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Sten Govaerts KU Leuven

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what the hell...• distributed version control

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what the hell...• distributed version control• originally designed and developed by Linus Thorvalds.

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what the hell...• distributed version control• originally designed and developed by Linus Thorvalds.• git (plural gits) (noun) • (UK, slang, pejorative) A contemptible person. • (UK, slang, pejorative) A silly, incompetent, stupid, annoying or childish person.

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distributed? centralised distributedversion control version control GIT SVN or CVS http://www.slideshare.net/lydian/git-tutorial

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but why?...• easier offline usage

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but why?...• easier offline usage• easier to branch projects

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but why?...• easier offline usage• easier to branch projects• git is good at merging files and re-joining branches

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git philosophy• Commit early, commit often!• 1 commit = 1 idea or change • easy to read patches by team members • easy to revert changes later• local repo is your working directory

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why do we need this?• group work • help each other• work on multiple locations• common back-end development?• learning analytics

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how does it work? file states • modified • staged • commited

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how does it work?

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how does it work? dev B shared repo dev A dev C

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how does it work? dev B git clone shared repo dev A dev C

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how does it work? dev B sharedgit push repo dev A dev C

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how does it work? dev B sharedgit push repo dev A dev C

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how does it work? dev B sharedgit push repo git push dev A dev C

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how does it work? dev B sharedgit push repo git push dev A dev C

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how does it work? dev B sharedgit push repo dev A dev C

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how does it work? dev B shared git fetchgit push repo git merge dev A dev C

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• http://www.github.com• make an account (use twitter name) and one repository per group• put repository link on wiki • http://ariadne.cs.kuleuven.be/wiki

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what do you do next?• student A makes the github repository

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what do you do next?• student A makes the github repository• student A commits his work to his local repository and pushes to github

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what do you do next?• student A makes the github repository• student A commits his work to his local repository and pushes to github• student B fetches the repository, commits his work locally and pushes to github

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what do you do next?• student A makes the github repository• student A commits his work to his local repository and pushes to github• student B fetches the repository, commits his work locally and pushes to github• student C fetches the repository, commits his work locally and pushes to github

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how to do this?• command line (4 1337 h4x0rz)• IDE tools • eclipse (http://www.vogella.com/articles/EGit/article.html) • xcode (http://support.beanstalkapp.com/customer/portal/ articles/95580-setting-up-git-with-xcode-4 & http:// developer.apple.com/library/mac/#recipes/xcode_help- repositories_organizer/articles/ CommittingFilestoaRepository.html#//apple_ref/doc/uid/ TP40010350-CH8-SW1)

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tools• http://eclipse.github.com/• http://windows.github.com/• http://mac.github.com/

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git commands cheat sheet• http://www.git-tower.com/files/cheatsheet/ Git_Cheat_Sheet_grey.pdf

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further reading...• Setup github• Create a repo on github• Fork a repo• Everyday GIT with 20 commands or so• Advanced GIT tutorial• GITcasts• Git docs