wappalyzer/bin/wappalyzer-validate-icons

#!/usr/bin/env node

var
	app,
	modulesPath = process.env.WAPPALYZER_NODE_PATH !== undefined ? process.env.WAPPALYZER_NODE_PATH + '/node_modules/' : '',
	fs          = require('fs'),
	fileType    = require(modulesPath + 'file-type'),
	readChunk   = require(modulesPath + 'read-chunk')
	json        = require(process.env.WAPPALYZER_ROOT + '/src/apps.json');

for ( app in json.apps ) {
	(function(app) {
		var path = process.env.WAPPALYZER_ROOT + '/src/icons/' + app + '.png';

		fs.exists(path, function(exists) {
			var buffer;

			if ( exists ) {
				buffer = fileType(readChunk.sync(path, 0, 262));

				if ( buffer.mime !== 'image/png' ) {
					throw new Error('Incorrect mimetype "' + buffer.mime + '": src/icons/' + app + '.png');
				}
			} else {
				throw new Error('Missing file: src/icons/' + app + '.png');
			}
		});
	}(app));
};