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) -> bool: """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