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Run source transform function on Node require


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Install and use

npm install --save node-hook

Before loading desired .js files, install hook

var hook = require('node-hook');
function logLoadedFilename(source, filename) {
    return 'console.log("' + filename + '");\n' + source;
hook.hook('.js', logLoadedFilename);
// prints fulle dummy.js filename, runs dummy.js 
hook.unhook('.js'); // removes your own transform 

remember: Nodejs caches compiled modules, so if the transform is not working, you might need to delete the cached entry in require.cache, then call require(filename) again to force reload.

Related: Node require replacement really-need.

You can hook several transformers thanks to the code submitted by djulien

Small print

Author: Gleb Bahmutov © 2013

License: MIT - do anything with the code, but don't blame me if it does not work.

Support: if you find any problems with this module, email / tweet / open issue on Github