Function file

packages/effect/src/unstable/cli/Prompt.ts:878–915

(options: FileOptions = {})

 * @since 4.0.0
 */
export const file = (options: FileOptions = {}): Prompt<string> => {
  const opts: FileOptionsReq = {
    type: options.type ?? "file",
    message: options.message ?? `Choose a file`,
    startingPath: Option.fromUndefinedOr(options.startingPath),
    default: Option.fromUndefinedOr(options.default),
    maxPerPage: options.maxPerPage ?? 10,
    filter: options.filter ?? (() => Effect.succeed(true))
  }
  const initialState: Effect.Effect<
    FileState,
    never,
    Environment
  > = Effect.gen(function*() {
    const currentPath = yield* resolveCurrentPath(Option.none(), opts)
    const path = yield* Path.Path
    const defaultPath = Option.map(opts.default, (defaultValue) => path.resolve(currentPath, defaultValue))
    const initialPath = Option.match(defaultPath, {
      onNone: () => currentPath,
      onSome: (defaultPath) => path.dirname(defaultPath)
    })
    const files = yield* getFileList(initialPath, opts)
    const cursor = Option.match(defaultPath, {
      onNone: () => 0,
      onSome: (defaultPath) => {
        const index = files.indexOf(path.basename(defaultPath))
        return index === -1 ? 0 : index
      }
    })
    const confirm = Confirm.Hide()
    return { cursor, files, allFiles: files, query: "", path: Option.map(defaultPath, path.dirname), confirm }
  })
  return custom(initialState, {
    render: handleFileRender(opts),
    process: handleFileProcess(opts),
    clear: handleFileClear(opts)
  })
}

/**
 * Composes prompts by using the output of this prompt to create the next prompt.