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node-red/red/runtime/storage/localfilesystem/settings.js

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/**
* Copyright JS Foundation and other contributors, http://js.foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
**/
var when = require('when');
var fs = require('fs-extra');
var fspath = require("path");
var log = require("../../log");
var util = require("./util");
var globalSettingsFile;
var settings;
module.exports = {
init: function(_settings) {
settings = _settings;
globalSettingsFile = fspath.join(settings.userDir,".config.json");
},
getSettings: function() {
return when.promise(function(resolve,reject) {
fs.readFile(globalSettingsFile,'utf8',function(err,data) {
if (!err) {
try {
return resolve(util.parseJSON(data));
} catch(err2) {
log.trace("Corrupted config detected - resetting");
}
}
return resolve({});
})
})
},
saveSettings: function(newSettings) {
if (settings.readOnly) {
return when.resolve();
}
return util.writeFile(globalSettingsFile,JSON.stringify(newSettings,null,1));
}
}