Finding unused AMD imports with amdextract without Grunt or Gulp etc.

find-unused-amd-imports.js

#!/usr/bin/nodejs

// prerequisites: $ npm install -g amdextract@2.1.14

// Run this:
// $ export NODE_PATH=/usr/local/lib/node_modules # stupid nodejs
// $ find src/ -name '*.js' -not -path '*/vendor/*' -not -path '*/build/*' | bin/find-unused-amd-imports.js

var fs = require('fs');
var amdextract = require('amdextract');

// grab paths to scan from stdin
var paths = fs.readFileSync('/dev/stdin', { encoding: 'utf-8' }).split("\n");

for (var i = 0; i < paths.length; ++i) {
	var path = paths[i];

	if (!path) { continue; }

	var content = fs.readFileSync(path);
	var result = amdextract.parse(content);

	console.log(path + ':' + result.results.length + ' modules detected.');

	if (result.results.length === 0) {
		console.error(path, ' no module detected');
	}
	else if (result.results.length === 1) {
		if (result.results[0].unusedPaths.length > 0) {
			console.error('ERROR: ' + path + ' has unused: ' + result.results[0].unusedPaths.join(', '));
		}
	}
	else {
		throw new Error(path + ': > 1 modules detected');
	}
}