Azure DevOps provides development collaboration tools including high-performance pipelines, free private Git repositories, configurable Kanban boards, and extensive automated and continuous testing capabilities.
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Bitbucket is a web-based hosting service that supports both Mercurial and Git version control systems. It offers commercial and free accounts. It supports collaboration with unlimited private repos, diff views, CI build integrations, large file storage, pipelines, JIRA and other 3rd party integrations.
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GitHub is a web-based Git or version control repository and Internet hosting service. It offers all of the distributed version control and source code management (SCM) functionality of Git as well as adding its own features. It provides access control and several collaboration features such as bug tracking, feature requests, task management, and wikis for every project.
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r10k provides a general purpose toolset for deploying Puppet environments and modules. It implements the Puppetfile format and provides a native implementation of Puppet dynamic environments.
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Review Board is a feature packed code review tool for multiple SCM systems (like git, bzr, cvs, subversion, etc).
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Free (as in speech and as in beer) software (AGPLv3+) for hosting Git® projects, both public and private.
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