travis: use cache

.travis.yml

@@ -25,6 +25,7 @@ matrix:
       install: "./.travis/linux/deps.sh"
       script: "./.travis/linux/build.sh"
       after_success: "./.travis/linux/upload.sh"
+      cache: ccache
     - if: branch = master AND type = push
       os: linux
       env: NAME="transifex push"
@@ -40,11 +41,13 @@ matrix:
       install: "./.travis/macos/deps.sh"
       script: "./.travis/macos/build.sh"
       after_success: "./.travis/macos/upload.sh"
+      cache: ccache
     - os: linux
       env: NAME="linux build (frozen versions of dependencies)"
       sudo: required
       dist: trusty
       services: docker
+      cache: ccache
       script: "./.travis/linux-frozen/build.sh"
 
 deploy:

.travis/linux-frozen/build.sh

@@ -1,4 +1,4 @@
 #!/bin/bash -ex
-
+mkdir "$HOME/.ccache" || true
 docker pull ubuntu:18.04
-docker run -e ENABLE_COMPATIBILITY_REPORTING -v $(pwd):/citra ubuntu:18.04 /bin/bash -ex /citra/.travis/linux-frozen/docker.sh
+docker run -e ENABLE_COMPATIBILITY_REPORTING -v $(pwd):/citra -v "$HOME/.ccache":/root/.ccache ubuntu:18.04  /bin/bash -ex /citra/.travis/linux-frozen/docker.sh

.travis/linux-frozen/docker.sh

@@ -3,7 +3,7 @@
 cd /citra
 
 apt-get update
-apt-get install -y build-essential wget git python-launchpadlib
+apt-get install -y build-essential wget git python-launchpadlib ccache
 
 # Install specific versions of packages with their dependencies
 # The apt repositories remove older versions regularly, so we can't use
@@ -20,7 +20,7 @@ echo y | sh cmake-3.10.1-Linux-x86_64.sh --prefix=cmake
 export PATH=/citra/cmake/cmake-3.10.1-Linux-x86_64/bin:$PATH
 
 mkdir build && cd build
-cmake .. -DCMAKE_BUILD_TYPE=Release -DCITRA_ENABLE_COMPATIBILITY_REPORTING=${ENABLE_COMPATIBILITY_REPORTING:-"OFF"}
+CC=/usr/lib/ccache/gcc CXX=/usr/lib/ccache/g++ cmake .. -DCMAKE_BUILD_TYPE=Release -DCITRA_ENABLE_COMPATIBILITY_REPORTING=${ENABLE_COMPATIBILITY_REPORTING:-"OFF"}
 make -j4
 
 ctest -VV -C Release

.travis/linux/build.sh

@@ -1,3 +1,3 @@
 #!/bin/bash -ex
-
-docker run -e ENABLE_COMPATIBILITY_REPORTING -v $(pwd):/citra ubuntu:18.04 /bin/bash -ex /citra/.travis/linux/docker.sh
+mkdir "$HOME/.ccache" || true
+docker run -e ENABLE_COMPATIBILITY_REPORTING -v $(pwd):/citra -v "$HOME/.ccache":/root/.ccache ubuntu:18.04 /bin/bash -ex /citra/.travis/linux/docker.sh

.travis/linux/docker.sh

@@ -3,7 +3,7 @@
 cd /citra
 
 apt-get update
-apt-get install -y build-essential libsdl2-dev qtbase5-dev libqt5opengl5-dev qttools5-dev qttools5-dev-tools wget git
+apt-get install -y build-essential libsdl2-dev qtbase5-dev libqt5opengl5-dev qttools5-dev qttools5-dev-tools wget git ccache
 
 # Get a recent version of CMake
 wget https://cmake.org/files/v3.10/cmake-3.10.1-Linux-x86_64.sh
@@ -11,7 +11,7 @@ echo y | sh cmake-3.10.1-Linux-x86_64.sh --prefix=cmake
 export PATH=/citra/cmake/cmake-3.10.1-Linux-x86_64/bin:$PATH
 
 mkdir build && cd build
-cmake .. -DCMAKE_BUILD_TYPE=Release -DENABLE_QT_TRANSLATION=ON -DCITRA_ENABLE_COMPATIBILITY_REPORTING=${ENABLE_COMPATIBILITY_REPORTING:-"OFF"}
+CC=/usr/lib/ccache/gcc CXX=/usr/lib/ccache/g++ cmake .. -DCMAKE_BUILD_TYPE=Release -DENABLE_QT_TRANSLATION=ON -DCITRA_ENABLE_COMPATIBILITY_REPORTING=${ENABLE_COMPATIBILITY_REPORTING:-"OFF"}
 make -j4
 
 ctest -VV -C Release

.travis/macos/build.sh

@@ -4,6 +4,7 @@ set -o pipefail
 
 export MACOSX_DEPLOYMENT_TARGET=10.12
 export Qt5_DIR=$(brew --prefix)/opt/qt5
+export PATH="/usr/local/opt/ccache/libexec:$PATH"
 
 mkdir build && cd build
 cmake .. -DCMAKE_OSX_ARCHITECTURES="x86_64;x86_64h" -DCMAKE_BUILD_TYPE=Release -DENABLE_QT_TRANSLATION=ON -DCITRA_ENABLE_COMPATIBILITY_REPORTING=${ENABLE_COMPATIBILITY_REPORTING:-"OFF"}

.travis/macos/deps.sh

@@ -1,4 +1,4 @@
 #!/bin/sh -ex
 
 brew update
-brew install qt5 sdl2 dylibbundler p7zip
+brew install qt5 sdl2 dylibbundler p7zip ccache