80 lines
1.6 KiB
JavaScript
80 lines
1.6 KiB
JavaScript
var assert = require('assert');
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var bcoin = require('../');
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var BufferWriter = require('../lib/utils/writer');
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var BufferReader = require('../lib/utils/reader');
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var util = require('../lib/utils/util');
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var co = bcoin.co;
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var file = process.argv[2];
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var 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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var updateVersion = co(function* updateVersion() {
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var bak = process.env.HOME + '/walletdb-bak-' + Date.now() + '.ldb';
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var data, ver;
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console.log('Checking version.');
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data = yield 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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yield db.backup(bak);
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ver = new Buffer(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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var updateTXDB = co(function* updateTXDB() {
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var i, keys, key;
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keys = yield db.keys({
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gte: new Buffer([0x00]),
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lte: new Buffer([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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yield batch.write();
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});
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co.spawn(function* () {
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yield db.open();
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batch = db.batch();
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console.log('Opened %s.', file);
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yield updateVersion();
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yield updateTXDB();
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yield db.close();
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}).then(function() {
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console.log('Migration complete.');
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process.exit(0);
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});
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