CI Amend

Former-commit-id: 4a30daf5d03f2980e49d88c52ab138093b9f65c9

.gitlab-ci.yml

 variables:
   GIT_SUBMODULE_STRATEGY: recursive
 
+.linux-prepare:
+
+ before_script:
+   ##
+   ## If a LINDOOR_USER_KEY is defined then start ssh-agent and add the key
+   ##
+   - if ! [ -z ${LINDOOR_USER_KEY+x} ]; then eval $(ssh-agent -s); fi
+   - if ! [ -z ${LINDOOR_USER_KEY+x} ]; then echo "$LINDOOR_USER_KEY" | tr -d '\r' | ssh-add - > /dev/null; fi
+   - if ! [ -z ${LINDOOR_USER_KEY+x} ]; then mkdir -p ~/.ssh && chmod 700 ~/.ssh; fi
+   - if ! [ -z ${LINDOOR_USER_KEY+x} ]; then echo -e "Host gitlab.linphone.org\n\tStrictHostKeyChecking no\n\n" > ~/.ssh/config; fi
+
+   ##
+   ## Then configure ccache
+   ##
+   - mkdir -p ccache
+   - echo "max_size = $CCACHE_SIZE" > ccache/ccache.conf
+   - echo $CCACHE_SIZE
+   - echo ${PWD}/ccache
+   - export CCACHE_BASEDIR=${PWD}
+   - export CCACHE_DIR=${PWD}/ccache
+   - ccache -s
+
+ after_script:
+   - if ! [ -z ${LINDOOR_USER_KEY+x} ]; then rm -rf ~/.ssh || true; fi
+   - export CCACHE_DIR=${PWD}/ccache
+   - ccache -s
 
 job-android:
 
+  extends: .linux-prepare
+
   stage: build
   tags: [ "docker-android" ]
   image: gitlab.linphone.org:4567/bc/public/linphone-android/bc-dev-android:29