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b3021e4f6b
flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics --exclude benchmark Excluding the benchmark directory (due to protobuf generated files) Also removing some Python2 specific code
62 lines
1.6 KiB
Python
62 lines
1.6 KiB
Python
"""utils for patching libraries"""
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# Copyright (c) PyZMQ Developers.
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# Distributed under the terms of the Modified BSD License.
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import re
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import sys
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import os
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import logging
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from .misc import get_output_error
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pjoin = os.path.join
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# LIB_PAT from delocate
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LIB_PAT = re.compile(r"\s*(.*) \(compatibility version (\d+\.\d+\.\d+), "
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r"current version (\d+\.\d+\.\d+)\)")
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def _get_libs(fname):
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rc, so, se = get_output_error(['otool', '-L', fname])
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if rc:
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logging.error("otool -L %s failed: %r", fname, se)
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return
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for line in so.splitlines()[1:]:
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m = LIB_PAT.match(line)
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if m:
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yield m.group(1)
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def _find_library(lib, path):
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"""Find a library"""
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for d in path[::-1]:
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real_lib = os.path.join(d, lib)
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if os.path.exists(real_lib):
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return real_lib
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return None
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def _install_name_change(fname, lib, real_lib):
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rc, so, se = get_output_error(['install_name_tool', '-change', lib, real_lib, fname])
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if rc:
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logging.error("Couldn't update load path: %s", se)
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def patch_lib_paths(fname, library_dirs):
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"""Load any weakly-defined libraries from their real location
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(only on OS X)
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- Find libraries with `otool -L`
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- Update with `install_name_tool -change`
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"""
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if sys.platform != 'darwin':
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return
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libs = _get_libs(fname)
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for lib in libs:
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if not lib.startswith(('@', '/')):
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real_lib = _find_library(lib, library_dirs)
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if real_lib:
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_install_name_change(fname, lib, real_lib)
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__all__ = ['patch_lib_paths']
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