Switch to github.com/golang/dep for vendoring

Signed-off-by: Mrunal Patel <mrunalp@gmail.com>

vendor/github.com/containers/storage/pkg/chrootarchive/archive_test.go

@@ -0,0 +1,394 @@
+package chrootarchive
+
+import (
+	"bytes"
+	"fmt"
+	"hash/crc32"
+	"io"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+	"runtime"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/containers/storage/pkg/archive"
+	"github.com/containers/storage/pkg/reexec"
+	"github.com/containers/storage/pkg/system"
+)
+
+func init() {
+	reexec.Init()
+}
+
+func TestChrootTarUntar(t *testing.T) {
+	tmpdir, err := ioutil.TempDir("", "docker-TestChrootTarUntar")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(tmpdir)
+	src := filepath.Join(tmpdir, "src")
+	if err := system.MkdirAll(src, 0700); err != nil {
+		t.Fatal(err)
+	}
+	if err := ioutil.WriteFile(filepath.Join(src, "toto"), []byte("hello toto"), 0644); err != nil {
+		t.Fatal(err)
+	}
+	if err := ioutil.WriteFile(filepath.Join(src, "lolo"), []byte("hello lolo"), 0644); err != nil {
+		t.Fatal(err)
+	}
+	stream, err := archive.Tar(src, archive.Uncompressed)
+	if err != nil {
+		t.Fatal(err)
+	}
+	dest := filepath.Join(tmpdir, "src")
+	if err := system.MkdirAll(dest, 0700); err != nil {
+		t.Fatal(err)
+	}
+	if err := Untar(stream, dest, &archive.TarOptions{ExcludePatterns: []string{"lolo"}}); err != nil {
+		t.Fatal(err)
+	}
+}
+
+// gh#10426: Verify the fix for having a huge excludes list (like on `docker load` with large # of
+// local images)
+func TestChrootUntarWithHugeExcludesList(t *testing.T) {
+	tmpdir, err := ioutil.TempDir("", "docker-TestChrootUntarHugeExcludes")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(tmpdir)
+	src := filepath.Join(tmpdir, "src")
+	if err := system.MkdirAll(src, 0700); err != nil {
+		t.Fatal(err)
+	}
+	if err := ioutil.WriteFile(filepath.Join(src, "toto"), []byte("hello toto"), 0644); err != nil {
+		t.Fatal(err)
+	}
+	stream, err := archive.Tar(src, archive.Uncompressed)
+	if err != nil {
+		t.Fatal(err)
+	}
+	dest := filepath.Join(tmpdir, "dest")
+	if err := system.MkdirAll(dest, 0700); err != nil {
+		t.Fatal(err)
+	}
+	options := &archive.TarOptions{}
+	//65534 entries of 64-byte strings ~= 4MB of environment space which should overflow
+	//on most systems when passed via environment or command line arguments
+	excludes := make([]string, 65534, 65534)
+	for i := 0; i < 65534; i++ {
+		excludes[i] = strings.Repeat(string(i), 64)
+	}
+	options.ExcludePatterns = excludes
+	if err := Untar(stream, dest, options); err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestChrootUntarEmptyArchive(t *testing.T) {
+	tmpdir, err := ioutil.TempDir("", "docker-TestChrootUntarEmptyArchive")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(tmpdir)
+	if err := Untar(nil, tmpdir, nil); err == nil {
+		t.Fatal("expected error on empty archive")
+	}
+}
+
+func prepareSourceDirectory(numberOfFiles int, targetPath string, makeSymLinks bool) (int, error) {
+	fileData := []byte("fooo")
+	for n := 0; n < numberOfFiles; n++ {
+		fileName := fmt.Sprintf("file-%d", n)
+		if err := ioutil.WriteFile(filepath.Join(targetPath, fileName), fileData, 0700); err != nil {
+			return 0, err
+		}
+		if makeSymLinks {
+			if err := os.Symlink(filepath.Join(targetPath, fileName), filepath.Join(targetPath, fileName+"-link")); err != nil {
+				return 0, err
+			}
+		}
+	}
+	totalSize := numberOfFiles * len(fileData)
+	return totalSize, nil
+}
+
+func getHash(filename string) (uint32, error) {
+	stream, err := ioutil.ReadFile(filename)
+	if err != nil {
+		return 0, err
+	}
