jooq does not generate models with testcontainers in gradle task - gradle

Question

I wrote a gradle task to generate jooq models from a postgresql testcontainer. After starting the container, I run migrations using flyway and then the jooq GenerationTool.
The relevant part of my build.gradle.kts looks like this:
buildscript {
repositories {
mavenLocal()
mavenCentral()
}
dependencies {
classpath("org.jooq:jooq-codegen:3.17.4")
classpath("org.postgresql:postgresql:42.5.0")
classpath("org.testcontainers:postgresql:1.17.3")
classpath("org.flywaydb:flyway-core:9.3.0")
}
}
task("jooqGenerate") {
doLast {
PostgreSQLContainer<Nothing>("postgres:14.3")
.apply { start() }
.use { pgContainer ->
val flyway = Flyway(
FluentConfiguration()
.locations("filesystem:src/main/resources/db/migration")
.baselineOnMigrate(true)
.dataSource(pgContainer.jdbcUrl, pgContainer.username, pgContainer.password)
)
flyway.migrate()
GenerationTool.generate(
Configuration()
.withJdbc(
Jdbc()
.withDriver(pgContainer.driverClassName)
.withUrl(pgContainer.jdbcUrl)
.withUser(pgContainer.username)
.withPassword(pgContainer.password)
)
.withGenerator(
Generator()
.withDatabase(Database().withInputSchema("public"))
.withGenerate(Generate().withPojosAsKotlinDataClasses(true))
.withTarget(
Target()
.withPackageName("co.selim.nemrut.jooq")
.withDirectory("src/main/java")
)
)
)
}
}
}
When I run ./gradlew jooqGenerate I can see that flyway finds the migrations and runs them, jooq logs a bunch of warnings but no code is being generated in src/main/java. What am I missing?
I have also created a reproducer here: https://github.com/wowselim/nemrut

Answer 1

Turns out the target config from the official docs didn't work for me.
When I added the projectDir prefix it started to work.
Target()
.withPackageName("co.selim.nemrut.jooq")
.withDirectory("${projectDir}/src/main/java")