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bzrlib/version.py

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# Copyright (C) 2006-2010 Canonical Ltd

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#

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# This program is free software; you can redistribute it and/or modify

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# it under the terms of the GNU General Public License as published by

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# the Free Software Foundation; either version 2 of the License, or

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# (at your option) any later version.

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#

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# This program is distributed in the hope that it will be useful,

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# but WITHOUT ANY WARRANTY; without even the implied warranty of

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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

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# GNU General Public License for more details.

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#

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# You should have received a copy of the GNU General Public License

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# along with this program; if not, write to the Free Software

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

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"""Report on version of bzrlib"""

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import os

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import sys

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import bzrlib

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from bzrlib import (

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    bzrdir,

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    config,

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    errors,

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    osutils,

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    trace,

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    )

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from bzrlib.branch import Branch

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

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    import platform

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    if to_file is None:

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        to_file = sys.stdout

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

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    # is bzrlib itself in a branch?

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    src_tree = _get_bzr_source_tree()

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    if src_tree:

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        src_revision_id = src_tree.last_revision()

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        revno = src_tree.branch.revision_id_to_revno(src_revision_id)

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

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

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

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

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    to_file.write("  Python interpreter: ")

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    # show path to python interpreter

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

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

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

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

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

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        to_file.write(sys.executable + ' ')

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    else:

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        # pythonXY.dll

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

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

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

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    # and now version of python interpreter

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

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    to_file.write('\n')

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

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

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

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    to_file.write("  bzrlib: ")

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    if len(bzrlib.__path__) > 1:

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

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

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

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    else:

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

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    if show_config:

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        config_dir = os.path.normpath(config.config_dir())  # use native slashes

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        if not isinstance(config_dir, unicode):

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

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

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        to_file.write("  Bazaar log file: ")

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

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    if show_copyright:

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        to_file.write('\n')

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

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

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        to_file.write('\n')

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

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

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

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

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                "system.\n")

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    to_file.write('\n')

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def _get_bzr_source_tree():

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

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

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    """

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    try:

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        control = bzrdir.BzrDir.open_containing(__file__)[0]

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        return control.open_workingtree(recommend_upgrade=False)

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    except (errors.NotBranchError, errors.UnknownFormatError,

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            errors.NoWorkingTree):

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        return None

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