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

* Moving plugins to use hashicorp go-plugin.

* Tweaks from feedback.

1 files changed, 28 insertions, 0 deletions

diff --git a/vendor/github.com/hashicorp/go-plugin/discover.go b/vendor/github.com/hashicorp/go-plugin/discover.go
new file mode 100644
index 000000000..d22c566ed
--- /dev/null
+++ b/vendor/github.com/hashicorp/go-plugin/discover.go
@@ -0,0 +1,28 @@
+package plugin
+
+import (
+	"path/filepath"
+)
+
+// Discover discovers plugins that are in a given directory.
+//
+// The directory doesn't need to be absolute. For example, "." will work fine.
+//
+// This currently assumes any file matching the glob is a plugin.
+// In the future this may be smarter about checking that a file is
+// executable and so on.
+//
+// TODO: test
+func Discover(glob, dir string) ([]string, error) {
+	var err error
+
+	// Make the directory absolute if it isn't already
+	if !filepath.IsAbs(dir) {
+		dir, err = filepath.Abs(dir)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	return filepath.Glob(filepath.Join(dir, glob))
+}