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True Git
- 2. True Git THE GREAT MIGRATION STEFAN SAASEN • STASH DEVELOPMENT MANAGER • ATLASSIAN • @stefansaasen
- 3. TODO Show of hands Picture with hands/lighter/concert
- 5. Source Control Management 2011 2013 (projected) SVN 2013 Git 2015 (projected)
- 6. Source Control Management 78 20 2011 2013 (projected) SVN 2013 Git 2015 (projected)
- 7. Source Control Management 78 68 41 20 2011 2013 (projected) SVN 2013 Git 2015 (projected)
- 8. Source Control Management 78 70 68 49 41 20 2011 2013 (projected) SVN 2013 Git 2015 (projected)
- 9. Source Control Management 78 70 68 68 49 41 55 20 2011 2013 (projected) SVN 2013 Git 2015 (projected)
- 10. Why am I passionate about this?
- 11. Why am I passionate about this?
- 12. Why Git?
- 14. Branching & Merging fast, cheap and simple
- 15. first class concept Branching & Merging fast, cheap and simple
- 16. first class concept Branching & Merging fast, cheap and simple
- 18. Speed
- 19. Speed git log git status git diff
- 20. git bisect Speed git log git status git diff
- 21. git bisect
- 22. Bad git bisect
- 27. Regression! git bisect Fast graph traversal Fast checkout
- 28. git bisect Speed git log git status git diff
- 29. Enables new features Improves basic features
- 30. Local commits
- 31. Edit & Publish Local commits
- 32. Edit & Publish Local commits Rewrite History
- 33. Edit & Publish Local commits Rewrite History
- 34. Flexibility
- 35. Git does what you are doing today, only better
- 36. SVN
- 39. GIT SVN LABEL TITLE Existing workflows New ways of collaborating
- 40. GIT SVN LABEL TITLE Existing workflows New branch workflows New ways of collaborating
- 41. GIT SVN LABEL TITLE Existing workflows New branch workflows New ways of collaborating
- 42. GIT SVN LABEL TITLE Existing workflows New branch workflows New ways of collaborating
- 43. GIT SVN LABEL TITLE Existing workflows New branch workflows New ways of collaborating
- 50. Git Workflows a-la-carte Rapid Agile Delivery Nicola Paolucci Thursday - 11:15 am Matthew Watson Thursday - 1:15 pm
- 52. So you’ve decided to migrate!
- 54. Inception 1
- 55. Inception • Is git suitable? 1
- 56. Inception • Is git suitable? • Test the conversion 1
- 57. Inception • Is git suitable? • Test the conversion • Identify the repositories that need to be converted 1
- 58. Inception • Is git suitable? • Test the conversion • Identify the repositories that need to be converted • Identify the tools that need to be updated. CI, issue tracking, IDE, scripts and build tools, deployment tools 1
- 59. 1
- 61. Adoption 2
- 62. Adoption • You need to answer: “What’s in it for me” 2
- 63. Adoption • You need to answer: “What’s in it for me” • Make sure tooling is ready and can be used by everyone 2
- 64. Adoption • You need to answer: “What’s in it for me” • Make sure tooling is ready and can be used by everyone • Identify the git champions - they will be thrilled to help 2
- 65. Adoption • You need to answer: “What’s in it for me” • Make sure tooling is ready and can be used by everyone • Identify the git champions - they will be thrilled to help • Don’t expect to win everyone over immediately 2
- 66. 2
- 67. 2 Just text by itself, for impact.
- 69. We’ve got you covered! & Scripts Tutorial & Documentation
- 70. We’ve got you covered! & Scripts Tutorial & Documentation bit.ly/go-dvcs
- 71. 3 git-svn
- 73. Conversion - Preparation 3 Map Authors jdeveloper = John Developer <jd@example.com>
- 74. Conversion - Preparation 3 Map Authors jdeveloper = John Developer <jd@example.com> /tags /trunk /branches Identify SVN repository layout
- 75. Conversion - Initial Clone 3 git svn clone --authors-file=/authors.txt --trunk=/trunk --tags=/tags --branches=/branches
- 76. Conversion - Initial Clone ? 3 git svn clone --authors-file=/authors.txt --trunk=/trunk --tags=/tags --branches=/branches
- 79. Conversion - Sync git svn fetch 3
- 83. Infrastructure first read-only Sync every minute CI Issues IDE 3
- 84. Conversion - Cleanup • Cleanup branches • Remove unused files • Create git tags • Remove commit metadata 3
- 85. Conversion - Cleanup • Cleanup branches • Remove unused files • Create git tags • Remove commit metadata 3
- 90. Other Tools?
- 91. SubGit
- 93. Or are you?
- 94. Collaboration model? Branching model? Just text by itself, for impact.
- 95. + Enterprise
- 99. for the better Workflows will change
- 100. for the better Workflows will change but they don’t have to change on day one!
- 101. This happened in both Confluence and JIRA...
- 103. From SVN like git cherry-pick bae6251 confluence-project-4.0 CONF-1234 master
- 104. From SVN like git cherry-pick bae6251 confluence-project-4.0 CONF-1234 master
- 107. To git branch based workflow confluence-project-4.1 master
- 108. To git branch based workflow confluence-project-4.1 master
- 109. To git branch based workflow confluence-project-4.1 CONF-2345 master
- 110. To git branch based workflow git merge confluence-project-4.1 confluence-project-4.1 CONF-2345 master
- 111. To git branch based workflow confluence-project-4.1 CONF-2345 master
- 112. To git branch based workflow git merge confluence-project-4.1 confluence-project-4.1 CONF-2345 master
- 113. Forks can be useful!
- 116. Forks can be useful! Contributions from outside of the team Sub-Teams
- 117. Conclusion
- 120. “ Subversion (58%) is being threatened by Git (47%) for de facto leadership of the Version Control space. ” ZEROTURNAROUND DEVELOPER PRODUCTIVITY REPORT 2013
- 121. is here to stay
- 122. expands
- 123. migration is a solved problem
- 124. Thank you! STEFAN SAASEN • STASH DEVELOPMENT MANAGER • ATLASSIAN • @stefansaasen