49 lines
1.3 KiB
Go
49 lines
1.3 KiB
Go
// Copyright (C) 2016 The Syncthing Authors.
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//
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// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this file,
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// You can obtain one at http://mozilla.org/MPL/2.0/.
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// +build windows
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package osutil
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import (
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"os"
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"path/filepath"
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"strings"
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"syscall"
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)
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// CheckNameConflict returns true if every path component of name up to and
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// including filepath.Join(base, name) doesn't conflict with any existing
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// files or folders with different names. Base and name must both be clean and
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// name must be relative to base.
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func CheckNameConflict(base, name string) bool {
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// Conflicts can be caused by different casing (e.g. foo and FOO) or
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// by the use of short names (e.g. foo.barbaz and FOO~1.BAR).
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path := base
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parts := strings.Split(name, string(os.PathSeparator))
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for _, part := range parts {
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path = filepath.Join(path, part)
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pathp, err := syscall.UTF16PtrFromString(path)
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if err != nil {
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return false
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}
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var data syscall.Win32finddata
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handle, err := syscall.FindFirstFile(pathp, &data)
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if err == syscall.ERROR_FILE_NOT_FOUND {
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return true
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}
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if err != nil {
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return false
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}
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syscall.FindClose(handle)
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fileName := syscall.UTF16ToString(data.FileName[:])
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if part != fileName {
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return false
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}
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}
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return true
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}
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