feat(build): add back dependency updates plugin

2 files changed, 39 insertions, 0 deletions

diff --git a/build-logic/build.gradle.kts b/build-logic/build.gradle.kts
index 877d6752..4917fc8c 100644
--- a/build-logic/build.gradle.kts
+++ b/build-logic/build.gradle.kts
@@ -65,6 +65,10 @@ gradlePlugin {
       id = "com.github.android-password-store.versioning-plugin"
       implementationClass = "app.passwordstore.gradle.versioning.VersioningPlugin"
     }
+    register("versions") {
+      id = "com.github.android-password-store.versions"
+      implementationClass = "app.passwordstore.gradle.DependencyUpdatesPlugin"
+    }
   }
 }
 
@@ -84,6 +88,7 @@ dependencies {
   implementation(libs.build.r8)
   implementation(libs.build.semver)
   implementation(libs.build.sentry)
+  implementation(libs.build.vcu)
   implementation(libs.kotlinx.coroutines.core)
 
   // Expose the generated version catalog API to the plugin.
diff --git a/build-logic/src/main/kotlin/app/passwordstore/gradle/DependencyUpdatesPlugin.kt b/build-logic/src/main/kotlin/app/passwordstore/gradle/DependencyUpdatesPlugin.kt
new file mode 100644
index 00000000..cac23ee2
--- /dev/null
+++ b/build-logic/src/main/kotlin/app/passwordstore/gradle/DependencyUpdatesPlugin.kt
@@ -0,0 +1,34 @@
+/*
+ * Copyright © 2014-2021 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+package app.passwordstore.gradle
+
+import com.github.zafarkhaja.semver.Version
+import kotlin.jvm.optionals.getOrNull
+import nl.littlerobots.vcu.plugin.VersionCatalogUpdateExtension
+import nl.littlerobots.vcu.plugin.VersionCatalogUpdatePlugin
+import nl.littlerobots.vcu.plugin.versionSelector
+import org.gradle.api.Plugin
+import org.gradle.api.Project
+import org.gradle.kotlin.dsl.apply
+import org.gradle.kotlin.dsl.configure
+
+@Suppress("Unused")
+class DependencyUpdatesPlugin : Plugin<Project> {
+  override fun apply(project: Project) {
+    project.pluginManager.apply(VersionCatalogUpdatePlugin::class)
+    project.extensions.configure<VersionCatalogUpdateExtension> {
+      keep.keepUnusedLibraries.set(true)
+      versionSelector {
+        val currentVersion = Version.tryParse(it.currentVersion).getOrNull()
+        val newVersion = Version.tryParse(it.candidate.version).getOrNull()
+        if (currentVersion == null || newVersion == null) {
+          false
+        } else {
+          newVersion.isHigherThan(currentVersion)
+        }
+      }
+    }
+  }
+}