ci: Enable parallel build using circleci-matrix

The base image is built on the container 0. In the mean time, the other
containers wait for the base image to be ready.

.circleci-matrix.yml

@@ -0,0 +1,56 @@
+env:
+  - IMAGE=android-arm
+  - IMAGE=browser-asmjs
+  - IMAGE=linux-arm64
+  - IMAGE=linux-armv5
+  - IMAGE=linux-armv6
+  - IMAGE=linux-armv7
+  - IMAGE=linux-ppc64le
+  - IMAGE=linux-x64
+  - IMAGE=linux-x86
+  - IMAGE=manylinux-x64
+  - IMAGE=manylinux-x86
+  - IMAGE=windows-x64
+  - IMAGE=windows-x86
+command:
+  - |
+    if [[ $TASK == "test" ]]; then
+      if [[ $CIRCLE_NODE_INDEX == 0 ]]; then
+        if [[ -e ~/docker/base.tar ]]; then docker load -i ~/docker/base.tar; fi
+        docker pull dockcross/base
+        make base.test
+        mkdir -p ~/docker; docker save dockcross/base > ~/docker/base.tar
+        touch ~/BASE_READY
+      else
+        if [[ ! -f ~/BASE_LOADED ]]; then
+          echo "Waiting for node0"
+          while true; do
+            sleep 5
+            ssh -q node0 [[ -f ~/BASE_READY ]]
+            exit_code=$?
+            if [[ $exit_code -eq 0 ]]; then break; elif [[ $exit_code -eq 1 ]]; then echo -n "."; else exit $exit_code;fi
+          done
+          echo ""
+          echo "Copying base image from node0"
+          mkdir -p ~/docker; scp node0:~/docker/base.tar ~/docker/base.tar
+          docker load -i ~/docker/base.tar
+          docker pull dockcross/base
+          touch ~/BASE_LOADED
+        else
+          echo "Base image already loaded"
+        fi
+      fi
+      if [[ -e ~/docker/$IMAGE.tar ]]; then docker load -i ~/docker/$IMAGE.tar; fi
+      docker pull dockcross/$IMAGE
+      make $IMAGE.test
+      mkdir -p ~/docker; docker save dockcross/$IMAGE > ~/docker/$IMAGE.tar
+    fi
+  - |
+    if [[ $TASK == "deploy" ]]; then
+      docker login -e $DOCKER_EMAIL -u $DOCKER_USER -p $DOCKER_PASS
+      if [[ $CIRCLE_NODE_INDEX == 0 ]] && [[ ! -f ~/BASE_PUSHED ]]; then
+        docker push dockcross/base
+        touch ~/BASE_PUSHED
+      fi
+      docker push dockcross/$IMAGE
+    fi

circle.yml

@@ -12,54 +12,22 @@ dependencies:
 
   override:
     - docker info
-    - if [[ -e ~/docker/base.tar ]]; then docker load -i ~/docker/base.tar; fi
-    - docker pull dockcross/base
-    - |
-      for image in $(make display_images); do
-        if [[ -e ~/docker/$image.tar ]]; then
-          echo "Loading $image.tar"
-          docker load -i ~/docker/$image.tar;
-        fi
-        docker pull dockcross/$image
-      done
+    - curl -fsSL https://git.io/v2Ifs -o ~/bin/circleci-matrix
+    - chmod +x ~/bin/circleci-matrix
 
 test:
   override:
-    - make base.test
-    - mkdir -p ~/docker; docker save dockcross/base > ~/docker/base.tar
-    - make android-arm.test
-    - mkdir -p ~/docker; docker save dockcross/android-arm > ~/docker/android-arm.tar
-    - make browser-asmjs.test
-    - mkdir -p ~/docker; docker save dockcross/browser-asmjs > ~/docker/browser-asmjs.tar
-    - make linux-arm64.test
-    - mkdir -p ~/docker; docker save dockcross/linux-arm64 > ~/docker/linux-arm64.tar
-    - make linux-armv5.test
-    - mkdir -p ~/docker; docker save dockcross/linux-armv5 > ~/docker/linux-armv5.tar
-    - make linux-armv6.test
-    - mkdir -p ~/docker; docker save dockcross/linux-armv6 > ~/docker/linux-armv6.tar
-    - make linux-armv7.test
-    - mkdir -p ~/docker; docker save dockcross/linux-armv7 > ~/docker/linux-armv7.tar
-    - make linux-ppc64le.test
-    - mkdir -p ~/docker; docker save dockcross/linux-ppc64le > ~/docker/linux-ppc64le.tar
-    - make linux-x64.test
-    - mkdir -p ~/docker; docker save dockcross/linux-x64 > ~/docker/linux-x64.tar
-    - make linux-x86.test
-    - mkdir -p ~/docker; docker save dockcross/linux-x86 > ~/docker/linux-x86.tar
-    - make manylinux-x64.test
-    - mkdir -p ~/docker; docker save dockcross/manylinux-x64 > ~/docker/manylinux-x64.tar
-    - make manylinux-x86.test
-    - mkdir -p ~/docker; docker save dockcross/manylinux-x86 > ~/docker/manylinux-x86.tar
-    - make windows-x64.test:
+    - circleci-matrix:
+        parallel: true
         timeout: 3000
-    - mkdir -p ~/docker; docker save dockcross/windows-x64 > ~/docker/windows-x64.tar
-    - make windows-x86.test:
-        timeout: 3000
-    - mkdir -p ~/docker; docker save dockcross/windows-x86 > ~/docker/windows-x86.tar
+        environment:
+          TASK: test
 
 deployment:
   hub:
     branch: master
     commands:
-      - docker login -e $DOCKER_EMAIL -u $DOCKER_USER -p $DOCKER_PASS
-      - docker push dockcross/base
-      - for image in $(make display_images); do docker push dockcross/$image; done
+      - circleci-matrix:
+          parallel: true
+          environment:
+            TASK: deploy