51 lines
1.5 KiB
JavaScript
51 lines
1.5 KiB
JavaScript
const fs = require('fs-extra');
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const SqliteConnectionPool = require('./SqliteConnectionPool');
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const log = new (require('../core/AppLogger'))().log;//singleton
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const migrations = {
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'app': require('./migrations/app'),
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'readerStorage': require('./migrations/readerStorage'),
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};
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class ConnManager {
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constructor() {
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this._pool = {};
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}
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async init(config) {
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this.config = config;
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const force = null;//(config.branch == 'development' ? 'last' : null);
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for (const poolConfig of this.config.db) {
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const dbFileName = this.config.dataDir + '/' + poolConfig.fileName;
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//бэкап
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if (await fs.pathExists(dbFileName))
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await fs.copy(dbFileName, `${dbFileName}.bak`);
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const connPool = new SqliteConnectionPool();
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await connPool.open(poolConfig.connCount, dbFileName);
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log(`Opened database "${poolConfig.poolName}"`);
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//миграции
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const migs = migrations[poolConfig.poolName];
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if (migs && migs.data.length) {
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const applied = await connPool.migrate(migs.data, migs.table, force);
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if (applied.length)
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log(`${applied.length} migrations applied to "${poolConfig.poolName}"`);
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}
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this._pool[poolConfig.poolName] = connPool;
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}
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}
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get pool() {
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return this._pool;
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}
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}
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const connManager = new ConnManager();
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module.exports = connManager; |