kanel-knex/build/generateMigrationCheck.js

Knex extension for Kanel

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const knex_1 = __importDefault(require("knex"));
const path_1 = require("path");
const knexImport_1 = __importDefault(require("./knexImport"));
const generateMigrationCheck = async (outputAcc, instantiatedConfig) => {
    const connection = instantiatedConfig.connection;
    const db = (0, knex_1.default)({ client: "postgres", connection });
    const [{ name: sourceMigration }] = await db
        .select("name")
        .from("knex_migrations")
        .orderBy("migration_time", "DESC")
        .limit(1);
    db.destroy();
    const typeImports = [knexImport_1.default];
    const lines = [
        "/** This is the migration that was set when the types were generated. */",
        `export const sourceMigration = '${sourceMigration}';`,
        "",
        "/** Gets the migration in the live database */",
        "export const getCurrentMigration = async (knex: Knex): Promise<string> => {",
        "  const [{ name }] = await knex",
        "    .select('name')",
        "    .from('knex_migrations')",
        "    .orderBy('migration_time', 'DESC')",
        "    .limit(1);",
        "  return name;",
        "};",
        "",
        "/** Check that the migration in the live database matches the code */",
        "export const validateMigration = async (knex: Knex): Promise<void> => {",
        "  const currentMigration = await getCurrentMigration(knex);",
        "  if (currentMigration !== sourceMigration) {",
        "    throw new Error(`Current migration is ${currentMigration}, but source migration is ${sourceMigration}`);",
        "  }",
        "};",
    ];
    const declaration = {
        declarationType: "generic",
        typeImports,
        lines,
    };
    const path = (0, path_1.join)(instantiatedConfig.outputPath, "migration-check");
    return {
        ...outputAcc,
        [path]: { declarations: [declaration] },
    };
};
exports.default = generateMigrationCheck;