grouptools

#!/usr/bin/env node

/* useful hack to automatically group underscore features in the corresponding category
 ________________________________________________________________________________________
*/

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

var srcPath = path.join('.', 'src');

var collectionTools = '',
		arrayTools = '',
		objectTools = '',
		functionTools = '',
		utilityTools = '';
var counter = 0;

fs.readdir(srcPath, function (err, files) {

	if (err) throw err;

	files.forEach( function (fileName) {

		fs.lstat(path.join(srcPath, fileName), function (err, stats) {

			if (!stats.isDirectory()) {
				
				counter++;

				fs.readFile(path.join(srcPath, fileName), 'utf8', function (err, content) {

					counter--;
					
					if (err) {

						console.warn("can not read " + path.join(srcPath, fileName));
					}
					else {
						
						var toolName = fileName.replace('.js', '') ;

						if (content.indexOf("a collection's function") !== -1) collectionTools += '\nexport {default as _'+ toolName +'} from \'./'+ toolName +'\';';
						if (content.indexOf("an array's function") !== -1) arrayTools += '\nexport {default as _'+ toolName +'} from \'./'+ toolName +'\';';
						if (content.indexOf("an object's function") !== -1) objectTools += '\nexport {default as _'+ toolName +'} from \'./'+ toolName +'\';';
						if (content.indexOf("a function's function") !== -1) functionTools += '\nexport {default as _'+ toolName +'} from \'./'+ toolName +'\';';
						if (content.indexOf("an utility's function") !== -1) {
							utilityTools += '\nexport {default as _'+ toolName +'} from \'./'+ toolName +'\';';
							if (toolName === 'iteratee') utilityTools += '\nexport {_setIteratee} from \'./'+ toolName +'\';';
						}
						
						if (counter === 0 ) {
							
							// group tools in corresponding category files
							fs.writeFile(path.join(srcPath, '_collections.js'),
								'// Collection Functions \n// -------------------- \n'+ collectionTools,
								function (err) {
									if (err) throw err;
								}
							);
							fs.writeFile(path.join(srcPath, '_arrays.js'),
								'// Array Functions \n// --------------- \n'+ arrayTools,
								function (err) {
									if (err) throw err;
								}
							);
							fs.writeFile(path.join(srcPath, '_objects.js'),
								'// Object Functions \n// ---------------- \n'+ objectTools,
								function (err) {
									if (err) throw err;
								}
							);
							fs.writeFile(path.join(srcPath, '_functions.js'),
								'// Function (ahem) Functions \n// ------------------------- \n'+ functionTools,
								function (err) {
									if (err) throw err;
								}
							);
							fs.writeFile(path.join(srcPath, '_utilities.js'),
								'// Utility Functions \n// ----------------- \n'+ utilityTools,
								function (err) {
									if (err) throw err;
								}
							);
						}
					}
				});
			}
		});
	});
});