1 files changed, 29 insertions, 0 deletions
diff --git a/src/cmd/go/internal/modconv/vjson.go b/src/cmd/go/internal/modconv/vjson.go
new file mode 100644
index 0000000..1bd025c
--- /dev/null
+++ b/src/cmd/go/internal/modconv/vjson.go
@@ -0,0 +1,29 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package modconv
+
+import (
+	"encoding/json"
+
+	"golang.org/x/mod/modfile"
+	"golang.org/x/mod/module"
+)
+
+func ParseVendorJSON(file string, data []byte) (*modfile.File, error) {
+	var cfg struct {
+		Package []struct {
+			Path     string
+			Revision string
+		}
+	}
+	if err := json.Unmarshal(data, &cfg); err != nil {
+		return nil, err
+	}
+	mf := new(modfile.File)
+	for _, d := range cfg.Package {
+		mf.Require = append(mf.Require, &modfile.Require{Mod: module.Version{Path: d.Path, Version: d.Revision}})
+	}
+	return mf, nil
+}