~bialix/bzr/2.0-bug-523069

#! /usr/bin/env python

# Copyright (C) 2005, 2006, 2007, 2008, 2009 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

"""Bazaar -- a free distributed version-control tool"""

import os

import sys

import warnings

# update this on each release

_script_version = (2, 0, 7)

if __doc__ is None:

    print "bzr does not support python -OO."

    sys.exit(2)

try:

    version_info = sys.version_info

except AttributeError:

    version_info = 1, 5 # 1.5 or older

REINVOKE = "__BZR_REINVOKE"

NEED_VERS = (2, 4)

KNOWN_PYTHONS = ('python2.4', 'python2.5', 'python2.6')

if version_info < NEED_VERS:

    if not os.environ.has_key(REINVOKE):

        # mutating os.environ doesn't work in old Pythons

        os.putenv(REINVOKE, "1")

        for python in KNOWN_PYTHONS:

            try:

                os.execvp(python, [python] + sys.argv)

            except OSError:

                pass

    sys.stderr.write("bzr: error: cannot find a suitable python interpreter\n")

    sys.stderr.write("  (need %d.%d or later)\n" % NEED_VERS)

    sys.exit(1)

if hasattr(os, "unsetenv"):

    os.unsetenv(REINVOKE)

profiling = False

if '--profile-imports' in sys.argv:

    sys.argv.remove('--profile-imports')

    import profile_imports

    profile_imports.install()

    profiling = True

if sys.platform == 'darwin':

    # jameinel says this hack is to force python to honor the LANG setting,

    # even on Darwin.  Otherwise it is apparently hardcoded to Mac-Roman,

    # which is incorrect for the normal Terminal.app which wants UTF-8.

    #

    # "It might be that I should be setting the "system locale" somewhere else

    # on the system, rather than setting LANG=en_US.UTF-8 in .bashrc.

    # Switching to 'posix' and setting LANG worked for me."

    #

    # So we can remove this if someone works out the right way to tell Mac

    # Python which encoding to use.  -- mbp 20080703

    sys.platform = 'posix'

    try:

        import locale

    finally:

        sys.platform = 'darwin'

else:

    import locale

# The python2.6 release includes some libraries that have deprecation warnings

# against the interpreter - see https://bugs.launchpad.net/bzr/+bug/387139

warnings.filterwarnings('ignore',

    r"(struct integer overflow masking is deprecated|"

    r"'L' format requires 0 <= number <= 4294967295)",

    DeprecationWarning,

    'gzip',

    )

try:

    locale.setlocale(locale.LC_ALL, '')

except locale.Error, e:

    sys.stderr.write('bzr: warning: %s\n'

                     '  bzr could not set the application locale.\n'

                     '  Although this should be no problem for bzr itself,\n'

                     '  it might cause problems with some plugins.\n'

                     '  To investigate the issue, look at the output\n'

                     '  of the locale(1p) tool available on POSIX systems.\n'

                     % e)

# instruct bzrlib/__init__.py to install lazy_regex

sys._bzr_lazy_regex = True

try:

    import bzrlib

except ImportError, e:

    sys.stderr.write("bzr: ERROR: "

        "Couldn't import bzrlib and dependencies.\n"

        "Please check the directory containing bzrlib is on your PYTHONPATH.\n"

        "\n")

    raise

if bzrlib.version_info[:3] != _script_version:

    sys.stderr.write("bzr: WARNING: bzrlib version doesn't match the bzr program.\n"

            "This may indicate an installation problem.\n"

            "bzrlib from %s is version %r\n"

            % (bzrlib.__path__, bzrlib.version_info))

import bzrlib.inspect_for_copy

bzrlib.inspect_for_copy.import_copy_with_hacked_inspect()

import bzrlib.breakin

bzrlib.breakin.hook_debugger_to_signal()

import bzrlib.decorators

if ('--lsprof' in sys.argv

    or '--lsprof-file' in sys.argv

    or '--profile' in sys.argv

    or '--lsprof-timed' in sys.argv):

    bzrlib.decorators.use_pretty_decorators()

else:

    bzrlib.decorators.use_fast_decorators()

import bzrlib.commands

import bzrlib.trace

if __name__ == '__main__':

    bzrlib.trace.enable_default_logging()

    exit_val = bzrlib.commands.main()

    if profiling:

        profile_imports.log_stack_info(sys.stderr)

    # run anything registered by atexit, because it won't be run in the normal

    # way

    sys.exitfunc()

    # By this point we really have completed everything we want to do, and

    # there's no point doing any additional cleanup.  Abruptly exiting here

    # stops any background threads getting into trouble as code is unloaded,

    # and it may also be slightly faster, through avoiding gc of objects that

    # are just about to be discarded anyhow.  This does mean that atexit hooks

    # won't run but we don't use them.  Also file buffers won't be flushed,

    # but our policy is to always close files from a finally block. -- mbp 20070215

    try:

        sys.stdout.flush()

        sys.stderr.flush()

    except IOError, e:

        import errno

        if e.errno in [errno.EINVAL, errno.EPIPE]:

            pass

        else:

            raise

    if bzrlib.trace._trace_file:

        # this is also _bzr_log

        bzrlib.trace._trace_file.flush()

    os._exit(exit_val)

else:

    raise ImportError("The bzr script cannot be imported.")