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Fix docplex upgrade with cplex installed to user site dir #33

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Fix docplex upgrade with cplex installed to user site dir #33

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49 changes: 7 additions & 42 deletions docplex/util/cli.py
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Original file line number Diff line number Diff line change
Expand Up @@ -9,14 +9,12 @@
# disclosure restricted by GSA ADP Schedule Contract with
# IBM Corp.
# --------------------------------------------------------------------------
import importlib.metadata
import sys
import json
import os
import subprocess
import shutil
import glob
import argparse
import sysconfig



Expand Down Expand Up @@ -57,55 +55,22 @@ def check_file(fname, write=False):
return ok


def get_cplex_info():
sub_program = """
try:
import cplex
import json
info = {"path": cplex.__path__[0], "version": cplex.__version__}
print(json.dumps(info))
except ModuleNotFoundError as e:
raise

"""

# This needs to be run as another process as there is no other
# way of unloading the 'cplex' module and since we will copy
# a new shared object over the already loaded one, leaving the
# cplex module loaded can create a segmentation fault.
out = subprocess.run([sys.executable, "-c", sub_program], capture_output=True)
if out.returncode == 0:
return json.loads(out.stdout.decode("utf-8"))
else:
error_message = out.stderr.decode("utf-8").strip()
raise Exception(f"Failed to retrieve cplex module path or version: {error_message}")


def copy_so(cos):
cos = os.path.realpath(cos)
pycplex = get_cplex_info()
dist = importlib.metadata.distribution('cplex')

version_mneumonic = "".join(pycplex["version"].split(".")[:3])
version_mneumonic = "".join(dist.version.split(".")[:3])
so_name = get_so_name(version_mneumonic)
cpo_name = get_cpo_name(version_mneumonic)

# Search cplex binaries in the bin and site-packages directories of the current Python environment
targets_path: list[str] = [sysconfig.get_path('purelib'), os.path.dirname(sys.executable)]
if sys.platform == "darwin":
targets_path.append(os.path.join(os.path.dirname(sys.executable), "Contents", "MacOS"))

so_targets: list[str] = []
cpo_targets: list[str] = []

for target_dir in targets_path:
so_targets.extend(glob.glob("{}/**/{}".format(target_dir, so_name), recursive=True))
cpo_targets.extend(glob.glob("{}/**/{}".format(target_dir, cpo_name), recursive=True))
so_targets = [file.locate().resolve() for file in dist.files if file.name == so_name]
cpo_targets = [file.locate().resolve() for file in dist.files if file.name == cpo_name]

if len(so_targets) == 0:
print("ERROR: did not find shared object file {} in {}".format(so_name, targets_path))
print("ERROR: did not find shared object file {}".format(so_name))
return 1
if len(cpo_targets) == 0:
print("ERROR: did not find executable file {} in {}".format(cpo_name, targets_path))
print("ERROR: did not find executable file {}".format(cpo_name))
return 1

#
Expand Down