Git: auto pull from repository?

Question

Is there any way to set up git such that it listens for updates from a remote repo and will pull whenever something changes? The use case is I want to deploy a web app using

Answer 1

There are continuous integrations programs like Jenkins or Bamboo, which can detect commits and trigger operations like build, test, package and deploy. They do what you want, but they are heavy with dependencies, hard to configure and in the end they may use periodical check against git repository, which would have same effect like calling git pull by cron every minute.