refactor: show manifest info when starting app

src/main/kotlin/br/ufpe/liber/Application.kt

@@ -2,6 +2,8 @@ package br.ufpe.liber
 
 import io.micronaut.context.env.Environment
 import io.micronaut.kotlin.runtime.startApplication
+import org.slf4j.LoggerFactory
+import java.util.Properties
 
 // DO NOT EDIT: this file is automatically synced from the template repository
 // in https://github.com/Liber-UFPE/project-starter.
@@ -11,9 +13,17 @@ object Application {
     @Suppress("detekt:SpreadOperator")
     fun main(args: Array<String>) {
         startApplication<Application>(*args) {
+            val logger = LoggerFactory.getLogger(Application.javaClass)
             // Fallback to dev environment if none is specified.
             environments(System.getenv().getOrDefault("MICRONAUT_ENVIRONMENTS", Environment.DEVELOPMENT))
             eagerInitAnnotated(EagerInProduction::class.java)
+            resourceLoader.getResource("META-INF/MANIFEST.MF").ifPresent { url ->
+                val properties = Properties()
+                url.openStream().use { inputStream -> properties.load(inputStream) }
+                for ((name, value) in properties) {
+                    logger.info("Manifest property $name: $value")
+                }
+            }
         }
     }
 }