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std/fs/ensure_symlink.ts

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