#!/bin/bash set -euo pipefail DEBUG=${DEBUG:-false} FETCH_INTERVAL=${FETCH_INTERVAL:-3600} REPOS=(public secret system) SSH_KEY=${SSH_KEY:-fafnir} # Print debug messages if enabled by ${DEBUG} function debug() { [[ ${DEBUG} == "false" ]] && return echo "$@" >&2 } function join_by() { local d=$1 shift echo -n "$1" shift printf "%s" "${@/#/$d}" } # Wrap git to work with git-dir and work-tree being in other locations function gwrap() { git --git-dir=${HOME}/.cfg/${REPO} --work-tree=${HOME} $@ } # Ensure we're connected to network before acting if ! (ping -q -c 1 8.8.8.8 >/dev/null); then debug "No network connection, not checking" exit 0 fi STAT_PARM="-c %Y" [[ "$(uname -s)" == "Darwin" ]] && STAT_PARM="-f %m" NEED_UPDATE=() # Check repos for updates for REPO in ${REPOS[@]}; do LAST_FETCH=0 [ -f ~/.cfg/${REPO}/FETCH_HEAD ] && LAST_FETCH=$(stat ${STAT_PARM} ~/.cfg/${REPO}/FETCH_HEAD) if [ $(($(date +%s) - LAST_FETCH)) -gt ${FETCH_INTERVAL} ] || [ $(wc -c ~/.cfg/${REPO}/FETCH_HEAD | cut -d' ' -f1) -eq 0 ]; then vault-sshadd ${SSH_KEY} 2>&1 >/dev/null || { echo "Unable to load key ${SSH_KEY}" exit 1 } gwrap fetch -q origin fi LOCAL=$(gwrap rev-parse HEAD) REMOTE=$(gwrap rev-parse FETCH_HEAD) if ! [[ ${LOCAL} == "${REMOTE}" ]]; then NEED_UPDATE+=("'${REPO}'") fi done if [ ${#NEED_UPDATE[@]} -gt 0 ]; then echo "Config repo $(join_by ", " "${NEED_UPDATE[@]}") needs update" else if ( ${HOME}/bin/config-git-status.sh ); then echo "Up-to-date" else echo "Up-to-date with uncommitted changes" fi fi