd96d222146dcf32f03c1c6cc6a750b1269bafe86c7"
+        },
+        {
+          "id": {
+            "group": "org.apache.httpcomponents",
+            "name": "httpclient",
+            "version": "4.3.6",
+            "type": "jar",
+            "extension": "jar"
+          },
+          "name": "httpclient-4.3.6.jar",
+          "path": "org/apache/httpcomponents/httpclient/4.3.6",
+          "urls": [
+            "https://plugins.gradle.org/m2/org/apache/httpcomponents/httpclient/4.3.6/httpclient-4.3.6.jar"
+          ],
+          "sha256": "79838d9eaef73d4f852c63a480830c3a2d4b590f0ab3ae815a489463e4714004"
+        },
+        {
+          "id": {
+            "group": "org.apache.httpcomponents",
+            "name": "httpclient",
+            "version": "4.3.6",
+            "type": "pom",
+            "extension": "pom"
+          },
+          "name": "httpclient-4.3.6.pom",
+          "path": "org/apache/httpcomponents/httpclient/4.3.6",
+          "urls": [
+            "https://plugins.gradle.org/m2/org/apache/httpcomponents/httpclient/4.3.6/httpclient-4.3.6.pom"
+          ],
+          "sha256": "d02634f6131e914961c02aa836711ebac72704b27e26c5bd223bbad89b1b64c3"
+        },
+        {
+          "id": {
+            "group": "org.apache.httpcomponents",
+            "name": "httpcomponents-client",
+            "version": "4.3.6",
+            "type": "pom",
+            "extension": "pom"
+          },
+          "name": "httpcomponents-client-4.3.6.pom",
+          "path": "org/apache/httpcomponents/httpcomponents-client/4.3.6",
+          "urls": [
+            "https://plugins.gradle.org/m2/org/apache/httpcomponents/httpcomponents-client/4.3.6/httpcomponents-client-4.3.6.pom"
+          ],
+          "sha256": "4ada2827b496339826891c7c81dceba647029de6fc1888b16b3cab5650abcc63"
+        },
+        {
+          "id": {
+            "group": "org.apache.httpcomponents",
+            "name": "httpcomponents-core",
+            "version": "4.3.3",
+            "type": "pom",
+            "extension": "pom"
+          },
+          "name": "httpcomponents-core-4.3.3.pom",
+          "path": "org/apache/httpcomponents/httpcomponents-core/4.3.3",
+          "urls": [
+            "https://plugins.gradle.org/m2/org/apache/httpcomponents/httpcomponents-core/4.3.3/httpcomponents-core-4.3.3.pom"
+          ],
+          "sha256": "c16e2fc0d49ba7a02cef5b5e2600585a9f673553328a6f9e58f24296df1dd031"
+        },
+        {
+          "id": {
+            "group": "org.apache.httpcomponents",
+            "name": "httpcore",
+            "version": "4.3.3",
+            "type": "jar",
+            "extension": "jar"
+          },
+          "name": "httpcore-4.3.3.jar",
+          "path": "org/apache/httpcomponents/httpcore/4.3.3",
+          "urls": [
+            "https://plugins.gradle.org/m2/org/apache/httpcomponents/httpcore/4.3.3/httpcore-4.3.3.jar"
+          ],
+          "sha256": "5285de80af1651c489313b91a9f40c65a4cdcb6b3bde716fcc028d16869a5a93"
+        },
+        {
+          "id": {
+            "group": "org.apache.httpcomponents",
+            "name": "httpcore",
+            "version": "4.3.3",
+            "type": "pom",
+            "extension": "pom"
+          },
+          "name": "httpcore-4.3.3.pom",
+          "path": "org/apache/httpcomponents/httpcore/4.3.3",
+          "urls": [
+            "https://plugins.gradle.org/m2/org/apache/httpcomponents/httpcore/4.3.3/httpcore-4.3.3.pom"
+          ],
+          "sha256": "b427f7cf67c75a4e3f9e2108d35bf45303573c145ec778fcadcffacef17a1264"
+        },
+        {
+          "id": {
+            "group": "org.apache.httpcomponents",
+            "name": "project",
+            "version": "7",
+            "type": "pom",
+            "extension": "pom"
+          },
+          "name": "project-7.pom",
+          "path": "org/apache/httpcomponents/project/7",
+          "urls": [
+            "https://plugins.gradle.org/m2/org/apache/httpcomponents/project/7/project-7.pom"
+          ],
+          "sha256": "3d6eba428555a558de046b5d76eacc1f5a54b4f5f20b84d636ed7aff18aa48c3"
+        },
+        {
+          "id": {
+            "group": "org.eclipse.jgit",
+            "name": "org.eclipse.jgit",
+            "version": "4.8.0.201706111038-r",
+            "type": "jar",
+            "extension": "jar"
+          },
+          "name": "org.eclipse.jgit-4.8.0.201706111038-r.jar",
