Bump deps

```
* use go 1.17 semantics in go.mod
* pin tonistiigi/fsutil dep to match docker/docker's dep
go get -u ./...
go mod vendor
```

vendor/github.com/otiai10/copy/.gitignore

@@ -1,3 +1,5 @@
-testdata.copy
+test/data.copy
 coverage.txt
 vendor
+.vagrant
+.idea/

vendor/github.com/otiai10/copy/.travis.yml

@@ -1,11 +0,0 @@
-language: go
-go:
-    - 1.9
-    - tip
-before_script:
-    - go get -t ./...
-script:
-    - go test ./... -v
-    - go test -race -coverprofile=coverage.txt -covermode=atomic
-after_success:
-    - bash <(curl -s https://codecov.io/bash)

vendor/github.com/otiai10/copy/README.md

@@ -1,14 +1,77 @@
 # copy
 
-[![Build Status](https://travis-ci.org/otiai10/copy.svg?branch=master)](https://travis-ci.org/otiai10/copy)
-[![codecov](https://codecov.io/gh/otiai10/copy/branch/master/graph/badge.svg)](https://codecov.io/gh/otiai10/copy)
-[![GoDoc](https://godoc.org/github.com/otiai10/copy?status.svg)](https://godoc.org/github.com/otiai10/copy)
+[![Go Reference](https://pkg.go.dev/badge/github.com/otiai10/copy.svg)](https://pkg.go.dev/github.com/otiai10/copy)
+[![Actions Status](https://github.com/otiai10/copy/workflows/Go/badge.svg)](https://github.com/otiai10/copy/actions)
+[![codecov](https://codecov.io/gh/otiai10/copy/branch/main/graph/badge.svg)](https://codecov.io/gh/otiai10/copy)
+[![License: MIT](https://img.shields.io/badge/License-MIT-green.svg)](https://github.com/otiai10/copy/blob/main/LICENSE)
+[![FOSSA Status](https://app.fossa.com/api/projects/git%2Bgithub.com%2Fotiai10%2Fcopy.svg?type=shield)](https://app.fossa.com/projects/git%2Bgithub.com%2Fotiai10%2Fcopy?ref=badge_shield)
+[![CodeQL](https://github.com/otiai10/copy/actions/workflows/codeql-analysis.yml/badge.svg)](https://github.com/otiai10/copy/actions/workflows/codeql-analysis.yml)
 [![Go Report Card](https://goreportcard.com/badge/github.com/otiai10/copy)](https://goreportcard.com/report/github.com/otiai10/copy)
+[![GitHub tag (latest SemVer)](https://img.shields.io/github/v/tag/otiai10/copy?sort=semver)](https://pkg.go.dev/github.com/otiai10/copy)
+[![Docker Test](https://github.com/otiai10/copy/actions/workflows/docker-test.yml/badge.svg)](https://github.com/otiai10/copy/actions/workflows/docker-test.yml)
+[![Vagrant Test](https://github.com/otiai10/copy/actions/workflows/vagrant-test.yml/badge.svg)](https://github.com/otiai10/copy/actions/workflows/vagrant-test.yml)
 
 `copy` copies directories recursively.
 
