From 8a529064322d0350768e978043b2dff3cba58080 Mon Sep 17 00:00:00 2001
From: Jakob Ackermann <jakob.ackermann@overleaf.com>
Date: Wed, 7 Jul 2021 14:00:49 +0100
Subject: [PATCH] [perf] use docker layer caching from previous build

---
 Makefile | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 55eca07ac2..4896799f31 100644
--- a/Makefile
+++ b/Makefile
@@ -2,9 +2,11 @@
 
 SHARELATEX_BASE_TAG := sharelatex/sharelatex-base
 SHARELATEX_TAG := sharelatex/sharelatex
+SHARELATEX_BASE_CACHE := $(shell echo $(SHARELATEX_BASE_TAG) | sed -E 's/(.+):.+/\1:latest/')
 
 build-base:
-	docker build -f Dockerfile-base -t  $(SHARELATEX_BASE_TAG) .
+	docker pull $(SHARELATEX_BASE_CACHE)
+	docker build -f Dockerfile-base --pull --cache-from $(SHARELATEX_BASE_CACHE) -t $(SHARELATEX_BASE_TAG) .
 
 
 build-community: