vendor: github.com/tonistiigi/fsutil 0834f99b7b85462efb69b4f571a4fa3ca7da5ac9

full diff: ae3a8d7530...0834f99b7b

- walker: fix notadir error
- improving error returns
    - more typed errors
    - remove extra verbosity (eg. PathError already contains action and path)
    - ensure stack traces are added to errors
- various testing and linting fixes
- copy: use Clonefileat from golang.org/x/sys/unix on macOS
- go.mod: update opencontainers/go-digest v1.0.0
- github: test go1.15

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

vendor.conf

@@ -67,7 +67,7 @@ github.com/sirupsen/logrus                          6699a89a232f3db797f2e2806398
 github.com/spf13/cobra                              86f8bfd7fef868a174e1b606783bd7f5c82ddf8f # v1.1.1
 github.com/spf13/pflag                              2e9d26c8c37aae03e3f9d4e90b7116f5accb7cab # v1.0.5
 github.com/theupdateframework/notary                d6e1431feb32348e0650bf7551ac5cffd01d857b # v0.6.1
-github.com/tonistiigi/fsutil                        ae3a8d753069d0f76fbee396457e8b6cfd7cb8c3
+github.com/tonistiigi/fsutil                        0834f99b7b85462efb69b4f571a4fa3ca7da5ac9
 github.com/tonistiigi/go-rosetta                    f79598599c5d34ea253b56a1d7c89bc6a96de7db
 github.com/tonistiigi/units                         6950e57a87eaf136bbe44ef2ec8e75b9e3569de2
 github.com/xeipuuv/gojsonpointer                    02993c407bfbf5f6dae44c4f4b1cf6a39b5fc5bb

vendor/github.com/docker/docker/builder/dockerignore/deprecated.go

@@ -0,0 +1,17 @@
+// Package dockerignore is deprecated. Use github.com/moby/buildkit/frontend/dockerfile/dockerignore instead.
+package dockerignore
+
+import (
+	"io"
+
+	"github.com/moby/buildkit/frontend/dockerfile/dockerignore"
+)
+
+// ReadAll reads a .dockerignore file and returns the list of file patterns
+// to ignore. Note this will trim whitespace from each line as well
+// as use GO's "clean" func to get the shortest/cleanest path for each.
+//
+// Deprecated: use github.com/moby/buildkit/frontend/dockerfile/dockerignore.ReadAll instead.
+func ReadAll(reader io.Reader) ([]string, error) {
+	return dockerignore.ReadAll(reader)
+}

vendor/github.com/tonistiigi/fsutil/chtimes_nolinux.go

@@ -5,16 +5,18 @@ package fsutil
 import (
 	"os"
 	"time"
+
+	"github.com/pkg/errors"
 )
 
 func chtimes(path string, un int64) error {
 	mtime := time.Unix(0, un)
 	fi, err := os.Lstat(path)
 	if err != nil {
-		return err
+		return errors.WithStack(err)
 	}
 	if fi.Mode()&os.ModeSymlink != 0 {
 		return nil
 	}
-	return os.Chtimes(path, mtime, mtime)
+	return errors.WithStack(os.Chtimes(path, mtime, mtime))
 }

vendor/github.com/tonistiigi/fsutil/diff.go

@@ -19,9 +19,9 @@ type HandleChangeFn func(ChangeKind, string, os.FileInfo, error) error
 
 type ContentHasher func(*types.Stat) (hash.Hash, error)
 
-func GetWalkerFn(root string) walkerFn {
+func getWalkerFn(root string) walkerFn {
 	return func(ctx context.Context, pathC chan<- *currentPath) error {
-		return Walk(ctx, root, nil, func(path string, f os.FileInfo, err error) error {
+		return errors.Wrap(Walk(ctx, root, nil, func(path string, f os.FileInfo, err error) error {
 			if err != nil {
 				return err
 			}
@@ -42,7 +42,7 @@ func GetWalkerFn(root string) walkerFn {
 			case pathC <- p:
 				return nil
 			}
-		})
+		}), "failed to walk")
 	}
 }
 

