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Git studynotes
- 1. git A Study Note Richard Kuo
- 2. What? Why? How? When? 3/1/13 Crea3ve Common BY-‐AS-‐NC 2
- 3. What is git? • Free open source soDware version control tool. • Created by Linus Torvalds In 2 weeks for managing Linux code. • GitHub: soDware hos3ng site -‐ On 16 January 2013, GitHub announced it had passed the 3 million users mark and now hos3ng more than 5 million repositories. 3/1/13 Crea3ve Common BY-‐AS-‐NC 3
- 4. Why git? • Distributed. • Full history repository. • No network requirement, work offline at anywhere and any3me. • Small foot print and fast. • Flexible, accommodate any workflow. • Pseudo industry standard. 3/1/13 Crea3ve Common BY-‐AS-‐NC 4
- 5. Object Database http://www.youtube.com/watch?v=GYnOwPl8yCE 3/1/13 Crea3ve Common BY-‐AS-‐NC 5
- 6. 4 Object Types • Blob (content) • Tree (directory lis3ngs) -‐ Header -‐ Header -‐ File content. -‐ For each file or directory -‐ File permission -‐ Object type -‐ SHA-‐1 -‐ File / Directory name • Commit (snapshots) Tag (meta-‐data of a commit) • – Author informa3on – Name – Commicer informa3on – Tagger – Commit message – Date – SHA-‐1 of any parent commits – SHA-‐1 of the tree that the – Commit hash commit points to – … 3/1/13 Crea3ve Common BY-‐AS-‐NC 6
- 7. GIT Object Model 3/1/13 Crea3ve Common BY-‐AS-‐NC 7
- 8. References 3/1/13 Crea3ve Common BY-‐AS-‐NC 8
- 9. Git Commit 3/1/13 Crea3ve Common BY-‐AS-‐NC 9
- 10. Scenario 3/1/13 Crea3ve Common BY-‐AS-‐NC 10
- 11. 3/1/13 Crea3ve Common BY-‐AS-‐NC 11 hcp://www.technovelty.org/linux/git-‐workflow.html
- 12. GIT Expressed in UML hcp://utsl.gen.nz/talks/git-‐svn/intro.html 3/1/13 Crea3ve Common BY-‐AS-‐NC 12
- 13. 3 + 1 Areas 3/1/13 Crea3ve Common BY-‐AS-‐NC 13
- 14. Important Concepts • Manipulate graph. • Track contents, not files. • Object name is hash code which generated from its content. • Immutable objects, move reference pointers. 3/1/13 Crea3ve Common BY-‐AS-‐NC 14
- 15. Demo
- 16. 3/1/13 Crea3ve Common BY-‐AS-‐NC 16 Credit: hcp://nvie.com/posts/a-‐successful-‐git-‐branching-‐model/
- 17. 3/1/13 Crea3ve Common BY-‐AS-‐NC 17
- 18. 3/1/13 Crea3ve Common BY-‐AS-‐NC 18
- 19. References • Books and tutorials – Git Immersion – Cheat Sheet – A Visual Git Reference • Workflow – Commit policy – A successful Git branching model • Credit: Patrick Hogan for Images for slides 5, 7, 8, 10 about objects database. 3/1/13 Crea3ve Common BY-‐AS-‐NC 19
- 20. Backup Slides
- 21. hcps://raw.github.com/macharrison/Git-‐Supervisual-‐Cheatsheet/master/gitcheat.png 3/1/13 Crea3ve Common BY-‐AS-‐NC 21
- 22. 3/1/13 Crea3ve Common BY-‐AS-‐NC 22