It happned again,

also add metadata

gradle2nix doesnt put the 1.3.0 version of the forms library, so I had to add it to the gradle-env.json myself

pkgs/JAVMovieScraper/default.nix

@@ -27,6 +27,14 @@ buildGradle {
     cat ./bin/source | sed 's~$JAVA_HOME~${openjdk11}~' > $out/bin/JAVMovieScraper
     chmod +x $out/bin/JAVMovieScraper
   '';
+
+  meta = with pkgs.stdenv.lib; {
+    broken = true;
+     description = "A program to fetch metadata for Japanese Adult Video";
+     homepage = "https://github.com/DoctorD1501/JAVMovieScraper";
+     license = licenses.gpl2;
+  };
+
 }
 
 

pkgs/JAVMovieScraper/gradle-env.nix

@@ -19,7 +19,7 @@
 #         '';
 #       }
 
-{ stdenv, lib, buildEnv, fetchurl, gradleGen, writeText }:
+{ stdenv, buildEnv, fetchurl, gradleGen, writeText, writeTextDir }:
 
 { envSpec
 , pname ? null
@@ -27,9 +27,18 @@
 , enableParallelBuilding ? true
 , gradleFlags ? [ "build" ]
 , gradlePackage ? null
+, enableDebug ? false
 , ... } @ args:
 
 let
+  inherit (builtins)
+    filter sort replaceStrings attrValues match fromJSON
+    concatStringsSep;
+
+  inherit (stdenv.lib)
+    versionOlder unique mapAttrs last concatMapStringsSep removeSuffix
+    optionalString groupBy' readFile hasSuffix;
+
   mkDep = depSpec: stdenv.mkDerivation {
     inherit (depSpec) name;
 
@@ -41,40 +50,171 @@ let
 
     installPhase = ''
       mkdir -p $out/${depSpec.path}
-      ln -s $src $out/${depSpec.path}/${depSpec.filename}
+      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;
+    paths = map mkDep deps ++ mkModuleMetadata deps ++ mkSnapshotMetadata deps;
   };
 
   mkInitScript = projectSpec:
     let
-      repos = builtins.mapAttrs (mkRepo projectSpec.name) projectSpec.dependencies;
+      repos = mapAttrs (mkRepo projectSpec.name) projectSpec.dependencies;
     in
       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()
+                }
+            }
+        }
+
         gradle.settingsEvaluated {
-          it.pluginManagement.repositories {
+            offlineRepo(it.pluginManagement.repositories, "plugin", "${repos.plugin}")
-            clear()
-            maven { url = uri("${repos.plugin}") }
-          }
         }
 
         gradle.projectsLoaded {
-          allprojects {
+            allprojects {
-            buildscript {
+                buildscript {
-              repositories {
+                    offlineRepo(repositories, "buildscript", "${repos.buildscript}")
-                clear()
+                }
-                maven { url = uri("${repos.buildscript}") }
+                offlineRepo(repositories, "project", "${repos.project}")
-              }
             }
-            repositories {
-              clear()
-              maven { url = uri("${repos.project}") }
-            }
-          }
         }
       '';
 
@@ -95,9 +235,9 @@ let
     gradle = args.gradlePackage or mkGradle projectSpec.gradle;
   };
 
-  gradleEnv = builtins.mapAttrs
+  gradleEnv = mapAttrs
     (_: p: mkProjectEnv p)
-    (builtins.fromJSON (builtins.readFile envSpec));
+    (fromJSON (readFile envSpec));
 
   projectEnv = gradleEnv."";
   pname = args.pname or projectEnv.name;
@@ -118,9 +258,10 @@ in stdenv.mkDerivation (args // {
       "GRADLE_USER_HOME=$(mktemp -d)" \
       gradle --offline --no-daemon --no-build-cache \
         --info --full-stacktrace --warning-mode=all \
-        ${lib.optionalString enableParallelBuilding "--parallel"} \
+        ${optionalString enableParallelBuilding "--parallel"} \
+        ${optionalString enableDebug "-Dorg.gradle.debug=true"} \
         --init-script ${projectEnv.initScript} \
-        ${builtins.concatStringsSep " " gradleFlags}
+        ${concatStringsSep " " gradleFlags}
     )
 
     runHook postBuild