[rules-dev] Getting started with git on drools for svn guys

Wolfgang Laun wolfgang.laun at gmail.com
Mon Dec 20 03:43:46 EST 2010


OK, but why is git log showing the (not yet push-ed but add-ed and
commit-ted) change the same way as the changes imported from svn?

$ git log
commit b683d7f6fdb05472816a2d711cfa814af0b2859c
Author: Wolfgang Laun <wolfgang.laun at gmail.com>
Date:   Sun Dec 19 21:37:47 2010 +0100

    javadoc cleanup

commit c8ca08e52db262aa8c834d82353ae5b7ae699d6b
Author: Wolfgang Laun <wolfgang.laun at gmail.com>
Date:   Sat Dec 18 10:51:20 2010 +0000

    JBRULES-2814
    JBRULES-2819
    PackageBuilder.java

-W


On 20 December 2010 09:03, Geoffrey De Smet <ge0ffrey.spam at gmail.com> wrote:

>  "git commit" != "svn commit"
> "git commit; git push;" == "svn commit"
>
> A *git commit* doesn't push your changes to the remote repository.
> Use *git push* to one or more commits to the remote repository.
>
> Op 20-12-10 08:03, Wolfgang Laun schreef:
>
> Hi!
>
> Not by hacking ;-)
>
> I proceeded according to your howto and obtrained a copy of the repository
> (git clone).
> I had saved a changed file, copied it into the right place and did
>    git add <pathname>
>    git commit
>    <comment>
> which appeared to work; for confirmation I ran
>    git log
> and saw what there is to see.
>
> I sent you my data from git registration, so perhaps you did give me
> permission?
>
> Wolfgang
>
>
> On 19 December 2010 21:49, Geoffrey De Smet <ge0ffrey.spam at gmail.com>wrote:
>
>>  You're not given authorization yet, how's that possible?
>> Are you on irc? irc.codehaus.org #drools
>>
>> Op 19-12-10 21:46, Wolfgang Laun schreef:
>>
>> I think I did the first commit on the git repository and also the last one
>> on the subversion one :-)
>> -W
>>
>>
>> On 19 December 2010 21:30, Edson Tirelli <ed.tirelli at gmail.com> wrote:
>>
>>>   All,
>>>
>>>   Some comments on the document bellow as I was discussing with Geoffrey:
>>>
>>> * "git checkout" is actually the same as "svn switch", i.e., switching
>>> between branches in the same working directory... although git is so
>>> fast doing this you can't even compare with svn switch.
>>>
>>> * git has the concept of staging area. Because of that, when you do a
>>> commit, either you do "git commit -a" to commit everything, or you
>>> list the files you want to commit: "git commit <files_to_commit>". The
>>> git pro book explains this in detail and how to take advantage of the
>>> staging area with "git add".
>>>
>>> * be careful when using branches and rebase. The book also lists the
>>> golden rule for rebase:
>>>
>>> "Do not rebase commits that you have pushed to a public repository."
>>>
>>> * do not push personal branches to the reference repository. If you
>>> need to share a personal/development branch with someone, clone the
>>> repo into your github account and use that clone to make your
>>> personal/development branches public.
>>>
>>>   I am also a beginner on git, but so far it has been working so much
>>> better for me and bringing so many features that I never imagined
>>> possible that I am very happy with the move. I strongly recommend, as
>>> Geoffrey mentioned before, that you read the "Pro Git" book... it is
>>> really good.
>>>
>>>   Edson
>>>
>>> 2010/12/19 Geoffrey De Smet <ge0ffrey.spam at gmail.com>:
>>>  > Purpose
>>> >
>>> > This document shows you how to use Git, just as you were using SVN in
>>> the
>>> > past. It is to get you guys up and running with git as soon as possible
>>> by
>>> > relying on your SVN knowledge and it is focuses on what you want to do
>>> in
>>> > drools.
>>> > This document does not really teach you Git. Git is not just SVN++, it
>>> is
>>> > much more and you should take some time to learn that too.
>>> >
>>> > Terminology
>>> >
>>> > SVN trunk is renamed to Git master. A branch is still a branch. A tag
>>> is
>>> > still a tag.
>>> > Translation note: trunk == master
>>> >
