java based merging?

.gitattributes

@@ -1 +1,2 @@
 *.java   diff=java
+#*.java merge=import-driver #TODO not implemented, I'm just using a merge tool instead

.gitconfig

@@ -0,0 +1,3 @@
+[merge "import-driver"]
+	name = Java merge driver used to resolve conflicts
+	driver = merge-imports.sh %O %A %B %L %P

build.gradle.kts

@@ -85,9 +85,9 @@ if (!project.hasProperty("gitCommitHash")) {
     }
 }
 
-buildScan {
+//buildScan {
-    setTermsOfServiceUrl("https://gradle.com/terms-of-service")
+//    setTermsOfServiceUrl("https://gradle.com/terms-of-service")
-    setTermsOfServiceAgree("yes")
+//    setTermsOfServiceAgree("yes")
-
+//
-    publishAlways()
+//    publishAlways()
-}
+//}

gradle.properties

@@ -1,8 +1,8 @@
 group=com.sk89q.worldedit
 #version=7.1.0-SNAPSHOT
 
-org.gradle.jvmargs=-Xmx1G
+#org.gradle.jvmargs=-Xmx1G
-#org.gradle.jvmargs=-Xmx4g -XX:MaxPermSize=2048m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
+org.gradle.jvmargs=-Xmx4g -XX:MaxPermSize=2048m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
 org.gradle.daemon=true
 org.gradle.configureondemand=true
 org.gradle.parallel=true

merge-imports.sh

@@ -0,0 +1,3 @@
+javac merge/Merge.java
+java -cp merge Merge "$1" "$2" "$3" "$4" "$5"
+exit $?

merge/Merge.java

@@ -0,0 +1,36 @@
+import java.awt.Desktop;
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.FileReader;
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+
+public class Merge {
+    public static void main(String[] args) throws IOException {
+        File ancestor = new File(args[0]);
+        File current = new File(args[1]);
+        File other = new File(args[2]);
+        int markerLenth = Integer.parseInt(args[3]);
+        File original = new File(args[4]);
+
+        // HOWTO:
+        //  1. Add contents of .gitconfig to your local .git/config
+        //  2. This script will run for any merge conflicts
+
+        // TODO auto resolve merge conflicts in `current`
+        //  - imports
+
+        boolean failed = true;
+        if (failed) {
+            System.exit(1); // Auto merge failed
+        }
+    }
+
+    private static String read(File file) throws IOException {
+        byte[] encoded = Files.readAllBytes(file.toPath());
+        return new String(encoded, StandardCharsets.UTF_8);
+    }
+}