Getting To Know Git

Chicago, October 19 - 22, 2010
Getting to know Git
Colin Harrington – Object Partners

SpringOne 2GX 2010. All rights reserved. Do not distribute without permission.
whoami
Colin Harrington
Senior Consultant
@ColinHarrington
colin.harrington@gmail.com
colin.harrington@objectpartners.com

What is Git?
Git is a free & open source, distributed version
control system designed to handle everything from
small to very large projects with speed and efficiency.
Every Git clone is a full-fledged repository with
complete history and full revision tracking capabilities,
not dependent on network access or a central server.
Branching and merging are fast and easy to do.
– http://git-scm.com/

Why Git?

Why Git?
http://github.com/grails/

Git != SVN

Centralized VCS

Decentralized / Distributed VCS

Git – SVN Crash Course
http://git-scm.com/course/svn.html

Mind << git basics
start brand new repository:
git init
clone an existing repository:
git clone <giturl>

Demo

Mind << git basics
git init
git add .
git commit
git init
git add .
git commit

Mind << git fundamentals
`

SHA hashes
Authorship preservation
Tree Structure!

http://book.git-scm.com/1_the_git_object_model.html

Porcelain vs Plumbing

Porcelain vs Plumbing
init
log
rebase
merge
commit
add
checkout
revert
pack
pull
push
status
bisect
clone
diff
grep
tag
branch

Mind << branch
git branch
git branch a
git checkout b <branchName>
git checkout <existingBranchName>

Mind << merge
git merge <branch>
git merge <branch> nocommit

Mind << clone
git clone <url>
Similar to svn checkout
Clones the entire repository!
Adds a remote

Mind << remotes
git branch r
git branch track <branch>
<remotebranch>
git branch r d <remotebranch>

Mind << working with remotes
Index
Local
Repository
Remote
Repository
Push
Pull
Files on drive

Mind << git-svn
clone an entire SVN repository!
git svn clone s <url>
git svn clone s r 1234 <url>
… without -s, etc.

Mind << git-svn
git svn rebase
→ rebases the current branch on the remote-tracked
svn branch (trunk or branches)
git svn fetch
→ fetches changes from svn
Checkout a remote branch
Keep the original branches clean!!
Stash, rebase, dcommit, and do it again!

Give Back to Grails
http://grails.org/contribute
http://grails.org/Creating+Patches+From+Git
http://grails.org/GitHub+Forking+and+Pull+Requests
http://jira.codehaus.org/browse/GRAILS

Resources
http://www.sourcemage.org/Git_Guide
http://git.or.cz/course/svn.html
http://www.youtube.com/watch?v=4XpnKHJAok8
http://www.kernel.org/pub/software/scm/git/docs/user-manual.html
http://www.kernel.org/pub/software/scm/git/docs/everyday.html
http://book.git-scm.com/
http://whygitisbetterthanx.com/
http://cheat.errtheblog.com/s/git
http://progit.org/book/
http://refcardz.dzone.com/refcardz/getting-started-git
http://bit.ly/avGDTz
… many more valuable resources out there!

Q&A

Thank you!

Credits

Git logo :: by azizash :: http://azizash.deviantart.com/art/GIT-Logo-95183398

Grails logo :: http://grails.org/Brand

Perl logo :: Criado por O'Reilly :: http://commons.wikimedia.org/wiki/File:Perl.jpg

VLC logo :: illustration (and iteration) by Richard C. G. Øiestad. GNU GPL by Video LAN

Rails logo :: KSEltar :: http://commons.wikimedia.org/wiki/File:Ruby_on_Rails_logo.svg

jQuery logo :: http://commons.wikimedia.org/wiki/File:Logo_jquery_215x53.gif

Linux logo :: gg3po (kde-look.org source) :: http://commons.wikimedia.org/wiki/File:NewTux.svg

Eclipse logo :: http://www.eclipse.org/artwork/

Android logo :: Google and Android's developpers :: http://commons.wikimedia.org/wiki/File:Android_robot.svg

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