1 files changed, 73 insertions, 0 deletions
diff --git a/vendor/github.com/pborman/getopt/enum.go b/vendor/github.com/pborman/getopt/enum.go
new file mode 100644
index 0000000..ee4cf95
--- /dev/null
+++ b/vendor/github.com/pborman/getopt/enum.go
@@ -0,0 +1,73 @@
+// Copyright 2013 Google Inc.  All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package getopt
+
+import "errors"
+
+type enumValue string
+
+var enumValues = make(map[*enumValue]map[string]struct{})
+
+func (s *enumValue) Set(value string, opt Option) error {
+	es, ok := enumValues[s]
+	if !ok || es == nil {
+		return errors.New("this option has no values")
+	}
+	if _, ok := es[value]; !ok {
+		return errors.New("invalid value: " + value)
+	}
+	*s = enumValue(value)
+	return nil
+}
+
+func (s *enumValue) String() string {
+	return string(*s)
+}
+
+// Enum creates an option that can only be set to one of the enumerated strings
+// passed in values.  Passing nil or an empty slice results in an option that
+// will always fail.
+func Enum(name rune, values []string, helpvalue ...string) *string {
+	return CommandLine.Enum(name, values, helpvalue...)
+}
+
+func (s *Set) Enum(name rune, values []string, helpvalue ...string) *string {
+	var p string
+	s.EnumVarLong(&p, "", name, values, helpvalue...)
+	return &p
+}
+
+func EnumLong(name string, short rune, values []string, helpvalue ...string) *string {
+	return CommandLine.EnumLong(name, short, values, helpvalue...)
+}
+
+func (s *Set) EnumLong(name string, short rune, values []string, helpvalue ...string) *string {
+	var p string
+	s.EnumVarLong(&p, name, short, values, helpvalue...)
+	return &p
+}
+
+// EnumVar creates an enum option that defaults to the starting value of *p.
+// If *p is not found in values then a reset of this option will fail.
+func EnumVar(p *string, name rune, values []string, helpvalue ...string) Option {
+	return CommandLine.EnumVar(p, name, values, helpvalue...)
+}
+
+func (s *Set) EnumVar(p *string, name rune, values []string, helpvalue ...string) Option {
+	return s.EnumVarLong(p, "", name, values, helpvalue...)
+}
+
+func EnumVarLong(p *string, name string, short rune, values []string, helpvalue ...string) Option {
+	return CommandLine.EnumVarLong(p, name, short, values, helpvalue...)
+}
+
+func (s *Set) EnumVarLong(p *string, name string, short rune, values []string, helpvalue ...string) Option {
+	m := make(map[string]struct{})
+	for _, v := range values {
+		m[v] = struct{}{}
+	}
+	enumValues[(*enumValue)(p)] = m
+	return s.VarLong((*enumValue)(p), name, short, helpvalue...)
+}