Introduce DB migration by flyway

build.sbt

@@ -20,7 +20,9 @@ lazy val core = (project in file("./scala-todo-core"))
     name := "Scala Todo Core",
     libraryDependencies ++= Seq(
       "com.typesafe.slick" %% "slick" % "3.2.1",
+      "com.typesafe.slick" %% "slick-hikaricp" % "3.2.1",
       "com.h2database" % "h2" % "1.4.194",
+      "org.flywaydb" % "flyway-core" % "4.2.0",
       "org.slf4j" % "slf4j-nop" % "1.7.10" % Test
     )
   )

scala-todo-core/src/main/resources/db/migration/V1__init.sql

@@ -0,0 +1,5 @@
+CREATE TABLE "TODOS" (
+  "ID" BIGINT NOT NULL PRIMARY KEY AUTO_INCREMENT,
+  "DESCRIPTION" VARCHAR NOT NULL,
+  "DONE" BOOLEAN DEFAULT false NOT NULL
+)

scala-todo-core/src/main/resources/slick.conf

@@ -1,6 +1,4 @@
-h2mem = {
-  url = "jdbc:h2:mem:todo"
+h2 = {
+  url = "jdbc:h2:~/temp/todo"
   driver = org.h2.Driver
-  connectionPool = disabled
-  keepAliveConnection = true
 }

scala-todo-core/src/main/scala/nacam403/todo/core/DatabaseManager.scala

@@ -1,17 +1,22 @@
 package nacam403.todo.core
 
 import com.typesafe.config.ConfigFactory
+import org.flywaydb.core.Flyway
 import slick.jdbc.H2Profile.api._
 
-import scala.concurrent.Await
-import scala.concurrent.duration.Duration
-
 object DatabaseManager {
 
-  val db = Database.forConfig("h2mem", ConfigFactory.load("slick"))
+  val config = ConfigFactory.load("slick").getConfig("h2")
+  val db = Database.forConfig("", config)
 
   def migrate() = {
-    Await.result(db.run(TodoTable.schema.create), Duration.Inf)
+    val url = config.getString("url")
+    val user = if (config.hasPath("user")) config.getString("user") else null
+    val password = if (config.hasPath("password")) config.getString("password") else null
+
+    val flyway = new Flyway
+    flyway.setDataSource(url, user, password)
+    flyway.migrate()
   }
 
   def close() = db.close()

scala-todo-core/src/test/resources/slick.conf

@@ -0,0 +1,4 @@
+h2 = {
+  url = "jdbc:h2:mem:todo"
+  driver = org.h2.Driver
+}