README.md

How to use

Copy the other file in this gist into your $GRADLE_USER_HOME/init.d (usually this is: ~/.gradle/init.d/installMinecraft.init.gradle.kts) and replace the installation path with the correct path. From now on, every mod project that uses forgegradle or loom (and a roughly standard project layout) should have the task ./gradlew installToMinecraft available (also available in your IDE), which will install that jar. in projects with multiple subprojects, you might want to use a fully qualified task path: Either ./gradlew :installToMinecraft for installing the root project, or ./gradlew :forge-1.8.9:installToMinecraft to install a subproject (for example for multi-version projects).

Caveats

This does not parse the modid (since the format of mod metadata varies a lot, so archiveBaseName has to be set correctly (or the old file won't be deleted)

installMinecraft.init.gradle.kts

allprojects {
		this.afterEvaluate {
				if (!listOf(
								"gg.essential.loom",
								"dev.architectury.loom",
								"fabric-loom",
								"net.minecraftforge.gradle.tweaker-client",
								"net.minecraftforge.gradle.forge",
						).any { plugins.hasPlugin(it) }
				) {
						return@afterEvaluate
				}
				val toInstall = listOf("remapJar", "shadowJar", "jar").mapNotNull {
						tasks.findByName(it)
				}.filterIsInstance<org.gradle.jvm.tasks.Jar>().firstOrNull()
        // Replace this with your own mod folder
				val targetDirectory = File("/home/nea/.local/share/PrismLauncher/instances/Skyblock/.minecraft/mods")
				if (toInstall != null) {
						tasks.create("installToMinecraft") {
								dependsOn(toInstall)
								doLast {
										val modJar = toInstall.archiveFile.get().asFile
										targetDirectory.listFiles()
												.filter {
														it.name.startsWith(toInstall.archiveBaseName.get())
												}
												.forEach {
														it.delete()
												}
										modJar.copyTo(targetDirectory.resolve(modJar.name))
										println("Installed $modJar to $targetDirectory")
								}
						}
				}
		}
}