81 lines
2.3 KiB
JavaScript
81 lines
2.3 KiB
JavaScript
'use strict';
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const util = require('util');
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const fs = require('graceful-fs');
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const glob = util.promisify(require('glob'));
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const path = require('path');
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const config = require('../config').config;
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const Logger = require('../logger');
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async function applyPatch(db, file) {
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Logger.tag('database', 'migration').info('Checking if patch need to be applied: %s', file);
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const contents = await util.promisify(fs.readFile)(file);
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const version = path.basename(file, '.sql');
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const row = await db.get('SELECT * FROM schema_version WHERE version = ?', version);
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if (row) {
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// patch is already applied. skip!
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Logger.tag('database', 'migration').info('Patch already applied, skipping: %s', file);
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return
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}
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const sql = 'BEGIN TRANSACTION;\n' +
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contents.toString() + '\n' +
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'INSERT INTO schema_version (version) VALUES (\'' + version + '\');\n' +
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'END TRANSACTION;';
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await db.exec(sql);
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Logger.tag('database', 'migration').info('Patch successfully applied: %s', file);
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}
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async function applyMigrations(db) {
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Logger.tag('database', 'migration').info('Migrating database...');
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const sql = 'BEGIN TRANSACTION; CREATE TABLE IF NOT EXISTS schema_version (\n' +
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' version VARCHAR(255) PRIMARY KEY ASC,\n' +
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' applied_at DATETIME DEFAULT CURRENT_TIMESTAMP NOT NULL\n' +
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'); END TRANSACTION;';
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await db.exec(sql);
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const files = await glob(__dirname + '/patches/*.sql');
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for (const file of files) {
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await applyPatch(db, file)
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}
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}
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async function init() {
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const SQLite3 = require('sqlite3');
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const file = config.server.databaseFile;
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Logger.tag('database').info('Setting up database: %s', file);
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let db;
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try {
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db = new SQLite3.Database(file);
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}
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catch (error) {
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Logger.tag('database').error('Error initialzing database:', error);
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throw error;
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}
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db.on('profile', (sql, time) => Logger.tag('database').profile('[%sms]\t%s', time, sql));
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try {
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await applyMigrations(db);
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}
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catch (error) {
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Logger.tag('database').error('Error migrating database:', error);
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throw error;
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}
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module.exports.db = db;
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}
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module.exports = {
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init
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};
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