MM-10702 Moving plugins to use hashicorp go-plugin. (#8978)

* Moving plugins to use hashicorp go-plugin.

* Tweaks from feedback.

1 files changed, 24 insertions, 0 deletions

diff --git a/vendor/github.com/hashicorp/go-plugin/error.go b/vendor/github.com/hashicorp/go-plugin/error.go
new file mode 100644
index 000000000..22a7baa6a
--- /dev/null
+++ b/vendor/github.com/hashicorp/go-plugin/error.go
@@ -0,0 +1,24 @@
+package plugin
+
+// This is a type that wraps error types so that they can be messaged
+// across RPC channels. Since "error" is an interface, we can't always
+// gob-encode the underlying structure. This is a valid error interface
+// implementer that we will push across.
+type BasicError struct {
+	Message string
+}
+
+// NewBasicError is used to create a BasicError.
+//
+// err is allowed to be nil.
+func NewBasicError(err error) *BasicError {
+	if err == nil {
+		return nil
+	}
+
+	return &BasicError{err.Error()}
+}
+
+func (e *BasicError) Error() string {
+	return e.Message
+}