mirror of
https://github.com/denoland/deno.git
synced 2024-12-22 23:34:47 -05:00
44 lines
1.4 KiB
TypeScript
44 lines
1.4 KiB
TypeScript
// Copyright 2018 the Deno authors. All rights reserved. MIT license.
|
|
import * as msg from "gen/msg_generated";
|
|
import { flatbuffers } from "flatbuffers";
|
|
import { assert } from "./util";
|
|
import * as dispatch from "./dispatch";
|
|
|
|
/**
|
|
* Returns the destination of the named symbolic link synchronously.
|
|
*
|
|
* import { readlinkSync } from "deno";
|
|
* const targetPath = readlinkSync("symlink/path");
|
|
*/
|
|
export function readlinkSync(name: string): string {
|
|
return res(dispatch.sendSync(...req(name)));
|
|
}
|
|
|
|
/**
|
|
* Returns the destination of the named symbolic link.
|
|
*
|
|
* import { readlink } from "deno";
|
|
* const targetPath = await readlink("symlink/path");
|
|
*/
|
|
export async function readlink(name: string): Promise<string> {
|
|
return res(await dispatch.sendAsync(...req(name)));
|
|
}
|
|
|
|
function req(name: string): [flatbuffers.Builder, msg.Any, flatbuffers.Offset] {
|
|
const builder = new flatbuffers.Builder();
|
|
const name_ = builder.createString(name);
|
|
msg.Readlink.startReadlink(builder);
|
|
msg.Readlink.addName(builder, name_);
|
|
const inner = msg.Readlink.endReadlink(builder);
|
|
return [builder, msg.Any.Readlink, inner];
|
|
}
|
|
|
|
function res(baseRes: null | msg.Base): string {
|
|
assert(baseRes !== null);
|
|
assert(msg.Any.ReadlinkRes === baseRes!.innerType());
|
|
const res = new msg.ReadlinkRes();
|
|
assert(baseRes!.inner(res) !== null);
|
|
const path = res.path();
|
|
assert(path !== null);
|
|
return path!;
|
|
}
|