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intercept.js
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/*jshint node: true */
var inserted,
Module = require('module'),
fs = require('fs'),
existingExtFn = Module._extensions['.js'],
amdefineRegExp = /amdefine\.js/;
inserted = "if (typeof define !== 'function') {var define = require('amdefine')(module)}";
//From the node/lib/module.js source:
function stripBOM(content) {
// Remove byte order marker. This catches EF BB BF (the UTF-8 BOM)
// because the buffer-to-string conversion in `fs.readFileSync()`
// translates it to FEFF, the UTF-16 BOM.
if (content.charCodeAt(0) === 0xFEFF) {
content = content.slice(1);
}
return content;
}
//Also adapted from the node/lib/module.js source:
function intercept(module, filename) {
var content = stripBOM(fs.readFileSync(filename, 'utf8'));
if (!amdefineRegExp.test(module.id)) {
content = inserted + content;
}
module._compile(content, filename);
}
intercept._id = 'amdefine/intercept';
if (!existingExtFn._id || existingExtFn._id !== intercept._id) {
Module._extensions['.js'] = intercept;
}