fswatcher is a tool to listen for filesystem changes using inotify events. See for more info : http://man7.org/linux/man-pages/man7/inotify.7.html
NOTE : It is currently only working for unix based OS !
glide install && make
root@22f4580a3b27:/go/src/github.com/nmaupu/fswatcher# ./bin/fswatcher --help
Usage: fswatcher [OPTIONS] TARGET
Watch filesystem events using inotify
Available events:
IN_ACCESS : File was accessed (read).
IN_MODIFY : File was modified.
IN_CLOSE_WRITE : File opened for writing was closed.
IN_OPEN : File was opened.
IN_MOVED_FROM : File moved out of watched directory.
IN_DELETE_SELF : Watched file/directory was itself deleted.
IN_ATTRIB : Metadata changed, e.g., permissions, timestamps, extended attributes, link count (since Linux 2.6.25), UID, GID, etc.
IN_CLOSE_NOWRITE : File not opened for writing was closed.
IN_MOVED_TO : File moved into watched directory.
IN_CREATE : File/directory created in watched directory.
IN_DELETE : File/directory deleted from watched directory.
IN_MOVE_SELF : Watched file/directory was itself moved.
Use %f for file/directory name, %e for event name in command arguments
Arguments:
TARGET="" file or directory to listen for provided events
Options:
-v, --version Show the version and exit
-c, --command, --cmd="" Command to execute when receiving a matching event
-e, --event=[] Events to listen to
# ./bin/fswatcher -c "/tmp/script.sh %f" -e IN_CLOSE_WRITE -e IN_MOVED_TO /tmp/test
2017/10/12 21:38:01 Listening events [IN_CLOSE_WRITE IN_MOVED_TO] from /tmp/test
In the command parameters, it's possible to get information on the event :
%ecan be used to get the event name%fcan be used to get the file name/directory name source of the event
Now, pop an event !
echo 42 >> /tmp/test/toto
We can now see in the console :
2017/10/12 21:38:33 Event received notify.InCloseWrite: "/tmp/test/toto" - executing /tmp/script.sh [/tmp/test/toto]