From 649fe1c2be69676ffd73c9ad1807ea0bc747b003 Mon Sep 17 00:00:00 2001
From: Richard van der Hoff <richard@matrix.org>
Date: Thu, 14 Feb 2019 17:29:40 +0000
Subject: [PATCH] Fix debian build dockerfile

Make sure it refreshes the apt cache before trying to install stuff
---
 docker/Dockerfile-dhvirtualenv | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/docker/Dockerfile-dhvirtualenv b/docker/Dockerfile-dhvirtualenv
index ab28e49291..224c92352d 100644
--- a/docker/Dockerfile-dhvirtualenv
+++ b/docker/Dockerfile-dhvirtualenv
@@ -58,7 +58,11 @@ RUN apt-get update -qq -o Acquire::Languages=none \
         sqlite3
 
 COPY --from=builder /dh-virtualenv_1.1-1_all.deb /
-RUN apt-get install -yq /dh-virtualenv_1.1-1_all.deb
+
+# install dhvirtualenv. Update the apt cache again first, in case we got a
+# cached cache from docker the first time.
+RUN apt-get update -qq -o Acquire::Languages=none \
+    && apt-get install -yq /dh-virtualenv_1.1-1_all.deb
 
 WORKDIR /synapse/source
 ENTRYPOINT ["bash","/synapse/source/docker/build_debian.sh"]
-- 
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