112 lines
3.1 KiB
JavaScript
112 lines
3.1 KiB
JavaScript
'use strict';
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var async = require('async');
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var fs = require('graceful-fs');
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var glob = require('glob');
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var path = require('path');
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var config = require('../config');
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var Logger = require('../logger');
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function applyPatch(db, file, callback) {
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Logger.tag('database', 'migration').info('Checking if patch need to be applied: %s', file);
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fs.readFile(file, function (err, contents) {
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if (err) {
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return callback(err);
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}
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var version = path.basename(file, '.sql');
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db.get('SELECT * FROM schema_version WHERE version = ?', version, function (err, row) {
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if (err) {
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return callback(err);
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}
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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 callback(null);
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}
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var 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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db.exec(sql, function (err) {
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if (err) {
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return callback(err);
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}
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Logger.tag('database', 'migration').info('Patch successfully applied: %s', file);
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callback(null);
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});
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});
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});
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}
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function applyMigrations(db, callback) {
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Logger.tag('database', 'migration').info('Migrating database...');
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var 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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db.exec(sql, function (err) {
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if (err) {
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return callback(err);
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}
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glob(__dirname + '/patches/*.sql', function (err, files) {
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if (err) {
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return callback(err);
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}
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async.eachSeries(
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files,
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function (file, fileCallback) {
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applyPatch(db, file, fileCallback);
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},
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callback
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);
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});
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});
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}
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module.exports = {
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init: function (callback) {
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var SQLite3 = require('sqlite3');
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var file = config.server.databaseFile;
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Logger.tag('database').info('Setting up database: %s', file);
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var 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', function (sql, time) {
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Logger.tag('database').profile('[%sms]\t%s', time, sql);
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});
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applyMigrations(db, function (err) {
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if (err) {
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Logger.tag('database').error('Error migrating database:', err);
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throw err;
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}
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angular.module('ffffng').factory('Database', function () {
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return db;
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});
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callback();
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});
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}
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};
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