func mergeGroups()

in groups/reconcile.go [448:465]

• 18 lines of code
• 6 McCabe index (conditional complexity)

func mergeGroups(a []GoogleGroup, b []GoogleGroup, r Restriction) ([]GoogleGroup, error) {
	emails := map[string]struct{}{}
	for _, v := range a {
		emails[v.EmailId] = struct{}{}
	}
	for _, v := range b {
		if v.EmailId == "" {
			return nil, fmt.Errorf("groups must have email-id")
		}
		if !matchesRegexList(v.EmailId, r.AllowedGroupsRe) {
			return nil, fmt.Errorf("cannot define group %q in %q", v.EmailId, r.Path)
		}
		if _, ok := emails[v.EmailId]; ok {
			return nil, fmt.Errorf("cannot overwrite group definitions (duplicate group name %s)", v.EmailId)
		}
	}
	return append(a, b...), nil
}