github.com/koderover/helm@v2.17.0+incompatible/internal/third_party/dep/fs/rename_windows.go (about)

     1  // +build windows
     2  
     3  /*
     4  Copyright (c) for portions of rename_windows.go are held by The Go Authors, 2016 and are provided under
     5  the BSD license.
     6  
     7  Redistribution and use in source and binary forms, with or without
     8  modification, are permitted provided that the following conditions are
     9  met:
    10  
    11     * Redistributions of source code must retain the above copyright
    12  notice, this list of conditions and the following disclaimer.
    13     * Redistributions in binary form must reproduce the above
    14  copyright notice, this list of conditions and the following disclaimer
    15  in the documentation and/or other materials provided with the
    16  distribution.
    17     * Neither the name of Google Inc. nor the names of its
    18  contributors may be used to endorse or promote products derived from
    19  this software without specific prior written permission.
    20  
    21  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    22  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    23  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
    24  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
    25  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    26  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
    27  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
    28  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
    29  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    30  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
    31  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    32  */
    33  
    34  package fs
    35  
    36  import (
    37  	"os"
    38  	"syscall"
    39  
    40  	"github.com/pkg/errors"
    41  )
    42  
    43  // renameFallback attempts to determine the appropriate fallback to failed rename
    44  // operation depending on the resulting error.
    45  func renameFallback(err error, src, dst string) error {
    46  	// Rename may fail if src and dst are on different devices; fall back to
    47  	// copy if we detect that case. syscall.EXDEV is the common name for the
    48  	// cross device link error which has varying output text across different
    49  	// operating systems.
    50  	terr, ok := err.(*os.LinkError)
    51  	if !ok {
    52  		return err
    53  	}
    54  
    55  	if terr.Err != syscall.EXDEV {
    56  		// In windows it can drop down to an operating system call that
    57  		// returns an operating system error with a different number and
    58  		// message. Checking for that as a fall back.
    59  		noerr, ok := terr.Err.(syscall.Errno)
    60  
    61  		// 0x11 (ERROR_NOT_SAME_DEVICE) is the windows error.
    62  		// See https://msdn.microsoft.com/en-us/library/cc231199.aspx
    63  		if ok && noerr != 0x11 {
    64  			return errors.Wrapf(terr, "link error: cannot rename %s to %s", src, dst)
    65  		}
    66  	}
    67  
    68  	return renameByCopy(src, dst)
    69  }