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TiddlyWiki5/core/modules/upgraders/plugins.js
Jermolene e386e26b2d Fix problems with $tw.utils.checkVersions()
Previous changes since 5.1.7 broke the documented semantics by no
longer returning true when the versions match. It affected the upgrade
process, making it impossible to upgrade to a later pre-release (ie
where the version numbers in the upgrade.html match those in the file
being upgraded).

Also reviewed and updated the calls to checkVersions.

@felixhayashi I think that this effectively reverts the change you
original submitted. Are you OK with it?
2015-02-12 23:04:20 +00:00

77 lines
2.6 KiB
JavaScript

/*\
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";
var BLOCKED_PLUGINS = {
"$:/themes/tiddlywiki/stickytitles": {
versions: ["*"]
},
"$:/plugins/tiddlywiki/fullscreen": {
versions: ["*"]
}
};
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 it is in the upgrade library
var libraryTiddler = getLibraryTiddler(title);
if(libraryTiddler && libraryTiddler["plugin-type"] && libraryTiddler.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/Version",{variables: {incoming: incomingTiddler.version, existing: existingTiddler.fields.version}});
return;
}
}
}
if(incomingTiddler && incomingTiddler["plugin-type"]) {
// Check whether the plugin is on the blocked list
var blockInfo = BLOCKED_PLUGINS[title];
if(blockInfo) {
if(blockInfo.versions.indexOf("*") !== -1 || (incomingTiddler.version && blockInfo.versions.indexOf(incomingTiddler.version) !== -1)) {
tiddlers[title] = Object.create(null);
messages[title] = $tw.language.getString("Import/Upgrader/Plugins/Suppressed/Incompatible");
return;
}
}
}
});
return messages;
};
})();