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[ Version 1.2 for Bazaar 1.2 ]
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[ Version 1.6 for Bazaar 1.6 ]
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Loggerhead is a web viewer for Bazaar branches. It can be used to
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navigate a branch history, annotate files, perform searches... all the
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To get started, first you need to create a 'loggerhead.conf' file
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specifying the branches you want to view. A 'loggerhead.conf.example'
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file is included in the source which has comments explaining the
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Loggerhead depends on:
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1) SimpleTAL for templating.
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On Ubuntu, `sudo apt-get install python-simpletal`
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or download from http://www.owlfish.com/software/simpleTAL/download.html
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2) simplejson for producing JSON data.
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On Ubuntu, `sudo apt-get install python-simplejson`
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or use `easy_install simplejson`.
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3) Paste for the server. (You need version 1.2 or newer of Paste.)
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On Ubuntu, `sudo apt-get install python-paste`
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or use `easy_install Paste`
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4) Paste Deploy (optional, needed when proxying through Apache)
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On Ubuntu, `sudo apt-get install python-pastedeploy`
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or use `easy_install PasteDeploy`
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Then simply run the 'serve-branches' with the branch you want to
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serve on the command line:
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./serve-branches ~/path/to/branch
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The script listens on port 8080 so head to http://localhost:8080/ in
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your browser to see the branch. You can also pass a directory that
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contains branches to the script, and it will serve a very simple
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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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To run loggerhead as a linux daemon:
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1) Copy loggerheadd to /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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3) Register the service
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a) on upstart based systems like Ubuntu run:
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update-rc.d loggerheadd defaults
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b) on Sysvinit based systems like Centos or SuSE run:
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chkconfig --add loggerheadd
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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 this file) at ``~/.bazaar/plugins/loggerhead``.
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Previous versions of Loggerhead read their configuration from a config
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file. This mode of operation is still supported by the
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'start-loggerhead' script. A 'loggerhead.conf.example' file is
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included in the source which has comments explaining the various
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Loggerhead can then be started by running::
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$ ./start-loggerhead.py
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This will run loggerhead in the background. It listens on port 8080
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by default, so go to http://localhost:8080/ in your browser to see the
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list of bublished branches.
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This will run loggerhead in the background, listening on port 8080 by
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To stop Loggerhead, run::
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$ ./stop-loggerhead.py
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In the configuration file you can configure projects, and branches per
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project. The idea is that you could be publishing several (possibly
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unrelated) projects through the same loggerhead instance, and several
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branches for the same project. See the "loggerhead.conf.example" file
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included with the source.
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A debug and access log are stored in the logs/ folder, relative to
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the location of the start-loggerhead script.
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SERVING LOGGERHEAD FROM 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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configuration is one way to do this::
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<Location "/branches/">
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ProxyPass http://127.0.0.1:8080/
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ProxyPassReverse http://127.0.0.1:8080/
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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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In the configuration file you can configure projects, and branches per
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project. The idea is that you could be publishing several (possibly
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unrelated) projects through the same loggerhead instance, and several
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branches for the same project. See the "loggerhead.conf.example" file
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included with the source.
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Although Loggerhead is a TurboGears (http://www.turbogears.org)
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project, don't bother with "dev.cfg" or any of the other TurboGears
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config files. Loggerhead overrides those values with its own.
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A debug and access log are stored in the logs/ folder, relative to
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the location of the start-loggerhead.py script.
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You may update the Bazaar branch at any time (for example, from a cron).
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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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To speed up operations with large branches, loggerhead can be configured
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to create three caches per branch when it first launches:
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- a revision data cache
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- a cache of files changed in a revision
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- a text searching cache
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You can put the cache folder anywhere.
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The revision data cache and text searching cache will be automatically
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filled once loggerhead starts up. The caches for a branch with 15,000
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revisions take about four minutes each on a fairly fast machine, but
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mileage may vary. Once they are built, they update every six hours or
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so but usually finish quickly (or instantly) after the initial creation.
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If Paste Deploy is installed, the '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 is using '--prefix=/some_path'.
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To speed up the display of the changelog view for large trees,
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loggerhead can be configured to cache the files changes between
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revisions. Set the 'cachepath' value in the config file.