LTS: firmware matcher needs to learn to migrate

#5015

relevant helper method

java_console/shared_io/build.gradle

@@ -2,5 +2,11 @@ plugins {
     id 'java'
 }
 
+apply from: '../../android/dependencies.gradle'
+
 // TODO: rename folder to core_io
-// this CORE module cannot depend on model/ini!
+// this CORE module cannot depend on model/ini!
+
+dependencies {
+    testImplementation global_libs.junit
+}

java_console/shared_io/src/main/java/com/rusefi/core/io/BundleUtil.java

@@ -35,4 +35,13 @@ public class BundleUtil {
         bundle = bundle == null ? "unknown bundle" : bundle;
         return bundle;
     }
+
+    public static String getBundleTarget(String s) {
+        if (s == null)
+            return null;
+        int lastDot = s.lastIndexOf('.');
+        if (lastDot == -1)
+            throw new IllegalStateException("Dot expected somewhere in [" + s + "]");
+        return s.substring(lastDot + 1);
+    }
 }

java_console/shared_io/src/test/java/com/rusefi/core/io/BundleUtilTest.java

@@ -0,0 +1,12 @@
+package com.rusefi.core.io;
+
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+
+public class BundleUtilTest {
+    @Test
+    public void testExtractBundleTarget() {
+        assertEquals("proteus_f7", BundleUtil.getBundleTarget("rusefi.snapshot.proteus_f7"));
+    }
+}