Use build matrix to speed up build and push processes

.travis.yml

@@ -10,6 +10,14 @@ services:
 
 install: "pip install -r requirements.txt"
 
+env:
+  matrix:
+    - ANDROID_VERSION=5.0.1
+    - ANDROID_VERSION=5.1.1
+    - ANDROID_VERSION=6.0
+    - ANDROID_VERSION=7.0
+    - ANDROID_VERSION=7.1.1
+
 script: bash travis.sh
 
 after_success:

travis.sh

@@ -7,8 +7,8 @@ if [ -z "$TRAVIS_TAG" ]; then
 else
     echo "Log in to docker hub"
     docker login -u="$DOCKER_USERNAME" -p="$DOCKER_PASSWORD"
-    echo "RUN UNIT TEST, BUILD DOCKER IMAGES AND PUSH THOSE TO DOCKER HUB"
-    bash release.sh all all all $TRAVIS_TAG
+    echo "[Version: $ANDROID_VERSION] RUN UNIT TEST, BUILD DOCKER IMAGES AND PUSH THOSE TO DOCKER HUB"
+    bash release.sh all $ANDROID_VERSION all $TRAVIS_TAG
     echo "Log out of docker hub"
     docker logout
 fi