From 98830d53a0decc6f3998b27e8aa6688abf3bd749 Mon Sep 17 00:00:00 2001
From: Ankit Khedia <36249596+ankkhedia@users.noreply.github.com>
Date: Fri, 16 Nov 2018 21:29:07 -0800
Subject: [PATCH] fix file lock issue (#13296)

---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index b12311736647..ad7f0ff3485f 100644
--- a/Makefile
+++ b/Makefile
@@ -597,7 +597,7 @@ rpkg:
 
 rpkgtest:
 	Rscript -e 'require(testthat);res<-test_dir("R-package/tests/testthat");if(!testthat:::all_passed(res)){stop("Test failures", call. = FALSE)}'
-	Rscript -e 'res<-covr:::package_coverage("R-package");fileConn<-file("r-package_coverage.json");writeLines(covr:::to_codecov(res), fileConn);close(fileConn)'
+	Rscript -e 'res<-covr:::package_coverage("R-package");fileConn<-file(paste("r-package_coverage_",toString(runif(1)),".json"));writeLines(covr:::to_codecov(res), fileConn);close(fileConn)'
 
 scalaclean:
 	(cd $(ROOTDIR)/scala-package; \