-Example:
+# Example Usage
 
 ```go
 err := Copy("your/directory", "your/directory.copy")
 ```
+
+# Advanced Usage
+
+```go
+// Options specifies optional actions on copying.
+type Options struct {
+
+	// OnSymlink can specify what to do on symlink
+	OnSymlink func(src string) SymlinkAction
+
+	// OnDirExists can specify what to do when there is a directory already existing in destination.
+	OnDirExists func(src, dest string) DirExistsAction
+
+	// Skip can specify which files should be skipped
+	Skip func(src string) (bool, error)
+
+	// AddPermission to every entry,
+	// NO MORE THAN 0777
+	AddPermission os.FileMode
+
+	// Sync file after copy.
+	// Useful in case when file must be on the disk
+	// (in case crash happens, for example),
+	// at the expense of some performance penalty
+	Sync bool
+
+	// Preserve the atime and the mtime of the entries
+	// On linux we can preserve only up to 1 millisecond accuracy
+	PreserveTimes bool
+
+	// Preserve the uid and the gid of all entries.
+	PreserveOwner bool
+
+	// The byte size of the buffer to use for copying files.
+	// If zero, the internal default buffer of 32KB is used.
+	// See https://golang.org/pkg/io/#CopyBuffer for more information.
+	CopyBufferSize uint
+}
+```
+
+```go
+// For example...
+opt := Options{
+	Skip: func(src string) (bool, error) {
+		return strings.HasSuffix(src, ".git"), nil
+	},
+}
+err := Copy("your/directory", "your/directory.copy", opt)
+```
+
+# Issues
+
+- https://github.com/otiai10/copy/issues
+
+
+## License
+[![FOSSA Status](https://app.fossa.com/api/projects/git%2Bgithub.com%2Fotiai10%2Fcopy.svg?type=large)](https://app.fossa.com/projects/git%2Bgithub.com%2Fotiai10%2Fcopy?ref=badge_large)

vendor/github.com/otiai10/copy/copy.go

@@ -5,6 +5,7 @@ import (
 	"io/ioutil"
 	"os"
 	"path/filepath"
+	"time"
 )
 
 const (
@@ -14,93 +15,229 @@ const (
 	tmpPermissionForDirectory = os.FileMode(0755)
 )
 
-// Copy copies src to dest, doesn't matter if src is a directory or a file
-func Copy(src, dest string) error {
+type timespec struct {
+	Mtime time.Time
+	Atime time.Time
+	Ctime time.Time
+}
+
+// Copy copies src to dest, doesn't matter if src is a directory or a file.
+func Copy(src, dest string, opt ...Options) error {
 	info, err := os.Lstat(src)
 	if err != nil {
 		return err
 	}
-	return copy(src, dest, info)
+	return switchboard(src, dest, info, assure(src, dest, opt...))
 }
 
-// copy dispatches copy-funcs according to the mode.
+// switchboard switches proper copy functions regarding file type, etc...
+// If there would be anything else here, add a case to this switchboard.
+func switchboard(src, dest string, info os.FileInfo, opt Options) (err error) {
+	switch {
+	case info.Mode()&os.ModeSymlink != 0:
+		err = onsymlink(src, dest, opt)
+	case info.IsDir():
+		err = dcopy(src, dest, info, opt)
+	case info.Mode()&os.ModeNamedPipe != 0:
+		err = pcopy(dest, info)
+	default:
+		err = fcopy(src, dest, info, opt)
+	}
+
+	return err
+}
+
+// copyNextOrSkip decide if this src should be copied or not.
 // Because this "copy" could be called recursively,
 // "info" MUST be given here, NOT nil.
-func copy(src, dest string, info os.FileInfo) error {
-	if info.Mode()&os.ModeSymlink != 0 {
-		return lcopy(src, dest, info)
+func copyNextOrSkip(src, dest string, info os.FileInfo, opt Options) error {
+	skip, err := opt.Skip(src)
+	if err != nil {
+		return err
 	}
-	if info.IsDir() {
-		return dcopy(src, dest, info)
+	if skip {
+		return nil
 	}
-	return fcopy(src, dest, info)
+	return switchboard(src, dest, info, opt)
 }
 
 // fcopy is for just a file,
 // with considering existence of parent directory
 // and file permission.
-func fcopy(src, dest string, info os.FileInfo) error {
+func fcopy(src, dest string, info os.FileInfo, opt Options) (err error) {
 
-	if err := os.MkdirAll(filepath.Dir(dest), os.ModePerm); err != nil {
-		return err
+	if err = os.MkdirAll(filepath.Dir(dest), os.ModePerm); err != nil {
+		return
 	}
 
 	f, err := os.Create(dest)
 	if err != nil {
-		return err
+		return
 	}
-	defer f.Close()
+	defer fclose(f, &err)
 
