78 lines
1.4 KiB
JavaScript
78 lines
1.4 KiB
JavaScript
'use strict';
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const assert = require('assert');
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const bcoin = require('../');
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let file = process.argv[2];
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let db, batch;
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assert(typeof file === 'string', 'Please pass in a database path.');
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file = file.replace(/\.ldb\/?$/, '');
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db = bcoin.ldb({
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location: file,
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db: 'leveldb',
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compression: true,
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cacheSize: 32 << 20,
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createIfMissing: false,
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bufferKeys: true
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});
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async function updateVersion() {
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let bak = `${process.env.HOME}/walletdb-bak-${Date.now()}.ldb`;
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let data, ver;
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console.log('Checking version.');
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data = await db.get('V');
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assert(data, 'No version.');
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ver = data.readUInt32LE(0, true);
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if (ver !== 4)
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throw Error(`DB is version ${ver}.`);
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console.log('Backing up DB to: %s.', bak);
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await db.backup(bak);
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ver = Buffer.allocUnsafe(4);
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ver.writeUInt32LE(5, 0, true);
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batch.put('V', ver);
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}
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async function updateTXDB() {
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let i, keys, key;
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keys = await db.keys({
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gte: Buffer.from([0x00]),
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lte: Buffer.from([0xff])
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});
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for (i = 0; i < keys.length; i++) {
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key = keys[i];
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switch (key[0]) {
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case 0x62: // b
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case 0x63: // c
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case 0x65: // e
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case 0x74: // t
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batch.del(key);
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break;
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}
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}
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await batch.write();
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}
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(async () => {
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await db.open();
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batch = db.batch();
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console.log('Opened %s.', file);
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await updateVersion();
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await updateTXDB();
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await db.close();
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})().then(() => {
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console.log('Migration complete.');
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process.exit(0);
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});
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