tailscale/tailfs/tailfsimpl/shared/pathutil.go
Percy Wegmann 50fb8b9123 tailfs: replace webdavfs with reverse proxies
Instead of modeling remote WebDAV servers as actual
webdav.FS instances, we now just proxy traffic to them.
This not only simplifies the code, but it also allows
WebDAV locking to work correctly by making sure locks are
handled by the servers that need to (i.e. the ones actually
serving the files).

Updates tailscale/corp#16827

Signed-off-by: Percy Wegmann <percy@tailscale.com>
2024-02-26 09:30:22 -06:00

51 lines
1.3 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
}
// Base is like path.Base except that it returns "" for the root folder
func Base(p string) string {
if IsRoot(p) {
return ""
}
return path.Base(p)
}