How to change android gradle ndk -j (--jobs) flag value for clean task?

Question

I use -j flag to speed up ndk compile time like this:

defaultConfig {
    ...
    externalNativeBuild {
        ndkBuild {
            arguments "-j8"
        }
    }
}

Building works fine, but clean produces this error:

rm: fts_read: No such file or directory

This is documented in Google's ndk-build docs, and the reason for this is parallel execution (-j flag) on Mac, so I need to either remove this flag or change it to -j1 for clean task. How can I do this?

Answer 1

This is how I did it:

def getProcessesCountArg() {
    def procCount = Runtime.runtime.availableProcessors()

    Gradle gradle = getGradle()
    def isClean = gradle.getStartParameter().getTaskNames().find { it ==~ /.*clean.*/ }
    if (isClean) {
        procCount = 1
    }

    return "-j" + procCount
}

Wish there was a better way.