From 32249bff321a33f05611c0de979def6244f7b18b Mon Sep 17 00:00:00 2001
From: Igor Artamonov <igor@artamonov.ru>
Date: Wed, 18 Mar 2020 21:09:59 -0400
Subject: [PATCH] solution: banner on run

---
 build.gradle                                  | 21 +++++++++++++++++++
 .../dshackle/DshackleEnvironment.kt           |  5 +++--
 .../kotlin/io/emeraldpay/dshackle/Starter.kt  |  3 +++
 src/main/resources/banner.txt                 |  9 ++++++++
 4 files changed, 36 insertions(+), 2 deletions(-)
 create mode 100644 src/main/resources/banner.txt

diff --git a/build.gradle b/build.gradle
index c1e7daff..15cd2de3 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,6 +1,7 @@
 import java.time.Instant
 import java.time.ZoneId
 import java.time.format.DateTimeFormatter
+import java.time.temporal.ChronoUnit
 
 buildscript {
     repositories {
@@ -23,6 +24,7 @@ plugins {
     id "com.google.cloud.tools.jib" version "1.3.0"
     id 'org.springframework.boot' version '2.1.4.RELEASE'
     id 'io.spring.dependency-management' version '1.0.6.RELEASE'
+    id 'com.palantir.git-version' version '0.12.2'
 }
 
 
@@ -161,4 +163,23 @@ jar {
 
 afterEvaluate {
     distZip.dependsOn(jar)
+    compileKotlin.dependsOn(generateVersion)
+}
+
+task generateVersion()  {
+    group = 'Build'
+    description = 'Generate project version'
+
+    doLast {
+        def version = versionDetails()
+        def resourcesDir = sourceSets.main.output.resourcesDir
+        new File(resourcesDir, "version.properties").text = [
+                "# AUTOMATICALLY GENERATED",
+                "version.app=$project.version",
+                "version.commit=${version.gitHash}",
+                "version.tag=${version.lastTag}",
+                "version.date=${DateTimeFormatter.ISO_LOCAL_DATE_TIME.withZone(ZoneId.of('UTC')).format(Instant.now().truncatedTo(ChronoUnit.SECONDS))} UTC"
+        ].join("\n")
+
+    }
 }
\ No newline at end of file
diff --git a/src/main/kotlin/io/emeraldpay/dshackle/DshackleEnvironment.kt b/src/main/kotlin/io/emeraldpay/dshackle/DshackleEnvironment.kt
index c8d6b200..a5d782a3 100644
--- a/src/main/kotlin/io/emeraldpay/dshackle/DshackleEnvironment.kt
+++ b/src/main/kotlin/io/emeraldpay/dshackle/DshackleEnvironment.kt
@@ -20,8 +20,10 @@ import org.springframework.beans.factory.config.YamlPropertiesFactoryBean
 import org.springframework.core.env.*
 import org.springframework.core.io.FileSystemResource
 import org.springframework.core.io.Resource
+import org.springframework.core.io.support.ResourcePropertySource
 import java.io.File
 import java.util.*
+import javax.annotation.PostConstruct
 
 const val DEFAULT_CONFIG = "/etc/dshackle/dshackle.yaml"
 const val LOCAL_CONFIG = "./dshackle.yaml"
@@ -32,10 +34,10 @@ open class DshackleEnvironment: StandardEnvironment() {
         private val log = LoggerFactory.getLogger(DshackleEnvironment::class.java)
     }
 
-
     override fun customizePropertySources(propertySources: MutablePropertySources) {
         super.customizePropertySources(propertySources)
         propertySources.addLast(mainConfig())
+        propertySources.addLast(ResourcePropertySource("version.properties"))
     }
 
     open fun mainConfig(): PropertySource<*> {
@@ -48,7 +50,6 @@ open class DshackleEnvironment: StandardEnvironment() {
             }
         }
         target = target.normalize()
-        log.info("Load configuration from: ${target.absolutePath}")
         val loadedProperties = this.loadYaml(FileSystemResource(target))
         loadedProperties["configPath"] = target.absolutePath
         return PropertiesPropertySource("mainConfig", loadedProperties)
diff --git a/src/main/kotlin/io/emeraldpay/dshackle/Starter.kt b/src/main/kotlin/io/emeraldpay/dshackle/Starter.kt
index 525d6eaf..90ea7b9c 100644
--- a/src/main/kotlin/io/emeraldpay/dshackle/Starter.kt
+++ b/src/main/kotlin/io/emeraldpay/dshackle/Starter.kt
@@ -16,9 +16,11 @@
 package io.emeraldpay.dshackle
 
 import org.slf4j.LoggerFactory
+import org.springframework.boot.ResourceBanner
 import org.springframework.boot.SpringApplication
 import org.springframework.boot.autoconfigure.SpringBootApplication
 import org.springframework.context.annotation.Import
+import org.springframework.core.io.ClassPathResource
 
 @SpringBootApplication(scanBasePackages = [ "io.emeraldpay.dshackle" ])
 @Import(Config::class)
@@ -29,5 +31,6 @@ private val log = LoggerFactory.getLogger(Starter::class.java)
 fun main(args: Array<String>) {
     val app = SpringApplication(Starter::class.java)
     app.setEnvironment(DshackleEnvironment())
+    app.setBanner(ResourceBanner(ClassPathResource("banner.txt")))
     app.run(*args)
 }
\ No newline at end of file
diff --git a/src/main/resources/banner.txt b/src/main/resources/banner.txt
new file mode 100644
index 00000000..a52dbfaa
--- /dev/null
+++ b/src/main/resources/banner.txt
@@ -0,0 +1,9 @@
+                                _     _     __ _     _                _    _
+                               | |   | |   / /| |   | |              | |  | |
+   ___ _ __ ___   ___ _ __ __ _| | __| |  / /_| |___| |__   __ _  ___| | _| | ___
+  / _ \ '_ ` _ \ / _ \ '__/ _` | |/ _` | / / _` / __| '_ \ / _` |/ __| |/ / |/ _ \
+ |  __/ | | | | |  __/ | | (_| | | (_| |/ / (_| \__ \ | | | (_| | (__|   <| |  __/
+  \___|_| |_| |_|\___|_|  \__,_|_|\__,_/_/ \__,_|___/_| |_|\__,_|\___|_|\_\_|\___|
+   Emerald Dshackle - Smart Load Balancer for Blockchain API
+   https://github.com/emeraldpay/dshackle
+   v${version.app} built from ${version.commit} on ${version.date}