sync.sh

#!/bin/bash

set -e -o pipefail
container_ids=$(docker ps --format "{{.ID}}")

for container_id in $container_ids; do
  volumes=$(docker inspect $container_id | jq -c '.[0].Mounts[] | select(.Type=="bind") | {Source: .Source, Destination: .Destination}')
  for volume in $volumes; do
    echo "Watch $container_id $volume"

    src_dir=$(echo $volume | jq -r '.Source')
    if [ ! -d "$src_dir" ]; then
      continue
    fi
    src_dir=$(readlink -f "$src_dir")
    dst_dir=$(echo $volume | jq -r '.Destination')
    fswatch "$src_dir" --event Updated --event Created --latency=10 | while read src_path; do
      dst_path="${src_path/$src_dir/$dst_dir}"
      docker exec $container_id touch -c "$dst_path"
      echo "touch $dst_path"
    done &
  done
done

trap "kill $(jobs -p)" TERM
wait