umami/scripts/migrate-db.js
2023-01-16 12:14:50 -08:00

278 lines
8.5 KiB
JavaScript

/* eslint-disable no-console */
require('dotenv').config();
const fs = require('fs');
const path = require('path');
const { PrismaClient } = require('@prisma/client');
const chalk = require('chalk');
const { execSync } = require('child_process');
const prompts = require('prompts');
const prisma = new PrismaClient();
function getDatabaseType(url = process.env.DATABASE_URL) {
const type = process.env.DATABASE_TYPE || (url && url.split(':')[0]);
if (type === 'postgres') {
return 'postgresql';
}
return type;
}
const databaseType = getDatabaseType();
function success(msg) {
console.log(chalk.greenBright(`${msg}`));
}
function error(msg) {
console.log(chalk.redBright(`${msg}`));
}
async function checkEnv() {
if (!process.env.DATABASE_URL) {
throw new Error('DATABASE_URL is not defined.');
} else {
success('DATABASE_URL is defined.');
}
}
async function checkConnection() {
try {
await prisma.$connect();
success('Database connection successful.');
} catch (e) {
throw new Error('Unable to connect to the database.');
}
}
async function checkV1Tables(databaseType) {
try {
await prisma.$queryRaw`select * from _prisma_migrations where migration_name = '04_add_uuid' and finished_at IS NOT NULL`;
console.log('Preparing v1 tables for migration');
// alter v1 tables
await dropV1Keys(databaseType);
await dropV1Indexes(databaseType);
await renameV1Tables(databaseType);
success('Database v1 tables ready for migration.');
} catch (e) {
error('Database v1 tables is not up to date.');
}
}
async function checkV2Tables() {
try {
await prisma.$queryRaw`select * from website_event limit 1`;
success('Database v2 tables found.');
} catch (e) {
console.log('Database v2 tables not found.');
console.log('Adding v2 tables...');
// run v2 prisma migration steps
await runSqlFile('../prisma/migrations/01_init/migration.sql');
console.log(execSync('prisma migrate resolve --applied 01_init').toString());
}
}
async function checkMigrationReady() {
try {
await prisma.$queryRaw`select * from website_event limit 1`;
await prisma.$queryRaw`select * from v1_account limit 1`;
success('Database is ready for migration.');
} catch (e) {
throw new Error('Database is not ready for migration.');
}
}
async function migrateData() {
const filePath = `../prisma/migration_v2.sql`;
console.log('Starting v2 data migration. Please do no cancel this process, it may take a while.');
await runSqlFile(filePath);
success('Data migration from V1 to V2 tables completed.');
}
async function dropV1Keys(databaseType) {
try {
// drop keys
if (databaseType === 'postgresql') {
await prisma.$transaction([
prisma.$executeRaw`ALTER TABLE IF EXISTS _prisma_migrations DROP CONSTRAINT IF EXISTS _prisma_migrations_pkey CASCADE;`,
prisma.$executeRaw`ALTER TABLE IF EXISTS account DROP CONSTRAINT IF EXISTS account_pkey CASCADE;`,
prisma.$executeRaw`ALTER TABLE IF EXISTS event DROP CONSTRAINT IF EXISTS event_pkey CASCADE;`,
prisma.$executeRaw`ALTER TABLE IF EXISTS session DROP CONSTRAINT IF EXISTS session_pkey CASCADE;`,
prisma.$executeRaw`ALTER TABLE IF EXISTS website DROP CONSTRAINT IF EXISTS website_pkey CASCADE;`,
]);
} else {
await prisma.$transaction([
prisma.$executeRaw`ALTER TABLE session DROP FOREIGN KEY session_website_id_fkey;`,
prisma.$executeRaw`ALTER TABLE website DROP FOREIGN KEY website_user_id_fkey;`,
]);
}
success('Dropped v1 database keys.');
} catch (e) {
console.log(e);
error('Failed to drop v1 database keys.');
process.exit(1);
}
}
async function dropV1Indexes(databaseType) {
try {
// drop indexes
if (databaseType === 'postgresql') {
await prisma.$transaction([
prisma.$executeRaw`DROP INDEX IF EXISTS session_session_id_key;`,
prisma.$executeRaw`DROP INDEX IF EXISTS session_created_at_idx;`,
prisma.$executeRaw`DROP INDEX IF EXISTS session_website_id_idx;`,
prisma.$executeRaw`DROP INDEX IF EXISTS website_website_id_key;`,
