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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.
78 lines
2.1 KiB
Go
78 lines
2.1 KiB
Go
// Copyright 2014 Docker authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the DOCKER-LICENSE file.
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// +build !windows
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package archive
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import (
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"archive/tar"
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"errors"
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"os"
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"path/filepath"
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"syscall"
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"github.com/docker/docker/pkg/idtools"
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"golang.org/x/sys/unix"
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)
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// CanonicalTarNameForPath returns platform-specific filepath
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// to canonical posix-style path for tar archival. p is relative
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// path.
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func CanonicalTarNameForPath(p string) (string, error) {
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return p, nil // already unix-style
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}
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// fixVolumePathPrefix does platform specific processing to ensure that if
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// the path being passed in is not in a volume path format, convert it to one.
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func fixVolumePathPrefix(srcPath string) string {
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return srcPath
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}
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// getWalkRoot calculates the root path when performing a TarWithOptions.
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// We use a separate function as this is platform specific. On Linux, we
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// can't use filepath.Join(srcPath,include) because this will clean away
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// a trailing "." or "/" which may be important.
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func getWalkRoot(srcPath string, include string) string {
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return srcPath + string(filepath.Separator) + include
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}
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func getInodeFromStat(stat interface{}) (inode uint64, err error) {
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s, ok := stat.(*syscall.Stat_t)
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if ok {
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inode = uint64(s.Ino)
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}
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return
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}
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func getFileIdentity(stat interface{}) (idtools.Identity, error) {
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s, ok := stat.(*syscall.Stat_t)
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if !ok {
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return idtools.Identity{}, errors.New("cannot convert stat value to syscall.Stat_t")
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}
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return idtools.Identity{UID: int(s.Uid), GID: int(s.Gid)}, nil
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}
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func chmodTarEntry(perm os.FileMode) os.FileMode {
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return perm // noop for unix as golang APIs provide perm bits correctly
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}
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func setHeaderForSpecialDevice(hdr *tar.Header, name string, stat interface{}) (err error) {
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s, ok := stat.(*syscall.Stat_t)
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if ok {
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// Currently go does not fill in the major/minors
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if s.Mode&unix.S_IFBLK != 0 ||
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s.Mode&unix.S_IFCHR != 0 {
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hdr.Devmajor = int64(unix.Major(uint64(s.Rdev))) // nolint: unconvert
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hdr.Devminor = int64(unix.Minor(uint64(s.Rdev))) // nolint: unconvert
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}
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}
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return
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}
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