Git. Transition.
- 1. GIT. TRANSITION. Pavel Grushetzky pavel_grushetzky pagrus_ pagrus pagrus7
- 2. Case study Pros/cons Inside High-level advice Trends Git overview Commands Outside Tools
- 3. CASE STUDY - Early 2009 SOA, ESB, SOAP over JMS, - Big customer/project WSDL 2.0, Agile 2.0, git, OSGi, virtualization… - Challenging requirements
- 4. • Multiple repos • Topic branch model • Interactive rebase • Linear history • Perfect commits • Gatekeeper • Poor GUI tooling (2009) • First-timers *simplified
- 7. Consistent workflow push Would you review? fetch checkout formatting, javadocs rebase –i fixup push How about now? pull
- 8. Consistent workflow push Would you review? fetch checkout formatting, javadocs rebase –i fixup push How about now? pull Conflict
- 9. Continuous integration Distribution and branching are the opposite of integration
- 10. Continuous integration • Build active branches • “Promiscuous integration” • Pull when mainline changes • etc
- 11. Binary content 1 line change => 12kb commit
- 12. Binary content 1 line change => 12kb commit
- 14. • Get experts on the team! • Proven workflow • Peer review • Mentoring • Gatekeeping
- 15. • Short-lived branches • Branch on feature/task • Focused commits • Unit Tests
- 17. Git Benefits • Works offline • Flexible • Reliable & Resilient • Fast, I mean FAST
- 18. “I merge 22k files several times a day, and I get unhappy if merge takes >5 seconds. And all of those 5 seconds are just the downloading of the deltas. The merge itself takes less than half a second.”
- 19. “…it is so fast, you can’t even measure it. That’s creating a branch.”
- 20. “…if you use windows, you can probably measure it” “…it is so fast, you can’t even measure it. That’s creating a branch.”
- 21. Git Benefits • Efficient with text • Handy for local experiments • Works around stupid policies • Makes you stronger =)
- 22. Should I pick GIT or SVN?
- 23. Should I pick GIT or SVN?
- 24. SHOULD I LEARN GIT?
- 25. SHOULD I LEARN GIT?
- 27. Thank you! Questions? Comments? Google “Linus Torvalds git tech talk” “Martin Fowler vcs” And whatever problems you run into…