+	hash := crc32.NewIEEE()
+	hash.Write(stream)
+	return hash.Sum32(), nil
+}
+
+func compareDirectories(src string, dest string) error {
+	changes, err := archive.ChangesDirs(dest, src)
+	if err != nil {
+		return err
+	}
+	if len(changes) > 0 {
+		return fmt.Errorf("Unexpected differences after untar: %v", changes)
+	}
+	return nil
+}
+
+func compareFiles(src string, dest string) error {
+	srcHash, err := getHash(src)
+	if err != nil {
+		return err
+	}
+	destHash, err := getHash(dest)
+	if err != nil {
+		return err
+	}
+	if srcHash != destHash {
+		return fmt.Errorf("%s is different from %s", src, dest)
+	}
+	return nil
+}
+
+func TestChrootTarUntarWithSymlink(t *testing.T) {
+	// TODO Windows: Figure out why this is failing
+	if runtime.GOOS == "windows" {
+		t.Skip("Failing on Windows")
+	}
+	tmpdir, err := ioutil.TempDir("", "docker-TestChrootTarUntarWithSymlink")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(tmpdir)
+	src := filepath.Join(tmpdir, "src")
+	if err := system.MkdirAll(src, 0700); err != nil {
+		t.Fatal(err)
+	}
+	if _, err := prepareSourceDirectory(10, src, true); err != nil {
+		t.Fatal(err)
+	}
+	dest := filepath.Join(tmpdir, "dest")
+	if err := TarUntar(src, dest); err != nil {
+		t.Fatal(err)
+	}
+	if err := compareDirectories(src, dest); err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestChrootCopyWithTar(t *testing.T) {
+	// TODO Windows: Figure out why this is failing
+	if runtime.GOOS == "windows" {
+		t.Skip("Failing on Windows")
+	}
+	tmpdir, err := ioutil.TempDir("", "docker-TestChrootCopyWithTar")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(tmpdir)
+	src := filepath.Join(tmpdir, "src")
+	if err := system.MkdirAll(src, 0700); err != nil {
+		t.Fatal(err)
+	}
+	if _, err := prepareSourceDirectory(10, src, true); err != nil {
+		t.Fatal(err)
+	}
+
+	// Copy directory
+	dest := filepath.Join(tmpdir, "dest")
+	if err := CopyWithTar(src, dest); err != nil {
+		t.Fatal(err)
+	}
+	if err := compareDirectories(src, dest); err != nil {
+		t.Fatal(err)
+	}
+
+	// Copy file
+	srcfile := filepath.Join(src, "file-1")
+	dest = filepath.Join(tmpdir, "destFile")
+	destfile := filepath.Join(dest, "file-1")
+	if err := CopyWithTar(srcfile, destfile); err != nil {
+		t.Fatal(err)
+	}
+	if err := compareFiles(srcfile, destfile); err != nil {
+		t.Fatal(err)
+	}
+
+	// Copy symbolic link
+	srcLinkfile := filepath.Join(src, "file-1-link")
+	dest = filepath.Join(tmpdir, "destSymlink")
+	destLinkfile := filepath.Join(dest, "file-1-link")
+	if err := CopyWithTar(srcLinkfile, destLinkfile); err != nil {
+		t.Fatal(err)
+	}
+	if err := compareFiles(srcLinkfile, destLinkfile); err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestChrootCopyFileWithTar(t *testing.T) {
+	tmpdir, err := ioutil.TempDir("", "docker-TestChrootCopyFileWithTar")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(tmpdir)
+	src := filepath.Join(tmpdir, "src")
+	if err := system.MkdirAll(src, 0700); err != nil {
+		t.Fatal(err)
+	}
+	if _, err := prepareSourceDirectory(10, src, true); err != nil {
+		t.Fatal(err)
+	}
+
+	// Copy directory
+	dest := filepath.Join(tmpdir, "dest")
+	if err := CopyFileWithTar(src, dest); err == nil {
+		t.Fatal("Expected error on copying directory")
+	}
+
+	// Copy file
+	srcfile := filepath.Join(src, "file-1")
+	dest = filepath.Join(tmpdir, "destFile")
+	destfile := filepath.Join(dest, "file-1")
+	if err := CopyFileWithTar(srcfile, destfile); err != nil {
+		t.Fatal(err)
+	}
+	if err := compareFiles(srcfile, destfile); err != nil {
+		t.Fatal(err)
+	}
+
+	// Copy symbolic link
