Put the files in the right spot for SqlDelight and Kotlin.

Author: mpawliszyn

client-sqldelight-gradle-plugin/src/main/kotlin/app/cash/backfila/client/sqldelight/plugin/BackfilaSqlDelightGradlePlugin.kt

@@ -66,7 +66,7 @@ class BackfilaSqlDelightGradlePlugin : Plugin<Project> {
         it.dependsOn(sqlTask)
         it.backfill.set(backfill.backfill)
         it.packageName.set(packageProvider)
-        it.kotlinDirectory.set(baseKotlinDirectory.map { baseDir -> baseDir.dir(packageProvider.get()) })
+        it.kotlinDirectory.set(baseKotlinDirectory.map { baseDir -> baseDir })
       }
 
       target.kotlinExtension.sourceSets.getByName("main").kotlin.srcDir(kotlinTask)

client-sqldelight-gradle-plugin/src/main/kotlin/app/cash/backfila/client/sqldelight/plugin/GenerateBackfilaRecordSourceSqlTask.kt

@@ -26,8 +26,9 @@ abstract class GenerateBackfilaRecordSourceSqlTask : DefaultTask() {
     val where = backfillConfig.whereClause
     val recordColumns = backfillConfig.recordColumns
     val name = backfillConfig.name.replaceFirstChar { it.uppercase() }
+    val packageDirs = packageName.get().replace('.', File.separatorChar)
 
-    val sqlFile = File(sqlDirectory.get().asFile, "${packageName.get()}/$name.sq")
+    val sqlFile = File(sqlDirectory.get().asFile, "$packageDirs/$name.sq")
     sqlFile.parentFile.mkdirs()
     sqlFile.writeText(
       """