[libvirt PATCH 2/2] gitlab: Enable improved ccache usage

Setting CC="ccache cc" works in most cases, but sometimes it will break the build: in particular, we have experienced issues in the past with that approach when using cgo to build our Go bindings. A more robust approach is to have a directory containing symlinks from the compiler name to the ccache binary: in that case, ccache itself will invoke the compiler, and the build system will be none the wiser. Since libvirt-jenkins-ci commit 2563aebb6c5c, container images contain a suitable symlink directory, so all that's needed to enable the new approach is to add this directory to $PATH. Since we're touching this anyway, we make a few more changes: $CCACHE_DIR is no longer created manually, because ccache will take care of creating it for us if it doesn't already exist; the ccache setup is moved out of the job template and into script_variables, removing unnecessary duplication; a limit is set on the size of the cache (500 MB, which is twice the amount used by a fresh build on my Fedora 31 machine). Signed-off-by: Andrea Bolognani <abologna(a)redhat.com&gt; --- .gitlab-ci.yml | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml index 3203434b99..99e7b510c7 100644 --- a/.gitlab-ci.yml +++ b/.gitlab-ci.yml @@ -8,6 +8,10 @@ stages: .script_variables: &script_variables | export MAKEFLAGS="-j$(getconf _NPROCESSORS_ONLN)" + export CCACHE_BASEDIR="$(pwd)" + export CCACHE_DIR="$CCACHE_BASEDIR/ccache" + export CCACHE_MAXSIZE="500M" + export PATH="$CCACHE_WRAPPERSDIR:$PATH" # Common templates @@ -20,10 +24,6 @@ stages: key: "$CI_JOB_NAME" before_script: - *script_variables - - mkdir -p ccache - - export CC="ccache gcc" - - export CCACHE_BASEDIR=${PWD} - - export CCACHE_DIR=${PWD}/ccache script: - mkdir build - cd build @@ -48,10 +48,6 @@ stages: key: "$CI_JOB_NAME" before_script: - *script_variables - - mkdir -p ccache - - export CC="ccache ${ABI}-gcc" - - export CCACHE_BASEDIR=${PWD} - - export CCACHE_DIR=${PWD}/ccache script: - mkdir build - cd build -- 2.25.1