add code analysis step

.drone.yml

@@ -35,6 +35,26 @@ steps:
           - yarn test:coverage
           - test -f coverage/lcov.info
 
+
+    - name: code-analysis
+      when:
+        event:
+          - push
+      image: sonarsource/sonar-scanner-cli:latest
+      commands:
+        - |
+          test -f coverage/lcov.info
+          SONAR_ARGS="-Dsonar.projectKey=$SONAR_PROJECT_KEY -Dsonar.host.url=$SONAR_INSTANCE_URL -Dsonar.token=$SONAR_LOGIN_KEY -Dsonar.sources=src -Dsonar.tests=tests -Dsonar.test.inclusions=tests/**/*.{test,spec}.{ts,tsx,js,jsx} -Dsonar.javascript.lcov.reportPaths=coverage/lcov.info -Dsonar.working.directory=/tmp/.scannerwork"
+          sonar-scanner $SONAR_ARGS
+      environment:
+        SONAR_USER_HOME: /tmp/.sonar
+        SONAR_PROJECT_KEY:
+          from_secret: sonar_project_key
+        SONAR_INSTANCE_URL:
+          from_secret: sonar_instance_url
+        SONAR_LOGIN_KEY:
+          from_secret: sonar_login_key
+
 ---
 kind: pipeline
 type: docker