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Bazaar plugin for Trac

Project description

This plugin is based on earlier plugins. Its main innovation is to make multiple branches available, the way Trac normally does.

Copyright (C) 2005 Edgewall Software
Copyright (C) 2005-2006 Christian Boos <cboos@neuf.fr>
Copyright (C) 2005 Johan Rydberg <jrydberg@gnu.org>
Copyright (C) 2006 Yann Hodique <hodique@lifl.fr>
Copyright (C) 2006 Jelmer Vernooij <jelmer@samba.org>
Copyright (C) 2006 Lukas Lalinsky <lalinsky@gmail.com>
Copyright (C) 2006 Marien Zwart <marienz@gentoo.org>
Copyright (C) 2006, 2007 Panoramic Feedback <abentley@panoramicfeedback.com>
Copyright (C) 2009 Martin von Gagern <Martin.vGagern@gmx.net>
All rights reserved.

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

Features

Repository views

Supports all major Trac views and “changeset:” notation.

Allows a collection of branches to be treated as a “trac repository”, regardless of whether they are related or in the same bzr repository.

Follows symlinks to branches.

Wiki Macros

Branches

The plugin provides a macro called [[Branches]] to list all available branches, together with some information about them, like the current revision number and the time of the last commit.

Installation

Basically the Plugins section of the Trac Guide applies to the installation of trac-bzr as well. It gives you several options how to install a plugin.

System-wide using easy_install

Executing the command “easy_install TracBzr” as root should install the plugin system-wide, making it available to all trac environments on that system.

Per-environment using plugin egg file

You can download the egg file corresponding to your python version and place it in the plugins directory of a Trac environment.

Building from source

If you want to build trac-bzr from source, you can either grab a source release tarball or a checkout of a development branch. Many development branches are listed on launchpad. Once you have obtained such a source tree, execute “python setup.py install” to install the plugin system-wide, or “python setup.py bdist_egg” to obtain an egg file for installation in a single Trac environment.

Requirements

In order to function properly, trac-bzr requires the packages listed below.

These dependencies are not handled by setuptools, because otherwise the plugin would fail to load if one of the dependencies wasn’t installed with setuptools or similar.

Python 2.4

This plugin uses bzrlib directly, so it requires Python 2.4 or greater.

Trac 0.10

Some features may only work with Trac 0.11. Trac 0.12 isn’t officially supported (yet).

Bazaar 2.0

This plugin should work with Bazaar 2.0. Earlier versions may or may not work.

Configuration

To configure trac-bzr, you’ll have to edit the trac.ini file of your Trac environment.

Required configuration

After installing, you’ll want to set the following values:

[components]
tracbzr.* = enabled

[trac]
repository_type = bzr
repository_dir = /path/to/collection/of/bzr/branches

components

This should include “tracbzr.* = enabled” to enable all features provided by the plugin. As an alternative, you can enable or disable specific components providing specific features, e.g. in order to disable the wiki macro provider. Use the Trac 0.11 web admin plugin interface or have a look at the sources to find out which components are available.

repository_dir

This should point at the directory containing your branches. This directory does not have to be a repository. trac-bzr doesn’t require branches to be related, though that is permitted, of course.

repository_type

This should be “bzr”.

Optional configuration

There are some optional settings you can configure for trac-bzr. If you do not specify them, the following defaults will be used instead:

[tracbzr]
primary_branches = ,trunk

primary_branches

This is a comma-separated ordered list of the main branches of your project. You may also specify glob patterns in this list to match multiple branches.

The Branches wiki macro will list branches in the order specified by this list. The timeline view will try to associate changesets with branches in the specified order. In both cases, branches not matched by any list item will be inserted at the end of the list, as if you had ended the list with ,*. Branches matched by a single list item will be sorted alphabetically.

Limitations

Bogus changesets

This plugin introduces the bogus changeset “current:”, which is used as the last-revision for directories that are not branches. It also provides “null:”, which is part of Bazaar’s theoretical model, but usually hidden.

Hidden nested branches

Because Trac, like Subversion, doesn’t differentiate between “source file namespace” and “branch namespace”, it is impossible to view branches whose directories are directly inside other branches’ directories.

Speed issues

Some user-level operations are rather slow, because Trac’s assumptions about which repository operations are cheap vs expensive doesn’t match Bazaar’s design. In particular, Bzr doesn’t track “which revision last modified files in this directory.” In theory, this can be solved by caching the results of expensive operations.

Revision order

If two changesets are not related to one another by some direct ancestry, i.e. if neither one is an ancestor of the other, then revisions are sorted by timestamp instead. In case of a clock skew this can lead to inconcistent results, as transitivity isn’t guaranteed for this approach.

Bracket syntax

Trac does not to recognize bzr revision strings in its bracket notation, e.g. [tree,25]. However, you can use the changeset notation instead, e.g. changeset:tree,25.

File encoding

Because at the moment Bazaar does not store information about encoding of text files, you may want to change the default character set used by trac. By default trac use encoding iso-8895-15 to show content of your files. If you need to change this option, you need to edit trac.ini of your project. In section “trac” you need to change parameter named “default_charset”. E.g. for russian files:

[trac]
default_charset = cp1251

Project details


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