64 lines
1.9 KiB
TypeScript
64 lines
1.9 KiB
TypeScript
import {
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Kysely,
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Migrator,
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PostgresDialect,
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FileMigrationProvider
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} from 'npm:kysely'
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/// <reference types="npm:@types/pg" />
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import pg from "npm:pg";
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import { Database } from "./scheme.ts"
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import { CompiledConfig } from "../cfg/config.ts";
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export type SetupDbOutput = {
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pool: pg.Pool,
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db: Kysely<Database>,
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}
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export const setupDB = async (cfg: CompiledConfig): Promise<SetupDbOutput> => {
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console.log("creating db instance: ", cfg.pgPoolCfg)
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const pool = new pg.Pool(cfg.pgPoolCfg)
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const dialect = new PostgresDialect({ pool })
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const db = new Kysely<Database>({ dialect })
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if (cfg.migrationCfg?.applyMigrations) {
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console.log("applying db migrations", cfg.migrationCfg.migrationsPath)
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const migrator = new Migrator({
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db,
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provider: new FileMigrationProvider({
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fs: {
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readdir(path) {
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return Promise.resolve(
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[...Deno.readDirSync(path)].map((file) => file.name)
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)
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},
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},
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path: {
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join(...path) {
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return path.join('/')
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},
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},
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migrationFolder: cfg.migrationCfg.migrationsPath,
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}),
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allowUnorderedMigrations: true
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})
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const { error, results } = await migrator.migrateToLatest()
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results?.forEach((it) => {
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if (it.status === 'Success') {
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console.log(`migration "${it.migrationName}" was executed successfully`)
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} else if (it.status === 'Error') {
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console.error(`failed to execute migration "${it.migrationName}"`)
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}
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})
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if (error) {
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console.error('failed to migrate')
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console.error(error)
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throw error
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}
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}
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return { pool, db }
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}
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