Bitbucket for Slack
Bitbucket offers free source code hosting for Git and Mercurial projects. You can install the Bitbucket Cloud app to manage your code from Slack.
With the Bitbucket Cloud bot for Slack, your team can get contextual information about your code repositories and take action without leaving your channel. Visit the Slack App Directory to install.
Tip: Get the full run-down of Bitbucket Cloud for Slack on Bitbucket’s support pages, and take a look at their blog post.