std/fs/move.ts
William Perron 69f3d67cb2
chore: remove Promise<void> return type annotation (#819)
There's a couple of instances where `Promise<void>` is still there,
those are the exceptions, for example functions that explicitely return
a `Promise` object or functions that return the promise from another
function call without any `await` statement.

used this one-liner to automatically remove everything:

```bash
grep -rli 'promise<void>' | xargs sed -i 's/: Promise<void>//g
```
2021-04-05 07:49:05 -04:00

64 lines
1.4 KiB
TypeScript

// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
import { exists, existsSync } from "./exists.ts";
import { isSubdir } from "./_util.ts";
interface MoveOptions {
overwrite?: boolean;
}
/** Moves a file or directory */
export async function move(
src: string,
dest: string,
{ overwrite = false }: MoveOptions = {},
) {
const srcStat = await Deno.stat(src);
if (srcStat.isDirectory && isSubdir(src, dest)) {
throw new Error(
`Cannot move '${src}' to a subdirectory of itself, '${dest}'.`,
);
}
if (overwrite) {
if (await exists(dest)) {
await Deno.remove(dest, { recursive: true });
}
} else {
if (await exists(dest)) {
throw new Error("dest already exists.");
}
}
await Deno.rename(src, dest);
return;
}
/** Moves a file or directory synchronously */
export function moveSync(
src: string,
dest: string,
{ overwrite = false }: MoveOptions = {},
): void {
const srcStat = Deno.statSync(src);
if (srcStat.isDirectory && isSubdir(src, dest)) {
throw new Error(
`Cannot move '${src}' to a subdirectory of itself, '${dest}'.`,
);
}
if (overwrite) {
if (existsSync(dest)) {
Deno.removeSync(dest, { recursive: true });
}
} else {
if (existsSync(dest)) {
throw new Error("dest already exists.");
}
}
Deno.renameSync(src, dest);
}