-	if err = os.Chmod(f.Name(), info.Mode()); err != nil {
-		return err
+	if err = os.Chmod(f.Name(), info.Mode()|opt.AddPermission); err != nil {
+		return
 	}
 
 	s, err := os.Open(src)
 	if err != nil {
+		return
+	}
+	defer fclose(s, &err)
+
+	var buf []byte = nil
+	var w io.Writer = f
+	// var r io.Reader = s
+	if opt.CopyBufferSize != 0 {
+		buf = make([]byte, opt.CopyBufferSize)
+		// Disable using `ReadFrom` by io.CopyBuffer.
+		// See https://github.com/otiai10/copy/pull/60#discussion_r627320811 for more details.
+		w = struct{ io.Writer }{f}
+		// r = struct{ io.Reader }{s}
+	}
+	if _, err = io.CopyBuffer(w, s, buf); err != nil {
 		return err
 	}
-	defer s.Close()
 
-	_, err = io.Copy(f, s)
-	return err
+	if opt.Sync {
+		err = f.Sync()
+	}
+
+	if opt.PreserveOwner {
+		if err := preserveOwner(src, dest, info); err != nil {
+			return err
+		}
+	}
+	if opt.PreserveTimes {
+		if err := preserveTimes(info, dest); err != nil {
+			return err
+		}
+	}
+
+	return
 }
 
 // dcopy is for a directory,
 // with scanning contents inside the directory
 // and pass everything to "copy" recursively.
-func dcopy(srcdir, destdir string, info os.FileInfo) error {
+func dcopy(srcdir, destdir string, info os.FileInfo, opt Options) (err error) {
+
+	_, err = os.Stat(destdir)
+	if err == nil && opt.OnDirExists != nil && destdir != opt.intent.dest {
+		switch opt.OnDirExists(srcdir, destdir) {
+		case Replace:
+			if err := os.RemoveAll(destdir); err != nil {
+				return err
+			}
+		case Untouchable:
+			return nil
+		} // case "Merge" is default behaviour. Go through.
+	} else if err != nil && !os.IsNotExist(err) {
+		return err // Unwelcome error type...!
+	}
 
 	originalMode := info.Mode()
 
 	// Make dest dir with 0755 so that everything writable.
-	if err := os.MkdirAll(destdir, tmpPermissionForDirectory); err != nil {
-		return err
+	if err = os.MkdirAll(destdir, tmpPermissionForDirectory); err != nil {
+		return
 	}
 	// Recover dir mode with original one.
-	defer os.Chmod(destdir, originalMode)
+	defer chmod(destdir, originalMode|opt.AddPermission, &err)
 
 	contents, err := ioutil.ReadDir(srcdir)
 	if err != nil {
-		return err
+		return
 	}
 
 	for _, content := range contents {
 		cs, cd := filepath.Join(srcdir, content.Name()), filepath.Join(destdir, content.Name())
-		if err := copy(cs, cd, content); err != nil {
+
+		if err = copyNextOrSkip(cs, cd, content, opt); err != nil {
 			// If any error, exit immediately
+			return
+		}
+	}
+
+	if opt.PreserveTimes {
+		if err := preserveTimes(info, destdir); err != nil {
 			return err
 		}
 	}
 
-	return nil
+	if opt.PreserveOwner {
+		if err := preserveOwner(srcdir, destdir, info); err != nil {
+			return err
+		}
+	}
+
+	return
+}
+
+func onsymlink(src, dest string, opt Options) error {
+	switch opt.OnSymlink(src) {
+	case Shallow:
+		return lcopy(src, dest)
+	case Deep:
+		orig, err := os.Readlink(src)
+		if err != nil {
+			return err
+		}
+		info, err := os.Lstat(orig)
+		if err != nil {
+			return err
+		}
+		return copyNextOrSkip(orig, dest, info, opt)
+	case Skip:
+		fallthrough
+	default:
+		return nil // do nothing
+	}
 }
 
