mirror of
https://github.com/tailscale/tailscale.git
synced 2024-11-30 05:25:35 +00:00
43 lines
1.2 KiB
Go
43 lines
1.2 KiB
Go
|
// Copyright (c) Tailscale Inc & AUTHORS
|
||
|
|
// SPDX-License-Identifier: BSD-3-Clause
|
||
|
|
|
||
|
|
package shared
|
||
|
|
|
||
|
|
import (
|
||
|
|
"path"
|
||
|
|
"strings"
|
||
|
|
)
|
||
|
|
|
||
|
|
// This file provides utility functions for working with URL paths. These are
|
||
|
|
// similar to functions in package path in the standard library, but differ in
|
||
|
|
// ways that are documented on the relevant functions.
|
||
|
|
|
||
|
|
const (
|
||
|
|
sepString = "/"
|
||
|
|
sepStringAndDot = "/."
|
||
|
|
sep = '/'
|
||
|
|
)
|
||
|
|
|
||
|
|
// CleanAndSplit cleans the provided path p and splits it into its constituent
|
||
|
|
// parts. This is different from path.Split which just splits a path into prefix
|
||
|
|
// and suffix.
|
||
|
|
func CleanAndSplit(p string) []string {
|
||
|
|
return strings.Split(strings.Trim(path.Clean(p), sepStringAndDot), sepString)
|
||
|
|
}
|
||
|
|
|
||
|
|
// Join behaves like path.Join() but also includes a leading slash.
|
||
|
|
func Join(parts ...string) string {
|
||
|
|
fullParts := make([]string, 0, len(parts))
|
||
|
|
fullParts = append(fullParts, sepString)
|
||
|
|
for _, part := range parts {
|
||
|
|
fullParts = append(fullParts, part)
|
||
|
|
}
|
||
|
|
return path.Join(fullParts...)
|
||
|
|
}
|
||
|
|
|
||
|
|
// IsRoot determines whether a given path p is the root path, defined as either
|
||
|
|
// empty or "/".
|
||
|
|
func IsRoot(p string) bool {
|
||
|
|
return p == "" || p == sepString
|
||
|
|
}
|