~bzr-pqm/bzr/bzr.dev

# Copyright (C) 2006-2010 Canonical Ltd

#

# 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

"""Report on version of bzrlib"""

from __future__ import absolute_import

import os

import sys

import bzrlib

from bzrlib import (

    config,

    controldir,

    errors,

    osutils,

    trace,

    )

def show_version(show_config=True, show_copyright=True, to_file=None):

    import platform

    if to_file is None:

        to_file = sys.stdout

    to_file.write("Bazaar (bzr) %s\n" % bzrlib.__version__)

    # is bzrlib itself in a branch?

    src_tree = _get_bzr_source_tree()

    if src_tree:

        src_revision_id = src_tree.last_revision()

        revno = src_tree.branch.revision_id_to_revno(src_revision_id)

        to_file.write("  from bzr checkout %s\n" % (src_tree.basedir,))

        to_file.write("    revision: %s\n" % (revno,))

        to_file.write("    revid: %s\n" % (src_revision_id,))

        to_file.write("    branch nick: %s\n" % (src_tree.branch.nick,))

    to_file.write("  Python interpreter: ")

    # show path to python interpreter

    # (bzr.exe use python interpreter from pythonXY.dll

    # but sys.executable point to bzr.exe itself)

    # however, sys.frozen exists if running from bzr.exe

    # see http://www.py2exe.org/index.cgi/Py2exeEnvironment

    if getattr(sys, 'frozen', None) is None: # if not bzr.exe

        to_file.write(sys.executable + ' ')

    else:

        # pythonXY.dll

        basedir = os.path.dirname(sys.executable)

        python_dll = "python%d%d.dll" % sys.version_info[:2]

        to_file.write(os.path.join(basedir, python_dll) + ' ')

    # and now version of python interpreter

    to_file.write(bzrlib._format_version_tuple(sys.version_info))

    to_file.write('\n')

    to_file.write("  Python standard library:" + ' ')

    to_file.write(os.path.dirname(os.__file__) + '\n')

    to_file.write("  Platform: %s\n" % platform.platform(aliased=1))

    to_file.write("  bzrlib: ")

    if len(bzrlib.__path__) > 1:

        # print repr, which is a good enough way of making it clear it's

        # more than one element (eg ['/foo/bar', '/foo/bzr'])

        to_file.write(repr(bzrlib.__path__) + '\n')

    else:

        to_file.write(bzrlib.__path__[0] + '\n')

    if show_config:

        config_dir = osutils.normpath(config.config_dir())  # use native slashes

        if not isinstance(config_dir, unicode):

            config_dir = config_dir.decode(osutils.get_user_encoding())

        to_file.write("  Bazaar configuration: %s\n" % (config_dir,))

        to_file.write("  Bazaar log file: ")

        to_file.write(trace._bzr_log_filename + '\n')

    if show_copyright:

        to_file.write('\n')

        to_file.write(bzrlib.__copyright__ + '\n')

        to_file.write("http://bazaar.canonical.com/\n")

        to_file.write('\n')

        to_file.write("bzr comes with ABSOLUTELY NO WARRANTY.  bzr is free software, and\n")

        to_file.write("you may use, modify and redistribute it under the terms of the GNU\n")

        to_file.write("General Public License version 2 or later.\n")

        to_file.write("\nBazaar is part of the GNU Project to produce a free operating "

                "system.\n")

    to_file.write('\n')

def _get_bzr_source_tree():

    """Return the WorkingTree for bzr source, if any.

    If bzr is not being run from its working tree, returns None.

    """

    try:

        control = controldir.ControlDir.open_containing(__file__)[0]

        return control.open_workingtree(recommend_upgrade=False)

    except (errors.NotBranchError, errors.UnknownFormatError,

            errors.NoWorkingTree):

        return None