Importing TOML

If you already have a flyway.toml file, chant can convert it into typed TypeScript declarations.

Quick import

chant import flyway.toml

This reads your TOML config and generates a src/infra.ts file with typed constructors.

Before and after

Before — flyway.toml:

id = "payments"
name = "payments"
databaseType = "postgresql"

[flyway]
locations = ["filesystem:sql/migrations"]
defaultSchema = "public"
cleanDisabled = true

[environments.dev]
url = "jdbc:postgresql://localhost:5432/payments_dev"
user = "dev_user"
schemas = ["public"]

[environments.prod]
url = "jdbc:postgresql://prod:5432/payments"
user = "${vault.db-user}"
password = "${vault.db-password}"
schemas = ["public"]
cleanDisabled = true
validateOnMigrate = true

[environments.prod.resolvers.vault]
url = "https://vault.internal:8200"
token = "${env.VAULT_TOKEN}"
engineName = "secret"
engineVersion = "v2"

After — src/infra.ts:

import {
  FlywayProject, FlywayConfig, Environment,
  VaultResolver, resolve,
} from "@intentius/chant-lexicon-flyway";

export const project = new FlywayProject({
  id: "payments",
  name: "payments",
  databaseType: "postgresql",
});

export const config = new FlywayConfig({
  locations: ["filesystem:sql/migrations"],
  defaultSchema: "public",
  cleanDisabled: true,
});

export const dev = new Environment({
  url: "jdbc:postgresql://localhost:5432/payments_dev",
  user: "dev_user",
  schemas: ["public"],
  displayName: "dev",
});

export const vaultResolver = new VaultResolver({
  url: "https://vault.internal:8200",
  token: "${env.VAULT_TOKEN}",
  engineName: "secret",
  engineVersion: "v2",
});

export const prod = new Environment({
  url: "jdbc:postgresql://prod:5432/payments",
  user: resolve("vault", "db-user"),
  password: resolve("vault", "db-password"),
  schemas: ["public"],
  cleanDisabled: true,
  validateOnMigrate: true,
  displayName: "prod",
});

What changes

TOML	TypeScript
Inline strings	Typed constructor properties
${resolver.key} patterns	resolve("resolver", "key") calls
${flyway:name} placeholders	FLYWAY.name constants
Nested resolver configs	Separate VaultResolver / GcpResolver exports

Round-trip fidelity

Running chant build on the generated TypeScript produces TOML that is semantically identical to the original input. The only differences are formatting (key ordering, whitespace).