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settings.ts

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settings.ts

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import { logger } from "@coder/logger"
import type { ParsedQs } from "qs"
import { promises as fs } from "fs"
export type Settings = { [key: string]: Settings | string | boolean | number }
/**
* Provides read and write access to settings.
*/
export class SettingsProvider<T> {
public constructor(private readonly settingsPath: string) {}
/**
* Read settings from the file. On a failure return last known settings and
* log a warning.
*/
public async read(): Promise<T> {
try {
const raw = (await fs.readFile(this.settingsPath, "utf8")).trim()
return raw ? JSON.parse(raw) : ({} as T)
} catch (error: any) {
if (error.code !== "ENOENT") {
logger.warn(error.message)
}
}
return {} as T
}
/**
* Write settings combined with current settings. On failure log a warning.
* Settings will be merged shallowly.
*/
public async write(settings: Partial<T>): Promise<void> {
try {
const oldSettings = await this.read()
const nextSettings = { ...oldSettings, ...settings }
await fs.writeFile(this.settingsPath, JSON.stringify(nextSettings, null, 2))
} catch (error: any) {
logger.warn(error.message)
}
}
}
export interface UpdateSettings {
update: {
checked: number
version: string
}
}
/**
* Global code-server settings.
*/
export interface CoderSettings extends UpdateSettings {
query?: ParsedQs
}
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