+	srcLinkfile := filepath.Join(src, "file-1-link")
+	dest = filepath.Join(tmpdir, "destSymlink")
+	destLinkfile := filepath.Join(dest, "file-1-link")
+	if err := CopyFileWithTar(srcLinkfile, destLinkfile); err != nil {
+		t.Fatal(err)
+	}
+	if err := compareFiles(srcLinkfile, destLinkfile); err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestChrootUntarPath(t *testing.T) {
+	// TODO Windows: Figure out why this is failing
+	if runtime.GOOS == "windows" {
+		t.Skip("Failing on Windows")
+	}
+	tmpdir, err := ioutil.TempDir("", "docker-TestChrootUntarPath")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(tmpdir)
+	src := filepath.Join(tmpdir, "src")
+	if err := system.MkdirAll(src, 0700); err != nil {
+		t.Fatal(err)
+	}
+	if _, err := prepareSourceDirectory(10, src, true); err != nil {
+		t.Fatal(err)
+	}
+	dest := filepath.Join(tmpdir, "dest")
+	// Untar a directory
+	if err := UntarPath(src, dest); err == nil {
+		t.Fatal("Expected error on untaring a directory")
+	}
+
+	// Untar a tar file
+	stream, err := archive.Tar(src, archive.Uncompressed)
+	if err != nil {
+		t.Fatal(err)
+	}
+	buf := new(bytes.Buffer)
+	buf.ReadFrom(stream)
+	tarfile := filepath.Join(tmpdir, "src.tar")
+	if err := ioutil.WriteFile(tarfile, buf.Bytes(), 0644); err != nil {
+		t.Fatal(err)
+	}
+	if err := UntarPath(tarfile, dest); err != nil {
+		t.Fatal(err)
+	}
+	if err := compareDirectories(src, dest); err != nil {
+		t.Fatal(err)
+	}
+}
+
+type slowEmptyTarReader struct {
+	size      int
+	offset    int
+	chunkSize int
+}
+
+// Read is a slow reader of an empty tar (like the output of "tar c --files-from /dev/null")
+func (s *slowEmptyTarReader) Read(p []byte) (int, error) {
+	time.Sleep(100 * time.Millisecond)
+	count := s.chunkSize
+	if len(p) < s.chunkSize {
+		count = len(p)
+	}
+	for i := 0; i < count; i++ {
+		p[i] = 0
+	}
+	s.offset += count
+	if s.offset > s.size {
+		return count, io.EOF
+	}
+	return count, nil
+}
+
+func TestChrootUntarEmptyArchiveFromSlowReader(t *testing.T) {
+	tmpdir, err := ioutil.TempDir("", "docker-TestChrootUntarEmptyArchiveFromSlowReader")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(tmpdir)
+	dest := filepath.Join(tmpdir, "dest")
+	if err := system.MkdirAll(dest, 0700); err != nil {
+		t.Fatal(err)
+	}
+	stream := &slowEmptyTarReader{size: 10240, chunkSize: 1024}
+	if err := Untar(stream, dest, nil); err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestChrootApplyEmptyArchiveFromSlowReader(t *testing.T) {
+	tmpdir, err := ioutil.TempDir("", "docker-TestChrootApplyEmptyArchiveFromSlowReader")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(tmpdir)
+	dest := filepath.Join(tmpdir, "dest")
+	if err := system.MkdirAll(dest, 0700); err != nil {
+		t.Fatal(err)
+	}
+	stream := &slowEmptyTarReader{size: 10240, chunkSize: 1024}
+	if _, err := ApplyLayer(dest, stream); err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestChrootApplyDotDotFile(t *testing.T) {
+	tmpdir, err := ioutil.TempDir("", "docker-TestChrootApplyDotDotFile")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer os.RemoveAll(tmpdir)
+	src := filepath.Join(tmpdir, "src")
+	if err := system.MkdirAll(src, 0700); err != nil {
+		t.Fatal(err)
+	}
+	if err := ioutil.WriteFile(filepath.Join(src, "..gitme"), []byte(""), 0644); err != nil {
+		t.Fatal(err)
+	}
+	stream, err := archive.Tar(src, archive.Uncompressed)
+	if err != nil {
+		t.Fatal(err)
+	}
+	dest := filepath.Join(tmpdir, "dest")
+	if err := system.MkdirAll(dest, 0700); err != nil {
+		t.Fatal(err)
+	}
+	if _, err := ApplyLayer(dest, stream); err != nil {
+		t.Fatal(err)
+	}
+}

