50 lines
1.1 KiB
Go
50 lines
1.1 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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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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)
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// IsDir returns true if base and every path component of name up to and
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// including filepath.Join(base, name) is a directory (and not a symlink or
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// similar). Base and name must both be clean and name must be relative to
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// base.
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func IsDir(base, name string) bool {
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path := base
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info, err := Lstat(path)
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if err != nil {
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return false
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}
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if !info.IsDir() {
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return false
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}
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if name == "." {
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// The result of calling IsDir("some/where", filepath.Dir("foo"))
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return true
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}
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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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info, err := Lstat(path)
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if err != nil {
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return false
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}
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if info.Mode()&os.ModeSymlink != 0 {
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return false
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}
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if !info.IsDir() {
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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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