Basic Principles of Git

1. Basic Principles of Git
Vo Huy Phuong

2. Basic Principles of Git
• What is Git
• Basic Operation with Git and How Git organize
data.
• What is Branch and basic operation with branch
• Repository and Remote Branch

3. What is Git
• What is Version Control System
– System that record the changes of a file or set of
file overtime.
• How many kind of Version Control system:
– Centralized Version Control System
– Distributed Version Control System
• Git and SourceTree

4. Centralize Version Controll System

5. Distributed Version Controll System

6. What is Git
• Git is distributed Version Control System
• Provide a rich, full command line for user to
manipulate data.
• SourceTree is application, provide a visual
interface for user to do with Git system.

7. Basic Operation and How Git organize
data
• Organize data into a three State:
– Git directory(repository)
– Working Directory
– Stage Area

8. How Git organize data

9. How Git organize data
• How Repository organize data
– Organize data into Tree
– Has many leafs(commit object) that link together
– Each commit has a snapshot of file/set of file that
changed
• An HEAD pointer to indicate the current status
we are on
• HEAD pointer will move forward if we commit

10. How Repository organize data

11. How Repository organize data

12. How Repository organize data

13. Basic Operation
• Some basic operation
– Git Add : add file to State area
– Git Checkout : reset the changed file in Working
area
– Git Reset : reset HEAD to specific commit
– Git Status : view the status of Working Area, and
State Area

14. Basic Operation
• Some basic operation
– Git rm : deleted a file from repository
– Git Commit: create the commit obj from the State
Area..and update Tree
– Git mv : move file from one location to another
location
– Git Log: show history in repository

15. What is Branch and basic Operation
with Branch
• Branch is one part of Git Tree
• Permit User to work independently with
another branch
• Branch is actually a movable pointer, that can
move forward or downward commit object in
Git Tree

16. How Repository organize data

17. What is Branch and basic Operation
with Branch

18. What is Branch and basic Operation
with Branch
• Basic Operation with branch
– Git checkout : create or change branch
– Git merge : merge one branch with another
branch

19. Basic Merge in Branch

20. Basic Merge in Branch

21. Basic Merge Conflict

22. Repository
• Basic Operation with repository
– Git fetch : Synchronize local database with server
database
– Git clone : create new local database and create
working copy for all file

23. Remote Branch
• Remote Brach is movable pointer that represent
the current status of this branch on server
• Git has difference pointer for one branch:1 for
remote branch and 1 for local branch
• Operation in Branch:
– Git merge : merge one branch with another branch
– Git pull : fetch one branch and merge local branch
with remote branch
– Git Push : push branch data to remote repository

24. Remote Branch

25. Remote Branch

26. Basic Principles in Git
• Reference : http://git-scm.com/book