reflex

Watch a directory and rerun a command when certain files change. More information: https://github.com/cespare/reflex.

• Rebuild with make if any file changes:

reflex make

• Compile and run Go application if any .go file changes:

reflex --regex='\.go$' go run .

• Ignore a directory when watching for changes:

reflex --inverse-regex='^dir/' command

• Run command when reflex starts and restarts on file changes:

reflex --start-service=true command

• Substitute the filename that changed in:

reflex -- echo {}