enable persistent Ccache cache in Cygwin CI tasks

This allows cached compilation results to be preserved and reused across CI
runs. It is hoped this will accelerate these currently long running tasks.

diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index b99d1b67fc19e0fa7ab627e56568acaa66c57c85..4567799a0d43b93519db10e0f8c9e7716dce07e6 100644 (file)
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -584,6 +584,7 @@ windows-cygwin-build:
     cache:
         key: windows-cygwin-build
         paths:
+            - ccache-cache
             - choco-cache
     tags:
         - windows
@@ -613,6 +614,7 @@ windows-cygwin-build-using-autogen:
     cache:
         key: windows-cygwin-build-using-autogen
         paths:
+            - ccache-cache
             - choco-cache
     tags:
         - windows
@@ -970,6 +972,7 @@ windows-cygwin-cmake-build:
     cache:
         key: windows-cygwin-cmake-build
         paths:
+            - ccache-cache
             - choco-cache
     tags:
         - windows

diff --git a/ci/cygwin-build.sh b/ci/cygwin-build.sh
index 2635fe680029a814678439c3287a69cd47aabf91..231ac8545ae35df1de134ec6ae39b2b3e11d60db 100644 (file)
--- a/ci/cygwin-build.sh
+++ b/ci/cygwin-build.sh
@@ -22,6 +22,7 @@ set -eux
 /cygwinsetup.exe --quiet-mode --wait --packages ccache
 export CC="ccache ${CC:-cc}"
 export CXX="ccache ${CXX:-c++}"
+export CCACHE_DIR=ccache-cache
 
 # use the libs installed with cygwinsetup instead of those in
 # https://gitlab.com/graphviz/graphviz-windows-dependencies