Tracks whether Jenkins SuperSeed has picked up new push in Gerrit, and if yes, then launches Jenkind Build

jenkins_job_submit.sh

#!/bin/bash

##
#
# Script tracks whether Jenkins SuperSeed job has picked up new push in Gerrit,
# and if yes and Successful, then launches Jenkind Build.
# Launch example:
# $ git commit -a --amend --reuse-message HEAD && git review && ../jenkins_job_submit.sh
# 
# SuperSeed: https://github.com/att-comdev/cicd/tree/master/cicd/SuperSeed
#

# fail on errors
set -e

gerrit_url=https://review.gerrithub.io
gerrit_user=user1
gerrit_pass=pass1

jenkins_url=http://ip:port
jenkins_user=user2
jenkins_token=token2
jenkins_form_data="param1=value1"
jenkins_job_path=jobpath
jenkins_job_name=jobname

changeID=$(git log -1 --format=%b | awk '/Change-Id/ {print $2}')
num_tries=10		# to check Gerrit
sleep_seconds=5		# between checks

function endProgressBar {
	echo -n "]"
	echo
}

function submitBuild {
	crumb=$(curl -s -u${jenkins_user}:${jenkins_token} \
		${jenkins_url}/crumbIssuer/api/json | jq --raw-output '.crumb')
	curl -s -u${jenkins_user}:${jenkins_token} \
		-F ${jenkins_form_data} \
		-X POST -H "Jenkins-Crumb:${crumb}" \
		${jenkins_url}/${jenkins_job_path}/${jenkins_job_name}/build && \
	echo "Launched Jenkins build"
}

echo -n "["
for (( n=1; n<=${num_tries}; n++ )); do

	# last message in gerrit's change log for your Change ID
	lastMessage=$(curl -s -u$gerrit_user:$gerrit_pass \
			-H "Accept: application/json" \
			${gerrit_url}/a/changes/${changeID}/detail | tail -n+2 | jq '.messages|.[-1].message')
	echo -n "#"

	# SuperSeed messages contain either SUCCESS or FAILURE string
	if [[ ${lastMessage} =~ SUCCESS ]]; then
		endProgressBar
		echo "Seed Build Successful"
		submitBuild
		break
	elif [[ ${lastMessage} =~ FAILURE ]]; then
		endProgressBar
		echo "Seed Build Failure. Check logs: "${lastMessage}
		exit 1
	else
		if (( ${n}==${num_tries} )); then
			endProgressBar
			echo "Timed out waiting for SuperSeed message"
			exit 1
		fi
	fi

	sleep ${sleep_seconds}
done