Programmatically determining the Bazaar plugin directory

Is there a way to determine the Bazaar directory programmatically? If there is a bazaar comma开发者_运维百科nd to determine the plugin directory, this would be the best solution.

Bazaar plugins are searched for in the following directories:

* <pythonlib>/site-packages/bzrlib/plugins/ 
      (where <pythonlib> is something like usr/lib/python2.4, 
       depending on your installation)

* $HOME/.bazaar/plugins/

You can set the bazaar plugins directory via BZR_PLUGIN_PATH environement variable, also.

More on bazaar plugins: http://bazaar-vcs.org/BzrPlugins

According to the bazaar website, user plugins are looked for in ~/.bazaar/plugins by default, but may be overridden by the environment variable BZR_PLUGIN_PATH. So test if this variable is set, otherwise return the default. In python:

import os
user_plugin_path = os.environ.get('BZR_PLUGIN_PATH', '~/.bazaar/plugins')

Edit: this works for unix based systems, for windows the uses plugin path is $APPDATA/bazaar/2.0/plugins.

The system wide plugin is in bzrlib/plugins, see Installing a plugin down the page here. Use distutils to get the prefix (e.g. /usr/lib/python2.4/site-packages/bzrlib/plugins/) :

from distutils.sysconfig import get_python_lib
global_plugin_path = os.path.join(get_python_lib(), 'bzrlib/plugins')

(Thanks to The MYYN for providing the other documentation page)

Have a look at the Bazaar configuration: output of bzr version. Also see function show_version in bzrlib/version.py.

For the configuration directory use:

from bzrlib import config
print config.config_dir()

Or, for the user plugin path (see bzrlib/plugin.py):

from bzrlib import plugin
print plugin.get_user_plugin_path()

For a full list of plugin paths:

from bzrlib import plugin
print plugin.get_standard_plugins_path()

If you have bzr installed in your system you can use following Python snippet to get the list of directories where bzr looking for plugins:

 >>> import os
 >>> from bzrlib import plugin
 >>> list_of_bzr_plugins_paths = [os.path.abspath(p) 
         for p in plugin.get_standard_plugins_path()]