@oazmi/build-tools
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general deno build tool scripts which I practically use in all of my typescript repos
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JavaScript
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
// This module is browser compatible.
import { assertArg } from "../_common/normalize.js";
import { normalizeString } from "../_common/normalize_string.js";
import { isPosixPathSeparator } from "./_util.js";
/**
* Normalize the `path`, resolving `'..'` and `'.'` segments.
* Note that resolving these segments does not necessarily mean that all will be eliminated.
* A `'..'` at the top-level will be preserved, and an empty path is canonically `'.'`.
*
* @example Usage
* ```ts
* import { normalize } from "@std/path/posix/normalize";
* import { assertEquals } from "@std/assert/assert-equals";
*
* const path = normalize("/foo/bar//baz/asdf/quux/..");
* assertEquals(path, "/foo/bar/baz/asdf");
* ```
*
* @param path The path to normalize.
* @returns The normalized path.
*/
export function normalize(path) {
assertArg(path);
const isAbsolute = isPosixPathSeparator(path.charCodeAt(0));
const trailingSeparator = isPosixPathSeparator(path.charCodeAt(path.length - 1));
// Normalize the path
path = normalizeString(path, !isAbsolute, "/", isPosixPathSeparator);
if (path.length === 0 && !isAbsolute)
path = ".";
if (path.length > 0 && trailingSeparator)
path += "/";
if (isAbsolute)
return `/${path}`;
return path;
}