~bzr-pqm/bzr/bzr.dev

Managing the Bazaar PPA

=======================

See also: `Bazaar Developer Document Catalog <index.html>`_.

Background

----------

We build Ubuntu ``.deb`` packages for Bazaar as an important part of the release

process.  These packages are hosted in a few `Personal Package Archives (PPA)`__ on

Launchpad.

  __ https://help.launchpad.net/PPAQuickStart

As of June 2008, there are three PPAs:

<https://launchpad.net/~bzr/+archive>

    Final released versions.

<https://launchpad.net/~bzr-beta-ppa/+archive>

    Releases and release candidates.    

<https://launchpad.net/~bzr-nightly-ppa/+archive>

    Automatic nightly builds from trunk.

We build packages for every supported Ubuntu release

<https://wiki.ubuntu.com/Releases>.  Packages need no longer be updated

when the release passes end-of-life because all users should

have upgraded by then.  (As of May 2008, Edgy Eft is no longer supported.)

We build a distinct package for each distrorelease.  As of bzr 1.5, Dapper

uses ``python-support`` and later distributions use ``python-central``.

If you upload a release-specific version, you should add a suffix to the

package version, e.g. ``bzr.1.3-1~bazaar1~dapper1``.

Every package is first uploaded into the beta ppa.  For final release

versions it is also copied to the main PPA.

The packaging information is kept in branches of bzr on Launchpad, named

like 

<https://code.launchpad.net/~bzr/bzr/packaging-hardy>.

or

<lp:~bzr/bzr/packaging-hardy>.  These branches are intended to be used

with the ``bzr-builddeb`` plugin.

Preconditions

-------------

* You must have a Launchpad account and be a member of the teams 

  that own these PPAs (``~bzr``, ``~bzr-beta-ppa``).

* You must have a GPG key registered to your Launchpad account.

* Configure ``dput`` to upload to our PPA with this section in your

  ``~/.dput.cf``::

    [bzr-beta-ppa]

    fqdn = ppa.launchpad.net

    method = ftp

    incoming = ~bzr-beta-ppa/ubuntu

    login = anonymous

    allow_unsigned_uploads = 0

    [bzr-ppa]

    fqdn = ppa.launchpad.net

    method = ftp

    incoming = ~bzr/ubuntu

    login = anonymous

    allow_unsigned_uploads = 0

  You may also want to add these lines to prevent inadvertently attempting

  to upload into Ubuntu or Debian, which will give a somewhat unclear

  error::

    [DEFAULT]

    default_host_main = notspecified

* Configure ``bzr-builddeb`` to sign the package, which is required for

  Launchpad to build it.  Put this in ``~/.bazaar/builddeb.conf`` ::

      [BUILDDEB]

      builder = dpkg-buildpackage -rfakeroot

      source-builder= dpkg-buildpackage -rfakeroot -S -sa

* You need a Ubuntu (or probably Debian) machine, and ::

    sudo apt-get install build-essential devscripts dput quilt patch

* You will also want to have the `bzr-builddeb`_ plugin installed, which

  depends on `bzrtools`_.

.. _`bzr-builddeb`: http://launchpad.net/bzr-builddeb

.. _`bzrtools`: http://launchpad.net/bzrtools

Packaging Bazaar

----------------

Short form

~~~~~~~~~~

For people who have already set up everything they need, building the

release packages is as simple as::

  cd ~/dev/bzr/releases/packaging

  ln ~/dev/bzr/releases/bzr-1.6.tar.gz ./bzr_1.6.orig.tar.gz

  export UBUNTU_RELEASES="dapper feisty gutsy hardy intrepid"

  ~/dev/bzr/bzr.dev/tools/packaging/update-packaging-branches.sh

  ~/dev/bzr/bzr.dev/tools/packaging/update-changelogs.sh 1.6~beta3-1~bazaar1

  ~/dev/bzr/bzr.dev/tools/packaging/build-packages

  dput bzr-beta-ppa bzr_1.6~beta3-1~bazaar1*.changes

Long Form

~~~~~~~~~

#. You will end up checking out a separate directory for each supported

   release. Such as ``~/dev/bzr/releases/packaging/hardy``

#. Decide on the final version number.  It should be of this form::

     bzr-1.6~beta3-1~bazaar1~hardy1

   **Note:** There are three hyphen-separated parts: the *package name*,

   the *upstream version*, and the *packaging version*.

