Don't use github.com/google/renameio on Windows

lib/chezmoi/fsmutator_windows.go

@@ -4,77 +4,9 @@ package chezmoi
 
 import (
 	"os"
-	"path/filepath"
-	"syscall"
-
-	"github.com/google/renameio"
-	"golang.org/x/sys/windows"
-
-	vfs "github.com/twpayne/go-vfs"
 )
 
 // WriteFile implements Mutator.WriteFile.
 func (a *FSMutator) WriteFile(name string, data []byte, perm os.FileMode, currData []byte) error {
-	// Special case: if writing to the real filesystem, use github.com/google/renameio
-	if a.FS == vfs.OSFS {
-		dir := filepath.Dir(name)
-		dev, ok := a.devCache[dir]
-		if !ok {
-			volumeID, err := getVolumeSerialNumber(name)
-			if err != nil {
-				return err
-			}
-
-			dev = volumeID
-			a.devCache[dir] = dev
-		}
-		tempDir, ok := a.tempDirCache[dev]
-		if !ok {
-			tempDir = renameio.TempDir(dir)
-			a.tempDirCache[dev] = tempDir
-		}
-		t, err := renameio.TempFile(tempDir, name)
-		if err != nil {
-			return err
-		}
-		defer func() {
-			_ = t.Cleanup()
-		}()
-		if err := a.Chmod(t.Name(), perm); err != nil {
-			return err
-		}
-		if _, err := t.Write(data); err != nil {
-			return err
-		}
-		return t.CloseAtomicallyReplace()
-	}
 	return a.FS.WriteFile(name, data, perm)
 }
-
-func getVolumeSerialNumber(Path string) (uint, error) {
-	fp, err := filepath.Abs(Path)
-	if err != nil {
-		return 0, err
-	}
-
-	// Input rootpath
-	rootPathName := filepath.VolumeName(fp) + "\\"
-
-	// Output volume info
-	var serialNumber uint32
-
-	err = windows.GetVolumeInformation(
-		syscall.StringToUTF16Ptr(rootPathName),
-		nil, 0,
-		&serialNumber,
-		nil,    // maximum component length
-		nil,    // filesystem flags
-		nil, 0, // filesystem name buffer
-	)
-
-	if err != windows.Errno(0) {
-		return 0, err
-	}
-
-	return uint(serialNumber), nil
-}