Fully support standard Gradle plugins block

[bubenheimer]

Describe the bug
It appears that it is still necessary to use the antiquated style of loading oss-licenses-plugin via a buildscript classpath definition in the project root build.gradle, instead of the standard plugins block.

This is what I'd expect to use in project root build.gradle, similar to how I'd apply the plugin at the module level as described here: https://developers.google.com/android/guides/opensource#add-gradle-plugin

buildscript {
    repositories {
        google()
    }
}

plugins {
    id("com.google.android.gms.oss-licenses-plugin") version("0.10.5") apply(false)
}

However this produces an error:

org.gradle.api.plugins.UnknownPluginException: Plugin [id: 'com.google.android.gms.oss-licenses-plugin', version: '0.10.5', apply: false] was not found in any of the following sources:

Instead I still have to use

buildscript {
    repositories {
        google()
    }

    dependencies {
        classpath("com.google.android.gms:oss-licenses-plugin:0.10.5")
    }
}

Gradle 7.4.2
Android Gradle plugin 7.1.3

[Goooler]

Link #50, still blocking on #222, provide a workaround, you can configure a resolutionStrategy in settings.gradle like:

pluginManagement {
    repositories {
        google()
    }
    resolutionStrategy {
        eachPlugin {
            if (requested.id.id == "com.google.android.gms.oss-licenses-plugin") {
                useModule("com.google.android.gms:oss-licenses-plugin:${requested.version}")
            }
        }
    }
}

[emartynov]

Great! Thank you for the workaround.

Here the plugin documentation how to publish the plugin.