mirror of
https://github.com/denoland/deno.git
synced 2024-11-26 16:09:27 -05:00
d43b43ca78
Instead of using core/snapshot_creator.rs, instead two crates are introduced which allow building the snapshot during build.rs. Rollup is removed and replaced with our own bundler. This removes the Node build dependency. Modules in //js now use Deno-style imports with file extensions, rather than Node style extensionless imports. This improves incremental build time when changes are made to //js files by about 40 seconds.
76 lines
2 KiB
TypeScript
76 lines
2 KiB
TypeScript
// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
|
|
import { stat, statSync } from "./stat.ts";
|
|
import { open, openSync } from "./files.ts";
|
|
import { chmod, chmodSync } from "./chmod.ts";
|
|
import { writeAll, writeAllSync } from "./buffer.ts";
|
|
|
|
/** Options for writing to a file.
|
|
* `perm` would change the file's permission if set.
|
|
* `create` decides if the file should be created if not exists (default: true)
|
|
* `append` decides if the file should be appended (default: false)
|
|
*/
|
|
export interface WriteFileOptions {
|
|
perm?: number;
|
|
create?: boolean;
|
|
append?: boolean;
|
|
}
|
|
|
|
/** Write a new file, with given filename and data synchronously.
|
|
*
|
|
* const encoder = new TextEncoder();
|
|
* const data = encoder.encode("Hello world\n");
|
|
* Deno.writeFileSync("hello.txt", data);
|
|
*/
|
|
export function writeFileSync(
|
|
filename: string,
|
|
data: Uint8Array,
|
|
options: WriteFileOptions = {}
|
|
): void {
|
|
if (options.create !== undefined) {
|
|
const create = !!options.create;
|
|
if (!create) {
|
|
// verify that file exists
|
|
statSync(filename);
|
|
}
|
|
}
|
|
|
|
const openMode = !!options.append ? "a" : "w";
|
|
const file = openSync(filename, openMode);
|
|
|
|
if (options.perm !== undefined && options.perm !== null) {
|
|
chmodSync(filename, options.perm);
|
|
}
|
|
|
|
writeAllSync(file, data);
|
|
file.close();
|
|
}
|
|
|
|
/** Write a new file, with given filename and data.
|
|
*
|
|
* const encoder = new TextEncoder();
|
|
* const data = encoder.encode("Hello world\n");
|
|
* await Deno.writeFile("hello.txt", data);
|
|
*/
|
|
export async function writeFile(
|
|
filename: string,
|
|
data: Uint8Array,
|
|
options: WriteFileOptions = {}
|
|
): Promise<void> {
|
|
if (options.create !== undefined) {
|
|
const create = !!options.create;
|
|
if (!create) {
|
|
// verify that file exists
|
|
await stat(filename);
|
|
}
|
|
}
|
|
|
|
const openMode = !!options.append ? "a" : "w";
|
|
const file = await open(filename, openMode);
|
|
|
|
if (options.perm !== undefined && options.perm !== null) {
|
|
await chmod(filename, options.perm);
|
|
}
|
|
|
|
await writeAll(file, data);
|
|
file.close();
|
|
}
|