Merge v1.2.1-master

Signed-off-by: Emile Vauge <emile@vauge.com>

vendor/github.com/go-ini/ini/section.go

@@ -68,20 +68,33 @@ func (s *Section) NewKey(name, val string) (*Key, error) {
 	}
 
 	if inSlice(name, s.keyList) {
-		s.keys[name].value = val
+		if s.f.options.AllowShadows {
+			if err := s.keys[name].addShadow(val); err != nil {
+				return nil, err
+			}
+		} else {
+			s.keys[name].value = val
+		}
 		return s.keys[name], nil
 	}
 
 	s.keyList = append(s.keyList, name)
-	s.keys[name] = &Key{
-		s:     s,
-		name:  name,
-		value: val,
-	}
+	s.keys[name] = newKey(s, name, val)
 	s.keysHash[name] = val
 	return s.keys[name], nil
 }
 
+// NewBooleanKey creates a new boolean type key to given section.
+func (s *Section) NewBooleanKey(name string) (*Key, error) {
+	key, err := s.NewKey(name, "true")
+	if err != nil {
+		return nil, err
+	}
+
+	key.isBooleanType = true
+	return key, nil
+}
+
 // GetKey returns key in section by given name.
 func (s *Section) GetKey(name string) (*Key, error) {
 	// FIXME: change to section level lock?
@@ -219,3 +232,17 @@ func (s *Section) DeleteKey(name string) {
 		}
 	}
 }
+
+// ChildSections returns a list of child sections of current section.
+// For example, "[parent.child1]" and "[parent.child12]" are child sections
+// of section "[parent]".
+func (s *Section) ChildSections() []*Section {
+	prefix := s.name + "."
+	children := make([]*Section, 0, 3)
+	for _, name := range s.f.sectionList {
+		if strings.HasPrefix(name, prefix) {
+			children = append(children, s.f.sections[name])
+		}
+	}
+	return children
+}