With plugins of a meta-plugin now loaded in separate classloaders, we
should not be loading all classes in all plugins of a meta-plugin when
executing scripts. This is particularly problematic in the case of
security extensions where the install plugin extension command would be
running with the classpath of all plugins. However, if there is JAR hell
in this classpath, installation would fail. This is not realistic though
since the plugins are run in separate classloaders. To fix this, for the
scripts of a plugin, we only set the classpath to include the JARs for
that plugin and the JARs of core. This leads us to the introduction of
plugin-specific env scripts.
Relates elastic/x-pack-elasticsearch#3649
Original commit: elastic/x-pack-elasticsearch@543df37eed
Some imports were changed in 6.x to address line-length issues
there. This commit pulls the same changes to master to keep the branches
consistent to simplify backports.
Original commit: elastic/x-pack-elasticsearch@190f9d41f5
* Rename folder x-pack-core -> core
The jar remains 'x-pack-core-*.jar'
* Put group in top-level build.gradle instead of plugin/core/build.gradle
Original commit: elastic/x-pack-elasticsearch@b23452fa55
This creates a basic skeleton for the plugin split by adding folders and example
`build.gradle` files. It also includes a non-implemented `migrate-plugins.sh`
script that we can fill in at a later time.
Relates to elastic/x-pack-elasticsearch#2925
Original commit: elastic/x-pack-elasticsearch@2ab035d6b6
