allow running root ci scripts in BUILD_SUBDIR

Author: chingor13

.kokoro/build.sh

@@ -33,10 +33,17 @@ if [ -f "${KOKORO_GFILE_DIR}/secret_manager/java-bigqueryconnection-samples-secr
   source "${KOKORO_GFILE_DIR}/secret_manager/java-bigqueryconnection-samples-secrets"
 fi
 
+if [[ -n "${BUILD_SUBDIR}" ]]
+then
+  echo "Running in subdir: ${BUILD_SUBDIR}"
+  pushd "${BUILD_SUBDIR}"
+fi
+
 RETURN_CODE=0
 
 case ${JOB_TYPE} in
   test)
+    echo "SUREFIRE_JVM_OPT: ${SUREFIRE_JVM_OPT}"
     retry_with_backoff 3 10 \
       mvn test \
         -B -ntp \
@@ -48,7 +55,7 @@ case ${JOB_TYPE} in
         -Dflatten.skip=true \
         -Danimal.sniffer.skip=true \
         -Dmaven.wagon.http.retryHandler.count=5 \
-        -T 1C
+        -T 1C ${SUREFIRE_JVM_OPT}
     RETURN_CODE=$?
     echo "Finished running unit tests"
     ;;
@@ -125,6 +132,12 @@ case ${JOB_TYPE} in
 
 esac
 
+if [[ -n "${BUILD_SUBDIR}" ]]
+then
+  echo "restoring directory"
+  popd
+fi
+
 if [ "${REPORT_COVERAGE}" == "true" ]; then
   bash ${KOKORO_GFILE_DIR}/codecov.sh
 fi

.kokoro/dependencies.sh

@@ -49,6 +49,12 @@ function determineMavenOpts() {
 
 export MAVEN_OPTS=$(determineMavenOpts)
 
+if [[ -n "${BUILD_SUBDIR}" ]]
+then
+  echo "Running in subdir: ${BUILD_SUBDIR}"
+  pushd "${BUILD_SUBDIR}"
+fi
+
 # this should run maven enforcer
 retry_with_backoff 3 10 \
   mvn install -B -V -ntp \
@@ -57,3 +63,9 @@ retry_with_backoff 3 10 \
     -Dclirr.skip=true
 
 mvn -B dependency:analyze -DfailOnWarning=true
+
+if [[ -n "${BUILD_SUBDIR}" ]]
+then
+  echo "Leaving subdir: ${BUILD_SUBDIR}"
+  popd
+fi

generation/check_non_release_please_versions.sh

@@ -19,6 +19,10 @@ for pomFile in $(find . -mindepth 2 -name pom.xml | sort ); do
     echo "Skipping version check for java-samples directory"
     continue
   fi
+  if [[ "${pomFile}" =~ .*/samples/.* ]]; then
+    echo "Skipping version check for samples directory"
+    continue
+  fi
 
   if grep -n '<version>.*</version>' "$pomFile" | grep -v 'x-version-update'; then
     echo "Found version declaration(s) without x-version-update in: $pomFile"