Intro to Git for the Python Hacker

A gentle introduction to git for a python programmer

1. Intro to Git! for Python Hackers! ! ! Mark Allen! mrallen1@yahoo.com! @bytemeorg! http://byte-me.org! https://github.com/mrallen1!
2. Distributed ! Version ! Control! System!
3. Fast! !
4. Tons of features! !
5. Pervasive use in the community!
6. Worst. Interface. Evar.!
7. 1.  Terms and lingo! 2.  Basic workflow! 3.  Topic branches! 4.  Starting and/or contributing to github projects.! 5.  Cool Python stuff!
8. Terms / Lingo http://marklodato.github.com/visual-git-guide/index-en.html!
9. Terms / Lingo http://marklodato.github.com/visual-git-guide/index-en.html!
10. Basics subversion! ! $ svn co \! https://example.com! $ vim myfile.py! $ svn status! $ svn diff! $ svn ci -m'My commit'! git! ! $ git clone \! https://example.com! $ vim myfile.py! $ git status! $ git add -- myfile.py! $ git diff! $ git commit \! -m'My commit'! $ git push!
11. Basics ! $ git clone https://example.com! $ vim myfile.py! $ git diff! $ git add myfile.py ! $ git status! $ git commit -m'My commit'! $ git push origin master! origin   Where   What  
12. I want to...! !create a new local repository! $ mkdir myproject! $ cd myproject! $ git init! Basics
13. I want to...! ! ! !copy a remote repository! ! $ git clone https://example.com! $ git clone git@example.com:project.git! Basics
14. I want to...! ! ! !stage a file for a commit! ! $ git add -- myfile.py! Basics
15. I want to...! create a commit! ! $ git commit! Basics
16. I want to...! add to the last commit! ! $ git commit --amend! Basics
17. I want to...! ! ! diff against a commit! ! $ git diff! $ git diff HEAD^! $ git diff HEAD~4! $ git diff 1bc38 -- myfile.py! Basics
18. I want to...! ! ! ! see commit history! ! $ git log! Basics
19. I want to...! ! ! !update a local repository! ! $ git pull! Basics
20. I want to...! give a commit a memorable reference! ! $ git tag mytag 1bec3! $ git push --tags! $ git diff mytag -- a.py! Basics
21. I want to...! add a remote storage location! ! $ git remote add origin https://example.com! ! -also-! ! $ git remote rm origin! Basics
22. I want to...! push my local work to a remote location! ! $ git push! $ git push -u origin foo! Basics
23. I want to...! temporarily save my work
 and work on something else! $ git stash! # ...! $ git stash pop! Basics
24. Git commands ! •  are (mostly) scripts! •  bash, python, perl! •  you can extend!
25. Topic branches! ! •  What are they?! •  Why are they useful?! •  How do you use them?! Topic branches
26. $ git branch rt14322! $ git checkout rt14322! -or-! $ git checkout -b rt14322! ...! Topic branches
27. $ git checkout master! $ git merge rt14322! Topic branches
28. GitHub
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30. GitHub https://github.com/signup/free!
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59. GitHub Congratulations, your pull request was submitted!! ! Things to do now:! • Relax! • Have a tasty beverage! • Enjoy the accolades of a grateful Python community!
60. Augh! My library is in CVS or SVN!! •  I'm sorry for your pain.! •  Github has tools and guides to help you migrate!
61. Cool Python Stuff! •  dulwich, a pure python git implementation! •  GitPython, wraps git command line tools! •  Legit, a more humane git CLI (by Kenneth Reitz)! Python
62. Cool Python Stuff! •  pygit2 - Python binding for libgit2 (an alternative C implementation)! •  git-cola - a graphical git client written in Python! Python
63. Thank you!! Questions?!