From 6a0d76a308cd97f49672fa2e0b402b0e33253d8b Mon Sep 17 00:00:00 2001
From: Yamato Matsuoka <yamaton@gmail.com>
Date: Sat, 8 Jul 2023 12:03:28 -0400
Subject: [PATCH] Fix rstudio-build selection

---
 repo2docker/buildpacks/_r_base.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/repo2docker/buildpacks/_r_base.py b/repo2docker/buildpacks/_r_base.py
index 772b2d80..f01a4370 100644
--- a/repo2docker/buildpacks/_r_base.py
+++ b/repo2docker/buildpacks/_r_base.py
@@ -38,7 +38,7 @@ def rstudio_base_scripts(r_version):
             # which will upgrade the installed version of R, undoing our pinned version
             rf"""
             apt-get update > /dev/null && \
-            if apt-cache search libssl3 > /dev/null; then \
+            if apt-cache search libssl3 | grep -q libssl3; then \
               RSTUDIO_URL="{rstudio_openssl3_url}" ;\
               RSTUDIO_HASH="{rstudio_openssl3_sha256sum}" ;\
             else \