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35
Introducing yourself
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36
====================
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Before you start working, it is good to tell Bazaar who you are. That
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way your work is properly identified in revision logs.
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Bazaar records changes to source code, and it records who made the change.
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The person is identified by their name and email address. (If you're
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concerned about spam, you don't need to use a real address that you
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actually read, but the convention is that it looks like an email address.)
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Using your name and email address, instead of John Doe's, type::
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Before you start working, let's tell Bazaar who you are. Using your name
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and email address, instead of John Doe's, type::
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$ bzr whoami "John Doe <john.doe@gmail.com>"
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Bazaar will now create or modify a configuration file, including your
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name and email address.
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Now, check that your name and email address are correctly registered::
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You can check what identity is stored in Bazaar's configuration::
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John Doe <john.doe@gmail.com>
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Putting files under version control
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===================================
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Let's create a directory and some files to use with Bazaar::
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$ touch test1.txt test2.txt test3.txt subdirectory/test4.txt
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**Note for Windows users**: use Windows Explorer to create your
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directories, then right-click in those directories and select
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``New file`` to create your files.
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Now get Bazaar to initialize itself in your project directory::
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If it looks like nothing happened, don't worry. Bazaar has created a
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branch_ where it will store your files and their revision histories.
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.. _branch: http://wiki.bazaar.canonical.com/Branch
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The next step is to tell Bazaar which files you want to track. Running
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``bzr add`` will recursively add everything in the project::
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added subdirectory/test4.txt
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Next, take a snapshot of your files by committing them to your branch. Add
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a message to explain why you made the commit::
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$ bzr commit -m "Initial import"
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As Bazaar is a distributed version control system, it doesn't need to
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connect to a central server to make the commit. Instead, Bazaar stores your
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branch and all its commits inside the directory you're working with; look
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for the ``.bzr`` sub-directory.
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Starting a new project
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======================
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Let's suppose we want to store a new project under Bazaar. First, we'll
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make a *repository directory* to hold all our work related to this
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project, where developers can create branches to test development of
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specific features or, more generally, modifications to the working file
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After creating the repository, change to that directory, and create the
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project's main trunk branch.
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$ bzr init-repo sample
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Shared repository with trees (format: 2a)
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shared repository: sample
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$ bzr init sample/trunk
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Created a repository tree (format: 2a)
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Using shared repository: /home/john/sample/
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Now that we have the trunk, we need to move to that directory and
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create some example files for the first version of that project. Create
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a file ``test1.txt`` using a text editor (like emacs, nano, or notepad),
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and save it. Then we'll "add" the file, which tells bzr we want it to
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and then commit, which saves a snapshot of all versioned files::
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bzr commit -m "Added first line of text"
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Making changes to your files
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95
============================
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Let's change a file and commit that change to your branch.
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Edit ``test1.txt`` in your favourite editor, then check what have you done::
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Edit ``test1.txt`` in your favourite editor, then use ``bzr add`` to tell bzr
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to track changes to this file ::
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$ echo test test test > test1.txt
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`bzr diff` shows the changes between the last revision in this branch, and your
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current tree (or, with the ``-r`` option, between any two trees). ::
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=== modified file 'test1.txt'
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You can see the history of your branch by browsing its log::
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------------------------------------------------------------
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committer: John Doe <john.doe@gmail.com>
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branch nick: myproject
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timestamp: Mon 2007-10-08 17:56:14 +0000
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Added first line of text
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------------------------------------------------------------
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committer: John Doe <john.doe@gmail.com>
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branch nick: myproject
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timestamp: Mon 2006-10-08 17:46:22 +0000
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Publishing your branch with sftp
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================================
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There are a couple of ways to publish your branch. If you already have
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an SFTP server or are comfortable setting one up, you can publish your
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Otherwise, skip to the next section to publish with Launchpad_, a free
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hosting service for Bazaar.
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.. _Launchpad: https://launchpad.net/
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Let's assume you want to publish your branch at ``www.example.com/myproject``::
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$ bzr push --create-prefix sftp://your.name@example.com/~/public_html/myproject
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2 revision(s) pushed.
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Bazaar will create a ``myproject`` directory on the remote server and
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push your branch to it.
