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TiddlyWiki5/core/modules/upgraders/system.js
Jeremy Ruston 471b73158a Fix overeager alerts from core module overwrite upgrade warning
This fixes a bug in #3634, and refines the logic so that the warning is only given if the incoming tiddler exists as a shadow tiddler. (In my case I have several draft core modules inactive in my notes wiki and they were erroneously suppressed from the upgrade).
2019-08-28 14:44:46 +01:00

53 lines
1.5 KiB
JavaScript

/*\
title: $:/core/modules/upgraders/system.js
type: application/javascript
module-type: upgrader
Upgrader module that suppresses certain system tiddlers that shouldn't be imported
\*/
(function(){
/*jslint node: true, browser: true */
/*global $tw: false */
"use strict";
var DONT_IMPORT_LIST = ["$:/StoryList","$:/HistoryList"],
DONT_IMPORT_PREFIX_LIST = ["$:/temp/","$:/state/","$:/Import"],
WARN_IMPORT_PREFIX_LIST = ["$:/core/modules/"];
exports.upgrade = function(wiki,titles,tiddlers) {
var self = this,
messages = {},
showAlert = false;
// Check for tiddlers on our list
$tw.utils.each(titles,function(title) {
if(DONT_IMPORT_LIST.indexOf(title) !== -1) {
tiddlers[title] = Object.create(null);
messages[title] = $tw.language.getString("Import/Upgrader/System/Suppressed");
} else {
for(var t=0; t<DONT_IMPORT_PREFIX_LIST.length; t++) {
var prefix = DONT_IMPORT_PREFIX_LIST[t];
if(title.substr(0,prefix.length) === prefix) {
tiddlers[title] = Object.create(null);
messages[title] = $tw.language.getString("Import/Upgrader/State/Suppressed");
}
}
for(var t=0; t<WARN_IMPORT_PREFIX_LIST.length; t++) {
var prefix = WARN_IMPORT_PREFIX_LIST[t];
if(title.substr(0,prefix.length) === prefix && wiki.isShadowTiddler(title)) {
showAlert = true;
messages[title] = $tw.language.getString("Import/Upgrader/System/Warning");
}
}
}
});
if(showAlert) {
var logger = new $tw.utils.Logger("import");
logger.alert($tw.language.getString("Import/Upgrader/System/Alert"));
}
return messages;
};
})();