linux-update-util: Strongly type update items.

Signed-off-by: Anders Kaseorg <anders@zulip.com>
This commit is contained in:
Anders Kaseorg
2021-07-20 17:21:58 -07:00
parent 55a6122a6c
commit 50c266295e

View File

@@ -3,6 +3,7 @@ import fs from "fs";
import path from "path";
import {JsonDB} from "node-json-db";
import {DataError} from "node-json-db/dist/lib/Errors";
import Logger from "../common/logger-util";
@@ -14,10 +15,19 @@ let db: JsonDB;
reloadDB();
export function getUpdateItem(key: string, defaultValue: unknown = null): any {
export function getUpdateItem(
key: string,
defaultValue: true | null = null,
): true | null {
reloadDB();
const value = db.getData("/")[key];
if (value === undefined) {
let value: unknown;
try {
value = db.getObject<unknown>(`/${key}`);
} catch (error: unknown) {
if (!(error instanceof DataError)) throw error;
}
if (value !== true && value !== null) {
setUpdateItem(key, defaultValue);
return defaultValue;
}
@@ -25,7 +35,7 @@ export function getUpdateItem(key: string, defaultValue: unknown = null): any {
return value;
}
export function setUpdateItem(key: string, value: unknown): void {
export function setUpdateItem(key: string, value: true | null): void {
db.push(`/${key}`, value, true);
reloadDB();
}