vendor/github.com/containers/storage/pkg/chrootarchive/archive_unix.go

@@ -16,7 +16,7 @@ import (
 	"github.com/containers/storage/pkg/reexec"
 )
 
-// untar is the entry-point for docker-untar on re-exec. This is not used on
+// untar is the entry-point for storage-untar on re-exec. This is not used on
 // Windows as it does not support chroot, hence no point sandboxing through
 // chroot and rexec.
 func untar() {
@@ -57,7 +57,7 @@ func invokeUnpack(decompressedArchive io.Reader, dest string, options *archive.T
 		return fmt.Errorf("Untar pipe failure: %v", err)
 	}
 
-	cmd := reexec.Command("docker-untar", dest)
+	cmd := reexec.Command("storage-untar", dest)
 	cmd.Stdin = decompressedArchive
 
 	cmd.ExtraFiles = append(cmd.ExtraFiles, r)
@@ -75,7 +75,7 @@ func invokeUnpack(decompressedArchive io.Reader, dest string, options *archive.T
 	w.Close()
 
 	if err := cmd.Wait(); err != nil {
-		// when `xz -d -c -q | docker-untar ...` failed on docker-untar side,
+		// when `xz -d -c -q | storage-untar ...` failed on storage-untar side,
 		// we need to exhaust `xz`'s output, otherwise the `xz` side will be
 		// pending on write pipe forever
 		io.Copy(ioutil.Discard, decompressedArchive)

vendor/github.com/containers/storage/pkg/chrootarchive/diff_unix.go

@@ -21,7 +21,7 @@ type applyLayerResponse struct {
 	LayerSize int64 `json:"layerSize"`
 }
 
-// applyLayer is the entry-point for docker-applylayer on re-exec. This is not
+// applyLayer is the entry-point for storage-applylayer on re-exec. This is not
 // used on Windows as it does not support chroot, hence no point sandboxing
 // through chroot and rexec.
 func applyLayer() {
@@ -49,7 +49,7 @@ func applyLayer() {
 		fatal(err)
 	}
 
-	if tmpDir, err = ioutil.TempDir("/", "temp-docker-extract"); err != nil {
+	if tmpDir, err = ioutil.TempDir("/", "temp-storage-extract"); err != nil {
 		fatal(err)
 	}
 
@@ -98,7 +98,7 @@ func applyLayerHandler(dest string, layer archive.Reader, options *archive.TarOp
 		return 0, fmt.Errorf("ApplyLayer json encode: %v", err)
 	}
 
-	cmd := reexec.Command("docker-applyLayer", dest)
+	cmd := reexec.Command("storage-applyLayer", dest)
 	cmd.Stdin = layer
 	cmd.Env = append(cmd.Env, fmt.Sprintf("OPT=%s", data))
 

vendor/github.com/containers/storage/pkg/chrootarchive/diff_windows.go

@@ -29,9 +29,9 @@ func applyLayerHandler(dest string, layer archive.Reader, options *archive.TarOp
 		layer = decompressed
 	}
 
-	tmpDir, err := ioutil.TempDir(os.Getenv("temp"), "temp-docker-extract")
+	tmpDir, err := ioutil.TempDir(os.Getenv("temp"), "temp-storage-extract")
 	if err != nil {
-		return 0, fmt.Errorf("ApplyLayer failed to create temp-docker-extract under %s. %s", dest, err)
+		return 0, fmt.Errorf("ApplyLayer failed to create temp-storage-extract under %s. %s", dest, err)
 	}
 
 	s, err := archive.UnpackLayer(dest, layer, nil)

vendor/github.com/containers/storage/pkg/chrootarchive/init_unix.go

@@ -12,8 +12,8 @@ import (
 )
 
 func init() {
-	reexec.Register("docker-applyLayer", applyLayer)
-	reexec.Register("docker-untar", untar)
+	reexec.Register("storage-applyLayer", applyLayer)
+	reexec.Register("storage-untar", untar)
 }
 
 func fatal(err error) {