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ensure_symlink.ts
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ensure_symlink.ts
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// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
import * as path from "../path/mod.ts";
import { ensureDir, ensureDirSync } from "./ensure_dir.ts";
import { exists, existsSync } from "./exists.ts";
import { getFileInfoType } from "./utils.ts";
/**
* Ensures that the link exists.
* If the directory structure does not exist, it is created.
*
* @param src the source file path
* @param dest the destination link path
*/
export async function ensureSymlink(src: string, dest: string): Promise<void> {
const srcStatInfo = await Deno.lstat(src);
const srcFilePathType = getFileInfoType(srcStatInfo);
if (await exists(dest)) {
const destStatInfo = await Deno.lstat(dest);
const destFilePathType = getFileInfoType(destStatInfo);
if (destFilePathType !== "symlink") {
throw new Error(
`Ensure path exists, expected 'symlink', got '${destFilePathType}'`
);
}
return;
}
await ensureDir(path.dirname(dest));
await Deno.symlink(src, dest, srcFilePathType);
}
/**
* Ensures that the link exists.
* If the directory structure does not exist, it is created.
*
* @param src the source file path
* @param dest the destination link path
*/
export function ensureSymlinkSync(src: string, dest: string): void {
const srcStatInfo = Deno.lstatSync(src);
const srcFilePathType = getFileInfoType(srcStatInfo);
if (existsSync(dest)) {
const destStatInfo = Deno.lstatSync(dest);
const destFilePathType = getFileInfoType(destStatInfo);
if (destFilePathType !== "symlink") {
throw new Error(
`Ensure path exists, expected 'symlink', got '${destFilePathType}'`
);
}
return;
}
ensureDirSync(path.dirname(dest));
Deno.symlinkSync(src, dest, srcFilePathType);
}