Add intake option to CI script

This commit adds an option for running the intake build from the CI
scripts. The intake build differs from check in that it runs compilation
and pre-commit checks before running tests so that common build failures
causes will happen earlier than otherwise.

Relates elastic/x-pack-elasticsearch#2420

Original commit: elastic/x-pack-elasticsearch@b179ce1087

dev-tools/ci

@@ -25,6 +25,17 @@ set -o pipefail
 # default to `check` if no argument has been supplied
 key=${1-check}
 case $key in
+    intake)
+        GRADLE_CLI_ARGS=(
+            "--info"
+            "compileJava"
+            "compileTestJava"
+            "precommit"
+            "check"
+            "-Dtests.network=true"
+            "-Dtests.badaples=true"
+        )
+        ;;
     packagingTest)
         GRADLE_CLI_ARGS=(
             "--info"