Using Git for Samba Development: Difference between revisions
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#REDIRECT [[Creating a Samba patch series]] |
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The previous pages based on the git-svn mirror can be found at [[Using Git-SVN for Samba4 Development]] |
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== Overview == |
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Samba source code is now hosted in a shared git repository to which all existing Samba Team members are allow to push to. If you are a Team member and do not have an account on git.samba.org, please email the team list and let the appropriate people know. This shared repository has the same work flow as was used when the SCM of choice was Subversion. In other words, you develop in your local tree and push to the repo although is not necessary to push after every commit. This should be a familiar work flow for those who have used svk. |
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== Git Installation == |
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* The git source code is available from [http://www.kernel.org/pub/software/scm/git/ http://www.kernel.org/pub/software/scm/git/]. |
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* The project home page is located at [http://git.or.cz/ http://git.or.cz/]. |
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* You should probably familiarize yourself with the [http://www.kernel.org/pub/software/scm/git/docs/tutorial.html Git tutorial]. |
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The examples in the following sections are based off of the tools and syntax used by git v1.5.3 or later which is the recommended version for Samba. Either apt-get, yum, or make install the tools. See [http://www.kernel.org/pub/software/scm/git/ Git documentation] for more details on this part. |
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Note that under Debian or Ubuntu, git is distributed in the git-core package. The git package contains the "GNU Interactive Tools". |
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If you are using the Ubuntu Feisty Fawn release, the version of git-core in the official repositories is woefully out of date. A more recent version can be installed by adding the feisty-backports repository to your sources.list file: |
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deb http://archive.ubuntu.com/ubuntu feisty-backports main universe multiverse restricted |
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If you are on OS X, both [MacPorts http://macports.org/] and [Fink http://finkproject.org/] contain working binary packages of Git. Building Git from source on OS X works find, but resolving the chain of dependencies for asciidoc (which is needed to build the man pages) is very painful. |
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== Basic Samba Git == |
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The master git repository is located at ''git://git.samba.org/samba.git''. There is also a [http://gitweb.samba.org/ GitWeb installation]. |
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'''WARNING:''' ''git://git.samba.org/samba.git'' was previously a git-svn mirror. The mirror has been moved to ''git://git.samba.org/samba-svnmirror.git''. |
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Step Zero is to set your name and email address for commits: |
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$ git config --global user.email Your.Email@domain.com |
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$ git config --global user.name "Your Real Name" |
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Next, clone the repository: |
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$ git-clone git://git.samba.org/samba.git samba |
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Initialized empty Git repository in /home/AD/gcarter/src/git/tmp/samba/.git/ |
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remote: Generating pack... |
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remote: Done counting 440544 objects. |
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remote: Deltifying 440544 objects... |
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remote: 100% (440544/440544) done |
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Indexing 440544 objects... |
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remote: Total 440544 (delta 340808), reused 436199 (delta 336480) |
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100% (440544/440544) done |
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Resolving 340808 deltas... |
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100% (340808/340808) done |
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$ cd samba |
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List local and remote branches: |
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$ git-branch |
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* v3-2-stable |
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$ git-branch -r |
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origin/HEAD |
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origin/v2-2-stable |
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origin/v2-2-test |
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origin/v3-0-stable |
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origin/v3-0-test |
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origin/v3-2-stable |
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origin/v3-2-test |
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origin/v4-0-stable |
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origin/v4-0-test |
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Listing tags matching release-3-0-3* |
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$ git-tag -l release-3-0-3* |
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release-3-0-3 |
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release-3-0-3pre1 |
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release-3-0-3pre2 |
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release-3-0-3rc1 |
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Creating your own working branch from v3-2-test: |
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$ git-checkout -b my_branch origin/v3-2-test |
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Branch my_branch set up to track remote branch refs/remotes/origin/v3-2-test. |
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Switched to a new branch "my_branch" |
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Do your own local work: |
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$ mkdir git-test |
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$ echo "hello" > git-test/README |
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View status of changes |
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$ git-status |
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# On branch my_branch |
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# Untracked files: |
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# (use "git add <file>..." to include in what will be committed) |
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# |
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# git-test/ |
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nothing added to commit but untracked files present (use "git add" to track) |
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Add our new file to the local branch index: |
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$ git add git-test |
