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TiddlyWiki5/core/modules/commands/savelibrarytiddlers.js
Jeremy Ruston 82c8fe7fa8
Introduce JSON parse utility function with error handling (#6401)
* Introduce JSON parse utility function with error handling

Fixes #6400

* Fix typo
2022-02-21 15:29:25 +00:00

99 lines
3.1 KiB
JavaScript

/*\
title: $:/core/modules/commands/savelibrarytiddlers.js
type: application/javascript
module-type: command
Command to save the subtiddlers of a bundle tiddler as a series of JSON files
--savelibrarytiddlers <tiddler> <tiddler-filter> <pathname> <skinnylisting>
The tiddler identifies the bundle tiddler that contains the subtiddlers.
The tiddler filter specifies the plugins to be included.
The pathname specifies the pathname to the folder in which the JSON files should be saved. The filename is the URL encoded title of the subtiddler.
The skinnylisting specifies the title of the tiddler to which a JSON catalogue of the subtiddlers will be saved. The JSON file contains the same data as the bundle tiddler but with the `text` field removed.
\*/
(function(){
/*jslint node: true, browser: true */
/*global $tw: false */
"use strict";
exports.info = {
name: "savelibrarytiddlers",
synchronous: true
};
var Command = function(params,commander,callback) {
this.params = params;
this.commander = commander;
this.callback = callback;
};
Command.prototype.execute = function() {
if(this.params.length < 2) {
return "Missing filename";
}
var self = this,
fs = require("fs"),
path = require("path"),
containerTitle = this.params[0],
filter = this.params[1],
basepath = this.params[2],
skinnyListTitle = this.params[3];
// Get the container tiddler as data
var containerData = self.commander.wiki.getTiddlerDataCached(containerTitle,undefined);
if(!containerData) {
return "'" + containerTitle + "' is not a tiddler bundle";
}
// Filter the list of plugins
var pluginList = [];
$tw.utils.each(containerData.tiddlers,function(tiddler,title) {
pluginList.push(title);
});
var filteredPluginList;
if(filter) {
filteredPluginList = self.commander.wiki.filterTiddlers(filter,null,self.commander.wiki.makeTiddlerIterator(pluginList));
} else {
filteredPluginList = pluginList;
}
// Iterate through the plugins
var skinnyList = [];
$tw.utils.each(filteredPluginList,function(title) {
var tiddler = containerData.tiddlers[title];
// Save each JSON file and collect the skinny data
var pathname = path.resolve(self.commander.outputPath,basepath + encodeURIComponent(title) + ".json");
$tw.utils.createFileDirectories(pathname);
fs.writeFileSync(pathname,JSON.stringify(tiddler),"utf8");
// Collect the skinny list data
var pluginTiddlers = $tw.utils.parseJSONSafe(tiddler.text),
readmeContent = (pluginTiddlers.tiddlers[title + "/readme"] || {}).text,
doesRequireReload = !!self.commander.wiki.doesPluginInfoRequireReload(pluginTiddlers),
iconTiddler = pluginTiddlers.tiddlers[title + "/icon"] || {},
iconType = iconTiddler.type,
iconText = iconTiddler.text,
iconContent;
if(iconType && iconText) {
iconContent = $tw.utils.makeDataUri(iconText,iconType);
}
skinnyList.push($tw.utils.extend({},tiddler,{
text: undefined,
readme: readmeContent,
"requires-reload": doesRequireReload ? "yes" : "no",
icon: iconContent
}));
});
// Save the catalogue tiddler
if(skinnyListTitle) {
self.commander.wiki.setTiddlerData(skinnyListTitle,skinnyList);
}
return null;
};
exports.Command = Command;
})();