Remove redundant release stage from GitLab CI configuration.

.gitlab-ci.yml

@@ -72,45 +72,4 @@ sonarcloud_scan:
   only:
     - merge_requests
     - develop
-
-perform_release:
-  stage: release
-  script: |
-    apk add --no-cache git
-    cd ${GITLAB_CLONE_DIR}
-    # config auth
-    git remote set-url origin "https://gitlab-ci-token:${CI_JOB_TOKEN}@gitlab.com/${CI_PROJECT_PATH}.git"
-    git config --global user.name "${GITLAB_USERNAME}"
-    git config --global user.email "${GITLAB_USEREMAIL}"
-    export CI_REF_NAME=${CI_COMMIT_REF_NAME:-release}
-    git checkout -B ${CI_REF_NAME}  
-
-    # build versions
-    CURRENT_VERSION=$(mvn help:evaluate -Dexpression=project.version -q -DforceStdout)
-    RELEASE_VERSION=$(echo $CURRENT_VERSION | sed 's/-SNAPSHOT//')
-    MINOR_VERSION=$(echo $RELEASE_VERSION | awk -F. '{print $2}')
-    NEXT_MINOR_VERSION=$((MINOR_VERSION + 1))
-    NEXT_VERSION=$(echo $RELEASE_VERSION | awk -F. -v minor="$NEXT_MINOR_VERSION" '{print $1"."minor".0-SNAPSHOT"}')
-
-    echo "current version: $CURRENT_VERSION"
-    echo "release version: $RELEASE_VERSION"
-    echo "next version: $NEXT_VERSION"
-
-    # process maven release ...
-    mvn release:clean release:prepare release:perform \
-      -B \
-      -DreleaseVersion=$RELEASE_VERSION \
-      -DdevelopmentVersion=$NEXT_VERSION \
-      -Darguments="-DskipTests" \
-      -DscmCommentPrefix="[ci skip] " \
-      -DpreparationGoals="clean verify"
-
-    # generate release
-    curl --header "PRIVATE-TOKEN: ${GITLAB_API_TOKEN}" \
-         --data "name=v${RELEASE_VERSION}" \
-         --data "tag_name=v${RELEASE_VERSION}" \
-         --data "description=Release v${RELEASE_VERSION} of CloudflareDNS-java" \
-         "https://gitlab.com/api/v4/projects/${CI_PROJECT_ID}/releases"
-
-  only:
-    - /^pre-v\d+\.\d+\.\d+$/
+    - tags