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109 lines
2.9 KiB
TypeScript
109 lines
2.9 KiB
TypeScript
// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
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import { notImplemented } from "../_utils.ts";
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import {
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WriteFileOptions,
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CallbackWithError,
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isFileOptions,
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getEncoding,
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getOpenOptions,
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} from "./_fs_common.ts";
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export function writeFile(
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pathOrRid: string | number,
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data: string | Uint8Array,
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optOrCallback: string | CallbackWithError | WriteFileOptions | undefined,
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callback?: CallbackWithError
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): void {
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const callbackFn: CallbackWithError | undefined =
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optOrCallback instanceof Function ? optOrCallback : callback;
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const options: string | WriteFileOptions | undefined =
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optOrCallback instanceof Function ? undefined : optOrCallback;
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if (!callbackFn) {
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throw new TypeError("Callback must be a function.");
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}
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const flag: string | undefined = isFileOptions(options)
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? options.flag
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: undefined;
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const mode: number | undefined = isFileOptions(options)
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? options.mode
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: undefined;
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const encoding = getEncoding(options) || "utf8";
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const openOptions = getOpenOptions(flag || "w");
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if (typeof data === "string" && encoding === "utf8")
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data = new TextEncoder().encode(data) as Uint8Array;
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const isRid = typeof pathOrRid === "number";
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let file;
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let error: Error | null = null;
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(async (): Promise<void> => {
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try {
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file = isRid
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? new Deno.File(pathOrRid as number)
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: await Deno.open(pathOrRid as string, openOptions);
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if (!isRid && mode) {
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if (Deno.build.os === "windows") notImplemented(`"mode" on Windows`);
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await Deno.chmod(pathOrRid as string, mode);
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}
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await Deno.writeAll(file, data as Uint8Array);
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} catch (e) {
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error = e;
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} finally {
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// Make sure to close resource
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if (!isRid && file) file.close();
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callbackFn(error);
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}
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})();
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}
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export function writeFileSync(
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pathOrRid: string | number,
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data: string | Uint8Array,
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options?: string | WriteFileOptions
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): void {
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const flag: string | undefined = isFileOptions(options)
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? options.flag
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: undefined;
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const mode: number | undefined = isFileOptions(options)
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? options.mode
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: undefined;
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const encoding = getEncoding(options) || "utf8";
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const openOptions = getOpenOptions(flag || "w");
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if (typeof data === "string" && encoding === "utf8")
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data = new TextEncoder().encode(data) as Uint8Array;
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const isRid = typeof pathOrRid === "number";
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let file;
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let error: Error | null = null;
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try {
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file = isRid
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? new Deno.File(pathOrRid as number)
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: Deno.openSync(pathOrRid as string, openOptions);
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if (!isRid && mode) {
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if (Deno.build.os === "windows") notImplemented(`"mode" on Windows`);
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Deno.chmodSync(pathOrRid as string, mode);
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}
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Deno.writeAllSync(file, data as Uint8Array);
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} catch (e) {
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error = e;
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} finally {
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// Make sure to close resource
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if (!isRid && file) file.close();
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if (error) throw error;
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}
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}
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