Sybren A. Stüvel
61fa63eb1d
Blender 2.78c is shipped with a version of the io_blend_utils module that doesn't have a `pythonpath()` function yet, and that's bundled with an older version of BAM. To work around this, we ship BAM as wheel, and detect whether this version is needed to run. As an added bonus, Blender 2.78c can now also use the file exclude filter for Flamenco. The `bam_supports_exclude_option()` function is thus no longer necessary.
67 lines
2.2 KiB
Python
67 lines
2.2 KiB
Python
# ##### BEGIN GPL LICENSE BLOCK #####
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (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 Foundation,
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# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#
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# ##### END GPL LICENSE BLOCK #####
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"""External dependencies loader."""
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import glob
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import os.path
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import sys
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import logging
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my_dir = os.path.join(os.path.dirname(__file__))
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log = logging.getLogger(__name__)
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def load_wheel(module_name, fname_prefix):
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"""Loads a wheel from 'fname_prefix*.whl', unless the named module can be imported.
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This allows us to use system-installed packages before falling back to the shipped wheels.
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This is useful for development, less so for deployment.
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"""
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try:
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module = __import__(module_name)
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except ImportError as ex:
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log.debug('Unable to import %s directly, will try wheel: %s',
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module_name, ex)
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else:
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log.debug('Was able to load %s from %s, no need to load wheel %s',
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module_name, module.__file__, fname_prefix)
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return
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sys.path.append(wheel_filename(fname_prefix))
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module = __import__(module_name)
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log.debug('Loaded %s from %s', module_name, module.__file__)
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def wheel_filename(fname_prefix: str) -> str:
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path_pattern = os.path.join(my_dir, '%s*.whl' % fname_prefix)
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wheels = glob.glob(path_pattern)
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if not wheels:
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raise RuntimeError('Unable to find wheel at %r' % path_pattern)
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# If there are multiple wheels that match, load the latest one.
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wheels.sort()
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return wheels[-1]
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def load_wheels():
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load_wheel('lockfile', 'lockfile')
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load_wheel('cachecontrol', 'CacheControl')
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load_wheel('pillarsdk', 'pillarsdk')
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