1 files changed, 38 insertions, 2 deletions

diff --git a/buildSrc/src/main/kotlin/tools/refinery/gradle/internal/java-conventions.gradle.kts b/buildSrc/src/main/kotlin/tools/refinery/gradle/internal/java-conventions.gradle.kts
index a370d6b7..bed2bfdc 100644
--- a/buildSrc/src/main/kotlin/tools/refinery/gradle/internal/java-conventions.gradle.kts
+++ b/buildSrc/src/main/kotlin/tools/refinery/gradle/internal/java-conventions.gradle.kts
@@ -7,7 +7,6 @@ package tools.refinery.gradle.internal
 
 import org.gradle.accessors.dm.LibrariesForLibs
 import org.gradle.configurationcache.extensions.capitalized
-import org.gradle.plugins.ide.eclipse.model.ProjectDependency
 import tools.refinery.gradle.utils.EclipseUtils
 
 plugins {
@@ -156,6 +155,43 @@ tasks {
         }
 }
 
+fun collectDependentProjects(configuration: Configuration, dependentProjects: MutableCollection<Project>) {
+        for (dependency in configuration.dependencies) {
+                if (dependency is ProjectDependency) {
+                        val dependentProject = dependency.dependencyProject
+                        if (dependentProject.plugins.hasPlugin(JavaPlugin::class) && dependentProjects.add(dependentProject)) {
+                                collectDependentProjectsTransitively(dependentProject, dependentProjects)
+                        }
+                }
+        }
+}
+
+fun collectDependentProjectsTransitively(dependentProject: Project, dependentProjects: MutableCollection<Project>) {
+        val apiConfiguration = dependentProject.configurations.findByName("api")
+        if (apiConfiguration != null) {
+                collectDependentProjects(apiConfiguration, dependentProjects)
+        }
+        collectDependentProjects(configurations.implementation.get(), dependentProjects)
+}
+
+gradle.projectsEvaluated {
+        tasks.javadoc {
+                val dependentProjects = HashSet<Project>()
+                collectDependentProjectsTransitively(project, dependentProjects)
+                val links = ArrayList<JavadocOfflineLink>()
+                for (dependentProject in dependentProjects) {
+                        dependsOn(dependentProject.tasks.javadoc)
+                        val javadocDir = dependentProject.layout.buildDirectory.map { it.dir("docs/javadoc") }
+                        inputs.dir(javadocDir)
+                        links += JavadocOfflineLink("../${dependentProject.name}", javadocDir.get().asFile.path)
+                }
+                options {
+                        this as StandardJavadocDocletOptions
+                        linksOffline = (linksOffline ?: listOf()) + links
+                }
+        }
+}
+
 signing {
         // The underlying property cannot be set publicly.
         @Suppress("UsePropertyAccessSyntax")
@@ -175,7 +211,7 @@ eclipse {
                 // If a project has a main dependency on a project and a test dependency on the testFixtures of a project,
                 // it will be erroneously added as a test-only dependency to Eclipse. As a workaround, we add all project
                 // dependencies as main dependencies (we do not deliberately use test-only project dependencies).
-                if (entry is ProjectDependency) {
+                if (entry is org.gradle.plugins.ide.eclipse.model.ProjectDependency) {
                         entry.entryAttributes.remove("test")
                 }
         }