From 4a15cdccb8529f33d34b848567a543a5db6f28b0 Mon Sep 17 00:00:00 2001
From: Tobias Preuss <tobias.preuss@googlemail.com>
Date: Wed, 21 Oct 2020 22:04:04 +0200
Subject: [PATCH] Use gradle-versions-plugin to check for dependency updates.

+ This plugin adds the "dependencyUpdates" Gradle task.
+ Configure to only offer stable versions.
+ Plugin website: https://github.com/ben-manes/gradle-versions-plugin
---
 build.gradle           |  3 +++
 gradle/versions.gradle | 14 ++++++++++++++
 2 files changed, 17 insertions(+)
 create mode 100644 gradle/versions.gradle

diff --git a/build.gradle b/build.gradle
index 3d21e77..c646a46 100644
--- a/build.gradle
+++ b/build.gradle
@@ -3,8 +3,11 @@ plugins {
     id "idea"
     id "org.jetbrains.intellij" version "0.4.13"
     id "com.github.johnrengelman.shadow" version "5.1.0"
+    id "com.github.ben-manes.versions" version "0.33.0"
 }
 
+apply from: "gradle/versions.gradle"
+
 sourceCompatibility = javaVersion
 targetCompatibility = javaVersion
 
diff --git a/gradle/versions.gradle b/gradle/versions.gradle
new file mode 100644
index 0000000..11ec4bf
--- /dev/null
+++ b/gradle/versions.gradle
@@ -0,0 +1,14 @@
+// Gradle Versions Plugin
+
+tasks.named("dependencyUpdates").configure {
+    def isNonStable = { String version ->
+        def stableKeyword = ["RELEASE", "FINAL", "GA"].any {
+            qualifier -> version.toUpperCase().contains(qualifier)
+        }
+        def regex = /^[0-9,.v-]+(-r)?$/
+        return !stableKeyword && !(version ==~ regex)
+    }
+    rejectVersionIf {
+        isNonStable(it.candidate.version)
+    }
+}