Custom task for multi-mod projects

build.gradle

// The following is a custom gradle task to make setting up a multimod project in IntelliJ less painful
// Setup a base project (I just use the examplemod from the MDK) and setup like normal. Then import your
// other mods as modules. Run the genIntelliJRuns task like normal, but then follow up with the updateRuns
// task written below, making sure to replace the items in the modProjects array with your own. It might
// also be a good idea to edit the run configurations in IntelliJ to build the whole project instead of just
// the base project (Edit Configuration -> For each run<blank> remove the "Build" step -> Click the + ->
// Add "Build Project" task -> drag to begining before "prepareRun<blank>" task)

def updateXMLRuns(String runName) {
    def modProjects = [
            ["examplemod", ""], // This is just for the example mod in the MDK. Could always leave it out if you want
            ["trophyslots", "/../TrophySlots"],
            ["knit", "/../ForgeKnit"]
    ]

    def runFile = file(".idea/runConfigurations/${runName}.xml")
    if (runFile.exists()) {
        def runParser = new XmlParser().parse(runFile)
        runParser.configuration.envs.env.each { node ->
            if (node.@name == "MOD_CLASSES") {
                def newValue = ""
                for (int i = 0; i < modProjects.size(); i++) {
                    def pair = modProjects[i]
                    if (newValue?.trim())
                        newValue += ":"
                    newValue += "${pair[0]}%%\$PROJECT_DIR\$${pair[1]}/build/resources/main:"
                    newValue += "${pair[0]}%%\$PROJECT_DIR\$${pair[1]}/build/classes/java/main"
                }
                node.@value = newValue
            }
        }

        def writer = new FileWriter(runFile)
        def printer = new XmlNodePrinter(new PrintWriter(writer))
        printer.preserveWhitespace = true
        printer.print(runParser)
    }
}

task updateRuns {
    updateXMLRuns("runClient")
    updateXMLRuns("runData")
    updateXMLRuns("runServer")
}