...This is what you should download if you want to go from zero to Git in less than 5 mins. Gitblit WAR is what you should download if you already have a servlet container available that you wish to use. Jetty 6/7/8 and Tomcat 6/7 are known to work. Generally, any Servlet 2.5 or Servlet 3.0 container should work. Gitblit can be used as a dumb repository viewer with no administrative controls or user accounts. Gitblit can be used as a complete Git stack for cloning, pushing, and repository access control.
Gradle‑Git bundles several plugins, most notably org.ajoberstar.grgit—for Gradle projects. It provides a Groovy/JGit wrapper (Grgit) to manage Git operations, plus support modules for GitHub Pages publishing and version-based release workflows.