mirror of
https://github.com/containers/podman.git
synced 2025-12-03 19:59:39 +08:00
8f418f1568
Signed-off-by: TomSweeneyRedHat <tsweeney@redhat.com> Vendors in fsouza/docker-client, docker/docker and a few more related. Of particular note, changes to the TweakCapabilities() function from docker/docker along with the parse.IDMappingOptions() function from Buildah. Please pay particular attention to the related changes in the call from libpod to those functions during the review. Passes baseline tests.
72 lines
2.3 KiB
Go
72 lines
2.3 KiB
Go
// Copyright 2014 Docker authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the DOCKER-LICENSE file.
|
|
|
|
package archive
|
|
|
|
import (
|
|
"archive/tar"
|
|
"fmt"
|
|
"os"
|
|
"path/filepath"
|
|
"strings"
|
|
|
|
"github.com/docker/docker/pkg/idtools"
|
|
"github.com/docker/docker/pkg/longpath"
|
|
)
|
|
|
|
// 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
|
|
|
|
}
|
|
|
|
// 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 {
|
|
return longpath.AddPrefix(srcPath)
|
|
}
|
|
|
|
// getWalkRoot calculates the root path when performing a TarWithOptions.
|
|
// We use a separate function as this is platform specific.
|
|
func getWalkRoot(srcPath string, include string) string {
|
|
return filepath.Join(srcPath, include)
|
|
}
|
|
|
|
func getInodeFromStat(stat interface{}) (inode uint64, err error) {
|
|
// do nothing. no notion of Inode in stat on Windows
|
|
return
|
|
}
|
|
|
|
func getFileIdentity(stat interface{}) (idtools.Identity, error) {
|
|
// no notion of file ownership mapping yet on Windows
|
|
return idtools.Identity{}, 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 // this 0-ed out tar flags (like link, regular file, directory marker etc.)
|
|
permPart := perm & os.ModePerm
|
|
noPermPart := perm &^ os.ModePerm
|
|
// Add the x bit: make everything +x from windows
|
|
permPart |= 0111
|
|
permPart &= 0755
|
|
|
|
return noPermPart | permPart
|
|
}
|
|
|
|
func setHeaderForSpecialDevice(hdr *tar.Header, name string, stat interface{}) (err error) {
|
|
// do nothing. no notion of Rdev, Nlink in stat on Windows
|
|
return
|
|
}
|