[Client] graphqlGenerateClient doesn't seem to update/overwrite generated classes after query file changed

[sid-logic]

Library Version
graphql-kotlin: 5.0.0-alpha.3
gradle: 6.8.0

Context information
I'm using dgraph as a database and want to connect to it's /graphql endpoint using the graphql-kotlin client. For this I would like to use the graphqlIntrospectSchema and graphqlGenerateClient gradle tasks.

Describe the bug
Changes to a query file (ie. HelloWorldQuery.graphql, see below) and running gradle task graphqlGenerateClient the changes to the query file will not be present in the generated class HelloWorldQuery.

Preparation Stepts

• Start dgraph with docker run --rm -it -p "8080:8080" -p "9080:9080" -p "8000:8000" -v ~/dgraph:/dgraph "dgraph/standalone:v20.11.3"
• Save following graphql schema as schema.graphql

type Person {
    name: String! @search(by: [term])
    age: Int!
}

• Add schema to dgraph (save following file as schema.graphql and execute curl -X POST localhost:8080/admin/schema --data-binary '@schema.graphql'
• Create new Gradle kotlin project with the com.expediagroup.graphql plugin
• Add the following graphql plugin configuration:

graphql {
    client {
        endpoint = "http://localhost:8080/graphql"
        packageName = "com.example.generated"
        queryFileDirectory = "${project.projectDir}/src/main/resources/queries"
    }
}

To Reproduce

• Create sample query in resources/queries named "HelloWorldQuery.graphql" with content:

query HelloWorldQuery {
    queryPerson {
        name
    }
}

If you are wondering: queryPerson was created by dgraph and will return all Person objects from the database.

• Execute gradle task graphqlIntrospectSchema
• Execute gradle task graphqlGenerateClient
• Now change "HelloWorldQuery.graphql" and add age field:

query HelloWorldQuery {
    queryPerson {
        name
        age
    }
}

• Execute gradle task graphqlGenerateClient for the second time

Expected Results

The generated class HelloWorldQuery should be updated to represent the change of the query file (age field added). But the file does not seem to be changed after calling gradle task graphqlGenerateClient for the second time.

The current workaround is to run the gradle task clean followed by graphqlGenerateClient. After that, the class will be recreated with the age field.

[sid-logic]

Seems like gradle thinks that nothing has to be done:

> Task :graphqlIntrospectSchema UP-TO-DATE
> Task :graphqlGenerateClient UP-TO-DATE

Even though a file in the queries directory has been changed.

[dariuszkuc]

Hello 👋
This is a duplicate of #1232 which was fixed in #1235 and should be released soon.