file_system_monitor

TL;DR Command-line tool to run a command (and stop the old one) every time there's a filesystem change.

Take a command and a path, and run that command whenever there are any changes to those files. It kills previous invocations. It's like guard for anything. You never have to think "oh, I should run this," because what's running is always the latest thing.

It works especially well with IntelliJ's auto-save after x idle seconds (cmd + , then search for "save idle"), or any other auto-save IDE setting.

Intended for OSX.

Give me that!

brew tap mlbileschi/tap
brew install mlbileschi/tap/file_system_monitor
file_system_monitor --help

You may need to agree to the XCode TOS: sudo xcodebuild -license.

Examples

Continuously run mvn test, excluding any maven generated files:

file_system_monitor -i "." -e "target" -c "mvn test"

Continuously run pants test, excluding git and tmp pants files:

file_system_monitor \
    -i "." \
    -e ".git"
    -e ".pants.d" \
    -c "./pants test src/tests/java/com/mbileschi:fun_ml"

Feedback

Please let me know what you think! mlbileschi [at] gmail.com

Issues very welcome; pull requests even more welcome.