 // lcopy is for a symlink,
 // with just creating a new symlink by replicating src symlink.
-func lcopy(src, dest string, info os.FileInfo) error {
+func lcopy(src, dest string) error {
 	src, err := os.Readlink(src)
 	if err != nil {
 		return err
 	}
 	return os.Symlink(src, dest)
 }
+
+// fclose ANYHOW closes file,
+// with asiging error raised during Close,
+// BUT respecting the error already reported.
+func fclose(f *os.File, reported *error) {
+	if err := f.Close(); *reported == nil {
+		*reported = err
+	}
+}
+
+// chmod ANYHOW changes file mode,
+// with asiging error raised during Chmod,
+// BUT respecting the error already reported.
+func chmod(dir string, mode os.FileMode, reported *error) {
+	if err := os.Chmod(dir, mode); *reported == nil {
+		*reported = err
+	}
+}
+
+// assure Options struct, should be called only once.
+// All optional values MUST NOT BE nil/zero after assured.
+func assure(src, dest string, opts ...Options) Options {
+	defopt := getDefaultOptions(src, dest)
+	if len(opts) == 0 {
+		return defopt
+	}
+	if opts[0].OnSymlink == nil {
+		opts[0].OnSymlink = defopt.OnSymlink
+	}
+	if opts[0].Skip == nil {
+		opts[0].Skip = defopt.Skip
+	}
+	opts[0].intent.src = defopt.intent.src
+	opts[0].intent.dest = defopt.intent.dest
+	return opts[0]
+}

vendor/github.com/otiai10/copy/copy_namedpipes.go

@@ -0,0 +1,17 @@
+// +build !windows,!plan9,!netbsd,!aix,!illumos,!solaris
+
+package copy
+
+import (
+	"os"
+	"path/filepath"
+	"syscall"
+)
+
+// pcopy is for just named pipes
+func pcopy(dest string, info os.FileInfo) error {
+	if err := os.MkdirAll(filepath.Dir(dest), os.ModePerm); err != nil {
+		return err
+	}
+	return syscall.Mkfifo(dest, uint32(info.Mode()))
+}

vendor/github.com/otiai10/copy/copy_namedpipes_x.go

@@ -0,0 +1,14 @@
+// +build windows plan9 netbsd aix illumos solaris
+
+package copy
+
+import (
+	"os"
+)
+
+// TODO: check plan9 netbsd aix illumos solaris in future
+
+// pcopy is for just named pipes. Windows doesn't support them
+func pcopy(dest string, info os.FileInfo) error {
+	return nil
+}

vendor/github.com/otiai10/copy/fileinfo.go

@@ -0,0 +1,12 @@
+package copy
+
+// This is a cloned definition of os.FileInfo (go1.15) or fs.FileInfo (go1.16~)
+// A FileInfo describes a file and is returned by Stat.
+type fileInfo interface {
+	// Name() string       // base name of the file
+	// Size() int64        // length in bytes for regular files; system-dependent for others
+	// Mode() FileMode     // file mode bits
+	// ModTime() time.Time // modification time
+	// IsDir() bool        // abbreviation for Mode().IsDir()
+	Sys() interface{} // underlying data source (can return nil)
+}

vendor/github.com/otiai10/copy/go.mod

@@ -1,5 +0,0 @@
-module github.com/otiai10/copy
-
-go 1.12
-
-require github.com/otiai10/mint v1.3.0

vendor/github.com/otiai10/copy/go.sum

@@ -1,3 +0,0 @@
-github.com/otiai10/curr v0.0.0-20150429015615-9b4961190c95/go.mod h1:9qAhocn7zKJG+0mI8eUu6xqkFDYS2kb2saOteoSB3cE=
-github.com/otiai10/mint v1.3.0 h1:Ady6MKVezQwHBkGzLFbrsywyp09Ah7rkmfjV3Bcr5uc=
-github.com/otiai10/mint v1.3.0/go.mod h1:F5AjcsTsWUqX+Na9fpHb52P8pcRX2CI6A3ctIT91xUo=

