Gradle task that prints total dependencies size and (dependency+(size in kb)) list sorted by size desc

build.gradle

...
/* Tested with Gradle 6.3 */

tasks.register("depsize") {
    description = 'Prints dependencies for "default" configuration'
    doLast() {
        listConfigurationDependencies(configurations.default)
    }
}

tasks.register("depsize-all-configurations") {
    description = 'Prints dependencies for all available configurations'
    doLast() {
        configurations
                .findAll { it.isCanBeResolved() }
                .each { listConfigurationDependencies(it) }
    }
}

def listConfigurationDependencies(Configuration configuration) {
    def formatStr = "%,10.2f"

    def size = configuration.collect { it.length() / (1024 * 1024) }.sum()

    def out = new StringBuffer()
    out << "\nConfiguration name: \"${configuration.name}\"\n"
    if (size) {
        out << 'Total dependencies size:'.padRight(65)
        out << "${String.format(formatStr, size)} Mb\n\n"

        configuration.sort { -it.length() }
                .each {
                    out << "${it.name}".padRight(65)
                    out << "${String.format(formatStr, (it.length() / 1024))} kb\n"
                }
    } else {
        out << 'No dependencies found';
    }
    println(out)
}
...

@UltramanTIGA
Yep, you may for example change "depsize" task to use a configuration other than "default".

@medvedev Ok.Thanks a lot!

In case somebody needs the same in .kts

tasks.register("depsize") {
	description = "Prints dependencies for \"default\" configuration"
	doLast {
		listConfigurationDependencies(configurations["default"])
	}
}

tasks.register("depsize-all-configurations") {
	description = "Prints dependencies for all available configurations"
	doLast {
		configurations
				.filter { it.isCanBeResolved }
				.forEach { listConfigurationDependencies(it) }
	}
}

fun listConfigurationDependencies(configuration: Configuration ) {
	val formatStr = "%,10.2f"

	val size = configuration.map { it.length() / (1024.0 * 1024.0) }.sum()

	val out = StringBuffer()
	out.append("\nConfiguration name: \"${configuration.name}\"\n")
	if (size > 0) {
		out.append("Total dependencies size:".padEnd(65))
		out.append("${String.format(formatStr, size)} Mb\n\n")

		configuration.sortedBy { -it.length() }
				.forEach {
					out.append(it.name.padEnd(65))
					out.append("${String.format(formatStr, (it.length() / 1024.0))} kb\n")
				}
	} else {
		out.append("No dependencies found")
	}
	println(out)
}

@phi1ipp thanks :)

Hi, I'm getting this error > Could not get unknown property 'default' for configuration container of type org.gradle.api.internal.artifacts.configurations.DefaultConfigurationContainer. when I run ./gradlew depsize.
I'm using gradle 7.2.2 by the way, any help will be much appreciated.
Thanks.

For anyone who is having issues with the configurations.default, you can do the following.

1. Print all your configurations to see what you've got.
2. Replace default with a configuration that you would like to analyze. For example, you can use debugImplementationDependenciesMetadata instead of default.
3. Run ./gradlew depsize

cc: @ansyori28

configurations["default"].isCanBeResolved = true

on the top of build.gradle.kts