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TiddlyWiki5/core/modules/utils/edition-info.js

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/*\
title: $:/core/modules/utils/edition-info.js
type: application/javascript
module-type: utils-node
Information about the available editions
\*/
(function(){
/*jslint node: true, browser: true */
/*global $tw: false */
"use strict";
var fs = require("fs"),
path = require("path");
var editionInfo;
exports.getEditionInfo = function() {
if(!editionInfo) {
// Enumerate the edition paths
var editionPaths = $tw.getLibraryItemSearchPaths($tw.config.editionsPath,$tw.config.editionsEnvVar);
editionInfo = {};
for(var editionIndex=0; editionIndex<editionPaths.length; editionIndex++) {
var editionPath = editionPaths[editionIndex];
// Enumerate the folders
var entries = fs.readdirSync(editionPath);
for(var entryIndex=0; entryIndex<entries.length; entryIndex++) {
var entry = entries[entryIndex];
// Check if directories have a valid tiddlywiki.info
if(!editionInfo[entry] && $tw.utils.isDirectory(path.resolve(editionPath,entry))) {
var info;
try {
info = JSON.parse(fs.readFileSync(path.resolve(editionPath,entry,"tiddlywiki.info"),"utf8"));
} catch(ex) {
}
if(info) {
editionInfo[entry] = info;
}
}
}
}
}
return editionInfo;
};
})();