vendor/github.com/tonistiigi/fsutil/diff_containerd_linux.go

@@ -1,37 +0,0 @@
-package fsutil
-
-import (
-	"bytes"
-	"syscall"
-
-	"github.com/containerd/continuity/sysx"
-	"github.com/pkg/errors"
-)
-
-// compareSysStat returns whether the stats are equivalent,
-// whether the files are considered the same file, and
-// an error
-func compareSysStat(s1, s2 interface{}) (bool, error) {
-	ls1, ok := s1.(*syscall.Stat_t)
-	if !ok {
-		return false, nil
-	}
-	ls2, ok := s2.(*syscall.Stat_t)
-	if !ok {
-		return false, nil
-	}
-
-	return ls1.Mode == ls2.Mode && ls1.Uid == ls2.Uid && ls1.Gid == ls2.Gid && ls1.Rdev == ls2.Rdev, nil
-}
-
-func compareCapabilities(p1, p2 string) (bool, error) {
-	c1, err := sysx.LGetxattr(p1, "security.capability")
-	if err != nil && err != syscall.ENODATA {
-		return false, errors.Wrapf(err, "failed to get xattr for %s", p1)
-	}
-	c2, err := sysx.LGetxattr(p2, "security.capability")
-	if err != nil && err != syscall.ENODATA {
-		return false, errors.Wrapf(err, "failed to get xattr for %s", p2)
-	}
-	return bytes.Equal(c1, c2), nil
-}

vendor/github.com/tonistiigi/fsutil/diskwriter.go

@@ -8,6 +8,7 @@ import (
 	"path/filepath"
 	"strconv"
 	"sync"
+	"syscall"
 	"time"
 
 	"github.com/opencontainers/go-digest"
@@ -32,7 +33,6 @@ type DiskWriter struct {
 	opt  DiskWriterOpt
 	dest string
 
-	wg     sync.WaitGroup
 	ctx    context.Context
 	cancel func()
 	eg     *errgroup.Group
@@ -104,7 +104,7 @@ func (dw *DiskWriter) HandleChange(kind ChangeKind, p string, fi os.FileInfo, er
 
 	stat, ok := fi.Sys().(*types.Stat)
 	if !ok {
-		return errors.Errorf("%s invalid change without stat information", p)
+		return errors.WithStack(&os.PathError{Path: p, Err: syscall.EBADMSG, Op: "change without stat info"})
 	}
 
 	statCopy := *stat
@@ -118,13 +118,13 @@ func (dw *DiskWriter) HandleChange(kind ChangeKind, p string, fi os.FileInfo, er
 	rename := true
 	oldFi, err := os.Lstat(destPath)
 	if err != nil {
-		if os.IsNotExist(err) {
+		if errors.Is(err, os.ErrNotExist) {
 			if kind != ChangeKindAdd {
-				return errors.Wrapf(err, "invalid addition: %s", destPath)
+				return errors.Wrap(err, "modify/rm")
 			}
 			rename = false
 		} else {
-			return errors.Wrapf(err, "failed to stat %s", destPath)
+			return errors.WithStack(err)
 		}
 	}
 
@@ -285,7 +285,6 @@ func (hw *hashedWriter) Digest() digest.Digest {
 
 type lazyFileWriter struct {
 	dest     string
-	ctx      context.Context
 	f        *os.File
 	fileMode *os.FileMode
 }

vendor/github.com/tonistiigi/fsutil/diskwriter_unix.go

@@ -17,17 +17,17 @@ func rewriteMetadata(p string, stat *types.Stat) error {
 	}
 
 	if err := os.Lchown(p, int(stat.Uid), int(stat.Gid)); err != nil {
-		return errors.Wrapf(err, "failed to lchown %s", p)
+		return errors.WithStack(err)
 	}
 
 	if os.FileMode(stat.Mode)&os.ModeSymlink == 0 {
 		if err := os.Chmod(p, os.FileMode(stat.Mode)); err != nil {
-			return errors.Wrapf(err, "failed to chown %s", p)
+			return errors.WithStack(err)
 		}
 	}
 
 	if err := chtimes(p, stat.ModTime); err != nil {
-		return errors.Wrapf(err, "failed to chtimes %s", p)
+		return err
 	}
 
 	return nil
@@ -46,7 +46,7 @@ func handleTarTypeBlockCharFifo(path string, stat *types.Stat) error {
 	}
 