+          "path": "org/eclipse/jgit/org.eclipse.jgit/4.8.0.201706111038-r",
+          "urls": [
+            "https://plugins.gradle.org/m2/org/eclipse/jgit/org.eclipse.jgit/4.8.0.201706111038-r/org.eclipse.jgit-4.8.0.201706111038-r.jar"
+          ],
+          "sha256": "49d912e8d5cce0dd08dca3d390189db8692a8f7e3363cdbbe182581462000aba"
+        },
+        {
+          "id": {
+            "group": "org.eclipse.jgit",
+            "name": "org.eclipse.jgit",
+            "version": "4.8.0.201706111038-r",
+            "type": "pom",
+            "extension": "pom"
+          },
+          "name": "org.eclipse.jgit-4.8.0.201706111038-r.pom",
+          "path": "org/eclipse/jgit/org.eclipse.jgit/4.8.0.201706111038-r",
+          "urls": [
+            "https://plugins.gradle.org/m2/org/eclipse/jgit/org.eclipse.jgit/4.8.0.201706111038-r/org.eclipse.jgit-4.8.0.201706111038-r.pom"
+          ],
+          "sha256": "a556a9f5adfc6af49b2a12e72dc3cd7e43db8fdc216c0f35885972a2f5ada27d"
+        },
+        {
+          "id": {
+            "group": "org.eclipse.jgit",
+            "name": "org.eclipse.jgit-parent",
+            "version": "4.8.0.201706111038-r",
+            "type": "pom",
+            "extension": "pom"
+          },
+          "name": "org.eclipse.jgit-parent-4.8.0.201706111038-r.pom",
+          "path": "org/eclipse/jgit/org.eclipse.jgit-parent/4.8.0.201706111038-r",
+          "urls": [
+            "https://plugins.gradle.org/m2/org/eclipse/jgit/org.eclipse.jgit-parent/4.8.0.201706111038-r/org.eclipse.jgit-parent-4.8.0.201706111038-r.pom"
+          ],
+          "sha256": "396a4cc894206873ff107d066a996252b0b47f585b88cf57fc3b31e93d492878"
+        },
+        {
+          "id": {
+            "group": "org.slf4j",
+            "name": "slf4j-api",
+            "version": "1.7.2",
+            "type": "jar",
+            "extension": "jar"
+          },
+          "name": "slf4j-api-1.7.2.jar",
+          "path": "org/slf4j/slf4j-api/1.7.2",
+          "urls": [
+            "https://plugins.gradle.org/m2/org/slf4j/slf4j-api/1.7.2/slf4j-api-1.7.2.jar"
+          ],
+          "sha256": "3bae789b401333b2a1d1603b7fa573e19908628191707203f6eb708cdee2c052"
+        },
+        {
+          "id": {
+            "group": "org.slf4j",
+            "name": "slf4j-api",
+            "version": "1.7.2",
+            "type": "pom",
+            "extension": "pom"
+          },
+          "name": "slf4j-api-1.7.2.pom",
+          "path": "org/slf4j/slf4j-api/1.7.2",
+          "urls": [
+            "https://plugins.gradle.org/m2/org/slf4j/slf4j-api/1.7.2/slf4j-api-1.7.2.pom"
+          ],
+          "sha256": "2eaca71afe0a1516f4abd8e9ff907838d268f38c81c3a542cce8d7f3b87c5d4c"
+        },
+        {
+          "id": {
+            "group": "org.slf4j",
+            "name": "slf4j-parent",
+            "version": "1.7.2",
+            "type": "pom",
+            "extension": "pom"
+          },
+          "name": "slf4j-parent-1.7.2.pom",
+          "path": "org/slf4j/slf4j-parent/1.7.2",
+          "urls": [
+            "https://plugins.gradle.org/m2/org/slf4j/slf4j-parent/1.7.2/slf4j-parent-1.7.2.pom"
+          ],
+          "sha256": "1d8e084a6f2384ade42685332b52a0ece090478641dc14c0fa8c52e1e2984425"
+        },
+        {
+          "id": {
+            "group": "org.sonatype.oss",
+            "name": "oss-parent",
+            "version": "5",
+            "type": "pom",
+            "extension": "pom"
+          },
+          "name": "oss-parent-5.pom",
+          "path": "org/sonatype/oss/oss-parent/5",
+          "urls": [
+            "https://plugins.gradle.org/m2/org/sonatype/oss/oss-parent/5/oss-parent-5.pom"
+          ],
+          "sha256": "1678d4120a585d8a630131aeec4c524d928398583b7eab616ee7d5a87f520d3d"
+        },
+        {
+          "id": {
+            "group": "org.sonatype.oss",
+            "name": "oss-parent",
+            "version": "6",
+            "type": "pom",
+            "extension": "pom"
+          },
+          "name": "oss-parent-6.pom",
+          "path": "org/sonatype/oss/oss-parent/6",
+          "urls": [
+            "https://plugins.gradle.org/m2/org/sonatype/oss/oss-parent/6/oss-parent-6.pom"
+          ],
+          "sha256": "b4306d13e8f5392458a1b30866f1cff161b3d2e6999a88d059eea3932c8a8499"
+        }
+      ],
+      "plugin": [],
+      "buildscript": [],
+      "project": []
+    }
+  }
+}

