spack/bin/spack
Massimiliano Culpo 1fb38c9e04
Vendor ordereddict for python2.6 only (#6931)
* Vendor ordereddict for python2.6 only

This commit substitutes the custom module 'ordereddict_backport' with
the more known 'ordereddict' and vendors it only for python 2.6. Other
supported versions of python will use 'collections.OrderedDict'.

* Use absolute imports also for python 2.6

See PEP-328 for more information on the subject

* Added provenance of vendored ordereddict
2018-01-16 07:00:39 +01:00

85 lines
3.4 KiB
Python
Executable file

#!/usr/bin/env python
##############################################################################
# Copyright (c) 2013-2017, Lawrence Livermore National Security, LLC.
# Produced at the Lawrence Livermore National Laboratory.
#
# This file is part of Spack.
# Created by Todd Gamblin, tgamblin@llnl.gov, All rights reserved.
# LLNL-CODE-647188
#
# For details, see https://github.com/spack/spack
# Please also see the NOTICE and LICENSE files for our notice and the LGPL.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License (as
# published by the Free Software Foundation) version 2.1, February 1999.
#
# 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 terms and
# conditions of the GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser 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
##############################################################################
from __future__ import print_function
import os
import sys
if sys.version_info[:2] < (2, 6):
v_info = sys.version_info[:3]
sys.exit("Spack requires Python 2.6 or higher."
"This is Python %d.%d.%d." % v_info)
# Find spack's location and its prefix.
spack_file = os.path.realpath(os.path.expanduser(__file__))
spack_prefix = os.path.dirname(os.path.dirname(spack_file))
# Allow spack libs to be imported in our scripts
spack_lib_path = os.path.join(spack_prefix, "lib", "spack")
sys.path.insert(0, spack_lib_path)
# Add external libs
spack_external_libs = os.path.join(spack_lib_path, "external")
if sys.version_info[:2] == (2, 6):
sys.path.insert(0, os.path.join(spack_external_libs, 'py26'))
sys.path.insert(0, spack_external_libs)
# Handle vendoring of YAML specially, as it has two versions.
if sys.version_info[0] == 2:
spack_yaml_libs = os.path.join(spack_external_libs, "yaml/lib")
else:
spack_yaml_libs = os.path.join(spack_external_libs, "yaml/lib3")
sys.path.insert(0, spack_yaml_libs)
# Quick and dirty check to clean orphaned .pyc files left over from
# previous revisions. These files were present in earlier versions of
# Spack, were removed, but shadow system modules that Spack still
# imports. If we leave them, Spack will fail in mysterious ways.
# TODO: more elegant solution for orphaned pyc files.
orphaned_pyc_files = [
os.path.join(spack_external_libs, 'functools.pyc'),
os.path.join(spack_external_libs, 'ordereddict.pyc'),
os.path.join(spack_lib_path, 'spack', 'platforms', 'cray_xc.pyc'),
os.path.join(spack_lib_path, 'spack', 'cmd', 'package-list.pyc'),
os.path.join(spack_lib_path, 'spack', 'cmd', 'test-install.pyc'),
os.path.join(spack_lib_path, 'spack', 'cmd', 'url-parse.pyc'),
os.path.join(spack_lib_path, 'spack', 'test', 'yaml.pyc')
]
for pyc_file in orphaned_pyc_files:
if not os.path.exists(pyc_file):
continue
try:
os.remove(pyc_file)
except OSError as e:
print("WARNING: Spack may fail mysteriously. "
"Couldn't remove orphaned .pyc file: %s" % pyc_file)
# Once we've set up the system path, run the spack main method
import spack.main # noqa
sys.exit(spack.main.main())