Continuous Updating

How do you keep track of your libraries? How do you keep you software projects up-to-date?

Transcript

1. #ContinuousUpdating
   @RobertReiz
   

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2. 100 libraries per
   project in avg.
   

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3. How do you keep track
   of your LIBRARIES?
   

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4. How many DEPENDENCIES do
   you have in your project?
   

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5. Which LICENSES are
   your dependencies
   using?
   

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6. You don’t know ?
   

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7. Requirements
   Analysis
   Design
   Coding
   Testing
   Accepting
   15 years ago we used to work with the WATERFALL MODEL
   

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8. But today we are AGILE
   

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9. Everything the Waterfall Model used
   to execute in one year ...
   ... we nowadays execute in 2 weeks!
   

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10. The way we develop software
    today totally changed!
    

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11. Being AGILE got us
    CONTINUOUS Testing
    CONTINUOUS Refactoring
    CONTINUOUS Integration
    CONTINUOUS Delivery
    

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12. But what about
    CONTINUOUS Updating
    

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13. How do you update your
    LIBRARIES ?
    

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14. You don’t ?
    

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15. Because you never touch a
    running system, right ?
    

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16. So you wanna work
    with COBOL! Right?
    Enjoy!
    

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17. If you can't fly then run,
    if you can't run then walk,
    if you can't walk then
    crawl,
    but whatever you do
    you have to keep moving
    forward.
    Martin Luther King Jr.
    

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18. Core committers don’t release
    new versions just for fun!
    

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19. • Bug Fixes
    • Security Fixes
    • Speed & Memory optimisation
    • New Features
    They always have good reasons
    

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20. How do you ensure that new
    versions don’t break the system?
    

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21. Semantic Versioning
    Migration Paths
    Continuous Testing
    

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22. http://semver.org/
    

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23. 1.MAJOR version when you make incompatible API changes
    2.MINOR version when you add functionality in a backwards-compatible manner
    3.PATCH version when you make backwards-compatible bug fixes.
    MAJOR.MINOR.PATCH
    

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24. 2.0.0
    2.1.0
    2.1.1
    2.1.2
    3.0.0
    Major
    Minor
    Patch
    Patch
    Major
    

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25. Always follow the
    MIGRATION PATH
    

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26. Many small steps are
    better than one big step
    You can do SMALL MIGRATIONS on the fly.
    BIG MIGRATIONS are risky and expensive.
    If you miss versions, you miss migration paths, too.
    And that leads to TROUBLE!
    

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27. 1 2 3 4
    migrate migrate migrate
    big migration … expensive!
    Don’t miss migration paths!
    on the fly on the fly on the fly
    

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28. Always run your TESTS against new versions
    

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29. Another reason for being current
    

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30. Do you really believe
    those young talents
    wanna work with
    COBOL?
    Or other OLD SHIT?
    

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31. Tracking versions is a pain!
    

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32. SOFTWARE LIBRARIES
    are NOT like iPhone
    Apps!
    

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33. 100 libraries per
    project in avg.
    After 2 weeks the first libraries are OUT-DATED!
    

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34. Developers are missing critical BUG FIXES
    and important UPDATES!
    

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35. Manually checking for
    updates is no fun!
    It cost TIME & MONEY!
    NOBODY WANTS TO DO IT!
    

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36. So, how do you wanna solve this
    PROBLEM
    

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37. You have to
    AUTOMATE
    

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38. You need a TOOL for that!
    

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39. GemNotifier Gemnasium VersionEye
    Languages Ruby
    Ruby, Node.JS,
    Python
    22 Languages
    GitHub no yes yes
    Bitbucket no no yes
    File upload no no yes
    URL parsing no no yes
    Changelogs no yes in progress
    Security no yes in progress
    Licenses no no yes
    API no no yes
    

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40. www.VersionEye.com
    Keeps an eye on more than 550K open source libraries!
    Supports 22 Languages and 10 Package Managers!
    

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41. https://www.versioneye.com/api
    API
    

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42. https://www.versioneye.com/statistics
    

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43. https://www.versioneye.com/statistics
    

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44. @RobertReiz
    Questions?
    

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