With the overall theme of trying to configure and add less to the build instead of just disabling it later,
we're replacing standalone-test by standalone-rest tasks avoids creating the
unused test tasks.
Standalone rest test plugin and the other rest test plugins behave a little bit different in the sense how source sets and test tasks are wired.
The standalone rest test plugin assumes that all RestTestTasks are using the same sourceSet (test). The yaml, java Rest test plugins use one dedicated sourceSet per test task.
In the long run we probably will migrate standalone-rest-test usages to one of the other plugins and deprecate standalone-rest-test
Extract usage of internal API from TestClustersPlugin and PluginBuildPlugin and related plugins and build logic
This includes a refactoring of ElasticsearchDistribution to handle types
better in a way we can differentiate between supported Elasticsearch
Distribution types supported in TestCkustersPlugin and types only supported
in internal plugins.
It also introduces a set of internal versions of public plugins.
As part of this we also generate the plugin descriptors now.
As a follow up on this we can actually move these public used classes into
an extra project (declared as included build)
We keep LoggedExec and VersionProperties effectively public And workaround for RestTestBase
Related to #71593 we move all build logic that is for elasticsearch build only into
the org.elasticsearch.gradle.internal* packages
This makes it clearer if build logic is considered to be used by external projects
Ultimately we want to only expose TestCluster and PluginBuildPlugin logic
to third party plugin authors.
This is a very first step towards that direction.