You should ask this on the SOA forum.
From the Developer Cloud Service perspective - you can create a build job that will automate this for you every time that you commit the code into Git from JDeveloper.
Two resources to help you:
Basic JDeveloper/SOA integration with DevCS - CI, DevOps and ALM for Oracle SOA Suite with Oracle Developer Cloud Service
Deploying SOA with Maven and DevCS - Maven Plugin for simplified SOA Cloud Deployments from Developer Cloud Service