minio/cmd/posix-utils_nix.go
Harshavardhana f0b5c0ec7c windows: Support all REPARSE_POINT attrib files properly. (#4203)
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
2017-05-02 02:35:27 -07:00

51 lines
1.6 KiB
Go

// +build !windows
/*
* Minio Cloud Storage, (C) 2016, 2017 Minio, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package cmd
import "os"
// osStat returns a FileInfo structure describing the named file.
// If there is an error, it will be of type *PathError.
func osStat(name string) (os.FileInfo, error) {
return os.Stat(name)
}
// isValidVolname verifies a volname name in accordance with object
// layer requirements.
func isValidVolname(volname string) bool {
return !(len(volname) < 3 || len(volname) > 63)
}
// mkdirAll creates a directory named path,
// along with any necessary parents, and returns nil,
// or else returns an error. The permission bits perm are used
// for all directories that mkdirAll creates. If path is already
// a directory, mkdirAll does nothing and returns nil.
func mkdirAll(path string, perm os.FileMode) error {
return os.MkdirAll(path, perm)
}
// removeAll removes path and any children it contains.
// It removes everything it can but returns the first error
// it encounters. If the path does not exist, RemoveAll
// returns nil (no error).
func removeAll(path string) error {
return os.RemoveAll(path)
}