57 lines
2.0 KiB
JavaScript
57 lines
2.0 KiB
JavaScript
'use strict';
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// As of v14, Node.js does not exit when there is an unhandled Promise rejection. Convert an
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// unhandled rejection into an uncaught exception, which does cause Node.js to exit.
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process.on('unhandledRejection', (err) => { throw err; });
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(async () => {
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// This script requires that you have modified your settings.json file
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// to work with a real database. Please make a backup of your dirty.db
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// file before using this script, just to be safe.
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// It might be necessary to run the script using more memory:
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// `node --max-old-space-size=4096 src/bin/migrateDirtyDBtoRealDB.js`
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const dirtyDb = require('dirty');
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const log4js = require('log4js');
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const settings = require('../node/utils/Settings');
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const ueberDB = require('ueberdb2');
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const util = require('util');
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const dbWrapperSettings = {
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cache: '0', // The cache slows things down when you're mostly writing.
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writeInterval: 0, // Write directly to the database, don't buffer
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};
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const db = new ueberDB.database( // eslint-disable-line new-cap
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settings.dbType,
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settings.dbSettings,
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dbWrapperSettings,
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log4js.getLogger('ueberDB'));
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await db.init();
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console.log('Waiting for dirtyDB to parse its file.');
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const dirty = dirtyDb(`${__dirname}/../../var/dirty.db`);
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const length = await new Promise((resolve) => { dirty.once('load', resolve); });
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console.log(`Found ${length} records, processing now.`);
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const p = [];
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let numWritten = 0;
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dirty.forEach((key, value) => {
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let bcb, wcb;
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p.push(new Promise((resolve, reject) => {
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bcb = (err) => { if (err != null) return reject(err); };
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wcb = (err) => {
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if (err != null) return reject(err);
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if (++numWritten % 100 === 0) console.log(`Wrote record ${numWritten} of ${length}`);
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resolve();
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};
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}));
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db.set(key, value, bcb, wcb);
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});
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await Promise.all(p);
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console.log(`Wrote all ${numWritten} records`);
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await util.promisify(db.close.bind(db))();
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console.log('Finished.');
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})();
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