[CI]try optimize build

.gitlab-ci.yml

@@ -12,7 +12,7 @@ stages:
   - build
   - test
 
-ci_style:
+style_job:
   stage: style
   script:
     - export JAVA_TOOL_OPTIONS=-Dfile.encoding=UTF8
@@ -20,16 +20,20 @@ ci_style:
     - java -jar checkstyle.jar -c CheckStyle.xml `find src/ -name "*.java"`
     - java -jar checkstyle.jar -c CheckStyle.xml `find test/src/ -name "*.java"`
 
-ci_build:
+build_job:
   stage: build
+  dependencies:
+    - style_job
   script:
     - export JAVA_TOOL_OPTIONS=-Dfile.encoding=UTF8
     - eval echo "~$USER"
     - ant clean
     - ant build
 
-ci_test:
+test_job:
   stage: test
+  dependencies:
+    - build_job
   script:
     - export JAVA_TOOL_OPTIONS=-Dfile.encoding=UTF8
     - ant clean build TestBasicLog