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linux-update-util: Strongly type update items.

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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
1 changed files with 14 additions and 4 deletions
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18
app/main/linux-update-util.ts
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@@ -3,6 +3,7 @@ import fs from "fs";
import path from "path"; import path from "path";
import {JsonDB} from "node-json-db"; import {JsonDB} from "node-json-db";
import {DataError} from "node-json-db/dist/lib/Errors";
import Logger from "../common/logger-util"; import Logger from "../common/logger-util";
@@ -14,10 +15,19 @@ let db: JsonDB;
reloadDB(); reloadDB();
export function getUpdateItem(key: string, defaultValue: unknown = null): any { export function getUpdateItem(
key: string,
defaultValue: true | null = null,
): true | null {
reloadDB(); reloadDB();
const value = db.getData("/")[key]; let value: unknown;
if (value === undefined) { try {
value = db.getObject<unknown>(`/${key}`);
} catch (error: unknown) {
if (!(error instanceof DataError)) throw error;
}
if (value !== true && value !== null) {
setUpdateItem(key, defaultValue); setUpdateItem(key, defaultValue);
return defaultValue; return defaultValue;
} }
@@ -25,7 +35,7 @@ export function getUpdateItem(key: string, defaultValue: unknown = null): any {
return value; return value;
} }
export function setUpdateItem(key: string, value: unknown): void { export function setUpdateItem(key: string, value: true | null): void {
db.push(`/${key}`, value, true); db.push(`/${key}`, value, true);
reloadDB(); reloadDB();
} }