 	if err := syscall.Mknod(path, mode, int(mkdev(stat.Devmajor, stat.Devminor))); err != nil {
-		return err
+		return errors.WithStack(err)
 	}
 	return nil
 }

vendor/github.com/tonistiigi/fsutil/followlinks.go

@@ -77,10 +77,10 @@ func (r *symlinkResolver) readSymlink(p string, allowWildcard bool) ([]string, e
 	if allowWildcard && containsWildcards(base) {
 		fis, err := ioutil.ReadDir(filepath.Dir(realPath))
 		if err != nil {
-			if os.IsNotExist(err) {
+			if errors.Is(err, os.ErrNotExist) {
 				return nil, nil
 			}
-			return nil, errors.Wrapf(err, "failed to read dir %s", filepath.Dir(realPath))
+			return nil, errors.Wrap(err, "readdir")
 		}
 		var out []string
 		for _, f := range fis {
@@ -97,17 +97,17 @@ func (r *symlinkResolver) readSymlink(p string, allowWildcard bool) ([]string, e
 
 	fi, err := os.Lstat(realPath)
 	if err != nil {
-		if os.IsNotExist(err) {
+		if errors.Is(err, os.ErrNotExist) {
 			return nil, nil
 		}
-		return nil, errors.Wrapf(err, "failed to lstat %s", realPath)
+		return nil, errors.WithStack(err)
 	}
 	if fi.Mode()&os.ModeSymlink == 0 {
 		return nil, nil
 	}
 	link, err := os.Readlink(realPath)
 	if err != nil {
-		return nil, errors.Wrapf(err, "failed to readlink %s", realPath)
+		return nil, errors.WithStack(err)
 	}
 	link = filepath.Clean(link)
 	if filepath.IsAbs(link) {

vendor/github.com/tonistiigi/fsutil/fs.go

@@ -9,6 +9,7 @@ import (
 	"path/filepath"
 	"sort"
 	"strings"
+	"syscall"
 
 	"github.com/pkg/errors"
 	"github.com/tonistiigi/fsutil/types"
@@ -36,7 +37,8 @@ func (fs *fs) Walk(ctx context.Context, fn filepath.WalkFunc) error {
 }
 
 func (fs *fs) Open(p string) (io.ReadCloser, error) {
-	return os.Open(filepath.Join(fs.root, p))
+	rc, err := os.Open(filepath.Join(fs.root, p))
+	return rc, errors.WithStack(err)
 }
 
 type Dir struct {
@@ -51,10 +53,10 @@ func SubDirFS(dirs []Dir) (FS, error) {
 	m := map[string]Dir{}
 	for _, d := range dirs {
 		if path.Base(d.Stat.Path) != d.Stat.Path {
-			return nil, errors.Errorf("subdir %s must be single file", d.Stat.Path)
+			return nil, errors.WithStack(&os.PathError{Path: d.Stat.Path, Err: syscall.EISDIR, Op: "invalid path"})
 		}
 		if _, ok := m[d.Stat.Path]; ok {
-			return nil, errors.Errorf("invalid path %s", d.Stat.Path)
+			return nil, errors.WithStack(&os.PathError{Path: d.Stat.Path, Err: syscall.EEXIST, Op: "duplicate path"})
 		}
 		m[d.Stat.Path] = d
 	}
@@ -70,7 +72,7 @@ func (fs *subDirFS) Walk(ctx context.Context, fn filepath.WalkFunc) error {
 	for _, d := range fs.dirs {
 		fi := &StatInfo{Stat: &d.Stat}
 		if !fi.IsDir() {
-			return errors.Errorf("fs subdir %s not mode directory", d.Stat.Path)
+			return errors.WithStack(&os.PathError{Path: d.Stat.Path, Err: syscall.ENOTDIR, Op: "walk subdir"})
 		}
 		if err := fn(d.Stat.Path, fi, nil); err != nil {
 			return err
@@ -78,7 +80,7 @@ func (fs *subDirFS) Walk(ctx context.Context, fn filepath.WalkFunc) error {
 		if err := d.FS.Walk(ctx, func(p string, fi os.FileInfo, err error) error {
 			stat, ok := fi.Sys().(*types.Stat)
 			if !ok {
-				return errors.Wrapf(err, "invalid fileinfo without stat info: %s", p)
+				return errors.WithStack(&os.PathError{Path: d.Stat.Path, Err: syscall.EBADMSG, Op: "fileinfo without stat info"})
 			}
 			stat.Path = path.Join(d.Stat.Path, stat.Path)
 			if stat.Linkname != "" {
@@ -105,7 +107,7 @@ func (fs *subDirFS) Open(p string) (io.ReadCloser, error) {
 	}
 	d, ok := fs.m[parts[0]]
 	if !ok {
-		return nil, os.ErrNotExist
+		return nil, errors.WithStack(&os.PathError{Path: parts[0], Err: syscall.ENOENT, Op: "open"})
 	}
 	return d.FS.Open(parts[1])
 }

