add package

[bytom/vapor.git] / vendor / github.com / hashicorp / go-plugin / discover.go

diff --git a/vendor/github.com/hashicorp/go-plugin/discover.go b/vendor/github.com/hashicorp/go-plugin/discover.go
new file mode 100644 (file)
index 0000000..d22c566
--- /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))
+}