common-lib

function current_travis_branch() {
    local opt_u_state
    [ -o nounset ] && opt_u_state='set -u' || opt_u_state='set +u'
    set +u

    local branch
    if [ "x_{$TRAVIS_EVENT_TYPE}" = "x_pull_request" ]; then
        branch=${TRAVIS_PULL_REQUEST_BRANCH}
    else
        branch=${TRAVIS_BRANCH}
    fi

    local ret_code
    if [ "x_${branch}" = "x_" ]; then
        echo "ERROR: TRAVIS_*BRANCH variable(s) seem undefined. Could not get the branch info." 1>&2
        ret_code=1
    else
        echo ${branch}
        ret_code=0
    fi

    eval ${opt_u_state}
    return ${ret_code}
}

function get_remote_ssh_repo_url() {
    echo $(git remote get-url origin | sed -e 's#https://github.com/#git@github.com:#')
}

function exit_if_not_ci() {
    local opt_u_state
    [ -o nounset ] && opt_u_state='set -u' || opt_u_state='set +u'
    set +u

    if [ -z "${TRAVIS+x}" -o "x_${TRAVIS}" != "x_true" ]; then
        echo "ERROR: Exiting because this script was not triggered by Travis CI." 1>&2
        exit 1
    fi

    eval ${opt_u_state}
}