vendor/github.com/tonistiigi/fsutil/go.mod

@@ -5,21 +5,16 @@ go 1.13
 require (
 	github.com/Microsoft/hcsshim v0.8.9 // indirect
 	github.com/containerd/continuity v0.0.0-20190426062206-aaeac12a7ffc
-	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/docker/docker v0.0.0-20200511152416-a93e9eb0e95c
 	github.com/gogo/protobuf v1.3.1
-	github.com/gotestyourself/gotestyourself v2.2.0+incompatible // indirect
 	github.com/moby/sys/mount v0.1.0 // indirect
 	github.com/moby/sys/mountinfo v0.1.3 // indirect
-	github.com/onsi/ginkgo v1.7.0 // indirect
-	github.com/onsi/gomega v1.4.3 // indirect
-	github.com/opencontainers/go-digest v1.0.0-rc1
+	github.com/opencontainers/go-digest v1.0.0
 	github.com/opencontainers/image-spec v1.0.1 // indirect
 	github.com/opencontainers/runc v1.0.0-rc10 // indirect
 	github.com/pkg/errors v0.9.1
 	github.com/stretchr/testify v1.5.1
 	golang.org/x/sync v0.0.0-20190423024810-112230192c58
-	golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae
-	gopkg.in/airbrake/gobrake.v2 v2.0.9 // indirect
-	gopkg.in/gemnasium/logrus-airbrake-hook.v2 v2.1.2 // indirect
+	golang.org/x/sys v0.0.0-20200917073148-efd3b9a0ff20
+	gotest.tools/v3 v3.0.2 // indirect
 )

vendor/github.com/tonistiigi/fsutil/hardlinks.go

@@ -2,6 +2,7 @@ package fsutil
 
 import (
 	"os"
+	"syscall"
 
 	"github.com/pkg/errors"
 	"github.com/tonistiigi/fsutil/types"
@@ -28,7 +29,7 @@ func (v *Hardlinks) HandleChange(kind ChangeKind, p string, fi os.FileInfo, err
 
 	stat, ok := fi.Sys().(*types.Stat)
 	if !ok {
-		return errors.Errorf("invalid change without stat info: %s", p)
+		return errors.WithStack(&os.PathError{Path: p, Err: syscall.EBADMSG, Op: "change without stat info"})
 	}
 
 	if fi.IsDir() || fi.Mode()&os.ModeSymlink != 0 {

vendor/github.com/tonistiigi/fsutil/receive.go

@@ -20,7 +20,7 @@ type ReceiveOpt struct {
 }
 
 func Receive(ctx context.Context, conn Stream, dest string, opt ReceiveOpt) error {
-	ctx, cancel := context.WithCancel(context.Background())
+	ctx, cancel := context.WithCancel(ctx)
 	defer cancel()
 
 	r := &receiver{
@@ -105,7 +105,6 @@ func (w *dynamicWalker) fill(ctx context.Context, pathC chan<- *currentPath) err
 			return ctx.Err()
 		}
 	}
-	return nil
 }
 
 func (r *receiver) run(ctx context.Context) error {
@@ -131,7 +130,7 @@ func (r *receiver) run(ctx context.Context) error {
 		}()
 		destWalker := emptyWalker
 		if !r.merge {
-			destWalker = GetWalkerFn(r.dest)
+			destWalker = getWalkerFn(r.dest)
 		}
 		err := doubleWalkDiff(ctx, dw.HandleChange, destWalker, w.fill, r.filter)
 		if err != nil {

vendor/github.com/tonistiigi/fsutil/send.go

@@ -5,6 +5,7 @@ import (
 	"io"
 	"os"
 	"sync"
+	"syscall"
 
