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This page is part of the [[Developer Section]]. It describes how to use [http://git-scm.com/ git] to manage the BaseX sources.
 
==Using Git to contribute to BaseX ==
The Our team uses git and [https://github.com GitHub] to manage the source code. All team members have read/write access to the repository, and external contributors are welcome to fork the project.  Git makes it easy to retain a full copy of the repository for yourself. To get started and running, simply ''fork'' BaseX: # Head over to https://github.com and create an account# Fork https://github.com/BaseXdb/basex, so you have a version on your own# The forked project can then be cloned on your local machine, and changes can be pushed back to your remote repository ==Using Git & Eclipse== <table cellspacing='0' cellpadding='0' width='100%'><tr><td valign='top'>[[File:Git01.png|border|300px|left]][[File:Git02.png|border|300px|left]][[File:Git03.png|border|300px|left]][[File:Git04.png|border|300px|left]][[File:Git05.png|border|300px|left]][[File:Git06.png|border|300px|left]][[File:Git07.png|border|300px|left]][[File:Git08.png|border|300px|left]][[File:Git09.png|border|300px|left]][[File:Git10.png|border|300px|left]] </td><td valign='top'> ===Clone=== * In the '''Package Explorer''' to the left, use right-click and choose '''Import...'''* Select '''Projects from Git''' and click '''Next &gt;'''* Choose the '''Clone''' option to create a local copy of the remote repository. This copy will include the full project history* Copy & Paste the GitHub URI in the Location field. If you want to use SSH, make sure you provided GitHub with your public key to allow write-access. If in doubt, use the https URI and authenticate yourself with your GitHub credentials. The read-only URI of the repository is {{Code|https://github.com/BaseXdb/basex.git}}.* Select the master branch (or arbitrary branches you like) * Now choose a location where the local repository is stored: Create &lt;workspace&gt;'''/repos/BaseX ''' and click "'''Finish'''".  ===Create the project === * Select our newly cloned repository and click Next* Select "'''Import Existing Projects'''" and depending on your Eclipse version enable automatic sharing. More recent versions will not offer this feature as sharing is enabled by default.* Click next to select the Project to import* Check "basex" to checkout and click finish* You are now ready to contribute.  ===EGit & SSH=== The Eclipse git plugin uses the [http://www.jcraft.com/jsch JSch] library, which had [https://bugs.eclipse.org/bugs/show_bug.cgi?id=326526 problems with RSA SSH keys] in Linux and possibly other platforms. If the problem persists, the path to the native SSH executable can be assigned to the {{Cpde|GIT_SSH}} variable. According to [http://egit.eclipse.org/r/#change,2037 this] change in EGit, the plugin will try to use a native SSH implementation instead of JSch. ==Using Git on Command-Line== '''Note''': this is not intended to be a complete git reference; it's purpose is to quickly introduce BaseX developers to the most commonly used git commands in the context of the BaseX project. ===Preparation=== # Create a GitHubuser account: [https://github.com/signup/free here] (your github user name will be referenced as $username)# Set up SSH access to manage GitHub as described [http://help.github.com/key-setup-redirect here]# Create a fork of one of the BaseXdb projects (it will be referenced as $project)# Choose a directory where the project will be created and make it your working directory (e. g. /home/user/myprojects) ===Clone Repository=== <pre class="brush:shell">$ git clone git@github.com:$username/$project.gitCloning into $project...Enter passphrase for key '/home/user/.ssh/id_rsa': ... $ ls -d -1 $PWD/*/home/user/myprojects/$project</pre>Note that git automatically creates a directory where the repository content will be checked out. ===List Remote Repositories=== <pre class="brush:shell">$ git remote -vorigin git@github.com:$username/$project.git (fetch)origin git@github.com:$username/$project.git (push)</pre>Currently, there is only one remote repository; it is automatically registered during the clone operation. Git remembers this repository as the default repository for push/pull operations. ===List Local Changes=== After some files have been changed locally, the changes can be seen as follows:<pre class="brush:shell">$ git diffdiff --git a/readme.txt b/readme.txtindex fabaeaa..cd09568 100644--- a/readme.txt+++ b/readme.txt@@ -49,6 +49,10 @@ ADDING CHECKSTYLE -------------------------------------------------------------- - Enter the URL: http://eclipse-cs.sourceforge.net/update - Follow the installation procedure and restart Eclipse +USING GIT ---------------------------------------------------------------------- Any kind of feedback is welcome; please check out the online documentation at</pre> ===Commit to Local Repository=== '''Note''': this commit operation does '''not''' commit into the remote repository! First, it is needed to select the modified files which should be committed:<pre class="brush:shell">$ git add readme.txt</pre> Then perform the actual commit:<pre class="brush:shell">$ git commit[master 0fde1fb] Added TODO in section "USING GIT" 1 files changed, 4 insertions(+), 0 deletions(-)</pre>Before executing the actual commit, git will open the default shell editor (determined using the $EDITOR variable, usually vi) to enter a message describing the commit changes. Alternative way is to commit all changed files, i. e. it is not needed to explicitly add the changed files:<pre class="brush:shell">$ git commit -a[master 0fde1fb] Added TODO in section "USING GIT" 1 files changed, 4 insertions(+), 0 deletions(-)</pre> ===Pushing Changes to Remote Repository=== <pre class="brush:shell">$ git pushEnter passphrase for key '/home/user/.ssh/id_rsa': Everything up-to-date</pre> ===Pulling Changes from Remote Repository=== <pre class="brush:shell">$ git pullEnter passphrase for key '/home/user/.ssh/id_rsa': Already up-to-date.