vendor: update buildkit to v0.8

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>

vendor/github.com/Microsoft/hcsshim/internal/wclayer/baselayer.go

@@ -11,6 +11,7 @@ import (
 	"github.com/Microsoft/hcsshim/internal/hcserror"
 	"github.com/Microsoft/hcsshim/internal/oc"
 	"github.com/Microsoft/hcsshim/internal/safefile"
+	"github.com/Microsoft/hcsshim/internal/winapi"
 	"go.opencensus.io/trace"
 )
 
@@ -37,7 +38,7 @@ type dirInfo struct {
 func reapplyDirectoryTimes(root *os.File, dis []dirInfo) error {
 	for i := range dis {
 		di := &dis[len(dis)-i-1] // reverse order: process child directories first
-		f, err := safefile.OpenRelative(di.path, root, syscall.GENERIC_READ|syscall.GENERIC_WRITE, syscall.FILE_SHARE_READ, safefile.FILE_OPEN, safefile.FILE_DIRECTORY_FILE)
+		f, err := safefile.OpenRelative(di.path, root, syscall.GENERIC_READ|syscall.GENERIC_WRITE, syscall.FILE_SHARE_READ, winapi.FILE_OPEN, winapi.FILE_DIRECTORY_FILE|syscall.FILE_FLAG_OPEN_REPARSE_POINT)
 		if err != nil {
 			return err
 		}
@@ -47,6 +48,7 @@ func reapplyDirectoryTimes(root *os.File, dis []dirInfo) error {
 		if err != nil {
 			return err
 		}
+
 	}
 	return nil
 }
@@ -92,14 +94,12 @@ func (w *baseLayerWriter) Add(name string, fileInfo *winio.FileBasicInfo) (err e
 
 	extraFlags := uint32(0)
 	if fileInfo.FileAttributes&syscall.FILE_ATTRIBUTE_DIRECTORY != 0 {
-		extraFlags |= safefile.FILE_DIRECTORY_FILE
-		if fileInfo.FileAttributes&syscall.FILE_ATTRIBUTE_REPARSE_POINT == 0 {
-			w.dirInfo = append(w.dirInfo, dirInfo{name, *fileInfo})
-		}
+		extraFlags |= winapi.FILE_DIRECTORY_FILE
+		w.dirInfo = append(w.dirInfo, dirInfo{name, *fileInfo})
 	}
 
 	mode := uint32(syscall.GENERIC_READ | syscall.GENERIC_WRITE | winio.WRITE_DAC | winio.WRITE_OWNER | winio.ACCESS_SYSTEM_SECURITY)
-	f, err = safefile.OpenRelative(name, w.root, mode, syscall.FILE_SHARE_READ, safefile.FILE_CREATE, extraFlags)
+	f, err = safefile.OpenRelative(name, w.root, mode, syscall.FILE_SHARE_READ, winapi.FILE_CREATE, extraFlags)
 	if err != nil {
 		return hcserror.New(err, "Failed to safefile.OpenRelative", name)
 	}

vendor/github.com/Microsoft/hcsshim/internal/wclayer/createscratchlayer.go

@@ -10,9 +10,7 @@ import (
 )
 
 // CreateScratchLayer creates and populates new read-write layer for use by a container.
-// This requires both the id of the direct parent layer, as well as the full list
-// of paths to all parent layers up to the base (and including the direct parent
-// whose id was provided).
+// This requires the full list of paths to all parent layers up to the base
 func CreateScratchLayer(ctx context.Context, path string, parentLayerPaths []string) (err error) {
 	title := "hcsshim::CreateScratchLayer"
 	ctx, span := trace.StartSpan(ctx, title)

vendor/github.com/Microsoft/hcsshim/internal/wclayer/importlayer.go

@@ -93,6 +93,19 @@ func (r *legacyLayerWriterWrapper) Close() (err error) {
 			return err
 		}
 	}
+
+	// The reapplyDirectoryTimes must be called AFTER we are done with Tombstone
+	// deletion and hard link creation. This is because Tombstone deletion and hard link
+	// creation updates the directory last write timestamps so that will change the
+	// timestamps added by the `Add` call. Some container applications depend on the
+	// correctness of these timestamps and so we should change the timestamps back to
+	// the original value (i.e the value provided in the Add call) after this
+	// processing is done.
+	err = reapplyDirectoryTimes(r.destRoot, r.changedDi)
+	if err != nil {
+		return err
+	}
+
 	// Prepare the utility VM for use if one is present in the layer.
 	if r.HasUtilityVM {
 		err := safefile.EnsureNotReparsePointRelative("UtilityVM", r.destRoot)

vendor/github.com/Microsoft/hcsshim/internal/wclayer/legacy.go

@@ -15,6 +15,7 @@ import (
 	"github.com/Microsoft/go-winio"
 	"github.com/Microsoft/hcsshim/internal/longpath"
 	"github.com/Microsoft/hcsshim/internal/safefile"
+	"github.com/Microsoft/hcsshim/internal/winapi"
 )
 
