81 lines
1.6 KiB
Go
81 lines
1.6 KiB
Go
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// SPDX-License-Identifier: BSD-3-Clause
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// Code in this file was copied from `go/src/os/path.go`
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// and `go/src/os/path_unix.go`.
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// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the `go.LICENSE` file.
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//go:build unix
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package ufs
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import (
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"os"
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)
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// basename removes trailing slashes and the leading directory name from path name.
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func basename(name string) string {
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i := len(name) - 1
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// Remove trailing slashes
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for ; i > 0 && name[i] == '/'; i-- {
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name = name[:i]
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}
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// Remove leading directory name
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for i--; i >= 0; i-- {
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if name[i] == '/' {
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name = name[i+1:]
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break
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}
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}
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return name
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}
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// endsWithDot reports whether the final component of path is ".".
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func endsWithDot(path string) bool {
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if path == "." {
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return true
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}
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if len(path) >= 2 && path[len(path)-1] == '.' && os.IsPathSeparator(path[len(path)-2]) {
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return true
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}
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return false
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}
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// splitPath returns the base name and parent directory.
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func splitPath(path string) (string, string) {
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// if no better parent is found, the path is relative from "here"
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dirname := "."
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// Remove all but one leading slash.
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for len(path) > 1 && path[0] == '/' && path[1] == '/' {
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path = path[1:]
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}
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i := len(path) - 1
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// Remove trailing slashes.
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for ; i > 0 && path[i] == '/'; i-- {
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path = path[:i]
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}
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// if no slashes in path, base is path
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basename := path
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// Remove leading directory path
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for i--; i >= 0; i-- {
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if path[i] == '/' {
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if i == 0 {
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dirname = path[:1]
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} else {
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dirname = path[:i]
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}
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basename = path[i+1:]
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break
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}
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}
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return dirname, basename
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}
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