</pre> ===Add Upstream Repository=== The upstream repository is the one from which the BaseX releases are made and the one from which the personal repository was forked. <pre class="brush:shell">$ git remote add upstream git@github.com:BaseXdb/$project.git $ git remote -vorigin git@github.com:$username/$project.git (fetch)origin git@github.com:$username/$project.git (push)upstream git@github.com:BaseXdb/$project.git (fetch)upstream git@github.com:BaseXdb/$project.git (push)</pre> ===Pulling Changes from Upstream to Local Repository=== When some changes are made in the upstream repository, they can be pulled to the local repository as follows: <pre class="brush:shell">$ git pull upstream masterEnter passphrase for key '/home/user/.ssh/id_rsa': From github.com:BaseXdb/$project * branch master -> FETCH_HEADAlready up-to-date.</pre> The changes can then be pushed in the personal repository:<pre class="brush:shell">$ git push</pre> Check out the links at the end of the page for more git options.</td></tr></table> ===Developing a new feature or bug fix=== It is always a good idea to create a new branch for a new feature or a big fix you are working on. So first, let's make sure you have the most up-to-date source code.We assume, that you added BaseX as upstream repository as described above and you are currently in the ''master'' branch: <pre class="brush:shell">$ git pull upstream master</pre> Now, we create a new branch, based on the master branch <pre class="brush:shell">$ git checkout -b new-featureSwitched to a new branch 'new-feature'</pre>
All team members have read+write access to the repository, external contributors Your are invitednow automatically switched to fork the project''new-feature'' branch. Now you can make all your changes in one or several commits. You can commit all changes using
Git makes it easy to retain <pre class="brush:shell">$ git commit -a full copy of the repository for yourself.</pre>
==Using Git & Eclipse ==Now, you want to push these changes to the repository on GitHub. Remember, that up to now your changes just reside on your local drive, so now you want to push it to your remote fork of BaseX. Simply do:
# <pre class="brush:shell">$ git push origin new-featureCounting objects: 318, done.Delta compression using up to 4 threads.Compressing objects: 100% (Optional107/107) Head over to [https, done.Writing objects:100% (154/154), 22.96 KiB | 0 bytes/s, done.Total 154 (delta 93), reused 81 (delta 26)To git@github.com:$username/BaseXdb/BaseX BaseX at GitHub] and create an account# Fork BaseX so you have a version on your own# Make yourself familiar with basex.git, there are several tutorials around the web# Install egit (Eclipse: Help > Marketplace > Search for ''egit'' '''or''' get it from * [http://www.eclipse.org/egit/ herenew branch]) new-feature -> new-feature# Open Eclipse</pre>
You can now use your web browser and go to your fork of BaseX. You will see the following message:
<div class="subcolumns"> <div class="c50l"> [[File:Git01Git11.png|border|300px|left]] In the '''Package Explorer''' to the left use right-click and choose Import... </div> <div class="c50r"> [[File:Git02.png|border|300px|left]] Select "'''Projects from Git'''" and click Next &gt; </div></div><div class="subcolumns"> <div class="c50l"> [[File:Git03.png|border|300px|left]] Click "'''Clone...'''" to create a local copy of the remote repository. This copy will include the full project history </div> <div class="c50r"> [[File:Git04.png|border|300px|left]] Copy & Paste the github URI in the Location field. If you want to use SSH make sure you provided GitHub with your public key to allow write-access. If in doubt use the HTTPS URI and authenticate yourself with your GitHub credentials. </div></div>
<div class=You can now click the "subcolumnsCompare & pull request"> <div class="c50l"> [[File:Git05button.png|border|300px|left]] Select You can now review the master branch (or arbitrary branches changes you like) </div> <div class="c50r"> [[File:Git06are going to push.png|border|300px|left]] Now choose a location where the local repository is stored: Pick &lt;workspace&gt;/repos/BaseX and click "'''Finish'''" </div></div>
<div class="subcolumns"> <div class="c50l"> [[File:Git07.png|border|300px|left]] Select our newly cloned repository and click Next </div> <div class="c50r"> [[File:Git08.png|border|300px|left]] Select "'''Import Existing ProjectsPlease review them carefully. Also, please give a meaningful comment so we can quickly determine what your changes are doing.'''After clicking the "Create Pull request" button you are done and depending on we will review your Eclipse version enable automatic sharing. More recent versions will not offer this feature as sharing is enabled by default. Click next to select changes and either merge the Project pull request or get back to import </div></div>you.
<div class="subcolumns"> <div class="c50l"> [[File:Git09.png|border|300px|left]] Check "basex" to checkout and click finish </div> <div class="c50r"> [[File:Git10.png|border|300px|left]] You are now ready to contribute. </div></div>==Need help using git?=====Installing=Links==
===Documentation===* [http://help.github.com/git-installation-redirect/ GitHub: git Installation Guide]
* [http://help.github.com/ Comprehensive Getting Starting Guide on GitHub]
* [http://book.git-scm.com/index.html The git book]
* [http://gitcasts.com/ Gitcasts.com – Video Guides]
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