Changes for page Getting Started with Git

Last modified by Bastian Triller on 2013/05/21 17:24

From 163.1 to 164.1 From 181.1 to 182.1

From version 164.1

edited by Kieran Kelleher
on 2011/03/29 16:24

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To version 181.1

edited by David Avendasora
on 2011/04/29 15:44

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--git
++Getting Started with Git

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++XWiki.avendasora

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--= Learning About git =
++= Got Git? No? Get Git =
--[[Excellent Concept Tutorial on Git>>http://www.eecs.harvard.edu/~~cduan/technical/git/]]
--[[Free Online Pro Git book>>http://progit.org/book/]]
--[[Git User Manual>>http://www.kernel.org/pub/software/scm/git/docs/user-manual.html]]
--[[Git Reference>>http://gitref.org/index.html]]
--[[Linus Torvalds talks about git>>http://www.youtube.com/watch?v=4XpnKHJAok8]]
++* Official Download Site: [[http://git-scm.com/download]]
++* Direct Download Links:
++** MacOS X [[.dmg Binary Installers>>http://code.google.com/p/git-osx-installer/]]
++** Microsoft Windows [[.exe Binary Installers>>http://code.google.com/p/msysgit/]]
--= Install Git =
++= Learn About Git =
--[[OS X dmg Installer>>http://code.google.com/p/git-osx-installer/]]
++* Learn the concepts.
++** [[This>>http://www.eecs.harvard.edu/~~cduan/technical/git/]] is an excellent tutorial on the basic concepts behind Git
--= Git Goodies =
++* Learn the basics.
++** [[Everyday GIT With 20 Commands Or So>>http://www.kernel.org/pub/software/scm/git/docs/everyday.html]]
++** [[Free Online Pro Git book>>http://progit.org/book/]]
--=== Git Bash Completion ===
++* Get familiar with the reference materials available online
++** Official [[Git Documentation>>http://git-scm.com/documentation]] Site
++** Official [[Git User Manual>>http://www.kernel.org/pub/software/scm/git/docs/user-manual.html]]
++** [[Git Reference>>http://gitref.org/index.html]]
--This is really an absolute necessity and a **huge** productivity improvement. Basically you need the bash completion script from the source tarball and use your shell profile to include it whenever you open a shell. See the **Auto-Completion** section on this page:
--[[Git Bash Auto-Completion>>http://progit.org/book/ch2-7.html]]
++* Git Cheat Sheets
++** [[http://cheat.errtheblog.com/s/git/]]
++** [[http://ktown.kde.org/%7Ezrusin/git/git-cheat-sheet-medium.png]]
--=== GitX git GUI ===
++* [[Linus Torvalds talks about git>>http://www.youtube.com/watch?v=4XpnKHJAok8]]
++Have a Good Laugh here as Linus Torvalds Evangelizes git. //NOTE: This isn't really learning, but it is way more fun and gives you insight into the motivation behind git.//
--GitX is an awesome FREE history viewer made for OS X. It is a better way to visualize your branch and commit history of your git repository. However, power users (aka "cool kids") will probably only use it for history viewing while they continue to use the terminal command line for checkouts, branching, staging, rebasing and committing.
--[[GitX Home Page>>http://gitx.frim.nl/]]
++= Get Started with Project Wonder =
--=== Open in GitX ===
++The best way to learn a new concept is to actually use it, and what better way than to do something practical like clone (checkout) the Project Wonder source code
--[[Open In GitX Finder Droplet>>http://code.google.com/p/git-osx-installer/wiki/OpenInGitX]]
++* [[Downloading Wonder>>http://wiki.objectstyle.org/confluence/display/WONDER/Getting+the+Wonder+Source+Code]] Wiki Page
--== Git Tower ==
++= Use Git with a Subversion Project =
--For those of you who just get panic attacks at the thought of using the Terminal, there is a commercial app for that:
--[[Git Tower>>http://www.git-tower.com/]]
++OK, so you want to use Git but you are working on a team project that is hosted in a subversion repository ... and it is making you depressed :-( . Well, you can still use Git to manage your local SVN working copy and be happy again
--= Using git locally on a Subversion Working Copy =
++I recommend you just use the [[git+svn protocol>>http://www.lostechies.com/blogs/derickbailey/archive/2010/02/03/branch-per-feature-how-i-manage-subversion-with-git-branches.aspx]].
--OK, so you are addicted to git, and now you have to work on a team project that is hosted in a remote subversion repository ... and it is making you depressed :-(. Well, you can use manage your local svn working copy using git and be happy again!
++= Git Goodies for WebObjects Developers =
--There is a git-svn tool (type man git-svn in the terminal for details), but that adds yet another tool into the mix that you have to learn. So while you could use it and YMMV for projects tht are going to be on svn forever, I recommend you just use the [[git+svn protocol>>http://www.lostechies.com/blogs/derickbailey/archive/2010/02/03/branch-per-feature-how-i-manage-subversion-with-git-branches.aspx]] instead, especially if you are typically working on one particular branch of the remote svn repository.
++This is a list of tools that other WebObjects developers have found to be helpful. It's not a comprehensive list, and if you find things not listed here please add them
--= I want to learn git before I switch from Subversion =
++=== EGit  ===
--(This kind of repeats some of the previous section, but that's on purpose so we can condition you brain to start using git right now ;-) )
--Even while you are working with svn repositories, you can start learning and taking advantage of git right now by making your local svn working copy an actual local git repository. The idea is to use the appropriate ignore feature of each SCM system to ignore the hidden files of the other system. The concept is described here:
++EGit is a plugin for Eclipse 3.6. It's not as good as Tower or GitX, but you can use it for most tasks (add, commit, push, pull).
--[[**git+svn** Working Protocol>>http://www.lostechies.com/blogs/derickbailey/archive/2010/02/03/branch-per-feature-how-i-manage-subversion-with-git-branches.aspx]]
++* [[EGit/Git For Eclipse Users>>http://wiki.eclipse.org/EGit/Git_For_Eclipse_Users]]
++* [[User Guide>>http://wiki.eclipse.org/EGit/User_Guide]]
