add a second cache directory for Docker image building

because they just take too much time

Author: 3nids

.ci/travis/linux/script.sh

@@ -20,7 +20,7 @@ mkdir -p "$CCACHE_DIR"
 
 if [[ ${DOCKER_BUILD_QGIS_IMAGE} =~ true ]]; then
   # copy ccache dir within QGIS source so it can be accessed from docker
-  cp -r ${CCACHE_DIR} ${TRAVIS_BUILD_DIR}/.ccache
+  cp -r ${CCACHE_DIR_IMAGE_BUILD} ${TRAVIS_BUILD_DIR}/.ccache_image_build
   # building docker images
   DIR=$(git rev-parse --show-toplevel)/.docker
   pushd "${DIR}"
@@ -32,20 +32,24 @@ if [[ ${DOCKER_BUILD_QGIS_IMAGE} =~ true ]]; then
   echo "${bold}Pushing image to docker hub...${endbold}"
   docker login -u="$DOCKER_USERNAME" -p="$DOCKER_PASSWORD"
   docker push "qgis/qgis:${DOCKER_TAG}"
+  echo "Copy build cache from Docker container to Travis cache directory"
+  rm -rf ${CCACHE_DIR_IMAGE_BUILD}/*
+  container_id=$(docker images -q "qgis/qgis:${DOCKER_TAG}")
+  docker cp ${container_id}:/usr/src/QGIS/.ccache_image_build ${CCACHE_DIR_IMAGE_BUILD}
   popd
   echo "Trigger build of PyQGIS Documentation"
-  body='{
-    "request": {
-      "branch":"master",
-      "message": "Trigger PyQGIS doc build after release of new Docker image",
-      "config": {
-        "merge_mode": "deep_merge",
-        "env": {
-          "global": ["QGIS_VERSION_BRANCH=release-3_4"]
+  body="{
+    'request': {
+      'branch':'master',
+      'message': 'Trigger PyQGIS doc build after release of new Docker image as ${DOCKER_TAG}',
+      'config': {
+        'merge_mode': 'deep_merge',
+        'env': {
+          'global': ['QGIS_VERSION_BRANCH=${TRAVIS_BRANCH}']
         }
       }
     }
-  }'
+  }"
   curl -s -X POST -H "Content-Type: application/json" -H "Accept: application/json" \
     -H "Travis-API-Version: 3" -H "Authorization: token $TRAVIS_TOKEN" -d "$body" \
     https://api.travis-ci.org/repo/qgis%2Fpyqgis/requests

.docker/docker-compose.travis.yml

@@ -16,7 +16,7 @@ services:
     image: qgis/qgis3-build-deps:${DOCKER_TAG}
     volumes:
       - ${TRAVIS_BUILD_DIR}:/root/QGIS
-      - ${CCACHE_DIR}:/root/.ccache  # if changed, also change env var
+      - ${CCACHE_DIR_TESTING}:/root/.ccache  # if changed, also change env var
     links:
       - postgres
       - mssql

.docker/qgis.dockerfile

@@ -16,7 +16,8 @@ ENV LANG=C.UTF-8
 
 COPY . /usr/src/QGIS
 
-ENV CCACHE_DIR=/usr/src/QGIS/.ccache
+# If this directory is changed, also adapt script.sh which copies the directory
+ENV CCACHE_DIR=/usr/src/QGIS/.ccache_image_build
 RUN ccache -M 1G
 RUN ccache -s
 

.travis.yml

@@ -7,14 +7,16 @@ cache:
   apt: true
   pip: true
   directories:
-    - ${HOME}/.ccache
+    - ${HOME}/.ccache_testing
+    - ${HOME}/.ccache_docker_build
   timeout: 1000
 if: NOT branch =~ /^(cherry-pick-)?backport-\d+-on-/
 
 env:
   global:
     - TRAVIS_TIMESTAMP=$(date +%s)
-    - CCACHE_DIR=${HOME}/.ccache
+    - CCACHE_DIR_TESTING=${HOME}/.ccache_testing
+    - CCACHE_DIR_IMAGE_BUILD=${HOME}/.ccache_docker_build
     # Docker hub username and passowrd
     - secure: "b7eMDIolaAnq1voGKC1ez7Kcf+/A0WZDJEHBvNwk2KubBfrGOE83GMDrFNF4NqjIprqIAvVKj+TrX1ckCvs24re3IqUJo71TaF1IgxzDDPwSsmNh5UMmvZkeiJys9bWjqDO9wYR5ietNmIE18qyMc8ToJk8oKm6AXuAG2n6znmM="
     - secure: "PHCp7F3nApp38Mz6b4/OLxgfBiikRGzPQDHg3R5LX+SQOll24c/DMtwpPwizNuFEiCFcRmJ9uc1t0HWEerIZe5uqm7AtE/nMXBsvDZ+hj4Tz/fEBF98a1k4WLYheN1exFidVkJgdAeiwMOOUQXw5KuIX62bxBdzsdcd0QGwxiXo="