vendor github.com/tonistiigi/fsutil 0834f99b7b85462efb69b4f571a4fa3ca7da5ac9

https://github.com/tonistiigi/fsutil/compare/c3ed55f3b48161fd3dc42c17ba09e12ac52d57dc...0834f99b7b85462efb69b4f571a4fa3ca7da5ac9

- copy: use Clonefileat from golang.org/x/sys/unix on macOS
- go.mod: update opencontainers/go-digest v1.0.0
- Add github action CI
- github: test go1.15

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

vendor.conf

@@ -34,7 +34,7 @@ golang.org/x/sync                                   cd5d95a43a6e21273425c7ae415d
 
 # buildkit
 github.com/moby/buildkit                            6861f17f15364de0fe1fd1e6e8da07598a485123
-github.com/tonistiigi/fsutil                        c3ed55f3b48161fd3dc42c17ba09e12ac52d57dc
+github.com/tonistiigi/fsutil                        0834f99b7b85462efb69b4f571a4fa3ca7da5ac9
 github.com/tonistiigi/units                         6950e57a87eaf136bbe44ef2ec8e75b9e3569de2
 github.com/grpc-ecosystem/grpc-opentracing          8e809c8a86450a29b90dcc9efbf062d0fe6d9746
 github.com/opentracing/opentracing-go               d34af3eaa63c4d08ab54863a4bdd0daa45212e12 # v1.2.0

vendor/github.com/tonistiigi/fsutil/copy/copy_darwin.go

@@ -5,21 +5,13 @@ package fs
 import (
 	"io"
 	"os"
-	"syscall"
-	"unsafe"
 
 	"github.com/pkg/errors"
 	"golang.org/x/sys/unix"
 )
 
-// <sys/clonefile.h
-// int clonefileat(int, const char *, int, const char *, uint32_t) __OSX_AVAILABLE(10.12) __IOS_AVAILABLE(10.0) __TVOS_AVAILABLE(10.0) __WATCHOS_AVAILABLE(3.0);
-
-const CLONE_NOFOLLOW = 0x0001    /* Don't follow symbolic links */
-const CLONE_NOOWNERCOPY = 0x0002 /* Don't copy ownership information from */
-
 func copyFile(source, target string) error {
-	if err := clonefile(source, target); err != nil {
+	if err := unix.Clonefileat(unix.AT_FDCWD, source, unix.AT_FDCWD, target, unix.CLONE_NOFOLLOW); err != nil {
 		if err != unix.EINVAL {
 			return err
 		}
@@ -48,37 +40,3 @@ func copyFileContent(dst, src *os.File) error {
 
 	return err
 }
-
-// errnoErr returns common boxed Errno values, to prevent
-// allocations at runtime.
-func errnoErr(e syscall.Errno) error {
-	switch e {
-	case 0:
-		return nil
-	case unix.EAGAIN:
-		return syscall.EAGAIN
-	case unix.EINVAL:
-		return syscall.EINVAL
-	case unix.ENOENT:
-		return syscall.ENOENT
-	}
-	return e
-}
-
-func clonefile(src, dst string) (err error) {
-	var _p0, _p1 *byte
-	_p0, err = unix.BytePtrFromString(src)
-	if err != nil {
-		return
-	}
-	_p1, err = unix.BytePtrFromString(dst)
-	if err != nil {
-		return
-	}
-	fdcwd := unix.AT_FDCWD
-	_, _, e1 := unix.Syscall6(unix.SYS_CLONEFILEAT, uintptr(fdcwd), uintptr(unsafe.Pointer(_p0)), uintptr(fdcwd), uintptr(unsafe.Pointer(_p1)), uintptr(CLONE_NOFOLLOW), 0)
-	if e1 != 0 {
-		err = errnoErr(e1)
-	}
-	return
-}

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

@@ -9,12 +9,12 @@ require (
 	github.com/gogo/protobuf v1.3.1
 	github.com/moby/sys/mount v0.1.0 // indirect
 	github.com/moby/sys/mountinfo v0.1.3 // 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
+	golang.org/x/sys v0.0.0-20200917073148-efd3b9a0ff20
 	gotest.tools/v3 v3.0.2 // indirect
 )