 	"github.com/pkg/errors"
 	"github.com/tonistiigi/fsutil/types"
@@ -13,7 +14,8 @@ import (
 
 var bufPool = sync.Pool{
 	New: func() interface{} {
-		return make([]byte, 32*1<<10)
+		buf := make([]byte, 32*1<<10)
+		return &buf
 	},
 }
 
@@ -131,9 +133,9 @@ func (s *sender) sendFile(h *sendHandle) error {
 	f, err := s.fs.Open(h.path)
 	if err == nil {
 		defer f.Close()
-		buf := bufPool.Get().([]byte)
+		buf := bufPool.Get().(*[]byte)
 		defer bufPool.Put(buf)
-		if _, err := io.CopyBuffer(&fileSender{sender: s, id: h.id}, f, buf); err != nil {
+		if _, err := io.CopyBuffer(&fileSender{sender: s, id: h.id}, f, *buf); err != nil {
 			return err
 		}
 	}
@@ -148,7 +150,7 @@ func (s *sender) walk(ctx context.Context) error {
 		}
 		stat, ok := fi.Sys().(*types.Stat)
 		if !ok {
-			return errors.Wrapf(err, "invalid fileinfo without stat info: %s", path)
+			return errors.WithStack(&os.PathError{Path: path, Err: syscall.EBADMSG, Op: "fileinfo without stat info"})
 		}
 
 		p := &types.Packet{

vendor/github.com/tonistiigi/fsutil/stat.go

@@ -31,13 +31,13 @@ func mkstat(path, relpath string, fi os.FileInfo, inodemap map[uint64]string) (*
 		if fi.Mode()&os.ModeSymlink != 0 {
 			link, err := os.Readlink(path)
 			if err != nil {
-				return nil, errors.Wrapf(err, "failed to readlink %s", path)
+				return nil, errors.WithStack(err)
 			}
 			stat.Linkname = link
 		}
 	}
 	if err := loadXattr(path, stat); err != nil {
-		return nil, errors.Wrapf(err, "failed to xattr %s", relpath)
+		return nil, err
 	}
 
 	if runtime.GOOS == "windows" {
@@ -58,7 +58,7 @@ func mkstat(path, relpath string, fi os.FileInfo, inodemap map[uint64]string) (*
 func Stat(path string) (*types.Stat, error) {
 	fi, err := os.Lstat(path)
 	if err != nil {
-		return nil, errors.Wrap(err, "os stat")
+		return nil, errors.WithStack(err)
 	}
 	return mkstat(path, filepath.Base(path), fi, nil)
 }

vendor/github.com/tonistiigi/fsutil/tarwriter.go

@@ -7,6 +7,7 @@ import (
 	"os"
 	"path/filepath"
 	"strings"
+	"syscall"
 
 	"github.com/pkg/errors"
 	"github.com/tonistiigi/fsutil/types"
@@ -15,9 +16,12 @@ import (
 func WriteTar(ctx context.Context, fs FS, w io.Writer) error {
 	tw := tar.NewWriter(w)
 	err := fs.Walk(ctx, func(path string, fi os.FileInfo, err error) error {
+		if err != nil && !errors.Is(err, os.ErrNotExist) {
+			return err
+		}
 		stat, ok := fi.Sys().(*types.Stat)
 		if !ok {
-			return errors.Wrapf(err, "invalid fileinfo without stat info: %s", path)
+			return errors.WithStack(&os.PathError{Path: path, Err: syscall.EBADMSG, Op: "fileinfo without stat info"})
 		}
 		hdr, err := tar.FileInfoHeader(fi, stat.Linkname)
 		if err != nil {
@@ -37,7 +41,7 @@ func WriteTar(ctx context.Context, fs FS, w io.Writer) error {
 		hdr.Linkname = stat.Linkname
 		if hdr.Linkname != "" {
 			hdr.Size = 0
-			if fi.Mode() & os.ModeSymlink != 0 {
+			if fi.Mode()&os.ModeSymlink != 0 {
 				hdr.Typeflag = tar.TypeSymlink
 			} else {
 				hdr.Typeflag = tar.TypeLink
@@ -52,7 +56,7 @@ func WriteTar(ctx context.Context, fs FS, w io.Writer) error {
 		}
 
