gate-upstream-repo-commits-parent

#!/bin/bash

set -e
set -x

# Once a repo is known to have upstream changes, start of a gate job to verify
# those changes
start_gate_subjob(){
    job_name="$1"
    curl -X POST -s -K ~/.rcbjenkins-jenkins-creds \
        -d "GIT_BRANCH=${branch}&SUBMODULE=${submodule}" \
        ${JENKINS_URL}/job/${job_name}/buildWithParameters
}

# skip these modules from the auto-repo-update.
SKIP_REGEX="rcbops-cookbooks"

branches='master'

for branch in $branches; do

    echo "checking submodule updates for ${branch}"
    echo "========================================"
    rm -fr chef-cookbooks
    git clone git://github.com/rcbops/chef-cookbooks
    pushd chef-cookbooks

    git checkout $branch

    declare -a updated

    # get list of submodules to check
    repolist=$(awk '/path/{submodule=$3}; /url/ && $3 !~/'"${SKIP_REGEX}"'/ {print submodule}' .gitmodules)

    # check each and fire off downstream job if repo has changed
    for repo in ${repolist}; do
        # get bare submodule name
        submodule=$(echo ${repo##*/}|cut -d'.' -f1)

        #update submodule
        git submodule init
        git submodule update cookbooks/${submodule}

        # compare current, and master, and fire tests if different
        pushd cookbooks/${submodule}
        current_ref=$(git reflog | head -1 | cut -d' ' -f1)
        git checkout master
        git pull
        master_ref=$(git reflog | head -1 | cut -d' ' -f1)
        if [ "${current_ref}" = "${master_ref}" ] ; then
            echo "upstream $submodule cookbook has not changed. Nothing to do here, move along please..."
        else
            echo "$submodule cookbook has some updates.  Triggering gate job to test..."
            if [[ "$url" =~ 'ceph-cookbooks' ]]; then
                start_gate_subjob gate-upstream-repo-commits-ceph
            else
                start_gate_subjob gate-upstream-repo-commits
            fi
            updated=("${updated[@]}" "${branch}:${submodule}")
        fi
        popd
    done

    # clean up
    popd
    rm -fr chef-cookbooks
    echo

done

if [ ! -z $updated ] ; then
    echo "The following submodules had updates, and downstream tests were kicked off for them:"
    echo ${updated[@]}
else
    echo "There are no updates to any submodules today"
fi

exit 0