Function assertFileHasCorrectExtensions

cli.js:1670–1680

(
  /** @type {string} */ pathname,
  /** @type {string[]} */ allowedExtensions,
)

}

function assertFileHasCorrectExtensions(
  /** @type {string} */ pathname,
  /** @type {string[]} */ allowedExtensions,
) {
  if (!allowedExtensions.includes(path.parse(pathname).ext)) {
    printErrorAndExit(new Error(), [
      `Expected schema file "./${pathname}" to have a valid file extension`,
      `Valid file extensions: ${JSON.stringify(allowedExtensions, null, 2)}`,
    ])
  }
}

function assertFileHasNoBom(/** @type {DataFile} */ file) {
  const bomTypes = [