MageXtrem_Deployment
MageXtrem_Deployment is a module for Magento 1.x providing git deployment via webhook.
This module depends of MageXtrem_Utils module which is included, see here.
First you'll need to setup SSH keys and clone your repository on your remote server but also defining a webhook in your bitbucket/github project (follow this tutorial).
Warning, don't forget to fill correct pathes (repository directory, web root directory and git binary path) and branch name under System > Configuration > MageXtrem > Development > Deployment.
A type is defined in configuration to decide if the checkout should be done via controller or cron.
Also log file is located at <magento_root>/var/log/magextrem/deployment.log and email addresses can be set in configuration for alerting.
This module has been inspired by git-auto-deploy.
Resources for bitbucket/github API :