copying the Travis CI setup

.github/workflows/ci.yml

@@ -29,6 +29,7 @@ jobs:
       - run: >
           mvn
           install
+          jacoco:prepare-agent
           --define jacoco.skip=false
           --define maven.javadoc.skip=true
           --define skipTests=true
@@ -38,19 +39,16 @@ jobs:
       # https://docs.travis-ci.com/user/languages/java/#maven-default-script-command
       # tests are interdependent and require a specific order
       # running in parallel causes some tests to fail
-      # - run: mvn test -B # -T 1C
+      - run: mvn test -B # -T 1C
 
       - env:
           CI_NAME: github
         run: >
           mvn
-          jacoco:prepare-agent
-          test
           jacoco:report
           jacoco:report-aggregate
           verify
           coveralls:report
-          --no-transfer-progress
           --define jacoco.skip=false
           --define repoToken=${{ secrets.GITHUB_TOKEN }}
           --define pullRequest=${{ github.event.number }}

.travis.yml

@@ -1,9 +1,24 @@
 # faster builds
 git:
   depth: 3
+  quiet: true
   submodules: false
 sudo: false
 dist: trusty
 language: java
 before_install:
-  - echo "MAVEN_OPTS='-Xmx2g'" > ~/.mavenrc
+  - echo "MAVEN_OPTS='-Xmx2g'" > ~/.mavenrc
+cache:
+  directories:
+    - $HOME/.m2
+install: >
+  mvn
+  install
+  jacoco:prepare-agent
+  --define jacoco.skip=false
+  --define maven.javadoc.skip=true
+  --define skipTests=true
+  --batch-mode
+  --show-version
+after_success:
+  - mvn jacoco:report jacoco:report-aggregate verify coveralls:report --define jacoco.skip=false