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   1 // +build windows
   2
   3 package archive
   4
   5 import (
   6         "archive/tar"
   7         "fmt"
   8         "os"
   9         "path/filepath"
  10         "strings"
  11
  12         "github.com/fsouza/go-dockerclient/external/github.com/docker/docker/pkg/longpath"
  13 )
  14
  15 // fixVolumePathPrefix does platform specific processing to ensure that if
  16 // the path being passed in is not in a volume path format, convert it to one.
  17 func fixVolumePathPrefix(srcPath string) string {
  18         return longpath.AddPrefix(srcPath)
  19 }
  20
  21 // getWalkRoot calculates the root path when performing a TarWithOptions.
  22 // We use a separate function as this is platform specific.
  23 func getWalkRoot(srcPath string, include string) string {
  24         return filepath.Join(srcPath, include)
  25 }
  26
  27 // CanonicalTarNameForPath returns platform-specific filepath
  28 // to canonical posix-style path for tar archival. p is relative
  29 // path.
  30 func CanonicalTarNameForPath(p string) (string, error) {
  31         // windows: convert windows style relative path with backslashes
  32         // into forward slashes. Since windows does not allow '/' or '\'
  33         // in file names, it is mostly safe to replace however we must
  34         // check just in case
  35         if strings.Contains(p, "/") {
  36                 return "", fmt.Errorf("Windows path contains forward slash: %s", p)
  37         }
  38         return strings.Replace(p, string(os.PathSeparator), "/", -1), nil
  39
  40 }
  41
  42 // chmodTarEntry is used to adjust the file permissions used in tar header based
  43 // on the platform the archival is done.
  44 func chmodTarEntry(perm os.FileMode) os.FileMode {
  45         perm &= 0755
  46         // Add the x bit: make everything +x from windows
  47         perm |= 0111
  48
  49         return perm
  50 }
  51
  52 func setHeaderForSpecialDevice(hdr *tar.Header, ta *tarAppender, name string, stat interface{}) (inode uint64, err error) {
  53         // do nothing. no notion of Rdev, Inode, Nlink in stat on Windows
  54         return
  55 }
  56
  57 // handleTarTypeBlockCharFifo is an OS-specific helper function used by
  58 // createTarFile to handle the following types of header: Block; Char; Fifo
  59 func handleTarTypeBlockCharFifo(hdr *tar.Header, path string) error {
  60         return nil
  61 }
  62
  63 func handleLChmod(hdr *tar.Header, path string, hdrInfo os.FileInfo) error {
  64         return nil
  65 }
  66
  67 func getFileUIDGID(stat interface{}) (int, int, error) {
  68         // no notion of file ownership mapping yet on Windows
  69         return 0, 0, nil
  70 }