calebthebrewer/gulp-selectors

var _ = require('lodash');

module.exports = {
    extendDefaults: extendDefaults,
    getForExtension: getProcessorsForExtension
};

function extendDefaults(processors) {

    processors = _.extend({
        css: ['css'],
        html: ['html']
    }, processors);

    return processors;
}

function getProcessorsForExtension(processors, extension) {
    var selectedProcessors = [];

    for (var processor in processors) {
        if (typeof processors[processor] === 'object' &&
            processors[processor].indexOf(extension) > -1) {
            switch (processor) {
                //these guys are special since they're built in
                case 'css':
                case 'html':
                case 'js-strings':
                case 'remove-unused':
                    selectedProcessors.push(require('../processors/' + processor));
                    break;
                default:
                    selectedProcessors.push(require(processor));
            }
        }
    }

    return selectedProcessors;
}