fixtures/integration/settings-buildscript/groovy/gradle-env.nix

@@ -0,0 +1,318 @@
+# 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 }:
+
+{ envSpec
+, pname ? null
+, version ? null
+, enableParallelBuilding ? true
+, gradleFlags ? [ "build" ]
+, gradlePackage ? null
+, enableDebug ? false
+, ... } @ 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}")
+              }
+          }
+        ''}
+      '';
+
+  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"} \
+      --init-script ${env.initScript} \
+      ${optionalString (env.path != "") ''-p "${env.path}"''} \
+      ${concatStringsSep " " flags}
+  '';
+
+  buildIncludedProjects =
+    concatStringsSep "\n" (mapAttrsToList
+      (_: env: buildProject env [ "build" ])
+      (removeAttrs gradleEnv [ "" ]));
+
+  buildRootProject = buildProject projectEnv gradleFlags;
+
+in stdenv.mkDerivation (args // {
+
+  inherit pname version;
+
+  nativeBuildInputs = (args.nativeBuildInputs or []) ++ [ projectEnv.gradle ];
+
+  buildPhase = args.buildPhase or ''
+    runHook preBuild
+
+    (
+    set -x
+
+    # use the init script here
+    TMPHOME=$(mktemp -d)
+    mkdir -p $TMPHOME/init.d
+    cp ${projectEnv.initScript} $TMPHOME/init.d
+
+    export "GRADLE_USER_HOME=$TMPHOME"
+    ${buildIncludedProjects}
+    ${buildRootProject}
+    )
+
+    runHook postBuild
+  '';
+
+  dontStrip = true;
+})

fixtures/integration/settings-buildscript/groovy/semantic-build-versioning.gradle

