Add machinery to bootstrap the cc_app with code coverage

data from gcs, using "gsutil", to search for static site data, per ci job.

.ci/Jenkinsfile_coverage

@@ -80,6 +80,11 @@ stage("Kibana Pipeline") { // This stage is just here to help the BlueOcean UI a
 
                   . src/dev/code_coverage/shell_scripts/ingest_coverage.sh ${BUILD_NUMBER}
 
+                  . src/dev/code_coverage/shell_scripts/bootstrap_app_initial_data.sh ${BUILD_NUMBER}
+
+                  # Check my work :)
+                  cat src/dev/code_coverage/shell_scripts/bootstrapped.txt
+
                 """,
                 "### Run `yarn kbn bootstrap && merge coverage` and Ingest Code Coverage to ES Cluster"
               )

src/dev/code_coverage/shell_scripts/bootstrap_app_inital_data.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+
+set -e
+
+echo "### Bootstrapping App Initial Data"
+
+BUCKET="gs://kibana-ci-artifacts/jobs/elastic+kibana+code-coverage"
+export BUCKET
+CURRENT_BUILD_ID=$1
+export CURRENT_BUILD_ID
+PAST_BUILD_ID=$((CURRENT_BUILD_ID - 15))
+export PAST_BUILD_ID
+
+queryDataStore () {
+  # Sink errors to /dev/null...THEE BITBUCKET :)
+  for x in `seq ${PAST_BUILD_ID} ${CURRENT_BUILD_ID}`
+  do
+    gsutil ls -a ${BUCKET}/${x} 2>/dev/null |grep Z 1>> bootstrapped.txt
+  done
+}
+queryDataStore
+
+
+echo "### Bootstrapping App Initial Data - Complete"