>>> > The SVN central repository is now the reference repository on github,
>>> see
>>> > https://github.com:droolsjbpm/droolsjbpm.
>>> >
>>> > Part 1: Need to know
>>> >
>>> > Preparation
>>> >
>>> > If:
>>> >
>>> > you’ve done the preparation in the dev list mail
>>> >
>>> > and the correction too, skip to section Getting the source code
>>> locally.
>>> > haven’t done the correction yet, do this first (and the skip to that
>>> > section):
>>> >
>>> > Step 4 stated:
>>> >
>>> > $ git config --global user.name myUsername  // WRONG
>>> >
>>> > Correct that by running:
>>> >
>>> > $ git config --global user.name "My Name"
>>> > $ git config --global -l
>>> >
>>> > you haven’t done the preparation yet, do it now, as stated below.
>>> >
>>> > Full preparation:
>>> >
>>> > 1) Install git for your OS
>>> >
>>> > 1a) Linux: Install the package git (and optionally gitk)
>>> >
>>> > $ sudo apt-get install git
>>> > $ sudo apt-get install gitk
>>> >
>>> > 1b) Windows: Use the icon on the right on http://git-scm.com
>>> > 1c) Mac OSX: Use the icon on the right on http://git-scm.com
>>> >
>>> > Optionally install gitx from http://gitx.frim.nl/
>>> >
>>> > 2) Install git in your IDE
>>> >
>>> > 2b) Eclipse: Install the EGit plugin.
>>> >
>>> > Menu Help, menu item Install new software.
>>> > Work with update site Helios, open Tree item Collaboration, tree item
>>> > Eclipse EGit.
>>> >
>>> > 2c) IntelliJ: Enable the git plugin (if not enabled):
>>> >
>>> > Menu file, menu item Other Settings, menu item Configure plugins.
>>> >
>>> > 3) Get a Github account: https://github.com/signup/free
>>> > 4) Configure git correctly (Github also tells you this):
>>> >
>>> > $ git --version
>>> > git version 1.7.1
>>> > $ git config --global user.name "My Full Name"
>>> > $ git config --global user.email myAccount at gmail.com
>>> > $ git config --global -l
>>> > user.name=Geoffrey De Smet
>>> > user.email=ge0ffrey.spam at ...
>>> >
>>> > 6) Push your public key to github:
>>> >
>>> > Follow the instructions on
>>> http://github.com/guides/providing-your-ssh-key
>>> >
>>> > Getting the source code locally
>>> >
>>> > First move your old SVN working directory aside, so you’re not confused
>>> that
>>> > you shouldn’t work there any more:
>>> > $ cd projects
>>> > $ mv drools drools-oldsvn
>>> >
>>> > Now you’re ready to get the sources with git. In SVN this is a svn
>>> checkout,
>>> > but in Git this is called a git clone. Prefer the faster, stabler git
>>> > protocol over the slower https protocol:
>>> > $ git clone git at github.com:droolsjbpm/droolsjbpm.git droolsjbpm
>>> > Next go into that directory
>>> > $ cd droolsjbpm
>>> >
>>> > So what’s the command git checkout for? To switch to another branch,
>>> but in
>>> > the same working directory. In SVN you also use svn checkout for that.
>>> > Translation note: svn checkout == git clone (new repository) OR git
>>> checkout
>>> > (change branch)
>>> >
>>> > Follow the instructions in the README.txt to set up your Eclipse or
>>> IntelliJ
>>> > again.
>>> >
>>> > Getting changes from others
>>> >
>>> > So Mark and Edson changed something in drools-core in the reference
>>> > repository. How do I get those changes? In SVN this is svn update, but
>>> in
>>> > Git this is a git pull.
>>> > $ git pull
>>> > Translation note: svn update == git pull
>>> >
>>> > Making changes
>>> >
>>> > While making your changes, do the same as in SVN: git add, git rm
>>> (instead
>>> > of svn delete), git status.
>>> > Translation note: svn delete = git rm
>>> >
>>> > After making your changes, you ‘ll want to do a git commit (when you’re
>>> done
>>> > with a changeset) and a git push (to share those changes with the rest
>>> of
>>> > the team). To recap: doing a git commit does not push your changes to
>>> the
>>> > remote repository yet, you also need to do a git push.
>>> > $ git commit -m “JBRULES-123 fix testcase”
>>> > $ git push
>>> > Translation note: svn commit == git commit + git push
