Compile and run a coffeescript file on node.js on change

Question

I am currently using this node.js command to watch coffeescript files for changes and compile them to a folder:

coffee -cwo ./js ./src

I wonder if there is a way to watch a folder/files for changes and if there is a change, run a compiled js file.

In this way I don't have to manually run "coffee file.coffee" each time I made a change in coffeescript files.

Trevor Burnham · Accepted Answer · 2011-09-29 02:04:13Z

3

You can either save the compiled JS or run it with a single coffee command, but not both. The command to run the .coffee files in src every time they change is simply

coffee -w src

For more complex compilation needs, you should write a Cakefile. Check out the one in sstephenson's node-coffee-project, for instance. That way, you can customize the whole compilation pipeline for your project's needs, e.g. compile -> run tests -> run the project if tests passed.

edited Sep 29, 2011 at 2:04

answered Sep 29, 2011 at 0:05

Trevor Burnham

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1 Comment

ajsie Over a year ago

Actually that was really helpful. I run both commands and now when I change the CS files the ./js files will be changed, and when they are changed the other command is running the changed file.

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