Git basic
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Git is a free and open source distributed version control system that is used by many large companies and open source projects. It allows for cheap and easy local branching, has a staging area to review changes before committing, and is designed for speed and handling large repositories due to being written in C and storing data efficiently. Git is also distributed so it allows for multiple backups of code and easy merging of changes from different branches.
Git basic
- 1. GIT Basic Why use GIT? saif shobuz http://ahmsaiful.wordpress.com
- 2. Key Points • • Free and open source, a SCM like Subversion, CVS, Perforce, ClearCase • Distributed version control system • Cheap local branching • Staging areas Companies & Projects using git: Linux kernel, Google, Microsoft, LinkedIn, PostgreSQL, Android, Ruby on Rails, eclipse
- 3. Branching & Merging: • Apart from other SCM is its branching model • Multiple local branches: create/merge/delete take seconds • Context Switching, Role based branches.
- 4. Small and First • All operations performed locally give it a huge speed • Was built to work on the Linux kernel, handled large repos from day 1 • Written in C, reducing the overhead of runtimes associated with higher level lang • Speed & performance was primary goal when building git • it is one or two orders of magnitude faster than SVN • One place where git is slower in the initial clone operation, because git downloads the entire history rather than the latest version.
- 5. Distributed • Multiple backups • Won’t allow you to push if someone pushed meantime • Integration Manager • Dictator and Lieutenants Workflow
- 6. Data Assurance • Every file and commit is checksummed, it’s impossible to get anything out of git other than the exact bits you put in. • Impossible to change any file/date/commit
- 7. Staging Area • Intermediate stage where commit can be formatted and reviewed before completing. • Git commit ‘-a’ to avoid it.
- 8. Free and open source More Dig: • http://try.github.com • http://git-scm.com/book/en/Git-Basics • http://ndpsoftware.com/git-cheatsheet.html • https://github.com/ (for online shared repos)