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ignore lchown error on docker cp

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Docker-DCO-1.1-Signed-off-by: Victor Vieux <vieux@docker.com> (github: vieux)
This commit is contained in:
Victor Vieux 2014-05-21 00:10:35 +00:00
parent 5eef0a28cb
commit 9e51b7abae
4 changed files with 12 additions and 10 deletions
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2
api/client/commands.go
View file

@ -2058,7 +2058,7 @@ func (cli *DockerCli) CmdCp(args ...string) error {
}
if statusCode == 200 {
if err := archive.Untar(stream, copyData.Get("HostPath"), nil); err != nil {
if err := archive.Untar(stream, copyData.Get("HostPath"), &archive.TarOptions{NoLchown: true}); err != nil {
return err
}
}

8
archive/archive.go
View file

@ -28,6 +28,7 @@ type (
TarOptions struct {
Includes []string
Compression Compression
NoLchown bool
}
)
@ -179,7 +180,7 @@ func addTarFile(path, name string, tw *tar.Writer) error {
return nil
}
func createTarFile(path, extractDir string, hdr *tar.Header, reader io.Reader) error {
func createTarFile(path, extractDir string, hdr *tar.Header, reader io.Reader, Lchown bool) error {
// hdr.Mode is in linux format, which we can use for sycalls,
// but for os.Foo() calls we need the mode converted to os.FileMode,
// so use hdrInfo.Mode() (they differ for e.g. setuid bits)
@ -240,7 +241,7 @@ func createTarFile(path, extractDir string, hdr *tar.Header, reader io.Reader) e
return fmt.Errorf("Unhandled tar header type %d\n", hdr.Typeflag)
}
if err := os.Lchown(path, hdr.Uid, hdr.Gid); err != nil {
if err := os.Lchown(path, hdr.Uid, hdr.Gid); err != nil && Lchown {
return err
}
@ -415,8 +416,7 @@ func Untar(archive io.Reader, dest string, options *TarOptions) error {
}
}
}
if err := createTarFile(path, dest, hdr, tr); err != nil {
if err := createTarFile(path, dest, hdr, tr, options == nil || !options.NoLchown); err != nil {
return err
}

5
archive/archive_test.go
View file

@ -3,7 +3,6 @@ package archive
import (
"bytes"
"fmt"
"github.com/dotcloud/docker/vendor/src/code.google.com/p/go/src/pkg/archive/tar"
"io"
"io/ioutil"
"os"
@ -11,6 +10,8 @@ import (
"path"
"testing"
"time"
"github.com/dotcloud/docker/vendor/src/code.google.com/p/go/src/pkg/archive/tar"
)
func TestCmdStreamLargeStderr(t *testing.T) {
@ -132,7 +133,7 @@ func TestTarUntar(t *testing.T) {
// Failing prevents the archives from being uncompressed during ADD
func TestTypeXGlobalHeaderDoesNotFail(t *testing.T) {
hdr := tar.Header{Typeflag: tar.TypeXGlobalHeader}
err := createTarFile("pax_global_header", "some_dir", &hdr, nil)
err := createTarFile("pax_global_header", "some_dir", &hdr, nil, true)
if err != nil {
t.Fatal(err)
}

7
archive/diff.go
View file

@ -2,13 +2,14 @@ package archive
import (
"fmt"
"github.com/dotcloud/docker/vendor/src/code.google.com/p/go/src/pkg/archive/tar"
"io"
"io/ioutil"
"os"
"path/filepath"
"strings"
"syscall"
"github.com/dotcloud/docker/vendor/src/code.google.com/p/go/src/pkg/archive/tar"
)
// Linux device nodes are a bit weird due to backwards compat with 16 bit device nodes.
@ -79,7 +80,7 @@ func ApplyLayer(dest string, layer ArchiveReader) error {
}
defer os.RemoveAll(aufsTempdir)
}
if err := createTarFile(filepath.Join(aufsTempdir, basename), dest, hdr, tr); err != nil {
if err := createTarFile(filepath.Join(aufsTempdir, basename), dest, hdr, tr, true); err != nil {
return err
}
}
@ -126,7 +127,7 @@ func ApplyLayer(dest string, layer ArchiveReader) error {
srcData = tmpFile
}
if err := createTarFile(path, dest, srcHdr, srcData); err != nil {
if err := createTarFile(path, dest, srcHdr, srcData, true); err != nil {
return err
}