vendor/github.com/otiai10/copy/options.go

@@ -0,0 +1,89 @@
+package copy
+
+import "os"
+
+// Options specifies optional actions on copying.
+type Options struct {
+
+	// OnSymlink can specify what to do on symlink
+	OnSymlink func(src string) SymlinkAction
+
+	// OnDirExists can specify what to do when there is a directory already existing in destination.
+	OnDirExists func(src, dest string) DirExistsAction
+
+	// Skip can specify which files should be skipped
+	Skip func(src string) (bool, error)
+
+	// AddPermission to every entities,
+	// NO MORE THAN 0777
+	AddPermission os.FileMode
+
+	// Sync file after copy.
+	// Useful in case when file must be on the disk
+	// (in case crash happens, for example),
+	// at the expense of some performance penalty
+	Sync bool
+
+	// Preserve the atime and the mtime of the entries.
+	// On linux we can preserve only up to 1 millisecond accuracy.
+	PreserveTimes bool
+
+	// Preserve the uid and the gid of all entries.
+	PreserveOwner bool
+
+	// The byte size of the buffer to use for copying files.
+	// If zero, the internal default buffer of 32KB is used.
+	// See https://golang.org/pkg/io/#CopyBuffer for more information.
+	CopyBufferSize uint
+
+	intent struct {
+		src  string
+		dest string
+	}
+}
+
+// SymlinkAction represents what to do on symlink.
+type SymlinkAction int
+
+const (
+	// Deep creates hard-copy of contents.
+	Deep SymlinkAction = iota
+	// Shallow creates new symlink to the dest of symlink.
+	Shallow
+	// Skip does nothing with symlink.
+	Skip
+)
+
+// DirExistsAction represents what to do on dest dir.
+type DirExistsAction int
+
+const (
+	// Merge preserves or overwrites existing files under the dir (default behavior).
+	Merge DirExistsAction = iota
+	// Replace deletes all contents under the dir and copy src files.
+	Replace
+	// Untouchable does nothing for the dir, and leaves it as it is.
+	Untouchable
+)
+
+// getDefaultOptions provides default options,
+// which would be modified by usage-side.
+func getDefaultOptions(src, dest string) Options {
+	return Options{
+		OnSymlink: func(string) SymlinkAction {
+			return Shallow // Do shallow copy
+		},
+		OnDirExists: nil, // Default behavior is "Merge".
+		Skip: func(string) (bool, error) {
+			return false, nil // Don't skip
+		},
+		AddPermission:  0,     // Add nothing
+		Sync:           false, // Do not sync
+		PreserveTimes:  false, // Do not preserve the modification time
+		CopyBufferSize: 0,     // Do not specify, use default bufsize (32*1024)
+		intent: struct {
+			src  string
+			dest string
+		}{src, dest},
+	}
+}

vendor/github.com/otiai10/copy/preserve_owner.go

@@ -0,0 +1,22 @@
+//+build !windows
+
+package copy
+
+import (
+	"os"
+	"syscall"
+)
+
+func preserveOwner(src, dest string, info fileInfo) (err error) {
+	if info == nil {
+		if info, err = os.Stat(src); err != nil {
+			return err
+		}
+	}
+	if stat, ok := info.Sys().(*syscall.Stat_t); ok {
+		if err := os.Chown(dest, int(stat.Uid), int(stat.Gid)); err != nil {
+			return err
+		}
+	}
+	return nil
+}

vendor/github.com/otiai10/copy/preserve_owner_windows.go

@@ -0,0 +1,7 @@
+//+build windows
+
+package copy
+
+func preserveOwner(src, dest string, info fileInfo) (err error) {
+	return nil
+}

vendor/github.com/otiai10/copy/preserve_times.go

@@ -0,0 +1,11 @@
+package copy
+
+import "os"
+
+func preserveTimes(srcinfo os.FileInfo, dest string) error {
+	spec := getTimeSpec(srcinfo)
+	if err := os.Chtimes(dest, spec.Atime, spec.Mtime); err != nil {
+		return err
+	}
+	return nil
+}

