build-logic: introduce versions plugin

3 files changed, 43 insertions, 0 deletions

diff --git a/build-logic/kotlin-plugins/build.gradle.kts b/build-logic/kotlin-plugins/build.gradle.kts
index bfd54dc0..78359ea6 100644
--- a/build-logic/kotlin-plugins/build.gradle.kts
+++ b/build-logic/kotlin-plugins/build.gradle.kts
@@ -50,6 +50,10 @@ gradlePlugin {
       id = "com.github.android-password-store.spotless"
       implementationClass = "dev.msfjarvis.aps.gradle.SpotlessPlugin"
     }
+    register("versions") {
+      id = "com.github.android-password-store.versions"
+      implementationClass = "dev.msfjarvis.aps.gradle.DependencyUpdatesPlugin"
+    }
   }
 }
 
@@ -58,4 +62,6 @@ dependencies {
   implementation(libs.build.binarycompat)
   implementation(libs.build.kotlin)
   implementation(libs.build.spotless)
+  implementation(libs.build.vcu)
+  implementation(libs.build.versions)
 }
diff --git a/build-logic/kotlin-plugins/src/main/kotlin/dev/msfjarvis/aps/gradle/DependencyUpdatesPlugin.kt b/build-logic/kotlin-plugins/src/main/kotlin/dev/msfjarvis/aps/gradle/DependencyUpdatesPlugin.kt
new file mode 100644
index 00000000..e3d6e761
--- /dev/null
+++ b/build-logic/kotlin-plugins/src/main/kotlin/dev/msfjarvis/aps/gradle/DependencyUpdatesPlugin.kt
@@ -0,0 +1,33 @@
+package dev.msfjarvis.aps.gradle
+
+import com.github.benmanes.gradle.versions.VersionsPlugin
+import com.github.benmanes.gradle.versions.updates.DependencyUpdatesTask
+import nl.littlerobots.vcu.plugin.VersionCatalogUpdateExtension
+import nl.littlerobots.vcu.plugin.VersionCatalogUpdatePlugin
+import org.gradle.api.Plugin
+import org.gradle.api.Project
+import org.gradle.kotlin.dsl.apply
+import org.gradle.kotlin.dsl.getByType
+import org.gradle.kotlin.dsl.withType
+
+@Suppress("Unused")
+class DependencyUpdatesPlugin : Plugin<Project> {
+  override fun apply(project: Project) {
+    project.pluginManager.apply(VersionsPlugin::class)
+    project.pluginManager.apply(VersionCatalogUpdatePlugin::class)
+    project.tasks.withType<DependencyUpdatesTask>().configureEach {
+      rejectVersionIf {
+        when (candidate.group) {
+          "commons-codec",
+          "com.android.tools.build",
+          "org.eclipse.jgit" -> true
+          else -> false
+        }
+      }
+      checkForGradleUpdate = false
+    }
+    project.extensions.getByType<VersionCatalogUpdateExtension>().run {
+      keep.keepUnusedLibraries.set(true)
+    }
+  }
+}
diff --git a/build-logic/settings.gradle.kts b/build-logic/settings.gradle.kts
index be6946c3..f4d7dc57 100644
--- a/build-logic/settings.gradle.kts
+++ b/build-logic/settings.gradle.kts
@@ -25,6 +25,10 @@ dependencyResolutionManagement {
         includeGroup("com.google.testing.platform")
       }
     }
+    exclusiveContent {
+      forRepository(::gradlePluginPortal)
+      filter { includeModule("com.github.ben-manes", "gradle-versions-plugin") }
+    }
     mavenCentral()
   }
   versionCatalogs {