/*\ title: $:/core/modules/upgraders/plugins.js type: application/javascript module-type: upgrader Upgrader module that checks that plugins are newer than any already installed version \*/ (function(){ /*jslint node: true, browser: true */ /*global $tw: false */ "use strict"; var UPGRADE_LIBRARY_TITLE = "$:/UpgradeLibrary"; exports.upgrade = function(wiki,titles,tiddlers) { var self = this, messages = {}, upgradeLibrary, getLibraryTiddler = function(title) { if(!upgradeLibrary) { upgradeLibrary = wiki.getTiddlerData(UPGRADE_LIBRARY_TITLE,{}); upgradeLibrary.tiddlers = upgradeLibrary.tiddlers || {}; } return upgradeLibrary.tiddlers[title] }; // Go through all the incoming tiddlers $tw.utils.each(titles,function(title) { var incomingTiddler = tiddlers[title]; // Check if we're dealing with a plugin if(incomingTiddler && incomingTiddler["plugin-type"] && incomingTiddler["version"]) { // Upgrade the incoming plugin if we've got a newer version in the upgrade library var libraryTiddler = getLibraryTiddler(title); if(libraryTiddler && libraryTiddler["plugin-type"] && libraryTiddler["version"]) { if($tw.utils.checkVersions(libraryTiddler.version,incomingTiddler.version)) { tiddlers[title] = libraryTiddler; messages[title] = $tw.language.getString("Import/Upgrader/Plugins/Upgraded",{variables: {incoming: incomingTiddler.version, upgraded: libraryTiddler.version}}); return; } } // Suppress the incoming plugin if it is older than the currently installed one var existingTiddler = wiki.getTiddler(title); if(existingTiddler && existingTiddler.hasField("plugin-type") && existingTiddler.hasField("version")) { // Reject the incoming plugin by blanking all its fields if($tw.utils.checkVersions(existingTiddler.fields.version,incomingTiddler.version)) { tiddlers[title] = Object.create(null); messages[title] = $tw.language.getString("Import/Upgrader/Plugins/Suppressed",{variables: {incoming: incomingTiddler.version, existing: existingTiddler.fields.version}}); return; } } } }); return messages; }; })();