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