Apply fixup migration only from previous version

modules/store/src/main/scala/docspell/store/migrate/FlywayMigrate.scala

@@ -6,6 +6,7 @@
 
 package docspell.store.migrate
 
+import cats.data.OptionT
 import cats.effect.Sync
 import cats.implicits._
 
@@ -59,11 +60,16 @@ class FlywayMigrate[F[_]: Sync](jdbc: JdbcConfig, xa: Transactor[F]) {
       case true =>
         ().pure[F]
       case false =>
-        for {
-          fw <- createFlyway(MigrationKind.Fixups)
-          _ <- logger.info(s"!!! Running fixup migrations")
-          _ <- Sync[F].blocking(fw.migrate())
-        } yield ()
+        (for {
+          current <- OptionT(getSchemaVersion)
+          _ <- OptionT
+            .fromOption[F](versionComponents(current))
+            .filter(v => v._1 >= 1 && v._2 >= 33)
+          fw <- OptionT.liftF(createFlyway(MigrationKind.Fixups))
+          _ <- OptionT.liftF(logger.info(s"!!! Running fixup migrations"))
+          _ <- OptionT.liftF(Sync[F].blocking(fw.migrate()))
+        } yield ())
+          .getOrElseF(logger.info(s"Fixup migrations not applied."))
     }
 
   private def isSchemaEmpty: F[Boolean] =
@@ -73,6 +79,19 @@ class FlywayMigrate[F[_]: Sync](jdbc: JdbcConfig, xa: Transactor[F]) {
       .attemptSql
       .transact(xa)
       .map(_.isLeft)
+
+  private def getSchemaVersion: F[Option[String]] =
+    sql"select version from flyway_schema_history where success = true order by installed_rank desc limit 1"
+      .query[String]
+      .option
+      .transact(xa)
+
+  private def versionComponents(v: String): Option[(Int, Int, Int)] =
+    v.split('.').toList.map(_.toIntOption) match {
+      case Some(a) :: Some(b) :: Some(c) :: Nil =>
+        Some((a, b, c))
+      case _ => None
+    }
 }
 
 object FlywayMigrate {

modules/store/src/test/scala/docspell/store/StoreFixture.scala

@@ -97,4 +97,20 @@ object StoreFixture {
       store = new StoreImpl[IO](fr, jdbc, ds, xa)
       _ <- Resource.eval(store.migrate)
     } yield store
+
+  def restoreH2Dump(resourceName: String, ds: DataSource): IO[Unit] =
+    Option(getClass.getResource(resourceName)).map(_.getFile) match {
+      case Some(file) =>
+        IO {
+          org.log4s.getLogger.info(s"Restoring dump from $file")
+          val stmt = ds.getConnection.createStatement()
+          val sql = s"RUNSCRIPT FROM '$file'"
+          stmt.execute(sql)
+          stmt.close()
+        }
+
+      case None =>
+        IO.raiseError(new Exception(s"Resource not found: $resourceName"))
+    }
+
 }

modules/store/src/test/scala/docspell/store/migrate/H2MigrateTest.scala

@@ -29,4 +29,21 @@ class H2MigrateTest extends FunSuite with TestLoggingConfig {
     // a second time to apply fixup migrations
     assert(result.unsafeRunSync().migrationsExecuted == 0)
   }
+
+  test("h2 upgrade db from 0.24.0") {
+    val dump = "/docspell-0.24.0-dump-h2-1.24.0-2021-07-13-2307.sql"
+
+    val jdbc = StoreFixture.memoryDB("h2test2")
+    val ds = StoreFixture.dataSource(jdbc)
+
+    ds.use(StoreFixture.restoreH2Dump(dump, _)).unsafeRunSync()
+
+    val result =
+      ds.flatMap(StoreFixture.makeXA).use { xa =>
+        FlywayMigrate[IO](jdbc, xa).run
+      }
+
+    result.unsafeRunSync()
+    result.unsafeRunSync()
+  }
 }