IssueTracker

Building on Gradle's example of embedding a wrapper to ensure hermetic, consistent builds, please provide a similar concept for the SDK. And let me go out of my way to say up front that the download can be interactive to facilitate jumping through the requisite license hoops.

Onboarding new developers and keeping existing developer machines up to date is an atrocious experience. "Download the SDK, run this thing, install these packages, restart the thing, download more packages, no not those packages, add a local.properties pointing to the folder". The SDK embedded in Eclipse and Android Studio is even worse to deal with.

I should be able to clone any Gradle-based repo and on first import into AS or first ./gradlew execution an interactive prompt takes me through one or more of the following:

 * Downloading the base SDK
 * Installing/updating build-tools
 * Installing/updating the current compilation API
 * Installing/updating the Maven repos for support libs or Play Services

Unfortunately Google does't expose old versions/revisions of some of these things so older versions can't live in parallel let alone even be downloaded, but let's take this one step at a time...