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// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
import { stat, statSync } from "./ops/fs/stat.ts";
import { open, openSync } from "./files.ts";
import { chmod, chmodSync } from "./ops/fs/chmod.ts";
import { writeAll, writeAllSync } from "./buffer.ts";
export interface WriteFileOptions {
append?: boolean;
create?: boolean;
mode?: number;
}
export function writeFileSync(
path: string,
data: Uint8Array,
options: WriteFileOptions = {}
): void {
if (options.create !== undefined) {
const create = !!options.create;
if (!create) {
// verify that file exists
statSync(path);
}
}
const openMode = !!options.append ? "a" : "w";
const file = openSync(path, openMode);
if (options.mode !== undefined && options.mode !== null) {
chmodSync(path, options.mode);
}
writeAllSync(file, data);
file.close();
}
export async function writeFile(
path: string,
data: Uint8Array,
options: WriteFileOptions = {}
): Promise<void> {
if (options.create !== undefined) {
const create = !!options.create;
if (!create) {
// verify that file exists
await stat(path);
}
}
const openMode = !!options.append ? "a" : "w";
const file = await open(path, openMode);
if (options.mode !== undefined && options.mode !== null) {
await chmod(path, options.mode);
}
await writeAll(file, data);
file.close();
}
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