Get git SHA of latest staging deploy from Jenkins and merge it into deploy-prod branch

gistfile1.sh

#!/bin/bash
# This script requires the jq package to be installed (for JSON parsing)

JENKINS_API_CREDENTIALS=""
JENKINS_URL=""

get_last_build_info() {
    local JOB_NAME=$1
    local JS
    local COMMAND="curl -fs -u $JENKINS_API_CREDENTIALS $JENKINS_URL/job/${JOB_NAME}/lastSuccessfulBuild/api/json"
    JS=$($COMMAND)
    local RC=$?
    if [ $RC -ne 0 ]; then 
        echo "Failed to get build JSON" >&2
        return 1;
    fi
    echo "$JS"
}

get_last_sha() {
    local JOB_NAME=$1
    local LAST_BUILD_INFO=$(get_last_build_info $JOB_NAME)
    local TOTAL_ACTIONS=$(echo "$LAST_BUILD_INFO" | jq '.actions | length')
    if [ $TOTAL_ACTIONS -lt 1 ]; then
        echo "Could not find any actions for this build. Aborting." >&2
        return 1
    fi
    local I
    for ((I=0; I<$TOTAL_ACTIONS; I++)); do
        local SHA=$(echo "$LAST_BUILD_INFO" | jq .actions[$I].lastBuiltRevision.SHA1)
        if [ ${#SHA} -eq 42 ]; then
            break
        fi
    done
    if [ ${#SHA} -ne 42 ]; then
        echo "Failed to get SHA" >&2
        return 1
    fi
    echo "${SHA//\"}"
}

LATEST_SHA=`get_last_sha deploy-ide-staging`
if [ $? -ne 0 ]; then
	  echo "Failed to get latest SHA from deploy-ide-staging"
    exit 1
fi

echo "Pushing latest tested SHA into deploy-prod"
git checkout $LATEST_SHA
git branch -f deploy-prod
git push origin +deploy-prod