Source code for dolfinx.pkgconfig

# Copyright (C) 2018 Chris N Richardson
# This file is part of DOLFINx (
# SPDX-License-Identifier:    LGPL-3.0-or-later
"""Tool for querying pkg-config files

This module exists solely to extract the compilation and linking
information saved in the **dolfinx.pc** pkg-config file, needed for JIT

import os
import subprocess

def _pkgconfig_query(s):
    pkg_config_exe = os.environ.get('PKG_CONFIG', None) or 'pkg-config'
    cmd = [pkg_config_exe] + s.split()
    proc = subprocess.Popen(
        cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
    out, err = proc.communicate()
    rc = proc.returncode
    return (rc, out.rstrip().decode('utf-8'))

[docs]def exists(package): "Test for the existence of a pkg-config file for a named package" return (_pkgconfig_query("--exists " + package)[0] == 0)
[docs]def parse(package): "Return a dict containing compile-time definitions" parse_map = { '-D': 'define_macros', '-I': 'include_dirs', '-L': 'library_dirs', '-l': 'libraries' } result = {x: [] for x in parse_map.values()} # Execute the query to pkg-config and clean the result. out = _pkgconfig_query(package + ' --cflags --libs')[1] out = out.replace('\\"', '') # Iterate through each token in the output. for token in out.split(): key = parse_map.get(token[:2]) if key: t = token[2:].strip() result[key].append(t) return result