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std/fs/ensure_symlink.ts

Deno standard library
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// Copyright 2018-2022 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 "./_util.ts";import { isWindows } from "../_util/os.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) { 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 '${destFilePathType}'`, ); } return; }
await ensureDir(path.dirname(dest));
const options: Deno.SymlinkOptions | undefined = isWindows ? { type: srcFilePathType === "dir" ? "dir" : "file", } : undefined;
await Deno.symlink(src, dest, options);}
/** * Ensures that the link exists. * If the directory structure does not exist, it is created. * * @param src the source file path * @param dest the destination link path */export function ensureSymlinkSync(src: string, dest: string): void { const srcStatInfo = Deno.lstatSync(src); const srcFilePathType = getFileInfoType(srcStatInfo);
if (existsSync(dest)) { const destStatInfo = Deno.lstatSync(dest); const destFilePathType = getFileInfoType(destStatInfo); if (destFilePathType !== "symlink") { throw new Error( `Ensure path exists, expected 'symlink', got '${destFilePathType}'`, ); } return; }
ensureDirSync(path.dirname(dest));
const options: Deno.SymlinkOptions | undefined = isWindows ? { type: srcFilePathType === "dir" ? "dir" : "file", } : undefined;
Deno.symlinkSync(src, dest, options);}