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Contributing to dSS development
The document discusses the tools and processes for contributing to the development of the dSS platform. It outlines the use of Redmine for project management, Git and Gitorious for version control and code hosting, Hudson for continuous integration, and the open source licensing under GPL. It provides instructions for getting started with development by registering on Gitorious and following the workflow of implementing changes, requesting merges, and code reviews.
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Contributing to dSS development
- 1. aizo Contributing to dSSdevelopment Zurich, 13.01.2010, Johannes Winkelmann
- 2. Outline • Tools • Licensing • Development process • Getting started 01/14/10 2
- 3. Development infrastructure Redmine (Planning, Wiki, Issue tracking) Hudson Gitorious Git DVCS Continuous git hosting Integration 01/14/10 3
- 4. Redmine Redmine project managementweb application • Issue tracking • Release Planning • Wiki Open Source https://developer.digitalstrom.org/redmine 01/14/10 4
- 5. Redmine - Demo • Overview • Project planning • Issues • Wiki • Git browser 01/14/10 5
- 6. git Version ControlSystem • Distributed Version Control System (DVCS) • Powerful branching and merging • Fast! • Powerful tools • Open Source • Via https://gitorious.digitalstrom.org (coming next week) 01/14/10 6
- 7. Centralized VCS Central repository Commit Checkout Local checkout 01/14/10 7
- 8. Distributed VCS –Scenario #1 Master repository Push Clone Local Local commit repository 01/14/10 8
- 9. Distributed VCS –Scenario #2 2. Pull Master User repository repository 1. Push Clone Local Local commit repository 01/14/10 9
- 10. Distributed Version Control Propertiesof a DVCS: • User checks out the whole code history to a local repository • Changes can be shared easily between repositories • No need to create user accounts on a central server, which allows potential contributors to immediately start development without action from the project 01/14/10 10
- 11. git tool demo •git gui commit tool • gitk history browser 01/14/10 11
- 12. gitorious git projecthosting • gitorious git hosting web application • Easy way to follow ”official” development tree • Allows developers to − fork the code to implement new features − request merging of these new features − Review code and add inline comments on merge requests 01/14/10 12
- 13. gitorious (continued) • Hostedby digitalSTROM.org, allowing contributors to start developing right away • Provides a well defined workflow for contributors and core development team • Open Source • https://gitorious.digitalstrom.org (coming next week) 01/14/10 13
- 14. gitorious demo • Overview •Project timeline • Merge request 01/14/10 14
- 15. Hudson – ContinuousIntegration Engine • Hudson Continuous Integration engine • Verifies builds after every git commit • Ensures compilation and unit test success • Will soon also include cross compiler builds • Open Source 01/14/10 15
- 16. Hudson demo • Build overview • Project • Job details • Build time and trends 01/14/10 16
- 17. dSS Licensing Dual licensed: •Open Source release under the GNU General Public License 3 (GPL) • Closed Source dS.org license for dS.org alliance members Contributor License Agreement • Defines licensing of features and bugfixes submitted via gitorious 01/14/10 17
- 18. GPL Release Implications ofreleasing the software under the GPL: • We make the source code available for everyone to read • The code may be reused as long as the derivate work is released under the same terms 01/14/10 18
- 19. Why Open Source Reasonsfor the Open Source release • Transparency / Privacy considerations • Avoid vendor lock in • Improved security thanks to more eyes looking at the code • Enabling contributors to implement ideas we could not think of ourselves 01/14/10 19
- 20. Why the duallicensing • Open source is not established everywhere yet • Allows integration with proprietary software systems 01/14/10 20
- 21. Development Process Contributor • Registeron https://gitorious.digitalstrom.org • Clone dss project in gitorious • Implement changes as wanted • Push changes back to gitorious • Request merge in gitorious Core developer • Review merge request • Provide feedback, merge into mainline or reject 01/14/10 21
- 22. Getting started https://developer.digitalstrom.org/redmine • Sourcecode access • Redmine (Wiki, Issue tracking) • Mailling lists https://gitorious.digitalstrom.org (coming soon) • Git hosting Mailing lists: • dss-announce@forum.digitalstrom.org • dss-developer@forum.digitalstrom.org 01/14/10 22
- 23. aizo Thanks for your interest...we're looking forward to your contributions!