환경변수를 expand할 수 있음

client/operation.go

@@ -153,7 +153,14 @@ func prepareProcessLaunch(storageRoot string, req *shared.StartProcessRequest) *
 		os.Chmod(path.Join(verpath, exefile), 0777)
 
 		exef, _ := os.Executable()
-		cmd := exec.Command(path.Join(path.Dir(exef), verpath, exefile), req.Args[1:]...)
+
+		expanded := make([]string, len(req.Args))
+		for i, arg := range req.Args {
+			expanded[i] = os.ExpandEnv(arg)
+		}
+		exename := path.Join(path.Dir(exef), verpath, exefile)
+
+		cmd := exec.Command(os.ExpandEnv(exename), expanded[1:]...)
 
 		cmd.Dir = verpath
 		stdin, _ := cmd.StdinPipe()