A little information about Git

Presented on KievAltNet, UA Dev Club 2011

In this talk I describe some intial information and internal of the most popular DVCS system - Git.

Transcript

1. A little information on Git Alexander Beletsky, E-conomic @alexbeletsky http://beletsky.net
2. What is Git? Git is a distributed source code management system (c) K.O.
3. The birth of Git • It's all began in Linux Kernel community • Tarballs and gzip used for long time to contribute patch • BitKeeper as first SCM for Linux Kernel project • Friendship is over in 2005 • Development of Kernel stopped till SCM is found • No good enought alternatives found • 2 weeks to create initial version of Git
4. Does Git mean something? “I’m an egotistical bastard, and I name all my projects after myself. First Linux, now git.” Linus Torvalds
5. Distributed • No central repository • Each developer host repository on machine • Allows to work offline
6. Content • Content Tracking != File Tracking • Name, path etc. is not part of content • SHA1 algorithm used create content digest • Separate "Index" and "Data" • Store the version, not difference • History is computed rather stored
7. Management • Blobs, Trees, Commits, Tags • Indexes
8. Branches and merges • De-centralized but centralized • Developers are welcome to do branches • Pulling requests to each other • Pushing changes to origin • Merge is easy now
9. Development model with Git • No permissions to commit • Branches, branches, branches • Network of Trust instead of Corporate Policy • Leaders have release branches
10. What about SVN? • SVN is not dead • SVN still suite a lot of companies • Git for Crowd - SVN for Corporate
11. Github Git-as-Service • http://github.com • Git as SCM, RoR web interface • Huge community • Git sources hosted on Github
12. THANK YOU! Questions?