From 96dc278bea01b3b1d66c60038a56faa38b7894b8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Carlos=20=C3=81lvaro?= <carlos@cdalvaro.io>
Date: Sat, 16 May 2020 18:10:49 +0200
Subject: [PATCH] feat: Use previous image as Docker cache

---
 hooks/build | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/hooks/build b/hooks/build
index 4fbe91e..b984052 100644
--- a/hooks/build
+++ b/hooks/build
@@ -3,7 +3,10 @@
 # Docker Daemon Build Hook
 # $IMAGE_NAME var is injected into the build so the tag is correct.
 
+docker pull ${DOCKER_REPO}:latest
+
 docker build \
+        --cache-from=${DOCKER_REPO}:latest \
         --build-arg=BUILD_DATE="$(date +"%Y-%m-%d %H:%M:%S%:z")" \
 		--build-arg=VCS_REF="$(git rev-parse --short HEAD)" \
 		-t ${IMAGE_NAME} .