This change adopts the upstream fix in this regard at https://go-review.googlesource.com/#/c/41834/ for Minio's purposes. Go's current os.Stat() lacks support for lot of strange windows files such as - share symlinks on SMB2 - symlinks on docker nanoserver - de-duplicated files on NTFS de-duplicated volume. This PR attempts to incorporate the change mentioned here https://blogs.msdn.microsoft.com/oldnewthing/20100212-00/?p=14963/ The article suggests to use Windows I/O manager to dereference the symbolic link. Fixes #4122
50 lines
1.6 KiB
Go
50 lines
1.6 KiB
Go
// +build !windows
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/*
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* Minio Cloud Storage, (C) 2016, 2017 Minio, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package cmd
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import "os"
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// osStat returns a FileInfo structure describing the named file.
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// If there is an error, it will be of type *PathError.
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func osStat(name string) (os.FileInfo, error) {
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return os.Stat(name)
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}
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// isValidVolname verifies a volname name in accordance with object
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// layer requirements.
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func isValidVolname(volname string) bool {
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return !(len(volname) < 3 || len(volname) > 63)
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}
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// mkdirAll creates a directory named path,
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// along with any necessary parents, and returns nil,
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// or else returns an error. The permission bits perm are used
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// for all directories that mkdirAll creates. If path is already
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// a directory, mkdirAll does nothing and returns nil.
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func mkdirAll(path string, perm os.FileMode) error {
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return os.MkdirAll(path, perm)
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}
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// removeAll removes path and any children it contains.
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// It removes everything it can but returns the first error
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// it encounters. If the path does not exist, RemoveAll
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// returns nil (no error).
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func removeAll(path string) error {
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return os.RemoveAll(path)
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}
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