cfg/bin/check_config
Knut Ahlers 1f646ca455
Ensure ssh-key and re-fetch when no rev is known
Signed-off-by: Knut Ahlers <knut@ahlers.me>
2018-02-11 11:12:50 +01:00

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1.3 KiB
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Executable file

#!/bin/bash
set -euo pipefail
DEBUG=${DEBUG:-false}
FETCH_INTERVAL=${FETCH_INTERVAL:-3600}
REPOS=( public secret )
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 "$1"; shift; printf "%s" "${@/#/$d}"; }
# Wrap git to work with git-dir and work-tree being in other locations
function gwrap {
hub --git-dir=${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
if [ $(( $(date +%s) - $(stat ${STAT_PARM} .cfg/${REPO}/FETCH_HEAD) )) -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 ${SSH_KEY}"; exit 1; }
gwrap fetch -q
fi
LOCAL=$(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"
fi