DefinitelyTyped/types/tail/index.d.ts
Stan James f417e78eef Allow null as separator in TailOptions, per docs (#37902)
To have no separator, `tail` docs specify to pass `null`, so it should be valid to pass. 

See: https://www.npmjs.com/package/tail#constructor-parameters

>separator: the line separator token (default: /[\r]{0,1}\n/ to handle linux/mac (9+)/windows). **Pass null if your file is binary there's no >line separator.**
2019-08-26 08:07:27 -07:00

41 lines
1.2 KiB
TypeScript

// Type definitions for tail 1.2
// Project: https://github.com/lucagrulla/node-tail, https://www.lucagrulla.com/node-tail
// Definitions by: Mike Linkovich <https://github.com/spacejack>
// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
// TypeScript Version: 2.1
declare namespace Tail {
interface TailOptions {
separator?: string | RegExp | null;
fromBeginning?: boolean;
fsWatchOptions?: Record<string, any>;
follow?: boolean;
logger?: any;
encoding?: string;
useWatchFile?: boolean;
}
interface Tail {
/** Callback to listen for newlines appended to file */
on(eventType: 'line', cb: (data: any) => void): void;
/** Error callback */
on(eventType: 'error', cb: (error: any) => void): void;
/** Stop watching file */
unwatch(): void;
/** Start watching file if previously stopped */
watch(): void;
}
interface TailConstructor {
/** Creates a new Tail object that starts watching the specified file immediately. */
new(filename: string, options?: TailOptions): Tail;
}
interface Static {
Tail: TailConstructor;
}
}
declare const Tail: Tail.Static;
export = Tail;