Let's talk Git

Version Control usage in developers' life. Git fundamentals and basic commands.

Transcript

1. Darshan Parikh @activesince93 Let’s talk Git!
2. How do you say? - जीट - गीट
3. Legends will say! - जीत - गीत
5. Git is a Version Control System (VCS)
7. Version Control is a system that records changes to a file or set of files over time so that you can recall specific versions later.
8. Why VCS?
9. I am a champion of my own code! - I Create files - I Save them - I Edit them - I Save them again!
10. Working in a team - I create files - You create files - Someone else creates files - Save them - I edit my files - You edit my files - Someone else edits your files - Save them again!
11. Problems? ‍♂ - How do we keep the historical data? - More and more folders (takes a lot of space) - How do we merge? - Manual line by line patching (takes a lot of time) - Switch back to the previous version? - Save current and go back to history (again, time and space issues)
12. Version Control is a system that records changes to a file or set of files over time so that you can recall specific versions later.
13. Two types - Centralized VCS - Distributed VCS
14. Darshan’s working directory Centralized Version Control Tapan’s working directory Moses’ working directory Main repository
15. Centralized Version Control Systems - Concurrent Versioning System (CVS) - Subversion (SVN) - Team Foundation Version Control (TFVC)
16. Main repository Darshan’s repository Distributed Version Control Tapan’s repository Moses’ repository Darshan’s working directory Tapan’s working directory Moses’ working directory
17. Distributed Version Control Systems - Git - Mercurial (hg)
18. Why Distributed VCS izz good? - Open source - Scalable - Fast (No need of network calls all the time) - Local branching - Easy merging - Snapshots instead of difference (Can revert back easily)
19. Let’s talk Git!
20. Linus Torvalds
22. git log - Open source project - Created by Linus Torvalds - Released in April 2005 - Maintained by Junio Hamano - Repository: https://git.kernel.org/pub/scm/git/git.git/
23. Source: GitHub
24. Why me? I am not a developer!
25. 25 Yes, Designers can use git too!
26. Your Daily Tasks - Create things - Save things - Edit things - Save things again!
27. Things you should know (Git vocabulary)
28. Vocab - Repository (repo) = Project - Working Directory = Your existing work environment - Commit = Git’s way of saving things - Staging = Getting things ready - Remote = Some git repository not on your machine (ex. GitHub)
30. - git init How do I setup git for my project?
32. - git status Review changes
33. - git diff Review specific changes
35. - git checkout -- <file_name> - git checkout -- . Revert changes of working directory
37. Add files staging area - git add - git add <file_name> - git add . // adds all the files
39. - git status Review staged changes
40. - git diff --staged Review specific changes
41. - git reset <file_name> // reset specific file - git reset . // reset all the files Revert staged files
43. Commit the changes - git commit // commit after files staged - git commit -a // add files to staging and commit - git commit -a -m “<commit_message>” // add commit message
45. - git log Review the commits
46. - git log - git log --oneline One line commits
47. - git log - git log --oneline - git log --oneline --graph One line commits with graph
49. Branches
50. “Version control is a simple concept but its gets complicated by the work modes. People working in parallel on the same file at the same time.”
51. More interesting things - The mind behind Linux | Linus Torvalds - Tech Talk: Linus Torvalds on git
52. Questions?
53. Darshan Parikh @activesince93 Thank you!