ci(travis): Update Travis CI configuration for new paramedic (#478)

* Update Travis CI configuration for new paramedic

* remove wrong ADDITIONAL_TESTS_DIR

* Update .travis.yml

* remove failing platform
diff --git a/.travis.yml b/.travis.yml
index 3b83eac..6bed4f2 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,12 @@
+# This Travis configuration file is built after a Cordova Paramedic 
+# specific template with minimal modifications and adaptations:
+# https://github.com/apache/cordova-paramedic/blob/master/.travis.yml
+
 sudo: false
 
 addons:
   jwt:
+    # SAUCE_ACCESS_KEY
     secure: TZ88IEvAw1bsWPWxvDzXdpi2NK0i3PN4hG15+vDpIt6wXGVPknjxuXWJeLj7TqBpAIvP7XDfS8ZvHVPLe7fe8oOchZPLuiDw9VVIk6cnHjE6wpoavdGc/1mDJ3Bi4PDcHwRUr5ng5spYQqqlTwcECkH/q7iPgudiFM6rlOlGRyA=
 
 env:
@@ -12,9 +17,14 @@
     - ANDROID_BUILD_TOOLS_VERSION=28.0.3
 
 language: node_js
-node_js: 6  
+node_js: 6
 
-# anchor/alias: https://medium.com/@tommyvn/travis-yml-dry-with-anchors-8b6a3ac1b027
+# yaml anchor/alias: https://medium.com/@tommyvn/travis-yml-dry-with-anchors-8b6a3ac1b027
+
+_ios: &_ios
+  os: osx
+  osx_image: xcode10.2
+
 _android: &_android
   language: android
   os: linux
@@ -31,24 +41,23 @@
 
 matrix:
   include:
-    # # one local test, without saucelabs
-    # - env: PLATFORM=local
-    #   os: osx
-    #   osx_image: xcode9
+    # local tests, without saucelabs
+    - env: PLATFORM=local/browser
+      <<: *_ios
+    - env: PLATFORM=local/ios-10.0
+      <<: *_ios
 
     # many tests with saucelabs
-
     - env: PLATFORM=browser-chrome
     - env: PLATFORM=browser-firefox
     - env: PLATFORM=browser-safari
     - env: PLATFORM=browser-edge
 
-    - env: PLATFORM=ios-10.0
-      os: osx
-      osx_image: xcode9
-      
-    - env: PLATFORM=android-4.4
-      <<: *_android
+    - env: PLATFORM=ios-11.3
+      <<: *_ios
+    - env: PLATFORM=ios-12.0
+      <<: *_ios
+
     - env: PLATFORM=android-5.1
       <<: *_android
     - env: PLATFORM=android-6.0
@@ -61,24 +70,48 @@
       <<: *_android
     - env: PLATFORM=android-8.1
       <<: *_android
+    - env: PLATFORM=android-9.0
+      <<: *_android
 
 before_install:
-- rm -rf ~/.nvm && git clone https://github.com/creationix/nvm.git ~/.nvm && (cd ~/.nvm
-  && git checkout `git describe --abbrev=0 --tags`) && source ~/.nvm/nvm.sh && nvm
-  install $TRAVIS_NODE_VERSION
-- node --version
-- if [[ "$PLATFORM" =~ android ]]; then gradle --version; fi
-- if [[ "$PLATFORM" =~ ios ]]; then npm install -g ios-deploy; fi
-- if [[ "$PLATFORM" =~ android ]]; then echo y | android update sdk -u --filter android-22,android-23,android-24,android-25,android-26,android-27;
-  fi
-- git clone https://github.com/apache/cordova-paramedic /tmp/paramedic && pushd /tmp/paramedic
-  && npm install && popd
-- npm install -g cordova
+  # manually install Node for `language: android`
+  - if [[ "$PLATFORM" =~ android ]]; then nvm install $TRAVIS_NODE_VERSION; fi 
+  - node --version
+  - if [[ "$PLATFORM" =~ android ]]; then gradle --version; fi
+  - if [[ "$PLATFORM" =~ ios ]]; then npm install -g ios-deploy; fi
+  - npm install -g cordova
+  # install paramedic if not running on paramedic repo
+  - if ! [[ "$TRAVIS_REPO_SLUG" =~ cordova-paramedic ]]; then npm install -g github:apache/cordova-paramedic; fi 
 
 install:
-- npm install
+  - npm install
 
+before_script:
+  - |
+    if [[ "$TRAVIS_REPO_SLUG" =~ cordova-paramedic ]]; then 
+      # when used in the cordova-paramedic repo
+      TEST_COMMAND="npm run eslint"
+      PARAMEDIC_PLUGIN_TO_TEST="./spec/testable-plugin/"
+      PARAMEDIC_COMMAND="node main.js"
+    else 
+      # when used in any other (plugin) repo
+      TEST_COMMAND="npm test"
+      PARAMEDIC_PLUGIN_TO_TEST=$(pwd)
+      PARAMEDIC_COMMAND="cordova-paramedic"
+    fi
+  - PARAMEDIC_BUILDNAME=travis-$TRAVIS_REPO_SLUG-$TRAVIS_JOB_NUMBER
+  - |
+    echo "Variables now are set to:"
+    echo "TEST_COMMAND=$TEST_COMMAND"
+    echo "ADDITIONAL_TESTS=$ADDITIONAL_TESTS"
+    echo "PARAMEDIC_COMMAND=$PARAMEDIC_COMMAND"
+    echo "PLATFORM=$PLATFORM"
+    echo "PARAMEDIC_PLUGIN_TO_TEST=$PARAMEDIC_PLUGIN_TO_TEST"
+    echo "PARAMEDIC_BUILDNAME=$PARAMEDIC_BUILDNAME"
 script:
-- npm test
-- node /tmp/paramedic/main.js --config pr/$PLATFORM --plugin $(pwd) --shouldUseSauce
-  --buildName travis-plugin-inappbrowser-$TRAVIS_JOB_NUMBER
+  - $TEST_COMMAND
+  - if [[ "$ADDITIONAL_TESTS_DIR" != "" ]]; then
+      cd $ADDITIONAL_TESTS_DIR && npm install && npm test;
+    else 
+      $PARAMEDIC_COMMAND --config ./pr/$PLATFORM --plugin $PARAMEDIC_PLUGIN_TO_TEST --buildName $PARAMEDIC_BUILDNAME; 
+    fi