prisma.$executeRaw`DROP INDEX IF EXISTS website_share_id_key;`,
prisma.$executeRaw`DROP INDEX IF EXISTS website_created_at_idx;`,
prisma.$executeRaw`DROP INDEX IF EXISTS website_share_id_idx;`,
prisma.$executeRaw`DROP INDEX IF EXISTS website_user_id_idx;`,
]);
} else {
await prisma.$transaction([
prisma.$executeRaw`DROP INDEX session_created_at_idx ON session;`,
prisma.$executeRaw`DROP INDEX session_website_id_idx ON session;`,
prisma.$executeRaw`DROP INDEX website_user_id_idx ON website;`,
prisma.$executeRaw`DROP INDEX website_share_id_key ON website;`,
]);
}
success('Dropped v1 database indexes.');
} catch (e) {
console.log(e);
error('Failed to drop v1 database indexes.');
process.exit(1);
}
}
async function renameV1Tables(databaseType) {
try {
// rename tables
if (databaseType === 'postgresql') {
await prisma.$transaction([
prisma.$executeRaw`ALTER TABLE IF EXISTS _prisma_migrations RENAME TO v1_prisma_migrations;`,
prisma.$executeRaw`ALTER TABLE IF EXISTS account RENAME TO v1_account;`,
prisma.$executeRaw`ALTER TABLE IF EXISTS event RENAME TO v1_event;`,
prisma.$executeRaw`ALTER TABLE IF EXISTS event_data RENAME TO v1_event_data;`,
prisma.$executeRaw`ALTER TABLE IF EXISTS pageview RENAME TO v1_pageview;`,
prisma.$executeRaw`ALTER TABLE IF EXISTS session RENAME TO v1_session;`,
prisma.$executeRaw`ALTER TABLE IF EXISTS website RENAME TO v1_website;`,
]);
} else {
await prisma.$transaction([
prisma.$executeRaw`RENAME TABLE _prisma_migrations TO v1_prisma_migrations;`,
prisma.$executeRaw`RENAME TABLE account TO v1_account;`,
prisma.$executeRaw`RENAME TABLE event TO v1_event;`,
prisma.$executeRaw`RENAME TABLE event_data TO v1_event_data;`,
prisma.$executeRaw`RENAME TABLE pageview TO v1_pageview;`,
prisma.$executeRaw`RENAME TABLE session TO v1_session;`,
prisma.$executeRaw`RENAME TABLE website TO v1_website;`,
]);
}
success('Renamed v1 database tables.');
} catch (e) {
console.log(e);
error('Failed to rename v1 database tables.');
process.exit(1);
}
}
async function deleteV1TablesPrompt() {
const response = await prompts({
type: 'text',
name: 'value',
message: 'Do you want to delete V1 database tables? (Y/N)',
validate: value =>
value.toUpperCase() !== 'Y' && value.toUpperCase() !== 'N' ? `Please enter Y or N.` : true,
});
if (response.value.toUpperCase() == 'Y') {
await deleteV1Tables();
}
success('Migration successfully completed.');
}
async function deleteV1Tables() {
try {
// drop tables
await prisma.$transaction([
prisma.$executeRaw`DROP TABLE IF EXISTS v1_prisma_migrations;`,
prisma.$executeRaw`DROP TABLE IF EXISTS v1_event_data;`,
prisma.$executeRaw`DROP TABLE IF EXISTS v1_event;`,
prisma.$executeRaw`DROP TABLE IF EXISTS v1_pageview;`,
prisma.$executeRaw`DROP TABLE IF EXISTS v1_session;`,
prisma.$executeRaw`DROP TABLE IF EXISTS v1_website;`,
prisma.$executeRaw`DROP TABLE IF EXISTS v1_account;`,
]);
success('Dropped v1 database tables.');
} catch (e) {
console.log(e);
throw new Error('Failed to drop v1 database tables.');
}
}
async function runSqlFile(filePath) {
try {
const rawSql = await fs.promises.readFile(path.join(__dirname, filePath));
const sqlStatements = rawSql
.toString()
.split('\n')
.filter(line => !line.startsWith('--')) // remove comments-only lines
.join('\n')
.replace(/\r\n|\n|\r/g, ' ') // remove newlines
.replace(/\s+/g, ' ') // excess white space
.split(';');
for (const sql of sqlStatements) {
if (sql.length > 0) {
await prisma.$executeRawUnsafe(sql);
}
}
filePath;
success(`Ran sql file ${filePath}.`);
} catch (e) {
console.log(e);
throw new Error(`Failed to run sql file ${filePath}.`);
}
}
(async () => {
let err = false;
for (let fn of [
checkEnv,
checkConnection,
checkV1Tables,
checkV2Tables,
checkMigrationReady,
migrateData,
deleteV1TablesPrompt,
]) {
try {
fn.name === 'checkV1Tables' ? await fn(databaseType) : await fn();
} catch (e) {
error(e.message);
err = true;
} finally {
await prisma.$disconnect();
if (err) {
process.exit(1);
}
}
}
})();