After upgrading to Gradle 6 x sometime ago I started to noti kotlinlang #gradle

After upgrading to Gradle 6.x sometime ago I started to notice that after each and every build of my Kotlin project, Gradle generates Java source folders _unnecessarily_: •

src/main/java

•

src/test/java

My current configuration is:

$ ./gradlew -v
------------------------------------------------------------
Gradle 6.5.1
------------------------------------------------------------

Build time:   2020-06-30 06:32:47 UTC
Revision:     66bc713f7169626a7f0134bf452abde51550ea0a

Kotlin:       1.3.72
Groovy:       2.5.11
Ant:          Apache Ant(TM) version 1.10.7 compiled on September 1 2019
JVM:          11.0.8 (<http://Amazon.com|Amazon.com> Inc. 11.0.8+10-LTS)
OS:           Linux 5.4.0-42-generic amd64

I added the following to my

build.gradle.kts

script but had no effect whatsoever:

sourceSets {
    main {
        java.srcDir("src/main/kotlin")
        resources.srcDir("src/main/resources")
    }
    test {
        java.srcDir("src/test/kotlin")
        resources.srcDir("src/test/resources")
    }
}

octylFractal

08/08/2020, 3:16 AM

afaik Gradle itself and the Kotlin plugin never create source directories

yea, just tested -- cannot reproduce with 6.5.1 and Kotlin 1.3.72

Lex Luthor

08/08/2020, 3:21 AM

After you mentioned, I started enabling/disabling Gradle plugins until I found the culprit:

ktlintFormat

😢

Now I just need to figure out what rule is causing..

I am using

ktlint

9.3.0

After further investigation, I can confirm the issue is at least partly related to Gradle.. said regression occurred while upgrading from version 6.1.1 to 6.2 of Gradle. Before 6.2 the issue does not occur regardless of what version of the ktlint plugin I set (up to the latest version 9.3.0)

Marc Knaup

08/08/2020, 10:33 AM

You can use setSrcDirs with a list of directories instead of srcDir. The former will overwrite all existing source directory settings while the latter will only add some to the existing settings.

Lex Luthor

08/09/2020, 3:54 AM

Thx Marc. that is a workaround..

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