++* Installation
++*1. In Eclipse, select //Help > Install New Sofware...//
++*1. Select the "Helios" download site from the Work with: combo box
++*1. Expand the "Collaboration" group
++*1. Select the EGit plugin, click Next
++*1. Complete the install process and agree to the license, etc.
++*1. Restart Eclipse.
--When you first learn about git and you google "git svn" you will learn about a command line tool git-svn which works directly with remote svn repos. Unless you want to use git locally to switch between svn branches, I don't recommend it. Use the **git+svn** approach outlined in above blog post instead.
++=== Git Bash Completion ===
--Once you start using git, it becomes addictive ....... you can never go back ...... really, it's that good ...... and it is not hard.
++This is really an absolute necessity and a **huge** productivity improvement. Basically you need the bash completion script from the source tarball and use your shell profile to include it whenever you open a shell. See the **Auto-Completion** section on this page:
++[[Git Bash Auto-Completion>>http://progit.org/book/ch2-7.html]]
--Some tips for Eclipse setup and general workflow when using git locally on svn working copies,
++=== GitX git GUI ===
--* check out the entire svn branch that you work on using the command line, then LINK (import no copy) the projects you want in your workspace using the Subclipse import tool, and
--* Do your git operations (status, staging, commit, diff, branching, checkouts, rebase and merge using the terminal). git on the terminal is efficient... honest.
--* Do all your local work and cimmits on branches other than the master branch.
--* Switch to master branch to update from svn and commit those svn updates on the master branch.
--* Merge your working branch(es) with or rebase your working branch(es) from the master and just keep on working.
--* Switch to master branch before synchronizing with remote svn repo.
--* You can use ##git stash## to temporarily  put aside your uncommitted changes before doing an svn update. Then use ##git stash pop## to replay those uncommitted changes onto the working copy.
++GitX is an awesome FREE history viewer made for OS X. It is a better way to visualize your branch and commit history of your git repository. However, power users (aka "cool kids") will probably only use it for history viewing while they continue to use the terminal command line for checkouts, branching, staging, rebasing and committing.
++[[GitX Home Page>>http://gitx.frim.nl/]]
--{{code title="Mechanics of an svn update operation on a git-managed svn working copy"}}
++=== Open in GitX ===
++[[Open In GitX Finder Droplet>>http://code.google.com/p/git-osx-installer/wiki/OpenInGitX]]
--# Assume you are currently on a working branch. Verify this and check for uncommitted changes.
--git status
++=== Git Tower ===
--# Either commit your local changes to your working branch
--# using 'git add' + 'git commit', or temporarily stash
--# them using 'git stash'
--git stash
++[[Git Tower>>http://www.git-tower.com/]] is a commerical app for those of you who just get panic attacks at the thought of using the Terminal.
--# Switch to master branch
--git checkout master
++I use Tower (bought it), but only for committing and fixing merge conflicts. I think Tower misses quite a bit of the flagship feature of GIT: branches. You can't see a branch tree graphically, like you can with gitX or even the command line (git log -graph -color, IIRC). But it's cool for committing. For everything else I use command line.
++ Miguel Arroz
--# Ensure there are no changes either from an svn perspective
--# or a git perspective on the master branch.
--git status
--svn status
++= Unique Git Concepts =
--# Update the master branch from remote svn repo
--svn update
++=== Rebasing ===
--# Commit those updates to git repo
--git commit -a -m "updated from remote svn repo"
++Rebasing is unique to git. There is no counterpart in Subversion.
--# Switch to your working branch
--git checkout workingbranch
++Rebasing cuts down on the spaghetti history of merging and helps to keep history nice and linear.
--# Merge or rebase your working branch off of the updated master.
--# This rewinds your branch commits back to the common commit ancestor
--# shared between your working branch and the master branch. Then it
--# applies the master branch commits (the svn updates) so that this
--# working branch becomes identical to the master. After that it 'replays'
--# your working branch commits on top of the updated branch.
--# This ensures a clean linear progression. Rebasing is a very cool feature of git.
--rebase master
++Conceptually, when I rebase my current branch A on another branch B, git removes all my branch A commits back to the common ancestor of A and B, stashes those commits away temporarily, moves the head of the current branch A to the tip of the other branch B, and then re-applys all my stashed commits as **new commit** patches to my branch B.
--# Now if you stashed uncommitted changes earlier, you can pop them back into
--# the working copy
--git stash pop
++However before using it on work that is shared with others you MUST follow the these rules, otherwise you will screw everyone else on the project.
--{{/code}}
--
--{{code title="Mechanics of an svn commit operation from a git-managed svn working copy"}}
--
--# First perform an svn update as outlined above in the previous section
--
--# Switch to the master branch
--git checkout master
--
--# Merge your working branch with the master
--git merge workingbranch
--
--# Use svn status, svn add and svn commit to commit your changes to the remote svn repository
--
--# Switch back to your workingbranch and get back to work.
--
--
--{{/code}}
++* If you don't understand rebasing, don't use it You can learn more about it here:
++** [[http://progit.org/book/ch3-6.html]]
++** [[http://www.eecs.harvard.edu/~~cduan/technical/git/git-5.shtml]]
++** [[http://book.git-scm.com/4_rebasing.html]]
++** [[http://blip.tv/file/4094727]]
++* Use rebase only on **private** branches
++* Use rebase only for commits that have **not been pushed** to a remote repo

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