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denoland-deno/std/fs/empty_dir.ts
2020-03-06 08:34:02 -05:00

59 lines
1.7 KiB
TypeScript

// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
import { join } from "../path/mod.ts";
const { readdir, readdirSync, mkdir, mkdirSync, remove, removeSync } = Deno;
/**
* Ensures that a directory is empty.
* Deletes directory contents if the directory is not empty.
* If the directory does not exist, it is created.
* The directory itself is not deleted.
* Requires the `--allow-read` and `--alow-write` flag.
*/
export async function emptyDir(dir: string): Promise<void> {
try {
const items = await readdir(dir);
while (items.length) {
const item = items.shift();
if (item && item.name) {
const filepath = join(dir, item.name);
await remove(filepath, { recursive: true });
}
}
} catch (err) {
if (!(err instanceof Deno.errors.NotFound)) {
throw err;
}
// if not exist. then create it
await mkdir(dir, { recursive: true });
}
}
/**
* Ensures that a directory is empty.
* Deletes directory contents if the directory is not empty.
* If the directory does not exist, it is created.
* The directory itself is not deleted.
* Requires the `--allow-read` and `--alow-write` flag.
*/
export function emptyDirSync(dir: string): void {
try {
const items = readdirSync(dir);
// if directory already exist. then remove it's child item.
while (items.length) {
const item = items.shift();
if (item && item.name) {
const filepath = join(dir, item.name);
removeSync(filepath, { recursive: true });
}
}
} catch (err) {
if (!(err instanceof Deno.errors.NotFound)) {
throw err;
}
// if not exist. then create it
mkdirSync(dir, { recursive: true });
return;
}
}