From 6b6c6c71ca97fdd5c7436e47e15626f0dddabca8 Mon Sep 17 00:00:00 2001
From: ebbit1q <ebbit1q@gmail.com>
Date: Tue, 20 Nov 2018 14:55:20 +0100
Subject: [PATCH] add ccache to docker compilation (#3446)

* add ccache to docker image

* test commit please ignore
---
 .ci/UbuntuBionic/Dockerfile | 1 +
 .travis.yml                 | 8 ++++++--
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/.ci/UbuntuBionic/Dockerfile b/.ci/UbuntuBionic/Dockerfile
index 17b8e1cb..65ef1f6d 100644
--- a/.ci/UbuntuBionic/Dockerfile
+++ b/.ci/UbuntuBionic/Dockerfile
@@ -7,6 +7,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
         file \
         g++ \
         git \
+        ccache \
         cmake \
         libprotobuf-dev \
         libqt5multimedia5-plugins \
diff --git a/.travis.yml b/.travis.yml
index 0f7b87bd..d1755773 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,13 +9,17 @@ matrix:
     if: tag IS NOT present
     services: docker
     before_install: docker build -t img .ci/UbuntuBionic
-    script: docker run --mount "type=bind,source=$(pwd),target=/src" -w="/src" img
+    script: docker run --mount "type=bind,source=$(pwd),target=/src" -w="/src" 
+          --mount "type=bind,source=$HOME/.ccache,target=/.ccache" -e "CCACHE_DIR=/.ccache"
+          img
           bash .ci/travis-compile.sh --server --debug
   - name: Ubuntu Bionic (Release)
     if: (branch = master AND NOT type = pull_request) OR tag IS present
     services: docker
     before_install: docker build -t img .ci/UbuntuBionic
-    script: docker run --mount "type=bind,source=$(pwd),target=/src" -w="/src" img
+    script: docker run --mount "type=bind,source=$(pwd),target=/src" -w="/src" 
+          --mount "type=bind,source=$HOME/.ccache,target=/.ccache" -e "CCACHE_DIR=/.ccache"
+          img
           bash .ci/travis-compile.sh --server --package --release
 
   #Ubuntu Xenial (Debug only)