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// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
import * as path from "./path/mod.ts";
import { exists, existsSync } from "./exists.ts";
interface MoveOptions {
overwrite?: boolean;
}
function isSrcSubdir(src: string, dest: string): boolean {
const srcArray = src.split(path.sep);
const destArray = dest.split(path.sep);
return srcArray.reduce((acc, current, i) => {
return acc && destArray[i] === current;
}, true);
}
/** Moves a file or directory */
export async function move(
src: string,
dest: string,
options?: MoveOptions
): Promise<void> {
src = path.resolve(src);
dest = path.resolve(dest);
const srcStat = await Deno.stat(src);
if (srcStat.isDirectory() && isSrcSubdir(src, dest)) {
throw new Error(
`Cannot move '${src}' to a subdirectory of itself, '${dest}'.`
);
}
if (options && options.overwrite) {
await Deno.remove(dest, { recursive: true });
await Deno.rename(src, dest);
} else {
if (await exists(dest)) {
throw new Error("dest already exists.");
}
await Deno.rename(src, dest);
}
return;
}
/** Moves a file or directory */
export function moveSync(
src: string,
dest: string,
options?: MoveOptions
): void {
src = path.resolve(src);
dest = path.resolve(dest);
const srcStat = Deno.statSync(src);
if (srcStat.isDirectory() && isSrcSubdir(src, dest)) {
throw new Error(
`Cannot move '${src}' to a subdirectory of itself, '${dest}'.`
);
}
if (options && options.overwrite) {
Deno.removeSync(dest, { recursive: true });
Deno.renameSync(src, dest);
} else {
if (existsSync(dest)) {
throw new Error("dest already exists.");
}
Deno.renameSync(src, dest);
}
}
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