The Values of Open Source

source{d} 's mission is to improve Developer Experience with Machine Learning. This means we retrieve analyze large datasets of source code, with source code, to help others write code.

Code, code, code ... and all fo this code is open source!

In this talk we cover how we benefit from the existing Open Source community, while contributing back to it and protecting our Intellectual Property.

Transcript

1. The values and challenges of Open Source at source{d}
   

   View Slide

2. VP of Developer Relations
   francesc@sourced.tech
   @francesc
   campoy
   

   View Slide

3. Agenda
   source{d} and
   Open Source
   Our MIssion
   - ML on Code
   - Code as Data
   Open Core
   Open Source
   Benefitting from
   Open Source
   Cooperation
   Contributions
   Protecting with
   Open Source
   Copyleft
   Licenses
   MIT, Apache v2, GPLs
   Q&A
   

   View Slide

4. source{d} and Open Source
   

   View Slide

5. source{d} and Open Source
   our mission
   Improving the Developer Experience through
   Machine Learning
   

   View Slide

6. source{d} and Open Source
   our mission
   Requires large datasets
   Results in trained models
   Examples:
   - Bug prediction
   - Automated Code Review
   ML on Code
   Large software repositories
   Source code *and* history of revisions
   Extracting metrics - Business Intelligence
   SQL, GraphQL, REST interfaces
   Code as Data
   

   View Slide

7. ML on Code
   Code as Data
   Code
   

   View Slide

8. source{d} and Open Source
   Open Core
   Open
   Source
   Core
   Tools & Services
   

   View Slide

9. benefitting from Open Source
   

   View Slide

10. benefitting from Open Source
    the tools we use
    

    View Slide

11. benefitting from Open Source
    contributing back
    go-git
    Git library for Go
    Similar to jgit or gitlib
    +2.7k stars on GitHub
    enry
    Language Classifier
    Higher performance &
    accuracy than GitHub’s
    linguist
    

    View Slide

12. benefitting from Open Source
    contributing back
    go-git
    Git library for Go
    Similar to jgit or gitlib
    +2.7k stars on GitHub
    enry
    Language Classifier
    Higher performance &
    accuracy than GitHub’s
    linguist
    babelish
    Universal Code Parser
    Universal ASTs
    Easily extensible
    

    View Slide

13. benefitting from Open Source
    contributing back
    go-git
    Git library for Go
    Similar to jgit or gitlib
    +2.7k stars on GitHub
    enry
    Language Classifier
    Higher performance &
    accuracy than GitHub’s
    linguist
    babelish
    Universal Code Parser
    Universal ASTs
    Easily extensible
    gitbase
    SQL interface for git
    Integrates go-git, enry,
    babelfish, and more
    Code as Data
    

    View Slide

14. benefitting from Open Source
    contributions to our projects
    

    View Slide

15. benefitting from Open Source
    “Open Sourcing our libraries makes
    better for everyone.”
    contributions to our projects
    

    View Slide

16. a quick history of Open Source
    

    View Slide

17. a quick history of Open Source
    Richard Stallman
    

    View Slide

18. a quick history of Open Source
    Xerox 9700
    

    View Slide

19. a quick history of Open Source
    Free Software Foundation
    

    View Slide

20. a quick history of Open Source
    GNU/Linux
    

    View Slide

21. protecting with open source
    

    View Slide

22. protecting with open source
    GNU General Public License v3 (GPL)
    source: tldrlegal.com
    

    View Slide

23. Viral Licensing
    

    View Slide

24. Apollo / Gemini
    

    View Slide

25. protecting with open source
    GNU Affero General Public License v3 (AGPL)
    source: tldrlegal.com
    

    View Slide

26. protecting with open source
    Apache License v2
    source: tldrlegal.com
    

    View Slide

27. go-git
    

    View Slide

28. protecting with open source
    Open Data Commons Open Database License (ODbL)
    source: tldrlegal.com
    

    View Slide

29. Public Git Archive
    

    View Slide

30. protecting with open source
    Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)
    source: tldrlegal.com
    

    View Slide

31. Awesome Machine Learning On Source Code
    

    View Slide

32. protecting with open source
    MIT License
    source: tldrlegal.com
    

    View Slide

33. blog.sourced.tech
    

    View Slide

34. Checking licenses
    

    View Slide

35. View Slide

36. protecting with open source
    Developer Certificate of Origin
    This agreement states three things:
    1. you offer the changes under the same license agreement as the project, and
    2. you have the right to do that,
    3. you did not steal somebody else’s work.
    ➜ git commit -s -m "adding some feature"
    ➜ git log -n 1 | cat
    commit 2cbd480cc1ea29c8e8193637c73eeb7ab92d0f86
    Author: Francesc Campoy
    adding some feature
    Signed-off-by: Francesc Campoy
    

    View Slide

37. Review
    source{d} and
    Open Source
    Our MIssion
    - ML on Code
    - Code as Data
    Open Core
    Open Source
    Benefitting from
    Open Source
    Cooperation
    Contributions
    History of Free
    Software
    Protecting with
    Open Source
    Copyleft
    Licenses
    MIT, Apache v2, GPLs
    Q&A
    That’s now!
    

    View Slide

38. Q&A
    

    View Slide

39. References
    References
    ● sourced.tech / github.com/src-d
    ● tldrlegal.com
    ● The AGPL | MongoDB
    ● GNU Affero General Public License- GNU Project - Free Software Foundation
    ● What is Copyleft? - GNU Project - Free Software Foundation
    ● Why Open Source Misses the Point of Free Software - GNU Project - Free Software Foundation
    ● The Cathedral and the Bazaar - Wikipedia
    

    View Slide

40. Francesc Campoy
    francesc@sourced.tech
    @francesc
    campoy
    

    View Slide