re-added json minifier

build.gradle

@@ -166,4 +166,29 @@ publishing {
             url "file:///${project.projectDir}/mcmodsrepo"
         }
     }
-}
+}
+
+processResources {
+    doLast {
+
+        def jsonMinifyStart = System.currentTimeMillis()
+        def jsonMinified = 0
+        def jsonBytesSaved = 0
+
+        fileTree(dir: outputs.files.asPath, include: '**/*.json').each {
+
+            File file = it
+            jsonMinified++
+            def oldLength = file.length()
+            try {
+                file.text = JsonOutput.toJson(new JsonSlurper().parse(file))
+            } catch(JsonException e) {
+                throw new JsonException("Failed to parse json in " + file.path)
+            }
+            file.text = JsonOutput.toJson(new JsonSlurper().parse(file))
+            jsonBytesSaved += oldLength - file.length()
+        }
+
+        println('Minified ' + jsonMinified + ' json files. Saved ' + jsonBytesSaved + ' bytes. Took ' + (System.currentTimeMillis() - jsonMinifyStart) + 'ms.')
+    }
+}