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Loggerhead: A web viewer for ``bzr`` branches
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==============================================
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Loggerhead is a web viewer for projects in Bazaar. It can be used to navigate
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a branch history, annotate files, view patches, perform searches, etc.
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Loggerhead is heavily based on `bazaar-webserve
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<https://launchpad.net/bzr-webserve>`_, which was, in turn, loosely
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based on `hgweb <http://mercurial.selenic.com/wiki/HgWebDirStepByStep>`_.
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Loggerhead depends on the following Python libraries.:
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- SimpleTAL for templating.
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- simplejson for producing JSON data.
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- Paste for the server. (You need version 1.2 or newer of Paste).
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- Paste Deploy (optional, needed when proxying through Apache).
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- flup (optional, needed to use FastCGI, SCGI or AJP).
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Installing Dependencies Using Ubuntu Packages
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#############################################
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$ sudo apt-get install python-simpletal
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$ sudo apt-get install python-simplejson
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$ sudo apt-get install python-paste
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$ sudo apt-get install python-pastedeploy
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$ sudo apt-get install python-flup
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Installing Dependencies Using :command:`easy_install`
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#####################################################
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-f http://www.owlfish.com/software/simpleTAL/py2compatible/download.html \
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$ easy_install simplejson
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$ easy_install PasteDeploy
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Running the Standalone Loggerhead Server
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----------------------------------------
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After installing all the dependencies, you should be able to run
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:command:`serve-branches` with the branch you want to serve on the
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./serve-branches ~/path/to/branch
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By default, the script listens on port 8080, so head to
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http://localhost:8080/ in your browser to see the branch.
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You can also pass a directory that contains branches to the script,
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and it will serve a very simple directory listing at other pages.
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You may update the Bazaar branches being viewed at any time.
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Loggerhead will notice and refresh, and Bazaar uses its own branch
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locking to prevent corruption.
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See :doc:`serve-branches` for all command line options.
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Running Loggerhead as a Daemon
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------------------------------
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To run Loggerhead as a linux daemon:
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1) Copy the ``loggerheadd`` scipt to ``/etc/init.d``
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$ sudo cp ./loggerheadd /etc/init.d
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2) Edit the file to configure where your Loggerhead is installed, and which
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serve-branches options you would like.
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$ sudo vim /etc/init.d/loggerheadd
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3) Register the service
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# on upstart based systems like Ubuntu run:
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$ sudo update-rc.d loggerheadd defaults
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# on Sysvinit based systems like Centos or SuSE run:
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$ sudo chkconfig --add loggerheadd
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Using Loggerhead as a Bazaar Plugin
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------------------------------------
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This branch contains experimental support for using Loggerhead as a Bazaar
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plugin. To use it, place the top-level Loggerhead directory (the one
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containing COPYING.txt) at ``~/.bazaar/plugins/loggerhead``. E.g.:
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$ bzr branch lp:loggerhead ~/.bazaar/plugins/loggerhead
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To hide branches from being displayed, add to ``~/.bazaar/locations.conf``,
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under the branch's section:
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More configuration options to come soon.
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Serving Loggerhead behind Apache
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--------------------------------
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If you want to view Bazaar branches from your existing Apache
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installation, you'll need to configure Apache to proxy certain
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requests to Loggerhead. Adding lines like this to your Apache
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configuration is one way to do this:
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.. code-block:: apache
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<Location "/branches/">
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ProxyPass http://127.0.0.1:8080/branches/
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ProxyPassReverse http://127.0.0.1:8080/branches/
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If Paste Deploy is installed, the :command:`serve-branches` script can be
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run behind a proxy at the root of a site, but if you're running it at
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some path into the site, you'll need to specify it using
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``--prefix=/some_path``.
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Search is currently supported by using the bzr-search plugin (available
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at: https://launchpad.net/bzr-search ).
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You need to have the plugin installed and each branch indexed to allow
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searching on branches.
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Command-Line Reference
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----------------------
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Discussion should take place on the bazaar-dev mailing list at
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mailto:bazaar@lists.canonical.com. You can join the list at
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<https://lists.ubuntu.com/mailman/listinfo/bazaar>. You don't need to
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subscribe to post, but your first post will be held briefly for manual
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Bugs, support questions and merge proposals are tracked on Launchpad, e.g:
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https://bugs.launchpad.net/loggerhead
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To run Loggerhead tests, you will need to install the package ``python-nose``,
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and run its :command:`nosetests` script in the Loggerhead directory:
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https://launchpad.net/loggerhead
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docs/index.rst