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$ git status |
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# On branch my_branch |
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# Changes to be committed: |
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# (use "git reset HEAD <file>..." to unstage) |
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# |
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# new file: git-test/README |
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# |
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Commit changes |
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$ git commit -m "Example file for HOWTO" |
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Created commit ad9a1eb: Example file for HOWTO |
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1 files changed, 1 insertions(+), 0 deletions(-) |
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create mode 100644 git-test/README |
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Do some more work and commit local changes.... |
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Now fetch the remote branch history: |
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$ git-fetch |
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Merging remote branch changes: |
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$ git-merge origin/v3-2-test |
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Already up-to-date. |
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Push the changes to the shared repository |
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$ git push ssh://git.samba.org/data/git/samba.git my_branch:v3-2-test |
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updating 'refs/heads/v3-2-test' using 'refs/heads/my_branch' |
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from f2252e041e075e19bf27e53ab3ed62f39bc8b3e2 |
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to ad9a1eb599c125964ac3e198d3003841edb4c54e |
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Generating pack... |
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Done counting 5 objects. |
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Result has 4 objects. |
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Deltifying 4 objects... |
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100% (4/4) done |
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Writing 4 objects... |
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100% (4/4) done |
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Total 4 (delta 1), reused 0 (delta 0) |
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refs/heads/v3-2-test: f2252e041e075e19bf27e53ab3ed62f39bc8b3e2 -> ad9a1eb599c125964ac3e198d3003841edb4c54e |
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== Explanation of Branches == |
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The simplest way to explain the existing shared branches is to associate them with the previous SVN ones. |
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* The *-unstable tags point to the matching SAMBA_X_X branch (e.g. SAMBA_3_2 or SAMBA_4_0) at the time of the migration. These are now tags an not branches so you cannot push to them. Instead, your local work should be done in a local branch and pushed when completed. There is no need to push works-in-progress any longer unless you require some specific testing by the buildfarm. |
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* The *-test branches correspond to the release series dev branch (e.g. SAMBA_3_2_0). Anyone may check into these branches. |
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* The *-stable branches are used for release purposes similar tothe SAMBA_X_X_RELEASE branches in SVN. These are under the control of the currentl release manager for a given release series. |
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== FAQ == |
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'''Q.''' How do I revert a commit? |
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'''A.''' The git-reset command allows you to reset the HEAD of the branch to any given point in history. To go back one commit, run "git-reset HEAD^". This will keep your local changes and you can make any additional changes before re-commiting the new work. Also see the "git-commit --amend" command and the "git-reset" man page for other examples. |
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'''Q.''' Is there a shorthand for git-push <URL> <local_repo:remote_repo>? |
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'''A.''' Yes. You can define a [remote "upstream"] section in your local repos .git/config file. |
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$ git-config remote.origin.url ssh://git.samba.org/data/git/samba.git |
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$ git-config remote.origin.push my_branch:v3-2-test |
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$ cat .git/config |
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... |
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[remote "origin"] |
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url = ssh://git.samba.org/data/git/samba.git |
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fetch = +refs/heads/*:refs/remotes/origin/* |
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push = my_branch:v3-2-test |
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[branch "my_branch"] |
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remote = origin |
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merge = refs/heads/v3-2-test |
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'''Q.''' How can I have access to the old CVS and SVN imported repositories via GIT without creating additional cloned repos? |
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'''A.''' You can add remote tracking repositories using git-remote: |
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$ git-remote add cvs git://git.samba.org/import/samba-cvsimport.git |
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$ git-fetch cvs |
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remote: Generating pack... |
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remote: Done counting 7070 objects. |
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Result has 5004 objects. |
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remote: Deltifying 5004 objects... |
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remote: 100% (5004/5004) done |
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Indexing 5004 objects... |
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remote: Total 5004 (delta 3836), reused 4098 (delta 3044) |
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100% (5004/5004) done |
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Resolving 3836 deltas... |
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100% (3836/3836) done |
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461 objects were added to complete this thin pack. |
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* refs/remotes/cvs/APPLIANCE_HEAD: storing branch 'APPLIANCE_HEAD' of git:// git.samba.org/import/samba-cvsimport |
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commit: af0e201 |
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You can then see the remote branches using "git-branch -r" and work with them in the same way you did for the "origin" branches obtained in the initial git-clone. |
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Latest revision as of 00:39, 23 June 2020
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