1 files changed, 93 insertions, 0 deletions
diff --git a/vendor/github.com/pborman/getopt/v2/error.go b/vendor/github.com/pborman/getopt/v2/error.go
new file mode 100644
index 0000000..6f668a3
--- /dev/null
+++ b/vendor/github.com/pborman/getopt/v2/error.go
@@ -0,0 +1,93 @@
+// Copyright 2017 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 "fmt"
+
+// An Error is returned by Getopt when it encounters an error.
+type Error struct {
+	ErrorCode        // General reason of failure.
+	Err       error  // The actual error.
+	Parameter string // Parameter passed to option, if any
+	Name      string // Option that cause error, if any
+}
+
+// Error returns the error message, implementing the error interface.
+func (i *Error) Error() string { return i.Err.Error() }
+
+// An ErrorCode indicates what sort of error was encountered.
+type ErrorCode int
+
+const (
+	NoError          = ErrorCode(iota)
+	UnknownOption    // an invalid option was encountered
+	MissingParameter // the options parameter is missing
+	ExtraParameter   // a value was set to a long flag
+	Invalid          // attempt to set an invalid value
+)
+
+func (e ErrorCode) String() string {
+	switch e {
+	case UnknownOption:
+		return "unknow option"
+	case MissingParameter:
+		return "missing argument"
+	case ExtraParameter:
+		return "unxpected value"
+	case Invalid:
+		return "error setting value"
+	}
+	return "unknown error"
+}
+
+// unknownOption returns an Error indicating an unknown option was
+// encountered.
+func unknownOption(name interface{}) *Error {
+	i := &Error{ErrorCode: UnknownOption}
+	switch n := name.(type) {
+	case rune:
+		if n == '-' {
+			i.Name = "-"
+		} else {
+			i.Name = "-" + string(n)
+		}
+	case string:
+		i.Name = "--" + n
+	}
+	i.Err = fmt.Errorf("unknown option: %s", i.Name)
+	return i
+}
+
+// missingArg returns an Error inidicating option o was not passed
+// a required paramter.
+func missingArg(o Option) *Error {
+	return &Error{
+		ErrorCode: MissingParameter,
+		Name:      o.Name(),
+		Err:       fmt.Errorf("missing parameter for %s", o.Name()),
+	}
+}
+
+// extraArg returns an Error inidicating option o was passed the
+// unexpected paramter value.
+func extraArg(o Option, value string) *Error {
+	return &Error{
+		ErrorCode: ExtraParameter,
+		Name:      o.Name(),
+		Parameter: value,
+		Err:       fmt.Errorf("unexpected parameter passed to %s: %q", o.Name(), value),
+	}
+}
+
+// setError returns an Error inidicating option o and the specified
+// error while setting it to value.
+func setError(o Option, value string, err error) *Error {
+	return &Error{
+		ErrorCode: Invalid,
+		Name:      o.Name(),
+		Parameter: value,
+		Err:       err,
+	}
+}