Add hidden file support to add

License: MIT
Signed-off-by: Gaetan Voyer-Perrault <gatesvp@gmail.com>

files/is_hidden.go

+// +build !windows
+
+package files
+
+import (
+	"path/filepath"
+	"strings"
+)
+
+func IsHidden(f File) bool {
+
+	fName := filepath.Base(f.FileName())
+
+	if strings.HasPrefix(fName, ".") && len(fName) > 1 {
+		return true
+	}
+
+	return false
+}

files/is_hidden_windows.go

+// +build windows
+
+package files
+
+import (
+	"path/filepath"
+	"strings"
+	"syscall"
+)
+
+func IsHidden(f File) bool {
+
+	fName := filepath.Base(f.FileName())
+
+	if strings.HasPrefix(fName, ".") && len(fName) > 1 {
+		return true
+	}
+
+	p, e := syscall.UTF16PtrFromString(f.FileName())
+	if e != nil {
+		return false
+	}
+
+	attrs, e := syscall.GetFileAttributes(p)
+	if e != nil {
+		return false
+	}
+	return attrs&syscall.FILE_ATTRIBUTE_HIDDEN != 0
+}

files/serialfile.go

@@ -3,7 +3,7 @@ package files
 import (
 	"io"
 	"os"
-	fp "path"
+	fp "path/filepath"
 	"sort"
 	"syscall"
 )