ci-cd using Travis CI

.travis.yml

@@ -20,4 +20,5 @@ deploy:
   script:
   - "./src/main/scripts/cd/release.sh"
   on:
+    tags: true
     branch: master

src/main/scripts/cd/release.sh

@@ -10,15 +10,45 @@ commit_to_develop() {
  git fetch
  git branch -r
  git checkout -B develop 
- git rebase master
+ git rebase $TRAVIS_BRANCH
  git commit --amend -m "++++ Prepare for next development iteration build: $TRAVIS_BUILD_NUMBER ++++"
  git push origin develop
 }
 
-mvn -P release -Darguments=-DskipTests release:prepare release:perform -DautoVersionSubmodules=true -DscmCommentPrefix="$TRAVIS_COMMIT_MESSAGE [skip ci] " -B -V -s travis-settings.xml
+check_next_version() {
+  export NEXT_VERSION=$(echo $TRAVIS_COMMIT_MESSAGE | grep -E -o '[0-9]+\.[0-9]+\.[0-9]+-SNAPSHOT')
+  if [ -n "$NEXT_VERSION" ] ; then
+    export MVN_NEXT_VERSION=-DdevelopmentVersion=$NEXT_VERSION
+  fi
+}
+
+check_tag_for_rc() {
+  export VERSION=$(mvn help:evaluate -Dexpression=project.version -q -DforceStdout)
+  if [ -n "$TRAVIS_TAG" ] ; then
+    RC_VER=$(echo $TRAVIS_TAG | grep -E -o 'RC-?[0-9]+')
+    RC_PREPARE=$(echo $TRAVIS_TAG | grep -o -i 'prepare')
+    if [ -n "$RC_VER" -a -n "$RC_PREPARE" ] ; then
+      export NEW_RC_VERSION=$(echo $VERSION | sed  "s/SNAPSHOT/$RC_VER/g")
+      echo Release candidate: $NEW_RC_VERSION
+      echo *-*-*-*-*-*-*-*-*-*-*-*
+      export MVN_RELEASE_VERSION=-DreleaseVersion=$NEW_RC_VERSION
+      if [ -n "$MVN_NEXT_VERSION" ] ; then
+        export MVN_NEXT_VERSION=-DdevelopmentVersion=$VERSION;
+      fi
+    fi
+  fi
+}
+
+check_next_version
+check_tag_for_rc
+
+mvn -P release -Darguments=-DskipTests release:prepare release:perform $MVN_RELEASE_VERSION $MVN_NEXT_VERSION -DautoVersionSubmodules=true -DscmCommentPrefix="$TRAVIS_COMMIT_MESSAGE [skip ci] " -B -V -s travis-settings.xml
 
 mvn clean
-commit_to_develop
+
+if [ -z "$NEW_RC_VERSION" ]; then 
+  commit_to_develop
+fi
 
 # extends release.sh
 for script_file in $RELEASE_EXEC_FILES; do