   **Caution:** Upstream betas or release candidates must insert a tilde

   to make them sort before the final release, like this:

   ``bzr-1.6~beta3-1~bazaar1~hardy1``.

   Final releases will use a release string of the form:

   ``bzr-1.6-1~bazaar1~hardy1``

#. Export the distroreleases that you will be packaging for::

      export UBUNTU_RELEASES="dapper feisty gutsy hardy intrepid"

#. Checkout (or update) the packaging branch for each supported release::

      bzr co lp:~bzr/bzr/packaging-hardy

   There is a script available to help::

      tools/packaging/update-packaging-branches.sh

#. The ``bzr-builddeb`` step will download the original tarball if you do

   not already have it, putting it into a ``tarballs`` directory.

#. For Bazaar plugins, change the ``debian/control`` file to express a

   dependency on the correct version of ``bzr``.

   For bzrtools this is typically::

      Build-Depends-Indep: bzr (>= 1.6~), rsync

      Depends: ${python:Depends}, bzr (>= 1.6~), bzr (<< 1.7~), patch

#. Make a new ``debian/changelog`` entry for the new release,

   either by using ``dch`` or just editing the file::

      dch -v '1.6~beta3-1~bazaar1~hardy1' -D hardy

   dch will default to the distro you're working in and this isn't checked

   against the version number (which is just our convention), so make sure 

   to specify it.

   Make sure you have the correct email address for yourself, version

   number, and distribution.  It should look something like this::

       bzr (1.6~beta3-1~bazaar1~hardy1) hardy; urgency=low

        * New upstream release.

       -- John Sample <sample@example.com>  Mon, 31 Mar 2008 12:36:27 +1100

   If you need to upload the package again to fix a problem, normally you

   should increment the last number in the version number, following the

   distro name.  Make sure not to omit the initial ``-1``, and make sure

   that the distro name in the version is consistent with the target name

   outside the parenthesis.

   You will also want to commit these changes into the packaging branch.

   There is a helper script which will update the changelog and commit it

   for all of your ``$UBUNTU_RELEASES``. It is available as::

      tools/packaging/update-changelogs.sh

   You must supply the release string, such as::

      tools/packaging/update-changelogs.sh 1.6~beta3-1~bazaar1

   It will automatically append the distro numbering on the end.

#. Build the source packages::

      cd packaging-$DISTRO; bzr builddeb -S

   This will create a ``.changes`` file.  If you didn't configure builddeb

   to automatically sign them, you can use ::

      debsign -m$UID *.changes

   where ``$UID`` is the gpg key you want to use to sign the changes.

#. Upload into the beta PPA for each release::

     dput bzr-beta-ppa bzr_1.6-1*.changes

#. For final release versions, also copy it into the ``~bzr`` PPA::

     dput bzr-ppa ../bzr_1.6-1\~bazaar1\~hardy1\_source.changes

   Alternatively, you can use Launchpad's "copy" feature to copy the

   packages between repositories.

#. You should soon get an "upload accepted" mail from Launchpad, which

   means that your package is waiting to be built.  You can then track its

   progress in <https://launchpad.net/~bzr-beta-ppa/+archive> and

   <https://launchpad.net/~bzr-beta-ppa/+archive/+builds>.

Packaging bzr-svn

~~~~~~~~~~~~~~~~~

bzr-svn uses bzr-builddeb in "split" mode, where the packaging branch

contains both the source and the ``debian/`` directory, and the

``orig.tar.gz`` is split off when building the packgae.

To build bzr-svn:

#. Get a checkout of ``lp:~bzr/bzr-svn/hardy-ppa/``

#. Merge from ``http://bzr.debian.org/pkg-bazaar/bzr-svn/experimental/``

   This should bring in both upstream and packaging changes for the new

   release, and it's updated as part of the bzr-svn release process.

#. ``export UPSTREAM_VERSION=bzr-svn-0.4.15`` or similar

#. Run ``dch -v 0.4.15-1~bazaar1-hardy1 -D hardy`` or similar

#. Run ``bzr builddeb --source``

   bzr-builddeb will automatically check out the appropriate tag from the

   main branch of bzr-svn, build, and package it.

#. ``dput bzr-beta-ppa ../bzr-svn_0.4.15-1~bazaar1~hardy1_source.changes``

Monitoring the contents of PPAs

-------------------------------

If you add all the bzr PPAs to your ``sources.list`` then you can see a

summary of current package versions with::

  apt-cache madison bzr

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