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var Immutable = require('immutable');
var THEME_PREFIX = require('../constants/themePrefix');
var LOADING_ORDER = ['plugin', 'theme'];
var TYPE_PLUGIN = 'plugin';
var TYPE_THEME = 'theme';
/**
* Returns the type of a plugin given its name
* @param {Plugin} plugin
* @return {String}
*/
function pluginType(plugin) {
var name = plugin.getName();
return (name && name.indexOf(THEME_PREFIX) === 0) ? TYPE_THEME : TYPE_PLUGIN;
}
/**
* Sort the list of installed plugins to match list in book.json
* The themes should always be loaded after the plugins
*
* @param {<OrderedMap<String:Plugin>>} plugins
* @return {OrderedMap<String:Plugin>}
*/
function sortPlugins(plugins) {
var byTypes = plugins.groupBy(pluginType);
return byTypes.get(TYPE_PLUGIN, Immutable.OrderedMap())
.merge(
byTypes.get(TYPE_THEME, Immutable.OrderedMap())
);
// Sort plugins to match list in book.json
return plugins.sort(function(a, b) {
// Get order from book.json
var definitionOrder = requirementsKeys.indexOf(a.getName()) < requirementsKeys.indexOf(b.getName());
// Get order from plugins a and b type
var aType = pluginType(a.getName()),
bType = pluginType(b.getName()),
loadingOrder = LOADING_ORDER.indexOf(aType) < LOADING_ORDER.indexOf(bType);
return loadingOrder || definitionOrder ? -1 : 1;
});
}
module.exports = sortPlugins;
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