pkg/archive/archive_windows.go
Stefan J. Wernli 1c1d0c5f6f Fixing Tar functions to support Windows long paths.
Signed-off-by: Stefan J. Wernli <swernli@microsoft.com>
2015-08-11 16:07:36 -07:00

66 lines
2 KiB
Go

// +build windows
package archive
import (
"archive/tar"
"fmt"
"os"
"path/filepath"
"strings"
)
// fixVolumePathPrefix does platform specific processing to ensure that if
// the path being passed in is not in a volume path format, convert it to one.
func fixVolumePathPrefix(srcPath string) string {
if !strings.HasPrefix(srcPath, `\\?\`) {
srcPath = `\\?\` + srcPath
}
return srcPath
}
// getWalkRoot calculates the root path when performing a TarWithOptions.
// We use a seperate function as this is platform specific.
func getWalkRoot(srcPath string, include string) string {
return filepath.Join(srcPath, include)
}
// canonicalTarNameForPath returns platform-specific filepath
// to canonical posix-style path for tar archival. p is relative
// path.
func CanonicalTarNameForPath(p string) (string, error) {
// windows: convert windows style relative path with backslashes
// into forward slashes. Since windows does not allow '/' or '\'
// in file names, it is mostly safe to replace however we must
// check just in case
if strings.Contains(p, "/") {
return "", fmt.Errorf("Windows path contains forward slash: %s", p)
}
return strings.Replace(p, string(os.PathSeparator), "/", -1), nil
}
// chmodTarEntry is used to adjust the file permissions used in tar header based
// on the platform the archival is done.
func chmodTarEntry(perm os.FileMode) os.FileMode {
perm &= 0755
// Add the x bit: make everything +x from windows
perm |= 0111
return perm
}
func setHeaderForSpecialDevice(hdr *tar.Header, ta *tarAppender, name string, stat interface{}) (nlink uint32, inode uint64, err error) {
// do nothing. no notion of Rdev, Inode, Nlink in stat on Windows
return
}
// handleTarTypeBlockCharFifo is an OS-specific helper function used by
// createTarFile to handle the following types of header: Block; Char; Fifo
func handleTarTypeBlockCharFifo(hdr *tar.Header, path string) error {
return nil
}
func handleLChmod(hdr *tar.Header, path string, hdrInfo os.FileInfo) error {
return nil
}