 		if err := tw.WriteHeader(hdr); err != nil {
-			return errors.Wrap(err, "failed to write file header")
+			return errors.Wrapf(err, "failed to write file header %s", name)
 		}
 
 		if hdr.Typeflag == tar.TypeReg && hdr.Size > 0 && hdr.Linkname == "" {
@@ -61,10 +65,10 @@ func WriteTar(ctx context.Context, fs FS, w io.Writer) error {
 				return err
 			}
 			if _, err := io.Copy(tw, rc); err != nil {
-				return err
+				return errors.WithStack(err)
 			}
 			if err := rc.Close(); err != nil {
-				return err
+				return errors.WithStack(err)
 			}
 		}
 		return nil

vendor/github.com/tonistiigi/fsutil/validator.go

@@ -6,6 +6,7 @@ import (
 	"runtime"
 	"sort"
 	"strings"
+	"syscall"
 
 	"github.com/pkg/errors"
 )
@@ -31,10 +32,10 @@ func (v *Validator) HandleChange(kind ChangeKind, p string, fi os.FileInfo, err
 		p = strings.Replace(p, "\\", "", -1)
 	}
 	if p != path.Clean(p) {
-		return errors.Errorf("invalid unclean path %s", p)
+		return errors.WithStack(&os.PathError{Path: p, Err: syscall.EINVAL, Op: "unclean path"})
 	}
 	if path.IsAbs(p) {
-		return errors.Errorf("abolute path %s not allowed", p)
+		return errors.WithStack(&os.PathError{Path: p, Err: syscall.EINVAL, Op: "absolute path"})
 	}
 	dir := path.Dir(p)
 	base := path.Base(p)
@@ -42,7 +43,7 @@ func (v *Validator) HandleChange(kind ChangeKind, p string, fi os.FileInfo, err
 		dir = ""
 	}
 	if dir == ".." || strings.HasPrefix(p, "../") {
-		return errors.Errorf("invalid path: %s", p)
+		return errors.WithStack(&os.PathError{Path: p, Err: syscall.EINVAL, Op: "escape check"})
 	}
 
 	// find a parent dir from saved records

vendor/github.com/tonistiigi/fsutil/walker.go

@@ -25,21 +25,21 @@ type WalkOpt struct {
 func Walk(ctx context.Context, p string, opt *WalkOpt, fn filepath.WalkFunc) error {
 	root, err := filepath.EvalSymlinks(p)
 	if err != nil {
-		return errors.Wrapf(err, "failed to resolve %s", root)
+		return errors.WithStack(&os.PathError{Op: "resolve", Path: root, Err: err})
 	}
 	fi, err := os.Stat(root)
 	if err != nil {
-		return errors.Wrapf(err, "failed to stat: %s", root)
+		return errors.WithStack(err)
 	}
 	if !fi.IsDir() {
-		return errors.Errorf("%s is not a directory", root)
+		return errors.WithStack(&os.PathError{Op: "walk", Path: root, Err: syscall.ENOTDIR})
 	}
 
 	var pm *fileutils.PatternMatcher
 	if opt != nil && opt.ExcludePatterns != nil {
 		pm, err = fileutils.NewPatternMatcher(opt.ExcludePatterns)
 		if err != nil {
-			return errors.Wrapf(err, "invalid excludepaths %s", opt.ExcludePatterns)
+			return errors.Wrapf(err, "invalid excludepatterns: %s", opt.ExcludePatterns)
 		}
 	}
 
@@ -65,17 +65,15 @@ func Walk(ctx context.Context, p string, opt *WalkOpt, fn filepath.WalkFunc) err
 
 	seenFiles := make(map[uint64]string)
 	return filepath.Walk(root, func(path string, fi os.FileInfo, err error) (retErr error) {
-		if err != nil {
-			if os.IsNotExist(err) {
-				return filepath.SkipDir
-			}
-			return err
-		}
 		defer func() {
 			if retErr != nil && isNotExist(retErr) {
 				retErr = filepath.SkipDir
 			}
 		}()
+		if err != nil {
+			return err
+		}
+
 		origpath := path
 		path, err = filepath.Rel(root, path)
 		if err != nil {