With gradle, deploying to maven means first generating poms. These are
filled in based on dependencies of the project. Recently, we started
disallowing transitive dependencies. However, this configuration does
not translate to maven poms because maven has no concept of excluding
all transitive dependencies.
This change adds exclusions for each of the transitive deps of each
dependency being added to the maven pom. It does so by creating dummy
configurations for each direct dependency (which does not have
transitive deps excluded), so that we can iterate the transitive deps
when building the pom.
Note, this should be simpler (just modifying maven's pom model), but
gradle tries to hide that from their api, causing us to need to
manipulate the xml directly.
https://discuss.gradle.org/t/modifying-maven-pom-generation-to-add-excludes/12744
Transitive dependencies can be confusing and hard to deal with when
conflicts arise between them. This change removes transitive
dependencies from elasticsearch, and forces any dependency conflicts to
be resolved manually, instead of automatically by gradle.
closes#14627
Some dependencies must be specified in a couple places in the build.
e.g. randomized runner is specified both in buildSrc (for the gradle
wrapper plugin), as well as in the test-framework.
This change creates buildSrc/versions.properties which acts similar to
the set of shared version properties we used to have in the maven parent
pom.
The documentation says we support EPUB, but the parser is not enabled.
This parser does not require any external dependencies, so I think its ok?
Separately, test-framework drags in an ancient commons-codec (via httpclient), which gradle
"upgrades", but IDEs can't handle this case and just hit jar hell. So just wire that to 1.9,
this allows running tests in the IDE for this plugin.
The test jar was previously built in maven by copying class files. With
gradle we now have a proper test framework artifact. This change moves
the classes used by the test framework into the test-framework module.
See #13930