@@ -0,0 +1 @@
+startingVersion = '1.0.0'

fixtures/integration/settings-buildscript/groovy/settings.gradle

@@ -0,0 +1,14 @@
+buildscript {
+    repositories {
+        maven {
+            url 'https://plugins.gradle.org/m2/'
+        }
+    }
+    dependencies {
+        classpath 'gradle.plugin.net.vivin:gradle-semantic-build-versioning:4.0.0'
+    }
+}
+
+rootProject.name = "settings-buildscript"
+
+//apply plugin: 'net.vivin.gradle-semantic-build-versioning'

fixtures/repositories/m2/org/apache/test/1.0.0/test-1.0.0.pom

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>org.apache</groupId>
+    <artifactId>test</artifactId>
+    <version>1.0.0</version>
+
+    <name>test</name>
+
+    <description>
+        test
+    </description>
+</project>

fixtures/repositories/m2/org/hdrhistogram/HdrHistogram/2.1.12/HdrHistogram-2.1.12.jar.sha1

@@ -1 +0,0 @@
-6eb7552156e0d517ae80cc2247be1427c8d90452

fixtures/repositories/m2/org/hdrhistogram/HdrHistogram/2.1.12/HdrHistogram-2.1.12.pom.sha1

@@ -1 +0,0 @@
-9797702ee3e52e4be6bfbbc9fd20ac5447e7a541

fixtures/settings/buildscript/groovy/settings.gradle

@@ -0,0 +1,10 @@
+buildscript {
+    repositories {
+        maven {
+            url 'http://localhost:9999/'
+        }
+    }
+    dependencies {
+        classpath 'org.apache:test:1.0.0'
+    }
+}

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

@@ -8,12 +8,14 @@ import java.lang.IllegalArgumentException
 @JsonClass(generateAdapter = true)
 data class DefaultBuild(
     override val gradle: DefaultGradle,
+    override val settingsDependencies: List<DefaultArtifact>,
     override val pluginDependencies: List<DefaultArtifact>,
     override val rootProject: DefaultProject,
     override val includedBuilds: List<DefaultIncludedBuild>
 ) : Build, Serializable {
     constructor(model: Build) : this(
         DefaultGradle(model.gradle),
+        model.settingsDependencies.map(::DefaultArtifact),
         model.pluginDependencies.map(::DefaultArtifact),
         DefaultProject(model.rootProject),
         model.includedBuilds.map(::DefaultIncludedBuild)

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

@@ -2,6 +2,7 @@ package org.nixos.gradle2nix
 
 interface Build {
     val gradle: Gradle
+    val settingsDependencies: List<Artifact>
     val pluginDependencies: List<Artifact>
     val rootProject: Project
     val includedBuilds: List<IncludedBuild>

plugin/src/compatTest/kotlin/org/nixos/gradle2nix/PluginTest.kt

@@ -1,10 +1,13 @@
 package org.nixos.gradle2nix
 
 import dev.minutest.Tests
+import dev.minutest.experimental.FOCUS
+import dev.minutest.experimental.minus
 import dev.minutest.junit.JUnit5Minutests
 import dev.minutest.rootContext
 import strikt.api.expectThat
 import strikt.assertions.contains
+import strikt.assertions.containsExactly
 
 class PluginTest : JUnit5Minutests {
     @Tests

plugin/src/compatTest/kotlin/org/nixos/gradle2nix/SettingsTest.kt

@@ -0,0 +1,26 @@
+package org.nixos.gradle2nix
+
+import dev.minutest.Tests
+import dev.minutest.junit.JUnit5Minutests
+import dev.minutest.rootContext
+import strikt.api.expectThat
+import strikt.assertions.containsExactly
+
+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"
+                            )
+                    }
+                }
+            }
+        }
+    }
+}

