reboot-sync-remote

#!/usr/bin/env bash
#
#  Synopsis:
#	Manual reboot of all sync flowd process in $BLOBIO_ROOT/sync/remote/*
#  Usage:
#	#  Standalone
#	export BLOBIO_ROOT=/usr/local/blobio
#	reboot-sync-remote
#
#	#  Called from cron-reboot
#	reboot-sync-remote
#  Note:
#	No safety value check for user blobio, which typically is controlled
#	by systemd or launchctl.
#
PROG=$(basename $0)
PKILL_USER=$(id -un)

log()
{
	echo "$(date +'%Y/%m/%d %H:%M:%S'): $PROG: $@"
}

die()
{
	log "ERROR: $@" >&2
	exit 1
}

test $# = 0 || die "wrong number of arguments: got $#, expected 0"

log 'hello, world'
trap 'log good bye, cruel world' EXIT

log "BLOBIO_ROOT=$BLOBIO_ROOT"

cd $BLOBIO_ROOT || die "cd $BLOBIO_ROOT failed: exit status=$?"

logr()
{
	log "$SYNC_NAME: $@"
}

dieh()
{
	die "$SYNC_NAME: $@"
}

find $BLOBIO_ROOT/sync/remote/ -mindepth 1 -maxdepth 1 -type d 		|
  while read SYNC_ROOT;  do
	log "sync root: $SYNC_ROOT"
	SYNC_NAME=$(basename $SYNC_ROOT)
	log "sync name: $SYNC_NAME"
	cd $SYNC_ROOT || dieh "cd $SYNC_ROOT failed: exit status=$?"

	FLOW_PATH=etc/sync-$SYNC_NAME.flow
	if [ ! -e $FLOW_PATH ];  then
		logr "WARN (ok): no config for flowd: $FLOW_PATH"
		continue
	fi

	#  attempt to zap lingering flowd
	if [ -r run/flowd.pid ];  then
		PID=$(head -1 run/flowd.pid)
		logr "run/flowd.pid exists: #$PID"
		kill $PID
		rm -f run/flowd.*
	fi

	log "starting sync flowd server: $SYNC_NAME ..."
	log "BLOBIO_ROOT for sync flowd: $SYNC_ROOT"
	BLOBIO_ROOT=$SYNC_ROOT flowd server etc/sync-$SYNC_NAME.flow &
	FLOWD_PID=$!
	log "flowd process id: $FLOWD_PID"
done