 var errorIterationCanceled = errors.New("")
@@ -341,7 +342,7 @@ type legacyLayerWriter struct {
 	backupWriter    *winio.BackupFileWriter
 	Tombstones      []string
 	HasUtilityVM    bool
-	uvmDi           []dirInfo
+	changedDi       []dirInfo
 	addedFiles      map[string]bool
 	PendingLinks    []pendingLink
 	pendingDirs     []pendingDir
@@ -472,8 +473,8 @@ func copyFileWithMetadata(srcRoot, destRoot *os.File, subPath string, isDir bool
 		srcRoot,
 		syscall.GENERIC_READ|winio.ACCESS_SYSTEM_SECURITY,
 		syscall.FILE_SHARE_READ,
-		safefile.FILE_OPEN,
-		safefile.FILE_OPEN_REPARSE_POINT)
+		winapi.FILE_OPEN,
+		winapi.FILE_OPEN_REPARSE_POINT)
 	if err != nil {
 		return nil, err
 	}
@@ -488,14 +489,14 @@ func copyFileWithMetadata(srcRoot, destRoot *os.File, subPath string, isDir bool
 
 	extraFlags := uint32(0)
 	if isDir {
-		extraFlags |= safefile.FILE_DIRECTORY_FILE
+		extraFlags |= winapi.FILE_DIRECTORY_FILE
 	}
 	dest, err := safefile.OpenRelative(
 		subPath,
 		destRoot,
 		syscall.GENERIC_READ|syscall.GENERIC_WRITE|winio.WRITE_DAC|winio.WRITE_OWNER|winio.ACCESS_SYSTEM_SECURITY,
 		syscall.FILE_SHARE_READ,
-		safefile.FILE_CREATE,
+		winapi.FILE_CREATE,
 		extraFlags)
 	if err != nil {
 		return nil, err
@@ -555,7 +556,7 @@ func cloneTree(srcRoot *os.File, destRoot *os.File, subPath string, mutatedFiles
 			if err != nil {
 				return err
 			}
-			if isDir && !isReparsePoint {
+			if isDir {
 				di = append(di, dirInfo{path: relPath, fileInfo: *fi})
 			}
 		} else {
@@ -583,6 +584,10 @@ func (w *legacyLayerWriter) Add(name string, fileInfo *winio.FileBasicInfo) erro
 		return w.initUtilityVM()
 	}
 
+	if (fileInfo.FileAttributes & syscall.FILE_ATTRIBUTE_DIRECTORY) != 0 {
+		w.changedDi = append(w.changedDi, dirInfo{path: name, fileInfo: *fileInfo})
+	}
+
 	name = filepath.Clean(name)
 	if hasPathPrefix(name, utilityVMPath) {
 		if !w.HasUtilityVM {
@@ -591,7 +596,7 @@ func (w *legacyLayerWriter) Add(name string, fileInfo *winio.FileBasicInfo) erro
 		if !hasPathPrefix(name, utilityVMFilesPath) && name != utilityVMFilesPath {
 			return errors.New("invalid UtilityVM layer")
 		}
-		createDisposition := uint32(safefile.FILE_OPEN)
+		createDisposition := uint32(winapi.FILE_OPEN)
 		if (fileInfo.FileAttributes & syscall.FILE_ATTRIBUTE_DIRECTORY) != 0 {
 			st, err := safefile.LstatRelative(name, w.destRoot)
 			if err != nil && !os.IsNotExist(err) {
@@ -612,16 +617,13 @@ func (w *legacyLayerWriter) Add(name string, fileInfo *winio.FileBasicInfo) erro
 					return err
 				}
 			}
-			if fileInfo.FileAttributes&syscall.FILE_ATTRIBUTE_REPARSE_POINT == 0 {
-				w.uvmDi = append(w.uvmDi, dirInfo{path: name, fileInfo: *fileInfo})
-			}
 		} else {
 			// Overwrite any existing hard link.
 			err := safefile.RemoveRelative(name, w.destRoot)
 			if err != nil && !os.IsNotExist(err) {
 				return err
 			}
-			createDisposition = safefile.FILE_CREATE
+			createDisposition = winapi.FILE_CREATE
 		}
 
 		f, err := safefile.OpenRelative(
@@ -630,7 +632,7 @@ func (w *legacyLayerWriter) Add(name string, fileInfo *winio.FileBasicInfo) erro
 			syscall.GENERIC_READ|syscall.GENERIC_WRITE|winio.WRITE_DAC|winio.WRITE_OWNER|winio.ACCESS_SYSTEM_SECURITY,
 			syscall.FILE_SHARE_READ,
 			createDisposition,
-			safefile.FILE_OPEN_REPARSE_POINT,
+			winapi.FILE_OPEN_REPARSE_POINT,
 		)
 		if err != nil {
 			return err
@@ -667,7 +669,7 @@ func (w *legacyLayerWriter) Add(name string, fileInfo *winio.FileBasicInfo) erro
 		w.currentIsDir = true
 	}
 
-	f, err := safefile.OpenRelative(fname, w.root, syscall.GENERIC_READ|syscall.GENERIC_WRITE, syscall.FILE_SHARE_READ, safefile.FILE_CREATE, 0)
+	f, err := safefile.OpenRelative(fname, w.root, syscall.GENERIC_READ|syscall.GENERIC_WRITE, syscall.FILE_SHARE_READ, winapi.FILE_CREATE, 0)
 	if err != nil {
 		return err
 	}
@@ -805,11 +807,5 @@ func (w *legacyLayerWriter) Close() error {
 			return err
 		}
 	}
-	if w.HasUtilityVM {
-		err := reapplyDirectoryTimes(w.destRoot, w.uvmDi)
-		if err != nil {
-			return err
-		}
-	}
 	return nil
 }

vendor/github.com/Microsoft/hcsshim/internal/wclayer/wclayer.go

@@ -1,3 +1,6 @@
+// Package wclayer provides bindings to HCS's legacy layer management API and
+// provides a higher level interface around these calls for container layer
+// management.
 package wclayer
 
 import "github.com/Microsoft/go-winio/pkg/guid"