plugin/src/compatTest/kotlin/org/nixos/gradle2nix/TestUtil.kt

@@ -168,29 +168,27 @@ fun ContextBuilder<*>.withRepository(
 fun ContextBuilder<*>.withFixture(
     name: String,
     block: TestContextBuilder<*, ProjectFixture>.() -> Unit
-) {
+) = derivedContext<TestFixture>(name) {
-    derivedContext<TestFixture>(name) {
+    val url = checkNotNull(Thread.currentThread().contextClassLoader.getResource(name)?.toURI()) {
-        val url = checkNotNull(Thread.currentThread().contextClassLoader.getResource(name)?.toURI()) {
+        "$name: No test fixture found"
-            "$name: No test fixture found"
+    }
-        }
+    val fixtureRoot = Paths.get(url).toFile().absoluteFile
-        val fixtureRoot = Paths.get(url).toFile().absoluteFile
 
-        deriveFixture {
+    deriveFixture {
-            TestFixture(name, fixtureRoot)
+        TestFixture(name, fixtureRoot)
-        }
+    }
 
-        val testRoots = fixtureRoot.listFiles()!!
+    val testRoots = fixtureRoot.listFiles()!!
-            .filter { it.isDirectory }
+        .filter { it.isDirectory }
-            .map { it.absoluteFile }
+        .map { it.absoluteFile }
-            .toList()
+        .toList()
 
-        testRoots.forEach { testRoot ->
+    testRoots.forEach { testRoot ->
-            derivedContext<ProjectFixture>(testRoot.name) {
+        derivedContext<ProjectFixture>(testRoot.name) {
-                deriveFixture { ProjectFixture(this, testRoot) }
+            deriveFixture { ProjectFixture(this, testRoot) }
-                before { copy() }
+            before { copy() }
-                after { close() }
+            after { close() }
-                block()
+            block()
-            }
         }
     }
 }

plugin/src/main/kotlin/org/nixos/gradle2nix/ConfigurationResolver.kt

@@ -28,7 +28,8 @@ import org.gradle.util.GradleVersion
 enum class ConfigurationScope {
     BUILDSCRIPT,
     PLUGIN,
-    PROJECT
+    PROJECT,
+    SETTINGS
 }
 
 internal class ConfigurationResolverFactory(

plugin/src/main/kotlin/org/nixos/gradle2nix/Gradle2NixPlugin.kt

@@ -6,6 +6,7 @@ import org.gradle.api.Project
 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.invocation.Gradle
 import org.gradle.api.tasks.TaskContainer
 import org.gradle.api.tasks.wrapper.Wrapper
@@ -85,6 +86,7 @@ private fun Project.buildModel(
     modelProperties: ModelProperties,
     pluginRequests: List<PluginRequest>
 ): DefaultBuild {
+    val settingsDependencies = settingsDependencies()
     val plugins = buildPlugins(pluginRequests)
 
     val subprojects = if (modelProperties.subprojects.isEmpty()) {
@@ -99,6 +101,7 @@ private fun Project.buildModel(
 
     return DefaultBuild(
         gradle = buildGradle(),
+        settingsDependencies = settingsDependencies,
         pluginDependencies = plugins,
         rootProject = buildProject(modelProperties.configurations, subprojects, plugins),
         includedBuilds = includedBuilds()
@@ -126,6 +129,31 @@ 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 resolver = resolverFactory.create(buildscript.dependencies)
+
+    logger.lifecycle("    Settings script")
+
+    val dependencies = buildscript.configurations
+        .flatMap(resolver::resolve)
+        .distinct()
+        .sorted()
+
+    if (resolver.unresolved.isNotEmpty()) {
+        logger.warn(buildString {
+            append("        Failed to resolve settings script dependencies:\n")
+            for (id in resolver.unresolved) {
+                append("        - $id\n")
+            }
+        })
+    }
+
+    return dependencies
+}
+
 private fun Project.buildPlugins(pluginRequests: List<PluginRequest>): List<DefaultArtifact> {
     return objects.newInstance<PluginResolver>(this).resolve(pluginRequests).distinct().sorted()
 }