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denoland-deno/std/fs/write_json.ts

57 lines
1.5 KiB
TypeScript

// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
// eslint-disable-next-line @typescript-eslint/no-explicit-any
type Replacer = (key: string, value: any) => any;
export interface WriteJsonOptions extends Deno.WriteFileOptions {
replacer?: Array<number | string> | Replacer;
spaces?: number | string;
}
function serialize(
filePath: string,
// eslint-disable-next-line @typescript-eslint/no-explicit-any
object: any,
options: WriteJsonOptions,
): string {
try {
const jsonString = JSON.stringify(
object,
options.replacer as string[],
options.spaces,
);
return `${jsonString}\n`;
} catch (err) {
err.message = `${filePath}: ${err.message}`;
throw err;
}
}
/* Writes an object to a JSON file. */
export async function writeJson(
filePath: string,
// eslint-disable-next-line @typescript-eslint/no-explicit-any
object: any,
options: WriteJsonOptions = {},
): Promise<void> {
const jsonString = serialize(filePath, object, options);
await Deno.writeTextFile(filePath, jsonString, {
append: options.append,
create: options.create,
mode: options.mode,
});
}
/* Writes an object to a JSON file. */
export function writeJsonSync(
filePath: string,
// eslint-disable-next-line @typescript-eslint/no-explicit-any
object: any,
options: WriteJsonOptions = {},
): void {
const jsonString = serialize(filePath, object, options);
Deno.writeTextFileSync(filePath, jsonString, {
append: options.append,
create: options.create,
mode: options.mode,
});
}