feat: add file visibility checks for windows (#39)

* feat: add file visibility checks for windows

* fix: fix build error

* refactor: optimize thie ishidden

---------

Co-authored-by: Hantong Chen <70561268+cxw620@users.noreply.github.com>

drivers/local/driver.go

@@ -128,11 +128,9 @@ func (d *Local) List(ctx context.Context, dir model.Obj, args model.ListArgs) ([
 	}
 	var files []model.Obj
 	for _, f := range rawFiles {
-		if !d.ShowHidden && strings.HasPrefix(f.Name(), ".") {
-			continue
+		if d.ShowHidden || !isHidden(f, fullPath) {
+			files = append(files, d.FileInfoToObj(ctx, f, args.ReqPath, fullPath))
 		}
-		file := d.FileInfoToObj(ctx, f, args.ReqPath, fullPath)
-		files = append(files, file)
 	}
 	return files, nil
 }

drivers/local/util_unix.go

@@ -0,0 +1,12 @@
+//go:build !windows
+
+package local
+
+import (
+	"io/fs"
+	"strings"
+)
+
+func isHidden(f fs.FileInfo, _ string) bool {
+	return strings.HasPrefix(f.Name(), ".")
+}

drivers/local/util_windows.go

@@ -0,0 +1,22 @@
+//go:build windows
+
+package local
+
+import (
+	"io/fs"
+	"path/filepath"
+	"syscall"
+)
+
+func isHidden(f fs.FileInfo, fullPath string) bool {
+	filePath := filepath.Join(fullPath, f.Name())
+	namePtr, err := syscall.UTF16PtrFromString(filePath)
+	if err != nil {
+		return false
+	}
+	attrs, err := syscall.GetFileAttributes(namePtr)
+	if err != nil {
+		return false
+	}
+	return attrs&syscall.FILE_ATTRIBUTE_HIDDEN != 0
+}