NeoGradle page should list required gradle version for the selected NG verison

[TelepathicGrunt]

Would make sure people know to upgrade gradle easier
https://projects.neoforged.net/neoforged/neogradle

[sciwhiz12]

This is quite difficult to implement, since the information on what Gradle versions are supported by each NeoGradle version is not stored anywhere in a convenient format for use by the projects listing page. Additionally, the design of this feature ought to be in a way that is generalizable for any project which requires Gradle, or even beyond that for any project that requires a specific version for a 'base component'.

[FiniteReality]

Bumping this since I just had to help somebody with this - Gradle itself publishes an extra metadata JSON file called the "module" which contains this information:

• https://maven.neoforged.net/releases/net/neoforged/neoforge/21.4.42-beta/neoforge-21.4.42-beta.module
• https://maven.neoforged.net/releases/net/neoforged/gradle/userdev/7.0.173/userdev-7.0.173.module

Specifically, the metadata we're interested in is contained in the attributes object, using the keys:

• org.gradle.plugin.api-version -> The minimum version of Gradle necessary to resolve the variant
• org.gradle.jvm.version -> The minimum JVM version necessary to resolve the variant

In most cases these will match across all variants, but we could do something like this (pseudocode):

var json = getAndDeserializeMetadata();
var gradleVersion = json.variants.map(it -> it.attributes['org.gradle.plugin.api-version'])
    .distinct()
    .where(it -> it != null)
    .sortByDescending(it -> it) // lexicographic is PROBABLY enough here
    .first();
var jvmVersions = json.variants.map(it -> it.attributes['org.gradle.jvm.version'])
    .distinct()
    .where(it -> it != null)
    .sortByDescending(it -> it) // already stored as a number
    .first();