add filesystem attr (on linux) support

fsutils/funcs_fsattrs.go

@@ -0,0 +1,43 @@
+package fsutils
+
+import (
+	`os`
+	`reflect`
+
+	`github.com/g0rbe/go-chattr`
+	`r00t2.io/sysutils/paths`
+)
+
+func (f *FsAttrs) Apply(path string) (err error) {
+
+	var file *os.File
+	var reflectVal reflect.Value
+	var fieldVal reflect.Value
+
+	var myPath string = path
+
+	if err = paths.RealPath(&myPath); err != nil {
+		return
+	}
+	if file, err = os.Open(myPath); err != nil {
+		return
+	}
+	defer file.Close()
+
+	reflectVal = reflect.ValueOf(*f)
+
+	for attrNm, attrVal := range AttrNameValueMap {
+		fieldVal = reflectVal.FieldByName(attrNm)
+		if fieldVal.Bool() {
+			if err = chattr.SetAttr(file, attrVal); err != nil {
+				return
+			}
+		} else {
+			if err = chattr.UnsetAttr(file, attrVal); err != nil {
+				return
+			}
+		}
+	}
+
+	return
+}