vendor/github.com/otiai10/copy/stat_times.go

@@ -0,0 +1,21 @@
+// +build !windows,!darwin,!freebsd,!plan9,!netbsd
+
+// TODO: add more runtimes
+
+package copy
+
+import (
+	"os"
+	"syscall"
+	"time"
+)
+
+func getTimeSpec(info os.FileInfo) timespec {
+	stat := info.Sys().(*syscall.Stat_t)
+	times := timespec{
+		Mtime: info.ModTime(),
+		Atime: time.Unix(int64(stat.Atim.Sec), int64(stat.Atim.Nsec)),
+		Ctime: time.Unix(int64(stat.Ctim.Sec), int64(stat.Ctim.Nsec)),
+	}
+	return times
+}

vendor/github.com/otiai10/copy/stat_times_darwin.go

@@ -0,0 +1,19 @@
+// +build darwin
+
+package copy
+
+import (
+	"os"
+	"syscall"
+	"time"
+)
+
+func getTimeSpec(info os.FileInfo) timespec {
+	stat := info.Sys().(*syscall.Stat_t)
+	times := timespec{
+		Mtime: info.ModTime(),
+		Atime: time.Unix(stat.Atimespec.Sec, stat.Atimespec.Nsec),
+		Ctime: time.Unix(stat.Ctimespec.Sec, stat.Ctimespec.Nsec),
+	}
+	return times
+}

vendor/github.com/otiai10/copy/stat_times_freebsd.go

@@ -0,0 +1,19 @@
+// +build freebsd
+
+package copy
+
+import (
+	"os"
+	"syscall"
+	"time"
+)
+
+func getTimeSpec(info os.FileInfo) timespec {
+	stat := info.Sys().(*syscall.Stat_t)
+	times := timespec{
+		Mtime: info.ModTime(),
+		Atime: time.Unix(int64(stat.Atimespec.Sec), int64(stat.Atimespec.Nsec)),
+		Ctime: time.Unix(int64(stat.Ctimespec.Sec), int64(stat.Ctimespec.Nsec)),
+	}
+	return times
+}

vendor/github.com/otiai10/copy/stat_times_windows.go

@@ -0,0 +1,18 @@
+// +build windows
+
+package copy
+
+import (
+	"os"
+	"syscall"
+	"time"
+)
+
+func getTimeSpec(info os.FileInfo) timespec {
+	stat := info.Sys().(*syscall.Win32FileAttributeData)
+	return timespec{
+		Mtime: time.Unix(0, stat.LastWriteTime.Nanoseconds()),
+		Atime: time.Unix(0, stat.LastAccessTime.Nanoseconds()),
+		Ctime: time.Unix(0, stat.CreationTime.Nanoseconds()),
+	}
+}

vendor/github.com/otiai10/copy/stat_times_x.go

@@ -0,0 +1,17 @@
+// +build plan9 netbsd
+
+package copy
+
+import (
+	"os"
+)
+
+// TODO: check plan9 netbsd in future
+func getTimeSpec(info os.FileInfo) timespec {
+	times := timespec{
+		Mtime: info.ModTime(),
+		Atime: info.ModTime(),
+		Ctime: info.ModTime(),
+	}
+	return times
+}

vendor/github.com/otiai10/copy/test_setup.go

@@ -0,0 +1,17 @@
+// +build !windows,!plan9,!netbsd,!aix,!illumos,!solaris
+
+package copy
+
+import (
+	"os"
+	"syscall"
+	"testing"
+)
+
+func setup(m *testing.M) {
+	os.MkdirAll("test/data.copy", os.ModePerm)
+	os.Symlink("test/data/case01", "test/data/case03/case01")
+	os.Chmod("test/data/case07/dir_0555", 0555)
+	os.Chmod("test/data/case07/file_0444", 0444)
+	syscall.Mkfifo("test/data/case11/foo/bar", 0555)
+}

vendor/github.com/otiai10/copy/test_setup_x.go

@@ -0,0 +1,15 @@
+// +build windows plan9 netbsd aix illumos solaris
+
+package copy
+
+import (
+	"os"
+	"testing"
+)
+
+func setup(m *testing.M) {
+	os.MkdirAll("test/data.copy", os.ModePerm)
+	os.Symlink("test/data/case01", "test/data/case03/case01")
+	os.Chmod("test/data/case07/dir_0555", 0555)
+	os.Chmod("test/data/case07/file_0444", 0444)
+}