I'm trying to use the researchgate gradle-release ...

# gradle

[snowe]

I'm trying to use the researchgate gradle-release plugin. I have my versions of certain libraries set in gradle.properties, like so

version=0.14.0
commonVersion=0.15.0-SNAPSHOT
enterpriseVersion=0.16.0-SNAPSHOT

I need to remove the snapshot, so I've written a task

tasks {
    register("snapshotIncrementer") {
        group = "release"
        inputs.file("gradle.properties")
        outputs.file("gradle.properties")
        doFirst {
            val file = File("$projectDir/gradle.properties")
            val newLines = file.readLines().map { it.replace("-SNAPSHOT", "") }
            file.writeText(newLines.joinToString(separator = "\n"))

            exec {
                setIgnoreExitValue(true)
                commandLine("git", "commit", "-m", "Removing SNAPSHOT versions", "--", "gradle.properties")
            }
        }
        doLast {
            Thread.sleep(20000)
        }
    }
    "checkSnapshotDependencies" {
        dependsOn("snapshotIncrementer")
    }
}

That runs before the gradle-release plugin checks if snapshot versions are present. This succeeds in committing the gradle.properties file with the -SNAPSHOT removed, but no matter how long I Thread.sleep for, when the checkSnapshotDependencies task runs, it still sees the old version of the file. I am not sure why this would be unless gradle is doing some sort of optimizing and starting the second task thread before the snapshotIncrementer is done. Any ideas what I can do to get this working?