travis: build with ccache

Helps with local build speed, especially if re-running.

Signed-off-by: Steven Noonan <[email protected]>

Author: Steven Noonan

.travis/build-cmake.sh

@@ -28,6 +28,8 @@ cleanup
 
 CMAKE_ARGS=(
 	-G Ninja
+	-DCMAKE_CXX_COMPILER_LAUNCHER=ccache
+	-DCMAKE_C_COMPILER_LAUNCHER=ccache
 	-DLIGHT_TESTS:BOOL=ON
 	-DWERROR=ON
 )

.travis/build.sh

@@ -58,17 +58,22 @@ has cmake || has meson || die "No build system available"
 # We also need at least one compiler
 has_clang || has_gcc || die "No compiler available"
 
+export CCACHE_DIR=$PWD/build-travis-ccache
+ccache -M4G
+
 if has_clang; then
 	msg "Beginning build tests with Clang"
-	export CC=clang CXX=clang++
+	export CC="ccache clang" CXX="ccache clang++"
 	has meson && bash .travis/build-meson.sh
+	export CC=clang CXX=clang++
 	has cmake && bash .travis/build-cmake.sh
 fi
 
 if has_gcc; then
 	msg "Beginning build tests with GCC"
-	export CC=gcc CXX=g++
+	export CC="ccache gcc" CXX="ccache g++"
 	has meson && bash .travis/build-meson.sh
+	export CC=gcc CXX=g++
 	has cmake && bash .travis/build-cmake.sh
 fi
 

.travis/install-alpine.sh

@@ -12,6 +12,7 @@ PACKAGES=(
 	clang-dev
 	gcc
 	g++
+	ccache
 	cmake
 	meson
 	pkgconf

.travis/install-archlinux.sh

@@ -7,6 +7,7 @@ set -ex
 # Base build packages
 PACKAGES=(
 	base-devel
+	ccache
 	clang
 	cmake
 	meson

.travis/install-fedora.sh

@@ -9,6 +9,7 @@ PACKAGES=(
 	gcc-c++
 	libasan
 	libubsan
+	ccache
 	clang
 	cmake
 	meson

.travis/install-ubuntu.sh

@@ -8,7 +8,7 @@ apt-get update
 apt-get install -y locales
 locale-gen en_US.UTF-8
 
-PACKAGES=(build-essential pkg-config cmake meson clang)
+PACKAGES=(build-essential pkg-config ccache cmake meson clang)
 
 PACKAGES+=(libprotobuf-dev protobuf-compiler)
 PACKAGES+=(libssl-dev)