fswatch is a great way to monitor for local file system changes, and then act upon them. This is similar to my “FMDMS” utility that I had made a while back.
Use case:
I develop locally, but sometimes I want to see those changes on a remote test server as I work. I keep a sync.bash script in each project that I want to test on a remote server. When I’m ready, I execute sync.bash locally.
Example:
In prior articles, I made extensive use of Docker for local development and remote deployment. When I’m working on a project that will run via Docker Compose, I place everything inside of /srv/ on the remote side, and can expect to see the same results on a remote system that I do on my development machine. From there, I can extend Docker Compose with multiple files (includes have been registered as a GitHub issue), and to differentiate between my Development and Production environments.
You could also add --delete-excluded as an argument to rsync, but when I’m working with systems where a database might exist in both locations, I want to exclude the file(s), but not delete them on the remote side.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 | #!/usr/bin/env bashshopt -s expand_aliases# Determine core paths################################################################################SOURCE="${BASH_SOURCE[0]}" # Dave Dopson, Thank You! - http://stackoverflow.com/questions/59895/can-a-bash-script-tell-what-directory-its-stored-inwhile [ -h "$SOURCE" ]; do # resolve $SOURCE until the file is no longer a symlink SCRIPTPATH="$( cd -P "$( dirname "$SOURCE" )" && pwd )" SOURCE="$(readlink "$SOURCE")" [[ $SOURCE != /* ]] && SOURCE="$SCRIPTPATH/$SOURCE" # if $SOURCE was a relative symlink, we need to resolve it relative to the path where the symlink file was locateddone################################################################################SCRIPTPATH="$( cd -P "$( dirname "$SOURCE" )" && pwd )"SCRIPTNAME=`basename "$SOURCE"`################################################################################ fsSrc="${SCRIPTPATH}/"fsDest='USER@SERVER:~/srv/'alias run_rsync="rsync \ --progress \ --partial \ --archive \ --verbose \ --compress \ --delete \ --keep-dirlinks \ --rsh=/usr/bin/ssh \ \ --exclude 'sync.bash' \ --exclude '.*/' \ --exclude '.*' \ --exclude 'tmp/' \ --exclude 'ignore/' \ \ '${fsSrc}' \ '${fsDest}' \ "run_rsync; fswatch \ --print0 \ --one-per-batch \ --recursive \ "${fsSrc}" | while read -d "" event; do run_rsync; done |
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