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Now anyone can create their own copy of your branch by typing::
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$ bzr branch http://www.example.com/myproject
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**Note**: to use sftp, you may need to install ``paramiko`` and
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``pyCrypto``. See http://wiki.bazaar.canonical.com/InstallationFaq for details.
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Publishing your branch with Launchpad
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=====================================
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Launchpad is a suite of development and hosting tools for free
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software projects. You can use it to publish your branch.
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If you don't have a Launchpad account, follow the `account signup guide`_
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and `register an SSH key`_ in your new Launchpad account.
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.. _account signup guide: https://help.launchpad.net/CreatingYourLaunchpadAccount
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.. _register an SSH key: https://launchpad.net/people/+me/+editsshkeys
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Replacing ``john.doe`` with your own Launchpad username, type [#]_::
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$ bzr push lp:~john.doe/+junk/myproject
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.. [#] Use of the ``lp:`` URL scheme requires bzr 0.92 or later.
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**Note**: ``+junk`` means that this branch isn't associated with any particular
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project in Launchpad.
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Now, anyone can create their own copy of your branch by typing::
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$ bzr branch lp:~john.doe/+junk/myproject
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You can also see information about your branch, including its revision
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history, at https://code.launchpad.net/people/+me/+junk/myproject
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Publishing your branch on Launchpad
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===================================
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Launchpad is a suite of development and hosting tools for
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software projects. You can use it to publish your branch. (You can
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also publish branches onto your own server or other hosting services.)
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The steps to publishing branches on Launchpad are:
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1. Create a Launchpad account: visit the `Launchpad login page`_ and choose to create a new account.
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.. _Launchpad login page: https://launchpad.net/+login
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2. Bazaar uses the SSH encryption and authentication protocol to connect
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to Launchpad. You need to first `create an SSH key`_ on your own computer,
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by running the command::
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.. _create an SSH key: https://help.launchpad.net/YourAccount/CreatingAnSSHKeyPair
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3. `Upload your SSH public key to Launchpad`_.
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.. _Upload your SSH public key to Launchpad: https://launchpad.net/~/+editsshkeys
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4. `Make a team for your project`_. Even if you're starting as the only
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developer on this project, creating a new now will let you more easily
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add other people later.
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.. _Make a team for your project: https://help.launchpad.net/Teams/CreatingAndRunning
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5. `Create a project`_.
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.. _Create a project: https://help.launchpad.net/Projects/Registering
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6. Tell Bazaar your Launchpad account name. If your account is john.doe, type ::
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$ bzr launchpad-login john.doe
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7. `Push the branch for your project`_. Once you've committed your changes
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locally, you can publish them as the trunk of your new project by saying
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$ bzr push lp:~sample-developers/sample/trunk
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(Of course, using the team and project names you just chose.)
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.. _Push the branch for your project: https://help.launchpad.net/Code/UploadingABranch
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Creating your own copy of another branch
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========================================
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To work with someone else's code, you can make your own copy of their
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branch. Let's take a real-world example, Bazaar's GTK interface::
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$ bzr branch lp:~bzr/bzr-gtk/trunk bzr-gtk.john
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$ bzr init-repo ~/bzr-gtk
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$ bzr branch lp:~bzr/bzr-gtk/trunk ~/bzr-gtk/john
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Branched 292 revision(s).
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Bazaar will download all the files and complete revision history from the
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bzr-gtk project's trunk branch and create a copy called bzr-gtk.john.
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bzr-gtk project's trunk branch and create a copy called ``john``.
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Now, you have your own copy of the branch and can commit changes with
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or without a net connection. You can share your branch at any time by
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Committed revision 295.
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Merging your work into the parent branch
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========================================
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After you've worked on your personal branch of bzr-gtk, you may want to
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send your changes back upstream to the project. The easiest way is to
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use a merge directive.
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A merge directive is a machine-readable request to perform a
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particular merge. It usually contains a patch preview of the merge
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and either contains the necessary revisions, or provides a branch
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where they can be found.
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Replacing ``mycode.patch``, create your merge directive::
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$ bzr send -o mycode.patch
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Using saved parent location: http://bazaar.launchpad.net/~bzr/bzr-gtk/trunk
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You can now email the merge directive to the bzr-gtk project who, if
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they choose, can use it merge your work back into the parent branch.
added
removed
doc/en/mini-tutorial/index.txt
