Automatic Distribution Sha Plugin

This plugin makes discovering the sha256-sum of a gradle distribution automatic.

Use

Apply to the root project:

plugins {
    id "com.github.sghill.distribution-sha" version "0.4.0"
}

Or to apply to every project you run, create an init script ~/.gradle/init.d/auto-sha.gradle:

initscript {
    repositories {
        gradlePluginPortal()
    }
    dependencies {
        classpath 'com.github.sghill.gradle:distribution-sha-plugin:0.4.0'
    }
}
apply plugin: com.github.sghill.gradle.DistributionShaInitPlugin

How

With the plugin applied, the wrapper task is configured to fetch distributionUrl + ".sha256" and provide its contents as the gradle-distribution-sha256-sum arg automatically:

$ ./gradlew wrapper --gradle-version 4.9 --distribution-type all
$ cat gradle/wrapper/gradle-wrapper.properties | grep distribution

distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
distributionSha256Sum=39e2d5803bbd5eaf6c8efe07067b0e5a00235e8c71318642b2ed262920b27721
distributionUrl=https\://services.gradle.org/distributions/gradle-4.9-all.zip

Previously

To get this feature on wrapper upgrades without the plugin you'd need to get the contents of the .sha256 file and add it to the command:

./gradlew wrapper --gradle-version 4.9 --distribution-type all --gradle-distribution-sha256-sum 39e2d5803bbd5eaf6c8efe07067b0e5a00235e8c71318642b2ed262920b27721

Understandably, this means that many projects with a checked-in wrapper aren't using this feature.