backup-seil-wrapper.sh.jinja

#!/bin/bash
# Print the usage message and exit.
function usage {
    echo ""
    echo "Usage: $(basename $0) [-h] [-c]"
    echo ""
    echo "Backus up the Homebrew installation for reinstallation later"
    echo ""
    echo " -h   Prints this help message"
    echo " -c   Set if script is being called via cron to send output to the hardcoded log directory"
       
    # Exit as error for nesting scripts
    exit 1
}

echo "THIS ISN'T FINISHED YET" >&2
exit 99

cron_mode="false"

# Parse command line arguments to override defaults.
while getopts 'hc' flag; do
    case "$flag" in
        h) usage ;;
        c) cron_mode="true" ;;
    esac
done

# TODO Ansible-ize these!!
export PATH="{{ homebrew_root_dirpath }}/bin:${PATH}"
backup_script="{{ backup_script_repo}}/backup_homebrew.py"
output_filepath="{{ git_repo_dirpath }}/homebrew-packages.json"
logs_dirpath="{{ logs_dirpath }}/homebrew-backup"

script_filename="$(basename ${0})"
log_filepath="${logs_dirpath}/${script_filename}_$(date +%F_%H-%M).log"
cmd="python ${backup_script} -c ${output_filepath}"
if [[ "${cron_mode}" == "true" ]]; then
    cmd="${cmd} &> ${log_filepath}"
fi
if eval "${cmd}"; then
    echo "${0} completed successfully" > ${log_filepath}
else
    echo "${0} exited with an error" > ${log_filepath}
fi