From c97c001fc428eafa7c4d2baaca3a9fe4261b97ee Mon Sep 17 00:00:00 2001
From: "Singh, NileshKumar" <nilesh_singh1@dell.com>
Date: Sat, 12 Jun 2021 19:48:37 +0530
Subject: [PATCH] Add invocation args & mockgen version in generated code

---
 mockgen/mockgen.go | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/mockgen/mockgen.go b/mockgen/mockgen.go
index 50487070..53d997eb 100644
--- a/mockgen/mockgen.go
+++ b/mockgen/mockgen.go
@@ -31,6 +31,7 @@ import (
 	"os/exec"
 	"path"
 	"path/filepath"
+	"runtime/debug"
 	"sort"
 	"strconv"
 	"strings"
@@ -279,6 +280,16 @@ func (g *generator) Generate(pkg *model.Package, outputPkgName string, outputPac
 	} else {
 		g.p("// Source: %v (interfaces: %v)", g.srcPackage, g.srcInterfaces)
 	}
+	g.p("//")
+
+	g.p("// Generated by this command:")
+	invocatedCmd := strings.Join(os.Args, " ")
+	g.p("//    %v", invocatedCmd)
+
+	if bi, exists := debug.ReadBuildInfo(); exists {
+		g.p("//")
+		g.p("// Mockgen version: %v", bi.Main.Version)
+	}
 	g.p("")
 
 	// Get all required imports, and generate unique names for them all.