>>> >
>>> > Part 2: Tell me more
>>> >
>>> > Extra terminology
>>> >
>>> > What is rebasing? A rebase is an alternative manner of merging: instead
>>> of
>>> > merging your changes with the incoming changes, it takes the incoming
>>> > changes and applies your changes on top of that. For example:
>>> > $ git pull --rebase
>>> >
>>> > What is origin? Because git can work with multiple remote repositories
>>> > (usually forks of the same project), the default remote repository is
>>> known
>>> > as origin. If you’ve cloned the reference repository, then origin is
>>> the
>>> > reference repository. If you’ve forked the reference repository as A
>>> and
>>> > cloned A, then origin is A.
>>> >
>>> > Branching
>>> >
>>> > Usually we’ll have 2 types of branches: release branches and topic
>>> branches.
>>> > To switch to another branch, just use git checkout:
>>> > $ git checkout 5.1.x
>>> >
>>> > To create a branch do:
>>> > $ git checkout -b 5.2.x
>>> >
>>> > Release branching
>>> >
>>> > A release branches is copied from the master branch and only receives
>>> > bug-fixes. It is separated from the master branch so no unstable
>>> features or
>>> > improvements (pushed by other developers) leak in.
>>> > For example: $ git checkout 5.1.x
>>> >
>>> > Cherry picking is very interesting to pick bug-fixes from the master
>>> branch
>>> > into the release branch.
>>> >
>>> > Topic branching
>>> >
>>> > A topic branch is copied from the master branch and is eventually
>>> merged
>>> > back into the master branch. Its changes are to disruptive to other
>>> team
>>> > members to be committed to the master immediately.
>>> > For example: $ git checkout trueModify
>>> >
>>> > Rebasing is very interesting when you’re working on an experimental
>>> feature
>>> > in a topic branch for the last few weeks and you want to have the
>>> latest
>>> > changes of master(=trunk) in there too (= sync up with master):
>>> > // on my the myTopic branch
>>> > $ git rebase master
>>> >
>>> > After your topic branch is stable, you’ll merge it into the master
>>> branch:
>>> > $ git checkout master
>>> > $ git merge trueModify
>>> >
>>> > Learn more
>>> >
>>> > Do you want to really learn Git?
>>> > Read the Pro Git book (freely available online):
>>> http://progit.org/book/
>>> > You’ll easily gain the time you spend reading that book, because Git is
>>> more
>>> > than SVN++.
>>> > Read that book, especially if you’re going to do branching and merging!
>>> > Other references: Hibernate git tricks, SVN crash course, Git for Gnome
>>> > developers, ...
>>> >
>>> > --
>>> > With kind regards,
>>> > Geoffrey De Smet
>>> >
>>>  > _______________________________________________
>>> > rules-dev mailing list
>>> > rules-dev at lists.jboss.org
>>> > https://lists.jboss.org/mailman/listinfo/rules-dev
>>> >
>>> >
>>>
>>>
>>>
>>> --
>>>   Edson Tirelli
>>>   JBoss Drools Core Development
>>>   JBoss by Red Hat @ www.jboss.com
>>>
>>> _______________________________________________
>>> rules-dev mailing list
>>> rules-dev at lists.jboss.org
>>> https://lists.jboss.org/mailman/listinfo/rules-dev
>>>
>>
>>
>> _______________________________________________
>> rules-dev mailing listrules-dev at lists.jboss.orghttps://lists.jboss.org/mailman/listinfo/rules-dev
>>
>>
>> --
>> With kind regards,
>> Geoffrey De Smet
>>
>>
>> _______________________________________________
>> rules-dev mailing list
>> rules-dev at lists.jboss.org
>> https://lists.jboss.org/mailman/listinfo/rules-dev
>>
>>
>
> _______________________________________________
> rules-dev mailing listrules-dev at lists.jboss.orghttps://lists.jboss.org/mailman/listinfo/rules-dev
>
>
> --
> With kind regards,
> Geoffrey De Smet
>
>
> _______________________________________________
> rules-dev mailing list
> rules-dev at lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-dev
>
>
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