Fix CI log interleaving

* Stop logs from parallel tests interleaving with each other
* Cut down on noise and reduce page load times by only logging std
streams for tests that fail
* @Validated AT cloud foundry configuration
* Remove unnecessary Gradle tasks from the AT job since they've already
been performed as part of `build`
* Stop tests and javadoc Gradle tasks being run against docs subproject
and causing failures

#380

ci/scripts/acceptance-tests.sh

@@ -11,10 +11,7 @@ readonly CLIENT_SECRET="${CLIENT_SECRET:?must be set}"
 readonly DEFAULT_ORG="${DEFAULT_ORG:?must be set}"
 readonly DEFAULT_SPACE="${DEFAULT_SPACE:?must be set}"
 readonly SKIP_SSL_VALIDATION="${SKIP_SSL_VALIDATION:?must be set}"
-
-build() {
-  ./gradlew assemble -x test
-}
+readonly ONLY_SHOW_STANDARD_STREAMS_ON_TEST_FAILURE="${ONLY_SHOW_STANDARD_STREAMS_ON_TEST_FAILURE:?must be set}"
 
 run_tests() {
   export SPRING_CLOUD_APPBROKER_ACCEPTANCETEST_CLOUDFOUNDRY_API_HOST="${API_HOST}"
@@ -27,12 +24,13 @@ run_tests() {
   export SPRING_CLOUD_APPBROKER_ACCEPTANCETEST_CLOUDFOUNDRY_DEFAULT_SPACE="${DEFAULT_SPACE}"
   export SPRING_CLOUD_APPBROKER_ACCEPTANCETEST_CLOUDFOUNDRY_SKIP_SSL_VALIDATION="${SKIP_SSL_VALIDATION}"
   export TESTS_BROKERAPPPATH=build/libs/spring-cloud-app-broker-acceptance-tests.jar
-  ./gradlew clean assemble check -PacceptanceTests -b spring-cloud-app-broker-acceptance-tests/build.gradle
+  ./gradlew -PacceptanceTests \
+  	-PonlyShowStandardStreamsOnTestFailure="${ONLY_SHOW_STANDARD_STREAMS_ON_TEST_FAILURE}" \
+  	:spring-cloud-app-broker-acceptance-tests:test
 }
 
 main() {
   pushd "git-repo" > /dev/null
-    build
     run_tests
   popd > /dev/null
 }

ci/scripts/build-project.sh

@@ -1,10 +1,15 @@
 #!/bin/bash
 set -e
 
+readonly ONLY_SHOW_STANDARD_STREAMS_ON_TEST_FAILURE="${ONLY_SHOW_STANDARD_STREAMS_ON_TEST_FAILURE:"true"}"
+
 # shellcheck source=scripts/common.sh
 source "$(dirname "$0")/common.sh"
 repository=$(pwd)/distribution-repository
 
 pushd git-repo >/dev/null
-./gradlew --no-daemon clean build install -Dmaven.repo.local="${repository}" -Dorg.gradle.jvmargs="-Xmx512m -Xmx2048m"
+./gradlew --no-daemon clean build install \
+	-PonlyShowStandardStreamsOnTestFailure="${ONLY_SHOW_STANDARD_STREAMS_ON_TEST_FAILURE}" \
+	-Dmaven.repo.local="${repository}" \
+	-Dorg.gradle.jvmargs="-Xmx512m -Xmx2048m"
 popd >/dev/null